dnscrypt-proxy-1.9.4/000755 000765 000024 00000000000 13040635350 014145 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/aclocal.m4000644 000765 000024 00000152071 13040635301 016007 0ustar00jstaff000000 000000 # generated automatically by aclocal 1.15 -*- Autoconf -*- # Copyright (C) 1996-2014 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) m4_ifndef([AC_AUTOCONF_VERSION], [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, [m4_warning([this file was generated for autoconf 2.69. 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See the GNU dnl General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA dnl 02111-1307, USA. dnl dnl As a special exception to the GNU General Public License, if you dnl distribute this file as part of a program that contains a dnl configuration script generated by Autoconf, you may include it under dnl the same distribution terms that you use for the rest of that dnl program. dnl PKG_PREREQ(MIN-VERSION) dnl ----------------------- dnl Since: 0.29 dnl dnl Verify that the version of the pkg-config macros are at least dnl MIN-VERSION. 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(tar --version) >/dev/null 2>&1 && continue am__tar='tar chf - "$$tardir"' am__tar_='tar chf - "$tardir"' am__untar='tar xf -' ;; pax) am__tar='pax -L -x $1 -w "$$tardir"' am__tar_='pax -L -x $1 -w "$tardir"' am__untar='pax -r' ;; cpio) am__tar='find "$$tardir" -print | cpio -o -H $1 -L' am__tar_='find "$tardir" -print | cpio -o -H $1 -L' am__untar='cpio -i -H $1 -d' ;; none) am__tar=false am__tar_=false am__untar=false ;; esac # If the value was cached, stop now. We just wanted to have am__tar # and am__untar set. test -n "${am_cv_prog_tar_$1}" && break # tar/untar a dummy directory, and stop if the command works. rm -rf conftest.dir mkdir conftest.dir echo GrepMe > conftest.dir/file AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) rm -rf conftest.dir if test -s conftest.tar; then AM_RUN_LOG([$am__untar /dev/null 2>&1 && break fi done rm -rf conftest.dir AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) AC_MSG_RESULT([$am_cv_prog_tar_$1])]) AC_SUBST([am__tar]) AC_SUBST([am__untar]) ]) # _AM_PROG_TAR m4_include([m4/ax_check_compile_flag.m4]) m4_include([m4/ax_check_link_flag.m4]) m4_include([m4/libtool.m4]) m4_include([m4/ltargz.m4]) m4_include([m4/ltdl.m4]) m4_include([m4/ltoptions.m4]) m4_include([m4/ltsugar.m4]) m4_include([m4/ltversion.m4]) m4_include([m4/lt~obsolete.m4]) dnscrypt-proxy-1.9.4/apparmor.profile.dnscrypt-proxy000644 000765 000024 00000001577 13037731714 022415 0ustar00jstaff000000 000000 # Last Modified: Tue Dec 02 22:20:12 2014 #include /usr/sbin/dnscrypt-proxy { #include network inet stream, network inet6 stream, network inet dgram, network inet6 dgram, capability net_admin, capability net_bind_service, capability setgid, capability setuid, capability sys_chroot, capability ipc_lock, /bin/false r, /etc/dnscrypt-proxy.conf r, /etc/ld.so.cache r, /etc/nsswitch.conf r, /etc/passwd r, # Resolvers list /usr/share/dnscrypt-proxy/dnscrypt-resolvers.csv r, # In case of custom libldns installation /usr/local/lib/{@{multiarch}/,}libldns.so* mr, # In case of custom libsodium installation /usr/local/lib/{@{multiarch}/,}libsodium.so* mr, # Reasonable pidfile location - tweak this if you prefer a different one /run/dnscrypt-proxy.pid rw, # Systemd notificaion /run/systemd/notify rw, } dnscrypt-proxy-1.9.4/AUTHORS000644 000765 000024 00000000317 13037731714 015225 0ustar00jstaff000000 000000 libevent -------- see http://libevent.org/ for more info about this library and the src/libevent/README file for the list of contributors. dnscrypt-proxy -------------- Frank Denis dnscrypt-proxy-1.9.4/autogen.sh000755 000765 000024 00000001120 13037731714 016147 0ustar00jstaff000000 000000 #! /bin/sh if ! pkg-config --version > /dev/null 2>&1 ; then echo 'pkg-config not found.' >&2 echo 'Make sure that pkg-config is installed on your system.' >&2 exit 1 fi if autoreconf --version > /dev/null 2>&1 ; then exec autoreconf -ivf fi if glibtoolize --version > /dev/null 2>&1; then LIBTOOLIZE='glibtoolize' else LIBTOOLIZE='libtoolize' fi src/libevent-modified/autogen.sh & cpid1=$! src/libsodium/autogen.sh & cpid2=$! $LIBTOOLIZE --ltdl && \ aclocal && \ autoheader && \ automake --add-missing --force-missing --include-deps && \ autoconf wait $cpid1 wait $cpid2 dnscrypt-proxy-1.9.4/ChangeLog000644 000765 000024 00000702742 13040614023 015725 0ustar00jstaff000000 000000 * Sat Jan 21 09:09:07 2017 +0100 "make clean" is not super interesting to log * Sat Jan 21 08:55:34 2017 +0100 Revert "New resolver in Tokyo, Japan: LifeTyper" * Sat Jan 21 08:55:16 2017 +0100 Trusty is old * Sat Jan 21 08:49:23 2017 +0100 Travis doesn't support IPv6 yet * Sat Jan 21 08:48:56 2017 +0100 Travis: attempt install/uninstall + ./contrib/resolvers-check.sh * Sat Jan 21 08:45:58 2017 +0100 resolvers-check.sh: IPV4_ONLY can be set to probe only IPv4 resolvers * Sat Jan 21 08:12:53 2017 +0100 Move dnscrypt-update-resolvers.sh.in and resolvers-check.sh to contrib/ * Sat Jan 21 08:11:41 2017 +0100 Update .gitignore * Sat Jan 21 08:05:08 2017 +0100 Use printunl/archlinux for the Windows builds * Sat Jan 21 02:59:46 2017 +0100 New resolver in Tokyo, Japan: LifeTyper * Sat Jan 21 02:54:08 2017 +0100 Use a random resolver in the tests * Sat Jan 21 02:48:59 2017 +0100 Indent * Sat Jan 21 02:45:03 2017 +0100 win32-win64-xcompile.sh: always compile from the script's directory * Sat Jan 21 01:52:27 2017 +0100 In the Windows dist, remove the sample conf, add WINDOWS doc * Sat Jan 21 00:00:55 2017 +0100 Update NEWS * Sat Jan 21 00:00:10 2017 +0100 Update ChangeLog * Fri Jan 20 23:58:24 2017 +0100 Fix libsodium warning * Fri Jan 20 23:45:33 2017 +0100 CLEANFILES += dnscrypt-update-resolvers.sh * Fri Jan 20 23:43:58 2017 +0100 Do not install the systemd files Package maintainers will do a way better job with these * Fri Jan 20 23:40:21 2017 +0100 Generate org.dnscrypt.osx.DNSCryptProxy.plist from a template * Fri Jan 20 23:29:26 2017 +0100 Reduce the difference between Android and iOS builds * Fri Jan 20 23:13:18 2017 +0100 Always include stdlib.h in evutil_rand.c * Fri Jan 20 23:09:26 2017 +0100 Make the builds a little bit more silent * Fri Jan 20 22:57:16 2017 +0100 Split * Fri Jan 20 22:40:54 2017 +0100 Regen the man page * Fri Jan 20 22:39:50 2017 +0100 Update ChangeLog * Fri Jan 20 22:37:01 2017 +0100 Support "random" as a resolver name to pick a random resolver * Fri Jan 20 21:32:03 2017 +0100 Install examples in @docdir@, create systemd files from templates * Fri Jan 20 21:31:42 2017 +0100 Pay attention to @datarootdir@ in dnscrypt-update-resolvers.sh.in * Fri Jan 20 13:58:37 2017 +0100 Print when the configuration file did not change * Fri Jan 20 13:30:42 2017 +0100 1.9.4 * Fri Jan 20 13:30:57 2017 +0100 soltysiak down :( cs-lt up, cs-ua down. * Fri Jan 20 13:08:02 2017 +0100 Overwrite conf if the installed one is the vanilla example * Fri Jan 20 12:52:21 2017 +0100 Fix inverted logic in the installation of the example config file * Wed Jan 18 10:52:53 2017 +0100 cs-lt and d0wn-us-ns3 are temporarily unresponsive * Wed Jan 18 08:59:36 2017 +0100 Update ChangeLog * Wed Jan 18 08:46:40 2017 +0100 On Linux, warn when we are running low on entropy * Wed Jan 18 08:18:57 2017 +0100 Print even more details in test mode * Wed Jan 18 08:15:48 2017 +0100 Improve the test mode output and print the validity period * Wed Jan 18 03:15:58 2017 +0100 Travis: increase the margin for the certificate check * Wed Jan 18 03:15:46 2017 +0100 Recommend installing pkg-config and libsystemd-dev for systemd * Wed Jan 18 01:59:11 2017 +0100 Mention that NO_REUSEPORT is not required any more * Tue Jan 17 22:48:18 2017 +0100 build-base should be enough to build the package * Tue Jan 17 22:40:38 2017 +0100 d0wn-us-ns3 and soltysiak-ipv6 are temporarily down * Tue Jan 17 22:37:45 2017 +0100 1.9.3 * Tue Jan 17 22:34:53 2017 +0100 Update ChangeLog * Tue Jan 17 21:50:02 2017 +0100 Travis: actually try to install the proxy * Tue Jan 17 21:41:29 2017 +0100 Fix the Plugin directive in config files; add a CI test for it as well * Tue Jan 17 20:00:22 2017 +0100 Ignore ldconfig errors * Tue Jan 17 19:52:50 2017 +0100 Restore -e, ignore make install errors * Tue Jan 17 15:33:24 2017 +0100 Switch Travis builds to multiarch/alpine * Tue Jan 17 15:30:38 2017 +0100 Update NEWS * Tue Jan 17 15:27:01 2017 +0100 apt is not present on Travis * Tue Jan 17 15:22:04 2017 +0100 Travis: try to compile for multiple Linux architectures * Tue Jan 17 12:34:37 2017 +0100 If binding a TCP socket with SO_REUSEPORT fails, retry without it This is required at least on alpine/armhf * Tue Jan 17 12:09:45 2017 +0100 Check for linux/filter.h presence -- Allows compilation on musl libc * Tue Jan 17 01:37:11 2017 +0100 Mention that the Include path does not require quotes * Tue Jan 17 01:18:10 2017 +0100 --with-ttl was renamed --min-ttl * Tue Jan 17 00:38:42 2017 +0100 Fix casing * Mon Jan 16 23:52:20 2017 +0100 Do not print the plugins root directory on Windows * Mon Jan 16 20:01:34 2017 +0100 It's called "tracker.debian.org", but it's not a tracker * Mon Jan 16 14:10:30 2017 +0100 Do not install dnscrypt-proxy.conf.example if no dnscrypt-proxy.conf file exists * Sun Jan 15 18:56:07 2017 +0100 Update ChangeLog * Sun Jan 15 18:55:28 2017 +0100 Do not include on WIN32 * Sun Jan 15 18:23:42 2017 +0100 --version now reports useful information about how the server was compiled * Sun Jan 15 18:11:08 2017 +0100 Update ChangeLog * Sun Jan 15 17:51:10 2017 +0100 Remove the fpm package fpm is awesome, but apparently, nobody's using this script. * Sun Jan 15 17:42:07 2017 +0100 Prepare for version 1.9.2 * Sun Jan 15 17:19:09 2017 +0100 Fix KX when using xchacha20poly1305 and non-ephemeral keys * Sun Jan 15 16:27:38 2017 +0100 Warn when an obsolete libsodium version is found * Sun Jan 15 15:45:02 2017 +0100 Log the system error message when the TCP listener cannot be created * Sun Jan 15 15:12:19 2017 +0100 Update simpleconf * Sun Jan 15 10:03:17 2017 +0100 Indent * Sun Jan 15 09:58:32 2017 +0100 Move the !Include definition down * Sun Jan 15 01:56:38 2017 +0100 Document that recursive configuration files are now supported * Sun Jan 15 01:48:58 2017 +0100 Comment marktron's list in the sample domains-blacklist configuration * Sun Jan 15 01:40:56 2017 +0100 Shorten * Sun Jan 15 01:37:13 2017 +0100 simpleconf: support a handler for "special" keywords * Sun Jan 15 00:11:39 2017 +0100 Preliminary support for recursive configuration files * Sat Jan 14 23:59:25 2017 +0100 Improve the domains-blacklist.conf header * Sat Jan 14 23:55:22 2017 +0100 simpleconf: detach the code responsible for loading a config file * Fri Jan 13 22:13:54 2017 +0100 Improve the ProviderName example * Fri Jan 13 02:54:07 2017 +0100 Nits * Thu Jan 12 20:38:35 2017 +0100 Remove Quidsup Notrack by default -- too many FPs such as pusher * Thu Jan 12 20:31:15 2017 +0100 Do not block elasticbeanstalk.com * Wed Jan 11 10:04:25 2017 -0800 Add Dan Pollock's list * Wed Jan 11 00:48:36 2017 -0800 Use bounce buffers for crypto_box_detached_afternm emulation Required for ancient libsodium versions (stock Debian Jessie, Raspbian) * Tue Jan 10 13:26:52 2017 -0800 Include \0 in the key equality test * Tue Jan 10 10:48:50 2017 -0800 Iterate over the \0 terminator when inserting a new key * Tue Jan 10 00:28:34 2017 -0800 Mention how to run the python script * Sat Jan 7 15:24:35 2017 +0100 Unfortunately, blocking *.spotify.com breaks the app :/ * Sat Jan 7 10:53:44 2017 +0100 Nits * Sat Jan 7 10:37:56 2017 +0100 IgnoreTimeStamps weakens security -- do not enable blindly * Sat Jan 7 16:33:28 2017 +0700 Add Windows service properties IgnoreTimestamps and LogLevel Add "IgnoreTimestamps (--ignore-timestamps)" and "LogLevel (--loglevel)" for windows service parameter registry. So windows service parameter registry had the same option with the main program option. * Sat Jan 7 16:32:45 2017 +0700 Update README-WINDOWS.markdown (#548) * Update README-WINDOWS.markdown Fixed. Documentation for `windows_service.c` change. * Update README-WINDOWS.markdown * Sat Jan 7 10:30:14 2017 +0100 Redirect log messages whose level is < LOG_NOTICE to stderr * Fri Jan 6 18:14:18 2017 +0100 Attach a BPF filter to the client-side UDP socket * Fri Jan 6 16:02:10 2017 +0100 Typo * Fri Jan 6 15:18:09 2017 +0100 Do not enable SO_REUSEPORT is NO_REUSEPORT is defined `SO_REUSEPORT` is apparently buggy on older linux-sunxi kernels * Thu Jan 5 23:46:37 2017 +0100 Avoid the redefinition of the FPST type This fixes compilation on Debian 6 * Tue Jan 3 15:29:04 2017 +0100 Blocking tagcommander.com causes popular mobile apps to freeze :( * Tue Jan 3 15:17:40 2017 +0100 Whitelist some entries * Tue Jan 3 15:11:17 2017 +0100 Print the number of entries ignored because of the whitelist * Tue Jan 3 15:08:13 2017 +0100 Support a whitelist * Tue Jan 3 14:09:23 2017 +0100 Add TXT records * Tue Jan 3 07:21:08 2017 +0100 Don't assume that ## or #@ is an inline comment * Mon Jan 2 22:39:03 2017 +0100 Read the domains-blacklist.conf file from the command line if supplied * Mon Jan 2 22:10:10 2017 +0100 Refine the inline-comments macro * Mon Jan 2 21:56:17 2017 +0100 Add a few optional categories to domains-blacklist.conf * Mon Jan 2 21:35:02 2017 +0100 Add more spam/fraud/ads sources * Mon Jan 2 21:23:27 2017 +0100 Remove inline comments from blacklist entries * Mon Jan 2 13:41:00 2017 +0100 Keep daemonize uncommented * Mon Jan 2 13:40:17 2017 +0100 Mention that Daemonize is not for Windows * Mon Jan 2 12:35:30 2017 +0100 Re-remove resolvers that are still down: - cs-uswest - Failed - d0wn-dk-ns1 - Failed - d0wn-dk-ns1 - Failed - d0wn-fr-ns1 - Failed - d0wn-fr-ns1-ipv6 - Failed - d0wn-nl-ns2 - Failed * Mon Jan 2 06:29:50 2017 -0500 Update dnscrypt-resolvers.csv (#540) Removed original listing of Cryptostorm's DNS resolvers and added Cryptostorm's updated DNS resolvers from their github https://github.com/cryptostorm/cstorm_deepDNS/blob/master/dnscrypt-resolvers.csv Updated D0wn's list of DNS resolvers - According to https://dns.d0wn.biz/ "All servers are supporting DNSSEC." Updated d0wn's DNS resolvers to yes under DNSSEC column. - Added Austria, Bulgaria, Canada, Czech Republic, Denmark, France, Germany, Greece, Hong Kong, Lithuania, Moldova, Netherlands, Romania, Singapore, South Korea, Switzerland, Tanzania, United States of America - Rearranged Germany, Moldova, Spain, Sweden to coincide better Alphabetically Added Tumabox IPv6 DNS Resolver * Sun Jan 1 17:49:10 2017 +0100 Remove some d0wn resolver that are temporarily down * Sun Jan 1 17:31:55 2017 +0100 Update ChangeLog * Sun Jan 1 17:30:16 2017 +0100 generate-domains-blacklist.py: remove overlapping names * Sun Jan 1 15:23:42 2017 +0100 Include netinet/ip.h * Sun Jan 1 15:17:53 2017 +0100 Set the DSCP to AF32 * Sun Jan 1 08:00:55 2017 +0100 Fix stupid pasto in util_ntohl() * Sun Jan 1 07:26:53 2017 +0100 Block eth0.me * Sun Jan 1 00:22:01 2017 +0100 Regen man pages * Sat Dec 31 23:35:10 2016 +0100 Fix string comparison after a previous iteration * Sat Dec 31 23:08:35 2016 +0100 Keep the frame pointers to get nicer backtraces on Windows * Sat Dec 31 23:07:04 2016 +0100 Actually run pkg-config and autoreconf * Sat Dec 31 22:27:05 2016 +0100 A short update to the NEWS file * Sat Dec 31 22:24:02 2016 +0100 Update ChangeLog * Sat Dec 31 22:23:42 2016 +0100 Add the ability to specify the minimum TTL a record has to be cached * Sat Dec 31 21:58:44 2016 +0100 Remove an useless assertion * Sat Dec 31 20:48:11 2016 +0100 inline * Sat Dec 31 20:45:18 2016 +0100 Reduce the value to 32 bits * Sat Dec 31 20:37:28 2016 +0100 The max length of a key is 32767 bytes * Sat Dec 31 20:29:33 2016 +0100 2017 * Sat Dec 31 20:29:29 2016 +0100 C++ compat * Sat Dec 31 20:20:35 2016 +0100 Resume string comparison where we left after the previous iteration * Sat Dec 31 18:34:52 2016 +0100 Version bump * Sat Dec 31 18:32:40 2016 +0100 Rewrite the prefix matching algorithm for the blocking plugin * Thu Dec 29 21:06:38 2016 +0100 Add quotes around paths to blacklists in the example file Unnecessary for paths that don't include spaces, but paths with spaces are common on Windows, so make the example more universal. * Thu Dec 29 16:12:28 2016 +0100 Dragonfly BSD doesn't have any problems with -fstack-protector-strong * Thu Dec 29 13:55:32 2016 +0100 `--install-service-with-config-file` -> `--install-with-config-file` * Thu Dec 29 13:52:43 2016 +0100 Do not print references to man pages on Windows * Thu Dec 29 11:21:29 2016 +0100 Properly include the contrib dir in the dist tarball * Thu Dec 29 10:28:52 2016 +0100 Document what plugins can do * Thu Dec 29 09:15:19 2016 +0100 Update ChangeLog * Thu Dec 29 09:14:49 2016 +0100 Do not use --high-entropy-va on i686 * Thu Dec 29 09:03:22 2016 +0100 Typo * Thu Dec 29 08:42:29 2016 +0100 Update ChangeLog * Thu Dec 29 08:41:30 2016 +0100 Temporarily remove cs-uswest Since a new release is being tagged, this resolver cannot be included in the default list. * Thu Dec 29 08:32:43 2016 +0100 Update ChangeLog * Thu Dec 29 08:32:35 2016 +0100 + TCP for hostip * Thu Dec 29 08:31:04 2016 +0100 hostip: retry using TCP on truncated responses, dont change qname case * Thu Dec 29 08:16:32 2016 +0100 Update some m4 scripts * Thu Dec 29 07:48:18 2016 +0100 win[32|64]-xcompile: Force some link options even for dependencies * Thu Dec 29 07:38:55 2016 +0100 Tweak AX_CHECK_COMPILE_FLAG to also try to link the test program This simplifies the main configure script. Also try to use -fstack-protector-strong if available instead of -fstack-protector-all * Thu Dec 29 07:13:36 2016 +0100 The libsodium copy doesn't require POSIX threads on Windows * Thu Dec 29 00:33:08 2016 +0100 Add oas.* and oascentral.* (ads) * Thu Dec 29 00:12:29 2016 +0100 Don't assume that the proxy is in /usr/local for the systemd service People compiling the proxy themselves won't use systemd right away, and people using dnscrypt-proxy via systemd are likely to use system packages. * Thu Dec 29 00:07:51 2016 +0100 Update ChangeLog * Thu Dec 29 00:07:09 2016 +0100 Remove man pages, and .la files from the Windows distribution files * Wed Dec 28 23:56:51 2016 +0100 msys*: add the CSV + pub file to the root directory * Wed Dec 28 23:44:31 2016 +0100 Avoid ntohl() in example-ldns-blocking * Wed Dec 28 23:26:23 2016 +0100 Add *.workgroup * Wed Dec 28 23:25:12 2016 +0100 Block *.localdomain in the local-additions.txt example * Wed Dec 28 23:24:28 2016 +0100 Add SRV records * Wed Dec 28 23:11:13 2016 +0100 Try to enable TFO even after the listen() call * Wed Dec 28 22:32:37 2016 +0100 Update the ChangeLog * Wed Dec 28 22:28:58 2016 +0100 Use 1 fastopen queue on MacOS, 5 on Linux * Wed Dec 28 22:18:41 2016 +0100 Cache entries according to the minimum TTL, not the first one observed * Wed Dec 28 22:09:47 2016 +0100 Sync msys-* build scripts with the xcompile build script * Wed Dec 28 21:49:54 2016 +0100 Use sodium_memzero() to zero structures before a call to free() * Wed Dec 28 21:44:11 2016 +0100 Why I love Rust * Wed Dec 28 21:09:07 2016 +0100 Udpate ChangeLog * Wed Dec 28 21:08:51 2016 +0100 Mention plugins that require the ldns library * Wed Dec 28 17:32:11 2016 +0100 Improve plugin documentation * Wed Dec 28 17:09:56 2016 +0100 4 extra bytes after the qname are fine in a question RR * Wed Dec 28 16:55:01 2016 +0100 free() allocated command-line arguments when using the config parser * Wed Dec 28 16:51:01 2016 +0100 Allow options_parse() to alter argc/argv * Wed Dec 28 16:27:12 2016 +0100 Plug a memory leak when deleting the cache * Wed Dec 28 15:48:34 2016 +0100 options_read_file(): ensure that the output buffer is zero-terminated * Wed Dec 28 14:14:42 2016 +0100 Update ChangeLog * Wed Dec 28 14:14:29 2016 +0100 /etc/dnscrypt-proxy.conf is probably required in the apparmor profile * Wed Dec 28 13:48:10 2016 +0100 crypto_box_*_afternm() computes the hash, so it can't be shared * Wed Dec 28 13:21:22 2016 +0100 Print favored versions, not serials * Wed Dec 28 11:59:27 2016 +0100 Downgrade "Unsupported certificate version" to LOG_INFO * Wed Dec 28 11:45:00 2016 +0100 Do not assume that ntohl() is available without extra libraries * Wed Dec 28 11:13:54 2016 +0100 libgcc_s* is required after all :/ * Wed Dec 28 10:44:19 2016 +0100 Revert "Add -static-libgcc to mingw builds" * Wed Dec 28 10:43:55 2016 +0100 Revert "libgcc_s_*.dll should not be required any more" * Wed Dec 28 09:05:06 2016 +0100 Doc update * Wed Dec 28 08:45:24 2016 +0100 Block *.local and *.lan in domains-blacklist-local-additions.txt * Wed Dec 28 08:26:03 2016 +0100 Mention that LocalAddress doesn't work if systemd interferes * Wed Dec 28 00:48:48 2016 +0100 When using systemd, daemonization should apparently be disabled * Tue Dec 27 23:35:21 2016 +0100 Add domains-blacklist-local-additions.txt for... local additions * Tue Dec 27 22:22:12 2016 +0100 Fix more memory leaks on error path * Tue Dec 27 21:45:34 2016 +0100 Update the NEWS file for version 1.9.0 * Tue Dec 27 21:21:25 2016 +0100 Update ChangeLog * Tue Dec 27 21:10:29 2016 +0100 Sign * Tue Dec 27 21:10:14 2016 +0100 d0wn-ua-ns1 is down * Tue Dec 27 21:07:39 2016 +0100 Change ifreenet location to unicast * Wed Dec 28 03:04:32 2016 +0700 Added d0wn Indonesia resolver (#522) Added d0wn Indonesia resolver from https://dns.d0wn.biz * Tue Dec 27 20:54:04 2016 +0100 Plug leak on error path * Tue Dec 27 20:33:20 2016 +0100 Add Forward domains:() to:() * Tue Dec 27 20:08:11 2016 +0100 Mention that `--service-name` only makes sense with `--[un]install` * Tue Dec 27 20:05:21 2016 +0100 Typo * Tue Dec 27 20:02:15 2016 +0100 Remove `ServiceName` from the config file * Tue Dec 27 19:38:03 2016 +0100 Add a plugin to forward queries to specific resolvers * Tue Dec 27 12:26:04 2016 +0100 Plug some memory leaks on error path * Tue Dec 27 10:20:19 2016 +0100 line->str for consistency * Tue Dec 27 09:31:38 2016 +0100 Mention that ServiceName is only used when installing the service. * Tue Dec 27 09:25:43 2016 +0100 Also leverage `LT_LIBPREFIX` * Tue Dec 27 09:16:36 2016 +0100 Use `LT_MODULE_EXT` to retrieve the module extension This renders the presence of .la files optional. * Mon Dec 26 22:05:58 2016 +0100 Correct the synopsis * Mon Dec 26 22:04:15 2016 +0100 Update the man page * Mon Dec 26 18:56:00 2016 +0100 Clarify * Mon Dec 26 18:52:20 2016 +0100 Add a port number in the ResolverAddress example * Mon Dec 26 18:47:37 2016 +0100 -Z should not imply -S * Mon Dec 26 18:45:40 2016 +0100 Allow ResolverAddress to override the CSV-provided address * Mon Dec 26 18:34:49 2016 +0100 Update the help message when no command-line options have been given * Mon Dec 26 10:40:16 2016 +0100 Move the blacklist generation script to a contrib folder * Mon Dec 26 10:38:52 2016 +0100 Toy might be misinterpreted * Sun Dec 25 23:22:34 2016 +0100 Add a sample script to generate lists of blacklisted domains * Sun Dec 25 11:42:51 2016 +0100 Shorten * Sun Dec 25 11:41:22 2016 +0100 Rephrase, remove double space * Sat Dec 24 19:11:30 2016 +0100 Final stop * Sat Dec 24 01:38:33 2016 +0100 Use the config file in the systemd service * Sat Dec 24 01:33:55 2016 +0100 Shorten even more * Sat Dec 24 01:32:05 2016 +0100 The disclaimer can be moved to the wiki, too * Sat Dec 24 01:30:44 2016 +0100 Remove a lot of the documentation. The Wiki is a better tool. * Sat Dec 24 00:27:31 2016 +0100 web sites -> websites * Fri Dec 23 23:17:28 2016 +0100 doc update * Fri Dec 23 23:15:43 2016 +0100 Doc update * Fri Dec 23 22:50:07 2016 +0100 Doc update * Fri Dec 23 22:41:05 2016 +0100 Use the config file in the .plist example * Fri Dec 23 22:26:31 2016 +0100 Typo * Fri Dec 23 21:49:20 2016 +0100 Update the minisign check example * Fri Dec 23 19:21:47 2016 +0300 Correct spelling (#521) * Fri Dec 23 11:50:37 2016 +0100 Update ChangeLog * Fri Dec 23 11:38:08 2016 +0100 SIGHUP now reloads the plugins Useful to rotate logs, and to update blacklists * Fri Dec 23 11:15:03 2016 +0100 Make plugin_support.h more readable * Thu Dec 22 16:47:16 2016 +0100 Fix `--ignore-timestamps` Reported by Toni Uhlig - Thanks! * Thu Dec 22 11:18:53 2016 +0100 Recommend checking the Daemonize option * Thu Dec 22 11:16:34 2016 +0100 Do not overwrite an existing dnscrypt-proxy.conf file * Thu Dec 22 11:09:14 2016 +0100 OSX -> MacOS and other minor changes to the documentation * Thu Dec 22 10:51:09 2016 +0100 Next will be 1.9.0 due to the major changes to the plugins * Thu Dec 22 10:48:06 2016 +0100 Just define some constants for clarity * Thu Dec 22 10:43:45 2016 +0100 empty -> is_empty * Thu Dec 22 10:38:45 2016 +0100 Lookup the frequent cache before the recent one * Thu Dec 22 10:28:27 2016 +0100 Add a second queue to the cache * Thu Dec 22 09:52:56 2016 +0100 up * Thu Dec 22 09:22:52 2016 +0100 Keep things together * Thu Dec 22 09:21:32 2016 +0100 Move code updating the cache to its own set of functions for clarity * Thu Dec 22 08:55:09 2016 +0100 Move the code that deallocates cache entries to its own function * Thu Dec 22 07:51:22 2016 +0100 Move a few definitions to example-cache.h * Thu Dec 22 07:44:11 2016 +0100 space->tab in Makefile.am * Thu Dec 22 03:02:00 2016 +0100 Do not change the TTL of OPT records Also properly copy the casing of the original client query * Thu Dec 22 02:36:12 2016 +0100 Ignore the TTL of OPT records And use the minimum TTL for empty zones. Probably not as great as looking at the SOA, very likely better than assuming the maximum TTL. * Wed Dec 21 18:14:12 2016 +0100 Only recommend one verification procedure * Wed Dec 21 18:12:37 2016 +0100 Bump the example version number * Thu Dec 22 01:58:33 2016 +0100 Add a simple DNS cache * Thu Dec 22 01:45:30 2016 +0100 Do not forget the file extension in plugins descriptions * Tue Dec 20 20:59:11 2016 +0100 Correct format string * Tue Dec 20 16:46:09 2016 +0100 Use lowercase hex digits * Tue Dec 20 16:45:03 2016 +0100 logging: add some common query types * Tue Dec 20 14:09:29 2016 +0100 libgcc_s_*.dll should not be required any more * Tue Dec 20 13:55:39 2016 +0100 Add -static-libgcc to mingw builds * Tue Dec 20 13:43:17 2016 +0100 Include for sockaddr_* definitions * Tue Dec 20 13:41:18 2016 +0100 Add /usr/${TARGET}/bin/libgcc_s_* to the distributed file * Tue Dec 20 13:08:25 2016 +0100 Keep only one port per service A way to list the set of ports every service can be reached at would be great, and we really need to find a clean way to support this in the future. * Tue Dec 20 11:33:51 2016 +0100 Add the ability to log queries using LTSV, too * Tue Dec 20 11:18:57 2016 +0100 Version bump even if we're not there yet * Tue Dec 20 11:15:15 2016 +0100 example-ldns-blocking: support the LTSV logging format * Tue Dec 20 10:34:18 2016 +0100 untab input * Tue Dec 20 10:29:09 2016 +0100 Major additions to the way [blocked] queries are logged * Tue Dec 20 09:25:11 2016 +0100 Print IPv6 addresses * Tue Dec 20 01:26:22 2016 +0100 Add the client IP address * Tue Dec 20 00:57:56 2016 +0100 `*.example.com` now matches example.com and x.example.com, not xexample.com * Mon Dec 19 11:54:25 2016 +0100 Complete rewrite of the blocking plugin to make it really fast This was intended to be nothing but a simple example of a plugin. However, this example turned out to be useful. And actually used. So, let's get serious about it and do better than a linear scan in order to match names and IPs. A critbit-like data structure is a perfect fit for that kind of list. So, split blacklists into 4 tries (5-bit variant of qp-tries): - ips - name prefixes - name suffixes - patterns that can be found anywhere Linear scans could have been kept for case #4, but this is not a common use case, and having a single data structure for everything reduces bloat. Suffix matching currently works the same way as prefix matching, with keys and strings being reversed first. However, from a user perspective, it makes sense to have `*.example.com` match `example.com` and `www.example.com` but not `abcexample.com`. This will be addressed next. Meanwhile, the plugin can now seamlessly handle very large blacklists. * Mon Dec 19 12:06:37 2016 +0100 Update ChangeLog for 1.8.1 * Mon Dec 19 11:31:08 2016 +0100 host_only() -> trim_comments() * Mon Dec 19 10:25:50 2016 +0100 Version bump * Mon Dec 19 10:10:49 2016 +0100 Android: downgrade the NDK to 19 when building for platform 16 May fix the `signal()` (inlined prior to version 21) symbol being undefined. * Mon Dec 19 08:51:29 2016 +0100 Fix off-by-one in the registry key Spotted by Christian Hermann * Sun Dec 18 15:17:27 2016 +0100 Document Control-C * Sat Dec 17 22:54:09 2016 +0100 Revert "dnscrypt.eu-nl-ipv6 has been down for a while" * Sat Dec 17 22:35:57 2016 +0100 sysconf -> dist_sysconf * Sat Dec 17 19:44:10 2016 +0100 Update ChangeLog * Sat Dec 17 19:43:43 2016 +0100 Do not require wine * Sat Dec 17 19:40:21 2016 +0100 Documentation improvements * Sat Dec 17 19:32:57 2016 +0100 Mention that the config file requires dnscrypt-proxy 1.8.0 * Sat Dec 17 19:32:24 2016 +0100 Improve the Windows documentation * Sat Dec 17 19:13:48 2016 +0100 Wndows doc/news update * Sat Dec 17 19:13:35 2016 +0100 Fix the vendor-specific include path * Sat Dec 17 19:06:37 2016 +0100 Update ChangeLog * Sat Dec 17 19:05:12 2016 +0100 Sync the Android build scripts with libsodium * Sat Dec 17 18:43:36 2016 +0100 Require iOS6 * Sat Dec 17 18:42:58 2016 +0100 Compat with minimal builds of libsodium * Sat Dec 17 18:41:45 2016 +0100 The CoreServices framework is probably not required any more * Sat Dec 17 18:41:14 2016 +0100 Do not recommend minimal libsodium builds any more, for xchacha20 * Sat Dec 17 18:21:34 2016 +0100 Sign * Sat Dec 17 18:20:48 2016 +0100 Added d0wn Italy's resolver (#511) Added d0wn Italy's resolver - from https://dns.d0wn.biz * Sat Dec 17 18:19:15 2016 +0100 Only keep vendor-neutral options in the configuration file * Sat Dec 17 18:15:59 2016 +0100 Update NEWS * Sat Dec 17 17:32:58 2016 +0100 The query logs is usually what people want, not the server log * Sat Dec 17 17:29:00 2016 +0100 More explicit default resolver * Sat Dec 17 17:25:27 2016 +0100 Inverted logic * Sat Dec 17 17:19:38 2016 +0100 lto still doesn't work reliably on mingw * Sat Dec 17 16:18:17 2016 +0100 Add a cross-compilation script for win32/win64 from Arch Linux * Sat Dec 17 13:46:01 2016 +0100 Bump example version * Sat Dec 17 13:49:19 2016 +0100 Deconstify * Sat Dec 17 12:46:30 2016 +0100 Windows: add a --install-with-config-file= command-line option * Sat Dec 17 11:39:01 2016 +0100 Avoid snprintf() in plugins * Sat Dec 17 00:08:45 2016 +0100 Update ChangeLog * Sat Dec 17 00:02:42 2016 +0100 The OpenDNS password can finally be loaded from a file The environment variable remains supported for backwards compatibility, but it is not documented any more. * Sat Dec 17 00:02:15 2016 +0100 Do not use two identification methods simultaneously * Fri Dec 16 23:41:16 2016 +0100 Looks like the password is just called "device" * Fri Dec 16 23:16:43 2016 +0100 Keep IgnoreTimeStamps commented in order to discourage its use * Fri Dec 16 23:01:28 2016 +0100 Remove down d0wn resolvers * Fri Dec 16 22:23:40 2016 +0100 Sort * Fri Dec 16 22:18:59 2016 +0100 Add a sample configuration file * Fri Dec 16 22:18:09 2016 +0100 Typo in the man page * Fri Dec 16 11:34:39 2016 +0100 Reuse the pure-ftpd config file parser * Fri Dec 16 11:31:46 2016 +0100 Configuration file (#454) * Add option -c to load configuration from a file. Add option -C to print the current configuration to stdout. Properly nul-terminate file_buf in options_read_file. * Document -c, -C and the configuration file. * Regenerate dnscrypt-proxy.8 from dnscrypt-proxy.8.markdown with ronn. * Wed Dec 14 12:02:57 2016 +0100 Update ChangeLog * Tue Dec 13 12:00:14 2016 +0100 New option `--service-name` to set the Windows service name * Sun Dec 11 20:56:23 2016 +0100 Version bump, update ChangeLog/NEWS * Sun Dec 11 20:33:26 2016 +0100 Use strdup() for resolver parameters supplied manually * Sun Dec 11 20:19:52 2016 +0100 Properly print the minor protocol version * Sun Dec 11 19:28:14 2016 +0100 Favor newer versions of the protocol * Sun Dec 11 01:31:45 2016 +0100 Keep a copy of the non-signed certificate data in bincerts * Sun Dec 11 01:02:41 2016 +0100 Add preliminary support for xchacha20poly1305 * Sun Dec 11 00:09:12 2016 +0100 Add polyfills for ancient libsodium versions * Sat Dec 10 23:10:58 2016 +0100 Update ChangeLog * Sat Dec 10 22:26:20 2016 +0100 More hacks for Debian * Sat Dec 10 21:32:22 2016 +0100 Stop checking for 6jack * Sat Dec 10 21:28:09 2016 +0100 Work around Debian shipping an antiquated version of libsodium * Sat Dec 10 21:13:00 2016 +0100 Do not use the confusing box API any more. This requires libsodium >= 1.0.2 * Sat Dec 10 19:57:14 2016 +0100 Add timestamps to syslogless logs * Sat Dec 10 19:52:17 2016 +0100 Add timestamps to log files * Sat Dec 10 19:27:26 2016 +0100 Document --logfile * Sat Dec 10 17:13:14 2016 +0100 Make the plugin descriptions more consistent * Sat Dec 10 14:50:47 2016 +0100 Add a --logfile option to the ldns-blocking plugin * Sat Dec 10 10:31:49 2016 +0100 Add ifreenet.online DNS record for its public key * Sat Dec 10 01:35:17 2016 +0100 sign * Sat Dec 10 04:04:22 2016 +0330 Update dnscrypt-resolvers.csv (#506) Added new public dnscrypt by ifreenet.online * Fri Dec 9 21:12:11 2016 +0100 cloudns is experiencing issues * Sun Dec 4 10:39:25 2016 +0100 Add DNSCryptClient * Mon Nov 28 23:35:28 2016 +0100 Temporarily remove d0wn-dk-ns1 * Wed Nov 23 22:11:05 2016 +0100 Remove dead resolvers * Sat Nov 19 09:39:49 2016 +0100 free() more things on exit * Sat Nov 19 09:21:48 2016 +0100 Install SIGINT & SIGTERM handlers * Sat Nov 19 09:20:37 2016 +0100 Regression from last commit * Sat Nov 19 09:18:38 2016 +0100 Fix inverted logic when shutting down listeners * Mon Nov 14 23:31:01 2016 +0100 Revert ipredator key change * Mon Nov 14 15:56:56 2016 +0100 Mention when servers use a long key rotation period * Mon Nov 14 15:20:00 2016 +0100 Sign Merge: d5c0ea8 cb19477 * Mon Nov 14 15:19:40 2016 +0100 Update dnscrypt-resolvers.csv (#497) update Ipredator.se Provider public key * Mon Nov 14 14:27:16 2016 +0100 Update dnscrypt-resolvers.csv update Ipredator.se Provider public key * Sun Nov 13 22:40:02 2016 +0100 d0wn and OpenNIC divorced * Sat Nov 12 23:52:34 2016 +0100 dnscrypt.eu-nl-ipv6 has been down for a while * Sat Nov 12 23:48:29 2016 +0100 New key for d0wn-lv-ns1 * Sat Nov 5 22:14:21 2016 +0100 Yet another key change, for d0wn-tz-ns1 * Sat Nov 5 21:37:15 2016 +0100 Sign * Sat Nov 5 21:36:05 2016 +0100 New key for d0wn-gr-ns1 * Tue Nov 1 23:08:18 2016 +0100 New resolver in New York: dyne.org * Tue Nov 1 23:04:10 2016 +0100 New key for d0wn-random-ns2 * Mon Oct 31 13:46:39 2016 +0100 New key for d0wn-de-ns1 * Thu Oct 27 15:09:57 2016 +0200 iPredator supports DNSSEC * Wed Oct 26 22:59:28 2016 +0200 Sign * Wed Oct 26 22:58:57 2016 +0200 Updated file with new D0wn's DNS server in Spain (#488) * Tue Oct 25 22:56:01 2016 +0200 0x00 0x02 is reserved for X25519-XChacha20Poly1305 * Mon Oct 24 10:13:11 2016 +0200 Update the list of resolvers * Tue Oct 25 10:04:08 2016 +0200 Check that the resolvers list doesn't contain duplicates * Sat Oct 22 02:49:12 2016 +0200 Remove temporarily d0wn resolvers * Mon Oct 17 18:06:13 2016 +0200 Add dnscrypt.org-fr URL * Thu Oct 13 22:57:27 2016 +0200 Try to use LibreSSL before OpenSSL * Thu Oct 13 22:43:11 2016 +0200 Add explit paths to OpenSSL for Homebrew * Thu Oct 13 21:35:24 2016 +0200 Make the example-ldns-blocking.c changes consistent with the rest of the code * Thu Oct 13 22:35:12 2016 +0300 Move apply_block_domains to the pre_filter event group (#485) * Tue Oct 11 15:24:08 2016 +0200 Welcome back, dnscrypt.eu-dk * Mon Oct 10 23:49:31 2016 +0200 Temporarily remove unresponsive resolvers * Mon Oct 10 23:41:40 2016 +0200 Sign * Mon Oct 10 23:35:45 2016 +0200 Avoid duplicate descriptions * Tue Oct 11 00:32:41 2016 +0300 update Adguard`s server list (#483) * Mon Oct 10 14:29:58 2016 +0200 Re-add update-binary to the git repository * Sun Oct 9 11:26:02 2016 +0200 Remove quite a few resolvers that are currently down * Fri Oct 7 23:23:13 2016 +0200 Sign * Fri Oct 7 22:22:31 2016 +0100 Remove 4ARMED server due to decommissioning (#482) * Mon Oct 3 07:25:31 2016 +0200 Remove ventricle.us cjdns & IPv6 addresses * Sun Oct 2 22:43:31 2016 +0200 adguard-family doesn't seem to work any more * Sun Oct 2 19:00:13 2016 +0200 Shorten the name of the ventricle servers * Sun Oct 2 12:27:26 2016 -0400 Added dnscrypt.ventricle.us (#478) * Sun Oct 2 09:54:24 2016 +0200 fvz-rec-gb-lon-03 is down * Sun Oct 2 09:52:52 2016 +0200 Sign * Sun Oct 2 02:39:18 2016 -0500 added dns-freedom (#476) * Tue Sep 27 01:07:12 2016 +0200 d0wn-lv-ns2 and d0wn-se-ns1 are down * Tue Sep 27 01:05:25 2016 +0200 Nits * Fri Sep 23 16:44:18 2016 +0200 Add Adguard * Fri Sep 23 16:26:21 2016 +0200 In the CSV files, ignore entries with an excessively large number of columns * Sat Sep 10 10:49:11 2016 +0200 Remove dead fvz resolvers * Mon Sep 5 12:30:48 2016 +0200 Revert dnscrypt.nu addition - The resolver itself doesn't seem to resolve * Mon Sep 5 12:22:10 2016 +0200 Sign * Mon Sep 5 12:21:50 2016 +0200 Add dnscrypt.nu * Tue Aug 30 09:06:08 2016 +0200 sign * Tue Aug 30 09:05:53 2016 +0200 Remove offline resolvers * Tue Aug 30 07:42:08 2016 +0100 update dnscrypt servers: dns.d0wn.biz (#455) * Thu Aug 25 15:24:22 2016 +0200 ldns-blocking: don't consider empty files as an error * Sat Aug 13 12:52:24 2016 +0200 fvz-rec-de-fra-01 and fvz-rec-ie-du-01 are not responsive * Sat Aug 13 12:48:51 2016 +0200 Android: distribute the update-binary signature, not binary Also distribute updater-script * Wed Aug 10 15:18:45 2016 +0200 libevent: Check for Mac OS X 10.4 kqueue bug properly * Mon Aug 1 00:52:13 2016 +0200 ./autogen.sh is not required with libsodium-stable * Sun Jul 31 12:47:19 2016 +0200 Do not create `libevent-modified/sample/Makefile` * Sun Jul 31 12:42:01 2016 +0200 Update ChangeLog * Sun Jul 31 12:19:15 2016 +0200 Builds for Win64 are now available * Sun Jul 31 11:04:32 2016 +0200 Remove LTO on Win32 Starting to think that the only platform where LTO works is MacOS * Sun Jul 31 10:07:02 2016 +0200 Silence the libeay grep * Sun Jul 31 09:25:08 2016 +0200 Add msys2-win64.sh to the package * Sun Jul 31 09:24:08 2016 +0200 Add a warning when using system libsodium * Sun Jul 31 09:19:14 2016 +0200 On win64: libgcc_s_dw2-1.dll -> libgcc_s_seh-1.dll * Sun Jul 31 01:57:59 2016 +0200 No LTO for the win64 version * Sun Jul 31 01:17:59 2016 +0200 Add a win64 build script * Sat Jul 30 23:10:30 2016 +0200 Check for grp.h - No struct passwd on win32 * Sat Jul 30 19:24:45 2016 +0200 Don't compile levent samples * Sat Jul 30 19:03:23 2016 +0200 Get ready for version 1.7.0 * Sat Jul 30 18:59:57 2016 +0200 Remove DNSCrypt tools for Linux. Unmaintained, not on Github. * Sat Jul 30 18:59:48 2016 +0200 Remove DNSCrypt Windows Service Manager * Sat Jul 30 18:48:52 2016 +0200 --enable-plugins is not required any more * Sat Jul 30 18:41:12 2016 +0200 Enable plugins by default * Sat Jul 30 18:11:45 2016 +0200 Add a Windows registry key for the log file * Sat Jul 30 18:03:22 2016 +0200 Add a `--ignore-timestamps` switch * Sat Jul 30 16:59:27 2016 +0200 Do not use the default resolvers any more to retrieve the certs Besides Cisco, nobody's manually creating the certificates any more. * Sat Jul 30 16:57:26 2016 +0200 Fix off-by-one when printing the day * Sat Jul 30 15:45:00 2016 +0200 Certs retrieval: use TCP if a response over UDP has the TC bit * Sat Jul 30 01:13:25 2016 +0200 Sign * Sat Jul 30 01:12:44 2016 +0200 Remove d0wn-de-ns1-ipv6 (unreachable) * Sat Jul 30 01:07:21 2016 +0200 More Resolvers Online checked certificate received (#445) * More Resolvers Online checked certificate received ./dnscrypt-proxy.exe --test=1 -R $1 [INFO] - [fvz-rec-hk-ztw-01] does not support DNS Security Extensions [INFO] + Namecoin domains can be resolved [INFO] + Provider supposedly doesn't keep logs [NOTICE] Starting dnscrypt-proxy 1.6.1 [INFO] Generating a new session key pair [INFO] Done [INFO] Server certificate #808464433 received [INFO] This certificate is valid [INFO] Server key fingerprint is 9E71:4780:7FEE:D8FF:CDEC:A1F2:948F:DC04:1ACB:0FF3:7432:11DC:B0EB:4785:B19E:0161 [INFO] - [fvz-rec-nl-ams-01] does not support DNS Security Extensions [INFO] + Namecoin domains can be resolved [INFO] + Provider supposedly doesn't keep logs [NOTICE] Starting dnscrypt-proxy 1.6.1 [INFO] Generating a new session key pair [INFO] Done [INFO] Server certificate #808464433 received [INFO] This certificate is valid [INFO] Server key fingerprint is 8F15:3E6F:22FE:0779:8442:2EA1:A7C6:D499:30DE:8322:1EC6:4691:691B:BD1B:9BD2:F749 [INFO] - [fvz-rec-no-osl-01] does not support DNS Security Extensions [INFO] + Namecoin domains can be resolved [INFO] + Provider supposedly doesn't keep logs [NOTICE] Starting dnscrypt-proxy 1.6.1 [INFO] Generating a new session key pair [INFO] Done [INFO] Server certificate #808464433 received [INFO] This certificate is valid [INFO] Server key fingerprint is 84CA:096E:6658:1578:2AA8:89AD:6882:4EFB:CC9D:B07D:4A68:0DE3:15A7:C3C8:0DCB:0E00 [INFO] - [fvz-rec-ro-buh-01] does not support DNS Security Extensions [INFO] + Namecoin domains can be resolved [INFO] + Provider supposedly doesn't keep logs [NOTICE] Starting dnscrypt-proxy 1.6.1 [INFO] Generating a new session key pair [INFO] Done [INFO] Server certificate #808464433 received [INFO] This certificate is valid [INFO] Server key fingerprint is E6C2:2A53:2DC3:E604:16CF:0AD0:5583:2BCE:6704:617E:7643:3A15:7D40:A2CA:2CDD:0B38 * opennic-fvz-rec-de-dus-01 ./dnscrypt-proxy.exe --test=1 -R fvz-rec-de-dus-01 [INFO] - [fvz-rec-de-dus-01] does not support DNS Security Extensions [INFO] + Namecoin domains can be resolved [INFO] + Provider supposedly doesn't keep logs [NOTICE] Starting dnscrypt-proxy 1.6.1 [INFO] Generating a new session key pair [INFO] Done [INFO] Server certificate #808464433 received [INFO] This certificate is valid [INFO] Server key fingerprint is 9EF2:3C23:5418:2F42:7760:60F1:5243:7A19:42E7:EAFB:D03C:7C4D:A1E3:9F17:6207:D65E * add d0wn-de-ns1-ipv6 the IPv6 one does work! (for now!) > ./dnscrypt-proxy.exe --test=1 --provider-name=2.dnscrypt-cert.de.d0wn.biz -r [2001:1608:10:195:3:dead:beef:cafe]:443 --provider-key=D4A8:6FB5:AA0C:2B6B:8C13:8C29:7F69:F9C8:29C8:E157:F279:6FC7:7366:290F:2A80:0AD2 `[NOTICE] Starting dnscrypt-proxy 1.6.1 [INFO] Generating a new session key pair [INFO] Done [ERROR] Unable to retrieve server certificates [INFO] Refetching server certificates [INFO] Server certificate #808464433 received [INFO] This certificate is valid [INFO] Server key fingerprint is 5B8C:68CA:BE7B:8BB6:5D5F:ED0F:2210:A729:0CB0:C9BB:2AF1:78C7:0C1F:0F88:2CC9:5678` * Update dnscrypt-resolvers.csv * [fvz-rec-fr-sxb-01] [INFO] - [fvz-rec-fr-sxb-01] does not support DNS Security Extensions [INFO] + Namecoin domains can be resolved [INFO] + Provider supposedly doesn't keep logs [NOTICE] Starting dnscrypt-proxy 1.6.1 [INFO] Generating a new session key pair [INFO] Done [INFO] Server certificate #808464433 received [INFO] This certificate is valid [INFO] Server key fingerprint is 9560:97AF:9B71:2596:CDDB:7246:4722:076F:4097:CDA8:5F41:8664:338E:8646:DD3D:7738 * Thu Jul 28 19:56:05 2016 +0200 Sign * Thu Jul 28 19:55:38 2016 +0200 Remove d0wn-de-ns1-* The one on port 80 is a duplicate, the IPv6 one doesn't work. Merge: c7947fd a5c1756 * Thu Jul 28 19:51:56 2016 +0200 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: https://dns.d0wn.biz/ Merge: ae693fb 7ef27e0 * Thu Jul 28 19:51:52 2016 +0200 Merge pull request #443 from Opensourcecommunitydevelopment/patch-1 https://dns.d0wn.biz/ * Thu Jul 28 19:50:51 2016 +0200 IPv6 addresses require a port Merge: 51dff5e 3c203bb * Thu Jul 28 19:49:20 2016 +0200 Merge pull request #444 from Opensourcecommunitydevelopment/patch-2 new fvz-rec-de-muc-01 IPv4&IPv6 Entrys corrected * Thu Jul 28 16:37:02 2016 +0200 new fvz-rec-de-muc-01 IPv4&IPv6 Entrys http://dnsrec.meo.ws/#fvz-rec-de-muc-01 fvz-rec-de-muc-01 in Munich, Germany DNSCrypt-Name: 2.dnscrypt-cert.fvz-rec-de-muc-01.dnsrec.meo.ws DNSCrypt-Key: C392:2B83:8EB3:884B:B99B:70BD:B90A:C204:37A4:797A:35F4:3600:7641:94E3:F995:444A IPv4: 185.90.62.45 IPv6: 2a05:dfc0:1ee3:dee:ba::1 * Thu Jul 28 16:16:36 2016 +0200 https://dns.d0wn.biz/ DNS-Server: ns1.de.dns.d0wn.biz IPv6: 2001:1608:10:195:3:dead:beef:cafe Location: Germany Provider-Key: D4A8:6FB5:AA0C:2B6B:8C13:8C29:7F69:F9C8:29C8:E157:F279:6FC7:7366:290F:2A80:0AD2 Provider-Name: 2.dnscrypt-cert.de.d0wn.biz Ports: 54 80 443 1053 5353 27015 Key valid until: 2016-10-31 Pubkey TXT Record: pubkey.de.dnscrypt.d0wn.biz * Wed Jul 27 21:45:25 2016 +0200 Valid certs with the highest serial# should always be preferred * Mon Jul 25 11:19:57 2016 +0200 Temporarily remove fvz-rec-nz-akl-01 * Sun Jul 17 18:08:30 2016 +0200 libevent version bump * Sun Jul 17 18:03:22 2016 +0200 libevent: fix overflow check in expand_singlechain() * Sun Jul 17 18:01:23 2016 +0200 Add an assertion to remove confusion * Fri Jul 15 22:38:21 2016 +0200 resolv-{east,west} have been down for too long * Thu Jul 7 18:54:59 2016 +0200 sign Merge: 4588404 68c0444 * Thu Jul 7 18:54:43 2016 +0200 Merge pull request #433 from xxdesmus/master removing SpdySync * Thu Jul 7 09:50:45 2016 -0700 removing SpdySync * Mon Jun 27 10:35:39 2016 +0200 Provide a systemd service that doesn't work by default :) * Mon Jun 27 10:14:14 2016 +0200 Regen man page * Mon Jun 27 10:13:13 2016 +0200 Clarify why ephemeral keys are not enabled by default * Thu Jun 23 17:20:30 2016 +0200 Don't even try to quote a path with a quote * Wed Jun 22 12:07:14 2016 +0200 d0wn-ro-ns1 and ovpnto-se are down Merge: 3673840 fcbd7e6 * Mon Jun 20 08:52:54 2016 +0200 Merge pull request #426 from taozhijiang/master add the gitignore for additional m4 and libevent * Mon Jun 20 08:49:36 2016 +0800 add the gitignore for additional m4 and libevent The following entries should be added to .gitignore file: m4/ltargz.m4 src/libevent-modified/libevent_core.pc src/libevent-modified/libevent_extra.pc * Tue Jun 14 15:10:50 2016 +0200 Include for initgroups() * Thu Jun 9 10:38:15 2016 +0200 Print certificates serial number as a string if applicable * Mon Jun 6 19:00:06 2016 +0200 Call initgroups(3) if available * Sun Jun 5 19:16:21 2016 +0200 Sign * Sun Jun 5 19:16:09 2016 +0200 Revert "fvz anycast addresses are down" * Fri Jun 3 21:00:20 2016 +0200 Sign * Fri Jun 3 21:00:06 2016 +0200 ovpnto-ro is down * Fri Jun 3 20:59:25 2016 +0200 fvz-rec-no-osl-01 and fvz-rec-us-mia-01 are down * Fri Jun 3 20:59:03 2016 +0200 fvz anycast addresses are down * Fri Jun 3 20:55:48 2016 +0200 cloudns-can is down * Fri Jun 3 20:55:17 2016 +0200 OpenNIC Resolver Singapore 01 is in Singapore, not in Germany * Fri Jun 3 20:54:41 2016 +0200 Add explicit port number to IPv6 addresses * Sat May 28 19:44:17 2016 -0700 Sign Merge: 187a480 04ca5b5 * Sat May 28 19:31:23 2016 -0700 Merge pull request #419 from Fusl/patch-1 Adding fault-tolerant OpenNIC anycast resolver addresses * Sun May 29 02:59:03 2016 +0200 Adding fault-tolerant OpenNIC anycast resolver addresses Since anycast networks tend to not have any central location, I put "Earth" in the location field. Feel free to change it to anything else if required. * Wed May 25 23:24:06 2016 -0700 Imoprt libevent_{core,extra}.pc.in * Wed May 25 22:55:13 2016 -0700 libevent2: add tests for evbuffer_add() breakage on empty last chain * Wed May 25 22:53:51 2016 -0700 libevent: add tests for evbuffer_add() breakage on empty last chain * Tue May 24 12:44:59 2016 -0700 Update d0wn resolvers, remove redundant port numbers * Mon May 23 09:11:39 2016 -0700 Reorder options and ensure that order is the same in man and --help * Sun May 22 19:09:39 2016 -0700 Correctly handle the syslog prefix The context may not be available when the log function is called. * Sun May 22 19:02:12 2016 -0700 Revert "Revert "Add --syslog-prefix (-Z) option"" * Sun May 22 16:23:12 2016 -0700 Revert "Add --syslog-prefix (-Z) option" * Sun May 22 16:14:19 2016 -0700 evdns_set_option() -> evdns_base_set_option() * Fri May 20 18:22:49 2016 -0700 Keep var declarations of the same type together * Fri May 20 18:22:19 2016 -0700 Proper quotes Merge: 324a75f 5b14bb1 * Fri May 20 18:21:29 2016 -0700 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Update dnscrypt-resolvers.csv update origin for Spdysync Add --syslog-prefix (-Z) option Merge: 7211a59 92d0ef3 * Fri May 20 18:21:09 2016 -0700 Merge pull request #409 from konsolebox/add_syslog_prefix_option Add --syslog-prefix (-Z) option * Fri May 20 18:20:51 2016 -0700 Sign Merge: d9b530d 43075f3 * Fri May 20 18:20:17 2016 -0700 Merge pull request #411 from xxdesmus/master updating origin IP for spdysync * Fri May 20 17:22:20 2016 -0700 Update dnscrypt-resolvers.csv * Fri May 20 17:19:47 2016 -0700 update origin for Spdysync * Fri May 20 15:39:35 2016 -0700 Revert "canhazip[.]com -> canihazip[.]com" * Thu May 19 16:47:34 2016 -0700 Sign * Thu May 19 16:47:05 2016 -0700 canhazip[.]com -> canihazip[.]com * Thu May 19 16:26:18 2016 -0700 Re-add spdysync with a few tweaks * Thu May 19 13:09:56 2016 +0200 Revert "Revert Spdysync addition" * Thu May 19 06:45:12 2016 +0200 Revert Spdysync addition Merge: a9294cb bd004ef * Thu May 19 06:44:20 2016 +0200 Merge pull request #410 from xxdesmus/master adding spdysync.com as a resolver Merge: a9294cb d4d71ae * Wed May 18 21:35:55 2016 -0700 Merge pull request #1 from xxdesmus/xxdesmus-addresolver Update dnscrypt-resolvers.csv * Wed May 18 21:33:38 2016 -0700 Update dnscrypt-resolvers.csv adding SpdySync resolver. * Wed May 18 18:06:06 2016 +0800 Add --syslog-prefix (-Z) option * Wed May 18 00:25:53 2016 +0200 Sign * Wed May 18 00:25:35 2016 +0200 - CRLF * Wed May 18 00:24:53 2016 +0200 Revert "Remove resolv-west for now" * Tue May 17 23:55:10 2016 +0200 Sign * Tue May 17 23:54:36 2016 +0200 Remove resolv-west for now Merge: 14f0aa7 bfa4381 * Tue May 17 23:50:32 2016 +0200 Merge pull request #407 from neilwillgettoit/master Additional resolvers * Tue May 17 18:38:45 2016 +0200 Sign Merge: db9c05b 4ecd1a2 * Tue May 17 18:37:09 2016 +0200 Merge pull request #408 from intchloe/patch-1 Added OVPN public server * Tue May 17 16:41:57 2016 +0200 Added OVPN public server * Mon May 16 12:58:54 2016 -0500 correction to dnssec flag dnssec is not on right now. * Mon May 16 11:46:03 2016 -0500 adding resolv.site east and west to list of resolvers * Mon May 16 11:41:40 2016 -0500 adding resolv.site east and west to list of resolvers * Tue May 10 23:36:28 2016 +0200 Recommend a short cert TTL when clients use static key pairs * Tue May 10 23:33:47 2016 +0200 Format * Tue May 10 16:40:24 2016 +0200 Reformat * Tue May 3 14:04:59 2016 +0200 Remove offline resolvers * Mon May 2 06:05:42 2016 +0200 Script for Android should add to iptable tables when enabling the proxy * Thu Apr 21 11:36:39 2016 +0200 Don't advertise namecoin support. It's not the case any more. * Thu Apr 21 00:26:43 2016 +0200 Verified list of resolvers actually supporting .bit domains * Wed Apr 20 19:53:56 2016 +0200 d0wn-hk-ns1 has been down for a while * Sun Apr 17 10:18:21 2016 +0200 Mention dnsdist * Fri Apr 15 09:17:10 2016 +0200 d0wn-de-ns1 is down * Wed Apr 13 09:07:29 2016 +0200 msys2 supports LTO * Mon Apr 11 23:45:15 2016 +0200 Allow for SSE instructions * Wed Apr 6 09:11:22 2016 +0200 libevent: unlock lev on error in listener_read_cb() * Mon Apr 4 09:59:25 2016 +0200 Add d0wn-hk-ns1 * Sun Apr 3 20:17:30 2016 +0200 Remove offline resolvers * Tue Mar 29 22:48:33 2016 +0200 Missing \n * Tue Mar 29 18:01:14 2016 +0200 + Yandex Merge: 7dc203f c764e66 * Sat Mar 26 21:19:17 2016 +0100 Merge pull request #390 from TheDoctorsLife/patch-1 Fix Broken Link in README * Sat Mar 26 16:18:28 2016 -0400 Fix Broken Link The DNSCrypt Windows Service Manager GUI link is broken, relink to github project. * Fri Mar 25 10:30:45 2016 +0100 evdns: fix searching empty hostnames Bug report by Guido Vranken via the Tor bug bounty program * Thu Mar 24 12:46:49 2016 +0100 evdns: avoid double-free in evdns_base_free() for probing requests * Thu Mar 24 12:44:25 2016 +0100 Confusing indentation * Fri Mar 18 07:35:56 2016 +0100 Typo * Thu Mar 17 22:19:38 2016 +0100 cd-md is down * Tue Mar 15 19:40:26 2016 +0100 sign Merge: 3df3e76 0e9af27 * Tue Mar 15 19:39:39 2016 +0100 Merge pull request #382 from tealcavalon/patch-3 Updating all cryptostorm.is * Tue Mar 15 19:39:02 2016 +0100 Updating all cryptostorm.is * Sat Mar 12 16:20:13 2016 +0100 sign Merge: 1eb3837 d70ae2a * Sat Mar 12 16:19:56 2016 +0100 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Update dnscrypt-resolvers.csv Update dnscrypt-resolvers.csv Update dnscrypt-resolvers.csv Update dnscrypt-resolvers.csv Update dnscrypt-resolvers.csv Update dnscrypt-resolvers.csv Update dnscrypt-resolvers.csv * Sat Mar 12 16:19:43 2016 +0100 Remove d0wn-cr-ns1 and sign Merge: 58b08ed c42148d * Sat Mar 12 16:17:53 2016 +0100 Merge pull request #377 from brian5hea/master Update details for shea-us-noads[-ipv6] * Fri Mar 11 01:46:27 2016 +0100 When using TCP, try the default resolvers as a last resort Also increase the number of retries in that case * Thu Mar 10 08:41:38 2016 +0100 Remove offline resolvers * Tue Mar 8 22:55:47 2016 -0500 Update dnscrypt-resolvers.csv * Tue Mar 8 09:40:33 2016 -0500 Update dnscrypt-resolvers.csv * Tue Mar 8 09:36:23 2016 -0500 Update dnscrypt-resolvers.csv * Tue Mar 8 09:23:42 2016 -0500 Update dnscrypt-resolvers.csv * Mon Mar 7 21:15:28 2016 -0500 Update dnscrypt-resolvers.csv * Mon Mar 7 21:08:25 2016 -0500 Update dnscrypt-resolvers.csv * Mon Mar 7 21:02:18 2016 -0500 Update dnscrypt-resolvers.csv Merge: 7f295a2 b780d0b * Mon Mar 7 20:13:11 2016 -0500 Merge pull request #1 from jedisct1/master Sync * Fri Mar 4 12:18:59 2016 +0100 $ * Fri Mar 4 11:49:48 2016 +0100 Mention that releases are signed with the same key as CSVs * Wed Mar 2 19:50:58 2016 +0100 d0wn-al-ns1 is down * Tue Mar 1 21:33:40 2016 +0100 Remove temporarily down servers * Tue Mar 1 21:26:55 2016 +0100 Recommend drill -aD * Tue Mar 1 21:26:08 2016 +0100 while true -> while : Merge: a4a8280 17d2e4f * Tue Mar 1 21:23:47 2016 +0100 Merge pull request #375 from licaon-kter/patch-1 Retry getting a cert if no connection is available * Tue Mar 1 21:56:00 2016 +0200 Retry getting a cert if no connection is available * Thu Feb 25 11:15:58 2016 +0100 LAX FVZ resolvers are unresponsive * Wed Feb 24 08:39:36 2016 +0100 quotes * Wed Feb 24 08:34:50 2016 +0100 Mention that dnscrypt-proxy is only a client * Wed Feb 24 08:31:52 2016 +0100 gcc producing broken code is an old issue from the pre-libsodium days * Wed Feb 24 08:31:13 2016 +0100 Link Simple DNSCrypt * Wed Feb 24 08:14:32 2016 +0100 Windows: quote `self_path` when installing the Windows service Prodded by @bitbeans * Mon Feb 22 15:54:17 2016 +0100 name_component => label * Mon Feb 22 15:53:23 2016 +0100 Correctly parse compressed names * Sun Feb 21 08:47:14 2016 +0100 Sign Merge: 7d540ca 7f295a2 * Sun Feb 21 08:46:18 2016 +0100 Merge pull request #369 from brian5hea/master Add shea-us-noads-ip6 * Sat Feb 20 21:06:42 2016 -0500 Add shea-us-noads-ip6 * Sat Feb 20 19:48:56 2016 +0100 Two d0wn servers that appear to be d0wn * Sat Feb 20 13:54:04 2016 +0100 Add a sample script to update the resolvers list * Sat Feb 20 12:28:55 2016 +0100 Pasto * Fri Feb 19 07:29:50 2016 +0100 sign * Wed Feb 17 21:45:07 2016 +0100 Sign Merge: 52f112e 3862b07 * Wed Feb 17 21:33:00 2016 +0100 Merge pull request #367 from tealcavalon/patch-2 Updating all https://dns.d0wn.biz/ * Wed Feb 17 17:05:54 2016 +0100 Updating all https://dns.d0wn.biz/ + Added new servers + Removed old servers + Changed providers keys and names + Full list of d0wn servers now updated! * Wed Feb 17 16:31:07 2016 +0100 Updating all https://dns.d0wn.biz/ + Several changes in provider key/name + Added new random server * Wed Feb 17 10:26:05 2016 +0100 V2 * Tue Feb 16 16:57:25 2016 +0100 sign * Tue Feb 16 16:57:14 2016 +0100 Sort Merge: aa98a4f 2cf490c * Tue Feb 16 16:56:32 2016 +0100 Merge pull request #365 from mausspb/patch-1 Update dnscrypt-resolvers.csv * Tue Feb 16 18:44:09 2016 +0300 Update dnscrypt-resolvers.csv Update keys for the last news from here https://dns.d0wn.biz/ > News: - ns1.za.dns.d0wn.biz will be removed on 03-01-2016 - ns1.mx.dns.d0wn.biz will be removed on 03-01-2016 - ns1.es.dns.d0wn.biz will be removed on 03-01-2016 >- There are many servers with old keys which expired at 02-12-2016. This will be fixed today. Please take a look here for the new keys. Each server with the key "9970:E22D:7F6C:967F:8AED:CEEB:FBC1:94B9:AF54:376E:2BF7:39F1:F466:CBC9:AFDB:2A62" won't work anymore! >- ns2.fr.dns.d0wn.biz got a new Provider-Key and Provider-Name! - ns1.sg.dns.d0wn.biz got a new Provider-Key and Provider-Name! - ns1.nl.dns.d0wn.biz got a new Provider-Key and Provider-Name! - ns2.nl.dns.d0wn.biz got a new Provider-Key and Provider-Name! - ns1.ru.dns.d0wn.biz got a new Provider-Key and Provider-Name! - ns1.ua.dns.d0wn.biz got a new Provider-Key and Provider-Name! - ns1.bg.dns.d0wn.biz got a new Provider-Key and Provider-Name! - ns1.random.dns.d0wn.biz got a new Provider-Key and Provider-Name! * Mon Feb 15 10:59:00 2016 +0100 Make the Android update binary executable * Mon Feb 15 10:57:43 2016 +0100 Remove updater-script from the tarball * Mon Feb 15 10:53:24 2016 +0100 Load update-binary from Github, check its signature * Fri Feb 12 08:29:08 2016 +0100 sign Merge: a44a4c7 4a4c4c9 * Fri Feb 12 08:28:16 2016 +0100 Merge pull request #361 from dacarrs/patch-1 Added OpenNIC Resolver Spain 01 * Fri Feb 12 06:45:28 2016 +0100 Added OpenNIC Resolver Spain 01 Added by d0wn-es-ns1 provided by Martin 'd0wn' Albus. Merge: 41c6d8b c7eb66b * Wed Feb 10 20:23:54 2016 +0100 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Update README.markdown * Wed Feb 10 20:23:41 2016 +0100 Remove offline resolvers Merge: bdb26cf 46df5e7 * Tue Feb 9 23:28:35 2016 +0100 Merge pull request #359 from jakezeal/master Update README.markdown * Tue Feb 9 17:11:22 2016 -0500 Update README.markdown * Sun Feb 7 09:39:15 2016 +0100 Sign after shea-us-noads addition Merge: a193c6f 297ced2 * Sun Feb 7 09:35:06 2016 +0100 Merge pull request #358 from brian5hea/master Add new resolver * Sun Feb 7 02:03:29 2016 -0500 Add new resolver * Wed Feb 3 23:23:59 2016 +0100 Repair edns0 support * Wed Feb 3 14:22:15 2016 +0100 Link libsodium-18.dll on msys2 * Wed Feb 3 12:13:56 2016 +0100 Update ChangeLog * Wed Feb 3 12:13:42 2016 +0100 Regen man pages * Wed Feb 3 12:03:21 2016 +0100 https everywhere * Wed Feb 3 11:57:07 2016 +0100 Update libevent ChangeLog, especially for CVE-2014-6272 * Wed Feb 3 11:50:42 2016 +0100 Version bump (not released yet) * Wed Feb 3 11:46:38 2016 +0100 (bad) NEWS * Wed Feb 3 00:51:01 2016 +0100 Set packet pointer to NULL before calling ldns_wire2pkt() Not necessary, but if the return code is not properly checked, at least all we will dereference later is a NULL pointer. * Wed Feb 3 00:47:16 2016 +0100 The max query size for filters should be at last the original size * Tue Feb 2 17:17:00 2016 +0100 Fix long-standing vulnerability in the opendns plugins * Tue Feb 2 17:16:30 2016 +0100 Check for wire2pkt return code instead of the parsed packet pointer * Tue Feb 2 16:42:44 2016 +0100 Don't count the last byte of a name twice * Tue Feb 2 15:26:19 2016 +0100 Stop parsing labels after 255 bytes * Sun Jan 31 14:11:58 2016 +0100 dnscrypt.me is down :( * Sat Jan 30 01:11:38 2016 +0100 "looks valid" -> "is valid" to remove confusion. This message is displayed only when the signature is correct for the given certificate. * Fri Jan 29 14:21:48 2016 +0100 Change Curve25519 references to X25519. Provision for Chacha20Poly1305 support as replacement for Salsa20Poly1305. * Wed Jan 20 09:51:44 2016 +0100 Remove old servers reintroduced by mistake * Wed Jan 20 09:30:36 2016 +0100 Sign Merge: 795c02e c68cd82 * Wed Jan 20 09:30:10 2016 +0100 Merge pull request #351 from fechterjm/patch-1 Update dnscrypt-resolvers.csv * Tue Jan 19 23:39:24 2016 -0500 Update dnscrypt-resolvers.csv Updated full name to be a bit more descriptive. * Tue Jan 19 02:27:39 2016 +0100 Use cvslint if present * Tue Jan 19 02:24:27 2016 +0100 (re)add missing resolvers + some fixes by @gavinjs * Tue Jan 19 01:09:31 2016 +0100 Sort * Mon Jan 18 22:38:06 2016 +0100 Absence of Namecoin support doesn't really matter much in practice. Namecoin was a great idea, but adoption was really poor. * Mon Jan 18 22:34:38 2016 +0100 Sign Merge: c7742cd 153bc45 * Mon Jan 18 22:28:49 2016 +0100 Merge pull request #349 from fechterjm/patch-1 Update dnscrypt-resolvers.csv * Mon Jan 18 16:24:01 2016 -0500 Update dnscrypt-resolvers.csv Added my server (DNSCrypt.is) * Fri Jan 15 09:39:34 2016 +0100 Temporarily remove offline resolvers * Wed Jan 6 14:18:44 2016 +0100 Change the message and priority when receiving invalid packets People tend to freak out when they see "corrupted" * Tue Jan 5 22:49:11 2016 +0100 Add a few things to the systemd service * Sat Jan 2 09:04:32 2016 +0100 2016 * Thu Dec 31 19:32:48 2015 +0100 Sign Merge: 3ca1006 91dfdf1 * Thu Dec 31 19:27:22 2015 +0100 Merge pull request #341 from dnscryptme/master Added coordinates of dnscrypt.me * Thu Dec 31 18:29:39 2015 +0100 Added coordinates of dnscrypt.me Merge: 5873a85 3ca1006 * Thu Dec 31 18:24:19 2015 +0100 Merge remote-tracking branch 'jedisct1/master' * Thu Dec 31 10:20:34 2015 +0100 Remove offline resolvers Merge: 86363a3 3cfe943 * Tue Dec 29 18:55:53 2015 +0100 Merge pull request #340 from rgacogne/fix-signature-size Fix the certificate signature size and clarify cert records size * Tue Dec 29 18:53:15 2015 +0100 Fix the certificate signature size and clarify cert records size The size of an Ed25519 signature, as used by the current DNSCrypt version, is 64 bytes, not 32 bits. It was not clear to me after the first reading that the 116 bytes size referred to the size of the signature plus the signed part, therefore excluding the cert-magic, es-version and protocol-minor-version. Of course it makes sense, but I think it can't hurt to write it down. * Sun Dec 27 21:02:27 2015 +0100 Try --high-entropy-va on MinGW Merge: be6fe91 f6ad3d4 * Sun Dec 27 11:50:37 2015 +0100 Merge pull request #7 from jedisct1/master Update * Tue Dec 22 14:09:37 2015 +0100 Mention dnsdist * Thu Dec 17 01:06:05 2015 +0100 Fix DNSCRYPT_RESOLVER_MAGIC in the specification Spotted by @rgacogne during its implementation for dnsdist. * Wed Dec 16 00:57:44 2015 +0100 Only include the location in the location field, not the ISP * Sun Dec 13 17:35:53 2015 +0100 Remove resolvers that are temporarily off At least dnsmachine.net will hopefully come back soon * Sat Dec 12 13:43:51 2015 +0100 Fix dnscrypt.me provider name * Sat Dec 12 13:18:18 2015 +0100 Sign Merge: 98749ea be6fe91 * Sat Dec 12 13:17:56 2015 +0100 Merge pull request #329 from dnscryptme/master de-ns1.de renamed to dnscrypt.me * Sat Dec 12 13:11:46 2015 +0100 de-ns1.de renamed to dnscrypt.me Merge: 1404bd6 98749ea * Sat Dec 12 13:10:27 2015 +0100 Merge pull request #6 from jedisct1/master Update * Thu Dec 10 18:07:53 2015 +0100 Don't try to stop listening to events that weren't set * Thu Dec 10 10:28:24 2015 +0100 sign Merge: 7a3cf43 1404bd6 * Thu Dec 10 10:28:02 2015 +0100 Merge pull request #328 from Makedu/master Added pubkey TXT record for de-ns1.de * Thu Dec 10 10:25:10 2015 +0100 Added pubkey TXT record for de-ns1.de Merge: dd0bff8 7a3cf43 * Thu Dec 10 10:22:48 2015 +0100 Merge pull request #5 from jedisct1/master Update * Wed Dec 9 16:24:31 2015 +0100 Sign Merge: d7d13f3 fd95e0a * Wed Dec 9 16:24:21 2015 +0100 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: New PublicKey for: dnsmachine.net-de * Wed Dec 9 16:24:11 2015 +0100 sign Merge: b86c5b5 86f6059 * Wed Dec 9 16:23:09 2015 +0100 Merge pull request #326 from bitbeans/master New PublicKey for: dnsmachine.net-de * Wed Dec 9 16:13:01 2015 +0100 New PublicKey for: dnsmachine.net-de - Sorry!! * Wed Dec 9 12:07:53 2015 +0100 Oh, Travis, Y U NO LIKE libldns? * Wed Dec 9 11:55:56 2015 +0100 Travis doesn't seem to have libldns-dev any more * Wed Dec 9 11:42:04 2015 +0100 Sign Merge: 08b4938 dd0bff8 * Wed Dec 9 11:41:41 2015 +0100 Merge pull request #325 from Makedu/master Updated URL of de-ns1.de * Wed Dec 9 10:50:57 2015 +0100 Updated URL of de-ns1.de Merge: 8ceeb2c 08b4938 * Wed Dec 9 10:48:47 2015 +0100 Merge pull request #4 from jedisct1/master Update * Sat Dec 5 18:24:52 2015 +0100 Revert "Use pledge(2) if available" * Thu Dec 3 10:20:34 2015 +0100 sign Merge: 435364c 41173ba * Thu Dec 3 10:20:21 2015 +0100 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Server germandnscrypt-01.de removed * Thu Dec 3 10:20:16 2015 +0100 sign Merge: 3d27b10 8ceeb2c * Thu Dec 3 10:19:42 2015 +0100 Merge pull request #323 from Makedu/master Server germandnscrypt-01.de removed * Thu Dec 3 08:53:40 2015 +0100 Server germandnscrypt-01.de removed The server germandnscrypt-01.de is replaced by de-ns1.de de-ns1.de has less RAM (4GB instead of 6), but more cores (4x Xeon E5-2620v2 instead of 2x Xeon E5-2620v3) - Unbound is running with 3 threads now. Please note: even if germandnscrypt-01.de is removed from the list, it is still accessible for some days. Merge: fc5958f 3d27b10 * Thu Dec 3 08:44:06 2015 +0100 Merge pull request #3 from jedisct1/master Update * Thu Dec 3 07:48:35 2015 +0100 sign Merge: 9e99855 fc5958f * Thu Dec 3 07:47:33 2015 +0100 Merge pull request #322 from Makedu/master Added new server de-ns1.de * Wed Dec 2 22:11:35 2015 +0100 Added new server de-ns1.de Merge: 27c2e1b 9e99855 * Wed Dec 2 22:09:55 2015 +0100 Merge pull request #2 from jedisct1/master Update * Wed Dec 2 00:41:34 2015 +0100 4armed is back! * Sat Nov 28 11:42:38 2015 +0100 Remove temporarily unavailable servers * Sat Nov 28 11:40:59 2015 +0100 Update the configuration settings for d0wn's randomizer * Tue Nov 24 19:47:47 2015 +0100 Sign Merge: ae0bd91 27c2e1b * Tue Nov 24 19:47:01 2015 +0100 Merge pull request #318 from Makedu/master added URL for germandnscrypt-01.de * Tue Nov 24 18:53:07 2015 +0100 added URL for germandnscrypt-01.de Merge: 0011718 ae0bd91 * Tue Nov 24 14:18:26 2015 +0100 Merge pull request #1 from jedisct1/master Update * Mon Nov 23 23:31:12 2015 +0100 Sign Merge: 961b22d 0011718 * Mon Nov 23 22:50:49 2015 +0100 Merge pull request #317 from Makedu/master Update dnscrypt-resolvers.csv * Mon Nov 23 22:29:39 2015 +0100 Update dnscrypt-resolvers.csv added germandnscrypt-01.de * Sun Nov 22 10:35:29 2015 +0100 Use TCP_QUICKACK instead of TCP_NODELAY if available * Sun Nov 22 10:35:23 2015 +0100 safe_rw size checks * Thu Nov 19 12:01:10 2015 +0100 Add Cryptostorm servers * Wed Nov 18 23:39:06 2015 +0100 Add d0wn-gr-ns1 * Tue Nov 17 01:25:41 2015 +0100 Check crypto_box_beforenm() return code * Sun Nov 15 17:36:39 2015 +0100 Temporarily remove offline resolvers * Mon Nov 9 02:33:22 2015 +0100 Test with libsodium-stable * Sat Oct 31 19:05:51 2015 +0100 Update the resolvers list Merge: 7eaa9e9 62a09ee * Sat Oct 31 18:56:53 2015 +0100 Merge pull request #302 from Fusl/patch-01 Fixing servers that can be fixed (by changing port) and removing serv… * Mon Oct 19 12:48:23 2015 +0200 Fixing servers that can be fixed (by changing port) and removing servers that are temporarily down * Mon Oct 19 12:03:47 2015 +0200 Sign Merge: 57b21e3 3876234 * Mon Oct 19 11:58:31 2015 +0200 Merge pull request #301 from Fusl/patch-01 Patch 01 * Mon Oct 19 11:51:34 2015 +0200 Add provider/sponsor name to fvz servers description; try #2 * Mon Oct 19 11:43:18 2015 +0200 Add provider/sponsor name to fvz servers description * Mon Oct 19 11:40:47 2015 +0200 Sign Merge: 153f91f 2ecb6a1 * Mon Oct 19 11:40:24 2015 +0200 Merge pull request #299 from Fusl/patch-01 Updating fvz servers to represent an updated list from dnsrec.meo.ws * Mon Oct 19 11:36:22 2015 +0200 Updating fvz servers to represent an updated list from dnsrec.meo.ws * Sun Oct 18 17:39:36 2015 +0200 Correctly handle -X as an alternative to --plugin * Sun Oct 18 00:02:22 2015 +0200 libevent updates for http * Sun Oct 18 00:00:55 2015 +0200 libevent: fix potential fd leak in listener_read_cb() * Sat Oct 17 18:43:38 2015 +0200 Use pledge(2) if available * Thu Oct 15 11:06:13 2015 +0200 Add back Soltysiak + add Soltysiak over IPv6 * Thu Oct 15 10:16:10 2015 +0200 Bring back the Fusl servers that have been kept alive * Thu Oct 15 01:20:52 2015 +0200 Mention the Linux kernel implementation of dnscrypt by Fusl * Thu Oct 15 01:18:17 2015 +0200 Grammar * Thu Oct 15 01:14:22 2015 +0200 Grammar * Mon Oct 5 20:41:03 2015 +0200 Sign Merge: e2730c5 9e2e455 * Mon Oct 5 20:40:42 2015 +0200 Merge pull request #294 from Fusl/patch-01 Removing fvz servers * Mon Oct 5 20:38:49 2015 +0200 Removing fvz servers * Mon Oct 5 17:52:16 2015 +0200 Sign * Sat Oct 3 17:47:34 2015 +0200 Update website and DNS for DNSCrypt Poland * Sun Oct 4 18:40:17 2015 +0200 Revert "Update website and DNS for DNSCrypt Poland" Merge: 9ce9f6c 4760314 * Sun Oct 4 18:29:19 2015 +0200 Merge pull request #293 from pysiak/master Update website and DNS for DNSCrypt Poland * Sat Oct 3 17:47:34 2015 +0200 Update website and DNS for DNSCrypt Poland * Thu Oct 1 08:33:23 2015 +0200 Sign Merge: 4adf7f8 aa32348 * Thu Oct 1 08:32:32 2015 +0200 Merge pull request #292 from Fusl/patch-01 Adding more fvz servers * Thu Oct 1 02:30:15 2015 +0200 Adding more fvz servers * Thu Sep 24 08:15:21 2015 +0200 Adamas and Nawala seem to be down * Thu Sep 24 08:13:41 2015 +0200 Sign Merge: b2d158b 538e982 * Thu Sep 24 08:12:54 2015 +0200 Merge pull request #290 from Fusl/patch-01 Adding new fvz server in Oslo, Norway * Thu Sep 24 00:34:06 2015 +0200 Adding new fvz server in Oslo, Norway * Wed Sep 23 22:33:12 2015 +0200 Sign Merge: 9b843f9 ede0129 * Wed Sep 23 22:32:44 2015 +0200 Merge pull request #289 from Fusl/patch-01 Fix location name for resolver that has been migrated to another location * Wed Sep 23 22:24:54 2015 +0200 Fix location name for resolver that has been migrated to another location * Wed Sep 23 22:05:00 2015 +0200 Make sure full names are unique, and remove extra spaces in the new IPv6 resolvers Merge: 2cef523 aa73b07 * Wed Sep 23 21:53:44 2015 +0200 Many new resolvers accesible over IPv6. Thanks Fusl! * Wed Sep 23 21:52:57 2015 +0200 Many new servers accessible over IPv6. Thanks Fusl! Merge: 7652a08 6c3a283 * Wed Sep 23 21:16:49 2015 +0200 Merge pull request #288 from jedisct1/revert-287-patch-01 Revert "Adding IPv6 version of fvz resolvers" * Wed Sep 23 21:12:21 2015 +0200 Revert "Adding IPv6 version of fvz resolvers" Merge: 05d5d65 ccea147 * Wed Sep 23 21:04:38 2015 +0200 Merge pull request #287 from Fusl/patch-01 Adding IPv6 version of fvz resolvers * Wed Sep 23 13:21:52 2015 +0200 Adding IPv6 version of fvz resolvers * Tue Sep 22 18:16:58 2015 +0200 Sign Merge: 708d7da 9a56576 * Tue Sep 22 18:16:37 2015 +0200 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Removing deprecated server, adding one replacement and one new server * Tue Sep 22 18:16:25 2015 +0200 Sign Merge: fb630cf 03928db * Tue Sep 22 18:16:02 2015 +0200 Merge pull request #285 from Fusl/patch-01 Removing deprecated server, adding one replacement and one new server * Tue Sep 22 18:08:45 2015 +0200 Removing deprecated server, adding one replacement and one new server * Mon Sep 21 13:11:56 2015 +0200 Lower the severity of local recvfrom() errors * Sat Sep 19 20:09:58 2015 +0200 dnscrypt.eu-dk-port5353 seems to be having some troubles * Fri Sep 18 19:14:29 2015 +0200 Do not reference arc4random_addrandom() if it is not defined. It can either be defined by the C library, or via arc4random.c. Either way, it's useless for dnscrypt-proxy. * Thu Sep 10 23:04:09 2015 +0200 resolvers-check: reduce the required margin to 12 hours * Thu Sep 10 22:58:52 2015 +0200 Sign Merge: 85f4fd6 16b1a62 * Thu Sep 10 22:55:37 2015 +0200 Merge pull request #279 from 4ARMED/add_4A_server Add 4ARMED's server * Thu Sep 10 20:38:38 2015 +0100 Add 4ARMED's server * Thu Sep 10 14:49:21 2015 +0200 Sign Merge: 7c44f52 63af1ff * Thu Sep 10 14:48:56 2015 +0200 Merge pull request #278 from bitbeans/master Added new resolver * Thu Sep 10 14:46:18 2015 +0200 Added new resolver * Wed Sep 9 23:05:37 2015 +0200 sign Merge: 20e7ff8 5060a4a * Wed Sep 9 23:02:02 2015 +0200 Merge pull request #277 from Fusl/patch-01 Replacing deprecated fvz servers with new servers * Wed Sep 9 22:23:56 2015 +0200 Replacing deprecated fvz servers with new servers * Mon Sep 7 15:17:41 2015 +0200 dnscrypt.bit is no more * Sat Sep 5 23:36:14 2015 +0200 Sign Merge: ff57440 880951d * Sat Sep 5 23:32:50 2015 +0200 Merge pull request #276 from Fusl/patch-01 Adding new fvz server in Luxembourg, and ... * Sat Sep 5 23:32:27 2015 +0200 No apt-get on OSX * Sat Sep 5 23:17:50 2015 +0200 Adding new fvz server in Luxembourg, and ... ... I have now ensured that the dnscrypt module is automatically loaded when servers (re)start and in addition to this I also implemented a crash reporter that notifies me with stack traces and restarts the module if it crashes. This means that there shouldn't be any problems anymore with crashed modules or modules that haven't been loaded (yet) after a server reboot. * Sun Aug 30 21:27:53 2015 +0200 Sign Merge: 906a4b4 d13e2bc * Sun Aug 30 21:25:00 2015 +0200 Merge pull request #274 from Fusl/patch-01 Adding fvz servers * Sat Aug 29 05:23:57 2015 +0200 Adding fvz servers * Thu Aug 27 04:49:23 2015 +0200 iptables NAT: the destination port doesn't have to be explicitly given. Really. * Thu Aug 27 04:47:48 2015 +0200 Add missing /system/xbin/dnscrypt for Android * Tue Aug 25 17:15:01 2015 +0200 - d0wn-al-ns1 * Mon Aug 24 05:53:42 2015 +0200 Add error path for CSVs without a "Name" column, and with empty names. * Mon Aug 24 05:43:48 2015 +0200 strcasecmp()/strncasecmp() are not available in Visual Studio * Mon Aug 24 02:24:50 2015 +0200 Warn if the header is missing in the CSV file * Mon Aug 24 02:15:39 2015 +0200 exit() immediately if the resolver name was not found * Sun Aug 23 12:29:39 2015 +0200 Add /run/systemd/notify to the apparmor rules * Sat Aug 22 09:54:21 2015 +0200 Sign Merge: 71ab93a 30fe04c * Sat Aug 22 09:53:45 2015 +0200 Merge pull request #269 from Fusl/patch-4392 Adding new fvz server in Finland * Sat Aug 22 04:44:16 2015 +0200 Adding new fvz server in Finland * Thu Aug 20 20:15:45 2015 +0200 Revert "iPredator is down" - It's back. * Wed Aug 19 22:50:15 2015 +0200 Remove d0wn-md-ns1 * Tue Aug 18 08:14:21 2015 +0200 Sign Merge: f20d71f 5ca1c14 * Tue Aug 18 08:13:33 2015 +0200 Merge pull request #264 from Fusl/patch-03 Add fvz server in france, add poland server with different port * Tue Aug 18 02:29:29 2015 +0200 Add fvz server in france, add poland server with different port * Mon Aug 17 22:41:24 2015 +0200 Remove network.target dependency from dnscrypt-proxy.socket If this is not correct, I'd love some input from omebody who knows systemd more than I do (i.e. virtually anyone). * Mon Aug 17 21:17:46 2015 +0200 Sign Merge: a89000b 96121bd * Mon Aug 17 21:13:53 2015 +0200 Merge pull request #263 from Fusl/patch-02 Fix fvz-rec-de-dus-01, remove soon-to-be-shutdown server & add server… * Mon Aug 17 20:43:10 2015 +0200 Fix fvz-rec-de-dus-01, remove soon-to-be-shutdown server & add server that was down temporarily * Mon Aug 17 20:05:56 2015 +0200 A simple test for blocked IP fragments * Mon Aug 17 09:28:34 2015 +0200 iPredator is down * Mon Aug 17 09:27:49 2015 +0200 Remove down FVZ servers Merge: aa715c5 7559dda * Mon Aug 17 09:20:13 2015 +0200 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Fixing deployment info for server fvz-rec-il-ta-01 Again adding some more of my servers Merge: b900b52 2b94889 * Mon Aug 17 09:20:03 2015 +0200 Merge pull request #261 from Fusl/patch-01 Again adding some more of my servers * Mon Aug 17 05:23:34 2015 +0200 Fixing deployment info for server fvz-rec-il-ta-01 * Mon Aug 17 05:19:05 2015 +0200 Again adding some more of my servers Merge: ba5d11c b900b52 * Mon Aug 17 02:21:11 2015 +0200 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Check for SO_REUSEPORT availability Enable SO_REUSEPORT, allowing round-robining to multiple dnscrypt-proxy daemons on a single port Backport LEV_OPT_REUSEABLE_PORT from upstream libevent * Mon Aug 17 02:20:57 2015 +0200 Remove d0wn down servers * Sun Aug 16 05:45:11 2015 +0200 Check for SO_REUSEPORT availability Merge: f96d958 72dfa31 * Sun Aug 16 05:36:02 2015 +0200 Merge pull request #259 from hmoore-r7/feature/reusable-port Enable SO_REUSEPORT * Sat Aug 15 22:31:05 2015 -0500 Enable SO_REUSEPORT, allowing round-robining to multiple dnscrypt-proxy daemons on a single port * Sat Aug 15 22:30:49 2015 -0500 Backport LEV_OPT_REUSEABLE_PORT from upstream libevent * Tue Aug 11 08:03:11 2015 +0200 Sadly compile Android builds using platform version 16 (Android 4.1) * Tue Aug 11 05:16:30 2015 +0200 Missing extra space * Tue Aug 11 05:15:18 2015 +0200 Clarify * Mon Aug 10 18:32:14 2015 +0200 Android iptables rules: explicitly add the port # * Mon Aug 10 18:31:59 2015 +0200 Typo * Wed Aug 5 22:13:28 2015 +0200 Improve the Android build script * Wed Aug 5 22:08:13 2015 +0200 Better Android install script * Wed Aug 5 20:44:29 2015 +0200 Improve Android package * Wed Aug 5 20:43:13 2015 +0200 Add missing tests to dist-files * Wed Aug 5 19:50:14 2015 +0200 Add extra Android build targets, change Android install paths * Wed Aug 5 19:27:16 2015 +0200 USE_ONLY_PORTABLE_IMPLEMENTATIONS is obsolete * Wed Aug 5 02:36:42 2015 +0200 Correct confusing indentation made by jed * Tue Aug 4 22:45:40 2015 +0200 Add high resolution version of the dnscrypt logo * Tue Aug 4 19:32:43 2015 +0200 Add a logo * Tue Aug 4 18:34:17 2015 +0200 Yet another d0wn server Merge: 5059534 79fc8a0 * Tue Aug 4 18:32:45 2015 +0200 Merge pull request #249 from Fusl/patch-1 fvz-rec-za-wc-01 is having issues with DNSCrypt * Tue Aug 4 18:27:47 2015 +0200 fvz-rec-za-wc-01 is having issues with DNSCrypt I'm still fixing this and will update the .csv once the server is running and stable again. Sorry for the inconveniences! * Mon Aug 3 15:28:03 2015 +0200 The location was missing in opennic-fvz-rec-de-fra-01 * Sun Aug 2 22:22:32 2015 +0200 Add new d0wn resolvers * Sun Aug 2 14:26:32 2015 +0200 Bring back the FVZ resolvers with a new key * Sun Aug 2 12:52:58 2015 +0200 Add d0wn-de back * Sun Aug 2 11:23:22 2015 +0200 Have resolvers-check.sh load the local CSV file * Sun Aug 2 11:22:54 2015 +0200 Temporarily remove d0wn-al-ns1 * Sun Aug 2 11:19:16 2015 +0200 Sign * Sun Aug 2 11:18:58 2015 +0200 Remove down d0wn servers * Sun Aug 2 11:15:45 2015 +0200 Sort Merge: e0d0aae 01c16f5 * Sun Aug 2 11:11:45 2015 +0200 Merge pull request #246 from d0wnblog/master dns.d0wn.biz Server update * Sun Aug 2 11:04:43 2015 +0200 All FUSL resolvers do not serve certificates any more * Sat Aug 1 23:43:47 2015 +0200 Update dnscrypt-resolvers.csv Fixed Name's * Sat Aug 1 22:52:36 2015 +0200 Fix * Sat Aug 1 22:51:04 2015 +0200 Added DNSCrypt resolver from dns.d0wn.biz * Sat Aug 1 17:33:14 2015 +0200 Unlist unreliable FVZ servers * Wed Jul 29 20:33:22 2015 +0200 Protocol decription edits * Tue Jul 28 16:28:25 2015 +0200 grammar * Sun Jul 26 15:14:13 2015 +0200 Recommend TFO * Sun Jul 26 15:05:14 2015 +0200 v2 * Sun Jul 26 15:04:35 2015 +0200 Add some known implementations * Sun Jul 26 14:55:58 2015 +0200 DNSCrypt v2 protocol specification * Sat Jul 25 14:15:08 2015 +0200 Double check * Sat Jul 25 14:12:42 2015 +0200 Let example-ldns-blocking parse /etc/hosts-like files, ignoring the first component * Thu Jul 23 10:10:07 2015 +0200 Remove unreliable FUZE resolvers * Sun Jul 19 11:53:31 2015 +0200 Add -S/--syslog via @zedinosaur * Sun Jul 19 02:26:34 2015 +0200 Instructions for IPv6 on Windows * Sun Jul 19 01:48:55 2015 +0200 Windows people prefer \ to / * Sun Jul 19 01:48:07 2015 +0200 Remove .exe * Sun Jul 19 01:47:37 2015 +0200 Use HTTPS * Sun Jul 19 01:46:33 2015 +0200 More Windows documentation * Sun Jul 19 01:30:20 2015 +0200 Improve the Windows documentation * Sat Jul 18 20:14:52 2015 +0200 Format * Sat Jul 18 19:29:19 2015 +0200 Bump example version * Sat Jul 18 18:56:26 2015 +0200 On Windows, $bindir should be the same as $sbindir now. * Sat Jul 18 18:48:44 2015 +0200 Add a README for iOS * Sat Jul 18 18:48:20 2015 +0200 Same procedure to get an elevated Windows prompt on Windows 10 * Sat Jul 18 18:24:40 2015 +0200 Update ChangeLog * Sat Jul 18 18:22:56 2015 +0200 Install a sample .plist file on iOS * Sat Jul 18 18:11:35 2015 +0200 Obviously in the plist file, the path to the app has o be first. * Sat Jul 18 17:29:58 2015 +0200 fpm package version bump * Sat Jul 18 17:29:04 2015 +0200 Remove local gentoo ebuilds; not maintained any more. * Sat Jul 18 17:28:29 2015 +0200 Remove Debian package. Doesn't seem to be maintained any more. * Sat Jul 18 17:26:44 2015 +0200 + minisign.pub * Sat Jul 18 17:12:39 2015 +0200 New OpenNIC server: Tumabox, courtesy of TumaBox.org * Sat Jul 18 16:52:06 2015 +0200 Test that plugins are at least loadable * Sat Jul 18 16:27:05 2015 +0200 Update signature comment * Sat Jul 18 16:25:35 2015 +0200 Update ChangeLog * Sat Jul 18 16:15:40 2015 +0200 Remove unreliable FUZE servers again. * Sat Jul 18 16:05:35 2015 +0200 Add a test for static keys * Sat Jul 18 15:48:05 2015 +0200 Update tests Testing on servers not running recent server proxy code is not useful * Sat Jul 18 15:12:03 2015 +0200 Factorize the change log * Sat Jul 18 14:58:25 2015 +0200 1.6.0 is almost ready * Sat Jul 18 14:53:19 2015 +0200 Add support for client authentication. * Sat Jul 18 14:15:15 2015 +0200 Require at least Sodium 0.7.0 * Sat Jul 18 14:13:20 2015 +0200 Do not check for sodium_mlock() presence any more. This has been available in libsodium for a long time. * Sat Jul 18 13:21:12 2015 +0200 Update tests * Sat Jul 18 12:33:38 2015 +0200 Make it less confusing that ephemeral keys have been enabled (or not) * Sat Jul 18 12:30:52 2015 +0200 Avoid a pointless memcpy() * Sat Jul 18 01:57:20 2015 +0200 A few examples * Sat Jul 18 01:41:39 2015 +0200 Keep making Windows users happy * Sat Jul 18 01:39:15 2015 +0200 Move pretty much everything in the same directory on Windows This is a breaking change, so bump major version. * Sat Jul 18 01:34:11 2015 +0200 Remove redundant check on Windows * Sat Jul 18 01:28:51 2015 +0200 Rebase the plugin path onto the application directory on Windows * Sat Jul 18 01:24:43 2015 +0200 No more "plugins" folder - Put everything at the same place on Windows. * Sat Jul 18 00:26:36 2015 +0200 Next will be 1.5.1 Merge: 6fb2dd9 b676f8f * Sat Jul 18 00:17:21 2015 +0200 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: clarify Bail out in autogen.sh if pkg-config is not available. Printing the error is not enough; people don't read error messages. Update aclocal Correct URL for libevent It's dnscrypt-proxy. dnscrypt-wrapper wasn't written by me. A copy of NaCl is not bundled any more. * Sat Jul 18 00:15:39 2015 +0200 Windows users, rejoice! (plugins do not benefit from this yet, though) * Sat Jul 18 00:09:13 2015 +0200 On Windows, rebase the path to the list of resolvers to the application directory * Sat Jul 18 00:02:14 2015 +0200 Return NULL on OOM * Fri Jul 17 23:58:22 2015 +0200 Export path_from_app_folder() even on !WIN32 * Fri Jul 17 23:00:49 2015 +0200 On Windows, add a helper to rebase a path to the application directory * Fri Jul 17 09:22:02 2015 +0200 clarify * Tue Jul 14 11:50:23 2015 +0200 Bail out in autogen.sh if pkg-config is not available. Printing the error is not enough; people don't read error messages. * Sun Jul 12 02:12:31 2015 +0200 Update aclocal * Sun Jul 12 02:00:44 2015 +0200 Correct URL for libevent * Sun Jul 12 01:59:48 2015 +0200 It's dnscrypt-proxy. dnscrypt-wrapper wasn't written by me. * Sun Jul 12 01:58:27 2015 +0200 A copy of NaCl is not bundled any more. * Sat Jul 11 12:04:38 2015 +0200 Remove unreliable OpenNIC Fuze servers * Thu Jul 9 20:59:29 2015 +0200 Link the tarballs * Thu Jul 9 20:53:10 2015 +0200 dnscrypt -> dnscrypt-proxy * Tue Jul 7 10:33:26 2015 +0200 Point to LATEST-win32-full.zip for the Windows package * Mon Jul 6 16:25:10 2015 +0200 update signatures * Mon Jul 6 16:21:28 2015 +0200 + nawala * Mon Jul 6 02:07:00 2015 +0200 Add a link to the server Docker image * Sat Jul 4 21:28:20 2015 +0200 The server MAGIC can be derived from public keys * Wed Jul 1 13:07:17 2015 +0200 sign * Wed Jul 1 13:06:15 2015 +0200 ovpn.to is part of OpenNIC * Wed Jul 1 13:04:18 2015 +0200 + ovpn.to Sweden and Romania * Tue Jun 30 16:52:53 2015 +0200 Update signatures * Tue Jun 30 16:52:36 2015 +0200 Reorder * Tue Jun 30 16:07:41 2015 +0200 OpenDNS company has been acquired by Cisco * Tue Jun 30 10:39:47 2015 +0200 Remove unresponsive fvz resolvers * Tue Jun 30 10:17:56 2015 +0200 Revert "dnscrypt.eu servers were renamed" * Mon Jun 29 15:04:55 2015 +0200 dnscrypt.eu servers were renamed * Tue Jun 23 22:19:28 2015 +0200 Restore dnscrypt.eu-nl-port5353 * Mon Jun 22 16:42:40 2015 +0200 + ovpnto-lat Merge: d459d12 f0d097c * Sun Jun 21 11:30:13 2015 +0200 Merge pull request #226 from lhoBas/patch-1 Fix markdown link syntax for minisign + minisig * Sun Jun 21 10:22:29 2015 +0200 Fix markdown link syntax for minisign + minisig * Fri Jun 19 16:56:23 2015 +0200 Remove spaces * Fri Jun 19 16:53:24 2015 +0200 dnscrypt.eu-nl-port5353 and d0wn-nl-ns2 are currently down * Fri Jun 19 16:52:37 2015 +0200 Obviously .bit requires namecoin * Thu Jun 18 17:43:40 2015 +0200 Unfortunately, the Docker images are not maintained any more * Tue Jun 16 18:28:37 2015 +0200 Not relevant any more with msys2 Merge: a66823e d49c7da * Thu Jun 11 09:41:46 2015 +0200 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: New link to Minisign * Thu Jun 11 09:25:27 2015 +0200 New link to Minisign * Thu Jun 11 07:44:02 2015 +0200 Pasto * Wed Jun 10 21:49:19 2015 +0200 The shared key is apparently called "device" now. * Wed Jun 10 18:17:44 2015 +0200 1.5.0 * Wed Jun 10 16:55:28 2015 +0200 Update ChangeLog * Wed Jun 10 16:54:56 2015 +0200 Add a new Windows registry key: EphemeralKeys * Wed Jun 10 15:38:16 2015 +0200 Rephrase * Wed Jun 10 13:12:02 2015 +0200 Enable TFO on Linux * Wed Jun 10 11:23:11 2015 +0200 Useless update to test the dnscrypt.org mirror * Tue Jun 9 18:15:12 2015 +0200 dnscrypt.org-fr now supports Namecoin domains * Tue Jun 9 14:05:40 2015 +0200 Easier * Tue Jun 9 01:47:16 2015 +0200 Not relevant any more since the switch to port 443. * Mon Jun 8 18:59:48 2015 +0200 Regen sig * Mon Jun 8 18:58:58 2015 +0200 Revert "CloudNS Canberra is down" * Mon Jun 8 18:56:26 2015 +0200 Add a link to the signature * Mon Jun 8 16:57:05 2015 +0200 + dnscrypt-resolvers.csv.minisig * Mon Jun 8 16:50:06 2015 +0200 The minisign public key * Mon Jun 8 16:39:25 2015 +0200 Update signature * Mon Jun 8 16:37:48 2015 +0200 CloudNS Canberra is down * Thu Jun 4 19:29:40 2015 +0200 Sorry, I haven't tried Solaris for a while * Wed Jun 3 13:05:05 2015 +0200 If compiled with --enable-plugins-root, allow absolute paths starting with the root, and always prepends the root if another absolute path is given. * Wed Jun 3 12:30:37 2015 +0200 "Mobility" doesn't seem to be called like that any more. * Wed Jun 3 12:16:57 2015 +0200 Remove WARNING * Wed Jun 3 12:16:37 2015 +0200 The IP address doesn't have to be in hexadecimal any more * Wed Jun 3 12:11:34 2015 +0200 Reduce the allowed burst of identical log messages and increase the time window * Wed Jun 3 12:07:12 2015 +0200 Document log levels * Tue Jun 2 21:44:28 2015 +0200 Bump * Tue Jun 2 21:44:05 2015 +0200 Update ChangeLog * Tue Jun 2 21:39:04 2015 +0200 Use buffered writes for logging. For Windows compat. * Tue Jun 2 21:14:56 2015 +0200 Align * Tue Jun 2 21:00:02 2015 +0200 Next version will be 1.5.0 * Tue Jun 2 20:53:29 2015 +0200 Stop pretending it provides confidentiality. * Tue Jun 2 20:50:56 2015 +0200 Done in 1.4.4 * Tue Jun 2 20:42:49 2015 +0200 Nits Merge: 875004f 950ca2b * Tue Jun 2 20:41:39 2015 +0200 Merge pull request #194 from zedinosaur/logger-notify Add systemd_notify wrapper on sd_notify. * Tue Jun 2 20:29:42 2015 +0200 -E * Tue Jun 2 20:25:21 2015 +0200 dnscrypt-proxy can now use ephemeral keys * Tue Jun 2 18:12:39 2015 +0200 Display provider features * Tue Jun 2 15:00:07 2015 +0200 Disclaimer * Wed May 27 00:23:43 2015 +0200 Add a script to check providers health * Wed May 27 00:19:03 2015 +0200 Remove dead resolvers Udpate signature * Wed May 27 00:06:03 2015 +0200 Reduce the number of retries to fetch the cert in test mode Merge: de235dd 16f4880 * Fri May 22 18:09:01 2015 +0200 Merge pull request #214 from Shnatsel/master Add systemd unit to debian package * Fri May 22 18:25:38 2015 +0300 fscking systemd requires custom scripting on top of .service file, as if dh doesn't automatically know .service files go to systemd. bollocks * Fri May 22 17:34:38 2015 +0300 Documentation lied to me! * Fri May 22 17:26:08 2015 +0300 add missing 'automake' build dependency. Apparently 'autotools-dev' is not sufficient on Ubuntu 15.04 * Fri May 22 16:33:29 2015 +0300 Add a systemd service file for use in Ubuntu 15.04 and Debian Jessie. Not tested yet. * Fri May 22 15:45:10 2015 +0300 Drop duplicated resolvconf code from sysvinit script, use shared init system wrappers instead * Fri May 22 15:35:36 2015 +0300 Fix fallout from IPv6 enablement in sysvinit script * Fri May 22 15:34:24 2015 +0300 add respawn stanza to upstart script so that dnscrypt-proxy will be respawned on crashes, but no more than 3 crashes in 60 seconds are allowed * Fri May 22 15:33:18 2015 +0300 Split all scripting out of Upstart config so it can be reused for systemd config and potentially sysvinit Merge: e1a8073 cb74a72 * Fri May 22 08:53:02 2015 +0200 Merge pull request #209 from Shnatsel/master Add resolvconf support on Ubuntu + minor packaging fixes * Fri May 22 02:35:19 2015 +0300 add another item to changelog * Fri May 22 02:29:25 2015 +0300 Upstart's resolvconf auto-configuration now works with ports explicitly specified in the config * Fri May 22 02:27:41 2015 +0300 Fixed sysvinit script to work with IPv6 local addresses and made it default to 127.0.0.1 for resolvconf if no address is specified explicitly in the config file * Fri May 22 02:02:15 2015 +0300 replace [] with test in upstart-embedded shell scripts; doesn't work otherwise * Fri May 22 01:26:13 2015 +0300 update Debian copyright file * Fri May 22 01:24:30 2015 +0300 update Debian packaging changelog * Fri May 22 01:21:12 2015 +0300 Add support for specifying a custom location for .csv file in dnscrypt-proxy.default and reorganize the .default for readability * Fri May 22 01:19:07 2015 +0300 Add support for resolvconf to Upstart script * Fri May 22 00:18:05 2015 +0300 More useful error reporting in case of missing config file * Sat May 9 17:20:30 2015 +0200 libevent resync * Sat May 9 16:36:29 2015 +0200 Relibtoolize libevent-modified * Sat May 9 16:30:54 2015 +0200 Have dcplugin_get_client_address_len access the right struct member name * Sat May 9 16:16:06 2015 +0200 Use libsodium 1.0.3 * Mon Apr 20 22:18:45 2015 +0200 Don't compile with Clang on Travis * Sat Apr 18 19:10:54 2015 +0200 Test on OSX * Thu Feb 19 14:49:16 2015 +0200 .travis.yml: multiple fixes * test with clang too * move to correct tag when cloning * use as many jobs as CPUs available when running make * notify if job fails immediately without waiting for a long time * Sat Apr 11 11:12:21 2015 +0200 Do not use 127.0.0.7 as an example. * Thu Apr 9 09:54:10 2015 +0200 Update sig * Thu Apr 9 09:53:48 2015 +0200 Fix country for d0wn-ch-ns1 * Tue Apr 7 21:10:20 2015 +0200 Online.net -> Scaleway.com * Sun Apr 5 20:20:22 2015 +0200 The AppArmor profile needs to access the resolvers list and ldns. Not sure that this profile ever worked. * Thu Mar 19 23:32:55 2015 +0100 Remove config.guess patch for Bitrig * Sat Mar 14 22:56:43 2015 -0400 Add systemd_notify wrapper on sd_notify. Move the logic for calling sd_notify into its own function and do better logging of errors returned. Merge: 71a07c1 b5edbb4 * Sun Mar 8 23:43:17 2015 +0100 Merge pull request #191 from dartraiden/master corrected Fusl server addresses * Mon Mar 9 01:31:00 2015 +0300 corrected Fusl server addresses * Sun Mar 8 20:30:20 2015 +0100 Resign dnscrypt-resolvers.csv * Sun Mar 8 20:29:21 2015 +0100 Add Fusl servers * Sat Mar 7 16:18:46 2015 +0100 2015 * Sat Feb 14 01:39:57 2015 +0100 Use libsodium 1.0.2 * Fri Feb 13 20:49:51 2015 +0100 Update signature * Thu Feb 12 08:24:30 2015 +0100 Update d0wn public key * Sun Feb 8 17:08:12 2015 +0100 Sync android build scripts with libsodium * Sun Feb 8 17:00:10 2015 +0100 Remove --disable-pie on Android * Sun Feb 8 16:53:30 2015 +0100 Bump default platform version to 18 Merge: 31b8e3f d1a5dc7 * Sat Feb 7 15:58:27 2015 +0100 Merge pull request #183 from mosin/patch-1 android ndk requires arch to be arm not armv7 * Sat Feb 7 09:48:17 2015 -0500 android ndk requires arch to be arm not armv7 In the android-build.sh script, the call the ${ANDROID_NDK_HOME}/build/tools/make-standalone-toolchain.sh passes TARGET_ARCH as armv7 where as around line 117 of make-standalone-toolchain.sh requires ARCH to be {arm,x86,mips,arm64,x86_64,mips64} * Wed Jan 28 07:52:09 2015 +0100 Use different short descriptions for ipredator and ipredator6 * Wed Jan 28 07:50:56 2015 +0100 Order lexically Merge: 7abdc99 9f9e555 * Wed Jan 28 07:48:08 2015 +0100 Merge pull request #181 from d31m0/patch-1 1 new resolver * Wed Jan 28 05:56:29 2015 +0100 1 new resolver IPV4 / IPV6 resolver by Ipredator.se VPN anonymizer service. * Mon Jan 19 09:47:33 2015 +0100 libtool and autotools are not enough; pkg-config is now also required * Mon Jan 19 09:36:55 2015 +0100 Don't strip binaries on Win32. * Mon Jan 19 09:01:55 2015 +0100 Copy libeay32.dll if required by ldns * Fri Jan 16 09:29:18 2015 +0100 Revert "Add a new OpenNIC server in Washington" * Thu Jan 15 17:21:59 2015 +0100 Add pre-generated man pages * Thu Jan 15 16:58:39 2015 +0100 Revert "Check if -Wl,-pie should be used instead of -pie in LDFLAGS" * Thu Jan 15 09:49:18 2015 +0100 No need to log when recvfrom() returns EAGAIN or EINTR On Linux, recvfrom() returns EAGAIN when the packet has an invalid checksum. * Fri Jan 9 08:36:59 2015 +0100 Remove OpenNIC JP servers * Tue Jan 6 10:57:05 2015 +0100 + DNSSEC signed public key for fr-dnscrypt.org * Mon Jan 5 21:36:22 2015 +0100 We use edns by default, so set udp_max_size to the default max payload size * Mon Jan 5 18:07:55 2015 +0100 Update ChangeLog * Mon Jan 5 17:55:36 2015 +0100 +dnscrypt.org-fr * Mon Jan 5 17:16:31 2015 +0100 NEWS update * Mon Jan 5 17:10:50 2015 +0100 Get ready for a new release * Mon Jan 5 17:07:25 2015 +0100 libevent 2.0.22 * Mon Jan 5 17:04:17 2015 +0100 libevent: fix CVE-2014-6272 * Mon Jan 5 17:03:44 2015 +0100 libevent: Fix evbuffer_peek() with len==-1 and start_at non-NULL. * Wed Dec 31 19:09:00 2014 +0100 2015 * Mon Dec 29 18:29:18 2014 +0100 Check if -D_FORTIFY_SOURCE=2 works * Mon Dec 29 18:22:22 2014 +0100 Add IPv6 IP for ns1-wa-us Merge: 14d2932 783edbf * Mon Dec 29 18:19:23 2014 +0100 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Check if -Wl,-pie should be used instead of -pie in LDFLAGS Reflecting 'd0wn-fr-ns1' server IP address change. * Mon Dec 29 18:19:05 2014 +0100 Add a new OpenNIC server in Washington * Mon Dec 29 01:29:11 2014 +0100 Check if -Wl,-pie should be used instead of -pie in LDFLAGS Merge: 8bb1599 579c596 * Fri Dec 26 14:10:13 2014 +0100 Merge pull request #171 from DistantThunder/master Updating d0wn french servers. * Fri Dec 26 02:32:29 2014 +0100 Reflecting 'd0wn-fr-ns1' server IP address change. Changing 'd0wn-fr-ns2' listening port to a working one. Merge: 3f7dbf5 32794a0 * Sun Dec 21 14:08:23 2014 +0100 Merge pull request #169 from pataquets/patch-1 Fix typos * Sun Dec 21 12:05:07 2014 +0100 Fix typo * Sun Dec 21 12:03:01 2014 +0100 Fix typo Merge: 57d3072 562ddd4 * Thu Dec 4 17:40:14 2014 -0800 Merge pull request #166 from xuzhen/master fixed issue #104 * Thu Dec 4 21:31:28 2014 +0800 fixed issue #104 * Wed Dec 3 15:02:27 2014 -0800 Update ChangeLog * Wed Dec 3 15:01:09 2014 -0800 Remove OpenNIC UK resolvers * Tue Dec 2 23:23:29 2014 -0800 Bump fpm package version up * Tue Dec 2 23:22:49 2014 -0800 Use resolver-name * Tue Dec 2 23:07:55 2014 -0800 dnscrypt-wrapper doesn't support socket activation (yet?) * Tue Dec 2 23:07:03 2014 -0800 Document how to run dnscrypt-proxy with systemd * Tue Dec 2 19:15:44 2014 -0800 Remove offline d0wn servers * Tue Dec 2 19:00:11 2014 -0800 open dns supports https now * Tue Dec 2 18:57:21 2014 -0800 Update d0wn IPs, add new d0wn servers, update open dns catchline * Tue Dec 2 17:51:11 2014 -0800 Bump version number * Tue Dec 2 17:27:05 2014 -0800 When using a systemd socket, retrieve its local address. * Tue Dec 2 17:13:02 2014 -0800 The systemd service needs NonBlocking=true * Tue Dec 2 17:08:58 2014 -0800 Socket inherited from systemd must be set to nonblocking. * Tue Dec 2 16:46:27 2014 -0800 When using systemd, the local address may not reflect the reality. * Tue Dec 2 16:39:50 2014 -0800 UDP sockets sent by systemd are not listening * Tue Dec 2 15:52:58 2014 -0800 Fix error message * Tue Dec 2 15:40:42 2014 -0800 Add a simple sample systemd service file. * Tue Dec 2 15:15:06 2014 -0800 Add SYSTEMD_DAEMON_ flags * Tue Dec 2 14:54:05 2014 -0800 The TCP socket is of type SOCK_STREAM. * Tue Dec 2 14:53:47 2014 -0800 Outline systemd descriptors initialization * Tue Dec 2 14:51:35 2014 -0800 Check for libsystemd-daemon in addition to libsystemd. Do not pick systemd unless --with-systemd is explicitly used. * Tue Dec 2 14:18:15 2014 -0800 A file descriptor doesn't have to be >= 0 * Tue Dec 2 14:16:52 2014 -0800 Indent * Tue Dec 2 16:42:19 2014 -0800 logger() -> logger_noformat() * Tue Dec 2 15:43:22 2014 -0800 Use sodium 1.0.1 * Tue Dec 2 14:56:50 2014 -0800 libevent2: Fix race caused by event_active There is a race between manual event_active and natural event activation. If both happen at the same time on the same FD, they would both be protected by the same event base lock except for 1 LoC where the fields of struct event are read without any kind of lock. In 2.0-stable, none of this is inside the lock; in HEAD, only the callback is read inside the lock. This gets the callback and all 3 arguments inside the lock before calling it outside the lock. * Tue Dec 2 14:55:57 2014 -0800 Sodium 0.5.0 is the bare minimum. Merge: 6d3a902 7a8b8e8 * Tue Dec 2 14:12:37 2014 -0800 Merge pull request #165 from zedinosaur/systemd Add socket activation to dnscrypt-proxy. * Sat Nov 29 22:56:40 2014 -0500 Add documentation about systemd integration. * Sat Nov 29 22:27:23 2014 -0500 Move READY notify to when listeners start. * Sat Nov 29 14:47:26 2014 -0500 Add socket activation to dnscrypt-proxy. Conditional systemd support for socket activation and startup and shutdown notification. Merge: 3c605e7 24efbde * Tue Nov 25 16:41:48 2014 -0800 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: iOS: add -miphoneos-version-min Add the cypherpunk.lu server Update dnscrypt-resolvers.csv.sig Sort resolvers list Added a DNSCrypt server in Luxembourg Indent High-level functions are enough Not Poly1305-AES. * Tue Nov 25 16:41:29 2014 -0800 Don't use -fwrapv if it's redundant. * Thu Nov 20 14:01:46 2014 -0800 iOS: add -miphoneos-version-min * Fri Oct 31 13:02:14 2014 -0700 Add the cypherpunk.lu server * Fri Oct 31 09:01:55 2014 -0700 Update dnscrypt-resolvers.csv.sig * Fri Oct 31 09:01:35 2014 -0700 Sort resolvers list Merge: 4ab8308 1f3d58e * Fri Oct 31 08:58:52 2014 -0700 Merge pull request #157 from virii/master Added a DNSCrypt server in Luxembourg * Fri Oct 31 16:51:27 2014 +0100 Added a DNSCrypt server in Luxembourg * Wed Oct 29 02:13:20 2014 -0700 Indent * Wed Oct 29 02:12:30 2014 -0700 High-level functions are enough * Wed Oct 29 02:09:37 2014 -0700 Not Poly1305-AES. Merge: 41c667e ca47395 * Mon Oct 13 10:17:52 2014 -0700 Merge pull request #150 from rob/patch-1 Update dnscrypt-resolvers.csv * Mon Oct 13 09:33:50 2014 -0400 Update dnscrypt-resolvers.csv According to the OpenNIC wiki [1], the correct IPv6 address for PhilipSoutham's server is ns18.ca.us, not ns17.ca.us. The provider key was also wrong. [1] http://wiki.opennicproject.org/Tier2 * Fri Oct 10 19:17:23 2014 -0700 Libevent2 - Fix a typo in a doxygen comment. Reported by äå. * Tue Sep 30 16:05:35 2014 -0700 d0wn servers support Namecoin - Prodded by @bugreport0 Merge: 9ec8509 5a9a96d * Mon Sep 29 15:42:05 2014 -0700 Merge remote-tracking branch 'teknocrat/master' * teknocrat/master: * New ebuild for 1.4.0 * New ebuild for 1.4.1 * Configuration change to support providers * Drop libsodium from overlay (is not in portage tree) * Dnscrypt-Proxy 1.4.x requires libsodium 1.0.0 or newer Conflicts: packages/gentoo/net-dns/dnscrypt-proxy/Manifest packages/gentoo/net-dns/dnscrypt-proxy/dnscrypt-proxy-1.4.0.ebuild packages/gentoo/net-dns/dnscrypt-proxy/dnscrypt-proxy-1.4.1.ebuild * Wed Sep 24 11:17:38 2014 -0400 * New ebuild for 1.4.0 * New ebuild for 1.4.1 * Configuration change to support providers * Drop libsodium from overlay (is not in portage tree) * Dnscrypt-Proxy 1.4.x requires libsodium 1.0.0 or newer * Sun Sep 28 01:42:11 2014 -0700 and -> and/or Merge: 1578efb 4cd37f7 * Sat Sep 27 12:13:32 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: * New ebuild for 1.4.0 * New ebuild for 1.4.1 * Configuration change to support providers * Sat Sep 27 12:13:10 2014 -0700 Fix the tests, update Gemfile by the way Merge: 4991aa3 c21c3c1 * Wed Sep 24 08:56:40 2014 -0700 Merge pull request #145 from Teknocrat/master New Gentoo ebuilds for 1.4.0 and 1.4.1 * Wed Sep 24 11:17:38 2014 -0400 * New ebuild for 1.4.0 * New ebuild for 1.4.1 * Configuration change to support providers * Sat Sep 20 23:05:44 2014 -0700 Mention that a minimal build of libsodium is fine. * Fri Sep 19 00:02:26 2014 -0700 Update ChangeLog Merge: 3c960ad 1e2eb46 * Thu Sep 18 23:23:45 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Do not use the same description for 2 different configurations Update ChangeLog libevent - [Bugfix] fix bufferevent setwatermark suspend_read libevent - regress_buffer: fix 'memcmp' compare size * Thu Sep 18 23:18:23 2014 -0700 1.4.0 -> 1.4.1 * Thu Sep 18 22:55:23 2014 -0700 timing -> timing out * Thu Sep 18 18:56:25 2014 -0700 Do not use the same description for 2 different configurations * Thu Sep 18 17:25:37 2014 -0700 Update ChangeLog * Thu Sep 18 17:24:03 2014 -0700 libevent - [Bugfix] fix bufferevent setwatermark suspend_read * Thu Sep 18 17:23:22 2014 -0700 libevent - regress_buffer: fix 'memcmp' compare size Merge: 5d55fee 4a3a23c * Thu Sep 11 20:22:14 2014 -0700 Merge remote-tracking branch 'Shnatsel/master' * Shnatsel/master: Bump compat to 9, standards version to 3.9.5 Drop AppArmor installation from Debian/Ubuntu package Since we could not resolve the AppArmor shutdown issue so far, at least add a warning about it * Sun Sep 7 17:49:19 2014 -0700 Target iOS 7.1 since iOS 8 hasn't been jailbroken yet * Sat Sep 6 13:58:09 2014 -0700 Use Sodium 0.7.0 * Thu Sep 4 15:05:58 2014 -0700 ChangeLog update * Thu Sep 4 15:00:35 2014 -0700 Add a few comments to the .plist file * Thu Sep 4 14:57:28 2014 -0700 Mention that the path to the CSV file is also required * Tue Sep 2 20:09:22 2014 -0700 ChangeLog update * Tue Sep 2 14:53:24 2014 -0700 libevent: Consistently check for failure from evbuffer_pullup() * Wed Aug 27 22:50:37 2014 -0700 Ship libgcc_s_dw2-1.dll in the Windows package * Tue Aug 26 19:14:37 2014 -0700 Bump libsodium DLL version * Tue Aug 26 11:45:14 2014 -0700 Mention Docker images * Sun Aug 24 19:03:35 2014 +0400 Bump compat to 9, standards version to 3.9.5 * Sun Aug 24 18:48:36 2014 +0400 Drop AppArmor installation from Debian/Ubuntu package * Sun Aug 24 18:40:29 2014 +0400 Since we could not resolve the AppArmor shutdown issue so far, at least add a warning about it * Fri Aug 22 11:48:53 2014 -0700 libevent2 * Fri Aug 22 11:48:19 2014 -0700 DTrace -> dtrace * Fri Aug 22 11:47:32 2014 -0700 Update documentation * Fri Aug 22 11:43:17 2014 -0700 I am not running Mountain Lion any more. * Fri Aug 22 11:43:02 2014 -0700 Doc update * Thu Aug 21 23:05:59 2014 -0700 More permanent issues URL * Thu Aug 21 22:58:04 2014 -0700 -encrypted * Thu Aug 21 22:55:33 2014 -0700 Clarify what the Resolver Name is * Thu Aug 21 22:54:05 2014 -0700 Regen documentation * Thu Aug 21 22:47:22 2014 -0700 Make it clear that most people just need to run dnscrypt-proxy -R * Tue Aug 19 10:18:04 2014 -0700 Add a few files created by "make verify" to .gitignore. * Tue Aug 19 08:28:49 2014 -0700 Note about dnscrypt.org being blocked * Sat Aug 16 22:31:53 2014 -0700 Revert "No more resolvers in Japan :(" * Thu Aug 14 12:13:23 2014 -0700 Remove unused function. * Tue Aug 12 22:43:43 2014 -0700 Revert "Bring back clang on Travis" Merge: ef06bdb 1eb7a00 * Tue Aug 12 22:43:32 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Bring back clang on Travis * Tue Aug 12 22:41:55 2014 -0700 No more resolvers in Japan :( * Mon Aug 11 16:47:26 2014 -0700 Bring back clang on Travis * Thu Aug 7 20:14:01 2014 -0700 clang seems to be broken on Travis * Thu Aug 7 19:45:22 2014 -0700 Document that some plugins need additional DLLs on Windows * Mon Jul 28 13:02:56 2014 -0700 Don't even try to parse an empty file. * Sat Jul 26 12:12:17 2014 -0700 Bump version to 1.4.1 * Sat Jul 26 12:07:19 2014 -0700 mlock() the proxy context * Sat Jul 26 11:59:43 2014 -0700 Replace the custom fingerprint parse with sodium_hextobin() Merge: 5ddc648 3f85a31 * Sat Jul 26 11:21:41 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Add alternative port to dnscrypt.eu servers * Sat Jul 26 11:21:26 2014 -0700 "sodium.h" -> Merge: aab1871 025ac7f * Fri Jul 18 13:15:52 2014 -0700 Merge pull request #125 from trrbl/master Add alternative port to dnscrypt.eu servers * Fri Jul 18 23:38:25 2014 +0400 Add alternative port to dnscrypt.eu servers Some ISP are filtering outgoing port 443. Merge: 3592248 ad407a0 * Sat Jul 5 10:23:26 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Package new Android build scripts * Sat Jul 5 10:22:42 2014 -0700 Do not retry to send UDP packets, let the stub resolver do it. * Wed Jul 2 16:47:15 2014 -0700 Package new Android build scripts Merge: b8e8055 8a5cd0f * Mon Jun 30 10:40:06 2014 -0700 Merge pull request #122 from Teknocrat/patch-1 Update dnscrypt-proxy-1.3.3-r1.ebuild * Mon Jun 30 10:33:08 2014 -0700 Update dnscrypt-proxy-1.3.3-r1.ebuild You need this additional line or else Gentoo will not actually create the local user and group accounts.. * Sun Jun 29 10:54:52 2014 -0700 Target iOS 8.0 * Mon Jun 16 21:19:32 2014 -0700 Add OpenDNS on port 53 for some unusual setups * Mon Jun 2 20:36:59 2014 -0700 Tweak OSX compile flags * Sun Jun 1 22:49:41 2014 -0700 Travis: install libldns-dev * Sun Jun 1 23:00:44 2014 -0700 Use libsodium 0.5.0 * Mon Jun 2 20:29:04 2014 -0700 On OSX, compile for Mountain Lion. Merge: 5bd6577 1cbcb8f * Fri May 23 09:09:36 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Default to OpenDNS resolvers explicitly in the old-style config file because DNSCrypt no longer defaults to them internally * Fri May 23 09:09:22 2014 -0700 Log the signal number in the signal handler Merge: c4d8ffc 66a97df * Fri May 16 09:03:58 2014 -0700 Merge pull request #107 from Shnatsel/fix-config Default to OpenDNS resolvers explicitly in the old-style config file... * Fri May 16 13:39:56 2014 +0400 Default to OpenDNS resolvers explicitly in the old-style config file because DNSCrypt no longer defaults to them internally * Tue May 13 11:05:41 2014 -0700 Revert ""[debian revision] should be zero, because this package is not in Debian yet and thus has no Debian revisions"" * Tue May 13 06:28:28 2014 -0700 "[debian revision] should be zero, because this package is not in Debian yet and thus has no Debian revisions" Merge: 786180e 8782c8e * Mon May 12 07:20:21 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Link http://dominustemporis.com/2014/05/dnscrypt-on-windows-update/ * Mon May 12 07:19:54 2014 -0700 OpenDNS FamilyShield IP address is 208.67.220.123 * Mon May 12 07:19:26 2014 -0700 is confusing to Windows users, so use quotes. Merge: c0fb5fe 536abb6 * Sat May 10 22:33:53 2014 -0700 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Ship libwinpthread-1.dll on Windows Tell Windows users to open the 'bin' directory. Windows: copy the CSV file to $bindir Update signature Make sure that 'plugins' and 'bin' are directories. Add CPPFLAGS/LDFLAGS for libsodium Update Win32 build scripts Add two new d0wn servers. Via Martin A. Just discovered Windows + X ... * Sat May 10 22:33:44 2014 -0700 Link http://dominustemporis.com/2014/05/dnscrypt-on-windows-update/ * Mon May 5 17:00:20 2014 -0700 Ship libwinpthread-1.dll on Windows * Mon May 5 16:48:10 2014 -0700 Tell Windows users to open the 'bin' directory. * Mon May 5 16:47:03 2014 -0700 Windows: copy the CSV file to $bindir * Mon May 5 16:28:31 2014 -0700 Update signature * Mon May 5 16:26:45 2014 -0700 Make sure that 'plugins' and 'bin' are directories. * Mon May 5 16:13:11 2014 -0700 Add CPPFLAGS/LDFLAGS for libsodium * Mon May 5 16:08:37 2014 -0700 Update Win32 build scripts * Mon May 5 15:44:29 2014 -0700 Add two new d0wn servers. Via Martin A. * Sun May 4 22:59:09 2014 -0700 Just discovered Windows + X ... * Wed Apr 30 18:03:35 2014 -0700 Sync the Android build scripts with libsodium's * Mon Apr 28 10:01:17 2014 -0700 Remove opennic-proxy.sh-dns2 until what is wrong with it gets sorted out * Sat Apr 26 10:14:32 2014 -0700 Update .csv sig * Sat Apr 26 10:14:10 2014 -0700 Nits * Sat Apr 26 10:12:16 2014 -0700 proxy.sh: use names closer to the convention used by other entries * Sat Apr 26 10:06:32 2014 -0700 Update .csv signature Merge: 5bb89b5 6630fd1 * Sat Apr 26 10:05:22 2014 -0700 Merge pull request #94 from boianmihailov/patch-1 Add couple of servers to dnscrypt-resolvers.csv * Sat Apr 26 16:39:40 2014 +0300 Add couple of servers to dnscrypt-resolvers.csv Append two DNS server provided by proxy.sh * Fri Apr 25 00:12:48 2014 -0700 --daemonize is not the only option one may want to use * Thu Apr 24 23:31:23 2014 -0700 Regen dnscrypt-resolvers.csv.sig * Thu Apr 24 23:20:35 2014 -0700 Add final stop * Thu Apr 24 23:19:56 2014 -0700 Update documentation example * Thu Apr 24 23:18:34 2014 -0700 Link README-WINDOWS.markdown instead of out-of-date instructions. * Thu Apr 24 23:15:49 2014 -0700 Quote args, remove spaces * Thu Apr 24 22:57:01 2014 -0700 Version 1.1.0 is dead old, no need to mention it. * Thu Apr 24 22:56:17 2014 -0700 Update .plist * Thu Apr 24 22:49:18 2014 -0700 Update NEWS * Thu Apr 24 22:26:30 2014 -0700 Update ChangeLog * Thu Apr 24 22:25:06 2014 -0700 Do not document --reinstall * Thu Apr 24 22:24:41 2014 -0700 Document how to open an elevated command prompt * Thu Apr 24 17:44:37 2014 -0700 Make dnscrypt-proxy half-decent on Windows * Thu Apr 24 23:23:49 2014 +0000 Add windows_service_registry_write_string(() * Wed Apr 23 23:10:14 2014 -0700 Quote dnscrypt-proxy * Wed Apr 23 21:38:21 2014 -0700 No need to check for inet_pton after all * Wed Apr 23 21:37:49 2014 -0700 Fu fu fu Windows, fu fu fuuuuu * Wed Apr 23 21:24:49 2014 -0700 Define a replacement inet_pton() function for Windows * Wed Apr 23 21:10:17 2014 -0700 Use inet_pton() instead of inet_aton() * Wed Apr 23 12:56:00 2014 -0700 Revert cf5a85b255f86db8b2c5ec4fe45aa383903a69bb * Wed Apr 23 08:20:26 2014 -0700 Update d0wn entries, requested by d0wn * Tue Apr 22 22:17:05 2014 -0700 Update dnscrypt-resolvers.csv signature * Tue Apr 22 22:12:54 2014 -0700 Update ns4.ca.dns.opennic.glue signature, via Nova King * Tue Apr 22 20:08:48 2014 -0700 Sign .csv file * Tue Apr 22 20:06:13 2014 -0700 Add CloudNS Tor addresses * Tue Apr 22 08:12:15 2014 -0700 Mention DNSCrypt-OSXClient, a new universal client for OSX. * Mon Apr 21 21:12:31 2014 -0700 Do not skip the last row of the CSV file. * Mon Apr 21 14:04:08 2014 -0700 Mention extra plugins * Mon Apr 21 14:00:26 2014 -0700 Markdown fixups * Mon Apr 21 13:58:36 2014 -0700 Update documentation * Mon Apr 21 13:58:17 2014 -0700 Do not recommend logging to /tmp * Mon Apr 21 13:01:01 2014 -0700 opennic-ca-ns17 is actually in Fremont, CA, US. * Mon Apr 21 12:53:23 2014 -0700 Full country names * Mon Apr 21 12:50:16 2014 -0700 for d0wn and OpenNIC servers, place the country code first to improve sorting * Mon Apr 21 12:46:06 2014 -0700 OK Turtles is okTurtles * Mon Apr 21 12:44:53 2014 -0700 opendns-ipv6 description should be unique * Mon Apr 21 12:44:03 2014 -0700 Sort, and add OpenDNS IPv6 and OpenDNS Familyshield * Mon Apr 21 12:35:00 2014 -0700 Complete d0wn servers * Mon Apr 21 12:33:18 2014 -0700 CSV is hard * Mon Apr 21 12:32:21 2014 -0700 Add missing version # * Mon Apr 21 12:31:13 2014 -0700 Missing , * Mon Apr 21 12:30:18 2014 -0700 Fix CSV * Mon Apr 21 12:28:38 2014 -0700 More d0wn servers * Mon Apr 21 12:17:31 2014 -0700 Phew, NovaKing has so many resolvers... * Mon Apr 21 12:10:01 2014 -0700 Slowly complete the list of resolvers... * Mon Apr 21 11:48:13 2014 -0700 Add dnscrypt.eu IPv6 addresses * Mon Apr 21 11:24:47 2014 -0700 Remove unneeded quotes from CSV file * Mon Apr 21 11:23:24 2014 -0700 Remove empty records from CSV file * Mon Apr 21 11:23:01 2014 -0700 Cleanup CSV file * Fri Apr 18 04:56:18 2014 -0700 Plugins shouldn't be considered experimental any more Merge: cadf94b d005fa4 * Thu Apr 17 08:18:14 2014 -0700 Merge pull request #91 from pysiak/master Update GEO coordinates and pubkey for Soltysiak * Thu Apr 17 13:31:21 2014 +0200 Update GEO coordinates and pubkey for Soltysiak * Thu Apr 17 00:21:22 2014 -0700 Better usage() * Thu Apr 17 00:06:43 2014 -0700 Add ResolverName and ResolversList to the Windows registry keys * Wed Apr 16 23:58:19 2014 -0700 Install dnscrypt-resolvers.csv * Wed Apr 16 23:48:43 2014 -0700 Move the list of resolvers to $pkgdatadir * Wed Apr 16 23:22:11 2014 -0700 New option -R to automatically pick resolver config from a name * Wed Apr 16 23:21:41 2014 -0700 Initialize the default resolver name to NULL * Wed Apr 16 21:30:20 2014 -0700 Open the CSV file in binary mode. * Wed Apr 16 21:27:50 2014 -0700 Portably computing the size of a file in C is not a solved problem. https://www.securecoding.cert.org/confluence/display/seccode/FIO19-C.+Do+not+use+fseek()+and+ftell()+to+compute+the+size+of+a+regular+file * Wed Apr 16 20:45:09 2014 -0700 Define the path to dnscrypt-resolvers.csv * Wed Apr 16 20:12:59 2014 -0700 Use sodium_mlock() if available. * Wed Apr 16 19:51:22 2014 -0700 Check for sodium_mlock existence * Wed Apr 16 00:28:33 2014 -0700 MiniCSV: move macros to minicsv.h * Wed Apr 16 00:23:27 2014 -0700 Import MiniCSV * Wed Apr 16 06:08:11 2014 -0700 Downgrade "Received a resolver reply from a different resolver" to LOG_DEBUG * Wed Apr 16 06:02:07 2014 -0700 Next release will be 1.4.0 * Wed Apr 16 06:02:07 2014 -0700 Fix buggy retry code. Issue #71 * Sat Apr 12 13:33:20 2014 -0700 Fragmentation is allowed only if the packet size > the outgoing interface MTU. * Wed Apr 9 19:44:42 2014 -0700 Require provider information. * Wed Apr 9 12:15:28 2014 -0700 libevent: disable regress by default, as it requires network communications. * Tue Apr 8 14:43:27 2014 -0700 + DNSCrypt Tools Merge: 72a9e48 4fac7f8 * Tue Apr 8 11:01:21 2014 -0700 Merge pull request #81 from aureq/master package compliance with debian distribution Merge: 6e646ad 9ee793f * Mon Apr 7 09:37:11 2014 -0700 Merge pull request #87 from Teknocrat/master New initd File for Gentoo allows configuration of different DNS servers * Mon Apr 7 12:29:21 2014 -0400 New initd File for Gentoo allows configuration of different DNS resolvers vid conf.d config file variables * Sat Mar 29 21:34:48 2014 -0700 Fix a crash in evdns related to shutting down evdns (Improved version to deal correctly with probe requests) Patch from YASUOKA Masahiko; fix for libevent github issue #113. * Tue Mar 25 15:23:56 2014 -0700 Fix documentation: --resolver-address not --server-address * Tue Mar 25 08:06:03 2014 -0700 Fix a crash in evdns related to shutting down evdns Patch from YASUOKA Masahiko; fix for libevent github issue #113. * Sun Mar 23 19:15:19 2014 +1100 return a fail if stop is request and the process wasn't running * Sun Mar 23 19:10:47 2014 +1100 pass the configuration to the argument parser added --brackground to start-stop-daemon so the process is started correctly in the background only retrieve the most recent pid for the daemon cosmetic changes with "echo" if process can't be killed, then return a fail (log_end_msg 1) * Sun Mar 23 18:34:24 2014 +1100 exclude 'resolvconf' from the upstart script when processing options * Sun Mar 23 18:03:45 2014 +1100 fixed syntax error in init script * Sun Mar 23 17:56:12 2014 +1100 debian init script as debian doesn't use upstart * Sun Mar 23 17:28:01 2014 +1100 removed --user=dnscrypt as moved to dnscrypt-proxy.default instead * Sun Mar 23 17:27:24 2014 +1100 added 'user=' to the default configuration file * Sun Mar 23 16:59:05 2014 +1100 added 'resolvconf' package dependency (Suggests only) for the init script to update /etc/resolv.connf * Sun Mar 23 16:52:09 2014 +1100 added 'resolvconf' variablee for the init script * Sun Mar 23 11:56:48 2014 +1100 (lintian) description-synopsis-starts-with-article * Sun Mar 23 11:54:49 2014 +1100 (lintian) dnscrypt-proxy: debian-revision-should-not-be-zero * Fri Mar 21 13:43:45 2014 -0700 OKTurtles does not support DNSSEC * Fri Mar 21 13:28:21 2014 -0700 Add OkTurtles to the list of providers. * Fri Mar 21 13:20:43 2014 -0700 DNSCrypt Winclient does more than OpenDNS and CloudNS now. * Fri Mar 21 13:16:34 2014 -0700 Prepare for removal of default settings. * Wed Mar 5 17:14:11 2014 -0800 libevent sync * Wed Feb 19 06:49:31 2014 +0100 Add -Qunused-arguments for clang on macos The clang compiler provided with macosx emits warnings like: CC bufferevent.lo clang: warning: argument unused during compilation: '-I .' clang: warning: argument unused during compilation: '-I ./compat' clang: warning: argument unused during compilation: '-I ./include' clang: warning: argument unused during compilation: '-I ./include' for each file being compiled. This generates a lot of noise during compilation making it hard to see "real" errors. This patch mute those warnings. * Sun Feb 9 12:10:05 2014 -0800 Simplify hostip example * Sun Feb 9 12:04:33 2014 -0800 dnscrypt-proxy has been available in Homebrew for a while * Sun Feb 9 12:04:04 2014 -0800 Update repository. * Sun Feb 9 11:58:32 2014 -0800 Display something as LOG_NOTICE when the service starts * Sun Feb 9 11:58:22 2014 -0800 Regen hostip * Sun Feb 9 11:45:14 2014 -0800 213.154.224.3 now only accepts connections over TLS. * Sun Feb 9 11:36:26 2014 -0800 One line for the version is enough. * Sun Feb 9 11:33:51 2014 -0800 Use LOG_NOTICE level for startup/shutdown messages * Sun Feb 9 11:26:08 2014 -0800 bufferevent_pair: don't call downcast(NULL) * Thu Jan 30 13:06:04 2014 -0800 Add dnscrypt.eu IPv6 address for resolver #2 * Thu Jan 30 10:07:50 2014 -0800 Refer to Noxwizard's repository again. Merge: e47ef88 627e26a * Fri Jan 24 08:33:56 2014 -0800 Merge pull request #62 from Shnatsel/master Fix applying AppArmor profile on startupp Merge: f4c73e9 e3085a8 * Fri Jan 24 08:33:16 2014 -0800 Merge pull request #63 from Shnatsel/fix-etc-defaults Fix /etc/default in Ubuntu package * Fri Jan 24 19:34:02 2014 +0400 Link to resolver lists in /etc/default and note that specifying multiple resolvers is not yet supported * Fri Jan 24 19:29:33 2014 +0400 Revert "Add OpenNIC alternative root servers to /etc/default/dnscrypt-proxy." * Fri Jan 24 14:44:33 2014 +0400 don't fail if loading of AppArmor profile from Upstart script failed for whatever reason * Fri Jan 24 14:21:15 2014 +0400 Fix a common bug with DNSCrypt having the AppArmor profile defined but not being confined by it * Wed Jan 22 16:17:03 2014 -0800 libevent: Check if arch has the epoll_create and __NR_epoll_wait syscalls. Some architectures (like AArch64) do not have deprecated syscalls. * Wed Jan 15 11:34:02 2014 -0800 New OpenNIC servers in Fremont, CA * Mon Jan 13 14:53:54 2014 -0800 Typo * Mon Jan 13 14:52:13 2014 -0800 Link DNSCrypt Windows Service Manager * Mon Jan 13 14:47:29 2014 -0800 Update dnscrypt.eu resolvers Merge: 99ca5c8 57520bc * Mon Jan 13 14:08:55 2014 -0800 Merge pull request #56 from Kami/fix_readme_typo Fix typo in the README * Mon Jan 13 22:50:53 2014 +0100 Fix a typo, argument is called pidfile and not pid-file. * Wed Jan 1 17:09:12 2014 +0100 Year++ * Tue Dec 31 16:36:16 2013 +0100 Remove the need for droid-gcc to compile for android * Fri Dec 27 20:00:58 2013 +0100 libevent typo fixes Merge: a4cd640 5cdf433 * Wed Dec 18 13:14:44 2013 -0800 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Add OpenNIC alternative root servers to /etc/default/dnscrypt-proxy. * Wed Dec 18 13:13:15 2013 -0800 Remove references to encryption. Make it clear that dnscrypt is about authentication, not privacy. Merge: d243c7a 52d2c7c * Fri Dec 13 09:20:46 2013 -0800 Merge pull request #48 from pataquets/master Add OpenNIC alternative root servers to /etc/default/dnscrypt-proxy. * Fri Dec 13 10:54:42 2013 +0100 Add OpenNIC alternative root servers to /etc/default/dnscrypt-proxy. Merge: c3942f2 e607279 * Thu Dec 12 20:58:13 2013 -0800 Merge pull request #47 from pataquets/patch-2 Add OpenNIC alternative DNS servers * Fri Dec 13 03:12:40 2013 +0100 Add OpenNIC alternative DNS servers * Wed Dec 11 22:45:32 2013 -0800 Fix hostip default -r arg * Sat Dec 7 21:56:29 2013 -0800 Update libevent ChangeLog * Mon Nov 18 15:00:10 2013 -0800 Target iOS 7.1 * Sun Nov 17 21:10:31 2013 -0800 Remove unmaintained packages Merge: 2b48929 f0a155d * Tue Nov 5 23:24:36 2013 -0800 Merge pull request #39 from Shnatsel/master Add Debian/Ubuntu packaging Merge: 5535ff7 567c700 * Mon Nov 4 22:15:23 2013 -0800 Merge branch 'master' of github.com:jedisct1/dnscrypt-proxy * 'master' of github.com:jedisct1/dnscrypt-proxy: Gentoo ebuild: Backport patch to fix always compiling plugins Bump libsodium Gentoo ebuild to version 0.4.5 Update Gentoo ebuilds to use autotools-utils Add masters attribute to Gentoo overlay layout.conf * Mon Nov 4 22:15:06 2013 -0800 libevent: Avoid redundant invocations of init_extension_functions for IOCP * Sun Nov 3 19:14:58 2013 +0400 Added Debian/Ubuntu packaging Merge: 34034ca c71e1e4 * Fri Nov 1 09:16:05 2013 -0700 Merge pull request #38 from Strayer/gentoo-ebuild-fixes Gentoo ebuild fixes * Thu Oct 31 21:31:04 2013 +0100 Gentoo ebuild: Backport patch to fix always compiling plugins * Wed Oct 30 21:26:01 2013 +0100 Bump libsodium Gentoo ebuild to version 0.4.5 * Tue Oct 29 23:24:56 2013 +0100 Update Gentoo ebuilds to use autotools-utils * Tue Oct 29 23:20:59 2013 +0100 Add masters attribute to Gentoo overlay layout.conf Merge: 659f6cf 3bc5106 * Fri Nov 1 00:57:34 2013 -0700 Merge pull request #37 from Strayer/fix-autotools-configure-arguments Handle --disable-plugins* correctly in configure.ac * Thu Oct 31 21:06:11 2013 +0100 Handle --disable-plugins* correctly in configure.ac * Sun Oct 27 12:56:52 2013 -0700 port 2053 for the new Polish server * Sun Oct 27 12:50:16 2013 -0700 Add the new DNSCrypt service in Poland Merge: cfd5184 13e171f * Fri Oct 25 19:35:00 2013 -0700 Merge remote-tracking branch 'Shnatsel/master' * Shnatsel/master: bump AppArmor profile modification date Improve AppArmor profile: - Use @{multiarch} tunable instead of *-linux-gnu* - they are the same on my system, but using the global tunable is more robust/portable - Drop block_suspend capability because it requires Linux >= 3.5 and does not seem to be needed (as of my testing) - Allow access to libpthread and librt, extensive testing indicates it is sometimes needed (libsodium multithreading?) - Allow access to libsodium if it's installed in the system default path with multiarch support instead of just /usr/lib/ and /usr/local/lib * Fri Oct 25 19:34:14 2013 +0400 bump AppArmor profile modification date * Fri Oct 25 19:30:18 2013 +0400 Improve AppArmor profile: - Use @{multiarch} tunable instead of *-linux-gnu* - they are the same on my system, but using the global tunable is more robust/portable - Drop block_suspend capability because it requires Linux >= 3.5 and does not seem to be needed (as of my testing) - Allow access to libpthread and librt, extensive testing indicates it is sometimes needed (libsodium multithreading?) - Allow access to libsodium if it's installed in the system default path with multiarch support instead of just /usr/lib/ and /usr/local/lib * Tue Oct 22 13:06:06 2013 -0700 Update ChangeLog * Tue Oct 22 13:05:32 2013 -0700 Check for arc4random_addrandom() presence - Needed for OpenBSD-current. * Tue Oct 22 13:05:11 2013 -0700 Update man page date * Mon Oct 14 15:29:13 2013 -0700 Update hostip man page * Mon Oct 14 15:22:25 2013 -0700 Use 8.8.8.8 by default in hostip. * Fri Oct 11 09:11:36 2013 -0700 Ditch ldns-forward-after-nxdomain plugin. * Fri Oct 11 09:22:21 2013 -0700 Security: Never expose a private key in the process command-line args This was here as an alternative to using an environment variable only because the closed-source opendns user interface was (and probably still is) using that. * Wed Oct 9 21:47:43 2013 -0700 Disable dns test cases in regress_main * Wed Oct 9 21:07:06 2013 -0700 libevent: regress_dns needs a very specific DNS setup to pass. Disable it. * Sun Oct 6 18:27:39 2013 -0700 Fix provider name for OpenDNS * Tue Sep 24 13:41:52 2013 -0700 Check for inline vs __inline * Mon Sep 23 15:50:00 2013 -0700 Add DNSCrypt.eu * Wed Sep 18 00:50:48 2013 -0700 No logs * Wed Sep 18 00:48:43 2013 -0700 New public resolver in Japan, part of OpenNIC * Tue Sep 17 20:02:34 2013 -0700 Version bump * Tue Sep 17 19:46:50 2013 -0700 set-client-ip.c plugin: accept non-hex IP strings * Tue Sep 17 18:35:56 2013 -0700 Update winclient description * Sun Sep 15 14:27:47 2013 -0700 Update README-WINDOWS to mention .DLL files. * Sun Sep 15 14:13:38 2013 -0700 Don't compress executables by default, because of stupid antiviruses. * Sun Sep 15 14:12:48 2013 -0700 Change the package structure for Windows users * Sun Sep 15 13:55:29 2013 -0700 Put sbin and bin in the same basket on win32 * Sun Sep 15 13:46:13 2013 -0700 msys: actually honor prefix * Sun Sep 15 13:45:00 2013 -0700 msys: remove --disable-ssp * Sun Sep 15 13:43:51 2013 -0700 msys.sh: install in $(pwd)/dnscrypt-proxy-win32 * Sun Sep 15 13:39:49 2013 -0700 Update Win32 instructions. libsodium DLL is now shipped separately. * Sun Sep 15 12:58:36 2013 -0700 Move autoconf sync with libsodium * Sun Sep 15 12:52:08 2013 -0700 Move PROBES_SOURCE substitution * Sun Sep 15 12:50:55 2013 -0700 Sync some autoconf switches with libsodium's * Sun Sep 15 12:44:18 2013 -0700 Remove unused blocking-random autoconf switch * Sun Sep 15 12:43:30 2013 -0700 PIE is on by default, so document --disable-pie, not --enable-pie * Sun Sep 15 12:17:20 2013 -0700 Remove links to the OSX and Cydia packages. The OSX GUI ships with an old proxy, the Cydia package is dead old as well. * Fri Sep 13 22:08:25 2013 -0700 Ping timeout from Noxwizard, temporarily change dnscrypt-winclient URL * Tue Sep 10 21:59:13 2013 -0700 libevent: Avoid racy bufferevent activation The evhttp_send_reply method invokes evhttp_write_buffer with a callback that may release the underlying request object and bufferevent upon completion. This cleanup callback is invoked by the underlying bufferevent's write callback. Improperly enabling write events before referencing the bufferevent could lead to use after free and memory corruption. diff --git a/http.c b/http.c index 9b96ffb..377597e 100644 --- a/http.c +++ b/http.c @@ -383,8 +383,6 @@ evhttp_write_buffer(struct evhttp_connection *evcon, evcon->cb = cb; evcon->cb_arg = arg; - bufferevent_enable(evcon->bufev, EV_WRITE); - /* Disable the read callback: we don't actually care about data; * we only care about close detection. (We don't disable reading, * since we *do* want to learn about any close events.) */ @@ -393,6 +391,8 @@ evhttp_write_buffer(struct evhttp_connection *evcon, evhttp_write_cb, evhttp_error_cb, evcon); + + bufferevent_enable(evcon->bufev, EV_WRITE); } static void * Mon Sep 9 22:51:42 2013 -0700 Disable PIE on MingW * Wed Sep 4 00:17:30 2013 -0700 Bump Android SDK version * Mon Aug 26 23:37:36 2013 -0700 Require at least autoconf 2.65 * Mon Aug 26 23:31:19 2013 -0700 Explain that on CentOS/Fedora, ld.so.conf doesn't include /usr/local/lib * Sun Aug 18 14:31:58 2013 -0600 Update the version number in the file checking example * Sun Aug 18 14:20:33 2013 -0600 Update CloudNS resolvers Merge: 48726db d071cfb * Wed Aug 14 08:10:27 2013 -0700 Merge pull request #17 from Strayer/gentoo-fix-ebuilds Fix Gentoo ebuilds * Wed Aug 14 16:25:08 2013 +0200 Added dnscrypt-proxy-1.3.3.ebuild - bumped dnscrypt-proxy to 1.3.3 - fixed wrong digests in Manifest - removed old ebuilds which don't have official packages anymore * Wed Aug 14 16:20:29 2013 +0200 Fixed libsodium-0.4.2.ebuild - src_configure() missed econf - path of ChangeLog was wrong * Tue Aug 13 20:39:50 2013 -0700 Regen man pages * Tue Aug 13 20:38:03 2013 -0700 update ChangeLog * Tue Aug 13 20:24:25 2013 -0700 Get back to 512 bytes for DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND * Tue Aug 13 20:22:42 2013 -0700 Fix tests: apprently, www.opendns.com IPv6 address changed. * Tue Aug 13 07:30:20 2013 -0700 Update ChangeLog * Mon Aug 12 22:38:54 2013 -0700 Gradually increase the supported payload size. * Mon Aug 12 20:55:07 2013 -0700 Rename DNS_MAX_PACKET_SIZE_UDP_SEND to DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND * Mon Aug 12 19:47:25 2013 -0700 Update ChangeLog * Mon Aug 12 19:44:06 2013 -0700 Version bump * Mon Aug 12 19:43:18 2013 -0700 Explain that upgrading to 1.3.3 is highly recommended, and why. * Mon Aug 12 19:29:47 2013 -0700 Update NEWS * Mon Aug 12 19:23:35 2013 -0700 Force questions to be as big as the response can be. * Wed Aug 7 00:31:21 2013 -0700 Link to dnscrypt. Not to old GUIs. Merge: 7aba22f 9a1e8ba * Wed Aug 7 00:29:19 2013 -0700 Merge pull request #15 from Teknocrat/master Add Gentoo Ebuilds for Libsodium dependency and new dnscrypt-proxy * Mon Jul 29 23:14:47 2013 -0500 1. Remove random blocking 2. make default daemon use correct port number (53) * Mon Jul 29 19:24:57 2013 -0500 As per comments, removed ldflags autoconf should do this.. added use flag for plugins, left random.. need to check with @strayer on that one.. * Mon Jul 29 03:31:30 2013 -0500 Oops, new files needed for dnscrypt-proxy ebuild and new libsodium ebuild * Mon Jul 29 03:28:13 2013 -0500 Added new ebuilds for dnscrypt-proxy 1.3.2 bump as well as libsodium dependency * Sun Jul 21 11:55:36 2013 -0700 Merge important fixes to levent * Sat Jul 20 14:02:49 2013 -0700 libevent/win32_dealloc() : fix sizeof(pointer) vs sizeof(*pointer) * Mon Jun 10 10:38:12 2013 -0400 Document that arc4random is not a great cryptographic PRNG. * Mon Jun 10 10:33:56 2013 -0400 When we seed from /proc/sys/kernel/random/uuid, count it as success Found by Joseph Spadavecchia * Sat May 11 03:53:11 2013 +0400 Fix SEGFAULT after evdns_base_resume if no nameservers installed. If there is no nameservers installed, using evdns_base_nameserver_ip_add(), than evdns_base_resume() will SEGFAULT, because of NULL dereference in evdns_requests_pump_waiting_queue() Conflicts: evdns.c * Wed May 29 13:30:56 2013 -0400 Use windows vsnprintf fixup logic on all windows environments Previously I'd relied on mingw to provide a vsnprintf with a conformant return value. But it appears that some mingw environments don't do that. * Mon May 6 18:15:03 2013 +0400 Checking request nameserver for NULL, before using it. * Sun Jul 21 09:56:37 2013 -0700 + CloudNS * Sat Jul 20 18:14:12 2013 -0700 Enable subdir-objects * Sat Jul 20 15:45:12 2013 -0700 Update ChangeLog * Sat Jul 20 13:58:58 2013 -0700 ldns.h requires ws2tcpip.h on Windows * Sat Jul 20 12:39:03 2013 -0700 libevent/win32_dealloc() : fix sizeof(pointer) vs sizeof(*pointer) * Fri Jul 19 12:58:11 2013 -0700 Unfuck Windows build: MingW doesn't even seem to provide _gmtime_s() * Fri Jul 19 12:56:00 2013 -0700 Target iOS 7 * Fri Jul 19 12:17:58 2013 -0700 Parallel compilation is unreliable on msys * Fri Jul 19 09:59:41 2013 -0700 Bump version * Fri Jul 19 09:52:25 2013 -0700 Update NEWS * Fri Jul 19 09:41:15 2013 -0700 Update ChangeLog * Fri Jul 19 09:37:02 2013 -0700 rules->profile * Fri Jul 19 09:36:41 2013 -0700 Ship the AppArmor profile Merge: e70029a aa5411d * Sat Jul 6 19:07:57 2013 -0700 Merge pull request #11 from insanitybit/master xApparmor profile for DNSCrypt * Sat Jul 6 20:08:10 2013 -0400 Apparmor profile for DNSCrypt On systems that support apparmor this file can be dropped into /etc/apparmor.d/apparmor.profile.dnscrypt-proxy On reboot it should be active. aa-status to confirm, aa-enforce /etc/apparmor.d/apparmor.profile.dnscrypt-proxy if it doesn't enforce after reboot. * Tue Jun 25 14:25:16 2013 -0700 reword * Tue Jun 25 14:24:30 2013 -0700 Fix --test= * Tue Jun 25 14:24:00 2013 -0700 -t can now be used to specify a safety margin * Mon Jun 24 16:29:00 2013 -0700 Don't bind anything in test mode. * Mon Jun 24 16:16:39 2013 -0700 Add --test * Mon Jun 24 14:54:27 2013 -0700 Print the chosen cert validity period. * Mon Jun 24 13:48:36 2013 -0700 Update TECHNOTES * Sun Jun 23 23:33:33 2013 -0700 Explain how to check file integrity. * Sat Jun 22 21:38:21 2013 -0700 Fix typo * Sat Jun 22 21:36:46 2013 -0700 Sync Homebrew formula * Sun Jun 9 22:42:09 2013 -0700 Check that the list of supported protocol versions the client advertises is actually supported. The current proxy only supports version 2. * Sun Jun 9 19:10:01 2013 -0700 Use only portable implementations on iOS. * Sun Jun 9 12:45:06 2013 -0700 Update ChangeLog * Sun Jun 9 12:27:56 2013 -0700 Don't print "initializing for optimal performance" if we don't. * Sun Jun 9 12:19:27 2013 -0700 Add USE_ONLY_PORTABLE_IMPLEMENTATIONS * Sun Jun 9 12:19:06 2013 -0700 Disable PIE for Android builds. * Sun Jun 9 10:50:54 2013 -0700 Add mipsel-linux-static.sh to the distributed build scripts * Sat Jun 8 22:55:51 2013 -0700 Rename iPhone target to iOS, because it works fine on iPad and iPod, too. * Sat Jun 8 22:54:33 2013 -0700 Update iOS build script * Fri Jun 7 23:25:16 2013 -0700 Update Android build script to pick libsodium Merge: 64c8ed6 96e8e19 * Thu Jun 6 23:07:21 2013 -0700 Merge pull request #9 from Cofyc/master Clean libsodium submodule entry. * Fri Jun 7 13:46:01 2013 +0800 Remove .gitmodules (libsodium is not a submodule now). * Wed Jun 5 20:56:13 2013 -0700 Unfortunately, dtrace for Linux is still experimental to say the least. * Wed Jun 5 16:45:49 2013 -0700 Check for dtrace in /usr/local/sbin and /usr/sbin just in case these are not in $PATH, and enable dtrace on Linux, too. * Mon Jun 3 12:41:53 2013 -0700 `make -j2 check` in the `src/libsodium` is not required any more. Thanks to binaryparadox for spotting this. * Fri May 31 09:41:01 2013 -0700 Optimized implementations are available. * Fri May 31 01:05:24 2013 -0700 dist-build/osx.sh now produces an universal binary * Fri May 31 00:04:47 2013 -0700 Pass compilation environment variables to libevent's autoconf script through ac_configure_args in order to unfuck compilation on FreeBSD when CFLAGS have been set prior to compilation. * Thu May 30 16:48:51 2013 -0700 Statically linking libsodium with -static -Bdynamic is not portable. Screw it. Merge: f654fc3 13c082d * Thu May 30 14:01:03 2013 -0700 Merge branch 'ext-sodium' * ext-sodium: Statically link libsodium for now Update .travis.yml to compile and install libsodium * Thu May 30 14:00:42 2013 -0700 Statically link libsodium for now * Thu May 30 12:15:35 2013 -0700 The Windows GUI by OpenDNS looks even more abandoned than other GUIs. * Thu May 30 12:15:02 2013 -0700 All the currently available GUIs only work with OpenDNS :( * Thu May 30 09:38:39 2013 -0700 Update .travis.yml to compile and install libsodium * Sun May 26 00:17:52 2013 -0700 Mention that libsodium is now required * Sun May 26 00:15:33 2013 -0700 Remove built-in libsodium * Thu May 23 00:42:00 2013 -0700 Sync libsodium Merge: 41c52ff faa5cf7 * Thu May 16 14:03:07 2013 -0700 Merge pull request #4 from Strayer/gentoo_ebuild_v1.3.0 Gentoo ebuild v1.3.0 * Thu May 16 11:16:54 2013 -0700 Check for ldns presence using ldns_wire2pkt(), not something that requires SSL. * Thu May 16 19:19:26 2013 +0200 Bumped Gentoo ebuild to 1.3.0 * Thu May 16 19:18:13 2013 +0200 Fixed gentoo ebuild package links * Sat May 11 21:32:11 2013 -0700 Display an info message before calling crypto_init(). * Sat May 11 11:23:52 2013 -0700 Export CC, LD, etc. for linux/mips/uclibc. * Sat May 11 11:20:12 2013 -0700 Add a compilation script to build a static Linux/Mips binary Which means no plugins, though. And this is sad. * Sat May 11 11:04:41 2013 -0700 Move sodium_init() call after reading the options. * Sat May 11 09:59:43 2013 -0700 No need to define CROSS_COMPILING any more. Twas for the libuv/nacl days. * Sat May 4 13:48:39 2013 -0700 Link external libsodium if installed. * Thu May 2 00:17:41 2013 -0700 Sodium doc update * Sun Apr 28 09:57:55 2013 -0700 Sync libsodium, for fenv.h checks * Sat Apr 27 17:15:11 2013 -0700 Sodium 0.4.1 final * Sat Apr 27 13:16:55 2013 -0700 Wipe OPENDNS_DEVICE_ID environment variable. * Sat Apr 27 13:10:45 2013 -0700 Do not recommend supplying the secret on the command-line ever. At least, use OPENDNS_DEVICE_ID for that. * Sat Apr 27 11:47:16 2013 -0700 Sodium up * Sat Apr 27 11:15:45 2013 -0700 Bump Android API to Gingerbread (because... seriously...) But downgrade the toolchain to 4.3.3 (or else it blows up, at least on OSX) * Sat Apr 27 10:33:35 2013 -0700 Sodium update * Sat Apr 27 09:26:06 2013 -0700 Don't ignore *.s * Thu Apr 25 23:39:12 2013 -0700 Move build status up * Thu Apr 25 23:38:14 2013 -0700 Add build status * Thu Apr 25 23:32:59 2013 -0700 Let Travis build dnscrypt with plugins support * Thu Apr 25 23:26:25 2013 -0700 -Wbounded is nice, but clang reports the same thing nowadays. * Thu Apr 25 23:07:21 2013 -0700 Add before_script for Travis * Thu Apr 25 22:57:29 2013 -0700 Bump Android NDK version * Thu Apr 25 22:53:40 2013 -0700 Sodium update * Thu Apr 25 14:45:52 2013 -0700 Switch to the read-only reference to libsodium * Wed Apr 24 20:45:45 2013 -0700 Sync * Wed Apr 24 20:41:25 2013 -0700 Import .travis.yml * Wed Apr 24 13:52:57 2013 -0700 Ship Sodium 0.4 * Wed Apr 24 08:49:20 2013 -0700 Sodium update * Tue Apr 23 20:51:27 2013 -0700 Use sodium_memcmp() instead of a private version. * Mon Apr 22 13:24:54 2013 -0700 Sync libsodium * Mon Apr 22 13:24:43 2013 -0700 Disable ssp by default on MingW * Mon Apr 22 13:01:58 2013 -0700 Update NEWS & ChangeLog * Mon Apr 22 11:25:15 2013 -0700 Sync sodium * Mon Apr 22 10:37:18 2013 -0700 Sodium update * Fri Apr 19 16:09:46 2013 +0200 Sync libsodium. Now with curve25519_donna_c64 * Fri Apr 19 14:26:17 2013 +0200 sodium_shutdown() is gone * Fri Apr 19 11:24:21 2013 +0200 Add missing #include for SIZE_MAX * Thu Apr 18 19:16:23 2013 +0200 sodium_init() doesn't accept options any more. * Thu Apr 18 15:39:02 2013 +0200 Sync libsodium * Thu Apr 18 14:32:03 2013 +0200 Remove a useless function call * Thu Apr 18 14:30:02 2013 +0200 Call sodium_init() / sodium_shutdown() * Thu Apr 18 13:58:31 2013 +0200 Just use randombytes_salsa20_implementation * Thu Apr 18 11:07:20 2013 +0200 Pass the entire ac_config_args content to other autoconf scripts * Wed Apr 17 21:46:12 2013 +0200 Use Android toolchain 4.6 * Wed Apr 17 09:00:08 2013 +0200 Save a line * Wed Apr 17 08:57:51 2013 +0200 Add a new --loglevel option to change the log verbosity. * Wed Apr 17 08:44:16 2013 +0200 Update libsodium * Wed Apr 17 08:33:10 2013 +0200 Redefine log levels for Win32 * Fri Apr 12 08:24:29 2013 +0200 github.com -> github.io * Tue Apr 2 20:20:09 2013 -0700 Sync libsodium * Tue Apr 2 20:19:11 2013 -0700 Pass a few extra autoconf options form the main autoconf script to libsodium's * Sun Mar 31 13:40:25 2013 -0700 Typo * Mon Mar 25 11:59:11 2013 -0700 Update ChangeLog * Mon Mar 25 11:58:36 2013 -0700 Yay for better performance * Mon Mar 25 11:51:07 2013 -0700 Sync libsodium, with the ref10 implementation of ed25519 * Mon Mar 18 23:32:44 2013 -0700 sync libsodium * Mon Mar 18 21:52:08 2013 -0700 Farewell, dnscrypt_memzero(). Sodium provides sodium_memzero() to do that. * Sun Mar 17 16:08:33 2013 -0700 Add libsodium as a submodule * Sun Mar 17 16:08:01 2013 -0700 Remove libsodium copy * Sun Mar 17 16:00:40 2013 -0700 Sync libsodium * Sun Mar 17 15:55:27 2013 -0700 Add test-script.sh * Sun Mar 17 13:11:42 2013 -0700 Resurrect example-ldns-opendns-set-client-ip, it's very useful for support * Mon Mar 11 22:27:37 2013 -0700 Remove -fcatch-undefined-c99-behavior, will be replaced by -fsanitize=integer * Fri Mar 8 09:07:36 2013 -0800 Define HAVE_* and CROSS_COMPILING to 1 instead of just defining them. * Fri Mar 1 15:47:57 2013 -0800 Fix include path to libsodium * Fri Mar 1 14:11:39 2013 -0800 Bump fpm package version * Tue Feb 19 13:38:37 2013 -0800 libevent update to b618204216235d5998080c659c8ad53185fdf206 * Fri Feb 8 01:26:47 2013 -0800 Back to a stable Xcode version * Fri Feb 8 01:24:15 2013 -0800 Update Android NDK to r8d * Fri Feb 8 01:12:38 2013 -0800 Update NEWS * Fri Feb 8 01:09:08 2013 -0800 Update .gitignore * Fri Feb 8 01:07:07 2013 -0800 Update ChangeLog * Fri Feb 8 01:06:07 2013 -0800 Rename libevent to libevent-modified to avoid confusion. Our version of libevent ships with some changes required for dnscrypt-proxy to work. These will eventually be submitted upstream after libevent 2.1 gets released. * Mon Feb 4 23:50:00 2013 -0800 libsodium already provides crypto_box_MACBYTES * Mon Feb 4 23:46:17 2013 -0800 Next will be 1.3.0. * Mon Feb 4 23:41:49 2013 -0800 Switch to libsodium. * Mon Feb 4 14:42:17 2013 -0800 Paranoia * Mon Jan 28 14:14:46 2013 -0800 Update ChangeLog * Mon Jan 28 14:10:26 2013 -0800 autoconf 2.68 broke $(top_srcdir) for tests * Mon Jan 28 14:03:46 2013 -0800 AM_CONFIG_HEADER -> AC_CONFIG_HEADER * Mon Jan 28 13:58:42 2013 -0800 Update ChangeLog * Mon Jan 28 13:57:35 2013 -0800 Update iphone.sh * Mon Jan 28 13:57:21 2013 -0800 libevent c322c2077e2d16f64ed3a90f74ad714842600624 * Mon Jan 21 20:50:20 2013 -0800 Add -Wsometimes-uninitialized * Mon Jan 21 19:23:40 2013 -0800 Check for HAVE_SECUREZEROMEMORY at compile-time. * Mon Jan 21 11:54:19 2013 -0800 Use SecureZeroMemory() on Windows * Sun Jan 20 10:05:27 2013 -0800 Update ChangeLog * Sun Jan 20 09:51:46 2013 -0800 Update URL. Github downloads are no more. * Sat Jan 19 16:45:49 2013 -0800 Remove cpp wrappers * Sat Jan 19 16:41:39 2013 -0800 Drop PROTOTYPES.cpp * Sun Jan 6 21:49:09 2013 -0800 Fix markdown link * Sun Jan 6 21:47:35 2013 -0800 Add a link to the home page * Sun Jan 6 21:43:49 2013 -0800 Mention dnscrypt-wrapper * Sun Jan 6 21:40:52 2013 -0800 Next version will be 1.2.1, I suppose. * Sun Jan 6 21:38:39 2013 -0800 Use size_t for TXT total size, remove extra parenthesis. Merge: 0b31df8 3dc4690 * Sun Jan 6 21:29:40 2013 -0800 Support merging txt strings into one. Some dns managers split long binary data into more than one strings (e.g. linode.com) Merge remote-tracking branch 'cofyc/merge_txts' By Yecheng Fu * Sun Jan 6 20:47:51 2013 -0800 Update OSX client link. * Wed Jan 2 08:56:29 2013 -0800 levent: configure.in files have been deprecated for a while. Rename. * Wed Jan 2 08:50:03 2013 -0800 A global COPYING file is enough * Tue Jan 1 00:37:41 2013 -0800 2013 * Sat Dec 22 17:14:04 2012 -0800 levent: Avoid double-close on getsockname error in evutil_ersatz_socketpair Avoid leaking fds on evconnlistener with no callback set * Fri Dec 7 08:31:02 2012 -0800 levent - Fix compilation with WIN32_HAVE_CONDITION_VARIABLES enabled. * Thu Nov 22 02:34:32 2012 +0800 improve: support merging txt strings into one some dns manager split long binary data into more than one strings (e.g. linode.com) * Mon Nov 19 09:10:24 2012 -0800 Update libevent to 2.0.21-stable-dev. * Thu Nov 15 22:15:32 2012 -0800 Sync libevent2 - fix OpenSSL renegotiation test with old OpenSSL version. Merge: c128bd9 ce9b890 * Tue Nov 13 14:17:21 2012 -0800 Merge remote-tracking branch 'origin/master' * origin/master: Added profile/repo_name so the packages/gentoo folder can be used as a portage overlay Updated Gentoo ebuild for v1.2.0 Merge: 20e9dd1 57e0296 * Tue Nov 13 14:12:12 2012 -0800 Merge pull request #38 from Strayer/gentoo_ebuild_v1.2.0 Bumped Gentoo ebuild to v1.2.0 * Tue Nov 13 22:31:20 2012 +0100 Added profile/repo_name so the packages/gentoo folder can be used as a portage overlay * Tue Nov 13 21:33:10 2012 +0100 Updated Gentoo ebuild for v1.2.0 - updated conf and init script according to parameter changes in v1.1.0 * Sat Nov 3 12:46:52 2012 -0700 Add a build script for 32-bit versions of OSX binaries. * Sat Nov 3 10:34:07 2012 -0700 levent updates, so that 64-bit versions for Windows can be built. Merge: 23eaeeb 9f7c132 * Sun Oct 28 10:11:45 2012 -0700 Merge remote-tracking branch 'marguerite/master' * marguerite/master: fix a hang-on-boot bug in systemd. update opensuse license * Sun Oct 28 09:56:20 2012 -0700 libevent2 updates. * Wed Oct 24 01:01:15 2012 +0800 fix a hang-on-boot bug in systemd. update opensuse license * Sun Oct 21 22:21:21 2012 -0700 Add Marguerite Su to the THANKS file. * Sun Oct 21 22:17:20 2012 -0700 Take the systemd service definition off the root directory. * Sun Oct 21 22:16:56 2012 -0700 Minor tweaks to the OpenSuSE description. Merge: f0b3120 857f0cc * Sun Oct 21 22:05:41 2012 -0700 Merge pull request #36 from marguerite/master add opensuse package, and systemd service for dnscrypt * Mon Oct 22 12:59:47 2012 +0800 add opensuse pacages, systemd servce * Fri Oct 19 16:35:07 2012 -0700 The OSX GUI is mainly a collection of shell scripts, nowadays. * Wed Oct 17 22:54:28 2012 -0700 Insame => insane * Sat Oct 13 22:13:25 2012 -0700 Remove OpenBSD port, since it is now in the official ports tree. * Fri Oct 12 08:29:42 2012 -0700 Change the blurb to something closer to the awesome summary by sthen@ * Thu Oct 11 18:39:41 2012 -0700 Update the Homebrew formula to 1.2.0 * Thu Oct 11 18:31:12 2012 -0700 Update the OpenBSD package to 1.2.0 * Thu Oct 11 10:12:04 2012 -0700 Mention that DCP_SYNC_FILTER_RESULT_DIRECT is only for a pre-filter. * Thu Oct 11 08:23:37 2012 -0700 Update ChangeLog * Wed Oct 10 22:33:49 2012 -0700 Set the RA flag in direct responses. * Wed Oct 10 21:53:00 2012 -0700 Set the QR bit when sending an empty AAAA reply. * Wed Oct 10 21:49:25 2012 -0700 Log short UDP replies * Wed Oct 10 13:28:26 2012 -0700 Group Windows changes together. * Wed Oct 10 13:27:37 2012 -0700 Whitespace. * Wed Oct 10 13:26:55 2012 -0700 Update link * Wed Oct 10 13:25:55 2012 -0700 1.2.0 * Wed Oct 10 13:22:28 2012 -0700 Document that gcc 3.4.6 with a Mips target produces broken code with -Os * Wed Oct 10 13:14:03 2012 -0700 Add missing return statement in the ldns-blocking example. * Wed Oct 10 12:19:19 2012 -0700 Update NEWS/ChangeLog * Wed Oct 10 12:15:13 2012 -0700 The plugin API has changed, 1.1.1 sounds weird, so let's go 1.2.0. * Wed Oct 10 11:51:24 2012 -0700 Add a new plugin to return an empty response to AAAA queries. * Tue Oct 9 23:12:41 2012 -0700 Update ChangeLog * Tue Oct 9 23:12:06 2012 -0700 Document the new DIRECT return code for pre-filters. * Tue Oct 9 23:06:08 2012 -0700 Well, not all plugins have been removed. * Tue Oct 9 22:58:09 2012 -0700 Document the direct mode. * Tue Oct 9 22:55:11 2012 -0700 Implement direct mode for TCP. * Tue Oct 9 22:42:07 2012 -0700 Start sending direct replies. * Tue Oct 9 17:54:35 2012 -0700 Prepare proxy code for DCP_SYNC_FILTER_RESULT_DIRECT * Tue Oct 9 17:37:25 2012 -0700 Bump API version minor. * Tue Oct 9 17:36:39 2012 -0700 Prepare for DCP_SYNC_FILTER_RESULT_DIRECT. * Tue Oct 9 17:11:26 2012 -0700 Indent * Tue Oct 9 16:51:56 2012 -0700 Include Windows quirks in NaCl test, too. * Tue Oct 9 13:47:59 2012 -0700 Spaces, blah. Merge: de7bb89 854e2c9 * Tue Oct 9 13:45:48 2012 -0700 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: Detect things like C:/x/y and C:\x\y as absolute paths to Windows plugins. * Tue Oct 9 10:28:18 2012 -0700 Resurect the deviceid plugin, as OpenDNS folks really need it. * Tue Oct 9 10:28:18 2012 -0700 Detect things like C:/x/y and C:\x\y as absolute paths to Windows plugins. * Tue Oct 9 07:54:48 2012 -0700 Revert "ldns requires socklen_t but Win32 doesn't have it." This has been fixed in ldns 1.6.14. * Mon Oct 8 23:53:19 2012 -0700 Update URL * Mon Oct 8 23:51:40 2012 -0700 Missing "the". * Mon Oct 8 23:43:28 2012 -0700 Check ldns_resolver_new_frm_file() return code. * Mon Oct 8 23:42:54 2012 -0700 If a new release ever sees the light, it will be 1.1.1. * Mon Oct 8 23:29:45 2012 -0700 Update ChangeLog * Mon Oct 8 23:29:28 2012 -0700 Update NEWS * Mon Oct 8 23:28:56 2012 -0700 Update URL. * Mon Oct 8 23:18:47 2012 -0700 Off-topic, but document how to compile ldns on Windows. * Mon Oct 8 21:41:49 2012 -0700 ldns requires socklen_t but Win32 doesn't have it. So, define it on Win32. * Sat Oct 6 09:54:22 2012 -0700 Remove OpenDNS-related plugins. * Sat Oct 6 09:36:02 2012 -0700 Remove some sample plugins. * Fri Oct 5 10:34:35 2012 -0700 Remove UDP_REQUEST_NO_RETRIES. Always support retries. * Wed Oct 3 21:27:23 2012 -0700 Enforce a 2 second timeout. * Wed Oct 3 16:50:20 2012 -0700 forward-after-nxdomain: allow 1 extra byte for the response if needed. * Wed Oct 3 16:05:45 2012 -0700 Initial forward-after-nxdomain plugin implementation. * Tue Oct 2 20:24:38 2012 -0700 Update ChangeLog * Sat Sep 29 22:38:06 2012 +0200 Thanks, RotBlitz * Sat Sep 29 22:25:01 2012 +0200 People are still running dnscrypt on old CPUs. Compile for Pentium 2 on Windows. * Sat Sep 29 17:05:05 2012 +0200 Trim down optimization flags for Windows * Wed Sep 26 11:26:07 2012 +0200 ChangeLog updates * Tue Sep 25 21:00:12 2012 +0200 Stick to PACKAGE_STRING for the version, it's easier to parse. * Tue Sep 25 19:44:44 2012 +0200 Remove the FreeBSD package. * Tue Sep 25 19:35:06 2012 +0200 Unfuck pkgsrc packages on Dragonfly BSD. * Tue Sep 25 19:19:44 2012 +0200 Update the NetBSD / Dragonfly BSD port. Plugin-less for now. * Tue Sep 25 19:01:15 2012 +0200 Factorize dependencies * Tue Sep 25 17:51:25 2012 +0200 PERMIT_PACKAGES => Yes * Tue Sep 25 17:48:19 2012 +0200 Major update to the OpenBSD package. Build plugins as a subpackage. * Tue Sep 25 16:03:23 2012 +0200 Improve the Homebrew formula after adamv@ review * Tue Sep 25 15:35:27 2012 +0200 Enable plugins in the Linux packages * Tue Sep 25 15:31:26 2012 +0200 Update fpm port * Tue Sep 25 15:17:24 2012 +0200 Switch from tar-pax to tar-ustar because OpenBSD's tar(1) is confused with POSIX archives. * Tue Sep 25 15:07:55 2012 +0200 Update the OpenBSD port to 1.1.0 * Tue Sep 25 13:55:34 2012 +0200 Lion -> Mountain Lion * Mon Sep 24 23:48:57 2012 +0200 Allow reading an OpenDNS device id from an environment variable named OPENDNS_DEVICE_ID as an alternative to giving it as an argument to the opendns_deviceid plugin. This information shouldn't be visible in the process name. * Mon Sep 24 23:03:18 2012 +0200 Update the Homebrew package. * Mon Sep 24 22:48:52 2012 +0200 Use tar-pax because some plugins files names are > 99 chars long. * Mon Sep 24 19:55:01 2012 +0200 Don't use brackets in doxygen doc except for headers. * Mon Sep 24 17:25:18 2012 +0200 ChangeLog * Mon Sep 24 17:24:40 2012 +0200 Enable support for plugins in Windows builds. * Mon Sep 24 17:20:08 2012 +0200 Require plugins to mention DCPLUGIN_MAIN(__FILE__); * Mon Sep 24 15:58:58 2012 +0200 Update the ChangeLog, again. * Mon Sep 24 15:56:18 2012 +0200 Android and iPhone build scripts have been moved. * Mon Sep 24 15:53:57 2012 +0200 Update ChangeLog * Mon Sep 24 15:53:38 2012 +0200 Mention the example plugins. * Mon Sep 24 15:28:25 2012 +0200 Can you seriously expect Windows to implement putc_unlocked()? LOL. * Mon Sep 24 15:04:32 2012 +0200 Ensure that assertions are always turned on. * Mon Sep 24 14:06:55 2012 +0200 Add missing return statement. * Mon Sep 24 13:55:07 2012 +0200 Update the ChangeLog * Mon Sep 24 13:54:24 2012 +0200 Spaces vs tabs. Fu fu fu fu fuuuuuuuu * Mon Sep 24 13:52:31 2012 +0200 libevent: arc4random_buf() doesn't return a value. Fix ev_arc4random_buf(). * Sun Sep 23 21:49:27 2012 +0200 logging plugin: display a dot for a query for dot (duh!). * Sun Sep 23 21:45:48 2012 +0200 Zap the final dot in a name before doing pattern matching on it. * Sun Sep 23 21:31:56 2012 +0200 Don't use ldns wildcard matching, match * everywhere instead. People want to filter things like *xxx*, so let them do that. * Sun Sep 23 18:23:50 2012 +0200 Init the locale. * Sat Sep 22 23:14:05 2012 +0200 example-logging: bump the minimal required length up. * Sat Sep 22 23:11:46 2012 +0200 Update the ChangeLog * Sat Sep 22 23:05:53 2012 +0200 Add a new plugin that logs queries. * Sat Sep 22 21:56:09 2012 +0200 Add WARNING for plugins. * Sat Sep 22 21:46:56 2012 +0200 Don't include the full path to a plugin in examples. * Sat Sep 22 21:43:18 2012 +0200 Use strcasecmp() in order to caselessly compare IPv6 addresses. * Sat Sep 22 21:39:09 2012 +0200 Rewrite the ldns-blocking plugin, so that it can block any name and IP address. This plugin can be very useful in order to block ads and buggy replies. * Wed Sep 19 17:35:51 2012 +0200 Move build scripts to a dist-build directory, add one for osx. * Wed Sep 19 15:40:57 2012 +0200 Update ChangeLog * Wed Sep 19 15:38:55 2012 +0200 Plugins can now be loaded from a default directory ($pkglibdir). In addition, a new configure flag, --enable-plugins-root, disallows loading plugins outside this directory. * Tue Sep 18 04:05:18 2012 +0200 README-WINDOWS: ...\dnscrypt-proxy\Parameters is confusing, as "parameters" can be understood as a variable. So, add an example. Explain how plugins should be specified by the way. * Tue Sep 18 04:04:58 2012 +0200 Indentatino :) * Sun Sep 16 21:16:08 2012 +0200 A new configure flag, --disable-pie, can disable position-independent executables. A bad idea, but required by some OS. * Thu Sep 13 16:10:41 2012 -0700 Merge 1.1.0 changelog, since there will probably be no more RC. * Thu Sep 13 15:53:05 2012 -0700 Import example-ldns-blocking.c * Thu Sep 13 13:41:33 2012 -0700 Update ChangeLog * Thu Sep 13 13:30:16 2012 -0700 -fdata-sections -ffunction-sections doesn't seem very useful on Windows * Thu Sep 13 13:16:22 2012 -0700 Having new lines in flags is a bad idea. * Thu Sep 13 13:13:16 2012 -0700 Import a script to build the proxy on Win32 * Thu Sep 13 12:42:32 2012 -0700 Silent MingW. * Thu Sep 13 11:59:51 2012 -0700 Update ChangeLog * Thu Sep 13 11:59:28 2012 -0700 Introduce --enable-relaxed-plugins-permissions * Thu Sep 13 11:42:07 2012 -0700 If the proxy is run as root, refuse to load a plugin not owned by root. Yes, it's still totally racy, and not super useful, but better than nothing. * Thu Sep 13 11:31:55 2012 -0700 Xcode 4.5-GM is just called Xcode * Thu Sep 13 11:25:34 2012 -0700 Update ChangeLog * Thu Sep 13 11:09:11 2012 -0700 Use Xcode 4.5 * Thu Sep 13 10:52:20 2012 -0700 Pick up the new name for the blocking plugin * Thu Sep 13 10:51:33 2012 -0700 Rename example-ldns example-ldns-blocking * Thu Sep 13 08:59:19 2012 -0700 1.1.0-RC1 also fixed lookups of multiple TXT records, and thus handling of multiple certificates. * Thu Sep 13 08:55:41 2012 -0700 Finally, the plugin API has been kinda documented. * Thu Sep 13 08:40:25 2012 -0700 Add a link to the API documentation. * Thu Sep 13 08:34:46 2012 -0700 Quote * Thu Sep 13 08:28:09 2012 -0700 More doc on plugins * Thu Sep 13 01:05:31 2012 -0700 Return REFUSED instead of NXDOMAIN when we get a blacklisted IP in a record of a response. It makes more sense, and OpenDNS can return the same IP for different reasons, not only NXDOMAIN. * Wed Sep 12 22:54:35 2012 -0700 Start documenting plugins * Wed Sep 12 22:54:20 2012 -0700 Untab README-WINDOWS * Wed Sep 12 22:17:42 2012 -0700 Update NEWS * Wed Sep 12 21:12:58 2012 -0700 Update ChangeLog Merge: f568bce beac641 * Wed Sep 12 20:39:23 2012 -0700 Merge branch 'master' of https://github.com/jedisct1/dnscrypt-proxy * 'master' of https://github.com/jedisct1/dnscrypt-proxy: In sendto_with_retry(), free()ing the timer beforehand is a good idea but turning that in a different use-after-free is not. Initialize dcps at the right place. I'm just totally unable to write a single line of code when I am at the office. The sendto_retry timer should be free()d before the callback, or else we end up with a big bad use after free and an even bigger and badder double free. Initialize dcps before using it, duh. It used to make virtually any plugin crash before it even had a chance to load on Linux, and on platforms it used to work on, it worked by accident. Reported by @transitorykris, confirmed by Valgrind. * Wed Sep 12 20:32:07 2012 -0700 Update ChangeLog * Wed Sep 12 20:31:35 2012 -0700 Sync libevent, fix two memory leaks in evdns. * Wed Sep 12 22:19:42 2012 +0200 In sendto_with_retry(), free()ing the timer beforehand is a good idea but turning that in a different use-after-free is not. * Wed Sep 12 21:00:32 2012 +0200 Initialize dcps at the right place. I'm just totally unable to write a single line of code when I am at the office. * Wed Sep 12 20:55:05 2012 +0200 The sendto_retry timer should be free()d before the callback, or else we end up with a big bad use after free and an even bigger and badder double free. * Wed Sep 12 20:29:40 2012 +0200 Initialize dcps before using it, duh. It used to make virtually any plugin crash before it even had a chance to load on Linux, and on platforms it used to work on, it worked by accident. Reported by @transitorykris, confirmed by Valgrind. * Tue Sep 11 21:36:26 2012 -0700 The set-client-ip plugin also allows applying network settings when using IPv6 * Tue Sep 11 21:06:51 2012 -0700 set-client-ip: randomize the fodder * Tue Sep 11 20:50:58 2012 -0700 More data set-client-ip needs. * Tue Sep 11 19:13:34 2012 -0700 The set-client-ip plugin needs more data in order to properly apply the network settings. * Mon Sep 10 13:12:47 2012 -0700 Improve documentation for the set-client-ip plugin. * Mon Sep 10 12:57:29 2012 -0700 Update ChangeLog. * Mon Sep 10 12:51:46 2012 -0700 More descriptions * Mon Sep 10 12:47:46 2012 -0700 More descriptions * Mon Sep 10 12:33:10 2012 -0700 Document example-ldns-opendns-deviceid * Mon Sep 10 10:51:45 2012 -0700 Add a simple example plugin to change the client IP when talking to OpenDNS resolvers. * Sun Sep 9 22:40:07 2012 -0700 Thank you, Black Roland! * Sun Sep 9 11:06:55 2012 -0700 Move the GUIs section up * Sun Sep 9 09:58:05 2012 -0700 Reorder the Android build script so that TARGET_TOOLCHAIN_VERSION is defined before it is used :) * Sun Sep 9 09:49:20 2012 -0700 Add Android * Sun Sep 9 09:42:23 2012 -0700 That was --resolver-port * Sun Sep 9 09:41:35 2012 -0700 Mention that --local-port and --remote-port are gone for good. * Sun Sep 9 00:12:12 2012 -0700 Don't lie about why TCP is slow. * Thu Sep 6 17:42:15 2012 -0700 Dash * Thu Sep 6 17:41:57 2012 -0700 Update ChangeLog. It's 1.1.0-rc1 for now. * Thu Sep 6 17:35:35 2012 -0700 Bump revision to 1.1.0rc1 * Thu Sep 6 13:20:04 2012 -0700 Don't cast uint32_t values to print them. That's retarded. * Thu Sep 6 13:16:40 2012 -0700 Grammar * Thu Sep 6 10:55:18 2012 -0700 Update ChangeLog/NEWS. * Thu Sep 6 10:47:52 2012 -0700 Rename the .plist file. * Thu Sep 6 10:35:03 2012 -0700 Use plugin_long_description() in the null plugin, too. * Thu Sep 6 10:30:18 2012 -0700 Add dcplugin_long_description() * Thu Sep 6 10:16:01 2012 -0700 Add basic probes for filters. * Thu Sep 6 00:35:35 2012 -0700 Retabify, try to match the initial code style. * Thu Sep 6 00:17:32 2012 -0700 Update ChangeLog * Thu Sep 6 00:16:19 2012 -0700 Check the RR length before any parsing, even if it's redundant. * Wed Sep 5 23:59:08 2012 -0700 evdns: store more than 1 TXT record. * Wed Sep 5 23:58:46 2012 -0700 Don't assume that only one TXT record will be received. * Tue Sep 4 00:30:14 2012 -0700 Add libltdl to SUBDIRS, if plugins are enabled. * Mon Sep 3 23:35:24 2012 -0700 80 cols * Mon Sep 3 23:13:02 2012 -0700 Windows nits * Mon Sep 3 22:42:13 2012 -0700 Add Plugins to the list of Windows registry keys, before I forget. * Mon Sep 3 22:36:24 2012 -0700 Parse the "Plugins" key if there is one in the Windows registry. * Mon Sep 3 22:09:15 2012 -0700 Windows: implement windows_service_registry_read_multi_sz() * Mon Sep 3 19:14:15 2012 -0700 Return NXDOMAIN for an IP that actually needs it. * Mon Sep 3 17:21:24 2012 -0700 Display the actual error when a plugin can't be loaded. * Mon Sep 3 17:12:14 2012 -0700 Remove example-ldns-opendns-bypass * Mon Sep 3 17:08:37 2012 -0700 Display the plugin description if we have one. * Mon Sep 3 16:49:46 2012 -0700 Check that a plugin either belongs to root, or would be writeable by whoever runs the current process (or at least, by whoever can write to the fs). It's not very useful, it's racy, but it's better than nothing. * Mon Sep 3 13:04:17 2012 -0700 Wipe the client nonce after uncurving a reply. Useful for debugging. * Mon Sep 3 12:58:23 2012 -0700 Add tcp post-filters. * Sun Sep 2 22:13:27 2012 -0700 No more dns_packet_len, stay consistent between udp_ & tcp_request.c * Sun Sep 2 22:13:01 2012 -0700 Regen man pages. * Sun Sep 2 21:15:18 2012 -0700 Add prefilters for TCP. * Sun Sep 2 15:32:55 2012 -0700 Don't use max_packet_size. When using TCP, the packet size is not the data size, so, use the 'packet' terminology to actually mean a packet size, and something different to mean a DNS packet. No change to the compiled code, but it will help to make things more consistent between udp_request.c and tcp_request.c. * Sun Sep 2 15:23:06 2012 -0700 Don't use dns_packet*, use dns_(query|reply)* in udp_request.c just like in tcp_request.c * Sun Sep 2 14:21:52 2012 -0700 The default resolver is 208.67.220.220, not .222.222 * Sun Sep 2 14:18:56 2012 -0700 The OSX GUI probably works on 32-bit systems now, and the OpenDNS GUI for Windows is apparently labeled "OpenDNSCrypt". * Sun Sep 2 14:18:45 2012 -0700 Upcase * Wed Aug 29 21:36:54 2012 -0700 Add an optional function for describing a plugin. * Wed Aug 29 21:36:43 2012 -0700 Rename sample plugins * Mon Aug 27 15:42:17 2012 -0700 Rename example-ldns-2 to example-ldns-opendns-deviceid and add the ability to provide a device id on the command line. * Mon Aug 27 11:04:07 2012 -0700 Add two new OpenDNS-specific example plugins * Sun Aug 26 09:55:42 2012 -0700 Regen dnscrypt-proxy man page. * Sun Aug 26 09:55:30 2012 -0700 Update ChangeLog * Fri Aug 24 19:55:48 2012 -0700 Shrink the default max payload size to 1252 bytes. * Fri Aug 24 08:47:52 2012 -0700 Update libevent to 2.0.20 * Mon Aug 20 20:31:54 2012 -0700 Include the port number in default IPs. Restore support for specifying IP addresses without ports. * Tue Aug 21 10:48:36 2012 -0700 Update email. * Fri Aug 17 22:52:24 2012 -0700 Don't use backtrace on Bitrig * Thu Aug 16 15:37:58 2012 -0700 -P and -t are gone for good. * Tue Aug 7 09:06:03 2012 -0700 Typo * Mon Aug 6 10:57:49 2012 -0700 DP4 Merge: 1128c06 357d1be * Fri Aug 3 15:10:00 2012 -0700 Merge branch '1.0.x' * 1.0.x: livevent: Add explicit AC_PROG_SED to configure.in so all autoconfs will expose $(SED) + avoid unused variable declaration. When running the proxy as a Windows service, options have to be specified using the registry. Bump dnscrypt-proxy homebrew formula * Fri Aug 3 15:07:56 2012 -0700 livevent: Add explicit AC_PROG_SED to configure.in so all autoconfs will expose $(SED) + avoid unused variable declaration. * Wed Aug 1 23:21:01 2012 -0700 When running the proxy as a Windows service, options have to be specified using the registry. * Tue Jul 31 12:41:21 2012 -0700 Actually install LTDL * Tue Jul 31 12:08:44 2012 -0700 Bump dnscrypt-proxy homebrew formula Merge: 0016faf 18e9180 * Tue Jul 31 11:46:28 2012 -0700 Merge branch '1.0.x' * 1.0.x: Export droid-gcc variables fpm -> 1.0.1 Update ChangeLog If an evdns_getaddrinfo timeout happens while pending_cb is set, and a callback is about to run, but we get a call to evdns_getaddrinfo_gotresolve before it finishes. libevent dc3207767d4f06b31 * Tue Jul 31 11:30:42 2012 -0700 Export droid-gcc variables * Tue Jul 31 11:07:24 2012 -0700 fpm -> 1.0.1 * Tue Jul 31 11:05:11 2012 -0700 Update ChangeLog * Tue Jul 31 10:55:50 2012 -0700 If an evdns_getaddrinfo timeout happens while pending_cb is set, and a callback is about to run, but we get a call to evdns_getaddrinfo_gotresolve before it finishes. libevent dc3207767d4f06b31 * Tue Jul 31 10:55:50 2012 -0700 If an evdns_getaddrinfo timeout happens while pending_cb is set, and a callback is about to run, but we get a call to evdns_getaddrinfo_gotresolve before it finishes. libevent dc3207767d4f06b31 * Mon Jul 30 19:14:56 2012 -0700 Always install ltdl * Mon Jul 30 19:04:18 2012 -0700 Merge 1.1 to master. Merge: 0d07695 24e697c * Mon Jul 30 19:02:01 2012 -0700 Merge branch 'master' into 1.1 * master: Cut the crap. DNS using TCP can actually be faster than UDP. Provided that the resolver supports pipelining. Bump NDK to r8b * Sun Jul 29 13:26:32 2012 -0700 Cut the crap. DNS using TCP can actually be faster than UDP. Provided that the resolver supports pipelining. * Sun Jul 29 13:16:35 2012 -0700 Bump NDK to r8b Merge: c260e87 b12196d * Sun Jul 29 13:12:24 2012 -0700 Merge branch 'master' into 1.1 * master: Regen man pages Mention that in hostip, --resolver-address can include a port number. sort The --resolver-ip command-line switch is gone. Pointed out by awfulhak@ * Sun Jul 29 13:12:08 2012 -0700 Regen man pages * Sun Jul 29 13:01:00 2012 -0700 Mention that in hostip, --resolver-address can include a port number. * Sun Jul 29 12:40:45 2012 -0700 sort * Sun Jul 29 12:23:43 2012 -0700 The --resolver-ip command-line switch is gone. Pointed out by awfulhak@ Merge: 51a5d57 2ac78d9 * Thu Jul 26 21:36:31 2012 -0700 Merge branch 'master' into 1.1 * master: Bring libevent patches up to a0912e32068621eb776d678224e4108511d281e3 * Thu Jul 26 21:29:10 2012 -0700 Bring libevent patches up to a0912e32068621eb776d678224e4108511d281e3 Check more setsockopt return values when binding sockets. Found by coverity memset sockaddr_in before using it. Found by coverity. Move assignment outside tt_assert in ssl unit tests. Appeases coverity. Add checks to various return values in unit tests. Found by coverity Avoid possible needless call to writev. Found by coverity. Remove unused variable; spotted by coverity Avoid more crashes/bad calls in unit tests; found by coverity Add some missing null checks to unit tests; found by coverity Fix resource leaks in the unit tests; found by coverity Fix various check-after-dereference issues in unit tests: found by coverity Set umask before calling mkstemp in unit tests. Found by coverity Fix possible uninitialized read in dns regression tests. Found by coverity. Remove deadcode in http regression tests. Found by coverity. Merge: 5e7e8a5 82cd026 * Thu Jul 26 14:30:08 2012 -0700 Merge branch 'master' into 1.1 * master: Update ChangeLog Gentoo ebuild for dnscrypt-proxy 1.0. Grammar use --enable-nonblocking-random as suggested by Frank DENIS. dnscrypt-proxy 0.9.4. * Thu Jul 26 13:27:04 2012 -0700 Update ChangeLog * Thu Jul 26 16:08:59 2012 -0400 Gentoo ebuild for dnscrypt-proxy 1.0. Merge: f3f8357 86d764e * Thu Jul 26 16:02:19 2012 -0400 Merge remote-tracking branch 'upstream/master' into lebel * Thu Jul 26 12:28:58 2012 -0700 Grammar Merge: 682ea2d fe1cc6a * Thu Jul 26 12:27:29 2012 -0700 Merge branch 'master' into 1.1 * master: More links and docs. / => \ Add a README file for Windows. Actually start the service. Don't parse the command-line if the service is run as a... service. Remove Logfile from the registry. Support settings pretty much everything through the registry Reorder variables xor what we get from the system PRG with a HMAC of it. If the system PRG is truly random, it's a no-op. If a way to recover a state given a few CryptGenRandom() stream samples is found, leaked dnscrypt keys will still require breaking SHA2 in order take advantage of this. Start reading the configuration from the registry Don't bother registering the command-line, since we will use the registry. Auto-start the service, and add what it takes to read the registry. Read 952 bits (a full SHA256 block + a final one) from the system RNG Add code for having a dynamic argv, so that we can use the registry to update it Keep the command line switches CreateService() dependencies should be an actual NULL string. Document the new command-line switches for running the proxy as a service. WINDOWS_SERVICE_NAME Add --install, --reinstall and --uninstall switches to install as a service. * Thu Jul 26 12:22:32 2012 -0700 More links and docs. * Thu Jul 26 12:17:02 2012 -0700 / => \ * Thu Jul 26 12:15:22 2012 -0700 Add a README file for Windows. * Thu Jul 26 11:59:50 2012 -0700 Actually start the service. * Thu Jul 26 11:53:26 2012 -0700 Don't parse the command-line if the service is run as a... service. * Thu Jul 26 11:52:58 2012 -0700 Remove Logfile from the registry. * Thu Jul 26 11:33:45 2012 -0700 Support settings pretty much everything through the registry * Thu Jul 26 00:44:04 2012 -0700 Reorder variables * Wed Jul 25 23:32:14 2012 -0700 xor what we get from the system PRG with a HMAC of it. If the system PRG is truly random, it's a no-op. If a way to recover a state given a few CryptGenRandom() stream samples is found, leaked dnscrypt keys will still require breaking SHA2 in order take advantage of this. * Wed Jul 25 18:23:38 2012 -0700 Start reading the configuration from the registry * Wed Jul 25 18:09:09 2012 -0700 Don't bother registering the command-line, since we will use the registry. * Wed Jul 25 18:06:49 2012 -0700 Auto-start the service, and add what it takes to read the registry. * Wed Jul 25 20:57:42 2012 -0700 Read 952 bits (a full SHA256 block + a final one) from the system RNG * Wed Jul 25 08:54:25 2012 -0700 Allow empty options. * Wed Jul 25 08:52:20 2012 -0700 Add code for having a dynamic argv, so that we can use the registry to update it * Wed Jul 25 00:09:13 2012 -0700 Keep the command line switches * Tue Jul 24 22:42:24 2012 -0700 CreateService() dependencies should be an actual NULL string. * Tue Jul 24 22:29:39 2012 -0700 Document the new command-line switches for running the proxy as a service. * Tue Jul 24 22:19:19 2012 -0700 WINDOWS_SERVICE_NAME * Tue Jul 24 22:17:37 2012 -0700 Add --install, --reinstall and --uninstall switches to install as a service. Merge: 1966e98 f3dd2c4 * Mon Jul 23 16:54:36 2012 -0700 Merge branch 'master' into 1.1 * master: Head towards 1.0.1 gitignore libltdl Update ChangeLog Update NEWS WINAPI Make the service name overridable Make dnscrypt-proxy work as a Windows service. Add dnscrypt_proxy_loop_break() * Mon Jul 23 16:53:37 2012 -0700 Head towards 1.0.1 * Mon Jul 23 16:51:34 2012 -0700 gitignore libltdl * Mon Jul 23 16:51:06 2012 -0700 Update ChangeLog * Mon Jul 23 16:49:38 2012 -0700 Update NEWS * Mon Jul 23 16:36:59 2012 -0700 WINAPI * Mon Jul 23 16:27:02 2012 -0700 Make the service name overridable * Mon Jul 23 15:58:51 2012 -0700 Make dnscrypt-proxy work as a Windows service. * Mon Jul 23 15:32:29 2012 -0700 Add dnscrypt_proxy_loop_break() Merge: b675340 4d62957 * Sun Jul 22 12:56:10 2012 -0700 Merge branch 'master' into 1.1 * master: Add Solaris support. Don't define _XPG4_2 * Sun Jul 22 12:37:05 2012 -0700 Add Solaris support. * Sun Jul 22 12:31:25 2012 -0700 Don't define _XPG4_2 Merge: ffa0fa2 d443b5d * Sat Jul 21 18:14:48 2012 -0700 Merge branch 'master' into 1.1 * master: Update NEWS / ChangeLog Target Gingerbread. Threads? We don't need threads any more. Add a compilation script for Android Bump to -j3 :) Don't use dtrace when cross-compiling. nacl: always include when rand*() is needed. ensure that libnacl/do is always executable Don't use a hardcoded "ranlib" command. It doesn't play well with cross-compilation. arpa/inet.h is required for htonl() in cert.c * Sat Jul 21 18:14:19 2012 -0700 Update NEWS / ChangeLog * Sat Jul 21 18:09:57 2012 -0700 Target Gingerbread. * Sat Jul 21 18:06:10 2012 -0700 Threads? We don't need threads any more. * Sat Jul 21 17:57:48 2012 -0700 Add a compilation script for Android * Sat Jul 21 17:56:09 2012 -0700 Bump to -j3 :) * Sat Jul 21 17:47:33 2012 -0700 Don't use dtrace when cross-compiling. * Sat Jul 21 17:45:01 2012 -0700 nacl: always include when rand*() is needed. * Sat Jul 21 17:44:50 2012 -0700 ensure that libnacl/do is always executable * Sat Jul 21 17:43:20 2012 -0700 Don't use a hardcoded "ranlib" command. It doesn't play well with cross-compilation. * Sat Jul 21 17:26:06 2012 -0700 arpa/inet.h is required for htonl() in cert.c Merge: f1fa600 be57332 * Fri Jul 20 14:21:42 2012 -0700 Merge branch 'master' into 1.1 * master: Update FreeBSD port Update Dragonfly BSD / NetBSD pkg Update Homebrew formula Update OpenBSD package Bump fpm package to 1.0 Version 1.0 * Fri Jul 20 14:21:10 2012 -0700 Update FreeBSD port * Fri Jul 20 14:19:56 2012 -0700 Update Dragonfly BSD / NetBSD pkg * Fri Jul 20 14:15:22 2012 -0700 Update Homebrew formula * Fri Jul 20 14:12:37 2012 -0700 Update OpenBSD package * Fri Jul 20 13:47:35 2012 -0700 Bump fpm package to 1.0 * Fri Jul 20 13:01:23 2012 -0700 Version 1.0 * Fri Jul 20 12:12:15 2012 -0700 Add a second sample plugin Merge: 0a6a1d6 4747092 * Fri Jul 20 10:58:53 2012 -0700 Merge branch 'master' into 1.1 * master: Update .gitignore to reflect the dnscrypt-proxy->proxy changes * Fri Jul 20 10:58:43 2012 -0700 Ignore Doxyfile for now * Fri Jul 20 10:57:42 2012 -0700 Update .gitignore to reflect the dnscrypt-proxy->proxy changes * Fri Jul 20 10:57:12 2012 -0700 Move plugin code in proxy/ as well. Merge: 124c97b 4a87920 * Fri Jul 20 10:49:18 2012 -0700 Merge branch 'master' into 1.1 * master: Update autoconf again :) * Fri Jul 20 10:48:35 2012 -0700 Update autoconf again :) Merge: 486243a 165facb * Fri Jul 20 10:45:54 2012 -0700 Merge branch 'master' into 1.1 * master: Update autoconf * Fri Jul 20 10:42:45 2012 -0700 Update autoconf * Fri Jul 20 10:42:25 2012 -0700 Prepare another plugin Merge: b9d22cd 5761595 * Fri Jul 20 09:17:25 2012 -0700 Merge branch 'master' into 1.1 * master: The "dnscrypt-proxy" dir just becomes "proxy" to reduce diff w/ dns-proxy. * Fri Jul 20 09:16:47 2012 -0700 The "dnscrypt-proxy" dir just becomes "proxy" to reduce diff w/ dns-proxy. Merge: d7be569 649fa34 * Fri Jul 20 08:43:14 2012 -0700 Merge branch 'master' into 1.1 * master: Remove uv_alloc_buffer_size leftover from the libuv days. * Fri Jul 20 08:42:46 2012 -0700 Remove uv_alloc_buffer_size leftover from the libuv days. * Fri Jul 20 00:43:52 2012 -0700 Grammar * Fri Jul 20 00:02:37 2012 -0700 Add an example that uses ldns. * Thu Jul 19 23:54:38 2012 -0700 Make headers C++-friendly and add a macro for copying a raw packet. * Thu Jul 19 21:58:13 2012 -0700 KNF * Thu Jul 19 21:49:41 2012 -0700 Ignore unused arguments, in order to keep the example as small as possible. * Thu Jul 19 15:28:59 2012 -0700 Use dns_packet_len in TCP code, to reduce the diff with the UDP code. * Thu Jul 19 15:20:44 2012 -0700 Typoz * Thu Jul 19 15:10:30 2012 -0700 Doxygen the plugin API * Thu Jul 19 14:35:21 2012 -0700 UDP post filter * Thu Jul 19 13:42:41 2012 -0700 Export version. * Thu Jul 19 12:48:15 2012 -0700 Keep libtool up until the plugin context is released. * Thu Jul 19 12:34:11 2012 -0700 Add headers to get size_t defined. * Thu Jul 19 12:32:31 2012 -0700 Call the first pre-filter. * Thu Jul 19 12:19:25 2012 -0700 Looks like duplicate code, but if --tcp-only has been enabled, we don't want to call pre-filters. * Thu Jul 19 12:11:36 2012 -0700 Prepare pre- and post- filters. Merge: 7337e74 cb06b13 * Wed Jul 18 23:35:46 2012 -0700 Merge branch 'master' into 1.1 * master: Use CPPFLAGS, not AM_CFLAGS. * Wed Jul 18 12:36:53 2012 -0700 Use CPPFLAGS, not AM_CFLAGS. * Wed Jul 18 22:47:44 2012 -0700 dcps->argc should always be > 0 now. * Wed Jul 18 22:45:06 2012 -0700 Set argv[0] to the plugin path * Wed Jul 18 22:40:39 2012 -0700 Don't link ldns, that will only be for some specific plugins. * Wed Jul 18 22:28:20 2012 -0700 Disable static libraries for plugins * Wed Jul 18 22:21:07 2012 -0700 Log when parsing a --plugin switch fails. * Wed Jul 18 22:02:07 2012 -0700 Remove module version. * Wed Jul 18 21:02:41 2012 -0700 Fix plugin args * Wed Jul 18 21:00:42 2012 -0700 Fix dcplugin_init() prototype. * Wed Jul 18 20:24:38 2012 -0700 No need to check for LibLoaderApi.h and WinBase.h any more. * Wed Jul 18 20:23:53 2012 -0700 Check if libldns is available. * Wed Jul 18 19:54:32 2012 -0700 Add dcplugin_destroy() * Wed Jul 18 18:20:56 2012 -0700 Start actually calling plugins. * Wed Jul 18 18:04:55 2012 -0700 Start resolving symbols * Wed Jul 18 17:52:50 2012 -0700 Load dynamic libraries. * Wed Jul 18 16:56:33 2012 -0700 Link plugins with -module * Wed Jul 18 16:51:16 2012 -0700 Prepare for loading plugins. * Wed Jul 18 16:17:41 2012 -0700 plugin_name -> plugin_file * Wed Jul 18 16:15:30 2012 -0700 Store plugin-specific options. * Wed Jul 18 15:48:49 2012 -0700 Create and insert plugins. * Wed Jul 18 14:53:20 2012 -0700 Use DCPluginSupportContext to handle multiple DCPluginSupport objects. * Wed Jul 18 14:37:03 2012 -0700 More infrastructure for plugins. * Wed Jul 18 13:06:20 2012 -0700 Document PLUGIN_REVISION * Wed Jul 18 12:36:53 2012 -0700 Use CPPFLAGS, not AM_CFLAGS. * Wed Jul 18 12:06:37 2012 -0700 is what developers should include for writing plugins. * Wed Jul 18 11:52:36 2012 -0700 Install dnscrypt headers for plugin developers. Merge: b3e9707 9c1197d * Tue Jul 17 21:59:33 2012 -0700 Merge branch 'master' into 1.1 * master: tab * Tue Jul 17 21:59:14 2012 -0700 tab Merge: fb2a7f0 2799372 * Tue Jul 17 21:58:17 2012 -0700 Merge branch 'master' into 1.1 * master: Add explicit dependencies. Update autoconf script. * Tue Jul 17 21:53:08 2012 -0700 Prepare a simple plugin. * Tue Jul 17 21:18:53 2012 -0700 Only build and link ltdl if plugins are enabled. * Tue Jul 17 21:02:38 2012 -0700 Add explicit dependencies. * Tue Jul 17 21:01:20 2012 -0700 Add some explicit dependencies * Tue Jul 17 20:55:19 2012 -0700 Replace dl.[ch] with libltdl * Tue Jul 17 20:36:13 2012 -0700 Update autoconf script. * Tue Jul 17 20:32:30 2012 -0700 Add libltdl * Tue Jul 17 20:09:50 2012 -0700 Add a basic dynamic library loader. * Tue Jul 17 17:39:25 2012 -0700 Remove TRIM_PADDING_FROM_REPLIES. We always do. * Tue Jul 17 17:38:36 2012 -0700 Move to version 1.0 * Tue Jul 17 17:33:03 2012 -0700 libevent: Fix a memory leak on error in evhttp_uriencode. Not used in dnscrypt-proxy, but we should keep that up to date. * Tue Jul 17 17:18:45 2012 -0700 Update ChangeLog * Tue Jul 17 17:16:59 2012 -0700 Reenable --enable-debug * Tue Jul 17 16:58:19 2012 -0700 Don't double quote CFLAGS. * Tue Jul 17 16:22:32 2012 -0700 Change the way we pass the autoconf args to the libevent autoconf script. * Tue Jul 17 13:05:16 2012 -0700 fpm -> 0.12 * Tue Jul 17 12:33:08 2012 -0700 Update ChangeLog for 0.12 * Tue Jul 17 12:01:17 2012 -0700 Bind UDP listeners first. * Tue Jul 17 11:56:50 2012 -0700 Update ChangeLog * Tue Jul 17 11:48:02 2012 -0700 Reset ac_configure_args before configuring libevent. This fixes the issue with the OpenBSD port, that was reseting both CC and CFLAGS. * Tue Jul 17 11:21:02 2012 -0700 Use both -fPIE (cc) and -pie (linker) or none. * Tue Jul 17 11:11:29 2012 -0700 Restore -pie. It breaks the OpenBSD-current port, but unbreaks Linux, aaahhhhhh. * Tue Jul 17 10:30:58 2012 -0700 No more rlimit for now. * Tue Jul 17 09:08:09 2012 -0700 Don't strip symbols on Debian packages. Screw you, stupid Debian policies. * Tue Jul 17 08:40:41 2012 -0700 Start UDP listeners first. They provide an error message when they fail. * Tue Jul 17 08:37:00 2012 -0700 Linux doesn't like RLIMIT_NPROC = 0. * Mon Jul 16 22:47:26 2012 -0700 Use nonexistent.local instead of nonexistent.example.com or else OpenDNS servers can return the "guide" IP instead of NXDOMAIN. * Mon Jul 16 21:40:01 2012 -0700 Invert the ifdef logic for retries. * Mon Jul 16 21:32:45 2012 -0700 Enable retries. * Mon Jul 16 21:26:01 2012 -0700 DNSCrypt 0.12 * Mon Jul 16 21:22:38 2012 -0700 Fix UDP retries: ditch the retry timer after a successful sendto(). * Mon Jul 16 18:16:39 2012 -0700 Update FreeBSD port. * Mon Jul 16 18:14:16 2012 -0700 Update NetBSD / Dragonfly BSD packages again. * Mon Jul 16 18:11:02 2012 -0700 Update OpenBSD package. * Mon Jul 16 18:01:31 2012 -0700 Update Homebrew formula. * Mon Jul 16 17:51:31 2012 -0700 Bring back _FORTIFY_SOURCE. * Mon Jul 16 17:49:36 2012 -0700 Prepare OpenBSD package update. * Mon Jul 16 17:42:56 2012 -0700 Add -fwrapv * Mon Jul 16 17:34:44 2012 -0700 Update ChangeLog * Mon Jul 16 17:33:48 2012 -0700 Nuke -pie for now. It breaks the OpenBSD-current port. * Mon Jul 16 16:15:02 2012 -0700 Update NetBSD / Dragonfly BSD package * Mon Jul 16 16:00:25 2012 -0700 Bump Homebrew package * Mon Jul 16 15:07:56 2012 -0700 Cleanup dist-files * Mon Jul 16 15:00:38 2012 -0700 Bump fpm packages to 0.11 * Mon Jul 16 14:53:24 2012 -0700 Screw you, gcc * Mon Jul 16 14:49:47 2012 -0700 gcc nits * Mon Jul 16 14:40:01 2012 -0700 Disable UDP sendto() retries for now. * Mon Jul 16 14:21:26 2012 -0700 0.11 * Mon Jul 16 14:05:59 2012 -0700 Check for -W combos, not for individual switches. * Mon Jul 16 14:05:46 2012 -0700 Add config.guess patch for bitrig to the tree. * Mon Jul 16 13:50:15 2012 -0700 Try harder to trigger the gcc warning bug. * Mon Jul 16 13:44:38 2012 -0700 Move clang detection * Mon Jul 16 13:39:33 2012 -0700 Update Changelog * Mon Jul 16 13:38:48 2012 -0700 Improve ax_check_compile_flag by adding an unused variable in order to always trigger a non-fatal compiler warning. * Mon Jul 16 13:31:01 2012 -0700 Ignore unknown warnings only if we are using clang. * Mon Jul 16 13:23:00 2012 -0700 Remove -Wno-unknown-warning-option because of this stupid gcc. * Mon Jul 16 12:57:59 2012 -0700 libevent Win32: avoid crash when waiting forever on zero fds. * Mon Jul 16 12:57:21 2012 -0700 Explicitly mention libtool in the autoconf script. * Mon Jul 16 12:41:46 2012 -0700 Run sandbox_init() only if it's not a stub. * Mon Jul 16 11:55:57 2012 -0700 Update Changelog * Mon Jul 16 11:55:40 2012 -0700 Xcode 4.5DP3 * Mon Jul 16 11:53:58 2012 -0700 Test --tcp-only * Mon Jul 16 11:36:48 2012 -0700 Update dist-files * Mon Jul 16 11:35:42 2012 -0700 opendnscache-proxy was the name of dnscrypt 1 year ago. Rename it to dnscrypt-proxy. * Mon Jul 16 11:32:24 2012 -0700 Mention PowerDNS. * Mon Jul 16 11:29:54 2012 -0700 And Gemfile and more tests. * Mon Jul 16 11:01:52 2012 -0700 Exit with 1 when an invalid option is given in hostip, too. * Mon Jul 16 10:43:52 2012 -0700 Exit with 1 when an unknown option is given. * Mon Jul 16 00:34:06 2012 -0700 Revert to always using -fstack-protector-all on Windows. If it fails outside the MingW environment, either do some magic to statically link it, or use --disable-ssp if you're desperate. * Sun Jul 15 23:58:37 2012 -0700 Statically link libssp on Windows. * Sun Jul 15 23:12:15 2012 -0700 Windoz nitz * Sun Jul 15 22:58:29 2012 -0700 Add --disable-ssp option for platforms lacking libssp. (sad) * Sun Jul 15 21:50:18 2012 -0700 Ignore deprecated declarations warnings for sandbox*() * Sun Jul 15 21:50:08 2012 -0700 Reorder * Sun Jul 15 21:42:14 2012 -0700 Try to better detect Windows targets. * Sun Jul 15 21:00:24 2012 -0700 Copy with Winsock2 prototypes. * Sun Jul 15 21:00:10 2012 -0700 Use ev_socklen_t everywhere. * Sun Jul 15 20:50:42 2012 -0700 Update noops for systems without dtrace. * Sun Jul 15 17:23:58 2012 -0700 Update NEWS / ChangeLog * Sun Jul 15 17:17:52 2012 -0700 Deprecate --local-port and --resolver-port * Sun Jul 15 17:08:11 2012 -0700 Use some crazy heuristics to support ip:port addresses as well as the old format --x-address and --x-port. * Sun Jul 15 17:02:50 2012 -0700 Export evutil_format_sockaddr_port() * Sun Jul 15 16:04:47 2012 -0700 Update NEWS/ChangeLog * Sun Jul 15 15:58:19 2012 -0700 Remove pwnam comments. * Sun Jul 15 15:39:29 2012 -0700 Rename SendtoWithRetryCbCtx to SendtoWithRetryCtx * Sun Jul 15 15:24:12 2012 -0700 Retries is zero, already, thanks to calloc(). * Sun Jul 15 15:23:29 2012 -0700 Support retries on Windows. * Sun Jul 15 14:46:41 2012 -0700 Retry every second. On relevant errors only. At least on !_WIN32. Windows roots are the DOS, anyway. * Sun Jul 15 14:20:55 2012 -0700 Retry on UDP sendto() error. We should only do that on non-fatal errors only. Which means testing for different error codes on Windows. Bleh. * Sun Jul 15 12:50:51 2012 -0700 Factorize sendto() calls and pave the way for retrying on non-fatal errors. * Fri Jul 13 10:26:58 2012 -0700 Port 443 is already the default. * Thu Jul 12 15:04:18 2012 -0700 Don't assert(! TAILQ_EMPTY()) unless the request has actually been inserted in the list of queued requests. Should fix issue #19. * Thu Jul 12 14:24:45 2012 -0700 hostip: add things Windows needs in order to get the in6_addr structure defined * Wed Jul 11 14:26:54 2012 -0700 Check for setrlimit() existence. * Wed Jul 11 14:25:42 2012 -0700 Restrict a bit more what processes can do. * Mon Jul 9 18:14:08 2012 -0700 Build hostip last. * Fri Jul 6 21:37:12 2012 -0700 Indentation nits... * Fri Jul 6 21:31:55 2012 -0700 Update ChangeLog, bump version to 0.11 * Fri Jul 6 21:28:30 2012 -0700 Introduce hostip(8), a tool for resolving a name before dnscrypt-proxy starts. It should help fighting the chicken-and-egg issue seen on routers, where dnscrypt-proxy requires a working NTP server, but the NTP server requires a working resolver. * Fri Jul 6 19:38:26 2012 -0700 Useless indentation nits. * Mon Jul 2 23:35:17 2012 -0700 Use ioctl() instead of fnctl(fnctl()) as much as possible. Saves 1 syscall. * Mon Jul 2 16:10:30 2012 -0700 Define getpwnam() and struct passwd if getpwnam(3) exists but the headers don't. * Tue Jun 26 13:59:34 2012 -0700 Xcode 4.5 DP2 * Sun Jun 24 23:55:10 2012 -0700 Bump Linux packages to 10.0.1 * Sun Jun 24 23:47:40 2012 -0700 Update ChangeLog * Sun Jun 24 15:45:48 2012 -0700 Current dev version is 0.10.1 * Sun Jun 24 15:12:42 2012 -0700 chroot() as soon as we can again. Drop libevent2's evdns arc4random() to use our chroot()-proof salsa20_random() function instead. * Sun Jun 24 15:08:11 2012 -0700 libevent: resurrect evdns_set_random_bytes_fn() and add evdns_set_random_init_fn(). Using the provided RC4 generator is nice, but we maybe want to use something else, in particular if we need something that is guaranteed to work in a chroot jail, without a /dev/*random device. * Sun Jun 24 14:19:35 2012 -0700 libevent: don't use memset() to securely wipe a buffer, because it's prone to compiler optimization. * Sun Jun 24 14:15:13 2012 -0700 libevent: do not close /dev/*random and /proc/**/uuid descriptors, in order to keep them accessible after chroot(), when reseeding is needed. * Sun Jun 24 13:59:07 2012 -0700 Revoke privileges after cert_updater_start() for systems without arc4random(). Pointed out by Ben Kibbey. * Sun Jun 24 11:46:27 2012 -0700 Change arc4random_uniform() to calculate ``2**32 % upper_bound'' as ``-upper_bound % upper_bound''. From OpenBSD. * Thu Jun 21 10:47:36 2012 -0700 Update pkgsrc packages. * Thu Jun 21 10:46:24 2012 -0700 Update FreeBSD package. Merge: f04c9ed 7a99603 * Thu Jun 21 13:45:33 2012 -0400 Merge remote branch 'upstream/master' into lebel * Thu Jun 21 10:45:06 2012 -0700 Update Homebrew formula. * Thu Jun 21 10:44:23 2012 -0700 Update OpenBSD port. * Thu Jun 21 02:18:36 2012 -0700 Update ChangeLog * Thu Jun 21 02:18:13 2012 -0700 Don't install libevent. * Thu Jun 21 00:36:44 2012 -0700 Compile with -fPIC if possible. * Thu Jun 21 00:26:28 2012 -0700 Make some type conversions explicit. * Thu Jun 21 00:13:33 2012 -0700 Typo * Wed Jun 20 21:41:59 2012 -0700 Fix IOC diagnostic with a left shift. * Wed Jun 20 08:45:58 2012 -0700 mingw defines cygwin32 as a host OS. * Tue Jun 19 14:12:30 2012 -0700 Update NetBSD / Dragonfly BSD package. * Tue Jun 19 14:10:17 2012 -0700 Update Homebrew formula * Tue Jun 19 14:09:40 2012 -0700 Update OpenBSD package * Tue Jun 19 14:07:52 2012 -0700 Update the FreeBSD port * Tue Jun 19 13:43:20 2012 -0700 We officially support Bitrig. * Tue Jun 19 12:00:14 2012 -0700 Update ChangeLog * Tue Jun 19 11:59:16 2012 -0700 More dtrace probes. * Tue Jun 19 11:46:02 2012 -0700 Update TCP dtrace probes * Tue Jun 19 11:16:19 2012 -0700 Bump Linux packages to 0.10 * Tue Jun 19 11:07:18 2012 -0700 Update libevent to be7a95c62995a679ee24146b0d641b7392cbab51 * Tue Jun 19 10:57:09 2012 -0700 Cast txtlen to size_t * Tue Jun 19 10:37:56 2012 -0700 Fix txt size check * Tue Jun 19 10:29:16 2012 -0700 Update date & changelog. * Tue Jun 19 08:48:23 2012 -0700 IPPROTO_TCP is defined in netinet/in.h on Dragonfly BSD * Tue Jun 19 00:56:23 2012 -0700 More gwurglz zindoz needz * Tue Jun 19 00:32:04 2012 -0700 Shit Windows needs. * Tue Jun 19 00:02:39 2012 -0700 Some fixes for Windows... * Mon Jun 18 21:38:47 2012 -0700 Allow 64K packets on TCP, use a different definition for UDP. * Mon Jun 18 21:30:05 2012 -0700 Spacing, blank lines, etc. * Mon Jun 18 21:25:48 2012 -0700 Test for big endianness in configure.ac Change the first part of the client nonce to little endian on a big endian system. Add 10 extra bits of randomness by the way. * Mon Jun 18 17:55:48 2012 -0700 Update ChangeLog * Mon Jun 18 17:55:08 2012 -0700 Disable the Nagle algorithm when sending a query to a resolver. * Mon Jun 18 17:39:46 2012 -0700 If we need a free slot and there's none for the current protocol, steal one from the other protocol. Having distinct knobs for UDP and TCP makes sense now, but it will not make sense once OpenDNS will properly support TCP persistent connections. * Mon Jun 18 17:21:41 2012 -0700 Factorize. * Mon Jun 18 12:54:22 2012 -0700 Update ChangeLog * Mon Jun 18 12:04:41 2012 -0700 Only resolve local_sockaddr once. * Mon Jun 18 10:41:29 2012 -0700 Unfuck libevent on Win32 when threading support has been disabled. * Mon Jun 18 08:23:26 2012 -0700 Run libevent's autogen.sh along with the top-level one. * Mon Jun 18 01:26:51 2012 -0700 Unfuck compilation on Linux. * Mon Jun 18 01:04:52 2012 -0700 Update ChangeLog * Mon Jun 18 01:03:14 2012 -0700 Remove free() leftover. * Mon Jun 18 00:48:26 2012 -0700 Use -Oz for the iOS build. * Thu Jun 14 16:50:34 2012 -0700 Rewrite using libevent instead of libuv. * Wed Jun 13 17:10:05 2012 -0700 libuv update * Wed Jun 13 17:06:37 2012 -0700 Update Xcode * Sun May 20 21:27:15 2012 -0700 Unbreak libuv compilation with mingw32. * Sun May 20 19:15:17 2012 -0700 This libuv code is scary and we don't use it, but check at least the strdup() output. * Wed May 16 07:13:49 2012 -0700 Change #if FIONBIO to #ifdef FIONBIO. Fixes compilation on Debian/ppc 6.0.4. Reported by Sebastian Sjoholm. * Thu Feb 9 14:57:31 2012 -0800 Don't malloc(0). If we don't have any interfaces, return OK / null. * Thu Feb 9 14:53:18 2012 -0800 Rewrite uv_hrtime() for Darwin in a portable way. * Thu Feb 9 14:33:05 2012 -0800 rename() requires on OSX. Don't ask why. * Wed Jun 13 16:59:43 2012 -0700 Resync libuv * Wed Jun 13 16:31:44 2012 -0700 Remove overzealous assertion. * Wed Jun 13 11:34:44 2012 -0700 Typo * Wed Jun 13 11:23:35 2012 -0700 OpenDNS finally sends zero-padded replies. Define TRIM_PADDING_FROM_REPLIES. * Tue Jun 5 16:58:17 2012 -0700 Update Homebrew formula. * Tue Jun 5 16:55:01 2012 -0700 Update the OpenBSD package to 0.9.5 * Tue Jun 5 16:30:34 2012 -0700 Update ChangeLog * Tue Jun 5 16:30:10 2012 -0700 Implement dnscrypt_memzero() instead of using a volatile cast. * Tue Jun 5 16:12:26 2012 -0700 Update ChangeLog * Tue Jun 5 16:11:18 2012 -0700 Send the initial query through ares to whatever port has been specified using --resolver-port even using UDP. * Tue Jun 5 16:00:43 2012 -0700 More libuv cherrypicks * Mon Jun 4 22:09:50 2012 -0700 libuv cherrypicks * Mon Jun 4 21:57:22 2012 -0700 Update ChangeLog * Mon Jun 4 21:50:46 2012 -0700 Revert libuv to 3f0833eec07b5fbea2057c47e1c9014d3b347d35 Something looks broken on Linux between this revision and 75565907073055dd717fb6a6074518cafdd9355d. * Mon Jun 4 15:52:28 2012 -0700 libuv update to 7d2ea316183ba29a8ab5883593d1f6ee6f8f8ae3 unix: fix event loop stall * Mon Jun 4 12:28:03 2012 -0700 ChangeLog update. * Mon Jun 4 12:02:10 2012 -0700 Update libuv to 0dff0e7d47453fafb72a287c0acdddd6e3f2d9de A big and scary update. * Tue May 29 22:39:36 2012 -0700 Avoid compiler optimizations. * Mon May 28 23:11:34 2012 -0700 Update the plist file to use port 443 by default. * Mon May 28 22:39:56 2012 -0700 libuv update to 75565907073055dd717fb6a6074518cafdd9355d * Mon May 28 22:25:18 2012 -0700 Make sure that the event loop is always NULL before parsing options. * Mon May 28 22:17:24 2012 -0700 Don't call anything from libuv before fork()ing. Since libuv will never be fork()-safe. * Mon May 28 22:01:48 2012 -0700 Initialize options one by one. Fixes dnscrypt on iOS. * Mon May 28 21:49:59 2012 -0700 Log when uv_loop_new() fails. * Sun May 27 10:56:45 2012 -0700 Remove libc6 dependency for RPMs because Fedora apparently doesn't like it. * Sun May 27 01:16:08 2012 -0700 We need to somehow call WSAStartup before trying to perform any lookups on Win32. * Sun May 27 00:57:48 2012 -0700 Unfuck Win32 build * Sat May 26 19:32:53 2012 -0700 Fix Cygwin test * Sat May 26 14:13:48 2012 -0700 Update NEWS * Sat May 26 14:11:17 2012 -0700 Bump version to 0.9.5, but don't tag yet. * Sat May 26 14:04:08 2012 -0700 Introduce ares_set_servers_any() * Sat May 26 12:23:38 2012 -0700 Remove useless prototype. * Sat May 26 12:21:41 2012 -0700 Remove STORAGE_PORT4 and STORAGE_PORT6. All we want is STORAGE_PORT_ANY. * Sat May 26 12:13:05 2012 -0700 Complete IPv6 support. * Sat May 26 11:30:03 2012 -0700 Support IPv6 for retrieving a certificate. * Sat May 26 00:49:24 2012 -0700 Wrap some libuv functions to work both with IPv4 and IPv6. * Fri May 25 21:11:26 2012 -0700 Don't use proxy_context->(ud|tc)p_listener_handle in a function where a handle is explicitly given. * Fri May 25 20:49:13 2012 -0700 Trim padding from replies. Not supported by OpenDNS yet, so #ifdef'd. * Fri May 25 20:37:11 2012 -0700 libuv update to 3f0833eec07b5fbea2057c47e1c9014d3b347d35 * Fri May 25 14:28:33 2012 -0700 Ignore log_fd on Windows. * Wed May 23 12:47:45 2012 -0400 Gentoo ebuiild for dnscrypt-proxy 0.9.4. * Wed May 23 13:18:48 2012 -0400 use --enable-nonblocking-random as suggested by Frank DENIS. * Wed May 23 12:47:45 2012 -0400 dnscrypt-proxy 0.9.4. * Tue May 22 08:04:24 2012 -0700 libuv update to d1665792ca22d30b60319199662a0399be9f1352 * Tue May 22 07:48:30 2012 -0700 Revert USE_NONBLOCKING_RANDOM since gathering enough entropy can be way too slow on Linux. Turn this switch on if your OS doesn't correctly seed /dev/urandom at boot and at install time, or use a better operating system. * Sun May 20 23:04:48 2012 -0700 Update the Linux fpm package * Sun May 20 23:04:23 2012 -0700 Update the FreeBSD package * Sun May 20 23:02:30 2012 -0700 Update the NetBSD/Dragonfly BSD package. * Sun May 20 23:00:10 2012 -0700 Update Homebrew formula. * Sun May 20 22:58:59 2012 -0700 Update OpenBSD port. * Sun May 20 22:41:42 2012 -0700 Unfuck libuv on Dragonfly... Again... * Sun May 20 21:27:15 2012 -0700 Unbreak libuv compilation with mingw32. * Sun May 20 21:06:06 2012 -0700 Update the OpenBSD port * Sun May 20 19:30:44 2012 -0700 Update dist-files, dist-dirs * Sun May 20 19:22:36 2012 -0700 Update ChangeLog * Sun May 20 19:22:12 2012 -0700 Mention the new Gentoo packages and credit David Lebel. * Sun May 20 19:17:20 2012 -0700 Doc update * Sun May 20 19:15:17 2012 -0700 This libuv code is scary and we don't use it, but check at least the strdup() output. * Sun May 20 18:55:36 2012 -0700 Use --enable-debug instead of --with-debug * Sun May 20 18:53:58 2012 -0700 Provide --use-nonblocking-random if you really need to use /dev/urandom but use /dev/random by default. /dev/arandom has been removed from OpenBSD a long time ago, but I'm attached to it. * Sun May 20 18:30:47 2012 -0700 Don't recommend DNS caches that are unable to perform DNSSec validation. * Sun May 20 18:22:54 2012 -0700 Rename section title. * Sun May 20 18:19:34 2012 -0700 Drop the --tcp-port= switch, and introduce --resolver-port= and --tcp-only switches instead. * Sun May 20 15:43:15 2012 -0700 Update libuv to e82d46452e3db141d3875286cf90be0de6d724e0 * Thu May 17 22:26:29 2012 -0700 Use Xcode4.4-DP5 * Wed May 16 07:35:45 2012 -0700 Provide a link to github for bug reports. * Wed May 16 07:16:15 2012 -0700 Credit Sebastian Sjoholm. * Wed May 16 07:13:49 2012 -0700 Change #if FIONBIO to #ifdef FIONBIO. Fixes compilation on Debian/ppc 6.0.4. Reported by Sebastian Sjoholm. * Wed May 16 07:12:41 2012 -0700 libuv - test: prevent accidental division by zero * Wed May 9 12:51:06 2012 -0700 Mention the official GUI for Windows, now that it's officially out. * Sun May 6 15:16:48 2012 -0700 Update Xcode Path to 4.4DP4, and mention that iOS binaries have to be signed. * Sat May 5 21:43:04 2012 -0700 Sync ChangeLog * Sat May 5 19:07:29 2012 -0700 Move all checks for linker flags to the same place, and always use -Wl. * Sat May 5 18:56:25 2012 -0700 Add pass -z,noexecstack to the linker if it accepts it. Merge: 00af2e8 7c77d94 * Sat May 5 18:51:16 2012 -0700 Merge remote-tracking branch 'lebel/lebel' * lebel/lebel: Add gentoo's portage files. * Sat May 5 12:25:14 2012 -0700 Sync libuv to 985b961d4eab778857101b17b62f9e521d43a157 * Tue May 1 13:54:54 2012 -0700 Switch the iOS SDK to 5.1 * Tue May 1 13:26:19 2012 -0700 Update libuv to 6367da25b38274c31b42097056b2995c2696caef. Pretty sure it breaks non-Linux & OSX platforms as usual. * Tue May 1 12:17:31 2012 -0700 Pad with 0x80...0 * Fri Apr 20 09:59:05 2012 -0400 Add gentoo's portage files. * Wed Mar 21 22:07:54 2012 -0700 Sync libuv up to c9c9d805dae321a7bdf0077547c2da2dbe70f2a2 * Mon Mar 19 16:43:59 2012 -0700 Sync libuv up to 49d4e1884ba5ea135f68c8b17fdf2c5d5bf0f91e * Tue Mar 13 15:30:47 2012 -0700 Give fpm a list of directories to package. * Mon Mar 12 13:41:14 2012 -0700 libuv does support Openwall Linux by default, now. The libuv guys are very reactive when it comes to merging patches. * Mon Mar 12 12:09:36 2012 -0700 Sync libuv up to db413f3806356a632774b8a589546fc6788debd6 * Wed Mar 7 17:02:30 2012 -0800 Update ChangeLog * Wed Mar 7 17:01:06 2012 -0800 --daemonize has been fixed. * Wed Mar 7 16:38:01 2012 -0800 Update packages * Wed Mar 7 16:24:10 2012 -0800 Update ChangeLog * Wed Mar 7 16:21:33 2012 -0800 Initialize the event loop after having parse the options so that the event loop works fine after a possible fork() when the proxy is started with the --daemonize switch. * Wed Mar 7 15:10:57 2012 -0800 sync libuv to d07f2466d0a10ab02db588374dd97c2edd54c7fc * Tue Mar 6 16:54:16 2012 -0800 Update Dragonfly BSD & NetBSD package. * Tue Mar 6 16:52:47 2012 -0800 Fix FreeBSD distinfo. * Tue Mar 6 16:51:43 2012 -0800 Update FreeBSD package. * Tue Mar 6 16:49:47 2012 -0800 Update OpenBSD package to 0.9.3 * Tue Mar 6 16:47:50 2012 -0800 Update Homebrew formula. * Tue Mar 6 16:47:07 2012 -0800 Bump Linux package version to 0.9.3 * Tue Mar 6 14:11:02 2012 -0800 cygwin: we need to include uv-common.h for uv__set_sys_error() * Tue Mar 6 12:22:52 2012 -0800 Add windows quirks to the distribution. * Tue Mar 6 12:20:11 2012 -0800 Don't include sys/sysctl.h without sys/param.h first. * Tue Mar 6 12:10:22 2012 -0800 Update ChangeLog * Tue Mar 6 11:57:46 2012 -0800 Remove command-line switches that are unsupported on Win32. * Mon Mar 5 15:26:53 2012 -0800 Add missing break so that comments in fingerprints work. * Mon Mar 5 13:18:17 2012 -0800 Check for an actual library symbol in order to link Win32-specific libs. * Mon Mar 5 12:46:00 2012 -0800 Update libuv to 5505f2e9063aaf9b52d47315ae4324efbb5834be * Sat Mar 3 23:26:11 2012 -0800 Mention Noxwizard's dnscrypt-winclient * Sat Mar 3 23:25:28 2012 -0800 is required for NULL to be defined in safe_rw.c * Fri Mar 2 16:40:12 2012 -0800 Now, that's a super ugly way of linking ws2_32, psapi and iphlpapi. * Fri Mar 2 15:41:50 2012 -0800 Mark some unused variables on Win32. * Fri Mar 2 15:36:30 2012 -0800 Compile out more pid_file.c code on Win32. * Fri Mar 2 15:33:39 2012 -0800 Use _WIN32 instead of __MINGW32__ just in case we want to support Visual Studio. * Fri Mar 2 15:24:58 2012 -0800 Unfuck daemonization on Cygwin builds. * Fri Mar 2 13:52:14 2012 -0800 Bump version to 0.9.3, featuring native support for Windows. Now, back to serious work. * Fri Mar 2 13:37:11 2012 -0800 Native Windows builds are now supported. Sigh. * Fri Mar 2 13:32:16 2012 -0800 Provide some logging on Windows, and disable unsupported options. * Fri Mar 2 13:03:07 2012 -0800 Pass CRYPT_VERIFYCONTEXT to CryptAcquireContext(). * Fri Mar 2 12:20:21 2012 -0800 Use the CryptoAPI on Win32. * Thu Mar 1 20:41:31 2012 -0800 Fascinating whitespace changes. * Thu Mar 1 20:06:11 2012 -0800 Sync libuv. test: make pipe_connect_to_file succeed with ECONNREFUSED windows: return UV_ENOTSOCK when doing uv_pipe_connect to a file * Thu Mar 1 18:19:33 2012 -0800 Windows: we need to zero the loop structure when we initialize it or else the ares list of handles is uninitialized and bad things can happen when we try to perform async lookups. * Thu Mar 1 17:14:15 2012 -0800 Oh course, there will be no /dev/*random on zindoz. * Thu Mar 1 17:13:59 2012 -0800 Force line buffering for stdout, for zindoz * Thu Mar 1 16:36:37 2012 -0800 Yes, it now natively compiles on Win32. Fortunately, it crashes. * Thu Mar 1 16:33:38 2012 -0800 Shit Win32 needs. * Thu Mar 1 16:30:42 2012 -0800 Link with Winsock2 on Windows. * Thu Mar 1 16:26:20 2012 -0800 Unfuck MingW detection. * Wed Feb 29 21:46:22 2012 -0800 libuv - unix: fix fs_event refcount bug on darwin * Wed Feb 29 21:45:30 2012 -0800 libuv - unix: don't rely on libev to track timer state * Tue Feb 28 23:54:17 2012 -0800 Bump year & remove empty line. (wow, awesome and useful commit) * Fri Feb 24 16:26:20 2012 -0800 The beginning of the end. * Fri Feb 24 16:19:27 2012 -0800 *sigh* * Thu Feb 23 18:14:09 2012 -0800 There are so many random() calls that having just one hack for Win32 will never fit the bill. * Thu Feb 23 18:12:13 2012 -0800 More disgusting changes Windows requires. Not having random()/srandom() is going to be a PITA. * Thu Feb 23 18:03:17 2012 -0800 setrlimit() on Win32? LOL. * Thu Feb 23 17:03:51 2012 -0800 is needed, even for Sleep(). * Thu Feb 23 16:53:31 2012 -0800 Jeez, Win32 doesn't even provide sleep(). * Thu Feb 23 14:52:53 2012 -0800 Fix memory leak in uv_exepath() on OSX. * Thu Feb 23 14:07:08 2012 -0800 Sync libuv Share inotify fd across event loop. * Thu Feb 23 13:24:46 2012 -0800 chmod +x do * Thu Feb 23 12:59:41 2012 -0800 Update ChangeLog for version 0.9.2 * Thu Feb 23 12:54:51 2012 -0800 Mention iOS support, bump version to 0.9.2 * Thu Feb 23 12:46:15 2012 -0800 Some distributions don't provide a "hostname" command. Always use the same name for a compilation directory. * Thu Feb 23 12:41:30 2012 -0800 Improve detection of -fPIE support. * Thu Feb 23 12:22:42 2012 -0800 Unbreak libuv on iPhone. * Thu Feb 23 12:15:54 2012 -0800 Don't benchmark functions at compile-time. That should be done at run-time. * Thu Feb 23 10:05:50 2012 -0800 Test /dev/urandom with -r, not -f * Thu Feb 23 10:00:43 2012 -0800 Run less executables at compile-time in order to make cross-compilation for iPhone & Android possible. * Thu Feb 23 09:48:07 2012 -0800 Don't run test-c - It breaks cross-compilation. * Wed Feb 22 16:04:48 2012 -0800 Add some extra info to the Debian packages so that lintian stops whining. * Tue Feb 21 19:28:08 2012 -0800 libuv - linux: fix signedness issue in uv_exepath() * Fri Feb 17 22:05:19 2012 -0800 Yup * Fri Feb 17 15:59:27 2012 -0800 Add URL / maintainer / category to the Linux packages. * Fri Feb 17 14:41:13 2012 -0800 Update NetBSD and Dragonfly BSD packages. * Fri Feb 17 14:39:56 2012 -0800 Update FreeBSD & Homebrew packages * Fri Feb 17 14:19:11 2012 -0800 Update the dnscrypt package for OpenBSD to 0.9.1 It should now work on non-Intel architectures. * Fri Feb 17 13:51:43 2012 -0800 Bump version to 0.9.1 * Fri Feb 17 13:51:25 2012 -0800 untab * Fri Feb 17 13:46:20 2012 -0800 Both the compiler and the linker have to accept -fstack-protector * Fri Feb 17 13:27:57 2012 -0800 Try to compile something that performs some stack allocation in order to make the AX_CHECK_COMPILE_FLAG work with -fstack-protector * Fri Feb 17 12:16:02 2012 -0800 We actually need uclibc 0.9.32 to use ifaddrs.h * Thu Feb 16 23:53:50 2012 -0800 Thanks, Lance Fredrickson. * Thu Feb 16 23:36:00 2012 -0800 uClibc < 0.9.30 didn't have ifaddrs.h * Thu Feb 16 17:14:12 2012 -0800 Regen OpenBSD distinfo. * Thu Feb 16 17:08:05 2012 -0800 Update NEWS * Thu Feb 16 16:58:32 2012 -0800 Replace cpucycles with a no-op. We're favoring portability for now, and we're not benchmarking functions. And cpucycles seems to be causing a lot of trouble on some architectures. * Thu Feb 16 13:51:14 2012 -0800 Update Dragonfly BSD / NetBSD package. * Thu Feb 16 13:49:00 2012 -0800 Update Homebrew formula. * Thu Feb 16 13:48:11 2012 -0800 execinfo is *not* required on OpenBSD. * Thu Feb 16 13:46:58 2012 -0800 Update OpenBSD packages * Thu Feb 16 13:28:34 2012 -0800 Bump FreeBSD package to 0.9 * Thu Feb 16 13:18:25 2012 -0800 Update the documentation to mention where the tarballs can be downloaded from. * Thu Feb 16 12:46:56 2012 -0800 Update Linux packages to 0.9 * Thu Feb 16 12:39:48 2012 -0800 Regen ChangeLog * Thu Feb 16 12:37:58 2012 -0800 Set version to 0.9 Trying to keep the version number in sync with the Mac GUI doesn't make any sense, especially with a Windows GUI on the way. * Thu Feb 16 12:13:41 2012 -0800 2012 & regen man page * Thu Feb 16 12:10:27 2012 -0800 Remove test-ipc-threads.c and regen uv/dist-files. * Thu Feb 16 12:07:18 2012 -0800 Resync libuv * Thu Feb 9 14:59:55 2012 -0800 Explicitly NULLify app_context.proxy_context * Thu Feb 9 14:57:50 2012 -0800 libuv: plug memleak on error path * Thu Feb 9 14:57:31 2012 -0800 Don't malloc(0). If we don't have any interfaces, return OK / null. * Thu Feb 9 14:53:18 2012 -0800 Rewrite uv_hrtime() for Darwin in a portable way. * Thu Feb 9 14:33:05 2012 -0800 rename() requires on OSX. Don't ask why. * Thu Feb 9 14:32:33 2012 -0800 Resync libuv * Wed Jan 25 16:36:24 2012 -0800 Next version will be 0.11. (yeah, people are having a hard time figuring out that the OSX GUI is a different product, so let's try to keep version numbers more or less in sync) * Wed Jan 25 16:27:57 2012 -0800 libuv cherrypick: unix: set SO_REUSEADDR before binding * Wed Jan 25 16:27:12 2012 -0800 libuv cherrypick: unix: don't close kqueue fd in kqueue_fork() * Wed Jan 25 16:26:42 2012 -0800 libuv cherrypick: unix: clean up udp read/write watchers * Wed Jan 25 16:26:14 2012 -0800 libuv cherrypick: unix: clean up udp shutdown sequence * Wed Jan 25 16:25:32 2012 -0800 libuv cherrypick: unix: don't retry close() on EINTR * Wed Jan 25 16:24:50 2012 -0800 libuv cherrypick: unix: fix segfault in uv_guess_handle() * Wed Jan 25 16:24:14 2012 -0800 libuv cherrypick: unix: fix udp recv_start refcount * Wed Jan 25 16:23:35 2012 -0800 libuv cherrypick: remove unused #define * Wed Jan 25 16:22:05 2012 -0800 libuv cherrypick: docs: add c-ares license note * Sat Dec 31 22:29:59 2011 -0800 2012 * Wed Dec 21 23:21:29 2011 -0800 Cherry-pick 6a9cb902ae25efa6f853dc10b20cd657b8a1f809 * Wed Dec 21 23:20:42 2011 -0800 Cherrypick libuv 3cbe7c3f7952aa249450438b21cf4f346bb88e22 * Wed Dec 21 23:10:26 2011 -0800 Revert "Update libuv" - libuv is still b0rk3d on OpenBSD, DragonflyBSD and NetBSD. * Wed Dec 21 23:10:24 2011 -0800 Revert "Unbreak libuv on Dragonfly BSD." * Wed Dec 21 18:36:43 2011 -0800 Unbreak libuv on Dragonfly BSD. * Wed Dec 21 17:27:10 2011 -0800 Update libuv * Thu Dec 15 09:06:20 2011 -0800 Set TZ even if strftime() fails. * Wed Dec 14 21:52:33 2011 -0800 Update libuv - Except the obviously untested patch provided by Microsoft that totally breaks libuv on BSD. * Wed Dec 14 21:37:42 2011 -0800 Revert - libuv is now totally b0rk3d on FreeBSD/DragonflyBSD. * Wed Dec 14 21:14:18 2011 -0800 Big and scary update to libuv * Wed Dec 14 09:30:48 2011 -0800 Add --disable-dependency-tracking to the Homebrew formula. * Tue Dec 13 22:44:06 2011 -0800 Update Dragonfly BSD / NetBSD package. * Tue Dec 13 22:41:28 2011 -0800 Update Homebrew package * Tue Dec 13 22:40:07 2011 -0800 Update FreeBSD package. * Tue Dec 13 22:36:40 2011 -0800 Update OpenBSD package. * Tue Dec 13 17:50:32 2011 -0800 Update ChangeLog. * Tue Dec 13 17:48:14 2011 -0800 We can detect accept4() while SOCK_CLOEXEC and SOCK_NONBLOCK are unavailable. Fixes compilation on Openwall-current. * Tue Dec 13 17:37:48 2011 -0800 Redirect compile-time tests to an errors file. * Tue Dec 13 17:16:39 2011 -0800 Update for Dragonfly BSD. * Tue Dec 13 17:13:37 2011 -0800 -fstack-protector-all is causing trouble with Dragonfly BSD and NaCl. Use -fstack-protector only on Dragonfly BSD for now. * Tue Dec 13 15:55:53 2011 -0800 Update packages to 0.8 - distinfo files have to be regenerated though. * Tue Dec 13 15:51:52 2011 -0800 Update NEWS / ChangeLog * Mon Dec 12 22:20:06 2011 -0800 Rename C_ASSERT, because Windows defines a macro with the same name. * Mon Dec 12 17:21:57 2011 -0800 Don't use substitution in a $(shell) statement. * Mon Dec 12 17:18:18 2011 -0800 Unfortunately, ULONG_LONG_MAX isn't always defined. * Mon Dec 12 17:00:32 2011 -0800 Sync dist files * Mon Dec 12 16:03:33 2011 -0800 Fix autoconf test. * Mon Dec 12 16:03:19 2011 -0800 Don't include crypto_int32.h * Mon Dec 12 15:47:20 2011 -0800 Missing quote * Mon Dec 12 15:40:08 2011 -0800 Sync libuv * Sun Dec 11 23:06:09 2011 -0800 assert() -> C_ASSERT() * Sun Dec 11 23:01:22 2011 -0800 Ignore .DS_Store * Sun Dec 11 22:53:12 2011 -0800 Typo * Sun Dec 11 20:18:38 2011 -0800 Make getword() a bit faster by using all the output bytes. * Sun Dec 11 19:30:19 2011 -0800 Rephrase. * Sun Dec 11 19:28:20 2011 -0800 Introduce a C_ASSERT() macro instead of repeating (void) sizeof(char[X?1:-1]) * Sun Dec 11 19:17:28 2011 -0800 Switch to salsa20/20 as a stream cipher. * Sun Dec 11 17:02:48 2011 -0800 curvecp is fantastic but we don't use it for now. So don't ship a copy of it. * Sat Dec 10 21:30:20 2011 -0800 Move Linux packages to /usr * Sat Dec 10 16:12:06 2011 -0800 Provide better detection for Mingw when used on Windows. * Sat Dec 10 15:35:08 2011 -0800 Disable -fstack-protector-all on Windows but enable specific flags for ASLR & DEP. * Sat Dec 10 15:21:39 2011 -0800 Enable ASLR and DEP on Win32. * Sat Dec 10 14:42:33 2011 -0800 Works out of the box on Windows using Cygwin (for now, native port is coming). * Sat Dec 10 11:33:06 2011 -0800 Mention do-not-query-localhost: no for Unbound. * Fri Dec 9 14:05:38 2011 -0800 We do support Openwall Linux now. * Fri Dec 9 13:58:13 2011 -0800 Don't try compiling inotify-related functions on Linux distros without inotify. * Fri Dec 9 13:57:34 2011 -0800 Provide compatibility with glibc versions that don't provide pipe2()/O_CLOEXEC * Fri Dec 9 13:24:20 2011 -0800 resync dist-files. * Fri Dec 9 13:19:40 2011 -0800 Moving on. * Fri Dec 9 12:17:41 2011 -0800 Add the default public key for ed25519-signed certs. * Thu Dec 8 17:41:15 2011 -0800 Switch to 2.dnscrypt-cert.opendns.com * Thu Dec 8 17:38:24 2011 -0800 Switch to ed25519 * Thu Dec 8 12:47:55 2011 -0800 Sync libuv * Thu Dec 8 12:35:30 2011 -0800 Import ed25519 - thanks to djb for his feedback. * Wed Dec 7 21:25:08 2011 -0800 Add a sample .plist file. * Wed Dec 7 20:43:33 2011 -0800 Add a formula for Homebrew * Wed Dec 7 12:41:28 2011 -0800 Nits * Wed Dec 7 12:29:12 2011 -0800 Nits * Wed Dec 7 12:25:23 2011 -0800 Nits * Wed Dec 7 12:21:26 2011 -0800 Downcase + remove some redundant stuff. * Wed Dec 7 12:13:59 2011 -0800 Spacing * Wed Dec 7 12:08:21 2011 -0800 Per popular request, add a description of the protocol + implementation details. * Wed Dec 7 08:44:02 2011 -0800 Add links & credits for NaCl and libuv. * Wed Dec 7 08:36:55 2011 -0800 Add THANKS file, credit sthen@ for his help on the OpenBSD port. * Wed Dec 7 08:35:01 2011 -0800 dnscrypt has been written by humans. * Wed Dec 7 00:51:45 2011 -0800 Test presence of 6Jack, that will be required for new tests. Merge: 2a196e1 cfbb34c * Tue Dec 6 15:32:15 2011 -0800 Merge pull request #1 from sthen/master OpenBSD port tweaks * Tue Dec 6 23:19:11 2011 +0000 add ONLY_FOR_ARCH, NaCl needs more work on !i386/amd64 * Tue Dec 6 23:17:10 2011 +0000 picks up libexecinfo if installed; add dep * Tue Dec 6 23:16:40 2011 +0000 add OpenBSD cvs id * Tue Dec 6 23:14:00 2011 +0000 needs a homedir to chroot to; use /var/empty * Tue Dec 6 23:13:24 2011 +0000 daemonize in rc script, add cvs id for OpenBSD * Tue Dec 6 12:25:52 2011 -0800 Fix MASTER_SITE and HOMEPAGE * Tue Dec 6 11:57:21 2011 -0800 Switch back to using the .tar.gz file since the github CDN finally has it. * Tue Dec 6 11:55:18 2011 -0800 Update the OpenBSD package. * Tue Dec 6 11:45:28 2011 -0800 OpenBSD uid 685/686 were taken by other ports already. Switch to uid 688, reserved by sthen@ * Tue Oct 18 21:33:26 2011 -0700 Initial public release. dnscrypt-proxy-1.9.4/config.h.in000644 000765 000024 00000023251 13040635302 016170 0ustar00jstaff000000 000000 /* config.h.in. Generated from configure.ac by autoheader. */ /* Define if building universal (internal helper macro) */ #undef AC_APPLE_UNIVERSAL_BUILD /* Define to 1 if you have the `argz_add' function. */ #undef HAVE_ARGZ_ADD /* Define to 1 if you have the `argz_append' function. */ #undef HAVE_ARGZ_APPEND /* Define to 1 if you have the `argz_count' function. */ #undef HAVE_ARGZ_COUNT /* Define to 1 if you have the `argz_create_sep' function. */ #undef HAVE_ARGZ_CREATE_SEP /* Define to 1 if you have the header file. */ #undef HAVE_ARGZ_H /* Define to 1 if you have the `argz_insert' function. */ #undef HAVE_ARGZ_INSERT /* Define to 1 if you have the `argz_next' function. */ #undef HAVE_ARGZ_NEXT /* Define to 1 if you have the `argz_stringify' function. */ #undef HAVE_ARGZ_STRINGIFY /* define if you have backtrace() */ #undef HAVE_BACKTRACE /* define if you have clock_gettime() */ #undef HAVE_CLOCK_GETTIME /* Define to 1 if you have the `closedir' function. */ #undef HAVE_CLOSEDIR /* Define to 1 if you have the `crypto_box_curve25519xchacha20poly1305_open_easy_afternm' function. */ #undef HAVE_CRYPTO_BOX_CURVE25519XCHACHA20POLY1305_OPEN_EASY_AFTERNM /* Define to 1 if you have the `crypto_box_easy_afternm' function. */ #undef HAVE_CRYPTO_BOX_EASY_AFTERNM /* Define to 1 if you have the `crypto_core_hchacha20' function. */ #undef HAVE_CRYPTO_CORE_HCHACHA20 /* Define to 1 if you have the declaration of `cygwin_conv_path', and to 0 if you don't. */ #undef HAVE_DECL_CYGWIN_CONV_PATH /* Define to 1 if you have the header file. */ #undef HAVE_DIRENT_H /* Define if you have the GNU dld library. */ #undef HAVE_DLD /* Define to 1 if you have the header file. */ #undef HAVE_DLD_H /* Define to 1 if you have the `dlerror' function. */ #undef HAVE_DLERROR /* Define to 1 if you have the header file. */ #undef HAVE_DLFCN_H /* Define to 1 if you have the header file. */ #undef HAVE_DL_H /* Define if you have the _dyld_func_lookup function. */ #undef HAVE_DYLD /* Define to 1 if the system has the 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" >&6; } if ${lt_cv_prog_gnu_ld+:} false; then : $as_echo_n "(cached) " >&6 else # I'd rather use --version here, but apparently some GNU lds only accept -v. case `$LD -v 2>&1 &5 $as_echo "$lt_cv_prog_gnu_ld" >&6; } with_gnu_ld=$lt_cv_prog_gnu_ld { $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5 $as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; } if ${lt_cv_path_NM+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NM"; then # Let the user override the test. lt_cv_path_NM=$NM else lt_nm_to_check=${ac_tool_prefix}nm if test -n "$ac_tool_prefix" && test "$build" = "$host"; then lt_nm_to_check="$lt_nm_to_check nm" fi for lt_tmp_nm in $lt_nm_to_check; do lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do IFS=$lt_save_ifs test -z "$ac_dir" && ac_dir=. tmp_nm=$ac_dir/$lt_tmp_nm if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then # Check to see if the nm accepts a BSD-compat flag. # Adding the 'sed 1q' prevents false positives on HP-UX, which says: # nm: unknown option "B" ignored # Tru64's nm complains that /dev/null is an invalid object file # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty case $build_os in mingw*) lt_bad_file=conftest.nm/nofile ;; *) lt_bad_file=/dev/null ;; esac case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in *$lt_bad_file* | *'Invalid file or object type'*) lt_cv_path_NM="$tmp_nm -B" break 2 ;; *) case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in */dev/null*) lt_cv_path_NM="$tmp_nm -p" break 2 ;; *) lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but continue # so that we can try to find one that supports BSD flags ;; esac ;; esac fi done IFS=$lt_save_ifs done : ${lt_cv_path_NM=no} fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5 $as_echo "$lt_cv_path_NM" >&6; } if test no != "$lt_cv_path_NM"; then NM=$lt_cv_path_NM else # Didn't find any BSD compatible name lister, look for dumpbin. if test -n "$DUMPBIN"; then : # Let the user override the test. else if test -n "$ac_tool_prefix"; then for ac_prog in dumpbin "link -dump" do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DUMPBIN+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DUMPBIN"; then ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DUMPBIN=$ac_cv_prog_DUMPBIN if test -n "$DUMPBIN"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5 $as_echo "$DUMPBIN" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$DUMPBIN" && break done fi if test -z "$DUMPBIN"; then ac_ct_DUMPBIN=$DUMPBIN for ac_prog in dumpbin "link -dump" do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DUMPBIN"; then ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DUMPBIN="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN if test -n "$ac_ct_DUMPBIN"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5 $as_echo "$ac_ct_DUMPBIN" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_DUMPBIN" && break done if test "x$ac_ct_DUMPBIN" = x; then DUMPBIN=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DUMPBIN=$ac_ct_DUMPBIN fi fi case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in *COFF*) DUMPBIN="$DUMPBIN -symbols -headers" ;; *) DUMPBIN=: ;; esac fi if test : != "$DUMPBIN"; then NM=$DUMPBIN fi fi test -z "$NM" && NM=nm { $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5 $as_echo_n "checking the name lister ($NM) interface... " >&6; } if ${lt_cv_nm_interface+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_nm_interface="BSD nm" echo "int some_variable = 0;" > conftest.$ac_ext (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) (eval "$ac_compile" 2>conftest.err) cat conftest.err >&5 (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) cat conftest.err >&5 (eval echo "\"\$as_me:$LINENO: output\"" >&5) cat conftest.out >&5 if $GREP 'External.*some_variable' conftest.out > /dev/null; then lt_cv_nm_interface="MS dumpbin" fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 $as_echo "$lt_cv_nm_interface" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 $as_echo_n "checking whether ln -s works... 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Even if it were fixed, the result of this # check would be larger than it should be. lt_cv_sys_max_cmd_len=12288; # 12K is about right ;; gnu*) # Under GNU Hurd, this test is not required because there is # no limit to the length of command line arguments. # Libtool will interpret -1 as no limit whatsoever lt_cv_sys_max_cmd_len=-1; ;; cygwin* | mingw* | cegcc*) # On Win9x/ME, this test blows up -- it succeeds, but takes # about 5 minutes as the teststring grows exponentially. # Worse, since 9x/ME are not pre-emptively multitasking, # you end up with a "frozen" computer, even though with patience # the test eventually succeeds (with a max line length of 256k). # Instead, let's just punt: use the minimum linelength reported by # all of the supported platforms: 8192 (on NT/2K/XP). lt_cv_sys_max_cmd_len=8192; ;; mint*) # On MiNT this can take a long time and run out of memory. lt_cv_sys_max_cmd_len=8192; ;; amigaos*) # On AmigaOS with pdksh, this test takes hours, literally. # So we just punt and use a minimum line length of 8192. lt_cv_sys_max_cmd_len=8192; ;; bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*) # This has been around since 386BSD, at least. Likely further. if test -x /sbin/sysctl; then lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` elif test -x /usr/sbin/sysctl; then lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` else lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs fi # And add a safety zone lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` ;; interix*) # We know the value 262144 and hardcode it with a safety zone (like BSD) lt_cv_sys_max_cmd_len=196608 ;; os2*) # The test takes a long time on OS/2. lt_cv_sys_max_cmd_len=8192 ;; osf*) # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test X`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test 17 != "$i" # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. It appears as though 1/2 is a usable value. lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` fi ;; esac fi if test -n "$lt_cv_sys_max_cmd_len"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 $as_echo "$lt_cv_sys_max_cmd_len" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 $as_echo "none" >&6; } fi max_cmd_len=$lt_cv_sys_max_cmd_len : ${CP="cp -f"} : ${MV="mv -f"} : ${RM="rm -f"} if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then lt_unset=unset else lt_unset=false fi # test EBCDIC or ASCII case `echo X|tr X '\101'` in A) # ASCII based system # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr lt_SP2NL='tr \040 \012' lt_NL2SP='tr \015\012 \040\040' ;; *) # EBCDIC based system lt_SP2NL='tr \100 \n' lt_NL2SP='tr \r\n \100\100' ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 $as_echo_n "checking how to convert $build file names to $host format... " >&6; } if ${lt_cv_to_host_file_cmd+:} false; then : $as_echo_n "(cached) " >&6 else case $host in *-*-mingw* ) case $build in *-*-mingw* ) # actually msys lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 ;; *-*-cygwin* ) lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 ;; * ) # otherwise, assume *nix lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 ;; esac ;; *-*-cygwin* ) case $build in *-*-mingw* ) # actually msys lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin ;; *-*-cygwin* ) lt_cv_to_host_file_cmd=func_convert_file_noop ;; * ) # otherwise, assume *nix lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin ;; esac ;; * ) # unhandled hosts (and "normal" native builds) lt_cv_to_host_file_cmd=func_convert_file_noop ;; esac fi to_host_file_cmd=$lt_cv_to_host_file_cmd { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5 $as_echo "$lt_cv_to_host_file_cmd" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5 $as_echo_n "checking how to convert $build file names to toolchain format... 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" >&6; } if ${lt_cv_ld_reload_flag+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_reload_flag='-r' fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 $as_echo "$lt_cv_ld_reload_flag" >&6; } reload_flag=$lt_cv_ld_reload_flag case $reload_flag in "" | " "*) ;; *) reload_flag=" $reload_flag" ;; esac reload_cmds='$LD$reload_flag -o $output$reload_objs' case $host_os in cygwin* | mingw* | pw32* | cegcc*) if test yes != "$GCC"; then reload_cmds=false fi ;; darwin*) if test yes = "$GCC"; then reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' else reload_cmds='$LD$reload_flag -o $output$reload_objs' fi ;; esac if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. set dummy ${ac_tool_prefix}objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OBJDUMP"; then ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OBJDUMP=$ac_cv_prog_OBJDUMP if test -n "$OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 $as_echo "$OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OBJDUMP"; then ac_ct_OBJDUMP=$OBJDUMP # Extract the first word of "objdump", so it can be a program name with args. set dummy objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OBJDUMP"; then ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OBJDUMP="objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP if test -n "$ac_ct_OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 $as_echo "$ac_ct_OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OBJDUMP" = x; then OBJDUMP="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OBJDUMP=$ac_ct_OBJDUMP fi else OBJDUMP="$ac_cv_prog_OBJDUMP" fi test -z "$OBJDUMP" && OBJDUMP=objdump { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 $as_echo_n "checking how to recognize dependent libraries... " >&6; } if ${lt_cv_deplibs_check_method+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_file_magic_cmd='$MAGIC_CMD' lt_cv_file_magic_test_file= lt_cv_deplibs_check_method='unknown' # Need to set the preceding variable on all platforms that support # interlibrary dependencies. # 'none' -- dependencies not supported. # 'unknown' -- same as none, but documents that we really don't know. # 'pass_all' -- all dependencies passed with no checks. # 'test_compile' -- check by making test program. # 'file_magic [[regex]]' -- check by looking for files in library path # that responds to the $file_magic_cmd with a given extended regex. # If you have 'file' or equivalent on your system and you're not sure # whether 'pass_all' will *always* work, you probably want this one. case $host_os in aix[4-9]*) lt_cv_deplibs_check_method=pass_all ;; beos*) lt_cv_deplibs_check_method=pass_all ;; bsdi[45]*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' lt_cv_file_magic_cmd='/usr/bin/file -L' lt_cv_file_magic_test_file=/shlib/libc.so ;; cygwin*) # func_win32_libid is a shell function defined in ltmain.sh lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' ;; mingw* | pw32*) # Base MSYS/MinGW do not provide the 'file' command needed by # func_win32_libid shell function, so use a weaker test based on 'objdump', # unless we find 'file', for example because we are cross-compiling. if ( file / ) >/dev/null 2>&1; then lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' else # Keep this pattern in sync with the one in func_win32_libid. lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' lt_cv_file_magic_cmd='$OBJDUMP -f' fi ;; cegcc*) # use the weaker test based on 'objdump'. See mingw*. lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' lt_cv_file_magic_cmd='$OBJDUMP -f' ;; darwin* | rhapsody*) lt_cv_deplibs_check_method=pass_all ;; freebsd* | dragonfly*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then case $host_cpu in i*86 ) # Not sure whether the presence of OpenBSD here was a mistake. # Let's accept both of them until this is cleared up. lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` ;; esac else lt_cv_deplibs_check_method=pass_all fi ;; haiku*) lt_cv_deplibs_check_method=pass_all ;; hpux10.20* | hpux11*) lt_cv_file_magic_cmd=/usr/bin/file case $host_cpu in ia64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so ;; hppa*64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl ;; *) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' lt_cv_file_magic_test_file=/usr/lib/libc.sl ;; esac ;; interix[3-9]*) # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' ;; irix5* | irix6* | nonstopux*) case $LD in *-32|*"-32 ") libmagic=32-bit;; *-n32|*"-n32 ") libmagic=N32;; *-64|*"-64 ") libmagic=64-bit;; *) libmagic=never-match;; esac lt_cv_deplibs_check_method=pass_all ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) lt_cv_deplibs_check_method=pass_all ;; netbsd*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' fi ;; newos6*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=/usr/lib/libnls.so ;; *nto* | *qnx*) lt_cv_deplibs_check_method=pass_all ;; openbsd* | bitrig*) if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' fi ;; osf3* | osf4* | osf5*) lt_cv_deplibs_check_method=pass_all ;; rdos*) lt_cv_deplibs_check_method=pass_all ;; solaris*) lt_cv_deplibs_check_method=pass_all ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) lt_cv_deplibs_check_method=pass_all ;; sysv4 | sysv4.3*) case $host_vendor in motorola) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` ;; ncr) lt_cv_deplibs_check_method=pass_all ;; sequent) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;; sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; os2*) lt_cv_deplibs_check_method=pass_all ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 $as_echo "$lt_cv_deplibs_check_method" >&6; } file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. set dummy ${ac_tool_prefix}dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DLLTOOL"; then ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DLLTOOL=$ac_cv_prog_DLLTOOL if test -n "$DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 $as_echo "$DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DLLTOOL"; then ac_ct_DLLTOOL=$DLLTOOL # Extract the first word of "dlltool", so it can be a program name with args. set dummy dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DLLTOOL"; then ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DLLTOOL="dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL if test -n "$ac_ct_DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 $as_echo "$ac_ct_DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DLLTOOL" = x; then DLLTOOL="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DLLTOOL=$ac_ct_DLLTOOL fi else DLLTOOL="$ac_cv_prog_DLLTOOL" fi test -z "$DLLTOOL" && DLLTOOL=dlltool { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 $as_echo_n "checking how to associate runtime and link libraries... " >&6; } if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh; # decide which one to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd=$ECHO ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 $as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO if test -n "$ac_tool_prefix"; then for ac_prog in ar do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$AR"; then ac_cv_prog_AR="$AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_AR="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi AR=$ac_cv_prog_AR if test -n "$AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 $as_echo "$AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$AR" && break done fi if test -z "$AR"; then ac_ct_AR=$AR for ac_prog in ar do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_AR"; then ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_AR="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_AR=$ac_cv_prog_ac_ct_AR if test -n "$ac_ct_AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 $as_echo "$ac_ct_AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_AR" && break done if test "x$ac_ct_AR" = x; then AR="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac AR=$ac_ct_AR fi fi : ${AR=ar} : ${AR_FLAGS=cru} { $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 $as_echo_n "checking for archiver @FILE support... " >&6; } if ${lt_cv_ar_at_file+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ar_at_file=no cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : echo conftest.$ac_objext > conftest.lst lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -eq "$ac_status"; then # Ensure the archiver fails upon bogus file names. rm -f conftest.$ac_objext libconftest.a { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -ne "$ac_status"; then lt_cv_ar_at_file=@ fi fi rm -f conftest.* libconftest.a fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 $as_echo "$lt_cv_ar_at_file" >&6; } if test no = "$lt_cv_ar_at_file"; then archiver_list_spec= else archiver_list_spec=$lt_cv_ar_at_file fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. set dummy ${ac_tool_prefix}strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$STRIP"; then ac_cv_prog_STRIP="$STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_STRIP="${ac_tool_prefix}strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi STRIP=$ac_cv_prog_STRIP if test -n "$STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 $as_echo "$STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_STRIP"; then ac_ct_STRIP=$STRIP # Extract the first word of "strip", so it can be a program name with args. set dummy strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_STRIP"; then ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_STRIP="strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP if test -n "$ac_ct_STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 $as_echo "$ac_ct_STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_STRIP" = x; then STRIP=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac STRIP=$ac_ct_STRIP fi else STRIP="$ac_cv_prog_STRIP" fi test -z "$STRIP" && STRIP=: if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. set dummy ${ac_tool_prefix}ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi RANLIB=$ac_cv_prog_RANLIB if test -n "$RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 $as_echo "$RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_RANLIB"; then ac_ct_RANLIB=$RANLIB # Extract the first word of "ranlib", so it can be a program name with args. set dummy ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_RANLIB"; then ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_RANLIB="ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB if test -n "$ac_ct_RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 $as_echo "$ac_ct_RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_RANLIB" = x; then RANLIB=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac RANLIB=$ac_ct_RANLIB fi else RANLIB="$ac_cv_prog_RANLIB" fi test -z "$RANLIB" && RANLIB=: # Determine commands to create old-style static archives. old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' old_postinstall_cmds='chmod 644 $oldlib' old_postuninstall_cmds= if test -n "$RANLIB"; then case $host_os in bitrig* | openbsd*) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" ;; *) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" ;; esac old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" fi case $host_os in darwin*) lock_old_archive_extraction=yes ;; *) lock_old_archive_extraction=no ;; esac # If no C compiler was specified, use CC. LTCC=${LTCC-"$CC"} # If no C compiler flags were specified, use CFLAGS. LTCFLAGS=${LTCFLAGS-"$CFLAGS"} # Allow CC to be a program name with arguments. compiler=$CC # Check for command to grab the raw symbol name followed by C symbol from nm. { $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 $as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } if ${lt_cv_sys_global_symbol_pipe+:} false; then : $as_echo_n "(cached) " >&6 else # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[BCDEGRST]' # Regexp to match symbols that can be accessed directly from C. sympat='\([_A-Za-z][_A-Za-z0-9]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[BCDT]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[ABCDGISTW]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[ABCDEGRST]' fi ;; irix* | nonstopux*) symcode='[BCDEGRST]' ;; osf*) symcode='[BCDEGQRST]' ;; solaris*) symcode='[BDRT]' ;; sco3.2v5*) symcode='[DT]' ;; sysv4.2uw2*) symcode='[DT]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[ABDT]' ;; sysv4) symcode='[DFNSTU]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[ABCDGIRSTW]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK '"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then # Now try to grab the symbols. nlist=conftest.nm if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 (eval $ac_link) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&5 fi else echo "cannot find nm_test_var in $nlist" >&5 fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 fi else echo "$progname: failed program was:" >&5 cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done fi if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 $as_echo "failed" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 $as_echo "ok" >&6; } fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then nm_file_list_spec='@' fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 $as_echo_n "checking for sysroot... " >&6; } # Check whether --with-sysroot was given. if test "${with_sysroot+set}" = set; then : withval=$with_sysroot; else with_sysroot=no fi lt_sysroot= case $with_sysroot in #( yes) if test yes = "$GCC"; then lt_sysroot=`$CC --print-sysroot 2>/dev/null` fi ;; #( /*) lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` ;; #( no|'') ;; #( *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5 $as_echo "$with_sysroot" >&6; } as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 $as_echo "${lt_sysroot:-no}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5 $as_echo_n "checking for a working dd... " >&6; } if ${ac_cv_path_lt_DD+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i : ${lt_DD:=$DD} if test -z "$lt_DD"; then ac_path_lt_DD_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in dd; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext" as_fn_executable_p "$ac_path_lt_DD" || continue if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: fi $ac_path_lt_DD_found && break 3 done done done IFS=$as_save_IFS if test -z "$ac_cv_path_lt_DD"; then : fi else ac_cv_path_lt_DD=$lt_DD fi rm -f conftest.i conftest2.i conftest.out fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5 $as_echo "$ac_cv_path_lt_DD" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5 $as_echo_n "checking how to truncate binary pipes... " >&6; } if ${lt_cv_truncate_bin+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i lt_cv_truncate_bin= if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" fi rm -f conftest.i conftest2.i conftest.out test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5 $as_echo "$lt_cv_truncate_bin" >&6; } # Calculate cc_basename. Skip known compiler wrappers and cross-prefix. func_cc_basename () { for cc_temp in $*""; do case $cc_temp in compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; \-*) ;; *) break;; esac done func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` } # Check whether --enable-libtool-lock was given. if test "${enable_libtool_lock+set}" = set; then : enableval=$enable_libtool_lock; fi test no = "$enable_libtool_lock" || enable_libtool_lock=yes # Some flags need to be propagated to the compiler or linker for good # libtool support. case $host in ia64-*-hpux*) # Find out what ABI is being produced by ac_compile, and set mode # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.$ac_objext` in *ELF-32*) HPUX_IA64_MODE=32 ;; *ELF-64*) HPUX_IA64_MODE=64 ;; esac fi rm -rf conftest* ;; *-*-irix6*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then if test yes = "$lt_cv_prog_gnu_ld"; then case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -melf32bsmip" ;; *N32*) LD="${LD-ld} -melf32bmipn32" ;; *64-bit*) LD="${LD-ld} -melf64bmip" ;; esac else case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -32" ;; *N32*) LD="${LD-ld} -n32" ;; *64-bit*) LD="${LD-ld} -64" ;; esac fi fi rm -rf conftest* ;; mips64*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then emul=elf case `/usr/bin/file conftest.$ac_objext` in *32-bit*) emul="${emul}32" ;; *64-bit*) emul="${emul}64" ;; esac case `/usr/bin/file conftest.$ac_objext` in *MSB*) emul="${emul}btsmip" ;; *LSB*) emul="${emul}ltsmip" ;; esac case `/usr/bin/file conftest.$ac_objext` in *N32*) emul="${emul}n32" ;; esac LD="${LD-ld} -m $emul" fi rm -rf conftest* ;; x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ s390*-*linux*|s390*-*tpf*|sparc*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. Note that the listed cases only cover the # situations where additional linker options are needed (such as when # doing 32-bit compilation for a host where ld defaults to 64-bit, or # vice versa); the common cases where no linker options are needed do # not appear in the list. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *32-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_i386_fbsd" ;; x86_64-*linux*) case `/usr/bin/file conftest.o` in *x86-64*) LD="${LD-ld} -m elf32_x86_64" ;; *) LD="${LD-ld} -m elf_i386" ;; esac ;; powerpc64le-*linux*) LD="${LD-ld} -m elf32lppclinux" ;; powerpc64-*linux*) LD="${LD-ld} -m elf32ppclinux" ;; s390x-*linux*) LD="${LD-ld} -m elf_s390" ;; sparc64-*linux*) LD="${LD-ld} -m elf32_sparc" ;; esac ;; *64-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_x86_64_fbsd" ;; x86_64-*linux*) LD="${LD-ld} -m elf_x86_64" ;; powerpcle-*linux*) LD="${LD-ld} -m elf64lppc" ;; powerpc-*linux*) LD="${LD-ld} -m elf64ppc" ;; s390*-*linux*|s390*-*tpf*) LD="${LD-ld} -m elf64_s390" ;; sparc*-*linux*) LD="${LD-ld} -m elf64_sparc" ;; esac ;; esac fi rm -rf conftest* ;; *-*-sco3.2v5*) # On SCO OpenServer 5, we need -belf to get full-featured binaries. SAVE_CFLAGS=$CFLAGS CFLAGS="$CFLAGS -belf" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 $as_echo_n "checking whether the C compiler needs -belf... " >&6; } if ${lt_cv_cc_needs_belf+:} false; then : $as_echo_n "(cached) " >&6 else ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_cc_needs_belf=yes else lt_cv_cc_needs_belf=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 $as_echo "$lt_cv_cc_needs_belf" >&6; } if test yes != "$lt_cv_cc_needs_belf"; then # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf CFLAGS=$SAVE_CFLAGS fi ;; *-*solaris*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *64-bit*) case $lt_cv_prog_gnu_ld in yes*) case $host in i?86-*-solaris*|x86_64-*-solaris*) LD="${LD-ld} -m elf_x86_64" ;; sparc*-*-solaris*) LD="${LD-ld} -m elf64_sparc" ;; esac # GNU ld 2.21 introduced _sol2 emulations. Use them if available. if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then LD=${LD-ld}_sol2 fi ;; *) if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then LD="${LD-ld} -64" fi ;; esac ;; esac fi rm -rf conftest* ;; esac need_locks=$enable_libtool_lock if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. set dummy ${ac_tool_prefix}mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$MANIFEST_TOOL"; then ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL if test -n "$MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 $as_echo "$MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_MANIFEST_TOOL"; then ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL # Extract the first word of "mt", so it can be a program name with args. set dummy mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_MANIFEST_TOOL"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL if test -n "$ac_ct_MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 $as_echo "$ac_ct_MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_MANIFEST_TOOL" = x; then MANIFEST_TOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL fi else MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" fi test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 $as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } if ${lt_cv_path_mainfest_tool+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&5 if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 $as_echo "$lt_cv_path_mainfest_tool" >&6; } if test yes != "$lt_cv_path_mainfest_tool"; then MANIFEST_TOOL=: fi case $host_os in rhapsody* | darwin*) if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DSYMUTIL"; then ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DSYMUTIL=$ac_cv_prog_DSYMUTIL if test -n "$DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 $as_echo "$DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DSYMUTIL"; then ac_ct_DSYMUTIL=$DSYMUTIL # Extract the first word of "dsymutil", so it can be a program name with args. set dummy dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DSYMUTIL"; then ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL if test -n "$ac_ct_DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 $as_echo "$ac_ct_DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DSYMUTIL" = x; then DSYMUTIL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DSYMUTIL=$ac_ct_DSYMUTIL fi else DSYMUTIL="$ac_cv_prog_DSYMUTIL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. set dummy ${ac_tool_prefix}nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NMEDIT"; then ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi NMEDIT=$ac_cv_prog_NMEDIT if test -n "$NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 $as_echo "$NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_NMEDIT"; then ac_ct_NMEDIT=$NMEDIT # Extract the first word of "nmedit", so it can be a program name with args. set dummy nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_NMEDIT"; then ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_NMEDIT="nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT if test -n "$ac_ct_NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 $as_echo "$ac_ct_NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_NMEDIT" = x; then NMEDIT=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac NMEDIT=$ac_ct_NMEDIT fi else NMEDIT="$ac_cv_prog_NMEDIT" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. set dummy ${ac_tool_prefix}lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$LIPO"; then ac_cv_prog_LIPO="$LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_LIPO="${ac_tool_prefix}lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi LIPO=$ac_cv_prog_LIPO if test -n "$LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 $as_echo "$LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_LIPO"; then ac_ct_LIPO=$LIPO # Extract the first word of "lipo", so it can be a program name with args. set dummy lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_LIPO"; then ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_LIPO="lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO if test -n "$ac_ct_LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 $as_echo "$ac_ct_LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_LIPO" = x; then LIPO=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac LIPO=$ac_ct_LIPO fi else LIPO="$ac_cv_prog_LIPO" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. set dummy ${ac_tool_prefix}otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL"; then ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL="${ac_tool_prefix}otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL=$ac_cv_prog_OTOOL if test -n "$OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 $as_echo "$OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL"; then ac_ct_OTOOL=$OTOOL # Extract the first word of "otool", so it can be a program name with args. set dummy otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL"; then ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL="otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL if test -n "$ac_ct_OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 $as_echo "$ac_ct_OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL" = x; then OTOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL=$ac_ct_OTOOL fi else OTOOL="$ac_cv_prog_OTOOL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. set dummy ${ac_tool_prefix}otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL64"; then ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL64=$ac_cv_prog_OTOOL64 if test -n "$OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 $as_echo "$OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL64"; then ac_ct_OTOOL64=$OTOOL64 # Extract the first word of "otool64", so it can be a program name with args. set dummy otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL64"; then ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL64="otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 if test -n "$ac_ct_OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 $as_echo "$ac_ct_OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL64" = x; then OTOOL64=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL64=$ac_ct_OTOOL64 fi else OTOOL64="$ac_cv_prog_OTOOL64" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 $as_echo_n "checking for -single_module linker flag... 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"Unknown argument to --with-aix-soname" "$LINENO" 5 ;; esac lt_cv_with_aix_soname=$with_aix_soname else if ${lt_cv_with_aix_soname+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_with_aix_soname=aix fi with_aix_soname=$lt_cv_with_aix_soname fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5 $as_echo "$with_aix_soname" >&6; } if test aix != "$with_aix_soname"; then # For the AIX way of multilib, we name the shared archive member # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, # the AIX toolchain works better with OBJECT_MODE set (default 32). if test 64 = "${OBJECT_MODE-32}"; then shared_archive_member_spec=shr_64 else shared_archive_member_spec=shr fi fi ;; *) with_aix_soname=aix ;; esac # This can be used to rebuild libtool when needed LIBTOOL_DEPS=$ltmain # Always use our own libtool. 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then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag else if test ia64 = "$host_cpu"; then hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib' allow_undefined_flag="-z nodefs" archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" else # Determine the default libpath from the value encoded in an # empty executable. if test set = "${lt_cv_aix_libpath+set}"; then aix_libpath=$lt_cv_aix_libpath else if ${lt_cv_aix_libpath_+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" # Warning - without using the other run time loading flags, # -berok will link without error, but may produce a broken library. no_undefined_flag=' $wl-bernotok' allow_undefined_flag=' $wl-berok' if test yes = "$with_gnu_ld"; then # We only use this code for GNU lds that support --whole-archive. whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive' else # Exported symbols can be pulled into shared objects from archives whole_archive_flag_spec='$convenience' fi archive_cmds_need_lc=yes archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' # -brtl affects multiple linker settings, -berok does not and is overridden later compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' if test svr4 != "$with_aix_soname"; then # This is similar to how AIX traditionally builds its shared libraries. archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' fi if test aix != "$with_aix_soname"; then archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' else # used by -dlpreopen to get the symbols archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir' fi archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d' fi fi ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' archive_expsym_cmds='' ;; m68k) archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' hardcode_libdir_flag_spec='-L$libdir' hardcode_minus_L=yes ;; esac ;; bsdi[45]*) export_dynamic_flag_spec=-rdynamic ;; cygwin* | mingw* | pw32* | cegcc*) # When not using gcc, we currently assume that we are using # Microsoft Visual C++. # hardcode_libdir_flag_spec is actually meaningless, as there is # no search path for DLLs. case $cc_basename in cl*) # Native MSVC hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported always_export_symbols=yes file_list_spec='@' # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then cp "$export_symbols" "$output_objdir/$soname.def"; echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; else $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; fi~ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ linknames=' # The linker will not automatically build a static lib if we build a DLL. # _LT_TAGVAR(old_archive_from_new_cmds, )='true' enable_shared_with_static_runtimes=yes exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' # Don't use ranlib old_postinstall_cmds='chmod 644 $oldlib' postlink_cmds='lt_outputfile="@OUTPUT@"~ lt_tool_outputfile="@TOOL_OUTPUT@"~ case $lt_outputfile in *.exe|*.EXE) ;; *) lt_outputfile=$lt_outputfile.exe lt_tool_outputfile=$lt_tool_outputfile.exe ;; esac~ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; $RM "$lt_outputfile.manifest"; fi' ;; *) # Assume MSVC wrapper hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' # The linker will automatically build a .lib file if we build a DLL. old_archive_from_new_cmds='true' # FIXME: Should let the user specify the lib program. old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' enable_shared_with_static_runtimes=yes ;; esac ;; darwin* | rhapsody*) archive_cmds_need_lc=no hardcode_direct=no hardcode_automatic=yes hardcode_shlibpath_var=unsupported if test yes = "$lt_cv_ld_force_load"; then whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' else whole_archive_flag_spec='' fi link_all_deplibs=yes allow_undefined_flag=$_lt_dar_allow_undefined case $cc_basename in ifort*|nagfor*) _lt_dar_can_shared=yes ;; *) _lt_dar_can_shared=$GCC ;; esac if test yes = "$_lt_dar_can_shared"; then output_verbose_link_cmd=func_echo_all archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" else ld_shlibs=no fi ;; dgux*) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_libdir_flag_spec='-L$libdir' hardcode_shlibpath_var=no ;; # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor # support. 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linux*) case $cc_basename in tcc*) # Fabrice Bellard et al's Tiny C Compiler ld_shlibs=yes archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' ;; esac ;; netbsd*) if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out else archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF fi hardcode_libdir_flag_spec='-R$libdir' hardcode_direct=yes hardcode_shlibpath_var=no ;; newsos6) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_direct=yes hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: hardcode_shlibpath_var=no ;; *nto* | *qnx*) ;; openbsd* | bitrig*) if test -f /usr/libexec/ld.so; then hardcode_direct=yes hardcode_shlibpath_var=no hardcode_direct_absolute=yes if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' hardcode_libdir_flag_spec='$wl-rpath,$libdir' export_dynamic_flag_spec='$wl-E' else archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' hardcode_libdir_flag_spec='$wl-rpath,$libdir' fi else ld_shlibs=no fi ;; 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fi~ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' enable_shared_with_static_runtimes=yes ;; osf3*) if test yes = "$GCC"; then allow_undefined_flag=' $wl-expect_unresolved $wl\*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' else allow_undefined_flag=' -expect_unresolved \*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' fi archive_cmds_need_lc='no' hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: ;; 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The import file would start with # the line '#! .'. This would cause the generated library to # depend on '.', always an invalid library. This was fixed in # development snapshots of GCC prior to 3.0. case $host_os in aix4 | aix4.[01] | aix4.[01].*) if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' echo ' yes ' echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then : else can_build_shared=no fi ;; esac # Using Import Files as archive members, it is possible to support # filename-based versioning of shared library archives on AIX. While # this would work for both with and without runtime linking, it will # prevent static linking of such archives. So we do filename-based # shared library versioning with .so extension only, which is used # when both runtime linking and shared linking is enabled. # Unfortunately, runtime linking may impact performance, so we do # not want this to be the default eventually. Also, we use the # versioned .so libs for executables only if there is the -brtl # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. # To allow for filename-based versioning support, we need to create # libNAME.so.V as an archive file, containing: # *) an Import File, referring to the versioned filename of the # archive as well as the shared archive member, telling the # bitwidth (32 or 64) of that shared object, and providing the # list of exported symbols of that shared object, eventually # decorated with the 'weak' keyword # *) the shared object with the F_LOADONLY flag set, to really avoid # it being seen by the linker. # At run time we better use the real file rather than another symlink, # but for link time we create the symlink libNAME.so -> libNAME.so.V case $with_aix_soname,$aix_use_runtimelinking in # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct # soname into executable. Probably we can add versioning support to # collect2, so additional links can be useful in future. aix,yes) # traditional libtool dynamic_linker='AIX unversionable lib.so' # If using run time linking (on AIX 4.2 or later) use lib.so # instead of lib.a to let people know that these are not # typical AIX shared libraries. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; aix,no) # traditional AIX only dynamic_linker='AIX lib.a(lib.so.V)' # We preserve .a as extension for shared libraries through AIX4.2 # and later when we are not doing run time linking. library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' ;; svr4,*) # full svr4 only dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,yes) # both, prefer svr4 dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # unpreferred sharedlib libNAME.a needs extra handling postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,no) # both, prefer aix dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' ;; esac shlibpath_var=LIBPATH fi ;; amigaos*) case $host_cpu in powerpc) # Since July 2007 AmigaOS4 officially supports .so libraries. # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; m68k) library_names_spec='$libname.ixlibrary $libname.a' # Create ${libname}_ixlibrary.a entries in /sys/libs. finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' ;; esac ;; beos*) library_names_spec='$libname$shared_ext' dynamic_linker="$host_os ld.so" shlibpath_var=LIBRARY_PATH ;; bsdi[45]*) version_type=linux # correct to gnu/linux during the next big refactor need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' shlibpath_var=LD_LIBRARY_PATH sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" # the default ld.so.conf also contains /usr/contrib/lib and # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow # libtool to hard-code these into programs ;; cygwin* | mingw* | pw32* | cegcc*) version_type=windows shrext_cmds=.dll need_version=no need_lib_prefix=no case $GCC,$cc_basename in yes,*) # gcc library_names_spec='$libname.dll.a' # DLL is installed to $(libdir)/../bin by postinstall_cmds postinstall_cmds='base_file=`basename \$file`~ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ dldir=$destdir/`dirname \$dlpath`~ test -d \$dldir || mkdir -p \$dldir~ $install_prog $dir/$dlname \$dldir/$dlname~ chmod a+x \$dldir/$dlname~ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; fi' postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ dlpath=$dir/\$dldll~ $RM \$dlpath' shlibpath_overrides_runpath=yes case $host_os in cygwin*) # Cygwin DLLs use 'cyg' prefix rather than 'lib' soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" ;; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" sys_lib_dlsearch_path_spec=/usr/lib/hpux32 else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" sys_lib_dlsearch_path_spec=/usr/lib/hpux64 fi ;; hppa*64*) shrext_cmds='.sl' hardcode_into_libs=yes dynamic_linker="$host_os dld.sl" shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec ;; *) shrext_cmds='.sl' dynamic_linker="$host_os dld.sl" shlibpath_var=SHLIB_PATH shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' ;; esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[3-9]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. hardcode_libdir_flag_spec='-L$libdir' ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no # Some binutils ld are patched to set DT_RUNPATH if ${lt_cv_shlibpath_overrides_runpath+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_shlibpath_overrides_runpath=no save_LDFLAGS=$LDFLAGS save_libdir=$libdir eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : lt_cv_shlibpath_overrides_runpath=yes fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS=$save_LDFLAGS libdir=$save_libdir fi shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes # Ideally, we could use ldconfig to report *all* directores which are # searched for libraries, however this is still not possible. 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esac fi sys_lib_dlsearch_path_spec='/usr/lib' ;; tpf*) # TPF is a cross-target only. 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" >&6; } hardcode_action= if test -n "$hardcode_libdir_flag_spec" || test -n "$runpath_var" || test yes = "$hardcode_automatic"; then # We can hardcode non-existent directories. if test no != "$hardcode_direct" && # If the only mechanism to avoid hardcoding is shlibpath_var, we # have to relink, otherwise we might link with an installed library # when we should be linking with a yet-to-be-installed one ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" && test no != "$hardcode_minus_L"; then # Linking always hardcodes the temporary library directory. hardcode_action=relink else # We can link without hardcoding, and we can hardcode nonexisting dirs. hardcode_action=immediate fi else # We cannot hardcode anything, or else we can only hardcode existing # directories. hardcode_action=unsupported fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5 $as_echo "$hardcode_action" >&6; } if test relink = "$hardcode_action" || test yes = "$inherit_rpath"; then # Fast installation is not supported enable_fast_install=no elif test yes = "$shlibpath_overrides_runpath" || test no = "$enable_shared"; then # Fast installation is not necessary enable_fast_install=needless fi if test yes != "$enable_dlopen"; then enable_dlopen=unknown enable_dlopen_self=unknown enable_dlopen_self_static=unknown else lt_cv_dlopen=no lt_cv_dlopen_libs= case $host_os in beos*) lt_cv_dlopen=load_add_on lt_cv_dlopen_libs= lt_cv_dlopen_self=yes ;; mingw* | pw32* | cegcc*) lt_cv_dlopen=LoadLibrary lt_cv_dlopen_libs= ;; cygwin*) lt_cv_dlopen=dlopen lt_cv_dlopen_libs= ;; darwin*) # if libdl is installed we need to link against it { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 $as_echo_n "checking for dlopen in -ldl... " >&6; } if ${ac_cv_lib_dl_dlopen+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldl $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char dlopen (); int main () { return dlopen (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_dl_dlopen=yes else ac_cv_lib_dl_dlopen=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 $as_echo "$ac_cv_lib_dl_dlopen" >&6; } if test "x$ac_cv_lib_dl_dlopen" = xyes; then : lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl else lt_cv_dlopen=dyld lt_cv_dlopen_libs= lt_cv_dlopen_self=yes fi ;; tpf*) # Don't try to run any link tests for TPF. We know it's impossible # because TPF is a cross-compiler, and we know how we open DSOs. lt_cv_dlopen=dlopen lt_cv_dlopen_libs= lt_cv_dlopen_self=no ;; *) ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load" if test "x$ac_cv_func_shl_load" = xyes; then : lt_cv_dlopen=shl_load else { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5 $as_echo_n "checking for shl_load in -ldld... " >&6; } if ${ac_cv_lib_dld_shl_load+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldld $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char shl_load (); int main () { return shl_load (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_dld_shl_load=yes else ac_cv_lib_dld_shl_load=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5 $as_echo "$ac_cv_lib_dld_shl_load" >&6; } if test "x$ac_cv_lib_dld_shl_load" = xyes; then : lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld else ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" if test "x$ac_cv_func_dlopen" = xyes; then : lt_cv_dlopen=dlopen else { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 $as_echo_n "checking for dlopen in -ldl... " >&6; } if ${ac_cv_lib_dl_dlopen+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldl $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char dlopen (); int main () { return dlopen (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_dl_dlopen=yes else ac_cv_lib_dl_dlopen=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 $as_echo "$ac_cv_lib_dl_dlopen" >&6; } if test "x$ac_cv_lib_dl_dlopen" = xyes; then : lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl else { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5 $as_echo_n "checking for dlopen in -lsvld... " >&6; } if ${ac_cv_lib_svld_dlopen+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lsvld $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char dlopen (); int main () { return dlopen (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_svld_dlopen=yes else ac_cv_lib_svld_dlopen=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5 $as_echo "$ac_cv_lib_svld_dlopen" >&6; } if test "x$ac_cv_lib_svld_dlopen" = xyes; then : lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld else { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5 $as_echo_n "checking for dld_link in -ldld... " >&6; } if ${ac_cv_lib_dld_dld_link+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldld $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char dld_link (); int main () { return dld_link (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_dld_dld_link=yes else ac_cv_lib_dld_dld_link=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5 $as_echo "$ac_cv_lib_dld_dld_link" >&6; } if test "x$ac_cv_lib_dld_dld_link" = xyes; then : lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld fi fi fi fi fi fi ;; esac if test no = "$lt_cv_dlopen"; then enable_dlopen=no else enable_dlopen=yes fi case $lt_cv_dlopen in dlopen) save_CPPFLAGS=$CPPFLAGS test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" save_LDFLAGS=$LDFLAGS wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" save_LIBS=$LIBS LIBS="$lt_cv_dlopen_libs $LIBS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5 $as_echo_n "checking whether a program can dlopen itself... " >&6; } if ${lt_cv_dlopen_self+:} false; then : $as_echo_n "(cached) " >&6 else if test yes = "$cross_compiling"; then : lt_cv_dlopen_self=cross else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF #line $LINENO "configure" #include "confdefs.h" #if HAVE_DLFCN_H #include #endif #include #ifdef RTLD_GLOBAL # define LT_DLGLOBAL RTLD_GLOBAL #else # ifdef DL_GLOBAL # define LT_DLGLOBAL DL_GLOBAL # else # define LT_DLGLOBAL 0 # endif #endif /* We may have to define LT_DLLAZY_OR_NOW in the command line if we find out it does not work in some platform. */ #ifndef LT_DLLAZY_OR_NOW # ifdef RTLD_LAZY # define LT_DLLAZY_OR_NOW RTLD_LAZY # else # ifdef DL_LAZY # define LT_DLLAZY_OR_NOW DL_LAZY # else # ifdef RTLD_NOW # define LT_DLLAZY_OR_NOW RTLD_NOW # else # ifdef DL_NOW # define LT_DLLAZY_OR_NOW DL_NOW # else # define LT_DLLAZY_OR_NOW 0 # endif # endif # endif # endif #endif /* When -fvisibility=hidden is used, assume the code has been annotated correspondingly for the symbols needed. */ #if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) int fnord () __attribute__((visibility("default"))); #endif int fnord () { return 42; } int main () { void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); int status = $lt_dlunknown; if (self) { if (dlsym (self,"fnord")) status = $lt_dlno_uscore; else { if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; else puts (dlerror ()); } /* dlclose (self); */ } else puts (dlerror ()); return status; } _LT_EOF if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 (eval $ac_link) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then (./conftest; exit; ) >&5 2>/dev/null lt_status=$? case x$lt_status in x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;; x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;; x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;; esac else : # compilation failed lt_cv_dlopen_self=no fi fi rm -fr conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5 $as_echo "$lt_cv_dlopen_self" >&6; } if test yes = "$lt_cv_dlopen_self"; then wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5 $as_echo_n "checking whether a statically linked program can dlopen itself... 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AC_SYS_LARGEFILE AC_CHECK_HEADERS([sys/cdefs.h sys/feature_tests.h]) AC_CHECK_HEADERS([execinfo.h paths.h pwd.h grp.h uuid/uuid.h]) AC_CHECK_HEADERS([sandbox.h linux/filter.h linux/random.h]) AC_CHECK_HEADERS([ws2tcpip.h]) dnl Checks for typedefs, structures, and compiler characteristics. AC_C_INLINE AC_C_BIGENDIAN AC_C_RESTRICT AC_CHECK_TYPE([in_port_t], , [AC_DEFINE(in_port_t, uint16_t, [in_port_t type])], [ #include #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_WS2TCPIP_H # include #else # include # include #endif ]) AC_MSG_CHECKING([whether sin_len is defined]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include #include #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_WS2TCPIP_H # include #else # include # include #endif ]], [[ do { struct sockaddr_in a; (void) a.sin_len; } while(0) ]])],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SIN_LEN,[1],[define if you have sin_len]) ],[ AC_MSG_RESULT(no) ]) AC_MSG_CHECKING([whether __ss_family is defined]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include #include #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_WS2TCPIP_H # include #else # include # include #endif ]], [[ do { struct sockaddr_storage a; (void) a.__ss_family; } while(0) ]])],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE___SS_FAMILY,[1],[define if you have __ss_family]) ],[ AC_MSG_RESULT(no) ]) AC_MSG_CHECKING([whether ss_len is defined]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include #include #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_WS2TCPIP_H # include #else # include # include #endif ]], [[ do { struct sockaddr_storage a; (void) a.ss_len; } while(0) ]])],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SS_LEN,[1],[define if you have ss_len]) ],[ AC_MSG_RESULT(no) ]) AC_MSG_CHECKING([whether __ss_len is defined]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include #include #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_WS2TCPIP_H # include #else # include # include #endif ]], [[ do { struct sockaddr_storage a; (void) a.__ss_len; } while(0) ]])],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE___SS_LEN,[1],[define if you have __ss_len]) ],[ AC_MSG_RESULT(no) ]) dnl Checks for library functions. AC_SEARCH_LIBS(pow, [m]) AC_SEARCH_LIBS(dlopen, [dl]) AC_SEARCH_LIBS(clock_gettime, [rt], [AC_DEFINE(HAVE_CLOCK_GETTIME,[1],[define if you have clock_gettime()])]) AC_SEARCH_LIBS(backtrace, [execinfo], [AC_DEFINE(HAVE_BACKTRACE,[1],[define if you have backtrace()])]) AC_SEARCH_LIBS(gethostbyname, [resolv nsl]) AC_SEARCH_LIBS(recvfrom, [socket]) AC_SEARCH_LIBS(kvm_open, [kvm]) AC_SEARCH_LIBS(sodium_hex2bin, [sodium], [ ], AC_ERROR([libsodium >= 0.7.0 not found])) use_ldns=no AC_CHECK_HEADER([ldns/ldns.h], [ AC_CHECK_LIB(ldns, ldns_wire2pkt, [ AC_DEFINE(USE_LDNS,[1],[define to use the ldns library]) LDNS_LIBS=-lldns use_ldns=yes ]) ], [ ], [#include #include #include #ifdef HAVE_WS2TCPIP_H # include #endif ]) AM_CONDITIONAL(USE_LDNS, test x$use_ldns = xyes) AC_SUBST([LDNS_LIBS]) case $host_os in cygwin* | mingw* | pw32* | cegcc*) AC_CHECK_LIB([ws2_32], [_head_libws2_32_a]) AC_CHECK_LIB([psapi], [_head_libpsapi_a]) AC_CHECK_LIB([iphlpapi], [_head_libiphlpapi_a]) ;; esac AC_CHECK_FUNCS([getpwnam sandbox_init setrlimit putc_unlocked gmtime_r initgroups]) AC_CHECK_FUNCS([crypto_box_easy_afternm crypto_core_hchacha20 crypto_box_curve25519xchacha20poly1305_open_easy_afternm]) dnl Libtool. LT_INIT([dlopen]) LT_CONFIG_LTDL_DIR([libltdl]) LTDL_INIT dnl Subconfig. case $host_os in cygwin* | mingw* | pw32* | cegcc*) ;; *) ac_configure_args="$ac_configure_args --disable-thread-support" ;; esac ac_configure_args="$ac_configure_args --disable-dependency-tracking" ac_configure_args="$ac_configure_args --disable-libevent-install" ac_configure_args="$ac_configure_args --disable-openssl" ac_configure_args="$ac_configure_args --disable-shared" ac_configure_args="$ac_configure_args --enable-function-sections" ac_configure_args="$ac_configure_args CC='$CC'" ac_configure_args="$ac_configure_args CFLAGS='$CFLAGS'" ac_configure_args="$ac_configure_args CPP='$CPP'" ac_configure_args="$ac_configure_args CPPFLAGS='$CPPFLAGS'" ac_configure_args="$ac_configure_args LDFLAGS='$LDFLAGS'" ac_configure_args="$ac_configure_args LIBS='$LIBS'" dnl Output. AH_VERBATIM([NDEBUG], [/* Never ever ignore assertions */ #ifdef NDEBUG #/**/undef/**/ NDEBUG #endif]) AC_CONFIG_FILES([Makefile contrib/Makefile dist-build/Makefile man/Makefile src/Makefile src/hostip/Makefile src/proxy/Makefile src/ext/Makefile src/include/Makefile src/include/dnscrypt/version.h src/plugins/Makefile src/plugins/example/Makefile src/plugins/example-cache/Makefile src/plugins/example-logging/Makefile src/plugins/example-ldns-aaaa-blocking/Makefile src/plugins/example-ldns-blocking/Makefile src/plugins/example-ldns-forwarding/Makefile src/plugins/vendor-specific/example-ldns-opendns-deviceid/Makefile src/plugins/vendor-specific/example-ldns-opendns-set-client-ip/Makefile test/Makefile]) AC_OUTPUT dnscrypt-proxy-1.9.4/contrib/000755 000765 000024 00000000000 13040635350 015605 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/COPYING000644 000765 000024 00000002415 13037731714 015211 0ustar00jstaff000000 000000 dnscrypt-proxy is covered by the following license : /* * Copyright (c) 2011-2017 Frank Denis * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ ==== This license applies to all parts of dnscrypt-proxy that are not externally maintained libraries. The externally maintained libraries used by dnscrypt-proxy are: - libsodium (https://github.com/jedisct1/libsodium). 2-clause BSD license. Based on NaCl (http://nacl.cr.yp.to), public domain. See src/libsodium/{COPYING,AUTHORS}. - libevent (http://libevent.org/). 3-clause BSD license. See src/libevent/LICENSE. dnscrypt-proxy-1.9.4/dist-build/000755 000765 000024 00000000000 13040635350 016205 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/dnscrypt-proxy.conf000644 000765 000024 00000021377 13040501255 020047 0ustar00jstaff000000 000000 ###################################################### # # # Sample configuration file for dnscrypt-proxy # # # ###################################################### ############## Resolver settings ############## ## [CHANGE THIS] Short name of the resolver to use ## Usually the only thing you need to change in this configuration file. ## This corresponds to the first column in the dnscrypt-resolvers.csv file. ## Alternatively, "random" (without quotes) picks a random random resolver ## accessible over IPv4, that doesn't log and supports DNSSEC. ResolverName random ## Full path to the list of available DNSCrypt resolvers (dnscrypt-resolvers.csv) ## An up-to-date list is available here: ## https://download.dnscrypt.org/dnscrypt-proxy/dnscrypt-resolvers.csv ## and the dnscrypt-update-resolvers.sh script can be used in order to ## automatically download and verify updates. # ResolversList /usr/local/share/dnscrypt-proxy/dnscrypt-resolvers.csv ## Manual settings, only for a custom resolver not present in the CSV file # ProviderName 2.dnscrypt.resolver.example # ProviderKey E801:B84E:A606:BFB0:BAC0:CE43:445B:B15E:BA64:B02F:A3C4:AA31:AE10:636A:0790:324D # ResolverAddress 203.0.113.1:443 ############## Process options ############## ## [NOT AVAILABLE ON WINDOWS] Run the proxy as a background process. ## Unless you are using systemd, you probably want to change this to "yes" ## after having verified that the rest of the configuration works as expected. Daemonize no ## Write the PID number to a file # PidFile /var/run/dnscrypt-proxy.pid ## [NOT AVAILABLE ON WINDOWS] Start the process, bind the required ports, and ## run the server as a less-privileged system user. ## The value for this parameter is a user name. # User _dnscrypt-proxy ############## Network/protocol settings ############## ## Local address and port to listen to. ## A 127.0.0.x address is recommended for local use, but 0.0.0.0 or ## a specific interface address can be used on a router, or to ## configure a single machine to act as a DNS proxy for different ## devices. ## If the socket is created by systemd, the proxy cannot change the address ## using this option. You should edit systemd's dnscrypt-proxy.socket file ## instead. # LocalAddress 127.0.0.1:53 ## Cache DNS responses to avoid outgoing traffic when the same queries ## are repeated multiple times in a row. LocalCache on ## Creates a new key pair for every query. ## This prevents logging servers from correlating client public keys with ## IP addresses. However, this option implies extra CPU load, and is not ## very useful with trusted/non-logging servers. EphemeralKeys off ## Maximum number of active requests waiting for a response. ## Keep it reasonable relative to the expected number of clients. # MaxActiveRequests 250 ## This is the maximum payload size allowed when using the UDP protocol. ## The default is safe, and rarely needs to be changed. # EDNSPayloadSize 1252 ## Ignore the time stamps when checking the certificates ## Do not enable this option ever, unless you know that you need it. # IgnoreTimestamps no ## Do not send queries using UDP. Only use TCP. ## Even if some resolvers mitigate this, DNS over TCP is almost always slower ## than UDP and doesn't offer additional security. ## Only enable this option if UDP doesn't work on your network. # TCPOnly no ## Forward queries for specific domains to one or more non-DNSCrypt resolvers. ## For instance, this can be used to redirect queries for local domains to ## the router, or queries for an internal domain to an internal DNS server. ## Multiple whitespace-delimited domains and IP addresses can be specified. ## Do not enable this unless you absolutely know you need it. ## If you see useless queries to these domains, you'd better block them with ## the BlackList feature instead of sending them in clear text to the router. ## This uses a plugin that requires dnscrypt-proxy to be compiled with ## the ldns library. # Forward domains:"test private localdomain lan" to:"192.168.100.254" ############## Logging ############## ## Log the received DNS queries to a file, so you can watch in real-time what ## is happening on the network. ## The value for this parameter is a full path to the log file. ## The file name can be prefixed with ltsv: in order to store logs using the ## LTSV format (ex: ltsv:/tmp/dns-queries.log). # QueryLogFile /tmp/dns-queries.log ## Log file to write server errors and information to. ## If you use this tool for privacy, keeping logs of any kind is usually not ## a good idea. # LogFile /var/log/dnscrypt-proxy.log ## Don't log events with priority above this log level after the service has ## been started up. Default is 6. ## Valid values are between 0 (critical) to 7 (debug-level messages). # LogLevel 6 ## [NOT AVAILABLE ON WINDOWS] Send server logs to the syslog daemon ## Log entries can optionally be prefixed with a string. # Syslog off # SyslogPrefix dnscrypt ############## Local filtering ############## ## If your network doesn't support IPv6, chances are that your ## applications are still constantly trying to resolve IPv6 addresses, ## causing unnecessary slowdowns. ## This causes the proxy to immediately reply to IPv6 requests, ## without having to send a useless request to upstream resolvers, and ## having to wait for a response. ## This uses a plugin that requires dnscrypt-proxy to be compiled with ## the ldns library. BlockIPv6 no ## Want to filter ads, malware, sensitive or inappropriate websites and ## domain names? This feature can block lists of IP addresses and names ## matching a list of patterns. The list of rules remains private, and ## the filtering process directly happens on your own network. In order ## to filter IP addresses, the list of IPs has to be put into a text ## file, with one IP address per line. Lists of domain names can also be ## blocked as well. Put the list into a text file, one domain per line. ## Domains can include wildcards (*) in order to match patterns. For ## example *sex* will match any name that contains the sex substring, and ## ads.* will match anything starting with ads. The Internet has plenty ## of free feeds of IP addresses and domain names used for malware, ## phishing and spam that you can use with this feature. ## ## This uses a plugin that requires dnscrypt-proxy to be compiled with ## the ldns library. ## ## To enable, uncomment one of the following definitions: ## Block query names matching the rules stored in that file: # BlackList domains:"/etc/dnscrypt-blacklist-domains.txt" ## Block responses whose IP addresses match IPs stored in that file: # BlackList ips:"/etc/dnscrypt-blacklist-ips.txt" ## Block both domain names and IP addresses: # BlackList domains:"/etc/dnscrypt-blacklist-domains.txt" ips:"/etc/dnscrypt-blacklist-ips.txt" ## Same as the above + log the blocked queries in a file. ## The log file can be prefixed with ltsv: (ex: ltsv:/tmp/log.txt) in order to ## store logs using the LTSV format. # BlackList domains:"/etc/dnscrypt-blacklist-domains.txt" logfile:"/var/log/dnscrypt-blocked.log" # BlackList ips:"/etc/dnscrypt-blacklist-ips.txt" logfile:"/var/log/dnscrypt-blocked.log" # BlackList domains:"/etc/dnscrypt-blacklist-domains.txt" ips:"/etc/dnscrypt-blacklist-ips.txt" logfile:"/var/log/dnscrypt-blocked.log" ############## User identification ############## ## Use a client public key for identification ## By default, the client uses a randomized key pair in order to make tracking ## more difficult. This option does the opposite and uses a static key pair, so ## that DNS providers can offer premium services to queries signed with a known ## set of public keys. A client cannot decrypt the received responses without ## also knowing the secret key. ## The value for this property is the path to a file containing the secret key, ## encoded as a hexadecimal string. The corresponding public key is computed ## automatically. # ClientKey /etc/dnscrypt-client-secret.key ############## Monitoring ############## ## Do not actually start the proxy, but check that a valid certificate can be ## retrieved from the server and that it will remain valid for the specified ## time period. The process exit code is 0 if a valid certificate can be used, ## 2 if no valid certificates can be used, 3 if a timeout occurred, and 4 if a ## currently valid certificate is going to expire before the given margin. ## Useful in a cron job to monitor your own dnscrypt-servers. ## The margin is specified in minutes. # Test 2880 ############## Recursive configuration ############## ## A configuration file can include other configuration files by inserting ## the `Include` directive anywhere (the full path required, no quotes): # Include /etc/dnscrypt-proxy-common.conf dnscrypt-proxy-1.9.4/dnscrypt-proxy.service.in000644 000765 000024 00000000705 13040467274 021173 0ustar00jstaff000000 000000 [Unit] Description=DNSCrypt client proxy Documentation=man:dnscrypt-proxy(8) Requires=dnscrypt-proxy.socket After=network.target Before=nss-lookup.target [Install] Also=dnscrypt-proxy.socket WantedBy=multi-user.target [Service] Type=simple NonBlocking=true # Edit the configuration file appropriately, or the service will not start. # See https://dnscrypt.org for more information. ExecStart=@sbindir@/dnscrypt-proxy @sysconfdir@/dnscrypt-proxy.conf dnscrypt-proxy-1.9.4/dnscrypt-proxy.socket000644 000765 000024 00000000226 13037731714 020413 0ustar00jstaff000000 000000 [Unit] Description=dnscrypt-proxy listening socket [Socket] ListenStream=127.0.0.1:53 ListenDatagram=127.0.0.1:53 [Install] WantedBy=sockets.target dnscrypt-proxy-1.9.4/dnscrypt-resolvers.csv000644 000765 000024 00000074136 13040611766 020572 0ustar00jstaff000000 000000 Name,Full name,Description,Location,Coordinates,URL,Version,DNSSEC validation,No logs,Namecoin,Resolver address,Provider name,Provider public key,Provider public key TXT record adguard-dns-family-ns1,Adguard DNS Family Protection 1,Adguard DNS with safesearch and adult content blocking,Anycast,,https://adguard.com/en/adguard-dns/overview.html,1,no,yes,no,176.103.130.132:5443,2.dnscrypt.family.ns1.adguard.com,B831:5DD7:B14B:6EE3:20A4:70DC:2ED6:B1AA:398C:C9E5:86F8:5D45:45D6:B8C9:B500:5ABA,pk.family.ns1.adguard.com adguard-dns-family-ns2,Adguard DNS Family Protection 2,Adguard DNS with safesearch and adult content blocking,Anycast,,https://adguard.com/en/adguard-dns/overview.html,1,no,yes,no,176.103.130.134:5443,2.dnscrypt.family.ns2.adguard.com,8C21:17A9:EBC1:57D6:FB64:056F:0ADB:C11C:5D83:6734:73C4:6E25:8D9B:2F57:D4EE:351F,pk.family.ns2.adguard.com adguard-dns-ns1,Adguard DNS 1,Remove ads and protect your computer from malware,Anycast,,https://adguard.com/en/adguard-dns/overview.html,1,no,yes,no,176.103.130.130:5443,2.dnscrypt.default.ns1.adguard.com,D12B:47F2:52DC:F2C2:BBF8:9910:86EA:F79C:E449:5D8B:16C8:A0C4:322E:52CA:3F39:0873,pk.default.ns1.adguard.com adguard-dns-ns2,Adguard DNS 2,Remove ads and protect your computer from malware,Anycast,,https://adguard.com/en/adguard-dns/overview.html,1,no,yes,no,176.103.130.131:5443,2.dnscrypt.default.ns2.adguard.com,81D0:02D3:6A4C:A50C:473B:7479:650F:E12E:02B3:21CB:6138:562A:208E:403D:FDC5:5E94,pk.default.ns2.adguard.com cisco,Cisco OpenDNS,Remove your DNS blind spot,Anycast,,https://www.opendns.com,1,no,no,no,208.67.220.220,2.dnscrypt-cert.opendns.com,B735:1140:206F:225D:3E2B:D822:D7FD:691E:A1C3:3CC8:D666:8D0C:BE04:BFAB:CA43:FB79, cisco-familyshield,Cisco OpenDNS with FamilyShield,Block websites not suitable for children,Anycast,,https://www.opendns.com/home-internet-security/parental-controls/,1,no,no,no,208.67.220.123,2.dnscrypt-cert.opendns.com,B735:1140:206F:225D:3E2B:D822:D7FD:691E:A1C3:3CC8:D666:8D0C:BE04:BFAB:CA43:FB79, cisco-ipv6,Cisco OpenDNS over IPv6,Cisco OpenDNS IPv6 sandbox,Anycast,,https://www.opendns.com/about/innovations/ipv6/,1,no,no,no,[2620:0:ccc::2]:443,2.dnscrypt-cert.opendns.com,B735:1140:206F:225D:3E2B:D822:D7FD:691E:A1C3:3CC8:D666:8D0C:BE04:BFAB:CA43:FB79, cs-fr,"CS France DNSCrypt server","provided by cryptostorm.is","Paris, France",,"https://cryptostorm.is",1,"no","yes","yes",212.129.46.86:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-fr2,"CS secondary France DNSCrypt server","provided by cryptostorm.is","Paris, France",,"https://cryptostorm.is",1,"no","yes","yes",212.129.46.32:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-cfi,"CS cryptofree France DNSCrypt server","provided by cryptostorm.is","Paris, France",,"https://cryptostorm.is",1,"no","yes","yes",212.83.175.31:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-cfii,"CS secondary cryptofree France DNSCrypt server","provided by cryptostorm.is","Paris, France",,"https://cryptostorm.is",1,"no","yes","yes",195.154.61.33:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-de,"CS Frankfurt, DE DNSCrypt server","provided by cryptostorm.is","Frankfurt, Germany",,"https://cryptostorm.is",1,"no","yes","yes",46.165.222.246:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-de2,"CS secondary Frankfurt, DE DNSCrypt server","provided by cryptostorm.is","Frankfurt, Germany",,"https://cryptostorm.is",1,"no","yes","yes",46.165.240.171:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-pt,"CS Portugal DNSCrypt server","provided by cryptostorm.is","Lisbon, Portugal",,"https://cryptostorm.is",1,"no","yes","yes",109.71.42.228:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-uk,"CS England DNSCrypt server","provided by cryptostorm.is","Rugby, England",,"https://cryptostorm.is",1,"no","yes","yes",5.101.137.251:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-ch,"CS Switzerland DNSCrypt server","provided by cryptostorm.is","Baar, Switzerland",,"https://cryptostorm.is",1,"no","yes","yes",185.60.147.77:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-ch2,"CS secondary Switzerland DNSCrypt server","provided by cryptostorm.is","Baar, Switzerland",,"https://cryptostorm.is",1,"no","yes","yes",176.10.104.49:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-cawest,"CS Canada west DNSCrypt server","provided by cryptostorm.is","Vancouver, CA",,"https://cryptostorm.is",1,"no","yes","yes",162.221.207.228:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-caeast,"CS Canada east DNSCrypt server","provided by cryptostorm.is","Montreal, CA",,"https://cryptostorm.is",1,"no","yes","yes",167.114.84.132:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-rome,"CS Italy DNSCrypt server","provided by cryptostorm.is","Rome, Italy",,"https://cryptostorm.is",1,"no","yes","yes",95.141.47.58:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-dk,"CS Denmark DNSCrypt server","provided by cryptostorm.is","Copenhagen, Denmark",,"https://cryptostorm.is",1,"no","yes","yes",82.103.131.172:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-ro,"CS Romania DNSCrypt server","provided by cryptostorm.is","Romania",,"https://cryptostorm.is",1,"no","yes","yes",5.254.96.195:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-lv,"CS Latvia DNSCrypt server","provided by cryptostorm.is","Riga, Latvia",,"https://cryptostorm.is",1,"no","yes","yes",80.233.134.52:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-ru,"CS Russia DNSCrypt server","provided by cryptostorm.is","Saint Petersburg, Russia",,"https://cryptostorm.is",1,"no","yes","yes",78.155.222.163:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-nl,"CS Netherlands DNSCrypt server","provided by cryptostorm.is","Rotterdam, Netherlands",,"https://cryptostorm.is",1,"no","yes","yes",213.163.64.208:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-es,"CS Spain DNSCrypt server","provided by cryptostorm.is","Valencia, Spain",,"https://cryptostorm.is",1,"no","yes","yes",185.140.114.51:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-md,"CS Moldova DNSCrypt server","provided by cryptostorm.is","Chisinau, Moldova",,"https://cryptostorm.is",1,"no","yes","yes",176.123.3.249:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-pl,"CS Poland DNSCrypt server","provided by cryptostorm.is","Warsaw, Poland",,"https://cryptostorm.is",1,"no","yes","yes",5.133.8.187:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-fi,"CS Finland DNSCrypt server","provided by cryptostorm.is","Helsinki, Finland",,"https://cryptostorm.is",1,"no","yes","yes",185.117.118.20:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-lt,"CS Lithuania DNSCrypt server","provided by cryptostorm.is","Vilnius, Lithuania",,"https://cryptostorm.is",1,"no","yes","yes",46.166.170.10:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-de3,"CS Dusseldorf, DE DNSCrypt server","provided by cryptostorm.is","Dusseldorf, Germany",,"https://cryptostorm.is",1,"no","yes","yes",89.163.214.174:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-uswest2,"CS Las Vegas NV US DNSCrypt server","provided by cryptostorm.is","Las Vegas, NV",,"https://cryptostorm.is",1,"no","yes","yes",104.238.194.235:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-uswest3,"CS secondary Las Vegas NV US DNSCrypt server","provided by cryptostorm.is","Las Vegas, NV",,"https://cryptostorm.is",1,"no","yes","yes",104.238.195.139:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-uswest4,"CS Phoenix AZ US DNSCrypt server","provided by cryptostorm.is","Phoenix, AZ",,"https://cryptostorm.is",1,"no","yes","yes",23.105.70.204:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-useast,"CS New York City NY US DNSCrypt server","provided by cryptostorm.is","Buffalo, NY",,"https://cryptostorm.is",1,"no","yes","yes",173.234.159.235:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-ussouth,"CS Dallas TX US DNSCrypt server","provided by cryptostorm.is","Dallas, TX",,"https://cryptostorm.is",1,"no","yes","yes",70.32.38.67:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-ussouth2,"CS Atlanta GA US DNSCrypt server","provided by cryptostorm.is","Atlanta, GA",,"https://cryptostorm.is",1,"no","yes","yes",108.62.19.131:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, cs-usnorth,"CS Chicago IL US DNSCrypt server","provided by cryptostorm.is","Chicago, IL",,"https://cryptostorm.is",1,"no","yes","yes",173.234.56.115:443,2.dnscrypt-cert.cryptostorm.is,3133:72AD:5956:32C2:416B:872F:098F:851B:DDB9:6528:4C6C:BE9A:4F19:0964:30DB:A95A, d0wn-au-ns1,D0wn Resolver Australia 01,Server provided by Martin 'd0wn' Albus,Australia,,https://dns.d0wn.biz,1,yes,yes,yes,27.100.36.191,2.dnscrypt-cert.au.d0wn.biz,A7D9:0F8E:9A98:1381:176A:3D25:36DE:E865:8538:9CD8:78BC:C3B5:A146:23F1:C2EF:58D8,pubkey.au.dnscrypt.d0wn.biz d0wn-at-ns1,D0wn Resolver Austria 01,Server provided by Martin 'd0wn' Albus,Austria,,https://dns.d0wn.biz,1,yes,yes,yes,79.133.33.52,2.dnscrypt-cert.at.d0wn.biz,717E:5DF4:1841:CD4B:D92E:CE16:ECCC:443D:B305:B03D:86E6:69B7:4AC1:FBB6:18D0:2BB4,pubkey.at.dnscrypt.d0wn.biz d0wn-bg-ns1,D0wn Resolver Bulgaria 01,Server provided by Martin 'd0wn' Albus,Bulgaria,,https://dns.d0wn.biz,1,yes,yes,yes,217.12.203.133,2.dnscrypt-cert.bg.d0wn.biz,423C:D823:B3EA:2015:F027:ECF1:5704:3EB7:764A:D02D:9447:56E6:51FD:D06F:E571:2FCC,pubkey.bg.dnscrypt.d0wn.biz d0wn-ca-ns1,D0wn Resolver Canada 01,Server provided by Martin 'd0wn' Albus,Canada,,https://dns.d0wn.biz,1,yes,yes,yes,198.50.244.26,2.dnscrypt-cert.ca.d0wn.biz,9DCE:B0A9:9653:C069:8583:AA5C:498C:3A75:8FBB:AEAA:55A8:6D0F:7C50:896C:45F5:F5ED,pubkey.ca.dnscrypt.d0wn.biz d0wn-ca-ns1-ipv6,D0wn Resolver Canada 01 over IPv6,Server provided by Martin 'd0wn' Albus,Canada,,https://dns.d0wn.biz,1,yes,yes,yes,[2607:5300:60:70a4::83d2:5c21]:443,2.dnscrypt-cert.ca.d0wn.biz,9DCE:B0A9:9653:C069:8583:AA5C:498C:3A75:8FBB:AEAA:55A8:6D0F:7C50:896C:45F5:F5ED,pubkey.ca.dnscrypt.d0wn.biz d0wn-cy-ns1,D0wn Resolver Cyprus 01,Server provided by Martin 'd0wn' Albus,Cyprus,,https://dns.d0wn.biz,1,yes,yes,yes,213.169.148.11,2.dnscrypt-cert.cy.d0wn.biz,2144:4FE7:59C3:13B9:FABB:FC2A:F975:9F9C:CD9A:2ED7:0978:3A25:7347:4B83:8F86:EA2B,pubkey.cy.dnscrypt.d0wn.biz d0wn-cz-ns1,D0wn Resolver Czech Republic 01,Server provided by Martin 'd0wn' Albus,Czech Republic,,https://dns.d0wn.biz,1,yes,yes,yes,81.2.237.32,2.dnscrypt-cert.cz.d0wn.biz,EE21:5055:4DA0:1367:BAC3:768A:7C1E:24BF:D777:ACD5:77A4:44F8:BDF3:84E0:5966:D855,pubkey.cz.dnscrypt.d0wn.biz d0wn-fr-ns2,D0wn Resolver France 02,Server provided by Martin 'd0wn' Albus,France,,https://dns.d0wn.biz,1,yes,yes,yes,37.187.0.40,2.dnscrypt-cert.fr2.d0wn.biz,25A7:DB7B:7835:55D5:7DA4:7C0C:57F8:9C5F:0220:3D09:67E3:585A:723E:E0D1:CB38:F767,pubkey.fr2.dnscrypt.d0wn.biz d0wn-fr-ns2-ipv6,D0wn Resolver France 02 over IPv6,Server provided by Martin 'd0wn' Albus,France,,https://dns.d0wn.biz,1,yes,yes,yes,[2001:41D0:A:0028::1]:443,2.dnscrypt-cert.fr2.d0wn.biz,25A7:DB7B:7835:55D5:7DA4:7C0C:57F8:9C5F:0220:3D09:67E3:585A:723E:E0D1:CB38:F767,pubkey.fr2.dnscrypt.d0wn.biz d0wn-de-ns1,D0wn Resolver Germany 01,Server provided by Martin 'd0wn' Albus,Germany,,https://dns.d0wn.biz,1,yes,yes,yes,82.211.31.248,2.dnscrypt-cert.de.d0wn.biz,B040:19F8:8D49:4682:41E3:EB58:5F61:173F:EF8E:55DA:0597:2DB7:27BB:C153:1DD8:D109,pubkey.de.dnscrypt.d0wn.biz d0wn-de-ns1-ipv6,D0wn Resolver Germany 01 over IPv6,Server provided by Martin 'd0wn' Albus,Germany,,https://dns.d0wn.biz,1,yes,yes,yes,[2001:1608:10:195:3:dead:beef:cafe]:443,2.dnscrypt-cert.de.d0wn.biz,B040:19F8:8D49:4682:41E3:EB58:5F61:173F:EF8E:55DA:0597:2DB7:27BB:C153:1DD8:D109,pubkey.de.dnscrypt.d0wn.biz d0wn-de-ns2,D0wn Resolver Germany 02,Server provided by Martin 'd0wn' Albus,Germany,,https://dns.d0wn.biz,1,yes,yes,yes,185.137.15.105,2.dnscrypt-cert.de2.d0wn.biz,8C62:691A:A7EA:69D3:8A25:86AA:2715:87F0:9B11:9159:0663:55FC:1CD0:61C5:C863:1940,pubkey.de2.dnscrypt.d0wn.biz d0wn-gr-ns1,D0wn Resolver Greece 01,Server provided by Martin 'd0wn' Albus,Greece,,https://dns.d0wn.biz,1,yes,yes,yes,85.25.105.193,2.dnscrypt-cert.gr.d0wn.biz,B19C:0B5C:48F2:58FA:0BE4:67F4:5F50:BC7F:985F:C544:8A4F:BC9D:5574:5A35:5701:8009,pubkey.gr.dnscrypt.d0wn.biz d0wn-hk-ns1,D0wn Resolver Hong Kong 01,Server provided by Martin 'd0wn' Albus,Hong Kong,,https://dns.d0wn.biz,1,yes,yes,yes,45.124.66.200,2.dnscrypt-cert.hk.d0wn.biz,84ED:0DFF:7967:5DBD:2D93:65A2:A6AB:7F90:146F:A50B:048C:8C75:651B:AA55:7129:6740,pubkey.hk.dnscrypt.d0wn.biz d0wn-hk-ns2,D0wn Resolver Hong Kong 02,Server provided by Martin 'd0wn' Albus,Hong Kong,,https://dns.d0wn.biz,1,yes,yes,yes,103.27.124.66,2.dnscrypt-cert.hk2.d0wn.biz,DFC0:72C1:8066:F9EB:7914:32A9:5516:576E:E79A:2639:79E3:7278:42BE:597F:CB28:2CA5,pubkey.hk2.dnscrypt.d0wn.biz d0wn-is-ns1,D0wn Resolver Iceland 01,Server provided by Martin 'd0wn' Albus,Iceland,,https://dns.d0wn.biz,1,yes,yes,yes,37.235.49.61,2.dnscrypt-cert.is.d0wn.biz,2B28:974E:073A:6B38:722A:5BE1:F7A0:250C:508F:A809:238F:8F3D:76D8:6098:20D7:B2D9,pubkey.is.dnscrypt.d0wn.biz d0wn-id-ns1,D0wn Resolver Indonesia 01,Server provided by Martin 'd0wn' Albus,Indonesia,,https://dns.d0wn.biz,1,yes,yes,yes,45.114.118.195,2.dnscrypt-cert.id.d0wn.biz,BE93:B3F1:2A3B:2448:8F33:F91F:9461:5F73:D5CA:56D6:C789:96DE:7A18:D4DE:5182:094D,pubkey.id.dnscrypt.d0wn.biz d0wn-it-ns1,D0wn Resolver Italy 01,Server provided by Martin 'd0wn' Albus,Italy,,https://dns.d0wn.biz,1,yes,yes,yes,31.14.133.188,2.dnscrypt-cert.it.d0wn.biz,2DEC:CEF8:A4D0:57DE:0D1A:CE8E:0A3C:BEB8:2135:61A8:BF0E:7373:0BA0:EC38:C876:3B50,pubkey.it.dnscrypt.d0wn.biz d0wn-lv-ns1,D0wn Resolver Latvia 01,Server provided by Martin 'd0wn' Albus,Latvia,,https://dns.d0wn.biz,1,yes,yes,yes,89.111.13.60,2.dnscrypt-cert.lv.d0wn.biz,9AC3:6B4C:7ADB:E7D6:D697:B6BF:151C:151A:B291:8C5D:B912:15F8:B986:5926:33A4:A5E1,pubkey.lv.dnscrypt.d0wn.biz d0wn-lv-ns2,D0wn Resolver Latvia 02,Server provided by Martin 'd0wn' Albus,Latvia,,https://dns.d0wn.biz,1,yes,yes,yes,185.86.151.28,2.dnscrypt-cert.lv2.d0wn.biz,B111:F80C:E3E0:1C36:CC73:0995:009E:6351:EF08:0503:309D:9417:7AA3:8C67:916D:0CDF,pubkey.lv.dnscrypt.d0wn.biz d0wn-lv-ns2-ipv6,D0wn Resolver Latvia 01 over IPv6,Server provided by Martin 'd0wn' Albus,Latvia,,https://dns.d0wn.biz,1,yes,yes,yes,[2a02:7aa0:1201::f60e:2719]:443,2.dnscrypt-cert.lv2.d0wn.biz,B111:F80C:E3E0:1C36:CC73:0995:009E:6351:EF08:0503:309D:9417:7AA3:8C67:916D:0CDF,pubkey.lv.dnscrypt.d0wn.biz d0wn-lt-ns1,D0wn Resolver Lithuania 01,Server provided by Martin 'd0wn' Albus,Lithuania,,https://dns.d0wn.biz,1,yes,yes,yes,194.135.95.138,2.dnscrypt-cert.lt.d0wn.biz,8003:079D:D023:0EEF:6585:DC15:21E3:7481:7C84:03B4:A1C5:F202:BA97:2978:BB46:DB3C,pubkey.lt.dnscrypt.d0wn.biz d0wn-md-ns1,D0wn Resolver Moldova 01,Server provided by Martin 'd0wn' Albus,Moldova,,https://dns.d0wn.biz,1,yes,yes,yes,178.17.170.67:1053,2.dnscrypt-cert.md.d0wn.biz,3DB2:C4CB:39E2:6B82:FDDF:6D91:1A65:D164:F4F0:D237:8CDD:0C37:469F:24BA:B9A0:F9FF,pubkey.md.dnscrypt.d0wn.biz d0wn-md-ns1-ipv6,D0wn Resolver Moldova 01 over IPv6,Server provided by Martin 'd0wn' Albus,Moldova,,https://dns.d0wn.biz,1,yes,yes,yes,[2a00:1dc0:cafe::ad86:fa7e]:1053,2.dnscrypt-cert.md.d0wn.biz,3DB2:C4CB:39E2:6B82:FDDF:6D91:1A65:D164:F4F0:D237:8CDD:0C37:469F:24BA:B9A0:F9FF,pubkey.md.dnscrypt.d0wn.biz d0wn-random-ns1,D0wn Resolver Moldova Random 01,Server provided by Martin 'd0wn' Albus,Moldova,,https://dns.d0wn.biz,1,yes,yes,yes,178.17.170.133,2.dnscrypt-cert.random.d0wn.biz,A420:867F:ED5C:024C:C86A:EECE:AA05:194B:017F:D2FF:9E72:385A:874F:8CE5:6832:ED2E,pubkey.random.dnscrypt.d0wn.biz d0wn-random-ns1-ipv6,D0wn Resolver Moldova Random 01 over IPv6,Server provided by Martin 'd0wn' Albus,Moldova,,https://dns.d0wn.biz,1,yes,yes,yes,[2a00:1dc0:cafe::c6af:c19d]:443,2.dnscrypt-cert.random.d0wn.biz,A420:867F:ED5C:024C:C86A:EECE:AA05:194B:017F:D2FF:9E72:385A:874F:8CE5:6832:ED2E,pubkey.random.dnscrypt.d0wn.biz d0wn-nl-ns1,D0wn Resolver Netherlands 01,Server provided by Martin 'd0wn' Albus,Netherlands,,https://dns.d0wn.biz,1,yes,yes,yes,95.85.9.86:1053,2.dnscrypt-cert.nl.d0wn.biz,7BE6:68FE:A505:FFA7:4C27:C2CA:F881:59DA:038C:5741:13AA:2556:A4D2:2D0B:B6F0:009E,pubkey.nl.dnscrypt.d0wn.biz d0wn-nl-ns1-ipv6,D0wn Resolver Netherlands 01 over IPv6,Server provided by Martin 'd0wn' Albus,Netherlands,,https://dns.d0wn.biz,1,yes,yes,yes,[2a03:b0c0:0:1010::62:f001]:1053,2.dnscrypt-cert.nl.d0wn.biz,7BE6:68FE:A505:FFA7:4C27:C2CA:F881:59DA:038C:5741:13AA:2556:A4D2:2D0B:B6F0:009E,pubkey.nl.dnscrypt.d0wn.biz d0wn-nl-ns2-ipv6,D0wn Resolver Netherlands 02 over IPv6,Server provided by Martin 'd0wn' Albus,Netherlands,,https://dns.d0wn.biz,1,yes,yes,yes,[2a02:2ca0:64:22::2]:1053,2.dnscrypt-cert.nl2.d0wn.biz,DFAA:B7D8:29E6:1F34:4FED:2610:4221:70C9:ADC7:7E9F:A65F:4A46:0BAE:A735:3186:3B99,pubkey.nl2.dnscrypt.d0wn.biz d0wn-nl-ns3,D0wn Resolver Netherlands 03,Server provided by Martin 'd0wn' Albus,Netherlands,,https://dns.d0wn.biz,1,yes,yes,yes,185.133.72.116,2.dnscrypt-cert.nl3.d0wn.biz,01FC:1AA9:F71F:F09E:55CE:0D04:9ACA:2B11:9536:319E:04A9:C3AE:77CB:127D:4C53:0651,pubkey.nl3.dnscrypt.d0wn.biz d0wn-nl-ns3-ipv6,D0wn Resolver Netherlands 03 over IPv6,Server provided by Martin 'd0wn' Albus,Netherlands,,https://dns.d0wn.biz,1,yes,yes,yes,[2a06:7240:5:601:dead:beef:e3e7:7a9d]:443,2.dnscrypt-cert.nl3.d0wn.biz,01FC:1AA9:F71F:F09E:55CE:0D04:9ACA:2B11:9536:319E:04A9:C3AE:77CB:127D:4C53:0651,pubkey.nl3.dnscrypt.d0wn.biz d0wn-random-ns2,D0wn Resolver Netherlands Random 02,Server provided by Martin 'd0wn' Albus,Netherlands,,https://dns.d0wn.biz,1,yes,yes,yes,185.14.29.140,2.dnscrypt-cert.random2.d0wn.biz,7D73:F486:3C01:4CC9:B278:D107:F254:7A4F:1EA2:1081:07B0:CB82:645A:D8A4:B98A:B327,pubkey.random2.dnscrypt.d0wn.biz d0wn-random-ns2-ipv6,D0wn Resolver Netherlands Random 02 over IPv6,Server provided by Martin 'd0wn' Albus,Netherlands,,https://dns.d0wn.biz,1,yes,yes,yes,[2a00:1ca8:a7::1e9]:443,2.dnscrypt-cert.random2.d0wn.biz,7D73:F486:3C01:4CC9:B278:D107:F254:7A4F:1EA2:1081:07B0:CB82:645A:D8A4:B98A:B327,pubkey.random2.dnscrypt.d0wn.biz d0wn-ro-ns1,D0wn Resolver Romania 01,Server provided by Martin 'd0wn' Albus,Romania,,https://dns.d0wn.biz,1,yes,yes,yes,77.81.104.121,2.dnscrypt-cert.ro.d0wn.biz,DA9E:6882:B0F8:335E:B5F4:A059:1B7D:EE6F:BD55:4451:93B4:13BF:AFFC:7D26:4527:CE1A,pubkey.ro.dnscrypt.d0wn.biz d0wn-ro-ns1-ipv6,D0wn Resolver Romania 01 over IPv6,Server provided by Martin 'd0wn' Albus,Romania,,https://dns.d0wn.biz,1,yes,yes,yes,[2a04:9dc0:c1:7::cb9:f785]:443,2.dnscrypt-cert.ro.d0wn.biz,DA9E:6882:B0F8:335E:B5F4:A059:1B7D:EE6F:BD55:4451:93B4:13BF:AFFC:7D26:4527:CE1A,pubkey.ro.dnscrypt.d0wn.biz d0wn-ru-ns1,D0wn Resolver Russia 01,Server provided by Martin 'd0wn' Albus,Russia,,https://dns.d0wn.biz,1,yes,yes,yes,91.214.71.181,2.dnscrypt-cert.ru.d0wn.biz,0ECA:BC40:E0A1:335F:0221:4240:AB86:2919:D16A:2393:CCEB:4B40:9EB9:4F24:3077:ED99,pubkey.ru.dnscrypt.d0wn.biz d0wn-sg-ns1,D0wn Resolver Singapore 01,Server provided by Martin 'd0wn' Albus,Singapore,,https://dns.d0wn.biz,1,yes,yes,yes,128.199.248.105,2.dnscrypt-cert.sg.d0wn.biz,D82B:2B76:1DA0:8470:B55B:820C:FAAB:9F32:D632:E9E0:5616:2CE7:7D21:E970:98FF:4A34,pubkey.sg.dnscrypt.d0wn.biz d0wn-sg-ns1-ipv6,D0wn Resolver Singapore 01 over IPv6,Server provided by Martin 'd0wn' Albus,Singapore,,https://dns.d0wn.biz,1,yes,yes,yes,[2400:6180:0:d0::38:d001]:443,2.dnscrypt-cert.sg.d0wn.biz,D82B:2B76:1DA0:8470:B55B:820C:FAAB:9F32:D632:E9E0:5616:2CE7:7D21:E970:98FF:4A34,pubkey.sg.dnscrypt.d0wn.biz d0wn-sg-ns2,D0wn Resolver Singapore 02,Server provided by Martin 'd0wn' Albus,Singapore,,https://dns.d0wn.biz,1,yes,yes,yes,210.16.120.139,2.dnscrypt-cert.sg2.d0wn.biz,0F00:63C4:6EAF:29C3:29CD:E125:2033:6F0A:0C72:7CDD:F1F4:3D47:F95D:02BC:07F7:9FFC,pubkey.sg2.dnscrypt.d0wn.biz d0wn-sg-ns2-ipv6,D0wn Resolver Singapore 02 over IPv6,Server provided by Martin 'd0wn' Albus,Singapore,,https://dns.d0wn.biz,1,yes,yes,yes,[2403:5680::1:200f]:443,2.dnscrypt-cert.sg2.d0wn.biz,0F00:63C4:6EAF:29C3:29CD:E125:2033:6F0A:0C72:7CDD:F1F4:3D47:F95D:02BC:07F7:9FFC,pubkey.sg2.dnscrypt.d0wn.biz d0wn-kr-ns1,D0wn Resolver South Korea 01,Server provided by Martin 'd0wn' Albus,South Korea,,https://dns.d0wn.biz,1,yes,yes,yes,103.214.68.250,2.dnscrypt-cert.kr.d0wn.biz,C30E:56F8:E00C:87CC:4B2E:2435:FAC1:2700:E4C3:B357:FF5C:8264:B157:6FCC:E60B:4657,pubkey.kr.dnscrypt.d0wn.biz d0wn-es-ns1,D0wn Resolver Spain 01,Server provided by Martin 'd0wn' Albus,Spain,,https://dns.d0wn.biz,1,yes,yes,yes,91.142.220.29,2.dnscrypt-cert.es.d0wn.biz,EB09:E854:AEDA:9705:CB47:ED69:EADD:4156:3653:82C5:C88D:A2E3:6917:3B54:4774:7505,pubkey.es.dnscrypt.d0wn.biz d0wn-se-ns1,D0wn Resolver Sweden 01,Server provided by Martin 'd0wn' Albus,Sweden,,https://dns.d0wn.biz,1,yes,yes,yes,95.215.44.124,2.dnscrypt-cert.se.d0wn.biz,9D4F:762B:DD24:F77A:64B4:7E0F:F5C6:93FD:A02A:39E9:8FEC:0CEE:F252:3A5F:A403:C032,pubkey.se.dnscrypt.d0wn.biz d0wn-se-ns1-ipv6,D0wn Resolver Sweden 01 over IPv6,Server provided by Martin 'd0wn' Albus,Sweden,,https://dns.d0wn.biz,1,yes,yes,yes,[2a02:7aa0:1619::4f50:a69]:443,2.dnscrypt-cert.se.d0wn.biz,9D4F:762B:DD24:F77A:64B4:7E0F:F5C6:93FD:A02A:39E9:8FEC:0CEE:F252:3A5F:A403:C032,pubkey.se.dnscrypt.d0wn.biz d0wn-ch-ns1,D0wn Resolver Switzerland 01,Server provided by Martin 'd0wn' Albus,Switzerland,,https://dns.d0wn.biz,1,yes,yes,yes,185.128.42.123,2.dnscrypt-cert.ch.d0wn.biz,A810:2ED9:8524:1D30:6B0F:1491:09FB:C47B:0D3E:6C73:28AC:7BF8:F173:9977:5D2C:61B8,pubkey.ch.dnscrypt.d0wn.biz d0wn-ch-ns1-ipv6,D0wn Resolver Switzerland 01 over IPv6,Server provided by Martin 'd0wn' Albus,Switzerland,,https://dns.d0wn.biz,1,yes,yes,yes,[2404:2880:259::5425:abfd]:443,2.dnscrypt-cert.ch.d0wn.biz,A810:2ED9:8524:1D30:6B0F:1491:09FB:C47B:0D3E:6C73:28AC:7BF8:F173:9977:5D2C:61B8,pubkey.ch.dnscrypt.d0wn.biz d0wn-tz-ns1,D0wn Resolver Tanzania 01,Server provided by Martin 'd0wn' Albus,Tanzania,,https://dns.d0wn.biz,1,yes,yes,yes,41.79.69.13,2.dnscrypt-cert.tz.d0wn.biz,D606:15FB:D145:3BA1:4E76:8A3E:5C5C:B3AC:1746:1331:463D:A0AF:8CF7:DF04:DA4D:756D,pubkey.tz.dnscrypt.d0wn.biz d0wn-tz-ns1-ipv6,D0wn Resolver Tanzania 01 over IPv6,Server provided by Martin 'd0wn' Albus,Tanzania,,https://dns.d0wn.biz,1,yes,yes,yes,[2c0f:fda8:5::2ed1:d2ec]:443,2.dnscrypt-cert.tz.d0wn.biz,D606:15FB:D145:3BA1:4E76:8A3E:5C5C:B3AC:1746:1331:463D:A0AF:8CF7:DF04:DA4D:756D,pubkey.tz.dnscrypt.d0wn.biz d0wn-uk-ns1,D0wn Resolver United Kingdom 01,Server provided by Martin 'd0wn' Albus,United Kingdom,,https://dns.d0wn.biz,1,yes,yes,yes,185.121.25.85,2.dnscrypt-cert.uk.d0wn.biz,FADB:BE63:7FCD:FE22:0DBE:D433:438C:5A1D:C267:1E96:4B67:1918:B15F:9121:77D7:5B2E,pubkey.uk.dnscrypt.d0wn.biz d0wn-uk-ns1-ipv6,D0wn Resolver United Kingdom 01 over IPv6,Server provided by Martin 'd0wn' Albus,United Kingdom,,https://dns.d0wn.biz,1,yes,yes,yes,[2a04:92c7:7:7::14ae:460a]:443,2.dnscrypt-cert.uk.d0wn.biz,FADB:BE63:7FCD:FE22:0DBE:D433:438C:5A1D:C267:1E96:4B67:1918:B15F:9121:77D7:5B2E,pubkey.uk.dnscrypt.d0wn.biz d0wn-us-ns1,D0wn Resolver United States of America 01,Server provided by Martin 'd0wn' Albus,United States of America,,https://dns.d0wn.biz,1,yes,yes,yes,107.181.187.219,2.dnscrypt-cert.us.d0wn.biz,04BB:6100:7CFF:C72B:AF91:8942:F9DC:12A9:61A1:C6F2:177F:7CF9:F3C9:1B43:9FBE:6B80,pubkey.us.dnscrypt.d0wn.biz d0wn-us-ns2,D0wn Resolver United States of America 02,Server provided by Martin 'd0wn' Albus,United States of America,,https://dns.d0wn.biz,1,yes,yes,yes,192.252.222.24,2.dnscrypt-cert.us2.d0wn.biz,729B:FABE:2295:D469:E911:F97E:3EE4:F6DB:0190:EA6F:7CF3:F7EE:BB6B:99B1:698A:237D,pubkey.us2.dnscrypt.d0wn.biz dnscrypt.eu-dk,DNSCrypt.eu Denmark,"Free, non-logged, uncensored. Hosted by Netgroup.",Denmark,,https://dnscrypt.eu,1,yes,yes,no,77.66.84.233,2.dnscrypt-cert.resolver2.dnscrypt.eu,3748:5585:E3B9:D088:FD25:AD36:B037:01F5:520C:D648:9E9A:DD52:1457:4955:9F0A:9955,pubkey.resolver2.dnscrypt.eu dnscrypt.eu-dk-ipv6,DNSCrypt.eu Denmark over IPv6,"Free, non-logged, uncensored. Hosted by Netgroup.",Denmark,,https://dnscrypt.eu,1,yes,yes,no,[2001:1448:243::dc2]:443,2.dnscrypt-cert.resolver2.dnscrypt.eu,3748:5585:E3B9:D088:FD25:AD36:B037:01F5:520C:D648:9E9A:DD52:1457:4955:9F0A:9955,pubkey.resolver2.dnscrypt.eu dnscrypt.eu-nl,DNSCrypt.eu Holland,"Free, non-logged, uncensored. Hosted by RamNode.",Netherlands,,https://dnscrypt.eu,1,yes,yes,no,176.56.237.171,2.dnscrypt-cert.resolver1.dnscrypt.eu,67C0:0F2C:21C5:5481:45DD:7CB4:6A27:1AF2:EB96:9931:40A3:09B6:2B8D:1653:1185:9C66,pubkey.resolver1.dnscrypt.eu dnscrypt.eu-nl-ipv6,DNSCrypt.eu Holland over IPv6,"Free, non-logged, uncensored. Hosted by RamNode.",Netherlands,,https://dnscrypt.eu,1,yes,yes,no,[2a00:d880:3:1::a6c1:2e89]:443,2.dnscrypt-cert.resolver1.dnscrypt.eu,67C0:0F2C:21C5:5481:45DD:7CB4:6A27:1AF2:EB96:9931:40A3:09B6:2B8D:1653:1185:9C66,pubkey.resolver1.dnscrypt.eu dnscrypt.org-fr,DNSCrypt.org France,DNSSEC/Non-logged/Uncensored - ARM server donated by Scaleway.com,"Paris, France",,https://fr.dnscrypt.org,2,yes,yes,no,212.47.228.136,2.dnscrypt-cert.fr.dnscrypt.org,E801:B84E:A606:BFB0:BAC0:CE43:445B:B15E:BA64:B02F:A3C4:AA31:AE10:636A:0790:324D,pubkey.fr.dnscrypt.org dyne.org,Dyne.org Server,Public DNSCrypt server provided by Dyne.org,"New York, US",,https://www.dyne.org,1,no,yes,no,198.199.70.248:5553,2.dnscrypt-cert.dyne.org,162F:051A:BACA:A042:A0C9:7769:91B4:BBA8:FE10:8F72:53CB:5077:A055:9BCF:AD39:73C5, fvz-anyone,Primary OpenNIC Anycast DNS Resolver,Fusl's public primary OpenNIC Tier2 Anycast DNS Resolver,Anycast,,http://dnsrec.meo.ws/,1,no,yes,yes,185.121.177.177,2.dnscrypt-cert.dnsrec.meo.ws,1A6A:D0A3:2B4C:5A61:A695:D153:670D:69AB:1690:3F9E:C3F7:F64F:13E5:35A3:18B2:28A5, fvz-anyone-ipv6,Primary OpenNIC Anycast DNS IPv6 Resolver,Fusl's public primary OpenNIC Tier2 Anycast DNS Resolver,Anycast,,http://dnsrec.meo.ws/,1,no,yes,yes,[2a05:dfc7:5::53]:443,2.dnscrypt-cert.dnsrec.meo.ws,1A6A:D0A3:2B4C:5A61:A695:D153:670D:69AB:1690:3F9E:C3F7:F64F:13E5:35A3:18B2:28A5, fvz-anytwo,Secondary OpenNIC Anycast DNS Resolver,Fusl's public secondary OpenNIC Tier2 Anycast DNS Resolver,Anycast,,http://dnsrec.meo.ws/,1,no,yes,yes,185.121.177.53,2.dnscrypt-cert.dnsrec.meo.ws,1A6A:D0A3:2B4C:5A61:A695:D153:670D:69AB:1690:3F9E:C3F7:F64F:13E5:35A3:18B2:28A5, fvz-anytwo-ipv6,Secondary OpenNIC Anycast DNS IPv6 Resolver,Fusl's public secondary OpenNIC Tier2 Anycast DNS Resolver,Anycast,,http://dnsrec.meo.ws/,1,no,yes,yes,[2a05:dfc7:5::5353]:443,2.dnscrypt-cert.dnsrec.meo.ws,1A6A:D0A3:2B4C:5A61:A695:D153:670D:69AB:1690:3F9E:C3F7:F64F:13E5:35A3:18B2:28A5, ifreenet,ifreenet.online,Public DNSCrypt server by ifreenet.online,Anycast,,https://ifreenet.online,1,yes,yes,no,162.243.244.40:443,2.dnscrypt-cert.ifreenet.online,E05F:2DD4:BBF1:7518:D809:B18F:0903:7E95:AD79:608E:C447:85DB:A85D:0C48:65B9:BD75,pubkey.ifreenet.online ipredator,Ipredator.se Server,Public DNSCrypt server in Sweden provided by Ipredator.se,Sweden,,https://www.ipredator.se,1,yes,yes,no,194.132.32.32,2.dnscrypt-cert.ipredator.se,C44C:566A:A8D6:46C4:32B1:04F5:3D00:961B:32DC:71CF:1C04:BD9E:B013:E480:E7A4:7828,pubkey.resolver2.ipredator.se ns0.dnscrypt.is,"ns0.dnscrypt.is in Reykjavík, Iceland","DNSSEC enabled, non-logging, uncensored. Sponsored by 1984 Hosting.","Reykjavík, Iceland",,https://dnscrypt.is,1,yes,yes,no,93.95.228.87,2.dnscrypt-cert.ns0.dnscrypt.is,EE41:6A83:451C:218F:37B2:B736:78C4:999F:7DE6:89D1:31D2:7866:7C8E:A8BB:1C95:B402,pubkey.ns0.dnscrypt.is okturtles,okTurtles,For a surveillance-free world. HTTPS is broken. DNSChain fixes it.,"Georgia, US","33.032501, -83.895699",http://okturtles.com/,1,no,yes,yes,23.226.227.93,2.dnscrypt-cert.okturtles.com,1D85:3953:E34F:AFD0:05F9:4C6F:D1CC:E635:D411:9904:0D48:D19A:5D35:0B6A:7C81:73CB, opennic-tumabox,TumaBox,Public DNS server operated by TumaBox.org,Germany,,http://wiki.tumabox.org/doku.php?id=dns,1,no,yes,yes,130.255.73.90:5353,2.tumabox.org,D591:7B11:6A35:3114:C238:AA99:A6EB:0C28:7CF7:6805:41AC:5DBF:A8A0:239E:228C:5B06, opennic-tumabox-ipv6,TumaBox over IPv6,Public DNS server operated by TumaBox.org,Germany,,http://wiki.tumabox.org/doku.php?id=dns,1,no,yes,yes,[2a02:e00:fffd:139::9]:5353,2.tumabox.org,D591:7B11:6A35:3114:C238:AA99:A6EB:0C28:7CF7:6805:41AC:5DBF:A8A0:239E:228C:5B06, ovpnse,OVPN.se Integritet AB,Public DNS server in Sweden by OVPN.se,Sweden,"59.2877011, 18.0771273",https://www.ovpn.se,1,no,yes,no,46.227.67.134:55,2.dnscrypt-cert.dnscrypt01.ovpn.se,B0D6:3658:E23F:5AE1:495C:03C2:319D:D6F1:F2E1:E067:BD23:6F56:503F:27A8:C5D9:2390, ventricle.us,Anatomical DNS,Public DNSCrypt resolver provided by Jacob Henner,"New York, NY",,https://jacobhenner.com,1,yes,yes,no,107.170.57.34,2.dnscrypt-cert.dnscrypt.ventricle.us,E985:F118:AD4E:3CC6:5FF2:2520:1890:C6F5:58B7:5B5A:52F5:6B17:CFEA:C100:5C8B:9BAA,pubkey.dnscrypt.ventricle.us yandex,Yandex,Yandex public DNS server,Anycast,,https://www.yandex.com,1,no,no,no,77.88.8.78:15353,2.dnscrypt-cert.browser.yandex.net,D384:C071:C9F7:4662:AF2A:CCD5:7B5D:CC97:14D4:07B6:AD36:01E1:AEDC:06D5:6D49:6327, dnscrypt-proxy-1.9.4/DNSCRYPT-V2-PROTOCOL.txt000644 000765 000024 00000042525 13037731714 017717 0ustar00jstaff000000 000000 DNSCrypt version 2 protocol specification ========================================= 1. Protocol overview -------------------- The DNSCrypt protocol can use the UDP and TCP transport protocols. DNSCrypt Clients and resolvers should support the protocol over UDP and must support it over TCP. The default port for this protocol should be 443, both for TCP and UDP. Both the client and the resolver initially generate a short-term key pair for each supported encryption system. From a client perspective, a DNSCrypt session begins with the client sending a non-authenticated DNS query to a DNSCrypt-enabled resolver. This DNS query encodes the certificate versions supported by the client, as well as a public identifier of the provider requested by the client. The resolver responds with a public set of signed certificates, that must be verified by the client using a previously distributed public key, known as the provider public key. Each certificate includes a validity period, a serial number, a version that defines a key exchange mechanism, an authenticated encryption algorithm and its parameters, as well as a short-term public key, known as the resolver public key. A resolver can support multiple algorithms and advertise multiple resolver public keys simultaneously. The client picks the one with the highest serial number among the currently valid ones that match a supported protocol version. Each certificate includes a magic number that the client must prefix its queries with, in order for the resolver to know what certificate was chosen by the client to construct a given query. The encryption algorithm, resolver public key and client magic number from the chosen certificate are then used by the client to send encrypted queries. These queries include the client public key. Using this client public key, and knowing which certificate was chosen by the client as well as the relevant secret key, the resolver verifies and decrypts the query, and encrypts the response using the same parameters. 2. Common definitions for client queries ---------------------------------------- ::= ::= a 8 byte identifier for the resolver certificate chosen by the client. ::= the client's public key, whose length depends on the encryption algorithm defined in the chosen certificate. ::= the client's secret key. ::= the resolver's public key. ::= a unique query identifier for a given (, ) tuple. The same query sent twice for the same (, ) tuple must use two distinct values. The length of depends on the chosen encryption algorithm. ::= AE( , ) AE ::= the authenticated encryption algorithm. ::= the shared key derived from and , using the key exchange algorithm defined in the chosen certificate. ::= the unencrypted client query. The query is not modified; in particular, the query flags are not altered and the query length must be kept in queries prepared to be sent over TCP. ::= length is half the nonce length required by the encryption algorithm. In client queries, the other half, is filled with NUL bytes. ::= variable-length padding. 3. Padding for client queries over UDP -------------------------------------- Prior to encryption, queries are padded using the ISO/IEC 7816-4 format. The padding starts with a byte valued 0x80 followed by a variable number of NUL bytes. must be at least bytes. If the length of the client query is less than , the padding length must be adjusted in order to satisfy this requirement. is a variable length, initially set to 256 bytes, and must be a multiple of 64 bytes. 4. Client queries over UDP -------------------------- Client queries sent using UDP must be padded as described in section 3. A UDP packet can contain a single query, whose entire content is the construction documented in section 2. UDP packets using the DNSCrypt protocol can be fragmented into multiple IP packets and can use a single source port. After having received a query, the resolver can either ignore the query or reply with a DNSCrypt-encapsulated response. The client must verify and decrypt the response using the resolver's public key, the shared secret and the received nonce. If the response cannot be verified, the response must be discarded. If the response has the TC flag set, the client must: 1) send the query again using TCP 2) set the new minimum query length as: ::= min( + 64, ) must be capped so that the full length of a DNSCrypt packet doesn't exceed the maximum size required by the transport layer. The client may decrease , but the length must remain a multiple of 64 bytes. 5. Padding for client queries over TCP -------------------------------------- Prior to encryption, queries are padded using the ISO/IEC 7816-4 format. The padding starts with a byte valued 0x80 followed by a variable number of NUL bytes. The length of is randomly chosen between 0 and 256 bytes, but the total length of must be a multiple of 64 bytes. For example, an originally unpadded 56-bytes DNS query can be padded as: <56-bytes-query> 0x80 0x00 0x00 0x00 0x00 0x00 0x00 0x00 or <56-bytes-query> 0x80 (0x00 * 71) or <56-bytes-query> 0x80 (0x00 * 135) or <56-bytes-query> 0x80 (0x00 * 199) 6. Client queries over TCP -------------------------- Client queries over TCP only differ from queries sent over UDP by the padding length computation. Unlike UDP queries, a query sent over TCP can be shorter than the response. After having received a response from the resolver, the client and the resolver must close the TCP connection. Multiple transactions over the same TCP connections are not allowed by this revision of the protocol. 7. Common definitions for resolver responses -------------------------------------------- ::= ::= 0x72 0x36 0x66 0x6e 0x76 0x57 0x6a 0x38 ::= ::= the nonce sent by the client in the related query. ::= the client's secret key. ::= the resolver's public key. ::= a unique response identifier for a given (, ) tuple. The length of depends on the chosen encryption algorithm. ::= AE(, , ) AE ::= the authenticated encryption algorithm. ::= the shared key derived from and , using the key exchange algorithm defined in the chosen certificate. ::= the unencrypted resolver response. The response is not modified; in particular, the query flags are not altered and the response length must be kept in responses prepared to be sent over TCP. ::= variable-length padding. 8. Padding for resolver responses --------------------------------- Prior to encryption, responses are padded using the ISO/IEC 7816-4 format. The padding starts with a byte valued 0x80 followed by a variable number of NUL bytes. The total length of must be a multiple of 64 bytes. The length of must be between 0 and 256 bytes, and must be constant for a given (, ) tuple. A pseudo random function can be used to satisfy this requirement. 9. Resolver responses over UDP ------------------------------ The resolver must verify and decrypt client queries. Queries that cannot be verified must be ignored. Any client-supplied nonce must be accepted. However, a resolver can ignore or refuse queries encrypted using untrusted public keys. Responses must be padded using the algorithm described in section 8 and encrypted as described in section 7. If the full client query length is shorter than 256 bytes, or shorter than the full response length, the resolver may truncate the response and set the TC flag prior to encrypting it. The response length should always be equal to or shorter than the initial client query length. 10. Resolver responses over TCP ------------------------------- The resolver must verify and decrypt client queries. Queries that cannot be verified must be ignored. Any client-supplied nonce must be accepted. However, a resolver can ignore or refuse queries encrypted using untrusted public keys. Responses must be padded using the algorithm described in section 8 and encrypted as described in section 7. Responses must be send unmodified even if their length exceeds the length of the client query. 11. Authenticated encryption and key exchange algorithm ------------------------------------------------------- The X25519-XSalsa20Poly1305 construction, and the way to use it described in this section, must be referenced in certificates as version 1 of the public-key authenticated encryption system. In the current version, the construction, originally implemented in the NaCl cryptographic library and exposed under the name "crypto_box", uses the Curve25119 elliptic curve in Montgomery form and the hsalsa20 hash function for key exchange, the XSalsa20 stream cipher, and Poly1305 for message authentication. The public and secret keys are 32 bytes long in storage. The MAC is 16 bytes long, and is prepended to the ciphertext. When using X25519-XSalsa20Poly1305, this construction requires a 24 bytes nonce, that must not be reused for a given shared secret. With a 24 bytes nonce, a question sent by a DNSCrypt client must be encrypted using the shared secret, and a nonce constructed as follows: 12 bytes chosen by the client followed by 12 NUL (0) bytes. A response to this question must be encrypted using the shared secret, and a nonce constructed as follows: the bytes originally chosen by the client, followed by bytes chosen by the resolver. The resolver's half of the nonce should be randomly chosen. The client's half of the nonce can include a timestamp in addition to a counter or to random bytes, so that when a response is received, the client can use this timestamp to immediately discard responses to queries that have been sent too long ago, or dated in the future. 12. Certificates ---------------- The client begins a DNSCrypt session by sending a regular unencrypted TXT DNS query to the resolver IP address, on the DNSCrypt port, first over UDP, then, in case of failure, timeout or truncation, over TCP. Resolvers are not required to serve certificates both on UDP and TCP. The name in the question must follow this scheme: ::= . dnscrypt-cert . A major protocol version has only one certificate format. A DNSCrypt client implementing the second version of the protocol must send a query with the TXT type and a name of the form: 2.dnscrypt-cert.example.com The zone must be a valid DNS name, but may not be registered in the DNS hierarchy. A single provider name can be shared by multiple resolvers operated by the same entity, and a resolver can respond to multiple provider names, especially to support multiple protocol versions simultaneously. In order to use a DNSCrypt-enabled resolver, a client must know the following information: - The resolver IP address and port - The provider name - The provider public key The provider public key is a long-term key whose sole purpose is to verify the certificates. It is never used to encrypt or verify DNS queries. A unique provider public key can be used to sign multiple certificates. For example, an organization operating multiple resolvers can use a unique provider name and provider public key across all resolvers, and just provide a list of IP addresses and ports. Each resolver may have its unique set of certificates that can be signed with the same key. Certificates should be signed on dedicated hardware and not on the resolvers. Resolvers must serve the certificates, provided that they have already been signed. A successful response to certificate request contains one or more TXT records, each record containing a certificate encoded as follows: ::= ::= 0x44 0x4e 0x53 0x43 ::= the cryptographic construction to use with this certificate. For X25519-XSalsa20Poly1305, must be 0x00 0x01. For X25519-XChacha20Poly1305, must be 0x00 0x02. ::= 0x00 0x00 ::= a 64-byte signature of ( ) using the Ed25519 algorithm and the provider secret key. Ed25519 must be used in this version of the protocol. ::= the resolver short-term public key, which is 32 bytes when using X25519. ::= the first 8 bytes of a client query that was built using the information from this certificate. It may be a truncated public key. Two valid certificates cannot share the same . ::= a 4 byte serial number in big-endian format. If more than one certificates are valid, the client must prefer the certificate with a higher serial number. ::= the date the certificate is valid from, as a 4-byte unsigned Unix timestamp. ::= the date the certificate is valid until (inclusive), as a 4-byte unsigned Unix timestamp. ::= empty in the current protocol version, but may contain additional data in future revisions, including minor versions. The computation and the verification of the signature must include the extensions. An implementation not supporting these extensions must ignore them. Certificates made of these information, without extensions, are 116 bytes long. With the addition of the cert-magic, es-version and protocol-minor-version, the record is 124 bytes long. After having received a set of certificates, the client checks their validity based on the current date, filters out the ones designed for encryption systems that are not supported by the client, and chooses the certificate with the higher serial number. DNSCrypt queries sent by the client must use the header of the chosen certificate, as well as the specified encryption system and public key. The client must check for new certificates every hour, and switch to a new certificate if: - the current certificate is not present or not valid any more or - a certificate with a higher serial number than the current one is available. 13. Operational perspective --------------------------- Special attention should be paid to the uniqueness of the generated secret keys. Client public keys can be used by resolvers to authenticate clients, link queries to customer accounts, and unlock business-specific features such as redirecting specific domain names to a sinkhole. Resolvers accessible from any client IP address can also opt for only responding to a set of whitelisted public keys. Resolvers accepting queries from any client must accept any client public key. In particular, an anonymous client can generate a new key pair for every session, or even for every query. This mitigates the ability for a resolver to group queries by client public keys, and discover the set of IP addresses a user might have been operating. Resolvers that do not keep query logs should rotate the short-term key pair every 24 hours, and must throw away the previous secret key. During a key rotation, and provided that the old key hasn't been compromised, a resolver should accept both the old and the new key for at least 4 hours, and public them as different certificates. Provider public keys may be published as a DNSSEC-signed TXT records, in the same zone as the provider name. For example, a query for the TXT type on the name "2.pubkey.example.com" may return a signed record containing a hexadecimal-encoded provider public key for the provider name "2.dnscrypt-cert.example.com". While authenticated and unauthenticated queries can share the same resolver TCP and/or UDP port, this should be avoided. Client magic numbers do not completely prevent collisions with legitimate unauthenticated DNS queries. In addition, DNSCrypt offers some mitigation against abusing resolvers to conduct DDoS attacks. Accepting unauthenticated queries on the same port would defeat this mechanism. As this version of the protocol may require many short-lived TCP sessions, the TCP Fast Open mechanism should be used where available. 14. Implementations ------------------- Known open source implementations of the DNSCrypt version 2 protocol are: - dnscrypt-wrapper - server-side implementation in C - powerdns dnsdist - a DNS loadbalancer that provides server-side DNSCrypt - dnscrypt-proxy - client-side implementation in C - pcap_dnsproxy - client-side implementation in C++ - dnscrypt-python - client-side implementation in Python Known closed source implementations of the protocol : - OpenNIC Fusl servers - server-side implementation as a Linux kernel module dnscrypt-proxy-1.9.4/INSTALL000644 000765 000024 00000036610 13040635303 015202 0ustar00jstaff000000 000000 Installation Instructions ************************* Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without warranty of any kind. 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Run `configure --help' for more details. dnscrypt-proxy-1.9.4/libltdl/000755 000765 000024 00000000000 13040635350 015573 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/m4/000755 000765 000024 00000000000 13040635350 014465 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/Makefile.am000644 000765 000024 00000004264 13040604253 016205 0ustar00jstaff000000 000000 ACLOCAL_AMFLAGS = -I m4 EXTRA_DIST = \ DNSCRYPT-V2-PROTOCOL.txt \ README-iOS.markdown \ README-PLUGINS.markdown \ README-WINDOWS.markdown \ README.markdown \ THANKS \ apparmor.profile.dnscrypt-proxy \ autogen.sh \ dnscrypt-proxy.conf \ dnscrypt-proxy.service.in \ dnscrypt-proxy.socket \ org.dnscrypt.osx.DNSCryptProxy.plist.in SUBDIRS = \ dist-build \ man if PLUGINS SUBDIRS += \ libltdl endif SUBDIRS += \ contrib \ src \ test dist_pkgdata_DATA = \ dnscrypt-resolvers.csv \ minisign.pub doc_DATA = \ README.markdown \ COPYING \ DNSCRYPT-V2-PROTOCOL.txt \ dnscrypt-proxy.conf if PLUGINS doc_DATA += \ README-PLUGINS.markdown endif noinst_DATA = \ org.dnscrypt.osx.DNSCryptProxy.plist if HAVE_SYSTEMD noinst_DATA += \ dnscrypt-proxy.service endif dnscrypt-proxy.service: dnscrypt-proxy.service.in $(SED) \ -e 's|[@]sbindir@|$(sbindir)|g' \ -e 's|[@]sysconfdir@|$(sysconfdir)|g' \ < dnscrypt-proxy.service.in > dnscrypt-proxy.service org.dnscrypt.osx.DNSCryptProxy.plist: org.dnscrypt.osx.DNSCryptProxy.plist.in $(SED) \ -e 's|[@]sbindir@|$(sbindir)|g' \ -e 's|[@]sysconfdir@|$(sysconfdir)|g' \ < org.dnscrypt.osx.DNSCryptProxy.plist.in > org.dnscrypt.osx.DNSCryptProxy.plist CLEANFILES = \ dnscrypt-proxy.service \ dnscrypt-update-resolvers.sh \ org.dnscrypt.osx.DNSCryptProxy.plist install-data-local: @$(mkinstalldirs) $(DESTDIR)$(sysconfdir); 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\ if [ -f $(DESTDIR)$(sysconfdir)/dnscrypt-proxy.conf ]; then \ if cmp -s $(srcdir)/dnscrypt-proxy.conf $(docdir)/dnscrypt-proxy.conf; then \ echo "Configuration file unchanged"; \ else \ echo "The example configuration file [$(docdir)/dnscrypt-proxy.conf] has been updated."; \ echo "You may want to compare it with the one at [$(DESTDIR)$(sysconfdir)/dnscrypt-proxy.conf]."; \ fi; \ else \ $(INSTALL_DATA) $(srcdir)/dnscrypt-proxy.conf $(DESTDIR)$(sysconfdir)/dnscrypt-proxy.conf; \ fi uninstall-local: @if cmp -s $(srcdir)/dnscrypt-proxy.conf $(DESTDIR)$(sysconfdir)/dnscrypt-proxy.conf; then \ echo "$(DESTDIR)$(sysconfdir)/dnscrypt-proxy.conf has not changed and will be removed."; \ rm -f $(DESTDIR)$(sysconfdir)/dnscrypt-proxy.conf; \ rmdir $(DESTDIR)$(sysconfdir) 2> /dev/null ||:; \ fi # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: dnscrypt-proxy-1.9.4/man/000755 000765 000024 00000000000 13040635350 014720 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/minisign.pub000644 000765 000024 00000000200 13037731714 016471 0ustar00jstaff000000 000000 untrusted comment: minisign public key used to sign the resolvers list RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3 dnscrypt-proxy-1.9.4/NEWS000644 000765 000024 00000034275 13040614011 014646 0ustar00jstaff000000 000000 * Version 1.9.4 - The default installation script in version 1.9.3 unconditionally replaced the configuration file with the example one. This has been fixed. - The resolver name can be set to "random" in order to pick a random resolver. - Paths are not hardcoded any more in the sample systemd and plist files. - The dnscrypt-update-resolvers.sh and resolvers-check.sh scripts have been moved to the contrib/ directory. - An IPV4_ONLY environment variable can be set to skip IPv6-only entries in resolvers-check.sh. - Precompiled iOS/Android/Windows packages have become more consistent, and now include basic documentation. - Tests are now run using random resolvers. * Version 1.9.3 - This version can be compiled on Linux distributions using the musl C library. - Version 1.9.3 also restores compatibility with ancient Linux kernels that didn't support `SO_REUSEPORT`, without having to explicitly compile the package with `NO_REUSEPORT`. - On Linux, the service now prints when the system doesn't have enough entropy to initialize the PRNG. * Version 1.9.2 - Compatibility with ancient libsodium versions (1.0.0, as still shipped in Debian Jessie) has been restored. - With newer libsodium versions, the XChaCha20-Poly1305 can now actually be used on servers supporting this construction. - The configuration file can now recursively include other configuration files, with the `Include` keyword. - Error messages were improved. - The generate-domains-blacklist.py script now supports whitelists in addition to blacklists, and provides more example feeds. - The blocking plugin sometimes didn't match overlapping rules. This should have been fixed for good. - The `IgnoreTimestamps` and `LogLevel` options can now be controlled using Windows registry keys. - Log error messages whose level is lower than `LOG_NOTICE` now go to `stderr` instead of `stdout`. - On Linux, a BPF filter is attached to the client-side UDP socket in order to drop invalid DNS queries right away. - The `NO_REUSEPORT` preprocessor macro can be defined in order to avoid enabling `SO_REUSEPORT` on older linux-sunxi kernels. - The package can be compiled on Debian 6. - `--version` now reports useful information about the way the server was compiled. * Version 1.9.1 - The blocking plugin introduced in version 1.9.0 didn't properly handle overlapping rules. This has been fixed. - The documentation and examples were updated. - The minimum time to keep a record in cache can be specified in the cache plugin, with the `--min-ttl` option. - The example generate-domains-blacklist.py script produces a more optimized list, without overlapping names. * Version 1.9.0 - Support for TCP was added to the `hostip` tool. - New plugin: `example-ldns-forwarding`. This plugin forwards queries for a specific set of domain names to one or more non-DNSCrypt resolvers. This can be used to send queries for private domains to the router or to an internal DNS server. - New plugin: `example-cache`. This plugin implements a simple, zero-configuration DNS response cache. - The default plugin paths, as loaded via the configuration file, use the native module file names instead of libtool's `.la` files. Installing the `.la` files has now become optional. - Many changes and simplifications were made to the documentation. - `-Z` (syslog prefix) doesn't imply `-S` any more. - The `ResolverAddress` option can now be used even if a full configuration was provided via `ResolverName` in order to override the resolver IP and port. - A new `contrib` folder is born, and currently contains a Python script to automatically generate a malware/spam/ads/tracker blacklist from public lists. More contributions would be more than welcome! - Example startup scripts now use the configuration file. - A `SIGHUP` signal sent to the proxy now reloads all the plugins. This can be used after a plugin configuration update, or to rotate the log files. - `--ignore-timestamps` didn't work as expected. This has been fixed, thanks to Toni Uhlig. - `make install` does not overwrite an existing `dnscrypt-proxy.conf` file any more. An up-to-date example is installed as `dnscrypt-proxy.conf.example`. - The query log and the logfile of hits for blacklisted domains/IPs are now more detailed and more readable. As an alternative to human-readable records, prefixing a log file name with "ltsv:" causes the log entries to use the LTSV structured format. These logs can thus be easily sent to Flowgger/ElasticSearch for visualization and reporting. - The domain/ip blocking plugin was completely rewritten, and is now extremely fast even with very lasrge blacklists of names and IP addresses. It can now be used to locally block malware/spam/ads/trackers and other unwanted content, based on prefixes, suffixes and keywords. * Version 1.8.1 - Version 1.8.0 didn't use the same Windows registry key as past versions. This has been fixed. In order to upgrade from 1.8.0, it is recommended to uninstall the service before upgrading (using the `dnscrypt-proxy --uninstall` command). - The SDK used to build Android binaries was downgraded in order to retain compatibility with Android 4.1 (Jelly Bean). * Version 1.8.0: - All the features of the proxy can now be enabled using a configuration file. - On Windows, a new option, `--service-name` can be used to set the service name, so that multiple instances can run simultaneously. - On Windows, `--install-with-config-file` can be used to install a service using a configuration file. - The protocol can now use the XChaCha20 cipher as a faster alternative to XSalsa20. - Time stamps are now being added to log files, including log files from plugins. - `SIGINT` & `SIGTERM` handlers have been added to give plugins a chance to call a teardown function. - A message is now displayed when servers are using a very long key rotation period. - The domain blocking plugin is now a `pre_filter`: blocked queries are not sent to upstream resolvers any more [breaking change for logging resolvers]. - The domain blocking plugin do not consider empty files an error any more. - The domain blocking plugin has a new option (`--logfile`) to log queries sent to blacklisted IPs and names. - Android's update-binary file is not part of the source distribution any more. - libevent2 has been updated. - The resolvers list was updated to the latest version. - iOS builds now require iOS 6.0.0. - Windows builds now link ldns against LibreSSL. * Version 1.7.0: - Plugins are now enabled by default. - Windows: new registry key: `LogFile`. - New command-line option: `--ignore-timestamps` to ignore timestamps when performing certificate validation. - New command-line option: `--syslog-prefix` to add a prefix to log messages. - Certificates can now be retrieved using TCP. - Libevent was updated to version 2.0.23. - Certificates serial numbers are printed as a string if possible. - The list of known public resolvers was updated. - Builds for Win64 are now available. * Version 1.6.1: - Security: malformed packets could cause the OpenDNS deviceid, OpenDNS set-client-ip, blocking and AAAA blocking plugins to use uninitialized pointers, leading to a denial of service or possibly code execution. The vulnerable code is present since dnscrypt-proxy 1.1.0. OpenDNS users and people using dnscrypt-proxy in order to block domain names and IP addresses should upgrade as soon as possible. * Version 1.6.0: - New feature: public-key based client authentication (-K), for private and commercial DNS services to securely authenticate the sender of a query no matter what the source IP address is, without altering the DNS query. - On Windows, paths are now relative to the application folder. Which means that the -L option is usually not required any more if the CSV file is in the same folder as the dnscrypt-proxy executable. Full paths to plugins are not required any more either; plugin names can be given directly. * Version 1.5.0: - New option: -E, to use an ephemeral key pair for each query. - Logging to files is supported on Windows. - TCP FASTOPEN is now enabled on Linux. * Version 1.4.3: - libevent update, including a fix for CVE-2014-6272 - Two new public dnscrypt resolvers were added: opennic-us-wa-ns1 and dnscrypt.org-fr. - d0wn servers in France IP have changed. - Compilation fixes. * Version 1.4.2: - New compilation switch: --with-systemd, to enable socket activation support when using systemd. - The list of public DNSCrypt-enabled resolvers was updated. - Libevent2 updates. * Version 1.4.1: - Alternative ports to dnscrypt.eu servers have been added - Android build scripts are now part of the package - UDP queries timing out are not retried any more. This caused some issues and was already better handled by stub resolvers and caching name servers. * Version 1.4.0: - Security: versions 0.11 to 1.3.3 were vulnerable to a denial of service when running out of output buffer space. Reported by @iamultra. - Windows: --uninstall now actually stops the service - Windows: registry keys are automatically created for a given provider when installing the service. - The resolver to use and its configuration can now be specified as a definition file + the name of the resolver to use. The new command-line options to use are --resolvers-list= (optional on non-Windows platforms) and --resolver-name=. This deprecates --provider-key, --provider-name and --resolver-address. - Documentation and diagnostics have been improved. * Version 1.3.3: - Try to send questions as big as the response can be. Upgrading is highly recommended, as the server can refuse to respond to queries using UDP if the response is larger than the question. * Version 1.3.2: - faster startup on iOS and Android - New command-line switch: --test, in order to check if a certificate can be used, with an optional time safety margin. - The package now includes an AppArmor profile, thanks to InsanityBit. - Plugins using ldns can now be compiled on Windows. * Version 1.3.1: - dnscrypt-proxy doesn't ship its own, possibly outdated copy of libsodium any more, and always picks the system one instead. - Minor compilation improvements for iOS, Android and FreeBSD. * Version 1.3.0: - The bundled NaCl library with only reference implementations has been replaced with libsodium, leading to significant performance improvements. - A new command-line switch, --loglevel, allows adjusting the log verbosity. * Version 1.2.1: - Add support for certificates split into multiple TXT records. Contributed by Yecheng Fu, thanks! * Version 1.2.0: - A pre-filter can now totally bypass the resolver and directly send a reply to the client. - A new example plugin has been shipped: ldns-aaaa-blocking. It directly sends an empty response to AAAA queries in order to significantly speed up lookups on hosts without IPv6 connectivity (but with clients still asking for AAAA records anyway). - Example plugins requiring ldns can be compiled on Windows. - Paths with a drive name are now recognized as absolute paths on Windows. * Version 1.1.0: - dnscrypt-proxy can now use plugins in order to alter/inspect queries and responses before and after they are relayed. See README-PLUGINS.markdown for more information. - The default max payload size has been trimmed down to 1252 bytes for compatibility with some scary network setups. - The --local-port and --resolver-port options are gone for good. They had been deprecated for a while and were undocumented since version 1.0. - Multiple certificates are now properly handled. - Memory leaks have been fixed, a big bad use-after-free condition has been fixed, uninitialized variables have been initialized. Upgrading is recommended, especially on Windows. * Version 1.0.1: - dnscrypt-proxy and hostip can now be compiled for Android and Solaris. - The proxy can now run as a Windows service. The new --install and --uninstall command-line switches can automatically register the proxy as a service. Startup options are read from the Windows registry. See the README-WINDOWS.markdown file for details. * Version 1.0: - Autotools scripts have been improved. - 1.0. * Version 0.12: - Datagrams are resent after running out of memory, or if the queue was full. - Missing compilation flags broke 0.11 on some Linux distributions. This has been fixed. * Version 0.11: - A new tool, hostip, can resolve host names before dnscrypt-proxy is started. This should help resolving chicken-and-egg problems on routers, as reported by LanceThePants. - The --local-port and --resolver-port options have been deprecated. Please use --local-address=: and --resolver-address=: instead. - Improved stability on Win32. * Version 0.10.1: - The daemon didn't start on some Linux distributions lacking the RANDOM_UUID sysctl. This has been fixed. - The config.guess files have been patched in order to run out of the box on Bitrig. * Version 0.10: - Almost a complete rewrite, with libuv being replaced by libevent. - The max number of simultaneous queries is now global, not per-protocol. - As an insane amount of routers and ISPs are hijacking port 53, the default server port is now 443. - iOS binaries are now smaller. - More dtrace probes. * Version 0.9.5: - Full IPv6 support. * Version 0.9.4: - The --tcp-port option is gone. The resolver port can now be set with --resolver-port= and forcing use of TCP can be achieved with --tcp-only. - portage files for Gentoo have been added. - Libuv has been updated. * Version 0.9.3: - Support for native Windows builds. - --daemonize has been fixed. * Version 0.9.2: - Support for cross-compilation. In particular, the proxy can now compile and work on iOS. * Version 0.9.1: - DNSCrypt should compile out of the box on DD-WRT and other uclibc-based systems. * Version 0.9: - libuv has been updated. - Enhanced compatibility with non-Intel architectures. * Version 0.8: - Support for Windows (through Cygwin, for now) has been improved. - Documentation has been improved. - The package now compiles on Dragonfly BSD-current. - Signatures are now using ed25519 instead of edwards25519sha512batch. - The proxy now compiles on Openwall Linux. - Libuv has been updated. - A sample .plist file and a Homebrew formula for OSX are now provided. * Version 0.7: - Initial public release. dnscrypt-proxy-1.9.4/org.dnscrypt.osx.DNSCryptProxy.plist.in000644 000765 000024 00000002065 13040510544 023602 0ustar00jstaff000000 000000 Label org.dnscrypt.osx.DNSCryptProxy KeepAlive RunAtLoad ProgramArguments @sbindir@/dnscrypt-proxy @sysconfdir@/dnscrypt-proxy.conf StandardErrorPath /dev/null StandardOutPath /dev/null UserName root dnscrypt-proxy-1.9.4/README000644 000765 000024 00000000024 13037731714 015030 0ustar00jstaff000000 000000 See README.markdown dnscrypt-proxy-1.9.4/README-iOS.markdown000644 000765 000024 00000001355 13040434007 017336 0ustar00jstaff000000 000000 DNSCrypt client proxy for iOS ============================= This currently requires a jailbroken device. Pre-compiled binaries for iOS 5.1.1 and later are available at https://download.dnscrypt.org/ 1) Add the content of the `bin` directory of the archive into the `bin` directory of the device. Ditto for the `sbin` and `share` directories. 2) Edit the `dnscrypt-proxy.conf` file as well as the `org.dnscrypt.osx.DNSCryptProxy.plist` service file. You might have to change `LocalCache` to `no`. 3) Copy the `org.dnscrypt.osx.DNSCryptProxy.plist` file into `/Libary/LaunchDaemons` on the device. 4) Reboot or type: launchctl load org.dnscrypt.osx.DNSCryptProxy.plist 5) Edit your Wifi settings to use `127.0.0.1` as a DNS resolver. dnscrypt-proxy-1.9.4/README-PLUGINS.markdown000644 000765 000024 00000013244 13037731714 020000 0ustar00jstaff000000 000000 DNSCrypt Plugins ================ Overview -------- `dnscrypt-proxy` can be extended with plugins. A plugin can implement *pre-filters* and *post-filters*. A DNS query received by the proxy will pass through all *pre-filters* before being encrypted, signed, and sent to the upstream DNS resolver. Once a response has been received by the proxy, this response is going to be validated and decrypted before passing through all *post-filters*, and eventually the end result will eventually be delivered to the client. Filters are given the packets in wire format. Every filter can inspect and alter these packets at will. A filter can also tell the proxy to totally ignore a query. query -> pre-plugins -> encryption/authentication -> resolver client <- post-plugins <- verification/decryption <- resolver Usage ----- Technically, a plugin is just a native shared library. A good old `.so` file on Unix, a `.dylib` file on OSX and a `.DLL` file on Windows. Support for plugins is enabled by default on most platforms. If the `ltdl` library is found on the system, it will be picked up. If not, a built-in copy will be used instead. If you intend to distribute a binary package that should run on systems without the `ltdl` library (which is probably the case on Windows), add `--with-included-ltdl`: ./configure --with-included-ltdl Plugins can inspect and mangle packets in any way, but before reinventing the wheel, take a look at what the `ldns` library has to offer. `ldns` makes it really easy to parse and build any kind of DNS packet, can validate DNSSEC records, and is rock solid. If `ldns` is available on the current system, additional example plugins will be compiled. If the `./configure` isn't given a different prefix, example plugins are installed in `/usr/local/lib/dnscrypt-proxy`. `dnscrypt-proxy` can load any number of plugins using the `--plugin` switch, followed by the path to a plugin (library or libtool `.la` file): dnscrypt-proxy \ --plugin=/usr/local/lib/dnscrypt-proxy/libdcplugin_example.la \ --plugin=/usr/local/lib/dnscrypt-proxy/libdcplugin_example2.la A full path is actually not required for plugins sitting in the default plugins directory (`/usr/local/lib/dnscrypt-proxy` by default): dnscrypt-proxy \ --plugin=libdcplugin_example.la \ --plugin=libdcplugin_example2.la Filters will always be applied sequentially, in the given order. These plugins can also be enabled in the configuration file with one or more `Plugin` directives: Plugin libdcplugin_example.la Plugin libdcplugin_example2.la On Unix systems, a file containing a plugin must be owned either by root, or by the user running the proxy. You can relax this rule. This can be especially useful on OSX when using Homebrew, that encourages /usr/local to be owned by a non-root user. In order to relax this rule, use `--enable-relaxed-plugins-permissions`: ./configure --enable-relaxed-plugins-permissions Each plugin can optionally parse one or more arguments: --plugin=...libdcplugin_example.la,--one,--two,--three=4 --plugin=...libdcplugin_example2.la,127.0.0.1 Plugins are reloaded when the proxy receives a `HUP` signal. This can be used to rotate log files, or reload updated configuration files. The plugin API -------------- When compiled with support for plugins, `dnscrypt-proxy` installs development headers (in `/usr/local/include/dnscrypt` with the default prefix). In addition, the `dnscrypt-proxy` source code ships with a few example plugins in the `src/plugins` directory to get you started. The `` header file is the only one you need to include in a plugin. Feel free to take a look at its Doxygen documentation. The bare minimum a plugin needs is to mention `DCPLUGIN_MAIN(__FILE__)` and to implement is a `dcplugin_init()` function. This function is evaluated when the proxy starts, and can optionally parse a list of arguments: #include DCPLUGIN_MAIN(__FILE__); int dcplugin_init(DCPlugin * const dcplugin, int argc, char *argv[]) { return 0; } The DCPlugin type is an opaque structure that can store plugin-local data using the `dcplugin_get_user_data()` and `dcplugin_set_user_data()` macros. A filter can implement a pre-filter, a post-filter, or both. The related functions are optional. DCPluginSyncFilterResult dcplugin_sync_pre_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet); DCPluginSyncFilterResult dcplugin_sync_post_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet); These functions are given an opaque `DCPluginDNSPacket` type, storing the packet in wire format, and metadata, including the client IP address. Avoid accessing these metadata directly, and use the macros defined in `dnscrypt/plugins.h` instead. A filter can alter the content of the DNS packet, and change its length with `dcplugin_set_wire_data_len()`. However, the size of the packet should never be larger than the size returned by `dcplugin_get_wire_data_max_len`. The return code of a filter can be either of: - `DCP_SYNC_FILTER_RESULT_OK` - `DCP_SYNC_FILTER_RESULT_DIRECT` (only in a pre-filter) to bypass the resolver and directly send the (possibly modified) packet to the client. Post-filters will be bypassed as well. - `DCP_SYNC_FILTER_RESULT_KILL` in order to drop the packet. - `DCP_SYNC_FILTER_RESULT_ERROR` to drop the packet and indicate that a non-fatal error occurred. API documentation ----------------- For more info about the API, see the online [dnscrypt API documentation](https://dnscrypt.org/plugin-api/plugin_8h.html). The `dnscrypt-proxy` source code also ships with example plugins you may want to take a look at, in the `src/plugins` directory. dnscrypt-proxy-1.9.4/README-WINDOWS.markdown000644 000765 000024 00000027442 13040434007 020003 0ustar00jstaff000000 000000 Using the DNSCrypt client on Windows ==================================== `dnscrypt-proxy` is DNSCrypt client that works on many platforms, including Windows. It doesn't provide any user interface, and has to be set up using the command-line. Independent projects such as [Simple DNSCrypt](https://simplednscrypt.org/) provide a user interface on top of `dnscrypt-proxy`, so that the core client code can always be up-to-date, and the same as other platforms. However, using `dnscrypt-proxy` directly is fairly simple and opens a lot of options. Quickstart ---------- The following instructions are provided as offline documentation, but better/more up to date information is available online: [dnscrypt-proxy guide](https://github.com/jedisct1/dnscrypt-proxy/wiki). 1) Download and extract the latest [Windows package for dnscrypt](https://download.dnscrypt.org/dnscrypt-proxy/). 2) Extract the `dnscrypt-proxy-win32` or `dnscrypt-proxy-win64` folder anywhere, but this has to be a permanent location. 3) The `dnscrypt-resolver.csv` file includes a list of public DNS resolvers supporting the DNSCrypt protocol. The most recent version can be previewed online: [public DNS resolvers supporting DNSCrypt](https://dnscrypt.org/dnscrypt-resolvers.html) and downloaded: [dnscrypt-resolvers.csv](https://download.dnscrypt.org/dnscrypt-proxy/dnscrypt-resolvers.csv). Choose one that fits your needs. Its identifier ("resolver name") is in the first column (for example: `dnscrypt.org-fr`). 4) Edit the configuration file `dnscrypt-proxy.conf`. 5) Open an elevated command prompt (see below), enter the dnscrypt-proxy folder and type: .\dnscrypt-proxy.exe dnscrypt-proxy.conf --test=0 This command just tests if everything is properly installed on your end, and if the resolver is properly working. If everything looks fine, the command should display the server key fingerprint and exit right away. If an error is displayed, retry with a different server. 5) So far, so good? Now, enable the service for real: .\dnscrypt-proxy.exe --install-with-config-file=dnscrypt-proxy.conf 6) Open the network preferences ("Network connections", then select your network adapter and hit "Properties"). Then in the "Internet Protocol Version 4 (TCP/IPv4)" settings use `127.0.0.1` instead of the default DNS resolver address. Congratulations, you're now using DNSCrypt! IPv6 ---- Do you have IPv6 connectivity? No problem! In the preferences pane for a given network connection, Windows has IPv6-specific settings under "Internet Protocol Version 6 (TCP/IPv6)". The DNS server addresses have to be IPv6 addresses, so enter the IPv6 representation of `127.0.0.1`: ::FFFF:127.0.0.1 Done. You can now enjoy the DNSCrypt proxy both for IPv4 and IPv6 connections. How to open an elevated command prompt -------------------------------------- On Windows 8.1 and Windows 10, press the Windows key + the X key and select "Windows Command Prompt (Admin)" or "Windows PowerShell (Admin)". If you get the message: [ERROR] Unable to bind (UDP) [Address already in use [WSAEADDRINUSE ]] chances are that you tried to start the proxy from a limited (non-elevated) command prompt. Temporarily disabling DNSCrypt ------------------------------ `dnscrypt-proxy` receives DNS queries from your applications on `127.0.0.1` (by default), wraps them into DNSCrypt queries, forwards them to the real DNS resolver, securely receives and verifies the responses, and forwards the legitimate ones to your client applications. If you changed the DNS settings for a given network interface to `127.0.0.1`, you can revert these settings to what they used to be (or to any non-DNSCrypt resolver) anytime in order to stop using DNSCrypt. Changing the address back to `127.0.0.1` makes the network interface use the DNSCrypt proxy again. The Windows service ------------------- On Windows, `dnscrypt-proxy` can run as a Windows service, and this is how it was set up in the quickstart section above. In addition to the command-line switches available on other platforms, the Windows builds of the proxy add the following switches: - `--install`: install the proxy as a service. - `--install-with-config-file=`: install the proxy as a service, using the provided configuration file (`dnscrypt-proxy.conf`). Double check that the configuration file is valid prior to installing the service. - `--uninstall`: uninstall the service (but not the software - the service can be restarted later) - `--service-name=`: set the service name (by default: `dnscrypt-proxy`). Multiple services with a different configuration can run simultaneously if they use distinct service names. `--service-name` must be combined with `--install`, `--install-with-config-file` or `--uninstall`. Example: how to try a different DNSCrypt resolver: Step 1 - Uninstall the previous service: .\dnscrypt-proxy --uninstall Step 2 - Reinstall/restart the service, with the new settings: .\dnscrypt-proxy -R --install Sharing the proxy with the local network ---------------------------------------- By default, only the Windows machine running the proxy can use it. However, it can be convenient to make it accessible from any device on the local network. For example, smartphones and tablets can use the Windows machine as a DNS resolver (which will actually be the DNSCrypt proxy) instead of running DNSCrypt themselves. In order to do so, just add the following option to the command-line: `--local-address=0.0.0.0`. That is: .\dnscrypt-proxy -R --install --local-address=0.0.0.0 And use the IP address of the Windows machine in the DNS settings of any devices of the local network. Removing the software from the system ------------------------------------- If this DNSCrypt client doesn't fit your needs, we are very sorry for this, and we'd love to hear about how we could make it better. So, go to the "Support" section of the [DNSCrypt](https://dnscrypt.org/) site and tell us your story. Removing `dnscrypt-proxy` from your system is straightforward. Before doing so, make sure that the DNS settings of your network interfaces have been restored to what they were before (which, most of the time, is just "DHCP"). Then, uninstall the service: .\dnscrypt-proxy --uninstall And delete the directory. Advanced configuration ---------------------- Many additional features (logging, filtering...) can be enabled by loading a configuration file. This requires at least dnscrypt-proxy version 1.8.0. 1) Make sure that the service is not running: .\dnscrypt-proxy --uninstall 2) Edit the `dnscrypt-proxy.conf` configuration file according to your needs. 3) Check that that configuration actually works as expected, by starting the proxy without installing the service: .\dnscrypt-proxy dnscrypt-proxy.conf Check that errors are not printed, and that DNS queries sent to the configured IP addresses receive responses. Hit `Control`+`C` in order to stop the server and get back to the interactive command prompt. 4) If that setup looks fine, install the Windows service so that it loads that configuration file automatically: .\dnscrypt-proxy --install-with-config-file=dnscrypt-proxy.conf Plugins ------- Plugins should be listed as paths to the `.DLL` files, optionally followed by a coma and plugin-specific arguments: .\dnscrypt-proxy -R --plugin=libdcplugin_example_ldns_aaaa_blocking.dll .\dnscrypt-proxy -R --plugin=libdcplugin_example_ldns_blocking.dll,--domains=C:\blacklisted-domains.txt The service should be restarted after the registry has been updated. Windows registry keys --------------------- Startup options can specified as subkeys from a registry key: `HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\dnscrypt-proxy\Parameters` By default, the service is named `dnscrypt-proxy`, but this can be changed with the `--service-name` command-line switch when installing the service. The following registry values are recognized: Registry Value | Type ----------------- | -------------- ConfigFile | REG_SZ ResolversList | REG_SZ ResolverName | REG_SZ LocalAddress | REG_SZ ProviderKey | REG_SZ ProviderName | REG_SZ ResolverAddress | REG_SZ EDNSPayloadSize | REG_DWORD MaxActiveRequests | REG_DWORD TCPOnly | REG_DWORD EphemeralKeys | REG_DWORD IgnoreTimestamps | REG_DWORD ClientKeyFile | REG_SZ LogFile | REG_SZ LogLevel | REG_DWORD Plugins | REG_MULTI_SZ Detail of registry values: ResolversList : Full path to the `dnscrypt-resolvers.csv` file. Equivalent to the `resolvers-list` parameter. ResolverName : Resolver name in the `dnscrypt-resolvers.csv` file. This is the first column (`Name`) in that CSV file. Equivalent to the `resolver-name` parameter. LocalAddress : IP address where `dnscrypt-proxy` listen for DNS request. Equivalent to the `local-address` parameter. ProviderKey : DNS server key. `Provider public key` column in the `dnscrypt-resolvers.csv` file. Equivalent to the `provider-key` parameter. ProviderName : DNS server name. `Provider name` column in the `dnscrypt-resolvers.csv` file. Equivalent to the `provider-name` parameter. ResolverAddress : DNS server IP. `Resolver address` column in the `dnscrypt-resolvers.csv` file. Equivalent to the `resolver-address` parameter. EDNSPayloadSize : EDNS size. Must be between `1` and `65507` (IPv4) or `65535` (IPv6-only). Equivalent to the `edns-payload-size` parameter. MaxActiveRequests : Maximum number of client DNS requests to process concurrently. Must be equal or greater than `1`. Equivalent to the `max-active-requests` parameter. TCPOnly : Send DNS queries to upstream servers using only TCP if set to `1`. Must be `1` or `0`. Equivalent to the `tcp-only` parameter. EphemeralKeys : Create a new key pair for every query. Must be `1` or `0`. Equivalent to the `ephemeral-keys` parameter. IgnoreTimestamps : Must be `1` or `0`. Equivalent to the `ignore-timestamps` parameter. Do not enable blindly. ClientKeyFile : Use a static key pair. This is the path to a file storing the secret key. Equivalent to the `client-key` parameter. LogFile : Log file for `dnscrypt-proxy`. Equivalent to the `logfile` parameter. LogLevel : Maximum log level. Equivalent to the `loglevel` parameter. Plugins : Set of plugins to be loaded by `dnscrypt-proxy`. Equivalent to one or more `plugin` command-line arguments. Plugins Example (INF): ```` HKLM,"SYSTEM\CurrentControlSet\services\dnscrypt-proxy\Parameters",0x10000,"C:\Program Files\DNSCrypt\libdcplugin_example_ldns_blocking.dll,--domains=C:\Program Files\DNSCrypt\Names.txt,--ips=C:\Program Files\DNSCrypt\IPs.txt,--logfile=C:\DNSCrypt-Block.log" ```` For example, in order to listen to a local address different from the default `127.0.0.1`, the key to put the custom IP address in is `HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\dnscrypt-proxy\Parameters\LocalAddress`. Unless `ConfigFile` is set, two entries are mandatory: - `ResolversList`: has to be set to the full path to the `dnscrypt-resolvers.csv` file. - `ResolverName`: has to be set to the resolver name to be used. See the `dnscrypt-resolvers.csv` file for a list of compatible public resolvers. These entries are automatically created/updated when installing the service. dnscrypt-proxy-1.9.4/README.markdown000644 000765 000024 00000003557 13040417271 016660 0ustar00jstaff000000 000000 [![Build Status](https://travis-ci.org/jedisct1/dnscrypt-proxy.png?branch=master)](https://travis-ci.org/jedisct1/dnscrypt-proxy?branch=master) [![DNSCrypt](https://raw.github.com/jedisct1/dnscrypt-proxy/master/dnscrypt-small.png)](https://dnscrypt.org) ============ DNSCrypt is a protocol for securing communications between a client and a DNS resolver, using high-speed high-security elliptic-curve cryptography. While not providing end-to-end security, it protects the local network, which is often the weakest point of the chain, against man-in-the-middle attacks. `dnscrypt-proxy` is a client-implementation of the protocol. It requires a [DNSCrypt server](https://www.dnscrypt.org/#dnscrypt-server) on the other end. Online documentation -------------------- * [dnscrypt-proxy documentation](https://github.com/jedisct1/dnscrypt-proxy/wiki/) * [dnscrypt website](https://dnscrypt.org). Download and integrity check ---------------------------- dnscrypt-proxy can be downloaded here: [dnscrypt-proxy download](https://download.dnscrypt.org/dnscrypt-proxy/). Signatures can be verified with [Minisign](https://jedisct1.github.io/minisign/): $ minisign -VP RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3 -m dnscrypt-proxy-1.9.4.tar.bz2 Plugins ------- Aside from implementing the protocol, dnscrypt-proxy can be extended with plug-ins, and gives a lot of control on the local DNS traffic: - Review the DNS traffic originating from your network in real time, and detect compromised hosts and applications phoning home. - Locally block ads, trackers, malware, spam, and any website whose domain names or IP addresses match a set of rules you define. - Prevent queries for local zones from being leaked. - Reduce latency by caching resposes and avoiding requesting IPv6 addresses on IPv4-only networks. - Force traffic to use TCP, to route it through TCP-only tunnels or Tor. dnscrypt-proxy-1.9.4/src/000755 000765 000024 00000000000 13040635352 014736 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/test/000755 000765 000024 00000000000 13040635353 015127 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/THANKS000644 000765 000024 00000001137 13037731714 015071 0ustar00jstaff000000 000000 Stuart Henderson - OpenBSD port D. J. Bernstein - for his feedback Lance Fredrickson - for his feedback on DD-WRT/mips Sebastian Sjoholm - reported and fixed a compilation issue on Debian PPC. David Lebel - Gentoo package Black Roland - OpenWRT packages RotBlitz - Reported that Windows binary packages should work on old CPUs. Marguerite Su - OpenSuSE packages InsanityBit - AppArmor profile Moffa~, Chef-Koch, Simon Levermann, Sergey Shatunov - Android scripts dnscrypt-proxy-1.9.4/test/dist-dirs000755 000765 000024 00000000162 13040635352 016755 0ustar00jstaff000000 000000 . ./features ./features/step_definitions ./features/support ./features/test-dnscrypt-proxy ./features/test-hostip dnscrypt-proxy-1.9.4/test/dist-files000755 000765 000024 00000001236 13040635353 017122 0ustar00jstaff000000 000000 ./dist-dirs ./dist-files ./features/step_definitions/dnscrypt-proxy.rb ./features/step_definitions/dnscrypt-server.rb ./features/support/env.rb ./features/test-dnscrypt-proxy/ephemeral_keys.feature ./features/test-dnscrypt-proxy/forced_tcp.feature ./features/test-dnscrypt-proxy/help.feature ./features/test-dnscrypt-proxy/plugins.feature ./features/test-dnscrypt-proxy/small_udp_query.feature ./features/test-dnscrypt-proxy/static_keys.feature ./features/test-dnscrypt-proxy/tcp_fallback.feature ./features/test-hostip/help.feature ./features/test-hostip/resolve-specific.feature ./features/test-hostip/resolve.feature ./Gemfile ./Gemfile.lock ./Makefile.in ./Rakefile dnscrypt-proxy-1.9.4/test/features/000755 000765 000024 00000000000 13040635352 016744 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/test/Gemfile000755 000765 000024 00000000107 13040635353 016423 0ustar00jstaff000000 000000 source 'https://rubygems.org' gem 'aruba' gem 'cucumber' gem 'net-dns' dnscrypt-proxy-1.9.4/test/Gemfile.lock000755 000765 000024 00000001525 13040635353 017357 0ustar00jstaff000000 000000 GEM remote: http://rubygems.org/ specs: aruba (0.8.1) childprocess (~> 0.5.6) contracts (~> 0.9) cucumber (>= 1.3.19) rspec-expectations (>= 2.99) builder (3.2.2) childprocess (0.5.6) ffi (~> 1.0, >= 1.0.11) contracts (0.10.1) cucumber (2.0.2) builder (>= 2.1.2) cucumber-core (~> 1.2.0) diff-lcs (>= 1.1.3) gherkin (~> 2.12) multi_json (>= 1.7.5, < 2.0) multi_test (>= 0.1.2) cucumber-core (1.2.0) gherkin (~> 2.12.0) diff-lcs (1.2.5) ffi (1.9.10) gherkin (2.12.2) multi_json (~> 1.3) multi_json (1.11.2) multi_test (0.1.2) net-dns (0.8.0) rspec-expectations (3.3.1) diff-lcs (>= 1.2.0, < 2.0) rspec-support (~> 3.3.0) rspec-support (3.3.0) PLATFORMS ruby DEPENDENCIES aruba cucumber net-dns dnscrypt-proxy-1.9.4/test/Makefile.in000755 000765 000024 00000001012 13040635353 017171 0ustar00jstaff000000 000000 all: test: rake cucumber clean: distclean: install: install-data: install-exec: uninstall: install-dvi: install-html: install-info: install-ps: install-pdf: installdirs: check: installcheck: mostlyclean: clean maintainer-clean: distclean distdir: while read dir ; do @MKDIR_P@ "$(distdir)/$$dir" ; done < dist-dirs while read file ; do @INSTALL@ "$$file" "$(distdir)/$$file" ; done < dist-files EMPTY_AUTOMAKE_TARGETS = dvi pdf ps info html tags ctags .PHONY: $(EMPTY_AUTOMAKE_TARGETS) $(EMPTY_AUTOMAKE_TARGETS): dnscrypt-proxy-1.9.4/test/Rakefile000755 000765 000024 00000000175 13040635353 016602 0ustar00jstaff000000 000000 require 'cucumber' require 'cucumber/rake/task' require 'rake/clean' Cucumber::Rake::Task.new task :default => [:cucumber] dnscrypt-proxy-1.9.4/test/features/step_definitions/000755 000765 000024 00000000000 13040635353 022313 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/test/features/support/000755 000765 000024 00000000000 13040635353 020461 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/000755 000765 000024 00000000000 13040635353 022747 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/test/features/test-hostip/000755 000765 000024 00000000000 13040635353 021230 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/test/features/test-hostip/help.feature000755 000765 000024 00000001517 13040635353 023544 0ustar00jstaff000000 000000 Feature: Show help and version for the hostip utility Display the help when the -h switch is given. Scenario: start with the -h switch. When I run `hostip -h` Then the output should contain: """ Usage: """ And the exit status should be 0 Scenario: start with the --help switch When I run `hostip --help` Then the output should contain: """ Usage: """ And the exit status should be 0 Scenario: start with a nonexistent switch When I run `hostip -%` Then the output should contain: """ Usage: """ And the exit status should be 1 Scenario: start the -V switch When I run `hostip -V` Then the output should contain: """ hostip """ And the output should not contain: """ Usage """ And the exit status should be 0 dnscrypt-proxy-1.9.4/test/features/test-hostip/resolve-specific.feature000755 000765 000024 00000002023 13040635353 026047 0ustar00jstaff000000 000000 Feature: See if hostip can resolve names given a specific resolver Resolve names with the hostip utility using Google DNS. Scenario: resolve test-ff.dnscrypt.org When I run `hostip -r 8.8.8.8 test-ff.dnscrypt.org` Then the output should contain exactly: """ 255.255.255.255 """ And the exit status should be 0 Scenario: resolve IPv6 address for test-ipv6.dnscrypt.org When I run `hostip -r 8.8.8.8 -6 test-ipv6.dnscrypt.org` Then the output should contain exactly: """ fe80::123:4567:89ab:cdef """ And the exit status should be 0 Scenario: resolve a nonexistent name When I run `hostip -r 8.8.8.8 nonexistent.local` Then the output should contain exactly: """ [name does not exist] """ And the exit status should be 1 Scenario: resolve a nonexistent IPv6 name When I run `hostip -r 8.8.8.8 -6 nonexistent.local` Then the output should contain exactly: """ [name does not exist] """ And the exit status should be 1 dnscrypt-proxy-1.9.4/test/features/test-hostip/resolve.feature000755 000765 000024 00000001674 13040635353 024277 0ustar00jstaff000000 000000 Feature: See if hostip can resolve names Resolve names with the hostip utility. Scenario: resolve test-ff.dnscrypt.org When I run `hostip test-ff.dnscrypt.org` Then the output should contain exactly: """ 255.255.255.255 """ And the exit status should be 0 Scenario: resolve IPv6 address for test-ipv6.dnscrypt.org When I run `hostip -6 test-ipv6.dnscrypt.org` Then the output should contain exactly: """ fe80::123:4567:89ab:cdef """ And the exit status should be 0 Scenario: resolve a nonexistent name When I run `hostip nonexistent.local` Then the output should contain exactly: """ [name does not exist] """ And the exit status should be 1 Scenario: resolve a nonexistent IPv6 name When I run `hostip -6 nonexistent.local` Then the output should contain exactly: """ [name does not exist] """ And the exit status should be 1 dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/ephemeral_keys.feature000755 000765 000024 00000001334 13040635353 027325 0ustar00jstaff000000 000000 Feature: Ephemeral keys Test if ephemeral keys are properly supported Scenario: query an existing name, with ephemeral keys Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=0 -R random --ephemeral-keys" When a client asks dnscrypt-proxy for "test-ff.dnscrypt.org" Then dnscrypt-proxy returns "255.255.255.255" Scenario: query a nonexistent name, with ephemeral keys Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=0 -R random --ephemeral-keys" When a client asks dnscrypt-proxy for "test-nonexistent.dnscrypt.org" Then dnscrypt-proxy returns a NXDOMAIN answer dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/forced_tcp.feature000755 000765 000024 00000001127 13040635353 026440 0ustar00jstaff000000 000000 Feature: check that --tcp-only works as advertised. A query sent using UDP should, when the proxy is running with --tcp-only, return a truncated reply so that the client retries using TCP. Scenario: query an existing name over UDP, and even though this name would fit in a 512-bytes UDP packet, expect a forced fallback to TCP. Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=4096 --tcp-only -R random" When a client asks dnscrypt-proxy for "test-ff.dnscrypt.org" Then dnscrypt-proxy returns "255.255.255.255" dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/help.feature000755 000765 000024 00000001573 13040635353 025265 0ustar00jstaff000000 000000 Feature: Show help and version for dnscrypt-proxy Display the help when the -h switch is given. Scenario: start with the -h switch. When I run `dnscrypt-proxy -h` Then the output should contain: """ Options: """ And the exit status should be 0 Scenario: start with the --help switch When I run `dnscrypt-proxy --help` Then the output should contain: """ Options: """ And the exit status should be 0 Scenario: start with a nonexistent switch When I run `dnscrypt-proxy -%` Then the output should contain: """ Options: """ And the exit status should be 1 Scenario: start the -V switch When I run `dnscrypt-proxy -V` Then the output should contain: """ dnscrypt-proxy """ And the output should not contain: """ Options """ And the exit status should be 0 dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/plugins.feature000755 000765 000024 00000001166 13040635353 026014 0ustar00jstaff000000 000000 Feature: Plugins Start the proxy with plugins Scenario: start the proxy with the no-op plugin When I run `dnscrypt-proxy --test=0 -R random --plugin=libdcplugin_example.la` Then the output should contain: """ A sample (useless) plugin for dnscrypt-proxy """ And the exit status should be 0 Scenario: start the proxy with the ldns_aaaa_blocking plugin When I run `dnscrypt-proxy --test=0 -R random --plugin=libdcplugin_example_ldns_aaaa_blocking.la` Then the output should contain: """ Directly return an empty response to AAAA queries """ And the exit status should be 0 dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/small_udp_query.feature000755 000765 000024 00000001216 13040635353 027534 0ustar00jstaff000000 000000 Feature: Small UDP query A query that fits in a small UDP packet. Scenario: query an existing name. Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=0 -R random" When a client asks dnscrypt-proxy for "test-ff.dnscrypt.org" Then dnscrypt-proxy returns "255.255.255.255" Scenario: query a nonexistent name. Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=0 -R random" When a client asks dnscrypt-proxy for "test-nonexistent.dnscrypt.org" Then dnscrypt-proxy returns a NXDOMAIN answer dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/static_keys.feature000755 000765 000024 00000002313 13040635353 026650 0ustar00jstaff000000 000000 Feature: Static client keys Use static client keys Scenario: start the daemon with both ephemeral and static keys When I run `dnscrypt-proxy -R random --client-key=test-client.key --ephemeral-keys` Then the output should contain: """ ERROR """ And the exit status should be 1 Scenario: start the daemon with a nonexistent static key kfile When I run `dnscrypt-proxy -R random --client-key=/nonexistent` Then the output should contain: """ ERROR """ And the exit status should be 1 Scenario: query an existing name, with a static client key Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=0 -R random --client-key=test-client.key" When a client asks dnscrypt-proxy for "test-ff.dnscrypt.org" Then dnscrypt-proxy returns "255.255.255.255" Scenario: query a nonexistent name, with a static client key Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=0 -R random --client-key=test-client.key" When a client asks dnscrypt-proxy for "test-nonexistent.dnscrypt.org" Then dnscrypt-proxy returns a NXDOMAIN answer dnscrypt-proxy-1.9.4/test/features/test-dnscrypt-proxy/tcp_fallback.feature000755 000765 000024 00000001015 13040635353 026731 0ustar00jstaff000000 000000 Feature: fallback to TCP A query that doesn't fit in a small UDP packet should make the proxy send a truncated reply, then the stub resolver should retry with TCP and the proxy should handle TCP just fine. Scenario: query an existing name over UDP, expect fallback to TCP. Given a working server proxy on 212.47.228.136 And a running dnscrypt proxy with options "--edns-payload-size=0 -R random" When a client asks dnscrypt-proxy for "test-tcp.dnscrypt.org" Then dnscrypt-proxy returns "127.0.0.1" dnscrypt-proxy-1.9.4/test/features/support/env.rb000755 000765 000024 00000000255 13040635353 021603 0ustar00jstaff000000 000000 require 'aruba/cucumber' require 'net/dns' ENV['PATH'] = "#{File.expand_path(File.dirname(__FILE__) + '/../../../src/dnscrypt-proxy')}#{File::PATH_SEPARATOR}#{ENV['PATH']}" dnscrypt-proxy-1.9.4/test/features/step_definitions/dnscrypt-proxy.rb000755 000765 000024 00000001560 13040635353 025672 0ustar00jstaff000000 000000 require 'net/dns/resolver' PROXY_IP = '127.0.0.1' PROXY_PORT = 5300 Before do @resolver = Net::DNS::Resolver.new(nameserver: PROXY_IP, port: PROXY_PORT) end After do Process.kill("KILL", @pipe.pid) if @pipe @pipe = nil end Around do |scenario, block| Timeout.timeout(3.0) do block.call end end Given /^a running dnscrypt proxy with options "([^"]*)"$/ do |options| @pipe = IO.popen("dnscrypt-proxy " + "--local-address=#{PROXY_IP}:#{PROXY_PORT} $#{options}", "r") sleep(1.5) end When /^a client asks dnscrypt\-proxy for "([^"]*)"$/ do |name| @answer_section = @resolver.query(name, Net::DNS::A).answer end Then /^dnscrypt\-proxy returns "([^"]*)"$/ do |ip_for_name| expect(@answer_section.collect { |a| a.address.to_s }).to include(ip_for_name) end Then /^dnscrypt\-proxy returns a NXDOMAIN answer$/ do expect(@answer_section).to be_empty end dnscrypt-proxy-1.9.4/test/features/step_definitions/dnscrypt-server.rb000755 000765 000024 00000000464 13040635353 026021 0ustar00jstaff000000 000000 require 'net/dns/resolver' Given /^a working server proxy on (\d+\.\d+\.\d+\.\d+)$/ do |resolver| resolver = Net::DNS::Resolver.new(nameserver: resolver, port: 443) answer_section = resolver.query('2.dnscrypt-cert.fr.dnscrypt.org', Net::DNS::TXT).answer expect(answer_section).not_to be_empty end dnscrypt-proxy-1.9.4/src/ext/000755 000765 000024 00000000000 13040635351 015535 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/hostip/000755 000765 000024 00000000000 13040635352 016244 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/include/000755 000765 000024 00000000000 13040635352 016361 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/libevent-modified/000755 000765 000024 00000000000 13040635351 020323 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/Makefile.am000644 000765 000024 00000000155 13037731714 017000 0ustar00jstaff000000 000000 SUBDIRS = \ ext \ libevent-modified \ proxy \ hostip if PLUGINS SUBDIRS += \ include \ plugins endif dnscrypt-proxy-1.9.4/src/Makefile.in000644 000765 000024 00000046177 13040635303 017016 0ustar00jstaff000000 000000 # Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; 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static volatile sig_atomic_t skip_dispatch; static int sockaddr_from_ip_and_port(struct sockaddr_storage * const sockaddr, ev_socklen_t * const sockaddr_len_p, const char * const ip, const char * const port, const char * const error_msg) { char sockaddr_port[INET6_ADDRSTRLEN + sizeof "[]:65535"]; int sockaddr_len_int; char *pnt; _Bool has_column = 0; _Bool has_columns = 0; _Bool has_brackets = *ip == '['; if ((pnt = strchr(ip, ':')) != NULL) { has_column = 1; if (strchr(pnt + 1, ':') != NULL) { has_columns = 1; } } sockaddr_len_int = (int) sizeof *sockaddr; if ((has_brackets != 0 || has_column != has_columns) && evutil_parse_sockaddr_port(ip, (struct sockaddr *) sockaddr, &sockaddr_len_int) == 0) { *sockaddr_len_p = (ev_socklen_t) sockaddr_len_int; return 0; } if (has_columns != 0 && has_brackets == 0) { evutil_snprintf(sockaddr_port, sizeof sockaddr_port, "[%s]:%s", ip, port); } else { evutil_snprintf(sockaddr_port, sizeof sockaddr_port, "%s:%s", ip, port); } sockaddr_len_int = (int) sizeof *sockaddr; if (evutil_parse_sockaddr_port(sockaddr_port, (struct sockaddr *) sockaddr, &sockaddr_len_int) != 0) { logger(NULL, LOG_ERR, "%s: %s", error_msg, sockaddr_port); *sockaddr_len_p = (ev_socklen_t) 0U; return -1; } *sockaddr_len_p = (ev_socklen_t) sockaddr_len_int; return 0; } static int proxy_context_init(ProxyContext * const proxy_context, int *argc_p, char ***argv_p) { memset(proxy_context, 0, sizeof *proxy_context); proxy_context->event_loop = NULL; proxy_context->log_file = NULL; proxy_context->max_log_level = LOG_INFO; proxy_context->tcp_accept_timer = NULL; proxy_context->tcp_conn_listener = NULL; proxy_context->udp_current_max_size = DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND; proxy_context->udp_max_size = (size_t) DNS_DEFAULT_EDNS_PAYLOAD_SIZE; proxy_context->udp_listener_event = NULL; proxy_context->udp_proxy_resolver_event = NULL; proxy_context->udp_proxy_resolver_handle = -1; proxy_context->udp_listener_handle = -1; proxy_context->tcp_listener_handle = -1; sodium_mlock(&proxy_context->dnscrypt_client, sizeof proxy_context->dnscrypt_client); if (options_parse(&app_context, proxy_context, argc_p, argv_p) != 0) { return -1; } #ifdef _WIN32 WSADATA wsa_data; WSAStartup(MAKEWORD(2, 2), &wsa_data); #endif if ((proxy_context->event_loop = event_base_new()) == NULL) { logger(NULL, LOG_ERR, "Unable to initialize the event loop"); return -1; } if (sockaddr_from_ip_and_port(&proxy_context->resolver_sockaddr, &proxy_context->resolver_sockaddr_len, proxy_context->resolver_ip, DNS_DEFAULT_RESOLVER_PORT, "Unsupported resolver address") != 0) { return -1; } if (sockaddr_from_ip_and_port(&proxy_context->local_sockaddr, &proxy_context->local_sockaddr_len, proxy_context->local_ip, DNS_DEFAULT_LOCAL_PORT, "Unsupported local address") != 0) { return -1; } return 0; } static void proxy_context_free(ProxyContext * const proxy_context) { if (proxy_context == NULL) { return; } options_free(proxy_context); logger_close(proxy_context); } static int init_locale(void) { setlocale(LC_CTYPE, "C"); setlocale(LC_COLLATE, "C"); return 0; } static int init_tz(void) { static char default_tz_for_putenv[] = "TZ=UTC+00:00"; char stbuf[10U]; struct tm *tm; time_t now; tzset(); time(&now); if ((tm = localtime(&now)) != NULL && strftime(stbuf, sizeof stbuf, "%z", tm) == (size_t) 5U) { evutil_snprintf(default_tz_for_putenv, sizeof default_tz_for_putenv, "TZ=UTC%c%c%c:%c%c", (*stbuf == '-' ? '+' : '-'), stbuf[1], stbuf[2], stbuf[3], stbuf[4]); } putenv(default_tz_for_putenv); (void) localtime(&now); (void) gmtime(&now); return 0; } static void revoke_privileges(ProxyContext * const proxy_context) { (void) proxy_context; init_locale(); init_tz(); (void) strerror(ENOENT); #ifndef DEBUG randombytes_stir(); # ifndef _WIN32 if (proxy_context->user_dir != NULL) { if (chdir(proxy_context->user_dir) != 0 || chroot(proxy_context->user_dir) != 0 || chdir("/") != 0) { logger(proxy_context, LOG_ERR, "Unable to chroot to [%s]", proxy_context->user_dir); exit(1); } } if (sandboxes_app() != 0) { logger_noformat(proxy_context, LOG_ERR, "Unable to sandbox the main process"); exit(1); } if (proxy_context->user_id != (uid_t) 0) { # ifdef HAVE_INITGROUPS if (initgroups(proxy_context->user_name, proxy_context->user_group) != 0) { logger(proxy_context, LOG_ERR, "Unable to initialize groups for user [%s]", proxy_context->user_name); exit(1); } # endif if (setgid(proxy_context->user_group) != 0 || setegid(proxy_context->user_group) != 0 || setuid(proxy_context->user_id) != 0 || seteuid(proxy_context->user_id) != 0) { logger(proxy_context, LOG_ERR, "Unable to switch to user id [%lu]", (unsigned long) proxy_context->user_id); exit(1); } } # endif #endif } int dnscrypt_proxy_start_listeners(ProxyContext * const proxy_context) { char local_addr_s[INET6_ADDRSTRLEN + sizeof "[]:65535"]; char resolver_addr_s[INET6_ADDRSTRLEN + sizeof "[]:65535"]; if (proxy_context->listeners_started != 0) { return 0; } if (udp_listener_start(proxy_context) != 0 || tcp_listener_start(proxy_context) != 0) { exit(1); } evutil_format_sockaddr_port((const struct sockaddr *) &proxy_context->local_sockaddr, local_addr_s, sizeof local_addr_s); evutil_format_sockaddr_port((const struct sockaddr *) &proxy_context->resolver_sockaddr, resolver_addr_s, sizeof resolver_addr_s); logger(proxy_context, LOG_NOTICE, "Proxying from %s to %s", local_addr_s, resolver_addr_s); proxy_context->listeners_started = 1; systemd_notify(proxy_context, "READY=1"); return 0; } int dnscrypt_proxy_loop_break(void) { if (app_context.proxy_context != NULL && app_context.proxy_context->event_loop != NULL) { event_base_loopbreak(app_context.proxy_context->event_loop); } else { skip_dispatch = 1; } return 0; } #ifdef HAVE_LIBSYSTEMD static int init_descriptors_from_systemd(ProxyContext * const proxy_context) { int num_sd_fds; int sock; num_sd_fds = sd_listen_fds(0); if (num_sd_fds == 0) { return 0; } if (num_sd_fds != 2) { logger(proxy_context, LOG_ERR, "Wrong number of systemd sockets: %d - " "should be 2", num_sd_fds); return -1; } assert(num_sd_fds <= INT_MAX - SD_LISTEN_FDS_START); for (sock = SD_LISTEN_FDS_START; sock < SD_LISTEN_FDS_START + num_sd_fds; sock++) { if (sd_is_socket(sock, AF_INET, SOCK_DGRAM, 0) > 0 || sd_is_socket(sock, AF_INET6, SOCK_DGRAM, 0) > 0) { proxy_context->udp_listener_handle = sock; } if (sd_is_socket(sock, AF_INET, SOCK_STREAM, 1) > 0 || sd_is_socket(sock, AF_INET6, SOCK_STREAM, 1) > 0) { proxy_context->tcp_listener_handle = sock; } } if (proxy_context->udp_listener_handle < 0) { logger_noformat(proxy_context, LOG_ERR, "No systemd UDP socket passed in"); return -1; } if (proxy_context->tcp_listener_handle < 0) { logger_noformat(proxy_context, LOG_ERR, "No systemd TCP socket passed in"); return -1; } if (getsockname(proxy_context->udp_listener_handle, (struct sockaddr *) &proxy_context->local_sockaddr, &proxy_context->local_sockaddr_len) != 0) { logger_noformat(proxy_context, LOG_ERR, "Unable to get the local systemd UDP socket address"); return -1; } return 0; } #endif static void sigterm_cb(evutil_socket_t sig, short events, void *fodder) { (void) events; (void) fodder; (void) sig; dnscrypt_proxy_loop_break(); } #ifdef SIGHUP static void sighup_cb(evutil_socket_t sig, short events, void *fodder) { (void) events; (void) fodder; (void) sig; # ifdef PLUGINS (void) plugin_support_context_reload(app_context.dcps_context); # endif } #endif static void entropy_check(void) { #if defined(__linux__) && defined(HAVE_LINUX_RANDOM_H) && defined(RNDGETENTCNT) int fd; int c; if ((fd = open("/dev/random", O_RDONLY)) != -1) { if (ioctl(fd, RNDGETENTCNT, &c) == 0 && c < 160) { logger(NULL, LOG_WARNING, "This system doesn't provide enough entropy to quickly generate high-quality random numbers"); logger(NULL, LOG_WARNING, "Installing the rng-utils/rng-tools or haveged packages may help."); logger(NULL, LOG_WARNING, "On virtualized Linux environments, also consider using virtio-rng."); logger(NULL, LOG_WARNING, "The service will not start until enough entropy has been collected."); } close(fd); } #endif } int dnscrypt_proxy_main(int argc, char *argv[]) { ProxyContext proxy_context; struct event *sigint_event; struct event *sigterm_event; #ifdef SIGHUP struct event *sighup_event; #endif setvbuf(stdout, NULL, _IOLBF, BUFSIZ); stack_trace_on_crash(); entropy_check(); if (sodium_init() != 0) { exit(1); } app_context.allocated_args = 0; #ifdef PLUGINS if ((app_context.dcps_context = plugin_support_context_new()) == NULL) { logger_noformat(NULL, LOG_ERR, "Unable to setup plugin support"); exit(2); } #endif if (proxy_context_init(&proxy_context, &argc, &argv) != 0) { logger_noformat(NULL, LOG_ERR, "Unable to start the proxy"); exit(1); } logger_noformat(&proxy_context, LOG_NOTICE, "Starting " PACKAGE_STRING); sodium_mlock(&proxy_context, sizeof proxy_context); randombytes_set_implementation(&randombytes_salsa20_implementation); #ifdef PLUGINS if (plugin_support_context_load(app_context.dcps_context) != 0) { logger_noformat(NULL, LOG_ERR, "Unable to load plugins"); exit(2); } #endif app_context.proxy_context = &proxy_context; proxy_context.dnscrypt_client.ephemeral_keys = proxy_context.ephemeral_keys; if (proxy_context.dnscrypt_client.ephemeral_keys != 0) { logger_noformat(&proxy_context, LOG_INFO, "Ephemeral keys enabled - generating a new seed"); dnscrypt_client_init_with_new_session_key(&proxy_context.dnscrypt_client); } else if (proxy_context.client_key_file != NULL) { logger_noformat(&proxy_context, LOG_INFO, "Using a user-supplied client secret key"); dnscrypt_client_init_with_client_key(&proxy_context.dnscrypt_client); } else { logger_noformat(&proxy_context, LOG_INFO, "Generating a new session key pair"); dnscrypt_client_init_with_new_key_pair(&proxy_context.dnscrypt_client); } logger_noformat(&proxy_context, LOG_INFO, "Done"); if (cert_updater_init(&proxy_context) != 0) { exit(1); } #ifdef HAVE_LIBSYSTEMD if (init_descriptors_from_systemd(&proxy_context) != 0) { exit(1); } #endif if (proxy_context.test_only == 0 && (udp_listener_bind(&proxy_context) != 0 || tcp_listener_bind(&proxy_context) != 0)) { exit(1); } #ifdef SIGPIPE signal(SIGPIPE, SIG_IGN); #endif revoke_privileges(&proxy_context); if (cert_updater_start(&proxy_context) != 0) { exit(1); } sigint_event = evsignal_new(proxy_context.event_loop, SIGINT, sigterm_cb, &proxy_context); sigterm_event = evsignal_new(proxy_context.event_loop, SIGTERM, sigterm_cb, &proxy_context); if (sigint_event == NULL || event_add(sigint_event, NULL) != 0 || sigterm_event == NULL || event_add(sigterm_event, NULL) != 0) { exit(1); } #ifdef SIGHUP sighup_event = evsignal_new(proxy_context.event_loop, SIGHUP, sighup_cb, &proxy_context); if (sighup_event == NULL || event_add(sighup_event, NULL) != 0) { exit(1); } #endif #ifdef HAVE_LIBSYSTEMD sd_notifyf(0, "MAINPID=%lu", (unsigned long) getpid()); #endif if (skip_dispatch == 0) { event_base_dispatch(proxy_context.event_loop); } logger_noformat(&proxy_context, LOG_NOTICE, "Stopping proxy"); systemd_notify(0, "STOPPING=1"); cert_updater_free(&proxy_context); udp_listener_stop(&proxy_context); tcp_listener_stop(&proxy_context); event_free(sigint_event); event_free(sigterm_event); #ifdef SIGHUP event_free(sighup_event); #endif event_base_free(proxy_context.event_loop); #ifdef PLUGINS plugin_support_context_free(app_context.dcps_context); #endif proxy_context_free(&proxy_context); sodium_munlock(&proxy_context, sizeof proxy_context); app_context.proxy_context = NULL; randombytes_close(); if (app_context.allocated_args != 0) { sc_argv_free(argc, argv); } return 0; } dnscrypt-proxy-1.9.4/src/proxy/app.h000644 000765 000024 00000000703 13037731714 017055 0ustar00jstaff000000 000000 #ifndef __APP_H__ #define __APP_H__ 1 #include #ifdef PLUGINS # include "plugin_support.h" #endif #ifdef NDEBUG # error Assertions should be turned on. Always. #endif typedef struct AppContext_ { struct ProxyContext_ *proxy_context; #ifdef PLUGINS DCPluginSupportContext *dcps_context; #endif _Bool allocated_args; } AppContext; int dnscrypt_proxy_main(int argc, char *argv[]); int dnscrypt_proxy_loop_break(void); #endif dnscrypt-proxy-1.9.4/src/proxy/cert.c000644 000765 000024 00000045210 13037731714 017227 0ustar00jstaff000000 000000 #include #include #ifdef _WIN32 # include #else # include # include #endif #include #include #include #include #include #include #include #include #include #include "cert.h" #include "cert_p.h" #include "dnscrypt_proxy.h" #include "logger.h" #include "probes.h" #include "shims.h" #include "utils.h" static int cert_updater_update(ProxyContext * const proxy_context); static int cert_parse_version(ProxyContext * const proxy_context, const SignedBincert * const signed_bincert, const size_t signed_bincert_len) { if (signed_bincert_len < (size_t) (signed_bincert->signed_data - signed_bincert->magic_cert) || memcmp(signed_bincert->magic_cert, CERT_MAGIC_CERT, sizeof signed_bincert->magic_cert) != 0) { logger_noformat(proxy_context, LOG_DEBUG, "TXT record with no certificates received"); return -1; } if (signed_bincert->version_major[0] != 0U || (signed_bincert->version_major[1] != 1U #ifdef HAVE_XCHACHA20 && signed_bincert->version_major[1] != 2U #endif )) { logger(proxy_context, LOG_INFO, "Unsupported certificate version: %u.%u", signed_bincert->version_major[1], signed_bincert->version_major[0]); return -1; } return 0; } static int cert_parse_bincert(ProxyContext * const proxy_context, const Bincert * const bincert, const Bincert * const previous_bincert) { uint32_t serial; memcpy(&serial, bincert->serial, sizeof serial); serial = htonl(serial); if (serial >= 0x30303030 && serial <= 0x30303039) { logger(proxy_context, LOG_INFO, "Server certificate with serial '%c%c%c%c' received", (serial >> 24) & 0xff, (serial >> 16) & 0xff, (serial >> 8) & 0xff, serial & 0xff); } else { logger(proxy_context, LOG_INFO, "Server certificate with serial #%" PRIu32 " received", serial); } uint32_t ts_begin; memcpy(&ts_begin, bincert->ts_begin, sizeof ts_begin); ts_begin = htonl(ts_begin); uint32_t ts_end; memcpy(&ts_end, bincert->ts_end, sizeof ts_end); ts_end = htonl(ts_end); if (ts_end <= ts_begin) { logger_noformat(proxy_context, LOG_WARNING, "This certificate has a bogus validity period"); return -1; } const uint32_t now_u32 = (uint32_t) time(NULL); if (now_u32 < ts_begin) { if (proxy_context->ignore_timestamps != 0) { logger_noformat(proxy_context, LOG_WARNING, "Clock might be off - " "Pretending that this certificate is valid no matter what"); } else { logger_noformat(proxy_context, LOG_INFO, "This certificate has not been activated yet"); return -1; } } if (now_u32 > ts_end) { logger_noformat(proxy_context, LOG_INFO, "This certificate has expired"); return -1; } logger_noformat(proxy_context, LOG_INFO, "This certificate is valid"); if (previous_bincert == NULL) { return 0; } const uint32_t version = (((uint32_t) bincert->version_major[0]) << 24) + (((uint32_t) bincert->version_major[1]) << 16) + (((uint32_t) bincert->version_minor[0]) << 8) + (((uint32_t) bincert->version_minor[1])); const uint32_t previous_version = (((uint32_t) previous_bincert->version_major[0]) << 24) + (((uint32_t) previous_bincert->version_major[1]) << 16) + (((uint32_t) previous_bincert->version_minor[0]) << 8) + (((uint32_t) previous_bincert->version_minor[1])); uint32_t previous_serial; memcpy(&previous_serial, previous_bincert->serial, sizeof previous_serial); previous_serial = htonl(previous_serial); if (previous_version > version) { logger(proxy_context, LOG_INFO, "Keeping certificate #%" PRIu32 " " "which is for a more recent version than #%" PRIu32, previous_serial, serial); return -1; } else if (previous_version < version) { logger(proxy_context, LOG_INFO, "Favoring version #%" PRIu32 " over version #%" PRIu32, version, previous_version); return 0; } if (previous_serial > serial) { logger(proxy_context, LOG_INFO, "Certificate #%" PRIu32 " " "has been superseded by certificate #%" PRIu32, previous_serial, serial); return -1; } logger(proxy_context, LOG_INFO, "This certificate supersedes certificate #%" PRIu32, previous_serial); return 0; } static int cert_open_bincert(ProxyContext * const proxy_context, const SignedBincert * const signed_bincert, const size_t signed_bincert_len, Bincert ** const bincert_p) { Bincert *bincert; unsigned long long bincert_data_len_ul; size_t bincert_size; size_t signed_data_len; if (cert_parse_version(proxy_context, signed_bincert, signed_bincert_len) != 0) { DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_COMMUNICATION(); return -1; } bincert_size = signed_bincert_len; if ((bincert = malloc(bincert_size)) == NULL) { DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_COMMUNICATION(); return -1; } assert(signed_bincert_len > (size_t) (signed_bincert->signed_data - signed_bincert->magic_cert)); signed_data_len = signed_bincert_len - (size_t) (signed_bincert->signed_data - signed_bincert->magic_cert); assert(bincert_size - (size_t) (bincert->server_publickey - bincert->magic_cert) == signed_data_len); memcpy(bincert, signed_bincert, signed_bincert_len - signed_data_len); if (crypto_sign_ed25519_open(bincert->server_publickey, &bincert_data_len_ul, signed_bincert->signed_data, signed_data_len, proxy_context->provider_publickey) != 0) { free(bincert); logger_noformat(proxy_context, LOG_ERR, "Suspicious certificate received"); DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_SECURITY(); return -1; } if (cert_parse_bincert(proxy_context, bincert, *bincert_p) != 0) { sodium_memzero(bincert, sizeof *bincert); free(bincert); return -1; } if (*bincert_p != NULL) { sodium_memzero(*bincert_p, sizeof **bincert_p); free(*bincert_p); } *bincert_p = bincert; return 0; } static void cert_print_bincert_info(ProxyContext * const proxy_context, const Bincert * const bincert) { #ifdef HAVE_GMTIME_R struct tm ts_begin_tm; struct tm ts_end_tm; time_t ts_begin_t; time_t ts_end_t; uint32_t serial; uint32_t ts_begin; uint32_t ts_end; _Bool gm_ret; assert(bincert != NULL); memcpy(&ts_begin, bincert->ts_begin, sizeof ts_begin); ts_begin_t = (time_t) htonl(ts_begin); assert(ts_begin_t > (time_t) 0); memcpy(&ts_end, bincert->ts_end, sizeof ts_end); ts_end_t = (time_t) htonl(ts_end); assert(ts_end_t > (time_t) 0); gm_ret = (gmtime_r(&ts_begin_t, &ts_begin_tm) != NULL && gmtime_r(&ts_end_t, &ts_end_tm) != NULL); assert(gm_ret != 0); assert(ts_end_t >= ts_begin_t); memcpy(&serial, bincert->serial, sizeof serial); logger(proxy_context, LOG_INFO, "Chosen certificate #%" PRIu32 " is valid " "from [%d-%02d-%02d] to [%d-%02d-%02d]", htonl(serial), ts_begin_tm.tm_year + 1900, ts_begin_tm.tm_mon + 1, ts_begin_tm.tm_mday, ts_end_tm.tm_year + 1900, ts_end_tm.tm_mon + 1, ts_end_tm.tm_mday); #endif if (bincert->version_major[1] > 1U) { const unsigned int version_minor = bincert->version_minor[0] * 256 + bincert->version_minor[1]; logger(proxy_context, LOG_INFO, "Using version %u.%u of the DNSCrypt protocol", bincert->version_major[1], version_minor); } } static void cert_print_server_key(ProxyContext * const proxy_context) { char fingerprint[80U]; dnscrypt_key_to_fingerprint(fingerprint, proxy_context->resolver_publickey); logger(proxy_context, LOG_INFO, "Server key fingerprint is %s", fingerprint); } static void cert_timer_cb(evutil_socket_t handle, const short event, void * const proxy_context_) { ProxyContext * const proxy_context = proxy_context_; (void) handle; (void) event; logger_noformat(proxy_context, LOG_INFO, "Refetching server certificates"); cert_updater_update(proxy_context); } static void cert_reschedule_query(ProxyContext * const proxy_context, const time_t query_retry_delay) { CertUpdater *cert_updater = &proxy_context->cert_updater; if (evtimer_pending(cert_updater->cert_timer, NULL)) { return; } const struct timeval tv = { .tv_sec = query_retry_delay, .tv_usec = 0 }; evtimer_add(cert_updater->cert_timer, &tv); } static void cert_reschedule_query_after_failure(ProxyContext * const proxy_context) { CertUpdater *cert_updater = &proxy_context->cert_updater; time_t query_retry_delay; if (evtimer_pending(cert_updater->cert_timer, NULL)) { return; } query_retry_delay = (time_t) (CERT_QUERY_RETRY_MIN_DELAY + (time_t) cert_updater->query_retry_step * (CERT_QUERY_RETRY_MAX_DELAY - CERT_QUERY_RETRY_MIN_DELAY) / CERT_QUERY_RETRY_STEPS); if (cert_updater->query_retry_step < CERT_QUERY_RETRY_STEPS) { cert_updater->query_retry_step++; } cert_reschedule_query(proxy_context, query_retry_delay); DNSCRYPT_PROXY_CERTS_UPDATE_RETRY(); if (proxy_context->test_only != 0 && cert_updater->query_retry_step > CERT_QUERY_TEST_RETRY_STEPS) { exit(DNSCRYPT_EXIT_CERT_TIMEOUT); } } static void cert_reschedule_query_after_success(ProxyContext * const proxy_context) { if (evtimer_pending(proxy_context->cert_updater.cert_timer, NULL)) { return; } cert_reschedule_query(proxy_context, (time_t) CERT_QUERY_RETRY_DELAY_AFTER_SUCCESS_MIN_DELAY + (time_t) randombytes_uniform (CERT_QUERY_RETRY_DELAY_AFTER_SUCCESS_JITTER)); } static void cert_check_key_rotation_period(ProxyContext * const proxy_context, const Bincert * const bincert) { uint32_t ts_begin; uint32_t ts_end; memcpy(&ts_begin, bincert->ts_begin, sizeof ts_begin); ts_begin = htonl(ts_begin); memcpy(&ts_end, bincert->ts_end, sizeof ts_end); ts_end = htonl(ts_end); assert(ts_end > ts_begin); if (ts_end - ts_begin > CERT_RECOMMENDED_MAX_KEY_ROTATION_PERIOD) { logger_noformat(proxy_context, LOG_INFO, "The key rotation period for this server may exceed the recommended value. " "This is bad for forward secrecy."); } } static void cert_query_cb(int result, char type, int count, int ttl, void * const txt_records_, void * const arg) { Bincert *bincert = NULL; ProxyContext *proxy_context = arg; const struct txt_record *txt_records = txt_records_; Cipher cipher = CIPHER_UNDEFINED; int i = 0; (void) type; (void) ttl; DNSCRYPT_PROXY_CERTS_UPDATE_RECEIVED(); evdns_base_free(proxy_context->cert_updater.evdns_base, 0); proxy_context->cert_updater.evdns_base = NULL; if (result != DNS_ERR_NONE) { logger_noformat(proxy_context, LOG_ERR, "Unable to retrieve server certificates"); cert_reschedule_query_after_failure(proxy_context); DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_COMMUNICATION(); return; } assert(count >= 0); while (i < count) { cert_open_bincert(proxy_context, (const SignedBincert *) txt_records[i].txt, txt_records[i].len, &bincert); i++; } if (bincert == NULL) { logger_noformat(proxy_context, LOG_ERR, "No useable certificates found"); DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_NOCERTS(); if (proxy_context->test_only) { exit(DNSCRYPT_EXIT_CERT_NOCERTS); } cert_reschedule_query_after_failure(proxy_context); return; } switch (bincert->version_major[1]) { case 1: cipher = CIPHER_XSALSA20POLY1305; break; #ifdef HAVE_XCHACHA20 case 2: cipher = CIPHER_XCHACHA20POLY1305; break; #endif default: logger_noformat(proxy_context, LOG_ERR, "Unsupported certificate version"); cert_reschedule_query_after_failure(proxy_context); return; } if (proxy_context->test_only != 0) { const uint32_t now_u32 = (uint32_t) time(NULL); uint32_t ts_begin; uint32_t ts_end; uint32_t safe_end; memcpy(&ts_begin, bincert->ts_begin, sizeof ts_begin); ts_begin = htonl(ts_begin); memcpy(&ts_end, bincert->ts_end, sizeof ts_end); safe_end = ts_end = htonl(ts_end); if (safe_end > (uint32_t) proxy_context->test_cert_margin) { safe_end -= (uint32_t) proxy_context->test_cert_margin; } else { safe_end = ts_begin; } if (safe_end < ts_begin) { logger_noformat(proxy_context, LOG_WARNING, "Safety margin wider than the certificate validity period"); safe_end = ts_begin; } if (now_u32 < ts_begin || now_u32 > safe_end) { logger(proxy_context, LOG_WARNING, "The certificate is not valid for the given safety margin (%lu-%lu not within [%lu..%lu])", (unsigned long) now_u32, (unsigned long) proxy_context->test_cert_margin, (unsigned long) ts_begin, (unsigned long) safe_end); DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_NOCERTS(); exit(DNSCRYPT_EXIT_CERT_MARGIN); } } COMPILER_ASSERT(sizeof proxy_context->resolver_publickey == sizeof bincert->server_publickey); memcpy(proxy_context->resolver_publickey, bincert->server_publickey, sizeof proxy_context->resolver_publickey); COMPILER_ASSERT(sizeof proxy_context->dnscrypt_magic_query == sizeof bincert->magic_query); memcpy(proxy_context->dnscrypt_magic_query, bincert->magic_query, sizeof proxy_context->dnscrypt_magic_query); cert_print_bincert_info(proxy_context, bincert); cert_check_key_rotation_period(proxy_context, bincert); cert_print_server_key(proxy_context); dnscrypt_client_init_magic_query(&proxy_context->dnscrypt_client, bincert->magic_query, cipher); sodium_memzero(bincert, sizeof *bincert); free(bincert); if (proxy_context->test_only) { DNSCRYPT_PROXY_CERTS_UPDATE_DONE((unsigned char *) proxy_context->resolver_publickey); exit(0); } if (dnscrypt_client_init_resolver_publickey (&proxy_context->dnscrypt_client, proxy_context->resolver_publickey) != 0) { logger_noformat(proxy_context, LOG_ERR, "Suspicious public key"); exit(DNSCRYPT_EXIT_CERT_NOCERTS); } dnscrypt_proxy_start_listeners(proxy_context); proxy_context->cert_updater.query_retry_step = 0U; cert_reschedule_query_after_success(proxy_context); DNSCRYPT_PROXY_CERTS_UPDATE_DONE((unsigned char *) proxy_context->resolver_publickey); } int cert_updater_init(ProxyContext * const proxy_context) { CertUpdater *cert_updater = &proxy_context->cert_updater; memset(cert_updater, 0, sizeof *cert_updater); assert(proxy_context->event_loop != NULL); assert(cert_updater->cert_timer == NULL); if ((cert_updater->cert_timer = evtimer_new(proxy_context->event_loop, cert_timer_cb, proxy_context)) == NULL) { return -1; } cert_updater->query_retry_step = 0U; cert_updater->evdns_base = NULL; return 0; } static int cert_updater_update(ProxyContext * const proxy_context) { CertUpdater *cert_updater = &proxy_context->cert_updater; DNSCRYPT_PROXY_CERTS_UPDATE_START(); if (cert_updater->evdns_base != NULL) { evdns_base_free(cert_updater->evdns_base, 0); } if ((cert_updater->evdns_base = evdns_base_new(proxy_context->event_loop, 0)) == NULL) { return -1; } if (evdns_base_nameserver_sockaddr_add(cert_updater->evdns_base, (struct sockaddr *) &proxy_context->resolver_sockaddr, proxy_context->resolver_sockaddr_len, DNS_QUERY_NO_SEARCH) != 0) { return -1; } if (proxy_context->tcp_only != 0) { (void) evdns_base_set_option(cert_updater->evdns_base, "use-tcp", "always"); } else { (void) evdns_base_set_option(cert_updater->evdns_base, "use-tcp", "on-tc"); } if (evdns_base_resolve_txt(cert_updater->evdns_base, proxy_context->provider_name, DNS_QUERY_NO_SEARCH, cert_query_cb, proxy_context) == NULL) { return -1; } return 0; } int cert_updater_start(ProxyContext * const proxy_context) { evdns_set_random_init_fn(NULL); evdns_set_random_bytes_fn(randombytes_buf); cert_updater_update(proxy_context); return 0; } void cert_updater_stop(ProxyContext * const proxy_context) { CertUpdater * const cert_updater = &proxy_context->cert_updater; assert(cert_updater->cert_timer != NULL); evtimer_del(cert_updater->cert_timer); } void cert_updater_free(ProxyContext * const proxy_context) { CertUpdater * const cert_updater = &proxy_context->cert_updater; event_free(cert_updater->cert_timer); cert_updater->cert_timer = NULL; if (cert_updater->evdns_base != NULL) { evdns_base_free(cert_updater->evdns_base, 0); cert_updater->evdns_base = NULL; } } dnscrypt-proxy-1.9.4/src/proxy/cert.h000644 000765 000024 00000001712 13037731714 017233 0ustar00jstaff000000 000000 #ifndef __CERT_H__ #define __CERT_H__ 1 #include #include #define CERT_QUERY_RETRY_MIN_DELAY 1 #define CERT_QUERY_RETRY_MAX_DELAY (5 * 60) #define CERT_QUERY_RETRY_STEPS 100 #define CERT_QUERY_RETRY_DELAY_AFTER_SUCCESS_MIN_DELAY (60 * 60) #define CERT_QUERY_RETRY_DELAY_AFTER_SUCCESS_JITTER 100 #ifndef CERT_QUERY_TEST_RETRY_STEPS # define CERT_QUERY_TEST_RETRY_STEPS 2 #endif #define CERT_RECOMMENDED_MAX_KEY_ROTATION_PERIOD 86400 typedef struct CertUpdater_ { struct evdns_base *evdns_base; struct event *cert_timer; unsigned int query_retry_step; } CertUpdater; struct ProxyContext_; int cert_updater_init(struct ProxyContext_ * const proxy_context); int cert_updater_start(struct ProxyContext_ * const proxy_context); void cert_updater_stop(struct ProxyContext_ * const proxy_context); void cert_updater_free(struct ProxyContext_ * const proxy_context); #endif dnscrypt-proxy-1.9.4/src/proxy/cert_p.h000644 000765 000024 00000001151 13037731714 017547 0ustar00jstaff000000 000000 #ifndef __CERT_P_H__ #define __CERT_P_H__ 1 #include #include #include #define CERT_MAGIC_CERT "DNSC" typedef struct Bincert_ { uint8_t magic_cert[4]; uint8_t version_major[2]; uint8_t version_minor[2]; uint8_t server_publickey[crypto_box_PUBLICKEYBYTES]; uint8_t magic_query[8]; uint8_t serial[4]; uint8_t ts_begin[4]; uint8_t ts_end[4]; uint8_t end[]; } Bincert; typedef struct SignedBincert_ { uint8_t magic_cert[4]; uint8_t version_major[2]; uint8_t version_minor[2]; uint8_t signed_data[]; } SignedBincert; #endif dnscrypt-proxy-1.9.4/src/proxy/dnscrypt.c000644 000765 000024 00000006010 13037731714 020133 0ustar00jstaff000000 000000 #include #include #include #include #include #include #include #include #include #include #include #include #include "dnscrypt.h" #include "utils.h" size_t dnscrypt_response_header_size(void) { return sizeof DNSCRYPT_MAGIC_RESPONSE - 1U + crypto_box_NONCEBYTES + crypto_box_MACBYTES; } size_t dnscrypt_query_header_size(void) { return DNSCRYPT_MAGIC_QUERY_LEN + crypto_box_PUBLICKEYBYTES + crypto_box_HALF_NONCEBYTES + crypto_box_MACBYTES; } int dnscrypt_cmp_client_nonce(const uint8_t client_nonce[crypto_box_HALF_NONCEBYTES], const uint8_t * const buf, const size_t len) { const size_t client_nonce_offset = sizeof DNSCRYPT_MAGIC_RESPONSE - 1U; if (len < client_nonce_offset + crypto_box_HALF_NONCEBYTES || sodium_memcmp(client_nonce, buf + client_nonce_offset, crypto_box_HALF_NONCEBYTES) != 0) { return -1; } return 0; } size_t dnscrypt_pad(uint8_t *buf, const size_t len, const size_t max_len) { uint8_t *buf_padding_area = buf + len; size_t padded_len, padding_len; if (max_len < len + DNSCRYPT_MIN_PAD_LEN) { return len; } #ifdef RANDOM_LENGTH_PADDING padded_len = len + DNSCRYPT_MIN_PAD_LEN + randombytes_uniform ((uint32_t) (max_len - len - DNSCRYPT_MIN_PAD_LEN + 1U)); padded_len += DNSCRYPT_BLOCK_SIZE - padded_len % DNSCRYPT_BLOCK_SIZE; if (padded_len > max_len) { padded_len = max_len; } #else padded_len = max_len; #endif assert(padded_len >= len); padding_len = padded_len - len; memset(buf_padding_area, 0, padding_len); *buf_padding_area = 0x80; assert(max_len >= padded_len); return padded_len; } void dnscrypt_key_to_fingerprint(char fingerprint[80U], const uint8_t * const key) { const size_t fingerprint_size = 80U; size_t fingerprint_pos = (size_t) 0U; size_t key_pos = (size_t) 0U; COMPILER_ASSERT(crypto_box_PUBLICKEYBYTES == 32U); COMPILER_ASSERT(crypto_box_SECRETKEYBYTES == 32U); for (;;) { assert(fingerprint_size > fingerprint_pos); evutil_snprintf(&fingerprint[fingerprint_pos], fingerprint_size - fingerprint_pos, "%02X%02X", key[key_pos], key[key_pos + 1U]); key_pos += 2U; if (key_pos >= crypto_box_PUBLICKEYBYTES) { break; } fingerprint[fingerprint_pos + 4U] = ':'; fingerprint_pos += 5U; } } int dnscrypt_fingerprint_to_key(const char * const fingerprint, uint8_t key[crypto_box_PUBLICKEYBYTES]) { size_t key_len; if (fingerprint != NULL && sodium_hex2bin(key, crypto_box_PUBLICKEYBYTES, fingerprint, strlen(fingerprint), ": \t\r\n", &key_len, NULL) == 0 && key_len == crypto_box_PUBLICKEYBYTES) { return 0; } return -1; } dnscrypt-proxy-1.9.4/src/proxy/dnscrypt.h000644 000765 000024 00000002077 13037731714 020151 0ustar00jstaff000000 000000 #ifndef __DNSCRYPT_H__ #define __DNSCRYPT_H__ 1 #include #include #include #define DNSCRYPT_MAGIC_QUERY_LEN 8U #define DNSCRYPT_MAGIC_RESPONSE "r6fnvWj8" #ifndef DNSCRYPT_MAX_PADDING # define DNSCRYPT_MAX_PADDING 256U #endif #ifndef DNSCRYPT_BLOCK_SIZE # define DNSCRYPT_BLOCK_SIZE 64U #endif #ifndef DNSCRYPT_MIN_PAD_LEN # define DNSCRYPT_MIN_PAD_LEN 8U #endif #define crypto_box_HALF_NONCEBYTES (crypto_box_NONCEBYTES / 2U) size_t dnscrypt_response_header_size(void); size_t dnscrypt_query_header_size(void); int dnscrypt_cmp_client_nonce(const uint8_t client_nonce[crypto_box_HALF_NONCEBYTES], const uint8_t * const buf, const size_t len); size_t dnscrypt_pad(uint8_t *buf, const size_t len, const size_t max_len); void dnscrypt_key_to_fingerprint(char fingerprint[80U], const uint8_t * const key); int dnscrypt_fingerprint_to_key(const char * const fingerprint, uint8_t key[crypto_box_PUBLICKEYBYTES]); #endif dnscrypt-proxy-1.9.4/src/proxy/dnscrypt_client.c000644 000765 000024 00000023115 13037731714 021476 0ustar00jstaff000000 000000 #include #include #include #ifdef _WIN32 # include #else # include #endif #include #include #include #include #include #include #include #include "dnscrypt.h" #include "dnscrypt_client.h" #include "utils.h" #include "shims.h" static void dnscrypt_make_client_nonce(DNSCryptClient * const client, uint8_t client_nonce[crypto_box_HALF_NONCEBYTES]) { uint64_t ts; uint64_t tsn; uint32_t suffix; ts = dnscrypt_hrtime(); if (ts <= client->nonce_ts_last) { ts = client->nonce_ts_last + (uint64_t) 1U; } client->nonce_ts_last = ts; tsn = (ts << 10) | (randombytes_random() & 0x3ff); #ifdef WORDS_BIGENDIAN tsn = (((uint64_t) htonl((uint32_t) tsn)) << 32) | htonl((uint32_t) (tsn >> 32)); #endif COMPILER_ASSERT(crypto_box_HALF_NONCEBYTES == 12U); memcpy(client_nonce, &tsn, 8U); suffix = randombytes_random(); memcpy(client_nonce + 8U, &suffix, 4U); } // 8 bytes: magic_query // 32 bytes: the client's DNSCurve public key (crypto_box_PUBLICKEYBYTES) // 12 bytes: a client-selected nonce for this packet (crypto_box_NONCEBYTES / 2) // 16 bytes: Poly1305 MAC (crypto_box_MACBYTES) ssize_t dnscrypt_client_curve(DNSCryptClient * const client, uint8_t client_nonce[crypto_box_HALF_NONCEBYTES], uint8_t *buf, size_t len, const size_t max_len) { uint8_t eph_publickey[crypto_box_PUBLICKEYBYTES]; uint8_t eph_secretkey[crypto_box_SECRETKEYBYTES]; uint8_t eph_nonce[crypto_stream_NONCEBYTES]; uint8_t nonce[crypto_box_NONCEBYTES]; uint8_t *publickey; uint8_t *boxed; int res; if (max_len < len || max_len - len < dnscrypt_query_header_size()) { return (ssize_t) -1; } assert(max_len > dnscrypt_query_header_size()); boxed = buf + sizeof client->magic_query + crypto_box_PUBLICKEYBYTES + crypto_box_HALF_NONCEBYTES; assert((boxed - buf) + crypto_box_MACBYTES <= dnscrypt_query_header_size()); memmove(boxed, buf, len); len = dnscrypt_pad(boxed, len, max_len - dnscrypt_query_header_size()); dnscrypt_make_client_nonce(client, nonce); memcpy(client_nonce, nonce, crypto_box_HALF_NONCEBYTES); memset(nonce + crypto_box_HALF_NONCEBYTES, 0, crypto_box_HALF_NONCEBYTES); if (client->ephemeral_keys == 0) { publickey = client->publickey; if (client->cipher == CIPHER_XSALSA20POLY1305) { res = crypto_box_easy_afternm(boxed, boxed, len, nonce, client->nmkey); #ifdef HAVE_XCHACHA20 } else if (client->cipher == CIPHER_XCHACHA20POLY1305) { res = crypto_box_curve25519xchacha20poly1305_easy_afternm(boxed, boxed, len, nonce, client->nmkey); #endif } else { return (ssize_t) -1; } } else { COMPILER_ASSERT(crypto_box_HALF_NONCEBYTES < sizeof eph_nonce); memcpy(eph_nonce, client_nonce, crypto_box_HALF_NONCEBYTES); memcpy(eph_nonce + crypto_box_HALF_NONCEBYTES, client->nonce_pad, crypto_box_HALF_NONCEBYTES); crypto_stream(eph_secretkey, sizeof eph_secretkey, eph_nonce, client->secretkey); crypto_scalarmult_base(eph_publickey, eph_secretkey); publickey = eph_publickey; if (client->cipher == CIPHER_XSALSA20POLY1305) { res = crypto_box_easy(boxed, boxed, len, nonce, client->publickey, eph_secretkey); #ifdef HAVE_XCHACHA20 } else if (client->cipher == CIPHER_XCHACHA20POLY1305) { res = crypto_box_curve25519xchacha20poly1305_easy(boxed, boxed, len, nonce, client->publickey, eph_secretkey); #endif } else { return (ssize_t) -1; } sodium_memzero(eph_secretkey, sizeof eph_secretkey); } if (res != 0) { return (ssize_t) -1; } memcpy(buf, client->magic_query, sizeof client->magic_query); memcpy(buf + sizeof client->magic_query, publickey, crypto_box_PUBLICKEYBYTES); memcpy(buf + sizeof client->magic_query + crypto_box_PUBLICKEYBYTES, nonce, crypto_box_HALF_NONCEBYTES); return (ssize_t) (len + dnscrypt_query_header_size()); } // 8 bytes: the string r6fnvWJ8 (DNSCRYPT_MAGIC_RESPONSE) // 12 bytes: the client's nonce (crypto_box_NONCEBYTES / 2) // 12 bytes: a server-selected nonce extension (crypto_box_NONCEBYTES / 2) // 16 bytes: Poly1305 MAC (crypto_box_MACBYTES) #define DNSCRYPT_SERVER_BOX_OFFSET \ (sizeof DNSCRYPT_MAGIC_RESPONSE - 1U + crypto_box_NONCEBYTES) int dnscrypt_client_uncurve(const DNSCryptClient * const client, const uint8_t client_nonce[crypto_box_HALF_NONCEBYTES], uint8_t * const buf, size_t * const lenp) { uint8_t eph_publickey[crypto_box_PUBLICKEYBYTES]; uint8_t eph_secretkey[crypto_box_SECRETKEYBYTES]; uint8_t eph_nonce[crypto_stream_NONCEBYTES]; uint8_t nonce[crypto_box_NONCEBYTES]; size_t len = *lenp; size_t ciphertext_len; size_t message_len; int res; if (len <= dnscrypt_response_header_size() || memcmp(buf, DNSCRYPT_MAGIC_RESPONSE, sizeof DNSCRYPT_MAGIC_RESPONSE - 1U)) { return -1; } if (dnscrypt_cmp_client_nonce(client_nonce, buf, len) != 0) { return -1; } if (len <= DNSCRYPT_SERVER_BOX_OFFSET + crypto_box_MACBYTES) { return -1; } ciphertext_len = len - DNSCRYPT_SERVER_BOX_OFFSET; message_len = ciphertext_len - crypto_box_MACBYTES; memcpy(nonce, buf + sizeof DNSCRYPT_MAGIC_RESPONSE - 1U, crypto_box_NONCEBYTES); if (client->ephemeral_keys == 0) { if (client->cipher == CIPHER_XSALSA20POLY1305) { res = crypto_box_open_easy_afternm (buf, buf + DNSCRYPT_SERVER_BOX_OFFSET, ciphertext_len, nonce, client->nmkey); #ifdef HAVE_XCHACHA20 } else if (client->cipher == CIPHER_XCHACHA20POLY1305) { res = crypto_box_curve25519xchacha20poly1305_open_easy_afternm (buf, buf + DNSCRYPT_SERVER_BOX_OFFSET, ciphertext_len, nonce, client->nmkey); #endif } else { return -1; } } else { memcpy(eph_nonce, client_nonce, crypto_box_HALF_NONCEBYTES); memcpy(eph_nonce + crypto_box_HALF_NONCEBYTES, client->nonce_pad, crypto_box_HALF_NONCEBYTES); crypto_stream(eph_secretkey, sizeof eph_secretkey, eph_nonce, client->secretkey); crypto_scalarmult_base(eph_publickey, eph_secretkey); if (client->cipher == CIPHER_XSALSA20POLY1305) { res = crypto_box_open_easy (buf, buf + DNSCRYPT_SERVER_BOX_OFFSET, ciphertext_len, nonce, client->publickey, eph_secretkey); #ifdef HAVE_XCHACHA20 } else if (client->cipher == CIPHER_XCHACHA20POLY1305) { res = crypto_box_curve25519xchacha20poly1305_open_easy (buf, buf + DNSCRYPT_SERVER_BOX_OFFSET, ciphertext_len, nonce, client->publickey, eph_secretkey); #endif } else { return -1; } sodium_memzero(eph_secretkey, sizeof eph_secretkey); } sodium_memzero(nonce, sizeof nonce); if (res != 0) { return -1; } while (message_len > 0U && buf[--message_len] == 0U) { } if (buf[message_len] != 0x80) { return -1; } *lenp = message_len; return 0; } int dnscrypt_client_init_magic_query(DNSCryptClient * const client, const uint8_t magic_query[DNSCRYPT_MAGIC_QUERY_LEN], Cipher cipher) { COMPILER_ASSERT(DNSCRYPT_MAGIC_QUERY_LEN == sizeof client->magic_query); memcpy(client->magic_query, magic_query, sizeof client->magic_query); client->cipher = cipher; return 0; } int dnscrypt_client_init_resolver_publickey(DNSCryptClient * const client, const uint8_t resolver_publickey[crypto_box_PUBLICKEYBYTES]) { int res = -1; #if crypto_box_BEFORENMBYTES != crypto_box_PUBLICKEYBYTES # error crypto_box_BEFORENMBYTES != crypto_box_PUBLICKEYBYTES #endif if (client->ephemeral_keys == 0) { if (client->cipher == CIPHER_XSALSA20POLY1305) { res = crypto_box_beforenm (client->nmkey, resolver_publickey, client->secretkey); #ifdef HAVE_XCHACHA20 } else if (client->cipher == CIPHER_XCHACHA20POLY1305) { res = crypto_box_curve25519xchacha20poly1305_beforenm (client->nmkey, resolver_publickey, client->secretkey); #endif } } else { memcpy(client->publickey, resolver_publickey, sizeof client->publickey); res = 0; } return res; } int dnscrypt_client_init_with_new_session_key(DNSCryptClient * const client) { assert(client->ephemeral_keys != 0); randombytes_buf(client->nonce_pad, sizeof client->nonce_pad); randombytes_buf(client->secretkey, sizeof client->secretkey); randombytes_stir(); return 0; } int dnscrypt_client_init_with_new_key_pair(DNSCryptClient * const client) { assert(client->ephemeral_keys == 0); crypto_box_keypair(client->publickey, client->secretkey); randombytes_stir(); return 0; } int dnscrypt_client_init_with_client_key(DNSCryptClient * const client) { if (crypto_scalarmult_base(client->publickey, client->secretkey) != 0) { return -1; } return 0; } dnscrypt-proxy-1.9.4/src/proxy/dnscrypt_client.h000644 000765 000024 00000004245 13037731714 021506 0ustar00jstaff000000 000000 #ifndef __DNSCRYPT_CLIENT_H__ #define __DNSCRYPT_CLIENT_H__ 1 #include #include #include "dnscrypt.h" typedef enum Cipher_ { CIPHER_UNDEFINED, CIPHER_XSALSA20POLY1305, CIPHER_XCHACHA20POLY1305 } Cipher; typedef struct DNSCryptClient_ { uint8_t magic_query[DNSCRYPT_MAGIC_QUERY_LEN]; uint8_t publickey[crypto_box_PUBLICKEYBYTES]; uint8_t secretkey[crypto_box_SECRETKEYBYTES]; uint8_t nmkey[crypto_box_BEFORENMBYTES]; uint8_t nonce_pad[crypto_box_HALF_NONCEBYTES]; uint64_t nonce_ts_last; Cipher cipher; _Bool ephemeral_keys; } DNSCryptClient; ssize_t dnscrypt_client_curve(DNSCryptClient * const client, uint8_t client_nonce[crypto_box_HALF_NONCEBYTES], uint8_t *buf, size_t len, const size_t max_len); int dnscrypt_client_uncurve(const DNSCryptClient * const client, const uint8_t client_nonce[crypto_box_HALF_NONCEBYTES], uint8_t * const buf, size_t * const lenp); int dnscrypt_client_init_with_key_pair(DNSCryptClient * const client, const uint8_t client_publickey[crypto_box_PUBLICKEYBYTES], const uint8_t client_secretkey[crypto_box_SECRETKEYBYTES]); int dnscrypt_client_create_key_pair(DNSCryptClient * const client, uint8_t client_publickey[crypto_box_PUBLICKEYBYTES], uint8_t client_secretkey[crypto_box_SECRETKEYBYTES]); int dnscrypt_client_init_with_new_session_key(DNSCryptClient * const client); int dnscrypt_client_init_with_new_key_pair(DNSCryptClient * const client); int dnscrypt_client_init_with_client_key(DNSCryptClient * const client); int dnscrypt_client_init_magic_query(DNSCryptClient * const client, const uint8_t magic_query[DNSCRYPT_MAGIC_QUERY_LEN], Cipher cipher); int dnscrypt_client_init_resolver_publickey(DNSCryptClient * const client, const uint8_t resolver_publickey[crypto_box_PUBLICKEYBYTES]); #endif dnscrypt-proxy-1.9.4/src/proxy/dnscrypt_proxy.h000644 000765 000024 00000010621 13040501146 021370 0ustar00jstaff000000 000000 #ifndef __DNSCRYPT_PROXY_H__ #define __DNSCRYPT_PROXY_H__ 1 #include #include #include #include #include #include #include #include "app.h" #include "cert.h" #include "dnscrypt_client.h" #include "queue.h" #ifndef DNS_QUERY_TIMEOUT # define DNS_QUERY_TIMEOUT 10 #endif #define DNS_MAX_PACKET_SIZE_UDP_RECV (65536U - 20U - 8U) #define DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND 512U #if DNS_MAX_PACKET_SIZE_UDP_RECV > DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND # define DNS_MAX_PACKET_SIZE_UDP DNS_MAX_PACKET_SIZE_UDP_RECV #else # define DNS_MAX_PACKET_SIZE_UDP DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND #endif #ifndef DNS_DEFAULT_STANDARD_DNS_PORT # define DNS_DEFAULT_STANDARD_DNS_PORT "53" #endif #ifndef DNS_DEFAULT_LOCAL_PORT # define DNS_DEFAULT_LOCAL_PORT DNS_DEFAULT_STANDARD_DNS_PORT #endif #ifndef DNS_DEFAULT_RESOLVER_PORT # define DNS_DEFAULT_RESOLVER_PORT "443" #endif #ifndef DEFAULT_RESOLVERS_LIST # ifdef _WIN32 # define DEFAULT_RESOLVERS_LIST "dnscrypt-resolvers.csv" # else # define DEFAULT_RESOLVERS_LIST PKGDATADIR "/dnscrypt-resolvers.csv" # endif #endif #define DNS_HEADER_SIZE 12U #define DNS_FLAGS_TC 2U #define DNS_FLAGS_QR 128U #define DNS_FLAGS2_RA 128U #define DNS_CLASS_IN 1U #define DNS_TYPE_TXT 16U #define DNS_TYPE_OPT 41U #define DNS_OFFSET_QUESTION DNS_HEADER_SIZE #define DNS_OFFSET_FLAGS 2U #define DNS_OFFSET_FLAGS2 3U #define DNS_OFFSET_QDCOUNT 4U #define DNS_OFFSET_ANCOUNT 6U #define DNS_OFFSET_NSCOUNT 8U #define DNS_OFFSET_ARCOUNT 10U #define DNS_OFFSET_EDNS_TYPE 0U #define DNS_OFFSET_EDNS_PAYLOAD_SIZE 2U #define DNS_DEFAULT_EDNS_PAYLOAD_SIZE 1252U #define DNSCRYPT_PROTOCOL_VERSIONS "2" #define DNSCRYPT_EXIT_CERT_NOCERTS 2 #define DNSCRYPT_EXIT_CERT_TIMEOUT 3 #define DNSCRYPT_EXIT_CERT_MARGIN 4 typedef TAILQ_HEAD(TCPRequestQueue_, TCPRequest_) TCPRequestQueue; typedef TAILQ_HEAD(UDPRequestQueue_, UDPRequest_) UDPRequestQueue; typedef struct ProxyContext_ { uint8_t dnscrypt_magic_query[DNSCRYPT_MAGIC_QUERY_LEN]; uint8_t provider_publickey[crypto_sign_ed25519_PUBLICKEYBYTES]; uint8_t resolver_publickey[crypto_box_PUBLICKEYBYTES]; DNSCryptClient dnscrypt_client; CertUpdater cert_updater; struct sockaddr_storage local_sockaddr; struct sockaddr_storage resolver_sockaddr; TCPRequestQueue tcp_request_queue; UDPRequestQueue udp_request_queue; AppContext *app_context; struct event_base *event_loop; FILE *log_fp; const char *client_key_file; const char *local_ip; const char *log_file; const char *pid_file; const char *provider_name; const char *provider_publickey_s; const char *resolvers_list; const char *resolver_name; const char *resolver_ip; const char *syslog_prefix; #ifndef _WIN32 char *user_dir; char *user_name; #endif struct evconnlistener *tcp_conn_listener; struct event *tcp_accept_timer; struct event *udp_listener_event; struct event *udp_proxy_resolver_event; ev_socklen_t local_sockaddr_len; ev_socklen_t resolver_sockaddr_len; size_t edns_payload_size; size_t udp_current_max_size; size_t udp_max_size; evutil_socket_t tcp_listener_handle; evutil_socket_t udp_listener_handle; evutil_socket_t udp_proxy_resolver_handle; #ifndef _WIN32 uid_t user_id; gid_t user_group; #endif time_t test_cert_margin; unsigned int connections_count; unsigned int connections_count_max; int max_log_level; _Bool daemonize; _Bool ephemeral_keys; _Bool ignore_timestamps; _Bool listeners_started; _Bool syslog; _Bool tcp_only; _Bool test_only; } ProxyContext; int dnscrypt_proxy_start_listeners(ProxyContext * const proxy_context); #endif dnscrypt-proxy-1.9.4/src/proxy/edns.c000644 000765 000024 00000011731 13037731714 017224 0ustar00jstaff000000 000000 #include #include #include #include #include #include #include "dnscrypt_proxy.h" #include "edns.h" #define DNS_MAX_HOSTNAME_LEN 256U static int _skip_name(const uint8_t * const dns_packet, const size_t dns_packet_len, size_t * const offset_p) { size_t offset = *offset_p; size_t name_len = (size_t) 0U; uint8_t label_len; if (dns_packet_len < (size_t) 1U || offset >= dns_packet_len - (size_t) 1U) { return -1; } for (;;) { label_len = dns_packet[offset]; if ((label_len & 0xC0) == 0xC0) { if (2U > dns_packet_len - offset) { return -1; } offset += 2U; break; } if (label_len >= dns_packet_len - offset - 1U) { return -1; } name_len += (size_t) label_len + (size_t) 1U; if (name_len > DNS_MAX_HOSTNAME_LEN) { return -1; } offset += label_len + 1U; if (label_len == 0U) { break; } } if (offset >= dns_packet_len) { return -1; } *offset_p = offset; return 0; } #define DNS_QTYPE_PLUS_QCLASS_LEN 4U static ssize_t edns_get_payload_size(const uint8_t * const dns_packet, const size_t dns_packet_len) { size_t offset; size_t payload_size; unsigned int arcount; assert(dns_packet_len >= DNS_HEADER_SIZE); arcount = (dns_packet[DNS_OFFSET_ARCOUNT] << 8) | dns_packet[DNS_OFFSET_ARCOUNT + 1U]; assert(arcount > 0U); assert(DNS_OFFSET_QUESTION <= DNS_HEADER_SIZE); if (dns_packet[DNS_OFFSET_QDCOUNT] != 0U || dns_packet[DNS_OFFSET_QDCOUNT + 1U] != 1U || (dns_packet[DNS_OFFSET_ANCOUNT] | dns_packet[DNS_OFFSET_ANCOUNT + 1U]) != 0U || (dns_packet[DNS_OFFSET_NSCOUNT] | dns_packet[DNS_OFFSET_NSCOUNT + 1U]) != 0U) { return (ssize_t) -1; } offset = DNS_OFFSET_QUESTION; if (_skip_name(dns_packet, dns_packet_len, &offset) != 0) { return (ssize_t) -1; } assert(dns_packet_len > (size_t) DNS_QTYPE_PLUS_QCLASS_LEN); if (offset >= dns_packet_len - (size_t) DNS_QTYPE_PLUS_QCLASS_LEN) { return (ssize_t) -1; } offset += DNS_QTYPE_PLUS_QCLASS_LEN; assert(dns_packet_len >= DNS_OFFSET_EDNS_PAYLOAD_SIZE + 2U); if (_skip_name(dns_packet, dns_packet_len, &offset) != 0 || offset >= dns_packet_len - DNS_OFFSET_EDNS_PAYLOAD_SIZE - 2U) { return (ssize_t) -1; } assert(DNS_OFFSET_EDNS_PAYLOAD_SIZE > DNS_OFFSET_EDNS_TYPE); if (dns_packet[offset + DNS_OFFSET_EDNS_TYPE] != 0U || dns_packet[offset + DNS_OFFSET_EDNS_TYPE + 1U] != DNS_TYPE_OPT) { return (ssize_t) -1; } payload_size = (dns_packet[offset + DNS_OFFSET_EDNS_PAYLOAD_SIZE] << 8) | dns_packet[offset + DNS_OFFSET_EDNS_PAYLOAD_SIZE + 1U]; if (payload_size < DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND) { payload_size = DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND; } return (ssize_t) payload_size; } int edns_add_section(ProxyContext * const proxy_context, uint8_t * const dns_packet, size_t * const dns_packet_len_p, size_t dns_packet_max_size, size_t * const request_edns_payload_size) { const size_t edns_payload_size = proxy_context->edns_payload_size; assert(edns_payload_size <= (size_t) 0xFFFF); assert(DNS_OFFSET_ARCOUNT + 2U <= DNS_HEADER_SIZE); if (edns_payload_size <= DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND || *dns_packet_len_p <= DNS_HEADER_SIZE) { *request_edns_payload_size = (size_t) 0U; return -1; } if ((dns_packet[DNS_OFFSET_ARCOUNT] | dns_packet[DNS_OFFSET_ARCOUNT + 1U]) != 0U) { const ssize_t edns_payload_ssize = edns_get_payload_size(dns_packet, *dns_packet_len_p); if (edns_payload_ssize <= (ssize_t) 0U) { *request_edns_payload_size = (size_t) 0U; return -1; } *request_edns_payload_size = (size_t) edns_payload_ssize; return 1; } assert(dns_packet_max_size >= *dns_packet_len_p); assert(DNS_OFFSET_EDNS_TYPE == 0U); assert(DNS_OFFSET_EDNS_PAYLOAD_SIZE == 2U); uint8_t opt_rr[] = { 0U, /* name */ 0U, DNS_TYPE_OPT, /* type */ (edns_payload_size >> 8) & 0xFF, edns_payload_size & 0xFF, 0U, 0U, 0U, 0U, /* rcode */ 0U, 0U /* rdlen */ }; if (dns_packet_max_size - *dns_packet_len_p < sizeof opt_rr) { *request_edns_payload_size = (size_t) 0U; return -1; } assert(dns_packet[DNS_OFFSET_ARCOUNT + 1U] == 0U); dns_packet[DNS_OFFSET_ARCOUNT + 1U] = 1U; memcpy(dns_packet + *dns_packet_len_p, opt_rr, sizeof opt_rr); *dns_packet_len_p += sizeof opt_rr; *request_edns_payload_size = edns_payload_size; assert(*dns_packet_len_p <= dns_packet_max_size); assert(*dns_packet_len_p <= 0xFFFF); return 0; } dnscrypt-proxy-1.9.4/src/proxy/edns.h000644 000765 000024 00000000641 13037731714 017227 0ustar00jstaff000000 000000 #ifndef __EDNS_H__ #define __EDNS_H__ 1 #include #include #include #include "dnscrypt_proxy.h" int edns_add_section(ProxyContext * const proxy_context, uint8_t * const dns_packet, size_t * const dns_packet_len_p, size_t dns_packet_max_size, size_t * const request_edns_payload_size); #endif dnscrypt-proxy-1.9.4/src/proxy/getpwnam.h000644 000765 000024 00000001113 13037731714 020113 0ustar00jstaff000000 000000 #ifndef __GETPWNAM_H__ #define __GETPWNAM_H__ 1 #include #include #ifdef HAVE_PWD_H # include # ifdef HAVE_UUID_UUID_H # include # endif #elif defined(HAVE_GETPWNAM) # include # ifdef HAVE_UUID_UUID_H # include # endif struct passwd { char *pw_name; char *pw_passwd; uid_t pw_uid; gid_t pw_gid; time_t pw_change; char *pw_class; char *pw_gecos; char *pw_dir; char *pw_shell; time_t pw_expire; }; struct passwd *getpwnam(const char *); #endif #endif dnscrypt-proxy-1.9.4/src/proxy/logger.c000644 000765 000024 00000010256 13037731714 017553 0ustar00jstaff000000 000000 #include #include #include #include #include #include #ifndef _WIN32 # include #endif #include #include #include #ifdef HAVE_LIBSYSTEMD # include # include #endif #include #include "dnscrypt_proxy.h" #include "logger.h" #include "safe_rw.h" int logger_open_syslog(struct ProxyContext_ * const context) { assert(context->syslog != 0); #ifndef _WIN32 openlog(PACKAGE_TARNAME, LOG_NDELAY | LOG_PID, LOG_DAEMON); #endif return 0; } static int timestamp_fprint(FILE * const fp) { char now_s[128]; time_t now; struct tm *tm; if (time(&now) == (time_t) -1) { fprintf(fp, "- "); return -1; } tm = localtime(&now); strftime(now_s, sizeof now_s, "%c", tm); fprintf(fp, "%s ", now_s); return 0; } int logger(struct ProxyContext_ * const context, const int crit, const char * const format, ...) { static char previous_line[MAX_LOG_LINE]; static time_t last_log_ts = (time_t) 0; static unsigned int burst_counter = 0U; char line[MAX_LOG_LINE]; FILE *log_fp; const char *urgency; va_list va; time_t now = time(NULL); size_t len; if (context != NULL) { if (crit > context->max_log_level) { return 0; } } else { #ifndef DEBUG if (crit > LOG_INFO) { return 0; } #endif } switch (crit) { case LOG_INFO: urgency = "[INFO] "; break; case LOG_WARNING: urgency = "[WARNING] "; break; case LOG_ERR: urgency = "[ERROR] "; break; case LOG_NOTICE: urgency = "[NOTICE] "; break; case LOG_DEBUG: urgency = "[DEBUG] "; break; default: urgency = ""; } va_start(va, format); len = (size_t) evutil_vsnprintf(line, sizeof line, format, va); va_end(va); if (len >= sizeof line) { assert(sizeof line > (size_t) 0U); len = sizeof line - (size_t) 1U; } line[len++] = 0; #ifndef _WIN32 if (context != NULL && context->log_fp == NULL && context->syslog != 0) { if (context->syslog_prefix != NULL) { syslog(crit, "%s %s", context->syslog_prefix, line); } else { syslog(crit, "%s", line); } return 0; } #endif if (memcmp(previous_line, line, len) == 0) { burst_counter++; if (burst_counter > LOGGER_ALLOWED_BURST_FOR_IDENTICAL_LOG_ENTRIES && now - last_log_ts < LOGGER_DELAY_BETWEEN_IDENTICAL_LOG_ENTRIES) { return 1; } } else { burst_counter = 0U; } last_log_ts = now; assert(sizeof previous_line >= sizeof line); memcpy(previous_line, line, len); if (context == NULL || context->log_fp == NULL) { log_fp = crit >= LOG_NOTICE ? stdout : stderr; } else { log_fp = context->log_fp; } timestamp_fprint(log_fp); if (context != NULL && context->syslog_prefix) { fprintf(log_fp, "%s%s %s\n", urgency, context->syslog_prefix, line); } else { fprintf(log_fp, "%s%s\n", urgency, line); } fflush(log_fp); return 0; } int logger_noformat(struct ProxyContext_ * const context, const int crit, const char * const msg) { return logger(context, crit, "%s", msg); } int logger_error(struct ProxyContext_ * const context, const char * const msg) { const char *const err_msg = strerror(errno); return logger(context, LOG_ERR, "%s: %s", msg, err_msg); } void systemd_notify(struct ProxyContext_ * const context, const char * const msg) { #ifdef HAVE_LIBSYSTEMD const int err = sd_notify(0, msg); if (err < 0) { logger(context, LOG_DEBUG, "sd_notify failed: %s", strerror(-err)); } #endif } int logger_close(struct ProxyContext_ * const context) { #ifndef _WIN32 if (context->syslog != 0) { closelog(); } #endif if (context->log_fp != NULL) { return fclose(context->log_fp); } return 0; } dnscrypt-proxy-1.9.4/src/proxy/logger.h000644 000765 000024 00000002434 13037731714 017557 0ustar00jstaff000000 000000 #ifndef __LOGGER_H__ #define __LOGGER_H__ 1 #ifndef _WIN32 # include #endif #ifndef MAX_LOG_LINE # define MAX_LOG_LINE 1024U #endif #ifndef LOGGER_DELAY_BETWEEN_IDENTICAL_LOG_ENTRIES # define LOGGER_DELAY_BETWEEN_IDENTICAL_LOG_ENTRIES 60 #endif #ifndef LOGGER_ALLOWED_BURST_FOR_IDENTICAL_LOG_ENTRIES # define LOGGER_ALLOWED_BURST_FOR_IDENTICAL_LOG_ENTRIES 5U #endif #ifdef DEBUG # define XDEBUG(X) do { X; 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install-sbinPROGRAMS install-strip \ installcheck installcheck-am installdirs maintainer-clean \ maintainer-clean-generic mostlyclean mostlyclean-compile \ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ tags tags-am uninstall uninstall-am uninstall-sbinPROGRAMS .PRECIOUS: Makefile probes.h: @PROBES_SOURCE@ cat @PROBES_SOURCE@ > $@ probes_dnscrypt_proxy.h: probes_dnscrypt_proxy.d @DTRACE@ -o $@ -h -s probes_dnscrypt_proxy.d # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: dnscrypt-proxy-1.9.4/src/proxy/minicsv.c000644 000765 000024 00000005105 13037731714 017741 0ustar00jstaff000000 000000 #include #include #include #include "minicsv.h" static inline void _minicsv_out_col(char * const col_start, char ** const cols, size_t * const cols_count_p, const size_t cols_max) { if (*cols_count_p < cols_max) { cols[*cols_count_p] = col_start; } (*cols_count_p)++; } static inline void _minicsv_parse_line_noquote(const int c, char ** const pos_p, char ** const col_start_p, int * const state_p, char ** const cols, size_t * const cols_count_p, const size_t cols_max) { switch (c) { case '\n': *state_p = 2; case MINICSV_DELIM: *(*pos_p)++ = 0; _minicsv_out_col(*col_start_p, cols, cols_count_p, cols_max); *col_start_p = *pos_p; break; case MINICSV_QUOTE: *state_p = 1; *col_start_p = ++*pos_p; break; case '\r': **pos_p = 0; default: (*pos_p)++; } } static inline void _minicsv_parse_line_quote(const int c, char ** const pos_p, int * const state_p) { if (c == MINICSV_QUOTE) { if (*(*pos_p + 1U) == MINICSV_QUOTE) { memmove(*pos_p, *pos_p + 1U, strlen(*pos_p)); } else { **pos_p = 0; *state_p = 0; } } (*pos_p)++; } char * minicsv_parse_line(char * const buf, char ** const cols, size_t * const cols_count_p, const size_t cols_max) { char *col_start = buf; char *pos = buf; int c; int state = 0; *cols_count_p = (size_t) 0U; while ((c = *pos) != 0) { switch (state) { case 0: _minicsv_parse_line_noquote(c, &pos, &col_start, &state, cols, cols_count_p, cols_max); break; case 1: _minicsv_parse_line_quote(c, &pos, &state); break; case 2: return pos; } } if (state == 0) { _minicsv_out_col(col_start, cols, cols_count_p, cols_max); } return pos; } void minicsv_trim_cols(char ** const cols, const size_t cols_count) { char *col; size_t col_end; size_t i = (size_t) 0U; while (i < cols_count) { col = cols[i]; while (*col != 0 && isspace((int) (unsigned char) *col)) { cols[i] = ++col; } col_end = strlen(col); while (col_end > (size_t) 0U && isspace((int) (unsigned char) col[--col_end])) { col[col_end] = 0; } i++; } } dnscrypt-proxy-1.9.4/src/proxy/minicsv.h000644 000765 000024 00000002163 13037731714 017747 0ustar00jstaff000000 000000 /* * Copyright (c) 2015 * Frank Denis * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef __MINICSV_H__ #define __MINICSV_H__ #include #define MINICSV_DELIM ',' #define MINICSV_QUOTE '"' char * minicsv_parse_line(char * const buf, char ** const cols, size_t * const cols_count_p, const size_t cols_max); void minicsv_trim_cols(char ** const cols, const size_t cols_count); #endif dnscrypt-proxy-1.9.4/src/proxy/options.c000644 000765 000024 00000076030 13040502571 017760 0ustar00jstaff000000 000000 #include #include #ifdef _WIN32 # include #else # include #endif #include #include #include #include #include #include #include #include #include #include #include #include "dnscrypt_proxy.h" #include "getpwnam.h" #include "options.h" #include "logger.h" #include "minicsv.h" #include "pid_file.h" #include "shims.h" #include "simpleconf.h" #include "simpleconf_dnscrypt.h" #include "utils.h" #include "windows_service.h" #ifdef PLUGINS # include "plugin_options.h" #endif static struct option getopt_long_options[] = { { "resolver-name", 1, NULL, 'R' }, { "local-address", 1, NULL, 'a' }, #ifndef _WIN32 { "daemonize", 0, NULL, 'd' }, #endif { "ephemeral-keys", 0, NULL, 'E' }, { "client-key", 1, NULL, 'K' }, { "resolvers-list", 1, NULL, 'L' }, { "logfile", 1, NULL, 'l' }, { "loglevel", 1, NULL, 'm' }, #ifndef _WIN32 { "pidfile", 1, NULL, 'p' }, #endif { "plugin", 1, NULL, 'X' }, { "provider-name", 1, NULL, 'N' }, { "provider-key", 1, NULL, 'k' }, { "resolver-address", 1, NULL, 'r' }, #ifndef _WIN32 { "syslog", 0, NULL, 'S' }, { "syslog-prefix", 1, NULL, 'Z' }, #endif { "max-active-requests", 1, NULL, 'n' }, { "user", 1, NULL, 'u' }, { "test", 1, NULL, 't' }, { "tcp-only", 0, NULL, 'T' }, { "edns-payload-size", 1, NULL, 'e' }, { "ignore-timestamps", 0, NULL, 'I' }, { "version", 0, NULL, 'V' }, { "help", 0, NULL, 'h' }, #ifdef _WIN32 { "install", 0, NULL, WIN_OPTION_INSTALL }, { "install-with-config-file", 1, NULL, WIN_OPTION_INSTALL_WITH_CONFIG_FILE }, { "reinstall", 0, NULL, WIN_OPTION_REINSTALL }, { "reinstall-with-config-file", 1, NULL, WIN_OPTION_REINSTALL_WITH_CONFIG_FILE }, { "uninstall", 0, NULL, WIN_OPTION_UNINSTALL }, { "service-name", 1, NULL, WIN_OPTION_SERVICE_NAME }, #endif { NULL, 0, NULL, 0 } }; #ifndef _WIN32 static const char *getopt_options = "a:de:EhIk:K:L:l:m:n:p:r:R:St:u:N:TVX:Z:"; #else static const char *getopt_options = "a:e:EhIk:K:L:l:m:n:r:R:t:u:N:TVX:"; #endif #ifndef DEFAULT_CONNECTIONS_COUNT_MAX # define DEFAULT_CONNECTIONS_COUNT_MAX 250U #endif static void options_version(void) { puts(PACKAGE_STRING); puts(""); printf("Compilation date: %s\n", __DATE__); #ifdef PLUGINS puts("Support for plugins: present"); #endif #if defined(PLUGINS_ROOT) && !defined(_WIN32) printf("Plugins root directory: [%s]\n", PLUGINS_ROOT); #endif #ifdef ENABLE_PLUGINS_ROOT puts("Plugins restricted to the default plugins directory: yes"); #endif #ifdef RELAXED_PLUGINS_PERMISSIONS puts("Relaxed plugins permissions: yes"); #endif #ifdef USE_LDNS puts("Support for ldns-based plugins: present"); #endif #ifdef HAVE_LIBSYSTEMD puts("Support for systemd socket activation: present"); #endif #ifdef HAVE_XCHACHA20 puts("Support for the XChaCha20-Poly1305 cipher: present"); #endif } static void options_usage(void) { const struct option *options = getopt_long_options; options_version(); puts("\nOptions:\n"); do { if (options->val < 256) { printf(" -%c\t--%s%s\n", options->val, options->name, options->has_arg ? "=..." : ""); } else { printf(" \t--%s%s\n", options->name, options->has_arg ? "=..." : ""); } options++; } while (options->name != NULL); #ifndef _WIN32 puts("\nPlease consult the dnscrypt-proxy(8) man page for details.\n"); #endif } static void options_init_with_default(AppContext * const app_context, ProxyContext * const proxy_context) { assert(proxy_context->event_loop == NULL); proxy_context->app_context = app_context; proxy_context->connections_count = 0U; proxy_context->connections_count_max = DEFAULT_CONNECTIONS_COUNT_MAX; proxy_context->edns_payload_size = (size_t) DNS_DEFAULT_EDNS_PAYLOAD_SIZE; proxy_context->client_key_file = NULL; proxy_context->local_ip = "127.0.0.1:53"; proxy_context->log_fp = NULL; proxy_context->log_file = NULL; proxy_context->pid_file = NULL; proxy_context->resolvers_list = DEFAULT_RESOLVERS_LIST; proxy_context->resolver_name = NULL; proxy_context->provider_name = NULL; proxy_context->provider_publickey_s = NULL; proxy_context->resolver_ip = NULL; proxy_context->syslog = 0; proxy_context->syslog_prefix = NULL; #ifndef _WIN32 proxy_context->user_name = NULL; proxy_context->user_id = (uid_t) 0; proxy_context->user_group = (uid_t) 0; proxy_context->user_dir = NULL; #endif proxy_context->daemonize = 0; proxy_context->test_cert_margin = (time_t) -1; proxy_context->test_only = 0; proxy_context->tcp_only = 0; proxy_context->ephemeral_keys = 0; proxy_context->ignore_timestamps = 0; } static int options_check_protocol_versions(const char * const provider_name) { const size_t dnscrypt_protocol_versions_len = sizeof DNSCRYPT_PROTOCOL_VERSIONS - (size_t) 1U; if (strncmp(provider_name, DNSCRYPT_PROTOCOL_VERSIONS, dnscrypt_protocol_versions_len) != 0 || provider_name[dnscrypt_protocol_versions_len] != '.') { return -1; } return 0; } static char * options_read_file(const char * const file_name) { FILE *fp; char *file_buf; size_t file_size = (size_t) 0U; assert(file_name != NULL); if ((fp = fopen(file_name, "rb")) == NULL) { return NULL; } while (fgetc(fp) != EOF && file_size < SIZE_MAX) { file_size++; } if (feof(fp) == 0 || file_size <= (size_t) 0U) { fclose(fp); return NULL; } rewind(fp); if ((file_buf = malloc(file_size + 1U)) == NULL) { fclose(fp); return NULL; } if (fread(file_buf, file_size, (size_t) 1U, fp) != 1U) { fclose(fp); free(file_buf); return NULL; } (void) fclose(fp); file_buf[file_size] = 0; return file_buf; } static const char * options_get_col(char * const * const headers, const size_t headers_count, char * const * const cols, const size_t cols_count, const char * const header) { size_t i = (size_t) 0U; while (i < headers_count) { if (strcmp(header, headers[i]) == 0) { if (i < cols_count) { return cols[i]; } break; } i++; } return NULL; } static int options_parse_candidate(ProxyContext * const proxy_context, char * const * const headers, const size_t headers_count, char * const * const cols, const size_t cols_count, uint32_t * const candidate_count_p) { const char *dnssec; const char *nologs; const char *resolver_ip; const char *resolver_name; resolver_name = options_get_col(headers, headers_count, cols, cols_count, "Name"); if (resolver_name == NULL || *resolver_name == 0) { return -1; } nologs = options_get_col(headers, headers_count, cols, cols_count, "No logs"); if (nologs == NULL || evutil_ascii_strcasecmp(nologs, "no") == 0) { return 0; } dnssec = options_get_col(headers, headers_count, cols, cols_count, "DNSSEC validation"); if (dnssec == NULL || evutil_ascii_strcasecmp(dnssec, "no") == 0) { return 0; } resolver_ip = options_get_col(headers, headers_count, cols, cols_count, "Resolver address"); if (*resolver_ip == '[') { return 0; } (*candidate_count_p)++; if (randombytes_uniform(*candidate_count_p) > 0U) { return 0; } free((void *) proxy_context->resolver_name); if ((proxy_context->resolver_name = strdup(resolver_name)) == NULL) { return -1; } return 1; } static int options_parse_resolver(ProxyContext * const proxy_context, char * const * const headers, const size_t headers_count, char * const * const cols, const size_t cols_count) { const char *dnssec; const char *namecoin; const char *nologs; const char *provider_name; const char *provider_publickey_s; const char *resolver_ip; const char *resolver_name; resolver_name = options_get_col(headers, headers_count, cols, cols_count, "Name"); if (resolver_name == NULL) { logger(proxy_context, LOG_ERR, "Invalid resolvers list file: missing 'Name' column"); exit(1); } if (*resolver_name == 0) { logger(proxy_context, LOG_ERR, "Resolver with an empty name"); return -1; } if (evutil_ascii_strcasecmp(resolver_name, proxy_context->resolver_name) != 0) { return 0; } provider_name = options_get_col(headers, headers_count, cols, cols_count, "Provider name"); provider_publickey_s = options_get_col(headers, headers_count, cols, cols_count, "Provider public key"); resolver_ip = options_get_col(headers, headers_count, cols, cols_count, "Resolver address"); if (provider_name == NULL || *provider_name == 0) { logger(proxy_context, LOG_ERR, "Resolvers list is missing a provider name for [%s]", resolver_name); return -1; } if (provider_publickey_s == NULL || *provider_publickey_s == 0) { logger(proxy_context, LOG_ERR, "Resolvers list is missing a public key for [%s]", resolver_name); return -1; } if (resolver_ip == NULL || *resolver_ip == 0) { logger(proxy_context, LOG_ERR, "Resolvers list is missing a resolver address for [%s]", resolver_name); return -1; } dnssec = options_get_col(headers, headers_count, cols, cols_count, "DNSSEC validation"); if (dnssec != NULL && evutil_ascii_strcasecmp(dnssec, "yes") != 0) { logger(proxy_context, LOG_INFO, "- [%s] does not support DNS Security Extensions", resolver_name); } else { logger(proxy_context, LOG_INFO, "+ DNS Security Extensions are supported"); } namecoin = options_get_col(headers, headers_count, cols, cols_count, "Namecoin"); if (namecoin != NULL && evutil_ascii_strcasecmp(namecoin, "yes") == 0) { logger(proxy_context, LOG_INFO, "+ Namecoin domains can be resolved"); } nologs = options_get_col(headers, headers_count, cols, cols_count, "No logs"); if (nologs != NULL && evutil_ascii_strcasecmp(nologs, "no") == 0) { logger(proxy_context, LOG_WARNING, "- [%s] logs your activity - " "a different provider might be better a choice if privacy is a concern", resolver_name); } else { logger(proxy_context, LOG_INFO, "+ Provider supposedly doesn't keep logs"); } proxy_context->provider_name = strdup(provider_name); proxy_context->provider_publickey_s = strdup(provider_publickey_s); if (proxy_context->resolver_ip == NULL) { proxy_context->resolver_ip = strdup(resolver_ip); } else { logger(proxy_context, LOG_INFO, "Resolver address forced to [%s]", proxy_context->resolver_ip); } if (proxy_context->provider_name == NULL || proxy_context->provider_publickey_s == NULL || proxy_context->resolver_ip == NULL) { logger_noformat(proxy_context, LOG_EMERG, "Out of memory"); exit(1); } return 1; } static int options_pick_random_resolver(ProxyContext * const proxy_context, const char *buf_) { char *buf; char *buf_local; char *cols[OPTIONS_RESOLVERS_LIST_MAX_COLS]; char *headers[OPTIONS_RESOLVERS_LIST_MAX_COLS]; size_t cols_count; size_t headers_count; uint32_t candidate_count = 0U; if ((buf_local = strdup(buf_)) == NULL) { return -1; } buf = minicsv_parse_line(buf_local, headers, &headers_count, sizeof headers / sizeof headers[0]); if (headers_count < 4U || headers_count > OPTIONS_RESOLVERS_LIST_MAX_COLS) { free(buf_local); return -1; } do { buf = minicsv_parse_line(buf, cols, &cols_count, sizeof cols / sizeof cols[0]); if (cols_count < 4U || cols_count > OPTIONS_RESOLVERS_LIST_MAX_COLS) { continue; } minicsv_trim_cols(cols, cols_count); if (*cols[0] == 0 || *cols[0] == '#') { continue; } if (options_parse_candidate(proxy_context, headers, headers_count, cols, cols_count, &candidate_count) < 0) { free(buf_local); return -1; } } while (*buf != 0); free(buf_local); return 0; } static int options_parse_resolvers_list(ProxyContext * const proxy_context, char *buf) { char *cols[OPTIONS_RESOLVERS_LIST_MAX_COLS]; char *headers[OPTIONS_RESOLVERS_LIST_MAX_COLS]; size_t cols_count; size_t headers_count; assert(proxy_context->resolver_name != NULL); buf = minicsv_parse_line(buf, headers, &headers_count, sizeof headers / sizeof headers[0]); if (headers_count < 4U || headers_count > OPTIONS_RESOLVERS_LIST_MAX_COLS) { return -1; } do { buf = minicsv_parse_line(buf, cols, &cols_count, sizeof cols / sizeof cols[0]); if (cols_count < 4U || cols_count > OPTIONS_RESOLVERS_LIST_MAX_COLS) { continue; } minicsv_trim_cols(cols, cols_count); if (*cols[0] == 0 || *cols[0] == '#') { continue; } if (options_parse_resolver(proxy_context, headers, headers_count, cols, cols_count) > 0) { return 0; } } while (*buf != 0); return -1; } static int options_use_resolver_name(ProxyContext * const proxy_context) { char *file_buf; char *resolvers_list_rebased; if ((resolvers_list_rebased = path_from_app_folder(proxy_context->resolvers_list)) == NULL) { logger_noformat(proxy_context, LOG_EMERG, "Out of memory"); exit(1); } file_buf = options_read_file(resolvers_list_rebased); if (file_buf == NULL) { logger(proxy_context, LOG_ERR, "Unable to read [%s]", resolvers_list_rebased); exit(1); } if (evutil_ascii_strcasecmp(proxy_context->resolver_name, OPTIONS_RESOLVERS_RANDOM) == 0) { free((void *) proxy_context->resolver_name); proxy_context->resolver_name = NULL; options_pick_random_resolver(proxy_context, file_buf); if (proxy_context->resolver_name == NULL) { logger_noformat(proxy_context, LOG_ERR, "No suitable candidates found for a random selection"); exit(1); } logger(proxy_context, LOG_INFO, "Randomly chosen resolver: [%s]", proxy_context->resolver_name); } assert(proxy_context->resolver_name != NULL); if (options_parse_resolvers_list(proxy_context, file_buf) < 0) { logger(proxy_context, LOG_ERR, "No resolver named [%s] found in the [%s] list", proxy_context->resolver_name, resolvers_list_rebased); exit(1); } free(file_buf); free(resolvers_list_rebased); return 0; } static int options_use_client_key_file(ProxyContext * const proxy_context) { unsigned char *key; char *key_s; const size_t header_len = (sizeof OPTIONS_CLIENT_KEY_HEADER) - 1U; size_t key_s_len; if ((key_s = options_read_file(proxy_context->client_key_file)) == NULL) { logger_error(proxy_context, "Unable to read the client key file"); return -1; } if ((key = sodium_malloc(header_len + crypto_box_SECRETKEYBYTES)) == NULL) { logger_noformat(proxy_context, LOG_EMERG, "Out of memory"); free(key_s); return -1; } if (sodium_hex2bin(key, header_len + crypto_box_SECRETKEYBYTES, key_s, strlen(key_s), ": -", &key_s_len, NULL) != 0 || key_s_len < (header_len + crypto_box_SECRETKEYBYTES) || memcmp(key, OPTIONS_CLIENT_KEY_HEADER, header_len) != 0) { logger_noformat(proxy_context, LOG_ERR, "The client key file doesn't seem to contain a supported key format"); sodium_free(key); free(key_s); return -1; } sodium_memzero(key_s, strlen(key_s)); free(key_s); assert(sizeof proxy_context->dnscrypt_client.secretkey <= key_s_len - header_len); memcpy(proxy_context->dnscrypt_client.secretkey, key + header_len, sizeof proxy_context->dnscrypt_client.secretkey); sodium_free(key); return 0; } static int options_apply(ProxyContext * const proxy_context) { if (proxy_context->client_key_file != NULL) { if (proxy_context->ephemeral_keys != 0) { logger_noformat(proxy_context, LOG_ERR, "--client-key and --ephemeral-keys are mutually exclusive"); exit(1); } if (options_use_client_key_file(proxy_context) != 0) { logger(proxy_context, LOG_ERR, "Client key file [%s] could not be used", proxy_context->client_key_file); exit(1); } } if (proxy_context->resolver_name != NULL) { if (proxy_context->resolvers_list == NULL) { logger_noformat(proxy_context, LOG_ERR, "Resolvers list (-L command-line switch) required"); exit(1); } if (options_use_resolver_name(proxy_context) != 0) { logger(proxy_context, LOG_ERR, "Resolver name (-R command-line switch) required. " "See [%s] for a list of public resolvers.", proxy_context->resolvers_list); exit(1); } } if (proxy_context->resolver_ip == NULL || *proxy_context->resolver_ip == 0 || proxy_context->provider_name == NULL || *proxy_context->provider_name == 0 || proxy_context->provider_publickey_s == NULL || *proxy_context->provider_publickey_s == 0) { logger_noformat(proxy_context, LOG_ERR, "Error: no resolver name given, no configuration file either."); logger_noformat(proxy_context, LOG_ERR, "The easiest way to get started is to edit the example configuration file"); logger_noformat(proxy_context, LOG_ERR, "and to append the full path to that file to the dnscrypt-proxy command."); logger_noformat(proxy_context, LOG_ERR, "Example: dnscrypt-proxy /usr/local/etc/dnscrypt-proxy.conf"); logger(proxy_context, LOG_ERR, "The local list of public resolvers is loaded from: [%s]", proxy_context->resolvers_list); logger_noformat(proxy_context, LOG_ERR, "Consult https://dnscrypt.org for more information about dnscrypt-proxy."); exit(1); } if (proxy_context->provider_name == NULL || *proxy_context->provider_name == 0) { logger_noformat(proxy_context, LOG_ERR, "Provider name required"); exit(1); } if (options_check_protocol_versions(proxy_context->provider_name) != 0) { logger_noformat(proxy_context, LOG_ERR, "Unsupported server protocol version"); exit(1); } if (proxy_context->provider_publickey_s == NULL) { logger_noformat(proxy_context, LOG_ERR, "Provider key required"); exit(1); } if (dnscrypt_fingerprint_to_key(proxy_context->provider_publickey_s, proxy_context->provider_publickey) != 0) { logger_noformat(proxy_context, LOG_ERR, "Invalid provider key"); exit(1); } if (proxy_context->daemonize != 0) { if (proxy_context->log_file == NULL) { proxy_context->syslog = 1; } do_daemonize(); } #ifndef _WIN32 if (proxy_context->pid_file != NULL && pid_file_create(proxy_context->pid_file, proxy_context->user_id != (uid_t) 0) != 0) { logger_error(proxy_context, "Unable to create pid file"); exit(1); } #endif if (proxy_context->log_file != NULL && proxy_context->syslog != 0) { logger_noformat(proxy_context, LOG_ERR, "--logfile and --syslog are mutually exclusive"); exit(1); } if (proxy_context->log_file != NULL && (proxy_context->log_fp = fopen(proxy_context->log_file, "a")) == NULL) { logger_error(proxy_context, "Unable to open log file"); exit(1); } if (proxy_context->syslog != 0) { assert(proxy_context->log_fp == NULL); logger_open_syslog(proxy_context); } return 0; } static SimpleConfSpecialHandlerResult simpleconf_special_handler(void **output, const char *arg, void *user_data) { char *file_name; if ((file_name = strdup(arg)) == NULL) { logger((ProxyContext *) user_data, LOG_EMERG, "Out of memory"); exit(1); } *output = (void *) file_name; return SC_SPECIAL_HANDLER_RESULT_INCLUDE; } int options_parse(AppContext * const app_context, ProxyContext * const proxy_context, int *argc_p, char ***argv_p) { SimpleConfConfig simpleconf_config = { proxy_context, simpleconf_special_handler }; const char *service_config_file = NULL; int opt_flag; int option_index = 0; #ifdef _WIN32 _Bool option_install = 0; #endif options_init_with_default(app_context, proxy_context); if (*argc_p == 2 && *(*argv_p)[1] != '-') { if (sc_build_command_line_from_file((*argv_p)[1], &simpleconf_config, simpleconf_options, (sizeof simpleconf_options) / (sizeof simpleconf_options[0]), *(argv_p)[0], argc_p, argv_p) != 0) { logger_noformat(proxy_context, LOG_ERR, "Unable to read the configuration file"); return -1; } app_context->allocated_args = 1; } while ((opt_flag = getopt_long(*argc_p, *argv_p, getopt_options, getopt_long_options, &option_index)) != -1) { switch (opt_flag) { case 'a': proxy_context->local_ip = optarg; break; case 'd': proxy_context->daemonize = 1; break; case 'e': { char *endptr; const unsigned long edns_payload_size = strtoul(optarg, &endptr, 10); if (*optarg == 0 || *endptr != 0 || edns_payload_size > DNS_MAX_PACKET_SIZE_UDP_RECV) { logger(proxy_context, LOG_ERR, "Invalid EDNS payload size: [%s]", optarg); exit(1); } if (edns_payload_size <= DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND) { proxy_context->edns_payload_size = (size_t) 0U; proxy_context->udp_max_size = DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND; } else { proxy_context->edns_payload_size = (size_t) edns_payload_size; assert(proxy_context->udp_max_size >= DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND); if (proxy_context->edns_payload_size > DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND) { proxy_context->udp_max_size = proxy_context->edns_payload_size; } } break; } case 'E': proxy_context->ephemeral_keys = 1; break; case 'h': options_usage(); exit(0); case 'I': proxy_context->ignore_timestamps = 1; break; case 'k': free((void *) proxy_context->provider_publickey_s); proxy_context->provider_publickey_s = strdup(optarg); break; case 'K': proxy_context->client_key_file = optarg; break; case 'l': proxy_context->log_file = optarg; break; case 'L': proxy_context->resolvers_list = optarg; break; case 'R': free((void *) proxy_context->resolver_name); proxy_context->resolver_name = strdup(optarg); break; #ifndef _WIN32 case 'S': proxy_context->syslog = 1; break; case 'Z': proxy_context->syslog_prefix = optarg; break; #endif case 'm': { char *endptr; const long max_log_level = strtol(optarg, &endptr, 10); if (*optarg == 0 || *endptr != 0 || max_log_level < 0) { logger(proxy_context, LOG_ERR, "Invalid max log level: [%s]", optarg); exit(1); } proxy_context->max_log_level = max_log_level; break; } case 'n': { char *endptr; const unsigned long connections_count_max = strtoul(optarg, &endptr, 10); if (*optarg == 0 || *endptr != 0 || connections_count_max <= 0U || connections_count_max > UINT_MAX) { logger(proxy_context, LOG_ERR, "Invalid max number of active request: [%s]", optarg); exit(1); } proxy_context->connections_count_max = (unsigned int) connections_count_max; break; } case 'p': proxy_context->pid_file = optarg; break; case 'r': free((void *) proxy_context->resolver_ip); proxy_context->resolver_ip = strdup(optarg); break; case 't': { char *endptr; const unsigned long margin = strtoul(optarg, &endptr, 10); if (*optarg == 0 || *endptr != 0 || margin > UINT32_MAX / 60U) { logger(proxy_context, LOG_ERR, "Invalid certificate grace period: [%s]", optarg); exit(1); } proxy_context->test_cert_margin = (time_t) margin * (time_t) 60U; proxy_context->test_only = 1; break; } #ifdef HAVE_GETPWNAM case 'u': { const struct passwd * const pw = getpwnam(optarg); if (pw == NULL) { logger(proxy_context, LOG_ERR, "Unknown user: [%s]", optarg); exit(1); } free((void *) proxy_context->user_name); proxy_context->user_name = strdup(pw->pw_name); proxy_context->user_id = pw->pw_uid; proxy_context->user_group = pw->pw_gid; free((void *) proxy_context->user_dir); proxy_context->user_dir = strdup(pw->pw_dir); break; } #endif case 'N': free((void *) proxy_context->provider_name); proxy_context->provider_name = strdup(optarg); break; case 'T': proxy_context->tcp_only = 1; break; case 'V': options_version(); exit(0); case 'X': #ifndef PLUGINS logger_noformat(proxy_context, LOG_ERR, "Support for plugins hasn't been compiled in"); exit(1); #else if (plugin_options_parse_str (proxy_context->app_context->dcps_context, optarg) != 0) { logger_noformat(proxy_context, LOG_ERR, "Error while parsing plugin options"); exit(2); } #endif break; #ifdef _WIN32 case WIN_OPTION_INSTALL: case WIN_OPTION_REINSTALL: option_install = 1; break; case WIN_OPTION_INSTALL_WITH_CONFIG_FILE: case WIN_OPTION_REINSTALL_WITH_CONFIG_FILE: option_install = 1; service_config_file = optarg; break; case WIN_OPTION_UNINSTALL: if (windows_service_uninstall() != 0) { logger_noformat(NULL, LOG_ERR, "Unable to uninstall the service"); exit(1); } else { logger(NULL, LOG_INFO, "The [%s] service has been removed from this system", get_windows_service_name()); exit(0); } break; case WIN_OPTION_SERVICE_NAME: break; #endif default: options_usage(); exit(1); } } if (service_config_file == NULL && options_apply(proxy_context) != 0) { return -1; } #ifdef _WIN32 if (option_install != 0) { int ret; if (service_config_file != NULL) { ret = windows_service_install_with_config_file(proxy_context, service_config_file); } else { ret = windows_service_install(proxy_context); } if (ret != 0) { logger_noformat(NULL, LOG_ERR, "Unable to install the service"); logger_noformat(NULL, LOG_ERR, "Make sure that you are using an elevated command prompt " "and that the service hasn't been already installed"); exit(1); } logger(NULL, LOG_INFO, "The [%s] service has been installed and started", get_windows_service_name()); logger(NULL, LOG_INFO, "The registry key used for this " "service is [%s]", windows_service_registry_parameters_key()); if (service_config_file == NULL) { logger(NULL, LOG_INFO, "Now, change your resolver settings to %s", proxy_context->local_ip); } else { logger_noformat(NULL, LOG_INFO, "Now, change your resolver settings"); } exit(0); } #endif return 0; } void options_free(ProxyContext * const proxy_context) { (void) proxy_context; #ifndef _WIN32 free(proxy_context->user_name); proxy_context->user_name = NULL; free(proxy_context->user_dir); proxy_context->user_dir = NULL; #endif free((void *) proxy_context->resolver_name); proxy_context->resolver_name = NULL; free((void *) proxy_context->provider_name); proxy_context->provider_name = NULL; free((void *) proxy_context->provider_publickey_s); proxy_context->provider_publickey_s = NULL; free((void *) proxy_context->resolver_ip); proxy_context->resolver_ip = NULL; } dnscrypt-proxy-1.9.4/src/proxy/options.h000644 000765 000024 00000000567 13040501142 017760 0ustar00jstaff000000 000000 #ifndef __OPTIONS_H__ #define __OPTIONS_H__ 1 int options_parse(AppContext * const app_context, ProxyContext * const proxy_context, int *argc_p, char ***argv_p); void options_free(ProxyContext * const proxy_context); #define OPTIONS_RESOLVERS_LIST_MAX_COLS 50 #define OPTIONS_RESOLVERS_RANDOM "random" #define OPTIONS_CLIENT_KEY_HEADER "\01\01" #endif dnscrypt-proxy-1.9.4/src/proxy/pathnames.h000644 000765 000024 00000000254 13037731714 020256 0ustar00jstaff000000 000000 #ifndef __PATHNAMES_H__ #define __PATHNAMES_H__ 1 #ifdef HAVE_PATHS_H # include #endif #ifndef _PATH_DEVNULL # define _PATH_DEVNULL "/dev/null" #endif #endif dnscrypt-proxy-1.9.4/src/proxy/pid_file.c000644 000765 000024 00000006576 13037731714 020061 0ustar00jstaff000000 000000 #include #include #ifndef _WIN32 # include #endif #include #include #include #include #include #include #include #include "logger.h" #include "pid_file.h" #include "safe_rw.h" #include "sandboxes.h" #include "utils.h" #ifndef _WIN32 static volatile sig_atomic_t exit_requested; static pid_t _child = (pid_t) -1; static const char *_pid_file; static void pid_file_remove_pid_file(void) { if (_pid_file != NULL) { unlink(_pid_file); _pid_file = NULL; } } static void pid_file_wait_for_app(void) { if (_child != (pid_t) -1) { while (waitpid(_child, NULL, 0) > (pid_t) 0); _child = (pid_t) -1; } pid_file_remove_pid_file(); } static void pid_file_parent_sig_exit_handler(int sig) { (void) sig; if (exit_requested) { return; } exit_requested = 1; if (_child != (pid_t) -1) { kill(SIGTERM, _child); } } static void pid_file_sig_exit_handler(int sig) { (void) sig; if (exit_requested) { return; } exit_requested = 1; exit(0); } static void pid_file_atexit_handler(void) { pid_file_remove_pid_file(); } static void pid_file_install_signal_handlers(void (*handler) (int)) { signal(SIGPIPE, SIG_IGN); signal(SIGALRM, handler); signal(SIGHUP , handler); signal(SIGINT, handler); signal(SIGQUIT, handler); signal(SIGTERM, handler); #ifdef SIGXCPU signal(SIGXCPU, handler); #endif } static int pid_file_write(const int fd, const pid_t child) { char pid_buf[50U]; int pid_buf_len; pid_buf_len = evutil_snprintf(pid_buf, sizeof pid_buf, "%llu", (unsigned long long) child); assert((size_t) pid_buf_len < sizeof pid_buf); if (safe_write(fd, pid_buf, (size_t) pid_buf_len, -1) != (ssize_t) pid_buf_len) { (void) ftruncate(fd, (off_t) 0); (void) close(fd); return -1; } return close(fd); } static void pid_file_write_and_wait_for_app(const int fd, const pid_t child) { _child = child; pid_file_write(fd, child); closedesc_all(1); pid_file_wait_for_app(); } static int pid_file_create_for_chroot(const int fd) { pid_t child; child = fork(); if (child == (pid_t) -1) { (void) close(fd); return -1; } if (child == (pid_t) 0) { (void) close(fd); return 0; } if (sandboxes_pidproc() != 0) { _exit(1); } pid_file_install_signal_handlers(pid_file_parent_sig_exit_handler); pid_file_write_and_wait_for_app(fd, child); _exit(0); /* NOTREACHED */ return -2; } int pid_file_create(const char * const pid_file, const _Bool will_chroot) { int fd; _pid_file = pid_file; if ((fd = open(pid_file, O_CREAT | O_TRUNC | O_WRONLY, 0644)) == -1) { return -1; } if (will_chroot != 0) { return pid_file_create_for_chroot(fd); } atexit(pid_file_atexit_handler); pid_file_install_signal_handlers(pid_file_sig_exit_handler); if (pid_file_write(fd, getpid()) != 0) { _pid_file = NULL; unlink(pid_file); return -1; } return 0; } #else /* _WIN32 */ int pid_file_create(const char * const pid_file, const _Bool will_chroot) { (void) pid_file; (void) will_chroot; return 0; } #endif dnscrypt-proxy-1.9.4/src/proxy/pid_file.h000644 000765 000024 00000000205 13037731714 020045 0ustar00jstaff000000 000000 #ifndef __PID_FILE_H__ #define __PID_FILE_H__ 1 int pid_file_create(const char * const pid_file, const _Bool will_chroot); #endif dnscrypt-proxy-1.9.4/src/proxy/plugin_options.c000644 000765 000024 00000001671 13037731714 021346 0ustar00jstaff000000 000000 #include #include #include #include #include #include #include "plugin_options.h" #include "plugin_support.h" int plugin_options_parse_str(DCPluginSupportContext * const dcps_context, char * const str) { DCPluginSupport *dcps = NULL; char *arg; char *plugin_file; char *tmp; assert(dcps_context != NULL); assert(str != NULL); if (*(plugin_file = str) == 0) { return -1; } arg = str; while (arg != NULL) { if ((tmp = strchr(arg, ',')) != NULL) { *tmp++ = 0; } if (dcps == NULL && (dcps = plugin_support_new(plugin_file)) == NULL) { return -1; } if (plugin_support_add_option(dcps, arg) != 0) { return -1; } arg = tmp; } return plugin_support_context_insert(dcps_context, dcps); } dnscrypt-proxy-1.9.4/src/proxy/plugin_options.h000644 000765 000024 00000000326 13037731714 021347 0ustar00jstaff000000 000000 #ifndef __PLUGIN_OPTIONS_H__ #define __PLUGIN_OPTIONS_H__ 1 #include "plugin_support.h" int plugin_options_parse_str(DCPluginSupportContext *dpcs_context, char * const str); #endif dnscrypt-proxy-1.9.4/src/proxy/plugin_support.c000644 000765 000024 00000030404 13037731714 021363 0ustar00jstaff000000 000000 #include #include #ifndef _WIN32 # include #endif #include #include #include #include #include #include #include #ifndef _WIN32 # include #endif #include #include #include "logger.h" #include "plugin_support.h" #include "plugin_support_p.h" #include "queue.h" #include "utils.h" int plugin_support_add_option(DCPluginSupport * const dcps, char * const arg) { char **argv; if (dcps->argc >= INT_MAX) { return -1; } if (SIZE_MAX / sizeof *argv <= (unsigned int) (dcps->argc + 2U) || (argv = realloc(dcps->argv, (unsigned int) (dcps->argc + 2U) * sizeof *argv)) == NULL) { return -1; } argv[dcps->argc++] = arg; argv[dcps->argc] = NULL; dcps->argv = argv; return 0; } static void * plugin_support_load_symbol(DCPluginSupport * const dcps, const char * const symbol) { assert(dcps->handle != NULL); return lt_dlsym(dcps->handle, symbol); } static void * plugin_support_load_symbol_err(DCPluginSupport * const dcps, const char * const symbol) { void *fn; if ((fn = plugin_support_load_symbol(dcps, symbol)) == NULL) { logger(NULL, LOG_ERR, "Plugin: symbol [%s] not found in [%s]", symbol, dcps->plugin_file); } return fn; } static const char * plugin_support_description(DCPluginSupport * const dcps) { DCPluginDescription dcplugin_description; const char *description; assert(dcps != NULL); if ((dcplugin_description = plugin_support_load_symbol(dcps, "dcplugin_description")) == NULL) { return NULL; } if ((description = dcplugin_description(dcps->plugin)) == NULL || *description == 0) { return NULL; } return description; } static int plugin_support_call_init(DCPluginSupport * const dcps) { DCPluginInit dcplugin_init; const char *description; if ((dcplugin_init = plugin_support_load_symbol_err(dcps, "dcplugin_init")) == NULL) { return -1; } assert(dcps->argc > 0 && dcps->argv != NULL); if (dcplugin_init(dcps->plugin, dcps->argc, dcps->argv) != 0) { logger(NULL, LOG_ERR, "Unable to initialize plugin [%s]", dcps->plugin_file); return -1; } dcps->sync_post_filter = plugin_support_load_symbol(dcps, "dcplugin_sync_post_filter"); dcps->sync_pre_filter = plugin_support_load_symbol(dcps, "dcplugin_sync_pre_filter"); if ((description = plugin_support_description(dcps)) == NULL) { logger_noformat(NULL, LOG_INFO, "Plugin loaded"); } else { logger(NULL, LOG_INFO, "Loaded plugin: [%s]", description); } return 0; } static int plugin_support_check_permissions(const char * const plugin_file) { assert(plugin_file != NULL); #ifndef _WIN32 struct stat st; if (stat(plugin_file, &st) != 0 || !S_ISREG(st.st_mode)) { return -1; } # ifndef RELAXED_PLUGINS_PERMISSIONS const uid_t uid = getuid(); if (st.st_uid != (uid_t) 0) { if (uid == (uid_t) 0) { errno = EPERM; return -1; } if (access(plugin_file, W_OK) != 0) { return -1; } } # endif #endif return 0; } static int plugin_support_load(DCPluginSupport * const dcps) { lt_dladvise advise; lt_dlhandle handle; assert(dcps != NULL && dcps->plugin_file != NULL); assert(dcps->handle == NULL); if (lt_dladvise_init(&advise) != 0) { return -1; } lt_dladvise_local(&advise); lt_dladvise_ext(&advise); logger(NULL, LOG_INFO, "Loading plugin [%s]", dcps->plugin_file); if (plugin_support_check_permissions(dcps->plugin_file) != 0) { logger(NULL, LOG_ERR, "Plugin [%s] can't be loaded: [%s]", dcps->plugin_file, strerror(errno)); lt_dladvise_destroy(&advise); return -1; } if ((handle = lt_dlopenadvise(dcps->plugin_file, advise)) == NULL) { logger(NULL, LOG_ERR, "Unable to load [%s]: [%s]", dcps->plugin_file, lt_dlerror()); lt_dladvise_destroy(&advise); return -1; } lt_dladvise_destroy(&advise); dcps->handle = handle; return plugin_support_call_init(dcps); } static int plugin_support_call_destroy(DCPluginSupport * const dcps) { DCPluginDestroy dcplugin_destroy; if (dcps->handle == NULL) { return 0; } dcplugin_destroy = plugin_support_load_symbol(dcps, "dcplugin_destroy"); if (dcplugin_destroy != NULL) { dcplugin_destroy(dcps->plugin); } return 0; } static int plugin_support_unload(DCPluginSupport * const dcps) { if (plugin_support_call_destroy(dcps) != 0) { return -1; } if (lt_dlclose(dcps->handle) != 0) { return -1; } dcps->handle = NULL; return 0; } static char * plugin_support_expand_plugin_file(const char * const plugin_file) { char *expanded_plugin_file; size_t plugin_file_len; size_t plugins_root_len = sizeof PLUGINS_ROOT - (size_t) 1U; size_t sizeof_expanded_plugin_file; #ifdef ENABLE_PLUGINS_ROOT if (strstr(plugin_file, "..") != NULL) { return NULL; } if (strncmp(plugin_file, PLUGINS_ROOT, plugins_root_len) == 0) { return strdup(plugin_file); } #elif !defined(_WIN32) if (*plugin_file == '/') { return strdup(plugin_file); } #endif #ifdef _WIN32 if ((expanded_plugin_file = path_from_app_folder(plugin_file)) == NULL) { logger_noformat(NULL, LOG_EMERG, "Out of memory"); exit(1); } (void) plugin_file_len; (void) sizeof_expanded_plugin_file; #else assert(PLUGINS_ROOT[plugins_root_len - (size_t) 1U] == '/'); plugin_file_len = strlen(plugin_file); assert(SIZE_MAX - plugins_root_len > plugin_file_len); sizeof_expanded_plugin_file = plugins_root_len + plugin_file_len + 1U; if ((expanded_plugin_file = malloc(sizeof_expanded_plugin_file)) == NULL) { return NULL; } memcpy(expanded_plugin_file, PLUGINS_ROOT, plugins_root_len); memcpy(expanded_plugin_file + plugins_root_len, plugin_file, plugin_file_len + 1U); #endif return expanded_plugin_file; } DCPluginSupport * plugin_support_new(const char * const plugin_file) { DCPluginSupport *dcps; if ((dcps = calloc((size_t) 1U, sizeof *dcps)) == NULL) { return NULL; } if ((dcps->plugin = calloc((size_t) 1U, sizeof *dcps->plugin)) == NULL) { free(dcps); return NULL; } assert(plugin_file != NULL && *plugin_file != 0); if ((dcps->plugin_file = plugin_support_expand_plugin_file(plugin_file)) == NULL) { free(dcps); return NULL; } dcps->argv = NULL; dcps->handle = NULL; dcps->sync_post_filter = NULL; dcps->sync_pre_filter = NULL; return dcps; } void plugin_support_free(DCPluginSupport * const dcps) { plugin_support_unload(dcps); assert(dcps->plugin_file != NULL && *dcps->plugin_file != 0); assert(dcps->plugin != NULL); free(dcps->plugin); free(dcps->plugin_file); dcps->plugin_file = NULL; free(dcps->argv); dcps->argv = NULL; free(dcps); } DCPluginSupportContext * plugin_support_context_new(void) { DCPluginSupportContext *dcps_context; if ((dcps_context = calloc((size_t) 1U, sizeof *dcps_context)) == NULL) { return NULL; } SLIST_INIT(&dcps_context->dcps_list); return dcps_context; } int plugin_support_context_insert(DCPluginSupportContext * const dcps_context, DCPluginSupport * const dcps) { assert(dcps_context != NULL); assert(dcps != NULL); SLIST_INSERT_HEAD(&dcps_context->dcps_list, dcps, next); return 0; } int plugin_support_context_remove(DCPluginSupportContext * const dcps_context, DCPluginSupport * const dcps) { assert(! SLIST_EMPTY(&dcps_context->dcps_list)); SLIST_REMOVE(&dcps_context->dcps_list, dcps, DCPluginSupport_, next); return 0; } int plugin_support_context_reload(DCPluginSupportContext * const dcps_context) { DCPluginSupport *dcps; DCPluginSupport *dcps_tmp; int ret = 0; int ret_ = 0; SLIST_FOREACH_SAFE(dcps, &dcps_context->dcps_list, next, dcps_tmp) { if ((ret_ = plugin_support_call_destroy(dcps)) == 0) { ret_ = plugin_support_call_init(dcps); } ret |= ret_; } return ret; } void plugin_support_context_free(DCPluginSupportContext * const dcps_context) { DCPluginSupport *dcps; DCPluginSupport *dcps_tmp; SLIST_FOREACH_SAFE(dcps, &dcps_context->dcps_list, next, dcps_tmp) { plugin_support_free(dcps); } if (dcps_context->lt_enabled != 0) { lt_dlexit(); } free(dcps_context); } int plugin_support_context_load(DCPluginSupportContext * const dcps_context) { DCPluginSupport *dcps; _Bool failed = 0; assert(dcps_context != NULL); if (dcps_context->lt_enabled == 0 && lt_dlinit() != 0) { return -1; } SLIST_FOREACH(dcps, &dcps_context->dcps_list, next) { if (plugin_support_load(dcps) != 0) { failed = 1; } } if (failed != 0) { return -1; } return 0; } static DCPluginSyncFilterResult plugin_support_context_get_result_from_dcps(DCPluginSyncFilterResult result, DCPluginSyncFilterResult result_dcps) { switch (result_dcps) { case DCP_SYNC_FILTER_RESULT_OK: break; case DCP_SYNC_FILTER_RESULT_DIRECT: if (result == DCP_SYNC_FILTER_RESULT_OK) { result = DCP_SYNC_FILTER_RESULT_DIRECT; } break; case DCP_SYNC_FILTER_RESULT_KILL: if (result == DCP_SYNC_FILTER_RESULT_OK) { result = DCP_SYNC_FILTER_RESULT_KILL; } break; case DCP_SYNC_FILTER_RESULT_ERROR: if (result != DCP_SYNC_FILTER_RESULT_FATAL) { result = DCP_SYNC_FILTER_RESULT_ERROR; } break; case DCP_SYNC_FILTER_RESULT_FATAL: default: result = DCP_SYNC_FILTER_RESULT_FATAL; } return result; } DCPluginSyncFilterResult plugin_support_context_apply_sync_post_filters(DCPluginSupportContext *dcps_context, DCPluginDNSPacket *dcp_packet) { DCPluginSupport *dcps; const size_t dns_packet_max_len = dcp_packet->dns_packet_max_len; DCPluginSyncFilterResult result = DCP_SYNC_FILTER_RESULT_OK; DCPluginSyncFilterResult result_dcps; assert(dcp_packet->dns_packet != NULL && dcp_packet->dns_packet_len_p != NULL && *dcp_packet->dns_packet_len_p > (size_t) 0U); SLIST_FOREACH(dcps, &dcps_context->dcps_list, next) { if (dcps->sync_post_filter != NULL) { result_dcps = dcps->sync_post_filter(dcps->plugin, dcp_packet); result = plugin_support_context_get_result_from_dcps(result, result_dcps); assert(*dcp_packet->dns_packet_len_p <= dns_packet_max_len); assert(*dcp_packet->dns_packet_len_p > (size_t) 0U); } } return result; } DCPluginSyncFilterResult plugin_support_context_apply_sync_pre_filters(DCPluginSupportContext *dcps_context, DCPluginDNSPacket *dcp_packet) { DCPluginSupport *dcps; const size_t dns_packet_max_len = dcp_packet->dns_packet_max_len; DCPluginSyncFilterResult result = DCP_SYNC_FILTER_RESULT_OK; DCPluginSyncFilterResult result_dcps; assert(dcp_packet->dns_packet != NULL && dcp_packet->dns_packet_len_p != NULL && *dcp_packet->dns_packet_len_p > (size_t) 0U); SLIST_FOREACH(dcps, &dcps_context->dcps_list, next) { if (dcps->sync_pre_filter != NULL) { result_dcps = dcps->sync_pre_filter(dcps->plugin, dcp_packet); result = plugin_support_context_get_result_from_dcps(result, result_dcps); } assert(*dcp_packet->dns_packet_len_p <= dns_packet_max_len); assert(*dcp_packet->dns_packet_len_p > (size_t) 0U); } return result; } dnscrypt-proxy-1.9.4/src/proxy/plugin_support.h000644 000765 000024 00000002567 13037731714 021401 0ustar00jstaff000000 000000 #ifndef __PLUGIN_SUPPORT_H__ #define __PLUGIN_SUPPORT_H__ 1 #include #include "queue.h" typedef struct DCPluginSupportContext_ DCPluginSupportContext; typedef struct DCPluginSupport_ DCPluginSupport; DCPluginSupportContext *plugin_support_context_new(void); void plugin_support_context_free(DCPluginSupportContext * const dcps_context); int plugin_support_context_insert(DCPluginSupportContext * const dcps_context, DCPluginSupport * const dcps); int plugin_support_context_remove(DCPluginSupportContext * const dcps_context, DCPluginSupport * const dcps); int plugin_support_context_reload(DCPluginSupportContext * const dcps_context); DCPluginSupport * plugin_support_new(const char * const plugin_file); void plugin_support_free(DCPluginSupport *dcps); int plugin_support_add_option(DCPluginSupport * const dcps, char * const arg); int plugin_support_context_load(DCPluginSupportContext * const dcps_context); DCPluginSyncFilterResult plugin_support_context_apply_sync_post_filters(DCPluginSupportContext *dcps_context, DCPluginDNSPacket *dcp_packet); DCPluginSyncFilterResult plugin_support_context_apply_sync_pre_filters(DCPluginSupportContext *dcps_context, DCPluginDNSPacket *dcp_packet); #endif dnscrypt-proxy-1.9.4/src/proxy/plugin_support_p.h000644 000765 000024 00000001614 13037731714 021710 0ustar00jstaff000000 000000 #ifndef __PLUGIN_SUPPORT_P_H__ #define __PLUGIN_SUPPORT_P_H__ 1 #include #include #include "queue.h" typedef int (*DCPluginInit)(DCPlugin * const dcplugin, int argc, char *argv[]); typedef int (*DCPluginDestroy)(DCPlugin * const dcplugin); typedef const char *(*DCPluginDescription)(DCPlugin * const dcplugin); typedef DCPluginSyncFilterResult (*DCPluginSyncFilter) (DCPlugin * const dcplugin, DCPluginDNSPacket *dcp_packet); struct DCPluginSupport_ { SLIST_ENTRY(DCPluginSupport_) next; DCPluginSyncFilter sync_post_filter; DCPluginSyncFilter sync_pre_filter; lt_dlhandle handle; DCPlugin *plugin; char *plugin_file; char **argv; int argc; }; struct DCPluginSupportContext_ { SLIST_HEAD(DCPluginSupportList_, DCPluginSupport_) dcps_list; _Bool lt_enabled; }; #endif dnscrypt-proxy-1.9.4/src/proxy/probes_dnscrypt_proxy.d000644 000765 000024 00000004206 13037731714 022754 0ustar00jstaff000000 000000 provider dnscrypt_proxy { probe certs__update__start(); probe certs__update__received(); probe certs__update__error__communication(); probe certs__update__error__security(); probe certs__update__error__nocerts(); probe certs__update__retry(); probe certs__update__done(unsigned char[32]); probe request__udp__start(void *); probe request__udp__replied(void *); probe request__udp__truncated(void *); probe request__udp__overloaded(); probe request__udp__network_error(void *); probe request__udp__done(void *); probe request__udp__proxy_resolver__start(void *); probe request__udp__proxy_resolver__replied(void *); probe request__udp__proxy_resolver__got_invalid_reply(void *); probe request__udp__proxy_resolver__done(void *); probe request__udp__retry_scheduled(void *, unsigned char); probe request__udp__retry(void *, unsigned char); probe request__udp__timeout(void *); probe request__tcp__start(void *); probe request__tcp__replied(void *); probe request__tcp__overloaded(); probe request__tcp__network_error(void *); probe request__tcp__done(void *); probe request__tcp__proxy_resolver__start(void *); probe request__tcp__proxy_resolver__connected(void *); probe request__tcp__proxy_resolver__replied(void *); probe request__tcp__proxy_resolver__got_invalid_reply(void *); probe request__tcp__proxy_resolver__network_error(void *); probe request__tcp__proxy_resolver__done(void *); probe request__tcp__timeout(void *); probe request__curve_start(void *, size_t); probe request__curve_error(void *); probe request__curve_done(void *, size_t); probe request__uncurve_start(void *, size_t); probe request__uncurve_error(void *); probe request__uncurve_done(void *, size_t); probe request__plugins__pre__start(void *, size_t, size_t); probe request__plugins__pre__error(void *, int); probe request__plugins__pre__done(void *, size_t, size_t); probe request__plugins__post__start(void *, size_t, size_t); probe request__plugins__post__error(void *, int); probe request__plugins__post__done(void *, size_t, size_t); probe status__requests__active(unsigned int, unsigned int); }; dnscrypt-proxy-1.9.4/src/proxy/probes_no_dtrace.h000644 000765 000024 00000014415 13037731714 021612 0ustar00jstaff000000 000000 #ifndef __PROBES_NO_DTRACE_H__ # define __PROBES_NO_DTRACE_H__ 1 #define DNSCRYPT_PROXY_CERTS_UPDATE_DONE(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_COMMUNICATION() \ do { \ } while (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_COMMUNICATION_ENABLED() (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_NOCERTS() \ do { \ } while (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_NOCERTS_ENABLED() (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_SECURITY() \ do { \ } while (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_ERROR_SECURITY_ENABLED() (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_RECEIVED() \ do { \ } while (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_RECEIVED_ENABLED() (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_RETRY() \ do { \ } while (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_RETRY_ENABLED() (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_START() \ do { \ } while (0) #define DNSCRYPT_PROXY_CERTS_UPDATE_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_CURVE_DONE(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_CURVE_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_CURVE_ERROR(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_CURVE_ERROR_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_CURVE_START(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_CURVE_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_DONE(arg0, arg1, arg2) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_ERROR(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_ERROR_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_START(arg0, arg1, arg2) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_DONE(arg0, arg1, arg2) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_ERROR(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_ERROR_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_START(arg0, arg1, arg2) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_DONE(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_NETWORK_ERROR(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_NETWORK_ERROR_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_OVERLOADED() \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_OVERLOADED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_CONNECTED(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_CONNECTED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_DONE(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_GOT_INVALID_REPLY(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_GOT_INVALID_REPLY_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_NETWORK_ERROR(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_NETWORK_ERROR_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_REPLIED(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_REPLIED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_START(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_REPLIED(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_REPLIED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_START(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_TCP_TIMEOUT(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_TCP_TIMEOUT_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_DONE(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_NETWORK_ERROR(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_NETWORK_ERROR_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_OVERLOADED() \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_OVERLOADED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_DONE(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_GOT_INVALID_REPLY(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_GOT_INVALID_REPLY_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_REPLIED(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_REPLIED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_START(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_REPLIED(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_REPLIED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_RETRY(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_RETRY_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_RETRY_SCHEDULED(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_RETRY_SCHEDULED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_START(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_START_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_TIMEOUT(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_TIMEOUT_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UDP_TRUNCATED(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UDP_TRUNCATED_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UNCURVE_DONE(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UNCURVE_DONE_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UNCURVE_ERROR(arg0) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UNCURVE_ERROR_ENABLED() (0) #define DNSCRYPT_PROXY_REQUEST_UNCURVE_START(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_REQUEST_UNCURVE_START_ENABLED() (0) #define DNSCRYPT_PROXY_STATUS_REQUESTS_ACTIVE(arg0, arg1) \ do { \ } while (0) #define DNSCRYPT_PROXY_STATUS_REQUESTS_ACTIVE_ENABLED() (0) #endif dnscrypt-proxy-1.9.4/src/proxy/safe_rw.c000644 000765 000024 00000005005 13037731714 017716 0ustar00jstaff000000 000000 #include #include #include #include #include #ifndef _WIN32 # include #endif #include #include #ifndef SSIZE_MAX # define SSIZE_MAX (SIZE_MAX / 2 - 1) #endif #include "safe_rw.h" #ifndef _WIN32 ssize_t safe_write(const int fd, const void * const buf_, size_t count, const int timeout) { struct pollfd pfd; const char *buf = (const char *) buf_; ssize_t written; pfd.fd = fd; pfd.events = POLLOUT; assert(count <= SSIZE_MAX); while (count > (size_t) 0) { while ((written = write(fd, buf, count)) <= (ssize_t) 0) { if (errno == EAGAIN) { if (poll(&pfd, (nfds_t) 1, timeout) == 0) { errno = ETIMEDOUT; goto ret; } } else if (errno != EINTR) { goto ret; } } buf += written; count -= (size_t) written; } ret: return (ssize_t) (buf - (const char *) buf_); } ssize_t safe_read(const int fd, void * const buf_, size_t count) { unsigned char *buf = (unsigned char *) buf_; ssize_t readnb; assert(count <= SSIZE_MAX); do { while ((readnb = read(fd, buf, count)) < (ssize_t) 0 && errno == EINTR); if (readnb < (ssize_t) 0) { return readnb; } if (readnb == (ssize_t) 0) { break; } count -= (size_t) readnb; buf += readnb; } while (count > (ssize_t) 0); return (ssize_t) (buf - (unsigned char *) buf_); } ssize_t safe_read_partial(const int fd, void * const buf_, const size_t max_count) { unsigned char * const buf = (unsigned char *) buf_; ssize_t readnb; assert(max_count <= SSIZE_MAX); while ((readnb = read(fd, buf, max_count)) < (ssize_t) 0 && errno == EINTR); return readnb; } #else /* _WIN32 */ ssize_t safe_write(const int fd, const void * const buf_, size_t count, const int timeout) { assert(fd != -1); assert(buf_ != NULL); assert(count > (size_t) 0U); (void) timeout; return -1; } ssize_t safe_read(const int fd, void * const buf_, size_t count) { assert(fd != -1); assert(buf_ != NULL); assert(count > (size_t) 0U); return -1; } ssize_t safe_read_partial(const int fd, void * const buf_, const size_t max_count) { assert(fd != -1); assert(buf_ != NULL); assert(max_count > (size_t) 0U); return -1; } #endif dnscrypt-proxy-1.9.4/src/proxy/safe_rw.h000644 000765 000024 00000000561 13037731714 017725 0ustar00jstaff000000 000000 #ifndef __SAFE_RW_H__ #define __SAFE_RW_H__ 1 #include ssize_t safe_write(const int fd, const void * const buf_, size_t count, const int timeout); ssize_t safe_read(const int fd, void * const buf_, size_t count); ssize_t safe_read_partial(const int fd, void * const buf_, const size_t max_count); #endif dnscrypt-proxy-1.9.4/src/proxy/sandboxes.c000644 000765 000024 00000003152 13037731714 020257 0ustar00jstaff000000 000000 #include #ifndef _WIN32 # include # include # include #endif #ifdef HAVE_SANDBOX_H # pragma GCC diagnostic ignored "-Wdeprecated-declarations" # include #endif #include "sandboxes.h" int sandboxes_app(void) { return 0; } int sandboxes_pidproc(void) { #ifdef HAVE_SANDBOX_INIT char *errmsg; if (sandbox_init != NULL && sandbox_init(kSBXProfileNoNetwork, SANDBOX_NAMED, &errmsg) != 0) { return -1; } #endif return 0; } #if defined(SO_ATTACH_FILTER) && defined(HAVE_LINUX_FILTER_H) # include /* ldh [x + 4] jlt #25, fail ldh [x + 10] and #0xfc8f jne #0, fail ldh [x + 12] jneq #1, fail ld [x + 14] jneq #0, fail ldh [x + 18] jgt #1, fail ret #0x40000 fail: ret #0 */ int attach_udp_dnsq_bpf(int fd) { struct sock_filter code[] = { { 0x48, 0, 0, 0x00000004 }, { 0x35, 0, 10, 0x00000019 }, { 0x48, 0, 0, 0x0000000a }, { 0x54, 0, 0, 0x0000fc8f }, { 0x15, 0, 7, 0000000000 }, { 0x48, 0, 0, 0x0000000c }, { 0x15, 0, 5, 0x00000001 }, { 0x40, 0, 0, 0x0000000e }, { 0x15, 0, 3, 0000000000 }, { 0x48, 0, 0, 0x00000012 }, { 0x25, 1, 0, 0x00000001 }, { 0x06, 0, 0, 0x00040000 }, { 0x06, 0, 0, 0000000000 }, }; struct sock_fprog bpf = { .len = (sizeof code) / (sizeof code[0]), .filter = code }; return setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf, sizeof bpf); } #else int attach_udp_dnsq_bpf(int fd) { (void) fd; return -1; } #endif dnscrypt-proxy-1.9.4/src/proxy/sandboxes.h000644 000765 000024 00000000224 13037731714 020261 0ustar00jstaff000000 000000 #ifndef __SANDBOXES_H__ #define __SANDBOXES_H__ 1 int sandboxes_app(void); int sandboxes_pidproc(void); int attach_udp_dnsq_bpf(int fd); #endif dnscrypt-proxy-1.9.4/src/proxy/shims.h000644 000765 000024 00000034345 13040513000 017405 0ustar00jstaff000000 000000 /* Shims for ancient versions of libsodium */ #include #include #include /* * Debian Jessie ships an old version of libsodium that doesn't support * overlapping buffers. Use temporary buffers to work around this. */ #if SODIUM_LIBRARY_VERSION_MAJOR < 7 || (SODIUM_LIBRARY_VERSION_MAJOR == 7 && SODIUM_LIBRARY_VERSION_MINOR <= 2) # warning The installed libsodium version is very old and will not be supported in the future. # warning Support for the XChaCha20 cipher will also not be available in that build. static int crypto_box_easy_nooverlap(unsigned char *c, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *pk, const unsigned char *sk) { unsigned char tmp[65536]; if (crypto_box_MACBYTES + mlen > sizeof tmp) { return -1; } if (crypto_box_easy(tmp, m, mlen, n, pk, sk) != 0) { return -1; } memcpy(c, tmp, crypto_box_MACBYTES + mlen); return 0; } static int crypto_box_open_easy_nooverlap(unsigned char *m, const unsigned char *c, unsigned long long clen, const unsigned char *n, const unsigned char *pk, const unsigned char *sk) { unsigned char tmp[65536]; if (clen < crypto_box_MACBYTES || clen - crypto_box_MACBYTES > sizeof tmp) { return -1; } if (crypto_box_open_easy(tmp, c, clen, n, pk, sk) != 0) { return -1; } memcpy(m, tmp, clen - crypto_box_MACBYTES); return 0; } # define crypto_box_easy crypto_box_easy_nooverlap # define crypto_box_open_easy crypto_box_open_easy_nooverlap #endif #ifndef HAVE_CRYPTO_BOX_EASY_AFTERNM static int crypto_box_detached_afternm(unsigned char *c, unsigned char *mac, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *k) { unsigned char tmp[65536]; if (mlen > sizeof tmp) { return -1; } if (crypto_secretbox_detached(tmp, mac, m, mlen, n, k) != 0) { return -1; } memcpy(c, tmp, mlen); return 0; } static int crypto_box_easy_afternm(unsigned char *c, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *k) { if (mlen > SIZE_MAX - crypto_box_MACBYTES) { return -1; } return crypto_box_detached_afternm(c + crypto_box_MACBYTES, c, m, mlen, n, k); } static int crypto_box_open_detached_afternm(unsigned char *m, const unsigned char *c, const unsigned char *mac, unsigned long long clen, const unsigned char *n, const unsigned char *k) { unsigned char tmp[65536]; if (clen > sizeof tmp) { return -1; } if (crypto_secretbox_open_detached(tmp, c, mac, clen, n, k) != 0) { return -1; } memcpy(m, tmp, clen); return 0; } static int crypto_box_open_easy_afternm(unsigned char *m, const unsigned char *c, unsigned long long clen, const unsigned char *n, const unsigned char *k) { if (clen < crypto_box_MACBYTES) { return -1; } return crypto_box_open_detached_afternm(m, c + crypto_box_MACBYTES, c, clen - crypto_box_MACBYTES, n, k); } #endif #if defined(HAVE_CRYPTO_BOX_CURVE25519XCHACHA20POLY1305_OPEN_EASY_AFTERNM) # define HAVE_XCHACHA20 1 #elif defined(HAVE_CRYPTO_CORE_HCHACHA20) # define HAVE_XCHACHA20 1 # define crypto_secretbox_xchacha20poly1305_ZEROBYTES 32U # define crypto_secretbox_xchacha20poly1305_MACBYTES 16U # define crypto_box_curve25519xchacha20poly1305_MACBYTES 16U static int crypto_secretbox_xchacha20poly1305_detached(unsigned char *c, unsigned char *mac, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *k) { crypto_onetimeauth_poly1305_state state; unsigned char block0[64U]; unsigned char subkey[crypto_stream_chacha20_KEYBYTES]; unsigned long long i; unsigned long long mlen0; crypto_core_hchacha20(subkey, n, k, NULL); if (((uintptr_t) c >= (uintptr_t) m && (uintptr_t) c - (uintptr_t) m < mlen) || ((uintptr_t) m >= (uintptr_t) c && (uintptr_t) m - (uintptr_t) c < mlen)) { memmove(c, m, mlen); m = c; } memset(block0, 0U, crypto_secretbox_xchacha20poly1305_ZEROBYTES); (void) sizeof(int[64U >= crypto_secretbox_xchacha20poly1305_ZEROBYTES ? 1 : -1]); mlen0 = mlen; if (mlen0 > 64U - crypto_secretbox_xchacha20poly1305_ZEROBYTES) { mlen0 = 64U - crypto_secretbox_xchacha20poly1305_ZEROBYTES; } for (i = 0U; i < mlen0; i++) { block0[i + crypto_secretbox_xchacha20poly1305_ZEROBYTES] = m[i]; } crypto_stream_chacha20_xor(block0, block0, mlen0 + crypto_secretbox_xchacha20poly1305_ZEROBYTES, n + 16, subkey); (void) sizeof(int[crypto_secretbox_xchacha20poly1305_ZEROBYTES >= crypto_onetimeauth_poly1305_KEYBYTES ? 1 : -1]); crypto_onetimeauth_poly1305_init(&state, block0); for (i = 0U; i < mlen0; i++) { c[i] = block0[crypto_secretbox_xchacha20poly1305_ZEROBYTES + i]; } sodium_memzero(block0, sizeof block0); if (mlen > mlen0) { crypto_stream_chacha20_xor_ic(c + mlen0, m + mlen0, mlen - mlen0, n + 16, 1U, subkey); } sodium_memzero(subkey, sizeof subkey); crypto_onetimeauth_poly1305_update(&state, c, mlen); crypto_onetimeauth_poly1305_final(&state, mac); sodium_memzero(&state, sizeof state); return 0; } static int crypto_secretbox_xchacha20poly1305_open_detached(unsigned char *m, const unsigned char *c, const unsigned char *mac, unsigned long long clen, const unsigned char *n, const unsigned char *k) { unsigned char block0[64U]; unsigned char subkey[crypto_stream_chacha20_KEYBYTES]; unsigned long long i; unsigned long long mlen0; crypto_core_hchacha20(subkey, n, k, NULL); crypto_stream_chacha20(block0, crypto_stream_chacha20_KEYBYTES, n + 16, subkey); if (crypto_onetimeauth_poly1305_verify(mac, c, clen, block0) != 0) { sodium_memzero(subkey, sizeof subkey); return -1; } if (m == NULL) { return 0; } if (((uintptr_t) c >= (uintptr_t) m && (uintptr_t) c - (uintptr_t) m < clen) || ((uintptr_t) m >= (uintptr_t) c && (uintptr_t) m - (uintptr_t) c < clen)) { memmove(m, c, clen); c = m; } mlen0 = clen; if (mlen0 > 64U - crypto_secretbox_xchacha20poly1305_ZEROBYTES) { mlen0 = 64U - crypto_secretbox_xchacha20poly1305_ZEROBYTES; } for (i = 0U; i < mlen0; i++) { block0[crypto_secretbox_xchacha20poly1305_ZEROBYTES + i] = c[i]; } crypto_stream_chacha20_xor(block0, block0, crypto_secretbox_xchacha20poly1305_ZEROBYTES + mlen0, n + 16, subkey); for (i = 0U; i < mlen0; i++) { m[i] = block0[i + crypto_secretbox_xchacha20poly1305_ZEROBYTES]; } if (clen > mlen0) { crypto_stream_chacha20_xor_ic(m + mlen0, c + mlen0, clen - mlen0, n + 16, 1U, subkey); } sodium_memzero(subkey, sizeof subkey); return 0; } static int crypto_box_curve25519xchacha20poly1305_detached_afternm(unsigned char *c, unsigned char *mac, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *k) { return crypto_secretbox_xchacha20poly1305_detached(c, mac, m, mlen, n, k); } static int crypto_box_curve25519xchacha20poly1305_easy_afternm(unsigned char *c, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *k) { if (mlen > SIZE_MAX - crypto_box_curve25519xchacha20poly1305_MACBYTES) { return -1; } return crypto_box_curve25519xchacha20poly1305_detached_afternm( c + crypto_box_curve25519xchacha20poly1305_MACBYTES, c, m, mlen, n, k); } static int crypto_box_curve25519xchacha20poly1305_open_detached_afternm(unsigned char *m, const unsigned char *c, const unsigned char *mac, unsigned long long clen, const unsigned char *n, const unsigned char *k) { return crypto_secretbox_xchacha20poly1305_open_detached(m, c, mac, clen, n, k); } static int crypto_box_curve25519xchacha20poly1305_open_easy_afternm(unsigned char *m, const unsigned char *c, unsigned long long clen, const unsigned char *n, const unsigned char *k) { if (clen < crypto_box_curve25519xchacha20poly1305_MACBYTES) { return -1; } return crypto_box_curve25519xchacha20poly1305_open_detached_afternm( m, c + crypto_box_curve25519xchacha20poly1305_MACBYTES, c, clen - crypto_box_curve25519xchacha20poly1305_MACBYTES, n, k); } static int crypto_box_curve25519xchacha20poly1305_beforenm(unsigned char *k, const unsigned char *pk, const unsigned char *sk) { static const unsigned char n[16] = { 0 }; unsigned char s[32]; if (crypto_scalarmult_curve25519(s, sk, pk) != 0) { return -1; } return crypto_core_hchacha20(k, n, s, NULL); } static int crypto_box_curve25519xchacha20poly1305_detached(unsigned char *c, unsigned char *mac, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *pk, const unsigned char *sk) { unsigned char k[crypto_box_BEFORENMBYTES]; int ret; (void) sizeof(int[crypto_box_BEFORENMBYTES >= crypto_secretbox_KEYBYTES ? 1 : -1]); if (crypto_box_curve25519xchacha20poly1305_beforenm(k, pk, sk) != 0) { return -1; } ret = crypto_box_curve25519xchacha20poly1305_detached_afternm(c, mac, m, mlen, n, k); sodium_memzero(k, sizeof k); return ret; } static int crypto_box_curve25519xchacha20poly1305_easy(unsigned char *c, const unsigned char *m, unsigned long long mlen, const unsigned char *n, const unsigned char *pk, const unsigned char *sk) { if (mlen > SIZE_MAX - crypto_box_curve25519xchacha20poly1305_MACBYTES) { return -1; } return crypto_box_curve25519xchacha20poly1305_detached( c + crypto_box_curve25519xchacha20poly1305_MACBYTES, c, m, mlen, n, pk, sk); } static int crypto_box_curve25519xchacha20poly1305_open_detached(unsigned char *m, const unsigned char *c, const unsigned char *mac, unsigned long long clen, const unsigned char *n, const unsigned char *pk, const unsigned char *sk) { unsigned char k[crypto_box_BEFORENMBYTES]; int ret; if (crypto_box_curve25519xchacha20poly1305_beforenm(k, pk, sk) != 0) { return -1; } ret = crypto_box_curve25519xchacha20poly1305_open_detached_afternm( m, c, mac, clen, n, k); sodium_memzero(k, sizeof k); return ret; } static int crypto_box_curve25519xchacha20poly1305_open_easy(unsigned char *m, const unsigned char *c, unsigned long long clen, const unsigned char *n, const unsigned char *pk, const unsigned char *sk) { if (clen < crypto_box_curve25519xchacha20poly1305_MACBYTES) { return -1; } return crypto_box_curve25519xchacha20poly1305_open_detached( m, c + crypto_box_curve25519xchacha20poly1305_MACBYTES, c, clen - crypto_box_curve25519xchacha20poly1305_MACBYTES, n, pk, sk); } #endif dnscrypt-proxy-1.9.4/src/proxy/simpleconf.c000644 000765 000024 00000051372 13037731714 020437 0ustar00jstaff000000 000000 #include #include #include #include #include #include #include "simpleconf.h" #ifndef SC_MAX_ARG_LENGTH # define SC_MAX_ARG_LENGTH 65536 #endif #ifndef SC_MAX_RECURSION # define SC_MAX_RECURSION 16 #endif typedef enum State_ { STATE_UNDEFINED, STATE_PROPNAME, STATE_AFTERPROPNAME, STATE_AFTERPROPNAME2, STATE_AFTERPROPNAMESEP, STATE_RCHAR, STATE_MATCH_ALPHA, STATE_MATCH_ALNUM, STATE_MATCH_DIGITS, STATE_MATCH_XDIGITS, STATE_MATCH_NOSPACE, STATE_MATCH_ANY, STATE_MATCH_ANY_WITHINQUOTES, STATE_MATCH_ANY_AFTERQUOTES, STATE_MATCH_ANY_WITHOUTQUOTES, STATE_MATCH_ANY_UNQUOTED, STATE_MATCH_SPACES, STATE_MATCH_BOOLEAN, STATE_TEMPLATE_UNDEFINED, STATE_TEMPLATE_RCHAR, STATE_TEMPLATE_SUBST_ESC } State; typedef struct Match_ { const char *str; size_t str_len; } Match; typedef enum EntryResult_ { ENTRYRESULT_UNDEFINED, ENTRYRESULT_OK, ENTRYRESULT_IGNORE, ENTRYRESULT_PROPNOTFOUND, ENTRYRESULT_MISMATCH, ENTRYRESULT_SYNTAX, ENTRYRESULT_INVALID_ENTRY, ENTRYRESULT_INTERNAL, ENTRYRESULT_E2BIG, ENTRYRESULT_SPECIAL } EntryResult; static const char * skip_spaces(const char *str) { while (*str != 0 && isspace((unsigned char)*str)) { str++; } return str; } static int prefix_match(const char **str, const char *prefix) { size_t prefix_len = strlen(prefix); size_t str_len = strlen(*str); size_t i; int x = 0; if (str_len < prefix_len) { return 0; } for (i = 0; i < prefix_len; i++) { x |= tolower((unsigned char)(*str)[i]) ^ tolower((unsigned char)prefix[i]); } if (x == 0) { *str += prefix_len; return 1; } return 0; } static int add_to_matches(Match *const matches, size_t *matches_len, const char *start, const char *end) { size_t len; start = skip_spaces(start); len = (size_t)(end - start); while (len > 0 && isspace((unsigned char)start[len - 1])) { len--; } if (len == 0) { return -1; } matches[*matches_len].str = start; matches[*matches_len].str_len = len; (*matches_len)++; return 0; } static EntryResult err_mismatch(const char **err_p, const char *line_pnt, const char *line) { *err_p = *line_pnt != 0 ? line_pnt : line; return ENTRYRESULT_MISMATCH; } static EntryResult err_syntax(const char **err_p, const char *line_pnt, const char *line) { *err_p = *line_pnt != 0 ? line_pnt : line; return ENTRYRESULT_SYNTAX; } static EntryResult try_entry(const SimpleConfEntry *const entry, const char *line, char **arg_p, const char **err_p) { const char *in_pnt; const char *line_pnt; const char *match_start = NULL; const char *out_pnt; const char *prop_name = NULL; const char *wildcard_start = NULL; char * arg; Match matches[10]; size_t arg_len; size_t matches_len; size_t wildcard_len; State state = STATE_UNDEFINED; int expect_char; int is_boolean; int is_enabled; int is_special; int c = 0; int d = 0; *err_p = NULL; *arg_p = NULL; line = skip_spaces(line); if (*line == 0 || *line == '#') { return ENTRYRESULT_IGNORE; } in_pnt = entry->in; line_pnt = line; prop_name = in_pnt; matches_len = 0; expect_char = 0; is_boolean = 0; is_enabled = 0; is_special = 0; state = STATE_PROPNAME; while (*in_pnt != 0 || *line_pnt != 0) { c = *(const unsigned char *)line_pnt; d = *(const unsigned char *)in_pnt; switch (state) { case STATE_PROPNAME: if (isspace(d)) { in_pnt++; state = STATE_AFTERPROPNAME; } else if (d == '?' && is_boolean == 0) { is_boolean = 1; in_pnt++; } else if (d == '!' && is_special == 0) { is_special = 1; in_pnt++; } else if (c != 0 && d != 0 && tolower(c) == tolower(d)) { in_pnt++; line_pnt++; } else { return ENTRYRESULT_PROPNOTFOUND; } continue; case STATE_AFTERPROPNAME: if (c == '=' || c == ':') { state = STATE_AFTERPROPNAMESEP; line_pnt++; } else if (isspace(c)) { state = STATE_AFTERPROPNAME2; line_pnt++; } else { return err_syntax(err_p, line_pnt, line); } continue; case STATE_AFTERPROPNAME2: if (c == '=' || c == ':') { state = STATE_AFTERPROPNAMESEP; line_pnt++; } else if (isspace(c)) { line_pnt++; } else { state = STATE_AFTERPROPNAMESEP; } continue; case STATE_AFTERPROPNAMESEP: if (c == '=' || c == ':') { return err_syntax(err_p, line_pnt, line); } else if (isspace(c)) { line_pnt++; } else { if (*in_pnt == 0 || in_pnt == prop_name) { return err_syntax(err_p, line_pnt, line); } wildcard_start = line_pnt; state = STATE_RCHAR; } continue; case STATE_RCHAR: if (d == 0) { return err_mismatch(err_p, line_pnt, line); } else if (d == '(') { match_start = line_pnt; in_pnt++; } else if (d == ')') { if (match_start == NULL || matches_len >= (sizeof matches) / (sizeof matches[0]) || add_to_matches(matches, &matches_len, match_start, line_pnt) != 0) { return err_mismatch(err_p, line, line); } in_pnt++; } else if (prefix_match(&in_pnt, "")) { expect_char = 1; state = STATE_MATCH_ALPHA; } else if (prefix_match(&in_pnt, "")) { expect_char = 1; state = STATE_MATCH_ALNUM; } else if (prefix_match(&in_pnt, "")) { expect_char = 1; state = STATE_MATCH_DIGITS; } else if (prefix_match(&in_pnt, "")) { expect_char = 1; state = STATE_MATCH_XDIGITS; } else if (prefix_match(&in_pnt, "")) { expect_char = 1; state = STATE_MATCH_NOSPACE; } else if (prefix_match(&in_pnt, "")) { expect_char = 1; state = STATE_MATCH_ANY; } else if (prefix_match(&in_pnt, "")) { expect_char = 1; state = STATE_MATCH_ANY_UNQUOTED; } else if (prefix_match(&in_pnt, "")) { if (is_enabled) { return ENTRYRESULT_INVALID_ENTRY; } state = STATE_MATCH_BOOLEAN; } else if (d == '<') { return ENTRYRESULT_INVALID_ENTRY; } else if (isspace(d)) { in_pnt++; expect_char = 1; state = STATE_MATCH_SPACES; } else if (isgraph(d)) { if (c == d) { in_pnt++; line_pnt++; } else { return err_mismatch(err_p, line_pnt, line); } } else { return err_mismatch(err_p, line_pnt, line); } continue; case STATE_MATCH_ALPHA: if (isalpha(c)) { expect_char = 0; line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_ALNUM: if (isalnum(c)) { expect_char = 0; line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_DIGITS: if (isdigit(c)) { expect_char = 0; line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_XDIGITS: if (isxdigit(c)) { line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_NOSPACE: if (isgraph(c)) { expect_char = 0; line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_ANY: if (c == '"') { if (match_start == line_pnt) { match_start++; } else if (match_start != NULL) { return ENTRYRESULT_INVALID_ENTRY; } line_pnt++; state = STATE_MATCH_ANY_WITHINQUOTES; } else if (isgraph(c)) { expect_char = 0; line_pnt++; state = STATE_MATCH_ANY_WITHOUTQUOTES; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_ANY_WITHINQUOTES: if (c == '"') { state = STATE_MATCH_ANY_AFTERQUOTES; } else if (isprint(c)) { expect_char = 0; line_pnt++; } else { return err_syntax(err_p, line_pnt, line); } continue; case STATE_MATCH_ANY_AFTERQUOTES: if (d == ')') { if (match_start == NULL || matches_len >= (sizeof matches) / (sizeof matches[0]) || add_to_matches(matches, &matches_len, match_start, line_pnt) != 0) { return err_mismatch(err_p, line, line); } match_start = NULL; line_pnt++; in_pnt++; } state = STATE_RCHAR; continue; case STATE_MATCH_ANY_UNQUOTED: if (isprint(c)) { expect_char = 0; line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_ANY_WITHOUTQUOTES: if (isgraph(c)) { expect_char = 0; line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_SPACES: if (isspace(c)) { expect_char = 0; line_pnt++; } else { state = STATE_RCHAR; } continue; case STATE_MATCH_BOOLEAN: { if (prefix_match(&line_pnt, "yes") || prefix_match(&line_pnt, "on") || prefix_match(&line_pnt, "true") || prefix_match(&line_pnt, "1")) { is_enabled = 1; state = STATE_RCHAR; } else if (prefix_match(&line_pnt, "no") || prefix_match(&line_pnt, "off") || prefix_match(&line_pnt, "false") || prefix_match(&line_pnt, "0")) { is_enabled = 0; state = STATE_RCHAR; } else { return err_syntax(err_p, line_pnt, line); } continue; } default: return ENTRYRESULT_INVALID_ENTRY; } } switch (state) { case STATE_RCHAR: case STATE_MATCH_ALPHA: case STATE_MATCH_ALNUM: case STATE_MATCH_DIGITS: case STATE_MATCH_XDIGITS: case STATE_MATCH_NOSPACE: case STATE_MATCH_ANY: case STATE_MATCH_ANY_AFTERQUOTES: case STATE_MATCH_ANY_WITHOUTQUOTES: case STATE_MATCH_ANY_UNQUOTED: case STATE_MATCH_SPACES: case STATE_MATCH_BOOLEAN: break; default: return err_mismatch(err_p, line_pnt, line); } if (expect_char != 0) { return err_mismatch(err_p, line_pnt, line); } if (*in_pnt == ')') { if (match_start == NULL || matches_len >= (sizeof matches) / (sizeof matches[0]) || add_to_matches(matches, &matches_len, match_start, line_pnt) != 0) { return ENTRYRESULT_SYNTAX; } match_start = NULL; } if (is_boolean != 0 && is_enabled == 0) { return ENTRYRESULT_IGNORE; } if (wildcard_start == NULL) { wildcard_len = 0; } else { wildcard_len = (size_t) (line_pnt - wildcard_start); } out_pnt = entry->out; if ((arg = malloc(SC_MAX_ARG_LENGTH + 1)) == NULL) { return ENTRYRESULT_INTERNAL; } arg_len = 0; state = STATE_TEMPLATE_RCHAR; while (arg_len < SC_MAX_ARG_LENGTH && *out_pnt != 0) { d = *(const unsigned char *)out_pnt; switch (state) { case STATE_TEMPLATE_RCHAR: if (d == '$') { out_pnt++; state = STATE_TEMPLATE_SUBST_ESC; } else { arg[arg_len] = (char)d; arg_len++; out_pnt++; } continue; case STATE_TEMPLATE_SUBST_ESC: if (d == '*') { size_t i = 0; while (arg_len < SC_MAX_ARG_LENGTH && i < wildcard_len) { arg[arg_len++] = wildcard_start[i++]; } out_pnt++; state = STATE_TEMPLATE_RCHAR; } else if (d >= '0' && d <= '9') { size_t match_id = (size_t)(d - '0'); size_t i = 0; if (match_id >= matches_len) { return ENTRYRESULT_INVALID_ENTRY; } while ( arg_len < SC_MAX_ARG_LENGTH && i < matches[match_id].str_len) { arg[arg_len++] = matches[match_id].str[i++]; } out_pnt++; state = STATE_TEMPLATE_RCHAR; } else { return ENTRYRESULT_INVALID_ENTRY; } continue; default: abort(); } } if (arg_len >= SC_MAX_ARG_LENGTH) { free(arg); errno = E2BIG; return ENTRYRESULT_E2BIG; } arg[arg_len] = 0; *arg_p = arg; if (is_special) { return ENTRYRESULT_SPECIAL; } return ENTRYRESULT_OK; } static char * chomp(char *str) { size_t i = strlen(str); int c; if (i == 0) { return str; } do { i--; c = (unsigned char) str[i]; if (isspace(c)) { str[i] = 0; } else { break; } } while (i != 0); return str; } void sc_argv_free(int argc, char *argv[]) { int i; for (i = 0; i < argc; i++) { free(argv[i]); } free(argv); } static int append_to_command_line_from_file(const char *file_name, const SimpleConfConfig *config, const SimpleConfEntry entries[], size_t entries_count, int *argc_p, char ***argv_p, unsigned int depth) { char line[SC_MAX_ARG_LENGTH]; FILE *fp = NULL; char *arg; char **argv_tmp; const char *err = NULL; const char *err_tmp; size_t i; unsigned int line_count = 0; int try_next = 1; if (depth >= SC_MAX_RECURSION) { fprintf(stderr, "[%s]: too many levels of recursion\n", file_name); return -1; } if ((fp = fopen(file_name, "r")) == NULL) { fprintf(stderr, "Unable to open [%s]: %s\n", file_name, strerror(errno)); return -1; } while (fgets(line, (int)(sizeof line), fp) != NULL) { chomp(line); line_count++; for (i = 0; i < entries_count; i++) { try_next = 1; switch (try_entry(&entries[i], line, &arg, &err_tmp)) { case ENTRYRESULT_IGNORE: try_next = 0; break; case ENTRYRESULT_PROPNOTFOUND: break; case ENTRYRESULT_E2BIG: fclose(fp); return -1; case ENTRYRESULT_INVALID_ENTRY: fprintf(stderr, "Bogus rule: [%s]\n", entries[i].in); abort(); case ENTRYRESULT_INTERNAL: fclose(fp); return -1; case ENTRYRESULT_MISMATCH: err = err_tmp; continue; case ENTRYRESULT_SYNTAX: { err = err_tmp; if (err != NULL && *err != 0) { fprintf(stderr, "%s:%u:%u: syntax error line %u: [%s].\n", file_name, line_count, (unsigned int)(err - line + 1), line_count, err); } else { fprintf(stderr, "%s:%u:1: syntax error line %u: [%s].\n", file_name, line_count, line_count, line); } fclose(fp); return -1; } case ENTRYRESULT_OK: try_next = 0; if (arg == NULL || *arg == 0) { free(arg); break; } if (*argc_p >= INT_MAX / (int)(sizeof *arg)) { abort(); } if ((argv_tmp = realloc(*argv_p, (sizeof arg) * ((size_t) *argc_p + 1))) == NULL) { fclose(fp); return -1; } *argv_p = argv_tmp; (*argv_p)[(*argc_p)++] = arg; break; case ENTRYRESULT_SPECIAL: { char *output = NULL; SimpleConfSpecialHandlerResult special_result; try_next = 0; if (config == NULL || config->special_handler == NULL) { fprintf(stderr, "Undefined handler for special keywords\n"); abort(); } special_result = config->special_handler((void **) &output, arg, config->user_data); if (special_result == SC_SPECIAL_HANDLER_RESULT_NEXT) { free(arg); break; } else if (special_result == SC_SPECIAL_HANDLER_RESULT_ERROR) { free(arg); fclose(fp); return -1; } else if (special_result == SC_SPECIAL_HANDLER_RESULT_INCLUDE) { const int ret = append_to_command_line_from_file ((const char *) output, config, entries, entries_count, argc_p, argv_p, depth + 1U); free(output); free(arg); if (ret != 0) { fclose(fp); return -1; } break; } abort(); } default: abort(); } if (try_next == 0) { break; } } if (try_next != 0 && i >= entries_count) { if (err != NULL && *err != 0) { fprintf(stderr, "%s:%u:%u: syntax error line %u: [%s].\n", file_name, line_count, (unsigned int)(err - line + 1), line_count, err); } else { fprintf(stderr, "%s:%u:1: property not found line %u: [%s].\n", file_name, line_count, line_count, line); } fclose(fp); return -1; } } (void) fclose(fp); return 0; } int sc_build_command_line_from_file(const char *file_name, const SimpleConfConfig *config, const SimpleConfEntry entries[], size_t entries_count, char *app_name, int *argc_p, char ***argv_p) { char **argv = NULL; int argc = 0; *argc_p = 0; *argv_p = NULL; if ((argv = malloc(sizeof *argv)) == NULL || (app_name = strdup(app_name)) == NULL) { sc_argv_free(argc, argv); return -1; } argv[argc++] = app_name; if (append_to_command_line_from_file(file_name, config, entries, entries_count, &argc, &argv, 0U) != 0) { sc_argv_free(argc, argv); return -1; } *argc_p = argc; *argv_p = argv; return 0; } dnscrypt-proxy-1.9.4/src/proxy/simpleconf.h000644 000765 000024 00000002045 13037731714 020435 0ustar00jstaff000000 000000 #ifndef __SIMPLECONF_H__ #define __SIMPLECONF_H__ 1 #include typedef struct SimpleConfEntry_ { const char *in; const char *out; } SimpleConfEntry; typedef enum SimpleConfSpecialHandlerResult_ { SC_SPECIAL_HANDLER_RESULT_UNDEFINED, SC_SPECIAL_HANDLER_RESULT_NEXT, SC_SPECIAL_HANDLER_RESULT_ERROR, SC_SPECIAL_HANDLER_RESULT_INCLUDE, } SimpleConfSpecialHandlerResult; typedef SimpleConfSpecialHandlerResult (*SimpleConfSpecialHandler) (void **output_p, const char *arg, void *user_data); typedef struct SimpleConfConfig_ { void *user_data; SimpleConfSpecialHandler special_handler; } SimpleConfConfig; int sc_build_command_line_from_file(const char *file_name, const SimpleConfConfig *config, const SimpleConfEntry entries[], size_t entries_count, char *app_name, int *argc_p, char ***argv_p); void sc_argv_free(int argc, char *argv[]); #endif dnscrypt-proxy-1.9.4/src/proxy/simpleconf_dnscrypt.h000644 000765 000024 00000007033 13037731714 022365 0ustar00jstaff000000 000000 #ifndef __SIMPLECONF_DNSCRYPT_H__ #define __SIMPLECONF_DNSCRYPT_H__ 1 #include "simpleconf.h" #define PLUGIN_LIB(X) LT_LIBPREFIX "dcplugin_example_" X LT_MODULE_EXT static const SimpleConfEntry simpleconf_options[] = { {"ClientKey ()", "--client-key=$0"}, {"Daemonize? ", "--daemonize"}, {"EDNSPayloadSize ()", "--edns-payload-size=$0"}, {"EphemeralKeys? ", "--ephemeral-keys"}, {"IgnoreTimestamps? ", "--ignore-timestamps"}, {"LocalAddress ()", "--local-address=$0"}, {"LogFile ()", "--logfile=$0"}, {"LogLevel ()", "--loglevel=$0"}, {"MaxActiveRequests ()", "--max-active-requests=$0"}, {"PidFile ()", "--pidfile=$0"}, {"ProviderKey ()", "--provider-key=$0"}, {"ProviderName ()", "--provider-name=$0"}, {"ResolverAddress ()", "--resolver-address=$0"}, {"ResolverName ()", "--resolver-name=$0"}, {"ResolversList ()", "--resolvers-list=$0"}, {"SyslogPrefix ()", "--syslog-prefix=$0"}, {"Syslog? ", "--syslog"}, {"TCPOnly? ", "--tcp-only"}, {"Test ()", "--test=$0"}, {"User ()", "--user=$0"}, {"BlackList domains:() logfile:()", "--plugin=" PLUGIN_LIB("ldns_blocking") ",--domains=$0,--logfile=$1" }, {"BlackList ips:() logfile:()", "--plugin=" PLUGIN_LIB("ldns_blocking") ",--ips=$0,--logfile=$1" }, {"BlackList domains:() ips:() logfile:()", "--plugin=" PLUGIN_LIB("ldns_blocking") ",--domains=$0,--ips=$1,--logfile=$2" }, {"BlackList domains:()", "--plugin=" PLUGIN_LIB("ldns_blocking") ",--domains=$0" }, {"BlackList ips:()", "--plugin=" PLUGIN_LIB("ldns_blocking") ",--ips=$0" }, {"BlackList domains:() ips:()", "--plugin=" PLUGIN_LIB("ldns_blocking") ",--domains=$0,--ips=$1" }, {"BlockIPv6? ", "--plugin=" PLUGIN_LIB("ldns_aaaa_blocking") }, {"QueryLogFile ()", "--plugin=" PLUGIN_LIB("logging") ",$0" }, {"Forward domains:() to:()", "--plugin=" PLUGIN_LIB("ldns_forwarding") ",--domains=$0,--resolvers=$1" }, {"LocalCache? min-ttl:()", "--plugin=" PLUGIN_LIB("cache") ",--min-ttl=$0" }, {"LocalCache? ", "--plugin=" PLUGIN_LIB("cache") }, {"OpenDNSIP ()", "--plugin=" PLUGIN_LIB("ldns_opendns_set_client_ip") ",$0" }, {"OpenDNSPasswordFile ()", "--plugin=" PLUGIN_LIB("ldns_opendns_deviceid") ",$0" }, {"Plugin ()", "--plugin=$0" }, {"!Include ()", "$0"} }; #endif dnscrypt-proxy-1.9.4/src/proxy/stack_trace.c000644 000765 000024 00000006202 13037731714 020553 0ustar00jstaff000000 000000 #include #ifdef HAVE_SYS_CDEFS_H # include #elif defined(HAVE_SYS_FEATURE_TESTS_H) # include #else # include #endif #if !defined(_XOPEN_SOURCE) || _XOPEN_SOURCE < 500 # undef _XOPEN_SOURCE # define _XOPEN_SOURCE 500 #endif #ifndef _GNU_SOURCE # define _GNU_SOURCE 1 #endif #if !defined(HAVE_SYS_CDEFS_H) && !defined(HAVE_SYS_FEATURE_TESTS_H) # include #endif #ifndef _WIN32 # include #endif #ifdef HAVE_EXECINFO_H # include #endif #include #include #include #include #include "stack_trace.h" #if defined(__OpenBSD__) || defined(__Bitrig__) # undef HAVE_BACKTRACE #endif void stack_trace(void) { #ifndef HAVE_BACKTRACE fputs("This platform doesn't support backtrace() yet.\n", stderr); #else void *trace[100]; char **messages = NULL; int i; int trace_size = 0; trace_size = backtrace(trace, sizeof(trace) / sizeof(trace[0])); messages = backtrace_symbols(trace, trace_size); fprintf(stderr, "======== Stack trace ========\n"); for (i = 1; i < trace_size; ++i) { fprintf(stderr, "%s\n", messages[i]); } #endif } #ifdef HAVE_BACKTRACE static void stack_trace_signal_handler(int sig, siginfo_t *info, void *f) { (void) info; (void) f; fprintf(stderr, "\nSignal [%d] received.\n\n", sig); stack_trace(); kill(getpid(), sig); abort(); /* NOTREACHED */ } #endif int stack_trace_on_crash(void) { #ifdef HAVE_BACKTRACE struct sigaction act; sigemptyset(&act.sa_mask); act.sa_flags = SA_NODEFER | SA_ONSTACK | SA_RESETHAND | SA_SIGINFO; act.sa_sigaction = stack_trace_signal_handler; sigaction(SIGABRT, &act, NULL); sigaction(SIGBUS, &act, NULL); sigaction(SIGFPE, &act, NULL); # ifdef SIGILL sigaction(SIGILL, &act, NULL); # endif sigaction(SIGSEGV, &act, NULL); #endif return 0; } #ifdef GCC_TRACE # ifndef __APPLE__ # define profile_func_enter(A, B) __cyg_profile_func_enter(A, B) # define profile_func_exit(A, B) __cyg_profile_func_exit(A, B) # endif static unsigned int call_level = 0U; void profile_func_enter(void *this_fn, void *call_site) __attribute__((no_instrument_function)); void profile_func_enter(void *this_fn, void *call_site) { unsigned int level = 0U; (void) call_site; ++call_level; Dl_info info; this_fn = __builtin_return_address(0); if (dladdr(this_fn, &info) == 0) { return; } if (info.dli_sname != NULL && info.dli_sname[0] == '_' && info.dli_sname[1] == '_') { return; } while (level < call_level) { fputs("┃ ", stderr); level++; } fputs("┣━━┈", stderr); if (info.dli_sname != NULL && info.dli_sname[0] != 0) { fprintf(stderr, "%s()\n", info.dli_sname); } else { fprintf(stderr, "<%p>()\n", this_fn); } } void profile_func_exit(void *this_fn, void *call_site) __attribute__((no_instrument_function)); void profile_func_exit(void *this_fn, void *call_site) { (void) this_fn; (void) call_site; if (call_level > 0U) { call_level--; } } #endif dnscrypt-proxy-1.9.4/src/proxy/stack_trace.h000644 000765 000024 00000000171 13037731714 020557 0ustar00jstaff000000 000000 #ifndef __STACK_TRACE_H__ #define __STACK_TRACE_H__ 1 void stack_trace(void); int stack_trace_on_crash(void); #endif dnscrypt-proxy-1.9.4/src/proxy/tcp_request.c000644 000765 000024 00000057533 13037731714 020643 0ustar00jstaff000000 000000 #include #include #ifdef _WIN32 # include #else # include # include # include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include "dnscrypt_client.h" #include "dnscrypt_proxy.h" #include "logger.h" #include "probes.h" #include "tcp_request.h" #include "tcp_request_p.h" #include "udp_request.h" #ifdef PLUGINS # include "plugin_support.h" #endif static void tcp_request_free(TCPRequest * const tcp_request) { ProxyContext *proxy_context; if (tcp_request->timeout_timer != NULL) { event_free(tcp_request->timeout_timer); tcp_request->timeout_timer = NULL; } if (tcp_request->client_proxy_bev != NULL) { DNSCRYPT_PROXY_REQUEST_TCP_DONE(tcp_request); bufferevent_free(tcp_request->client_proxy_bev); tcp_request->client_proxy_bev = NULL; } if (tcp_request->proxy_resolver_bev != NULL) { DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_DONE(tcp_request); bufferevent_free(tcp_request->proxy_resolver_bev); tcp_request->proxy_resolver_bev = NULL; } if (tcp_request->proxy_resolver_query_evbuf != NULL) { evbuffer_free(tcp_request->proxy_resolver_query_evbuf); tcp_request->proxy_resolver_query_evbuf = NULL; } proxy_context = tcp_request->proxy_context; if (tcp_request->status.is_in_queue != 0) { assert(! TAILQ_EMPTY(&proxy_context->tcp_request_queue)); TAILQ_REMOVE(&proxy_context->tcp_request_queue, tcp_request, queue); assert(proxy_context->connections_count > 0U); proxy_context->connections_count--; DNSCRYPT_PROXY_STATUS_REQUESTS_ACTIVE(proxy_context->connections_count, proxy_context->connections_count_max); } tcp_request->proxy_context = NULL; free(tcp_request); } static void tcp_request_kill(TCPRequest * const tcp_request) { if (tcp_request == NULL || tcp_request->status.is_dying) { return; } tcp_request->status.is_dying = 1; tcp_request_free(tcp_request); } static void tcp_tune(evutil_socket_t handle) { if (handle == -1) { return; } #ifdef TCP_QUICKACK setsockopt(handle, IPPROTO_TCP, TCP_QUICKACK, (void *) (int []) { 1 }, sizeof (int)); #else setsockopt(handle, IPPROTO_TCP, TCP_NODELAY, (void *) (int []) { 1 }, sizeof (int)); #endif } static void timeout_timer_cb(evutil_socket_t timeout_timer_handle, short ev_flags, void * const tcp_request_) { TCPRequest * const tcp_request = tcp_request_; (void) ev_flags; (void) timeout_timer_handle; DNSCRYPT_PROXY_REQUEST_TCP_TIMEOUT(tcp_request); logger_noformat(tcp_request->proxy_context, LOG_DEBUG, "resolver timeout (TCP)"); tcp_request_kill(tcp_request); } static void proxy_resolver_event_cb(struct bufferevent * const proxy_resolver_bev, const short events, void * const tcp_request_) { TCPRequest * const tcp_request = tcp_request_; (void) proxy_resolver_bev; if ((events & BEV_EVENT_ERROR) != 0) { DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_NETWORK_ERROR(tcp_request); tcp_request_kill(tcp_request); return; } if ((events & BEV_EVENT_CONNECTED) == 0) { DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_CONNECTED(tcp_request); tcp_tune(bufferevent_getfd(proxy_resolver_bev)); return; } } static void resolver_proxy_read_cb(struct bufferevent * const proxy_resolver_bev, void * const tcp_request_) { uint8_t dns_reply_len_buf[2]; uint8_t dns_uncurved_reply_len_buf[2]; uint8_t *dns_reply; TCPRequest *tcp_request = tcp_request_; ProxyContext *proxy_context = tcp_request->proxy_context; struct evbuffer *input = bufferevent_get_input(proxy_resolver_bev); size_t available_size; size_t dns_reply_len; size_t uncurved_len; if (tcp_request->status.has_dns_reply_len == 0) { assert(evbuffer_get_length(input) >= (size_t) 2U); evbuffer_remove(input, dns_reply_len_buf, sizeof dns_reply_len_buf); tcp_request->dns_reply_len = (size_t) ((dns_reply_len_buf[0] << 8) | dns_reply_len_buf[1]); tcp_request->status.has_dns_reply_len = 1; } assert(tcp_request->status.has_dns_reply_len != 0); dns_reply_len = tcp_request->dns_reply_len; if (dns_reply_len < (size_t) DNS_HEADER_SIZE + dnscrypt_response_header_size()) { logger_noformat(proxy_context, LOG_WARNING, "Short reply received"); DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_GOT_INVALID_REPLY(tcp_request); tcp_request_kill(tcp_request); return; } available_size = evbuffer_get_length(input); if (available_size < dns_reply_len) { bufferevent_setwatermark(tcp_request->proxy_resolver_bev, EV_READ, dns_reply_len, dns_reply_len); return; } DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_REPLIED(tcp_request); assert(available_size >= dns_reply_len); dns_reply = evbuffer_pullup(input, (ssize_t) dns_reply_len); if (dns_reply == NULL) { tcp_request_kill(tcp_request); return; } uncurved_len = dns_reply_len; DNSCRYPT_PROXY_REQUEST_UNCURVE_START(tcp_request, uncurved_len); if (dnscrypt_client_uncurve(&proxy_context->dnscrypt_client, tcp_request->client_nonce, dns_reply, &uncurved_len) != 0) { DNSCRYPT_PROXY_REQUEST_UNCURVE_ERROR(tcp_request); DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_GOT_INVALID_REPLY(tcp_request); logger_noformat(tcp_request->proxy_context, LOG_INFO, "Received a corrupted reply from the resolver"); tcp_request_kill(tcp_request); return; } DNSCRYPT_PROXY_REQUEST_UNCURVE_DONE(tcp_request, uncurved_len); memset(tcp_request->client_nonce, 0, sizeof tcp_request->client_nonce); assert(uncurved_len <= dns_reply_len); dns_reply_len = uncurved_len; #ifdef PLUGINS const size_t max_reply_size_for_filter = tcp_request->dns_reply_len; DCPluginDNSPacket dcp_packet = { .client_sockaddr = &tcp_request->client_sockaddr, .dns_packet = dns_reply, .dns_packet_len_p = &dns_reply_len, .client_sockaddr_len_s = (size_t) tcp_request->client_sockaddr_len, .dns_packet_max_len = max_reply_size_for_filter }; DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_START(tcp_request, dns_reply_len, max_reply_size_for_filter); assert(proxy_context->app_context->dcps_context != NULL); const DCPluginSyncFilterResult res = plugin_support_context_apply_sync_post_filters (proxy_context->app_context->dcps_context, &dcp_packet); assert(dns_reply_len > (size_t) 0U && dns_reply_len <= tcp_request->dns_reply_len && dns_reply_len <= max_reply_size_for_filter); if (res != DCP_SYNC_FILTER_RESULT_OK) { DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_ERROR(tcp_request, res); tcp_request_kill(tcp_request); return; } DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_DONE(tcp_request, dns_reply_len, max_reply_size_for_filter); #endif dns_uncurved_reply_len_buf[0] = (dns_reply_len >> 8) & 0xff; dns_uncurved_reply_len_buf[1] = dns_reply_len & 0xff; if (bufferevent_write(tcp_request->client_proxy_bev, dns_uncurved_reply_len_buf, (size_t) 2U) != 0 || bufferevent_write(tcp_request->client_proxy_bev, dns_reply, dns_reply_len) != 0) { tcp_request_kill(tcp_request); return; } bufferevent_enable(tcp_request->client_proxy_bev, EV_WRITE); DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_DONE(tcp_request); bufferevent_free(tcp_request->proxy_resolver_bev); tcp_request->proxy_resolver_bev = NULL; } static void client_proxy_event_cb(struct bufferevent * const client_proxy_bev, const short events, void * const tcp_request_) { TCPRequest * const tcp_request = tcp_request_; (void) client_proxy_bev; (void) events; tcp_request_kill(tcp_request); } static void client_proxy_write_cb(struct bufferevent * const client_proxy_bev, void * const tcp_request_) { TCPRequest * const tcp_request = tcp_request_; (void) client_proxy_bev; DNSCRYPT_PROXY_REQUEST_TCP_REPLIED(tcp_request); tcp_request_kill(tcp_request); } #ifdef PLUGINS static void proxy_to_client_direct(TCPRequest * const tcp_request, const uint8_t * const dns_reply, const size_t dns_reply_len) { uint8_t dns_reply_len_buf[2]; DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_DONE(tcp_request); bufferevent_free(tcp_request->proxy_resolver_bev); tcp_request->proxy_resolver_bev = NULL; dns_reply_len_buf[0] = (dns_reply_len >> 8) & 0xff; dns_reply_len_buf[1] = dns_reply_len & 0xff; if (bufferevent_write(tcp_request->client_proxy_bev, dns_reply_len_buf, (size_t) 2U) != 0 || bufferevent_write(tcp_request->client_proxy_bev, dns_reply, dns_reply_len) != 0) { tcp_request_kill(tcp_request); return; } bufferevent_enable(tcp_request->client_proxy_bev, EV_WRITE); assert(tcp_request->proxy_resolver_bev == NULL); } #endif static void client_proxy_read_cb(struct bufferevent * const client_proxy_bev, void * const tcp_request_) { uint8_t dns_query[DNS_MAX_PACKET_SIZE_TCP - 2U]; uint8_t dns_query_len_buf[2]; uint8_t dns_curved_query_len_buf[2]; TCPRequest *tcp_request = tcp_request_; ProxyContext *proxy_context = tcp_request->proxy_context; struct evbuffer *input = bufferevent_get_input(client_proxy_bev); ssize_t curve_ret; size_t available_size; size_t dns_query_len; size_t max_query_size; if (tcp_request->status.has_dns_query_len == 0) { assert(evbuffer_get_length(input) >= (size_t) 2U); evbuffer_remove(input, dns_query_len_buf, sizeof dns_query_len_buf); tcp_request->dns_query_len = (size_t) ((dns_query_len_buf[0] << 8) | dns_query_len_buf[1]); tcp_request->status.has_dns_query_len = 1; } assert(tcp_request->status.has_dns_query_len != 0); dns_query_len = tcp_request->dns_query_len; if (dns_query_len < (size_t) DNS_HEADER_SIZE) { logger_noformat(proxy_context, LOG_WARNING, "Short query received"); tcp_request_kill(tcp_request); return; } available_size = evbuffer_get_length(input); if (available_size < dns_query_len) { bufferevent_setwatermark(tcp_request->client_proxy_bev, EV_READ, dns_query_len, dns_query_len); return; } assert(available_size >= dns_query_len); bufferevent_disable(tcp_request->client_proxy_bev, EV_READ); assert(tcp_request->proxy_resolver_query_evbuf == NULL); if ((tcp_request->proxy_resolver_query_evbuf = evbuffer_new()) == NULL) { tcp_request_kill(tcp_request); return; } if ((ssize_t) evbuffer_remove_buffer(input, tcp_request->proxy_resolver_query_evbuf, dns_query_len) != (ssize_t) dns_query_len) { tcp_request_kill(tcp_request); return; } assert(dns_query_len <= sizeof dns_query); if ((ssize_t) evbuffer_remove(tcp_request->proxy_resolver_query_evbuf, dns_query, dns_query_len) != (ssize_t) dns_query_len) { tcp_request_kill(tcp_request); return; } max_query_size = sizeof dns_query; assert(max_query_size < DNS_MAX_PACKET_SIZE_TCP); #ifdef PLUGINS size_t max_query_size_for_filter = dns_query_len; const size_t header_size = dnscrypt_query_header_size(); if (max_query_size > DNSCRYPT_MAX_PADDING + header_size && max_query_size - (DNSCRYPT_MAX_PADDING + header_size) > dns_query_len) { max_query_size_for_filter = max_query_size - (DNSCRYPT_MAX_PADDING + header_size); } DCPluginDNSPacket dcp_packet = { .client_sockaddr = &tcp_request->client_sockaddr, .dns_packet = dns_query, .dns_packet_len_p = &dns_query_len, .client_sockaddr_len_s = (size_t) tcp_request->client_sockaddr_len, .dns_packet_max_len = max_query_size_for_filter }; DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_START(tcp_request, dns_query_len, max_query_size_for_filter); assert(proxy_context->app_context->dcps_context != NULL); const DCPluginSyncFilterResult res = plugin_support_context_apply_sync_pre_filters (proxy_context->app_context->dcps_context, &dcp_packet); assert(dns_query_len > (size_t) 0U && dns_query_len <= max_query_size && dns_query_len <= max_query_size_for_filter); switch (res) { case DCP_SYNC_FILTER_RESULT_OK: break; case DCP_SYNC_FILTER_RESULT_DIRECT: DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_DONE(tcp_request, dns_query_len, max_query_size_for_filter); proxy_to_client_direct(tcp_request, dns_query, dns_query_len); return; default: DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_ERROR(tcp_request, res); tcp_request_kill(tcp_request); return; } DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_DONE(tcp_request, dns_query_len, max_query_size_for_filter); #endif assert(SIZE_MAX - DNSCRYPT_MAX_PADDING - dnscrypt_query_header_size() > dns_query_len); size_t max_len = dns_query_len + DNSCRYPT_MAX_PADDING + dnscrypt_query_header_size(); if (max_len > max_query_size) { max_len = max_query_size; } if (dns_query_len + dnscrypt_query_header_size() > max_len) { tcp_request_kill(tcp_request); return; } assert(max_len <= DNS_MAX_PACKET_SIZE_TCP - 2U); assert(max_len <= sizeof dns_query); assert(dns_query_len <= max_len); DNSCRYPT_PROXY_REQUEST_CURVE_START(tcp_request, dns_query_len); curve_ret = dnscrypt_client_curve(&proxy_context->dnscrypt_client, tcp_request->client_nonce, dns_query, dns_query_len, max_len); if (curve_ret <= (ssize_t) 0) { DNSCRYPT_PROXY_REQUEST_CURVE_ERROR(tcp_request); tcp_request_kill(tcp_request); return; } DNSCRYPT_PROXY_REQUEST_CURVE_DONE(tcp_request, (size_t) curve_ret); dns_curved_query_len_buf[0] = (curve_ret >> 8) & 0xff; dns_curved_query_len_buf[1] = curve_ret & 0xff; if (bufferevent_write(tcp_request->proxy_resolver_bev, dns_curved_query_len_buf, (size_t) 2U) != 0 || bufferevent_write(tcp_request->proxy_resolver_bev, dns_query, (size_t) curve_ret) != 0) { tcp_request_kill(tcp_request); return; } bufferevent_enable(tcp_request->proxy_resolver_bev, EV_READ); } static void tcp_connection_cb(struct evconnlistener * const tcp_conn_listener, evutil_socket_t handle, struct sockaddr * const client_sockaddr, const int client_sockaddr_len_int, void * const proxy_context_) { ProxyContext *proxy_context = proxy_context_; TCPRequest *tcp_request; (void) tcp_conn_listener; (void) client_sockaddr; (void) client_sockaddr_len_int; if ((tcp_request = calloc((size_t) 1U, sizeof *tcp_request)) == NULL) { return; } tcp_request->proxy_context = proxy_context; tcp_request->timeout_timer = NULL; tcp_request->proxy_resolver_query_evbuf = NULL; #ifdef PLUGINS assert(client_sockaddr_len_int >= 0 && sizeof tcp_request->client_sockaddr >= (size_t) client_sockaddr_len_int); memcpy(&tcp_request->client_sockaddr, client_sockaddr, (size_t) client_sockaddr_len_int); tcp_request->client_sockaddr_len = (ev_socklen_t) client_sockaddr_len_int; #endif tcp_request->client_proxy_bev = bufferevent_socket_new(proxy_context->event_loop, handle, BEV_OPT_CLOSE_ON_FREE); if (tcp_request->client_proxy_bev == NULL) { evutil_closesocket(handle); free(tcp_request); return; } tcp_request->proxy_resolver_bev = bufferevent_socket_new (proxy_context->event_loop, -1, BEV_OPT_CLOSE_ON_FREE); if (tcp_request->proxy_resolver_bev == NULL) { bufferevent_free(tcp_request->client_proxy_bev); tcp_request->client_proxy_bev = NULL; free(tcp_request); return; } if (proxy_context->connections_count >= proxy_context->connections_count_max) { DNSCRYPT_PROXY_REQUEST_TCP_OVERLOADED(); if (tcp_listener_kill_oldest_request(proxy_context) != 0) { udp_listener_kill_oldest_request(proxy_context); } } proxy_context->connections_count++; assert(proxy_context->connections_count <= proxy_context->connections_count_max); DNSCRYPT_PROXY_STATUS_REQUESTS_ACTIVE(proxy_context->connections_count, proxy_context->connections_count_max); DNSCRYPT_PROXY_REQUEST_TCP_START(tcp_request); TAILQ_INSERT_TAIL(&proxy_context->tcp_request_queue, tcp_request, queue); memset(&tcp_request->status, 0, sizeof tcp_request->status); tcp_request->status.is_in_queue = 1; if ((tcp_request->timeout_timer = evtimer_new(tcp_request->proxy_context->event_loop, timeout_timer_cb, tcp_request)) == NULL) { tcp_request_kill(tcp_request); return; } const struct timeval tv = { .tv_sec = (time_t) DNS_QUERY_TIMEOUT, .tv_usec = 0 }; evtimer_add(tcp_request->timeout_timer, &tv); bufferevent_setwatermark(tcp_request->client_proxy_bev, EV_READ, (size_t) 2U, (size_t) DNS_MAX_PACKET_SIZE_TCP); bufferevent_setcb(tcp_request->client_proxy_bev, client_proxy_read_cb, client_proxy_write_cb, client_proxy_event_cb, tcp_request); if (bufferevent_socket_connect (tcp_request->proxy_resolver_bev, (struct sockaddr *) &proxy_context->resolver_sockaddr, (int) proxy_context->resolver_sockaddr_len) != 0) { tcp_request_kill(tcp_request); return; } bufferevent_setwatermark(tcp_request->proxy_resolver_bev, EV_READ, (size_t) 2U, (size_t) DNS_MAX_PACKET_SIZE_TCP); bufferevent_setcb(tcp_request->proxy_resolver_bev, resolver_proxy_read_cb, NULL, proxy_resolver_event_cb, tcp_request); DNSCRYPT_PROXY_REQUEST_TCP_PROXY_RESOLVER_START(tcp_request); bufferevent_enable(tcp_request->client_proxy_bev, EV_READ); } static void tcp_accept_timer_cb(evutil_socket_t handle, const short event, void * const proxy_context_) { ProxyContext *proxy_context = proxy_context_; (void) handle; (void) event; event_free(proxy_context->tcp_accept_timer); proxy_context->tcp_accept_timer = NULL; evconnlistener_enable(proxy_context->tcp_conn_listener); } static void tcp_accept_error_cb(struct evconnlistener * const tcp_conn_listener, void * const proxy_context_) { ProxyContext *proxy_context = proxy_context_; (void) tcp_conn_listener; DNSCRYPT_PROXY_REQUEST_TCP_NETWORK_ERROR(NULL); if (proxy_context->tcp_accept_timer == NULL) { proxy_context->tcp_accept_timer = evtimer_new (proxy_context->event_loop, tcp_accept_timer_cb, proxy_context); if (proxy_context->tcp_accept_timer == NULL) { return; } } if (evtimer_pending(proxy_context->tcp_accept_timer, NULL)) { return; } evconnlistener_disable(proxy_context->tcp_conn_listener); const struct timeval tv = { .tv_sec = (time_t) 1, .tv_usec = 0 }; evtimer_add(proxy_context->tcp_accept_timer, &tv); } int tcp_listener_kill_oldest_request(ProxyContext * const proxy_context) { if (TAILQ_EMPTY(&proxy_context->tcp_request_queue)) { return -1; } tcp_request_kill(TAILQ_FIRST(&proxy_context->tcp_request_queue)); return 0; } int tcp_listener_bind(ProxyContext * const proxy_context) { assert(proxy_context->tcp_conn_listener == NULL); #ifndef LEV_OPT_DEFERRED_ACCEPT # define LEV_OPT_DEFERRED_ACCEPT 0 #endif if (proxy_context->tcp_listener_handle == -1) { unsigned int flags = LEV_OPT_CLOSE_ON_FREE | LEV_OPT_CLOSE_ON_EXEC | LEV_OPT_REUSEABLE | LEV_OPT_REUSEABLE_PORT | LEV_OPT_DEFERRED_ACCEPT; for (;;) { proxy_context->tcp_conn_listener = evconnlistener_new_bind(proxy_context->event_loop, tcp_connection_cb, proxy_context, flags, TCP_REQUEST_BACKLOG, (struct sockaddr *) &proxy_context->local_sockaddr, (int) proxy_context->local_sockaddr_len); if (proxy_context->tcp_conn_listener != NULL || (flags & LEV_OPT_REUSEABLE_PORT) == 0U) { break; } flags &= ~LEV_OPT_REUSEABLE_PORT; } } else { evutil_make_socket_closeonexec(proxy_context->tcp_listener_handle); evutil_make_socket_nonblocking(proxy_context->tcp_listener_handle); proxy_context->tcp_conn_listener = evconnlistener_new(proxy_context->event_loop, tcp_connection_cb, proxy_context, LEV_OPT_CLOSE_ON_FREE | LEV_OPT_CLOSE_ON_EXEC | LEV_OPT_REUSEABLE | LEV_OPT_DEFERRED_ACCEPT, TCP_REQUEST_BACKLOG, proxy_context->tcp_listener_handle); } if (proxy_context->tcp_conn_listener == NULL) { logger(proxy_context, LOG_ERR, "Unable to bind (TCP): [%s]", evutil_socket_error_to_string(evutil_socket_geterror( proxy_context->tcp_listener_handle))); return -1; } #ifdef TCP_FASTOPEN setsockopt(evconnlistener_get_fd(proxy_context->tcp_conn_listener), IPPROTO_TCP, TCP_FASTOPEN, (void *) (int[]) { TCP_FASTOPEN_QUEUES }, sizeof (int)); #endif if (evconnlistener_disable(proxy_context->tcp_conn_listener) != 0) { evconnlistener_free(proxy_context->tcp_conn_listener); proxy_context->tcp_conn_listener = NULL; return -1; } evconnlistener_set_error_cb(proxy_context->tcp_conn_listener, tcp_accept_error_cb); TAILQ_INIT(&proxy_context->tcp_request_queue); return 0; } int tcp_listener_start(ProxyContext * const proxy_context) { assert(proxy_context->tcp_conn_listener != NULL); if (evconnlistener_enable(proxy_context->tcp_conn_listener) != 0) { return -1; } return 0; } void tcp_listener_stop(ProxyContext * const proxy_context) { if (proxy_context->tcp_conn_listener == NULL) { return; } evconnlistener_free(proxy_context->tcp_conn_listener); proxy_context->tcp_conn_listener = NULL; while (tcp_listener_kill_oldest_request(proxy_context) == 0) { } logger_noformat(proxy_context, LOG_INFO, "TCP listener shut down"); } dnscrypt-proxy-1.9.4/src/proxy/tcp_request.h000644 000765 000024 00000001122 13037731714 020627 0ustar00jstaff000000 000000 #ifndef __TCP_REQUEST_H__ #define __TCP_REQUEST_H__ 1 #include "dnscrypt_proxy.h" #define DNS_MAX_PACKET_SIZE_TCP (65535U + 2U) #ifndef TCP_REQUEST_BACKLOG # define TCP_REQUEST_BACKLOG 128 #endif #ifndef TCP_FASTOPEN_QUEUES # ifdef __APPLE__ # define TCP_FASTOPEN_QUEUES 1 # else # define TCP_FASTOPEN_QUEUES 5 # endif #endif int tcp_listener_bind(ProxyContext * const proxy_context); int tcp_listener_start(ProxyContext * const proxy_context); void tcp_listener_stop(ProxyContext * const proxy_context); int tcp_listener_kill_oldest_request(ProxyContext * const proxy_context); #endif dnscrypt-proxy-1.9.4/src/proxy/tcp_request_p.h000644 000765 000024 00000001763 13037731714 021161 0ustar00jstaff000000 000000 #ifndef __TCP_REQUEST_H_P__ #define __TCP_REQUEST_H_P__ 1 #include #include #include #include "dnscrypt.h" #include "queue.h" typedef struct TCPRequestStatus_ { _Bool has_dns_query_len : 1; _Bool has_dns_reply_len : 1; _Bool is_in_queue : 1; _Bool is_dying : 1; } TCPRequestStatus; typedef struct TCPRequest_ { uint8_t client_nonce[crypto_box_HALF_NONCEBYTES]; TAILQ_ENTRY(TCPRequest_) queue; #ifdef PLUGINS struct sockaddr_storage client_sockaddr; #endif struct bufferevent *client_proxy_bev; struct bufferevent *proxy_resolver_bev; struct evbuffer *proxy_resolver_query_evbuf; ProxyContext *proxy_context; struct event *timeout_timer; #ifdef PLUGINS ev_socklen_t client_sockaddr_len; #endif TCPRequestStatus status; size_t dns_query_len; size_t dns_reply_len; } TCPRequest; #endif dnscrypt-proxy-1.9.4/src/proxy/udp_request.c000644 000765 000024 00000052344 13037731714 020640 0ustar00jstaff000000 000000 #include #include #ifdef _WIN32 # include #else # include # include # include # include #endif #include #include #include #include #include #include #include #include #include "dnscrypt_client.h" #include "dnscrypt_proxy.h" #include "edns.h" #include "logger.h" #include "probes.h" #include "queue.h" #include "sandboxes.h" #include "tcp_request.h" #include "udp_request.h" #include "udp_request_p.h" #include "utils.h" #ifdef PLUGINS # include "plugin_support.h" #endif static void udp_request_free(UDPRequest * const udp_request) { ProxyContext *proxy_context; if (udp_request->timeout_timer != NULL) { event_free(udp_request->timeout_timer); udp_request->timeout_timer = NULL; } DNSCRYPT_PROXY_REQUEST_UDP_DONE(udp_request); proxy_context = udp_request->proxy_context; if (udp_request->status.is_in_queue != 0) { assert(! TAILQ_EMPTY(&proxy_context->udp_request_queue)); TAILQ_REMOVE(&proxy_context->udp_request_queue, udp_request, queue); assert(proxy_context->connections_count > 0U); proxy_context->connections_count--; DNSCRYPT_PROXY_STATUS_REQUESTS_ACTIVE(proxy_context->connections_count, proxy_context->connections_count_max); } udp_request->proxy_context = NULL; free(udp_request); } static void udp_request_kill(UDPRequest * const udp_request) { if (udp_request == NULL || udp_request->status.is_dying) { return; } udp_request->status.is_dying = 1; udp_request_free(udp_request); } static int udp_send(SendtoWithRetryCtx * const ctx); static int udp_send(SendtoWithRetryCtx * const ctx) { void (*cb)(UDPRequest *udp_request); UDPRequest *udp_request = ctx->udp_request; (void) sendto(ctx->handle, ctx->buffer, ctx->length, ctx->flags, ctx->dest_addr, ctx->dest_len); cb = ctx->cb; if (cb) { cb(udp_request); } return 0; } static void resolver_to_proxy_cb(evutil_socket_t proxy_resolver_handle, short ev_flags, void * const proxy_context_) { uint8_t dns_reply[DNS_MAX_PACKET_SIZE_UDP]; ProxyContext *proxy_context = proxy_context_; UDPRequest *scanned_udp_request; UDPRequest *udp_request = NULL; struct sockaddr_storage resolver_sockaddr; ev_socklen_t resolver_sockaddr_len = sizeof resolver_sockaddr; ssize_t nread; size_t dns_reply_len = (size_t) 0U; size_t uncurved_len; (void) ev_flags; nread = recvfrom(proxy_resolver_handle, (void *) dns_reply, sizeof dns_reply, 0, (struct sockaddr *) &resolver_sockaddr, &resolver_sockaddr_len); if (nread < (ssize_t) 0) { const int err = evutil_socket_geterror(proxy_resolver_handle); if (!EVUTIL_ERR_RW_RETRIABLE(err)) { logger(proxy_context, LOG_WARNING, "recvfrom(resolver): [%s]", evutil_socket_error_to_string(err)); } DNSCRYPT_PROXY_REQUEST_UDP_NETWORK_ERROR(NULL); return; } if (evutil_sockaddr_cmp((const struct sockaddr *) &resolver_sockaddr, (const struct sockaddr *) &proxy_context->resolver_sockaddr, 1) != 0) { logger_noformat(proxy_context, LOG_DEBUG, "Received a resolver reply from a different resolver"); return; } TAILQ_FOREACH(scanned_udp_request, &proxy_context->udp_request_queue, queue) { if (dnscrypt_cmp_client_nonce(scanned_udp_request->client_nonce, dns_reply, (size_t) nread) == 0) { udp_request = scanned_udp_request; break; } } if (udp_request == NULL) { logger(proxy_context, LOG_DEBUG, "Received a reply that doesn't match any active query"); return; } if (nread < (ssize_t) (DNS_HEADER_SIZE + dnscrypt_response_header_size()) || nread > (ssize_t) sizeof dns_reply) { logger_noformat(proxy_context, LOG_WARNING, "Short reply received"); udp_request_kill(udp_request); return; } DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_REPLIED(udp_request); dns_reply_len = (size_t) nread; assert(dns_reply_len <= sizeof dns_reply); uncurved_len = dns_reply_len; DNSCRYPT_PROXY_REQUEST_UNCURVE_START(udp_request, uncurved_len); if (dnscrypt_client_uncurve (&udp_request->proxy_context->dnscrypt_client, udp_request->client_nonce, dns_reply, &uncurved_len) != 0) { DNSCRYPT_PROXY_REQUEST_UNCURVE_ERROR(udp_request); DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_GOT_INVALID_REPLY(udp_request); logger_noformat(udp_request->proxy_context, LOG_INFO, "Received a corrupted reply from the resolver"); udp_request_kill(udp_request); return; } DNSCRYPT_PROXY_REQUEST_UNCURVE_DONE(udp_request, uncurved_len); memset(udp_request->client_nonce, 0, sizeof udp_request->client_nonce); assert(uncurved_len <= dns_reply_len); dns_reply_len = uncurved_len; assert(dns_reply_len >= DNS_HEADER_SIZE); COMPILER_ASSERT(DNS_OFFSET_FLAGS < DNS_HEADER_SIZE); if ((dns_reply[DNS_OFFSET_FLAGS] & DNS_FLAGS_TC) != 0) { if (proxy_context->udp_current_max_size < proxy_context->udp_max_size) { COMPILER_ASSERT(DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND >= DNSCRYPT_BLOCK_SIZE); if (proxy_context->udp_max_size - proxy_context->udp_current_max_size > DNSCRYPT_BLOCK_SIZE) { proxy_context->udp_current_max_size += DNSCRYPT_BLOCK_SIZE; } else { proxy_context->udp_current_max_size = proxy_context->udp_max_size; } } } #ifdef PLUGINS const size_t max_reply_size_for_filter = sizeof dns_reply; DCPluginDNSPacket dcp_packet = { .client_sockaddr = &udp_request->client_sockaddr, .dns_packet = dns_reply, .dns_packet_len_p = &dns_reply_len, .client_sockaddr_len_s = (size_t) udp_request->client_sockaddr_len, .dns_packet_max_len = max_reply_size_for_filter }; DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_START(udp_request, dns_reply_len, max_reply_size_for_filter); assert(proxy_context->app_context->dcps_context != NULL); const DCPluginSyncFilterResult res = plugin_support_context_apply_sync_post_filters (proxy_context->app_context->dcps_context, &dcp_packet); assert(dns_reply_len > (size_t) 0U && dns_reply_len <= sizeof dns_reply && dns_reply_len <= max_reply_size_for_filter); if (res != DCP_SYNC_FILTER_RESULT_OK) { DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_ERROR(udp_request, res); udp_request_kill(udp_request); return; } DNSCRYPT_PROXY_REQUEST_PLUGINS_POST_DONE(udp_request, dns_reply_len, max_reply_size_for_filter); #endif udp_send(& (SendtoWithRetryCtx) { .udp_request = udp_request, .handle = udp_request->client_proxy_handle, .buffer = dns_reply, .length = dns_reply_len, .flags = 0, .dest_addr = (struct sockaddr *) &udp_request->client_sockaddr, .dest_len = udp_request->client_sockaddr_len, .cb = udp_request_kill }); } static void proxy_client_send_truncated(UDPRequest * const udp_request, uint8_t dns_reply[DNS_MAX_PACKET_SIZE_UDP], size_t dns_reply_len) { DNSCRYPT_PROXY_REQUEST_UDP_TRUNCATED(udp_request); assert(dns_reply_len > DNS_OFFSET_FLAGS2); dns_reply[DNS_OFFSET_FLAGS] |= DNS_FLAGS_TC | DNS_FLAGS_QR; dns_reply[DNS_OFFSET_FLAGS2] |= DNS_FLAGS2_RA; udp_send(& (SendtoWithRetryCtx) { .udp_request = udp_request, .handle = udp_request->client_proxy_handle, .buffer = dns_reply, .length = dns_reply_len, .flags = 0, .dest_addr = (struct sockaddr *) &udp_request->client_sockaddr, .dest_len = udp_request->client_sockaddr_len, .cb = udp_request_kill }); } static void timeout_timer_cb(evutil_socket_t timeout_timer_handle, short ev_flags, void * const udp_request_) { UDPRequest * const udp_request = udp_request_; (void) ev_flags; (void) timeout_timer_handle; DNSCRYPT_PROXY_REQUEST_UDP_TIMEOUT(udp_request); logger_noformat(udp_request->proxy_context, LOG_DEBUG, "resolver timeout (UDP)"); udp_request_kill(udp_request); } #ifndef SO_RCVBUFFORCE # define SO_RCVBUFFORCE SO_RCVBUF #endif #ifndef SO_SNDBUFFORCE # define SO_SNDBUFFORCE SO_SNDBUF #endif #ifndef IPTOS_DSCP_AF32 # define IPTOS_DSCP_AF32 0x70 #endif static void udp_tune(evutil_socket_t const handle) { if (handle == -1) { return; } setsockopt(handle, SOL_SOCKET, SO_RCVBUFFORCE, (void *) (int []) { UDP_BUFFER_SIZE }, sizeof (int)); setsockopt(handle, SOL_SOCKET, SO_SNDBUFFORCE, (void *) (int []) { UDP_BUFFER_SIZE }, sizeof (int)); #if defined(IP_PMTUDISC_OMIT) setsockopt(handle, IPPROTO_IP, IP_MTU_DISCOVER, (void *) (int []) { IP_PMTUDISC_OMIT }, sizeof (int)); #elif defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT) setsockopt(handle, IPPROTO_IP, IP_MTU_DISCOVER, (void *) (int []) { IP_PMTUDISC_DONT }, sizeof (int)); #elif defined(IP_DONTFRAG) setsockopt(handle, IPPROTO_IP, IP_DONTFRAG, (void *) (int []) { 0 }, sizeof (int)); #endif #ifdef IP_TOS setsockopt(handle, IPPROTO_IP, IP_TOS, (void *) (int []) { IPTOS_DSCP_AF32 }, sizeof (int)); #endif } static void client_to_proxy_cb_sendto_cb(UDPRequest * const udp_request) { (void) udp_request; DNSCRYPT_PROXY_REQUEST_UDP_PROXY_RESOLVER_START(udp_request); } #ifdef PLUGINS static void proxy_to_client_direct(UDPRequest * const udp_request, const uint8_t * const dns_reply, const size_t dns_reply_len) { udp_send(& (SendtoWithRetryCtx) { .udp_request = udp_request, .handle = udp_request->client_proxy_handle, .buffer = dns_reply, .length = dns_reply_len, .flags = 0, .dest_addr = (struct sockaddr *) &udp_request->client_sockaddr, .dest_len = udp_request->client_sockaddr_len, .cb = udp_request_kill }); } #endif static void client_to_proxy_cb(evutil_socket_t client_proxy_handle, short ev_flags, void * const proxy_context_) { uint8_t dns_query[DNS_MAX_PACKET_SIZE_UDP]; ProxyContext *proxy_context = proxy_context_; UDPRequest *udp_request; ssize_t curve_ret; ssize_t nread; size_t dns_query_len = (size_t) 0U; size_t max_query_size; size_t request_edns_payload_size; (void) ev_flags; assert(client_proxy_handle == proxy_context->udp_listener_handle); if ((udp_request = calloc((size_t) 1U, sizeof *udp_request)) == NULL) { return; } udp_request->proxy_context = proxy_context; udp_request->timeout_timer = NULL; udp_request->client_proxy_handle = client_proxy_handle; udp_request->client_sockaddr_len = sizeof udp_request->client_sockaddr; nread = recvfrom(client_proxy_handle, (void *) dns_query, sizeof dns_query, 0, (struct sockaddr *) &udp_request->client_sockaddr, &udp_request->client_sockaddr_len); if (nread < (ssize_t) 0) { const int err = evutil_socket_geterror(client_proxy_handle); if (!EVUTIL_ERR_RW_RETRIABLE(err)) { logger(proxy_context, LOG_DEBUG, "recvfrom(client): [%s]", evutil_socket_error_to_string(err)); } DNSCRYPT_PROXY_REQUEST_UDP_NETWORK_ERROR(udp_request); udp_request_kill(udp_request); return; } if (nread < (ssize_t) DNS_HEADER_SIZE || (size_t) nread > sizeof dns_query) { logger_noformat(proxy_context, LOG_WARNING, "Short query received"); free(udp_request); return; } if (proxy_context->connections_count >= proxy_context->connections_count_max) { DNSCRYPT_PROXY_REQUEST_UDP_OVERLOADED(); if (udp_listener_kill_oldest_request(proxy_context) != 0) { tcp_listener_kill_oldest_request(proxy_context); } } proxy_context->connections_count++; assert(proxy_context->connections_count <= proxy_context->connections_count_max); DNSCRYPT_PROXY_STATUS_REQUESTS_ACTIVE(proxy_context->connections_count, proxy_context->connections_count_max); DNSCRYPT_PROXY_REQUEST_UDP_START(udp_request); TAILQ_INSERT_TAIL(&proxy_context->udp_request_queue, udp_request, queue); memset(&udp_request->status, 0, sizeof udp_request->status); udp_request->status.is_in_queue = 1; dns_query_len = (size_t) nread; assert(dns_query_len <= sizeof dns_query); edns_add_section(proxy_context, dns_query, &dns_query_len, sizeof dns_query, &request_edns_payload_size); if (request_edns_payload_size < DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND) { max_query_size = DNS_MAX_PACKET_SIZE_UDP_NO_EDNS_SEND; } else { max_query_size = request_edns_payload_size; } if (max_query_size > sizeof dns_query) { max_query_size = sizeof dns_query; } assert(max_query_size <= sizeof dns_query); if (udp_request->proxy_context->tcp_only != 0) { proxy_client_send_truncated(udp_request, dns_query, dns_query_len); return; } #ifdef PLUGINS size_t max_query_size_for_filter = dns_query_len; const size_t header_size = dnscrypt_query_header_size(); if (max_query_size > DNSCRYPT_MAX_PADDING + header_size && max_query_size - (DNSCRYPT_MAX_PADDING + header_size) > dns_query_len) { max_query_size_for_filter = max_query_size - (DNSCRYPT_MAX_PADDING + header_size); } DCPluginDNSPacket dcp_packet = { .client_sockaddr = &udp_request->client_sockaddr, .dns_packet = dns_query, .dns_packet_len_p = &dns_query_len, .client_sockaddr_len_s = (size_t) udp_request->client_sockaddr_len, .dns_packet_max_len = max_query_size_for_filter }; DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_START(udp_request, dns_query_len, max_query_size_for_filter); assert(proxy_context->app_context->dcps_context != NULL); const DCPluginSyncFilterResult res = plugin_support_context_apply_sync_pre_filters (proxy_context->app_context->dcps_context, &dcp_packet); assert(dns_query_len > (size_t) 0U && dns_query_len <= max_query_size && dns_query_len <= max_query_size_for_filter); switch (res) { case DCP_SYNC_FILTER_RESULT_OK: break; case DCP_SYNC_FILTER_RESULT_DIRECT: DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_DONE(udp_request, dns_query_len, max_query_size_for_filter); proxy_to_client_direct(udp_request, dns_query, dns_query_len); return; default: DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_ERROR(udp_request, res); udp_request_kill(udp_request); return; } DNSCRYPT_PROXY_REQUEST_PLUGINS_PRE_DONE(udp_request, dns_query_len, max_query_size_for_filter); #endif assert(SIZE_MAX - DNSCRYPT_MAX_PADDING - dnscrypt_query_header_size() > dns_query_len); size_t max_len; max_len = proxy_context->udp_current_max_size; if (max_len > max_query_size) { max_len = max_query_size; } if (dns_query_len + dnscrypt_query_header_size() > max_len) { proxy_client_send_truncated(udp_request, dns_query, dns_query_len); return; } DNSCRYPT_PROXY_REQUEST_CURVE_START(udp_request, dns_query_len); curve_ret = dnscrypt_client_curve(&udp_request->proxy_context->dnscrypt_client, udp_request->client_nonce, dns_query, dns_query_len, max_len); if (curve_ret <= (ssize_t) 0) { DNSCRYPT_PROXY_REQUEST_CURVE_ERROR(udp_request); return; } dns_query_len = (size_t) curve_ret; assert(dns_query_len >= dnscrypt_query_header_size()); DNSCRYPT_PROXY_REQUEST_CURVE_DONE(udp_request, dns_query_len); assert(dns_query_len <= sizeof dns_query); udp_request->timeout_timer = evtimer_new(udp_request->proxy_context->event_loop, timeout_timer_cb, udp_request); if (udp_request->timeout_timer != NULL) { const struct timeval tv = { .tv_sec = (time_t) DNS_QUERY_TIMEOUT, .tv_usec = 0 }; evtimer_add(udp_request->timeout_timer, &tv); } udp_send(& (SendtoWithRetryCtx) { .udp_request = udp_request, .handle = proxy_context->udp_proxy_resolver_handle, .buffer = dns_query, .length = dns_query_len, .flags = 0, .dest_addr = (struct sockaddr *) &proxy_context->resolver_sockaddr, .dest_len = proxy_context->resolver_sockaddr_len, .cb = client_to_proxy_cb_sendto_cb }); } int udp_listener_kill_oldest_request(ProxyContext * const proxy_context) { if (TAILQ_EMPTY(&proxy_context->udp_request_queue)) { return -1; } udp_request_kill(TAILQ_FIRST(&proxy_context->udp_request_queue)); return 0; } int udp_listener_bind(ProxyContext * const proxy_context) { int optval = 1; if (proxy_context->udp_listener_handle == -1) { if ((proxy_context->udp_listener_handle = socket (proxy_context->local_sockaddr.ss_family, SOCK_DGRAM, IPPROTO_UDP)) == -1) { logger_noformat(proxy_context, LOG_ERR, "Unable to create a socket (UDP)"); return -1; } #if defined(__linux__) && defined(SO_REUSEPORT) && !defined(NO_REUSEPORT) setsockopt(proxy_context->udp_listener_handle, SOL_SOCKET, SO_REUSEPORT, &optval, sizeof(optval)); #endif if (bind(proxy_context->udp_listener_handle, (struct sockaddr *) &proxy_context->local_sockaddr, proxy_context->local_sockaddr_len) != 0) { logger(NULL, LOG_ERR, "Unable to bind (UDP) [%s]", evutil_socket_error_to_string(evutil_socket_geterror( proxy_context->udp_listener_handle))); evutil_closesocket(proxy_context->udp_listener_handle); proxy_context->udp_listener_handle = -1; return -1; } } evutil_make_socket_closeonexec(proxy_context->udp_listener_handle); evutil_make_socket_nonblocking(proxy_context->udp_listener_handle); udp_tune(proxy_context->udp_listener_handle); attach_udp_dnsq_bpf(proxy_context->udp_listener_handle); if ((proxy_context->udp_proxy_resolver_handle = socket (proxy_context->resolver_sockaddr.ss_family, SOCK_DGRAM, IPPROTO_UDP)) == -1) { logger_noformat(proxy_context, LOG_ERR, "Unable to create a socket to the resolver"); evutil_closesocket(proxy_context->udp_listener_handle); proxy_context->udp_listener_handle = -1; return -1; } evutil_make_socket_closeonexec(proxy_context->udp_proxy_resolver_handle); evutil_make_socket_nonblocking(proxy_context->udp_proxy_resolver_handle); udp_tune(proxy_context->udp_proxy_resolver_handle); TAILQ_INIT(&proxy_context->udp_request_queue); return 0; } int udp_listener_start(ProxyContext * const proxy_context) { assert(proxy_context->udp_listener_handle != -1); if ((proxy_context->udp_listener_event = event_new(proxy_context->event_loop, proxy_context->udp_listener_handle, EV_READ | EV_PERSIST, client_to_proxy_cb, proxy_context)) == NULL) { return -1; } if (event_add(proxy_context->udp_listener_event, NULL) != 0) { udp_listener_stop(proxy_context); return -1; } assert(proxy_context->udp_proxy_resolver_handle != -1); if ((proxy_context->udp_proxy_resolver_event = event_new(proxy_context->event_loop, proxy_context->udp_proxy_resolver_handle, EV_READ | EV_PERSIST, resolver_to_proxy_cb, proxy_context)) == NULL) { udp_listener_stop(proxy_context); return -1; } if (event_add(proxy_context->udp_proxy_resolver_event, NULL) != 0) { udp_listener_stop(proxy_context); return -1; } return 0; } void udp_listener_stop(ProxyContext * const proxy_context) { if (proxy_context->udp_proxy_resolver_event == NULL) { return; } event_free(proxy_context->udp_listener_event); proxy_context->udp_listener_event = NULL; event_free(proxy_context->udp_proxy_resolver_event); proxy_context->udp_proxy_resolver_event = NULL; while (udp_listener_kill_oldest_request(proxy_context) == 0) { } logger_noformat(proxy_context, LOG_INFO, "UDP listener shut down"); } dnscrypt-proxy-1.9.4/src/proxy/udp_request.h000644 000765 000024 00000001304 13037731714 020633 0ustar00jstaff000000 000000 #ifndef __UDP_REQUEST_H__ #define __UDP_REQUEST_H__ 1 #include "dnscrypt_proxy.h" #ifndef UDP_BUFFER_SIZE # define UDP_BUFFER_SIZE 2097152 #endif #ifndef UDP_DELAY_BETWEEN_RETRIES # define UDP_DELAY_BETWEEN_RETRIES 1 #endif #ifndef EVUTIL_ERR_RW_RETRIABLE # ifndef _WIN32 # define EVUTIL_ERR_RW_RETRIABLE(e) ((e) == EINTR || (e) == EAGAIN) # else # define EVUTIL_ERR_RW_RETRIABLE(e) ((e) == WSAEWOULDBLOCK || (e) == WSAEINTR) # endif #endif int udp_listener_bind(ProxyContext * const proxy_context); int udp_listener_start(ProxyContext * const proxy_context); void udp_listener_stop(ProxyContext * const proxy_context); int udp_listener_kill_oldest_request(ProxyContext * const proxy_context); #endif dnscrypt-proxy-1.9.4/src/proxy/udp_request_p.h000644 000765 000024 00000002133 13037731714 021153 0ustar00jstaff000000 000000 #ifndef __UDP_REQUEST_H_P__ #define __UDP_REQUEST_H_P__ 1 #include #include #include #include "dnscrypt.h" #include "queue.h" typedef struct UDPRequestStatus_ { _Bool is_dying : 1; _Bool is_in_queue : 1; } UDPRequestStatus; typedef struct UDPRequest_ { uint8_t client_nonce[crypto_box_HALF_NONCEBYTES]; TAILQ_ENTRY(UDPRequest_) queue; struct sockaddr_storage client_sockaddr; ProxyContext *proxy_context; struct event *timeout_timer; evutil_socket_t client_proxy_handle; ev_socklen_t client_sockaddr_len; UDPRequestStatus status; unsigned char retries; } UDPRequest; typedef struct SendtoWithRetryCtx_ { void (*cb) (UDPRequest *udp_request); const void *buffer; UDPRequest *udp_request; const struct sockaddr *dest_addr; evutil_socket_t handle; size_t length; ev_socklen_t dest_len; int flags; } SendtoWithRetryCtx; #endif dnscrypt-proxy-1.9.4/src/proxy/utils.c000644 000765 000024 00000007445 13037731714 017442 0ustar00jstaff000000 000000 #include #include #include #include #include #include #include #include #include #include "logger.h" #include "pathnames.h" #include "utils.h" uint64_t dnscrypt_hrtime(void) { struct timeval tv; uint64_t ts = (uint64_t) 0U; int ret; ret = evutil_gettimeofday(&tv, NULL); assert(ret == 0); if (ret == 0) { ts = (uint64_t) tv.tv_sec * 1000000U + (uint64_t) tv.tv_usec; } return ts; } #ifndef _WIN32 static unsigned int open_max(void) { long z; if ((z = (long) sysconf(_SC_OPEN_MAX)) < 0L) { logger_error(NULL, "_SC_OPEN_MAX"); return 2U; } return (unsigned int) z; } int closedesc_all(const int closestdin) { int fodder; if (closestdin != 0) { (void) close(0); if ((fodder = open(_PATH_DEVNULL, O_RDONLY)) == -1) { return -1; } (void) dup2(fodder, 0); if (fodder > 0) { (void) close(fodder); } } if ((fodder = open(_PATH_DEVNULL, O_WRONLY)) == -1) { return -1; } (void) dup2(fodder, 1); (void) dup2(1, 2); if (fodder > 2) { (void) close(fodder); } return 0; } int do_daemonize(void) { pid_t child; unsigned int i; if ((child = fork()) == (pid_t) -1) { logger_error(NULL, "Unable to fork() in order to daemonize"); return -1; } else if (child != (pid_t) 0) { _exit(0); } if (setsid() == (pid_t) -1) { logger_error(NULL, "Unable to setsid()"); } i = open_max(); do { if (isatty((int) i)) { (void) close((int) i); } i--; } while (i > 2U); if (closedesc_all(1) != 0) { logger_error(NULL, _PATH_DEVNULL " duplication"); return -1; } return 0; } #else /* _WIN32 */ int closedesc_all(const int closestdin) { (void) closestdin; return 0; } int do_daemonize(void) { return 0; } #endif #ifndef _WIN32 char * path_from_app_folder(const char *file_name) { assert(file_name != NULL); return strdup(file_name); } #else char * path_from_app_folder(const char *file_name) { WCHAR utf16_buf[16383 + 1]; char utf8_buf[65535 + 1]; char *utf8_buf_copy; char *chr_revpathsep; const char *chr_column; const char *chr_pathsep; size_t utf8_buf_copy_len; DWORD utf16_buf_len = (DWORD) sizeof utf16_buf; int utf8_buf_len = (int) sizeof utf8_buf; assert(file_name != NULL); if (((chr_pathsep = strchr(file_name, '/')) != NULL || (chr_pathsep = strchr(file_name, '\\')) != NULL) && (chr_pathsep == file_name || ((chr_column = strchr(file_name, ':')) != NULL && chr_column - file_name < chr_pathsep - file_name))) { return strdup(file_name); } if ((utf16_buf_len = GetModuleFileNameW(NULL, utf16_buf, utf16_buf_len - 1)) <= (DWORD) 0) { return NULL; } utf16_buf[utf16_buf_len] = (WCHAR) 0; utf8_buf_len = WideCharToMultiByte(CP_UTF8, 0, utf16_buf, -1, utf8_buf, utf8_buf_len, NULL, NULL); if (utf8_buf_len <= 0) { return NULL; } assert(utf8_buf[utf8_buf_len - 1] == 0); if ((chr_revpathsep = strrchr(utf8_buf, '/')) == NULL && (chr_revpathsep = strrchr(utf8_buf, '\\')) == NULL) { return strdup(file_name); } *(chr_revpathsep + 1U) = 0; utf8_buf_copy_len = strlen(utf8_buf) + strlen(file_name) + (size_t) 1U; if ((utf8_buf_copy = malloc(utf8_buf_copy_len)) == NULL) { return NULL; } evutil_snprintf(utf8_buf_copy, utf8_buf_copy_len, "%s%s", utf8_buf, file_name); return utf8_buf_copy; } #endif dnscrypt-proxy-1.9.4/src/proxy/utils.h000644 000765 000024 00000000460 13037731714 017435 0ustar00jstaff000000 000000 #ifndef __UTILS_H__ #define __UTILS_H__ 1 #include #include #define COMPILER_ASSERT(X) (void) sizeof(char[(X) ? 1 : -1]) uint64_t dnscrypt_hrtime(void); int closedesc_all(const int closestdin); int do_daemonize(void); char * path_from_app_folder(const char *file_name); #endif dnscrypt-proxy-1.9.4/src/proxy/windows_service.c000644 000765 000024 00000046026 13037731714 021512 0ustar00jstaff000000 000000 #include #include #include "app.h" #include "dnscrypt_proxy.h" #include "logger.h" #include "utils.h" #include "windows_service.h" #ifndef _WIN32 int main(int argc, char *argv[]) { return dnscrypt_proxy_main(argc, argv); } #else #include #include #include #include #include #include #include #include #include "logger.h" #include "utils.h" static char *windows_service_name; static SERVICE_STATUS service_status; static SERVICE_STATUS_HANDLE service_status_handle; static _Bool app_is_running_as_a_service; static void WINAPI control_handler(const DWORD wanted_state) { if (wanted_state == SERVICE_CONTROL_STOP && dnscrypt_proxy_loop_break() == 0) { service_status.dwCurrentState = SERVICE_STOPPED; } SetServiceStatus(service_status_handle, &service_status); } static char ** cmdline_clone_options(const int argc, char ** const argv) { char **argv_new; if (argc >= INT_MAX || (size_t) argc >= SIZE_MAX / sizeof *argv_new || (argv_new = calloc((unsigned int) argc + 1U, sizeof *argv_new)) == NULL) { return NULL; } memcpy(argv_new, argv, (unsigned int) (argc + 1U) * sizeof *argv_new); return argv_new; } static int cmdline_add_option(int * const argc_p, char *** const argv_p, const char * const arg) { char *arg_dup; char **argv_new; if (*argc_p >= INT_MAX || SIZE_MAX / sizeof *argv_new <= (unsigned int) (*argc_p + 2U)) { return -1; } if ((argv_new = realloc(*argv_p, (unsigned int) (*argc_p + 2U) * sizeof *argv_new)) == NULL) { return -1; } if ((arg_dup = strdup(arg)) == NULL) { free(argv_new); return -1; } argv_new[(*argc_p)++] = arg_dup; argv_new[*argc_p] = NULL; *argv_p = argv_new; logger(NULL, LOG_INFO, "Adding command-line option: [%s]", arg_dup); return 0; } typedef struct WindowsServiceParseMultiSzCb_ { void (*cb)(struct WindowsServiceParseMultiSzCb_ *, const char *string); int * const argc_p; char *** const argv_p; int * const err_p; } WindowsServiceParseMultiSzCb; static void windows_service_parse_multi_sz_cb(WindowsServiceParseMultiSzCb * const cb, const char *string) { assert(cb->cb == windows_service_parse_multi_sz_cb); *(cb->err_p) += cmdline_add_option(cb->argc_p, cb->argv_p, "--plugin"); *(cb->err_p) += cmdline_add_option(cb->argc_p, cb->argv_p, string); } static int windows_service_parse_multi_sz(WindowsServiceParseMultiSzCb * const cb, const char * const multi_sz, const size_t multi_sz_len) { const char *multi_sz_pnt = multi_sz; const char *zero; size_t len; size_t multi_sz_remaining_len = multi_sz_len; size_t zlen; while (multi_sz_remaining_len > (size_t) 0U && (zero = memchr(multi_sz_pnt, 0, multi_sz_remaining_len)) != NULL) { if ((len = (size_t) (zero - multi_sz_pnt)) > (size_t) 0U) { cb->cb(cb, multi_sz_pnt); } zlen = len + (size_t) 1U; assert(zlen <= multi_sz_remaining_len); multi_sz_remaining_len -= zlen; multi_sz_pnt += zlen; } return 0; } char * windows_service_registry_parameters_key(void) { static unsigned char *key; size_t sizeof_key; if (key != NULL) { return key; } sizeof_key = (sizeof WINDOWS_SERVICE_REGISTRY_PARAMETERS_PATH - 1) + strlen(get_windows_service_name()) + (sizeof WINDOWS_SERVICE_REGISTRY_PARAMETERS_NAME - 1) + 1; if ((key = malloc(sizeof_key)) == NULL) { exit(1); } evutil_snprintf(key, sizeof_key, "%s%s%s", WINDOWS_SERVICE_REGISTRY_PARAMETERS_PATH, get_windows_service_name(), WINDOWS_SERVICE_REGISTRY_PARAMETERS_NAME); return key; } static int windows_service_registry_read_multi_sz(const char * const key, WindowsServiceParseMultiSzCb * const cb) { BYTE *value = NULL; HKEY hk = NULL; DWORD value_len; DWORD value_type; if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, windows_service_registry_parameters_key(), (DWORD) 0, KEY_READ, &hk) != ERROR_SUCCESS) { return -1; } if (RegQueryValueEx(hk, key, 0, &value_type, NULL, &value_len) == ERROR_SUCCESS && value_type == (DWORD) REG_MULTI_SZ && value_len <= SIZE_MAX && value_len > (DWORD) 0 && (value = malloc((size_t) value_len)) != NULL) { if (RegQueryValueEx(hk, key, 0, &value_type, value, &value_len) != ERROR_SUCCESS || value_type != (DWORD) REG_MULTI_SZ) { free(value); value = NULL; } assert(value == NULL || value_len == 0 || (value_len > 0 && value[value_len - 1] == 0)); } RegCloseKey(hk); if (value == NULL) { return -1; } windows_service_parse_multi_sz(cb, (const char *) value, (size_t) value_len); free(value); return 0; } static int windows_service_registry_read_string(const char * const key, char ** const value_p) { BYTE *value = NULL; HKEY hk = NULL; DWORD value_len; DWORD value_type; *value_p = NULL; if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, windows_service_registry_parameters_key(), (DWORD) 0, KEY_READ, &hk) != ERROR_SUCCESS) { return -1; } if (RegQueryValueEx(hk, key, 0, &value_type, NULL, &value_len) == ERROR_SUCCESS && value_type == (DWORD) REG_SZ && value_len <= SIZE_MAX && value_len > (DWORD) 0 && (value = malloc((size_t) value_len)) != NULL) { if (RegQueryValueEx(hk, key, 0, &value_type, value, &value_len) != ERROR_SUCCESS || value_type != (DWORD) REG_SZ) { free(value); value = NULL; } assert(value == NULL || value_len == 0 || (value_len > 0 && value[value_len - 1] == 0)); } RegCloseKey(hk); *value_p = (char *) value; return - (value == NULL); } static int windows_service_registry_read_dword(const char * const key, DWORD * const value_p) { HKEY hk = NULL; DWORD value = 0; DWORD value_len = (DWORD) sizeof value; DWORD value_type; int ret = -1; *value_p = (DWORD) 0; if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, windows_service_registry_parameters_key(), (DWORD) 0, KEY_READ, &hk) != ERROR_SUCCESS) { return -1; } if (RegQueryValueEx(hk, key, 0, &value_type, (void *) &value, &value_len) == ERROR_SUCCESS && value_type == (DWORD) REG_DWORD) { *value_p = value; ret = 0; } RegCloseKey(hk); return ret; } static int windows_service_registry_write_string(const char * const key, const char * const value) { HKEY hk = NULL; size_t value_len; int ret = 0; value_len = strlen(value); if (value_len > 0x7fffffff) { return -1; } if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, windows_service_registry_parameters_key(), (DWORD) 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hk, NULL) != ERROR_SUCCESS) { return -1; } if (RegSetValueEx(hk, key, (DWORD) 0, REG_SZ, (const BYTE *) value, (DWORD) value_len) != ERROR_SUCCESS) { ret = -1; } RegCloseKey(hk); return ret; } static int windows_build_command_line_from_registry(int * const argc_p, char *** const argv_p) { char dword_string[sizeof "2147483648"]; char *string_value; DWORD dword_value; int err = 0; if ((*argv_p = cmdline_clone_options(*argc_p, *argv_p)) == NULL) { exit(1); } if (windows_service_registry_read_string ("ConfigFile", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, string_value); free(string_value); return -(err != 0); } if (windows_service_registry_read_string ("ResolversList", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, "--resolvers-list"); err += cmdline_add_option(argc_p, argv_p, string_value); free(string_value); } if (windows_service_registry_read_string ("ResolverName", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, "--resolver-name"); err += cmdline_add_option(argc_p, argv_p, string_value); free(string_value); } if (windows_service_registry_read_string ("LocalAddress", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, "--local-address"); err += cmdline_add_option(argc_p, argv_p, string_value); free(string_value); } if (windows_service_registry_read_string ("ProviderKey", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, "--provider-key"); err += cmdline_add_option(argc_p, argv_p, string_value); free(string_value); } if (windows_service_registry_read_string ("ProviderName", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, "--provider-name"); err += cmdline_add_option(argc_p, argv_p, string_value); free(string_value); } if (windows_service_registry_read_string ("ResolverAddress", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, "--resolver-address"); err += cmdline_add_option(argc_p, argv_p, string_value); free(string_value); } if (windows_service_registry_read_dword ("EDNSPayloadSize", &dword_value) == 0) { evutil_snprintf(dword_string, sizeof dword_string, "%ld", (long) dword_value); err += cmdline_add_option(argc_p, argv_p, "--edns-payload-size"); err += cmdline_add_option(argc_p, argv_p, dword_string); } if (windows_service_registry_read_dword ("MaxActiveRequests", &dword_value) == 0) { evutil_snprintf(dword_string, sizeof dword_string, "%ld", (long) dword_value); err += cmdline_add_option(argc_p, argv_p, "--max-active-requests"); err += cmdline_add_option(argc_p, argv_p, dword_string); } if (windows_service_registry_read_dword ("TCPOnly", &dword_value) == 0 && dword_value > (DWORD) 0) { err += cmdline_add_option(argc_p, argv_p, "--tcp-only"); } if (windows_service_registry_read_dword ("EphemeralKeys", &dword_value) == 0 && dword_value > (DWORD) 0) { err += cmdline_add_option(argc_p, argv_p, "--ephemeral-keys"); } if (windows_service_registry_read_dword ("IgnoreTimestamps", &dword_value) == 0 && dword_value > (DWORD) 0) { err += cmdline_add_option(argc_p, argv_p, "--ignore-timestamps"); } if (windows_service_registry_read_string ("ClientKeyFile", &string_value) == 0) { err += cmdline_add_option(argc_p, argv_p, "--client-key"); 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for (i = 0; i < argc; i++) { if (strcmp(argv[i], "--service-name") == 0) { if (i < argc - 1) { windows_service_name = argv[i + 1]; return 0; } else { logger_noformat(NULL, LOG_ERR, "Missing service name after --service-name"); exit(1); } } if (strncmp(argv[i], "--service-name=", sizeof "--service-name=" - 1) == 0) { windows_service_name = argv[i] + sizeof "--service-name=" - 1; if (*windows_service_name != 0) { return 0; } else { logger_noformat(NULL, LOG_ERR, "Missing service name after --service-name"); exit(1); } } } if ((windows_service_name = strdup(WINDOWS_SERVICE_NAME)) == NULL) { return -1; } return 0; } static void WINAPI service_main(DWORD argc_, LPTSTR *argv_) { char **argv = (char **) argv_; int argc = (int) argc_; if (argc != 0) { set_windows_service_name(argv[0]); } assert(argc_ < INT_MAX); if (windows_build_command_line_from_registry(&argc, &argv) != 0) { logger_noformat(NULL, LOG_ERR, "Unable to build a command line from the registry"); return; } memset(&service_status, 0, sizeof service_status); service_status.dwServiceType = SERVICE_WIN32; service_status.dwCurrentState = SERVICE_START_PENDING; service_status.dwControlsAccepted = SERVICE_ACCEPT_STOP; service_status_handle = RegisterServiceCtrlHandler(get_windows_service_name(), control_handler); if (service_status_handle == 0) { return; } service_status.dwCurrentState = SERVICE_RUNNING; SetServiceStatus(service_status_handle, &service_status); dnscrypt_proxy_main(argc, argv); } static int windows_main(int argc, char *argv[]) { static SERVICE_TABLE_ENTRY service_table[2]; if (init_windows_service_name(argc, argv) != 0) { return -1; } memcpy(service_table, (SERVICE_TABLE_ENTRY[2]) { { .lpServiceName = get_windows_service_name(), .lpServiceProc = service_main }, { .lpServiceName = NULL, .lpServiceProc = (void *) NULL } }, sizeof service_table); if (StartServiceCtrlDispatcher(service_table) == 0) { return dnscrypt_proxy_main(argc, argv); } app_is_running_as_a_service = 1; return 0; } int windows_service_uninstall(void) { SC_HANDLE scm_handle; SC_HANDLE service_handle; SERVICE_STATUS service_status; int ret = 0; scm_handle = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); if (scm_handle == NULL) { return -1; } service_handle = OpenService(scm_handle, get_windows_service_name(), DELETE | SERVICE_STOP); if (service_handle == NULL) { CloseServiceHandle(scm_handle); return 0; } ControlService(service_handle, SERVICE_CONTROL_STOP, &service_status); if (DeleteService(service_handle) == 0) { ret = -1; } CloseServiceHandle(service_handle); CloseServiceHandle(scm_handle); return ret; } static int windows_registry_install_with_config_file(const char *config_file) { char *config_file_path; int ret; if ((config_file_path = path_from_app_folder(config_file)) == NULL) { return -1; } ret = windows_service_registry_write_string("ConfigFile", config_file_path); free(config_file_path); return ret; } static int windows_registry_install(ProxyContext * const proxy_context) { if (proxy_context->resolvers_list != NULL) { windows_service_registry_write_string("ResolversList", proxy_context->resolvers_list); } if (proxy_context->resolver_name != NULL) { windows_service_registry_write_string("ResolverName", proxy_context->resolver_name); } if (proxy_context->local_ip != NULL) { windows_service_registry_write_string("LocalAddress", proxy_context->local_ip); } if (proxy_context->client_key_file != NULL) { windows_service_registry_write_string("ClientKeyFile", proxy_context->client_key_file); } if (proxy_context->log_file != NULL) { windows_service_registry_write_string("LogFile", proxy_context->log_file); } return 0; } static int register_service(void) { char self_path[MAX_PATH]; char self_path_quoted[2U + MAX_PATH]; SC_HANDLE scm_handle; SC_HANDLE service_handle; if (GetModuleFileName(NULL, self_path, MAX_PATH) <= (DWORD) 0) { return -1; } if (strchr(self_path, '"') != NULL) { return -1; } evutil_snprintf(self_path_quoted, sizeof self_path_quoted, "\"%s\"", self_path); scm_handle = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); if (scm_handle == NULL) { return -1; } service_handle = CreateService (scm_handle, get_windows_service_name(), get_windows_service_name(), SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, self_path_quoted, NULL, NULL, NULL, NULL, NULL); if (service_handle == NULL) { CloseServiceHandle(scm_handle); return -1; } StartService(service_handle, (DWORD) 0, NULL); CloseServiceHandle(service_handle); CloseServiceHandle(scm_handle); return 0; } int windows_service_install(ProxyContext * const proxy_context) { if (windows_registry_install(proxy_context) != 0) { logger_noformat(proxy_context, LOG_ERR, "Unable to set up registry keys"); return -1; } return register_service(); } int windows_service_install_with_config_file(ProxyContext * const proxy_context, const char * const config_file) { if (windows_registry_install_with_config_file(config_file) != 0) { logger_noformat(proxy_context, LOG_ERR, "Unable to set up registry keys for the config file"); return -1; } return register_service(); } int main(int argc, char *argv[]) { return windows_main(argc, argv); } #endif dnscrypt-proxy-1.9.4/src/proxy/windows_service.h000644 000765 000024 00000001614 13037731714 021511 0ustar00jstaff000000 000000 #ifndef __WINDOWS_SERVICE_H__ #define __WINDOWS_SERVICE_H__ 1 #ifndef WINDOWS_SERVICE_NAME # define WINDOWS_SERVICE_NAME "dnscrypt-proxy" #endif #define WINDOWS_SERVICE_REGISTRY_PARAMETERS_PATH \ "SYSTEM\\CurrentControlSet\\Services\\" #define WINDOWS_SERVICE_REGISTRY_PARAMETERS_NAME \ "\\Parameters" typedef enum WinOption_ { WIN_OPTION_INSTALL = 256, WIN_OPTION_INSTALL_WITH_CONFIG_FILE, WIN_OPTION_REINSTALL, WIN_OPTION_REINSTALL_WITH_CONFIG_FILE, WIN_OPTION_UNINSTALL, WIN_OPTION_SERVICE_NAME } WinOption; char *get_windows_service_name(void); char *windows_service_registry_parameters_key(void); int windows_service_install(ProxyContext * const proxy_context); int windows_service_install_with_config_file(ProxyContext * const proxy_context, const char * const config_file); int windows_service_uninstall(void); #endif dnscrypt-proxy-1.9.4/src/plugins/example/000755 000765 000024 00000000000 13040635352 020052 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/plugins/example-cache/000755 000765 000024 00000000000 13040635352 021113 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/plugins/example-ldns-aaaa-blocking/000755 000765 000024 00000000000 13040635352 023457 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/plugins/example-ldns-blocking/000755 000765 000024 00000000000 13040635352 022576 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/plugins/example-ldns-forwarding/000755 000765 000024 00000000000 13040635352 023150 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/plugins/example-logging/000755 000765 000024 00000000000 13040635352 021476 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/plugins/Makefile.am000644 000765 000024 00000000421 13037731714 020455 0ustar00jstaff000000 000000 SUBDIRS = \ example \ example-cache \ example-logging if USE_LDNS SUBDIRS += \ example-ldns-aaaa-blocking \ example-ldns-blocking \ example-ldns-forwarding \ vendor-specific/example-ldns-opendns-deviceid \ vendor-specific/example-ldns-opendns-set-client-ip endif dnscrypt-proxy-1.9.4/src/plugins/Makefile.in000644 000765 000024 00000047026 13040635303 020471 0ustar00jstaff000000 000000 # Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; 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Use either this option or the former, not both. # OpenDNSIP 203.0.113.1 src/plugins/vendor-specific/example-ldns-opendns-set-client-ip/example-ldns-opendns-set-client-ip.c000644 000765 000024 00000012115 13037731714 037011 0ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4 #include #ifndef _WIN32 # include # include # include #endif #include #include #include #include #ifdef _WIN32 # include #endif #include #include #include DCPLUGIN_MAIN(__FILE__); #define EDNS_HEADER "4f56" "0014" "4f444e5300" "00" #define EDNS_HEADER_CLIENT_IP "10" #define EDNS_CLIENT_IP "7f000001" #define EDNS_HEADER_FODDER "40" #define EDNS_FODDER "deadbeefabad1dea" #define EDNS_DATA EDNS_HEADER \ EDNS_HEADER_CLIENT_IP EDNS_CLIENT_IP EDNS_HEADER_FODDER EDNS_FODDER #define EDNS_CLIENT_IP_OFFSET (sizeof EDNS_HEADER - 1U + \ sizeof EDNS_HEADER_CLIENT_IP - 1U) #define EDNS_FODDER_OFFSET (sizeof EDNS_HEADER - 1U + \ sizeof EDNS_HEADER_CLIENT_IP - 1U + \ sizeof EDNS_CLIENT_IP - 1U + \ sizeof EDNS_HEADER_FODDER - 1U) const char * dcplugin_description(DCPlugin * const dcplugin) { return "Apply the OpenDNS settings defined for a specific IP address"; } const char * dcplugin_long_description(DCPlugin * const dcplugin) { return "The IP address must be an IPv4 address.\n" "\n" "Usage:\n" "\n" "# dnscrypt-proxy --plugin \\\n" " libdcplugin_example_ldns_opendns_set_client_ip.la,192.30.252.130"; } static int _inet_pton(const int af, const char * const src, void * const dst) { unsigned char *dstc; unsigned int a, b, c, d; char more; if (af != AF_INET) { errno = EAFNOSUPPORT; return -1; } if (sscanf(src, "%u.%u.%u.%u%c", &a, &b, &c, &d, &more) != 4) { return 0; } if (a > 0xff || b > 0xff || c > 0xff || d > 0xff) { return 0; } dstc = (unsigned char *) dst; assert(sizeof(struct in_addr) >= 4U); dstc[0] = (unsigned char) a; dstc[1] = (unsigned char) b; dstc[2] = (unsigned char) c; dstc[3] = (unsigned char) d; return 1; } static void ip4tohex(char hex[4 * 2 + 1], unsigned char ip[4]) { static const char HEX[16] = "0123456789ABCDEF"; size_t i; for (i = 0U; i < 4U; i++) { hex[i * 2U] = HEX[(ip[i] >> 4) & 0xf]; hex[i * 2U + 1U] = HEX[ip[i] & 0xf]; } hex[i * 2U] = 0; } static int parse_client_ip(const char *ip_s, char * const edns_hex) { char ip_hex[8U + 1U]; struct in_addr ip_in_addr; unsigned char *sa; const size_t ip_s_len = strlen(ip_s); if (ip_s_len <= INET_ADDRSTRLEN && strchr(ip_s, '.') != NULL && _inet_pton(AF_INET, ip_s, &ip_in_addr) > 0) { sa = (unsigned char *) &ip_in_addr.s_addr; ip4tohex(ip_hex, sa); memcpy(edns_hex + EDNS_CLIENT_IP_OFFSET, ip_hex, sizeof EDNS_CLIENT_IP - 1U); } else if (ip_s_len == sizeof EDNS_CLIENT_IP - 1U) { memcpy(edns_hex + EDNS_CLIENT_IP_OFFSET, ip_s, sizeof EDNS_CLIENT_IP - 1U); } else { return -1; } return 0; } int dcplugin_init(DCPlugin * const dcplugin, int argc, char *argv[]) { char *edns_hex; size_t edns_hex_size = sizeof EDNS_DATA; ldns_init_random(NULL, 0U); edns_hex = malloc(edns_hex_size); dcplugin_set_user_data(dcplugin, edns_hex); if (edns_hex == NULL) { return -1; } memcpy(edns_hex, EDNS_DATA, edns_hex_size); assert(sizeof EDNS_CLIENT_IP - 1U == (size_t) 8U); if (argc > 1 && argv[1] != NULL) { parse_client_ip(argv[1], edns_hex); } return 0; } int dcplugin_destroy(DCPlugin *dcplugin) { free(dcplugin_get_user_data(dcplugin)); return 0; } static void fill_with_random_hex_data(char * const str, size_t size) { size_t i = (size_t) 0U; uint16_t rnd; while (i < size) { rnd = ldns_get_random(); str[i++] = "0123456789abcdef"[rnd & 0xf]; str[i++] = "0123456789abcdef"[(rnd >> 8) & 0xf]; } } DCPluginSyncFilterResult dcplugin_sync_pre_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { uint8_t *new_packet; ldns_rdf *edns_data; char *edns_data_str; ldns_pkt *packet = NULL; size_t new_packet_size; if (ldns_wire2pkt(&packet, dcplugin_get_wire_data(dcp_packet), dcplugin_get_wire_data_len(dcp_packet)) != LDNS_STATUS_OK) { return DCP_SYNC_FILTER_RESULT_ERROR; } edns_data_str = dcplugin_get_user_data(dcplugin); fill_with_random_hex_data(edns_data_str + EDNS_FODDER_OFFSET, sizeof EDNS_FODDER - 1U); edns_data = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_HEX, edns_data_str); ldns_pkt_set_edns_data(packet, edns_data); if (ldns_pkt2wire(&new_packet, packet, &new_packet_size) != LDNS_STATUS_OK) { return DCP_SYNC_FILTER_RESULT_ERROR; 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That password can be retrieved with the ## following command: "dig TXT debug.opendns.com." while using the VPN or their ## proprietary client, next to the "device:" line. The password is also visible ## in the command-line of the dnscrypt-proxy process when running that client. ## The value for this property is the path to a file containing the password. # OpenDNSPasswordFile /etc/umbrella-password.txt src/plugins/vendor-specific/example-ldns-opendns-deviceid/example-ldns-opendns-deviceid.c000644 000765 000024 00000007250 13037731714 035213 0ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4 #include #include #include #include #ifdef _WIN32 # include #endif #include #include DCPLUGIN_MAIN(__FILE__); #define EDNS_HEADER "0004000f4f70656e444e53" #define EDNS_DEV_ID "cafebabedeadbeef" const char * dcplugin_description(DCPlugin * const dcplugin) { return "Add an OpenDNS device identifier to outgoing queries"; } const char * dcplugin_long_description(DCPlugin * const dcplugin) { return "This plugin tags outgoing packets with the 8 bytes password,\n" "that the OpenDNS Umbrella service uses to identify their users.\n" "\n" "If you happen to have an OpenDNS VPN or Umbrella account,\n" "your password ('device') can be displayed with:\n" "\n" "$ dig txt debug.opendns.com.\n" "\n" "# dnscrypt-proxy --plugin \\\n" " libdcplugin_example_ldns_opendns_deviceid.la,/etc/umbrella-password.txt\n" "\n" "The password should be present in the given file, as a hexadecimal string\n" "(16 hex characters).\n"; } static char * load_device_id_from_file(const char * const file_name) { FILE *fp; char *device_id; if ((fp = fopen(file_name, "r")) == NULL) { return NULL; } if ((device_id = calloc(1U, sizeof EDNS_DEV_ID)) == NULL) { return NULL; } if (fread(device_id, 1U, sizeof EDNS_DEV_ID, fp) != sizeof EDNS_DEV_ID) { free(device_id); return NULL; } fclose(fp); return device_id; } int dcplugin_init(DCPlugin * const dcplugin, int argc, char *argv[]) { char *device_id = NULL; char *device_id_env = NULL; char *edns_hex; size_t edns_hex_size = sizeof EDNS_HEADER EDNS_DEV_ID; edns_hex = malloc(sizeof EDNS_HEADER EDNS_DEV_ID); dcplugin_set_user_data(dcplugin, edns_hex); if (edns_hex == NULL) { return -1; } memcpy(edns_hex, EDNS_HEADER EDNS_DEV_ID, edns_hex_size); assert(sizeof EDNS_DEV_ID - 1U == (size_t) 16U); if (argc == 2U) { device_id = load_device_id_from_file(argv[1]); } if (device_id == NULL) { if ((device_id_env = getenv("OPENDNS_DEVICE_ID")) == NULL) { return -1; } if ((device_id = strdup(device_id_env)) == NULL) { return -1; } } if (device_id != NULL) { memcpy(edns_hex + sizeof EDNS_HEADER - (size_t) 1U, device_id, sizeof EDNS_DEV_ID); free(device_id); } if (device_id_env != NULL) { memset(device_id_env, 0, strlen(device_id_env)); } return 0; } int dcplugin_destroy(DCPlugin *dcplugin) { free(dcplugin_get_user_data(dcplugin)); return 0; } DCPluginSyncFilterResult dcplugin_sync_pre_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { uint8_t *new_packet; ldns_rdf *edns_data; ldns_pkt *packet = NULL; size_t new_packet_size; if (ldns_wire2pkt(&packet, dcplugin_get_wire_data(dcp_packet), dcplugin_get_wire_data_len(dcp_packet)) != LDNS_STATUS_OK) { return DCP_SYNC_FILTER_RESULT_ERROR; } edns_data = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_HEX, dcplugin_get_user_data(dcplugin)); ldns_pkt_set_edns_data(packet, edns_data); if (ldns_pkt2wire(&new_packet, packet, &new_packet_size) != LDNS_STATUS_OK) { return DCP_SYNC_FILTER_RESULT_ERROR; } if (dcplugin_get_wire_data_max_len(dcp_packet) >= new_packet_size) { dcplugin_set_wire_data(dcp_packet, new_packet, new_packet_size); } free(new_packet); ldns_pkt_free(packet); return DCP_SYNC_FILTER_RESULT_OK; } dnscrypt-proxy-1.9.4/src/plugins/vendor-specific/example-ldns-opendns-deviceid/Makefile.am000644 000765 000024 00000001101 13037731714 031340 0ustar00jstaff000000 000000 EXTRA_DIST = \ CONFIGURATION.txt pkglib_LTLIBRARIES = \ libdcplugin_example_ldns_opendns_deviceid.la libdcplugin_example_ldns_opendns_deviceid_la_LIBTOOLFLAGS = --tag=disable-static libdcplugin_example_ldns_opendns_deviceid_la_SOURCES = \ example-ldns-opendns-deviceid.c libdcplugin_example_ldns_opendns_deviceid_la_LIBADD = @LDNS_LIBS@ libdcplugin_example_ldns_opendns_deviceid_la_LDFLAGS = \ $(AM_LDFLAGS) \ -avoid-version \ -export-dynamic \ -module \ -no-undefined libdcplugin_example_ldns_opendns_deviceid_la_CPPFLAGS = \ $(LTDLINCL) \ -I../../../include dnscrypt-proxy-1.9.4/src/plugins/vendor-specific/example-ldns-opendns-deviceid/Makefile.in000644 000765 000024 00000057756 13040635303 031373 0ustar00jstaff000000 000000 # Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; 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#ifndef putc_unlocked # define putc_unlocked(c, stream) putc((c), (stream)) #endif typedef struct Logging_ { FILE *fp; _Bool ltsv; } Logging; const char * dcplugin_description(DCPlugin * const dcplugin) { return "Log client queries"; } const char * dcplugin_long_description(DCPlugin * const dcplugin) { return "Log client queries\n" "\n" "This plugin logs the client queries to the standard output (default)\n" "or to a file.\n" "\n" "# dnscrypt-proxy --plugin libdcplugin_example_logging.la,/var/log/dns.log\n" "\n" "Prefixing the file name with ltsv: changes the log format to LTSV."; } int dcplugin_init(DCPlugin * const dcplugin, int argc, char *argv[]) { Logging *logging; if ((logging = calloc((size_t) 1U, sizeof *logging)) == NULL) { return -1; } dcplugin_set_user_data(dcplugin, logging); logging->ltsv = 0; if (argc != 2U) { logging->fp = stdout; } else { const char *file = argv[1]; if (strncmp(file, "ltsv:", (sizeof "ltsv:") - 1U) == 0) { logging->ltsv = 1; file += (sizeof "ltsv:") - 1U; } if ((logging->fp = fopen(file, "a")) == NULL) { return -1; } } return 0; } int dcplugin_destroy(DCPlugin * const dcplugin) { Logging *logging = dcplugin_get_user_data(dcplugin); if (logging == NULL) { return 0; } if (logging->fp != stdout) { fclose(logging->fp); } logging->fp = NULL; free(logging); return 0; } static int string_fprint(FILE * const fp, const unsigned char *str, const size_t size, _Bool lower) { int c; size_t i = (size_t) 0U; while (i < size) { c = (int) str[i++]; if (!isprint(c)) { fprintf(fp, "\\x%02x", (unsigned int) c); } else if (c == '\\') { if (lower) { c = tolower(c); } putc_unlocked(c, fp); } putc_unlocked(c, fp); } return 0; } static int ltsv_prop(FILE * const fp, const char * const prop, const Logging * const logging) { if (logging->ltsv == 0) { return 0; } fprintf(fp, "%s:", prop); return 0; } static int timestamp_fprint(FILE * const fp, _Bool unix_ts) { char now_s[128]; time_t now; struct tm *tm; if (time(&now) == (time_t) -1) { putc_unlocked('-', fp); return -1; } if (unix_ts) { fprintf(fp, "%lu", (unsigned long) now); } else { tm = localtime(&now); strftime(now_s, sizeof now_s, "%c", tm); fprintf(fp, "%s", now_s); } return 0; } static void util_ntohl(uint32_t * const xp) { uint8_t p[4U]; memcpy(p, xp, 4U); *xp = (((uint32_t) p[0]) << 24) | (((uint32_t) p[1]) << 16) | (((uint32_t) p[2]) << 8) | (((uint32_t) p[3])); } static int ip_fprint(FILE * const fp, const struct sockaddr_storage * const client_addr, const size_t client_addr_len) { if (client_addr->ss_family == AF_INET) { struct sockaddr_in in; uint32_t a; memcpy(&in, client_addr, sizeof in); a = (uint32_t) in.sin_addr.s_addr; util_ntohl(&a); fprintf(fp, "%u.%u.%u.%u", (a >> 24) & 0xff, (a >> 16) & 0xff, (a >> 8) & 0xff, a & 0xff); } else if (client_addr->ss_family == AF_INET6) { struct sockaddr_in6 in6; const unsigned char *a; int i; uint16_t w; _Bool blanks; memcpy(&in6, client_addr, sizeof in6); a = in6.sin6_addr.s6_addr; blanks = (a[0] | a[1]) == 0; putc_unlocked('[', fp); for (i = 0; i < 16; i += 2) { w = ((uint16_t) a[i] << 8) | (uint16_t) a[i + 1]; if (blanks) { if (w == 0U) { continue; } putc_unlocked(':', fp); blanks = 0; } if (i != 0) { putc_unlocked(':', fp); } if (blanks == 0) { fprintf(fp, "%x", (unsigned int) w); } } putc_unlocked(']', fp); } else { putc_unlocked('-', fp); } return 0; } DCPluginSyncFilterResult dcplugin_sync_pre_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { Logging *logging = dcplugin_get_user_data(dcplugin); const unsigned char *wire_data = dcplugin_get_wire_data(dcp_packet); size_t wire_data_len = dcplugin_get_wire_data_len(dcp_packet); size_t i = (size_t) 12U; size_t csize = (size_t) 0U; unsigned short type; unsigned char c; _Bool first = 1; if (wire_data_len < 15U || wire_data[4] != 0U || wire_data[5] != 1U) { return DCP_SYNC_FILTER_RESULT_ERROR; } ltsv_prop(logging->fp, "time", logging); timestamp_fprint(logging->fp, logging->ltsv); putc_unlocked('\t', logging->fp); ltsv_prop(logging->fp, "host", logging); ip_fprint(logging->fp, dcplugin_get_client_address(dcp_packet), dcplugin_get_client_address_len(dcp_packet)); putc_unlocked('\t', logging->fp); ltsv_prop(logging->fp, "message", logging); if (wire_data[i] == 0U) { putc_unlocked('.', logging->fp); } while (i < wire_data_len && (csize = wire_data[i]) != 0U && csize < wire_data_len - i) { i++; if (first != 0) { first = 0; } else { putc_unlocked('.', logging->fp); } string_fprint(logging->fp, &wire_data[i], csize, 1); i += csize; } type = 0U; if (i < wire_data_len - 2U) { type = (wire_data[i + 1U] << 8) + wire_data[i + 2U]; } putc_unlocked('\t', logging->fp); ltsv_prop(logging->fp, "type", logging); switch (type) { case 0x01: fprintf(logging->fp, "A\n"); break; case 0x02: fprintf(logging->fp, "NS\n"); break; case 0x06: fprintf(logging->fp, "SOA\n"); break; case 0x0c: fprintf(logging->fp, "PTR\n"); break; case 0x0f: fprintf(logging->fp, "MX\n"); break; case 0x10: fprintf(logging->fp, "TXT\n"); break; case 0x1c: fprintf(logging->fp, "AAAA\n"); break; case 0x21: fprintf(logging->fp, "SRV\n"); break; default: fprintf(logging->fp, "0x%02hx\n", type); } fflush(logging->fp); return DCP_SYNC_FILTER_RESULT_OK; } DCPluginSyncFilterResult dcplugin_sync_post_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { return DCP_SYNC_FILTER_RESULT_OK; } dnscrypt-proxy-1.9.4/src/plugins/example-logging/Makefile.am000644 000765 000024 00000000604 13037731714 023537 0ustar00jstaff000000 000000 pkglib_LTLIBRARIES = \ libdcplugin_example_logging.la libdcplugin_example_logging_la_LIBTOOLFLAGS = --tag=disable-static libdcplugin_example_logging_la_SOURCES = \ example-logging.c libdcplugin_example_logging_la_LDFLAGS = \ $(AM_LDFLAGS) \ -avoid-version \ -export-dynamic \ -module \ -no-undefined libdcplugin_example_logging_la_CPPFLAGS = \ $(LTDLINCL) \ -I../../include dnscrypt-proxy-1.9.4/src/plugins/example-logging/Makefile.in000644 000765 000024 00000056110 13040635303 023542 0ustar00jstaff000000 000000 # Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; 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#define UPSTREAM_TIMEOUT_SEC 1 typedef struct Forwarder_ { ldns_resolver *resolver; char *domains; } Forwarder; static struct option getopt_long_options[] = { { "domains", 1, NULL, 'd' }, { "resolvers", 1, NULL, 'r' }, { NULL, 0, NULL, 0 } }; static const char *getopt_options = "dr"; const char * dcplugin_description(DCPlugin * const dcplugin) { return "Forward queries for some domains to specific resolvers"; } const char * dcplugin_long_description(DCPlugin * const dcplugin) { return "This plugin redirects queries for specific zones to a set of\n" "non-DNSCrypt resolvers. This can be useful for private zones that\n" "can only be resolved by a local DNS server.\n" "\n" "Plugin parameters:\n" "--domains=\" [...]\"\n" "--resolvers=\" [...]\"\n" "\n" "Requests are synchronous, so this plugin should not be enabled with\n" "untrusted clients."; } static void str_tolower(char *str) { while (*str != 0) { *str = (char) tolower((unsigned char) *str); str++; } } static char * skip_spaces(char *str) { while (*str != 0 && isspace((int) (unsigned char) *str)) { str++; } return str; } static char * skip_chars(char *str) { while (*str != 0 && !isspace((int) (unsigned char) *str)) { str++; } return str; } static char * trim(char *str) { char *ptr; char *s1; char *s2; str = skip_spaces(str); if (*str == 0) { return str; } s1 = skip_chars(str); if (*(s2 = skip_spaces(s1)) == 0) { *s1 = 0; return str; } *skip_chars(s2) = 0; return s2; } static int parse_domain_list(char ** const domains_p, char * const str) { char *domain = str; char *sep; char *tmp; char sc; size_t domain_len; size_t domains_size; domains_size = 0U; *domains_p = NULL; for (;;) { domain = skip_spaces(domain); sep = domain; for (;;) { if (*sep == 0) { sep = NULL; break; } if (isspace((unsigned char) *sep)) { break; } sep++; } if (sep != NULL) { sc = *sep; *sep = 0; } if (*(domain = trim(domain)) == 0) { return 0; } domain_len = strlen(domain); if (domain_len > 255U) { free(*domains_p); *domains_p = NULL; return -1; } if ((tmp = realloc(*domains_p, domains_size + 1U + domain_len + 1U)) == NULL) { if (sep != NULL) { *sep = sc; } free(*domains_p); *domains_p = NULL; return -1; } *domains_p = tmp; *((*domains_p) + domains_size) = (char) domain_len; memcpy((*domains_p) + 1U + domains_size, domain, domain_len); domains_size += 1U + domain_len; *((*domains_p) + domains_size) = (char) 0; domain += domain_len; if (sep != NULL) { domain++; *sep = sc; } } return 0; } static int parse_resolver_list(Forwarder * const forwarder, char * const str) { ldns_rdf *rdf; char *resolver = str; char *sep; char sc; for (;;) { resolver = skip_spaces(resolver); sep = resolver; for (;;) { if (*sep == 0) { sep = NULL; break; } if (isspace((unsigned char) *sep)) { break; } sep++; } if (sep != NULL) { sc = *sep; *sep = 0; } if (*(resolver = trim(resolver)) == 0) { return 0; } if ((rdf = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_AAAA, resolver)) == NULL && (rdf = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, resolver)) == NULL) { if (sep != NULL) { *sep = sc; } return -1; } (void) ldns_resolver_push_nameserver(forwarder->resolver, rdf); ldns_rdf_deep_free(rdf); resolver += strlen(resolver); if (sep != NULL) { resolver++; *sep = sc; } } } static _Bool has_matching_domain(const char *domains, const char *qname) { const char *scanned = domains; size_t scanned_len; size_t qname_len; if (domains == NULL || *domains == 0 || (qname_len = strlen(qname)) < 2U) { return 0; } qname_len--; while ((scanned_len = (size_t) *scanned) != 0U) { scanned++; if (scanned_len > qname_len || strncasecmp(scanned, qname + qname_len - scanned_len, scanned_len) != 0) { scanned += scanned_len; continue; } if (scanned_len == qname_len || *(qname + qname_len - scanned_len - 1U) == '.') { return 1; } scanned += scanned_len; } return 0; } int dcplugin_init(DCPlugin * const dcplugin, int argc, char *argv[]) { Forwarder *forwarder; char *resolvers = NULL; int opt_flag; int option_index = 0; forwarder = calloc(1U, sizeof *forwarder); forwarder->domains = NULL; forwarder->resolver = NULL; dcplugin_set_user_data(dcplugin, forwarder); if (forwarder == NULL) { return -1; } optind = 0; #ifdef _OPTRESET optreset = 1; #endif while ((opt_flag = getopt_long(argc, argv, getopt_options, getopt_long_options, &option_index)) != -1) { switch (opt_flag) { case 'd': if (parse_domain_list(&forwarder->domains, optarg) != 0) { return -1; } break; case 'r': resolvers = optarg; break; default: return -1; } } if (forwarder->domains == NULL || resolvers == NULL) { return -1; } if ((forwarder->resolver = ldns_resolver_new()) == NULL) { return -1; } if (parse_resolver_list(forwarder, resolvers) != 0) { ldns_resolver_deep_free(forwarder->resolver); forwarder->resolver = NULL; return -1; } ldns_resolver_set_retry(forwarder->resolver, 1); ldns_resolver_set_timeout(forwarder->resolver, (struct timeval) { .tv_sec = UPSTREAM_TIMEOUT_SEC, .tv_usec = 0 }); return 0; } int dcplugin_destroy(DCPlugin *dcplugin) { Forwarder *forwarder = dcplugin_get_user_data(dcplugin); if (forwarder == NULL) { return 0; } if (forwarder->resolver != NULL) { ldns_resolver_deep_free(forwarder->resolver); forwarder->resolver = NULL; } free(forwarder->domains); forwarder->domains = NULL; free(forwarder); return 0; } DCPluginSyncFilterResult dcplugin_sync_pre_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { Forwarder *forwarder = dcplugin_get_user_data(dcplugin); char *owner_str; ldns_pkt *query = NULL; uint8_t *query_wire; ldns_pkt *response = NULL; uint8_t *response_wire = NULL; ldns_rr *question; ldns_rr_list *questions; size_t response_wire_len; DCPluginSyncFilterResult result = DCP_SYNC_FILTER_RESULT_OK; query_wire = dcplugin_get_wire_data(dcp_packet); if (ldns_wire2pkt(&query, query_wire, dcplugin_get_wire_data_len(dcp_packet)) != LDNS_STATUS_OK) { return DCP_SYNC_FILTER_RESULT_ERROR; } questions = ldns_pkt_question(query); if (ldns_rr_list_rr_count(questions) != (size_t) 1U) { ldns_pkt_free(query); return DCP_SYNC_FILTER_RESULT_OK; } question = ldns_rr_list_rr(questions, 0U); if ((owner_str = ldns_rdf2str(ldns_rr_owner(question))) == NULL) { ldns_pkt_free(query); return DCP_SYNC_FILTER_RESULT_FATAL; } if (has_matching_domain(forwarder->domains, owner_str) == 0) { free(owner_str); ldns_pkt_free(query); return DCP_SYNC_FILTER_RESULT_OK; } free(owner_str); owner_str = NULL; if (ldns_send(&response, forwarder->resolver, query) != LDNS_STATUS_OK) { ldns_pkt_free(query); return DCP_SYNC_FILTER_RESULT_ERROR; } ldns_pkt_free(query); if (ldns_pkt2wire(&response_wire, response, &response_wire_len) != LDNS_STATUS_OK) { ldns_pkt_free(response); return DCP_SYNC_FILTER_RESULT_ERROR; } ldns_pkt_free(response); if (response_wire_len > dcplugin_get_wire_data_max_len(dcp_packet)) { free(response_wire); return DCP_SYNC_FILTER_RESULT_ERROR; } dcplugin_set_wire_data(dcp_packet, response_wire, response_wire_len); free(response_wire); return DCP_SYNC_FILTER_RESULT_DIRECT; } dnscrypt-proxy-1.9.4/src/plugins/example-ldns-forwarding/Makefile.am000644 000765 000024 00000000761 13037731714 025215 0ustar00jstaff000000 000000 pkglib_LTLIBRARIES = \ libdcplugin_example_ldns_forwarding.la libdcplugin_example_ldns_forwarding_la_LIBTOOLFLAGS = --tag=disable-static libdcplugin_example_ldns_forwarding_la_SOURCES = \ example-ldns-forwarding.c libdcplugin_example_ldns_forwarding_la_LIBADD = @LDNS_LIBS@ libdcplugin_example_ldns_forwarding_la_LDFLAGS = \ $(AM_LDFLAGS) \ -avoid-version \ -export-dynamic \ -module \ -no-undefined libdcplugin_example_ldns_forwarding_la_CPPFLAGS = \ $(LTDLINCL) \ -I../../include dnscrypt-proxy-1.9.4/src/plugins/example-ldns-forwarding/Makefile.in000644 000765 000024 00000057104 13040635303 025220 0ustar00jstaff000000 000000 # Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; 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#ifndef putc_unlocked # define putc_unlocked(c, stream) putc((c), (stream)) #endif #define MAX_QNAME_LENGTH 255U typedef enum BlockType { BLOCKTYPE_UNDEFINED, BLOCKTYPE_EXACT, BLOCKTYPE_PREFIX, BLOCKTYPE_SUFFIX, BLOCKTYPE_SUBSTRING } BlockType; typedef struct Blocking_ { FPST *domains; FPST *domains_rev; FPST *domains_substr; FPST *ips; FILE *fp; _Bool ltsv; } Blocking; static struct option getopt_long_options[] = { { "domains", 1, NULL, 'd' }, { "ips", 1, NULL, 'i' }, { "logfile", 1, NULL, 'l' }, { NULL, 0, NULL, 0 } }; static const char *getopt_options = "dil"; static char * skip_spaces(char *str) { while (*str != 0 && isspace((int) (unsigned char) *str)) { str++; } return str; } static char * skip_chars(char *str) { while (*str != 0 && !isspace((int) (unsigned char) *str)) { str++; } return str; } static void str_tolower(char *str) { while (*str != 0) { *str = (char) tolower((unsigned char) *str); str++; } } static void str_reverse(char *str) { size_t i = 0; size_t j = strlen(str); char t; while (i < j) { t = str[i]; str[i++] = str[--j]; str[j] = t; } } static char * untab(char *line) { char *ptr; while ((ptr = strchr(line, '\t')) != NULL) { *ptr = ' '; } return line; } static char * trim_comments(char *line) { char *ptr; char *s1; char *s2; while ((ptr = strchr(line, '\n')) != NULL || (ptr = strchr(line, '\r')) != NULL) { *ptr = 0; } line = skip_spaces(line); if (*line == 0 || *line == '#') { return NULL; } s1 = skip_chars(line); if (*(s2 = skip_spaces(s1)) == 0) { *s1 = 0; return line; } if (*s2 == '#') { return NULL; } *skip_chars(s2) = 0; return s2; } static void free_list(const char *key, uint32_t val) { (void) val; free((void *) key); } static int parse_domain_list(FPST ** const domain_list_p, FPST ** const domain_rev_list_p, FPST ** const domain_substr_list_p, const char * const file) { char buf[MAX_QNAME_LENGTH + 1U]; char *line; FILE *fp; char *ptr; FPST *domain_list; FPST *domain_rev_list; FPST *domain_substr_list; size_t line_len; BlockType block_type = BLOCKTYPE_UNDEFINED; int ret = -1; assert(domain_list_p != NULL); assert(domain_rev_list_p != NULL); assert(domain_substr_list_p != NULL); *domain_list_p = NULL; *domain_rev_list_p = NULL; *domain_substr_list_p = NULL; domain_list = fpst_new(); domain_rev_list = fpst_new(); domain_substr_list = fpst_new(); if ((fp = fopen(file, "r")) == NULL) { return -1; } while (fgets(buf, (int) sizeof buf, fp) != NULL) { if ((line = trim_comments(untab(buf))) == NULL || *line == 0) { continue; } line_len = strlen(line); if (line[0] == '*' && line[line_len - 1] == '*') { line[line_len - 1] = 0; line++; block_type = BLOCKTYPE_SUBSTRING; } else if (line[line_len - 1] == '*') { line[line_len - 1] = 0; block_type = BLOCKTYPE_PREFIX; } else { if (line[0] == '*') { line++; } if (line[0] == '.') { line++; } str_reverse(line); block_type = BLOCKTYPE_SUFFIX; } if (*line == 0) { continue; } str_tolower(line); if ((line = strdup(line)) == NULL) { break; } if (block_type == BLOCKTYPE_SUFFIX) { if ((domain_rev_list = fpst_insert_str(domain_rev_list, line, (uint32_t) block_type)) == NULL) { free(line); break; } } else if (block_type == BLOCKTYPE_PREFIX) { if ((domain_list = fpst_insert_str(domain_list, line, (uint32_t) block_type)) == NULL) { free(line); break; } } else if (block_type == BLOCKTYPE_SUBSTRING) { if ((domain_substr_list = fpst_insert_str(domain_substr_list, line, (uint32_t) block_type)) == NULL) { free(line); break; } } else { free(line); } } if (!feof(fp)) { fpst_free(domain_list, free_list); fpst_free(domain_rev_list, free_list); fpst_free(domain_substr_list, free_list); } else { *domain_list_p = domain_list; *domain_rev_list_p = domain_rev_list; *domain_substr_list_p = domain_substr_list; ret = 0; } fclose(fp); return ret; } static int parse_ip_list(FPST ** const ip_list_p, const char * const file) { char buf[MAX_QNAME_LENGTH + 1U]; char *line; FILE *fp; char *ptr; FPST *ip_list; size_t line_len; BlockType block_type = BLOCKTYPE_UNDEFINED; int ret = -1; assert(ip_list_p != NULL); *ip_list_p = NULL; ip_list = fpst_new(); if ((fp = fopen(file, "r")) == NULL) { return -1; } while (fgets(buf, (int) sizeof buf, fp) != NULL) { if ((line = trim_comments(untab(buf))) == NULL || *line == 0) { continue; } line_len = strlen(line); if (line[line_len - 1] == '*') { line[line_len - 1] = 0; block_type = BLOCKTYPE_PREFIX; } else { block_type = BLOCKTYPE_EXACT; } str_tolower(line); if ((line = strdup(line)) == NULL) { break; } if ((ip_list = fpst_insert_str(ip_list, line, (uint32_t) block_type)) == NULL) { free(line); break; } } if (!feof(fp)) { fpst_free(ip_list, free_list); } else { *ip_list_p = ip_list; ret = 0; } fclose(fp); return ret; } static _Bool substr_match(FPST *list, const char *str, const char **found_key_p, uint32_t *found_block_type_p) { size_t i; while (*str != 0) { if (fpst_str_starts_with_existing_key(list, str, found_key_p, found_block_type_p)) { return 1; } str++; } return 0; } const char * dcplugin_description(DCPlugin * const dcplugin) { return "Block specific domains and IP addresses"; } const char * dcplugin_long_description(DCPlugin * const dcplugin) { return "This plugin returns a REFUSED response if the query name is in a\n" "list of blacklisted names, or if at least one of the returned IP\n" "addresses happens to be in a list of blacklisted IPs.\n" "\n" "Plugin parameters:\n" "--domains=\n" "--ips=\n" "--logfile=[ltsv:]\n" "\n" "A file should list one entry per line.\n" "\n" "IPv4 and IPv6 addresses are supported.\n" "For names, leading and trailing wildcards (*) are also supported\n" "(e.g. *xxx*, *.example.com, ads.*)\n" "\n" "For IP addresses, trailing wildcards are supported\n" "(e.g. 192.168.*, 10.0.0.*)\n" "\n" "# dnscrypt-proxy --plugin \\\n" " libdcplugin_example.la,--ips=/etc/blk-ips,--domains=/etc/blk-names" "\n" "By default, logs are written in a human-readable format.\n" "Prepending ltsv: to the file name changes the log format to LTSV."; } int dcplugin_init(DCPlugin * const dcplugin, int argc, char *argv[]) { Blocking *blocking; int opt_flag; int option_index = 0; if ((blocking = calloc((size_t) 1U, sizeof *blocking)) == NULL) { return -1; } dcplugin_set_user_data(dcplugin, blocking); blocking->fp = NULL; blocking->domains = NULL; blocking->domains_rev = NULL; blocking->domains_substr = NULL; blocking->ips = NULL; blocking->ltsv = 0; optind = 0; #ifdef _OPTRESET optreset = 1; #endif while ((opt_flag = getopt_long(argc, argv, getopt_options, getopt_long_options, &option_index)) != -1) { switch (opt_flag) { case 'd': if (parse_domain_list(&blocking->domains, &blocking->domains_rev, &blocking->domains_substr, optarg) != 0) { return -1; } break; case 'i': if (parse_ip_list(&blocking->ips, optarg) != 0) { return -1; } break; case 'l': if (strncmp(optarg, "ltsv:", (sizeof "ltsv:") - 1U) == 0) { blocking->ltsv = 1; optarg += (sizeof "ltsv:") - 1U; } if ((blocking->fp = fopen(optarg, "a")) == NULL) { return -1; } break; default: return -1; } } return 0; } int dcplugin_destroy(DCPlugin * const dcplugin) { Blocking *blocking = dcplugin_get_user_data(dcplugin); if (blocking == NULL) { return 0; } fpst_free(blocking->domains, free_list); blocking->domains = NULL; fpst_free(blocking->domains_rev, free_list); blocking->domains_rev = NULL; fpst_free(blocking->domains_substr, free_list); blocking->domains_substr = NULL; fpst_free(blocking->ips, free_list); blocking->ips = NULL; if (blocking->fp != NULL) { fclose(blocking->fp); blocking->fp = NULL; } free(blocking); return 0; } static int ltsv_prop(FILE * const fp, const char * const prop, const Blocking * const blocking) { if (blocking->ltsv == 0) { return 0; } fprintf(fp, "%s:", prop); return 0; } static int timestamp_fprint(FILE * const fp, _Bool unix_ts) { char now_s[128]; time_t now; struct tm *tm; if (time(&now) == (time_t) -1) { putc_unlocked('-', fp); return -1; } if (unix_ts) { fprintf(fp, "%lu", (unsigned long) now); } else { tm = localtime(&now); strftime(now_s, sizeof now_s, "%c", tm); fprintf(fp, "%s", now_s); } return 0; } static void util_ntohl(uint32_t * const xp) { uint8_t p[4U]; memcpy(p, xp, 4U); *xp = (((uint32_t) p[0]) << 24) | (((uint32_t) p[1]) << 16) | (((uint32_t) p[2]) << 8) | (((uint32_t) p[3])); } static int ip_fprint(FILE * const fp, const struct sockaddr_storage * const client_addr, const size_t client_addr_len) { if (client_addr->ss_family == AF_INET) { struct sockaddr_in in; uint32_t a; memcpy(&in, client_addr, sizeof in); a = (uint32_t) in.sin_addr.s_addr; util_ntohl(&a); fprintf(fp, "%u.%u.%u.%u", (a >> 24) & 0xff, (a >> 16) & 0xff, (a >> 8) & 0xff, a & 0xff); } else if (client_addr->ss_family == AF_INET6) { struct sockaddr_in6 in6; const unsigned char *a; int i; uint16_t w; _Bool blanks; memcpy(&in6, client_addr, sizeof in6); a = in6.sin6_addr.s6_addr; blanks = (a[0] | a[1]) == 0; putc_unlocked('[', fp); for (i = 0; i < 16; i += 2) { w = ((uint16_t) a[i] << 8) | (uint16_t) a[i + 1]; if (blanks) { if (w == 0U) { continue; } putc_unlocked(':', fp); blanks = 0; } if (i != 0) { putc_unlocked(':', fp); } if (blanks == 0) { fprintf(fp, "%x", (unsigned int) w); } } putc_unlocked(']', fp); } else { putc_unlocked('-', fp); } return 0; } static int log_blocked_rr(const Blocking * const blocking, const char * const blocked_question, const char * const rule, BlockType block_type, const struct sockaddr_storage * const client_addr, const size_t client_addr_len) { if (blocking->fp == NULL) { return 0; } ltsv_prop(blocking->fp, "time", blocking); timestamp_fprint(blocking->fp, blocking->ltsv); putc_unlocked('\t', blocking->fp); ltsv_prop(blocking->fp, "host", blocking); ip_fprint(blocking->fp, client_addr, client_addr_len); putc_unlocked('\t', blocking->fp); ltsv_prop(blocking->fp, "qname", blocking); fprintf(blocking->fp, "%s\t", blocked_question); ltsv_prop(blocking->fp, "message", blocking); switch (block_type) { case BLOCKTYPE_PREFIX: fprintf(blocking->fp, "%s*\n", rule); break; case BLOCKTYPE_SUFFIX: fprintf(blocking->fp, "*%s\n", rule); break; case BLOCKTYPE_SUBSTRING: fprintf(blocking->fp, "*%s*\n", rule); break; default: fprintf(blocking->fp, "%s\n", rule); break; } fflush(blocking->fp); return 0; } void str_lcpy(char *dst, const char *src, size_t dsize) { size_t nleft = dsize; if (nleft != 0) { while (--nleft != 0) { if ((*dst++ = *src++) == 0) { break; } } } if (nleft == 0 && dsize != 0) { *dst = 0; } } static DCPluginSyncFilterResult apply_block_domains(DCPluginDNSPacket *dcp_packet, Blocking * const blocking, ldns_pkt * const packet) { char rev[MAX_QNAME_LENGTH + 1U]; ldns_rr *question; ldns_rr_list *questions; char *owner_str; const char *found_key; uint8_t *wire_data; size_t owner_str_len; uint32_t found_block_type; DCPluginSyncFilterResult result = DCP_SYNC_FILTER_RESULT_OK; _Bool block = 0; rev[MAX_QNAME_LENGTH] = 0; questions = ldns_pkt_question(packet); if (ldns_rr_list_rr_count(questions) != (size_t) 1U) { return DCP_SYNC_FILTER_RESULT_ERROR; } question = ldns_rr_list_rr(questions, 0U); if ((owner_str = ldns_rdf2str(ldns_rr_owner(question))) == NULL) { return DCP_SYNC_FILTER_RESULT_FATAL; } owner_str_len = strlen(owner_str); if (owner_str_len >= sizeof rev) { free(owner_str); return DCP_SYNC_FILTER_RESULT_ERROR; } if (owner_str_len > (size_t) 1U && owner_str[owner_str_len - 1U] == '.') { owner_str[--owner_str_len] = 0; } if (owner_str_len <= 0) { free(owner_str); return DCP_SYNC_FILTER_RESULT_OK; } str_tolower(owner_str); do { str_lcpy(rev, owner_str, sizeof rev); str_reverse(rev); if (fpst_starts_with_existing_key(blocking->domains_rev, rev, owner_str_len, &found_key, &found_block_type)) { const size_t found_key_len = strlen(found_key); assert(found_block_type == BLOCKTYPE_SUFFIX); if (found_key_len <= owner_str_len && (rev[found_key_len] == 0 || rev[found_key_len] == '.')) { block = 1; break; } } if (fpst_starts_with_existing_key(blocking->domains, owner_str, owner_str_len, &found_key, &found_block_type)) { assert(found_block_type == BLOCKTYPE_PREFIX); block = 1; break; } if (blocking->domains_substr != NULL && substr_match(blocking->domains_substr, owner_str, &found_key, &found_block_type)) { assert(found_block_type == BLOCKTYPE_SUBSTRING); block = 1; break; } } while (0); if (block) { wire_data = dcplugin_get_wire_data(dcp_packet); LDNS_QR_SET(wire_data); LDNS_RA_SET(wire_data); LDNS_RCODE_SET(wire_data, LDNS_RCODE_REFUSED); result = DCP_SYNC_FILTER_RESULT_DIRECT; if (found_block_type == BLOCKTYPE_SUFFIX) { str_lcpy(rev, found_key, sizeof rev); str_reverse(rev); log_blocked_rr(blocking, owner_str, rev, found_block_type, dcplugin_get_client_address(dcp_packet), dcplugin_get_client_address_len(dcp_packet)); } else { log_blocked_rr(blocking, owner_str, found_key, found_block_type, dcplugin_get_client_address(dcp_packet), dcplugin_get_client_address_len(dcp_packet)); } } free(owner_str); return result; } static DCPluginSyncFilterResult apply_block_ips(DCPluginDNSPacket *dcp_packet, Blocking * const blocking, ldns_pkt * const packet) { ldns_rr_list *answers; ldns_rr *answer; const char *found_key; char *answer_str; ldns_rr_type type; uint32_t found_block_type; size_t answers_count; size_t i; answers = ldns_pkt_answer(packet); answers_count = ldns_rr_list_rr_count(answers); for (i = (size_t) 0U; i < answers_count; i++) { answer = ldns_rr_list_rr(answers, i); type = ldns_rr_get_type(answer); if (type != LDNS_RR_TYPE_A && type != LDNS_RR_TYPE_AAAA) { continue; } if ((answer_str = ldns_rdf2str(ldns_rr_a_address(answer))) == NULL) { return DCP_SYNC_FILTER_RESULT_FATAL; } str_tolower(answer_str); if (fpst_str_starts_with_existing_key(blocking->ips, answer_str, &found_key, &found_block_type)) { if (found_block_type == BLOCKTYPE_PREFIX || strlen(found_key) == strlen(answer_str)) { LDNS_RCODE_SET(dcplugin_get_wire_data(dcp_packet), LDNS_RCODE_REFUSED); if (blocking->fp != NULL) { ldns_rr *question; ldns_rr_list *questions; char *owner_str; size_t owner_str_len; questions = ldns_pkt_question(packet); if (ldns_rr_list_rr_count(questions) != (size_t) 1U) { free(answer_str); return DCP_SYNC_FILTER_RESULT_ERROR; } question = ldns_rr_list_rr(questions, 0U); if ((owner_str = ldns_rdf2str(ldns_rr_owner(question))) == NULL) { free(answer_str); return DCP_SYNC_FILTER_RESULT_FATAL; } owner_str_len = strlen(owner_str); if (owner_str_len > (size_t) 1U && owner_str[owner_str_len - 1U] == '.') { owner_str[--owner_str_len] = 0; } log_blocked_rr(blocking, owner_str, found_key, found_block_type, dcplugin_get_client_address(dcp_packet), dcplugin_get_client_address_len(dcp_packet)); free(owner_str); } free(answer_str); answer_str = NULL; break; } } free(answer_str); } return DCP_SYNC_FILTER_RESULT_OK; } DCPluginSyncFilterResult dcplugin_sync_pre_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { Blocking *blocking = dcplugin_get_user_data(dcplugin); ldns_pkt *packet = NULL; DCPluginSyncFilterResult result = DCP_SYNC_FILTER_RESULT_OK; if (blocking->domains == NULL && blocking->domains_rev == NULL && blocking->domains_substr == NULL) { return DCP_SYNC_FILTER_RESULT_OK; } if (ldns_wire2pkt(&packet, dcplugin_get_wire_data(dcp_packet), dcplugin_get_wire_data_len(dcp_packet)) != LDNS_STATUS_OK) { return DCP_SYNC_FILTER_RESULT_ERROR; } if ((result = apply_block_domains(dcp_packet, blocking, packet)) != DCP_SYNC_FILTER_RESULT_OK) { ldns_pkt_free(packet); return result; } ldns_pkt_free(packet); return DCP_SYNC_FILTER_RESULT_OK; } DCPluginSyncFilterResult dcplugin_sync_post_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { Blocking *blocking = dcplugin_get_user_data(dcplugin); ldns_pkt *packet = NULL; DCPluginSyncFilterResult result = DCP_SYNC_FILTER_RESULT_OK; if (blocking->ips == NULL) { return DCP_SYNC_FILTER_RESULT_OK; } if (ldns_wire2pkt(&packet, dcplugin_get_wire_data(dcp_packet), dcplugin_get_wire_data_len(dcp_packet)) != LDNS_STATUS_OK) { return DCP_SYNC_FILTER_RESULT_ERROR; } if (blocking->ips != NULL && (result = apply_block_ips(dcp_packet, blocking, packet)) != DCP_SYNC_FILTER_RESULT_OK) { ldns_pkt_free(packet); return result; } ldns_pkt_free(packet); return DCP_SYNC_FILTER_RESULT_OK; } dnscrypt-proxy-1.9.4/src/plugins/example-ldns-blocking/fpst.c000644 000765 000024 00000016212 13037731714 023725 0ustar00jstaff000000 000000 #include #include #include #include typedef struct FPST { struct FPST *children; const char *key; uint16_t idx; uint16_t bitmap; uint32_t val; } FPST; #define FPST_DEFINED 1 #include "fpst.h" #ifdef __GNUC__ # define popcount(X) ((unsigned int) __builtin_popcount(X)) # define prefetch(X) __builtin_prefetch(X) #else # define prefetch(X) (void)(X) static inline unsigned int popcount(uint32_t w) { w -= (w >> 1) & 0x55555555; w = (w & 0x33333333) + ((w >> 2) & 0x33333333); w = (w + (w >> 4)) & 0x0f0f0f0f; w = (w * 0x01010101) >> 24; return w; } #endif static inline unsigned char fpst_quadbit_at(const char *str, size_t i) { unsigned char c; c = (unsigned char) str[i / 2]; if ((i & 1U) == 0U) { c >>= 4; } return c & 0xf; } static inline int fpst_bitmap_is_set(const FPST *t, size_t bit) { return (t->bitmap & (((uint16_t) 1U) << bit)) != 0U; } static inline void fpst_bitmap_set(FPST *t, size_t bit) { t->bitmap |= (((uint16_t) 1U) << bit); } static inline size_t fpst_actual_index(const FPST *t, size_t i) { const uint16_t b = t->bitmap & ((((uint16_t) 1U) << i) - 1U); return (size_t) popcount((uint32_t) b); } static inline FPST * fpst_child_get(FPST *t, size_t i) { if (!fpst_bitmap_is_set(t, i)) { return NULL; } return &t->children[fpst_actual_index(t, i)]; } static int fpst_child_set(FPST *t, FPST *v, size_t i) { FPST *previous; FPST *tmp; size_t ri; size_t rcount; size_t count; if ((previous = fpst_child_get(t, i)) != NULL) { *previous = *v; return 0; } count = (size_t) popcount(t->bitmap) + 1U; if ((tmp = (FPST *) realloc(t->children, count * (sizeof *t->children))) == NULL) { return -1; } t->children = tmp; ri = fpst_actual_index(t, i); if ((rcount = count - ri - 1U) > 0U) { memmove(&t->children[ri + 1U], &t->children[ri], rcount * (sizeof *t->children)); } t->children[ri] = *v; fpst_bitmap_set(t, i); return 0; } FPST * fpst_new(void) { return NULL; } FPST * fpst_insert(FPST *trie, const char *key, size_t len, uint32_t val) { FPST *new_node_p; FPST *t; const char *lk; FPST new_node, saved_node; size_t i; size_t j; unsigned char c; unsigned char x; if (len >= 0x7fff) { return NULL; } if (trie == NULL) { if ((new_node_p = (FPST *) malloc(sizeof *new_node_p)) == NULL) { return NULL; } new_node_p->key = key; new_node_p->val = val; new_node_p->idx = 0U; new_node_p->bitmap = 0U; new_node_p->children = NULL; return new_node_p; } t = trie; j = 0U; for (;;) { lk = t->key; x = 0U; for (; j <= len; j++) { x = ((unsigned char) lk[j]) ^ ((unsigned char) key[j]); if (x != 0U) { break; } } if (j > len && lk[j - 1] == 0) { assert(key[j - 1] == 0); t->val = val; return trie; } i = j * 2; if ((x & 0xf0) == 0U) { i++; } if (t->bitmap == 0U) { /* keep index from the new key */ } else if (i >= t->idx) { i = t->idx; j = i / 2; } else { saved_node = *t; t->key = key; t->val = val; t->idx = (uint16_t) i; t->bitmap = 0U; t->children = NULL; c = fpst_quadbit_at(lk, i); if (fpst_child_set(t, &saved_node, (size_t) c) != 0) { *t = saved_node; return NULL; } return trie; } prefetch(t->children); c = fpst_quadbit_at(key, i); if (!fpst_bitmap_is_set(t, c)) { break; } t = fpst_child_get(t, (size_t) c); } t->idx = (uint16_t) i; assert(!fpst_bitmap_is_set(t, c)); new_node.key = key; new_node.val = val; new_node.idx = 0U; new_node.bitmap = 0U; new_node.children = NULL; if (fpst_child_set(t, &new_node, (size_t) c) != 0) { return NULL; } return trie; } FPST * fpst_insert_str(FPST *trie, const char *key, uint32_t val) { return fpst_insert(trie, key, strlen(key), val); } int fpst_starts_with_existing_key(FPST *trie, const char *str, size_t len, const char **found_key_p, uint32_t *found_val_p) { FPST *t; const char *lk; size_t i; size_t j; unsigned char c; int ret = 0; if (trie == NULL) { return 0; } t = trie; j = 0U; for (;;) { lk = t->key; for (; j <= len; j++) { if (lk[j] != str[j]) { if (lk[j] == 0) { *found_key_p = t->key; *found_val_p = t->val; ret = 1; } break; } } if (j > len) { *found_key_p = t->key; *found_val_p = t->val; ret = 1; break; } if (t->bitmap == 0U) { break; } i = t->idx; if (i > len * 2) { break; } if (j > i / 2) { j = i / 2; } prefetch(t->children); c = fpst_quadbit_at(str, i); if (!fpst_bitmap_is_set(t, c)) { if (fpst_bitmap_is_set(t, 0U)) { c = 0U; } else { break; } } t = fpst_child_get(t, (size_t) c); } return ret; } int fpst_str_starts_with_existing_key(FPST *trie, const char *str, const char **found_key_p, uint32_t *found_val_p) { return fpst_starts_with_existing_key(trie, str, strlen(str), found_key_p, found_val_p); } static void fpst_free_node(FPST *t, FPST_FreeFn free_kv_fn) { size_t count; size_t i; if (t->bitmap == 0U) { assert(t->children == NULL); } count = (size_t) popcount(t->bitmap); for (i = 0; i < count; i++) { fpst_free_node(&t->children[i], free_kv_fn); } free(t->children); t->bitmap = 0U; t->children = NULL; free_kv_fn(t->key, t->val); t->key = NULL; } int fpst_has_key(FPST *trie, const char *key, size_t len, uint32_t *found_val_p) { const char *found_key; int ret; ret = fpst_starts_with_existing_key(trie, key, len, &found_key, found_val_p); if (ret > 0 && strlen(found_key) != len) { ret = 0; } return ret; } int fpst_has_key_str(FPST *trie, const char *key, uint32_t *found_val_p) { return fpst_has_key(trie, key, strlen(key), found_val_p); } void fpst_free(FPST *trie, FPST_FreeFn free_kv_fn) { if (trie == NULL) { return; } fpst_free_node(trie, free_kv_fn); free(trie); } dnscrypt-proxy-1.9.4/src/plugins/example-ldns-blocking/fpst.h000644 000765 000024 00000004042 13037731714 023730 0ustar00jstaff000000 000000 #ifndef fpst_H #define fpst_H 1 #include #include #ifndef FPST_DEFINED /** A trie */ typedef struct FPST FPST; #endif /** Type of the function pointer for `fpst_free()` */ typedef void (*FPST_FreeFn)(const char *key, uint32_t val); /** Returns an empty trie */ FPST *fpst_new(void); /** * Deallocates a trie, optionally calling `free_kv_fn` for each element. * `free_kv_fn` can be `NULL` if this is not necessary. */ void fpst_free(FPST *trie, FPST_FreeFn free_kv_fn); /** * Check if the string `str` of length `len` starts with one of the keys * present in the trie. Returns `1` if this is the case, `0` otherwise. * If `found_key_p` and/or `found_val_p` are not `NULL`, these are filled * with the longest matching key and its corresponding value. */ int fpst_starts_with_existing_key(FPST *t, const char *str, size_t len, const char **found_key_p, uint32_t *found_val_p); /** * Check if the zero-terminated string `str` starts with one of the keys * present in the trie. Returns `1` if this is the case, `0` otherwise. * If `found_key_p` and/or `found_val_p` are not `NULL`, these are filled * with the longest matching key and its corresponding value. */ int fpst_str_starts_with_existing_key(FPST *trie, const char *str, const char **found_key_p, uint32_t *found_val_p); /** Check if the exact key `key` of length `len` (`\0` not included) exists */ int fpst_has_key(FPST *trie, const char *key, size_t len, uint32_t *found_val_p); /** Check if the exact zero-terminated key `key` is present in the trie */ int fpst_has_key_str(FPST *trie, const char *key, uint32_t *found_val_p); /** * Inserts a key `key` of length `len` (not including the leading `\0`) * into the trie. */ FPST * fpst_insert(FPST *trie, const char *key, size_t len, uint32_t val); /** * Inserts a zero-terminated key `key` into the trie. */ FPST * fpst_insert_str(FPST *trie, const char *key, uint32_t val); #endif dnscrypt-proxy-1.9.4/src/plugins/example-ldns-blocking/Makefile.am000644 000765 000024 00000000761 13037731714 024643 0ustar00jstaff000000 000000 pkglib_LTLIBRARIES = \ libdcplugin_example_ldns_blocking.la libdcplugin_example_ldns_blocking_la_LIBTOOLFLAGS = --tag=disable-static libdcplugin_example_ldns_blocking_la_SOURCES = \ example-ldns-blocking.c fpst.c fpst.h libdcplugin_example_ldns_blocking_la_LIBADD = @LDNS_LIBS@ libdcplugin_example_ldns_blocking_la_LDFLAGS = \ $(AM_LDFLAGS) \ -avoid-version \ -export-dynamic \ -module \ -no-undefined libdcplugin_example_ldns_blocking_la_CPPFLAGS = \ $(LTDLINCL) \ -I../../include dnscrypt-proxy-1.9.4/src/plugins/example-ldns-blocking/Makefile.in000644 000765 000024 00000061642 13040635303 024650 0ustar00jstaff000000 000000 # Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; 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static struct option getopt_long_options[] = { { "min-ttl", 1, NULL, 't' }, { NULL, 0, NULL, 0 } }; static const char *getopt_options = "t:"; const char * dcplugin_description(DCPlugin * const dcplugin) { return "A basic DNS cache"; } const char * dcplugin_long_description(DCPlugin * const dcplugin) { return "This plugin implements a very basic DNS cache, designed to avoid\n" "sending the same queries multiple times in a row.\n" "\n" "Plugin parameters:\n" "--min-ttl=: minimum time to keep an entry cached, in seconds.\n" "\n" "Usage:\n" "\n" "# dnscrypt-proxy --plugin \\\n" " libdcplugin_example_cache\n"; } int dcplugin_init(DCPlugin * const dcplugin, int argc, char *argv[]) { Cache *cache; int opt_flag; int option_index = 0; if ((cache = calloc((size_t) 1U, sizeof *cache)) == NULL) { return -1; } cache->cache_entries_recent = cache->cache_entries_frequent = NULL; cache->cache_entries_max = DEFAULT_CACHE_ENTRIES_MAX; cache->min_ttl = DEFAULT_MIN_TTL; cache->now = (time_t) 0; dcplugin_set_user_data(dcplugin, cache); optind = 0; #ifdef _OPTRESET optreset = 1; #endif while ((opt_flag = getopt_long(argc, argv, getopt_options, getopt_long_options, &option_index)) != -1) { switch (opt_flag) { case 't': cache->min_ttl = atoi(optarg); break; default: return -1; } } return 0; } static void free_cache_entries(CacheEntry *cache_entries) { CacheEntry *cache_entry; CacheEntry *next; cache_entry = cache_entries; while (cache_entry != NULL) { next = cache_entry->next; free(cache_entry->response); cache_entry->response = NULL; free(cache_entry); cache_entry = next; } } static CacheEntry * _find_cached_entry(CacheEntry * const cache_entries, const uint8_t * const qname, const size_t qname_len, const uint16_t qtype) { CacheEntry *scanned_cache_entry = cache_entries; while (scanned_cache_entry != NULL) { if (memcmp(scanned_cache_entry->qname, qname, qname_len) == 0 && scanned_cache_entry->qtype == qtype) { break; } scanned_cache_entry = scanned_cache_entry->next; } return scanned_cache_entry; } static CacheEntry * find_cached_entry(Cache * const cache, const uint8_t * const qname, const size_t qname_len, const uint16_t qtype) { CacheEntry *scanned_cache_entry; if ((scanned_cache_entry = _find_cached_entry(cache->cache_entries_frequent, qname, qname_len, qtype)) == NULL) { scanned_cache_entry = _find_cached_entry(cache->cache_entries_recent, qname, qname_len, qtype); } return scanned_cache_entry; } static CacheEntry * _find_cached_entry_ext(CacheEntry * const cache_entries, const uint8_t * const qname, const size_t qname_len, const uint16_t qtype, size_t * const cache_entries_count_p, CacheEntry ** const last_cache_entry_p, CacheEntry ** const last_cache_entry_parent_p) { CacheEntry *scanned_cache_entry = cache_entries; *last_cache_entry_p = *last_cache_entry_parent_p = NULL; *cache_entries_count_p = 0; while (scanned_cache_entry != NULL) { (*cache_entries_count_p)++; *last_cache_entry_parent_p = *last_cache_entry_p; *last_cache_entry_p = scanned_cache_entry; if (memcmp(scanned_cache_entry->qname, qname, qname_len) == 0 && scanned_cache_entry->qtype == qtype) { break; } scanned_cache_entry = scanned_cache_entry->next; } return scanned_cache_entry; } static int _make_space_for_cache_entry(Cache * const cache, CacheEntry * const last_cache_entry, CacheEntry * const last_cache_entry_parent, const size_t cache_entries_count) { if (cache_entries_count < cache->cache_entries_max) { return 0; } if (last_cache_entry == NULL || last_cache_entry_parent == NULL) { return -1; } free(last_cache_entry->response); last_cache_entry->response = NULL; assert(last_cache_entry->next == NULL); assert(last_cache_entry_parent->next == last_cache_entry); free(last_cache_entry); last_cache_entry_parent->next = NULL; return 0; } static int make_space_for_cache_entry(Cache * const cache, CacheEntry * const cache_entries) { CacheEntry *scanned_cache_entry = cache_entries; CacheEntry *last_cache_entry = NULL; CacheEntry *last_cache_entry_parent = NULL; size_t cache_entries_count = 0; while (scanned_cache_entry != NULL) { cache_entries_count++; last_cache_entry_parent = last_cache_entry; last_cache_entry = scanned_cache_entry; scanned_cache_entry = scanned_cache_entry->next; } return _make_space_for_cache_entry(cache, last_cache_entry, last_cache_entry_parent, cache_entries_count); } static int replace_cache_entry(Cache * const cache, uint8_t * const wire_qname, const size_t qname_len, uint8_t * const wire_data, const size_t wire_data_len, const uint32_t ttl, const uint16_t qtype) { CacheEntry *cache_entry; CacheEntry *last_cache_entry; CacheEntry *last_cache_entry_parent; CacheEntry *scanned_cache_entry; uint8_t *response_tmp; size_t cache_entries_count; _Bool in_frequent = 1; scanned_cache_entry = _find_cached_entry_ext(cache->cache_entries_frequent, wire_qname, qname_len, qtype, &cache_entries_count, &last_cache_entry, &last_cache_entry_parent); if (scanned_cache_entry == NULL) { in_frequent = 0; scanned_cache_entry = _find_cached_entry_ext(cache->cache_entries_recent, wire_qname, qname_len, qtype, &cache_entries_count, &last_cache_entry, &last_cache_entry_parent); } if (scanned_cache_entry != NULL) { if (wire_data_len > scanned_cache_entry->response_len) { if ((response_tmp = realloc(scanned_cache_entry->response, wire_data_len)) == NULL) { return -1; } scanned_cache_entry->response = response_tmp; } memcpy(scanned_cache_entry->response, wire_data, wire_data_len); scanned_cache_entry->response_len = wire_data_len; scanned_cache_entry->deadline = cache->now + ttl; if (last_cache_entry_parent != NULL) { if (in_frequent == 0) { make_space_for_cache_entry(cache, cache->cache_entries_frequent); } assert(last_cache_entry_parent->next == scanned_cache_entry); last_cache_entry_parent->next = NULL; scanned_cache_entry->next = cache->cache_entries_frequent; cache->cache_entries_frequent = scanned_cache_entry; } return 0; } _make_space_for_cache_entry(cache, last_cache_entry, last_cache_entry_parent, cache_entries_count); if ((cache_entry = calloc((size_t) 1U, sizeof *cache_entry)) == NULL) { return -1; } memcpy(cache_entry->qname, wire_qname, qname_len); cache_entry->qtype = qtype; if ((cache_entry->response = malloc(wire_data_len)) == NULL) { free(cache_entry); return -1; } memcpy(cache_entry->response, wire_data, wire_data_len); cache_entry->response_len = wire_data_len; cache_entry->deadline = cache->now + ttl; cache_entry->next = cache->cache_entries_recent; cache->cache_entries_recent = cache_entry; return 0; } int dcplugin_destroy(DCPlugin * const dcplugin) { Cache *cache = dcplugin_get_user_data(dcplugin); if (cache == NULL) { return 0; } free_cache_entries(cache->cache_entries_recent); free_cache_entries(cache->cache_entries_frequent); cache->cache_entries_recent = cache->cache_entries_frequent = NULL; free(cache); return 0; } static void name_tolower(uint8_t *name) { while (*name != 0) { *name = (uint8_t) tolower(*name); name++; } } static int skip_name(const uint8_t * const dns_packet, const size_t dns_packet_len, size_t * const offset_p) { size_t offset = *offset_p; size_t name_len = (size_t) 0U; uint8_t label_len; if (dns_packet_len < (size_t) 1U || offset >= dns_packet_len - (size_t) 1U) { return -1; } for (;;) { label_len = dns_packet[offset]; if ((label_len & 0xc0) == 0xc0) { if (2U > dns_packet_len - offset) { return -1; } offset += 2U; break; } if (label_len >= dns_packet_len - offset - 1U) { return -1; } name_len += (size_t) label_len + (size_t) 1U; if (name_len > DNS_MAX_HOSTNAME_LEN) { return -1; } offset += label_len + 1U; if (label_len == 0U) { break; } } if (offset >= dns_packet_len) { return -1; } *offset_p = offset; return 0; } static int next_rr(const uint8_t * const dns_packet, const size_t dns_packet_len, const _Bool is_question, size_t * const name_len_p, size_t * const offset_p, uint16_t * const qtype_p, uint16_t * const qclass_p, uint32_t * const ttl_p) { size_t offset = *offset_p; uint16_t rdlen; if (skip_name(dns_packet, dns_packet_len, &offset) != 0) { return -1; } assert((offset - *offset_p) <= 0xffff); if (name_len_p != NULL) { *name_len_p = (size_t) (offset - *offset_p); } if ((is_question ? 4 : 10) > dns_packet_len - offset) { return -1; } if (qtype_p != NULL) { *qtype_p = (dns_packet[offset] << 8) | dns_packet[offset + 1]; } if (qclass_p != NULL) { *qclass_p = (dns_packet[offset + 2] << 8) | dns_packet[offset + 3]; } offset += 4; if (is_question == 0) { if (ttl_p != NULL) { *ttl_p = ((uint32_t) dns_packet[offset] << 24) | ((uint32_t) dns_packet[offset + 1] << 16) | ((uint32_t) dns_packet[offset + 2] << 8) | ((uint32_t) dns_packet[offset + 3]); } offset += 4; rdlen = (dns_packet[offset] << 8) | dns_packet[offset + 1]; offset += 2; if (rdlen > dns_packet_len - offset) { return -1; } offset += rdlen; } *offset_p = offset; return 0; } DCPluginSyncFilterResult dcplugin_sync_pre_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { uint8_t qname[DNS_MAX_HOSTNAME_LEN]; Cache *cache = dcplugin_get_user_data(dcplugin); CacheEntry *scanned_cache_entry; uint8_t *wire_qname; uint8_t *wire_data = dcplugin_get_wire_data(dcp_packet); size_t wire_data_len = dcplugin_get_wire_data_len(dcp_packet); size_t i = DNS_HEADER_SIZE; size_t qname_len; uint16_t qtype; uint16_t qclass; uint16_t tid; if (wire_data_len < 15U || wire_data[4] != 0U || wire_data[5] != 1U || wire_data[10] != 0 || wire_data[11] > 1) { return DCP_SYNC_FILTER_RESULT_ERROR; } wire_qname = &wire_data[i]; if (next_rr(wire_data, wire_data_len, 1, &qname_len, &i, &qtype, &qclass, NULL) != 0) { return DCP_SYNC_FILTER_RESULT_ERROR; } if (qclass != 1) { return DCP_SYNC_FILTER_RESULT_OK; } assert(qname_len <= sizeof qname); memcpy(qname, wire_qname, qname_len); name_tolower(qname); if (wire_data[11] == 1) { uint16_t opt_type; uint32_t opt_ttl; if (next_rr(wire_data, wire_data_len, 0, NULL, &i, &opt_type, NULL, &opt_ttl) != 0) { return DCP_SYNC_FILTER_RESULT_ERROR; } if (opt_type != DNS_TYPE_OPT) { return DCP_SYNC_FILTER_RESULT_OK; } if ((opt_ttl & 0x8000) == 0x8000) { if (qname_len >= 2) { qname[qname_len - 2] = (uint8_t) toupper(qname[qname_len - 2]); } } } scanned_cache_entry = find_cached_entry(cache, qname, qname_len, qtype); time(&cache->now); if (scanned_cache_entry != NULL && scanned_cache_entry->response_len <= dcplugin_get_wire_data_max_len(dcp_packet) && cache->now < scanned_cache_entry->deadline) { size_t aname_i; size_t aname_len; size_t ttl_i; uint16_t atype; uint32_t ttl; tid = (wire_data[0] << 8) | wire_data[1]; memcpy(qname, wire_qname, qname_len); dcplugin_set_wire_data(dcp_packet, scanned_cache_entry->response, scanned_cache_entry->response_len); wire_data = dcplugin_get_wire_data(dcp_packet); wire_data[0] = (uint8_t) (tid >> 8); wire_data[1] = (uint8_t) tid; memcpy(&wire_data[DNS_HEADER_SIZE], qname, qname_len); i = DNS_HEADER_SIZE; wire_data_len = scanned_cache_entry->response_len; if (next_rr(wire_data, wire_data_len, 1, NULL, &i, NULL, NULL, NULL) != 0) { return DCP_SYNC_FILTER_RESULT_ERROR; } ttl = scanned_cache_entry->deadline - cache->now; aname_i = i; while (next_rr(wire_data, wire_data_len, 0, &aname_len, &i, &atype, NULL, NULL) == 0) { ttl_i = aname_i + aname_len + 4; if (4 > wire_data_len - ttl_i) { return DCP_SYNC_FILTER_RESULT_ERROR; } if (atype != DNS_TYPE_OPT) { wire_data[ttl_i] = (uint8_t) (ttl >> 24); wire_data[ttl_i + 1] = (uint8_t) (ttl >> 16); wire_data[ttl_i + 2] = (uint8_t) (ttl >> 8); wire_data[ttl_i + 3] = (uint8_t) ttl; } aname_i = i; } return DCP_SYNC_FILTER_RESULT_DIRECT; } memcpy(wire_qname, qname, qname_len); return DCP_SYNC_FILTER_RESULT_OK; } DCPluginSyncFilterResult dcplugin_sync_post_filter(DCPlugin *dcplugin, DCPluginDNSPacket *dcp_packet) { Cache *cache = dcplugin_get_user_data(dcplugin); uint8_t *wire_data = dcplugin_get_wire_data(dcp_packet); uint8_t *wire_qname; size_t wire_data_len = dcplugin_get_wire_data_len(dcp_packet); size_t i = DNS_HEADER_SIZE; size_t qname_len; uint32_t ttl; uint32_t min_ttl; uint16_t atype; uint16_t qtype; uint16_t qclass; _Bool is_empty; if (wire_data_len < 15U || wire_data[4] != 0U || wire_data[5] != 1U) { return DCP_SYNC_FILTER_RESULT_ERROR; } if ((wire_data[2] & 2) != 0) { return DCP_SYNC_FILTER_RESULT_OK; } if ((wire_data[3] & 0xf) != 0 && (wire_data[3] & 0xf) != 3) { return DCP_SYNC_FILTER_RESULT_OK; } wire_qname = &wire_data[i]; if (next_rr(wire_data, wire_data_len, 1, &qname_len, &i, &qtype, &qclass, NULL) != 0) { return DCP_SYNC_FILTER_RESULT_ERROR; } if (qclass != 1) { return DCP_SYNC_FILTER_RESULT_OK; } is_empty = 1; min_ttl = MAX_TTL; while (next_rr(wire_data, wire_data_len, 0, NULL, &i, &atype, NULL, &ttl) == 0) { if (atype != DNS_TYPE_OPT && ttl < min_ttl) { min_ttl = ttl; is_empty = 0; } } if (min_ttl < cache->min_ttl || is_empty != 0) { min_ttl = cache->min_ttl; } replace_cache_entry(cache, wire_qname, qname_len, wire_data, wire_data_len, min_ttl, qtype); return DCP_SYNC_FILTER_RESULT_OK; } dnscrypt-proxy-1.9.4/src/plugins/example-cache/example-cache.h000644 000765 000024 00000001465 13037731714 023773 0ustar00jstaff000000 000000 #ifndef __EXAMPLE_CACHE_H__ #define __EXAMPLE_CACHE_H__ 1 #define DEFAULT_CACHE_ENTRIES_MAX 50 #define DEFAULT_MIN_TTL 60 #define MAX_TTL 86400 #define DNS_MAX_HOSTNAME_LEN 256U #define DNS_HEADER_SIZE 12 #define DNS_TYPE_OPT 41 #include #include typedef struct CacheEntry_ { struct CacheEntry_ *next; uint8_t *response; uint16_t response_len; uint16_t qtype; uint8_t qname[DNS_MAX_HOSTNAME_LEN]; time_t deadline; } CacheEntry; typedef struct Cache_ { CacheEntry *cache_entries_recent; 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const char * dcplugin_description(DCPlugin * const dcplugin) { return "A sample (useless) plugin for dnscrypt-proxy"; } const char * dcplugin_long_description(DCPlugin * const dcplugin) { return "This is a sample plugin, that actually doesn't do anything.\n" "Really. 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We do so because we # need to set the values for the 'am__tar' and 'am__untar' variables. _am_tools=${am_cv_prog_tar_$1-$_am_tools} for _am_tool in $_am_tools; do case $_am_tool in gnutar) for _am_tar in tar gnutar gtar; do AM_RUN_LOG([$_am_tar --version]) && break done am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' am__untar="$_am_tar -xf -" ;; plaintar) # Must skip GNU tar: if it does not support --format= it doesn't create # ustar tarball either. (tar --version) >/dev/null 2>&1 && continue am__tar='tar chf - "$$tardir"' am__tar_='tar chf - "$tardir"' am__untar='tar xf -' ;; pax) am__tar='pax -L -x $1 -w "$$tardir"' am__tar_='pax -L -x $1 -w "$tardir"' am__untar='pax -r' ;; cpio) am__tar='find "$$tardir" -print | cpio -o -H $1 -L' am__tar_='find "$tardir" -print | cpio -o -H $1 -L' am__untar='cpio -i -H $1 -d' ;; none) am__tar=false am__tar_=false am__untar=false ;; esac # If the value was cached, stop now. We just wanted to have am__tar # and am__untar set. test -n "${am_cv_prog_tar_$1}" && break # tar/untar a dummy directory, and stop if the command works. rm -rf conftest.dir mkdir conftest.dir echo GrepMe > conftest.dir/file AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) rm -rf conftest.dir if test -s conftest.tar; then AM_RUN_LOG([$am__untar /dev/null 2>&1 && break fi done rm -rf conftest.dir AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) AC_MSG_RESULT([$am_cv_prog_tar_$1])]) AC_SUBST([am__tar]) AC_SUBST([am__untar]) ]) # _AM_PROG_TAR m4_include([m4/ac_backport_259_ssizet.m4]) m4_include([m4/acx_pthread.m4]) m4_include([m4/libtool.m4]) m4_include([m4/ltoptions.m4]) m4_include([m4/ltsugar.m4]) m4_include([m4/ltversion.m4]) m4_include([m4/lt~obsolete.m4]) dnscrypt-proxy-1.9.4/src/libevent-modified/arc4random.c000644 000765 000024 00000031451 13037731714 022533 0ustar00jstaff000000 000000 /* Portable arc4random.c based on arc4random.c from OpenBSD. * Portable version by Chris Davis, adapted for Libevent by Nick Mathewson * Copyright (c) 2010 Chris Davis, Niels Provos, and Nick Mathewson * Copyright (c) 2010-2012 Niels Provos and Nick Mathewson * * Note that in Libevent, this file isn't compiled directly. Instead, * it's included from evutil_rand.c */ /* * Copyright (c) 1996, David Mazieres * Copyright (c) 2008, Damien Miller * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * Arc4 random number generator for OpenBSD. * * This code is derived from section 17.1 of Applied Cryptography, * second edition, which describes a stream cipher allegedly * compatible with RSA Labs "RC4" cipher (the actual description of * which is a trade secret). The same algorithm is used as a stream * cipher called "arcfour" in Tatu Ylonen's ssh package. * * Here the stream cipher has been modified always to include the time * when initializing the state. That makes it impossible to * regenerate the same random sequence twice, so this can't be used * for encryption, but will generate good random numbers. * * RC4 is a registered trademark of RSA Laboratories. */ #ifndef ARC4RANDOM_EXPORT #define ARC4RANDOM_EXPORT #endif #ifndef ARC4RANDOM_UINT32 #define ARC4RANDOM_UINT32 uint32_t #endif #ifndef ARC4RANDOM_NO_INCLUDES #ifdef WIN32 #include #include #else #include #include #include #include #ifdef _EVENT_HAVE_SYS_SYSCTL_H #include #endif #endif #include #include #include #endif /* Add platform entropy 32 bytes (256 bits) at a time. */ #define ADD_ENTROPY 32 /* Re-seed from the platform RNG after generating this many bytes. */ #define BYTES_BEFORE_RESEED 1600000 struct arc4_stream { unsigned char i; unsigned char j; unsigned char s[256]; }; #ifdef WIN32 #define getpid _getpid #define pid_t int #endif static int rs_initialized; static struct arc4_stream rs; static pid_t arc4_stir_pid; static int arc4_count; static int arc4_seeded_ok; static inline unsigned char arc4_getbyte(void); static inline void arc4_init(void) { int n; for (n = 0; n < 256; n++) rs.s[n] = n; rs.i = 0; rs.j = 0; } static inline void arc4_addrandom(const unsigned char *dat, int datlen) { int n; unsigned char si; rs.i--; for (n = 0; n < 256; n++) { rs.i = (rs.i + 1); si = rs.s[rs.i]; rs.j = (rs.j + si + dat[n % datlen]); rs.s[rs.i] = rs.s[rs.j]; rs.s[rs.j] = si; } rs.j = rs.i; } #ifndef WIN32 static ssize_t read_all(int fd, unsigned char *buf, size_t count) { size_t numread = 0; ssize_t result; while (numread < count) { result = read(fd, buf+numread, count-numread); if (result<0) return -1; else if (result == 0) break; numread += result; } return (ssize_t)numread; } #endif #ifdef WIN32 #define TRY_SEED_WIN32 static int arc4_seed_win32(void) { /* This is adapted from Tor's crypto_seed_rng() */ static int provider_set = 0; static HCRYPTPROV provider; unsigned char buf[ADD_ENTROPY]; if (!provider_set) { if (!CryptAcquireContext(&provider, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) { if (GetLastError() != (DWORD)NTE_BAD_KEYSET) return -1; } provider_set = 1; } if (!CryptGenRandom(provider, sizeof(buf), buf)) return -1; arc4_addrandom(buf, sizeof(buf)); evutil_memclear_(buf, sizeof(buf)); arc4_seeded_ok = 1; return 0; } #endif #if defined(_EVENT_HAVE_SYS_SYSCTL_H) && defined(_EVENT_HAVE_SYSCTL) #if _EVENT_HAVE_DECL_CTL_KERN && _EVENT_HAVE_DECL_KERN_RANDOM && _EVENT_HAVE_DECL_RANDOM_UUID #define TRY_SEED_SYSCTL_LINUX static int arc4_seed_sysctl_linux(void) { /* Based on code by William Ahern, this function tries to use the * RANDOM_UUID sysctl to get entropy from the kernel. This can work * even if /dev/urandom is inaccessible for some reason (e.g., we're * running in a chroot). */ int mib[] = { CTL_KERN, KERN_RANDOM, RANDOM_UUID }; unsigned char buf[ADD_ENTROPY]; size_t len, n; unsigned i; int any_set; memset(buf, 0, sizeof(buf)); for (len = 0; len < sizeof(buf); len += n) { n = sizeof(buf) - len; if (0 != sysctl(mib, 3, &buf[len], &n, NULL, 0)) return -1; } /* make sure that the buffer actually got set. */ for (i=0,any_set=0; i sizeof(buf)) n = len - sizeof(buf); if (sysctl(mib, 2, &buf[len], &n, NULL, 0) == -1) return -1; } } /* make sure that the buffer actually got set. */ for (i=any_set=0; i 0xffffffffUL) min = 0x100000000UL % upper_bound; #else /* Calculate (2**32 % upper_bound) avoiding 64-bit math */ if (upper_bound > 0x80000000) min = 1 + ~upper_bound; /* 2**32 - upper_bound */ else { /* (2**32 - (x * 2)) % x == 2**32 % x when x <= 2**31 */ min = ((0xffffffff - (upper_bound * 2)) + 1) % upper_bound; } #endif /* * This could theoretically loop forever but each retry has * p > 0.5 (worst case, usually far better) of selecting a * number inside the range we need, so it should rarely need * to re-roll. */ for (;;) { r = arc4random(); if (r >= min) break; } return r % upper_bound; } #endif dnscrypt-proxy-1.9.4/src/libevent-modified/autogen.sh000755 000765 000024 00000000326 13037731714 022333 0ustar00jstaff000000 000000 #!/bin/sh if [ -x "`which autoreconf 2>/dev/null`" ] ; then exec autoreconf -ivf fi $LIBTOOLIZE && \ aclocal -I m4 && \ autoheader && \ automake --add-missing --force-missing --include-deps && \ autoconf -I m4 dnscrypt-proxy-1.9.4/src/libevent-modified/buffer.c000644 000765 000024 00000220275 13037731714 021756 0ustar00jstaff000000 000000 /* * Copyright (c) 2002-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef WIN32 #include #include #include #endif #ifdef _EVENT_HAVE_VASPRINTF /* If we have vasprintf, we need to define this before we include stdio.h. */ #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #endif #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #ifdef _EVENT_HAVE_SYS_UIO_H #include #endif #ifdef _EVENT_HAVE_SYS_IOCTL_H #include #endif #ifdef _EVENT_HAVE_SYS_MMAN_H #include #endif #ifdef _EVENT_HAVE_SYS_SENDFILE_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_STDARG_H #include #endif #ifdef _EVENT_HAVE_UNISTD_H #include #endif #include #include "event2/event.h" #include "event2/buffer.h" #include "event2/buffer_compat.h" #include "event2/bufferevent.h" #include "event2/bufferevent_compat.h" #include "event2/bufferevent_struct.h" #include "event2/thread.h" #include "event2/event-config.h" #include "log-internal.h" #include "mm-internal.h" #include "util-internal.h" #include "evthread-internal.h" #include "evbuffer-internal.h" #include "bufferevent-internal.h" /* some systems do not have MAP_FAILED */ #ifndef MAP_FAILED #define MAP_FAILED ((void *)-1) #endif /* send file support */ #if defined(_EVENT_HAVE_SYS_SENDFILE_H) && defined(_EVENT_HAVE_SENDFILE) && defined(__linux__) #define USE_SENDFILE 1 #define SENDFILE_IS_LINUX 1 #elif defined(_EVENT_HAVE_SENDFILE) && defined(__FreeBSD__) #define USE_SENDFILE 1 #define SENDFILE_IS_FREEBSD 1 #elif defined(_EVENT_HAVE_SENDFILE) && defined(__APPLE__) #define USE_SENDFILE 1 #define SENDFILE_IS_MACOSX 1 #elif defined(_EVENT_HAVE_SENDFILE) && defined(__sun__) && defined(__svr4__) #define USE_SENDFILE 1 #define SENDFILE_IS_SOLARIS 1 #endif #ifdef USE_SENDFILE static int use_sendfile = 1; #endif #ifdef _EVENT_HAVE_MMAP static int use_mmap = 1; #endif /* Mask of user-selectable callback flags. */ #define EVBUFFER_CB_USER_FLAGS 0xffff /* Mask of all internal-use-only flags. */ #define EVBUFFER_CB_INTERNAL_FLAGS 0xffff0000 /* Flag set if the callback is using the cb_obsolete function pointer */ #define EVBUFFER_CB_OBSOLETE 0x00040000 /* evbuffer_chain support */ #define CHAIN_SPACE_PTR(ch) ((ch)->buffer + (ch)->misalign + (ch)->off) #define CHAIN_SPACE_LEN(ch) ((ch)->flags & EVBUFFER_IMMUTABLE ? \ 0 : (ch)->buffer_len - ((ch)->misalign + (ch)->off)) #define CHAIN_PINNED(ch) (((ch)->flags & EVBUFFER_MEM_PINNED_ANY) != 0) #define CHAIN_PINNED_R(ch) (((ch)->flags & EVBUFFER_MEM_PINNED_R) != 0) static void evbuffer_chain_align(struct evbuffer_chain *chain); static int evbuffer_chain_should_realign(struct evbuffer_chain *chain, size_t datalen); static void evbuffer_deferred_callback(struct deferred_cb *cb, void *arg); static int evbuffer_ptr_memcmp(const struct evbuffer *buf, const struct evbuffer_ptr *pos, const char *mem, size_t len); static struct evbuffer_chain *evbuffer_expand_singlechain(struct evbuffer *buf, size_t datlen); #ifdef WIN32 static int evbuffer_readfile(struct evbuffer *buf, evutil_socket_t fd, ev_ssize_t howmuch); #else #define evbuffer_readfile evbuffer_read #endif static struct evbuffer_chain * evbuffer_chain_new(size_t size) { struct evbuffer_chain *chain; size_t to_alloc; if (size > EVBUFFER_CHAIN_MAX - EVBUFFER_CHAIN_SIZE) return (NULL); size += EVBUFFER_CHAIN_SIZE; /* get the next largest memory that can hold the buffer */ if (size < EVBUFFER_CHAIN_MAX / 2) { to_alloc = MIN_BUFFER_SIZE; while (to_alloc < size) { to_alloc <<= 1; } } else { to_alloc = size; } /* we get everything in one chunk */ if ((chain = mm_malloc(to_alloc)) == NULL) return (NULL); memset(chain, 0, EVBUFFER_CHAIN_SIZE); chain->buffer_len = to_alloc - EVBUFFER_CHAIN_SIZE; /* this way we can manipulate the buffer to different addresses, * which is required for mmap for example. */ chain->buffer = EVBUFFER_CHAIN_EXTRA(u_char, chain); return (chain); } static inline void evbuffer_chain_free(struct evbuffer_chain *chain) { if (CHAIN_PINNED(chain)) { chain->flags |= EVBUFFER_DANGLING; return; } if (chain->flags & (EVBUFFER_MMAP|EVBUFFER_SENDFILE| EVBUFFER_REFERENCE)) { if (chain->flags & EVBUFFER_REFERENCE) { struct evbuffer_chain_reference *info = EVBUFFER_CHAIN_EXTRA( struct evbuffer_chain_reference, chain); if (info->cleanupfn) (*info->cleanupfn)(chain->buffer, chain->buffer_len, info->extra); } #ifdef _EVENT_HAVE_MMAP if (chain->flags & EVBUFFER_MMAP) { struct evbuffer_chain_fd *info = EVBUFFER_CHAIN_EXTRA(struct evbuffer_chain_fd, chain); if (munmap(chain->buffer, chain->buffer_len) == -1) event_warn("%s: munmap failed", __func__); if (close(info->fd) == -1) event_warn("%s: close(%d) failed", __func__, info->fd); } #endif #ifdef USE_SENDFILE if (chain->flags & EVBUFFER_SENDFILE) { struct evbuffer_chain_fd *info = EVBUFFER_CHAIN_EXTRA(struct evbuffer_chain_fd, chain); if (close(info->fd) == -1) event_warn("%s: close(%d) failed", __func__, info->fd); } #endif } mm_free(chain); } static void evbuffer_free_all_chains(struct evbuffer_chain *chain) { struct evbuffer_chain *next; for (; chain; chain = next) { next = chain->next; evbuffer_chain_free(chain); } } #ifndef NDEBUG static int evbuffer_chains_all_empty(struct evbuffer_chain *chain) { for (; chain; chain = chain->next) { if (chain->off) return 0; } return 1; } #else /* The definition is needed for EVUTIL_ASSERT, which uses sizeof to avoid "unused variable" warnings. */ static inline int evbuffer_chains_all_empty(struct evbuffer_chain *chain) { return 1; } #endif /* Free all trailing chains in 'buf' that are neither pinned nor empty, prior * to replacing them all with a new chain. Return a pointer to the place * where the new chain will go. * * Internal; requires lock. The caller must fix up buf->last and buf->first * as needed; they might have been freed. */ static struct evbuffer_chain ** evbuffer_free_trailing_empty_chains(struct evbuffer *buf) { struct evbuffer_chain **ch = buf->last_with_datap; /* Find the first victim chain. It might be *last_with_datap */ while ((*ch) && ((*ch)->off != 0 || CHAIN_PINNED(*ch))) ch = &(*ch)->next; if (*ch) { EVUTIL_ASSERT(evbuffer_chains_all_empty(*ch)); evbuffer_free_all_chains(*ch); *ch = NULL; } return ch; } /* Add a single chain 'chain' to the end of 'buf', freeing trailing empty * chains as necessary. Requires lock. Does not schedule callbacks. */ static void evbuffer_chain_insert(struct evbuffer *buf, struct evbuffer_chain *chain) { ASSERT_EVBUFFER_LOCKED(buf); if (*buf->last_with_datap == NULL) { /* There are no chains data on the buffer at all. */ EVUTIL_ASSERT(buf->last_with_datap == &buf->first); EVUTIL_ASSERT(buf->first == NULL); buf->first = buf->last = chain; } else { struct evbuffer_chain **chp; chp = evbuffer_free_trailing_empty_chains(buf); *chp = chain; if (chain->off) buf->last_with_datap = chp; buf->last = chain; } buf->total_len += chain->off; } static inline struct evbuffer_chain * evbuffer_chain_insert_new(struct evbuffer *buf, size_t datlen) { struct evbuffer_chain *chain; if ((chain = evbuffer_chain_new(datlen)) == NULL) return NULL; evbuffer_chain_insert(buf, chain); return chain; } void _evbuffer_chain_pin(struct evbuffer_chain *chain, unsigned flag) { EVUTIL_ASSERT((chain->flags & flag) == 0); chain->flags |= flag; } void _evbuffer_chain_unpin(struct evbuffer_chain *chain, unsigned flag) { EVUTIL_ASSERT((chain->flags & flag) != 0); chain->flags &= ~flag; if (chain->flags & EVBUFFER_DANGLING) evbuffer_chain_free(chain); } struct evbuffer * evbuffer_new(void) { struct evbuffer *buffer; buffer = mm_calloc(1, sizeof(struct evbuffer)); if (buffer == NULL) return (NULL); TAILQ_INIT(&buffer->callbacks); buffer->refcnt = 1; buffer->last_with_datap = &buffer->first; return (buffer); } int evbuffer_set_flags(struct evbuffer *buf, ev_uint64_t flags) { EVBUFFER_LOCK(buf); buf->flags |= (ev_uint32_t)flags; EVBUFFER_UNLOCK(buf); return 0; } int evbuffer_clear_flags(struct evbuffer *buf, ev_uint64_t flags) { EVBUFFER_LOCK(buf); buf->flags &= ~(ev_uint32_t)flags; EVBUFFER_UNLOCK(buf); return 0; } void _evbuffer_incref(struct evbuffer *buf) { EVBUFFER_LOCK(buf); ++buf->refcnt; EVBUFFER_UNLOCK(buf); } void _evbuffer_incref_and_lock(struct evbuffer *buf) { EVBUFFER_LOCK(buf); ++buf->refcnt; } int evbuffer_defer_callbacks(struct evbuffer *buffer, struct event_base *base) { EVBUFFER_LOCK(buffer); buffer->cb_queue = event_base_get_deferred_cb_queue(base); buffer->deferred_cbs = 1; event_deferred_cb_init(&buffer->deferred, evbuffer_deferred_callback, buffer); EVBUFFER_UNLOCK(buffer); return 0; } int evbuffer_enable_locking(struct evbuffer *buf, void *lock) { #ifdef _EVENT_DISABLE_THREAD_SUPPORT return -1; #else if (buf->lock) return -1; if (!lock) { EVTHREAD_ALLOC_LOCK(lock, EVTHREAD_LOCKTYPE_RECURSIVE); if (!lock) return -1; buf->lock = lock; buf->own_lock = 1; } else { buf->lock = lock; buf->own_lock = 0; } return 0; #endif } void evbuffer_set_parent(struct evbuffer *buf, struct bufferevent *bev) { EVBUFFER_LOCK(buf); buf->parent = bev; EVBUFFER_UNLOCK(buf); } static void evbuffer_run_callbacks(struct evbuffer *buffer, int running_deferred) { struct evbuffer_cb_entry *cbent, *next; struct evbuffer_cb_info info; size_t new_size; ev_uint32_t mask, masked_val; int clear = 1; if (running_deferred) { mask = EVBUFFER_CB_NODEFER|EVBUFFER_CB_ENABLED; masked_val = EVBUFFER_CB_ENABLED; } else if (buffer->deferred_cbs) { mask = EVBUFFER_CB_NODEFER|EVBUFFER_CB_ENABLED; masked_val = EVBUFFER_CB_NODEFER|EVBUFFER_CB_ENABLED; /* Don't zero-out n_add/n_del, since the deferred callbacks will want to see them. */ clear = 0; } else { mask = EVBUFFER_CB_ENABLED; masked_val = EVBUFFER_CB_ENABLED; } ASSERT_EVBUFFER_LOCKED(buffer); if (TAILQ_EMPTY(&buffer->callbacks)) { buffer->n_add_for_cb = buffer->n_del_for_cb = 0; return; } if (buffer->n_add_for_cb == 0 && buffer->n_del_for_cb == 0) return; new_size = buffer->total_len; info.orig_size = new_size + buffer->n_del_for_cb - buffer->n_add_for_cb; info.n_added = buffer->n_add_for_cb; info.n_deleted = buffer->n_del_for_cb; if (clear) { buffer->n_add_for_cb = 0; buffer->n_del_for_cb = 0; } for (cbent = TAILQ_FIRST(&buffer->callbacks); cbent != TAILQ_END(&buffer->callbacks); cbent = next) { /* Get the 'next' pointer now in case this callback decides * to remove itself or something. */ next = TAILQ_NEXT(cbent, next); if ((cbent->flags & mask) != masked_val) continue; if ((cbent->flags & EVBUFFER_CB_OBSOLETE)) cbent->cb.cb_obsolete(buffer, info.orig_size, new_size, cbent->cbarg); else cbent->cb.cb_func(buffer, &info, cbent->cbarg); } } void evbuffer_invoke_callbacks(struct evbuffer *buffer) { if (TAILQ_EMPTY(&buffer->callbacks)) { buffer->n_add_for_cb = buffer->n_del_for_cb = 0; return; } if (buffer->deferred_cbs) { if (buffer->deferred.queued) return; _evbuffer_incref_and_lock(buffer); if (buffer->parent) bufferevent_incref(buffer->parent); EVBUFFER_UNLOCK(buffer); event_deferred_cb_schedule(buffer->cb_queue, &buffer->deferred); } evbuffer_run_callbacks(buffer, 0); } static void evbuffer_deferred_callback(struct deferred_cb *cb, void *arg) { struct bufferevent *parent = NULL; struct evbuffer *buffer = arg; /* XXXX It would be better to run these callbacks without holding the * lock */ EVBUFFER_LOCK(buffer); parent = buffer->parent; evbuffer_run_callbacks(buffer, 1); _evbuffer_decref_and_unlock(buffer); if (parent) bufferevent_decref(parent); } static void evbuffer_remove_all_callbacks(struct evbuffer *buffer) { struct evbuffer_cb_entry *cbent; while ((cbent = TAILQ_FIRST(&buffer->callbacks))) { TAILQ_REMOVE(&buffer->callbacks, cbent, next); mm_free(cbent); } } void _evbuffer_decref_and_unlock(struct evbuffer *buffer) { struct evbuffer_chain *chain, *next; ASSERT_EVBUFFER_LOCKED(buffer); EVUTIL_ASSERT(buffer->refcnt > 0); if (--buffer->refcnt > 0) { EVBUFFER_UNLOCK(buffer); return; } for (chain = buffer->first; chain != NULL; chain = next) { next = chain->next; evbuffer_chain_free(chain); } evbuffer_remove_all_callbacks(buffer); if (buffer->deferred_cbs) event_deferred_cb_cancel(buffer->cb_queue, &buffer->deferred); EVBUFFER_UNLOCK(buffer); if (buffer->own_lock) EVTHREAD_FREE_LOCK(buffer->lock, EVTHREAD_LOCKTYPE_RECURSIVE); mm_free(buffer); } void evbuffer_free(struct evbuffer *buffer) { EVBUFFER_LOCK(buffer); _evbuffer_decref_and_unlock(buffer); } void evbuffer_lock(struct evbuffer *buf) { EVBUFFER_LOCK(buf); } void evbuffer_unlock(struct evbuffer *buf) { EVBUFFER_UNLOCK(buf); } size_t evbuffer_get_length(const struct evbuffer *buffer) { size_t result; EVBUFFER_LOCK(buffer); result = (buffer->total_len); EVBUFFER_UNLOCK(buffer); return result; } size_t evbuffer_get_contiguous_space(const struct evbuffer *buf) { struct evbuffer_chain *chain; size_t result; EVBUFFER_LOCK(buf); chain = buf->first; result = (chain != NULL ? chain->off : 0); EVBUFFER_UNLOCK(buf); return result; } int evbuffer_reserve_space(struct evbuffer *buf, ev_ssize_t size, struct evbuffer_iovec *vec, int n_vecs) { struct evbuffer_chain *chain, **chainp; int n = -1; EVBUFFER_LOCK(buf); if (buf->freeze_end) goto done; if (n_vecs < 1) goto done; if (n_vecs == 1) { if ((chain = evbuffer_expand_singlechain(buf, size)) == NULL) goto done; vec[0].iov_base = CHAIN_SPACE_PTR(chain); vec[0].iov_len = (size_t) CHAIN_SPACE_LEN(chain); EVUTIL_ASSERT(size<0 || (size_t)vec[0].iov_len >= (size_t)size); n = 1; } else { if (_evbuffer_expand_fast(buf, size, n_vecs)<0) goto done; n = _evbuffer_read_setup_vecs(buf, size, vec, n_vecs, &chainp, 0); } done: EVBUFFER_UNLOCK(buf); return n; } static int advance_last_with_data(struct evbuffer *buf) { int n = 0; ASSERT_EVBUFFER_LOCKED(buf); if (!*buf->last_with_datap) return 0; while ((*buf->last_with_datap)->next && (*buf->last_with_datap)->next->off) { buf->last_with_datap = &(*buf->last_with_datap)->next; ++n; } return n; } int evbuffer_commit_space(struct evbuffer *buf, struct evbuffer_iovec *vec, int n_vecs) { struct evbuffer_chain *chain, **firstchainp, **chainp; int result = -1; size_t added = 0; int i; EVBUFFER_LOCK(buf); if (buf->freeze_end) goto done; if (n_vecs == 0) { result = 0; goto done; } else if (n_vecs == 1 && (buf->last && vec[0].iov_base == (void*)CHAIN_SPACE_PTR(buf->last))) { /* The user only got or used one chain; it might not * be the first one with space in it. */ if ((size_t)vec[0].iov_len > (size_t)CHAIN_SPACE_LEN(buf->last)) goto done; buf->last->off += vec[0].iov_len; added = vec[0].iov_len; if (added) advance_last_with_data(buf); goto okay; } /* Advance 'firstchain' to the first chain with space in it. */ firstchainp = buf->last_with_datap; if (!*firstchainp) goto done; if (CHAIN_SPACE_LEN(*firstchainp) == 0) { firstchainp = &(*firstchainp)->next; } chain = *firstchainp; /* pass 1: make sure that the pointers and lengths of vecs[] are in * bounds before we try to commit anything. */ for (i=0; i CHAIN_SPACE_LEN(chain)) goto done; chain = chain->next; } /* pass 2: actually adjust all the chains. */ chainp = firstchainp; for (i=0; ioff += vec[i].iov_len; added += vec[i].iov_len; if (vec[i].iov_len) { buf->last_with_datap = chainp; } chainp = &(*chainp)->next; } okay: buf->total_len += added; buf->n_add_for_cb += added; result = 0; evbuffer_invoke_callbacks(buf); done: EVBUFFER_UNLOCK(buf); return result; } static inline int HAS_PINNED_R(struct evbuffer *buf) { return (buf->last && CHAIN_PINNED_R(buf->last)); } static inline void ZERO_CHAIN(struct evbuffer *dst) { ASSERT_EVBUFFER_LOCKED(dst); dst->first = NULL; dst->last = NULL; dst->last_with_datap = &(dst)->first; dst->total_len = 0; } /* Prepares the contents of src to be moved to another buffer by removing * read-pinned chains. The first pinned chain is saved in first, and the * last in last. If src has no read-pinned chains, first and last are set * to NULL. */ static int PRESERVE_PINNED(struct evbuffer *src, struct evbuffer_chain **first, struct evbuffer_chain **last) { struct evbuffer_chain *chain, **pinned; ASSERT_EVBUFFER_LOCKED(src); if (!HAS_PINNED_R(src)) { *first = *last = NULL; return 0; } pinned = src->last_with_datap; if (!CHAIN_PINNED_R(*pinned)) pinned = &(*pinned)->next; EVUTIL_ASSERT(CHAIN_PINNED_R(*pinned)); chain = *first = *pinned; *last = src->last; /* If there's data in the first pinned chain, we need to allocate * a new chain and copy the data over. */ if (chain->off) { struct evbuffer_chain *tmp; EVUTIL_ASSERT(pinned == src->last_with_datap); tmp = evbuffer_chain_new(chain->off); if (!tmp) return -1; memcpy(tmp->buffer, chain->buffer + chain->misalign, chain->off); tmp->off = chain->off; *src->last_with_datap = tmp; src->last = tmp; chain->misalign += chain->off; chain->off = 0; } else { src->last = *src->last_with_datap; *pinned = NULL; } return 0; } static inline void RESTORE_PINNED(struct evbuffer *src, struct evbuffer_chain *pinned, struct evbuffer_chain *last) { ASSERT_EVBUFFER_LOCKED(src); if (!pinned) { ZERO_CHAIN(src); return; } src->first = pinned; src->last = last; src->last_with_datap = &src->first; src->total_len = 0; } static inline void COPY_CHAIN(struct evbuffer *dst, struct evbuffer *src) { ASSERT_EVBUFFER_LOCKED(dst); ASSERT_EVBUFFER_LOCKED(src); dst->first = src->first; if (src->last_with_datap == &src->first) dst->last_with_datap = &dst->first; else dst->last_with_datap = src->last_with_datap; dst->last = src->last; dst->total_len = src->total_len; } static void APPEND_CHAIN(struct evbuffer *dst, struct evbuffer *src) { ASSERT_EVBUFFER_LOCKED(dst); ASSERT_EVBUFFER_LOCKED(src); dst->last->next = src->first; if (src->last_with_datap == &src->first) dst->last_with_datap = &dst->last->next; else dst->last_with_datap = src->last_with_datap; dst->last = src->last; dst->total_len += src->total_len; } static void PREPEND_CHAIN(struct evbuffer *dst, struct evbuffer *src) { ASSERT_EVBUFFER_LOCKED(dst); ASSERT_EVBUFFER_LOCKED(src); src->last->next = dst->first; dst->first = src->first; dst->total_len += src->total_len; if (*dst->last_with_datap == NULL) { if (src->last_with_datap == &(src)->first) dst->last_with_datap = &dst->first; else dst->last_with_datap = src->last_with_datap; } else if (dst->last_with_datap == &dst->first) { dst->last_with_datap = &src->last->next; } } int evbuffer_add_buffer(struct evbuffer *outbuf, struct evbuffer *inbuf) { struct evbuffer_chain *pinned, *last; size_t in_total_len, out_total_len; int result = 0; EVBUFFER_LOCK2(inbuf, outbuf); in_total_len = inbuf->total_len; out_total_len = outbuf->total_len; if (in_total_len == 0 || outbuf == inbuf) goto done; if (outbuf->freeze_end || inbuf->freeze_start) { result = -1; goto done; } if (PRESERVE_PINNED(inbuf, &pinned, &last) < 0) { result = -1; goto done; } if (out_total_len == 0) { /* There might be an empty chain at the start of outbuf; free * it. */ evbuffer_free_all_chains(outbuf->first); COPY_CHAIN(outbuf, inbuf); } else { APPEND_CHAIN(outbuf, inbuf); } RESTORE_PINNED(inbuf, pinned, last); inbuf->n_del_for_cb += in_total_len; outbuf->n_add_for_cb += in_total_len; evbuffer_invoke_callbacks(inbuf); evbuffer_invoke_callbacks(outbuf); done: EVBUFFER_UNLOCK2(inbuf, outbuf); return result; } int evbuffer_prepend_buffer(struct evbuffer *outbuf, struct evbuffer *inbuf) { struct evbuffer_chain *pinned, *last; size_t in_total_len, out_total_len; int result = 0; EVBUFFER_LOCK2(inbuf, outbuf); in_total_len = inbuf->total_len; out_total_len = outbuf->total_len; if (!in_total_len || inbuf == outbuf) goto done; if (outbuf->freeze_start || inbuf->freeze_start) { result = -1; goto done; } if (PRESERVE_PINNED(inbuf, &pinned, &last) < 0) { result = -1; goto done; } if (out_total_len == 0) { /* There might be an empty chain at the start of outbuf; free * it. */ evbuffer_free_all_chains(outbuf->first); COPY_CHAIN(outbuf, inbuf); } else { PREPEND_CHAIN(outbuf, inbuf); } RESTORE_PINNED(inbuf, pinned, last); inbuf->n_del_for_cb += in_total_len; outbuf->n_add_for_cb += in_total_len; evbuffer_invoke_callbacks(inbuf); evbuffer_invoke_callbacks(outbuf); done: EVBUFFER_UNLOCK2(inbuf, outbuf); return result; } int evbuffer_drain(struct evbuffer *buf, size_t len) { struct evbuffer_chain *chain, *next; size_t remaining, old_len; int result = 0; EVBUFFER_LOCK(buf); old_len = buf->total_len; if (old_len == 0) goto done; if (buf->freeze_start) { result = -1; goto done; } if (len >= old_len && !HAS_PINNED_R(buf)) { len = old_len; for (chain = buf->first; chain != NULL; chain = next) { next = chain->next; evbuffer_chain_free(chain); } ZERO_CHAIN(buf); } else { if (len >= old_len) len = old_len; buf->total_len -= len; remaining = len; for (chain = buf->first; remaining >= chain->off; chain = next) { next = chain->next; remaining -= chain->off; if (chain == *buf->last_with_datap) { buf->last_with_datap = &buf->first; } if (&chain->next == buf->last_with_datap) buf->last_with_datap = &buf->first; if (CHAIN_PINNED_R(chain)) { EVUTIL_ASSERT(remaining == 0); chain->misalign += chain->off; chain->off = 0; break; } else evbuffer_chain_free(chain); } buf->first = chain; if (chain) { EVUTIL_ASSERT(remaining <= chain->off); chain->misalign += remaining; chain->off -= remaining; } } buf->n_del_for_cb += len; /* Tell someone about changes in this buffer */ evbuffer_invoke_callbacks(buf); done: EVBUFFER_UNLOCK(buf); return result; } /* Reads data from an event buffer and drains the bytes read */ int evbuffer_remove(struct evbuffer *buf, void *data_out, size_t datlen) { ev_ssize_t n; EVBUFFER_LOCK(buf); n = evbuffer_copyout(buf, data_out, datlen); if (n > 0) { if (evbuffer_drain(buf, n)<0) n = -1; } EVBUFFER_UNLOCK(buf); return (int)n; } ev_ssize_t evbuffer_copyout(struct evbuffer *buf, void *data_out, size_t datlen) { /*XXX fails badly on sendfile case. */ struct evbuffer_chain *chain; char *data = data_out; size_t nread; ev_ssize_t result = 0; EVBUFFER_LOCK(buf); chain = buf->first; if (datlen >= buf->total_len) datlen = buf->total_len; if (datlen == 0) goto done; if (buf->freeze_start) { result = -1; goto done; } nread = datlen; while (datlen && datlen >= chain->off) { memcpy(data, chain->buffer + chain->misalign, chain->off); data += chain->off; datlen -= chain->off; chain = chain->next; EVUTIL_ASSERT(chain || datlen==0); } if (datlen) { EVUTIL_ASSERT(chain); EVUTIL_ASSERT(datlen <= chain->off); memcpy(data, chain->buffer + chain->misalign, datlen); } result = nread; done: EVBUFFER_UNLOCK(buf); return result; } /* reads data from the src buffer to the dst buffer, avoids memcpy as * possible. */ /* XXXX should return ev_ssize_t */ int evbuffer_remove_buffer(struct evbuffer *src, struct evbuffer *dst, size_t datlen) { /*XXX We should have an option to force this to be zero-copy.*/ /*XXX can fail badly on sendfile case. */ struct evbuffer_chain *chain, *previous; size_t nread = 0; int result; EVBUFFER_LOCK2(src, dst); chain = previous = src->first; if (datlen == 0 || dst == src) { result = 0; goto done; } if (dst->freeze_end || src->freeze_start) { result = -1; goto done; } /* short-cut if there is no more data buffered */ if (datlen >= src->total_len) { datlen = src->total_len; evbuffer_add_buffer(dst, src); result = (int)datlen; /*XXXX should return ev_ssize_t*/ goto done; } /* removes chains if possible */ while (chain->off <= datlen) { /* We can't remove the last with data from src unless we * remove all chains, in which case we would have done the if * block above */ EVUTIL_ASSERT(chain != *src->last_with_datap); nread += chain->off; datlen -= chain->off; previous = chain; if (src->last_with_datap == &chain->next) src->last_with_datap = &src->first; chain = chain->next; } if (nread) { /* we can remove the chain */ struct evbuffer_chain **chp; chp = evbuffer_free_trailing_empty_chains(dst); if (dst->first == NULL) { dst->first = src->first; } else { *chp = src->first; } dst->last = previous; previous->next = NULL; src->first = chain; advance_last_with_data(dst); dst->total_len += nread; dst->n_add_for_cb += nread; } /* we know that there is more data in the src buffer than * we want to read, so we manually drain the chain */ evbuffer_add(dst, chain->buffer + chain->misalign, datlen); chain->misalign += datlen; chain->off -= datlen; nread += datlen; /* You might think we would want to increment dst->n_add_for_cb * here too. But evbuffer_add above already took care of that. */ src->total_len -= nread; src->n_del_for_cb += nread; if (nread) { evbuffer_invoke_callbacks(dst); evbuffer_invoke_callbacks(src); } result = (int)nread;/*XXXX should change return type */ done: EVBUFFER_UNLOCK2(src, dst); return result; } unsigned char * evbuffer_pullup(struct evbuffer *buf, ev_ssize_t size) { struct evbuffer_chain *chain, *next, *tmp, *last_with_data; unsigned char *buffer, *result = NULL; ev_ssize_t remaining; int removed_last_with_data = 0; int removed_last_with_datap = 0; EVBUFFER_LOCK(buf); chain = buf->first; if (size < 0) size = buf->total_len; /* if size > buf->total_len, we cannot guarantee to the user that she * is going to have a long enough buffer afterwards; so we return * NULL */ if (size == 0 || (size_t)size > buf->total_len) goto done; /* No need to pull up anything; the first size bytes are * already here. */ if (chain->off >= (size_t)size) { result = chain->buffer + chain->misalign; goto done; } /* Make sure that none of the chains we need to copy from is pinned. */ remaining = size - chain->off; EVUTIL_ASSERT(remaining >= 0); for (tmp=chain->next; tmp; tmp=tmp->next) { if (CHAIN_PINNED(tmp)) goto done; if (tmp->off >= (size_t)remaining) break; remaining -= tmp->off; } if (CHAIN_PINNED(chain)) { size_t old_off = chain->off; if (CHAIN_SPACE_LEN(chain) < size - chain->off) { /* not enough room at end of chunk. */ goto done; } buffer = CHAIN_SPACE_PTR(chain); tmp = chain; tmp->off = size; size -= old_off; chain = chain->next; } else if (chain->buffer_len - chain->misalign >= (size_t)size) { /* already have enough space in the first chain */ size_t old_off = chain->off; buffer = chain->buffer + chain->misalign + chain->off; tmp = chain; tmp->off = size; size -= old_off; chain = chain->next; } else { if ((tmp = evbuffer_chain_new(size)) == NULL) { event_warn("%s: out of memory", __func__); goto done; } buffer = tmp->buffer; tmp->off = size; buf->first = tmp; } /* TODO(niels): deal with buffers that point to NULL like sendfile */ /* Copy and free every chunk that will be entirely pulled into tmp */ last_with_data = *buf->last_with_datap; for (; chain != NULL && (size_t)size >= chain->off; chain = next) { next = chain->next; memcpy(buffer, chain->buffer + chain->misalign, chain->off); size -= chain->off; buffer += chain->off; if (chain == last_with_data) removed_last_with_data = 1; if (&chain->next == buf->last_with_datap) removed_last_with_datap = 1; evbuffer_chain_free(chain); } if (chain != NULL) { memcpy(buffer, chain->buffer + chain->misalign, size); chain->misalign += size; chain->off -= size; } else { buf->last = tmp; } tmp->next = chain; if (removed_last_with_data) { buf->last_with_datap = &buf->first; } else if (removed_last_with_datap) { if (buf->first->next && buf->first->next->off) buf->last_with_datap = &buf->first->next; else buf->last_with_datap = &buf->first; } result = (tmp->buffer + tmp->misalign); done: EVBUFFER_UNLOCK(buf); return result; } /* * Reads a line terminated by either '\r\n', '\n\r' or '\r' or '\n'. * The returned buffer needs to be freed by the called. */ char * evbuffer_readline(struct evbuffer *buffer) { return evbuffer_readln(buffer, NULL, EVBUFFER_EOL_ANY); } static inline ev_ssize_t evbuffer_strchr(struct evbuffer_ptr *it, const char chr) { struct evbuffer_chain *chain = it->_internal.chain; size_t i = it->_internal.pos_in_chain; while (chain != NULL) { char *buffer = (char *)chain->buffer + chain->misalign; char *cp = memchr(buffer+i, chr, chain->off-i); if (cp) { it->_internal.chain = chain; it->_internal.pos_in_chain = cp - buffer; it->pos += (cp - buffer - i); return it->pos; } it->pos += chain->off - i; i = 0; chain = chain->next; } return (-1); } static inline char * find_eol_char(char *s, size_t len) { #define CHUNK_SZ 128 /* Lots of benchmarking found this approach to be faster in practice * than doing two memchrs over the whole buffer, doin a memchr on each * char of the buffer, or trying to emulate memchr by hand. */ char *s_end, *cr, *lf; s_end = s+len; while (s < s_end) { size_t chunk = (s + CHUNK_SZ < s_end) ? CHUNK_SZ : (s_end - s); cr = memchr(s, '\r', chunk); lf = memchr(s, '\n', chunk); if (cr) { if (lf && lf < cr) return lf; return cr; } else if (lf) { return lf; } s += CHUNK_SZ; } return NULL; #undef CHUNK_SZ } static ev_ssize_t evbuffer_find_eol_char(struct evbuffer_ptr *it) { struct evbuffer_chain *chain = it->_internal.chain; size_t i = it->_internal.pos_in_chain; while (chain != NULL) { char *buffer = (char *)chain->buffer + chain->misalign; char *cp = find_eol_char(buffer+i, chain->off-i); if (cp) { it->_internal.chain = chain; it->_internal.pos_in_chain = cp - buffer; it->pos += (cp - buffer) - i; return it->pos; } it->pos += chain->off - i; i = 0; chain = chain->next; } return (-1); } static inline int evbuffer_strspn( struct evbuffer_ptr *ptr, const char *chrset) { int count = 0; struct evbuffer_chain *chain = ptr->_internal.chain; size_t i = ptr->_internal.pos_in_chain; if (!chain) return -1; while (1) { char *buffer = (char *)chain->buffer + chain->misalign; for (; i < chain->off; ++i) { const char *p = chrset; while (*p) { if (buffer[i] == *p++) goto next; } ptr->_internal.chain = chain; ptr->_internal.pos_in_chain = i; ptr->pos += count; return count; next: ++count; } i = 0; if (! chain->next) { ptr->_internal.chain = chain; ptr->_internal.pos_in_chain = i; ptr->pos += count; return count; } chain = chain->next; } } static inline char evbuffer_getchr(struct evbuffer_ptr *it) { struct evbuffer_chain *chain = it->_internal.chain; size_t off = it->_internal.pos_in_chain; return chain->buffer[chain->misalign + off]; } struct evbuffer_ptr evbuffer_search_eol(struct evbuffer *buffer, struct evbuffer_ptr *start, size_t *eol_len_out, enum evbuffer_eol_style eol_style) { struct evbuffer_ptr it, it2; size_t extra_drain = 0; int ok = 0; EVBUFFER_LOCK(buffer); if (start) { memcpy(&it, start, sizeof(it)); } else { it.pos = 0; it._internal.chain = buffer->first; it._internal.pos_in_chain = 0; } /* the eol_style determines our first stop character and how many * characters we are going to drain afterwards. */ switch (eol_style) { case EVBUFFER_EOL_ANY: if (evbuffer_find_eol_char(&it) < 0) goto done; memcpy(&it2, &it, sizeof(it)); extra_drain = evbuffer_strspn(&it2, "\r\n"); break; case EVBUFFER_EOL_CRLF_STRICT: { it = evbuffer_search(buffer, "\r\n", 2, &it); if (it.pos < 0) goto done; extra_drain = 2; break; } case EVBUFFER_EOL_CRLF: while (1) { if (evbuffer_find_eol_char(&it) < 0) goto done; if (evbuffer_getchr(&it) == '\n') { extra_drain = 1; break; } else if (!evbuffer_ptr_memcmp( buffer, &it, "\r\n", 2)) { extra_drain = 2; break; } else { if (evbuffer_ptr_set(buffer, &it, 1, EVBUFFER_PTR_ADD)<0) goto done; } } break; case EVBUFFER_EOL_LF: if (evbuffer_strchr(&it, '\n') < 0) goto done; extra_drain = 1; break; default: goto done; } ok = 1; done: EVBUFFER_UNLOCK(buffer); if (!ok) { it.pos = -1; } if (eol_len_out) *eol_len_out = extra_drain; return it; } char * evbuffer_readln(struct evbuffer *buffer, size_t *n_read_out, enum evbuffer_eol_style eol_style) { struct evbuffer_ptr it; char *line; size_t n_to_copy=0, extra_drain=0; char *result = NULL; EVBUFFER_LOCK(buffer); if (buffer->freeze_start) { goto done; } it = evbuffer_search_eol(buffer, NULL, &extra_drain, eol_style); if (it.pos < 0) goto done; n_to_copy = it.pos; if ((line = mm_malloc(n_to_copy+1)) == NULL) { event_warn("%s: out of memory", __func__); goto done; } evbuffer_remove(buffer, line, n_to_copy); line[n_to_copy] = '\0'; evbuffer_drain(buffer, extra_drain); result = line; done: EVBUFFER_UNLOCK(buffer); if (n_read_out) *n_read_out = result ? n_to_copy : 0; return result; } #define EVBUFFER_CHAIN_MAX_AUTO_SIZE 4096 /* Adds data to an event buffer */ int evbuffer_add(struct evbuffer *buf, const void *data_in, size_t datlen) { struct evbuffer_chain *chain, *tmp; const unsigned char *data = data_in; size_t remain, to_alloc; int result = -1; EVBUFFER_LOCK(buf); if (buf->freeze_end) { goto done; } /* Prevent buf->total_len overflow */ if (datlen > EV_SIZE_MAX - buf->total_len) { goto done; } if (*buf->last_with_datap == NULL) { chain = buf->last; } else { chain = *buf->last_with_datap; } /* If there are no chains allocated for this buffer, allocate one * big enough to hold all the data. */ if (chain == NULL) { chain = evbuffer_chain_new(datlen); if (!chain) goto done; evbuffer_chain_insert(buf, chain); } if ((chain->flags & EVBUFFER_IMMUTABLE) == 0) { /* Always true for mutable buffers */ EVUTIL_ASSERT(chain->misalign >= 0 && (ev_uint64_t)chain->misalign <= EVBUFFER_CHAIN_MAX); remain = chain->buffer_len - (size_t)chain->misalign - chain->off; if (remain >= datlen) { /* there's enough space to hold all the data in the * current last chain */ memcpy(chain->buffer + chain->misalign + chain->off, data, datlen); chain->off += datlen; buf->total_len += datlen; buf->n_add_for_cb += datlen; goto out; } else if (!CHAIN_PINNED(chain) && evbuffer_chain_should_realign(chain, datlen)) { /* we can fit the data into the misalignment */ evbuffer_chain_align(chain); memcpy(chain->buffer + chain->off, data, datlen); chain->off += datlen; buf->total_len += datlen; buf->n_add_for_cb += datlen; goto out; } } else { /* we cannot write any data to the last chain */ remain = 0; } /* we need to add another chain */ to_alloc = chain->buffer_len; if (to_alloc <= EVBUFFER_CHAIN_MAX_AUTO_SIZE/2) to_alloc <<= 1; if (datlen > to_alloc) to_alloc = datlen; tmp = evbuffer_chain_new(to_alloc); if (tmp == NULL) goto done; if (remain) { memcpy(chain->buffer + chain->misalign + chain->off, data, remain); chain->off += remain; buf->total_len += remain; buf->n_add_for_cb += remain; } data += remain; datlen -= remain; memcpy(tmp->buffer, data, datlen); tmp->off = datlen; evbuffer_chain_insert(buf, tmp); buf->n_add_for_cb += datlen; out: evbuffer_invoke_callbacks(buf); result = 0; done: EVBUFFER_UNLOCK(buf); return result; } int evbuffer_prepend(struct evbuffer *buf, const void *data, size_t datlen) { struct evbuffer_chain *chain, *tmp; int result = -1; EVBUFFER_LOCK(buf); if (buf->freeze_start) { goto done; } if (datlen > EV_SIZE_MAX - buf->total_len) { goto done; } chain = buf->first; if (chain == NULL) { chain = evbuffer_chain_new(datlen); if (!chain) goto done; evbuffer_chain_insert(buf, chain); } /* we cannot touch immutable buffers */ if ((chain->flags & EVBUFFER_IMMUTABLE) == 0) { /* Always true for mutable buffers */ EVUTIL_ASSERT(chain->misalign >= 0 && (ev_uint64_t)chain->misalign <= EVBUFFER_CHAIN_MAX); /* If this chain is empty, we can treat it as * 'empty at the beginning' rather than 'empty at the end' */ if (chain->off == 0) chain->misalign = chain->buffer_len; if ((size_t)chain->misalign >= datlen) { /* we have enough space to fit everything */ memcpy(chain->buffer + chain->misalign - datlen, data, datlen); chain->off += datlen; chain->misalign -= datlen; buf->total_len += datlen; buf->n_add_for_cb += datlen; goto out; } else if (chain->misalign) { /* we can only fit some of the data. */ memcpy(chain->buffer, (char*)data + datlen - chain->misalign, (size_t)chain->misalign); chain->off += (size_t)chain->misalign; buf->total_len += (size_t)chain->misalign; buf->n_add_for_cb += (size_t)chain->misalign; datlen -= (size_t)chain->misalign; chain->misalign = 0; } } /* we need to add another chain */ if ((tmp = evbuffer_chain_new(datlen)) == NULL) goto done; buf->first = tmp; if (buf->last_with_datap == &buf->first) buf->last_with_datap = &tmp->next; tmp->next = chain; tmp->off = datlen; EVUTIL_ASSERT(datlen <= tmp->buffer_len); tmp->misalign = tmp->buffer_len - datlen; memcpy(tmp->buffer + tmp->misalign, data, datlen); buf->total_len += datlen; buf->n_add_for_cb += (size_t)chain->misalign; out: evbuffer_invoke_callbacks(buf); result = 0; done: EVBUFFER_UNLOCK(buf); return result; } /** Helper: realigns the memory in chain->buffer so that misalign is 0. */ static void evbuffer_chain_align(struct evbuffer_chain *chain) { EVUTIL_ASSERT(!(chain->flags & EVBUFFER_IMMUTABLE)); EVUTIL_ASSERT(!(chain->flags & EVBUFFER_MEM_PINNED_ANY)); memmove(chain->buffer, chain->buffer + chain->misalign, chain->off); chain->misalign = 0; } #define MAX_TO_COPY_IN_EXPAND 4096 #define MAX_TO_REALIGN_IN_EXPAND 2048 /** Helper: return true iff we should realign chain to fit datalen bytes of data in it. */ static int evbuffer_chain_should_realign(struct evbuffer_chain *chain, size_t datlen) { return chain->buffer_len - chain->off >= datlen && (chain->off < chain->buffer_len / 2) && (chain->off <= MAX_TO_REALIGN_IN_EXPAND); } /* Expands the available space in the event buffer to at least datlen, all in * a single chunk. Return that chunk. */ static struct evbuffer_chain * evbuffer_expand_singlechain(struct evbuffer *buf, size_t datlen) { struct evbuffer_chain *chain, **chainp; struct evbuffer_chain *result = NULL; ASSERT_EVBUFFER_LOCKED(buf); chainp = buf->last_with_datap; /* XXX If *chainp is no longer writeable, but has enough space in its * misalign, this might be a bad idea: we could still use *chainp, not * (*chainp)->next. */ if (*chainp && CHAIN_SPACE_LEN(*chainp) == 0) chainp = &(*chainp)->next; /* 'chain' now points to the first chain with writable space (if any) * We will either use it, realign it, replace it, or resize it. */ chain = *chainp; if (chain == NULL || (chain->flags & (EVBUFFER_IMMUTABLE|EVBUFFER_MEM_PINNED_ANY))) { /* We can't use the last_with_data chain at all. Just add a * new one that's big enough. */ goto insert_new; } /* If we can fit all the data, then we don't have to do anything */ if (CHAIN_SPACE_LEN(chain) >= datlen) { result = chain; goto ok; } /* If the chain is completely empty, just replace it by adding a new * empty chain. */ if (chain->off == 0) { goto insert_new; } /* If the misalignment plus the remaining space fulfills our data * needs, we could just force an alignment to happen. Afterwards, we * have enough space. But only do this if we're saving a lot of space * and not moving too much data. Otherwise the space savings are * probably offset by the time lost in copying. */ if (evbuffer_chain_should_realign(chain, datlen)) { evbuffer_chain_align(chain); result = chain; goto ok; } /* At this point, we can either resize the last chunk with space in * it, use the next chunk after it, or If we add a new chunk, we waste * CHAIN_SPACE_LEN(chain) bytes in the former last chunk. If we * resize, we have to copy chain->off bytes. */ /* Would expanding this chunk be affordable and worthwhile? */ if (CHAIN_SPACE_LEN(chain) < chain->buffer_len / 8 || chain->off > MAX_TO_COPY_IN_EXPAND || datlen >= (EVBUFFER_CHAIN_MAX - chain->off)) { /* It's not worth resizing this chain. Can the next one be * used? */ if (chain->next && CHAIN_SPACE_LEN(chain->next) >= datlen) { /* Yes, we can just use the next chain (which should * be empty. */ result = chain->next; goto ok; } else { /* No; append a new chain (which will free all * terminal empty chains.) */ goto insert_new; } } else { /* Okay, we're going to try to resize this chain: Not doing so * would waste at least 1/8 of its current allocation, and we * can do so without having to copy more than * MAX_TO_COPY_IN_EXPAND bytes. */ /* figure out how much space we need */ size_t length = chain->off + datlen; struct evbuffer_chain *tmp = evbuffer_chain_new(length); if (tmp == NULL) goto err; /* copy the data over that we had so far */ tmp->off = chain->off; memcpy(tmp->buffer, chain->buffer + chain->misalign, chain->off); /* fix up the list */ EVUTIL_ASSERT(*chainp == chain); result = *chainp = tmp; if (buf->last == chain) buf->last = tmp; tmp->next = chain->next; evbuffer_chain_free(chain); goto ok; } insert_new: result = evbuffer_chain_insert_new(buf, datlen); if (!result) goto err; ok: EVUTIL_ASSERT(result); EVUTIL_ASSERT(CHAIN_SPACE_LEN(result) >= datlen); err: return result; } /* Make sure that datlen bytes are available for writing in the last n * chains. Never copies or moves data. */ int _evbuffer_expand_fast(struct evbuffer *buf, size_t datlen, int n) { struct evbuffer_chain *chain = buf->last, *tmp, *next; size_t avail; int used; ASSERT_EVBUFFER_LOCKED(buf); EVUTIL_ASSERT(n >= 2); if (chain == NULL || (chain->flags & EVBUFFER_IMMUTABLE)) { /* There is no last chunk, or we can't touch the last chunk. * Just add a new chunk. */ chain = evbuffer_chain_new(datlen); if (chain == NULL) return (-1); evbuffer_chain_insert(buf, chain); return (0); } used = 0; /* number of chains we're using space in. */ avail = 0; /* how much space they have. */ /* How many bytes can we stick at the end of buffer as it is? Iterate * over the chains at the end of the buffer, tring to see how much * space we have in the first n. */ for (chain = *buf->last_with_datap; chain; chain = chain->next) { if (chain->off) { size_t space = (size_t) CHAIN_SPACE_LEN(chain); EVUTIL_ASSERT(chain == *buf->last_with_datap); if (space) { avail += space; ++used; } } else { /* No data in chain; realign it. */ chain->misalign = 0; avail += chain->buffer_len; ++used; } if (avail >= datlen) { /* There is already enough space. Just return */ return (0); } if (used == n) break; } /* There wasn't enough space in the first n chains with space in * them. Either add a new chain with enough space, or replace all * empty chains with one that has enough space, depending on n. */ if (used < n) { /* The loop ran off the end of the chains before it hit n * chains; we can add another. */ EVUTIL_ASSERT(chain == NULL); tmp = evbuffer_chain_new(datlen - avail); if (tmp == NULL) return (-1); buf->last->next = tmp; buf->last = tmp; /* (we would only set last_with_data if we added the first * chain. But if the buffer had no chains, we would have * just allocated a new chain earlier) */ return (0); } else { /* Nuke _all_ the empty chains. */ int rmv_all = 0; /* True iff we removed last_with_data. */ chain = *buf->last_with_datap; if (!chain->off) { EVUTIL_ASSERT(chain == buf->first); rmv_all = 1; avail = 0; } else { /* can't overflow, since only mutable chains have * huge misaligns. */ avail = (size_t) CHAIN_SPACE_LEN(chain); chain = chain->next; } for (; chain; chain = next) { next = chain->next; EVUTIL_ASSERT(chain->off == 0); evbuffer_chain_free(chain); } EVUTIL_ASSERT(datlen >= avail); tmp = evbuffer_chain_new(datlen - avail); if (tmp == NULL) { if (rmv_all) { ZERO_CHAIN(buf); } else { buf->last = *buf->last_with_datap; (*buf->last_with_datap)->next = NULL; } return (-1); } if (rmv_all) { buf->first = buf->last = tmp; buf->last_with_datap = &buf->first; } else { (*buf->last_with_datap)->next = tmp; buf->last = tmp; } return (0); } } int evbuffer_expand(struct evbuffer *buf, size_t datlen) { struct evbuffer_chain *chain; EVBUFFER_LOCK(buf); chain = evbuffer_expand_singlechain(buf, datlen); EVBUFFER_UNLOCK(buf); return chain ? 0 : -1; } /* * Reads data from a file descriptor into a buffer. */ #if defined(_EVENT_HAVE_SYS_UIO_H) || defined(WIN32) #define USE_IOVEC_IMPL #endif #ifdef USE_IOVEC_IMPL #ifdef _EVENT_HAVE_SYS_UIO_H /* number of iovec we use for writev, fragmentation is going to determine * how much we end up writing */ #define DEFAULT_WRITE_IOVEC 128 #if defined(UIO_MAXIOV) && UIO_MAXIOV < DEFAULT_WRITE_IOVEC #define NUM_WRITE_IOVEC UIO_MAXIOV #elif defined(IOV_MAX) && IOV_MAX < DEFAULT_WRITE_IOVEC #define NUM_WRITE_IOVEC IOV_MAX #else #define NUM_WRITE_IOVEC DEFAULT_WRITE_IOVEC #endif #define IOV_TYPE struct iovec #define IOV_PTR_FIELD iov_base #define IOV_LEN_FIELD iov_len #define IOV_LEN_TYPE size_t #else #define NUM_WRITE_IOVEC 16 #define IOV_TYPE WSABUF #define IOV_PTR_FIELD buf #define IOV_LEN_FIELD len #define IOV_LEN_TYPE unsigned long #endif #endif #define NUM_READ_IOVEC 4 #define EVBUFFER_MAX_READ 4096 /** Helper function to figure out which space to use for reading data into an evbuffer. Internal use only. @param buf The buffer to read into @param howmuch How much we want to read. @param vecs An array of two or more iovecs or WSABUFs. @param n_vecs_avail The length of vecs @param chainp A pointer to a variable to hold the first chain we're reading into. @param exact Boolean: if true, we do not provide more than 'howmuch' space in the vectors, even if more space is available. @return The number of buffers we're using. */ int _evbuffer_read_setup_vecs(struct evbuffer *buf, ev_ssize_t howmuch, struct evbuffer_iovec *vecs, int n_vecs_avail, struct evbuffer_chain ***chainp, int exact) { struct evbuffer_chain *chain; struct evbuffer_chain **firstchainp; size_t so_far; int i; ASSERT_EVBUFFER_LOCKED(buf); if (howmuch < 0) return -1; so_far = 0; /* Let firstchain be the first chain with any space on it */ firstchainp = buf->last_with_datap; if (CHAIN_SPACE_LEN(*firstchainp) == 0) { firstchainp = &(*firstchainp)->next; } chain = *firstchainp; for (i = 0; i < n_vecs_avail && so_far < (size_t)howmuch; ++i) { size_t avail = (size_t) CHAIN_SPACE_LEN(chain); if (avail > (howmuch - so_far) && exact) avail = howmuch - so_far; vecs[i].iov_base = CHAIN_SPACE_PTR(chain); vecs[i].iov_len = avail; so_far += avail; chain = chain->next; } *chainp = firstchainp; return i; } static int get_n_bytes_readable_on_socket(evutil_socket_t fd) { #if defined(FIONREAD) && defined(WIN32) unsigned long lng = EVBUFFER_MAX_READ; if (ioctlsocket(fd, FIONREAD, &lng) < 0) return -1; /* Can overflow, but mostly harmlessly. XXXX */ return (int)lng; #elif defined(FIONREAD) int n = EVBUFFER_MAX_READ; if (ioctl(fd, FIONREAD, &n) < 0) return -1; return n; #else return EVBUFFER_MAX_READ; #endif } /* TODO(niels): should this function return ev_ssize_t and take ev_ssize_t * as howmuch? */ int evbuffer_read(struct evbuffer *buf, evutil_socket_t fd, int howmuch) { struct evbuffer_chain **chainp; int n; int result; #ifdef USE_IOVEC_IMPL int nvecs, i, remaining; #else struct evbuffer_chain *chain; unsigned char *p; #endif EVBUFFER_LOCK(buf); if (buf->freeze_end) { result = -1; goto done; } n = get_n_bytes_readable_on_socket(fd); if (n <= 0 || n > EVBUFFER_MAX_READ) n = EVBUFFER_MAX_READ; if (howmuch < 0 || howmuch > n) howmuch = n; #ifdef USE_IOVEC_IMPL /* Since we can use iovecs, we're willing to use the last * NUM_READ_IOVEC chains. */ if (_evbuffer_expand_fast(buf, howmuch, NUM_READ_IOVEC) == -1) { result = -1; goto done; } else { IOV_TYPE vecs[NUM_READ_IOVEC]; #ifdef _EVBUFFER_IOVEC_IS_NATIVE nvecs = _evbuffer_read_setup_vecs(buf, howmuch, vecs, NUM_READ_IOVEC, &chainp, 1); #else /* We aren't using the native struct iovec. Therefore, we are on win32. */ struct evbuffer_iovec ev_vecs[NUM_READ_IOVEC]; nvecs = _evbuffer_read_setup_vecs(buf, howmuch, ev_vecs, 2, &chainp, 1); for (i=0; i < nvecs; ++i) WSABUF_FROM_EVBUFFER_IOV(&vecs[i], &ev_vecs[i]); #endif #ifdef WIN32 { DWORD bytesRead; DWORD flags=0; if (WSARecv(fd, vecs, nvecs, &bytesRead, &flags, NULL, NULL)) { /* The read failed. It might be a close, * or it might be an error. */ if (WSAGetLastError() == WSAECONNABORTED) n = 0; else n = -1; } else n = bytesRead; } #else n = readv(fd, vecs, nvecs); #endif } #else /*!USE_IOVEC_IMPL*/ /* If we don't have FIONREAD, we might waste some space here */ /* XXX we _will_ waste some space here if there is any space left * over on buf->last. */ if ((chain = evbuffer_expand_singlechain(buf, howmuch)) == NULL) { result = -1; goto done; } /* We can append new data at this point */ p = chain->buffer + chain->misalign + chain->off; #ifndef WIN32 n = read(fd, p, howmuch); #else n = recv(fd, p, howmuch, 0); #endif #endif /* USE_IOVEC_IMPL */ if (n == -1) { result = -1; goto done; } if (n == 0) { result = 0; goto done; } #ifdef USE_IOVEC_IMPL remaining = n; for (i=0; i < nvecs; ++i) { /* can't overflow, since only mutable chains have * huge misaligns. */ size_t space = (size_t) CHAIN_SPACE_LEN(*chainp); /* XXXX This is a kludge that can waste space in perverse * situations. */ if (space > EVBUFFER_CHAIN_MAX) space = EVBUFFER_CHAIN_MAX; if ((ev_ssize_t)space < remaining) { (*chainp)->off += space; remaining -= (int)space; } else { (*chainp)->off += remaining; buf->last_with_datap = chainp; break; } chainp = &(*chainp)->next; } #else chain->off += n; advance_last_with_data(buf); #endif buf->total_len += n; buf->n_add_for_cb += n; /* Tell someone about changes in this buffer */ evbuffer_invoke_callbacks(buf); result = n; done: EVBUFFER_UNLOCK(buf); return result; } #ifdef WIN32 static int evbuffer_readfile(struct evbuffer *buf, evutil_socket_t fd, ev_ssize_t howmuch) { int result; int nchains, n; struct evbuffer_iovec v[2]; EVBUFFER_LOCK(buf); if (buf->freeze_end) { result = -1; goto done; } if (howmuch < 0) howmuch = 16384; /* XXX we _will_ waste some space here if there is any space left * over on buf->last. */ nchains = evbuffer_reserve_space(buf, howmuch, v, 2); if (nchains < 1 || nchains > 2) { result = -1; goto done; } n = read((int)fd, v[0].iov_base, (unsigned int)v[0].iov_len); if (n <= 0) { result = n; goto done; } v[0].iov_len = (IOV_LEN_TYPE) n; /* XXXX another problem with big n.*/ if (nchains > 1) { n = read((int)fd, v[1].iov_base, (unsigned int)v[1].iov_len); if (n <= 0) { result = (unsigned long) v[0].iov_len; evbuffer_commit_space(buf, v, 1); goto done; } v[1].iov_len = n; } evbuffer_commit_space(buf, v, nchains); result = n; done: EVBUFFER_UNLOCK(buf); return result; } #endif #ifdef USE_IOVEC_IMPL static inline int evbuffer_write_iovec(struct evbuffer *buffer, evutil_socket_t fd, ev_ssize_t howmuch) { IOV_TYPE iov[NUM_WRITE_IOVEC]; struct evbuffer_chain *chain = buffer->first; int n, i = 0; if (howmuch < 0) return -1; ASSERT_EVBUFFER_LOCKED(buffer); /* XXX make this top out at some maximal data length? if the * buffer has (say) 1MB in it, split over 128 chains, there's * no way it all gets written in one go. */ while (chain != NULL && i < NUM_WRITE_IOVEC && howmuch) { #ifdef USE_SENDFILE /* we cannot write the file info via writev */ if (chain->flags & EVBUFFER_SENDFILE) break; #endif iov[i].IOV_PTR_FIELD = (void *) (chain->buffer + chain->misalign); if ((size_t)howmuch >= chain->off) { /* XXXcould be problematic when windows supports mmap*/ iov[i++].IOV_LEN_FIELD = (IOV_LEN_TYPE)chain->off; howmuch -= chain->off; } else { /* XXXcould be problematic when windows supports mmap*/ iov[i++].IOV_LEN_FIELD = (IOV_LEN_TYPE)howmuch; break; } chain = chain->next; } if (! i) return 0; #ifdef WIN32 { DWORD bytesSent; if (WSASend(fd, iov, i, &bytesSent, 0, NULL, NULL)) n = -1; else n = bytesSent; } #else n = writev(fd, iov, i); #endif return (n); } #endif #ifdef USE_SENDFILE static inline int evbuffer_write_sendfile(struct evbuffer *buffer, evutil_socket_t fd, ev_ssize_t howmuch) { struct evbuffer_chain *chain = buffer->first; struct evbuffer_chain_fd *info = EVBUFFER_CHAIN_EXTRA(struct evbuffer_chain_fd, chain); #if defined(SENDFILE_IS_MACOSX) || defined(SENDFILE_IS_FREEBSD) int res; off_t len = chain->off; #elif defined(SENDFILE_IS_LINUX) || defined(SENDFILE_IS_SOLARIS) ev_ssize_t res; off_t offset = chain->misalign; #endif ASSERT_EVBUFFER_LOCKED(buffer); #if defined(SENDFILE_IS_MACOSX) res = sendfile(info->fd, fd, chain->misalign, &len, NULL, 0); if (res == -1 && !EVUTIL_ERR_RW_RETRIABLE(errno)) return (-1); return (len); #elif defined(SENDFILE_IS_FREEBSD) res = sendfile(info->fd, fd, chain->misalign, chain->off, NULL, &len, 0); if (res == -1 && !EVUTIL_ERR_RW_RETRIABLE(errno)) return (-1); return (len); #elif defined(SENDFILE_IS_LINUX) /* TODO(niels): implement splice */ res = sendfile(fd, info->fd, &offset, chain->off); if (res == -1 && EVUTIL_ERR_RW_RETRIABLE(errno)) { /* if this is EAGAIN or EINTR return 0; otherwise, -1 */ return (0); } return (res); #elif defined(SENDFILE_IS_SOLARIS) { const off_t offset_orig = offset; res = sendfile(fd, info->fd, &offset, chain->off); if (res == -1 && EVUTIL_ERR_RW_RETRIABLE(errno)) { if (offset - offset_orig) return offset - offset_orig; /* if this is EAGAIN or EINTR and no bytes were * written, return 0 */ return (0); } return (res); } #endif } #endif int evbuffer_write_atmost(struct evbuffer *buffer, evutil_socket_t fd, ev_ssize_t howmuch) { int n = -1; EVBUFFER_LOCK(buffer); if (buffer->freeze_start) { goto done; } if (howmuch < 0 || (size_t)howmuch > buffer->total_len) howmuch = buffer->total_len; if (howmuch > 0) { #ifdef USE_SENDFILE struct evbuffer_chain *chain = buffer->first; if (chain != NULL && (chain->flags & EVBUFFER_SENDFILE)) n = evbuffer_write_sendfile(buffer, fd, howmuch); else { #endif #ifdef USE_IOVEC_IMPL n = evbuffer_write_iovec(buffer, fd, howmuch); #elif defined(WIN32) /* XXX(nickm) Don't disable this code until we know if * the WSARecv code above works. */ void *p = evbuffer_pullup(buffer, howmuch); EVUTIL_ASSERT(p || !howmuch); n = send(fd, p, howmuch, 0); #else void *p = evbuffer_pullup(buffer, howmuch); EVUTIL_ASSERT(p || !howmuch); n = write(fd, p, howmuch); #endif #ifdef USE_SENDFILE } #endif } if (n > 0) evbuffer_drain(buffer, n); done: EVBUFFER_UNLOCK(buffer); return (n); } int evbuffer_write(struct evbuffer *buffer, evutil_socket_t fd) { return evbuffer_write_atmost(buffer, fd, -1); } unsigned char * evbuffer_find(struct evbuffer *buffer, const unsigned char *what, size_t len) { unsigned char *search; struct evbuffer_ptr ptr; EVBUFFER_LOCK(buffer); ptr = evbuffer_search(buffer, (const char *)what, len, NULL); if (ptr.pos < 0) { search = NULL; } else { search = evbuffer_pullup(buffer, ptr.pos + len); if (search) search += ptr.pos; } EVBUFFER_UNLOCK(buffer); return search; } int evbuffer_ptr_set(struct evbuffer *buf, struct evbuffer_ptr *pos, size_t position, enum evbuffer_ptr_how how) { size_t left = position; struct evbuffer_chain *chain = NULL; EVBUFFER_LOCK(buf); switch (how) { case EVBUFFER_PTR_SET: chain = buf->first; pos->pos = position; position = 0; break; case EVBUFFER_PTR_ADD: /* this avoids iterating over all previous chains if we just want to advance the position */ if (pos->pos < 0 || EV_SIZE_MAX - position < (size_t)pos->pos) { EVBUFFER_UNLOCK(buf); return -1; } chain = pos->_internal.chain; pos->pos += position; position = pos->_internal.pos_in_chain; break; } EVUTIL_ASSERT(EV_SIZE_MAX - left >= position); while (chain && position + left >= chain->off) { left -= chain->off - position; chain = chain->next; position = 0; } if (chain) { pos->_internal.chain = chain; pos->_internal.pos_in_chain = position + left; } else { pos->_internal.chain = NULL; pos->pos = -1; } EVBUFFER_UNLOCK(buf); return chain != NULL ? 0 : -1; } /** Compare the bytes in buf at position pos to the len bytes in mem. Return less than 0, 0, or greater than 0 as memcmp. */ static int evbuffer_ptr_memcmp(const struct evbuffer *buf, const struct evbuffer_ptr *pos, const char *mem, size_t len) { struct evbuffer_chain *chain; size_t position; int r; ASSERT_EVBUFFER_LOCKED(buf); if (pos->pos < 0 || EV_SIZE_MAX - len < (size_t)pos->pos || pos->pos + len > buf->total_len) return -1; chain = pos->_internal.chain; position = pos->_internal.pos_in_chain; while (len && chain) { size_t n_comparable; if (len + position > chain->off) n_comparable = chain->off - position; else n_comparable = len; r = memcmp(chain->buffer + chain->misalign + position, mem, n_comparable); if (r) return r; mem += n_comparable; len -= n_comparable; position = 0; chain = chain->next; } return 0; } struct evbuffer_ptr evbuffer_search(struct evbuffer *buffer, const char *what, size_t len, const struct evbuffer_ptr *start) { return evbuffer_search_range(buffer, what, len, start, NULL); } struct evbuffer_ptr evbuffer_search_range(struct evbuffer *buffer, const char *what, size_t len, const struct evbuffer_ptr *start, const struct evbuffer_ptr *end) { struct evbuffer_ptr pos; struct evbuffer_chain *chain, *last_chain = NULL; const unsigned char *p; char first; EVBUFFER_LOCK(buffer); if (start) { memcpy(&pos, start, sizeof(pos)); chain = pos._internal.chain; } else { pos.pos = 0; chain = pos._internal.chain = buffer->first; pos._internal.pos_in_chain = 0; } if (end) last_chain = end->_internal.chain; if (!len || len > EV_SSIZE_MAX) goto done; first = what[0]; while (chain) { const unsigned char *start_at = chain->buffer + chain->misalign + pos._internal.pos_in_chain; p = memchr(start_at, first, chain->off - pos._internal.pos_in_chain); if (p) { pos.pos += p - start_at; pos._internal.pos_in_chain += p - start_at; if (!evbuffer_ptr_memcmp(buffer, &pos, what, len)) { if (end && pos.pos + (ev_ssize_t)len > end->pos) goto not_found; else goto done; } ++pos.pos; ++pos._internal.pos_in_chain; if (pos._internal.pos_in_chain == chain->off) { chain = pos._internal.chain = chain->next; pos._internal.pos_in_chain = 0; } } else { if (chain == last_chain) goto not_found; pos.pos += chain->off - pos._internal.pos_in_chain; chain = pos._internal.chain = chain->next; pos._internal.pos_in_chain = 0; } } not_found: pos.pos = -1; pos._internal.chain = NULL; done: EVBUFFER_UNLOCK(buffer); return pos; } int evbuffer_peek(struct evbuffer *buffer, ev_ssize_t len, struct evbuffer_ptr *start_at, struct evbuffer_iovec *vec, int n_vec) { struct evbuffer_chain *chain; int idx = 0; ev_ssize_t len_so_far = 0; EVBUFFER_LOCK(buffer); if (start_at) { chain = start_at->_internal.chain; len_so_far = chain->off - start_at->_internal.pos_in_chain; idx = 1; if (n_vec > 0) { vec[0].iov_base = chain->buffer + chain->misalign + start_at->_internal.pos_in_chain; vec[0].iov_len = len_so_far; } chain = chain->next; } else { chain = buffer->first; } if (n_vec == 0 && len < 0) { /* If no vectors are provided and they asked for "everything", * pretend they asked for the actual available amount. */ len = buffer->total_len; if (start_at) { len -= start_at->pos; } } while (chain) { if (len >= 0 && len_so_far >= len) break; if (idxbuffer + chain->misalign; vec[idx].iov_len = chain->off; } else if (len<0) { break; } ++idx; len_so_far += chain->off; chain = chain->next; } EVBUFFER_UNLOCK(buffer); return idx; } int evbuffer_add_vprintf(struct evbuffer *buf, const char *fmt, va_list ap) { char *buffer; size_t space; int sz, result = -1; va_list aq; struct evbuffer_chain *chain; EVBUFFER_LOCK(buf); if (buf->freeze_end) { goto done; } /* make sure that at least some space is available */ if ((chain = evbuffer_expand_singlechain(buf, 64)) == NULL) goto done; for (;;) { #if 0 size_t used = chain->misalign + chain->off; buffer = (char *)chain->buffer + chain->misalign + chain->off; EVUTIL_ASSERT(chain->buffer_len >= used); space = chain->buffer_len - used; #endif buffer = (char*) CHAIN_SPACE_PTR(chain); space = (size_t) CHAIN_SPACE_LEN(chain); #ifndef va_copy #define va_copy(dst, src) memcpy(&(dst), &(src), sizeof(va_list)) #endif va_copy(aq, ap); sz = evutil_vsnprintf(buffer, space, fmt, aq); va_end(aq); if (sz < 0) goto done; if (INT_MAX >= EVBUFFER_CHAIN_MAX && (size_t)sz >= EVBUFFER_CHAIN_MAX) goto done; if ((size_t)sz < space) { chain->off += sz; buf->total_len += sz; buf->n_add_for_cb += sz; advance_last_with_data(buf); evbuffer_invoke_callbacks(buf); result = sz; goto done; } if ((chain = evbuffer_expand_singlechain(buf, sz + 1)) == NULL) goto done; } /* NOTREACHED */ done: EVBUFFER_UNLOCK(buf); return result; } int evbuffer_add_printf(struct evbuffer *buf, const char *fmt, ...) { int res = -1; va_list ap; va_start(ap, fmt); res = evbuffer_add_vprintf(buf, fmt, ap); va_end(ap); return (res); } int evbuffer_add_reference(struct evbuffer *outbuf, const void *data, size_t datlen, evbuffer_ref_cleanup_cb cleanupfn, void *extra) { struct evbuffer_chain *chain; struct evbuffer_chain_reference *info; int result = -1; chain = evbuffer_chain_new(sizeof(struct evbuffer_chain_reference)); if (!chain) return (-1); chain->flags |= EVBUFFER_REFERENCE | EVBUFFER_IMMUTABLE; chain->buffer = (u_char *)data; chain->buffer_len = datlen; chain->off = datlen; info = EVBUFFER_CHAIN_EXTRA(struct evbuffer_chain_reference, chain); info->cleanupfn = cleanupfn; info->extra = extra; EVBUFFER_LOCK(outbuf); if (outbuf->freeze_end) { /* don't call chain_free; we do not want to actually invoke * the cleanup function */ mm_free(chain); goto done; } evbuffer_chain_insert(outbuf, chain); outbuf->n_add_for_cb += datlen; evbuffer_invoke_callbacks(outbuf); result = 0; done: EVBUFFER_UNLOCK(outbuf); return result; } /* TODO(niels): maybe we don't want to own the fd, however, in that * case, we should dup it - dup is cheap. Perhaps, we should use a * callback instead? */ /* TODO(niels): we may want to add to automagically convert to mmap, in * case evbuffer_remove() or evbuffer_pullup() are being used. */ int evbuffer_add_file(struct evbuffer *outbuf, int fd, ev_off_t offset, ev_off_t length) { #if defined(USE_SENDFILE) || defined(_EVENT_HAVE_MMAP) struct evbuffer_chain *chain; struct evbuffer_chain_fd *info; #endif #if defined(USE_SENDFILE) int sendfile_okay = 1; #endif int ok = 1; if (offset < 0 || length < 0 || ((ev_uint64_t)length > EVBUFFER_CHAIN_MAX) || (ev_uint64_t)offset > (ev_uint64_t)(EVBUFFER_CHAIN_MAX - length)) return (-1); #if defined(USE_SENDFILE) if (use_sendfile) { EVBUFFER_LOCK(outbuf); sendfile_okay = outbuf->flags & EVBUFFER_FLAG_DRAINS_TO_FD; EVBUFFER_UNLOCK(outbuf); } if (use_sendfile && sendfile_okay) { chain = evbuffer_chain_new(sizeof(struct evbuffer_chain_fd)); if (chain == NULL) { event_warn("%s: out of memory", __func__); return (-1); } chain->flags |= EVBUFFER_SENDFILE | EVBUFFER_IMMUTABLE; chain->buffer = NULL; /* no reading possible */ chain->buffer_len = length + offset; chain->off = length; chain->misalign = offset; info = EVBUFFER_CHAIN_EXTRA(struct evbuffer_chain_fd, chain); info->fd = fd; EVBUFFER_LOCK(outbuf); if (outbuf->freeze_end) { mm_free(chain); ok = 0; } else { outbuf->n_add_for_cb += length; evbuffer_chain_insert(outbuf, chain); } } else #endif #if defined(_EVENT_HAVE_MMAP) if (use_mmap) { void *mapped = mmap(NULL, length + offset, PROT_READ, #ifdef MAP_NOCACHE MAP_NOCACHE | #endif #ifdef MAP_FILE MAP_FILE | #endif MAP_PRIVATE, fd, 0); /* some mmap implementations require offset to be a multiple of * the page size. most users of this api, are likely to use 0 * so mapping everything is not likely to be a problem. * TODO(niels): determine page size and round offset to that * page size to avoid mapping too much memory. */ if (mapped == MAP_FAILED) { event_warn("%s: mmap(%d, %d, %zu) failed", __func__, fd, 0, (size_t)(offset + length)); return (-1); } chain = evbuffer_chain_new(sizeof(struct evbuffer_chain_fd)); if (chain == NULL) { event_warn("%s: out of memory", __func__); munmap(mapped, length); return (-1); } chain->flags |= EVBUFFER_MMAP | EVBUFFER_IMMUTABLE; chain->buffer = mapped; chain->buffer_len = length + offset; chain->off = length + offset; info = EVBUFFER_CHAIN_EXTRA(struct evbuffer_chain_fd, chain); info->fd = fd; EVBUFFER_LOCK(outbuf); if (outbuf->freeze_end) { info->fd = -1; evbuffer_chain_free(chain); ok = 0; } else { outbuf->n_add_for_cb += length; evbuffer_chain_insert(outbuf, chain); /* we need to subtract whatever we don't need */ evbuffer_drain(outbuf, offset); } } else #endif { /* the default implementation */ struct evbuffer *tmp = evbuffer_new(); ev_ssize_t read; if (tmp == NULL) return (-1); #ifdef WIN32 #define lseek _lseeki64 #endif if (lseek(fd, offset, SEEK_SET) == -1) { evbuffer_free(tmp); return (-1); } /* we add everything to a temporary buffer, so that we * can abort without side effects if the read fails. */ while (length) { ev_ssize_t to_read = length > EV_SSIZE_MAX ? EV_SSIZE_MAX : (ev_ssize_t)length; read = evbuffer_readfile(tmp, fd, to_read); if (read == -1) { evbuffer_free(tmp); return (-1); } length -= read; } EVBUFFER_LOCK(outbuf); if (outbuf->freeze_end) { evbuffer_free(tmp); ok = 0; } else { evbuffer_add_buffer(outbuf, tmp); evbuffer_free(tmp); #ifdef WIN32 #define close _close #endif close(fd); } } if (ok) evbuffer_invoke_callbacks(outbuf); EVBUFFER_UNLOCK(outbuf); return ok ? 0 : -1; } void evbuffer_setcb(struct evbuffer *buffer, evbuffer_cb cb, void *cbarg) { EVBUFFER_LOCK(buffer); if (!TAILQ_EMPTY(&buffer->callbacks)) evbuffer_remove_all_callbacks(buffer); if (cb) { struct evbuffer_cb_entry *ent = evbuffer_add_cb(buffer, NULL, cbarg); ent->cb.cb_obsolete = cb; ent->flags |= EVBUFFER_CB_OBSOLETE; } EVBUFFER_UNLOCK(buffer); } struct evbuffer_cb_entry * evbuffer_add_cb(struct evbuffer *buffer, evbuffer_cb_func cb, void *cbarg) { struct evbuffer_cb_entry *e; if (! (e = mm_calloc(1, sizeof(struct evbuffer_cb_entry)))) return NULL; EVBUFFER_LOCK(buffer); e->cb.cb_func = cb; e->cbarg = cbarg; e->flags = EVBUFFER_CB_ENABLED; TAILQ_INSERT_HEAD(&buffer->callbacks, e, next); EVBUFFER_UNLOCK(buffer); return e; } int evbuffer_remove_cb_entry(struct evbuffer *buffer, struct evbuffer_cb_entry *ent) { EVBUFFER_LOCK(buffer); TAILQ_REMOVE(&buffer->callbacks, ent, next); EVBUFFER_UNLOCK(buffer); mm_free(ent); return 0; } int evbuffer_remove_cb(struct evbuffer *buffer, evbuffer_cb_func cb, void *cbarg) { struct evbuffer_cb_entry *cbent; int result = -1; EVBUFFER_LOCK(buffer); TAILQ_FOREACH(cbent, &buffer->callbacks, next) { if (cb == cbent->cb.cb_func && cbarg == cbent->cbarg) { result = evbuffer_remove_cb_entry(buffer, cbent); goto done; } } done: EVBUFFER_UNLOCK(buffer); return result; } int evbuffer_cb_set_flags(struct evbuffer *buffer, struct evbuffer_cb_entry *cb, ev_uint32_t flags) { /* the user isn't allowed to mess with these. */ flags &= ~EVBUFFER_CB_INTERNAL_FLAGS; EVBUFFER_LOCK(buffer); cb->flags |= flags; EVBUFFER_UNLOCK(buffer); return 0; } int evbuffer_cb_clear_flags(struct evbuffer *buffer, struct evbuffer_cb_entry *cb, ev_uint32_t flags) { /* the user isn't allowed to mess with these. */ flags &= ~EVBUFFER_CB_INTERNAL_FLAGS; EVBUFFER_LOCK(buffer); cb->flags &= ~flags; EVBUFFER_UNLOCK(buffer); return 0; } int evbuffer_freeze(struct evbuffer *buffer, int start) { EVBUFFER_LOCK(buffer); if (start) buffer->freeze_start = 1; else buffer->freeze_end = 1; EVBUFFER_UNLOCK(buffer); return 0; } int evbuffer_unfreeze(struct evbuffer *buffer, int start) { EVBUFFER_LOCK(buffer); if (start) buffer->freeze_start = 0; else buffer->freeze_end = 0; EVBUFFER_UNLOCK(buffer); return 0; } #if 0 void evbuffer_cb_suspend(struct evbuffer *buffer, struct evbuffer_cb_entry *cb) { if (!(cb->flags & EVBUFFER_CB_SUSPENDED)) { cb->size_before_suspend = evbuffer_get_length(buffer); cb->flags |= EVBUFFER_CB_SUSPENDED; } } void evbuffer_cb_unsuspend(struct evbuffer *buffer, struct evbuffer_cb_entry *cb) { if ((cb->flags & EVBUFFER_CB_SUSPENDED)) { unsigned call = (cb->flags & EVBUFFER_CB_CALL_ON_UNSUSPEND); size_t sz = cb->size_before_suspend; cb->flags &= ~(EVBUFFER_CB_SUSPENDED| EVBUFFER_CB_CALL_ON_UNSUSPEND); cb->size_before_suspend = 0; if (call && (cb->flags & EVBUFFER_CB_ENABLED)) { cb->cb(buffer, sz, evbuffer_get_length(buffer), cb->cbarg); } } } #endif /* These hooks are exposed so that the unit tests can temporarily disable * sendfile support in order to test mmap, or both to test linear * access. Don't use it; if we need to add a way to disable sendfile support * in the future, it will probably be via an alternate version of * evbuffer_add_file() with a 'flags' argument. */ int _evbuffer_testing_use_sendfile(void); int _evbuffer_testing_use_mmap(void); int _evbuffer_testing_use_linear_file_access(void); int _evbuffer_testing_use_sendfile(void) { int ok = 0; #ifdef USE_SENDFILE use_sendfile = 1; ok = 1; #endif #ifdef _EVENT_HAVE_MMAP use_mmap = 0; #endif return ok; } int _evbuffer_testing_use_mmap(void) { int ok = 0; #ifdef USE_SENDFILE use_sendfile = 0; #endif #ifdef _EVENT_HAVE_MMAP use_mmap = 1; ok = 1; #endif return ok; } int _evbuffer_testing_use_linear_file_access(void) { #ifdef USE_SENDFILE use_sendfile = 0; #endif #ifdef _EVENT_HAVE_MMAP use_mmap = 0; #endif return 1; } dnscrypt-proxy-1.9.4/src/libevent-modified/buffer_iocp.c000644 000765 000024 00000020634 13037731714 022765 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @file buffer_iocp.c This module implements overlapped read and write functions for evbuffer objects on Windows. */ #include "event2/buffer.h" #include "event2/buffer_compat.h" #include "event2/util.h" #include "event2/thread.h" #include "event2/event-config.h" #include "util-internal.h" #include "evthread-internal.h" #include "evbuffer-internal.h" #include "iocp-internal.h" #include "mm-internal.h" #include #include #include #define MAX_WSABUFS 16 /** An evbuffer that can handle overlapped IO. */ struct evbuffer_overlapped { struct evbuffer buffer; /** The socket that we're doing overlapped IO on. */ evutil_socket_t fd; /** pending I/O type */ unsigned read_in_progress : 1; unsigned write_in_progress : 1; /** The first pinned chain in the buffer. */ struct evbuffer_chain *first_pinned; /** How many chains are pinned; how many of the fields in buffers * are we using. */ int n_buffers; WSABUF buffers[MAX_WSABUFS]; }; /** Given an evbuffer, return the correponding evbuffer structure, or NULL if * the evbuffer isn't overlapped. */ static inline struct evbuffer_overlapped * upcast_evbuffer(struct evbuffer *buf) { if (!buf || !buf->is_overlapped) return NULL; return EVUTIL_UPCAST(buf, struct evbuffer_overlapped, buffer); } /** Unpin all the chains noted as pinned in 'eo'. */ static void pin_release(struct evbuffer_overlapped *eo, unsigned flag) { int i; struct evbuffer_chain *next, *chain = eo->first_pinned; for (i = 0; i < eo->n_buffers; ++i) { EVUTIL_ASSERT(chain); next = chain->next; _evbuffer_chain_unpin(chain, flag); chain = next; } } void evbuffer_commit_read(struct evbuffer *evbuf, ev_ssize_t nBytes) { struct evbuffer_overlapped *buf = upcast_evbuffer(evbuf); struct evbuffer_chain **chainp; size_t remaining, len; unsigned i; EVBUFFER_LOCK(evbuf); EVUTIL_ASSERT(buf->read_in_progress && !buf->write_in_progress); EVUTIL_ASSERT(nBytes >= 0); /* XXXX Can this be false? */ evbuffer_unfreeze(evbuf, 0); chainp = evbuf->last_with_datap; if (!((*chainp)->flags & EVBUFFER_MEM_PINNED_R)) chainp = &(*chainp)->next; remaining = nBytes; for (i = 0; remaining > 0 && i < (unsigned)buf->n_buffers; ++i) { EVUTIL_ASSERT(*chainp); len = buf->buffers[i].len; if (remaining < len) len = remaining; (*chainp)->off += len; evbuf->last_with_datap = chainp; remaining -= len; chainp = &(*chainp)->next; } pin_release(buf, EVBUFFER_MEM_PINNED_R); buf->read_in_progress = 0; evbuf->total_len += nBytes; evbuf->n_add_for_cb += nBytes; evbuffer_invoke_callbacks(evbuf); _evbuffer_decref_and_unlock(evbuf); } void evbuffer_commit_write(struct evbuffer *evbuf, ev_ssize_t nBytes) { struct evbuffer_overlapped *buf = upcast_evbuffer(evbuf); EVBUFFER_LOCK(evbuf); EVUTIL_ASSERT(buf->write_in_progress && !buf->read_in_progress); evbuffer_unfreeze(evbuf, 1); evbuffer_drain(evbuf, nBytes); pin_release(buf,EVBUFFER_MEM_PINNED_W); buf->write_in_progress = 0; _evbuffer_decref_and_unlock(evbuf); } struct evbuffer * evbuffer_overlapped_new(evutil_socket_t fd) { struct evbuffer_overlapped *evo; evo = mm_calloc(1, sizeof(struct evbuffer_overlapped)); if (!evo) return NULL; TAILQ_INIT(&evo->buffer.callbacks); evo->buffer.refcnt = 1; evo->buffer.last_with_datap = &evo->buffer.first; evo->buffer.is_overlapped = 1; evo->fd = fd; return &evo->buffer; } int evbuffer_launch_write(struct evbuffer *buf, ev_ssize_t at_most, struct event_overlapped *ol) { struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf); int r = -1; int i; struct evbuffer_chain *chain; DWORD bytesSent; if (!buf) { /* No buffer, or it isn't overlapped */ return -1; } EVBUFFER_LOCK(buf); EVUTIL_ASSERT(!buf_o->read_in_progress); if (buf->freeze_start || buf_o->write_in_progress) goto done; if (!buf->total_len) { /* Nothing to write */ r = 0; goto done; } else if (at_most < 0 || (size_t)at_most > buf->total_len) { at_most = buf->total_len; } evbuffer_freeze(buf, 1); buf_o->first_pinned = NULL; buf_o->n_buffers = 0; memset(buf_o->buffers, 0, sizeof(buf_o->buffers)); chain = buf_o->first_pinned = buf->first; for (i=0; i < MAX_WSABUFS && chain; ++i, chain=chain->next) { WSABUF *b = &buf_o->buffers[i]; b->buf = (char*)( chain->buffer + chain->misalign ); _evbuffer_chain_pin(chain, EVBUFFER_MEM_PINNED_W); if ((size_t)at_most > chain->off) { /* XXXX Cast is safe for now, since win32 has no mmaped chains. But later, we need to have this add more WSAbufs if chain->off is greater than ULONG_MAX */ b->len = (unsigned long)chain->off; at_most -= chain->off; } else { b->len = (unsigned long)at_most; ++i; break; } } buf_o->n_buffers = i; _evbuffer_incref(buf); if (WSASend(buf_o->fd, buf_o->buffers, i, &bytesSent, 0, &ol->overlapped, NULL)) { int error = WSAGetLastError(); if (error != WSA_IO_PENDING) { /* An actual error. */ pin_release(buf_o, EVBUFFER_MEM_PINNED_W); evbuffer_unfreeze(buf, 1); evbuffer_free(buf); /* decref */ goto done; } } buf_o->write_in_progress = 1; r = 0; done: EVBUFFER_UNLOCK(buf); return r; } int evbuffer_launch_read(struct evbuffer *buf, size_t at_most, struct event_overlapped *ol) { struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf); int r = -1, i; int nvecs; int npin=0; struct evbuffer_chain *chain=NULL, **chainp; DWORD bytesRead; DWORD flags = 0; struct evbuffer_iovec vecs[MAX_WSABUFS]; if (!buf_o) return -1; EVBUFFER_LOCK(buf); EVUTIL_ASSERT(!buf_o->write_in_progress); if (buf->freeze_end || buf_o->read_in_progress) goto done; buf_o->first_pinned = NULL; buf_o->n_buffers = 0; memset(buf_o->buffers, 0, sizeof(buf_o->buffers)); if (_evbuffer_expand_fast(buf, at_most, MAX_WSABUFS) == -1) goto done; evbuffer_freeze(buf, 0); nvecs = _evbuffer_read_setup_vecs(buf, at_most, vecs, MAX_WSABUFS, &chainp, 1); for (i=0;ibuffers[i], &vecs[i]); } buf_o->n_buffers = nvecs; buf_o->first_pinned = chain = *chainp; npin=0; for ( ; chain; chain = chain->next) { _evbuffer_chain_pin(chain, EVBUFFER_MEM_PINNED_R); ++npin; } EVUTIL_ASSERT(npin == nvecs); _evbuffer_incref(buf); if (WSARecv(buf_o->fd, buf_o->buffers, nvecs, &bytesRead, &flags, &ol->overlapped, NULL)) { int error = WSAGetLastError(); if (error != WSA_IO_PENDING) { /* An actual error. */ pin_release(buf_o, EVBUFFER_MEM_PINNED_R); evbuffer_unfreeze(buf, 0); evbuffer_free(buf); /* decref */ goto done; } } buf_o->read_in_progress = 1; r = 0; done: EVBUFFER_UNLOCK(buf); return r; } evutil_socket_t _evbuffer_overlapped_get_fd(struct evbuffer *buf) { struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf); return buf_o ? buf_o->fd : -1; } void _evbuffer_overlapped_set_fd(struct evbuffer *buf, evutil_socket_t fd) { struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf); EVBUFFER_LOCK(buf); /* XXX is this right?, should it cancel current I/O operations? */ if (buf_o) buf_o->fd = fd; EVBUFFER_UNLOCK(buf); } dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent-internal.h000644 000765 000024 00000036671 13037731714 024644 0ustar00jstaff000000 000000 /* * Copyright (c) 2008-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _BUFFEREVENT_INTERNAL_H_ #define _BUFFEREVENT_INTERNAL_H_ #ifdef __cplusplus extern "C" { #endif #include "event2/event-config.h" #include "event2/util.h" #include "defer-internal.h" #include "evthread-internal.h" #include "event2/thread.h" #include "ratelim-internal.h" #include "event2/bufferevent_struct.h" /* These flags are reasons that we might be declining to actually enable reading or writing on a bufferevent. */ /* On a all bufferevents, for reading: used when we have read up to the watermark value. On a filtering bufferevent, for writing: used when the underlying bufferevent's write buffer has been filled up to its watermark value. */ #define BEV_SUSPEND_WM 0x01 /* On a base bufferevent: when we have emptied a bandwidth buckets */ #define BEV_SUSPEND_BW 0x02 /* On a base bufferevent: when we have emptied the group's bandwidth bucket. */ #define BEV_SUSPEND_BW_GROUP 0x04 /* On a socket bufferevent: can't do any operations while we're waiting for * name lookup to finish. */ #define BEV_SUSPEND_LOOKUP 0x08 /* On a base bufferevent, for reading: used when a filter has choked this * (underlying) bufferevent because it has stopped reading from it. */ #define BEV_SUSPEND_FILT_READ 0x10 typedef ev_uint16_t bufferevent_suspend_flags; struct bufferevent_rate_limit_group { /** List of all members in the group */ TAILQ_HEAD(rlim_group_member_list, bufferevent_private) members; /** Current limits for the group. */ struct ev_token_bucket rate_limit; struct ev_token_bucket_cfg rate_limit_cfg; /** True iff we don't want to read from any member of the group.until * the token bucket refills. */ unsigned read_suspended : 1; /** True iff we don't want to write from any member of the group.until * the token bucket refills. */ unsigned write_suspended : 1; /** True iff we were unable to suspend one of the bufferevents in the * group for reading the last time we tried, and we should try * again. */ unsigned pending_unsuspend_read : 1; /** True iff we were unable to suspend one of the bufferevents in the * group for writing the last time we tried, and we should try * again. */ unsigned pending_unsuspend_write : 1; /*@{*/ /** Total number of bytes read or written in this group since last * reset. */ ev_uint64_t total_read; ev_uint64_t total_written; /*@}*/ /** The number of bufferevents in the group. */ int n_members; /** The smallest number of bytes that any member of the group should * be limited to read or write at a time. */ ev_ssize_t min_share; ev_ssize_t configured_min_share; /** Timeout event that goes off once a tick, when the bucket is ready * to refill. */ struct event master_refill_event; /** Lock to protect the members of this group. This lock should nest * within every bufferevent lock: if you are holding this lock, do * not assume you can lock another bufferevent. */ void *lock; }; /** Fields for rate-limiting a single bufferevent. */ struct bufferevent_rate_limit { /* Linked-list elements for storing this bufferevent_private in a * group. * * Note that this field is supposed to be protected by the group * lock */ TAILQ_ENTRY(bufferevent_private) next_in_group; /** The rate-limiting group for this bufferevent, or NULL if it is * only rate-limited on its own. */ struct bufferevent_rate_limit_group *group; /* This bufferevent's current limits. */ struct ev_token_bucket limit; /* Pointer to the rate-limit configuration for this bufferevent. * Can be shared. XXX reference-count this? */ struct ev_token_bucket_cfg *cfg; /* Timeout event used when one this bufferevent's buckets are * empty. */ struct event refill_bucket_event; }; /** Parts of the bufferevent structure that are shared among all bufferevent * types, but not exposed in bufferevent_struct.h. */ struct bufferevent_private { /** The underlying bufferevent structure. */ struct bufferevent bev; /** Evbuffer callback to enforce watermarks on input. */ struct evbuffer_cb_entry *read_watermarks_cb; /** If set, we should free the lock when we free the bufferevent. */ unsigned own_lock : 1; /** Flag: set if we have deferred callbacks and a read callback is * pending. */ unsigned readcb_pending : 1; /** Flag: set if we have deferred callbacks and a write callback is * pending. */ unsigned writecb_pending : 1; /** Flag: set if we are currently busy connecting. */ unsigned connecting : 1; /** Flag: set if a connect failed prematurely; this is a hack for * getting around the bufferevent abstraction. */ unsigned connection_refused : 1; /** Set to the events pending if we have deferred callbacks and * an events callback is pending. */ short eventcb_pending; /** If set, read is suspended until one or more conditions are over. * The actual value here is a bitfield of those conditions; see the * BEV_SUSPEND_* flags above. */ bufferevent_suspend_flags read_suspended; /** If set, writing is suspended until one or more conditions are over. * The actual value here is a bitfield of those conditions; see the * BEV_SUSPEND_* flags above. */ bufferevent_suspend_flags write_suspended; /** Set to the current socket errno if we have deferred callbacks and * an events callback is pending. */ int errno_pending; /** The DNS error code for bufferevent_socket_connect_hostname */ int dns_error; /** Used to implement deferred callbacks */ struct deferred_cb deferred; /** The options this bufferevent was constructed with */ enum bufferevent_options options; /** Current reference count for this bufferevent. */ int refcnt; /** Lock for this bufferevent. Shared by the inbuf and the outbuf. * If NULL, locking is disabled. */ void *lock; /** Rate-limiting information for this bufferevent */ struct bufferevent_rate_limit *rate_limiting; }; /** Possible operations for a control callback. */ enum bufferevent_ctrl_op { BEV_CTRL_SET_FD, BEV_CTRL_GET_FD, BEV_CTRL_GET_UNDERLYING, BEV_CTRL_CANCEL_ALL }; /** Possible data types for a control callback */ union bufferevent_ctrl_data { void *ptr; evutil_socket_t fd; }; /** Implementation table for a bufferevent: holds function pointers and other information to make the various bufferevent types work. */ struct bufferevent_ops { /** The name of the bufferevent's type. */ const char *type; /** At what offset into the implementation type will we find a bufferevent structure? Example: if the type is implemented as struct bufferevent_x { int extra_data; struct bufferevent bev; } then mem_offset should be offsetof(struct bufferevent_x, bev) */ off_t mem_offset; /** Enables one or more of EV_READ|EV_WRITE on a bufferevent. Does not need to adjust the 'enabled' field. Returns 0 on success, -1 on failure. */ int (*enable)(struct bufferevent *, short); /** Disables one or more of EV_READ|EV_WRITE on a bufferevent. Does not need to adjust the 'enabled' field. Returns 0 on success, -1 on failure. */ int (*disable)(struct bufferevent *, short); /** Free any storage and deallocate any extra data or structures used in this implementation. */ void (*destruct)(struct bufferevent *); /** Called when the timeouts on the bufferevent have changed.*/ int (*adj_timeouts)(struct bufferevent *); /** Called to flush data. */ int (*flush)(struct bufferevent *, short, enum bufferevent_flush_mode); /** Called to access miscellaneous fields. */ int (*ctrl)(struct bufferevent *, enum bufferevent_ctrl_op, union bufferevent_ctrl_data *); }; extern const struct bufferevent_ops bufferevent_ops_socket; extern const struct bufferevent_ops bufferevent_ops_filter; extern const struct bufferevent_ops bufferevent_ops_pair; #define BEV_IS_SOCKET(bevp) ((bevp)->be_ops == &bufferevent_ops_socket) #define BEV_IS_FILTER(bevp) ((bevp)->be_ops == &bufferevent_ops_filter) #define BEV_IS_PAIR(bevp) ((bevp)->be_ops == &bufferevent_ops_pair) #ifdef WIN32 extern const struct bufferevent_ops bufferevent_ops_async; #define BEV_IS_ASYNC(bevp) ((bevp)->be_ops == &bufferevent_ops_async) #else #define BEV_IS_ASYNC(bevp) 0 #endif /** Initialize the shared parts of a bufferevent. */ int bufferevent_init_common(struct bufferevent_private *, struct event_base *, const struct bufferevent_ops *, enum bufferevent_options options); /** For internal use: temporarily stop all reads on bufev, until the conditions * in 'what' are over. */ void bufferevent_suspend_read(struct bufferevent *bufev, bufferevent_suspend_flags what); /** For internal use: clear the conditions 'what' on bufev, and re-enable * reading if there are no conditions left. */ void bufferevent_unsuspend_read(struct bufferevent *bufev, bufferevent_suspend_flags what); /** For internal use: temporarily stop all writes on bufev, until the conditions * in 'what' are over. */ void bufferevent_suspend_write(struct bufferevent *bufev, bufferevent_suspend_flags what); /** For internal use: clear the conditions 'what' on bufev, and re-enable * writing if there are no conditions left. */ void bufferevent_unsuspend_write(struct bufferevent *bufev, bufferevent_suspend_flags what); #define bufferevent_wm_suspend_read(b) \ bufferevent_suspend_read((b), BEV_SUSPEND_WM) #define bufferevent_wm_unsuspend_read(b) \ bufferevent_unsuspend_read((b), BEV_SUSPEND_WM) /* Disable a bufferevent. Equivalent to bufferevent_disable(), but first resets 'connecting' flag to force EV_WRITE down for sure. XXXX this method will go away in the future; try not to add new users. See comment in evhttp_connection_reset() for discussion. @param bufev the bufferevent to be disabled @param event any combination of EV_READ | EV_WRITE. @return 0 if successful, or -1 if an error occurred @see bufferevent_disable() */ int bufferevent_disable_hard(struct bufferevent *bufev, short event); /** Internal: Set up locking on a bufferevent. If lock is set, use it. * Otherwise, use a new lock. */ int bufferevent_enable_locking(struct bufferevent *bufev, void *lock); /** Internal: Increment the reference count on bufev. */ void bufferevent_incref(struct bufferevent *bufev); /** Internal: Lock bufev and increase its reference count. * unlocking it otherwise. */ void _bufferevent_incref_and_lock(struct bufferevent *bufev); /** Internal: Decrement the reference count on bufev. Returns 1 if it freed * the bufferevent.*/ int bufferevent_decref(struct bufferevent *bufev); /** Internal: Drop the reference count on bufev, freeing as necessary, and * unlocking it otherwise. Returns 1 if it freed the bufferevent. */ int _bufferevent_decref_and_unlock(struct bufferevent *bufev); /** Internal: If callbacks are deferred and we have a read callback, schedule * a readcb. Otherwise just run the readcb. */ void _bufferevent_run_readcb(struct bufferevent *bufev); /** Internal: If callbacks are deferred and we have a write callback, schedule * a writecb. Otherwise just run the writecb. */ void _bufferevent_run_writecb(struct bufferevent *bufev); /** Internal: If callbacks are deferred and we have an eventcb, schedule * it to run with events "what". Otherwise just run the eventcb. */ void _bufferevent_run_eventcb(struct bufferevent *bufev, short what); /** Internal: Add the event 'ev' with timeout tv, unless tv is set to 0, in * which case add ev with no timeout. */ int _bufferevent_add_event(struct event *ev, const struct timeval *tv); /* ========= * These next functions implement timeouts for bufferevents that aren't doing * anything else with ev_read and ev_write, to handle timeouts. * ========= */ /** Internal use: Set up the ev_read and ev_write callbacks so that * the other "generic_timeout" functions will work on it. Call this from * the constructor function. */ void _bufferevent_init_generic_timeout_cbs(struct bufferevent *bev); /** Internal use: Delete the ev_read and ev_write callbacks if they're pending. * Call this from the destructor function. */ int _bufferevent_del_generic_timeout_cbs(struct bufferevent *bev); /** Internal use: Add or delete the generic timeout events as appropriate. * (If an event is enabled and a timeout is set, we add the event. Otherwise * we delete it.) Call this from anything that changes the timeout values, * that enabled EV_READ or EV_WRITE, or that disables EV_READ or EV_WRITE. */ int _bufferevent_generic_adj_timeouts(struct bufferevent *bev); /** Internal use: We have just successfully read data into an inbuf, so * reset the read timeout (if any). */ #define BEV_RESET_GENERIC_READ_TIMEOUT(bev) \ do { \ if (evutil_timerisset(&(bev)->timeout_read)) \ event_add(&(bev)->ev_read, &(bev)->timeout_read); \ } while (0) /** Internal use: We have just successfully written data from an inbuf, so * reset the read timeout (if any). */ #define BEV_RESET_GENERIC_WRITE_TIMEOUT(bev) \ do { \ if (evutil_timerisset(&(bev)->timeout_write)) \ event_add(&(bev)->ev_write, &(bev)->timeout_write); \ } while (0) #define BEV_DEL_GENERIC_READ_TIMEOUT(bev) \ event_del(&(bev)->ev_read) #define BEV_DEL_GENERIC_WRITE_TIMEOUT(bev) \ event_del(&(bev)->ev_write) /** Internal: Given a bufferevent, return its corresponding * bufferevent_private. */ #define BEV_UPCAST(b) EVUTIL_UPCAST((b), struct bufferevent_private, bev) #ifdef _EVENT_DISABLE_THREAD_SUPPORT #define BEV_LOCK(b) _EVUTIL_NIL_STMT #define BEV_UNLOCK(b) _EVUTIL_NIL_STMT #else /** Internal: Grab the lock (if any) on a bufferevent */ #define BEV_LOCK(b) do { \ struct bufferevent_private *locking = BEV_UPCAST(b); \ EVLOCK_LOCK(locking->lock, 0); \ } while (0) /** Internal: Release the lock (if any) on a bufferevent */ #define BEV_UNLOCK(b) do { \ struct bufferevent_private *locking = BEV_UPCAST(b); \ EVLOCK_UNLOCK(locking->lock, 0); \ } while (0) #endif /* ==== For rate-limiting. */ int _bufferevent_decrement_write_buckets(struct bufferevent_private *bev, ev_ssize_t bytes); int _bufferevent_decrement_read_buckets(struct bufferevent_private *bev, ev_ssize_t bytes); ev_ssize_t _bufferevent_get_read_max(struct bufferevent_private *bev); ev_ssize_t _bufferevent_get_write_max(struct bufferevent_private *bev); #ifdef __cplusplus } #endif #endif /* _BUFFEREVENT_INTERNAL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent.c000644 000765 000024 00000054024 13037731714 023015 0ustar00jstaff000000 000000 /* * Copyright (c) 2002-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos, Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include "event2/event-config.h" #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_STDARG_H #include #endif #ifdef WIN32 #include #endif #include #include "event2/util.h" #include "event2/buffer.h" #include "event2/buffer_compat.h" #include "event2/bufferevent.h" #include "event2/bufferevent_struct.h" #include "event2/bufferevent_compat.h" #include "event2/event.h" #include "log-internal.h" #include "mm-internal.h" #include "bufferevent-internal.h" #include "evbuffer-internal.h" #include "util-internal.h" static void _bufferevent_cancel_all(struct bufferevent *bev); void bufferevent_suspend_read(struct bufferevent *bufev, bufferevent_suspend_flags what) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); BEV_LOCK(bufev); if (!bufev_private->read_suspended) bufev->be_ops->disable(bufev, EV_READ); bufev_private->read_suspended |= what; BEV_UNLOCK(bufev); } void bufferevent_unsuspend_read(struct bufferevent *bufev, bufferevent_suspend_flags what) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); BEV_LOCK(bufev); bufev_private->read_suspended &= ~what; if (!bufev_private->read_suspended && (bufev->enabled & EV_READ)) bufev->be_ops->enable(bufev, EV_READ); BEV_UNLOCK(bufev); } void bufferevent_suspend_write(struct bufferevent *bufev, bufferevent_suspend_flags what) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); BEV_LOCK(bufev); if (!bufev_private->write_suspended) bufev->be_ops->disable(bufev, EV_WRITE); bufev_private->write_suspended |= what; BEV_UNLOCK(bufev); } void bufferevent_unsuspend_write(struct bufferevent *bufev, bufferevent_suspend_flags what) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); BEV_LOCK(bufev); bufev_private->write_suspended &= ~what; if (!bufev_private->write_suspended && (bufev->enabled & EV_WRITE)) bufev->be_ops->enable(bufev, EV_WRITE); BEV_UNLOCK(bufev); } /* Callback to implement watermarks on the input buffer. Only enabled * if the watermark is set. */ static void bufferevent_inbuf_wm_cb(struct evbuffer *buf, const struct evbuffer_cb_info *cbinfo, void *arg) { struct bufferevent *bufev = arg; size_t size; size = evbuffer_get_length(buf); if (size >= bufev->wm_read.high) bufferevent_wm_suspend_read(bufev); else bufferevent_wm_unsuspend_read(bufev); } static void bufferevent_run_deferred_callbacks_locked(struct deferred_cb *_, void *arg) { struct bufferevent_private *bufev_private = arg; struct bufferevent *bufev = &bufev_private->bev; BEV_LOCK(bufev); if ((bufev_private->eventcb_pending & BEV_EVENT_CONNECTED) && bufev->errorcb) { /* The "connected" happened before any reads or writes, so send it first. */ bufev_private->eventcb_pending &= ~BEV_EVENT_CONNECTED; bufev->errorcb(bufev, BEV_EVENT_CONNECTED, bufev->cbarg); } if (bufev_private->readcb_pending && bufev->readcb) { bufev_private->readcb_pending = 0; bufev->readcb(bufev, bufev->cbarg); } if (bufev_private->writecb_pending && bufev->writecb) { bufev_private->writecb_pending = 0; bufev->writecb(bufev, bufev->cbarg); } if (bufev_private->eventcb_pending && bufev->errorcb) { short what = bufev_private->eventcb_pending; int err = bufev_private->errno_pending; bufev_private->eventcb_pending = 0; bufev_private->errno_pending = 0; EVUTIL_SET_SOCKET_ERROR(err); bufev->errorcb(bufev, what, bufev->cbarg); } _bufferevent_decref_and_unlock(bufev); } static void bufferevent_run_deferred_callbacks_unlocked(struct deferred_cb *_, void *arg) { struct bufferevent_private *bufev_private = arg; struct bufferevent *bufev = &bufev_private->bev; BEV_LOCK(bufev); #define UNLOCKED(stmt) \ do { BEV_UNLOCK(bufev); stmt; BEV_LOCK(bufev); } while(0) if ((bufev_private->eventcb_pending & BEV_EVENT_CONNECTED) && bufev->errorcb) { /* The "connected" happened before any reads or writes, so send it first. */ bufferevent_event_cb errorcb = bufev->errorcb; void *cbarg = bufev->cbarg; bufev_private->eventcb_pending &= ~BEV_EVENT_CONNECTED; UNLOCKED(errorcb(bufev, BEV_EVENT_CONNECTED, cbarg)); } if (bufev_private->readcb_pending && bufev->readcb) { bufferevent_data_cb readcb = bufev->readcb; void *cbarg = bufev->cbarg; bufev_private->readcb_pending = 0; UNLOCKED(readcb(bufev, cbarg)); } if (bufev_private->writecb_pending && bufev->writecb) { bufferevent_data_cb writecb = bufev->writecb; void *cbarg = bufev->cbarg; bufev_private->writecb_pending = 0; UNLOCKED(writecb(bufev, cbarg)); } if (bufev_private->eventcb_pending && bufev->errorcb) { bufferevent_event_cb errorcb = bufev->errorcb; void *cbarg = bufev->cbarg; short what = bufev_private->eventcb_pending; int err = bufev_private->errno_pending; bufev_private->eventcb_pending = 0; bufev_private->errno_pending = 0; EVUTIL_SET_SOCKET_ERROR(err); UNLOCKED(errorcb(bufev,what,cbarg)); } _bufferevent_decref_and_unlock(bufev); #undef UNLOCKED } #define SCHEDULE_DEFERRED(bevp) \ do { \ bufferevent_incref(&(bevp)->bev); \ event_deferred_cb_schedule( \ event_base_get_deferred_cb_queue((bevp)->bev.ev_base), \ &(bevp)->deferred); \ } while (0) void _bufferevent_run_readcb(struct bufferevent *bufev) { /* Requires that we hold the lock and a reference */ struct bufferevent_private *p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); if (bufev->readcb == NULL) return; if (p->options & BEV_OPT_DEFER_CALLBACKS) { p->readcb_pending = 1; if (!p->deferred.queued) SCHEDULE_DEFERRED(p); } else { bufev->readcb(bufev, bufev->cbarg); } } void _bufferevent_run_writecb(struct bufferevent *bufev) { /* Requires that we hold the lock and a reference */ struct bufferevent_private *p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); if (bufev->writecb == NULL) return; if (p->options & BEV_OPT_DEFER_CALLBACKS) { p->writecb_pending = 1; if (!p->deferred.queued) SCHEDULE_DEFERRED(p); } else { bufev->writecb(bufev, bufev->cbarg); } } void _bufferevent_run_eventcb(struct bufferevent *bufev, short what) { /* Requires that we hold the lock and a reference */ struct bufferevent_private *p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); if (bufev->errorcb == NULL) return; if (p->options & BEV_OPT_DEFER_CALLBACKS) { p->eventcb_pending |= what; p->errno_pending = EVUTIL_SOCKET_ERROR(); if (!p->deferred.queued) SCHEDULE_DEFERRED(p); } else { bufev->errorcb(bufev, what, bufev->cbarg); } } int bufferevent_init_common(struct bufferevent_private *bufev_private, struct event_base *base, const struct bufferevent_ops *ops, enum bufferevent_options options) { struct bufferevent *bufev = &bufev_private->bev; if (!bufev->input) { if ((bufev->input = evbuffer_new()) == NULL) return -1; } if (!bufev->output) { if ((bufev->output = evbuffer_new()) == NULL) { evbuffer_free(bufev->input); return -1; } } bufev_private->refcnt = 1; bufev->ev_base = base; /* Disable timeouts. */ evutil_timerclear(&bufev->timeout_read); evutil_timerclear(&bufev->timeout_write); bufev->be_ops = ops; /* * Set to EV_WRITE so that using bufferevent_write is going to * trigger a callback. Reading needs to be explicitly enabled * because otherwise no data will be available. */ bufev->enabled = EV_WRITE; #ifndef _EVENT_DISABLE_THREAD_SUPPORT if (options & BEV_OPT_THREADSAFE) { if (bufferevent_enable_locking(bufev, NULL) < 0) { /* cleanup */ evbuffer_free(bufev->input); evbuffer_free(bufev->output); bufev->input = NULL; bufev->output = NULL; return -1; } } #endif if ((options & (BEV_OPT_DEFER_CALLBACKS|BEV_OPT_UNLOCK_CALLBACKS)) == BEV_OPT_UNLOCK_CALLBACKS) { event_warnx("UNLOCK_CALLBACKS requires DEFER_CALLBACKS"); return -1; } if (options & BEV_OPT_DEFER_CALLBACKS) { if (options & BEV_OPT_UNLOCK_CALLBACKS) event_deferred_cb_init(&bufev_private->deferred, bufferevent_run_deferred_callbacks_unlocked, bufev_private); else event_deferred_cb_init(&bufev_private->deferred, bufferevent_run_deferred_callbacks_locked, bufev_private); } bufev_private->options = options; evbuffer_set_parent(bufev->input, bufev); evbuffer_set_parent(bufev->output, bufev); return 0; } void bufferevent_setcb(struct bufferevent *bufev, bufferevent_data_cb readcb, bufferevent_data_cb writecb, bufferevent_event_cb eventcb, void *cbarg) { BEV_LOCK(bufev); bufev->readcb = readcb; bufev->writecb = writecb; bufev->errorcb = eventcb; bufev->cbarg = cbarg; BEV_UNLOCK(bufev); } struct evbuffer * bufferevent_get_input(struct bufferevent *bufev) { return bufev->input; } struct evbuffer * bufferevent_get_output(struct bufferevent *bufev) { return bufev->output; } struct event_base * bufferevent_get_base(struct bufferevent *bufev) { return bufev->ev_base; } int bufferevent_write(struct bufferevent *bufev, const void *data, size_t size) { if (evbuffer_add(bufev->output, data, size) == -1) return (-1); return 0; } int bufferevent_write_buffer(struct bufferevent *bufev, struct evbuffer *buf) { if (evbuffer_add_buffer(bufev->output, buf) == -1) return (-1); return 0; } size_t bufferevent_read(struct bufferevent *bufev, void *data, size_t size) { return (evbuffer_remove(bufev->input, data, size)); } int bufferevent_read_buffer(struct bufferevent *bufev, struct evbuffer *buf) { return (evbuffer_add_buffer(buf, bufev->input)); } int bufferevent_enable(struct bufferevent *bufev, short event) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); short impl_events = event; int r = 0; _bufferevent_incref_and_lock(bufev); if (bufev_private->read_suspended) impl_events &= ~EV_READ; if (bufev_private->write_suspended) impl_events &= ~EV_WRITE; bufev->enabled |= event; if (impl_events && bufev->be_ops->enable(bufev, impl_events) < 0) r = -1; _bufferevent_decref_and_unlock(bufev); return r; } int bufferevent_set_timeouts(struct bufferevent *bufev, const struct timeval *tv_read, const struct timeval *tv_write) { int r = 0; BEV_LOCK(bufev); if (tv_read) { bufev->timeout_read = *tv_read; } else { evutil_timerclear(&bufev->timeout_read); } if (tv_write) { bufev->timeout_write = *tv_write; } else { evutil_timerclear(&bufev->timeout_write); } if (bufev->be_ops->adj_timeouts) r = bufev->be_ops->adj_timeouts(bufev); BEV_UNLOCK(bufev); return r; } /* Obsolete; use bufferevent_set_timeouts */ void bufferevent_settimeout(struct bufferevent *bufev, int timeout_read, int timeout_write) { struct timeval tv_read, tv_write; struct timeval *ptv_read = NULL, *ptv_write = NULL; memset(&tv_read, 0, sizeof(tv_read)); memset(&tv_write, 0, sizeof(tv_write)); if (timeout_read) { tv_read.tv_sec = timeout_read; ptv_read = &tv_read; } if (timeout_write) { tv_write.tv_sec = timeout_write; ptv_write = &tv_write; } bufferevent_set_timeouts(bufev, ptv_read, ptv_write); } int bufferevent_disable_hard(struct bufferevent *bufev, short event) { int r = 0; struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); BEV_LOCK(bufev); bufev->enabled &= ~event; bufev_private->connecting = 0; if (bufev->be_ops->disable(bufev, event) < 0) r = -1; BEV_UNLOCK(bufev); return r; } int bufferevent_disable(struct bufferevent *bufev, short event) { int r = 0; BEV_LOCK(bufev); bufev->enabled &= ~event; if (bufev->be_ops->disable(bufev, event) < 0) r = -1; BEV_UNLOCK(bufev); return r; } /* * Sets the water marks */ void bufferevent_setwatermark(struct bufferevent *bufev, short events, size_t lowmark, size_t highmark) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); BEV_LOCK(bufev); if (events & EV_WRITE) { bufev->wm_write.low = lowmark; bufev->wm_write.high = highmark; } if (events & EV_READ) { bufev->wm_read.low = lowmark; bufev->wm_read.high = highmark; if (highmark) { /* There is now a new high-water mark for read. enable the callback if needed, and see if we should suspend/bufferevent_wm_unsuspend. */ if (bufev_private->read_watermarks_cb == NULL) { bufev_private->read_watermarks_cb = evbuffer_add_cb(bufev->input, bufferevent_inbuf_wm_cb, bufev); } evbuffer_cb_set_flags(bufev->input, bufev_private->read_watermarks_cb, EVBUFFER_CB_ENABLED|EVBUFFER_CB_NODEFER); if (evbuffer_get_length(bufev->input) >= highmark) bufferevent_wm_suspend_read(bufev); else if (evbuffer_get_length(bufev->input) < highmark) bufferevent_wm_unsuspend_read(bufev); } else { /* There is now no high-water mark for read. */ if (bufev_private->read_watermarks_cb) evbuffer_cb_clear_flags(bufev->input, bufev_private->read_watermarks_cb, EVBUFFER_CB_ENABLED); bufferevent_wm_unsuspend_read(bufev); } } BEV_UNLOCK(bufev); } int bufferevent_flush(struct bufferevent *bufev, short iotype, enum bufferevent_flush_mode mode) { int r = -1; BEV_LOCK(bufev); if (bufev->be_ops->flush) r = bufev->be_ops->flush(bufev, iotype, mode); BEV_UNLOCK(bufev); return r; } void _bufferevent_incref_and_lock(struct bufferevent *bufev) { struct bufferevent_private *bufev_private = BEV_UPCAST(bufev); BEV_LOCK(bufev); ++bufev_private->refcnt; } #if 0 static void _bufferevent_transfer_lock_ownership(struct bufferevent *donor, struct bufferevent *recipient) { struct bufferevent_private *d = BEV_UPCAST(donor); struct bufferevent_private *r = BEV_UPCAST(recipient); if (d->lock != r->lock) return; if (r->own_lock) return; if (d->own_lock) { d->own_lock = 0; r->own_lock = 1; } } #endif int _bufferevent_decref_and_unlock(struct bufferevent *bufev) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); struct bufferevent *underlying; EVUTIL_ASSERT(bufev_private->refcnt > 0); if (--bufev_private->refcnt) { BEV_UNLOCK(bufev); return 0; } underlying = bufferevent_get_underlying(bufev); /* Clean up the shared info */ if (bufev->be_ops->destruct) bufev->be_ops->destruct(bufev); /* XXX what happens if refcnt for these buffers is > 1? * The buffers can share a lock with this bufferevent object, * but the lock might be destroyed below. */ /* evbuffer will free the callbacks */ evbuffer_free(bufev->input); evbuffer_free(bufev->output); if (bufev_private->rate_limiting) { if (bufev_private->rate_limiting->group) bufferevent_remove_from_rate_limit_group_internal(bufev,0); if (event_initialized(&bufev_private->rate_limiting->refill_bucket_event)) event_del(&bufev_private->rate_limiting->refill_bucket_event); event_debug_unassign(&bufev_private->rate_limiting->refill_bucket_event); mm_free(bufev_private->rate_limiting); bufev_private->rate_limiting = NULL; } event_debug_unassign(&bufev->ev_read); event_debug_unassign(&bufev->ev_write); BEV_UNLOCK(bufev); if (bufev_private->own_lock) EVTHREAD_FREE_LOCK(bufev_private->lock, EVTHREAD_LOCKTYPE_RECURSIVE); /* Free the actual allocated memory. */ mm_free(((char*)bufev) - bufev->be_ops->mem_offset); /* Release the reference to underlying now that we no longer need the * reference to it. We wait this long mainly in case our lock is * shared with underlying. * * The 'destruct' function will also drop a reference to underlying * if BEV_OPT_CLOSE_ON_FREE is set. * * XXX Should we/can we just refcount evbuffer/bufferevent locks? * It would probably save us some headaches. */ if (underlying) bufferevent_decref(underlying); return 1; } int bufferevent_decref(struct bufferevent *bufev) { BEV_LOCK(bufev); return _bufferevent_decref_and_unlock(bufev); } void bufferevent_free(struct bufferevent *bufev) { BEV_LOCK(bufev); bufferevent_setcb(bufev, NULL, NULL, NULL, NULL); _bufferevent_cancel_all(bufev); _bufferevent_decref_and_unlock(bufev); } void bufferevent_incref(struct bufferevent *bufev) { struct bufferevent_private *bufev_private = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); BEV_LOCK(bufev); ++bufev_private->refcnt; BEV_UNLOCK(bufev); } int bufferevent_enable_locking(struct bufferevent *bufev, void *lock) { #ifdef _EVENT_DISABLE_THREAD_SUPPORT return -1; #else struct bufferevent *underlying; if (BEV_UPCAST(bufev)->lock) return -1; underlying = bufferevent_get_underlying(bufev); if (!lock && underlying && BEV_UPCAST(underlying)->lock) { lock = BEV_UPCAST(underlying)->lock; BEV_UPCAST(bufev)->lock = lock; BEV_UPCAST(bufev)->own_lock = 0; } else if (!lock) { EVTHREAD_ALLOC_LOCK(lock, EVTHREAD_LOCKTYPE_RECURSIVE); if (!lock) return -1; BEV_UPCAST(bufev)->lock = lock; BEV_UPCAST(bufev)->own_lock = 1; } else { BEV_UPCAST(bufev)->lock = lock; BEV_UPCAST(bufev)->own_lock = 0; } evbuffer_enable_locking(bufev->input, lock); evbuffer_enable_locking(bufev->output, lock); if (underlying && !BEV_UPCAST(underlying)->lock) bufferevent_enable_locking(underlying, lock); return 0; #endif } int bufferevent_setfd(struct bufferevent *bev, evutil_socket_t fd) { union bufferevent_ctrl_data d; int res = -1; d.fd = fd; BEV_LOCK(bev); if (bev->be_ops->ctrl) res = bev->be_ops->ctrl(bev, BEV_CTRL_SET_FD, &d); BEV_UNLOCK(bev); return res; } evutil_socket_t bufferevent_getfd(struct bufferevent *bev) { union bufferevent_ctrl_data d; int res = -1; d.fd = -1; BEV_LOCK(bev); if (bev->be_ops->ctrl) res = bev->be_ops->ctrl(bev, BEV_CTRL_GET_FD, &d); BEV_UNLOCK(bev); return (res<0) ? -1 : d.fd; } static void _bufferevent_cancel_all(struct bufferevent *bev) { union bufferevent_ctrl_data d; memset(&d, 0, sizeof(d)); BEV_LOCK(bev); if (bev->be_ops->ctrl) bev->be_ops->ctrl(bev, BEV_CTRL_CANCEL_ALL, &d); BEV_UNLOCK(bev); } short bufferevent_get_enabled(struct bufferevent *bufev) { short r; BEV_LOCK(bufev); r = bufev->enabled; BEV_UNLOCK(bufev); return r; } struct bufferevent * bufferevent_get_underlying(struct bufferevent *bev) { union bufferevent_ctrl_data d; int res = -1; d.ptr = NULL; BEV_LOCK(bev); if (bev->be_ops->ctrl) res = bev->be_ops->ctrl(bev, BEV_CTRL_GET_UNDERLYING, &d); BEV_UNLOCK(bev); return (res<0) ? NULL : d.ptr; } static void bufferevent_generic_read_timeout_cb(evutil_socket_t fd, short event, void *ctx) { struct bufferevent *bev = ctx; _bufferevent_incref_and_lock(bev); bufferevent_disable(bev, EV_READ); _bufferevent_run_eventcb(bev, BEV_EVENT_TIMEOUT|BEV_EVENT_READING); _bufferevent_decref_and_unlock(bev); } static void bufferevent_generic_write_timeout_cb(evutil_socket_t fd, short event, void *ctx) { struct bufferevent *bev = ctx; _bufferevent_incref_and_lock(bev); bufferevent_disable(bev, EV_WRITE); _bufferevent_run_eventcb(bev, BEV_EVENT_TIMEOUT|BEV_EVENT_WRITING); _bufferevent_decref_and_unlock(bev); } void _bufferevent_init_generic_timeout_cbs(struct bufferevent *bev) { evtimer_assign(&bev->ev_read, bev->ev_base, bufferevent_generic_read_timeout_cb, bev); evtimer_assign(&bev->ev_write, bev->ev_base, bufferevent_generic_write_timeout_cb, bev); } int _bufferevent_del_generic_timeout_cbs(struct bufferevent *bev) { int r1,r2; r1 = event_del(&bev->ev_read); r2 = event_del(&bev->ev_write); if (r1<0 || r2<0) return -1; return 0; } int _bufferevent_generic_adj_timeouts(struct bufferevent *bev) { const short enabled = bev->enabled; struct bufferevent_private *bev_p = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); int r1=0, r2=0; if ((enabled & EV_READ) && !bev_p->read_suspended && evutil_timerisset(&bev->timeout_read)) r1 = event_add(&bev->ev_read, &bev->timeout_read); else r1 = event_del(&bev->ev_read); if ((enabled & EV_WRITE) && !bev_p->write_suspended && evutil_timerisset(&bev->timeout_write) && evbuffer_get_length(bev->output)) r2 = event_add(&bev->ev_write, &bev->timeout_write); else r2 = event_del(&bev->ev_write); if (r1 < 0 || r2 < 0) return -1; return 0; } int _bufferevent_add_event(struct event *ev, const struct timeval *tv) { if (tv->tv_sec == 0 && tv->tv_usec == 0) return event_add(ev, NULL); else return event_add(ev, tv); } /* For use by user programs only; internally, we should be calling either _bufferevent_incref_and_lock(), or BEV_LOCK. */ void bufferevent_lock(struct bufferevent *bev) { _bufferevent_incref_and_lock(bev); } void bufferevent_unlock(struct bufferevent *bev) { _bufferevent_decref_and_unlock(bev); } dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent_async.c000644 000765 000024 00000043472 13037731714 024217 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_STDARG_H #include #endif #ifdef _EVENT_HAVE_UNISTD_H #include #endif #ifdef WIN32 #include #include #endif #include #include "event2/util.h" #include "event2/bufferevent.h" #include "event2/buffer.h" #include "event2/bufferevent_struct.h" #include "event2/event.h" #include "event2/util.h" #include "event-internal.h" #include "log-internal.h" #include "mm-internal.h" #include "bufferevent-internal.h" #include "util-internal.h" #include "iocp-internal.h" #ifndef SO_UPDATE_CONNECT_CONTEXT /* Mingw is sometimes missing this */ #define SO_UPDATE_CONNECT_CONTEXT 0x7010 #endif /* prototypes */ static int be_async_enable(struct bufferevent *, short); static int be_async_disable(struct bufferevent *, short); static void be_async_destruct(struct bufferevent *); static int be_async_flush(struct bufferevent *, short, enum bufferevent_flush_mode); static int be_async_ctrl(struct bufferevent *, enum bufferevent_ctrl_op, union bufferevent_ctrl_data *); struct bufferevent_async { struct bufferevent_private bev; struct event_overlapped connect_overlapped; struct event_overlapped read_overlapped; struct event_overlapped write_overlapped; size_t read_in_progress; size_t write_in_progress; unsigned ok : 1; unsigned read_added : 1; unsigned write_added : 1; }; const struct bufferevent_ops bufferevent_ops_async = { "socket_async", evutil_offsetof(struct bufferevent_async, bev.bev), be_async_enable, be_async_disable, be_async_destruct, _bufferevent_generic_adj_timeouts, be_async_flush, be_async_ctrl, }; static inline struct bufferevent_async * upcast(struct bufferevent *bev) { struct bufferevent_async *bev_a; if (bev->be_ops != &bufferevent_ops_async) return NULL; bev_a = EVUTIL_UPCAST(bev, struct bufferevent_async, bev.bev); return bev_a; } static inline struct bufferevent_async * upcast_connect(struct event_overlapped *eo) { struct bufferevent_async *bev_a; bev_a = EVUTIL_UPCAST(eo, struct bufferevent_async, connect_overlapped); EVUTIL_ASSERT(BEV_IS_ASYNC(&bev_a->bev.bev)); return bev_a; } static inline struct bufferevent_async * upcast_read(struct event_overlapped *eo) { struct bufferevent_async *bev_a; bev_a = EVUTIL_UPCAST(eo, struct bufferevent_async, read_overlapped); EVUTIL_ASSERT(BEV_IS_ASYNC(&bev_a->bev.bev)); return bev_a; } static inline struct bufferevent_async * upcast_write(struct event_overlapped *eo) { struct bufferevent_async *bev_a; bev_a = EVUTIL_UPCAST(eo, struct bufferevent_async, write_overlapped); EVUTIL_ASSERT(BEV_IS_ASYNC(&bev_a->bev.bev)); return bev_a; } static void bev_async_del_write(struct bufferevent_async *beva) { struct bufferevent *bev = &beva->bev.bev; if (beva->write_added) { beva->write_added = 0; event_base_del_virtual(bev->ev_base); } } static void bev_async_del_read(struct bufferevent_async *beva) { struct bufferevent *bev = &beva->bev.bev; if (beva->read_added) { beva->read_added = 0; event_base_del_virtual(bev->ev_base); } } static void bev_async_add_write(struct bufferevent_async *beva) { struct bufferevent *bev = &beva->bev.bev; if (!beva->write_added) { beva->write_added = 1; event_base_add_virtual(bev->ev_base); } } static void bev_async_add_read(struct bufferevent_async *beva) { struct bufferevent *bev = &beva->bev.bev; if (!beva->read_added) { beva->read_added = 1; event_base_add_virtual(bev->ev_base); } } static void bev_async_consider_writing(struct bufferevent_async *beva) { size_t at_most; int limit; struct bufferevent *bev = &beva->bev.bev; /* Don't write if there's a write in progress, or we do not * want to write, or when there's nothing left to write. */ if (beva->write_in_progress || beva->bev.connecting) return; if (!beva->ok || !(bev->enabled&EV_WRITE) || !evbuffer_get_length(bev->output)) { bev_async_del_write(beva); return; } at_most = evbuffer_get_length(bev->output); /* This is safe so long as bufferevent_get_write_max never returns * more than INT_MAX. That's true for now. XXXX */ limit = (int)_bufferevent_get_write_max(&beva->bev); if (at_most >= (size_t)limit && limit >= 0) at_most = limit; if (beva->bev.write_suspended) { bev_async_del_write(beva); return; } /* XXXX doesn't respect low-water mark very well. */ bufferevent_incref(bev); if (evbuffer_launch_write(bev->output, at_most, &beva->write_overlapped)) { bufferevent_decref(bev); beva->ok = 0; _bufferevent_run_eventcb(bev, BEV_EVENT_ERROR); } else { beva->write_in_progress = at_most; _bufferevent_decrement_write_buckets(&beva->bev, at_most); bev_async_add_write(beva); } } static void bev_async_consider_reading(struct bufferevent_async *beva) { size_t cur_size; size_t read_high; size_t at_most; int limit; struct bufferevent *bev = &beva->bev.bev; /* Don't read if there is a read in progress, or we do not * want to read. */ if (beva->read_in_progress || beva->bev.connecting) return; if (!beva->ok || !(bev->enabled&EV_READ)) { bev_async_del_read(beva); return; } /* Don't read if we're full */ cur_size = evbuffer_get_length(bev->input); read_high = bev->wm_read.high; if (read_high) { if (cur_size >= read_high) { bev_async_del_read(beva); return; } at_most = read_high - cur_size; } else { at_most = 16384; /* FIXME totally magic. */ } /* XXXX This over-commits. */ /* XXXX see also not above on cast on _bufferevent_get_write_max() */ limit = (int)_bufferevent_get_read_max(&beva->bev); if (at_most >= (size_t)limit && limit >= 0) at_most = limit; if (beva->bev.read_suspended) { bev_async_del_read(beva); return; } bufferevent_incref(bev); if (evbuffer_launch_read(bev->input, at_most, &beva->read_overlapped)) { beva->ok = 0; _bufferevent_run_eventcb(bev, BEV_EVENT_ERROR); bufferevent_decref(bev); } else { beva->read_in_progress = at_most; _bufferevent_decrement_read_buckets(&beva->bev, at_most); bev_async_add_read(beva); } return; } static void be_async_outbuf_callback(struct evbuffer *buf, const struct evbuffer_cb_info *cbinfo, void *arg) { struct bufferevent *bev = arg; struct bufferevent_async *bev_async = upcast(bev); /* If we added data to the outbuf and were not writing before, * we may want to write now. */ _bufferevent_incref_and_lock(bev); if (cbinfo->n_added) bev_async_consider_writing(bev_async); _bufferevent_decref_and_unlock(bev); } static void be_async_inbuf_callback(struct evbuffer *buf, const struct evbuffer_cb_info *cbinfo, void *arg) { struct bufferevent *bev = arg; struct bufferevent_async *bev_async = upcast(bev); /* If we drained data from the inbuf and were not reading before, * we may want to read now */ _bufferevent_incref_and_lock(bev); if (cbinfo->n_deleted) bev_async_consider_reading(bev_async); _bufferevent_decref_and_unlock(bev); } static int be_async_enable(struct bufferevent *buf, short what) { struct bufferevent_async *bev_async = upcast(buf); if (!bev_async->ok) return -1; if (bev_async->bev.connecting) { /* Don't launch anything during connection attempts. */ return 0; } if (what & EV_READ) BEV_RESET_GENERIC_READ_TIMEOUT(buf); if (what & EV_WRITE) BEV_RESET_GENERIC_WRITE_TIMEOUT(buf); /* If we newly enable reading or writing, and we aren't reading or writing already, consider launching a new read or write. */ if (what & EV_READ) bev_async_consider_reading(bev_async); if (what & EV_WRITE) bev_async_consider_writing(bev_async); return 0; } static int be_async_disable(struct bufferevent *bev, short what) { struct bufferevent_async *bev_async = upcast(bev); /* XXXX If we disable reading or writing, we may want to consider * canceling any in-progress read or write operation, though it might * not work. */ if (what & EV_READ) { BEV_DEL_GENERIC_READ_TIMEOUT(bev); bev_async_del_read(bev_async); } if (what & EV_WRITE) { BEV_DEL_GENERIC_WRITE_TIMEOUT(bev); bev_async_del_write(bev_async); } return 0; } static void be_async_destruct(struct bufferevent *bev) { struct bufferevent_async *bev_async = upcast(bev); struct bufferevent_private *bev_p = BEV_UPCAST(bev); evutil_socket_t fd; EVUTIL_ASSERT(!upcast(bev)->write_in_progress && !upcast(bev)->read_in_progress); bev_async_del_read(bev_async); bev_async_del_write(bev_async); fd = _evbuffer_overlapped_get_fd(bev->input); if (bev_p->options & BEV_OPT_CLOSE_ON_FREE) { /* XXXX possible double-close */ evutil_closesocket(fd); } /* delete this in case non-blocking connect was used */ if (event_initialized(&bev->ev_write)) { event_del(&bev->ev_write); _bufferevent_del_generic_timeout_cbs(bev); } } /* GetQueuedCompletionStatus doesn't reliably yield WSA error codes, so * we use WSAGetOverlappedResult to translate. */ static void bev_async_set_wsa_error(struct bufferevent *bev, struct event_overlapped *eo) { DWORD bytes, flags; evutil_socket_t fd; fd = _evbuffer_overlapped_get_fd(bev->input); WSAGetOverlappedResult(fd, &eo->overlapped, &bytes, FALSE, &flags); } static int be_async_flush(struct bufferevent *bev, short what, enum bufferevent_flush_mode mode) { return 0; } static void connect_complete(struct event_overlapped *eo, ev_uintptr_t key, ev_ssize_t nbytes, int ok) { struct bufferevent_async *bev_a = upcast_connect(eo); struct bufferevent *bev = &bev_a->bev.bev; evutil_socket_t sock; BEV_LOCK(bev); EVUTIL_ASSERT(bev_a->bev.connecting); bev_a->bev.connecting = 0; sock = _evbuffer_overlapped_get_fd(bev_a->bev.bev.input); /* XXXX Handle error? */ setsockopt(sock, SOL_SOCKET, SO_UPDATE_CONNECT_CONTEXT, NULL, 0); if (ok) bufferevent_async_set_connected(bev); else bev_async_set_wsa_error(bev, eo); _bufferevent_run_eventcb(bev, ok? BEV_EVENT_CONNECTED : BEV_EVENT_ERROR); event_base_del_virtual(bev->ev_base); _bufferevent_decref_and_unlock(bev); } static void read_complete(struct event_overlapped *eo, ev_uintptr_t key, ev_ssize_t nbytes, int ok) { struct bufferevent_async *bev_a = upcast_read(eo); struct bufferevent *bev = &bev_a->bev.bev; short what = BEV_EVENT_READING; ev_ssize_t amount_unread; BEV_LOCK(bev); EVUTIL_ASSERT(bev_a->read_in_progress); amount_unread = bev_a->read_in_progress - nbytes; evbuffer_commit_read(bev->input, nbytes); bev_a->read_in_progress = 0; if (amount_unread) _bufferevent_decrement_read_buckets(&bev_a->bev, -amount_unread); if (!ok) bev_async_set_wsa_error(bev, eo); if (bev_a->ok) { if (ok && nbytes) { BEV_RESET_GENERIC_READ_TIMEOUT(bev); if (evbuffer_get_length(bev->input) >= bev->wm_read.low) _bufferevent_run_readcb(bev); bev_async_consider_reading(bev_a); } else if (!ok) { what |= BEV_EVENT_ERROR; bev_a->ok = 0; _bufferevent_run_eventcb(bev, what); } else if (!nbytes) { what |= BEV_EVENT_EOF; bev_a->ok = 0; _bufferevent_run_eventcb(bev, what); } } _bufferevent_decref_and_unlock(bev); } static void write_complete(struct event_overlapped *eo, ev_uintptr_t key, ev_ssize_t nbytes, int ok) { struct bufferevent_async *bev_a = upcast_write(eo); struct bufferevent *bev = &bev_a->bev.bev; short what = BEV_EVENT_WRITING; ev_ssize_t amount_unwritten; BEV_LOCK(bev); EVUTIL_ASSERT(bev_a->write_in_progress); amount_unwritten = bev_a->write_in_progress - nbytes; evbuffer_commit_write(bev->output, nbytes); bev_a->write_in_progress = 0; if (amount_unwritten) _bufferevent_decrement_write_buckets(&bev_a->bev, -amount_unwritten); if (!ok) bev_async_set_wsa_error(bev, eo); if (bev_a->ok) { if (ok && nbytes) { BEV_RESET_GENERIC_WRITE_TIMEOUT(bev); if (evbuffer_get_length(bev->output) <= bev->wm_write.low) _bufferevent_run_writecb(bev); bev_async_consider_writing(bev_a); } else if (!ok) { what |= BEV_EVENT_ERROR; bev_a->ok = 0; _bufferevent_run_eventcb(bev, what); } else if (!nbytes) { what |= BEV_EVENT_EOF; bev_a->ok = 0; _bufferevent_run_eventcb(bev, what); } } _bufferevent_decref_and_unlock(bev); } struct bufferevent * bufferevent_async_new(struct event_base *base, evutil_socket_t fd, int options) { struct bufferevent_async *bev_a; struct bufferevent *bev; struct event_iocp_port *iocp; options |= BEV_OPT_THREADSAFE; if (!(iocp = event_base_get_iocp(base))) return NULL; if (fd >= 0 && event_iocp_port_associate(iocp, fd, 1)<0) { int err = GetLastError(); /* We may have alrady associated this fd with a port. * Let's hope it's this port, and that the error code * for doing this neer changes. */ if (err != ERROR_INVALID_PARAMETER) return NULL; } if (!(bev_a = mm_calloc(1, sizeof(struct bufferevent_async)))) return NULL; bev = &bev_a->bev.bev; if (!(bev->input = evbuffer_overlapped_new(fd))) { mm_free(bev_a); return NULL; } if (!(bev->output = evbuffer_overlapped_new(fd))) { evbuffer_free(bev->input); mm_free(bev_a); return NULL; } if (bufferevent_init_common(&bev_a->bev, base, &bufferevent_ops_async, options)<0) goto err; evbuffer_add_cb(bev->input, be_async_inbuf_callback, bev); evbuffer_add_cb(bev->output, be_async_outbuf_callback, bev); event_overlapped_init(&bev_a->connect_overlapped, connect_complete); event_overlapped_init(&bev_a->read_overlapped, read_complete); event_overlapped_init(&bev_a->write_overlapped, write_complete); bev_a->ok = fd >= 0; if (bev_a->ok) _bufferevent_init_generic_timeout_cbs(bev); return bev; err: bufferevent_free(&bev_a->bev.bev); return NULL; } void bufferevent_async_set_connected(struct bufferevent *bev) { struct bufferevent_async *bev_async = upcast(bev); bev_async->ok = 1; _bufferevent_init_generic_timeout_cbs(bev); /* Now's a good time to consider reading/writing */ be_async_enable(bev, bev->enabled); } int bufferevent_async_can_connect(struct bufferevent *bev) { const struct win32_extension_fns *ext = event_get_win32_extension_fns(); if (BEV_IS_ASYNC(bev) && event_base_get_iocp(bev->ev_base) && ext && ext->ConnectEx) return 1; return 0; } int bufferevent_async_connect(struct bufferevent *bev, evutil_socket_t fd, const struct sockaddr *sa, int socklen) { BOOL rc; struct bufferevent_async *bev_async = upcast(bev); struct sockaddr_storage ss; const struct win32_extension_fns *ext = event_get_win32_extension_fns(); EVUTIL_ASSERT(ext && ext->ConnectEx && fd >= 0 && sa != NULL); /* ConnectEx() requires that the socket be bound to an address * with bind() before using, otherwise it will fail. We attempt * to issue a bind() here, taking into account that the error * code is set to WSAEINVAL when the socket is already bound. */ memset(&ss, 0, sizeof(ss)); if (sa->sa_family == AF_INET) { struct sockaddr_in *sin = (struct sockaddr_in *)&ss; sin->sin_family = AF_INET; sin->sin_addr.s_addr = INADDR_ANY; } else if (sa->sa_family == AF_INET6) { struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&ss; sin6->sin6_family = AF_INET6; sin6->sin6_addr = in6addr_any; } else { /* Well, the user will have to bind() */ return -1; } if (bind(fd, (struct sockaddr *)&ss, sizeof(ss)) < 0 && WSAGetLastError() != WSAEINVAL) return -1; event_base_add_virtual(bev->ev_base); bufferevent_incref(bev); rc = ext->ConnectEx(fd, sa, socklen, NULL, 0, NULL, &bev_async->connect_overlapped.overlapped); if (rc || WSAGetLastError() == ERROR_IO_PENDING) return 0; event_base_del_virtual(bev->ev_base); bufferevent_decref(bev); return -1; } static int be_async_ctrl(struct bufferevent *bev, enum bufferevent_ctrl_op op, union bufferevent_ctrl_data *data) { switch (op) { case BEV_CTRL_GET_FD: data->fd = _evbuffer_overlapped_get_fd(bev->input); return 0; case BEV_CTRL_SET_FD: { struct event_iocp_port *iocp; if (data->fd == _evbuffer_overlapped_get_fd(bev->input)) return 0; if (!(iocp = event_base_get_iocp(bev->ev_base))) return -1; if (event_iocp_port_associate(iocp, data->fd, 1) < 0) return -1; _evbuffer_overlapped_set_fd(bev->input, data->fd); _evbuffer_overlapped_set_fd(bev->output, data->fd); return 0; } case BEV_CTRL_CANCEL_ALL: { struct bufferevent_async *bev_a = upcast(bev); evutil_socket_t fd = _evbuffer_overlapped_get_fd(bev->input); if (fd != (evutil_socket_t)INVALID_SOCKET && (bev_a->bev.options & BEV_OPT_CLOSE_ON_FREE)) { closesocket(fd); } bev_a->ok = 0; return 0; } case BEV_CTRL_GET_UNDERLYING: default: return -1; } } dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent_filter.c000644 000765 000024 00000035310 13037731714 024357 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * Copyright (c) 2002-2006 Niels Provos * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include "event2/event-config.h" #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_STDARG_H #include #endif #ifdef WIN32 #include #endif #include "event2/util.h" #include "event2/bufferevent.h" #include "event2/buffer.h" #include "event2/bufferevent_struct.h" #include "event2/event.h" #include "log-internal.h" #include "mm-internal.h" #include "bufferevent-internal.h" #include "util-internal.h" /* prototypes */ static int be_filter_enable(struct bufferevent *, short); static int be_filter_disable(struct bufferevent *, short); static void be_filter_destruct(struct bufferevent *); static void be_filter_readcb(struct bufferevent *, void *); static void be_filter_writecb(struct bufferevent *, void *); static void be_filter_eventcb(struct bufferevent *, short, void *); static int be_filter_flush(struct bufferevent *bufev, short iotype, enum bufferevent_flush_mode mode); static int be_filter_ctrl(struct bufferevent *, enum bufferevent_ctrl_op, union bufferevent_ctrl_data *); static void bufferevent_filtered_outbuf_cb(struct evbuffer *buf, const struct evbuffer_cb_info *info, void *arg); struct bufferevent_filtered { struct bufferevent_private bev; /** The bufferevent that we read/write filtered data from/to. */ struct bufferevent *underlying; /** A callback on our outbuf to notice when somebody adds data */ struct evbuffer_cb_entry *outbuf_cb; /** True iff we have received an EOF callback from the underlying * bufferevent. */ unsigned got_eof; /** Function to free context when we're done. */ void (*free_context)(void *); /** Input filter */ bufferevent_filter_cb process_in; /** Output filter */ bufferevent_filter_cb process_out; /** User-supplied argument to the filters. */ void *context; }; const struct bufferevent_ops bufferevent_ops_filter = { "filter", evutil_offsetof(struct bufferevent_filtered, bev.bev), be_filter_enable, be_filter_disable, be_filter_destruct, _bufferevent_generic_adj_timeouts, be_filter_flush, be_filter_ctrl, }; /* Given a bufferevent that's really the bev filter of a bufferevent_filtered, * return that bufferevent_filtered. Returns NULL otherwise.*/ static inline struct bufferevent_filtered * upcast(struct bufferevent *bev) { struct bufferevent_filtered *bev_f; if (bev->be_ops != &bufferevent_ops_filter) return NULL; bev_f = (void*)( ((char*)bev) - evutil_offsetof(struct bufferevent_filtered, bev.bev)); EVUTIL_ASSERT(bev_f->bev.bev.be_ops == &bufferevent_ops_filter); return bev_f; } #define downcast(bev_f) (&(bev_f)->bev.bev) /** Return 1 iff bevf's underlying bufferevent's output buffer is at or * over its high watermark such that we should not write to it in a given * flush mode. */ static int be_underlying_writebuf_full(struct bufferevent_filtered *bevf, enum bufferevent_flush_mode state) { struct bufferevent *u = bevf->underlying; return state == BEV_NORMAL && u->wm_write.high && evbuffer_get_length(u->output) >= u->wm_write.high; } /** Return 1 if our input buffer is at or over its high watermark such that we * should not write to it in a given flush mode. */ static int be_readbuf_full(struct bufferevent_filtered *bevf, enum bufferevent_flush_mode state) { struct bufferevent *bufev = downcast(bevf); return state == BEV_NORMAL && bufev->wm_read.high && evbuffer_get_length(bufev->input) >= bufev->wm_read.high; } /* Filter to use when we're created with a NULL filter. */ static enum bufferevent_filter_result be_null_filter(struct evbuffer *src, struct evbuffer *dst, ev_ssize_t lim, enum bufferevent_flush_mode state, void *ctx) { (void)state; if (evbuffer_remove_buffer(src, dst, lim) == 0) return BEV_OK; else return BEV_ERROR; } struct bufferevent * bufferevent_filter_new(struct bufferevent *underlying, bufferevent_filter_cb input_filter, bufferevent_filter_cb output_filter, int options, void (*free_context)(void *), void *ctx) { struct bufferevent_filtered *bufev_f; int tmp_options = options & ~BEV_OPT_THREADSAFE; if (!underlying) return NULL; if (!input_filter) input_filter = be_null_filter; if (!output_filter) output_filter = be_null_filter; bufev_f = mm_calloc(1, sizeof(struct bufferevent_filtered)); if (!bufev_f) return NULL; if (bufferevent_init_common(&bufev_f->bev, underlying->ev_base, &bufferevent_ops_filter, tmp_options) < 0) { mm_free(bufev_f); return NULL; } if (options & BEV_OPT_THREADSAFE) { bufferevent_enable_locking(downcast(bufev_f), NULL); } bufev_f->underlying = underlying; bufev_f->process_in = input_filter; bufev_f->process_out = output_filter; bufev_f->free_context = free_context; bufev_f->context = ctx; bufferevent_setcb(bufev_f->underlying, be_filter_readcb, be_filter_writecb, be_filter_eventcb, bufev_f); bufev_f->outbuf_cb = evbuffer_add_cb(downcast(bufev_f)->output, bufferevent_filtered_outbuf_cb, bufev_f); _bufferevent_init_generic_timeout_cbs(downcast(bufev_f)); bufferevent_incref(underlying); bufferevent_enable(underlying, EV_READ|EV_WRITE); bufferevent_suspend_read(underlying, BEV_SUSPEND_FILT_READ); return downcast(bufev_f); } static void be_filter_destruct(struct bufferevent *bev) { struct bufferevent_filtered *bevf = upcast(bev); EVUTIL_ASSERT(bevf); if (bevf->free_context) bevf->free_context(bevf->context); if (bevf->bev.options & BEV_OPT_CLOSE_ON_FREE) { /* Yes, there is also a decref in bufferevent_decref. * That decref corresponds to the incref when we set * underlying for the first time. This decref is an * extra one to remove the last reference. */ if (BEV_UPCAST(bevf->underlying)->refcnt < 2) { event_warnx("BEV_OPT_CLOSE_ON_FREE set on an " "bufferevent with too few references"); } else { bufferevent_free(bevf->underlying); } } else { if (bevf->underlying) { if (bevf->underlying->errorcb == be_filter_eventcb) bufferevent_setcb(bevf->underlying, NULL, NULL, NULL, NULL); bufferevent_unsuspend_read(bevf->underlying, BEV_SUSPEND_FILT_READ); } } _bufferevent_del_generic_timeout_cbs(bev); } static int be_filter_enable(struct bufferevent *bev, short event) { struct bufferevent_filtered *bevf = upcast(bev); if (event & EV_WRITE) BEV_RESET_GENERIC_WRITE_TIMEOUT(bev); if (event & EV_READ) { BEV_RESET_GENERIC_READ_TIMEOUT(bev); bufferevent_unsuspend_read(bevf->underlying, BEV_SUSPEND_FILT_READ); } return 0; } static int be_filter_disable(struct bufferevent *bev, short event) { struct bufferevent_filtered *bevf = upcast(bev); if (event & EV_WRITE) BEV_DEL_GENERIC_WRITE_TIMEOUT(bev); if (event & EV_READ) { BEV_DEL_GENERIC_READ_TIMEOUT(bev); bufferevent_suspend_read(bevf->underlying, BEV_SUSPEND_FILT_READ); } return 0; } static enum bufferevent_filter_result be_filter_process_input(struct bufferevent_filtered *bevf, enum bufferevent_flush_mode state, int *processed_out) { enum bufferevent_filter_result res; struct bufferevent *bev = downcast(bevf); if (state == BEV_NORMAL) { /* If we're in 'normal' mode, don't urge data on the filter * unless we're reading data and under our high-water mark.*/ if (!(bev->enabled & EV_READ) || be_readbuf_full(bevf, state)) return BEV_OK; } do { ev_ssize_t limit = -1; if (state == BEV_NORMAL && bev->wm_read.high) limit = bev->wm_read.high - evbuffer_get_length(bev->input); res = bevf->process_in(bevf->underlying->input, bev->input, limit, state, bevf->context); if (res == BEV_OK) *processed_out = 1; } while (res == BEV_OK && (bev->enabled & EV_READ) && evbuffer_get_length(bevf->underlying->input) && !be_readbuf_full(bevf, state)); if (*processed_out) BEV_RESET_GENERIC_READ_TIMEOUT(bev); return res; } static enum bufferevent_filter_result be_filter_process_output(struct bufferevent_filtered *bevf, enum bufferevent_flush_mode state, int *processed_out) { /* Requires references and lock: might call writecb */ enum bufferevent_filter_result res = BEV_OK; struct bufferevent *bufev = downcast(bevf); int again = 0; if (state == BEV_NORMAL) { /* If we're in 'normal' mode, don't urge data on the * filter unless we're writing data, and the underlying * bufferevent is accepting data, and we have data to * give the filter. If we're in 'flush' or 'finish', * call the filter no matter what. */ if (!(bufev->enabled & EV_WRITE) || be_underlying_writebuf_full(bevf, state) || !evbuffer_get_length(bufev->output)) return BEV_OK; } /* disable the callback that calls this function when the user adds to the output buffer. */ evbuffer_cb_set_flags(bufev->output, bevf->outbuf_cb, 0); do { int processed = 0; again = 0; do { ev_ssize_t limit = -1; if (state == BEV_NORMAL && bevf->underlying->wm_write.high) limit = bevf->underlying->wm_write.high - evbuffer_get_length(bevf->underlying->output); res = bevf->process_out(downcast(bevf)->output, bevf->underlying->output, limit, state, bevf->context); if (res == BEV_OK) processed = *processed_out = 1; } while (/* Stop if the filter wasn't successful...*/ res == BEV_OK && /* Or if we aren't writing any more. */ (bufev->enabled & EV_WRITE) && /* Of if we have nothing more to write and we are * not flushing. */ evbuffer_get_length(bufev->output) && /* Or if we have filled the underlying output buffer. */ !be_underlying_writebuf_full(bevf,state)); if (processed && evbuffer_get_length(bufev->output) <= bufev->wm_write.low) { /* call the write callback.*/ _bufferevent_run_writecb(bufev); if (res == BEV_OK && (bufev->enabled & EV_WRITE) && evbuffer_get_length(bufev->output) && !be_underlying_writebuf_full(bevf, state)) { again = 1; } } } while (again); /* reenable the outbuf_cb */ evbuffer_cb_set_flags(bufev->output,bevf->outbuf_cb, EVBUFFER_CB_ENABLED); if (*processed_out) BEV_RESET_GENERIC_WRITE_TIMEOUT(bufev); return res; } /* Called when the size of our outbuf changes. */ static void bufferevent_filtered_outbuf_cb(struct evbuffer *buf, const struct evbuffer_cb_info *cbinfo, void *arg) { struct bufferevent_filtered *bevf = arg; struct bufferevent *bev = downcast(bevf); if (cbinfo->n_added) { int processed_any = 0; /* Somebody added more data to the output buffer. Try to * process it, if we should. */ _bufferevent_incref_and_lock(bev); be_filter_process_output(bevf, BEV_NORMAL, &processed_any); _bufferevent_decref_and_unlock(bev); } } /* Called when the underlying socket has read. */ static void be_filter_readcb(struct bufferevent *underlying, void *_me) { struct bufferevent_filtered *bevf = _me; enum bufferevent_filter_result res; enum bufferevent_flush_mode state; struct bufferevent *bufev = downcast(bevf); int processed_any = 0; _bufferevent_incref_and_lock(bufev); if (bevf->got_eof) state = BEV_FINISHED; else state = BEV_NORMAL; /* XXXX use return value */ res = be_filter_process_input(bevf, state, &processed_any); (void)res; /* XXX This should be in process_input, not here. There are * other places that can call process-input, and they should * force readcb calls as needed. */ if (processed_any && evbuffer_get_length(bufev->input) >= bufev->wm_read.low) _bufferevent_run_readcb(bufev); _bufferevent_decref_and_unlock(bufev); } /* Called when the underlying socket has drained enough that we can write to it. */ static void be_filter_writecb(struct bufferevent *underlying, void *_me) { struct bufferevent_filtered *bevf = _me; struct bufferevent *bev = downcast(bevf); int processed_any = 0; _bufferevent_incref_and_lock(bev); be_filter_process_output(bevf, BEV_NORMAL, &processed_any); _bufferevent_decref_and_unlock(bev); } /* Called when the underlying socket has given us an error */ static void be_filter_eventcb(struct bufferevent *underlying, short what, void *_me) { struct bufferevent_filtered *bevf = _me; struct bufferevent *bev = downcast(bevf); _bufferevent_incref_and_lock(bev); /* All we can really to is tell our own eventcb. */ _bufferevent_run_eventcb(bev, what); _bufferevent_decref_and_unlock(bev); } static int be_filter_flush(struct bufferevent *bufev, short iotype, enum bufferevent_flush_mode mode) { struct bufferevent_filtered *bevf = upcast(bufev); int processed_any = 0; EVUTIL_ASSERT(bevf); _bufferevent_incref_and_lock(bufev); if (iotype & EV_READ) { be_filter_process_input(bevf, mode, &processed_any); } if (iotype & EV_WRITE) { be_filter_process_output(bevf, mode, &processed_any); } /* XXX check the return value? */ /* XXX does this want to recursively call lower-level flushes? */ bufferevent_flush(bevf->underlying, iotype, mode); _bufferevent_decref_and_unlock(bufev); return processed_any; } static int be_filter_ctrl(struct bufferevent *bev, enum bufferevent_ctrl_op op, union bufferevent_ctrl_data *data) { struct bufferevent_filtered *bevf; switch (op) { case BEV_CTRL_GET_UNDERLYING: bevf = upcast(bev); data->ptr = bevf->underlying; return 0; case BEV_CTRL_GET_FD: case BEV_CTRL_SET_FD: case BEV_CTRL_CANCEL_ALL: default: return -1; } } dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent_openssl.c000644 000765 000024 00000112102 13037731714 024550 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include "event2/event-config.h" #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_STDARG_H #include #endif #ifdef _EVENT_HAVE_UNISTD_H #include #endif #ifdef WIN32 #include #endif #include "event2/bufferevent.h" #include "event2/bufferevent_struct.h" #include "event2/bufferevent_ssl.h" #include "event2/buffer.h" #include "event2/event.h" #include "mm-internal.h" #include "bufferevent-internal.h" #include "log-internal.h" #include #include #include /* * Define an OpenSSL bio that targets a bufferevent. */ /* -------------------- A BIO is an OpenSSL abstraction that handles reading and writing data. The library will happily speak SSL over anything that implements a BIO interface. Here we define a BIO implementation that directs its output to a bufferevent. We'll want to use this only when none of OpenSSL's built-in IO mechanisms work for us. -------------------- */ /* every BIO type needs its own integer type value. */ #define BIO_TYPE_LIBEVENT 57 /* ???? Arguably, we should set BIO_TYPE_FILTER or BIO_TYPE_SOURCE_SINK on * this. */ #if 0 static void print_err(int val) { int err; printf("Error was %d\n", val); while ((err = ERR_get_error())) { const char *msg = (const char*)ERR_reason_error_string(err); const char *lib = (const char*)ERR_lib_error_string(err); const char *func = (const char*)ERR_func_error_string(err); printf("%s in %s %s\n", msg, lib, func); } } #else #define print_err(v) ((void)0) #endif /* Called to initialize a new BIO */ static int bio_bufferevent_new(BIO *b) { b->init = 0; b->num = -1; b->ptr = NULL; /* We'll be putting the bufferevent in this field.*/ b->flags = 0; return 1; } /* Called to uninitialize the BIO. */ static int bio_bufferevent_free(BIO *b) { if (!b) return 0; if (b->shutdown) { if (b->init && b->ptr) bufferevent_free(b->ptr); b->init = 0; b->flags = 0; b->ptr = NULL; } return 1; } /* Called to extract data from the BIO. */ static int bio_bufferevent_read(BIO *b, char *out, int outlen) { int r = 0; struct evbuffer *input; BIO_clear_retry_flags(b); if (!out) return 0; if (!b->ptr) return -1; input = bufferevent_get_input(b->ptr); if (evbuffer_get_length(input) == 0) { /* If there's no data to read, say so. */ BIO_set_retry_read(b); return -1; } else { r = evbuffer_remove(input, out, outlen); } return r; } /* Called to write data info the BIO */ static int bio_bufferevent_write(BIO *b, const char *in, int inlen) { struct bufferevent *bufev = b->ptr; struct evbuffer *output; size_t outlen; BIO_clear_retry_flags(b); if (!b->ptr) return -1; output = bufferevent_get_output(bufev); outlen = evbuffer_get_length(output); /* Copy only as much data onto the output buffer as can fit under the * high-water mark. */ if (bufev->wm_write.high && bufev->wm_write.high <= (outlen+inlen)) { if (bufev->wm_write.high <= outlen) { /* If no data can fit, we'll need to retry later. */ BIO_set_retry_write(b); return -1; } inlen = bufev->wm_write.high - outlen; } EVUTIL_ASSERT(inlen > 0); evbuffer_add(output, in, inlen); return inlen; } /* Called to handle various requests */ static long bio_bufferevent_ctrl(BIO *b, int cmd, long num, void *ptr) { struct bufferevent *bufev = b->ptr; long ret = 1; switch (cmd) { case BIO_CTRL_GET_CLOSE: ret = b->shutdown; break; case BIO_CTRL_SET_CLOSE: b->shutdown = (int)num; break; case BIO_CTRL_PENDING: ret = evbuffer_get_length(bufferevent_get_input(bufev)) != 0; break; case BIO_CTRL_WPENDING: ret = evbuffer_get_length(bufferevent_get_output(bufev)) != 0; break; /* XXXX These two are given a special-case treatment because * of cargo-cultism. I should come up with a better reason. */ case BIO_CTRL_DUP: case BIO_CTRL_FLUSH: ret = 1; break; default: ret = 0; break; } return ret; } /* Called to write a string to the BIO */ static int bio_bufferevent_puts(BIO *b, const char *s) { return bio_bufferevent_write(b, s, strlen(s)); } /* Method table for the bufferevent BIO */ static BIO_METHOD methods_bufferevent = { BIO_TYPE_LIBEVENT, "bufferevent", bio_bufferevent_write, bio_bufferevent_read, bio_bufferevent_puts, NULL /* bio_bufferevent_gets */, bio_bufferevent_ctrl, bio_bufferevent_new, bio_bufferevent_free, NULL /* callback_ctrl */, }; /* Return the method table for the bufferevents BIO */ static BIO_METHOD * BIO_s_bufferevent(void) { return &methods_bufferevent; } /* Create a new BIO to wrap communication around a bufferevent. If close_flag * is true, the bufferevent will be freed when the BIO is closed. */ static BIO * BIO_new_bufferevent(struct bufferevent *bufferevent, int close_flag) { BIO *result; if (!bufferevent) return NULL; if (!(result = BIO_new(BIO_s_bufferevent()))) return NULL; result->init = 1; result->ptr = bufferevent; result->shutdown = close_flag ? 1 : 0; return result; } /* -------------------- Now, here's the OpenSSL-based implementation of bufferevent. The implementation comes in two flavors: one that connects its SSL object to an underlying bufferevent using a BIO_bufferevent, and one that has the SSL object connect to a socket directly. The latter should generally be faster, except on Windows, where your best bet is using a bufferevent_async. (OpenSSL supports many other BIO types, too. But we can't use any unless we have a good way to get notified when they become readable/writable.) -------------------- */ struct bio_data_counts { unsigned long n_written; unsigned long n_read; }; struct bufferevent_openssl { /* Shared fields with common bufferevent implementation code. If we were set up with an underlying bufferevent, we use the events here as timers only. If we have an SSL, then we use the events as socket events. */ struct bufferevent_private bev; /* An underlying bufferevent that we're directing our output to. If it's NULL, then we're connected to an fd, not an evbuffer. */ struct bufferevent *underlying; /* The SSL object doing our encryption. */ SSL *ssl; /* A callback that's invoked when data arrives on our outbuf so we know to write data to the SSL. */ struct evbuffer_cb_entry *outbuf_cb; /* A count of how much data the bios have read/written total. Used for rate-limiting. */ struct bio_data_counts counts; /* If this value is greater than 0, then the last SSL_write blocked, * and we need to try it again with this many bytes. */ ev_ssize_t last_write; #define NUM_ERRORS 3 ev_uint32_t errors[NUM_ERRORS]; /* When we next get available space, we should say "read" instead of "write". This can happen if there's a renegotiation during a read operation. */ unsigned read_blocked_on_write : 1; /* When we next get data, we should say "write" instead of "read". */ unsigned write_blocked_on_read : 1; /* XXX */ unsigned allow_dirty_shutdown : 1; /* XXXX */ unsigned fd_is_set : 1; /* XXX */ unsigned n_errors : 2; /* Are we currently connecting, accepting, or doing IO? */ unsigned state : 2; }; static int be_openssl_enable(struct bufferevent *, short); static int be_openssl_disable(struct bufferevent *, short); static void be_openssl_destruct(struct bufferevent *); static int be_openssl_adj_timeouts(struct bufferevent *); static int be_openssl_flush(struct bufferevent *bufev, short iotype, enum bufferevent_flush_mode mode); static int be_openssl_ctrl(struct bufferevent *, enum bufferevent_ctrl_op, union bufferevent_ctrl_data *); const struct bufferevent_ops bufferevent_ops_openssl = { "ssl", evutil_offsetof(struct bufferevent_openssl, bev.bev), be_openssl_enable, be_openssl_disable, be_openssl_destruct, be_openssl_adj_timeouts, be_openssl_flush, be_openssl_ctrl, }; /* Given a bufferevent, return a pointer to the bufferevent_openssl that * contains it, if any. */ static inline struct bufferevent_openssl * upcast(struct bufferevent *bev) { struct bufferevent_openssl *bev_o; if (bev->be_ops != &bufferevent_ops_openssl) return NULL; bev_o = (void*)( ((char*)bev) - evutil_offsetof(struct bufferevent_openssl, bev.bev)); EVUTIL_ASSERT(bev_o->bev.bev.be_ops == &bufferevent_ops_openssl); return bev_o; } static inline void put_error(struct bufferevent_openssl *bev_ssl, unsigned long err) { if (bev_ssl->n_errors == NUM_ERRORS) return; /* The error type according to openssl is "unsigned long", but openssl never uses more than 32 bits of it. It _can't_ use more than 32 bits of it, since it needs to report errors on systems where long is only 32 bits. */ bev_ssl->errors[bev_ssl->n_errors++] = (ev_uint32_t) err; } /* Have the base communications channel (either the underlying bufferevent or * ev_read and ev_write) start reading. Take the read-blocked-on-write flag * into account. */ static int start_reading(struct bufferevent_openssl *bev_ssl) { if (bev_ssl->underlying) { bufferevent_unsuspend_read(bev_ssl->underlying, BEV_SUSPEND_FILT_READ); return 0; } else { struct bufferevent *bev = &bev_ssl->bev.bev; int r; r = _bufferevent_add_event(&bev->ev_read, &bev->timeout_read); if (r == 0 && bev_ssl->read_blocked_on_write) r = _bufferevent_add_event(&bev->ev_write, &bev->timeout_write); return r; } } /* Have the base communications channel (either the underlying bufferevent or * ev_read and ev_write) start writing. Take the write-blocked-on-read flag * into account. */ static int start_writing(struct bufferevent_openssl *bev_ssl) { int r = 0; if (bev_ssl->underlying) { ; } else { struct bufferevent *bev = &bev_ssl->bev.bev; r = _bufferevent_add_event(&bev->ev_write, &bev->timeout_write); if (!r && bev_ssl->write_blocked_on_read) r = _bufferevent_add_event(&bev->ev_read, &bev->timeout_read); } return r; } static void stop_reading(struct bufferevent_openssl *bev_ssl) { if (bev_ssl->write_blocked_on_read) return; if (bev_ssl->underlying) { bufferevent_suspend_read(bev_ssl->underlying, BEV_SUSPEND_FILT_READ); } else { struct bufferevent *bev = &bev_ssl->bev.bev; event_del(&bev->ev_read); } } static void stop_writing(struct bufferevent_openssl *bev_ssl) { if (bev_ssl->read_blocked_on_write) return; if (bev_ssl->underlying) { ; } else { struct bufferevent *bev = &bev_ssl->bev.bev; event_del(&bev->ev_write); } } static int set_rbow(struct bufferevent_openssl *bev_ssl) { if (!bev_ssl->underlying) stop_reading(bev_ssl); bev_ssl->read_blocked_on_write = 1; return start_writing(bev_ssl); } static int set_wbor(struct bufferevent_openssl *bev_ssl) { if (!bev_ssl->underlying) stop_writing(bev_ssl); bev_ssl->write_blocked_on_read = 1; return start_reading(bev_ssl); } static int clear_rbow(struct bufferevent_openssl *bev_ssl) { struct bufferevent *bev = &bev_ssl->bev.bev; int r = 0; bev_ssl->read_blocked_on_write = 0; if (!(bev->enabled & EV_WRITE)) stop_writing(bev_ssl); if (bev->enabled & EV_READ) r = start_reading(bev_ssl); return r; } static int clear_wbor(struct bufferevent_openssl *bev_ssl) { struct bufferevent *bev = &bev_ssl->bev.bev; int r = 0; bev_ssl->write_blocked_on_read = 0; if (!(bev->enabled & EV_READ)) stop_reading(bev_ssl); if (bev->enabled & EV_WRITE) r = start_writing(bev_ssl); return r; } static void conn_closed(struct bufferevent_openssl *bev_ssl, int errcode, int ret) { int event = BEV_EVENT_ERROR; int dirty_shutdown = 0; unsigned long err; switch (errcode) { case SSL_ERROR_ZERO_RETURN: /* Possibly a clean shutdown. */ if (SSL_get_shutdown(bev_ssl->ssl) & SSL_RECEIVED_SHUTDOWN) event = BEV_EVENT_EOF; else dirty_shutdown = 1; break; case SSL_ERROR_SYSCALL: /* IO error; possibly a dirty shutdown. */ if (ret == 0 && ERR_peek_error() == 0) dirty_shutdown = 1; break; case SSL_ERROR_SSL: /* Protocol error. */ break; case SSL_ERROR_WANT_X509_LOOKUP: /* XXXX handle this. */ break; case SSL_ERROR_NONE: case SSL_ERROR_WANT_READ: case SSL_ERROR_WANT_WRITE: case SSL_ERROR_WANT_CONNECT: case SSL_ERROR_WANT_ACCEPT: default: /* should be impossible; treat as normal error. */ event_warnx("BUG: Unexpected OpenSSL error code %d", errcode); break; } while ((err = ERR_get_error())) { put_error(bev_ssl, err); } if (dirty_shutdown && bev_ssl->allow_dirty_shutdown) event = BEV_EVENT_EOF; stop_reading(bev_ssl); stop_writing(bev_ssl); _bufferevent_run_eventcb(&bev_ssl->bev.bev, event); } static void init_bio_counts(struct bufferevent_openssl *bev_ssl) { bev_ssl->counts.n_written = BIO_number_written(SSL_get_wbio(bev_ssl->ssl)); bev_ssl->counts.n_read = BIO_number_read(SSL_get_rbio(bev_ssl->ssl)); } static inline void decrement_buckets(struct bufferevent_openssl *bev_ssl) { unsigned long num_w = BIO_number_written(SSL_get_wbio(bev_ssl->ssl)); unsigned long num_r = BIO_number_read(SSL_get_rbio(bev_ssl->ssl)); /* These next two subtractions can wrap around. That's okay. */ unsigned long w = num_w - bev_ssl->counts.n_written; unsigned long r = num_r - bev_ssl->counts.n_read; if (w) _bufferevent_decrement_write_buckets(&bev_ssl->bev, w); if (r) _bufferevent_decrement_read_buckets(&bev_ssl->bev, r); bev_ssl->counts.n_written = num_w; bev_ssl->counts.n_read = num_r; } #define OP_MADE_PROGRESS 1 #define OP_BLOCKED 2 #define OP_ERR 4 /* Return a bitmask of OP_MADE_PROGRESS (if we read anything); OP_BLOCKED (if we're now blocked); and OP_ERR (if an error occurred). */ static int do_read(struct bufferevent_openssl *bev_ssl, int n_to_read) { /* Requires lock */ struct bufferevent *bev = &bev_ssl->bev.bev; struct evbuffer *input = bev->input; int r, n, i, n_used = 0, atmost; struct evbuffer_iovec space[2]; int result = 0; if (bev_ssl->bev.read_suspended) return 0; atmost = _bufferevent_get_read_max(&bev_ssl->bev); if (n_to_read > atmost) n_to_read = atmost; n = evbuffer_reserve_space(input, n_to_read, space, 2); if (n < 0) return OP_ERR; for (i=0; ibev.read_suspended) break; r = SSL_read(bev_ssl->ssl, space[i].iov_base, space[i].iov_len); if (r>0) { result |= OP_MADE_PROGRESS; if (bev_ssl->read_blocked_on_write) if (clear_rbow(bev_ssl) < 0) return OP_ERR | result; ++n_used; space[i].iov_len = r; decrement_buckets(bev_ssl); } else { int err = SSL_get_error(bev_ssl->ssl, r); print_err(err); switch (err) { case SSL_ERROR_WANT_READ: /* Can't read until underlying has more data. */ if (bev_ssl->read_blocked_on_write) if (clear_rbow(bev_ssl) < 0) return OP_ERR | result; break; case SSL_ERROR_WANT_WRITE: /* This read operation requires a write, and the * underlying is full */ if (!bev_ssl->read_blocked_on_write) if (set_rbow(bev_ssl) < 0) return OP_ERR | result; break; default: conn_closed(bev_ssl, err, r); break; } result |= OP_BLOCKED; break; /* out of the loop */ } } if (n_used) { evbuffer_commit_space(input, space, n_used); if (bev_ssl->underlying) BEV_RESET_GENERIC_READ_TIMEOUT(bev); } return result; } /* Return a bitmask of OP_MADE_PROGRESS (if we wrote anything); OP_BLOCKED (if we're now blocked); and OP_ERR (if an error occurred). */ static int do_write(struct bufferevent_openssl *bev_ssl, int atmost) { int i, r, n, n_written = 0; struct bufferevent *bev = &bev_ssl->bev.bev; struct evbuffer *output = bev->output; struct evbuffer_iovec space[8]; int result = 0; if (bev_ssl->last_write > 0) atmost = bev_ssl->last_write; else atmost = _bufferevent_get_write_max(&bev_ssl->bev); n = evbuffer_peek(output, atmost, NULL, space, 8); if (n < 0) return OP_ERR | result; if (n > 8) n = 8; for (i=0; i < n; ++i) { if (bev_ssl->bev.write_suspended) break; /* SSL_write will (reasonably) return 0 if we tell it to send 0 data. Skip this case so we don't interpret the result as an error */ if (space[i].iov_len == 0) continue; r = SSL_write(bev_ssl->ssl, space[i].iov_base, space[i].iov_len); if (r > 0) { result |= OP_MADE_PROGRESS; if (bev_ssl->write_blocked_on_read) if (clear_wbor(bev_ssl) < 0) return OP_ERR | result; n_written += r; bev_ssl->last_write = -1; decrement_buckets(bev_ssl); } else { int err = SSL_get_error(bev_ssl->ssl, r); print_err(err); switch (err) { case SSL_ERROR_WANT_WRITE: /* Can't read until underlying has more data. */ if (bev_ssl->write_blocked_on_read) if (clear_wbor(bev_ssl) < 0) return OP_ERR | result; bev_ssl->last_write = space[i].iov_len; break; case SSL_ERROR_WANT_READ: /* This read operation requires a write, and the * underlying is full */ if (!bev_ssl->write_blocked_on_read) if (set_wbor(bev_ssl) < 0) return OP_ERR | result; bev_ssl->last_write = space[i].iov_len; break; default: conn_closed(bev_ssl, err, r); bev_ssl->last_write = -1; break; } result |= OP_BLOCKED; break; } } if (n_written) { evbuffer_drain(output, n_written); if (bev_ssl->underlying) BEV_RESET_GENERIC_WRITE_TIMEOUT(bev); if (evbuffer_get_length(output) <= bev->wm_write.low) _bufferevent_run_writecb(bev); } return result; } #define WRITE_FRAME 15000 #define READ_DEFAULT 4096 /* Try to figure out how many bytes to read; return 0 if we shouldn't be * reading. */ static int bytes_to_read(struct bufferevent_openssl *bev) { struct evbuffer *input = bev->bev.bev.input; struct event_watermark *wm = &bev->bev.bev.wm_read; int result = READ_DEFAULT; ev_ssize_t limit; /* XXX 99% of this is generic code that nearly all bufferevents will * want. */ if (bev->write_blocked_on_read) { return 0; } if (! (bev->bev.bev.enabled & EV_READ)) { return 0; } if (bev->bev.read_suspended) { return 0; } if (wm->high) { if (evbuffer_get_length(input) >= wm->high) { return 0; } result = wm->high - evbuffer_get_length(input); } else { result = READ_DEFAULT; } /* Respect the rate limit */ limit = _bufferevent_get_read_max(&bev->bev); if (result > limit) { result = limit; } return result; } /* Things look readable. If write is blocked on read, write till it isn't. * Read from the underlying buffer until we block or we hit our high-water * mark. */ static void consider_reading(struct bufferevent_openssl *bev_ssl) { int r; int n_to_read; int all_result_flags = 0; while (bev_ssl->write_blocked_on_read) { r = do_write(bev_ssl, WRITE_FRAME); if (r & (OP_BLOCKED|OP_ERR)) break; } if (bev_ssl->write_blocked_on_read) return; n_to_read = bytes_to_read(bev_ssl); while (n_to_read) { r = do_read(bev_ssl, n_to_read); all_result_flags |= r; if (r & (OP_BLOCKED|OP_ERR)) break; if (bev_ssl->bev.read_suspended) break; /* Read all pending data. This won't hit the network * again, and will (most importantly) put us in a state * where we don't need to read anything else until the * socket is readable again. It'll potentially make us * overrun our read high-watermark (somewhat * regrettable). The damage to the rate-limit has * already been done, since OpenSSL went and read a * whole SSL record anyway. */ n_to_read = SSL_pending(bev_ssl->ssl); /* XXX This if statement is actually a bad bug, added to avoid * XXX a worse bug. * * The bad bug: It can potentially cause resource unfairness * by reading too much data from the underlying bufferevent; * it can potentially cause read looping if the underlying * bufferevent is a bufferevent_pair and deferred callbacks * aren't used. * * The worse bug: If we didn't do this, then we would * potentially not read any more from bev_ssl->underlying * until more data arrived there, which could lead to us * waiting forever. */ if (!n_to_read && bev_ssl->underlying) n_to_read = bytes_to_read(bev_ssl); } if (all_result_flags & OP_MADE_PROGRESS) { struct bufferevent *bev = &bev_ssl->bev.bev; struct evbuffer *input = bev->input; if (evbuffer_get_length(input) >= bev->wm_read.low) { _bufferevent_run_readcb(bev); } } if (!bev_ssl->underlying) { /* Should be redundant, but let's avoid busy-looping */ if (bev_ssl->bev.read_suspended || !(bev_ssl->bev.bev.enabled & EV_READ)) { event_del(&bev_ssl->bev.bev.ev_read); } } } static void consider_writing(struct bufferevent_openssl *bev_ssl) { int r; struct evbuffer *output = bev_ssl->bev.bev.output; struct evbuffer *target = NULL; struct event_watermark *wm = NULL; while (bev_ssl->read_blocked_on_write) { r = do_read(bev_ssl, 1024); /* XXXX 1024 is a hack */ if (r & OP_MADE_PROGRESS) { struct bufferevent *bev = &bev_ssl->bev.bev; struct evbuffer *input = bev->input; if (evbuffer_get_length(input) >= bev->wm_read.low) { _bufferevent_run_readcb(bev); } } if (r & (OP_ERR|OP_BLOCKED)) break; } if (bev_ssl->read_blocked_on_write) return; if (bev_ssl->underlying) { target = bev_ssl->underlying->output; wm = &bev_ssl->underlying->wm_write; } while ((bev_ssl->bev.bev.enabled & EV_WRITE) && (! bev_ssl->bev.write_suspended) && evbuffer_get_length(output) && (!target || (! wm->high || evbuffer_get_length(target) < wm->high))) { int n_to_write; if (wm && wm->high) n_to_write = wm->high - evbuffer_get_length(target); else n_to_write = WRITE_FRAME; r = do_write(bev_ssl, n_to_write); if (r & (OP_BLOCKED|OP_ERR)) break; } if (!bev_ssl->underlying) { if (evbuffer_get_length(output) == 0) { event_del(&bev_ssl->bev.bev.ev_write); } else if (bev_ssl->bev.write_suspended || !(bev_ssl->bev.bev.enabled & EV_WRITE)) { /* Should be redundant, but let's avoid busy-looping */ event_del(&bev_ssl->bev.bev.ev_write); } } } static void be_openssl_readcb(struct bufferevent *bev_base, void *ctx) { struct bufferevent_openssl *bev_ssl = ctx; consider_reading(bev_ssl); } static void be_openssl_writecb(struct bufferevent *bev_base, void *ctx) { struct bufferevent_openssl *bev_ssl = ctx; consider_writing(bev_ssl); } static void be_openssl_eventcb(struct bufferevent *bev_base, short what, void *ctx) { struct bufferevent_openssl *bev_ssl = ctx; int event = 0; if (what & BEV_EVENT_EOF) { if (bev_ssl->allow_dirty_shutdown) event = BEV_EVENT_EOF; else event = BEV_EVENT_ERROR; } else if (what & BEV_EVENT_TIMEOUT) { /* We sure didn't set this. Propagate it to the user. */ event = what; } else if (what & BEV_EVENT_ERROR) { /* An error occurred on the connection. Propagate it to the user. */ event = what; } else if (what & BEV_EVENT_CONNECTED) { /* Ignore it. We're saying SSL_connect() already, which will eat it. */ } if (event) _bufferevent_run_eventcb(&bev_ssl->bev.bev, event); } static void be_openssl_readeventcb(evutil_socket_t fd, short what, void *ptr) { struct bufferevent_openssl *bev_ssl = ptr; _bufferevent_incref_and_lock(&bev_ssl->bev.bev); if (what == EV_TIMEOUT) { _bufferevent_run_eventcb(&bev_ssl->bev.bev, BEV_EVENT_TIMEOUT|BEV_EVENT_READING); } else { consider_reading(bev_ssl); } _bufferevent_decref_and_unlock(&bev_ssl->bev.bev); } static void be_openssl_writeeventcb(evutil_socket_t fd, short what, void *ptr) { struct bufferevent_openssl *bev_ssl = ptr; _bufferevent_incref_and_lock(&bev_ssl->bev.bev); if (what == EV_TIMEOUT) { _bufferevent_run_eventcb(&bev_ssl->bev.bev, BEV_EVENT_TIMEOUT|BEV_EVENT_WRITING); } else { consider_writing(bev_ssl); } _bufferevent_decref_and_unlock(&bev_ssl->bev.bev); } static int set_open_callbacks(struct bufferevent_openssl *bev_ssl, evutil_socket_t fd) { if (bev_ssl->underlying) { bufferevent_setcb(bev_ssl->underlying, be_openssl_readcb, be_openssl_writecb, be_openssl_eventcb, bev_ssl); return 0; } else { struct bufferevent *bev = &bev_ssl->bev.bev; int rpending=0, wpending=0, r1=0, r2=0; if (fd < 0 && bev_ssl->fd_is_set) fd = event_get_fd(&bev->ev_read); if (bev_ssl->fd_is_set) { rpending = event_pending(&bev->ev_read, EV_READ, NULL); wpending = event_pending(&bev->ev_write, EV_WRITE, NULL); event_del(&bev->ev_read); event_del(&bev->ev_write); } event_assign(&bev->ev_read, bev->ev_base, fd, EV_READ|EV_PERSIST, be_openssl_readeventcb, bev_ssl); event_assign(&bev->ev_write, bev->ev_base, fd, EV_WRITE|EV_PERSIST, be_openssl_writeeventcb, bev_ssl); if (rpending) r1 = _bufferevent_add_event(&bev->ev_read, &bev->timeout_read); if (wpending) r2 = _bufferevent_add_event(&bev->ev_write, &bev->timeout_write); if (fd >= 0) { bev_ssl->fd_is_set = 1; } return (r1<0 || r2<0) ? -1 : 0; } } static int do_handshake(struct bufferevent_openssl *bev_ssl) { int r; switch (bev_ssl->state) { default: case BUFFEREVENT_SSL_OPEN: EVUTIL_ASSERT(0); return -1; case BUFFEREVENT_SSL_CONNECTING: case BUFFEREVENT_SSL_ACCEPTING: r = SSL_do_handshake(bev_ssl->ssl); break; } decrement_buckets(bev_ssl); if (r==1) { /* We're done! */ bev_ssl->state = BUFFEREVENT_SSL_OPEN; set_open_callbacks(bev_ssl, -1); /* XXXX handle failure */ /* Call do_read and do_write as needed */ bufferevent_enable(&bev_ssl->bev.bev, bev_ssl->bev.bev.enabled); _bufferevent_run_eventcb(&bev_ssl->bev.bev, BEV_EVENT_CONNECTED); return 1; } else { int err = SSL_get_error(bev_ssl->ssl, r); print_err(err); switch (err) { case SSL_ERROR_WANT_WRITE: if (!bev_ssl->underlying) { stop_reading(bev_ssl); return start_writing(bev_ssl); } return 0; case SSL_ERROR_WANT_READ: if (!bev_ssl->underlying) { stop_writing(bev_ssl); return start_reading(bev_ssl); } return 0; default: conn_closed(bev_ssl, err, r); return -1; } } } static void be_openssl_handshakecb(struct bufferevent *bev_base, void *ctx) { struct bufferevent_openssl *bev_ssl = ctx; do_handshake(bev_ssl);/* XXX handle failure */ } static void be_openssl_handshakeeventcb(evutil_socket_t fd, short what, void *ptr) { struct bufferevent_openssl *bev_ssl = ptr; _bufferevent_incref_and_lock(&bev_ssl->bev.bev); if (what & EV_TIMEOUT) { _bufferevent_run_eventcb(&bev_ssl->bev.bev, BEV_EVENT_TIMEOUT); } else do_handshake(bev_ssl);/* XXX handle failure */ _bufferevent_decref_and_unlock(&bev_ssl->bev.bev); } static int set_handshake_callbacks(struct bufferevent_openssl *bev_ssl, evutil_socket_t fd) { if (bev_ssl->underlying) { bufferevent_setcb(bev_ssl->underlying, be_openssl_handshakecb, be_openssl_handshakecb, be_openssl_eventcb, bev_ssl); return do_handshake(bev_ssl); } else { struct bufferevent *bev = &bev_ssl->bev.bev; int r1=0, r2=0; if (fd < 0 && bev_ssl->fd_is_set) fd = event_get_fd(&bev->ev_read); if (bev_ssl->fd_is_set) { event_del(&bev->ev_read); event_del(&bev->ev_write); } event_assign(&bev->ev_read, bev->ev_base, fd, EV_READ|EV_PERSIST, be_openssl_handshakeeventcb, bev_ssl); event_assign(&bev->ev_write, bev->ev_base, fd, EV_WRITE|EV_PERSIST, be_openssl_handshakeeventcb, bev_ssl); if (fd >= 0) { r1 = _bufferevent_add_event(&bev->ev_read, &bev->timeout_read); r2 = _bufferevent_add_event(&bev->ev_write, &bev->timeout_write); bev_ssl->fd_is_set = 1; } return (r1<0 || r2<0) ? -1 : 0; } } int bufferevent_ssl_renegotiate(struct bufferevent *bev) { struct bufferevent_openssl *bev_ssl = upcast(bev); if (!bev_ssl) return -1; if (SSL_renegotiate(bev_ssl->ssl) < 0) return -1; bev_ssl->state = BUFFEREVENT_SSL_CONNECTING; if (set_handshake_callbacks(bev_ssl, -1) < 0) return -1; if (!bev_ssl->underlying) return do_handshake(bev_ssl); return 0; } static void be_openssl_outbuf_cb(struct evbuffer *buf, const struct evbuffer_cb_info *cbinfo, void *arg) { struct bufferevent_openssl *bev_ssl = arg; int r = 0; /* XXX need to hold a reference here. */ if (cbinfo->n_added && bev_ssl->state == BUFFEREVENT_SSL_OPEN) { if (cbinfo->orig_size == 0) r = _bufferevent_add_event(&bev_ssl->bev.bev.ev_write, &bev_ssl->bev.bev.timeout_write); consider_writing(bev_ssl); } /* XXX Handle r < 0 */ (void)r; } static int be_openssl_enable(struct bufferevent *bev, short events) { struct bufferevent_openssl *bev_ssl = upcast(bev); int r1 = 0, r2 = 0; if (bev_ssl->state != BUFFEREVENT_SSL_OPEN) return 0; if (events & EV_READ) r1 = start_reading(bev_ssl); if (events & EV_WRITE) r2 = start_writing(bev_ssl); if (bev_ssl->underlying) { if (events & EV_READ) BEV_RESET_GENERIC_READ_TIMEOUT(bev); if (events & EV_WRITE) BEV_RESET_GENERIC_WRITE_TIMEOUT(bev); if (events & EV_READ) consider_reading(bev_ssl); if (events & EV_WRITE) consider_writing(bev_ssl); } return (r1 < 0 || r2 < 0) ? -1 : 0; } static int be_openssl_disable(struct bufferevent *bev, short events) { struct bufferevent_openssl *bev_ssl = upcast(bev); if (bev_ssl->state != BUFFEREVENT_SSL_OPEN) return 0; if (events & EV_READ) stop_reading(bev_ssl); if (events & EV_WRITE) stop_writing(bev_ssl); if (bev_ssl->underlying) { if (events & EV_READ) BEV_DEL_GENERIC_READ_TIMEOUT(bev); if (events & EV_WRITE) BEV_DEL_GENERIC_WRITE_TIMEOUT(bev); } return 0; } static void be_openssl_destruct(struct bufferevent *bev) { struct bufferevent_openssl *bev_ssl = upcast(bev); if (bev_ssl->underlying) { _bufferevent_del_generic_timeout_cbs(bev); } else { event_del(&bev->ev_read); event_del(&bev->ev_write); } if (bev_ssl->bev.options & BEV_OPT_CLOSE_ON_FREE) { if (bev_ssl->underlying) { if (BEV_UPCAST(bev_ssl->underlying)->refcnt < 2) { event_warnx("BEV_OPT_CLOSE_ON_FREE set on an " "bufferevent with too few references"); } else { bufferevent_free(bev_ssl->underlying); bev_ssl->underlying = NULL; } } else { evutil_socket_t fd = -1; BIO *bio = SSL_get_wbio(bev_ssl->ssl); if (bio) fd = BIO_get_fd(bio, NULL); if (fd >= 0) evutil_closesocket(fd); } SSL_free(bev_ssl->ssl); } else { if (bev_ssl->underlying) { if (bev_ssl->underlying->errorcb == be_openssl_eventcb) bufferevent_setcb(bev_ssl->underlying, NULL,NULL,NULL,NULL); bufferevent_unsuspend_read(bev_ssl->underlying, BEV_SUSPEND_FILT_READ); } } } static int be_openssl_adj_timeouts(struct bufferevent *bev) { struct bufferevent_openssl *bev_ssl = upcast(bev); if (bev_ssl->underlying) return _bufferevent_generic_adj_timeouts(bev); else { int r1=0, r2=0; if (event_pending(&bev->ev_read, EV_READ, NULL)) r1 = _bufferevent_add_event(&bev->ev_read, &bev->timeout_read); if (event_pending(&bev->ev_write, EV_WRITE, NULL)) r2 = _bufferevent_add_event(&bev->ev_write, &bev->timeout_write); return (r1<0 || r2<0) ? -1 : 0; } } static int be_openssl_flush(struct bufferevent *bufev, short iotype, enum bufferevent_flush_mode mode) { /* XXXX Implement this. */ return 0; } static int be_openssl_ctrl(struct bufferevent *bev, enum bufferevent_ctrl_op op, union bufferevent_ctrl_data *data) { struct bufferevent_openssl *bev_ssl = upcast(bev); switch (op) { case BEV_CTRL_SET_FD: if (bev_ssl->underlying) return -1; { BIO *bio; bio = BIO_new_socket(data->fd, 0); SSL_set_bio(bev_ssl->ssl, bio, bio); bev_ssl->fd_is_set = 1; } if (bev_ssl->state == BUFFEREVENT_SSL_OPEN) return set_open_callbacks(bev_ssl, data->fd); else { return set_handshake_callbacks(bev_ssl, data->fd); } case BEV_CTRL_GET_FD: if (bev_ssl->underlying) return -1; if (!bev_ssl->fd_is_set) return -1; data->fd = event_get_fd(&bev->ev_read); return 0; case BEV_CTRL_GET_UNDERLYING: if (!bev_ssl->underlying) return -1; data->ptr = bev_ssl->underlying; return 0; case BEV_CTRL_CANCEL_ALL: default: return -1; } } SSL * bufferevent_openssl_get_ssl(struct bufferevent *bufev) { struct bufferevent_openssl *bev_ssl = upcast(bufev); if (!bev_ssl) return NULL; return bev_ssl->ssl; } static struct bufferevent * bufferevent_openssl_new_impl(struct event_base *base, struct bufferevent *underlying, evutil_socket_t fd, SSL *ssl, enum bufferevent_ssl_state state, int options) { struct bufferevent_openssl *bev_ssl = NULL; struct bufferevent_private *bev_p = NULL; int tmp_options = options & ~BEV_OPT_THREADSAFE; if (underlying != NULL && fd >= 0) return NULL; /* Only one can be set. */ if (!(bev_ssl = mm_calloc(1, sizeof(struct bufferevent_openssl)))) goto err; bev_p = &bev_ssl->bev; if (bufferevent_init_common(bev_p, base, &bufferevent_ops_openssl, tmp_options) < 0) goto err; /* Don't explode if we decide to realloc a chunk we're writing from in * the output buffer. */ SSL_set_mode(ssl, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER); bev_ssl->underlying = underlying; bev_ssl->ssl = ssl; bev_ssl->outbuf_cb = evbuffer_add_cb(bev_p->bev.output, be_openssl_outbuf_cb, bev_ssl); if (options & BEV_OPT_THREADSAFE) bufferevent_enable_locking(&bev_ssl->bev.bev, NULL); if (underlying) { _bufferevent_init_generic_timeout_cbs(&bev_ssl->bev.bev); bufferevent_incref(underlying); } bev_ssl->state = state; bev_ssl->last_write = -1; init_bio_counts(bev_ssl); switch (state) { case BUFFEREVENT_SSL_ACCEPTING: SSL_set_accept_state(bev_ssl->ssl); if (set_handshake_callbacks(bev_ssl, fd) < 0) goto err; break; case BUFFEREVENT_SSL_CONNECTING: SSL_set_connect_state(bev_ssl->ssl); if (set_handshake_callbacks(bev_ssl, fd) < 0) goto err; break; case BUFFEREVENT_SSL_OPEN: if (set_open_callbacks(bev_ssl, fd) < 0) goto err; break; default: goto err; } if (underlying) { bufferevent_setwatermark(underlying, EV_READ, 0, 0); bufferevent_enable(underlying, EV_READ|EV_WRITE); if (state == BUFFEREVENT_SSL_OPEN) bufferevent_suspend_read(underlying, BEV_SUSPEND_FILT_READ); } else { bev_ssl->bev.bev.enabled = EV_READ|EV_WRITE; if (bev_ssl->fd_is_set) { if (state != BUFFEREVENT_SSL_OPEN) if (event_add(&bev_ssl->bev.bev.ev_read, NULL) < 0) goto err; if (event_add(&bev_ssl->bev.bev.ev_write, NULL) < 0) goto err; } } return &bev_ssl->bev.bev; err: if (bev_ssl) bufferevent_free(&bev_ssl->bev.bev); return NULL; } struct bufferevent * bufferevent_openssl_filter_new(struct event_base *base, struct bufferevent *underlying, SSL *ssl, enum bufferevent_ssl_state state, int options) { /* We don't tell the BIO to close the bufferevent; we do it ourselves * on be_openssl_destruct */ int close_flag = 0; /* options & BEV_OPT_CLOSE_ON_FREE; */ BIO *bio; if (!underlying) return NULL; if (!(bio = BIO_new_bufferevent(underlying, close_flag))) return NULL; SSL_set_bio(ssl, bio, bio); return bufferevent_openssl_new_impl( base, underlying, -1, ssl, state, options); } struct bufferevent * bufferevent_openssl_socket_new(struct event_base *base, evutil_socket_t fd, SSL *ssl, enum bufferevent_ssl_state state, int options) { /* Does the SSL already have an fd? */ BIO *bio = SSL_get_wbio(ssl); long have_fd = -1; if (bio) have_fd = BIO_get_fd(bio, NULL); if (have_fd >= 0) { /* The SSL is already configured with an fd. */ if (fd < 0) { /* We should learn the fd from the SSL. */ fd = (evutil_socket_t) have_fd; } else if (have_fd == (long)fd) { /* We already know the fd from the SSL; do nothing */ } else { /* We specified an fd different from that of the SSL. This is probably an error on our part. Fail. */ return NULL; } (void) BIO_set_close(bio, 0); } else { /* The SSL isn't configured with a BIO with an fd. */ if (fd >= 0) { /* ... and we have an fd we want to use. */ bio = BIO_new_socket(fd, 0); SSL_set_bio(ssl, bio, bio); } else { /* Leave the fd unset. */ } } return bufferevent_openssl_new_impl( base, NULL, fd, ssl, state, options); } unsigned long bufferevent_get_openssl_error(struct bufferevent *bev) { unsigned long err = 0; struct bufferevent_openssl *bev_ssl; BEV_LOCK(bev); bev_ssl = upcast(bev); if (bev_ssl && bev_ssl->n_errors) { err = bev_ssl->errors[--bev_ssl->n_errors]; } BEV_UNLOCK(bev); return err; } dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent_pair.c000644 000765 000024 00000021214 13037731714 024023 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos, Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #ifdef WIN32 #include #endif #include "event2/event-config.h" #include "event2/util.h" #include "event2/buffer.h" #include "event2/bufferevent.h" #include "event2/bufferevent_struct.h" #include "event2/event.h" #include "defer-internal.h" #include "bufferevent-internal.h" #include "mm-internal.h" #include "util-internal.h" struct bufferevent_pair { struct bufferevent_private bev; struct bufferevent_pair *partner; }; /* Given a bufferevent that's really a bev part of a bufferevent_pair, * return that bufferevent_filtered. Returns NULL otherwise.*/ static inline struct bufferevent_pair * upcast(struct bufferevent *bev) { struct bufferevent_pair *bev_p; if (bev->be_ops != &bufferevent_ops_pair) return NULL; bev_p = EVUTIL_UPCAST(bev, struct bufferevent_pair, bev.bev); EVUTIL_ASSERT(bev_p->bev.bev.be_ops == &bufferevent_ops_pair); return bev_p; } #define downcast(bev_pair) (&(bev_pair)->bev.bev) static inline void incref_and_lock(struct bufferevent *b) { struct bufferevent_pair *bevp; _bufferevent_incref_and_lock(b); bevp = upcast(b); if (bevp->partner) _bufferevent_incref_and_lock(downcast(bevp->partner)); } static inline void decref_and_unlock(struct bufferevent *b) { struct bufferevent_pair *bevp = upcast(b); if (bevp->partner) _bufferevent_decref_and_unlock(downcast(bevp->partner)); _bufferevent_decref_and_unlock(b); } /* XXX Handle close */ static void be_pair_outbuf_cb(struct evbuffer *, const struct evbuffer_cb_info *, void *); static struct bufferevent_pair * bufferevent_pair_elt_new(struct event_base *base, int options) { struct bufferevent_pair *bufev; if (! (bufev = mm_calloc(1, sizeof(struct bufferevent_pair)))) return NULL; if (bufferevent_init_common(&bufev->bev, base, &bufferevent_ops_pair, options)) { mm_free(bufev); return NULL; } if (!evbuffer_add_cb(bufev->bev.bev.output, be_pair_outbuf_cb, bufev)) { bufferevent_free(downcast(bufev)); return NULL; } _bufferevent_init_generic_timeout_cbs(&bufev->bev.bev); return bufev; } int bufferevent_pair_new(struct event_base *base, int options, struct bufferevent *pair[2]) { struct bufferevent_pair *bufev1 = NULL, *bufev2 = NULL; int tmp_options; options |= BEV_OPT_DEFER_CALLBACKS; tmp_options = options & ~BEV_OPT_THREADSAFE; bufev1 = bufferevent_pair_elt_new(base, options); if (!bufev1) return -1; bufev2 = bufferevent_pair_elt_new(base, tmp_options); if (!bufev2) { bufferevent_free(downcast(bufev1)); return -1; } if (options & BEV_OPT_THREADSAFE) { /*XXXX check return */ bufferevent_enable_locking(downcast(bufev2), bufev1->bev.lock); } bufev1->partner = bufev2; bufev2->partner = bufev1; evbuffer_freeze(downcast(bufev1)->input, 0); evbuffer_freeze(downcast(bufev1)->output, 1); evbuffer_freeze(downcast(bufev2)->input, 0); evbuffer_freeze(downcast(bufev2)->output, 1); pair[0] = downcast(bufev1); pair[1] = downcast(bufev2); return 0; } static void be_pair_transfer(struct bufferevent *src, struct bufferevent *dst, int ignore_wm) { size_t src_size, dst_size; size_t n; evbuffer_unfreeze(src->output, 1); evbuffer_unfreeze(dst->input, 0); if (dst->wm_read.high) { dst_size = evbuffer_get_length(dst->input); if (dst_size < dst->wm_read.high) { n = dst->wm_read.high - dst_size; evbuffer_remove_buffer(src->output, dst->input, n); } else { if (!ignore_wm) goto done; n = evbuffer_get_length(src->output); evbuffer_add_buffer(dst->input, src->output); } } else { n = evbuffer_get_length(src->output); evbuffer_add_buffer(dst->input, src->output); } if (n) { BEV_RESET_GENERIC_READ_TIMEOUT(dst); if (evbuffer_get_length(dst->output)) BEV_RESET_GENERIC_WRITE_TIMEOUT(dst); else BEV_DEL_GENERIC_WRITE_TIMEOUT(dst); } src_size = evbuffer_get_length(src->output); dst_size = evbuffer_get_length(dst->input); if (dst_size >= dst->wm_read.low) { _bufferevent_run_readcb(dst); } if (src_size <= src->wm_write.low) { _bufferevent_run_writecb(src); } done: evbuffer_freeze(src->output, 1); evbuffer_freeze(dst->input, 0); } static inline int be_pair_wants_to_talk(struct bufferevent_pair *src, struct bufferevent_pair *dst) { return (downcast(src)->enabled & EV_WRITE) && (downcast(dst)->enabled & EV_READ) && !dst->bev.read_suspended && evbuffer_get_length(downcast(src)->output); } static void be_pair_outbuf_cb(struct evbuffer *outbuf, const struct evbuffer_cb_info *info, void *arg) { struct bufferevent_pair *bev_pair = arg; struct bufferevent_pair *partner = bev_pair->partner; incref_and_lock(downcast(bev_pair)); if (info->n_added > info->n_deleted && partner) { /* We got more data. If the other side's reading, then hand it over. */ if (be_pair_wants_to_talk(bev_pair, partner)) { be_pair_transfer(downcast(bev_pair), downcast(partner), 0); } } decref_and_unlock(downcast(bev_pair)); } static int be_pair_enable(struct bufferevent *bufev, short events) { struct bufferevent_pair *bev_p = upcast(bufev); struct bufferevent_pair *partner = bev_p->partner; incref_and_lock(bufev); if (events & EV_READ) { BEV_RESET_GENERIC_READ_TIMEOUT(bufev); } if ((events & EV_WRITE) && evbuffer_get_length(bufev->output)) BEV_RESET_GENERIC_WRITE_TIMEOUT(bufev); /* We're starting to read! Does the other side have anything to write?*/ if ((events & EV_READ) && partner && be_pair_wants_to_talk(partner, bev_p)) { be_pair_transfer(downcast(partner), bufev, 0); } /* We're starting to write! Does the other side want to read? */ if ((events & EV_WRITE) && partner && be_pair_wants_to_talk(bev_p, partner)) { be_pair_transfer(bufev, downcast(partner), 0); } decref_and_unlock(bufev); return 0; } static int be_pair_disable(struct bufferevent *bev, short events) { if (events & EV_READ) { BEV_DEL_GENERIC_READ_TIMEOUT(bev); } if (events & EV_WRITE) BEV_DEL_GENERIC_WRITE_TIMEOUT(bev); return 0; } static void be_pair_destruct(struct bufferevent *bev) { struct bufferevent_pair *bev_p = upcast(bev); if (bev_p->partner) { bev_p->partner->partner = NULL; bev_p->partner = NULL; } _bufferevent_del_generic_timeout_cbs(bev); } static int be_pair_flush(struct bufferevent *bev, short iotype, enum bufferevent_flush_mode mode) { struct bufferevent_pair *bev_p = upcast(bev); struct bufferevent *partner; incref_and_lock(bev); if (!bev_p->partner) return -1; partner = downcast(bev_p->partner); if (mode == BEV_NORMAL) return 0; if ((iotype & EV_READ) != 0) be_pair_transfer(partner, bev, 1); if ((iotype & EV_WRITE) != 0) be_pair_transfer(bev, partner, 1); if (mode == BEV_FINISHED) { _bufferevent_run_eventcb(partner, iotype|BEV_EVENT_EOF); } decref_and_unlock(bev); return 0; } struct bufferevent * bufferevent_pair_get_partner(struct bufferevent *bev) { struct bufferevent_pair *bev_p; struct bufferevent *partner = NULL; bev_p = upcast(bev); if (! bev_p) return NULL; incref_and_lock(bev); if (bev_p->partner) partner = downcast(bev_p->partner); decref_and_unlock(bev); return partner; } const struct bufferevent_ops bufferevent_ops_pair = { "pair_elt", evutil_offsetof(struct bufferevent_pair, bev.bev), be_pair_enable, be_pair_disable, be_pair_destruct, _bufferevent_generic_adj_timeouts, be_pair_flush, NULL, /* ctrl */ }; dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent_ratelim.c000644 000765 000024 00000067551 13037731714 024543 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * Copyright (c) 2002-2006 Niels Provos * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include "event2/event.h" #include "event2/event_struct.h" #include "event2/util.h" #include "event2/bufferevent.h" #include "event2/bufferevent_struct.h" #include "event2/buffer.h" #include "ratelim-internal.h" #include "bufferevent-internal.h" #include "mm-internal.h" #include "util-internal.h" #include "event-internal.h" int ev_token_bucket_init(struct ev_token_bucket *bucket, const struct ev_token_bucket_cfg *cfg, ev_uint32_t current_tick, int reinitialize) { if (reinitialize) { /* on reinitialization, we only clip downwards, since we've already used who-knows-how-much bandwidth this tick. We leave "last_updated" as it is; the next update will add the appropriate amount of bandwidth to the bucket. */ if (bucket->read_limit > (ev_int64_t) cfg->read_maximum) bucket->read_limit = cfg->read_maximum; if (bucket->write_limit > (ev_int64_t) cfg->write_maximum) bucket->write_limit = cfg->write_maximum; } else { bucket->read_limit = cfg->read_rate; bucket->write_limit = cfg->write_rate; bucket->last_updated = current_tick; } return 0; } int ev_token_bucket_update(struct ev_token_bucket *bucket, const struct ev_token_bucket_cfg *cfg, ev_uint32_t current_tick) { /* It's okay if the tick number overflows, since we'll just * wrap around when we do the unsigned substraction. */ unsigned n_ticks = current_tick - bucket->last_updated; /* Make sure some ticks actually happened, and that time didn't * roll back. */ if (n_ticks == 0 || n_ticks > INT_MAX) return 0; /* Naively, we would say bucket->limit += n_ticks * cfg->rate; if (bucket->limit > cfg->maximum) bucket->limit = cfg->maximum; But we're worried about overflow, so we do it like this: */ if ((cfg->read_maximum - bucket->read_limit) / n_ticks < cfg->read_rate) bucket->read_limit = cfg->read_maximum; else bucket->read_limit += n_ticks * cfg->read_rate; if ((cfg->write_maximum - bucket->write_limit) / n_ticks < cfg->write_rate) bucket->write_limit = cfg->write_maximum; else bucket->write_limit += n_ticks * cfg->write_rate; bucket->last_updated = current_tick; return 1; } static inline void bufferevent_update_buckets(struct bufferevent_private *bev) { /* Must hold lock on bev. */ struct timeval now; unsigned tick; event_base_gettimeofday_cached(bev->bev.ev_base, &now); tick = ev_token_bucket_get_tick(&now, bev->rate_limiting->cfg); if (tick != bev->rate_limiting->limit.last_updated) ev_token_bucket_update(&bev->rate_limiting->limit, bev->rate_limiting->cfg, tick); } ev_uint32_t ev_token_bucket_get_tick(const struct timeval *tv, const struct ev_token_bucket_cfg *cfg) { /* This computation uses two multiplies and a divide. We could do * fewer if we knew that the tick length was an integer number of * seconds, or if we knew it divided evenly into a second. We should * investigate that more. */ /* We cast to an ev_uint64_t first, since we don't want to overflow * before we do the final divide. */ ev_uint64_t msec = (ev_uint64_t)tv->tv_sec * 1000 + tv->tv_usec / 1000; return (unsigned)(msec / cfg->msec_per_tick); } struct ev_token_bucket_cfg * ev_token_bucket_cfg_new(size_t read_rate, size_t read_burst, size_t write_rate, size_t write_burst, const struct timeval *tick_len) { struct ev_token_bucket_cfg *r; struct timeval g; if (! tick_len) { g.tv_sec = 1; g.tv_usec = 0; tick_len = &g; } if (read_rate > read_burst || write_rate > write_burst || read_rate < 1 || write_rate < 1) return NULL; if (read_rate > EV_RATE_LIMIT_MAX || write_rate > EV_RATE_LIMIT_MAX || read_burst > EV_RATE_LIMIT_MAX || write_burst > EV_RATE_LIMIT_MAX) return NULL; r = mm_calloc(1, sizeof(struct ev_token_bucket_cfg)); if (!r) return NULL; r->read_rate = read_rate; r->write_rate = write_rate; r->read_maximum = read_burst; r->write_maximum = write_burst; memcpy(&r->tick_timeout, tick_len, sizeof(struct timeval)); r->msec_per_tick = (tick_len->tv_sec * 1000) + (tick_len->tv_usec & COMMON_TIMEOUT_MICROSECONDS_MASK)/1000; return r; } void ev_token_bucket_cfg_free(struct ev_token_bucket_cfg *cfg) { mm_free(cfg); } /* No matter how big our bucket gets, don't try to read more than this * much in a single read operation. */ #define MAX_TO_READ_EVER 16384 /* No matter how big our bucket gets, don't try to write more than this * much in a single write operation. */ #define MAX_TO_WRITE_EVER 16384 #define LOCK_GROUP(g) EVLOCK_LOCK((g)->lock, 0) #define UNLOCK_GROUP(g) EVLOCK_UNLOCK((g)->lock, 0) static int _bev_group_suspend_reading(struct bufferevent_rate_limit_group *g); static int _bev_group_suspend_writing(struct bufferevent_rate_limit_group *g); static void _bev_group_unsuspend_reading(struct bufferevent_rate_limit_group *g); static void _bev_group_unsuspend_writing(struct bufferevent_rate_limit_group *g); /** Helper: figure out the maximum amount we should write if is_write, or the maximum amount we should read if is_read. Return that maximum, or 0 if our bucket is wholly exhausted. */ static inline ev_ssize_t _bufferevent_get_rlim_max(struct bufferevent_private *bev, int is_write) { /* needs lock on bev. */ ev_ssize_t max_so_far = is_write?MAX_TO_WRITE_EVER:MAX_TO_READ_EVER; #define LIM(x) \ (is_write ? (x).write_limit : (x).read_limit) #define GROUP_SUSPENDED(g) \ (is_write ? (g)->write_suspended : (g)->read_suspended) /* Sets max_so_far to MIN(x, max_so_far) */ #define CLAMPTO(x) \ do { \ if (max_so_far > (x)) \ max_so_far = (x); \ } while (0); if (!bev->rate_limiting) return max_so_far; /* If rate-limiting is enabled at all, update the appropriate bucket, and take the smaller of our rate limit and the group rate limit. */ if (bev->rate_limiting->cfg) { bufferevent_update_buckets(bev); max_so_far = LIM(bev->rate_limiting->limit); } if (bev->rate_limiting->group) { struct bufferevent_rate_limit_group *g = bev->rate_limiting->group; ev_ssize_t share; LOCK_GROUP(g); if (GROUP_SUSPENDED(g)) { /* We can get here if we failed to lock this * particular bufferevent while suspending the whole * group. */ if (is_write) bufferevent_suspend_write(&bev->bev, BEV_SUSPEND_BW_GROUP); else bufferevent_suspend_read(&bev->bev, BEV_SUSPEND_BW_GROUP); share = 0; } else { /* XXXX probably we should divide among the active * members, not the total members. */ share = LIM(g->rate_limit) / g->n_members; if (share < g->min_share) share = g->min_share; } UNLOCK_GROUP(g); CLAMPTO(share); } if (max_so_far < 0) max_so_far = 0; return max_so_far; } ev_ssize_t _bufferevent_get_read_max(struct bufferevent_private *bev) { return _bufferevent_get_rlim_max(bev, 0); } ev_ssize_t _bufferevent_get_write_max(struct bufferevent_private *bev) { return _bufferevent_get_rlim_max(bev, 1); } int _bufferevent_decrement_read_buckets(struct bufferevent_private *bev, ev_ssize_t bytes) { /* XXXXX Make sure all users of this function check its return value */ int r = 0; /* need to hold lock on bev */ if (!bev->rate_limiting) return 0; if (bev->rate_limiting->cfg) { bev->rate_limiting->limit.read_limit -= bytes; if (bev->rate_limiting->limit.read_limit <= 0) { bufferevent_suspend_read(&bev->bev, BEV_SUSPEND_BW); if (event_add(&bev->rate_limiting->refill_bucket_event, &bev->rate_limiting->cfg->tick_timeout) < 0) r = -1; } else if (bev->read_suspended & BEV_SUSPEND_BW) { if (!(bev->write_suspended & BEV_SUSPEND_BW)) event_del(&bev->rate_limiting->refill_bucket_event); bufferevent_unsuspend_read(&bev->bev, BEV_SUSPEND_BW); } } if (bev->rate_limiting->group) { LOCK_GROUP(bev->rate_limiting->group); bev->rate_limiting->group->rate_limit.read_limit -= bytes; bev->rate_limiting->group->total_read += bytes; if (bev->rate_limiting->group->rate_limit.read_limit <= 0) { _bev_group_suspend_reading(bev->rate_limiting->group); } else if (bev->rate_limiting->group->read_suspended) { _bev_group_unsuspend_reading(bev->rate_limiting->group); } UNLOCK_GROUP(bev->rate_limiting->group); } return r; } int _bufferevent_decrement_write_buckets(struct bufferevent_private *bev, ev_ssize_t bytes) { /* XXXXX Make sure all users of this function check its return value */ int r = 0; /* need to hold lock */ if (!bev->rate_limiting) return 0; if (bev->rate_limiting->cfg) { bev->rate_limiting->limit.write_limit -= bytes; if (bev->rate_limiting->limit.write_limit <= 0) { bufferevent_suspend_write(&bev->bev, BEV_SUSPEND_BW); if (event_add(&bev->rate_limiting->refill_bucket_event, &bev->rate_limiting->cfg->tick_timeout) < 0) r = -1; } else if (bev->write_suspended & BEV_SUSPEND_BW) { if (!(bev->read_suspended & BEV_SUSPEND_BW)) event_del(&bev->rate_limiting->refill_bucket_event); bufferevent_unsuspend_write(&bev->bev, BEV_SUSPEND_BW); } } if (bev->rate_limiting->group) { LOCK_GROUP(bev->rate_limiting->group); bev->rate_limiting->group->rate_limit.write_limit -= bytes; bev->rate_limiting->group->total_written += bytes; if (bev->rate_limiting->group->rate_limit.write_limit <= 0) { _bev_group_suspend_writing(bev->rate_limiting->group); } else if (bev->rate_limiting->group->write_suspended) { _bev_group_unsuspend_writing(bev->rate_limiting->group); } UNLOCK_GROUP(bev->rate_limiting->group); } return r; } /** Stop reading on every bufferevent in g */ static int _bev_group_suspend_reading(struct bufferevent_rate_limit_group *g) { /* Needs group lock */ struct bufferevent_private *bev; g->read_suspended = 1; g->pending_unsuspend_read = 0; /* Note that in this loop we call EVLOCK_TRY_LOCK instead of BEV_LOCK, to prevent a deadlock. (Ordinarily, the group lock nests inside the bufferevent locks. If we are unable to lock any individual bufferevent, it will find out later when it looks at its limit and sees that its group is suspended. */ TAILQ_FOREACH(bev, &g->members, rate_limiting->next_in_group) { if (EVLOCK_TRY_LOCK(bev->lock)) { bufferevent_suspend_read(&bev->bev, BEV_SUSPEND_BW_GROUP); EVLOCK_UNLOCK(bev->lock, 0); } } return 0; } /** Stop writing on every bufferevent in g */ static int _bev_group_suspend_writing(struct bufferevent_rate_limit_group *g) { /* Needs group lock */ struct bufferevent_private *bev; g->write_suspended = 1; g->pending_unsuspend_write = 0; TAILQ_FOREACH(bev, &g->members, rate_limiting->next_in_group) { if (EVLOCK_TRY_LOCK(bev->lock)) { bufferevent_suspend_write(&bev->bev, BEV_SUSPEND_BW_GROUP); EVLOCK_UNLOCK(bev->lock, 0); } } return 0; } /** Timer callback invoked on a single bufferevent with one or more exhausted buckets when they are ready to refill. */ static void _bev_refill_callback(evutil_socket_t fd, short what, void *arg) { unsigned tick; struct timeval now; struct bufferevent_private *bev = arg; int again = 0; BEV_LOCK(&bev->bev); if (!bev->rate_limiting || !bev->rate_limiting->cfg) { BEV_UNLOCK(&bev->bev); return; } /* First, update the bucket */ event_base_gettimeofday_cached(bev->bev.ev_base, &now); tick = ev_token_bucket_get_tick(&now, bev->rate_limiting->cfg); ev_token_bucket_update(&bev->rate_limiting->limit, bev->rate_limiting->cfg, tick); /* Now unsuspend any read/write operations as appropriate. */ if ((bev->read_suspended & BEV_SUSPEND_BW)) { if (bev->rate_limiting->limit.read_limit > 0) bufferevent_unsuspend_read(&bev->bev, BEV_SUSPEND_BW); else again = 1; } if ((bev->write_suspended & BEV_SUSPEND_BW)) { if (bev->rate_limiting->limit.write_limit > 0) bufferevent_unsuspend_write(&bev->bev, BEV_SUSPEND_BW); else again = 1; } if (again) { /* One or more of the buckets may need another refill if they started negative. XXXX if we need to be quiet for more ticks, we should maybe figure out what timeout we really want. */ /* XXXX Handle event_add failure somehow */ event_add(&bev->rate_limiting->refill_bucket_event, &bev->rate_limiting->cfg->tick_timeout); } BEV_UNLOCK(&bev->bev); } /** Helper: grab a random element from a bufferevent group. */ static struct bufferevent_private * _bev_group_random_element(struct bufferevent_rate_limit_group *group) { int which; struct bufferevent_private *bev; /* requires group lock */ if (!group->n_members) return NULL; EVUTIL_ASSERT(! TAILQ_EMPTY(&group->members)); which = _evutil_weakrand() % group->n_members; bev = TAILQ_FIRST(&group->members); while (which--) bev = TAILQ_NEXT(bev, rate_limiting->next_in_group); return bev; } /** Iterate over the elements of a rate-limiting group 'g' with a random starting point, assigning each to the variable 'bev', and executing the block 'block'. We do this in a half-baked effort to get fairness among group members. XXX Round-robin or some kind of priority queue would be even more fair. */ #define FOREACH_RANDOM_ORDER(block) \ do { \ first = _bev_group_random_element(g); \ for (bev = first; bev != TAILQ_END(&g->members); \ bev = TAILQ_NEXT(bev, rate_limiting->next_in_group)) { \ block ; \ } \ for (bev = TAILQ_FIRST(&g->members); bev && bev != first; \ bev = TAILQ_NEXT(bev, rate_limiting->next_in_group)) { \ block ; \ } \ } while (0) static void _bev_group_unsuspend_reading(struct bufferevent_rate_limit_group *g) { int again = 0; struct bufferevent_private *bev, *first; g->read_suspended = 0; FOREACH_RANDOM_ORDER({ if (EVLOCK_TRY_LOCK(bev->lock)) { bufferevent_unsuspend_read(&bev->bev, BEV_SUSPEND_BW_GROUP); EVLOCK_UNLOCK(bev->lock, 0); } else { again = 1; } }); g->pending_unsuspend_read = again; } static void _bev_group_unsuspend_writing(struct bufferevent_rate_limit_group *g) { int again = 0; struct bufferevent_private *bev, *first; g->write_suspended = 0; FOREACH_RANDOM_ORDER({ if (EVLOCK_TRY_LOCK(bev->lock)) { bufferevent_unsuspend_write(&bev->bev, BEV_SUSPEND_BW_GROUP); EVLOCK_UNLOCK(bev->lock, 0); } else { again = 1; } }); g->pending_unsuspend_write = again; } /** Callback invoked every tick to add more elements to the group bucket and unsuspend group members as needed. */ static void _bev_group_refill_callback(evutil_socket_t fd, short what, void *arg) { struct bufferevent_rate_limit_group *g = arg; unsigned tick; struct timeval now; event_base_gettimeofday_cached(event_get_base(&g->master_refill_event), &now); LOCK_GROUP(g); tick = ev_token_bucket_get_tick(&now, &g->rate_limit_cfg); ev_token_bucket_update(&g->rate_limit, &g->rate_limit_cfg, tick); if (g->pending_unsuspend_read || (g->read_suspended && (g->rate_limit.read_limit >= g->min_share))) { _bev_group_unsuspend_reading(g); } if (g->pending_unsuspend_write || (g->write_suspended && (g->rate_limit.write_limit >= g->min_share))){ _bev_group_unsuspend_writing(g); } /* XXXX Rather than waiting to the next tick to unsuspend stuff * with pending_unsuspend_write/read, we should do it on the * next iteration of the mainloop. */ UNLOCK_GROUP(g); } int bufferevent_set_rate_limit(struct bufferevent *bev, struct ev_token_bucket_cfg *cfg) { struct bufferevent_private *bevp = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); int r = -1; struct bufferevent_rate_limit *rlim; struct timeval now; ev_uint32_t tick; int reinit = 0, suspended = 0; /* XXX reference-count cfg */ BEV_LOCK(bev); if (cfg == NULL) { if (bevp->rate_limiting) { rlim = bevp->rate_limiting; rlim->cfg = NULL; bufferevent_unsuspend_read(bev, BEV_SUSPEND_BW); bufferevent_unsuspend_write(bev, BEV_SUSPEND_BW); if (event_initialized(&rlim->refill_bucket_event)) event_del(&rlim->refill_bucket_event); } r = 0; goto done; } event_base_gettimeofday_cached(bev->ev_base, &now); tick = ev_token_bucket_get_tick(&now, cfg); if (bevp->rate_limiting && bevp->rate_limiting->cfg == cfg) { /* no-op */ r = 0; goto done; } if (bevp->rate_limiting == NULL) { rlim = mm_calloc(1, sizeof(struct bufferevent_rate_limit)); if (!rlim) goto done; bevp->rate_limiting = rlim; } else { rlim = bevp->rate_limiting; } reinit = rlim->cfg != NULL; rlim->cfg = cfg; ev_token_bucket_init(&rlim->limit, cfg, tick, reinit); if (reinit) { EVUTIL_ASSERT(event_initialized(&rlim->refill_bucket_event)); event_del(&rlim->refill_bucket_event); } evtimer_assign(&rlim->refill_bucket_event, bev->ev_base, _bev_refill_callback, bevp); if (rlim->limit.read_limit > 0) { bufferevent_unsuspend_read(bev, BEV_SUSPEND_BW); } else { bufferevent_suspend_read(bev, BEV_SUSPEND_BW); suspended=1; } if (rlim->limit.write_limit > 0) { bufferevent_unsuspend_write(bev, BEV_SUSPEND_BW); } else { bufferevent_suspend_write(bev, BEV_SUSPEND_BW); suspended = 1; } if (suspended) event_add(&rlim->refill_bucket_event, &cfg->tick_timeout); r = 0; done: BEV_UNLOCK(bev); return r; } struct bufferevent_rate_limit_group * bufferevent_rate_limit_group_new(struct event_base *base, const struct ev_token_bucket_cfg *cfg) { struct bufferevent_rate_limit_group *g; struct timeval now; ev_uint32_t tick; event_base_gettimeofday_cached(base, &now); tick = ev_token_bucket_get_tick(&now, cfg); g = mm_calloc(1, sizeof(struct bufferevent_rate_limit_group)); if (!g) return NULL; memcpy(&g->rate_limit_cfg, cfg, sizeof(g->rate_limit_cfg)); TAILQ_INIT(&g->members); ev_token_bucket_init(&g->rate_limit, cfg, tick, 0); event_assign(&g->master_refill_event, base, -1, EV_PERSIST, _bev_group_refill_callback, g); /*XXXX handle event_add failure */ event_add(&g->master_refill_event, &cfg->tick_timeout); EVTHREAD_ALLOC_LOCK(g->lock, EVTHREAD_LOCKTYPE_RECURSIVE); bufferevent_rate_limit_group_set_min_share(g, 64); return g; } int bufferevent_rate_limit_group_set_cfg( struct bufferevent_rate_limit_group *g, const struct ev_token_bucket_cfg *cfg) { int same_tick; if (!g || !cfg) return -1; LOCK_GROUP(g); same_tick = evutil_timercmp( &g->rate_limit_cfg.tick_timeout, &cfg->tick_timeout, ==); memcpy(&g->rate_limit_cfg, cfg, sizeof(g->rate_limit_cfg)); if (g->rate_limit.read_limit > (ev_ssize_t)cfg->read_maximum) g->rate_limit.read_limit = cfg->read_maximum; if (g->rate_limit.write_limit > (ev_ssize_t)cfg->write_maximum) g->rate_limit.write_limit = cfg->write_maximum; if (!same_tick) { /* This can cause a hiccup in the schedule */ event_add(&g->master_refill_event, &cfg->tick_timeout); } /* The new limits might force us to adjust min_share differently. */ bufferevent_rate_limit_group_set_min_share(g, g->configured_min_share); UNLOCK_GROUP(g); return 0; } int bufferevent_rate_limit_group_set_min_share( struct bufferevent_rate_limit_group *g, size_t share) { if (share > EV_SSIZE_MAX) return -1; g->configured_min_share = share; /* Can't set share to less than the one-tick maximum. IOW, at steady * state, at least one connection can go per tick. */ if (share > g->rate_limit_cfg.read_rate) share = g->rate_limit_cfg.read_rate; if (share > g->rate_limit_cfg.write_rate) share = g->rate_limit_cfg.write_rate; g->min_share = share; return 0; } void bufferevent_rate_limit_group_free(struct bufferevent_rate_limit_group *g) { LOCK_GROUP(g); EVUTIL_ASSERT(0 == g->n_members); event_del(&g->master_refill_event); UNLOCK_GROUP(g); EVTHREAD_FREE_LOCK(g->lock, EVTHREAD_LOCKTYPE_RECURSIVE); mm_free(g); } int bufferevent_add_to_rate_limit_group(struct bufferevent *bev, struct bufferevent_rate_limit_group *g) { int wsuspend, rsuspend; struct bufferevent_private *bevp = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); BEV_LOCK(bev); if (!bevp->rate_limiting) { struct bufferevent_rate_limit *rlim; rlim = mm_calloc(1, sizeof(struct bufferevent_rate_limit)); if (!rlim) { BEV_UNLOCK(bev); return -1; } evtimer_assign(&rlim->refill_bucket_event, bev->ev_base, _bev_refill_callback, bevp); bevp->rate_limiting = rlim; } if (bevp->rate_limiting->group == g) { BEV_UNLOCK(bev); return 0; } if (bevp->rate_limiting->group) bufferevent_remove_from_rate_limit_group(bev); LOCK_GROUP(g); bevp->rate_limiting->group = g; ++g->n_members; TAILQ_INSERT_TAIL(&g->members, bevp, rate_limiting->next_in_group); rsuspend = g->read_suspended; wsuspend = g->write_suspended; UNLOCK_GROUP(g); if (rsuspend) bufferevent_suspend_read(bev, BEV_SUSPEND_BW_GROUP); if (wsuspend) bufferevent_suspend_write(bev, BEV_SUSPEND_BW_GROUP); BEV_UNLOCK(bev); return 0; } int bufferevent_remove_from_rate_limit_group(struct bufferevent *bev) { return bufferevent_remove_from_rate_limit_group_internal(bev, 1); } int bufferevent_remove_from_rate_limit_group_internal(struct bufferevent *bev, int unsuspend) { struct bufferevent_private *bevp = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); BEV_LOCK(bev); if (bevp->rate_limiting && bevp->rate_limiting->group) { struct bufferevent_rate_limit_group *g = bevp->rate_limiting->group; LOCK_GROUP(g); bevp->rate_limiting->group = NULL; --g->n_members; TAILQ_REMOVE(&g->members, bevp, rate_limiting->next_in_group); UNLOCK_GROUP(g); } if (unsuspend) { bufferevent_unsuspend_read(bev, BEV_SUSPEND_BW_GROUP); bufferevent_unsuspend_write(bev, BEV_SUSPEND_BW_GROUP); } BEV_UNLOCK(bev); return 0; } /* === * API functions to expose rate limits. * * Don't use these from inside Libevent; they're meant to be for use by * the program. * === */ /* Mostly you don't want to use this function from inside libevent; * _bufferevent_get_read_max() is more likely what you want*/ ev_ssize_t bufferevent_get_read_limit(struct bufferevent *bev) { ev_ssize_t r; struct bufferevent_private *bevp; BEV_LOCK(bev); bevp = BEV_UPCAST(bev); if (bevp->rate_limiting && bevp->rate_limiting->cfg) { bufferevent_update_buckets(bevp); r = bevp->rate_limiting->limit.read_limit; } else { r = EV_SSIZE_MAX; } BEV_UNLOCK(bev); return r; } /* Mostly you don't want to use this function from inside libevent; * _bufferevent_get_write_max() is more likely what you want*/ ev_ssize_t bufferevent_get_write_limit(struct bufferevent *bev) { ev_ssize_t r; struct bufferevent_private *bevp; BEV_LOCK(bev); bevp = BEV_UPCAST(bev); if (bevp->rate_limiting && bevp->rate_limiting->cfg) { bufferevent_update_buckets(bevp); r = bevp->rate_limiting->limit.write_limit; } else { r = EV_SSIZE_MAX; } BEV_UNLOCK(bev); return r; } ev_ssize_t bufferevent_get_max_to_read(struct bufferevent *bev) { ev_ssize_t r; BEV_LOCK(bev); r = _bufferevent_get_read_max(BEV_UPCAST(bev)); BEV_UNLOCK(bev); return r; } ev_ssize_t bufferevent_get_max_to_write(struct bufferevent *bev) { ev_ssize_t r; BEV_LOCK(bev); r = _bufferevent_get_write_max(BEV_UPCAST(bev)); BEV_UNLOCK(bev); return r; } /* Mostly you don't want to use this function from inside libevent; * _bufferevent_get_read_max() is more likely what you want*/ ev_ssize_t bufferevent_rate_limit_group_get_read_limit( struct bufferevent_rate_limit_group *grp) { ev_ssize_t r; LOCK_GROUP(grp); r = grp->rate_limit.read_limit; UNLOCK_GROUP(grp); return r; } /* Mostly you don't want to use this function from inside libevent; * _bufferevent_get_write_max() is more likely what you want. */ ev_ssize_t bufferevent_rate_limit_group_get_write_limit( struct bufferevent_rate_limit_group *grp) { ev_ssize_t r; LOCK_GROUP(grp); r = grp->rate_limit.write_limit; UNLOCK_GROUP(grp); return r; } int bufferevent_decrement_read_limit(struct bufferevent *bev, ev_ssize_t decr) { int r = 0; ev_ssize_t old_limit, new_limit; struct bufferevent_private *bevp; BEV_LOCK(bev); bevp = BEV_UPCAST(bev); EVUTIL_ASSERT(bevp->rate_limiting && bevp->rate_limiting->cfg); old_limit = bevp->rate_limiting->limit.read_limit; new_limit = (bevp->rate_limiting->limit.read_limit -= decr); if (old_limit > 0 && new_limit <= 0) { bufferevent_suspend_read(bev, BEV_SUSPEND_BW); if (event_add(&bevp->rate_limiting->refill_bucket_event, &bevp->rate_limiting->cfg->tick_timeout) < 0) r = -1; } else if (old_limit <= 0 && new_limit > 0) { if (!(bevp->write_suspended & BEV_SUSPEND_BW)) event_del(&bevp->rate_limiting->refill_bucket_event); bufferevent_unsuspend_read(bev, BEV_SUSPEND_BW); } BEV_UNLOCK(bev); return r; } int bufferevent_decrement_write_limit(struct bufferevent *bev, ev_ssize_t decr) { /* XXXX this is mostly copy-and-paste from * bufferevent_decrement_read_limit */ int r = 0; ev_ssize_t old_limit, new_limit; struct bufferevent_private *bevp; BEV_LOCK(bev); bevp = BEV_UPCAST(bev); EVUTIL_ASSERT(bevp->rate_limiting && bevp->rate_limiting->cfg); old_limit = bevp->rate_limiting->limit.write_limit; new_limit = (bevp->rate_limiting->limit.write_limit -= decr); if (old_limit > 0 && new_limit <= 0) { bufferevent_suspend_write(bev, BEV_SUSPEND_BW); if (event_add(&bevp->rate_limiting->refill_bucket_event, &bevp->rate_limiting->cfg->tick_timeout) < 0) r = -1; } else if (old_limit <= 0 && new_limit > 0) { if (!(bevp->read_suspended & BEV_SUSPEND_BW)) event_del(&bevp->rate_limiting->refill_bucket_event); bufferevent_unsuspend_write(bev, BEV_SUSPEND_BW); } BEV_UNLOCK(bev); return r; } int bufferevent_rate_limit_group_decrement_read( struct bufferevent_rate_limit_group *grp, ev_ssize_t decr) { int r = 0; ev_ssize_t old_limit, new_limit; LOCK_GROUP(grp); old_limit = grp->rate_limit.read_limit; new_limit = (grp->rate_limit.read_limit -= decr); if (old_limit > 0 && new_limit <= 0) { _bev_group_suspend_reading(grp); } else if (old_limit <= 0 && new_limit > 0) { _bev_group_unsuspend_reading(grp); } UNLOCK_GROUP(grp); return r; } int bufferevent_rate_limit_group_decrement_write( struct bufferevent_rate_limit_group *grp, ev_ssize_t decr) { int r = 0; ev_ssize_t old_limit, new_limit; LOCK_GROUP(grp); old_limit = grp->rate_limit.write_limit; new_limit = (grp->rate_limit.write_limit -= decr); if (old_limit > 0 && new_limit <= 0) { _bev_group_suspend_writing(grp); } else if (old_limit <= 0 && new_limit > 0) { _bev_group_unsuspend_writing(grp); } UNLOCK_GROUP(grp); return r; } void bufferevent_rate_limit_group_get_totals(struct bufferevent_rate_limit_group *grp, ev_uint64_t *total_read_out, ev_uint64_t *total_written_out) { EVUTIL_ASSERT(grp != NULL); if (total_read_out) *total_read_out = grp->total_read; if (total_written_out) *total_written_out = grp->total_written; } void bufferevent_rate_limit_group_reset_totals(struct bufferevent_rate_limit_group *grp) { grp->total_read = grp->total_written = 0; } dnscrypt-proxy-1.9.4/src/libevent-modified/bufferevent_sock.c000644 000765 000024 00000042620 13037731714 024033 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * Copyright (c) 2002-2006 Niels Provos * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include "event2/event-config.h" #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_STDARG_H #include #endif #ifdef _EVENT_HAVE_UNISTD_H #include #endif #ifdef WIN32 #include #include #endif #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #ifdef _EVENT_HAVE_NETINET_IN_H #include #endif #ifdef _EVENT_HAVE_NETINET_IN6_H #include #endif #include "event2/util.h" #include "event2/bufferevent.h" #include "event2/buffer.h" #include "event2/bufferevent_struct.h" #include "event2/bufferevent_compat.h" #include "event2/event.h" #include "log-internal.h" #include "mm-internal.h" #include "bufferevent-internal.h" #include "util-internal.h" #ifdef WIN32 #include "iocp-internal.h" #endif /* prototypes */ static int be_socket_enable(struct bufferevent *, short); static int be_socket_disable(struct bufferevent *, short); static void be_socket_destruct(struct bufferevent *); static int be_socket_adj_timeouts(struct bufferevent *); static int be_socket_flush(struct bufferevent *, short, enum bufferevent_flush_mode); static int be_socket_ctrl(struct bufferevent *, enum bufferevent_ctrl_op, union bufferevent_ctrl_data *); static void be_socket_setfd(struct bufferevent *, evutil_socket_t); const struct bufferevent_ops bufferevent_ops_socket = { "socket", evutil_offsetof(struct bufferevent_private, bev), be_socket_enable, be_socket_disable, be_socket_destruct, be_socket_adj_timeouts, be_socket_flush, be_socket_ctrl, }; #define be_socket_add(ev, t) \ _bufferevent_add_event((ev), (t)) static void bufferevent_socket_outbuf_cb(struct evbuffer *buf, const struct evbuffer_cb_info *cbinfo, void *arg) { struct bufferevent *bufev = arg; struct bufferevent_private *bufev_p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); if (cbinfo->n_added && (bufev->enabled & EV_WRITE) && !event_pending(&bufev->ev_write, EV_WRITE, NULL) && !bufev_p->write_suspended) { /* Somebody added data to the buffer, and we would like to * write, and we were not writing. So, start writing. */ if (be_socket_add(&bufev->ev_write, &bufev->timeout_write) == -1) { /* Should we log this? */ } } } static void bufferevent_readcb(evutil_socket_t fd, short event, void *arg) { struct bufferevent *bufev = arg; struct bufferevent_private *bufev_p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); struct evbuffer *input; int res = 0; short what = BEV_EVENT_READING; ev_ssize_t howmuch = -1, readmax=-1; _bufferevent_incref_and_lock(bufev); if (event == EV_TIMEOUT) { /* Note that we only check for event==EV_TIMEOUT. If * event==EV_TIMEOUT|EV_READ, we can safely ignore the * timeout, since a read has occurred */ what |= BEV_EVENT_TIMEOUT; goto error; } input = bufev->input; /* * If we have a high watermark configured then we don't want to * read more data than would make us reach the watermark. */ if (bufev->wm_read.high != 0) { howmuch = bufev->wm_read.high - evbuffer_get_length(input); /* we somehow lowered the watermark, stop reading */ if (howmuch <= 0) { bufferevent_wm_suspend_read(bufev); goto done; } } readmax = _bufferevent_get_read_max(bufev_p); if (howmuch < 0 || howmuch > readmax) /* The use of -1 for "unlimited" * uglifies this code. XXXX */ howmuch = readmax; if (bufev_p->read_suspended) goto done; evbuffer_unfreeze(input, 0); res = evbuffer_read(input, fd, (int)howmuch); /* XXXX evbuffer_read would do better to take and return ev_ssize_t */ evbuffer_freeze(input, 0); if (res == -1) { int err = evutil_socket_geterror(fd); if (EVUTIL_ERR_RW_RETRIABLE(err)) goto reschedule; /* error case */ what |= BEV_EVENT_ERROR; } else if (res == 0) { /* eof case */ what |= BEV_EVENT_EOF; } if (res <= 0) goto error; _bufferevent_decrement_read_buckets(bufev_p, res); /* Invoke the user callback - must always be called last */ if (evbuffer_get_length(input) >= bufev->wm_read.low) _bufferevent_run_readcb(bufev); goto done; reschedule: goto done; error: bufferevent_disable(bufev, EV_READ); _bufferevent_run_eventcb(bufev, what); done: _bufferevent_decref_and_unlock(bufev); } static void bufferevent_writecb(evutil_socket_t fd, short event, void *arg) { struct bufferevent *bufev = arg; struct bufferevent_private *bufev_p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); int res = 0; short what = BEV_EVENT_WRITING; int connected = 0; ev_ssize_t atmost = -1; _bufferevent_incref_and_lock(bufev); if (event == EV_TIMEOUT) { /* Note that we only check for event==EV_TIMEOUT. If * event==EV_TIMEOUT|EV_WRITE, we can safely ignore the * timeout, since a read has occurred */ what |= BEV_EVENT_TIMEOUT; goto error; } if (bufev_p->connecting) { int c = evutil_socket_finished_connecting(fd); /* we need to fake the error if the connection was refused * immediately - usually connection to localhost on BSD */ if (bufev_p->connection_refused) { bufev_p->connection_refused = 0; c = -1; } if (c == 0) goto done; bufev_p->connecting = 0; if (c < 0) { event_del(&bufev->ev_write); event_del(&bufev->ev_read); _bufferevent_run_eventcb(bufev, BEV_EVENT_ERROR); goto done; } else { connected = 1; #ifdef WIN32 if (BEV_IS_ASYNC(bufev)) { event_del(&bufev->ev_write); bufferevent_async_set_connected(bufev); _bufferevent_run_eventcb(bufev, BEV_EVENT_CONNECTED); goto done; } #endif _bufferevent_run_eventcb(bufev, BEV_EVENT_CONNECTED); if (!(bufev->enabled & EV_WRITE) || bufev_p->write_suspended) { event_del(&bufev->ev_write); goto done; } } } atmost = _bufferevent_get_write_max(bufev_p); if (bufev_p->write_suspended) goto done; if (evbuffer_get_length(bufev->output)) { evbuffer_unfreeze(bufev->output, 1); res = evbuffer_write_atmost(bufev->output, fd, atmost); evbuffer_freeze(bufev->output, 1); if (res == -1) { int err = evutil_socket_geterror(fd); if (EVUTIL_ERR_RW_RETRIABLE(err)) goto reschedule; what |= BEV_EVENT_ERROR; } else if (res == 0) { /* eof case XXXX Actually, a 0 on write doesn't indicate an EOF. An ECONNRESET might be more typical. */ what |= BEV_EVENT_EOF; } if (res <= 0) goto error; _bufferevent_decrement_write_buckets(bufev_p, res); } if (evbuffer_get_length(bufev->output) == 0) { event_del(&bufev->ev_write); } /* * Invoke the user callback if our buffer is drained or below the * low watermark. */ if ((res || !connected) && evbuffer_get_length(bufev->output) <= bufev->wm_write.low) { _bufferevent_run_writecb(bufev); } goto done; reschedule: if (evbuffer_get_length(bufev->output) == 0) { event_del(&bufev->ev_write); } goto done; error: bufferevent_disable(bufev, EV_WRITE); _bufferevent_run_eventcb(bufev, what); done: _bufferevent_decref_and_unlock(bufev); } struct bufferevent * bufferevent_socket_new(struct event_base *base, evutil_socket_t fd, int options) { struct bufferevent_private *bufev_p; struct bufferevent *bufev; #ifdef WIN32 if (base && event_base_get_iocp(base)) return bufferevent_async_new(base, fd, options); #endif if ((bufev_p = mm_calloc(1, sizeof(struct bufferevent_private)))== NULL) return NULL; if (bufferevent_init_common(bufev_p, base, &bufferevent_ops_socket, options) < 0) { mm_free(bufev_p); return NULL; } bufev = &bufev_p->bev; evbuffer_set_flags(bufev->output, EVBUFFER_FLAG_DRAINS_TO_FD); event_assign(&bufev->ev_read, bufev->ev_base, fd, EV_READ|EV_PERSIST, bufferevent_readcb, bufev); event_assign(&bufev->ev_write, bufev->ev_base, fd, EV_WRITE|EV_PERSIST, bufferevent_writecb, bufev); evbuffer_add_cb(bufev->output, bufferevent_socket_outbuf_cb, bufev); evbuffer_freeze(bufev->input, 0); evbuffer_freeze(bufev->output, 1); return bufev; } int bufferevent_socket_connect(struct bufferevent *bev, struct sockaddr *sa, int socklen) { struct bufferevent_private *bufev_p = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); evutil_socket_t fd; int r = 0; int result=-1; int ownfd = 0; _bufferevent_incref_and_lock(bev); if (!bufev_p) goto done; fd = bufferevent_getfd(bev); if (fd < 0) { if (!sa) goto done; fd = socket(sa->sa_family, SOCK_STREAM, 0); if (fd < 0) goto done; if (evutil_make_socket_nonblocking(fd)<0) goto done; ownfd = 1; } if (sa) { #ifdef WIN32 if (bufferevent_async_can_connect(bev)) { bufferevent_setfd(bev, fd); r = bufferevent_async_connect(bev, fd, sa, socklen); if (r < 0) goto freesock; bufev_p->connecting = 1; result = 0; goto done; } else #endif r = evutil_socket_connect(&fd, sa, socklen); if (r < 0) goto freesock; } #ifdef WIN32 /* ConnectEx() isn't always around, even when IOCP is enabled. * Here, we borrow the socket object's write handler to fall back * on a non-blocking connect() when ConnectEx() is unavailable. */ if (BEV_IS_ASYNC(bev)) { event_assign(&bev->ev_write, bev->ev_base, fd, EV_WRITE|EV_PERSIST, bufferevent_writecb, bev); } #endif bufferevent_setfd(bev, fd); if (r == 0) { if (! be_socket_enable(bev, EV_WRITE)) { bufev_p->connecting = 1; result = 0; goto done; } } else if (r == 1) { /* The connect succeeded already. How very BSD of it. */ result = 0; bufev_p->connecting = 1; event_active(&bev->ev_write, EV_WRITE, 1); } else { /* The connect failed already. How very BSD of it. */ bufev_p->connection_refused = 1; bufev_p->connecting = 1; result = 0; event_active(&bev->ev_write, EV_WRITE, 1); } goto done; freesock: _bufferevent_run_eventcb(bev, BEV_EVENT_ERROR); if (ownfd) evutil_closesocket(fd); /* do something about the error? */ done: _bufferevent_decref_and_unlock(bev); return result; } static void bufferevent_connect_getaddrinfo_cb(int result, struct evutil_addrinfo *ai, void *arg) { struct bufferevent *bev = arg; struct bufferevent_private *bev_p = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); int r; BEV_LOCK(bev); bufferevent_unsuspend_write(bev, BEV_SUSPEND_LOOKUP); bufferevent_unsuspend_read(bev, BEV_SUSPEND_LOOKUP); if (result != 0) { bev_p->dns_error = result; _bufferevent_run_eventcb(bev, BEV_EVENT_ERROR); _bufferevent_decref_and_unlock(bev); if (ai) evutil_freeaddrinfo(ai); return; } /* XXX use the other addrinfos? */ /* XXX use this return value */ r = bufferevent_socket_connect(bev, ai->ai_addr, (int)ai->ai_addrlen); (void)r; _bufferevent_decref_and_unlock(bev); evutil_freeaddrinfo(ai); } int bufferevent_socket_connect_hostname(struct bufferevent *bev, struct evdns_base *evdns_base, int family, const char *hostname, int port) { char portbuf[10]; struct evutil_addrinfo hint; int err; struct bufferevent_private *bev_p = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); if (family != AF_INET && family != AF_INET6 && family != AF_UNSPEC) return -1; if (port < 1 || port > 65535) return -1; BEV_LOCK(bev); bev_p->dns_error = 0; BEV_UNLOCK(bev); evutil_snprintf(portbuf, sizeof(portbuf), "%d", port); memset(&hint, 0, sizeof(hint)); hint.ai_family = family; hint.ai_protocol = IPPROTO_TCP; hint.ai_socktype = SOCK_STREAM; bufferevent_suspend_write(bev, BEV_SUSPEND_LOOKUP); bufferevent_suspend_read(bev, BEV_SUSPEND_LOOKUP); bufferevent_incref(bev); err = evutil_getaddrinfo_async(evdns_base, hostname, portbuf, &hint, bufferevent_connect_getaddrinfo_cb, bev); if (err == 0) { return 0; } else { bufferevent_unsuspend_write(bev, BEV_SUSPEND_LOOKUP); bufferevent_unsuspend_read(bev, BEV_SUSPEND_LOOKUP); return -1; } } int bufferevent_socket_get_dns_error(struct bufferevent *bev) { int rv; struct bufferevent_private *bev_p = EVUTIL_UPCAST(bev, struct bufferevent_private, bev); BEV_LOCK(bev); rv = bev_p->dns_error; BEV_UNLOCK(bev); return rv; } /* * Create a new buffered event object. * * The read callback is invoked whenever we read new data. * The write callback is invoked whenever the output buffer is drained. * The error callback is invoked on a write/read error or on EOF. * * Both read and write callbacks maybe NULL. The error callback is not * allowed to be NULL and have to be provided always. */ struct bufferevent * bufferevent_new(evutil_socket_t fd, bufferevent_data_cb readcb, bufferevent_data_cb writecb, bufferevent_event_cb eventcb, void *cbarg) { struct bufferevent *bufev; if (!(bufev = bufferevent_socket_new(NULL, fd, 0))) return NULL; bufferevent_setcb(bufev, readcb, writecb, eventcb, cbarg); return bufev; } static int be_socket_enable(struct bufferevent *bufev, short event) { if (event & EV_READ) { if (be_socket_add(&bufev->ev_read,&bufev->timeout_read) == -1) return -1; } if (event & EV_WRITE) { if (be_socket_add(&bufev->ev_write,&bufev->timeout_write) == -1) return -1; } return 0; } static int be_socket_disable(struct bufferevent *bufev, short event) { struct bufferevent_private *bufev_p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); if (event & EV_READ) { if (event_del(&bufev->ev_read) == -1) return -1; } /* Don't actually disable the write if we are trying to connect. */ if ((event & EV_WRITE) && ! bufev_p->connecting) { if (event_del(&bufev->ev_write) == -1) return -1; } return 0; } static void be_socket_destruct(struct bufferevent *bufev) { struct bufferevent_private *bufev_p = EVUTIL_UPCAST(bufev, struct bufferevent_private, bev); evutil_socket_t fd; EVUTIL_ASSERT(bufev->be_ops == &bufferevent_ops_socket); fd = event_get_fd(&bufev->ev_read); event_del(&bufev->ev_read); event_del(&bufev->ev_write); if ((bufev_p->options & BEV_OPT_CLOSE_ON_FREE) && fd >= 0) EVUTIL_CLOSESOCKET(fd); } static int be_socket_adj_timeouts(struct bufferevent *bufev) { int r = 0; if (event_pending(&bufev->ev_read, EV_READ, NULL)) if (be_socket_add(&bufev->ev_read, &bufev->timeout_read) < 0) r = -1; if (event_pending(&bufev->ev_write, EV_WRITE, NULL)) { if (be_socket_add(&bufev->ev_write, &bufev->timeout_write) < 0) r = -1; } return r; } static int be_socket_flush(struct bufferevent *bev, short iotype, enum bufferevent_flush_mode mode) { return 0; } static void be_socket_setfd(struct bufferevent *bufev, evutil_socket_t fd) { BEV_LOCK(bufev); EVUTIL_ASSERT(bufev->be_ops == &bufferevent_ops_socket); event_del(&bufev->ev_read); event_del(&bufev->ev_write); event_assign(&bufev->ev_read, bufev->ev_base, fd, EV_READ|EV_PERSIST, bufferevent_readcb, bufev); event_assign(&bufev->ev_write, bufev->ev_base, fd, EV_WRITE|EV_PERSIST, bufferevent_writecb, bufev); if (fd >= 0) bufferevent_enable(bufev, bufev->enabled); BEV_UNLOCK(bufev); } /* XXXX Should non-socket bufferevents support this? */ int bufferevent_priority_set(struct bufferevent *bufev, int priority) { int r = -1; BEV_LOCK(bufev); if (bufev->be_ops != &bufferevent_ops_socket) goto done; if (event_priority_set(&bufev->ev_read, priority) == -1) goto done; if (event_priority_set(&bufev->ev_write, priority) == -1) goto done; r = 0; done: BEV_UNLOCK(bufev); return r; } /* XXXX Should non-socket bufferevents support this? */ int bufferevent_base_set(struct event_base *base, struct bufferevent *bufev) { int res = -1; BEV_LOCK(bufev); if (bufev->be_ops != &bufferevent_ops_socket) goto done; bufev->ev_base = base; res = event_base_set(base, &bufev->ev_read); if (res == -1) goto done; res = event_base_set(base, &bufev->ev_write); done: BEV_UNLOCK(bufev); return res; } static int be_socket_ctrl(struct bufferevent *bev, enum bufferevent_ctrl_op op, union bufferevent_ctrl_data *data) { switch (op) { case BEV_CTRL_SET_FD: be_socket_setfd(bev, data->fd); return 0; case BEV_CTRL_GET_FD: data->fd = event_get_fd(&bev->ev_read); return 0; case BEV_CTRL_GET_UNDERLYING: case BEV_CTRL_CANCEL_ALL: default: return -1; } } dnscrypt-proxy-1.9.4/src/libevent-modified/changelist-internal.h000644 000765 000024 00000010722 13037731714 024437 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _CHANGELIST_H_ #define _CHANGELIST_H_ /* A "changelist" is a list of all the fd status changes that should be made between calls to the backend's dispatch function. There are a few reasons that a backend would want to queue changes like this rather than processing them immediately. 1) Sometimes applications will add and delete the same event more than once between calls to dispatch. Processing these changes immediately is needless, and potentially expensive (especially if we're on a system that makes one syscall per changed event). 2) Sometimes we can coalesce multiple changes on the same fd into a single syscall if we know about them in advance. For example, epoll can do an add and a delete at the same time, but only if we have found out about both of them before we tell epoll. 3) Sometimes adding an event that we immediately delete can cause unintended consequences: in kqueue, this makes pending events get reported spuriously. */ #include "event2/util.h" /** Represents a */ struct event_change { /** The fd or signal whose events are to be changed */ evutil_socket_t fd; /* The events that were enabled on the fd before any of these changes were made. May include EV_READ or EV_WRITE. */ short old_events; /* The changes that we want to make in reading and writing on this fd. * If this is a signal, then read_change has EV_CHANGE_SIGNAL set, * and write_change is unused. */ ev_uint8_t read_change; ev_uint8_t write_change; }; /* Flags for read_change and write_change. */ /* If set, add the event. */ #define EV_CHANGE_ADD 0x01 /* If set, delete the event. Exclusive with EV_CHANGE_ADD */ #define EV_CHANGE_DEL 0x02 /* If set, this event refers a signal, not an fd. */ #define EV_CHANGE_SIGNAL EV_SIGNAL /* Set for persistent events. Currently not used. */ #define EV_CHANGE_PERSIST EV_PERSIST /* Set for adding edge-triggered events. */ #define EV_CHANGE_ET EV_ET /* The value of fdinfo_size that a backend should use if it is letting * changelist handle its add and delete functions. */ #define EVENT_CHANGELIST_FDINFO_SIZE sizeof(int) /** Set up the data fields in a changelist. */ void event_changelist_init(struct event_changelist *changelist); /** Remove every change in the changelist, and make corresponding changes * in the event maps in the base. This function is generally used right * after making all the changes in the changelist. */ void event_changelist_remove_all(struct event_changelist *changelist, struct event_base *base); /** Free all memory held in a changelist. */ void event_changelist_freemem(struct event_changelist *changelist); /** Implementation of eventop_add that queues the event in a changelist. */ int event_changelist_add(struct event_base *base, evutil_socket_t fd, short old, short events, void *p); /** Implementation of eventop_del that queues the event in a changelist. */ int event_changelist_del(struct event_base *base, evutil_socket_t fd, short old, short events, void *p); #endif dnscrypt-proxy-1.9.4/src/libevent-modified/ChangeLog000644 000765 000024 00000265006 13037731714 022114 0ustar00jstaff000000 000000 Changes in version 2.0.23-stable (28 June 2016) BUGFIXES o Fix potential fd leak in listener_read_cb() (571dbac Mark Ellzey) o Backport for #340 (fix overflow check in expand_singlechain() (7dedc07 Mark Ellzey) o Fix ipv6 support for http. When URL contain domain, not IP address. (502c043 Azat Khuzhin) o Use the free-trailing-chains function in evbuffer_insert_chain too (0e894fb Nick Mathewson) o evbuffer_add: Use last_with_datap if set, not last. (b00db82 Marcus Sundberg) UNIT TESTS o Add regress test ipv6_for_domain. (066a4f6 Azat Khuzhin) o test/regress: add tests for evbuffer_add() breakage on empty last chain (0091da3 Marcus Sundberg) BUILD AND DISTRIBUTION o libevent_core and libevent_extra also deserve a pkgconfig file (a5b4b7a Jan Heylen) MISC o Ignore all pkgconfig generated stuff (9b2a670 Azat Khuzhin) Changes in version 2.0.22-stable (5 Jan 2015) SECURITY FIXES (evbuffers) o Avoid integer overflow bugs in evbuffer_add() and related functions. See CVE-2014-6272 advisory for more information. (20d6d4458bee5d88bda1511c225c25b2d3198d6c) BUGFIXES (evhttp) o fix #73 and fix http_connection_fail_test to catch it (crash fix) (b618204 Greg Hazel) o Avoid racy bufferevent activation (5eb1788 Nate Rosenblum) BUGFIXES (compilation and portability) o Fix compilation with WIN32_HAVE_CONDITION_VARIABLES enabled (7e45739) o Fix missing AC_PROG_SED on older Autoconfs (9ab2b3f Tay Ray Chuan) o Backport libevent to vanilla Autoconf 2.59 (as used in RHEL5) (74d4c44 Kevin Bowling) o Use AC_CONFIG_HEADERS in place of AM_CONFIG_HEADERS for autmake 1.13 compat (817ea36) o Rename configure.in to configure.ac to appease newer autoconfs (0c79787) o Avoid using top_srcdir in TESTS: new automakes do not like this (a55514e) o Use windows vsnprintf fixup logic on all windows environments (e826f19) o Fix a compiler warning when checking for arc4random_buf linker breakage. (5cb3865) o Fix another arc4random_buf-related warning (e64a2b0) o Add -Qunused-arguments for clang on macos (b56611d Trond Norbye) BUGFIXES (resource leaks/lock errors on error) o Avoid leaking fds on evconnlistener with no callback set (69db261) o Avoid double-close on getsockname error in evutil_ersatz_socketpair (0a822a6) o Fix a locking error in bufferevent_socket_get_dns_error. (0a5eb2e) o libevent/win32_dealloc() : fix sizeof(pointer) vs sizeof(*pointer) (b8f5980 Frank Denis) BUGFIXES: (other stability) o bufferevent_pair: don't call downcast(NULL) (f2428a2) o Consistently check for failure from evbuffer_pullup() (60f8f72) o Fix race caused by event_active (3c7d6fc vjpai) BUGFIXES (miscellaneous) o Avoid redundant invocations of init_extension_functions for IOCP (3b77d62) o Typo fixes from Linus Nordberg (cec62cb, 8cd695b) o Add a few files created by "make verify" to .gitignore. (1a8295a Pierre Phaneuf) o regress_buffer: fix 'memcmp' compare size (79800df Maks Naumov) o Fix bufferevent setwatermark suspend_read (b34e4ac ufo2243) o Fix evbuffer_peek() with len==-1 and start_at non-NULL. (fb7e76a) BUFGIXES (evdns) o Checking request nameserver for NULL, before using it. (5c710c0 Belobrov Andrey) o Fix SEGFAULT after evdns_base_resume if no nameservers installed. (f8d7df8 Azat Khuzhin) o Fix a crash in evdns related to shutting down evdns (9f39c88,e8fe749) BUGFIXES (epoll) o Check does arch have the epoll_create and __NR_epoll_wait syscalls. (dfe1e52 Marcin Juszkiewicz) BUGFIXES (evutil_secure_random) o Avoid other RNG initialization FS reads when urandom file is specified (9695e9c, bb52471) o When we seed from /proc/sys/kernel/random/uuid, count it as success (e35b540) o Document that arc4random is not a great cryptographic PRNG. (6e49696) o Add evutil_secure_rng_set_urandom_device_file (2bbb5d7) o Really remove RNG seeds from the stack (f5ced88) SECURITY FIXES (evbuffers) o Avoid integer overflow bugs in evbuffer_add() and related functions. See CVE-2014-6272 advisory for more information. (20d6d4458bee5d88bda1511c225c25b2d3198d6c) DOCUMENTATION FIXES o Fix a mistake in evbuffer_remove() arguments in example http server code (c322c20 Gyepi Sam) o Fix a typo in a comment in buffer.h. Spotted by Alt_F4 (773b0a5) o Clarify event_base_loop exit conditions (031a803) o Use FindClose for handle from FindFirstFile in http-server.c (6466e88) o Fix a typo in a doxygen comment. Reported by 亦得. (be1aeff) Changes in version 2.0.21-stable (18 Nov 2012) BUGFIXES: o ssl: Don't discard SSL read event when timeout and read come close together (576b29f) o ssl: Stop looping in "consider_reading" if reading is suspended. (f719b8a Joachim Bauch) o ssl: No need to reserve space if reading is suspended. (1acf2eb Joachim Bauch) o dns: Avoid a memory-leak on OOM in evdns. (73e85dd, f2bff75 George Danchev) o build: Use python2 rather than python (0eb0109 Ross Lagerwall) o build: Compile without warnings on mingw64 (94866c2) o build: Fix compilation on mingw64 with -DUSE_DEBUG (62bd2c4) o build: Make rpcgen_wrapper.sh work on systems without a "python2" binary (f3009e4) o iocp: Close IOCP listener socket on free when LEV_OPT_CLOSE_ON_FREE is set (cb853ea Juan Pablo Fernandez) o core: Avoid crash when event_pending() called with no event_base set on event (e3cccf3) o misc: remove stray 'x' so print_err will compile when uncommented (ac35650 Patrick Pelletier) o tests: Fix renegotiation test to work around openssl 1.0.1 bug (c2f3086) o tests: Warn when openssl version in unit test mismatches compiled version. (ac009f9) Changes in version 2.0.20-stable (23 Aug 2012) BUGFIXES: o core: Make event_pending() threadsafe. (be7a95c Simon Liu) o win32: avoid crash when waiting forever on zero fds. (160e58b) o evhttp: Fix a memory leak on error in evhttp_uriencode (11c8b31) o evbuffer: Avoid possible needless call to writev. Found by coverity. (6a4ec5c) o evdns: memset sockaddr_in before using it. Found by coverity. (a1a0e67) o evhttp: Check more setsockopt return values when binding sockets. Found by coverity (a0912e3) o evdns: Avoid segfault on weird timeout during name lookup. (dc32077 Greg Hazel) o bufferevent_ssl: Correctly invoke callbacks when a SSL bufferevent reads some and then blocks. (606ac43) PORTABILITY FIXES: o check for arc4random_buf at runtime, on OS X (bff5f94 Greg Hazel) o Correctly check for arc4random_buf (fcec3e8 Sebastian Hahn) o Add explicit AC_PROG_SED to configure.in so all autoconfs will expose $(SED) (ca80ea6) BUILD FIXES: o Add GCC annotations so that the vsprintf functions get checked properly (117e327) o Fix an unused variable warning on *BSD. (c0720c1) UNIT TEST FIXES: o Fix a couple of memory leaks (found with Valgrind). (3b2529a Ross Lagerwall) o Remove deadcode in http regression tests. Found by coverity. (5553346) o Fix possible uninitialized read in dns regression tests. Found by coverity. (2259777) o Set umask before calling mkstemp in unit tests. Found by coverity (f1ce15d) o Fix various check-after-dereference issues in unit tests: found by coverity (4f3732d) o Fix resource leaks in the unit tests; found by coverity (270f279) o Add some missing null checks to unit tests; found by coverity (f021c3d) o Avoid more crashes/bad calls in unit tests; found by coverity (3cde5bf) o Remove unused variable; spotted by coverity (6355b2a) o Add checks to various return values in unit tests. Found by coverity (b9e7329) o Move assignment outside tt_assert in ssl unit tests. Appeases coverity. (a2006c0) Changes in version 2.0.19-stable (3 May 2012) BUGFIXES (CORE): o Refactor event_persist_closure: raise and extract some common logic (bec22b4) o If time has jumped so we'd reschedule a periodic event in the past, schedule it for the future instead (dfd808c) o If a higher-priority event becomes active, don't continue running events of the current priority. (2bfda40) BUGFIXES (SSL): o Fixed potential double-readcb execution with openssl bufferevents. (4e62cd1 Mark Ellzey) BUGFIXES (DNS): o Cancel a probe request when the server is freed, and ignore cancelled probe callbacks (94d2336 Greg Hazel) o Remove redundant DNS_ERR_CANCEL check, move comment (46b8060 Greg Hazel) o When retransmitting a timed-out DNS request, pick a fresh nameserver. (3d9e52a) DOCUMENTATION FIXES: o Fix a typo in the bufferevent documentation (98e9119) o Add missing ) to changelog; spotted by rransom (4c7ee6b) o Fix the website URL in the readme (f775521) COMPILATION FIXES: o Fix a compilation error with MSVC 2005 due to use of mode_t (336dcae) o Configure with gcc older than 2.95 (4a6fd43 Sebastian Hahn) o Generate event-config.h with a single sed script (30b6f88 Zack Weinberg) FORWARD-COMPATIBILITY: o Backport: provide EVENT_LOG_* names, and deprecate _EVENT_LOG_* (d1a03b2) TESTING/DEBUGGING SUPPORT: o dns-example.c can now take a resolv.conf file on the commandline (6610fa5) o Make some evdns.c debug logs more verbose (d873d67) o Work-around a stupid gcov-breaking bug in OSX 10.6 (b3887cd) Changes in version 2.0.18-stable (22 Mar 2012) BUGFIXES (core): o Make uses of open() close-on-exec safe by introducing an internal evutil_open_closeonexec. (d2b5f72 Ross Lagerwall, 03dce42) BUGFIXES (kqueue): o Properly zero the kevent in kq_setup_kevent() (c2c7b39 Sebastian Hahn) BUILD FIXES: o Added OPENSSL_LDFLAGS env variable which is appended to SSL checks. (9278196 Mark Ellzey) o Changed OPENSSL_LDFLAGS to OPENSSL_LIBADD (2d67b63 Mark Ellzey) o Don't do clang version detection when disabling some flags (083296b Sebastian Hahn) BUGFIXES (dns): o Stop crashing in evdns when nameserver probes give a weird error (bec5068) Changes in version 2.0.17-stable (10 Feb 2012) BUGFIXES (core): o Be absolutely sure to clear pncalls before leaving event_signal_closure (11f36a5) o check for sysctl before we use it (358c745 Mike Frysinger) o Remove bogus casts of socket to int before calling ev_callback (f032516) o Make evconnlistener work around bug in older Linux when getting nmapped (ecfc720) o Fix a list corruption bug when using event_reinit() with signals present (6e41cdc) o Fix a fd leak in event_reinit() (3f18ad1) o Do a memberwise comparison of threading function tables (c94a5f2 Nate R) o Use C-style comments in C source files (for compatibility with compilers such as xlc on AIX). (d84d917 Greg Hewgill) o Avoid crash when freeing event_iocp and using event_set_mem_functions (19715a6) o In the kqueue backend, do not report EBADF as an EV_READ (5d7bfa1 Nicholas Marriott) BUGFIXES (evbuffer and bufferevents): o Fix behavior of evbuffer_peek(buf,-1,NULL,NULL,0) (c986f23 Zack Weinberg) o Loop on filtering SSL reads until we are blocked or exhausted. (5b4b812) BUGFIXES (evhttp): o Force strict validation of HTTP version in response. (790f6b3 Catalin Patulea) BUGFIXES (evdns): o evdns: fix a bug in circular-queue implementation (d6094b1) BUILD FIXES: o Fix a silly compilation error with the sun compiler (1927776 Colin Watt) o Suppress a gcc warning from ignoring fwrite return in http-sample.c (7206e8c) DOCUMENTATION FIXES: o Slightly clarify evbuffer_peek documentation (7bbf6ca) o Update copyright notices to 2012 (e49e289) NEW APIS: o Backport evhttp_connection_get_bufferevent to Libevent 2.0 (da70fa7 Arno Bakker) TESTS AND TEST FIXES: o Fix a race condition in the dns/bufferevent_connect_hostname test. (cba48c7) o Add function to check referential integrity of an event_base (27737d5) o Check event_base correctness at end of each unit test (3312b02) o Workaround in the unit tests for an apparent epoll bug in Linux 3.2 (dab9187) o Better workaround for Linux 3.2 edge-triggered epoll bug (9f9e259) Changes in version 2.0.16-stable (18 Nov 2011) BUGFIXES (core): o More detailed message in case of libevent self-debugging failure. (9e6a4ef Leonid Evdokimov) o epoll: close fd on alloc fail at initialization (1aee718 Jamie Iles) o Fix compile warning from saying event2/*.h inside a comment (447b0ba) o Warn when unable to construct base because of failing make_base_notifiable (4e797f3) o Don't try to make notifiable event_base when no threading fns are configured (e787413) BUGFIXES (evbuffer): o unit test for remove_buffer bug (90bd620 Greg Hazel) o Fix an evbuffer crash in evbuffer_remove_buffer() (c37069c) BUGFIXES (bufferevent_openssl): o Refactor amount-to-read calculations in buffervent_ssl consider_reading() (a186e73 Mark Ellzey) o Move SSL rate-limit enforcement into bytes_to_read() (96c562f) o Avoid spinning on OpenSSL reads (2aa036f Mark Ellzey) BUGFIXES (dns) o Empty DNS reply with OK status is another way to say NODATA. (21a08d6 Leonid Evdokimov) TESTING: o Tests for 94fba5b and f72e8f6 (d58c15e Leonid Evdokimov) o Test for commit aff6ba1 (f7841bf Leonid Evdokimov) o Style and comment tweaks for dns/leak* tests (5e42202) o improve test to remove at least one buffer from src (7eb52eb Greg Hazel) DOCUMENTATION: o Add note about evhttp_send_reply_end to its doxygen (724bfb5) o Update copyright dates to 2011. (3c824bd) o Fix typo in whatsnew-2.0.txt (674bc6a Mansour Moufid) o Improve win32 behavior of dns-sample.c code (a3f320e Gisle Vanem) Changes in version 2.0.15-stable (12 Oct 2011) BUGFIXES (DNS): o DNS: add ttl for negative answers using RFC 2308 idea. (f72e8f6 Leonid Evdokimov) o Add DNS_ERR_NODATA error code to handle empty replies. (94fba5b Leonid Evdokimov) BUFGIXES (bufferevents and evbuffers): o Make evbuffer callbacks get the right n_added value after evbuffer_add (1ef1f68 Alex) o Prefer mmap to sendfile unless a DRAINS_TO_FD flag is set. Allows add_file to work with SSL. (0ba0af9) BUGFIXES (event loop): o When a signal callback is activated to run multiple times, allow event_base_loopbreak to work even before they all have run. (4e8eb6a) DOCUMENTATION FIXES: o Fix docstring in dns.h (2b6eae5 Leonid Evdokimov) o refer to non-deprecated evdns functions in comments (ba5c27d Greg Hazel) BUILD AND TESTING FIXES: o le-proxy and regress depend on openssl directly (9ae061a Sergey Avseyev) o Use _SOURCES, not _sources, in sample/Makefile.am (7f82382) o Fixed compiler warnings for unchecked read/write calls. (c3b62fd Mark Ellzey) o Make write-checking fixes use tt_fail_perror (2b76847) o Fix some "value never used" warnings with gcc 4.6.1 (39c0cf7) Changes in version 2.0.14-stable (31 Aug 2011) BUGFIXES (bufferevents and evbuffers): o Propagate errors on the underlying bufferevent to the user. (4a34394 Joachim Bauch) o Ignore OpenSSL deprecation warnings on OS X (5d1b255 Sebastian Hahn) o Fix handling of group rate limits under 64 bytes of burst (6d5440e) o Solaris sendfile: correctly detect amount of data sent (643922e Michael Herf) o Make rate limiting work with common_timeout logic (5b18f13) o clear read watermark on underlying bufferevent when creating filtering bev to fix potentially failing fragmented ssl handshakes (54f7e61 Joachim Bauch) BUGFIXES (IOCP): o IOCP: don't launch reads or writes on an unconnected socket (495c227) o Make IOCP rate-limiting group support stricter and less surprising. (a98da7b) o Have test-ratelim.c support IOCP (0ff2c5a) o Make overlapped reads result in evbuffer callbacks getting invoked (6acfbdd) o Correctly terminate IO on an async bufferevent on bufferevent_free (e6af35d) BUGFIXES (other): o Fix evsig_dealloc memory leak with debugging turned on. (9b724b2 Leonid Evdokimov) o Fix request_finished memory leak with debugging turned on. (aff6ba1 Leonid Evdokimov) BUILD AND TESTING FIXES: o Allow OS-neutral builds for platforms where some versions have arc4random_buf (b442302 Mitchell Livingston) o Try to fix 'make distcheck' errors when building out-of-tree (04656ea Dave Hart) o Clean up some problems identified by Coverity. (7c11e51 Harlan Stenn) Changes in version 2.0.13-stable (18 Jul 2011) BUGFIXES o Avoid race-condition when initializing global locks (b683cae) o Fix bug in SSL bufferevents backed by a bev with a write high-watermarks (e050703 Joachim Bauch) o Speed up invoke_callbacks on evbuffers when there are no callbacks (f87f568 Mark Ellzey) o Avoid a segfault when all methods are disabled or broken (27ce38b) o Fix incorrect results from evbuffer_search_eol(EOL_LF) (4461f1a) o Add some missing checks for mm_calloc failures (89d5e09) o Replace an assertion for event_base_free(NULL) with a check-and-warn (09fe97d) o Report kqueue ebadf, epipe, and eperm as EV_READ events (1fd34ab) o Check if the `evhttp_new_object' function in `http.c' returns NULL. (446cc7a Mansour Moufid) o Use the correct printf args when formatting size_t (3203f88) o Complain if the caller tries to change threading cbs after setting them (cb6ecee) DOCUMENTATION FIXES AND IMPROVEMENTS o Revise the event/evbuffer/bufferevent doxygen for clarity and accuracy (2888fac) o Update Doxyfile to produce more useful output (aea0555) TEST FIXES o Fix up test_evutil_snprintf (caf695a) o Fix tinytest invocation from windows shell (57def34 Ed Day) BUILD FIXES o Use AM_CPPFLAGS in sample/Makefile.am, not AM_CFLAGS (4a5c82d) o Fix select.c compilation on systems with no NFDBITS (49d1136) o Fix a few warnings on OpenBSD (8ee9f9c Nicholas Marriott) o Don't break when building tests from git without python installed (b031adf) o Don't install event_rpcgen.py when --disable-libevent-install is used (e23cda3 Harlan Stenn) o Fix AIX build issue with TAILQ_FOREACH definition (e934096) Changes in version 2.0.12-stable (4 Jun 2011) BUGFIXES o Fix a warn-and-fail bug in kqueue by providing kevent() room to report errors (28317a0) o Fix an assert-inducing fencepost bug in the select backend (d90149d) o Fix failing http assertion introducd in commit 0d6622e (0848814 Kevin Ko) o Fix a bug that prevented us from configuring IPv6 nameservers. (74760f1) o Prevent size_t overflow in evhttp_htmlescape. (06c51cd Mansour Moufid) o Added several checks for under/overflow conditions in evhttp_handle_chunked_read (a279272 Mark Ellzey) o Added overflow checks in evhttp_read_body and evhttp_get_body (84560fc Mark Ellzey) DOCUMENTATION: o Add missing words to EVLOOP_NONBLOCK documentation (9556a7d) BUILD FIXES o libssl depends on libcrypto, not the other way around. (274dd03 Peter Rosin) o Libtool brings in the dependencies of libevent_openssl.la automatically (7b819f2 Peter Rosin) o Use OPENSSL_LIBS in Makefile.am (292092e Sebastian Hahn) o Move the win32 detection in configure.in (ceb03b9 Sebastian Hahn) o Correctly detect openssl on windows (6619385 Sebastian Hahn) o Fix a compile warning with zlib 1.2.4 and 1.2.5 (5786b91 Sebastian Hahn) o Fix compilation with GCC 2, which had no __builtin_expect (09d39a1 Dave Hart) o Fix new warnings from GCC 4.6 (06a714f) o Link with -lshell32 and -ladvapi32 on Win32. (86090ee Peter Rosin) o Make the tests build when OpenSSL is not available. (07c41be Peter Rosin) o Bring in the compile script from automake, if needed. (f3c7a4c Peter Rosin) o MSVC does not provide S_ISDIR, so provide it manually. (70be7d1 Peter Rosin) o unistd.h and sys/time.h might not exist. (fe93022 Peter Rosin) o Make sure TINYTEST_LOCAL is defined when building tinytest.c (8fa030c Peter Rosin) o Fix winsock2.h #include issues with MSVC (3d768dc Peter Rosin) o Use evutil_gettimeofday instead of relying on the system gettimeofday. (0de87fe Peter Rosin) o Always use evutil_snprintf, even if OS provides it (d1b2d11 Sebastian Hahn) o InitializeCriticalSectionAndSpinCount requires _WIN32_WINNT >= 0x0403. (816115a Peter Rosin) o cygwin: make it possible to build DLLs (d54d3fc) Changes in version 2.0.11-stable (27 Apr 2011) [Autogenerated from the Git log, sorted and cleaned by hand.] BUGFIXES: o Fix evport handling of POLLHUP and POLLERR (b42ce4b) o Fix compilation on Windows with NDEBUG (cb8059d) o Check for POLLERR, POLLHUP and POLLNVAL for Solaris event ports (0144886 Trond Norbye) o Detect and handle more allocation failures. (666b096 Jardel Weyrich) o Use event_err() only if the failure is truly unrecoverable. (3f8d22a Jardel Weyrich) o Handle resize failures in the select backend better. (83e805a) o Correctly free selectop fields when select_resize fails in select_init (0c0ec0b) o Make --enable-gcc-warnings a no-op if not using gcc (3267703) o Fix a type error in our (unused) arc4random_stir() (f736198) o Correctly detect and stop non-chunked http requests when the body is too long (63a715e) o Have event_base_gettimeofday_cached() always return wall-clock time (a459ef7) o Workaround for http crash bug 3078187 (5dc5662 Tomash Brechko) o Fix incorrect assertions and possible use-after-free in evrpc_free() (4b8f02f Christophe Fillot) o Reset outgoing http connection when read data in idle state. (272823f Tomash Brechko) o Fix subtle recursion in evhttp_connection_cb_cleanup(). (218cf19 Tomash Brechko) o Fix the case when failed evhttp_make_request() leaved request in the queue. (0d6622e Tomash Brechko) o Fix a crash bug in evdns server circular list code (00e91b3) o Handle calloc failure in evdns. (Found by Dave Hart) (364291e) o Fix a memory leak on win32 socket->event map. (b4f89f0) o Add a forgotten NULL check to evhttp_parse_headers (12311ff Sebastian Hahn) o Fix possible NULL-deref in evdns_cancel_request (5208544 Sebastian Hahn) PORTABILITY: o Fall back to sscanf if we have no other way to implement strtoll (453317b) o Build correctly on platforms without sockaddr_storage (9184563) o Try to build correctly on platforms with no IPv6 support (713c254) o Build on systems without AI_PASSIVE (cb92113) o Fix http unit test on non-windows platforms without getaddrinfo (6092f12) o Do not check for gethostbyname_r versions if we have getaddrinfo (c1260b0) o Include arpa/inet.h as needed on HPUX (10c834c Harlan Stenn) o Include util-internal.h as needed to build on platforms with no sockaddr_storage (bbf5515 Harlan Stenn) o Check for getservbyname even if not on win32. (af08a94 Harlan Stenn) o Add -D_OSF_SOURCE to fix hpux builds (0b33479 Harlan Stenn) o Check for allocation failures in apply_socktype_protocol_hack (637d17a) o Fix the check for multicast or broadcast addresses in evutil_check_interfaces (1a21d7b) o Avoid a free(NULL) if out-of-memory in evdns_getaddrinfo. Found by Dave Hart (3417f68) DEFENSIVE PROGRAMMING: o Add compile-time check for AF_UNSPEC==PF_UNSPEC (3c8f4e7) BUGS IN TESTS: o Fix test.sh output on solaris (b4f89b6 Dave Hart) o Make test-eof fail with a timeout if we never get an eof. (05a2c22 Harlan Stenn) o Use %s with printf in test.sh (039b9bd) o Add an assert to appease clang's static analyzer (b0ff7eb Sebastian Hahn) o Add a forgotten return value check in the unit tests (3819b62 Sebastian Hahn) o Actually send NULL request in http_bad_request_test (b693c32 Sebastian Hahn) o add some (void) casts for unused variables (65707d7 Sebastian Hahn) o Refactor test_getaddrinfo_async_cancel_stress() (48c44a6 Sebastian Hahn) o Be nice and "handle" error return values in sample code (4bac793 Sebastian Hahn) o Check return value of evbuffer_add_cb in tests (93a1abb Sebastian Hahn) o Remote some dead code from dns-example.c (744c745 Sebastian Hahn) o Zero a struct sockaddr_in before using it (646f9fe Sebastian Hahn) BUILD FIXES: o Fix warnings about AC_LANG_PROGRAM usage (f663112 Sebastian Hahn) o Skip check for zlib if we have no zlib.h (a317c06 Harlan Stenn) o Fix autoconf bracket issues; make check for getaddrinfo include netdb.h (833e5e9 Harlan Stenn) o Correct an AM_CFLAGS to an AM_CPPFLAGS in test/Makefile.am (9c469db Dave Hart) o Fix make distcheck & installation of libevent 1 headers (b5a1f9f Dave Hart) o Fix compilation under LLVM/clang with --enable-gcc-warnings (ad9ff58 Sebastian Hahn) FEATURES: o Make URI parser able to tolerate nonconformant URIs. (95060b5) DOCUMENTATION: o Clarify event_set_mem_functions doc (926f816) o Correct evhttp_del_accept_socket documentation on whether socket is closed (f665924) o fix spelling mistake in whatsnew-2.0.txt (deb2f73) o Fix sample/http-server ipv6 fixes (eb692be) o Comment internal headers used in sample code. (4eb281c) o Be explicit about how long event loops run in event.h documentation (f95bafb) o Add comment to configure.in to explain gc-sections test logic (c621359) o Fix a couple of memory leaks in samples/http-server.c. Found by Dave Hart. (2e9f665) BUILD IMPROVEMENTS: o Use the gcc -ffunction-segments feature to allow gc when linking with static libevent (0965c56 Dave Hart) o Add configure options to disable installation, regression tests (49e9bb7 Dave Hart) Changes in version 2.0.10-stable (16 Dec 2010) [Autogenerated from the Git log, sorted and cleaned by hand.] BUGFIXES o Minor fix for IOCP shutdown handling fix (2599b2d Kelly Brock) o Correctly notify the main thread when activating an event from a subthread (5beeec9) o Reject overlong http requests early when Expect:100-continue is set (d23839f Constantine Verutin) o EVUTIL_ASSERT: Use sizeof() to avoid "unused variable" warnings with -DNDEBUG. (b63ab17 Evan Jones) CODE CLEANUPS o bufferevent-internal.h: Use the new event2/util.h header, not evutil.h (ef5e65a Evan Jones) o Use relative includes instead of system includes consistently. (fbe64f2 Evan Jones) o Make whitespace more consistent TESTING o tests: Use new event2 headers instead of old compatibility headers. (4f33209 Evan Jones) DOCUMENTATION o Document that the cpu_hint is only used on Windows with IOCP for now (57689c4) o Add stuff to "whats new in 2.0" based on reading include changes since August. (18adc3f) Changes in 2.0.9-rc (30 Nov 2010): [Autogenerated from the Git log, sorted and cleaned by hand.] NEW AND MODIFIED APIs o Add a function to change a listener's callback. (46ee061) o Make evbuffer_add_file take ev_off_t, not off_t (ac7e52d) o Make rate-limits go up to SIZE_MAX/EV_SSIZE_MAX, not just INT32_MAX (2cbb1a1) o Add a bufferevent_get_base function (aab49b6) MAJOR BUGFIXES o Disable changelist for epoll by default because of Linux dup() bug; add an option and/or an envvar to reenable it for speed. (9531763) o Fix a 100%-CPU bug where an SSL connection would sometimes never stop trying to write (1213d3d) o Fix a nasty bug related to use of dup() with epoll on Linux (c281aba) o Fix bugs in posix thread-id calculation when sizeof(pthread_t) != sizeof(long) (fbaf077) o Fix some ints to evutil_socket_t; make tests pass on win64. (f817bfa Dimitre Piskyulev) o Set _EVENT_SIZEOF_VOID_P correctly on win32 and win64 (1ae82cd Dimitre Piskyulev) o Avoid double-invocation of user callback with EVUTIL_EAI_CANCEL (abf01ed) o Set SO_UPDATE_ACCEPT_CONTEXT on sockets from AcceptEx so that shutdown() can work (52aa419) o When closing a filtering bufferevent, clear callbacks on the underlying bufferevent (fc7b1b0) NEW AND MODIFIED HTTP APIs o Add evhttp_parse_query_str to be used with evhttp_uri_parse. (2075fbc) o Add evhttp_response_code to remove one more reason to include http_struct.h (22e0a9b) o Define enumerators for all HTTP methods, including PATCH from RFC5789 (75a7341 Felix Nawothnig) o Functions to actually use evhttp_bound_socket with/as evconnlistener. (006efa7) o Add evhttp_request_get_command so code can tell GET from POST without peeking at the struct. (49f4bf7) o Introduce absolute URI parsing helpers. (86dd720 Pavel Plesov) o Revise evhttp_uri_parse implementation to handle more of RFC3986 (eaa5f1d) o Add evhttp_connection_get_base() to get the event_base from an http connection (cd00079) o Let evhttp_parse_query return -1 on failure (b1756d0) o New evhttp_uri(encode|decode) functions to handle + and NUL characters right (a8148ce) o Add evhttp_response_code to remove one more reason to include http_struct.h (22e0a9b) o Tweak interface for allowed methods (f5b391e) o Add evhttp server alias interface, correct flagging of proxy requests. (aab8c38 Christopher Davis) HTTP BUGFIXES o Add some comments to http.c and make a few functions static. (90b3ed5) o Fix Content-Length when trying send more than 100GB of data (!) on an evhttp. (525da3e) o Fix a bug where we would read too much data in HTTP bodies or requests. (58a1cc6) o Correctly count req->body_size on http usage without Content-Length (8e342e5) o Avoid missed-request bug when entire http request arrives before data is flushed (74c0e86) o reset "chunked" flag when sending non-chunked reply (aa5f55f Joachim Bauch) o evhttp_encode_uri encodes all reserved characters, including !$'()*+,/:=@ (2e63a60) o Replace exact-version checks for HTTP/1.1 with >= or < checks (647e094) o evhttp: Return 501 when we get an unrecognized method, not 400. (536311a) o Don't disable reading from the HTTP connection after sending the request to be notified of connection-close in time (c76640b Felix Nawothnig) o Never call evhttp_readcb while writing. (0512487) o Try to fix an assertion failure related to close detection (0faaa39) o Correctly detect timeouts during http connects (04861d5) o Preliminary support for Continue expectation in evhttp. (fa9305f Christopher Davis) OTHER BUGFIXES o Correct logic for realigning a chain in evbuffer_add (e4f34e8) o Fix a minor syntax error that most compilers didn't care about (e56ff65) o Fix some uses of int for socket in regress (5d389dc) o Check return value for ioctlsocket on win32 (f5ad31c Trond Norbye) o Fix som event_warns that should have been event_warnx (19c71e7) o Fix signal handler types for win64. (b81217f) o Try to clear up more size_t vs int/long issues. (598d133) o Make sure IOCP evconnlistener uses virtual events. (7b40a00 Christopher Davis) o Don't free evdns_request handles until after the callback is invoked (9ed30de) o Fix some more cancel-related bugs in getaddrinfo_async (c7cfbcf) o Make evdns_getaddrinfo_cancel threadsafe (d51b2fc) o Only clear underlying callbacks when the user hasn't reset them. (1ac5b23) o Fix bug in bufferevent_connect on an openssl bufferevent that already had an fd (4f228a1) o Resolve an evport bug in the thread/forking test (3a67d0b) o Make sure the CLOEXEC flag is set on fds we open for base notification (3ab578f) o Fix IRIX build. sa_family collides with a #define in sys/socket.h on IRIX. (e874982 Kevin Bowling) o If not WIN32, include in event2/util.h. (1cd45e5 Kevin Bowling) o Fix some C99-style comments to work with the xlC compiler. (c2e5e22 Kevin Bowling) o Add some checks since lack of TAILQ_FOREACH doesn't imply lack of FIRST, END, NEXT, or INSERT_BEFORE. Quiet some warnings in XL C. (c4dc335 Kevin Bowling) o Reworked AIX __ss_family workaround to use AC_STRUCT_MEMBER. (2e2a3d7 Kevin Bowling) o Take select from when testing in autoconf. AIX build fix. (a3a9f6b Kevin Bowling) o Fix snprintf related failures on IRIX. (3239073 Kevin Bowling) o Remove _event_initialized(); make event_initialized() a function(); make it consistent on windows and non-windows (652024b) o Do not let EVLOOP_ONCE exit the loop until all deferred callbacks have run (2d5e1bd) o Make EVLOOP_ONCE ignore internal events (0617a81) o Possible crash fix when freeing an underlying bufferevent of an openssl bufferevent (29f7623) HTTP CLEANUPS o Stop using Libevent-1 headers in regress_http (1f507d7) o Modernize header usage in bench_http.c (e587069) o fix signed/unsigned warnings in http.c (74a91e5) o Update the HTTP regression tests to use Libevent2 apis for non-http stuff (d9ffa89) o Start porting http tests to not use legacy interfaces (8505a74) o Convert the rest of the http tests to be non-legacy unit tests. (9bb8239) o Rename the confusing "base" static variable in regress_http.c (353402a) o Stop accessing http request struct directly from in the unit tests. (0b137f4) o Refactor http version parsing into a single function (a38140b) TESTING o Improvements to tinytest_macros.h (ad923a1) o Add a huge pile of tests for the new URI functions, and make them pass. (a5a76e6) o Unit tests for evhttp_uri_set* (bc98f5e) o Increase the skew tolerance to 2 seconds in thread/deferred_cb_skew (f806476 Christopher Davis) o Reorder backends in test.sh to match preference order in event.c (ece974f) o Add a stress test for getaddrinfo_cancel (da1bf52) o Units test for unexpected evhttp methods. (75e3320) DOCUMENTATION o Document behavior of URI parsing more thoroughly. (3a33462) o Document that two bufferevent functions only work on socket bufferevents (70e1b60) o add a requested docstring for event_rpcgen.CommandLine.__init__ (f1250eb) o Fix a mistake in http documentation found by Julien Blache (229714d) o Add a basic example of how to write a static HTTP server. (4e794d5) o Document event_get_assignment (88be27d) o Note that reentrant calls to libevent from logging cbs may fail badly (e431bcd) o Clarify EVLOOP_* documentation to be more precise. (057a514) CLEANUPS o Simplify the logic for choosing EPOLL_CTL_ADD vs EPOLL_CTL_MOD (2c66983) o Rename "size" variables in win32select that were really fd counts. (b6a158c) o Fix even more win64 warnings (7484df6) o Fix even more win64 warnings: buffer, event_tagging, http, evdns, evrpc (545a611) o Fix more wn64 warnings. (34b84b9 Christopher Davis) o Use the label_len local variable in evdns instead of recalculating it over and over (ba01456) o Fix some irix compilation warnings spotted by Kevin Bowling (7bcace2) Changes in 2.0.8-rc (14 Oct 2010): [Autogenerated from the Git log, sorted and cleaned by hand.] NEW APIS o Add error callback to evconnlistener (c4be8d8 Simon Perreault) o Add a LEV_OPT_THREADSAFE option for threadsafe evconnlisteners (127d4f2) CHANGED BEHAVIOR o Correct logic on disabling underlying bufferevents when disabling a filter (ac27eb8) BUGFIXES o Obey enabled status when unsuspending (040a019 Simon Perreault) o Warn when using the error-prone EV_SIGNAL interface in an error-prone way. Also, fix a couple of race conditions in signal.c (720bd93) O Make default signal backend fully threadsafe (95a7d41) o Put internal events at highest priority (90651b3) o Fix warnings in the main codebase flagged by -Wsigned-compare (9c8db0, 5e4bafb, 5c214a, 6be589a, e06f514) o Fix compile in kqueue.c (b395392 Sebastian Hahn) o Do not search outside of the system directory for windows DLLs (d49b5e3) o Fix a spurious-call bug on epoll.c (0faaee0) o Send a shutdown(SHUT_WR) before closing an http connection (e0fd870 Christopher Davis) o Fix warnings on mingw with gcc 4.5 (5b7a370) o Fix an EINVAL on evbuffer_write_iovec on OpenSolaris. (fdc640b) o Fix allocation error for IOCP listeners. Probably harmless, since struct event is big (481ef92) o Make iocp/listener/error work; don't accept again if lev is disabled. (62b429a Christopher Davis) o Handle rate-limiting for reading on OpenSSL bufferevents correctly. (819b171) o Fix serious bugs in per-bufferevent rate-limiting code (34d64f8) o Avoid spurious reads from just-created open openssl bufferevents (223ee40) o Fix a case where an ssl bufferevent with CLOSE_ON_FREE didn't close its fd (93bb7d8) o The corrected bufferevent filter semantics let us fix our openssl tests (34331e4) TESTING o Make SSL tests cover enabling/disabling EV_READ. (a5ce9ad) o Bump to the latest version of tinytest (f0bd83e) o Unit tests for listener error callbacks (045eef4) o New unit test for ssl bufferevents starting with connected SSLs. (02f6259) DEBUGGABILITY o Make debugging output for epoll backend more comprehensive (ec2b05e) o Make event.c debugging messages report fds (e119899) o Make the --enable-gcc-warnings option include signed comparison warnings (d3b096c) DEADCODE REMOVAL o Remove the now-useless evsig_caught and evsig_process (4858b79) o Remove event_base.evsigbase; nothing used it. (38d0960) Changes in 2.0.7-rc (9 Sep 2010): [Autogenerated from the Git log, sorted and cleaned by hand.] NEW APIS o Expose a evdns_base_nameserver_sockaddr_add() function to add a nameserver by sockaddr (1952143) o Add event_config_set_num_cpus_hint() for tuning win32 IOCP thread pools, etc. (2447fe8 Christopher Davis) BUGFIXES o Fix a nasty dangling-event bug when using rate-limiting groups (0bffe43) o Clean up syntax on TAILQ_ENTRY() usage to build correctly with recent MSVC (60433a0 Gilad Benjamini) o Make definition of WIN32_LEAN_AND_MEAN in event.h conditional (3920172 Gilad Benjamini) o Correctly detect failure to delete bufferevent read-timeout event (da6e7cd) o Set close-on-exec bit for filedescriptors created by dns subsystem (d0b8843) o Fix kqueue correctness test on x84_64 (6123d12) o Detect events with no ev_base; warn instead of crashing (f1074b7) o Fix an issue with forking and signal socketpairs in select/poll backends (d61b2f3) o Stop using global arrays to implement the EVUTIL_ctype functions (1fdec20) o On windows, make lock/thread function tables static (5de2bcb) o Close th_notify_fds and open a new pair on reinit (495ed66) o Declare signal handler function as "__cdecl" on Windows (f0056d0) o Use the _func() replacements for open, fstat, etc in evutil.c on win32 (e50c0fc) o Only process up to MAX_DEFERRED deferred_cbs at a time (17a14f1 Christopher Davis) THREADING BUGFIXES o Avoid deadlock when activating signals (970e6ad) o Add a condition variable backend, with implementations for pthreads and win32 (d4977b5) o Use conditions instead of current_event_lock to fix a deadlock (e0972c2) o Fix logic error in win32 TRY_LOCK that caused problems with rate-limiting (4c32b9d) o Avoid needlessly calling evthread_notify_base() when the loop is not running (c7a06bf) o Minimize calls to base_notify implementation functions, thereby avoiding needless syscalls (4632b78) IOCP BUGFIXES o IOCP-related evbuffer fixes (03afa20 Christopher Davis) o Stop IOCP when freeing the event_base (d844242 Christopher Davis) o Some IOCP bufferevent tweaks (76f7e7a Christopher Davis) TESTS o Make the regress_pthread.c tests work on windows with current test APIs (d74ae38) o Add a unit test for conditions (5fb1095) o Allow more than one copy of regression tests to run at once (a97320a) o Fix event_del(0) instance in bench.c (b0f284c Shuo Chen) o Fix a few memory leaks in the tests (1115366) o IOCP-related unit test tweaks (499452f Christopher Davis) o Improve testing of when thread-notification occurs (ce85280) BUILD AND DISTRIBUTION o Add pkgconfig files for libevent_{openssl,pthreads} (ebcb1f0) o Change include order in Makefile.nmake (4022b28) o Make include/event2/event-config.h not included in source dist (a4af9be) o Honor NDEBUG; build without warnings with NDEBUG; make NDEBUG always-off in unit test code (743f866) o Declare evkeyvalq and event_list even if event_struct.h comes before sys/queue.h (d3ceca8) o Move evkeyvalq into a separate header for evhttp_parse_query users (ca9048f) o Prefer autoreconf -ivf to manual autogen.sh (7ea8e89) CLEANUP o Completely remove the (mostly-removed) obsolete thread functions (3808168) o Rename regress_pthread.c to regress_thread.c (041989f) o Make defer-internal.h use lock macros, not direct calls to lock fns (5218d2a) DOCUMENTATION o Document that DNS_NO_SEARCH is an obsolete alias for DNS_QUERY_NO_SEARCH (33200e7) o Update the whatsnew-2.0.txt document (4991669) Changes in 2.0.6-rc (6 Aug 2010): [Autogenerated from the Git log, sorted by hand.] DOCUMENTATION o Document a change in the semantics of event_get_struct_event_size() (e21f5d1) o Add a comment to describe our plan for library versioning (9659ece) o Fix sentence fragment in docs for event_get_struct_event_size() (7b259b6) NEW FEATURES AND INTERFACE CHANGES o Remove the obsolete evthread interfaces (c5bab56) o Let evhttp_send_error infer the right error reasons (3990669) o Add a function to retrieve the other side of a bufferevent pair (17a8e2d) o Add bufferevent_lock()/bufferevent_unlock() (215e629) o Stop asserting when asked for a (unsupported) TCP dns port. Just return NULL. (7e87a59) o Replace (unused,always 0) is_tcp argument to evdns_add_server_port*() with flags (e1c1167) o Constify a couple of arguments to evdns_server_request_add_*_reply (cc2379d) o Add an interface to expose min_share in ratelimiting groups (6ae53d6) BUGFIXES o Avoid event_del on uninitialized event in event_base_free (6d19510) o Add some missing includes to fix Linux build again (75701e8) o Avoid close of uninitialized socket in evbuffer unit test (bda21e7) o Correctly recognize .255 addresses as link-local when looking for interfaces (8c3452b) o If no evdns request can be launched, return NULL, not a handle (b14f151) o Use generic win32 interfaces, not ASCII-only ones, where possible. (899b0a3) o Fix the default HTTP error template (06bd056 Felix Nawothnig) o Close the file in evutil_read_file whether there's an error or not. (0798dd1 Pierre Phaneuf) o Fix possible nullptr dereference in evhttp_send_reply_end() (29b2e23 Felix Nawothnig) o never let bufferevent_rlim functions return negative (0859870) o Make sample/hello_world work on windows (d89fdba) o Fix a deadlock related to event-base notification. Diagnosed by Zhou Li, Avi Bab, and Scott Lamb. (17522d2) o Possible fix to 100% cpu usage with epoll and openssl (cf249e7 Mike Smellie) o Don't race when calling event_active/event_add on a running signal event (fc5e0a2) o Suppress a spurious EPERM warning in epoll.c (e73cbde) o Fix wrong size calculation of iovec buffers when exact=1 (65abdc2 niks) o Change bufferevent_openssl::do_write so it doesn't call SSL_write with a 0 length buffer (c991317 Mike Smellie) o Fixed compilation of sample/le-proxy.c on win32 (13b912e Trond Norbye) o Fix rate-limit calculation on openssl bufferevents. (009f300) o Remember to initialize timeout events for bufferevent_async (de1f5d6 Christopher Davis) BUILD AND DISTRIBUTION CHANGES o Test the unlocked-deferred callback case of bufferevents (dfb75ab) o Remove the now-unusable EVTHREAD_LOCK/UNLOCK constants (fdfc3fc) o Use -Wlogical-op on gcc 4.5 or higher (d14bb92) o Add the libtool-generated /m4/* stuff to .gitignore (c21c663) o Remove some automake-generated files from version control. (9b14911) o Have autogen.sh pass --force-missing to automake (8a44062) o Set library version for libevent_pthreads correctly (b2d7440) o Really only add libevent_core.la to LIBADD on mingw (1425003 Sebastian Hahn) o Build more cleanly with NetBSDs that dislike toupper(char) (42a8c71) o Fix unit tests with -DUSE_DEBUG enabled (28f31a4) o Fix evdns build with -DUNICODE (5fa30d2) o Move event-config.h to include/event2 (ec347b9) TESTING o Add options to test-ratelim.c to check its results (2b44dcc) o Make test-ratelim clean up after itself better. (b5bfc44) o Remove the now-obsolete setup_test() and cleanup_test() functions (e73f1d7) o Remove all non-error prints from test/regress.c (8bc1e3d) o Make test.sh exit with nonzero status if tests fail (faf2a04) o Have the unit tests report errors from test.sh (3689bd2) o Fix logic in correcting high values from FIONREAD (3467f2f) o Add test for behavior on remote socket close (44d57ee) o Unit test for event_get_struct_event_size() (7510aac) o Make test/test.sh call test-changelist (7c92691) o Fix badly-behaved subtest of dns/bufferevent_connect_hostname (840a72f Joachim Bauch) o Add option to test-ratelim to test min_share (42f6b62) o Fix an assertion bug in test-ratelim (b2c6202) o Make tests quieter on local dns resolver failure (e996b3d) o Increase the tolerance in our unit tests for sloppy clocks. (170ffd2) o Use AF_INET socketpair to test sendfile on Solaris (9b60209) o Make test-changelist count cpu usage right on win32 (ea1ea3d) INTERNALS, PERFORMANCE, AND CODE CLEANUPS o Mark the event_err() functions as __attribute__((noreturn)) (33bbbed) o Do not check that event_base is set in EVBASE_ACQUIRE_LOCK (218a3c3) o Replace (safe) use of strcpy with memcpy to appease OpenBSD (caca2f4) o Remove some dead assignments (47c5dfb) o Fix a pedantic gcc 4.4 warning in event2/event.h (276e7ee) o Drain th_notify_fd[0] more bytes at a time. (a5bc15b) o Tidy up the code in evthread_make_base_notifiable a little (61e1eee) o Pass flags to fcntl(F_SETFL) and fcntl(F_SETFD) as int, not long (7c2dea1) o Remove unused variables in test/test-changelist.c (b00d4c0) o Fix whitespace. (cb927a5) o Improve error message for failed epoll to make debugging easier. (9e725f7) o Turn our socketpair() replacement into its own function (57b30cd) Changes in 2.0.5-beta (10 May 2010): [Autogenerated from the Git log, sorted by hand.] DOCUMENTATION o Update all our copyright notices to say "2010" (17efc1c) o Add Christopher Clark and Maxim Yegorushkin to the LICENSE file (38b7b57) o Clarify Christopher Clark's status as writer of original ht code. (78772c3) o Try to comment some of the event code more (cdd4c49) o Add a few more evmap/changelist comments (c247adc) o Add a comment to explain why evdns_request is now separte from request (ceefbe8) o Document evutil_secure_rng_init() and evutil_secure_rng_add_bytes() (a5bf43a) o Stop distributing and installing manpages: they were too inaccurate (7731ec8) NEW FEATURES AND INTERFACE CHANGES o Remove signal_assign() and signal_new() macros. (2fac0f7) o Make evdns use the regular logging system by default (b2f2be6) o Allow evbuffer_read() to split across more than 2 iovecs (e470ad3) o Functions to manipulate existing rate limiting groups. (ee41aca) o Functions to track the total bytes sent over a rate limit group. (fb366c1) o Detect and refuse reentrant event_base_loop() calls (b557b17) o Limit the maximum number of events on each socket to 65535 (819f949) o Add evbuffer_copyout to copy data from an evbuffer without draining (eb86c8c) o Expose the request and reply members of rpc_req_generic() (07edf78 Shuo Chen) o Add void* arguments to request_new and reply_new evrpc hooks (755fbf1 Shuo Chen) o Seed the RNG using sysctl() as well as /dev/urandom (71fc3eb) o Make evutil_secure_rng_init() work even with builtin arc4random (f980716) o Report DNS error when lookup fails during bufferevent_socket_connect_hostname. (0ef4070 Christopher Davis) o Release locks on bufferevents while executing callbacks (a5208fe Joachim Bauch) o Make debug mode catch mixed ET and non-ET events on an fd (cb67074) o Catch attempts to enable debug_mode too late (9ecf0d4) o Refuse null keys in evhttp_parse_query() (953e229 Frank Denis) BUGFIXES o Avoid a spurious close(-1) on Linux (70a44b6) o Do not close(-1) when freeing an uninitialized socket bufferevent (b34abf3) o Free evdns_base->req_heads on evdns_base_free (859af67) o Avoid an (untriggerable so far) crash bug in bufferevent_free() (0cf1431) o Set mem_offset for every bufferevent type (657d1b6) o Fix infrequent memory leak in bufferevent_init_common(). (8398641 Jardel Weyrich) o Make evutil_signal_active() match declaration. (e1e703d Patrick Galbraith) o Fix minheap code to use replacement malloc functions (a527618) o Fix a free(NULL) in minheap-internal.h (6f20492) o Fix critical bug in evbuffer_write when writev is not available (cda56ab) o Make the no_iovecs case of write_atmost compile (8e227b0) o Fix a memory leak when appending/prepending to a buffer with unused space. (45068a3) o Clean up a mistake in pointer manipulation in evbuffer_remove (28bfed4 Christopher Davis) o Always round up when there's a fractional number of msecs. (8f9e60c Christopher Davis) o Fix compiler warnings under WIN32 (d469c50 Giuseppe Scrivano) o Clean up properly when adding a signal handler fails. (b84b598 Gilad Benjamini) o Ensure that evdns_request is a persistent handle. (15bb82d Christopher Davis) o Free search state when finished searching to avoid an infinite loop. (a625840 Christopher Davis) o Assert for valid requests as necessary. (67072f3 Christopher Davis) o do not leak the request object on persistent connections (9d8edf2) o Make evdns logging threadsafe (b1c7950) o Fix a couple of bugs in the BSD sysctl arc4seed logic (a47a4b7) o Remove one last bug in last_with_datap logic. Found with valgrind (d49b92a) o fix a leak when unpausing evrpc requests (94ee125) o Fix a memory leak when unmarshalling RPC object arrays (f6ab2a2) o Fix compilation when openssl support is disabled (40c301b) o Allow empty reason line in HTTP status (739e688 Pierre Phaneuf) o Fix a compile warning introduced in 739e688 (bd1ed5f Sebastian Hahn) o Fix nonstandard TAILQ_FOREACH_REVERSE() definition (71afc52 Frank Denis) o Try /proc on Linux as entropy fallback; use sysctl as last resort (20fda29) o Fix symbol conflict between mm_*() macros and libmm (99e50e9) o Fix some crazy macro mistakes in arc4random.c (90d4225) o Make evbuffer_add_file() work on windows (dcdae6b) o Fix unused-variable warning when building with threads disabled (ad811cd) o Numerous opensolaris compilation fixes (c44de06) o Fix getaddrinfo with protocol unset on Solaris 9. Found by Dagobert Michelsen (2cf2a28) o Fix another nasty solaris getaddrinfo() behavior (3557071) o Define _REENTRANT as needed on Solaris, elsewhere (c1cd32a) o Fix some autoconf issues on OpenBSD (7c519df) BUILD AND DISTRIBUTION CHANGES o Distribute libevent.pc.in, not libevent.pc (22aff04) o Avoid errors in evutil.c when building with _UNICODE defined (b677032 Brodie Thiesfield) o Avoid errors in http.c when building with VC 2003 .NET (13e4f3b Brodie Thiesfield) o Support the standard 'make check' target in place of 'make verify' (426c8fb) o Remove redundant stuff from EXTRA_DIST (b660edf) o Switch to using AM conditionals in place of AC_LIBOBJ (2e898f5) o Remove an orphaned RELEASE flag in Makefile.am (0794b0d) o Give a better warning for bad automake versions. (77c917d) o Use dist_bin_SCRIPTS, not EXTRA_DIST, to distribute scripts (9eb2fd7) o Never test for select() on windows (3eb044d Trond Norbye) o Do not inhibit automake dependencies generation (10c4c90 Giuseppe Scrivano) o Create shared libraries under Windows (3cbca86 Giuseppe Scrivano) o Add ctags/etags files to .gitignore (0861d17) o Only specify -no-undefined on mingw (25433b9) o Only add libevent_core.la to LIBADD on mingw (fdc6297) TESTING o Get bench_http to work on Windows; add a switch to enable IOCP. (4ac38a5 Christopher Davis) o VC has no getopt(), so do without in bench_http. (1273d2f Christopher Davis) o Fix an obnoxious typo in the bufferevent_timeout_filter test (0d047c3) o Fix a write of uninitialized RAM in regression tests (68dc742) o Fix some memory leaks in the unit tests (274a7bd) o Make 'main/many_events' test 70 fds, not 64. (33874b0) o Unit-test every evbuffer_add_file() implementation. (06a4443) o Add more unit tests for evbuffer_expand (8c83e99) o Test another case of evbuffer_prepend (1234b95) o Fix a possible double-free bug in SSL bufferevents with CLOSE_ON_FREE (7501895) o Add dns/search_cancel unit test. (39b870b Christopher Davis) o Make http_base_test stop leaking an event_base. (96730d3) o Detect broken unsetenv at unit-test runtime (f37cd4c) o Implement regress_make_tempfile on win32 to test evbuffer_add_file (b4f12a1) o add more (currently skipped) add_file tests on win32 (05de45d) o Fix bench_http build on win32. (384d124) o Make unit test for add_file able to tell "error" from "done" (88a543f) o Make test for bufferevent_connect_hostname system-neutral (f89168e) o Make test.sh support mingw/msys on win32 (0ee6f6c) o Fix test.sh on freebsd (3d9e05b) INTERNALS, PERFORMANCE, AND AND CODE CLEANUPS o Improve the speed of evbuffer_readln() (cc1600a) o more whitespace normalization (2c2618d) o Revise evbuffer to add last_with_data (2a6d2a1) o Use last_with_data in place of previous_to_last (c8ac57f) o Remove previous_to_last from evbuffer (6f47bd1) o Fix last_with_data compilation on windows (1e7b986) o Add some glass-box tests for the last_with_data code. (17da042) o Improve robustness for refcounting (f1bc125) o Remove a needless min_heap_shift_up_() call (7204b91) o Increase MIN_BUFFER_SIZE to 512 (1024 on 64-bit) (2014ae4) o Do not use evbuffer_expand() to add the first chain to a buffer (5c0ebb3) o Make evbuffer_prepend handle empty buffers better (c87272b) o Replace last_with_data with a slightly smarter version (b7442f8) o Turn the increasingly complex *_CHAIN() macros into functions (96865c4) o Rewrite evbuffer_expand and its users (d5ebcf3) o Add evutil_tv_to_msec for safe conversion of timevals to milliseconds. (850c3ff Christopher Davis) o Initialize last_with_datap correctly in evbuffer_overlapped (a0983b6) o Replace EVUTIL_CLOSESOCKET macro with a function (899c1dc Sebastian Sjöberg) o Move domain search state to evdns_request. (beaa14a Christopher Davis) o Remove redundant checks for lock!=NULL before calling EVLOCK_LOCK (50ec59f) o Rename current_base symbol to event_global_current_base_ (c16e684) o Fix whitespace in evutil.c (935e150) o Replace users of "int fd" with "evutil_socket_t fd" in portable code (c7cf6f0) Changes in 2.0.4-alpha (28 Feb 2010): [Autogenerated from the Git log, sorted by hand.] DOCUMENTATION o Add stub header for 2.0.4-alpha changelog. (94d0065) o Improve the README with more information and links. (0b42726) o Add more people who wrote patches to the acknowledgments (0af10d5) o Add a warning about the use of event_initialized. (f32b575) o Add a LICENSE file so people can find our license easily (7067006) o Add a new "hello world" sample program (becb9f9) o Clarify status of example programs (d60a1bd) o Update time-test.c to use event2 (f4190bf) o Add the arc4random.c license to the LICENSE file. (e15e1e9) NEW FEATURES AND INTERFACE CHANGES o Improved optional lock debugging. (0cd3bb9) o Rate-limiting for bufferevents; group and individual limits are supported. (737c9cd) o Testing code for bufferevent rate-limiting. (f0c0124) o Make the initial nameserver probe timeout configurable. (1e56a32) o Revise the locking API: deprecate the old locking callbacks and add trylock. (347952f) o Do not make bufferevent_setfd implicitly disable EV_READ and EV_WRITE. (8274379) o Do not ignore bufferevent_enable(EV_READ) before bufferevent_connect(). (4a5b534) o Introduced evutil_make_socket_closeonexec() to preserve fd flags for F_SETFD. (d0939d2 Jardel Weyrich) o evdns_getaddrinfo() now supports the /etc/hosts file. (72dd666) o Look at the proper /etc/hosts file on windows. (66c02c7) o Allow http connections to use evdns for hostname looksups. (c698b77) o Changelist code to defer event changes until just before dispatch (27308aa) o do not use a function to assign the evdns base; instead assign it via evhttp_connection_base_new() which is a new function introduced in 2.0 (5032e52) o Functions to access more fields of struct event. (0683950) o Make kqueue use changelists. (45e5ae3) o Remove kqueue->pend_changes. (3225dfb) o Minimize epoll_ctl calls by using changelist (c8c6a89) o Add support for a "debug mode" to try to catch common errors. (cd17c3a) o Note a missing ratelim function (361da8f) o Add ev_[u]intptr_t to include/event2/util.h (1fa4c81) o const-ify a few more functions in event.h (d38a7a1) o Deprecate EVENT_FD and EVENT_SIGNAL. (f6b2694) o Remove EVUTIL_CHECK_FMT. (6c21c89) o Add EV_*_MAX macros to event2/util.h to expose limits for ev_* types. (aba1fff) o Functions to view and manipulate rate-limiting buckets. (85047a6) o Add the rest of the integer limits, and add a test for them. (60742d5) o Remove the 'flags' argument from evdns_base_set_option() (1dd7e6d) o Add an arc4random implementation for use by evdns (d4de062) o Use off_t for the length parameter of evbuffer_add_file (3fe60fd) o Construct Windows locks using InitializeCriticalSectionAndSpinCount (32c6f1b) o Expose view of current rate limit as constrained by group limit (162ce8a) o Provide consistent, tested semantics for bufferevent timeouts (d328829) BUGFIXES AND TESTS o Tolerate code that returns from a fatal_cb. (91fe23f) o Parenthesize macro arguments more aggressively (07e9e9b) o Fix memory-leak of signal handler array with kqueue. (e1ffbb8) o Stop passing EVTHREAD_READ and EVTHREAD_WRITE to non-rw locks. (76cd2b7) o Fix two use-after-free bugs in unit tests spoted by lock debugging (d84d838) o Fix a locking bug in event_base_loop() (da1718b) o Fix an evdns lock violation. (2df1f82 Zhuang Yuyao) o Valgrind fix: Clear struct kevent before checking for OSX bug. (56771a3 William Ahern) o Fix up evthread compilation on windows (bd6f1ba Roman Puls) o Fix regress_iocp.c usage of old lock allocation macros. (31687b4 unknown) o Update nmake makefile to build evthread.c (b62d979 unknown) o Fix a crash when reading badly formatted resolve.conf; from Yasuoka Masahiko (6c7c579 Yasuoka Masahiko) o Fix a snow leopard compile warning in the unit tests. (7ae9445) o Fix compile on Snow Leopard with gcc warnings enabled (70cdfe4 Sebastian Hahn) o Only define _GNU_SOURCE if it is not already defined. (ea6b1df Joachim Bauch) o Update sample/signal-test.c to use newer APIs and not leak. (f6430ac Evan Jones) o Fix a segfault when writing a very fragmented evbuffer onto an SSL (a6adeca Joachim Bauch) o Fix a segfault when freeing SSL bufferevents in an unusual order (a773df5 Joachim Bauch) o Drop install-sh from our git repo: a mismatched version could break "make dist" (6799527) o Set all instances of the version number correctly. (5a112d3) o Fix a few locking issues on windows. (c51bb3c unknown) o Use evutil_socket_t, not int, when logging socket errors. (292467c) o Fix up behavior of never-defered callbacks a little (390e056) o Replace some cases of uint32_t with ev_uint32_t. (a47d88d) o Fix compilation of devpoll.c by adding missing thread includes. (fee2c77 Dagobert Michelsen) o Make evutil_make_socket_nonblocking() leave any other flags alone. (4c8b7cd Jardel Weyrich) o Fix an fd leak in evconnlistener_new_bind(). (24fb502 Jardel Weyrich) o Fix a bogus free in evutil_new_addrinfo() (0d64051 Jardel Weyrich) o Adjusted fcntl() retval comparison on evutil_make_socket_nonblocking(). (4df7dbc Jardel Weyrich) o Fix the code that allowed DNS options to not end with : (ee4953f) o Fix crash bugs when a bufferevent's eventcb is not set. (2e8eeea) o Fix test-ratelim compilation on Linux. (885b427) o Fix compilation of rate-limiting code on win32. (165d30e) o Eradicated the last free() call. Let mm_free() take care of deallocation. (0546ce1 Jardel Weyrich) o Fix byte counts when mixing deferred and non-deferred evbuffer callbacks. (29151e6) o Fixed a memory leak on windows threads implementation. The CRITICAL_SECTION was not being free'd in evthread_win32_lock_free(). (2f33e00 Jardel Weyrich) o Fixed a fd leak in start_accepting(), plus cosmetic changes (4367a33 Jardel Weyrich) o Improved error handling in evconnlistener_new_async(). Also keeping the fd open because it is not opened by this function, so the caller is responsible for closing it. Additionally, since evconnlistener_new_bind() creates a socket and passes it to the function above, it required error checking to close the same socket. (fec66f9 Jardel Weyrich) o Don't use a bind address for nameservers on loopback (8d4aaf9) o Fix compilation of rate-limit code when threading support is disabled (97a8c79) o Detect setenv/unsetenv; skip main/base_environ test if we can't fake them. (7296971) o Check more internal event_add() calls for failure (ff3f6cd) o Fix windows and msvc build (5c7a7bc) o Call event_debug_unassign on internal events (a19b4a0) o Try to fix a warning in hash_debug_entry (137f2c6) o Fix a dumb typo in ev_intptr_t definitions. (27c9a40) o do not fail while sending on http connections the client closed. (93d7369) o make evhttp_send() safe against terminated connections, too (3978180) o Make Libevent 1.4.12 build on win32 with Unicode enabled. (000a33e Brodie Thiesfield) o Fix some additional -DUNICODE issues on win32. (a7a9431) o Add a check to make soure our EVUTIL_AI flags do not conflict with the native ones (c18490e) o Always use our own gai_strerror() replacement. (6810bdb) o Make RNG work when we have arc4random() but not arc4random_buf() (4ec8fea) o validate close cb on server when client connection closes (2f782af) o Fix two unlocked reads in evbuffer. (7116bf2) o When working without a current event base, don't try to use IOCP listeners (cb52838) o Fix getpid() usage on Windows (ff2a134) o Add a unit test for secure rng. (48a29b6) o Add some headers to fix freebsd compilation (b72be50) o When connect() succeeds immediately, don't invoke the callback immediately. (7515de9) o Suspend read/write on bufferevents during hostname lookup (db08f64) o Make bufferevent_free() clear all callbacks immediately. (b2fbeb3) o Fix some race conditions in persistent events and event_reinit (e2642f0) o Fix a bug in resetting timeouts on persistent events when IO triggers. (38ec0a7) o Add a test for timeouts on filtering bufferevents. (c02bfe1) o Add test for periodic timers that get activated for other reasons (8fcb7a1) o Use new timeval diff comparison function in bufferevent test (f3dfe46) o Delete stack-alloced event in new unit test before returning. (7ffd387) o Fix mingw compilation (23170a6) o Try to define a sane _EVENT_SIZEOF_SIZE_T for msvc compilation (1e14f82) o Fix arc4random compilation on MSVC. (98edb89) o deal with connect() failing immediately (7bc48bf) o Small cleanups on freebsd-connect-refused patch. (57b7248) BUILD AND DISTRIBUTION CHANGES o Remove the contents of WIN32-Prj as unmaintained. (c69d5a5) o Allow the user to redirect the verbose output of test/test.sh to a file (c382de6) o Allow test.sh to be run as ./test/test.sh (7dfbe94) o Never believe that we have pthreads on win32, even if gcc thinks we do. (78ed097) o Make it compile under gcc --std=c89. (e2ca403) o Fix a number of warnings from gcc -pedantic (918e9c5) o Add the msvc-generated .lib files to .gitignore. (e244a2e) o Add the "compile" script to gitignore. (1ba6bed) INTERNALS AND CODE CLEANUPS o Add a .gitignore file. (ba34071) o New EVTHREAD_TRY_LOCK function to try to grab a lock. (689fc09) o Add the abilitity to mark some buffer callbacks as never-deferred. (438f9ed) o Refactor our 'suspend operation' logic on bufferevents. (0d744aa) o Simplify the read high-watermark checking. (5846bf6) o Improve readability of evutil_unparse_protoname() (5a43df8 Jardel Weyrich) o Expose our cached gettimeofday value with a new interface (47854a8) o Whitespace fixes in test.sh (0b151a9) o Enable branch-prediction hints with EVUTIL_UNLIKELY. (eaaf27f) o Refactor code from evdns into a new internal "read a file" function. (0f7144f) o Comestic changes in evconnlistener_new(), new_accepting_socket(), accepted_socket_invoke_user_cb() and iocp_listener_enable(). (510ab6b Jardel Weyrich) o Add unit-test for bad_request bug fixed in 1.4 recently. (6cc79c6 Pavel Plesov) o Add a comment on evthread_enable_lock_debuging. (b9f43b2) o Fix test.sh on shells without echo -n (94131e9) o More unit tests for getaddrinfo_async: v4timeout and cancel. (a334b31) o Make http use evconnlistener. (ec34533) o move dns utility functions into a separate file so that we can use them for http testing (b822639) o add a test for evhttp_connection_base_new with a dns_base (26714ca) o forgot to add void to test function (78a50fe) o Add a forgotten header (changelist-internal.h) (4b9f307) o Remove some commented-out code in evutil (26e1b6f) o Remove a needless include of rpc_compat.h (70a4a3e) o Use less memory for each entry in a hashtable (a66e947) o Try to untangle the logic in server_port_flush(). (439aea0) o Use ev_[u]intptr_t types in place of [u]intptr_t (cef61a2) o Reduce windows header includes in our own headers. (da6135e) o clean up terminate_chunked test (e8a9782) o Increment the submicro version number. (63e868e) o Update event-config.h version number to match configure.in (aae7db5) o Clean up formatting: Disallow space-before-tab. (8fdf09c) o Clean up formatting: use tabs, not 8-spaces, to indent. (e5bbd40) o Clean up formatting: remove trailing spaces (e5cf987) o Clean up formatting: function/keyword spacing consistency. (4faeaea) Changes in 2.0.3-alpha (20 Nov 2009): o Add a new code to support SSL/TLS on bufferevents, using the OpenSSL library (where available). o Fix a bug where we didn't allocate enough memory in event_get_supported_methods(). o Avoid segfault during failed allocation of locked evdns_base. (Found by Rocco Carbone.) o Export new evutil_ascii_* functions to perform locale-independent character type operations. o Try to compile better with MSVC: patches from Brodie Thiesfield o New evconnlistener_get_fd function to expose a listener's associated socket. o Expose an ev_socklen_t type for consistent use across platforms. o Make bufferevent_socket_connect() work when the original fd was -1. o Fix a bug in bufferevent_socket_connect() when the connection succeeds too quickly. o Export an evutil_sockaddr_cmp() to compare to sockaddr objects for equality. o Add a bufferevent_get_enabled() to tell what a bufferevent has been configured to do. o Add an evbuffer_search_eol() function to locate the end of a line nondestructively. o Add an evbuffer_search_range() function to search a bounded range of a buffer. o Fix a rare crash bug in evdns. o Have bufferevent_socket_connect() with no arguments put a bufferevent into connecting mode. o Support sendfile on Solaris: patch from Caitlin Mercer. o New functions to explicitly reference a socket used by an evhttp object. Patches from David Reiss. o When we send a BEV_EVENT_CONNECTED to indicate connected status, we no longer invoke the write callback as well unless we actually wrote data too. o If the kernel tells us that there are a negative number of bytes to read from a socket, do not believe it. Fixes bug 2841177; found by Alexander Pronchenkov. o Do not detect whether we have monotonic clock support every time a new event base is created: instead do it only once. Patch taken from Chromium. o Do not allocate the maximum event queue for the epoll backend at startup. Instead, start out accepting 32 events at a time, and double the queue's size when it seems that the OS is generating events faster than we're requesting them. Saves up to 374K per epoll-based event_base. Resolves bug 2839240. o Treat an event with a negative fd as valid but untriggerable by Libevent. This is useful for applications that want to manually activate events. o Fix compilation on Android, which forgot to define fd_mask in its sys/select.h o Do not drop data from evbuffer when out of memory; reported by Jacek Masiulaniec o New event_base_got_exit() and event_base_got_break() functions to tell whether an event loop exited because of an event_base_loopexit() or an event_base_loopbreak(). Patch from Ka-Hing Cheung. o When adding or deleting an event from a non-main thread, only wake up the main thread when its behavior actually needs to change. o Fix some bugs when using the old evdns interfaces to initialize the evdns module. o Detect errors during bufferevent_connect(). Patch from Christopher Davis. o Fix compilation for listener.h for C++ - missing extern "C". Patch from Ferenc Szalai. o Make the event_base_loop() family of functions respect thread-safety better. This should clear up a few hard-to-debug race conditions. o Fix a bug when using a specialized memory allocator on win32. o Have the win32 select() backend label TCP-socket-connected events as EV_WRITE, not EV_READ. This should bring it in line with the other backends, and improve portability. Patch from Christopher Davis. o Stop using enums as arguments or return values when what we mean is a bitfield of enum values. C++ doesn't believe that you can OR two enum values together and get another enum, and C++ takes its typing seriously. Patch from Christopher Davis. o Add an API to replace all fatal calls to exit() with a user-provided panic function. o Replace all assert() calls with a variant that is aware of the user-provided logging and panic functions. o Add a return value to event_assign so that it can fail rather than asserting when the user gives it bad input. event_set still dies on bad input. o The event_base_new() and event_base_new_with_config() functions now never call exit() on failure. For backward "compatibility", event_init() still does, but more consistently. o Remove compat/sys/_time.h. It interfered with system headers on HPUX, and its functionality has been subsumed by event2/util.h and util-internal.h. o Add a new bufferevent_socket_connect_hostname() to encapsulate the resolve-then-connect operation. o Build kqueue.c correctly on GNU/kFreeBSD platforms. Patch pulled upstream from Debian. o Alternative queue-based timeout algorithm for programs that use a large number of timeouts with the same value. o New event_base_config option to disable the timeval cache entirely. o Make EV_PERSIST timeouts more accurate: schedule the next event based on the scheduled time of the previous event, not based on the current time. o Allow http.c to handle cases where getaddrinfo returns an IPv6 address. Patch from Ryan Phillips. o Fix a problem with excessive memory allocation when using multiple event priorities. o Default to using arc4random for DNS transaction IDs on systems that have it; from OpenBSD. o Never check the environment when we're running setuid or setgid; from OpenBSD. o Options passed to evdns_set_option() no longer need to end with a colon. o Add an evutil_getaddrinfo() function to clone getaddrinfo on platforms that don't have it. o Add an evdns_getaddrinfo() function to provide a nonblocking getaddrinfo using evdns, so programs can perform useful hostname lookup. o Finally expose the IOCP-based bufferevent backend. It passes its unit tests, but probably still has some bugs remaining. Code by Nick Mathewson and Christopher Davis. o Numerous other bugfixes. o On FreeBSD and other OSes, connect can return ECONREFUSED immediately; instead of failing the function call, pretend with faileld in the callback. o Fix a race condition in the pthreads test case; found by Nick Mathewson o Remove most calls to event_err() in http and deal with memory errors instead Changes in 2.0.2-alpha (25 Jul 2009): o Add a new flag to bufferevents to make all callbacks automatically deferred. o Make evdns functionality locked, and automatically defer dns callbacks. o Fix a possible free(NULL) when freeing an event_base with no signals. o Add a flag to disable checking environment varibles when making an event_base o Disallow setting less than 1 priority. o Fix a bug when removing a timeout from the heap. [Patch from Marko Kreen] o Use signal.h, not sys/signal.h. [Patch from mmadia] o Try harder to build with certain older c99 compilers. o Make sure that an event_config's flags field is always initialized to 0. [Bug report from Victor Goya] o Avoid data corruption when reading data entirely into the second-to-last chain of an evbuffer. [Bug report from Victor Goya] o Make sendfile work on FreeBSD o Do not use vararg macros for accessing evrpc structures; this is not backwards compatible, but we did not promise any backwards compatibility for the rpc code. o Actually define the event_config_set_flag() function. o Try harder to compile with Visual C++. o Move event_set() and its allies to event2/event_compat.h where they belong. o Remove the event_gotsig code, which has long been deprecated and unused. o Add an event_get_base() function to return the base assigned to an event. o New function to automate connecting on a socket-based bufferevent. o New functions to automate listening for incoming TCP connections. o Do case-insensitive checks with a locale-independent comparison function. o Rename the evbuffercb and everrorcb callbacks to bufferevent_data_cb and bufferevent_event_cb respectively. The old names are available in bufferevent_compat.h. o Rename the EVBUFFER_* codes used by bufferevent event callbacks to BEV_EVENT_*, to avoid namespace collision with evbuffer flags. The old names are available in bufferevent_compat.h. o Move the EVBUFFER_INPUT and EVBUFFER_OUTPUT macros to bufferevent_compat.h o Add a bufferevent_getfd() function to mirror bufferevent_setfd() o Make bufferevent_setfd() return an error code if the operation is not successful. o Shave 22 bytes off struct event on 32-bit platforms by shrinking and re-ordering fields. The savings on 64-bit platforms is likely higher. o Cap the maximum number of priorities at 256. o Change the semantics of evbuffer_cb_set_flags() to be set-flag only; add a new evbuffer_cb_clear_flags() to remove set flags. o Change the interface of evbuffer_add_reference so that the cleanup callback gets more information o Revise the new evbuffer_reserve_space/evbuffer_commit_space() interfaces so that you can use them without causing extraneous copies or leaving gaps in the evbuffer. o Add a new evbuffer_peek() interface to inspect data in an evbuffer without removing it. o Fix a deadlock when suspending reads in a bufferevent due to a full buffer. (Spotted by Joachim Bauch.) o Fix a memory error when freeing a thread-enabled event base with registered events. (Spotted by Joachim Bauch.) o Try to contain degree of failure when running on a win32 version so heavily firewalled that we can't fake a socketpair. o Activate fd events in a pseudorandom order with O(N) backends, so that we don't systematically favor low fds (select) or earlier-added fds (poll, win32). o Replace some read()/write() instances with send()/recv() to work properly on win32. o Set truncated flag correctly in evdns server replies. o Raise RpcGenError in event_rpcgen.py; from jmanison and Zack Weinberg o Fix preamble of rpcgen-generated files to rely on event2 includes; based on work by jmansion; patch from Zack Weinberg. o Allow specifying the output filename for rpcgen; based on work by jmansion; patch from Zack Weinberg. o Allow C identifiers as struct names; allow multiple comments in .rpc files; from Zack Weinberg o Mitigate a race condition when using socket bufferevents in multiple threads. o Use AC_SEARCH_LIBS, not AC_CHECK_LIB to avoid needless library use. o Do not allow event_del(ev) to return while that event's callback is executing in another thread. This fixes a nasty race condition. o event_get_supported_methods() now lists methods that have been disabled with the EVENT_NO* environment options. o Rename encode_int[64] to evtag_encode_int[64] to avoid polluting the global namespace. The old method names are still available as macros in event2/tag_compat.h. Changes in 2.0.1-alpha (17 Apr 2009): o free minheap on event_base_free(); from Christopher Layne o debug cleanups in signal.c; from Christopher Layne o provide event_base_new() that does not set the current_base global o bufferevent_write now uses a const source argument; report from Charles Kerr o improve documentation on event_base_loopexit; patch from Scott Lamb o New function, event_{base_}loopbreak. Like event_loopexit, it makes an event loop stop executing and return. Unlike event_loopexit, it keeps subsequent pending events from getting executed. Patch from Scott Lamb o Check return value of event_add in signal.c o provide event_reinit() to reintialize an event_base after fork o New function event_set_mem_functinons. It allows the user to give libevent replacement functions to use for memory management in place of malloc(), free(), etc. This should be generally useful for memory instrumentation, specialized allocators, and so on. o The kqueue implementation now catches signals that are raised after event_add() is called but before the event_loop() call. This makes it match the other implementations. o The kqueue implementation now restores original signal handlers correctly when its signal events are removed. o Check return value of event_add in signal.c o Add a more powerful evbuffer_readln as a replacement for evbuffer_readline. The new function handles more newline styles, and is more useful with buffers that may contain a nul characters. o Do not mangle socket handles on 64-bit windows. o The configure script now takes an --enable-gcc-warnigns option that turns on many optional gcc warnings. (Nick has been building with these for a while, but they might be useful to other developers.) o move EV_PERSIST handling out of the event backends o small improvements to evhttp documentation o always generate Date and Content-Length headers for HTTP/1.1 replies o set the correct event base for HTTP close events o When building with GCC, use the "format" attribute to verify type correctness of calls to printf-like functions. o Rewrite win32.c backend to be O(n lg n) rather than O(n^2). o Removed obsoleted recalc code o support for 32-bit tag numbers in rpc structures; this is wire compatible, but changes the API slightly. o pull setters/getters out of RPC structures into a base class to which we just need to store a pointer; this reduces the memory footprint of these structures. o prefix {encode,decode}_tag functions with evtag to avoid collisions o fix a bug with event_rpcgen for integers o Correctly handle DNS replies with no answers set (Fixes bug 1846282) o add -Wstrict-aliasing to warnings and more cleanup o removed linger from http server socket; reported by Ilya Martynov o event_rpcgen now allows creating integer arrays o support string arrays in event_rpcgen o change evrpc hooking to allow pausing of RPCs; this will make it possible for the hook to do some meaning ful work; this is not backwards compatible. o allow an http request callback to take ownership of a request structure o allow association of meta data with RPC requests for hook processing o associate more context for hooks to query such as the connection object o remove pending timeouts on event_base_free() o also check EAGAIN for Solaris' event ports; from W.C.A. Wijngaards o devpoll and evport need reinit; tested by W.C.A Wijngaards o event_base_get_method; from Springande Ulv o Send CRLF after each chunk in HTTP output, for compliance with RFC2626. Patch from "propanbutan". Fixes bug 1894184. o Add a int64_t parsing function, with unit tests, so we can apply Scott Lamb's fix to allow large HTTP values. o Use a 64-bit field to hold HTTP content-lengths. Patch from Scott Lamb. o Allow regression code to build even without Python installed o remove NDEBUG ifdefs from evdns.c o detect integer types properly on platforms without stdint.h o udpate documentation of event_loop and event_base_loop; from Tani Hosokawa. o simplify evbuffer by removing orig_buffer o do not insert event into list when evsel->add fails o add support for PUT/DELETE requests; from Josh Rotenberg o introduce evhttp_accept_socket() to accept from an already created socket o include Content-Length in reply for HTTP/1.0 requests with keep-alive o increase listen queue for http sockets to 128; if that is not enough the evhttp_accpet_socket() api can be used with a prepared socket. o Patch from Tani Hosokawa: make some functions in http.c threadsafe. o test support for PUT/DELETE requests; from Josh Rotenberg o rewrite of the evbuffer code to reduce memory copies o Some older Solaris versions demand that _REENTRANT be defined to get strtok_r(); do so. o Do not free the kqop file descriptor in other processes, also allow it to be 0; from Andrei Nigmatulin o Provide OpenSSL style support for multiple threads accessing the same event_base o make event_rpcgen.py generate code include event-config.h; reported by Sam Banks. o switch thread support so that locks get allocated as they are needed. o make event methods static so that they are not exported; from Andrei Nigmatulin o make RPC replies use application/octet-stream as mime type o do not delete uninitialized timeout event in evdns o Correct the documentation on buffer printf functions. o Don't warn on unimplemented epoll_create(): this isn't a problem, just a reason to fall back to poll or select. o Correctly handle timeouts larger than 35 minutes on Linux with epoll.c. This is probably a kernel defect, but we'll have to support old kernels anyway even if it gets fixed. o Make name_from_addr() threadsafe in http.c o Add new thread-safe interfaces to evdns functions. o Make all event_tagging interfaces threadsafe. o Rename internal memory management functions. o New functions (event_assign, event_new, event_free) for use by apps that want to be safely threadsafe, or want to remain ignorant of the contents of struct event. o introduce bufferevent_read_buffer; allows reading without memory copy. o expose bufferevent_setwatermark via header files and fix high watermark on read o fix a bug in buffrevent read water marks and add a test for them o fix a bug in which bufferevent_write_buffer would not schedule a write event o provide bufferevent_input and bufferevent_output without requiring knowledge of the structure o introduce bufferevent_setcb and bufferevent_setfd to allow better manipulation of bufferevents o convert evhttp_connection to use bufferevents. o use libevent's internal timercmp on all platforms, to avoid bugs on old platforms where timercmp(a,b,<=) is buggy. o Remove the never-exported, never-used evhttp_hostportfile function. o Support input/output filters for bufferevents; somewhat similar to libio's model. This will allow us to implement SSL, compression, etc, transparently to users of bufferevents such as the http layer. o allow connections to be removed from an rpc pool o add new evtimer_assign, signal_assign, evtimer_new, and signal_new functions to manipulate timer and signal events, analagous to the now-recommended event_assign and event_new o switch internal uses of event_set over to use event_assign. o introduce evbuffer_contiguous_space() api that tells a user how much data is available in the first buffer chain o introduce evbuffer_reserve_space() and evbuffer_commit_space() to make processing in filters more efficient. o reduce system calls for getting current time by caching it. o separate signal events from io events; making the code less complex. o support for periodic timeouts o support for virtual HTTP hosts. o turn event_initialized() into a function, and add function equivalents to EVENT_SIGNAL and EVENT_FD so that people don't need to include event_struct.h o Build test directory correctly with CPPFLAGS set. o Provide an API for retrieving the supported event mechanisms. o event_base_new_with_config() and corresponding config APIs. o migrate the evhttp header to event2/ but accessors are still missing. o deprecate timeout_* event functions by moving them to event_compat.h o Move windows gettimeofday replacement into a new evutil_gettimeofday(). o Make configure script work on IRIX. o provide a method for canceling ongoing http requests. o Make vsnprintf() returns consistent on win32. o Fix connection keep-alive behavior for HTTP/1.0 o Fix use of freed memory in event_reinit; pointed out by Peter Postma o constify struct timeval * where possible o make event_get_supported_methods obey environment variables o support for edge-triggered events on epoll and kqueue backends: patch from Valery Kholodkov o support for selecting event backends by their features, and for querying the features of a backend. o change failing behavior of event_base_new_with_config: if a config is provided and no backend is selected, return NULL instead of aborting. o deliver partial data to request callbacks when chunked callback is set even if there is no chunking on the http level; allows cancelation of requests from within the chunked callback; from Scott Lamb. o allow min_heap_erase to be called on removed members; from liusifan. o Rename INPUT and OUTPUT to EVRPC_INPUT and EVRPC_OUTPUT. Retain INPUT/OUTPUT aliases on on-win32 platforms for backwards compatibility. o Do not use SO_REUSEADDR when connecting o Support 64-bit integers in RPC structs o Correct handling of trailing headers in chunked replies; from Scott Lamb. o Support multi-line HTTP headers; based on a patch from Moshe Litvin o Reject negative Content-Length headers; anonymous bug report o Detect CLOCK_MONOTONIC at runtime for evdns; anonymous bug report o Various HTTP correctness fixes from Scott Lamb o Fix a bug where deleting signals with the kqueue backend would cause subsequent adds to fail o Support multiple events listening on the same signal; make signals regular events that go on the same event queue; problem report by Alexander Drozdov. o Fix a problem with epoll() and reinit; problem report by Alexander Drozdov. o Fix off-by-one errors in devpoll; from Ian Bell o Make event_add not change any state if it fails; reported by Ian Bell. o Fix a bug where headers arriving in multiple packets were not parsed; fix from Jiang Hong; test by me. o Match the query in DNS replies to the query in the request; from Vsevolod Stakhov. o Add new utility functions to correctly observe and log winsock errors. o Do not remove Accept-Encoding header o Clear the timer cache on entering the event loop; reported by Victor Chang o Only bind the socket on connect when a local address has been provided; reported by Alejo Sanchez o Allow setting of local port for evhttp connections to support millions of connections from a single system; from Richard Jones. o Clear the timer cache when leaving the event loop; reported by Robin Haberkorn o Fix a typo in setting the global event base; reported by lance. o Set the 0x20 bit on outgoing alphabetic characters in DNS requests randomly, and insist on a match in replies. This helps resist DNS poisoning attacks. o Make the http connection close detection work properly with bufferevents and fix a potential memory leak associated with it. o Restructure the event backends so that they do not need to keep track of events themselves, as a side effect multiple events can use the same fd or signal. o Add generic implementations for parsing and emiting IPv6 addresses on platforms that do not have inet_ntop and/or inet_pton. o Allow DNS servers that have IPv6 addresses. o Add an evbuffer_write_atmost() function to write a limited number of bytes to an fd. o Refactor internal notify-main-thread logic to prefer eventfd to pipe, then pipe to socketpair, and only use socketpairs as a last resort. o Try harder to pack all evbuffer reads into as few chains as possible, using readv/WSARecv as appropriate. o New evthread_use_windows_threads() and evthread_use_pthreads() functions to set up the evthread callbacks with reasonable defaults. o Change the semantics of timeouts in conjunction with EV_PERSIST; timeouts in that case will now repeat until deleted. o sendfile, mmap and memory reference support for evbuffers. o New evutil_make_listen_socket_reuseable() to abstract SO_REUSEADDR. o New bind-to option to allow DNS clients to bind to an arbitrary port for outgoing requests. o evbuffers can now be "frozen" to prevent operations at one or both ends. o Bufferevents now notice external attempts to add data to an inbuf or remove it from an outbuf, and stop them. o Fix parsing of queries where the encoded queries contained \r, \n or + o Do not allow internal events to starve lower-priority events. Changes in 1.4.0: o allow \r or \n individually to separate HTTP headers instead of the standard "\r\n"; from Charles Kerr. o demote most http warnings to debug messages o Fix Solaris compilation; from Magne Mahre o Add a "Date" header to HTTP responses, as required by HTTP 1.1. o Support specifying the local address of an evhttp_connection using set_local_address o Fix a memory leak in which failed HTTP connections whould not free the request object o Make adding of array members in event_rpcgen more efficient, but doubling memory allocation o Fix a memory leak in the DNS server o Fix compilation when DNS_USE_OPENSSL_FOR_ID is enabled o Fix buffer size and string generation in evdns_resolve_reverse_ipv6(). o Respond to nonstandard DNS queries with "NOTIMPL" rather than by ignoring them. o In DNS responses, the CD flag should be preserved, not the TC flag. o Fix http.c to compile properly with USE_DEBUG; from Christopher Layne o Handle NULL timeouts correctly on Solaris; from Trond Norbye o Recalculate pending events properly when reallocating event array on Solaris; from Trond Norbye o Add Doxygen documentation to header files; from Mark Heily o Add a evdns_set_transaction_id_fn() function to override the default transaction ID generation code. o Add an evutil module (with header evutil.h) to implement our standard cross-platform hacks, on the theory that somebody else would like to use them too. o Fix signals implementation on windows. o Fix http module on windows to close sockets properly. o Make autogen.sh script run correctly on systems where /bin/sh isn't bash. (Patch from Trond Norbye, rewritten by Hagne Mahre and then Hannah Schroeter.) o Skip calling gettime() in timeout_process if we are not in fact waiting for any events. (Patch from Trond Norbye) o Make test subdirectory compile under mingw. o Fix win32 buffer.c behavior so that it is correct for sockets (which do not like ReadFile and WriteFile). o Make the test.sh script run unit tests for the evpoll method. o Make the entire evdns.h header enclosed in "extern C" as appropriate. o Fix implementation of strsep on platforms that lack it o Fix implementation of getaddrinfo on platforms that lack it; mainly, this will make Windows http.c work better. Original patch by Lubomir Marinov. o Fix evport implementation: port_disassociate called on unassociated events resulting in bogus errors; more efficient memory management; from Trond Norbye and Prakash Sangappa o support for hooks on rpc input and output; can be used to implement rpc independent processing such as compression or authentication. o use a min heap instead of a red-black tree for timeouts; as a result finding the min is a O(1) operation now; from Maxim Yegorushkin o associate an event base with an rpc pool o added two additional libraries: libevent_core and libevent_extra in addition to the regular libevent. libevent_core contains only the event core whereas libevent_extra contains dns, http and rpc support o Begin using libtool's library versioning support correctly. If we don't mess up, this will more or less guarantee binaries linked against old versions of libevent continue working when we make changes to libevent that do not break backward compatibility. o Fix evhttp.h compilation when TAILQ_ENTRY is not defined. o Small code cleanups in epoll_dispatch(). o Increase the maximum number of addresses read from a packet in evdns to 32. o Remove support for the rtsig method: it hasn't compiled for a while, and nobody seems to miss it very much. Let us know if there's a good reason to put it back in. o Rename the "class" field in evdns_server_request to dns_question_class, so that it won't break compilation under C++. Use a macro so that old code won't break. Mark the macro as deprecated. o Fix DNS unit tests so that having a DNS server with broken IPv6 support is no longer cause for aborting the unit tests. o Make event_base_free() succeed even if there are pending non-internal events on a base. This may still leak memory and fds, but at least it no longer crashes. o Post-process the config.h file into a new, installed event-config.h file that we can install, and whose macros will be safe to include in header files. o Remove the long-deprecated acconfig.h file. o Do not require #include before #include . o Add new evutil_timer* functions to wrap (or replace) the regular timeval manipulation functions. o Fix many build issues when using the Microsoft C compiler. o Remove a bash-ism in autogen.sh o When calling event_del on a signal, restore the signal handler's previous value rather than setting it to SIG_DFL. 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I hope that # covers most systems running today. This code pipes the CPU # types through head -n 1, so we only detect the type of CPU 0. ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` case "$ALPHA_CPU_TYPE" in "EV4 (21064)") UNAME_MACHINE="alpha" ;; "EV4.5 (21064)") UNAME_MACHINE="alpha" ;; "LCA4 (21066/21068)") UNAME_MACHINE="alpha" ;; "EV5 (21164)") UNAME_MACHINE="alphaev5" ;; "EV5.6 (21164A)") UNAME_MACHINE="alphaev56" ;; "EV5.6 (21164PC)") UNAME_MACHINE="alphapca56" ;; "EV5.7 (21164PC)") UNAME_MACHINE="alphapca57" ;; "EV6 (21264)") UNAME_MACHINE="alphaev6" ;; "EV6.7 (21264A)") UNAME_MACHINE="alphaev67" ;; "EV6.8CB (21264C)") UNAME_MACHINE="alphaev68" ;; "EV6.8AL (21264B)") UNAME_MACHINE="alphaev68" ;; "EV6.8CX (21264D)") UNAME_MACHINE="alphaev68" ;; "EV6.9A (21264/EV69A)") UNAME_MACHINE="alphaev69" ;; "EV7 (21364)") UNAME_MACHINE="alphaev7" ;; "EV7.9 (21364A)") UNAME_MACHINE="alphaev79" ;; esac # A Pn.n version is a patched version. # A Vn.n version is a released version. # A Tn.n version is a released field test version. # A Xn.n version is an unreleased experimental baselevel. # 1.2 uses "1.2" for uname -r. echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` # Reset EXIT trap before exiting to avoid spurious non-zero exit code. exitcode=$? trap '' 0 exit $exitcode ;; Alpha\ *:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # Should we change UNAME_MACHINE based on the output of uname instead # of the specific Alpha model? echo alpha-pc-interix exit ;; 21064:Windows_NT:50:3) echo alpha-dec-winnt3.5 exit ;; Amiga*:UNIX_System_V:4.0:*) echo m68k-unknown-sysv4 exit ;; *:[Aa]miga[Oo][Ss]:*:*) echo ${UNAME_MACHINE}-unknown-amigaos exit ;; *:[Mm]orph[Oo][Ss]:*:*) echo ${UNAME_MACHINE}-unknown-morphos exit ;; *:OS/390:*:*) echo i370-ibm-openedition exit ;; *:z/VM:*:*) echo s390-ibm-zvmoe exit ;; *:OS400:*:*) echo powerpc-ibm-os400 exit ;; arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) echo arm-acorn-riscix${UNAME_RELEASE} exit ;; arm*:riscos:*:*|arm*:RISCOS:*:*) echo arm-unknown-riscos exit ;; SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) echo hppa1.1-hitachi-hiuxmpp exit ;; Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. if test "`(/bin/universe) 2>/dev/null`" = att ; then echo pyramid-pyramid-sysv3 else echo pyramid-pyramid-bsd fi exit ;; NILE*:*:*:dcosx) echo pyramid-pyramid-svr4 exit ;; DRS?6000:unix:4.0:6*) echo sparc-icl-nx6 exit ;; DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) case `/usr/bin/uname -p` in sparc) echo sparc-icl-nx7; exit ;; esac ;; s390x:SunOS:*:*) echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4H:SunOS:5.*:*) echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*) echo i386-pc-auroraux${UNAME_RELEASE} exit ;; i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) eval $set_cc_for_build SUN_ARCH="i386" # If there is a compiler, see if it is configured for 64-bit objects. # Note that the Sun cc does not turn __LP64__ into 1 like gcc does. # This test works for both compilers. if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \ (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_64BIT_ARCH >/dev/null then SUN_ARCH="x86_64" fi fi echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:6*:*) # According to config.sub, this is the proper way to canonicalize # SunOS6. Hard to guess exactly what SunOS6 will be like, but # it's likely to be more like Solaris than SunOS4. echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:*:*) case "`/usr/bin/arch -k`" in Series*|S4*) UNAME_RELEASE=`uname -v` ;; esac # Japanese Language versions have a version number like `4.1.3-JL'. echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` exit ;; sun3*:SunOS:*:*) echo m68k-sun-sunos${UNAME_RELEASE} exit ;; sun*:*:4.2BSD:*) UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 case "`/bin/arch`" in sun3) echo m68k-sun-sunos${UNAME_RELEASE} ;; sun4) echo sparc-sun-sunos${UNAME_RELEASE} ;; esac exit ;; aushp:SunOS:*:*) echo sparc-auspex-sunos${UNAME_RELEASE} exit ;; # The situation for MiNT is a little confusing. The machine name # can be virtually everything (everything which is not # "atarist" or "atariste" at least should have a processor # > m68000). The system name ranges from "MiNT" over "FreeMiNT" # to the lowercase version "mint" (or "freemint"). Finally # the system name "TOS" denotes a system which is actually not # MiNT. But MiNT is downward compatible to TOS, so this should # be no problem. atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) echo m68k-milan-mint${UNAME_RELEASE} exit ;; hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) echo m68k-hades-mint${UNAME_RELEASE} exit ;; *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) echo m68k-unknown-mint${UNAME_RELEASE} exit ;; m68k:machten:*:*) echo m68k-apple-machten${UNAME_RELEASE} exit ;; powerpc:machten:*:*) echo powerpc-apple-machten${UNAME_RELEASE} exit ;; RISC*:Mach:*:*) echo mips-dec-mach_bsd4.3 exit ;; RISC*:ULTRIX:*:*) echo mips-dec-ultrix${UNAME_RELEASE} exit ;; VAX*:ULTRIX*:*:*) echo vax-dec-ultrix${UNAME_RELEASE} exit ;; 2020:CLIX:*:* | 2430:CLIX:*:*) echo clipper-intergraph-clix${UNAME_RELEASE} exit ;; mips:*:*:UMIPS | mips:*:*:RISCos) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #ifdef __cplusplus #include /* for printf() prototype */ int main (int argc, char *argv[]) { #else int main (argc, argv) int argc; char *argv[]; { #endif #if defined (host_mips) && defined (MIPSEB) #if defined (SYSTYPE_SYSV) printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_SVR4) printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); #endif #endif exit (-1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && SYSTEM_NAME=`$dummy $dummyarg` && { echo "$SYSTEM_NAME"; exit; } echo mips-mips-riscos${UNAME_RELEASE} exit ;; Motorola:PowerMAX_OS:*:*) echo powerpc-motorola-powermax exit ;; Motorola:*:4.3:PL8-*) echo powerpc-harris-powermax exit ;; Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) echo powerpc-harris-powermax exit ;; Night_Hawk:Power_UNIX:*:*) echo powerpc-harris-powerunix exit ;; m88k:CX/UX:7*:*) echo m88k-harris-cxux7 exit ;; m88k:*:4*:R4*) echo m88k-motorola-sysv4 exit ;; m88k:*:3*:R3*) echo m88k-motorola-sysv3 exit ;; AViiON:dgux:*:*) # DG/UX returns AViiON for all architectures UNAME_PROCESSOR=`/usr/bin/uname -p` if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] then if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ [ ${TARGET_BINARY_INTERFACE}x = x ] then echo m88k-dg-dgux${UNAME_RELEASE} else echo m88k-dg-dguxbcs${UNAME_RELEASE} fi else echo i586-dg-dgux${UNAME_RELEASE} fi exit ;; M88*:DolphinOS:*:*) # DolphinOS (SVR3) echo m88k-dolphin-sysv3 exit ;; M88*:*:R3*:*) # Delta 88k system running SVR3 echo m88k-motorola-sysv3 exit ;; XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) echo m88k-tektronix-sysv3 exit ;; Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) echo m68k-tektronix-bsd exit ;; *:IRIX*:*:*) echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` exit ;; ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' i*86:AIX:*:*) echo i386-ibm-aix exit ;; ia64:AIX:*:*) if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} exit ;; *:AIX:2:3) if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include main() { if (!__power_pc()) exit(1); puts("powerpc-ibm-aix3.2.5"); exit(0); } EOF if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` then echo "$SYSTEM_NAME" else echo rs6000-ibm-aix3.2.5 fi elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then echo rs6000-ibm-aix3.2.4 else echo rs6000-ibm-aix3.2 fi exit ;; *:AIX:*:[4567]) IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if [ -x /usr/bin/lslpp ] ; then IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${IBM_ARCH}-ibm-aix${IBM_REV} exit ;; *:AIX:*:*) echo rs6000-ibm-aix exit ;; ibmrt:4.4BSD:*|romp-ibm:BSD:*) echo romp-ibm-bsd4.4 exit ;; ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to exit ;; # report: romp-ibm BSD 4.3 *:BOSX:*:*) echo rs6000-bull-bosx exit ;; DPX/2?00:B.O.S.:*:*) echo m68k-bull-sysv3 exit ;; 9000/[34]??:4.3bsd:1.*:*) echo m68k-hp-bsd exit ;; hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) echo m68k-hp-bsd4.4 exit ;; 9000/[34678]??:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` case "${UNAME_MACHINE}" in 9000/31? ) HP_ARCH=m68000 ;; 9000/[34]?? ) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` case "${sc_cpu_version}" in 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 532) # CPU_PA_RISC2_0 case "${sc_kernel_bits}" in 32) HP_ARCH="hppa2.0n" ;; 64) HP_ARCH="hppa2.0w" ;; '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 esac ;; esac fi if [ "${HP_ARCH}" = "" ]; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #define _HPUX_SOURCE #include #include int main () { #if defined(_SC_KERNEL_BITS) long bits = sysconf(_SC_KERNEL_BITS); #endif long cpu = sysconf (_SC_CPU_VERSION); switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0"); break; case CPU_PA_RISC1_1: puts ("hppa1.1"); break; case CPU_PA_RISC2_0: #if defined(_SC_KERNEL_BITS) switch (bits) { case 64: puts ("hppa2.0w"); break; case 32: puts ("hppa2.0n"); break; default: puts ("hppa2.0"); break; } break; #else /* !defined(_SC_KERNEL_BITS) */ puts ("hppa2.0"); break; #endif default: puts ("hppa1.0"); break; } exit (0); } EOF (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` test -z "$HP_ARCH" && HP_ARCH=hppa fi ;; esac if [ ${HP_ARCH} = "hppa2.0w" ] then eval $set_cc_for_build # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler # generating 64-bit code. GNU and HP use different nomenclature: # # $ CC_FOR_BUILD=cc ./config.guess # => hppa2.0w-hp-hpux11.23 # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess # => hppa64-hp-hpux11.23 if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | grep -q __LP64__ then HP_ARCH="hppa2.0w" else HP_ARCH="hppa64" fi fi echo ${HP_ARCH}-hp-hpux${HPUX_REV} exit ;; ia64:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` echo ia64-hp-hpux${HPUX_REV} exit ;; 3050*:HI-UX:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include int main () { long cpu = sysconf (_SC_CPU_VERSION); /* The order matters, because CPU_IS_HP_MC68K erroneously returns true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct results, however. */ if (CPU_IS_PA_RISC (cpu)) { switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; default: puts ("hppa-hitachi-hiuxwe2"); break; } } else if (CPU_IS_HP_MC68K (cpu)) puts ("m68k-hitachi-hiuxwe2"); else puts ("unknown-hitachi-hiuxwe2"); exit (0); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } echo unknown-hitachi-hiuxwe2 exit ;; 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) echo hppa1.1-hp-bsd exit ;; 9000/8??:4.3bsd:*:*) echo hppa1.0-hp-bsd exit ;; *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) echo hppa1.0-hp-mpeix exit ;; hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) echo hppa1.1-hp-osf exit ;; hp8??:OSF1:*:*) echo hppa1.0-hp-osf exit ;; i*86:OSF1:*:*) if [ -x /usr/sbin/sysversion ] ; then echo ${UNAME_MACHINE}-unknown-osf1mk else echo ${UNAME_MACHINE}-unknown-osf1 fi exit ;; parisc*:Lites*:*:*) echo hppa1.1-hp-lites exit ;; C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) echo c1-convex-bsd exit ;; C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) echo c34-convex-bsd exit ;; C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) echo c38-convex-bsd exit ;; C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) echo c4-convex-bsd exit ;; CRAY*Y-MP:*:*:*) echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*[A-Z]90:*:*:*) echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ -e 's/\.[^.]*$/.X/' exit ;; CRAY*TS:*:*:*) echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*T3E:*:*:*) echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*SV1:*:*:*) echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; *:UNICOS/mp:*:*) echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; 5000:UNIX_System_V:4.*:*) FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} exit ;; sparc*:BSD/OS:*:*) echo sparc-unknown-bsdi${UNAME_RELEASE} exit ;; *:BSD/OS:*:*) echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} exit ;; *:FreeBSD:*:*) UNAME_PROCESSOR=`/usr/bin/uname -p` case ${UNAME_PROCESSOR} in amd64) echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; *) echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; esac exit ;; i*:CYGWIN*:*) echo ${UNAME_MACHINE}-pc-cygwin exit ;; *:MINGW64*:*) echo ${UNAME_MACHINE}-pc-mingw64 exit ;; *:MINGW*:*) echo ${UNAME_MACHINE}-pc-mingw32 exit ;; *:MSYS*:*) echo ${UNAME_MACHINE}-pc-msys exit ;; i*:windows32*:*) # uname -m includes "-pc" on this system. echo ${UNAME_MACHINE}-mingw32 exit ;; i*:PW*:*) echo ${UNAME_MACHINE}-pc-pw32 exit ;; *:Interix*:*) case ${UNAME_MACHINE} in x86) echo i586-pc-interix${UNAME_RELEASE} exit ;; authenticamd | genuineintel | EM64T) echo x86_64-unknown-interix${UNAME_RELEASE} exit ;; IA64) echo ia64-unknown-interix${UNAME_RELEASE} exit ;; esac ;; [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) echo i${UNAME_MACHINE}-pc-mks exit ;; 8664:Windows_NT:*) echo x86_64-pc-mks exit ;; i*:Windows_NT*:* | Pentium*:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we # UNAME_MACHINE based on the output of uname instead of i386? echo i586-pc-interix exit ;; i*:UWIN*:*) echo ${UNAME_MACHINE}-pc-uwin exit ;; amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) echo x86_64-unknown-cygwin exit ;; p*:CYGWIN*:*) echo powerpcle-unknown-cygwin exit ;; prep*:SunOS:5.*:*) echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; *:GNU:*:*) # the GNU system echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` exit ;; *:GNU/*:*:*) # other systems with GNU libc and userland echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC} exit ;; i*86:Minix:*:*) echo ${UNAME_MACHINE}-pc-minix exit ;; aarch64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; aarch64_be:Linux:*:*) UNAME_MACHINE=aarch64_be echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; alpha:Linux:*:*) case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in EV5) UNAME_MACHINE=alphaev5 ;; EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; PCA57) UNAME_MACHINE=alphapca56 ;; EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 0 ; then LIBC="gnulibc1" ; fi echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; arc:Linux:*:* | arceb:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; arm*:Linux:*:*) eval $set_cc_for_build if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_EABI__ then echo ${UNAME_MACHINE}-unknown-linux-${LIBC} else if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_PCS_VFP then echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi else echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf fi fi exit ;; avr32*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; cris:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-${LIBC} exit ;; crisv32:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-${LIBC} exit ;; frv:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; hexagon:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; i*86:Linux:*:*) echo ${UNAME_MACHINE}-pc-linux-${LIBC} exit ;; ia64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; m32r*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; m68*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; mips:Linux:*:* | mips64:Linux:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #undef CPU #undef ${UNAME_MACHINE} #undef ${UNAME_MACHINE}el #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) CPU=${UNAME_MACHINE}el #else #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) CPU=${UNAME_MACHINE} #else CPU= #endif #endif EOF eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; } ;; openrisc*:Linux:*:*) echo or1k-unknown-linux-${LIBC} exit ;; or32:Linux:*:* | or1k*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; padre:Linux:*:*) echo sparc-unknown-linux-${LIBC} exit ;; parisc64:Linux:*:* | hppa64:Linux:*:*) echo hppa64-unknown-linux-${LIBC} exit ;; parisc:Linux:*:* | hppa:Linux:*:*) # Look for CPU level case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in PA7*) echo hppa1.1-unknown-linux-${LIBC} ;; PA8*) echo hppa2.0-unknown-linux-${LIBC} ;; *) echo hppa-unknown-linux-${LIBC} ;; esac exit ;; ppc64:Linux:*:*) echo powerpc64-unknown-linux-${LIBC} exit ;; ppc:Linux:*:*) echo powerpc-unknown-linux-${LIBC} exit ;; ppc64le:Linux:*:*) echo powerpc64le-unknown-linux-${LIBC} exit ;; ppcle:Linux:*:*) echo powerpcle-unknown-linux-${LIBC} exit ;; s390:Linux:*:* | s390x:Linux:*:*) echo ${UNAME_MACHINE}-ibm-linux-${LIBC} exit ;; sh64*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; sh*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; sparc:Linux:*:* | sparc64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; tile*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; vax:Linux:*:*) echo ${UNAME_MACHINE}-dec-linux-${LIBC} exit ;; x86_64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; xtensa*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; i*86:DYNIX/ptx:4*:*) # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. # earlier versions are messed up and put the nodename in both # sysname and nodename. echo i386-sequent-sysv4 exit ;; i*86:UNIX_SV:4.2MP:2.*) # Unixware is an offshoot of SVR4, but it has its own version # number series starting with 2... # I am not positive that other SVR4 systems won't match this, # I just have to hope. -- rms. # Use sysv4.2uw... so that sysv4* matches it. echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} exit ;; i*86:OS/2:*:*) # If we were able to find `uname', then EMX Unix compatibility # is probably installed. echo ${UNAME_MACHINE}-pc-os2-emx exit ;; i*86:XTS-300:*:STOP) echo ${UNAME_MACHINE}-unknown-stop exit ;; i*86:atheos:*:*) echo ${UNAME_MACHINE}-unknown-atheos exit ;; i*86:syllable:*:*) echo ${UNAME_MACHINE}-pc-syllable exit ;; i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) echo i386-unknown-lynxos${UNAME_RELEASE} exit ;; i*86:*DOS:*:*) echo ${UNAME_MACHINE}-pc-msdosdjgpp exit ;; i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} else echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} fi exit ;; i*86:*:5:[678]*) # UnixWare 7.x, OpenUNIX and OpenServer 6. case `/bin/uname -X | grep "^Machine"` in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; *Pent*|*Celeron) UNAME_MACHINE=i686 ;; esac echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} exit ;; i*86:*:3.2:*) if test -f /usr/options/cb.name; then UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ && UNAME_MACHINE=i586 (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ && UNAME_MACHINE=i686 (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ && UNAME_MACHINE=i686 echo ${UNAME_MACHINE}-pc-sco$UNAME_REL else echo ${UNAME_MACHINE}-pc-sysv32 fi exit ;; pc:*:*:*) # Left here for compatibility: # uname -m prints for DJGPP always 'pc', but it prints nothing about # the processor, so we play safe by assuming i586. # Note: whatever this is, it MUST be the same as what config.sub # prints for the "djgpp" host, or else GDB configury will decide that # this is a cross-build. echo i586-pc-msdosdjgpp exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; paragon:*:*:*) echo i860-intel-osf1 exit ;; i860:*:4.*:*) # i860-SVR4 if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 else # Add other i860-SVR4 vendors below as they are discovered. echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 fi exit ;; mini*:CTIX:SYS*5:*) # "miniframe" echo m68010-convergent-sysv exit ;; mc68k:UNIX:SYSTEM5:3.51m) echo m68k-convergent-sysv exit ;; M680?0:D-NIX:5.3:*) echo m68k-diab-dnix exit ;; M68*:*:R3V[5678]*:*) test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) OS_REL='' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4; exit; } ;; NCR*:*:4.2:* | MPRAS*:*:4.2:*) OS_REL='.3' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) echo m68k-unknown-lynxos${UNAME_RELEASE} exit ;; mc68030:UNIX_System_V:4.*:*) echo m68k-atari-sysv4 exit ;; TSUNAMI:LynxOS:2.*:*) echo sparc-unknown-lynxos${UNAME_RELEASE} exit ;; rs6000:LynxOS:2.*:*) echo rs6000-unknown-lynxos${UNAME_RELEASE} exit ;; PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) echo powerpc-unknown-lynxos${UNAME_RELEASE} exit ;; SM[BE]S:UNIX_SV:*:*) echo mips-dde-sysv${UNAME_RELEASE} exit ;; RM*:ReliantUNIX-*:*:*) echo mips-sni-sysv4 exit ;; RM*:SINIX-*:*:*) echo mips-sni-sysv4 exit ;; *:SINIX-*:*:*) if uname -p 2>/dev/null >/dev/null ; then UNAME_MACHINE=`(uname -p) 2>/dev/null` echo ${UNAME_MACHINE}-sni-sysv4 else echo ns32k-sni-sysv fi exit ;; PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort # says echo i586-unisys-sysv4 exit ;; *:UNIX_System_V:4*:FTX*) # From Gerald Hewes . # How about differentiating between stratus architectures? -djm echo hppa1.1-stratus-sysv4 exit ;; *:*:*:FTX*) # From seanf@swdc.stratus.com. echo i860-stratus-sysv4 exit ;; i*86:VOS:*:*) # From Paul.Green@stratus.com. echo ${UNAME_MACHINE}-stratus-vos exit ;; *:VOS:*:*) # From Paul.Green@stratus.com. echo hppa1.1-stratus-vos exit ;; mc68*:A/UX:*:*) echo m68k-apple-aux${UNAME_RELEASE} exit ;; news*:NEWS-OS:6*:*) echo mips-sony-newsos6 exit ;; R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) if [ -d /usr/nec ]; then echo mips-nec-sysv${UNAME_RELEASE} else echo mips-unknown-sysv${UNAME_RELEASE} fi exit ;; BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. echo powerpc-be-beos exit ;; BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. echo powerpc-apple-beos exit ;; BePC:BeOS:*:*) # BeOS running on Intel PC compatible. echo i586-pc-beos exit ;; BePC:Haiku:*:*) # Haiku running on Intel PC compatible. echo i586-pc-haiku exit ;; x86_64:Haiku:*:*) echo x86_64-unknown-haiku exit ;; SX-4:SUPER-UX:*:*) echo sx4-nec-superux${UNAME_RELEASE} exit ;; SX-5:SUPER-UX:*:*) echo sx5-nec-superux${UNAME_RELEASE} exit ;; SX-6:SUPER-UX:*:*) echo sx6-nec-superux${UNAME_RELEASE} exit ;; SX-7:SUPER-UX:*:*) echo sx7-nec-superux${UNAME_RELEASE} exit ;; SX-8:SUPER-UX:*:*) echo sx8-nec-superux${UNAME_RELEASE} exit ;; SX-8R:SUPER-UX:*:*) echo sx8r-nec-superux${UNAME_RELEASE} exit ;; Power*:Rhapsody:*:*) echo powerpc-apple-rhapsody${UNAME_RELEASE} exit ;; *:Rhapsody:*:*) echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} exit ;; *:Darwin:*:*) UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown eval $set_cc_for_build if test "$UNAME_PROCESSOR" = unknown ; then UNAME_PROCESSOR=powerpc fi if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_64BIT_ARCH >/dev/null then case $UNAME_PROCESSOR in i386) UNAME_PROCESSOR=x86_64 ;; powerpc) UNAME_PROCESSOR=powerpc64 ;; esac fi fi elif test "$UNAME_PROCESSOR" = i386 ; then # Avoid executing cc on OS X 10.9, as it ships with a stub # that puts up a graphical alert prompting to install # developer tools. Any system running Mac OS X 10.7 or # later (Darwin 11 and later) is required to have a 64-bit # processor. This is not true of the ARM version of Darwin # that Apple uses in portable devices. UNAME_PROCESSOR=x86_64 fi echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} exit ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) UNAME_PROCESSOR=`uname -p` if test "$UNAME_PROCESSOR" = "x86"; then UNAME_PROCESSOR=i386 UNAME_MACHINE=pc fi echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} exit ;; *:QNX:*:4*) echo i386-pc-qnx exit ;; NEO-?:NONSTOP_KERNEL:*:*) echo neo-tandem-nsk${UNAME_RELEASE} exit ;; NSE-*:NONSTOP_KERNEL:*:*) echo nse-tandem-nsk${UNAME_RELEASE} exit ;; NSR-?:NONSTOP_KERNEL:*:*) echo nsr-tandem-nsk${UNAME_RELEASE} exit ;; *:NonStop-UX:*:*) echo mips-compaq-nonstopux exit ;; BS2000:POSIX*:*:*) echo bs2000-siemens-sysv exit ;; DS/*:UNIX_System_V:*:*) echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} exit ;; *:Plan9:*:*) # "uname -m" is not consistent, so use $cputype instead. 386 # is converted to i386 for consistency with other x86 # operating systems. if test "$cputype" = "386"; then UNAME_MACHINE=i386 else UNAME_MACHINE="$cputype" fi echo ${UNAME_MACHINE}-unknown-plan9 exit ;; *:TOPS-10:*:*) echo pdp10-unknown-tops10 exit ;; *:TENEX:*:*) echo pdp10-unknown-tenex exit ;; KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) echo pdp10-dec-tops20 exit ;; XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) echo pdp10-xkl-tops20 exit ;; *:TOPS-20:*:*) echo pdp10-unknown-tops20 exit ;; *:ITS:*:*) echo pdp10-unknown-its exit ;; SEI:*:*:SEIUX) echo mips-sei-seiux${UNAME_RELEASE} exit ;; *:DragonFly:*:*) echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` exit ;; *:*VMS:*:*) UNAME_MACHINE=`(uname -p) 2>/dev/null` case "${UNAME_MACHINE}" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; V*) echo vax-dec-vms ; exit ;; esac ;; *:XENIX:*:SysV) echo i386-pc-xenix exit ;; i*86:skyos:*:*) echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//' exit ;; i*86:rdos:*:*) echo ${UNAME_MACHINE}-pc-rdos exit ;; i*86:AROS:*:*) echo ${UNAME_MACHINE}-pc-aros exit ;; x86_64:VMkernel:*:*) echo ${UNAME_MACHINE}-unknown-esx exit ;; esac cat >&2 < in order to provide the needed information to handle your system. config.guess timestamp = $timestamp uname -m = `(uname -m) 2>/dev/null || echo unknown` uname -r = `(uname -r) 2>/dev/null || echo unknown` uname -s = `(uname -s) 2>/dev/null || echo unknown` uname -v = `(uname -v) 2>/dev/null || echo unknown` /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` /bin/uname -X = `(/bin/uname -X) 2>/dev/null` hostinfo = `(hostinfo) 2>/dev/null` /bin/universe = `(/bin/universe) 2>/dev/null` /usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` /bin/arch = `(/bin/arch) 2>/dev/null` /usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` UNAME_MACHINE = ${UNAME_MACHINE} UNAME_RELEASE = ${UNAME_RELEASE} UNAME_SYSTEM = ${UNAME_SYSTEM} UNAME_VERSION = ${UNAME_VERSION} EOF exit 1 # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: dnscrypt-proxy-1.9.4/src/libevent-modified/config.h.in000644 000765 000024 00000027403 13040635261 022354 0ustar00jstaff000000 000000 /* config.h.in. Generated from configure.ac by autoheader. */ /* Define if libevent should build without support for a debug mode */ #undef DISABLE_DEBUG_MODE /* Define if libevent should not allow replacing the mm functions */ #undef DISABLE_MM_REPLACEMENT /* Define if libevent should not be compiled with thread support */ #undef DISABLE_THREAD_SUPPORT /* Define to 1 if you have the `arc4random' function. */ #undef HAVE_ARC4RANDOM /* Define to 1 if you have the `arc4random_addrandom' function. */ #undef HAVE_ARC4RANDOM_ADDRANDOM /* Define to 1 if you have the `arc4random_buf' function. */ #undef HAVE_ARC4RANDOM_BUF /* Define to 1 if you have the header file. */ #undef HAVE_ARPA_INET_H /* Define to 1 if you have the `clock_gettime' function. */ #undef HAVE_CLOCK_GETTIME /* Define to 1 if you have the declaration of `CTL_KERN', and to 0 if you don't. */ #undef HAVE_DECL_CTL_KERN /* Define to 1 if you have the declaration of `KERN_ARND', and to 0 if you don't. */ #undef HAVE_DECL_KERN_ARND /* Define to 1 if you have the declaration of `KERN_RANDOM', and to 0 if you don't. */ #undef HAVE_DECL_KERN_RANDOM /* Define to 1 if you have the declaration of `RANDOM_UUID', and to 0 if you don't. */ #undef HAVE_DECL_RANDOM_UUID /* Define if /dev/poll is available */ #undef HAVE_DEVPOLL /* Define to 1 if you have the header file. */ #undef HAVE_DLFCN_H /* Define if your system supports the epoll system calls */ #undef HAVE_EPOLL /* Define to 1 if you have the `epoll_ctl' function. */ #undef HAVE_EPOLL_CTL /* Define to 1 if you have the `eventfd' function. */ #undef HAVE_EVENTFD /* Define if your system supports event ports */ #undef HAVE_EVENT_PORTS /* Define to 1 if you have the `fcntl' function. */ #undef HAVE_FCNTL /* Define to 1 if you have the header file. */ #undef HAVE_FCNTL_H /* Define to 1 if the system has the type `fd_mask'. */ #undef HAVE_FD_MASK /* Do we have getaddrinfo()? */ #undef HAVE_GETADDRINFO /* Define to 1 if you have the `getegid' function. */ #undef HAVE_GETEGID /* Define to 1 if you have the `geteuid' function. */ #undef HAVE_GETEUID /* Define this if you have any gethostbyname_r() */ #undef HAVE_GETHOSTBYNAME_R /* Define this if gethostbyname_r takes 3 arguments */ #undef HAVE_GETHOSTBYNAME_R_3_ARG /* Define this if gethostbyname_r takes 5 arguments */ #undef HAVE_GETHOSTBYNAME_R_5_ARG /* Define this if gethostbyname_r takes 6 arguments */ #undef HAVE_GETHOSTBYNAME_R_6_ARG /* Define to 1 if you have the `getnameinfo' function. */ #undef HAVE_GETNAMEINFO /* Define to 1 if you have the `getprotobynumber' function. */ #undef HAVE_GETPROTOBYNUMBER /* Define to 1 if you have the `getservbyname' function. */ #undef HAVE_GETSERVBYNAME /* Define to 1 if you have the `gettimeofday' function. */ #undef HAVE_GETTIMEOFDAY /* Define to 1 if you have the `inet_aton' function. */ #undef HAVE_INET_ATON /* Define to 1 if you have the `inet_ntop' function. */ #undef HAVE_INET_NTOP /* Define to 1 if you have the `inet_pton' function. */ #undef HAVE_INET_PTON /* Define to 1 if you have the header file. */ #undef HAVE_INTTYPES_H /* Define to 1 if you have the `issetugid' function. */ #undef HAVE_ISSETUGID /* Define to 1 if you have the `kqueue' function. */ #undef HAVE_KQUEUE /* Define if the system has zlib */ #undef HAVE_LIBZ /* Define to 1 if you have the header file. */ #undef HAVE_MEMORY_H /* Define to 1 if you have the `mmap' function. */ #undef HAVE_MMAP /* Define to 1 if you have the header file. */ #undef HAVE_NETDB_H /* Define to 1 if you have the header file. */ #undef HAVE_NETINET_IN6_H /* Define to 1 if you have the header file. */ #undef HAVE_NETINET_IN_H /* Define if the system has openssl */ #undef HAVE_OPENSSL /* Define to 1 if you have the header file. */ #undef HAVE_OPENSSL_BIO_H /* Define to 1 if you have the `pipe' function. */ #undef HAVE_PIPE /* Define to 1 if you have the `poll' function. */ #undef HAVE_POLL /* Define to 1 if you have the header file. */ #undef HAVE_POLL_H /* Define to 1 if you have the `port_create' function. */ #undef HAVE_PORT_CREATE /* Define to 1 if you have the header file. */ #undef HAVE_PORT_H /* Define if you have POSIX threads libraries and header files. */ #undef HAVE_PTHREAD /* Define if we have pthreads on this system */ #undef HAVE_PTHREADS /* Define to 1 if you have the `putenv' function. */ #undef HAVE_PUTENV /* Define to 1 if the system has the type `sa_family_t'. */ #undef HAVE_SA_FAMILY_T /* Define to 1 if you have the `select' function. */ #undef HAVE_SELECT /* Define to 1 if you have the `sendfile' function. */ #undef HAVE_SENDFILE /* Define to 1 if you have the `setenv' function. */ #undef HAVE_SETENV /* Define if F_SETFD is defined in */ #undef HAVE_SETFD /* Define to 1 if you have the `sigaction' function. */ #undef HAVE_SIGACTION /* Define to 1 if you have the `signal' function. */ #undef HAVE_SIGNAL /* Define to 1 if you have the `splice' function. */ #undef HAVE_SPLICE /* Define to 1 if you have the header file. */ #undef HAVE_STDARG_H /* Define to 1 if you have the header file. */ #undef HAVE_STDDEF_H /* Define to 1 if you have the header file. */ #undef HAVE_STDINT_H /* Define to 1 if you have the header file. */ #undef HAVE_STDLIB_H /* Define to 1 if you have the header file. */ #undef HAVE_STRINGS_H /* Define to 1 if you have the header file. */ #undef HAVE_STRING_H /* Define to 1 if you have the `strlcpy' function. */ #undef HAVE_STRLCPY /* Define to 1 if you have the `strsep' function. */ #undef HAVE_STRSEP /* Define to 1 if you have the `strtok_r' function. */ #undef HAVE_STRTOK_R /* Define to 1 if you have the `strtoll' function. */ #undef HAVE_STRTOLL /* Define to 1 if the system has the type `struct addrinfo'. */ #undef HAVE_STRUCT_ADDRINFO /* Define to 1 if the system has the type `struct in6_addr'. */ #undef HAVE_STRUCT_IN6_ADDR /* Define to 1 if `s6_addr16' is a member of `struct in6_addr'. */ #undef HAVE_STRUCT_IN6_ADDR_S6_ADDR16 /* Define to 1 if `s6_addr32' is a member of `struct in6_addr'. */ #undef HAVE_STRUCT_IN6_ADDR_S6_ADDR32 /* Define to 1 if the system has the type `struct sockaddr_in6'. */ #undef HAVE_STRUCT_SOCKADDR_IN6 /* Define to 1 if `sin6_len' is a member of `struct sockaddr_in6'. */ #undef HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN /* Define to 1 if `sin_len' is a member of `struct sockaddr_in'. */ #undef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN /* Define to 1 if the system has the type `struct sockaddr_storage'. */ #undef HAVE_STRUCT_SOCKADDR_STORAGE /* Define to 1 if `ss_family' is a member of `struct sockaddr_storage'. */ #undef HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY /* Define to 1 if `__ss_family' is a member of `struct sockaddr_storage'. */ #undef HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY /* Define to 1 if you have the `sysctl' function. */ #undef HAVE_SYSCTL /* Define to 1 if you have the header file. */ #undef HAVE_SYS_DEVPOLL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_EPOLL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_EVENTFD_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_EVENT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_IOCTL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_MMAN_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_PARAM_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_QUEUE_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SELECT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SENDFILE_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SOCKET_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_STAT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SYSCTL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_TIME_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_TYPES_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_UIO_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_WAIT_H /* Define if TAILQ_FOREACH is defined in */ #undef HAVE_TAILQFOREACH /* Define if timeradd is defined in */ #undef HAVE_TIMERADD /* Define if timerclear is defined in */ #undef HAVE_TIMERCLEAR /* Define if timercmp is defined in */ #undef HAVE_TIMERCMP /* Define if timerisset is defined in */ #undef HAVE_TIMERISSET /* Define to 1 if the system has the type `uint16_t'. */ #undef HAVE_UINT16_T /* Define to 1 if the system has the type `uint32_t'. */ #undef HAVE_UINT32_T /* Define to 1 if the system has the type `uint64_t'. */ #undef HAVE_UINT64_T /* Define to 1 if the system has the type `uint8_t'. */ #undef HAVE_UINT8_T /* Define to 1 if the system has the type `uintptr_t'. */ #undef HAVE_UINTPTR_T /* Define to 1 if you have the `umask' function. */ #undef HAVE_UMASK /* Define to 1 if you have the header file. */ #undef HAVE_UNISTD_H /* Define to 1 if you have the `unsetenv' function. */ #undef HAVE_UNSETENV /* Define to 1 if you have the `vasprintf' function. */ #undef HAVE_VASPRINTF /* Define if kqueue works correctly with pipes */ #undef HAVE_WORKING_KQUEUE /* Define to 1 if you have the header file. */ #undef HAVE_ZLIB_H /* Define to the sub-directory where libtool stores uninstalled libraries. */ #undef LT_OBJDIR /* Numeric representation of the version */ #undef NUMERIC_VERSION /* Name of package */ #undef PACKAGE /* Define to the address where bug reports for this package should be sent. */ #undef PACKAGE_BUGREPORT /* Define to the full name of this package. */ #undef PACKAGE_NAME /* Define to the full name and version of this package. */ #undef PACKAGE_STRING /* Define to the one symbol short name of this package. */ #undef PACKAGE_TARNAME /* Define to the home page for this package. */ #undef PACKAGE_URL /* Define to the version of this package. */ #undef PACKAGE_VERSION /* Define to necessary symbol if this constant uses a non-standard name on your system. */ #undef PTHREAD_CREATE_JOINABLE /* The size of `int', as computed by sizeof. */ #undef SIZEOF_INT /* The size of `long', as computed by sizeof. */ #undef SIZEOF_LONG /* The size of `long long', as computed by sizeof. */ #undef SIZEOF_LONG_LONG /* The size of `off_t', as computed by sizeof. */ #undef SIZEOF_OFF_T /* The size of `pthread_t', as computed by sizeof. */ #undef SIZEOF_PTHREAD_T /* The size of `short', as computed by sizeof. */ #undef SIZEOF_SHORT /* The size of `size_t', as computed by sizeof. */ #undef SIZEOF_SIZE_T /* The size of `void *', as computed by sizeof. */ #undef SIZEOF_VOID_P /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS /* Define to 1 if you can safely include both and . */ #undef TIME_WITH_SYS_TIME /* Version number of package */ #undef VERSION /* Define to appropriate substitue if compiler doesnt have __func__ */ #undef __func__ /* Define to empty if `const' does not conform to ANSI C. */ #undef const /* Define to `__inline__' or `__inline' if that's what the C compiler calls it, or to nothing if 'inline' is not supported under any name. */ #ifndef __cplusplus #undef inline #endif /* Define to `int' if does not define. */ #undef pid_t /* Define to `unsigned int' if does not define. */ #undef size_t /* Define to unsigned int if you dont have it */ #undef socklen_t /* Define to `int' if does not define. */ #undef ssize_t dnscrypt-proxy-1.9.4/src/libevent-modified/config.sub000755 000765 000024 00000106223 13040635261 022312 0ustar00jstaff000000 000000 #! /bin/sh # Configuration validation subroutine script. # Copyright 1992-2014 Free Software Foundation, Inc. timestamp='2014-12-03' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see . # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that # program. This Exception is an additional permission under section 7 # of the GNU General Public License, version 3 ("GPLv3"). # Please send patches to . # # Configuration subroutine to validate and canonicalize a configuration type. # Supply the specified configuration type as an argument. # If it is invalid, we print an error message on stderr and exit with code 1. # Otherwise, we print the canonical config type on stdout and succeed. # You can get the latest version of this script from: # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD # This file is supposed to be the same for all GNU packages # and recognize all the CPU types, system types and aliases # that are meaningful with *any* GNU software. # Each package is responsible for reporting which valid configurations # it does not support. The user should be able to distinguish # a failure to support a valid configuration from a meaningless # configuration. # The goal of this file is to map all the various variations of a given # machine specification into a single specification in the form: # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM # or in some cases, the newer four-part form: # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # It is wrong to echo any other type of specification. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] CPU-MFR-OPSYS $0 [OPTION] ALIAS Canonicalize a configuration name. Operation modes: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to ." version="\ GNU config.sub ($timestamp) Copyright 1992-2014 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$me --help' for more information." # Parse command line while test $# -gt 0 ; do case $1 in --time-stamp | --time* | -t ) echo "$timestamp" ; exit ;; --version | -v ) echo "$version" ; exit ;; --help | --h* | -h ) echo "$usage"; exit ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) echo "$me: invalid option $1$help" exit 1 ;; *local*) # First pass through any local machine types. echo $1 exit ;; * ) break ;; esac done case $# in 0) echo "$me: missing argument$help" >&2 exit 1;; 1) ;; *) echo "$me: too many arguments$help" >&2 exit 1;; esac # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). # Here we must recognize all the valid KERNEL-OS combinations. maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` case $maybe_os in nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ knetbsd*-gnu* | netbsd*-gnu* | \ kopensolaris*-gnu* | \ storm-chaos* | os2-emx* | rtmk-nova*) os=-$maybe_os basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` ;; android-linux) os=-linux-android basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown ;; *) basic_machine=`echo $1 | sed 's/-[^-]*$//'` if [ $basic_machine != $1 ] then os=`echo $1 | sed 's/.*-/-/'` else os=; fi ;; esac ### Let's recognize common machines as not being operating systems so ### that things like config.sub decstation-3100 work. We also ### recognize some manufacturers as not being operating systems, so we ### can provide default operating systems below. case $os in -sun*os*) # Prevent following clause from handling this invalid input. ;; -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ -apple | -axis | -knuth | -cray | -microblaze*) os= basic_machine=$1 ;; -bluegene*) os=-cnk ;; -sim | -cisco | -oki | -wec | -winbond) os= basic_machine=$1 ;; -scout) ;; -wrs) os=-vxworks basic_machine=$1 ;; -chorusos*) os=-chorusos basic_machine=$1 ;; -chorusrdb) os=-chorusrdb basic_machine=$1 ;; -hiux*) os=-hiuxwe2 ;; -sco6) os=-sco5v6 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5) os=-sco3.2v5 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco4) os=-sco3.2v4 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2.[4-9]*) os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2v[4-9]*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5v6*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco*) os=-sco3.2v2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -udk*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -isc) os=-isc2.2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -clix*) basic_machine=clipper-intergraph ;; -isc*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -lynx*178) os=-lynxos178 ;; -lynx*5) os=-lynxos5 ;; -lynx*) os=-lynxos ;; -ptx*) basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` ;; -windowsnt*) os=`echo $os | sed -e 's/windowsnt/winnt/'` ;; -psos*) os=-psos ;; -mint | -mint[0-9]*) basic_machine=m68k-atari os=-mint ;; esac # Decode aliases for certain CPU-COMPANY combinations. case $basic_machine in # Recognize the basic CPU types without company name. # Some are omitted here because they have special meanings below. 1750a | 580 \ | a29k \ | aarch64 | aarch64_be \ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ | am33_2.0 \ | arc | arceb \ | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \ | avr | avr32 \ | be32 | be64 \ | bfin \ | c4x | c8051 | clipper \ | d10v | d30v | dlx | dsp16xx \ | epiphany \ | fido | fr30 | frv \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | hexagon \ | i370 | i860 | i960 | ia64 \ | ip2k | iq2000 \ | k1om \ | le32 | le64 \ | lm32 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ | mips | mipsbe | mipseb | mipsel | mipsle \ | mips16 \ | mips64 | mips64el \ | mips64octeon | mips64octeonel \ | mips64orion | mips64orionel \ | mips64r5900 | mips64r5900el \ | mips64vr | mips64vrel \ | mips64vr4100 | mips64vr4100el \ | mips64vr4300 | mips64vr4300el \ | mips64vr5000 | mips64vr5000el \ | mips64vr5900 | mips64vr5900el \ | mipsisa32 | mipsisa32el \ | mipsisa32r2 | mipsisa32r2el \ | mipsisa32r6 | mipsisa32r6el \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64r6 | mipsisa64r6el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipsr5900 | mipsr5900el \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | moxie \ | mt \ | msp430 \ | nds32 | nds32le | nds32be \ | nios | nios2 | nios2eb | nios2el \ | ns16k | ns32k \ | open8 | or1k | or1knd | or32 \ | pdp10 | pdp11 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle \ | pyramid \ | riscv32 | riscv64 \ | rl78 | rx \ | score \ | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ | sh64 | sh64le \ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ | spu \ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ | ubicom32 \ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ | visium \ | we32k \ | x86 | xc16x | xstormy16 | xtensa \ | z8k | z80) basic_machine=$basic_machine-unknown ;; c54x) basic_machine=tic54x-unknown ;; c55x) basic_machine=tic55x-unknown ;; c6x) basic_machine=tic6x-unknown ;; leon|leon[3-9]) basic_machine=sparc-$basic_machine ;; m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip) basic_machine=$basic_machine-unknown os=-none ;; m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) ;; ms1) basic_machine=mt-unknown ;; strongarm | thumb | xscale) basic_machine=arm-unknown ;; xgate) basic_machine=$basic_machine-unknown os=-none ;; xscaleeb) basic_machine=armeb-unknown ;; xscaleel) basic_machine=armel-unknown ;; # We use `pc' rather than `unknown' # because (1) that's what they normally are, and # (2) the word "unknown" tends to confuse beginning users. i*86 | x86_64) basic_machine=$basic_machine-pc ;; # Object if more than one company name word. *-*-*) echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 exit 1 ;; # Recognize the basic CPU types with company name. 580-* \ | a29k-* \ | aarch64-* | aarch64_be-* \ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | c8051-* | clipper-* | craynv-* | cydra-* \ | d10v-* | d30v-* | dlx-* \ | elxsi-* \ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | hexagon-* \ | i*86-* | i860-* | i960-* | ia64-* \ | ip2k-* | iq2000-* \ | k1om-* \ | le32-* | le64-* \ | lm32-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ | microblaze-* | microblazeel-* \ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ | mips16-* \ | mips64-* | mips64el-* \ | mips64octeon-* | mips64octeonel-* \ | mips64orion-* | mips64orionel-* \ | mips64r5900-* | mips64r5900el-* \ | mips64vr-* | mips64vrel-* \ | mips64vr4100-* | mips64vr4100el-* \ | mips64vr4300-* | mips64vr4300el-* \ | mips64vr5000-* | mips64vr5000el-* \ | mips64vr5900-* | mips64vr5900el-* \ | mipsisa32-* | mipsisa32el-* \ | mipsisa32r2-* | mipsisa32r2el-* \ | mipsisa32r6-* | mipsisa32r6el-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64r6-* | mipsisa64r6el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipsr5900-* | mipsr5900el-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nds32-* | nds32le-* | nds32be-* \ | nios-* | nios2-* | nios2eb-* | nios2el-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | open8-* \ | or1k*-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ | pyramid-* \ | rl78-* | romp-* | rs6000-* | rx-* \ | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ | sparclite-* \ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ | tahoe-* \ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ | tile*-* \ | tron-* \ | ubicom32-* \ | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ | vax-* \ | visium-* \ | we32k-* \ | x86-* | x86_64-* | xc16x-* | xps100-* \ | xstormy16-* | xtensa*-* \ | ymp-* \ | z8k-* | z80-*) ;; # Recognize the basic CPU types without company name, with glob match. xtensa*) basic_machine=$basic_machine-unknown ;; # Recognize the various machine names and aliases which stand # for a CPU type and a company and sometimes even an OS. 386bsd) basic_machine=i386-unknown os=-bsd ;; 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) basic_machine=m68000-att ;; 3b*) basic_machine=we32k-att ;; a29khif) basic_machine=a29k-amd os=-udi ;; abacus) basic_machine=abacus-unknown ;; adobe68k) basic_machine=m68010-adobe os=-scout ;; alliant | fx80) basic_machine=fx80-alliant ;; altos | altos3068) basic_machine=m68k-altos ;; am29k) basic_machine=a29k-none os=-bsd ;; amd64) basic_machine=x86_64-pc ;; amd64-*) basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` ;; amdahl) basic_machine=580-amdahl os=-sysv ;; amiga | amiga-*) basic_machine=m68k-unknown ;; amigaos | amigados) basic_machine=m68k-unknown os=-amigaos ;; amigaunix | amix) basic_machine=m68k-unknown os=-sysv4 ;; apollo68) basic_machine=m68k-apollo os=-sysv ;; apollo68bsd) basic_machine=m68k-apollo os=-bsd ;; aros) basic_machine=i386-pc os=-aros ;; aux) basic_machine=m68k-apple os=-aux ;; balance) basic_machine=ns32k-sequent os=-dynix ;; blackfin) basic_machine=bfin-unknown os=-linux ;; blackfin-*) basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` os=-linux ;; bluegene*) basic_machine=powerpc-ibm os=-cnk ;; c54x-*) basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c55x-*) basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c6x-*) basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c90) basic_machine=c90-cray os=-unicos ;; cegcc) basic_machine=arm-unknown os=-cegcc ;; convex-c1) basic_machine=c1-convex os=-bsd ;; convex-c2) basic_machine=c2-convex os=-bsd ;; convex-c32) basic_machine=c32-convex os=-bsd ;; convex-c34) basic_machine=c34-convex os=-bsd ;; convex-c38) basic_machine=c38-convex os=-bsd ;; cray | j90) basic_machine=j90-cray os=-unicos ;; craynv) basic_machine=craynv-cray os=-unicosmp ;; 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Even if it were fixed, the result of this # check would be larger than it should be. lt_cv_sys_max_cmd_len=12288; # 12K is about right ;; gnu*) # Under GNU Hurd, this test is not required because there is # no limit to the length of command line arguments. # Libtool will interpret -1 as no limit whatsoever lt_cv_sys_max_cmd_len=-1; ;; cygwin* | mingw* | cegcc*) # On Win9x/ME, this test blows up -- it succeeds, but takes # about 5 minutes as the teststring grows exponentially. # Worse, since 9x/ME are not pre-emptively multitasking, # you end up with a "frozen" computer, even though with patience # the test eventually succeeds (with a max line length of 256k). # Instead, let's just punt: use the minimum linelength reported by # all of the supported platforms: 8192 (on NT/2K/XP). lt_cv_sys_max_cmd_len=8192; ;; mint*) # On MiNT this can take a long time and run out of memory. lt_cv_sys_max_cmd_len=8192; ;; amigaos*) # On AmigaOS with pdksh, this test takes hours, literally. # So we just punt and use a minimum line length of 8192. lt_cv_sys_max_cmd_len=8192; ;; bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*) # This has been around since 386BSD, at least. Likely further. if test -x /sbin/sysctl; then lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` elif test -x /usr/sbin/sysctl; then lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` else lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs fi # And add a safety zone lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` ;; interix*) # We know the value 262144 and hardcode it with a safety zone (like BSD) lt_cv_sys_max_cmd_len=196608 ;; os2*) # The test takes a long time on OS/2. lt_cv_sys_max_cmd_len=8192 ;; osf*) # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test X`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test 17 != "$i" # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. It appears as though 1/2 is a usable value. lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` fi ;; esac fi if test -n "$lt_cv_sys_max_cmd_len"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 $as_echo "$lt_cv_sys_max_cmd_len" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 $as_echo "none" >&6; } fi max_cmd_len=$lt_cv_sys_max_cmd_len : ${CP="cp -f"} : ${MV="mv -f"} : ${RM="rm -f"} if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then lt_unset=unset else lt_unset=false fi # test EBCDIC or ASCII case `echo X|tr X '\101'` in A) # ASCII based system # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr lt_SP2NL='tr \040 \012' lt_NL2SP='tr \015\012 \040\040' ;; *) # EBCDIC based system lt_SP2NL='tr \100 \n' lt_NL2SP='tr \r\n \100\100' ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 $as_echo_n "checking how to convert $build file names to $host format... " >&6; } if ${lt_cv_to_host_file_cmd+:} false; then : $as_echo_n "(cached) " >&6 else case $host in *-*-mingw* ) case $build in *-*-mingw* ) # actually msys lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 ;; *-*-cygwin* ) lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 ;; * ) # otherwise, assume *nix lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 ;; esac ;; *-*-cygwin* ) case $build in *-*-mingw* ) # actually msys lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin ;; *-*-cygwin* ) lt_cv_to_host_file_cmd=func_convert_file_noop ;; * ) # otherwise, assume *nix lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin ;; esac ;; * ) # unhandled hosts (and "normal" native builds) lt_cv_to_host_file_cmd=func_convert_file_noop ;; esac fi to_host_file_cmd=$lt_cv_to_host_file_cmd { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5 $as_echo "$lt_cv_to_host_file_cmd" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5 $as_echo_n "checking how to convert $build file names to toolchain format... " >&6; } if ${lt_cv_to_tool_file_cmd+:} false; then : $as_echo_n "(cached) " >&6 else #assume ordinary cross tools, or native build. lt_cv_to_tool_file_cmd=func_convert_file_noop case $host in *-*-mingw* ) case $build in *-*-mingw* ) # actually msys lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 ;; esac ;; esac fi to_tool_file_cmd=$lt_cv_to_tool_file_cmd { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5 $as_echo "$lt_cv_to_tool_file_cmd" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5 $as_echo_n "checking for $LD option to reload object files... " >&6; } if ${lt_cv_ld_reload_flag+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_reload_flag='-r' fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 $as_echo "$lt_cv_ld_reload_flag" >&6; } reload_flag=$lt_cv_ld_reload_flag case $reload_flag in "" | " "*) ;; *) reload_flag=" $reload_flag" ;; esac reload_cmds='$LD$reload_flag -o $output$reload_objs' case $host_os in cygwin* | mingw* | pw32* | cegcc*) if test yes != "$GCC"; then reload_cmds=false fi ;; darwin*) if test yes = "$GCC"; then reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' else reload_cmds='$LD$reload_flag -o $output$reload_objs' fi ;; esac if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. set dummy ${ac_tool_prefix}objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OBJDUMP"; then ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OBJDUMP=$ac_cv_prog_OBJDUMP if test -n "$OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 $as_echo "$OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OBJDUMP"; then ac_ct_OBJDUMP=$OBJDUMP # Extract the first word of "objdump", so it can be a program name with args. set dummy objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OBJDUMP"; then ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OBJDUMP="objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP if test -n "$ac_ct_OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 $as_echo "$ac_ct_OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OBJDUMP" = x; then OBJDUMP="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OBJDUMP=$ac_ct_OBJDUMP fi else OBJDUMP="$ac_cv_prog_OBJDUMP" fi test -z "$OBJDUMP" && OBJDUMP=objdump { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 $as_echo_n "checking how to recognize dependent libraries... " >&6; } if ${lt_cv_deplibs_check_method+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_file_magic_cmd='$MAGIC_CMD' lt_cv_file_magic_test_file= lt_cv_deplibs_check_method='unknown' # Need to set the preceding variable on all platforms that support # interlibrary dependencies. # 'none' -- dependencies not supported. # 'unknown' -- same as none, but documents that we really don't know. # 'pass_all' -- all dependencies passed with no checks. # 'test_compile' -- check by making test program. # 'file_magic [[regex]]' -- check by looking for files in library path # that responds to the $file_magic_cmd with a given extended regex. # If you have 'file' or equivalent on your system and you're not sure # whether 'pass_all' will *always* work, you probably want this one. case $host_os in aix[4-9]*) lt_cv_deplibs_check_method=pass_all ;; beos*) lt_cv_deplibs_check_method=pass_all ;; bsdi[45]*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' lt_cv_file_magic_cmd='/usr/bin/file -L' lt_cv_file_magic_test_file=/shlib/libc.so ;; cygwin*) # func_win32_libid is a shell function defined in ltmain.sh lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' ;; mingw* | pw32*) # Base MSYS/MinGW do not provide the 'file' command needed by # func_win32_libid shell function, so use a weaker test based on 'objdump', # unless we find 'file', for example because we are cross-compiling. if ( file / ) >/dev/null 2>&1; then lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' else # Keep this pattern in sync with the one in func_win32_libid. lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' lt_cv_file_magic_cmd='$OBJDUMP -f' fi ;; cegcc*) # use the weaker test based on 'objdump'. See mingw*. lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' lt_cv_file_magic_cmd='$OBJDUMP -f' ;; darwin* | rhapsody*) lt_cv_deplibs_check_method=pass_all ;; freebsd* | dragonfly*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then case $host_cpu in i*86 ) # Not sure whether the presence of OpenBSD here was a mistake. # Let's accept both of them until this is cleared up. lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` ;; esac else lt_cv_deplibs_check_method=pass_all fi ;; haiku*) lt_cv_deplibs_check_method=pass_all ;; hpux10.20* | hpux11*) lt_cv_file_magic_cmd=/usr/bin/file case $host_cpu in ia64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so ;; hppa*64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl ;; *) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' lt_cv_file_magic_test_file=/usr/lib/libc.sl ;; esac ;; interix[3-9]*) # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' ;; irix5* | irix6* | nonstopux*) case $LD in *-32|*"-32 ") libmagic=32-bit;; *-n32|*"-n32 ") libmagic=N32;; *-64|*"-64 ") libmagic=64-bit;; *) libmagic=never-match;; esac lt_cv_deplibs_check_method=pass_all ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) lt_cv_deplibs_check_method=pass_all ;; netbsd*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' fi ;; newos6*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=/usr/lib/libnls.so ;; *nto* | *qnx*) lt_cv_deplibs_check_method=pass_all ;; openbsd* | bitrig*) if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' fi ;; osf3* | osf4* | osf5*) lt_cv_deplibs_check_method=pass_all ;; rdos*) lt_cv_deplibs_check_method=pass_all ;; solaris*) lt_cv_deplibs_check_method=pass_all ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) lt_cv_deplibs_check_method=pass_all ;; sysv4 | sysv4.3*) case $host_vendor in motorola) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` ;; ncr) lt_cv_deplibs_check_method=pass_all ;; sequent) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;; sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; os2*) lt_cv_deplibs_check_method=pass_all ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 $as_echo "$lt_cv_deplibs_check_method" >&6; } file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. set dummy ${ac_tool_prefix}dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DLLTOOL"; then ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DLLTOOL=$ac_cv_prog_DLLTOOL if test -n "$DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 $as_echo "$DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DLLTOOL"; then ac_ct_DLLTOOL=$DLLTOOL # Extract the first word of "dlltool", so it can be a program name with args. set dummy dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DLLTOOL"; then ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DLLTOOL="dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL if test -n "$ac_ct_DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 $as_echo "$ac_ct_DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DLLTOOL" = x; then DLLTOOL="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DLLTOOL=$ac_ct_DLLTOOL fi else DLLTOOL="$ac_cv_prog_DLLTOOL" fi test -z "$DLLTOOL" && DLLTOOL=dlltool { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 $as_echo_n "checking how to associate runtime and link libraries... " >&6; } if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh; # decide which one to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd=$ECHO ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 $as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO if test -n "$ac_tool_prefix"; then for ac_prog in ar do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$AR"; then ac_cv_prog_AR="$AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_AR="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi AR=$ac_cv_prog_AR if test -n "$AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 $as_echo "$AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$AR" && break done fi if test -z "$AR"; then ac_ct_AR=$AR for ac_prog in ar do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_AR"; then ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_AR="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_AR=$ac_cv_prog_ac_ct_AR if test -n "$ac_ct_AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 $as_echo "$ac_ct_AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_AR" && break done if test "x$ac_ct_AR" = x; then AR="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac AR=$ac_ct_AR fi fi : ${AR=ar} : ${AR_FLAGS=cru} { $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 $as_echo_n "checking for archiver @FILE support... " >&6; } if ${lt_cv_ar_at_file+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ar_at_file=no cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : echo conftest.$ac_objext > conftest.lst lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -eq "$ac_status"; then # Ensure the archiver fails upon bogus file names. rm -f conftest.$ac_objext libconftest.a { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -ne "$ac_status"; then lt_cv_ar_at_file=@ fi fi rm -f conftest.* libconftest.a fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 $as_echo "$lt_cv_ar_at_file" >&6; } if test no = "$lt_cv_ar_at_file"; then archiver_list_spec= else archiver_list_spec=$lt_cv_ar_at_file fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. set dummy ${ac_tool_prefix}strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$STRIP"; then ac_cv_prog_STRIP="$STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_STRIP="${ac_tool_prefix}strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi STRIP=$ac_cv_prog_STRIP if test -n "$STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 $as_echo "$STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_STRIP"; then ac_ct_STRIP=$STRIP # Extract the first word of "strip", so it can be a program name with args. set dummy strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_STRIP"; then ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_STRIP="strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP if test -n "$ac_ct_STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 $as_echo "$ac_ct_STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_STRIP" = x; then STRIP=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac STRIP=$ac_ct_STRIP fi else STRIP="$ac_cv_prog_STRIP" fi test -z "$STRIP" && STRIP=: if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. set dummy ${ac_tool_prefix}ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi RANLIB=$ac_cv_prog_RANLIB if test -n "$RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 $as_echo "$RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_RANLIB"; then ac_ct_RANLIB=$RANLIB # Extract the first word of "ranlib", so it can be a program name with args. set dummy ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_RANLIB"; then ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_RANLIB="ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB if test -n "$ac_ct_RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 $as_echo "$ac_ct_RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_RANLIB" = x; then RANLIB=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac RANLIB=$ac_ct_RANLIB fi else RANLIB="$ac_cv_prog_RANLIB" fi test -z "$RANLIB" && RANLIB=: # Determine commands to create old-style static archives. old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' old_postinstall_cmds='chmod 644 $oldlib' old_postuninstall_cmds= if test -n "$RANLIB"; then case $host_os in bitrig* | openbsd*) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" ;; *) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" ;; esac old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" fi case $host_os in darwin*) lock_old_archive_extraction=yes ;; *) lock_old_archive_extraction=no ;; esac # If no C compiler was specified, use CC. LTCC=${LTCC-"$CC"} # If no C compiler flags were specified, use CFLAGS. LTCFLAGS=${LTCFLAGS-"$CFLAGS"} # Allow CC to be a program name with arguments. compiler=$CC # Check for command to grab the raw symbol name followed by C symbol from nm. { $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 $as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } if ${lt_cv_sys_global_symbol_pipe+:} false; then : $as_echo_n "(cached) " >&6 else # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[BCDEGRST]' # Regexp to match symbols that can be accessed directly from C. sympat='\([_A-Za-z][_A-Za-z0-9]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[BCDT]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[ABCDGISTW]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[ABCDEGRST]' fi ;; irix* | nonstopux*) symcode='[BCDEGRST]' ;; osf*) symcode='[BCDEGQRST]' ;; solaris*) symcode='[BDRT]' ;; sco3.2v5*) symcode='[DT]' ;; sysv4.2uw2*) symcode='[DT]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[ABDT]' ;; sysv4) symcode='[DFNSTU]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[ABCDGIRSTW]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK '"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then # Now try to grab the symbols. nlist=conftest.nm if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 (eval $ac_link) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&5 fi else echo "cannot find nm_test_var in $nlist" >&5 fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 fi else echo "$progname: failed program was:" >&5 cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done fi if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 $as_echo "failed" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 $as_echo "ok" >&6; } fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then nm_file_list_spec='@' fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 $as_echo_n "checking for sysroot... " >&6; } # Check whether --with-sysroot was given. if test "${with_sysroot+set}" = set; then : withval=$with_sysroot; else with_sysroot=no fi lt_sysroot= case $with_sysroot in #( yes) if test yes = "$GCC"; then lt_sysroot=`$CC --print-sysroot 2>/dev/null` fi ;; #( /*) lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` ;; #( no|'') ;; #( *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5 $as_echo "$with_sysroot" >&6; } as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 $as_echo "${lt_sysroot:-no}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5 $as_echo_n "checking for a working dd... " >&6; } if ${ac_cv_path_lt_DD+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i : ${lt_DD:=$DD} if test -z "$lt_DD"; then ac_path_lt_DD_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in dd; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext" as_fn_executable_p "$ac_path_lt_DD" || continue if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: fi $ac_path_lt_DD_found && break 3 done done done IFS=$as_save_IFS if test -z "$ac_cv_path_lt_DD"; then : fi else ac_cv_path_lt_DD=$lt_DD fi rm -f conftest.i conftest2.i conftest.out fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5 $as_echo "$ac_cv_path_lt_DD" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5 $as_echo_n "checking how to truncate binary pipes... " >&6; } if ${lt_cv_truncate_bin+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i lt_cv_truncate_bin= if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" fi rm -f conftest.i conftest2.i conftest.out test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5 $as_echo "$lt_cv_truncate_bin" >&6; } # Calculate cc_basename. Skip known compiler wrappers and cross-prefix. func_cc_basename () { for cc_temp in $*""; do case $cc_temp in compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; \-*) ;; *) break;; esac done func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` } # Check whether --enable-libtool-lock was given. if test "${enable_libtool_lock+set}" = set; then : enableval=$enable_libtool_lock; fi test no = "$enable_libtool_lock" || enable_libtool_lock=yes # Some flags need to be propagated to the compiler or linker for good # libtool support. case $host in ia64-*-hpux*) # Find out what ABI is being produced by ac_compile, and set mode # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.$ac_objext` in *ELF-32*) HPUX_IA64_MODE=32 ;; *ELF-64*) HPUX_IA64_MODE=64 ;; esac fi rm -rf conftest* ;; *-*-irix6*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then if test yes = "$lt_cv_prog_gnu_ld"; then case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -melf32bsmip" ;; *N32*) LD="${LD-ld} -melf32bmipn32" ;; *64-bit*) LD="${LD-ld} -melf64bmip" ;; esac else case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -32" ;; *N32*) LD="${LD-ld} -n32" ;; *64-bit*) LD="${LD-ld} -64" ;; esac fi fi rm -rf conftest* ;; mips64*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then emul=elf case `/usr/bin/file conftest.$ac_objext` in *32-bit*) emul="${emul}32" ;; *64-bit*) emul="${emul}64" ;; esac case `/usr/bin/file conftest.$ac_objext` in *MSB*) emul="${emul}btsmip" ;; *LSB*) emul="${emul}ltsmip" ;; esac case `/usr/bin/file conftest.$ac_objext` in *N32*) emul="${emul}n32" ;; esac LD="${LD-ld} -m $emul" fi rm -rf conftest* ;; x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ s390*-*linux*|s390*-*tpf*|sparc*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. Note that the listed cases only cover the # situations where additional linker options are needed (such as when # doing 32-bit compilation for a host where ld defaults to 64-bit, or # vice versa); the common cases where no linker options are needed do # not appear in the list. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *32-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_i386_fbsd" ;; x86_64-*linux*) case `/usr/bin/file conftest.o` in *x86-64*) LD="${LD-ld} -m elf32_x86_64" ;; *) LD="${LD-ld} -m elf_i386" ;; esac ;; powerpc64le-*linux*) LD="${LD-ld} -m elf32lppclinux" ;; powerpc64-*linux*) LD="${LD-ld} -m elf32ppclinux" ;; s390x-*linux*) LD="${LD-ld} -m elf_s390" ;; sparc64-*linux*) LD="${LD-ld} -m elf32_sparc" ;; esac ;; *64-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_x86_64_fbsd" ;; x86_64-*linux*) LD="${LD-ld} -m elf_x86_64" ;; powerpcle-*linux*) LD="${LD-ld} -m elf64lppc" ;; powerpc-*linux*) LD="${LD-ld} -m elf64ppc" ;; s390*-*linux*|s390*-*tpf*) LD="${LD-ld} -m elf64_s390" ;; sparc*-*linux*) LD="${LD-ld} -m elf64_sparc" ;; esac ;; esac fi rm -rf conftest* ;; *-*-sco3.2v5*) # On SCO OpenServer 5, we need -belf to get full-featured binaries. SAVE_CFLAGS=$CFLAGS CFLAGS="$CFLAGS -belf" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 $as_echo_n "checking whether the C compiler needs -belf... " >&6; } if ${lt_cv_cc_needs_belf+:} false; then : $as_echo_n "(cached) " >&6 else ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_cc_needs_belf=yes else lt_cv_cc_needs_belf=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 $as_echo "$lt_cv_cc_needs_belf" >&6; } if test yes != "$lt_cv_cc_needs_belf"; then # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf CFLAGS=$SAVE_CFLAGS fi ;; *-*solaris*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *64-bit*) case $lt_cv_prog_gnu_ld in yes*) case $host in i?86-*-solaris*|x86_64-*-solaris*) LD="${LD-ld} -m elf_x86_64" ;; sparc*-*-solaris*) LD="${LD-ld} -m elf64_sparc" ;; esac # GNU ld 2.21 introduced _sol2 emulations. Use them if available. if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then LD=${LD-ld}_sol2 fi ;; *) if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then LD="${LD-ld} -64" fi ;; esac ;; esac fi rm -rf conftest* ;; esac need_locks=$enable_libtool_lock if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. set dummy ${ac_tool_prefix}mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$MANIFEST_TOOL"; then ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL if test -n "$MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 $as_echo "$MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_MANIFEST_TOOL"; then ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL # Extract the first word of "mt", so it can be a program name with args. set dummy mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_MANIFEST_TOOL"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL if test -n "$ac_ct_MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 $as_echo "$ac_ct_MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_MANIFEST_TOOL" = x; then MANIFEST_TOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL fi else MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" fi test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 $as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } if ${lt_cv_path_mainfest_tool+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&5 if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 $as_echo "$lt_cv_path_mainfest_tool" >&6; } if test yes != "$lt_cv_path_mainfest_tool"; then MANIFEST_TOOL=: fi case $host_os in rhapsody* | darwin*) if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DSYMUTIL"; then ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DSYMUTIL=$ac_cv_prog_DSYMUTIL if test -n "$DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 $as_echo "$DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DSYMUTIL"; then ac_ct_DSYMUTIL=$DSYMUTIL # Extract the first word of "dsymutil", so it can be a program name with args. set dummy dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DSYMUTIL"; then ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL if test -n "$ac_ct_DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 $as_echo "$ac_ct_DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DSYMUTIL" = x; then DSYMUTIL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DSYMUTIL=$ac_ct_DSYMUTIL fi else DSYMUTIL="$ac_cv_prog_DSYMUTIL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. set dummy ${ac_tool_prefix}nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NMEDIT"; then ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi NMEDIT=$ac_cv_prog_NMEDIT if test -n "$NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 $as_echo "$NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_NMEDIT"; then ac_ct_NMEDIT=$NMEDIT # Extract the first word of "nmedit", so it can be a program name with args. set dummy nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_NMEDIT"; then ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_NMEDIT="nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT if test -n "$ac_ct_NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 $as_echo "$ac_ct_NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_NMEDIT" = x; then NMEDIT=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac NMEDIT=$ac_ct_NMEDIT fi else NMEDIT="$ac_cv_prog_NMEDIT" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. set dummy ${ac_tool_prefix}lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$LIPO"; then ac_cv_prog_LIPO="$LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_LIPO="${ac_tool_prefix}lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi LIPO=$ac_cv_prog_LIPO if test -n "$LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 $as_echo "$LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_LIPO"; then ac_ct_LIPO=$LIPO # Extract the first word of "lipo", so it can be a program name with args. set dummy lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_LIPO"; then ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_LIPO="lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO if test -n "$ac_ct_LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 $as_echo "$ac_ct_LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_LIPO" = x; then LIPO=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac LIPO=$ac_ct_LIPO fi else LIPO="$ac_cv_prog_LIPO" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. set dummy ${ac_tool_prefix}otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL"; then ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL="${ac_tool_prefix}otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL=$ac_cv_prog_OTOOL if test -n "$OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 $as_echo "$OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL"; then ac_ct_OTOOL=$OTOOL # Extract the first word of "otool", so it can be a program name with args. set dummy otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL"; then ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL="otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL if test -n "$ac_ct_OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 $as_echo "$ac_ct_OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL" = x; then OTOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL=$ac_ct_OTOOL fi else OTOOL="$ac_cv_prog_OTOOL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. set dummy ${ac_tool_prefix}otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL64"; then ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL64=$ac_cv_prog_OTOOL64 if test -n "$OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 $as_echo "$OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL64"; then ac_ct_OTOOL64=$OTOOL64 # Extract the first word of "otool64", so it can be a program name with args. set dummy otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL64"; then ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL64="otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 if test -n "$ac_ct_OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 $as_echo "$ac_ct_OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL64" = x; then OTOOL64=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL64=$ac_ct_OTOOL64 fi else OTOOL64="$ac_cv_prog_OTOOL64" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 $as_echo_n "checking for -single_module linker flag... " >&6; } if ${lt_cv_apple_cc_single_mod+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_apple_cc_single_mod=no if test -z "$LT_MULTI_MODULE"; then # By default we will add the -single_module flag. You can override # by either setting the environment variable LT_MULTI_MODULE # non-empty at configure time, or by adding -multi_module to the # link flags. rm -rf libconftest.dylib* echo "int foo(void){return 1;}" > conftest.c echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ -dynamiclib -Wl,-single_module conftest.c" >&5 $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ -dynamiclib -Wl,-single_module conftest.c 2>conftest.err _lt_result=$? # If there is a non-empty error log, and "single_module" # appears in it, assume the flag caused a linker warning if test -s conftest.err && $GREP single_module conftest.err; then cat conftest.err >&5 # Otherwise, if the output was created with a 0 exit code from # the compiler, it worked. elif test -f libconftest.dylib && test 0 = "$_lt_result"; then lt_cv_apple_cc_single_mod=yes else cat conftest.err >&5 fi rm -rf libconftest.dylib* rm -f conftest.* fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 $as_echo "$lt_cv_apple_cc_single_mod" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 $as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } if ${lt_cv_ld_exported_symbols_list+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_exported_symbols_list=no save_LDFLAGS=$LDFLAGS echo "_main" > conftest.sym LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_ld_exported_symbols_list=yes else lt_cv_ld_exported_symbols_list=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS=$save_LDFLAGS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 $as_echo "$lt_cv_ld_exported_symbols_list" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 $as_echo_n "checking for -force_load linker flag... " >&6; } if ${lt_cv_ld_force_load+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_force_load=no cat > conftest.c << _LT_EOF int forced_loaded() { return 2;} _LT_EOF echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 echo "$AR cru libconftest.a conftest.o" >&5 $AR cru libconftest.a conftest.o 2>&5 echo "$RANLIB libconftest.a" >&5 $RANLIB libconftest.a 2>&5 cat > conftest.c << _LT_EOF int main() { return 0;} _LT_EOF echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err _lt_result=$? if test -s conftest.err && $GREP force_load conftest.err; then cat conftest.err >&5 elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then lt_cv_ld_force_load=yes else cat conftest.err >&5 fi rm -f conftest.err libconftest.a conftest conftest.c rm -rf conftest.dSYM fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 $as_echo "$lt_cv_ld_force_load" >&6; } case $host_os in rhapsody* | darwin1.[012]) _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; darwin1.*) _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; darwin*) # darwin 5.x on # if running on 10.5 or later, the deployment target defaults # to the OS version, if on x86, and 10.4, the deployment # target defaults to 10.4. 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then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag else if test ia64 = "$host_cpu"; then hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib' allow_undefined_flag="-z nodefs" archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" else # Determine the default libpath from the value encoded in an # empty executable. if test set = "${lt_cv_aix_libpath+set}"; then aix_libpath=$lt_cv_aix_libpath else if ${lt_cv_aix_libpath_+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" # Warning - without using the other run time loading flags, # -berok will link without error, but may produce a broken library. no_undefined_flag=' $wl-bernotok' allow_undefined_flag=' $wl-berok' if test yes = "$with_gnu_ld"; then # We only use this code for GNU lds that support --whole-archive. whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive' else # Exported symbols can be pulled into shared objects from archives whole_archive_flag_spec='$convenience' fi archive_cmds_need_lc=yes archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' # -brtl affects multiple linker settings, -berok does not and is overridden later compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' if test svr4 != "$with_aix_soname"; then # This is similar to how AIX traditionally builds its shared libraries. archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' fi if test aix != "$with_aix_soname"; then archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' else # used by -dlpreopen to get the symbols archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir' fi archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d' fi fi ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' archive_expsym_cmds='' ;; m68k) archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' hardcode_libdir_flag_spec='-L$libdir' hardcode_minus_L=yes ;; esac ;; bsdi[45]*) export_dynamic_flag_spec=-rdynamic ;; cygwin* | mingw* | pw32* | cegcc*) # When not using gcc, we currently assume that we are using # Microsoft Visual C++. # hardcode_libdir_flag_spec is actually meaningless, as there is # no search path for DLLs. case $cc_basename in cl*) # Native MSVC hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported always_export_symbols=yes file_list_spec='@' # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then cp "$export_symbols" "$output_objdir/$soname.def"; echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; else $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; fi~ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ linknames=' # The linker will not automatically build a static lib if we build a DLL. # _LT_TAGVAR(old_archive_from_new_cmds, )='true' enable_shared_with_static_runtimes=yes exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' # Don't use ranlib old_postinstall_cmds='chmod 644 $oldlib' postlink_cmds='lt_outputfile="@OUTPUT@"~ lt_tool_outputfile="@TOOL_OUTPUT@"~ case $lt_outputfile in *.exe|*.EXE) ;; *) lt_outputfile=$lt_outputfile.exe lt_tool_outputfile=$lt_tool_outputfile.exe ;; esac~ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; $RM "$lt_outputfile.manifest"; fi' ;; *) # Assume MSVC wrapper hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' # The linker will automatically build a .lib file if we build a DLL. old_archive_from_new_cmds='true' # FIXME: Should let the user specify the lib program. old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' enable_shared_with_static_runtimes=yes ;; esac ;; darwin* | rhapsody*) archive_cmds_need_lc=no hardcode_direct=no hardcode_automatic=yes hardcode_shlibpath_var=unsupported if test yes = "$lt_cv_ld_force_load"; then whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' else whole_archive_flag_spec='' fi link_all_deplibs=yes allow_undefined_flag=$_lt_dar_allow_undefined case $cc_basename in ifort*|nagfor*) _lt_dar_can_shared=yes ;; *) _lt_dar_can_shared=$GCC ;; esac if test yes = "$_lt_dar_can_shared"; then output_verbose_link_cmd=func_echo_all archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" else ld_shlibs=no fi ;; dgux*) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_libdir_flag_spec='-L$libdir' hardcode_shlibpath_var=no ;; # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor # support. 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linux*) case $cc_basename in tcc*) # Fabrice Bellard et al's Tiny C Compiler ld_shlibs=yes archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' ;; esac ;; netbsd*) if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out else archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF fi hardcode_libdir_flag_spec='-R$libdir' hardcode_direct=yes hardcode_shlibpath_var=no ;; newsos6) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_direct=yes hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: hardcode_shlibpath_var=no ;; *nto* | *qnx*) ;; openbsd* | bitrig*) if test -f /usr/libexec/ld.so; then hardcode_direct=yes hardcode_shlibpath_var=no hardcode_direct_absolute=yes if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' hardcode_libdir_flag_spec='$wl-rpath,$libdir' export_dynamic_flag_spec='$wl-E' else archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' hardcode_libdir_flag_spec='$wl-rpath,$libdir' fi else ld_shlibs=no fi ;; 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fi~ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' enable_shared_with_static_runtimes=yes ;; osf3*) if test yes = "$GCC"; then allow_undefined_flag=' $wl-expect_unresolved $wl\*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' else allow_undefined_flag=' -expect_unresolved \*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' fi archive_cmds_need_lc='no' hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: ;; 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The import file would start with # the line '#! .'. This would cause the generated library to # depend on '.', always an invalid library. This was fixed in # development snapshots of GCC prior to 3.0. case $host_os in aix4 | aix4.[01] | aix4.[01].*) if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' echo ' yes ' echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then : else can_build_shared=no fi ;; esac # Using Import Files as archive members, it is possible to support # filename-based versioning of shared library archives on AIX. While # this would work for both with and without runtime linking, it will # prevent static linking of such archives. So we do filename-based # shared library versioning with .so extension only, which is used # when both runtime linking and shared linking is enabled. # Unfortunately, runtime linking may impact performance, so we do # not want this to be the default eventually. Also, we use the # versioned .so libs for executables only if there is the -brtl # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. # To allow for filename-based versioning support, we need to create # libNAME.so.V as an archive file, containing: # *) an Import File, referring to the versioned filename of the # archive as well as the shared archive member, telling the # bitwidth (32 or 64) of that shared object, and providing the # list of exported symbols of that shared object, eventually # decorated with the 'weak' keyword # *) the shared object with the F_LOADONLY flag set, to really avoid # it being seen by the linker. # At run time we better use the real file rather than another symlink, # but for link time we create the symlink libNAME.so -> libNAME.so.V case $with_aix_soname,$aix_use_runtimelinking in # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct # soname into executable. Probably we can add versioning support to # collect2, so additional links can be useful in future. aix,yes) # traditional libtool dynamic_linker='AIX unversionable lib.so' # If using run time linking (on AIX 4.2 or later) use lib.so # instead of lib.a to let people know that these are not # typical AIX shared libraries. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; aix,no) # traditional AIX only dynamic_linker='AIX lib.a(lib.so.V)' # We preserve .a as extension for shared libraries through AIX4.2 # and later when we are not doing run time linking. library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' ;; svr4,*) # full svr4 only dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,yes) # both, prefer svr4 dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # unpreferred sharedlib libNAME.a needs extra handling postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,no) # both, prefer aix dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' ;; esac shlibpath_var=LIBPATH fi ;; amigaos*) case $host_cpu in powerpc) # Since July 2007 AmigaOS4 officially supports .so libraries. # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; m68k) library_names_spec='$libname.ixlibrary $libname.a' # Create ${libname}_ixlibrary.a entries in /sys/libs. finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' ;; esac ;; beos*) library_names_spec='$libname$shared_ext' dynamic_linker="$host_os ld.so" shlibpath_var=LIBRARY_PATH ;; bsdi[45]*) version_type=linux # correct to gnu/linux during the next big refactor need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' shlibpath_var=LD_LIBRARY_PATH sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" # the default ld.so.conf also contains /usr/contrib/lib and # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow # libtool to hard-code these into programs ;; cygwin* | mingw* | pw32* | cegcc*) version_type=windows shrext_cmds=.dll need_version=no need_lib_prefix=no case $GCC,$cc_basename in yes,*) # gcc library_names_spec='$libname.dll.a' # DLL is installed to $(libdir)/../bin by postinstall_cmds postinstall_cmds='base_file=`basename \$file`~ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ dldir=$destdir/`dirname \$dlpath`~ test -d \$dldir || mkdir -p \$dldir~ $install_prog $dir/$dlname \$dldir/$dlname~ chmod a+x \$dldir/$dlname~ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; fi' postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ dlpath=$dir/\$dldll~ $RM \$dlpath' shlibpath_overrides_runpath=yes case $host_os in cygwin*) # Cygwin DLLs use 'cyg' prefix rather than 'lib' soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" ;; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" sys_lib_dlsearch_path_spec=/usr/lib/hpux32 else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" sys_lib_dlsearch_path_spec=/usr/lib/hpux64 fi ;; hppa*64*) shrext_cmds='.sl' hardcode_into_libs=yes dynamic_linker="$host_os dld.sl" shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec ;; *) shrext_cmds='.sl' dynamic_linker="$host_os dld.sl" shlibpath_var=SHLIB_PATH shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' ;; esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[3-9]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. hardcode_libdir_flag_spec='-L$libdir' ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no # Some binutils ld are patched to set DT_RUNPATH if ${lt_cv_shlibpath_overrides_runpath+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_shlibpath_overrides_runpath=no save_LDFLAGS=$LDFLAGS save_libdir=$libdir eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : lt_cv_shlibpath_overrides_runpath=yes fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS=$save_LDFLAGS libdir=$save_libdir fi shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes # Ideally, we could use ldconfig to report *all* directores which are # searched for libraries, however this is still not possible. 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esac fi sys_lib_dlsearch_path_spec='/usr/lib' ;; tpf*) # TPF is a cross-target only. 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" >&6; } if ${ac_cv_lib_dl_dlopen+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldl $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char shl_load (); int main () { return shl_load (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_dld_shl_load=yes else ac_cv_lib_dld_shl_load=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5 $as_echo "$ac_cv_lib_dld_shl_load" >&6; } if test "x$ac_cv_lib_dld_shl_load" = xyes; then : lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld else ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" if test "x$ac_cv_func_dlopen" = xyes; then : lt_cv_dlopen=dlopen else { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 $as_echo_n "checking for dlopen in -ldl... " >&6; } if ${ac_cv_lib_dl_dlopen+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldl $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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" >&6; } if ${ac_cv_lib_svld_dlopen+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lsvld $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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" >&6; } if ${ac_cv_lib_dld_dld_link+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldld $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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" >&6; } if ${ac_cv_search_socket+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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" >&6; } if ${ac_cv_sizeof_short+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short" "$ac_includes_default"; then : else if test "$ac_cv_type_short" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (short) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_short=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_short" >&5 $as_echo "$ac_cv_sizeof_short" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_SHORT $ac_cv_sizeof_short _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of size_t" >&5 $as_echo_n "checking size of size_t... " >&6; } if ${ac_cv_sizeof_size_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (size_t))" "ac_cv_sizeof_size_t" "$ac_includes_default"; then : else if test "$ac_cv_type_size_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (size_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_size_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_size_t" >&5 $as_echo "$ac_cv_sizeof_size_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_SIZE_T $ac_cv_sizeof_size_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5 $as_echo_n "checking size of void *... " >&6; } if ${ac_cv_sizeof_void_p+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p" "$ac_includes_default"; then : else if test "$ac_cv_type_void_p" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (void *) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_void_p=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5 $as_echo "$ac_cv_sizeof_void_p" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_VOID_P $ac_cv_sizeof_void_p _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of off_t" >&5 $as_echo_n "checking size of off_t... " >&6; } if ${ac_cv_sizeof_off_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (off_t))" "ac_cv_sizeof_off_t" "$ac_includes_default"; then : else if test "$ac_cv_type_off_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (off_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_off_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_off_t" >&5 $as_echo "$ac_cv_sizeof_off_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_OFF_T $ac_cv_sizeof_off_t _ACEOF ac_fn_c_check_type "$LINENO" "struct in6_addr" "ac_cv_type_struct_in6_addr" "#define _GNU_SOURCE #include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_type_struct_in6_addr" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_IN6_ADDR 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "struct sockaddr_in6" "ac_cv_type_struct_sockaddr_in6" "#define _GNU_SOURCE #include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_type_struct_sockaddr_in6" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_IN6 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "sa_family_t" "ac_cv_type_sa_family_t" "#define _GNU_SOURCE #include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_type_sa_family_t" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_SA_FAMILY_T 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "struct addrinfo" "ac_cv_type_struct_addrinfo" "#define _GNU_SOURCE #include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_type_struct_addrinfo" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_ADDRINFO 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "struct sockaddr_storage" "ac_cv_type_struct_sockaddr_storage" "#define _GNU_SOURCE #include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_type_struct_sockaddr_storage" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_STORAGE 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct in6_addr" "s6_addr32" "ac_cv_member_struct_in6_addr_s6_addr32" "#include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_member_struct_in6_addr_s6_addr32" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_IN6_ADDR_S6_ADDR32 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct in6_addr" "s6_addr16" "ac_cv_member_struct_in6_addr_s6_addr16" "#include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_member_struct_in6_addr_s6_addr16" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_IN6_ADDR_S6_ADDR16 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct sockaddr_in" "sin_len" "ac_cv_member_struct_sockaddr_in_sin_len" "#include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_member_struct_sockaddr_in_sin_len" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_IN_SIN_LEN 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct sockaddr_in6" "sin6_len" "ac_cv_member_struct_sockaddr_in6_sin6_len" "#include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_member_struct_sockaddr_in6_sin6_len" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct sockaddr_storage" "ss_family" "ac_cv_member_struct_sockaddr_storage_ss_family" "#include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_member_struct_sockaddr_storage_ss_family" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct sockaddr_storage" "__ss_family" "ac_cv_member_struct_sockaddr_storage___ss_family" "#include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif " if test "x$ac_cv_member_struct_sockaddr_storage___ss_family" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY 1 _ACEOF fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for socklen_t" >&5 $as_echo_n "checking for socklen_t... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include int main () { socklen_t x; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } $as_echo "#define socklen_t unsigned int" >>confdefs.h fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether our compiler supports __func__" >&5 $as_echo_n "checking whether our compiler supports __func__... 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Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char pthread_join (); int main () { return pthread_join (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : acx_pthread_ok=yes fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_ok" >&5 $as_echo "$acx_pthread_ok" >&6; } if test x"$acx_pthread_ok" = xno; then PTHREAD_LIBS="" PTHREAD_CFLAGS="" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" fi # We must check for the threads library under a number of different # names; the ordering is very important because some systems # (e.g. DEC) have both -lpthread and -lpthreads, where one of the # libraries is broken (non-POSIX). # Create a list of thread flags to try. Items starting with a "-" are # C compiler flags, and other items are library names, except for "none" # which indicates that we try without any flags at all, and "pthread-config" # which is a program returning the flags for the Pth emulation library. acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" # The ordering *is* (sometimes) important. Some notes on the # individual items follow: # pthreads: AIX (must check this before -lpthread) # none: in case threads are in libc; should be tried before -Kthread and # other compiler flags to prevent continual compiler warnings # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) # -pthreads: Solaris/gcc # -mthreads: Mingw32/gcc, Lynx/gcc # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it # doesn't hurt to check since this sometimes defines pthreads too; # also defines -D_REENTRANT) # ... -mt is also the pthreads flag for HP/aCC # pthread: Linux, etcetera # --thread-safe: KAI C++ # pthread-config: use pthread-config program (for GNU Pth library) case "${host_cpu}-${host_os}" in *solaris*) # On Solaris (at least, for some versions), libc contains stubbed # (non-functional) versions of the pthreads routines, so link-based # tests will erroneously succeed. (We need to link with -pthreads/-mt/ # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather # a function called by this macro, so we could check for that, but # who knows whether they'll stub that too in a future libc.) So, # we'll just look for -pthreads and -lpthread first: acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags" ;; esac if test x"$acx_pthread_ok" = xno; then for flag in $acx_pthread_flags; do case $flag in none) { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5 $as_echo_n "checking whether pthreads work without any flags... " >&6; } ;; -*) { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5 $as_echo_n "checking whether pthreads work with $flag... 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When coming back to configure, we # need to make the FD available again. if test "$no_create" != yes; then ac_cs_success=: ac_config_status_args= test "$silent" = yes && ac_config_status_args="$ac_config_status_args --quiet" exec 5>/dev/null $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false exec 5>>config.log # Use ||, not &&, to avoid exiting from the if with $? = 1, which # would make configure fail if this is the last instruction. $ac_cs_success || as_fn_exit 1 fi if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} fi dnscrypt-proxy-1.9.4/src/libevent-modified/configure.ac000644 000765 000024 00000053674 13040504344 022625 0ustar00jstaff000000 000000 dnl configure.in for libevent dnl Copyright 2000-2007 Niels Provos dnl Copyright 2007-2012 Niels Provos and Nick Mathewson dnl dnl See LICENSE for copying information. dnl dnl Original version Dug Song AC_PREREQ(2.59) AC_CONFIG_MACRO_DIR([m4]) AC_INIT([libevent],[2.0.23-stable]) AC_CONFIG_SRCDIR([evdns.c]) AM_INIT_AUTOMAKE m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AC_CONFIG_HEADERS(config.h) AC_DEFINE(NUMERIC_VERSION, 0x02001700, [Numeric representation of the version]) dnl Initialize prefix. if test "$prefix" = "NONE"; then prefix="/usr/local" fi AC_CANONICAL_BUILD AC_CANONICAL_HOST dnl the 'build' machine is where we run configure and compile dnl the 'host' machine is where the resulting stuff runs. case "$host_os" in osf5*) CFLAGS="$CFLAGS -D_OSF_SOURCE" ;; esac dnl Checks for programs. AC_PROG_CC AM_PROG_CC_C_O AC_PROG_INSTALL AC_PROG_LN_S # AC_PROG_MKDIR_P - $(MKDIR_P) should be defined by AM_INIT_AUTOMAKE # AC_PROG_SED is only available in Autoconf >= 2.59b; workaround for older # versions ifdef([AC_PROG_SED], [AC_PROG_SED], [ AC_CHECK_PROGS(SED, [gsed sed]) ]) AC_PROG_GCC_TRADITIONAL # We need to test for at least gcc 2.95 here, because older versions don't # have -fno-strict-aliasing AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ #if !defined(__GNUC__) || (__GNUC__ < 2) || (__GNUC__ == 2 && __GNUC_MINOR__ < 95) #error #endif])], have_gcc295=yes, have_gcc295=no) if test "$GCC" = "yes" ; then # Enable many gcc warnings by default... CFLAGS="$CFLAGS -Wall" # And disable the strict-aliasing optimization, since it breaks # our sockaddr-handling code in strange ways. if test x$have_gcc295 = xyes; then CFLAGS="$CFLAGS -fno-strict-aliasing" fi fi # OS X Lion started deprecating the system openssl. Let's just disable # all deprecation warnings on OS X. case "$host_os" in darwin*) CFLAGS="$CFLAGS -Wno-deprecated-declarations" ;; esac AC_ARG_ENABLE(gcc-warnings, AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings with GCC)) AC_ARG_ENABLE(thread-support, AS_HELP_STRING(--disable-thread-support, disable support for threading), [], [enable_thread_support=yes]) AC_ARG_ENABLE(malloc-replacement, AS_HELP_STRING(--disable-malloc-replacement, disable support for replacing the memory mgt functions), [], [enable_malloc_replacement=yes]) AC_ARG_ENABLE(openssl, AS_HELP_STRING(--disable-openssl, disable support for openssl encryption), [], [enable_openssl=yes]) AC_ARG_ENABLE(debug-mode, AS_HELP_STRING(--disable-debug-mode, disable support for running in debug mode), [], [enable_debug_mode=yes]) AC_ARG_ENABLE([libevent-install], AS_HELP_STRING([--disable-libevent-install, disable installation of libevent]), [], [enable_libevent_install=yes]) AC_ARG_ENABLE([libevent-regress], AS_HELP_STRING([--enable-libevent-regress, enable regress in make check]), [enable_libevent_regress=yes], []) AC_ARG_ENABLE([function-sections], AS_HELP_STRING([--enable-function-sections, make static library allow smaller binaries with --gc-sections]), [], [enable_function_sections=no]) AC_PROG_LIBTOOL dnl Uncomment "AC_DISABLE_SHARED" to make shared librraries not get dnl built by default. You can also turn shared libs on and off from dnl the command line with --enable-shared and --disable-shared. dnl AC_DISABLE_SHARED AC_SUBST(LIBTOOL_DEPS) AM_CONDITIONAL([BUILD_REGRESS], [test "$enable_libevent_regress" = "yes"]) dnl Checks for libraries. AC_SEARCH_LIBS([inet_ntoa], [nsl]) AC_SEARCH_LIBS([socket], [socket]) AC_SEARCH_LIBS([inet_aton], [resolv]) AC_SEARCH_LIBS([clock_gettime], [rt]) AC_SEARCH_LIBS([sendfile], [sendfile]) dnl - check if the macro WIN32 is defined on this compiler. dnl - (this is how we check for a windows version of GCC) AC_MSG_CHECKING(for WIN32) AC_TRY_COMPILE(, [ #ifndef WIN32 die horribly #endif ], bwin32=true; AC_MSG_RESULT(yes), bwin32=false; AC_MSG_RESULT(no), ) dnl - check if the macro __CYGWIN__ is defined on this compiler. dnl - (this is how we check for a cygwin version of GCC) AC_MSG_CHECKING(for CYGWIN) AC_TRY_COMPILE(, [ #ifndef __CYGWIN__ die horribly #endif ], cygwin=true; AC_MSG_RESULT(yes), cygwin=false; AC_MSG_RESULT(no), ) AC_CHECK_HEADERS([zlib.h]) if test "x$ac_cv_header_zlib_h" = "xyes"; then dnl Determine if we have zlib for regression tests dnl Don't put this one in LIBS save_LIBS="$LIBS" LIBS="" ZLIB_LIBS="" have_zlib=no AC_SEARCH_LIBS([inflateEnd], [z], [have_zlib=yes ZLIB_LIBS="$LIBS" AC_DEFINE(HAVE_LIBZ, 1, [Define if the system has zlib])]) LIBS="$save_LIBS" AC_SUBST(ZLIB_LIBS) fi AM_CONDITIONAL(ZLIB_REGRESS, [test "$have_zlib" = "yes"]) dnl See if we have openssl. This doesn't go in LIBS either. if test "$bwin32" = true; then EV_LIB_WS32=-lws2_32 EV_LIB_GDI=-lgdi32 else EV_LIB_WS32= EV_LIB_GDI= fi AC_SUBST(EV_LIB_WS32) AC_SUBST(EV_LIB_GDI) AC_SUBST(OPENSSL_LIBADD) AC_CHECK_HEADERS([openssl/bio.h]) if test "$enable_openssl" = "yes"; then save_LIBS="$LIBS" LIBS="" OPENSSL_LIBS="" have_openssl=no AC_SEARCH_LIBS([SSL_new], [ssl], [have_openssl=yes OPENSSL_LIBS="$LIBS -lcrypto $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD" AC_DEFINE(HAVE_OPENSSL, 1, [Define if the system has openssl])], [have_openssl=no], [-lcrypto $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD]) LIBS="$save_LIBS" AC_SUBST(OPENSSL_LIBS) fi dnl Checks for header files. AC_HEADER_STDC AC_CHECK_HEADERS([fcntl.h stdarg.h inttypes.h stdint.h stddef.h poll.h unistd.h sys/epoll.h sys/time.h sys/queue.h sys/event.h sys/param.h sys/ioctl.h sys/select.h sys/devpoll.h port.h netinet/in.h netinet/in6.h sys/socket.h sys/uio.h arpa/inet.h sys/eventfd.h sys/mman.h sys/sendfile.h sys/wait.h netdb.h]) AC_CHECK_HEADERS([sys/stat.h]) AC_CHECK_HEADERS(sys/sysctl.h, [], [], [ #ifdef HAVE_SYS_PARAM_H #include #endif ]) if test "x$ac_cv_header_sys_queue_h" = "xyes"; then AC_MSG_CHECKING(for TAILQ_FOREACH in sys/queue.h) AC_EGREP_CPP(yes, [ #include #ifdef TAILQ_FOREACH yes #endif ], [AC_MSG_RESULT(yes) AC_DEFINE(HAVE_TAILQFOREACH, 1, [Define if TAILQ_FOREACH is defined in ])], AC_MSG_RESULT(no) ) fi if test "x$ac_cv_header_sys_time_h" = "xyes"; then AC_MSG_CHECKING(for timeradd in sys/time.h) AC_EGREP_CPP(yes, [ #include #ifdef timeradd yes #endif ], [ AC_DEFINE(HAVE_TIMERADD, 1, [Define if timeradd is defined in ]) AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no) ) fi if test "x$ac_cv_header_sys_time_h" = "xyes"; then AC_MSG_CHECKING(for timercmp in sys/time.h) AC_EGREP_CPP(yes, [ #include #ifdef timercmp yes #endif ], [ AC_DEFINE(HAVE_TIMERCMP, 1, [Define if timercmp is defined in ]) AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no) ) fi if test "x$ac_cv_header_sys_time_h" = "xyes"; then AC_MSG_CHECKING(for timerclear in sys/time.h) AC_EGREP_CPP(yes, [ #include #ifdef timerclear yes #endif ], [ AC_DEFINE(HAVE_TIMERCLEAR, 1, [Define if timerclear is defined in ]) AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no) ) fi if test "x$ac_cv_header_sys_time_h" = "xyes"; then AC_MSG_CHECKING(for timerisset in sys/time.h) AC_EGREP_CPP(yes, [ #include #ifdef timerisset yes #endif ], [ AC_DEFINE(HAVE_TIMERISSET, 1, [Define if timerisset is defined in ]) AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no) ) fi if test "x$ac_cv_header_sys_sysctl_h" = "xyes"; then AC_CHECK_DECLS([CTL_KERN, KERN_RANDOM, RANDOM_UUID, KERN_ARND], [], [], [[#include #include ]] ) fi AM_CONDITIONAL(BUILD_WIN32, test x$bwin32 = xtrue) AM_CONDITIONAL(BUILD_CYGWIN, test x$cygwin = xtrue) AM_CONDITIONAL(BUILD_WITH_NO_UNDEFINED, test x$bwin32 = xtrue || test x$cygwin = xtrue) if test x$bwin32 = xtrue; then AC_SEARCH_LIBS([getservbyname],[ws2_32]) fi dnl Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_C_INLINE AC_HEADER_TIME dnl Checks for library functions. AC_CHECK_FUNCS([gettimeofday vasprintf fcntl clock_gettime strtok_r strsep]) AC_CHECK_FUNCS([getnameinfo strlcpy inet_ntop inet_pton signal sigaction strtoll inet_aton pipe eventfd sendfile mmap splice arc4random arc4random_buf arc4random_addrandom issetugid geteuid getegid getprotobynumber setenv unsetenv putenv sysctl]) AC_CHECK_FUNCS([umask]) AC_CACHE_CHECK( [for getaddrinfo], [libevent_cv_getaddrinfo], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #ifdef HAVE_NETDB_H #include #endif ]], [[ getaddrinfo; ]] )], [libevent_cv_getaddrinfo=yes], [libevent_cv_getaddrinfo=no] )] ) if test "$libevent_cv_getaddrinfo" = "yes" ; then AC_DEFINE([HAVE_GETADDRINFO], [1], [Do we have getaddrinfo()?]) else AC_CHECK_FUNCS([getservbyname]) # Check for gethostbyname_r in all its glorious incompatible versions. # (This is cut-and-pasted from Tor, which based its logic on # Python's configure.in.) AH_TEMPLATE(HAVE_GETHOSTBYNAME_R, [Define this if you have any gethostbyname_r()]) AC_CHECK_FUNC(gethostbyname_r, [ AC_MSG_CHECKING([how many arguments gethostbyname_r() wants]) OLD_CFLAGS=$CFLAGS CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS" AC_COMPILE_IFELSE([AC_LANG_PROGRAM([ #include ], [[ char *cp1, *cp2; struct hostent *h1, *h2; int i1, i2; (void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2); ]])],[ AC_DEFINE(HAVE_GETHOSTBYNAME_R) AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1, [Define this if gethostbyname_r takes 6 arguments]) AC_MSG_RESULT(6) ], [ AC_TRY_COMPILE([ #include ], [ char *cp1, *cp2; struct hostent *h1; int i1, i2; (void)gethostbyname_r(cp1,h1,cp2,i1,&i2); ], [ AC_DEFINE(HAVE_GETHOSTBYNAME_R) AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1, [Define this if gethostbyname_r takes 5 arguments]) AC_MSG_RESULT(5) ], [ AC_TRY_COMPILE([ #include ], [ char *cp1; struct hostent *h1; struct hostent_data hd; (void) gethostbyname_r(cp1,h1,&hd); ], [ AC_DEFINE(HAVE_GETHOSTBYNAME_R) AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1, [Define this if gethostbyname_r takes 3 arguments]) AC_MSG_RESULT(3) ], [ AC_MSG_RESULT(0) ]) ]) ]) CFLAGS=$OLD_CFLAGS ]) fi AC_CHECK_SIZEOF(long) AC_MSG_CHECKING(for F_SETFD in fcntl.h) AC_EGREP_CPP(yes, [ #define _GNU_SOURCE #include #ifdef F_SETFD yes #endif ], [ AC_DEFINE(HAVE_SETFD, 1, [Define if F_SETFD is defined in ]) AC_MSG_RESULT(yes) ], AC_MSG_RESULT(no)) needsignal=no haveselect=no if test x$bwin32 != xtrue; then AC_CHECK_FUNCS(select, [haveselect=yes], ) if test "x$haveselect" = "xyes" ; then needsignal=yes fi fi AM_CONDITIONAL(SELECT_BACKEND, [test "x$haveselect" = "xyes"]) havepoll=no AC_CHECK_FUNCS(poll, [havepoll=yes], ) if test "x$havepoll" = "xyes" ; then needsignal=yes fi AM_CONDITIONAL(POLL_BACKEND, [test "x$havepoll" = "xyes"]) havedevpoll=no if test "x$ac_cv_header_sys_devpoll_h" = "xyes"; then AC_DEFINE(HAVE_DEVPOLL, 1, [Define if /dev/poll is available]) fi AM_CONDITIONAL(DEVPOLL_BACKEND, [test "x$ac_cv_header_sys_devpoll_h" = "xyes"]) havekqueue=no if test "x$ac_cv_header_sys_event_h" = "xyes"; then AC_CHECK_FUNCS(kqueue, [havekqueue=yes], ) if test "x$havekqueue" = "xyes" ; then AC_MSG_CHECKING(for working kqueue) AC_TRY_RUN( #include #include #include #include #include #include int main(int argc, char **argv) { int kq; int n; int fd[[2]]; struct kevent ev; struct timespec ts; char buf[[8000]]; if (pipe(fd) == -1) exit(1); if (fcntl(fd[[1]], F_SETFL, O_NONBLOCK) == -1) exit(1); while ((n = write(fd[[1]], buf, sizeof(buf))) == sizeof(buf)) ; if ((kq = kqueue()) == -1) exit(1); memset(&ev, 0, sizeof(ev)); ev.ident = fd[[1]]; ev.filter = EVFILT_WRITE; ev.flags = EV_ADD | EV_ENABLE; n = kevent(kq, &ev, 1, NULL, 0, NULL); if (n == -1) exit(1); read(fd[[0]], buf, sizeof(buf)); ts.tv_sec = 0; ts.tv_nsec = 0; n = kevent(kq, NULL, 0, &ev, 1, &ts); if (n == -1 || n == 0) exit(1); exit(0); }, [AC_MSG_RESULT(yes) AC_DEFINE(HAVE_WORKING_KQUEUE, 1, [Define if kqueue works correctly with pipes]) havekqueue=yes ], AC_MSG_RESULT(no), AC_MSG_RESULT(no)) fi fi AM_CONDITIONAL(KQUEUE_BACKEND, [test "x$havekqueue" = "xyes"]) haveepollsyscall=no haveepoll=no AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], ) if test "x$haveepoll" = "xyes" ; then AC_DEFINE(HAVE_EPOLL, 1, [Define if your system supports the epoll system calls]) needsignal=yes fi if test "x$ac_cv_header_sys_epoll_h" = "xyes"; then if test "x$haveepoll" = "xno" ; then AC_MSG_CHECKING(for epoll system call) AC_TRY_RUN( #include #include #include #include #include #include int epoll_create(int size) { return (syscall(__NR_epoll_create, size)); } int main(int argc, char **argv) { int epfd; epfd = epoll_create(256); exit (epfd == -1 ? 1 : 0); }, [AC_MSG_RESULT(yes) AC_DEFINE(HAVE_EPOLL, 1, [Define if your system supports the epoll system calls]) needsignal=yes have_epoll=yes AC_LIBOBJ(epoll_sub) ], AC_MSG_RESULT(no), AC_MSG_RESULT(no)) fi fi AM_CONDITIONAL(EPOLL_BACKEND, [test "x$haveepoll" = "xyes"]) haveeventports=no AC_CHECK_FUNCS(port_create, [haveeventports=yes], ) if test "x$haveeventports" = "xyes" ; then AC_DEFINE(HAVE_EVENT_PORTS, 1, [Define if your system supports event ports]) needsignal=yes fi AM_CONDITIONAL(EVPORT_BACKEND, [test "x$haveeventports" = "xyes"]) if test "x$bwin32" = "xtrue"; then needsignal=yes fi AM_CONDITIONAL(SIGNAL_SUPPORT, [test "x$needsignal" = "xyes"]) AC_TYPE_PID_T AC_TYPE_SIZE_T AC_TYPE_SSIZE_T AC_CHECK_TYPES([uint64_t, uint32_t, uint16_t, uint8_t, uintptr_t], , , [#ifdef HAVE_STDINT_H #include #elif defined(HAVE_INTTYPES_H) #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif]) AC_CHECK_TYPES([fd_mask], , , [#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SELECT_H #include #endif]) AC_CHECK_SIZEOF(long long) AC_CHECK_SIZEOF(long) AC_CHECK_SIZEOF(int) AC_CHECK_SIZEOF(short) AC_CHECK_SIZEOF(size_t) AC_CHECK_SIZEOF(void *) AC_CHECK_SIZEOF(off_t) AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t, struct addrinfo, struct sockaddr_storage], , , [#define _GNU_SOURCE #include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif ]) AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len, struct sockaddr_storage.ss_family, struct sockaddr_storage.__ss_family], , , [#include #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef WIN32 #define WIN32_WINNT 0x400 #define _WIN32_WINNT 0x400 #define WIN32_LEAN_AND_MEAN #if defined(_MSC_VER) && (_MSC_VER < 1300) #include #else #include #include #endif #endif ]) AC_MSG_CHECKING([for socklen_t]) AC_TRY_COMPILE([ #include #include ], [socklen_t x;], AC_MSG_RESULT([yes]), [AC_MSG_RESULT([no]) AC_DEFINE(socklen_t, unsigned int, [Define to unsigned int if you dont have it])] ) AC_MSG_CHECKING([whether our compiler supports __func__]) AC_TRY_COMPILE([], [ const char *cp = __func__; ], AC_MSG_RESULT([yes]), AC_MSG_RESULT([no]) AC_MSG_CHECKING([whether our compiler supports __FUNCTION__]) AC_TRY_COMPILE([], [ const char *cp = __FUNCTION__; ], AC_MSG_RESULT([yes]) AC_DEFINE(__func__, __FUNCTION__, [Define to appropriate substitue if compiler doesnt have __func__]), AC_MSG_RESULT([no]) AC_DEFINE(__func__, __FILE__, [Define to appropriate substitue if compiler doesnt have __func__]))) # check if we can compile with pthreads have_pthreads=no if test x$bwin32 != xtrue && test "$enable_thread_support" != "no"; then ACX_PTHREAD([ AC_DEFINE(HAVE_PTHREADS, 1, [Define if we have pthreads on this system]) have_pthreads=yes]) CFLAGS="$CFLAGS $PTHREAD_CFLAGS" AC_CHECK_SIZEOF(pthread_t, , [AC_INCLUDES_DEFAULT() #include ] ) fi AM_CONDITIONAL(PTHREADS, [test "$have_pthreads" != "no" && test "$enable_thread_support" != "no"]) # check if we should compile locking into the library if test x$enable_thread_support = xno; then AC_DEFINE(DISABLE_THREAD_SUPPORT, 1, [Define if libevent should not be compiled with thread support]) fi # check if we should hard-code the mm functions. if test x$enable_malloc_replacement = xno; then AC_DEFINE(DISABLE_MM_REPLACEMENT, 1, [Define if libevent should not allow replacing the mm functions]) fi # check if we should hard-code debugging out if test x$enable_debug_mode = xno; then AC_DEFINE(DISABLE_DEBUG_MODE, 1, [Define if libevent should build without support for a debug mode]) fi # check if we have and should use openssl AM_CONDITIONAL(OPENSSL, [test "$enable_openssl" != "no" && test "$have_openssl" = "yes"]) # Add some more warnings which we use in development but not in the # released versions. (Some relevant gcc versions can't handle these.) if test x$enable_gcc_warnings = xyes && test "$GCC" = "yes"; then AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ #if !defined(__GNUC__) || (__GNUC__ < 4) #error #endif])], have_gcc4=yes, have_gcc4=no) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2) #error #endif])], have_gcc42=yes, have_gcc42=no) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ #if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) #error #endif])], have_gcc45=yes, have_gcc45=no) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [ #if !defined(__clang__) #error #endif])], have_clang=yes, have_clang=no) CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror" CFLAGS="$CFLAGS -Wno-unused-parameter -Wstrict-aliasing" if test x$have_gcc4 = xyes ; then # These warnings break gcc 3.3.5 and work on gcc 4.0.2 CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement" #CFLAGS="$CFLAGS -Wold-style-definition" fi if test x$have_gcc42 = xyes ; then # These warnings break gcc 4.0.2 and work on gcc 4.2 CFLAGS="$CFLAGS -Waddress" fi if test x$have_gcc42 = xyes && test x$have_clang = xno; then # These warnings break gcc 4.0.2 and clang, but work on gcc 4.2 CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init" fi if test x$have_gcc45 = xyes ; then # These warnings work on gcc 4.5 CFLAGS="$CFLAGS -Wlogical-op" fi if test x$have_clang = xyes; then # Disable the unused-function warnings, because these trigger # for minheap-internal.h related code. CFLAGS="$CFLAGS -Wno-unused-function" # clang on macosx emits warnigns for each directory specified which # isn't "used" generating a lot of build noise (typically 3 warnings # per file case "$host_os" in darwin*) CFLAGS="$CFLAGS -Qunused-arguments" ;; esac fi ##This will break the world on some 64-bit architectures # CFLAGS="$CFLAGS -Winline" fi LIBEVENT_GC_SECTIONS= if test "$GCC" = yes && test "$enable_function_sections" = yes ; then AC_CACHE_CHECK( [if linker supports omitting unused code and data], [libevent_cv_gc_sections_runs], [ dnl NetBSD will link but likely not run with --gc-sections dnl http://bugs.ntp.org/1844 dnl http://gnats.netbsd.org/40401 dnl --gc-sections causes attempt to load as linux elf, with dnl wrong syscalls in place. Test a little gauntlet of dnl simple stdio read code checking for errors, expecting dnl enough syscall differences that the NetBSD code will dnl fail even with Linux emulation working as designed. dnl A shorter test could be refined by someone with access dnl to a NetBSD host with Linux emulation working. origCFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wl,--gc-sections" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #include ]], [[ FILE * fpC; char buf[32]; size_t cch; int read_success_once; fpC = fopen("conftest.c", "r"); if (NULL == fpC) exit(1); do { cch = fread(buf, sizeof(buf), 1, fpC); read_success_once |= (0 != cch); } while (0 != cch); if (!read_success_once) exit(2); if (!feof(fpC)) exit(3); if (0 != fclose(fpC)) exit(4); exit(EXIT_SUCCESS); ]] )], [ dnl We have to do this invocation manually so that we can dnl get the output of conftest.err to make sure it doesn't dnl mention gc-sections. if test "X$cross_compiling" = "Xyes" || grep gc-sections conftest.err ; then libevent_cv_gc_sections_runs=no else libevent_cv_gc_sections_runs=no ./conftest >/dev/null 2>&1 && libevent_cv_gc_sections_runs=yes fi ], [libevent_cv_gc_sections_runs=no] ) CFLAGS="$origCFLAGS" AS_UNSET([origCFLAGS]) ] ) case "$libevent_cv_gc_sections_runs" in yes) CFLAGS="-ffunction-sections -fdata-sections $CFLAGS" LIBEVENT_GC_SECTIONS="-Wl,--gc-sections" ;; esac fi AC_SUBST([LIBEVENT_GC_SECTIONS]) AM_CONDITIONAL([INSTALL_LIBEVENT], [test "$enable_libevent_install" = "yes"]) AC_CONFIG_FILES( [libevent.pc libevent_openssl.pc libevent_pthreads.pc libevent_core.pc libevent_extra.pc] ) AC_OUTPUT(Makefile include/Makefile test/Makefile) dnscrypt-proxy-1.9.4/src/libevent-modified/defer-internal.h000644 000765 000024 00000007162 13037731714 023407 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _DEFER_INTERNAL_H_ #define _DEFER_INTERNAL_H_ #ifdef __cplusplus extern "C" { #endif #include "event2/event-config.h" #include struct deferred_cb; typedef void (*deferred_cb_fn)(struct deferred_cb *, void *); /** A deferred_cb is a callback that can be scheduled to run as part of * an event_base's event_loop, rather than running immediately. */ struct deferred_cb { /** Links to the adjacent active (pending) deferred_cb objects. */ TAILQ_ENTRY (deferred_cb) cb_next; /** True iff this deferred_cb is pending in an event_base. */ unsigned queued : 1; /** The function to execute when the callback runs. */ deferred_cb_fn cb; /** The function's second argument. */ void *arg; }; /** A deferred_cb_queue is a list of deferred_cb that we can add to and run. */ struct deferred_cb_queue { /** Lock used to protect the queue. */ void *lock; /** How many entries are in the queue? */ int active_count; /** Function called when adding to the queue from another thread. */ void (*notify_fn)(struct deferred_cb_queue *, void *); void *notify_arg; /** Deferred callback management: a list of deferred callbacks to * run active the active events. */ TAILQ_HEAD (deferred_cb_list, deferred_cb) deferred_cb_list; }; /** Initialize an empty, non-pending deferred_cb. @param deferred The deferred_cb structure to initialize. @param cb The function to run when the deferred_cb executes. @param arg The function's second argument. */ void event_deferred_cb_init(struct deferred_cb *, deferred_cb_fn, void *); /** Cancel a deferred_cb if it is currently scheduled in an event_base. */ void event_deferred_cb_cancel(struct deferred_cb_queue *, struct deferred_cb *); /** Activate a deferred_cb if it is not currently scheduled in an event_base. */ void event_deferred_cb_schedule(struct deferred_cb_queue *, struct deferred_cb *); #define LOCK_DEFERRED_QUEUE(q) \ EVLOCK_LOCK((q)->lock, 0) #define UNLOCK_DEFERRED_QUEUE(q) \ EVLOCK_UNLOCK((q)->lock, 0) #ifdef __cplusplus } #endif void event_deferred_cb_queue_init(struct deferred_cb_queue *); struct deferred_cb_queue *event_base_get_deferred_cb_queue(struct event_base *); #endif /* _EVENT_INTERNAL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/depcomp000755 000765 000024 00000056016 13040635262 021711 0ustar00jstaff000000 000000 #! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2013-05-30.07; # UTC # Copyright (C) 1999-2014 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try '$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by 'PROGRAMS ARGS'. object Object file output by 'PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputting dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac # Get the directory component of the given path, and save it in the # global variables '$dir'. Note that this directory component will # be either empty or ending with a '/' character. This is deliberate. set_dir_from () { case $1 in */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; *) dir=;; esac } # Get the suffix-stripped basename of the given path, and save it the # global variable '$base'. set_base_from () { base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` } # If no dependency file was actually created by the compiler invocation, # we still have to create a dummy depfile, to avoid errors with the # Makefile "include basename.Plo" scheme. make_dummy_depfile () { echo "#dummy" > "$depfile" } # Factor out some common post-processing of the generated depfile. # Requires the auxiliary global variable '$tmpdepfile' to be set. aix_post_process_depfile () { # If the compiler actually managed to produce a dependency file, # post-process it. if test -f "$tmpdepfile"; then # Each line is of the form 'foo.o: dependency.h'. # Do two passes, one to just change these to # $object: dependency.h # and one to simply output # dependency.h: # which is needed to avoid the deleted-header problem. { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" } > "$depfile" rm -f "$tmpdepfile" else make_dummy_depfile fi } # A tabulation character. tab=' ' # A newline character. nl=' ' # Character ranges might be problematic outside the C locale. # These definitions help. upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ lower=abcdefghijklmnopqrstuvwxyz digits=0123456789 alpha=${upper}${lower} if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Avoid interferences from the environment. gccflag= dashmflag= # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. Note that we *cannot* use a case # here, because this file can only contain one case statement. if test "$depmode" = hp; then # HP compiler uses -M and no extra arg. gccflag=-M depmode=gcc fi if test "$depmode" = dashXmstdout; then # This is just like dashmstdout with a different argument. dashmflag=-xM depmode=dashmstdout fi cygpath_u="cygpath -u -f -" if test "$depmode" = msvcmsys; then # This is just like msvisualcpp but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvisualcpp fi if test "$depmode" = msvc7msys; then # This is just like msvc7 but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvc7 fi if test "$depmode" = xlc; then # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. gccflag=-qmakedep=gcc,-MF depmode=gcc fi case "$depmode" in gcc3) ## gcc 3 implements dependency tracking that does exactly what ## we want. Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. ## Unfortunately, FreeBSD c89 acceptance of flags depends upon ## the command line argument order; so add the flags where they ## appear in depend2.am. Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. ## (see the conditional assignment to $gccflag above). ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. Having to rename by hand is ugly. ## (We might end up doing this anyway to support other compilers.) ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like ## -MM, not -M (despite what the docs say). Also, it might not be ## supported by the other compilers which use the 'gcc' depmode. ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then gccflag=-MD, fi "$@" -Wp,"$gccflag$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" echo "$object : \\" > "$depfile" # The second -e expression handles DOS-style file names with drive # letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. ## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; sgi) if test "$libtool" = yes; then "$@" "-Wp,-MDupdate,$tmpdepfile" else "$@" -MDupdate "$tmpdepfile" fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files echo "$object : \\" > "$depfile" # Clip off the initial element (the dependent). Don't try to be # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). 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This case will never be run, # since it is checked for above. exit 1 ;; none) exec "$@" ;; *) echo "Unknown depmode $depmode" 1>&2 exit 1 ;; esac exit 0 # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: dnscrypt-proxy-1.9.4/src/libevent-modified/devpoll.c000644 000765 000024 00000017161 13037731714 022150 0ustar00jstaff000000 000000 /* * Copyright 2000-2009 Niels Provos * Copyright 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #include #include #include #include #include #include "event2/event.h" #include "event2/event_struct.h" #include "event2/thread.h" #include "event-internal.h" #include "evsignal-internal.h" #include "log-internal.h" #include "evmap-internal.h" #include "evthread-internal.h" struct devpollop { struct pollfd *events; int nevents; int dpfd; struct pollfd *changes; int nchanges; }; static void *devpoll_init(struct event_base *); static int devpoll_add(struct event_base *, int fd, short old, short events, void *); static int devpoll_del(struct event_base *, int fd, short old, short events, void *); static int devpoll_dispatch(struct event_base *, struct timeval *); static void devpoll_dealloc(struct event_base *); const struct eventop devpollops = { "devpoll", devpoll_init, devpoll_add, devpoll_del, devpoll_dispatch, devpoll_dealloc, 1, /* need reinit */ EV_FEATURE_FDS|EV_FEATURE_O1, 0 }; #define NEVENT 32000 static int devpoll_commit(struct devpollop *devpollop) { /* * Due to a bug in Solaris, we have to use pwrite with an offset of 0. * Write is limited to 2GB of data, until it will fail. */ if (pwrite(devpollop->dpfd, devpollop->changes, sizeof(struct pollfd) * devpollop->nchanges, 0) == -1) return (-1); devpollop->nchanges = 0; return (0); } static int devpoll_queue(struct devpollop *devpollop, int fd, int events) { struct pollfd *pfd; if (devpollop->nchanges >= devpollop->nevents) { /* * Change buffer is full, must commit it to /dev/poll before * adding more */ if (devpoll_commit(devpollop) != 0) return (-1); } pfd = &devpollop->changes[devpollop->nchanges++]; pfd->fd = fd; pfd->events = events; pfd->revents = 0; return (0); } static void * devpoll_init(struct event_base *base) { int dpfd, nfiles = NEVENT; struct rlimit rl; struct devpollop *devpollop; if (!(devpollop = mm_calloc(1, sizeof(struct devpollop)))) return (NULL); if (getrlimit(RLIMIT_NOFILE, &rl) == 0 && rl.rlim_cur != RLIM_INFINITY) nfiles = rl.rlim_cur; /* Initialize the kernel queue */ if ((dpfd = evutil_open_closeonexec("/dev/poll", O_RDWR, 0)) == -1) { event_warn("open: /dev/poll"); mm_free(devpollop); return (NULL); } devpollop->dpfd = dpfd; /* Initialize fields */ /* FIXME: allocating 'nfiles' worth of space here can be * expensive and unnecessary. See how epoll.c does it instead. */ devpollop->events = mm_calloc(nfiles, sizeof(struct pollfd)); if (devpollop->events == NULL) { mm_free(devpollop); close(dpfd); return (NULL); } devpollop->nevents = nfiles; devpollop->changes = mm_calloc(nfiles, sizeof(struct pollfd)); if (devpollop->changes == NULL) { mm_free(devpollop->events); mm_free(devpollop); close(dpfd); return (NULL); } evsig_init(base); return (devpollop); } static int devpoll_dispatch(struct event_base *base, struct timeval *tv) { struct devpollop *devpollop = base->evbase; struct pollfd *events = devpollop->events; struct dvpoll dvp; int i, res, timeout = -1; if (devpollop->nchanges) devpoll_commit(devpollop); if (tv != NULL) timeout = tv->tv_sec * 1000 + (tv->tv_usec + 999) / 1000; dvp.dp_fds = devpollop->events; dvp.dp_nfds = devpollop->nevents; dvp.dp_timeout = timeout; EVBASE_RELEASE_LOCK(base, th_base_lock); res = ioctl(devpollop->dpfd, DP_POLL, &dvp); EVBASE_ACQUIRE_LOCK(base, th_base_lock); if (res == -1) { if (errno != EINTR) { event_warn("ioctl: DP_POLL"); return (-1); } return (0); } event_debug(("%s: devpoll_wait reports %d", __func__, res)); for (i = 0; i < res; i++) { int which = 0; int what = events[i].revents; if (what & POLLHUP) what |= POLLIN | POLLOUT; else if (what & POLLERR) what |= POLLIN | POLLOUT; if (what & POLLIN) which |= EV_READ; if (what & POLLOUT) which |= EV_WRITE; if (!which) continue; /* XXX(niels): not sure if this works for devpoll */ evmap_io_active(base, events[i].fd, which); } return (0); } static int devpoll_add(struct event_base *base, int fd, short old, short events, void *p) { struct devpollop *devpollop = base->evbase; int res; (void)p; /* * It's not necessary to OR the existing read/write events that we * are currently interested in with the new event we are adding. * The /dev/poll driver ORs any new events with the existing events * that it has cached for the fd. */ res = 0; if (events & EV_READ) res |= POLLIN; if (events & EV_WRITE) res |= POLLOUT; if (devpoll_queue(devpollop, fd, res) != 0) return (-1); return (0); } static int devpoll_del(struct event_base *base, int fd, short old, short events, void *p) { struct devpollop *devpollop = base->evbase; int res; (void)p; res = 0; if (events & EV_READ) res |= POLLIN; if (events & EV_WRITE) res |= POLLOUT; /* * The only way to remove an fd from the /dev/poll monitored set is * to use POLLREMOVE by itself. This removes ALL events for the fd * provided so if we care about two events and are only removing one * we must re-add the other event after POLLREMOVE. */ if (devpoll_queue(devpollop, fd, POLLREMOVE) != 0) return (-1); if ((res & (POLLIN|POLLOUT)) != (POLLIN|POLLOUT)) { /* * We're not deleting all events, so we must resubmit the * event that we are still interested in if one exists. */ if ((res & POLLIN) && (old & EV_WRITE)) { /* Deleting read, still care about write */ devpoll_queue(devpollop, fd, POLLOUT); } else if ((res & POLLOUT) && (old & EV_READ)) { /* Deleting write, still care about read */ devpoll_queue(devpollop, fd, POLLIN); } } return (0); } static void devpoll_dealloc(struct event_base *base) { struct devpollop *devpollop = base->evbase; evsig_dealloc(base); if (devpollop->events) mm_free(devpollop->events); if (devpollop->changes) mm_free(devpollop->changes); if (devpollop->dpfd >= 0) close(devpollop->dpfd); memset(devpollop, 0, sizeof(struct devpollop)); mm_free(devpollop); } dnscrypt-proxy-1.9.4/src/libevent-modified/Doxyfile000644 000765 000024 00000023736 13037731714 022052 0ustar00jstaff000000 000000 # Doxyfile 1.5.1 # This file describes the settings to be used by the documentation system # doxygen (www.doxygen.org) for a project # # All text after a hash (#) is considered a comment and will be ignored # The format is: # TAG = value [value, ...] # For lists items can also be appended using: # TAG += value [value, ...] # Values that contain spaces should be placed between quotes (" ") #--------------------------------------------------------------------------- # Project related configuration options #--------------------------------------------------------------------------- # The PROJECT_NAME tag is a single word (or a sequence of words surrounded # by quotes) that should identify the project. 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INPUT = \ include/event2/buffer.h \ include/event2/buffer_compat.h \ include/event2/bufferevent.h \ include/event2/bufferevent_compat.h \ include/event2/bufferevent_ssl.h \ include/event2/dns.h \ include/event2/dns_compat.h \ include/event2/event.h \ include/event2/event_compat.h \ include/event2/http.h \ include/event2/http_compat.h \ include/event2/listener.h \ include/event2/rpc.h \ include/event2/rpc_compat.h \ include/event2/tag.h \ include/event2/tag_compat.h \ include/event2/thread.h \ include/event2/util.h #--------------------------------------------------------------------------- # configuration options related to the HTML output #--------------------------------------------------------------------------- # If the GENERATE_HTML tag is set to YES (the default) Doxygen will # generate HTML output. 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MAKEINDEX_CMD_NAME = makeindex # If the COMPACT_LATEX tag is set to YES Doxygen generates more compact # LaTeX documents. This may be useful for small projects and may help to # save some trees in general. COMPACT_LATEX = NO # The PAPER_TYPE tag can be used to set the paper type that is used # by the printer. Possible values are: a4, a4wide, letter, legal and # executive. If left blank a4wide will be used. PAPER_TYPE = a4wide # The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX # packages that should be included in the LaTeX output. EXTRA_PACKAGES = # The LATEX_HEADER tag can be used to specify a personal LaTeX header for # the generated latex document. The header should contain everything until # the first chapter. If it is left blank doxygen will generate a # standard header. Notice: only use this tag if you know what you are doing! LATEX_HEADER = # If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated # is prepared for conversion to pdf (using ps2pdf). The pdf file will # contain links (just like the HTML output) instead of page references # This makes the output suitable for online browsing using a pdf viewer. PDF_HYPERLINKS = NO # If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of # plain latex in the generated Makefile. Set this option to YES to get a # higher quality PDF documentation. USE_PDFLATEX = YES # If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. # command to the generated LaTeX files. This will instruct LaTeX to keep # running if errors occur, instead of asking the user for help. # This option is also used when generating formulas in HTML. LATEX_BATCHMODE = NO # If LATEX_HIDE_INDICES is set to YES then doxygen will not # include the index chapters (such as File Index, Compound Index, etc.) # in the output. LATEX_HIDE_INDICES = NO #--------------------------------------------------------------------------- # configuration options related to the man page output #--------------------------------------------------------------------------- # If the GENERATE_MAN tag is set to YES (the default) Doxygen will # generate man pages GENERATE_MAN = NO # The MAN_EXTENSION tag determines the extension that is added to # the generated man pages (default is the subroutine's section .3) MAN_EXTENSION = .3 # If the MAN_LINKS tag is set to YES and Doxygen generates man output, # then it will generate one additional man file for each entity # documented in the real man page(s). These additional files # only source the real man page, but without them the man command # would be unable to find the correct page. The default is NO. MAN_LINKS = YES #--------------------------------------------------------------------------- # Configuration options related to the preprocessor #--------------------------------------------------------------------------- # If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will # evaluate all C-preprocessor directives found in the sources and include # files. ENABLE_PREPROCESSING = YES # If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro # names in the source code. If set to NO (the default) only conditional # compilation will be performed. Macro expansion can be done in a controlled # way by setting EXPAND_ONLY_PREDEF to YES. MACRO_EXPANSION = NO # If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES # then the macro expansion is limited to the macros specified with the # PREDEFINED and EXPAND_AS_DEFINED tags. EXPAND_ONLY_PREDEF = NO # If the SEARCH_INCLUDES tag is set to YES (the default) the includes files # in the INCLUDE_PATH (see below) will be search if a #include is found. SEARCH_INCLUDES = YES # The INCLUDE_PATH tag can be used to specify one or more directories that # contain include files that are not input files but should be processed by # the preprocessor. INCLUDE_PATH = # You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard # patterns (like *.h and *.hpp) to filter out the header-files in the # directories. If left blank, the patterns specified with FILE_PATTERNS will # be used. INCLUDE_FILE_PATTERNS = # The PREDEFINED tag can be used to specify one or more macro names that # are defined before the preprocessor is started (similar to the -D option of # gcc). The argument of the tag is a list of macros of the form: name # or name=definition (no spaces). If the definition and the = are # omitted =1 is assumed. To prevent a macro definition from being # undefined via #undef or recursively expanded use the := operator # instead of the = operator. PREDEFINED = TAILQ_ENTRY RB_ENTRY _EVENT_DEFINED_TQENTRY _EVENT_IN_DOXYGEN # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then # this tag can be used to specify a list of macro names that should be expanded. # The macro definition that is found in the sources will be used. # Use the PREDEFINED tag if you want to use a different macro definition. EXPAND_AS_DEFINED = # If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then # doxygen's preprocessor will remove all function-like macros that are alone # on a line, have an all uppercase name, and do not end with a semicolon. Such # function macros are typically used for boiler-plate code, and will confuse # the parser if not removed. SKIP_FUNCTION_MACROS = YES dnscrypt-proxy-1.9.4/src/libevent-modified/epoll.c000644 000765 000024 00000031427 13037731714 021617 0ustar00jstaff000000 000000 /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos, Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #include #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #include #include #include #include #include #ifdef _EVENT_HAVE_FCNTL_H #include #endif #include "event-internal.h" #include "evsignal-internal.h" #include "event2/thread.h" #include "evthread-internal.h" #include "log-internal.h" #include "evmap-internal.h" #include "changelist-internal.h" struct epollop { struct epoll_event *events; int nevents; int epfd; }; static void *epoll_init(struct event_base *); static int epoll_dispatch(struct event_base *, struct timeval *); static void epoll_dealloc(struct event_base *); static const struct eventop epollops_changelist = { "epoll (with changelist)", epoll_init, event_changelist_add, event_changelist_del, epoll_dispatch, epoll_dealloc, 1, /* need reinit */ EV_FEATURE_ET|EV_FEATURE_O1, EVENT_CHANGELIST_FDINFO_SIZE }; static int epoll_nochangelist_add(struct event_base *base, evutil_socket_t fd, short old, short events, void *p); static int epoll_nochangelist_del(struct event_base *base, evutil_socket_t fd, short old, short events, void *p); const struct eventop epollops = { "epoll", epoll_init, epoll_nochangelist_add, epoll_nochangelist_del, epoll_dispatch, epoll_dealloc, 1, /* need reinit */ EV_FEATURE_ET|EV_FEATURE_O1, 0 }; #define INITIAL_NEVENT 32 #define MAX_NEVENT 4096 /* On Linux kernels at least up to 2.6.24.4, epoll can't handle timeout * values bigger than (LONG_MAX - 999ULL)/HZ. HZ in the wild can be * as big as 1000, and LONG_MAX can be as small as (1<<31)-1, so the * largest number of msec we can support here is 2147482. Let's * round that down by 47 seconds. */ #define MAX_EPOLL_TIMEOUT_MSEC (35*60*1000) static void * epoll_init(struct event_base *base) { int epfd; struct epollop *epollop; /* Initialize the kernel queue. (The size field is ignored since * 2.6.8.) */ if ((epfd = epoll_create(32000)) == -1) { if (errno != ENOSYS) event_warn("epoll_create"); return (NULL); } evutil_make_socket_closeonexec(epfd); if (!(epollop = mm_calloc(1, sizeof(struct epollop)))) { close(epfd); return (NULL); } epollop->epfd = epfd; /* Initialize fields */ epollop->events = mm_calloc(INITIAL_NEVENT, sizeof(struct epoll_event)); if (epollop->events == NULL) { mm_free(epollop); close(epfd); return (NULL); } epollop->nevents = INITIAL_NEVENT; if ((base->flags & EVENT_BASE_FLAG_EPOLL_USE_CHANGELIST) != 0 || ((base->flags & EVENT_BASE_FLAG_IGNORE_ENV) == 0 && evutil_getenv("EVENT_EPOLL_USE_CHANGELIST") != NULL)) base->evsel = &epollops_changelist; evsig_init(base); return (epollop); } static const char * change_to_string(int change) { change &= (EV_CHANGE_ADD|EV_CHANGE_DEL); if (change == EV_CHANGE_ADD) { return "add"; } else if (change == EV_CHANGE_DEL) { return "del"; } else if (change == 0) { return "none"; } else { return "???"; } } static const char * epoll_op_to_string(int op) { return op == EPOLL_CTL_ADD?"ADD": op == EPOLL_CTL_DEL?"DEL": op == EPOLL_CTL_MOD?"MOD": "???"; } static int epoll_apply_one_change(struct event_base *base, struct epollop *epollop, const struct event_change *ch) { struct epoll_event epev; int op, events = 0; if (1) { /* The logic here is a little tricky. If we had no events set on the fd before, we need to set op="ADD" and set events=the events we want to add. If we had any events set on the fd before, and we want any events to remain on the fd, we need to say op="MOD" and set events=the events we want to remain. But if we want to delete the last event, we say op="DEL" and set events=the remaining events. What fun! */ /* TODO: Turn this into a switch or a table lookup. */ if ((ch->read_change & EV_CHANGE_ADD) || (ch->write_change & EV_CHANGE_ADD)) { /* If we are adding anything at all, we'll want to do * either an ADD or a MOD. */ events = 0; op = EPOLL_CTL_ADD; if (ch->read_change & EV_CHANGE_ADD) { events |= EPOLLIN; } else if (ch->read_change & EV_CHANGE_DEL) { ; } else if (ch->old_events & EV_READ) { events |= EPOLLIN; } if (ch->write_change & EV_CHANGE_ADD) { events |= EPOLLOUT; } else if (ch->write_change & EV_CHANGE_DEL) { ; } else if (ch->old_events & EV_WRITE) { events |= EPOLLOUT; } if ((ch->read_change|ch->write_change) & EV_ET) events |= EPOLLET; if (ch->old_events) { /* If MOD fails, we retry as an ADD, and if * ADD fails we will retry as a MOD. So the * only hard part here is to guess which one * will work. As a heuristic, we'll try * MOD first if we think there were old * events and ADD if we think there were none. * * We can be wrong about the MOD if the file * has in fact been closed and re-opened. * * We can be wrong about the ADD if the * the fd has been re-created with a dup() * of the same file that it was before. */ op = EPOLL_CTL_MOD; } } else if ((ch->read_change & EV_CHANGE_DEL) || (ch->write_change & EV_CHANGE_DEL)) { /* If we're deleting anything, we'll want to do a MOD * or a DEL. */ op = EPOLL_CTL_DEL; if (ch->read_change & EV_CHANGE_DEL) { if (ch->write_change & EV_CHANGE_DEL) { events = EPOLLIN|EPOLLOUT; } else if (ch->old_events & EV_WRITE) { events = EPOLLOUT; op = EPOLL_CTL_MOD; } else { events = EPOLLIN; } } else if (ch->write_change & EV_CHANGE_DEL) { if (ch->old_events & EV_READ) { events = EPOLLIN; op = EPOLL_CTL_MOD; } else { events = EPOLLOUT; } } } if (!events) return 0; memset(&epev, 0, sizeof(epev)); epev.data.fd = ch->fd; epev.events = events; if (epoll_ctl(epollop->epfd, op, ch->fd, &epev) == -1) { if (op == EPOLL_CTL_MOD && errno == ENOENT) { /* If a MOD operation fails with ENOENT, the * fd was probably closed and re-opened. We * should retry the operation as an ADD. */ if (epoll_ctl(epollop->epfd, EPOLL_CTL_ADD, ch->fd, &epev) == -1) { event_warn("Epoll MOD(%d) on %d retried as ADD; that failed too", (int)epev.events, ch->fd); return -1; } else { event_debug(("Epoll MOD(%d) on %d retried as ADD; succeeded.", (int)epev.events, ch->fd)); } } else if (op == EPOLL_CTL_ADD && errno == EEXIST) { /* If an ADD operation fails with EEXIST, * either the operation was redundant (as with a * precautionary add), or we ran into a fun * kernel bug where using dup*() to duplicate the * same file into the same fd gives you the same epitem * rather than a fresh one. For the second case, * we must retry with MOD. */ if (epoll_ctl(epollop->epfd, EPOLL_CTL_MOD, ch->fd, &epev) == -1) { event_warn("Epoll ADD(%d) on %d retried as MOD; that failed too", (int)epev.events, ch->fd); return -1; } else { event_debug(("Epoll ADD(%d) on %d retried as MOD; succeeded.", (int)epev.events, ch->fd)); } } else if (op == EPOLL_CTL_DEL && (errno == ENOENT || errno == EBADF || errno == EPERM)) { /* If a delete fails with one of these errors, * that's fine too: we closed the fd before we * got around to calling epoll_dispatch. */ event_debug(("Epoll DEL(%d) on fd %d gave %s: DEL was unnecessary.", (int)epev.events, ch->fd, strerror(errno))); } else { event_warn("Epoll %s(%d) on fd %d failed. Old events were %d; read change was %d (%s); write change was %d (%s)", epoll_op_to_string(op), (int)epev.events, ch->fd, ch->old_events, ch->read_change, change_to_string(ch->read_change), ch->write_change, change_to_string(ch->write_change)); return -1; } } else { event_debug(("Epoll %s(%d) on fd %d okay. [old events were %d; read change was %d; write change was %d]", epoll_op_to_string(op), (int)epev.events, (int)ch->fd, ch->old_events, ch->read_change, ch->write_change)); } } return 0; } static int epoll_apply_changes(struct event_base *base) { struct event_changelist *changelist = &base->changelist; struct epollop *epollop = base->evbase; struct event_change *ch; int r = 0; int i; for (i = 0; i < changelist->n_changes; ++i) { ch = &changelist->changes[i]; if (epoll_apply_one_change(base, epollop, ch) < 0) r = -1; } return (r); } static int epoll_nochangelist_add(struct event_base *base, evutil_socket_t fd, short old, short events, void *p) { struct event_change ch; ch.fd = fd; ch.old_events = old; ch.read_change = ch.write_change = 0; if (events & EV_WRITE) ch.write_change = EV_CHANGE_ADD | (events & EV_ET); if (events & EV_READ) ch.read_change = EV_CHANGE_ADD | (events & EV_ET); return epoll_apply_one_change(base, base->evbase, &ch); } static int epoll_nochangelist_del(struct event_base *base, evutil_socket_t fd, short old, short events, void *p) { struct event_change ch; ch.fd = fd; ch.old_events = old; ch.read_change = ch.write_change = 0; if (events & EV_WRITE) ch.write_change = EV_CHANGE_DEL; if (events & EV_READ) ch.read_change = EV_CHANGE_DEL; return epoll_apply_one_change(base, base->evbase, &ch); } static int epoll_dispatch(struct event_base *base, struct timeval *tv) { struct epollop *epollop = base->evbase; struct epoll_event *events = epollop->events; int i, res; long timeout = -1; if (tv != NULL) { timeout = evutil_tv_to_msec(tv); if (timeout < 0 || timeout > MAX_EPOLL_TIMEOUT_MSEC) { /* Linux kernels can wait forever if the timeout is * too big; see comment on MAX_EPOLL_TIMEOUT_MSEC. */ timeout = MAX_EPOLL_TIMEOUT_MSEC; } } epoll_apply_changes(base); event_changelist_remove_all(&base->changelist, base); EVBASE_RELEASE_LOCK(base, th_base_lock); res = epoll_wait(epollop->epfd, events, epollop->nevents, timeout); EVBASE_ACQUIRE_LOCK(base, th_base_lock); if (res == -1) { if (errno != EINTR) { event_warn("epoll_wait"); return (-1); } return (0); } event_debug(("%s: epoll_wait reports %d", __func__, res)); EVUTIL_ASSERT(res <= epollop->nevents); for (i = 0; i < res; i++) { int what = events[i].events; short ev = 0; if (what & (EPOLLHUP|EPOLLERR)) { ev = EV_READ | EV_WRITE; } else { if (what & EPOLLIN) ev |= EV_READ; if (what & EPOLLOUT) ev |= EV_WRITE; } if (!ev) continue; evmap_io_active(base, events[i].data.fd, ev | EV_ET); } if (res == epollop->nevents && epollop->nevents < MAX_NEVENT) { /* We used all of the event space this time. We should be ready for more events next time. */ int new_nevents = epollop->nevents * 2; struct epoll_event *new_events; new_events = mm_realloc(epollop->events, new_nevents * sizeof(struct epoll_event)); if (new_events) { epollop->events = new_events; epollop->nevents = new_nevents; } } return (0); } static void epoll_dealloc(struct event_base *base) { struct epollop *epollop = base->evbase; evsig_dealloc(base); if (epollop->events) mm_free(epollop->events); if (epollop->epfd >= 0) close(epollop->epfd); memset(epollop, 0, sizeof(struct epollop)); mm_free(epollop); } dnscrypt-proxy-1.9.4/src/libevent-modified/epoll_sub.c000644 000765 000024 00000004471 13037731714 022467 0ustar00jstaff000000 000000 /* * Copyright 2003-2009 Niels Provos * Copyright 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include int epoll_create(int size) { #if !defined(__NR_epoll_create) && defined(__NR_epoll_create1) if (size <= 0) { errno = EINVAL; return -1; } return (syscall(__NR_epoll_create1, 0)); #else return (syscall(__NR_epoll_create, size)); #endif } int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event) { return (syscall(__NR_epoll_ctl, epfd, op, fd, event)); } int epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout) { #if !defined(__NR_epoll_wait) && defined(__NR_epoll_pwait) return (syscall(__NR_epoll_pwait, epfd, events, maxevents, timeout, NULL, 0)); #else return (syscall(__NR_epoll_wait, epfd, events, maxevents, timeout)); #endif } dnscrypt-proxy-1.9.4/src/libevent-modified/evbuffer-internal.h000644 000765 000024 00000025175 13037731714 024132 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVBUFFER_INTERNAL_H_ #define _EVBUFFER_INTERNAL_H_ #ifdef __cplusplus extern "C" { #endif #include "event2/event-config.h" #include "event2/util.h" #include "util-internal.h" #include "defer-internal.h" /* Experimental cb flag: "never deferred." Implementation note: * these callbacks may get an inaccurate view of n_del/n_added in their * arguments. */ #define EVBUFFER_CB_NODEFER 2 #ifdef WIN32 #include #endif #include /* Minimum allocation for a chain. We define this so that we're burning no * more than 5% of each allocation on overhead. It would be nice to lose even * less space, though. */ #if _EVENT_SIZEOF_VOID_P < 8 #define MIN_BUFFER_SIZE 512 #else #define MIN_BUFFER_SIZE 1024 #endif /** A single evbuffer callback for an evbuffer. This function will be invoked * when bytes are added to or removed from the evbuffer. */ struct evbuffer_cb_entry { /** Structures to implement a doubly-linked queue of callbacks */ TAILQ_ENTRY(evbuffer_cb_entry) next; /** The callback function to invoke when this callback is called. If EVBUFFER_CB_OBSOLETE is set in flags, the cb_obsolete field is valid; otherwise, cb_func is valid. */ union { evbuffer_cb_func cb_func; evbuffer_cb cb_obsolete; } cb; /** Argument to pass to cb. */ void *cbarg; /** Currently set flags on this callback. */ ev_uint32_t flags; }; struct bufferevent; struct evbuffer_chain; struct evbuffer { /** The first chain in this buffer's linked list of chains. */ struct evbuffer_chain *first; /** The last chain in this buffer's linked list of chains. */ struct evbuffer_chain *last; /** Pointer to the next pointer pointing at the 'last_with_data' chain. * * To unpack: * * The last_with_data chain is the last chain that has any data in it. * If all chains in the buffer are empty, it is the first chain. * If the buffer has no chains, it is NULL. * * The last_with_datap pointer points at _whatever 'next' pointer_ * points at the last_with_datap chain. If the last_with_data chain * is the first chain, or it is NULL, then the last_with_datap pointer * is &buf->first. */ struct evbuffer_chain **last_with_datap; /** Total amount of bytes stored in all chains.*/ size_t total_len; /** Number of bytes we have added to the buffer since we last tried to * invoke callbacks. */ size_t n_add_for_cb; /** Number of bytes we have removed from the buffer since we last * tried to invoke callbacks. */ size_t n_del_for_cb; #ifndef _EVENT_DISABLE_THREAD_SUPPORT /** A lock used to mediate access to this buffer. */ void *lock; #endif /** True iff we should free the lock field when we free this * evbuffer. */ unsigned own_lock : 1; /** True iff we should not allow changes to the front of the buffer * (drains or prepends). */ unsigned freeze_start : 1; /** True iff we should not allow changes to the end of the buffer * (appends) */ unsigned freeze_end : 1; /** True iff this evbuffer's callbacks are not invoked immediately * upon a change in the buffer, but instead are deferred to be invoked * from the event_base's loop. Useful for preventing enormous stack * overflows when we have mutually recursive callbacks, and for * serializing callbacks in a single thread. */ unsigned deferred_cbs : 1; #ifdef WIN32 /** True iff this buffer is set up for overlapped IO. */ unsigned is_overlapped : 1; #endif /** Zero or more EVBUFFER_FLAG_* bits */ ev_uint32_t flags; /** Used to implement deferred callbacks. */ struct deferred_cb_queue *cb_queue; /** A reference count on this evbuffer. When the reference count * reaches 0, the buffer is destroyed. Manipulated with * evbuffer_incref and evbuffer_decref_and_unlock and * evbuffer_free. */ int refcnt; /** A deferred_cb handle to make all of this buffer's callbacks * invoked from the event loop. */ struct deferred_cb deferred; /** A doubly-linked-list of callback functions */ TAILQ_HEAD(evbuffer_cb_queue, evbuffer_cb_entry) callbacks; /** The parent bufferevent object this evbuffer belongs to. * NULL if the evbuffer stands alone. */ struct bufferevent *parent; }; #if _EVENT_SIZEOF_OFF_T < _EVENT_SIZEOF_SIZE_T typedef ev_ssize_t ev_misalign_t; #define EVBUFFER_CHAIN_MAX ((size_t)EV_SSIZE_MAX) #else typedef ev_off_t ev_misalign_t; #if _EVENT_SIZEOF_OFF_T > _EVENT_SIZEOF_SIZE_T #define EVBUFFER_CHAIN_MAX EV_SIZE_MAX #else #define EVBUFFER_CHAIN_MAX ((size_t)EV_SSIZE_MAX) #endif #endif /** A single item in an evbuffer. */ struct evbuffer_chain { /** points to next buffer in the chain */ struct evbuffer_chain *next; /** total allocation available in the buffer field. */ size_t buffer_len; /** unused space at the beginning of buffer or an offset into a * file for sendfile buffers. */ ev_misalign_t misalign; /** Offset into buffer + misalign at which to start writing. * In other words, the total number of bytes actually stored * in buffer. */ size_t off; /** Set if special handling is required for this chain */ unsigned flags; #define EVBUFFER_MMAP 0x0001 /**< memory in buffer is mmaped */ #define EVBUFFER_SENDFILE 0x0002 /**< a chain used for sendfile */ #define EVBUFFER_REFERENCE 0x0004 /**< a chain with a mem reference */ #define EVBUFFER_IMMUTABLE 0x0008 /**< read-only chain */ /** a chain that mustn't be reallocated or freed, or have its contents * memmoved, until the chain is un-pinned. */ #define EVBUFFER_MEM_PINNED_R 0x0010 #define EVBUFFER_MEM_PINNED_W 0x0020 #define EVBUFFER_MEM_PINNED_ANY (EVBUFFER_MEM_PINNED_R|EVBUFFER_MEM_PINNED_W) /** a chain that should be freed, but can't be freed until it is * un-pinned. */ #define EVBUFFER_DANGLING 0x0040 /** Usually points to the read-write memory belonging to this * buffer allocated as part of the evbuffer_chain allocation. * For mmap, this can be a read-only buffer and * EVBUFFER_IMMUTABLE will be set in flags. For sendfile, it * may point to NULL. */ unsigned char *buffer; }; /* this is currently used by both mmap and sendfile */ /* TODO(niels): something strange needs to happen for Windows here, I am not * sure what that is, but it needs to get looked into. */ struct evbuffer_chain_fd { int fd; /**< the fd associated with this chain */ }; /** callback for a reference buffer; lets us know what to do with it when * we're done with it. */ struct evbuffer_chain_reference { evbuffer_ref_cleanup_cb cleanupfn; void *extra; }; #define EVBUFFER_CHAIN_SIZE sizeof(struct evbuffer_chain) /** Return a pointer to extra data allocated along with an evbuffer. */ #define EVBUFFER_CHAIN_EXTRA(t, c) (t *)((struct evbuffer_chain *)(c) + 1) /** Assert that we are holding the lock on an evbuffer */ #define ASSERT_EVBUFFER_LOCKED(buffer) \ EVLOCK_ASSERT_LOCKED((buffer)->lock) #define EVBUFFER_LOCK(buffer) \ do { \ EVLOCK_LOCK((buffer)->lock, 0); \ } while (0) #define EVBUFFER_UNLOCK(buffer) \ do { \ EVLOCK_UNLOCK((buffer)->lock, 0); \ } while (0) #define EVBUFFER_LOCK2(buffer1, buffer2) \ do { \ EVLOCK_LOCK2((buffer1)->lock, (buffer2)->lock, 0, 0); \ } while (0) #define EVBUFFER_UNLOCK2(buffer1, buffer2) \ do { \ EVLOCK_UNLOCK2((buffer1)->lock, (buffer2)->lock, 0, 0); \ } while (0) /** Increase the reference count of buf by one. */ void _evbuffer_incref(struct evbuffer *buf); /** Increase the reference count of buf by one and acquire the lock. */ void _evbuffer_incref_and_lock(struct evbuffer *buf); /** Pin a single buffer chain using a given flag. A pinned chunk may not be * moved or freed until it is unpinned. */ void _evbuffer_chain_pin(struct evbuffer_chain *chain, unsigned flag); /** Unpin a single buffer chain using a given flag. */ void _evbuffer_chain_unpin(struct evbuffer_chain *chain, unsigned flag); /** As evbuffer_free, but requires that we hold a lock on the buffer, and * releases the lock before freeing it and the buffer. */ void _evbuffer_decref_and_unlock(struct evbuffer *buffer); /** As evbuffer_expand, but does not guarantee that the newly allocated memory * is contiguous. Instead, it may be split across two or more chunks. */ int _evbuffer_expand_fast(struct evbuffer *, size_t, int); /** Helper: prepares for a readv/WSARecv call by expanding the buffer to * hold enough memory to read 'howmuch' bytes in possibly noncontiguous memory. * Sets up the one or two iovecs in 'vecs' to point to the free memory and its * extent, and *chainp to point to the first chain that we'll try to read into. * Returns the number of vecs used. */ int _evbuffer_read_setup_vecs(struct evbuffer *buf, ev_ssize_t howmuch, struct evbuffer_iovec *vecs, int n_vecs, struct evbuffer_chain ***chainp, int exact); /* Helper macro: copies an evbuffer_iovec in ei to a win32 WSABUF in i. */ #define WSABUF_FROM_EVBUFFER_IOV(i,ei) do { \ (i)->buf = (ei)->iov_base; \ (i)->len = (unsigned long)(ei)->iov_len; \ } while (0) /* XXXX the cast above is safe for now, but not if we allow mmaps on win64. * See note in buffer_iocp's launch_write function */ /** Set the parent bufferevent object for buf to bev */ void evbuffer_set_parent(struct evbuffer *buf, struct bufferevent *bev); void evbuffer_invoke_callbacks(struct evbuffer *buf); #ifdef __cplusplus } #endif #endif /* _EVBUFFER_INTERNAL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evdns.c000644 000765 000024 00000405454 13037731714 021630 0ustar00jstaff000000 000000 /* Copyright 2006-2007 Niels Provos * Copyright 2007-2012 Nick Mathewson and Niels Provos * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* Based on software by Adam Langly. Adam's original message: * * Async DNS Library * Adam Langley * http://www.imperialviolet.org/eventdns.html * Public Domain code * * This software is Public Domain. To view a copy of the public domain dedication, * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. * * I ask and expect, but do not require, that all derivative works contain an * attribution similar to: * Parts developed by Adam Langley * * You may wish to replace the word "Parts" with something else depending on * the amount of original code. * * (Derivative works does not include programs which link against, run or include * the source verbatim in their source distributions) * * Version: 0.1b */ #include #include "event2/event-config.h" #ifndef _FORTIFY_SOURCE #define _FORTIFY_SOURCE 3 #endif #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #ifdef _EVENT_HAVE_STDINT_H #include #endif #include #include #include #ifdef _EVENT_HAVE_UNISTD_H #include #endif #include #include #include #include #ifdef WIN32 #include #include #ifndef _WIN32_IE #define _WIN32_IE 0x400 #endif #include #endif #include "event2/dns.h" #include "event2/dns_struct.h" #include "event2/dns_compat.h" #include "event2/util.h" #include "event2/event.h" #include "event2/event_struct.h" #include "event2/thread.h" #include "event2/buffer.h" #include "event2/bufferevent.h" #include "event2/bufferevent_struct.h" #include "bufferevent-internal.h" #include "defer-internal.h" #include "log-internal.h" #include "mm-internal.h" #include "strlcpy-internal.h" #include "ipv6-internal.h" #include "util-internal.h" #include "evthread-internal.h" #ifdef WIN32 #include #include #include #include #include #else #include #include #include #endif #ifdef _EVENT_HAVE_NETINET_IN6_H #include #endif #define EVDNS_LOG_DEBUG 0 #define EVDNS_LOG_WARN 1 #define EVDNS_LOG_MSG 2 #ifndef HOST_NAME_MAX #define HOST_NAME_MAX 255 #endif #include #undef MIN #define MIN(a,b) ((a)<(b)?(a):(b)) #define ASSERT_VALID_REQUEST(req) \ EVUTIL_ASSERT((req)->handle && (req)->handle->current_req == (req)) #define u64 ev_uint64_t #define u32 ev_uint32_t #define u16 ev_uint16_t #define u8 ev_uint8_t /* maximum number of addresses from a single packet */ /* that we bother recording */ #define MAX_V4_ADDRS 32 #define MAX_V6_ADDRS 32 #define MAX_TXT_RRS 32 #define MAX_TXT_SIZE 255 #define TYPE_A EVDNS_TYPE_A #define TYPE_CNAME 5 #define TYPE_PTR EVDNS_TYPE_PTR #define TYPE_SOA EVDNS_TYPE_SOA #define TYPE_AAAA EVDNS_TYPE_AAAA #define TYPE_TXT EVDNS_TYPE_TXT #define CLASS_INET EVDNS_CLASS_INET /* Persistent handle. We keep this separate from 'struct request' since we * need some object to last for as long as an evdns_request is outstanding so * that it can be canceled, whereas a search request can lead to multiple * 'struct request' instances being created over its lifetime. */ struct evdns_request { struct request *current_req; struct evdns_base *base; int pending_cb; /* Waiting for its callback to be invoked; not * owned by event base any more. */ /* elements used by the searching code */ int search_index; struct search_state *search_state; char *search_origname; /* needs to be free()ed */ int search_flags; }; struct request { u8 *request; /* the dns packet data */ u8 request_type; /* TYPE_PTR or TYPE_A or TYPE_AAAA */ unsigned int request_len; int reissue_count; int tx_count; /* the number of times that this packet has been sent */ void *user_pointer; /* the pointer given to us for this request */ evdns_callback_type user_callback; struct nameserver *ns; /* the server which we last sent it */ /* these objects are kept in a circular list */ /* XXX We could turn this into a CIRCLEQ. */ struct request *next, *prev; struct event timeout_event; u16 trans_id; /* the transaction id */ unsigned request_appended :1; /* true if the request pointer is data which follows this struct */ unsigned transmit_me :1; /* needs to be transmitted */ /* XXXX This is a horrible hack. */ char **put_cname_in_ptr; /* store the cname here if we get one. */ struct evdns_base *base; struct evdns_request *handle; }; struct reply { unsigned int type; unsigned int have_answer : 1; union { struct { u32 addrcount; u32 addresses[MAX_V4_ADDRS]; } a; struct { u32 addrcount; struct in6_addr addresses[MAX_V6_ADDRS]; } aaaa; struct { char name[HOST_NAME_MAX]; } ptr; struct { u32 recordscount; struct txt_record records[MAX_TXT_RRS]; } txt; } data; }; struct nameserver { evutil_socket_t socket; /* a connected UDP socket */ struct sockaddr_storage address; ev_socklen_t addrlen; int failed_times; /* number of times which we have given this server a chance */ int timedout; /* number of times in a row a request has timed out */ struct event event; /* these objects are kept in a circular list */ struct nameserver *next, *prev; struct event timeout_event; /* used to keep the timeout for */ /* when we next probe this server. */ /* Valid if state == 0 */ /* Outstanding probe request for this nameserver, if any */ struct evdns_request *probe_request; char state; /* zero if we think that this server is down */ char choked; /* true if we have an EAGAIN from this server's socket */ char write_waiting; /* true if we are waiting for EV_WRITE events */ struct evdns_base *base; }; /* Represents a local port where we're listening for DNS requests. Right now, */ /* only UDP is supported. */ struct evdns_server_port { evutil_socket_t socket; /* socket we use to read queries and write replies. */ int refcnt; /* reference count. */ char choked; /* Are we currently blocked from writing? */ char closing; /* Are we trying to close this port, pending writes? */ evdns_request_callback_fn_type user_callback; /* Fn to handle requests */ void *user_data; /* Opaque pointer passed to user_callback */ struct event event; /* Read/write event */ /* circular list of replies that we want to write. */ struct server_request *pending_replies; struct event_base *event_base; #ifndef _EVENT_DISABLE_THREAD_SUPPORT void *lock; #endif }; /* Represents part of a reply being built. (That is, a single RR.) */ struct server_reply_item { struct server_reply_item *next; /* next item in sequence. */ char *name; /* name part of the RR */ u16 type; /* The RR type */ u16 class; /* The RR class (usually CLASS_INET) */ u32 ttl; /* The RR TTL */ char is_name; /* True iff data is a label */ u16 datalen; /* Length of data; -1 if data is a label */ void *data; /* The contents of the RR */ }; /* Represents a request that we've received as a DNS server, and holds */ /* the components of the reply as we're constructing it. */ struct server_request { /* Pointers to the next and previous entries on the list of replies */ /* that we're waiting to write. Only set if we have tried to respond */ /* and gotten EAGAIN. */ struct server_request *next_pending; struct server_request *prev_pending; u16 trans_id; /* Transaction id. */ struct evdns_server_port *port; /* Which port received this request on? */ struct sockaddr_storage addr; /* Where to send the response */ ev_socklen_t addrlen; /* length of addr */ int n_answer; /* how many answer RRs have been set? */ int n_authority; /* how many authority RRs have been set? */ int n_additional; /* how many additional RRs have been set? */ struct server_reply_item *answer; /* linked list of answer RRs */ struct server_reply_item *authority; /* linked list of authority RRs */ struct server_reply_item *additional; /* linked list of additional RRs */ /* Constructed response. Only set once we're ready to send a reply. */ /* Once this is set, the RR fields are cleared, and no more should be set. */ char *response; size_t response_len; /* Caller-visible fields: flags, questions. */ struct evdns_server_request base; }; struct evdns_base { /* An array of n_req_heads circular lists for inflight requests. * Each inflight request req is in req_heads[req->trans_id % n_req_heads]. */ struct request **req_heads; /* A circular list of requests that we're waiting to send, but haven't * sent yet because there are too many requests inflight */ struct request *req_waiting_head; /* A circular list of nameservers. */ struct nameserver *server_head; int n_req_heads; struct event_base *event_base; /* The number of good nameservers that we have */ int global_good_nameservers; /* inflight requests are contained in the req_head list */ /* and are actually going out across the network */ int global_requests_inflight; /* requests which aren't inflight are in the waiting list */ /* and are counted here */ int global_requests_waiting; int global_max_requests_inflight; struct timeval global_timeout; /* 5 seconds by default */ int global_max_reissues; /* a reissue occurs when we get some errors from the server */ int global_max_retransmits; /* number of times we'll retransmit a request which timed out */ /* number of timeouts in a row before we consider this server to be down */ int global_max_nameserver_timeout; /* true iff we will use the 0x20 hack to prevent poisoning attacks. */ int global_randomize_case; /* 0: never use TCP 1: fallback to TCP on TC 2: fallback to TCP on error 3: always use TCP */ int global_use_tcp; /* The first time that a nameserver fails, how long do we wait before * probing to see if it has returned? */ struct timeval global_nameserver_probe_initial_timeout; /** Port to bind to for outgoing DNS packets. */ struct sockaddr_storage global_outgoing_address; /** ev_socklen_t for global_outgoing_address. 0 if it isn't set. */ ev_socklen_t global_outgoing_addrlen; struct timeval global_getaddrinfo_allow_skew; int getaddrinfo_ipv4_timeouts; int getaddrinfo_ipv6_timeouts; int getaddrinfo_ipv4_answered; int getaddrinfo_ipv6_answered; struct search_state *global_search_state; TAILQ_HEAD(hosts_list, hosts_entry) hostsdb; #ifndef _EVENT_DISABLE_THREAD_SUPPORT void *lock; #endif }; struct hosts_entry { TAILQ_ENTRY(hosts_entry) next; union { struct sockaddr sa; struct sockaddr_in sin; struct sockaddr_in6 sin6; } addr; int addrlen; char hostname[1]; }; static struct evdns_base *current_base = NULL; struct evdns_base * evdns_get_global_base(void) { return current_base; } /* Given a pointer to an evdns_server_request, get the corresponding */ /* server_request. */ #define TO_SERVER_REQUEST(base_ptr) \ ((struct server_request*) \ (((char*)(base_ptr) - evutil_offsetof(struct server_request, base)))) #define REQ_HEAD(base, id) ((base)->req_heads[id % (base)->n_req_heads]) static struct nameserver *nameserver_pick(struct evdns_base *base); static void evdns_request_insert(struct request *req, struct request **head); static void evdns_request_remove(struct request *req, struct request **head); static void nameserver_ready_callback(evutil_socket_t fd, short events, void *arg); static int evdns_transmit(struct evdns_base *base); static int evdns_request_transmit(struct request *req); static void nameserver_send_probe(struct nameserver *const ns); static void search_request_finished(struct evdns_request *const); static int search_try_next(struct evdns_request *const req); static struct request *search_request_new(struct evdns_base *base, struct evdns_request *handle, int type, const char *const name, int flags, evdns_callback_type user_callback, void *user_arg); static void evdns_requests_pump_waiting_queue(struct evdns_base *base); static u16 transaction_id_pick(struct evdns_base *base); static struct request *request_new(struct evdns_base *base, struct evdns_request *handle, int type, const char *name, int flags, evdns_callback_type callback, void *ptr); static void request_submit(struct request *const req); static int reply_parse(struct evdns_base *base, u8 *packet, int length, int isudp); static int server_request_free(struct server_request *req); static void server_request_free_answers(struct server_request *req); static void server_port_free(struct evdns_server_port *port); static void server_port_ready_callback(evutil_socket_t fd, short events, void *arg); static int evdns_base_resolv_conf_parse_impl(struct evdns_base *base, int flags, const char *const filename); static int evdns_base_set_option_impl(struct evdns_base *base, const char *option, const char *val, int flags); static void evdns_base_free_and_unlock(struct evdns_base *base, int fail_requests); static int evdns_request_transmit_to_tcp(struct request *req, struct nameserver *server); static int strtoint(const char *const str); #ifdef _EVENT_DISABLE_THREAD_SUPPORT #define EVDNS_LOCK(base) _EVUTIL_NIL_STMT #define EVDNS_UNLOCK(base) _EVUTIL_NIL_STMT #define ASSERT_LOCKED(base) _EVUTIL_NIL_STMT #else #define EVDNS_LOCK(base) \ EVLOCK_LOCK((base)->lock, 0) #define EVDNS_UNLOCK(base) \ EVLOCK_UNLOCK((base)->lock, 0) #define ASSERT_LOCKED(base) \ EVLOCK_ASSERT_LOCKED((base)->lock) #endif static void default_evdns_log_fn(int warning, const char *buf) { if (warning == EVDNS_LOG_WARN) event_warnx("[evdns] %s", buf); else if (warning == EVDNS_LOG_MSG) event_msgx("[evdns] %s", buf); else event_debug(("[evdns] %s", buf)); } static evdns_debug_log_fn_type evdns_log_fn = NULL; void evdns_set_log_fn(evdns_debug_log_fn_type fn) { evdns_log_fn = fn; } #ifdef __GNUC__ #define EVDNS_LOG_CHECK __attribute__ ((format(printf, 2, 3))) #else #define EVDNS_LOG_CHECK #endif static void _evdns_log(int warn, const char *fmt, ...) EVDNS_LOG_CHECK; static void _evdns_log(int warn, const char *fmt, ...) { va_list args; char buf[512]; if (!evdns_log_fn) return; va_start(args,fmt); evutil_vsnprintf(buf, sizeof(buf), fmt, args); va_end(args); if (evdns_log_fn) { if (warn == EVDNS_LOG_MSG) warn = EVDNS_LOG_WARN; evdns_log_fn(warn, buf); } else { default_evdns_log_fn(warn, buf); } } #define log _evdns_log /* This walks the list of inflight requests to find the */ /* one with a matching transaction id. Returns NULL on */ /* failure */ static struct request * request_find_from_trans_id(struct evdns_base *base, u16 trans_id) { struct request *req = REQ_HEAD(base, trans_id); struct request *const started_at = req; ASSERT_LOCKED(base); if (req) { do { if (req->trans_id == trans_id) return req; req = req->next; } while (req != started_at); } return NULL; } /* a libevent callback function which is called when a nameserver */ /* has gone down and we want to test if it has came back to life yet */ static void nameserver_prod_callback(evutil_socket_t fd, short events, void *arg) { struct nameserver *const ns = (struct nameserver *) arg; (void)fd; (void)events; EVDNS_LOCK(ns->base); nameserver_send_probe(ns); EVDNS_UNLOCK(ns->base); } /* a libevent callback which is called when a nameserver probe (to see if */ /* it has come back to life) times out. We increment the count of failed_times */ /* and wait longer to send the next probe packet. */ static void nameserver_probe_failed(struct nameserver *const ns) { struct timeval timeout; int i; ASSERT_LOCKED(ns->base); (void) evtimer_del(&ns->timeout_event); if (ns->state == 1) { /* This can happen if the nameserver acts in a way which makes us mark */ /* it as bad and then starts sending good replies. */ return; } #define MAX_PROBE_TIMEOUT 3600 #define TIMEOUT_BACKOFF_FACTOR 3 memcpy(&timeout, &ns->base->global_nameserver_probe_initial_timeout, sizeof(struct timeval)); for (i=ns->failed_times; i > 0 && timeout.tv_sec < MAX_PROBE_TIMEOUT; --i) { timeout.tv_sec *= TIMEOUT_BACKOFF_FACTOR; timeout.tv_usec *= TIMEOUT_BACKOFF_FACTOR; if (timeout.tv_usec > 1000000) { timeout.tv_sec += timeout.tv_usec / 1000000; timeout.tv_usec %= 1000000; } } if (timeout.tv_sec > MAX_PROBE_TIMEOUT) { timeout.tv_sec = MAX_PROBE_TIMEOUT; timeout.tv_usec = 0; } ns->failed_times++; if (evtimer_add(&ns->timeout_event, &timeout) < 0) { char addrbuf[128]; log(EVDNS_LOG_WARN, "Error from libevent when adding timer event for %s", evutil_format_sockaddr_port( (struct sockaddr *)&ns->address, addrbuf, sizeof(addrbuf))); } } /* called when a nameserver has been deemed to have failed. For example, too */ /* many packets have timed out etc */ static void nameserver_failed(struct nameserver *const ns, const char *msg) { struct request *req, *started_at; struct evdns_base *base = ns->base; int i; char addrbuf[128]; ASSERT_LOCKED(base); /* if this nameserver has already been marked as failed */ /* then don't do anything */ if (!ns->state) return; log(EVDNS_LOG_MSG, "Nameserver %s has failed: %s", evutil_format_sockaddr_port( (struct sockaddr *)&ns->address, addrbuf, sizeof(addrbuf)), msg); base->global_good_nameservers--; EVUTIL_ASSERT(base->global_good_nameservers >= 0); if (base->global_good_nameservers == 0) { log(EVDNS_LOG_MSG, "All nameservers have failed"); } ns->state = 0; ns->failed_times = 1; if (evtimer_add(&ns->timeout_event, &base->global_nameserver_probe_initial_timeout) < 0) { log(EVDNS_LOG_WARN, "Error from libevent when adding timer event for %s", evutil_format_sockaddr_port( (struct sockaddr *)&ns->address, addrbuf, sizeof(addrbuf))); /* ???? Do more? */ } /* walk the list of inflight requests to see if any can be reassigned to */ /* a different server. Requests in the waiting queue don't have a */ /* nameserver assigned yet */ /* if we don't have *any* good nameservers then there's no point */ /* trying to reassign requests to one */ if (!base->global_good_nameservers) return; for (i = 0; i < base->n_req_heads; ++i) { req = started_at = base->req_heads[i]; if (req) { do { if (req->tx_count == 0 && req->ns == ns) { /* still waiting to go out, can be moved */ /* to another server */ req->ns = nameserver_pick(base); } req = req->next; } while (req != started_at); } } } static void nameserver_up(struct nameserver *const ns) { char addrbuf[128]; ASSERT_LOCKED(ns->base); if (ns->state) return; log(EVDNS_LOG_MSG, "Nameserver %s is back up", evutil_format_sockaddr_port( (struct sockaddr *)&ns->address, addrbuf, sizeof(addrbuf))); evtimer_del(&ns->timeout_event); if (ns->probe_request) { evdns_cancel_request(ns->base, ns->probe_request); ns->probe_request = NULL; } ns->state = 1; ns->failed_times = 0; ns->timedout = 0; ns->base->global_good_nameservers++; } static void request_trans_id_set(struct request *const req, const u16 trans_id) { req->trans_id = trans_id; *((u16 *) req->request) = htons(trans_id); } /* Called to remove a request from a list and dealloc it. */ /* head is a pointer to the head of the list it should be */ /* removed from or NULL if the request isn't in a list. */ /* when free_handle is one, free the handle as well. */ static void request_finished(struct request *const req, struct request **head, int free_handle) { struct evdns_base *base = req->base; int was_inflight = (head != &base->req_waiting_head); EVDNS_LOCK(base); ASSERT_VALID_REQUEST(req); if (head) evdns_request_remove(req, head); log(EVDNS_LOG_DEBUG, "Removing timeout for request %p", req); if (was_inflight) { evtimer_del(&req->timeout_event); base->global_requests_inflight--; } else { base->global_requests_waiting--; } /* it was initialized during request_new / evtimer_assign */ event_debug_unassign(&req->timeout_event); if (!req->request_appended) { /* need to free the request data on it's own */ mm_free(req->request); } else { /* the request data is appended onto the header */ /* so everything gets free()ed when we: */ } if (req->handle) { EVUTIL_ASSERT(req->handle->current_req == req); if (free_handle) { search_request_finished(req->handle); req->handle->current_req = NULL; if (! req->handle->pending_cb) { /* If we're planning to run the callback, * don't free the handle until later. */ mm_free(req->handle); } req->handle = NULL; /* If we have a bug, let's crash * early */ } else { req->handle->current_req = NULL; } } mm_free(req); evdns_requests_pump_waiting_queue(base); EVDNS_UNLOCK(base); } /* This is called when a server returns a funny error code. */ /* We try the request again with another server. */ /* */ /* return: */ /* 0 ok */ /* 1 failed/reissue is pointless */ static int request_reissue(struct request *req) { const struct nameserver *const last_ns = req->ns; ASSERT_LOCKED(req->base); ASSERT_VALID_REQUEST(req); /* the last nameserver should have been marked as failing */ /* by the caller of this function, therefore pick will try */ /* not to return it */ req->ns = nameserver_pick(req->base); if (req->ns == last_ns) { /* ... but pick did return it */ /* not a lot of point in trying again with the */ /* same server */ return 1; } req->reissue_count++; req->tx_count = 0; req->transmit_me = 1; return 0; } /* this function looks for space on the inflight queue and promotes */ /* requests from the waiting queue if it can. */ /* */ /* TODO: */ /* add return code, see at nameserver_pick() and other functions. */ static void evdns_requests_pump_waiting_queue(struct evdns_base *base) { ASSERT_LOCKED(base); while (base->global_requests_inflight < base->global_max_requests_inflight && base->global_requests_waiting) { struct request *req; EVUTIL_ASSERT(base->req_waiting_head); req = base->req_waiting_head; req->ns = nameserver_pick(base); if (!req->ns) return; /* move a request from the waiting queue to the inflight queue */ evdns_request_remove(req, &base->req_waiting_head); base->global_requests_waiting--; base->global_requests_inflight++; request_trans_id_set(req, transaction_id_pick(base)); evdns_request_insert(req, &REQ_HEAD(base, req->trans_id)); evdns_request_transmit(req); evdns_transmit(base); } } /* TODO(nickm) document */ struct deferred_reply_callback { struct deferred_cb deferred; struct evdns_request *handle; u8 request_type; u8 have_reply; u32 ttl; u32 err; evdns_callback_type user_callback; struct reply reply; }; static void reply_run_callback(struct deferred_cb *d, void *user_pointer) { struct deferred_reply_callback *cb = EVUTIL_UPCAST(d, struct deferred_reply_callback, deferred); switch (cb->request_type) { case TYPE_A: if (cb->have_reply) cb->user_callback(DNS_ERR_NONE, DNS_IPv4_A, cb->reply.data.a.addrcount, cb->ttl, cb->reply.data.a.addresses, user_pointer); else cb->user_callback(cb->err, 0, 0, cb->ttl, NULL, user_pointer); break; case TYPE_PTR: if (cb->have_reply) { char *name = cb->reply.data.ptr.name; cb->user_callback(DNS_ERR_NONE, DNS_PTR, 1, cb->ttl, &name, user_pointer); } else { cb->user_callback(cb->err, 0, 0, cb->ttl, NULL, user_pointer); } break; case TYPE_AAAA: if (cb->have_reply) cb->user_callback(DNS_ERR_NONE, DNS_IPv6_AAAA, cb->reply.data.aaaa.addrcount, cb->ttl, cb->reply.data.aaaa.addresses, user_pointer); else cb->user_callback(cb->err, 0, 0, cb->ttl, NULL, user_pointer); break; case TYPE_TXT: if (cb->have_reply) cb->user_callback(DNS_ERR_NONE, DNS_TXT, cb->reply.data.txt.recordscount, cb->ttl, cb->reply.data.txt.records, user_pointer); else cb->user_callback(cb->err, 0, 0, cb->ttl, NULL, user_pointer); break; default: EVUTIL_ASSERT(0); } if (cb->handle && cb->handle->pending_cb) { mm_free(cb->handle); } mm_free(cb); } static void reply_schedule_callback(struct request *const req, u32 ttl, u32 err, struct reply *reply) { struct deferred_reply_callback *d = mm_calloc(1, sizeof(*d)); if (!d) { event_warn("%s: Couldn't allocate space for deferred callback.", __func__); return; } ASSERT_LOCKED(req->base); d->request_type = req->request_type; d->user_callback = req->user_callback; d->ttl = ttl; d->err = err; if (reply) { d->have_reply = 1; memcpy(&d->reply, reply, sizeof(struct reply)); } if (req->handle) { req->handle->pending_cb = 1; d->handle = req->handle; } event_deferred_cb_init(&d->deferred, reply_run_callback, req->user_pointer); event_deferred_cb_schedule( event_base_get_deferred_cb_queue(req->base->event_base), &d->deferred); } static void evdns_request_read_cb_tcp(struct bufferevent *bev, void *ctx) { struct request *req = ctx; struct evbuffer *buf; unsigned char *pp; size_t size; uint16_t in_len; if (!req) goto err; buf = bufferevent_get_input(bev); if (!buf) goto err; size = evbuffer_get_length(buf); if (size < sizeof(in_len)) return; if (evbuffer_copyout(buf, &in_len, sizeof(in_len)) != sizeof(in_len)) goto err; in_len = ntohs(in_len); if (size < in_len + sizeof(in_len)) return; if (evbuffer_drain(buf, sizeof(in_len))) goto err; pp = evbuffer_pullup(buf, in_len); if (!pp) goto err; reply_parse(req->base, pp, in_len, 0); err: bufferevent_free(bev); } static void evdns_request_event_cb_tcp(struct bufferevent *bev, short what, void *ctx) { struct request *req = ctx; if ((what & (BEV_EVENT_ERROR | BEV_EVENT_READING | BEV_EVENT_WRITING | BEV_EVENT_TIMEOUT)) == 0) { return; } bufferevent_free(bev); if (req) { reply_schedule_callback(req, 0, DNS_ERR_TRUNCATED, NULL); request_finished(req, &REQ_HEAD(req->base, req->trans_id), 1); } } /* try to send a request to a given server over tcp. */ /* */ /* return: */ /* 0 ok */ /* 1 temporary failure */ /* 2 other failure */ static int evdns_request_transmit_to_tcp(struct request *req, struct nameserver *server) { struct bufferevent *be; uint16_t len; ASSERT_LOCKED(req->base); ASSERT_VALID_REQUEST(req); be = bufferevent_socket_new(req->base->event_base, -1, BEV_OPT_CLOSE_ON_FREE); if (!be) return 1; if (bufferevent_socket_connect(be, (struct sockaddr *)&server->address, server->addrlen)) goto error_ret_free_be; len = htons(req->request_len); if (bufferevent_write(be, &len, sizeof(len))) goto error_ret_free_be; if (bufferevent_write(be, (void*)req->request, req->request_len)) goto error_ret_free_be; bufferevent_setcb(be, evdns_request_read_cb_tcp, NULL, evdns_request_event_cb_tcp, req); if (bufferevent_set_timeouts(be, &req->base->global_timeout, &req->base->global_timeout)) goto error_ret_free_be; if (bufferevent_enable(be, EV_READ|EV_WRITE)) goto error_ret_free_be; return 0; error_ret_free_be: bufferevent_free(be); return 1; } /* this processes a parsed reply packet */ static void reply_handle(struct request *const req, u16 flags, u32 ttl, struct reply *reply, int isudp) { int error; char addrbuf[128]; static const int error_codes[] = { DNS_ERR_FORMAT, DNS_ERR_SERVERFAILED, DNS_ERR_NOTEXIST, DNS_ERR_NOTIMPL, DNS_ERR_REFUSED }; ASSERT_LOCKED(req->base); ASSERT_VALID_REQUEST(req); if (flags & 0x020f || !reply || !reply->have_answer) { /* there was an error */ if (flags & 0x0200) { error = DNS_ERR_TRUNCATED; } else if (flags & 0x000f) { u16 error_code = (flags & 0x000f) - 1; if (error_code > 4) { error = DNS_ERR_UNKNOWN; } else { error = error_codes[error_code]; } } else if (reply && !reply->have_answer) { error = DNS_ERR_NODATA; } else { error = DNS_ERR_UNKNOWN; } switch (error) { case DNS_ERR_NOTIMPL: case DNS_ERR_REFUSED: /* we regard these errors as marking a bad nameserver */ if (req->reissue_count < req->base->global_max_reissues) { char msg[64]; evutil_snprintf(msg, sizeof(msg), "Bad response %d (%s)", error, evdns_err_to_string(error)); nameserver_failed(req->ns, msg); if (!request_reissue(req)) return; } break; case DNS_ERR_SERVERFAILED: /* rcode 2 (servfailed) sometimes means "we * are broken" and sometimes (with some binds) * means "that request was very confusing." * Treat this as a timeout, not a failure. */ log(EVDNS_LOG_DEBUG, "Got a SERVERFAILED from nameserver" "at %s; will allow the request to time out.", evutil_format_sockaddr_port( (struct sockaddr *)&req->ns->address, addrbuf, sizeof(addrbuf))); break; default: /* we got a good reply from the nameserver: it is up. */ if (req->handle == req->ns->probe_request) { /* Avoid double-free */ req->ns->probe_request = NULL; } nameserver_up(req->ns); } if (req->handle->search_state && req->request_type != TYPE_PTR) { /* if we have a list of domains to search in, * try the next one */ if (!search_try_next(req->handle)) { /* a new request was issued so this * request is finished and */ /* the user callback will be made when * that request (or a */ /* child of it) finishes. */ return; } } /* retry over TCP, or pass the failure up */ if (isudp == 0 || (req->base->global_use_tcp != 2 && (req->base->global_use_tcp != 1 || error != DNS_ERR_TRUNCATED)) || evdns_request_transmit_to_tcp(req, req->ns) != 0) { reply_schedule_callback(req, ttl, error, NULL); request_finished(req, &REQ_HEAD(req->base, req->trans_id), 1); } } else { /* all ok, tell the user */ reply_schedule_callback(req, ttl, 0, reply); if (req->handle == req->ns->probe_request) req->ns->probe_request = NULL; /* Avoid double-free */ nameserver_up(req->ns); request_finished(req, &REQ_HEAD(req->base, req->trans_id), 1); } } static int name_parse(u8 *packet, int length, int *idx, char *name_out, int name_out_len) { int name_end = -1; int j = *idx; int ptr_count = 0; #define GET32(x) do { if (j + 4 > length) goto err; memcpy(&_t32, packet + j, 4); j += 4; x = ntohl(_t32); } while (0) #define GET16(x) do { if (j + 2 > length) goto err; memcpy(&_t, packet + j, 2); j += 2; x = ntohs(_t); } while (0) #define GET8(x) do { if (j >= length) goto err; x = packet[j++]; } while (0) char *cp = name_out; const char *const end = name_out + name_out_len; /* Normally, names are a series of length prefixed strings terminated */ /* with a length of 0 (the lengths are u8's < 63). */ /* However, the length can start with a pair of 1 bits and that */ /* means that the next 14 bits are a pointer within the current */ /* packet. */ for (;;) { u8 label_len; if (j >= length) return -1; GET8(label_len); if (!label_len) break; if (label_len & 0xc0) { u8 ptr_low; GET8(ptr_low); if (name_end < 0) name_end = j; j = (((int)label_len & 0x3f) << 8) + ptr_low; /* Make sure that the target offset is in-bounds. */ if (j < 0 || j >= length) return -1; /* If we've jumped more times than there are characters in the * message, we must have a loop. */ if (++ptr_count > length) return -1; continue; } if (label_len > 63) return -1; if (cp != name_out) { if (cp + 1 >= end) return -1; *cp++ = '.'; } if (cp + label_len >= end) return -1; memcpy(cp, packet + j, label_len); cp += label_len; j += label_len; } if (cp >= end) return -1; *cp = '\0'; if (name_end < 0) *idx = j; else *idx = name_end; return 0; err: return -1; } /* parses a raw request from a nameserver */ static int reply_parse(struct evdns_base *base, u8 *packet, int length, int isudp) { int j = 0, k = 0; /* index into packet */ u16 _t; /* used by the macros */ u32 _t32; /* used by the macros */ char tmp_name[256], cmp_name[256]; /* used by the macros */ int name_matches = 0; u16 trans_id, questions, answers, authority, additional, datalength; u16 flags = 0; u32 ttl, ttl_r = 0xffffffff; struct reply reply; struct request *req = NULL; unsigned int i; ASSERT_LOCKED(base); GET16(trans_id); GET16(flags); GET16(questions); GET16(answers); GET16(authority); GET16(additional); (void) authority; /* suppress "unused variable" warnings. */ (void) additional; /* suppress "unused variable" warnings. */ req = request_find_from_trans_id(base, trans_id); if (!req) return -1; EVUTIL_ASSERT(req->base == base); memset(&reply, 0, sizeof(reply)); /* If it's not an answer, it doesn't correspond to any request. */ if (!(flags & 0x8000)) return -1; /* must be an answer */ if ((flags & 0x020f) && (flags & 0x020f) != DNS_ERR_NOTEXIST) { /* there was an error and it's not NXDOMAIN */ goto err; } /* if (!answers) return; */ /* must have an answer of some form */ /* This macro skips a name in the DNS reply. */ #define SKIP_NAME \ do { tmp_name[0] = '\0'; \ if (name_parse(packet, length, &j, tmp_name, \ sizeof(tmp_name))<0) \ goto err; \ } while (0) #define TEST_NAME \ do { tmp_name[0] = '\0'; \ cmp_name[0] = '\0'; \ k = j; \ if (name_parse(packet, length, &j, tmp_name, \ sizeof(tmp_name))<0) \ goto err; \ if (name_parse(req->request, req->request_len, &k, \ cmp_name, sizeof(cmp_name))<0) \ goto err; \ if (base->global_randomize_case) { \ if (strcmp(tmp_name, cmp_name) == 0) \ name_matches = 1; \ } else { \ if (evutil_ascii_strcasecmp(tmp_name, cmp_name) == 0) \ name_matches = 1; \ } \ } while (0) reply.type = req->request_type; /* skip over each question in the reply */ for (i = 0; i < questions; ++i) { /* the question looks like * */ TEST_NAME; j += 4; if (j > length) goto err; } if (!name_matches) goto err; /* now we have the answer section which looks like * */ for (i = 0; i < answers; ++i) { u16 type, class; SKIP_NAME; GET16(type); GET16(class); GET32(ttl); GET16(datalength); EVUTIL_ASSERT(INT_MAX > 0xFFFF + 0xFFFF); if (datalength <= 0U || j + datalength > length) break; if (type == TYPE_A && class == CLASS_INET) { int addrcount, addrtocopy; if (req->request_type != TYPE_A) { j += datalength; continue; } if ((datalength & 3) != 0) /* not an even number of As. */ goto err; addrcount = datalength >> 2; addrtocopy = MIN(MAX_V4_ADDRS - reply.data.a.addrcount, (unsigned)addrcount); ttl_r = MIN(ttl_r, ttl); /* we only bother with the first four addresses. */ if (j + 4*addrtocopy > length) goto err; memcpy(&reply.data.a.addresses[reply.data.a.addrcount], packet + j, 4*addrtocopy); j += 4*addrtocopy; reply.data.a.addrcount += addrtocopy; reply.have_answer = 1; if (reply.data.a.addrcount == MAX_V4_ADDRS) break; } else if (type == TYPE_PTR && class == CLASS_INET) { if (req->request_type != TYPE_PTR) { j += datalength; continue; } if (name_parse(packet, length, &j, reply.data.ptr.name, sizeof(reply.data.ptr.name))<0) goto err; ttl_r = MIN(ttl_r, ttl); reply.have_answer = 1; break; } else if (type == TYPE_CNAME) { char cname[HOST_NAME_MAX]; if (!req->put_cname_in_ptr || *req->put_cname_in_ptr) { j += datalength; continue; } if (name_parse(packet, length, &j, cname, sizeof(cname))<0) goto err; *req->put_cname_in_ptr = mm_strdup(cname); } else if (type == TYPE_AAAA && class == CLASS_INET) { int addrcount, addrtocopy; if (req->request_type != TYPE_AAAA) { j += datalength; continue; } if ((datalength & 15) != 0) /* not an even number of AAAAs. */ goto err; addrcount = datalength >> 4; /* each address is 16 bytes long */ addrtocopy = MIN(MAX_V6_ADDRS - reply.data.aaaa.addrcount, (unsigned)addrcount); ttl_r = MIN(ttl_r, ttl); /* we only bother with the first four addresses. */ if (j + 16*addrtocopy > length) goto err; memcpy(&reply.data.aaaa.addresses[reply.data.aaaa.addrcount], packet + j, 16*addrtocopy); reply.data.aaaa.addrcount += addrtocopy; j += 16*addrtocopy; reply.have_answer = 1; if (reply.data.aaaa.addrcount == MAX_V6_ADDRS) break; } else if (type == TYPE_TXT) { if (req->request_type != TYPE_TXT) { j += datalength; continue; } size_t mergedlen = 0U; size_t mergenum = 0U; while (mergedlen + mergenum < datalength) { u8 txtlen; txtlen = packet[j + mergedlen + mergenum]; if (mergedlen + txtlen > sizeof reply.data.txt.records[0].txt || datalength <= mergedlen + txtlen || j + mergedlen + txtlen >= length) { goto err; } memcpy(reply.data.txt.records[reply.data.txt.recordscount].txt + mergedlen, &packet[j + mergedlen + mergenum + 1], txtlen); mergedlen += txtlen; mergenum++; } reply.data.txt.records[reply.data.txt.recordscount].len = mergedlen; reply.data.txt.recordscount++; ttl_r = MIN(ttl_r, ttl); reply.have_answer = 1; j += datalength; if (reply.data.txt.recordscount >= MAX_TXT_RRS) { break; } } else { /* skip over any other type of resource */ j += datalength; } } if (!reply.have_answer) { for (i = 0; i < authority; ++i) { u16 type, class; SKIP_NAME; GET16(type); GET16(class); GET32(ttl); GET16(datalength); if (type == TYPE_SOA && class == CLASS_INET) { u32 serial, refresh, retry, expire, minimum; SKIP_NAME; SKIP_NAME; GET32(serial); GET32(refresh); GET32(retry); GET32(expire); GET32(minimum); (void)expire; (void)retry; (void)refresh; (void)serial; ttl_r = MIN(ttl_r, ttl); ttl_r = MIN(ttl_r, minimum); } else { /* skip over any other type of resource */ j += datalength; } } } if (ttl_r == 0xffffffff) ttl_r = 0; reply_handle(req, flags, ttl_r, &reply, isudp); return 0; err: if (req) reply_handle(req, flags, 0, NULL, isudp); return -1; } /* Parse a raw request (packet,length) sent to a nameserver port (port) from */ /* a DNS client (addr,addrlen), and if it's well-formed, call the corresponding */ /* callback. */ static int request_parse(u8 *packet, int length, struct evdns_server_port *port, struct sockaddr *addr, ev_socklen_t addrlen) { int j = 0; /* index into packet */ u16 _t; /* used by the macros */ char tmp_name[256]; /* used by the macros */ int i; u16 trans_id, flags, questions, answers, authority, additional; struct server_request *server_req = NULL; ASSERT_LOCKED(port); /* Get the header fields */ GET16(trans_id); GET16(flags); GET16(questions); GET16(answers); GET16(authority); GET16(additional); (void)answers; (void)additional; (void)authority; if (flags & 0x8000) return -1; /* Must not be an answer. */ flags &= 0x0110; /* Only RD and CD get preserved. */ server_req = mm_malloc(sizeof(struct server_request)); if (server_req == NULL) return -1; memset(server_req, 0, sizeof(struct server_request)); server_req->trans_id = trans_id; memcpy(&server_req->addr, addr, addrlen); server_req->addrlen = addrlen; server_req->base.flags = flags; server_req->base.nquestions = 0; server_req->base.questions = mm_calloc(sizeof(struct evdns_server_question *), questions); if (server_req->base.questions == NULL) goto err; for (i = 0; i < questions; ++i) { u16 type, class; struct evdns_server_question *q; int namelen; if (name_parse(packet, length, &j, tmp_name, sizeof(tmp_name))<0) goto err; GET16(type); GET16(class); namelen = (int)strlen(tmp_name); q = mm_malloc(sizeof(struct evdns_server_question) + namelen); if (!q) goto err; q->type = type; q->dns_question_class = class; memcpy(q->name, tmp_name, namelen+1); server_req->base.questions[server_req->base.nquestions++] = q; } /* Ignore answers, authority, and additional. */ server_req->port = port; port->refcnt++; /* Only standard queries are supported. */ if (flags & 0x7800) { evdns_server_request_respond(&(server_req->base), DNS_ERR_NOTIMPL); return -1; } port->user_callback(&(server_req->base), port->user_data); return 0; err: if (server_req) { if (server_req->base.questions) { for (i = 0; i < server_req->base.nquestions; ++i) mm_free(server_req->base.questions[i]); mm_free(server_req->base.questions); } mm_free(server_req); } return -1; #undef SKIP_NAME #undef GET32 #undef GET16 #undef GET8 } static int (*rand_init_function)(void) = evutil_secure_rng_init; static void (*rand_bytes_function)(void *buf, size_t n) = evutil_secure_rng_get_bytes; void evdns_set_transaction_id_fn(ev_uint16_t (*fn)(void)) { } void evdns_set_random_init_fn(int (*fn)(void)) { rand_init_function = fn; } void evdns_set_random_bytes_fn(void (*fn)(void *, size_t)) { rand_bytes_function = fn; } /* Try to choose a strong transaction id which isn't already in flight */ static u16 transaction_id_pick(struct evdns_base *base) { ASSERT_LOCKED(base); for (;;) { u16 trans_id; rand_bytes_function(&trans_id, sizeof(trans_id)); if (trans_id == 0xffff) continue; /* now check to see if that id is already inflight */ if (request_find_from_trans_id(base, trans_id) == NULL) return trans_id; } } /* choose a namesever to use. This function will try to ignore */ /* nameservers which we think are down and load balance across the rest */ /* by updating the server_head global each time. */ static struct nameserver * nameserver_pick(struct evdns_base *base) { struct nameserver *started_at = base->server_head, *picked; ASSERT_LOCKED(base); if (!base->server_head) return NULL; /* if we don't have any good nameservers then there's no */ /* point in trying to find one. */ if (!base->global_good_nameservers) { base->server_head = base->server_head->next; return base->server_head; } /* remember that nameservers are in a circular list */ for (;;) { if (base->server_head->state) { /* we think this server is currently good */ picked = base->server_head; base->server_head = base->server_head->next; return picked; } base->server_head = base->server_head->next; if (base->server_head == started_at) { /* all the nameservers seem to be down */ /* so we just return this one and hope for the */ /* best */ EVUTIL_ASSERT(base->global_good_nameservers == 0); picked = base->server_head; base->server_head = base->server_head->next; return picked; } } } /* this is called when a namesever socket is ready for reading */ static void nameserver_read(struct nameserver *ns) { struct sockaddr_storage ss; ev_socklen_t addrlen = sizeof(ss); u8 packet[1500]; char addrbuf[128]; ASSERT_LOCKED(ns->base); for (;;) { const int r = recvfrom(ns->socket, (void*)packet, sizeof(packet), 0, (struct sockaddr*)&ss, &addrlen); if (r < 0) { int err = evutil_socket_geterror(ns->socket); if (EVUTIL_ERR_RW_RETRIABLE(err)) return; nameserver_failed(ns, evutil_socket_error_to_string(err)); return; } if (evutil_sockaddr_cmp((struct sockaddr*)&ss, (struct sockaddr*)&ns->address, 0)) { log(EVDNS_LOG_WARN, "Address mismatch on received " "DNS packet. Apparent source was %s", evutil_format_sockaddr_port( (struct sockaddr *)&ss, addrbuf, sizeof(addrbuf))); return; } ns->timedout = 0; reply_parse(ns->base, packet, r, 1); } } /* Read a packet from a DNS client on a server port s, parse it, and */ /* act accordingly. */ static void server_port_read(struct evdns_server_port *s) { u8 packet[1500]; struct sockaddr_storage addr; ev_socklen_t addrlen; int r; ASSERT_LOCKED(s); for (;;) { addrlen = sizeof(struct sockaddr_storage); r = recvfrom(s->socket, (void*)packet, sizeof(packet), 0, (struct sockaddr*) &addr, &addrlen); if (r < 0) { int err = evutil_socket_geterror(s->socket); if (EVUTIL_ERR_RW_RETRIABLE(err)) return; log(EVDNS_LOG_WARN, "Error %s (%d) while reading request.", evutil_socket_error_to_string(err), err); return; } request_parse(packet, r, s, (struct sockaddr*) &addr, addrlen); } } /* Try to write all pending replies on a given DNS server port. */ static void server_port_flush(struct evdns_server_port *port) { struct server_request *req = port->pending_replies; ASSERT_LOCKED(port); while (req) { int r = sendto(port->socket, req->response, (int)req->response_len, 0, (struct sockaddr*) &req->addr, (ev_socklen_t)req->addrlen); if (r < 0) { int err = evutil_socket_geterror(port->socket); if (EVUTIL_ERR_RW_RETRIABLE(err)) return; log(EVDNS_LOG_WARN, "Error %s (%d) while writing response to port; dropping", evutil_socket_error_to_string(err), err); } if (server_request_free(req)) { /* we released the last reference to req->port. */ return; } else { EVUTIL_ASSERT(req != port->pending_replies); req = port->pending_replies; } } /* We have no more pending requests; stop listening for 'writeable' events. */ (void) event_del(&port->event); event_assign(&port->event, port->event_base, port->socket, EV_READ | EV_PERSIST, server_port_ready_callback, port); if (event_add(&port->event, NULL) < 0) { log(EVDNS_LOG_WARN, "Error from libevent when adding event for DNS server."); /* ???? Do more? */ } } /* set if we are waiting for the ability to write to this server. */ /* if waiting is true then we ask libevent for EV_WRITE events, otherwise */ /* we stop these events. */ static void nameserver_write_waiting(struct nameserver *ns, char waiting) { ASSERT_LOCKED(ns->base); if (ns->write_waiting == waiting) return; ns->write_waiting = waiting; (void) event_del(&ns->event); event_assign(&ns->event, ns->base->event_base, ns->socket, EV_READ | (waiting ? EV_WRITE : 0) | EV_PERSIST, nameserver_ready_callback, ns); if (event_add(&ns->event, NULL) < 0) { char addrbuf[128]; log(EVDNS_LOG_WARN, "Error from libevent when adding event for %s", evutil_format_sockaddr_port( (struct sockaddr *)&ns->address, addrbuf, sizeof(addrbuf))); /* ???? Do more? */ } } /* a callback function. Called by libevent when the kernel says that */ /* a nameserver socket is ready for writing or reading */ static void nameserver_ready_callback(evutil_socket_t fd, short events, void *arg) { struct nameserver *ns = (struct nameserver *) arg; (void)fd; EVDNS_LOCK(ns->base); if (events & EV_WRITE) { ns->choked = 0; if (!evdns_transmit(ns->base)) { nameserver_write_waiting(ns, 0); } } if (events & EV_READ) { nameserver_read(ns); } EVDNS_UNLOCK(ns->base); } /* a callback function. Called by libevent when the kernel says that */ /* a server socket is ready for writing or reading. */ static void server_port_ready_callback(evutil_socket_t fd, short events, void *arg) { struct evdns_server_port *port = (struct evdns_server_port *) arg; (void) fd; EVDNS_LOCK(port); if (events & EV_WRITE) { port->choked = 0; server_port_flush(port); } if (events & EV_READ) { server_port_read(port); } EVDNS_UNLOCK(port); } /* This is an inefficient representation; only use it via the dnslabel_table_* * functions, so that is can be safely replaced with something smarter later. */ #define MAX_LABELS 128 /* Structures used to implement name compression */ struct dnslabel_entry { char *v; off_t pos; }; struct dnslabel_table { int n_labels; /* number of current entries */ /* map from name to position in message */ struct dnslabel_entry labels[MAX_LABELS]; }; /* Initialize dnslabel_table. */ static void dnslabel_table_init(struct dnslabel_table *table) { table->n_labels = 0; } /* Free all storage held by table, but not the table itself. */ static void dnslabel_clear(struct dnslabel_table *table) { int i; for (i = 0; i < table->n_labels; ++i) mm_free(table->labels[i].v); table->n_labels = 0; } /* return the position of the label in the current message, or -1 if the label */ /* hasn't been used yet. */ static int dnslabel_table_get_pos(const struct dnslabel_table *table, const char *label) { int i; for (i = 0; i < table->n_labels; ++i) { if (!strcmp(label, table->labels[i].v)) return table->labels[i].pos; } return -1; } /* remember that we've used the label at position pos */ static int dnslabel_table_add(struct dnslabel_table *table, const char *label, off_t pos) { char *v; int p; if (table->n_labels == MAX_LABELS) return (-1); v = mm_strdup(label); if (v == NULL) return (-1); p = table->n_labels++; table->labels[p].v = v; table->labels[p].pos = pos; return (0); } /* Converts a string to a length-prefixed set of DNS labels, starting */ /* at buf[j]. name and buf must not overlap. name_len should be the length */ /* of name. table is optional, and is used for compression. */ /* */ /* Input: abc.def */ /* Output: <3>abc<3>def<0> */ /* */ /* Returns the first index after the encoded name, or negative on error. */ /* -1 label was > 63 bytes */ /* -2 name too long to fit in buffer. */ /* */ static off_t dnsname_to_labels(u8 *const buf, size_t buf_len, off_t j, const char *name, const size_t name_len, struct dnslabel_table *table) { const char *end = name + name_len; int ref = 0; u16 _t; #define APPEND16(x) do { \ if (j + 2 > (off_t)buf_len) \ goto overflow; \ _t = htons(x); \ memcpy(buf + j, &_t, 2); \ j += 2; \ } while (0) #define APPEND32(x) do { \ if (j + 4 > (off_t)buf_len) \ goto overflow; \ _t32 = htonl(x); \ memcpy(buf + j, &_t32, 4); \ j += 4; \ } while (0) if (name_len > 255) return -2; for (;;) { const char *const start = name; if (table && (ref = dnslabel_table_get_pos(table, name)) >= 0) { APPEND16(ref | 0xc000); return j; } name = strchr(name, '.'); if (!name) { const size_t label_len = end - start; if (label_len > 63) return -1; if ((size_t)(j+label_len+1) > buf_len) return -2; if (table) dnslabel_table_add(table, start, j); buf[j++] = (ev_uint8_t)label_len; memcpy(buf + j, start, label_len); j += (int) label_len; break; } else { /* append length of the label. */ const size_t label_len = name - start; if (label_len > 63) return -1; if ((size_t)(j+label_len+1) > buf_len) return -2; if (table) dnslabel_table_add(table, start, j); buf[j++] = (ev_uint8_t)label_len; memcpy(buf + j, start, label_len); j += (int) label_len; /* hop over the '.' */ name++; } } /* the labels must be terminated by a 0. */ /* It's possible that the name ended in a . */ /* in which case the zero is already there */ if (!j || buf[j-1]) buf[j++] = 0; return j; overflow: return (-2); } /* Finds the length of a dns request for a DNS name of the given */ /* length. The actual request may be smaller than the value returned */ /* here */ static size_t evdns_request_len(const size_t name_len) { return 96 + /* length of the DNS standard header */ name_len + 2 + 4; /* space for the resource type */ } /* build a dns request packet into buf. buf should be at least as long */ /* as evdns_request_len told you it should be. */ /* */ /* Returns the amount of space used. Negative on error. */ static int evdns_request_data_build(const char *const name, const size_t name_len, const u16 trans_id, const u16 type, const u16 class, u8 *const buf, size_t buf_len) { off_t j = 0; /* current offset into buf */ u16 _t; /* used by the macros */ APPEND16(trans_id); APPEND16(0x0100); /* standard query, recusion needed */ APPEND16(1); /* one question */ APPEND16(0); /* no answers */ APPEND16(0); /* no authority */ APPEND16(0); /* no additional */ j = dnsname_to_labels(buf, buf_len, j, name, name_len, NULL); if (j < 0) { return (int)j; } APPEND16(type); APPEND16(class); return (int)j; overflow: return (-1); } /* exported function */ struct evdns_server_port * evdns_add_server_port_with_base(struct event_base *base, evutil_socket_t socket, int flags, evdns_request_callback_fn_type cb, void *user_data) { struct evdns_server_port *port; if (flags) return NULL; /* flags not yet implemented */ if (!(port = mm_malloc(sizeof(struct evdns_server_port)))) return NULL; memset(port, 0, sizeof(struct evdns_server_port)); port->socket = socket; port->refcnt = 1; port->choked = 0; port->closing = 0; port->user_callback = cb; port->user_data = user_data; port->pending_replies = NULL; port->event_base = base; event_assign(&port->event, port->event_base, port->socket, EV_READ | EV_PERSIST, server_port_ready_callback, port); if (event_add(&port->event, NULL) < 0) { mm_free(port); return NULL; } EVTHREAD_ALLOC_LOCK(port->lock, EVTHREAD_LOCKTYPE_RECURSIVE); return port; } struct evdns_server_port * evdns_add_server_port(evutil_socket_t socket, int flags, evdns_request_callback_fn_type cb, void *user_data) { return evdns_add_server_port_with_base(NULL, socket, flags, cb, user_data); } /* exported function */ void evdns_close_server_port(struct evdns_server_port *port) { EVDNS_LOCK(port); if (--port->refcnt == 0) { EVDNS_UNLOCK(port); server_port_free(port); } else { port->closing = 1; } } /* exported function */ int evdns_server_request_add_reply(struct evdns_server_request *_req, int section, const char *name, int type, int class, int ttl, int datalen, int is_name, const char *data) { struct server_request *req = TO_SERVER_REQUEST(_req); struct server_reply_item **itemp, *item; int *countp; int result = -1; EVDNS_LOCK(req->port); if (req->response) /* have we already answered? */ goto done; switch (section) { case EVDNS_ANSWER_SECTION: itemp = &req->answer; countp = &req->n_answer; break; case EVDNS_AUTHORITY_SECTION: itemp = &req->authority; countp = &req->n_authority; break; case EVDNS_ADDITIONAL_SECTION: itemp = &req->additional; countp = &req->n_additional; break; default: goto done; } while (*itemp) { itemp = &((*itemp)->next); } item = mm_malloc(sizeof(struct server_reply_item)); if (!item) goto done; item->next = NULL; if (!(item->name = mm_strdup(name))) { mm_free(item); goto done; } item->type = type; item->dns_question_class = class; item->ttl = ttl; item->is_name = is_name != 0; item->datalen = 0; item->data = NULL; if (data) { if (item->is_name) { if (!(item->data = mm_strdup(data))) { mm_free(item->name); mm_free(item); goto done; } item->datalen = (u16)-1; } else { if (!(item->data = mm_malloc(datalen))) { mm_free(item->name); mm_free(item); goto done; } item->datalen = datalen; memcpy(item->data, data, datalen); } } *itemp = item; ++(*countp); result = 0; done: EVDNS_UNLOCK(req->port); return result; } /* exported function */ int evdns_server_request_add_a_reply(struct evdns_server_request *req, const char *name, int n, const void *addrs, int ttl) { return evdns_server_request_add_reply( req, EVDNS_ANSWER_SECTION, name, TYPE_A, CLASS_INET, ttl, n*4, 0, addrs); } /* exported function */ int evdns_server_request_add_aaaa_reply(struct evdns_server_request *req, const char *name, int n, const void *addrs, int ttl) { return evdns_server_request_add_reply( req, EVDNS_ANSWER_SECTION, name, TYPE_AAAA, CLASS_INET, ttl, n*16, 0, addrs); } /* exported function */ int evdns_server_request_add_ptr_reply(struct evdns_server_request *req, struct in_addr *in, const char *inaddr_name, const char *hostname, int ttl) { u32 a; char buf[32]; if (in && inaddr_name) return -1; else if (!in && !inaddr_name) return -1; if (in) { a = ntohl(in->s_addr); evutil_snprintf(buf, sizeof(buf), "%d.%d.%d.%d.in-addr.arpa", (int)(u8)((a )&0xff), (int)(u8)((a>>8 )&0xff), (int)(u8)((a>>16)&0xff), (int)(u8)((a>>24)&0xff)); inaddr_name = buf; } return evdns_server_request_add_reply( req, EVDNS_ANSWER_SECTION, inaddr_name, TYPE_PTR, CLASS_INET, ttl, -1, 1, hostname); } /* exported function */ int evdns_server_request_add_cname_reply(struct evdns_server_request *req, const char *name, const char *cname, int ttl) { return evdns_server_request_add_reply( req, EVDNS_ANSWER_SECTION, name, TYPE_CNAME, CLASS_INET, ttl, -1, 1, cname); } /* exported function */ void evdns_server_request_set_flags(struct evdns_server_request *exreq, int flags) { struct server_request *req = TO_SERVER_REQUEST(exreq); req->base.flags &= ~(EVDNS_FLAGS_AA|EVDNS_FLAGS_RD); req->base.flags |= flags; } static int evdns_server_request_format_response(struct server_request *req, int err) { unsigned char buf[1500]; size_t buf_len = sizeof(buf); off_t j = 0, r; u16 _t; u32 _t32; int i; u16 flags; struct dnslabel_table table; if (err < 0 || err > 15) return -1; /* Set response bit and error code; copy OPCODE and RD fields from * question; copy RA and AA if set by caller. */ flags = req->base.flags; flags |= (0x8000 | err); dnslabel_table_init(&table); APPEND16(req->trans_id); APPEND16(flags); APPEND16(req->base.nquestions); APPEND16(req->n_answer); APPEND16(req->n_authority); APPEND16(req->n_additional); /* Add questions. */ for (i=0; i < req->base.nquestions; ++i) { const char *s = req->base.questions[i]->name; j = dnsname_to_labels(buf, buf_len, j, s, strlen(s), &table); if (j < 0) { dnslabel_clear(&table); return (int) j; } APPEND16(req->base.questions[i]->type); APPEND16(req->base.questions[i]->dns_question_class); } /* Add answer, authority, and additional sections. */ for (i=0; i<3; ++i) { struct server_reply_item *item; if (i==0) item = req->answer; else if (i==1) item = req->authority; else item = req->additional; while (item) { r = dnsname_to_labels(buf, buf_len, j, item->name, strlen(item->name), &table); if (r < 0) goto overflow; j = r; APPEND16(item->type); APPEND16(item->dns_question_class); APPEND32(item->ttl); if (item->is_name) { off_t len_idx = j, name_start; j += 2; name_start = j; r = dnsname_to_labels(buf, buf_len, j, item->data, strlen(item->data), &table); if (r < 0) goto overflow; j = r; _t = htons( (short) (j-name_start) ); memcpy(buf+len_idx, &_t, 2); } else { APPEND16(item->datalen); if (j+item->datalen > (off_t)buf_len) goto overflow; memcpy(buf+j, item->data, item->datalen); j += item->datalen; } item = item->next; } } if (j > 512) { overflow: j = 512; buf[2] |= 0x02; /* set the truncated bit. */ } req->response_len = j; if (!(req->response = mm_malloc(req->response_len))) { server_request_free_answers(req); dnslabel_clear(&table); return (-1); } memcpy(req->response, buf, req->response_len); server_request_free_answers(req); dnslabel_clear(&table); return (0); } /* exported function */ int evdns_server_request_respond(struct evdns_server_request *_req, int err) { struct server_request *req = TO_SERVER_REQUEST(_req); struct evdns_server_port *port = req->port; int r = -1; EVDNS_LOCK(port); if (!req->response) { if ((r = evdns_server_request_format_response(req, err))<0) goto done; } r = sendto(port->socket, req->response, (int)req->response_len, 0, (struct sockaddr*) &req->addr, (ev_socklen_t)req->addrlen); if (r<0) { int sock_err = evutil_socket_geterror(port->socket); if (EVUTIL_ERR_RW_RETRIABLE(sock_err)) goto done; if (port->pending_replies) { req->prev_pending = port->pending_replies->prev_pending; req->next_pending = port->pending_replies; req->prev_pending->next_pending = req->next_pending->prev_pending = req; } else { req->prev_pending = req->next_pending = req; port->pending_replies = req; port->choked = 1; (void) event_del(&port->event); event_assign(&port->event, port->event_base, port->socket, (port->closing?0:EV_READ) | EV_WRITE | EV_PERSIST, server_port_ready_callback, port); if (event_add(&port->event, NULL) < 0) { log(EVDNS_LOG_WARN, "Error from libevent when adding event for DNS server"); } } r = 1; goto done; } if (server_request_free(req)) { r = 0; goto done; } if (port->pending_replies) server_port_flush(port); r = 0; done: EVDNS_UNLOCK(port); return r; } /* Free all storage held by RRs in req. */ static void server_request_free_answers(struct server_request *req) { struct server_reply_item *victim, *next, **list; int i; for (i = 0; i < 3; ++i) { if (i==0) list = &req->answer; else if (i==1) list = &req->authority; else list = &req->additional; victim = *list; while (victim) { next = victim->next; mm_free(victim->name); if (victim->data) mm_free(victim->data); mm_free(victim); victim = next; } *list = NULL; } } /* Free all storage held by req, and remove links to it. */ /* return true iff we just wound up freeing the server_port. */ static int server_request_free(struct server_request *req) { int i, rc=1, lock=0; if (req->base.questions) { for (i = 0; i < req->base.nquestions; ++i) mm_free(req->base.questions[i]); mm_free(req->base.questions); } if (req->port) { EVDNS_LOCK(req->port); lock=1; if (req->port->pending_replies == req) { if (req->next_pending && req->next_pending != req) req->port->pending_replies = req->next_pending; else req->port->pending_replies = NULL; } rc = --req->port->refcnt; } if (req->response) { mm_free(req->response); } server_request_free_answers(req); if (req->next_pending && req->next_pending != req) { req->next_pending->prev_pending = req->prev_pending; req->prev_pending->next_pending = req->next_pending; } if (rc == 0) { EVDNS_UNLOCK(req->port); /* ????? nickm */ server_port_free(req->port); mm_free(req); return (1); } if (lock) EVDNS_UNLOCK(req->port); mm_free(req); return (0); } /* Free all storage held by an evdns_server_port. Only called when */ static void server_port_free(struct evdns_server_port *port) { EVUTIL_ASSERT(port); EVUTIL_ASSERT(!port->refcnt); EVUTIL_ASSERT(!port->pending_replies); if (port->socket > 0) { evutil_closesocket(port->socket); port->socket = -1; } (void) event_del(&port->event); event_debug_unassign(&port->event); EVTHREAD_FREE_LOCK(port->lock, EVTHREAD_LOCKTYPE_RECURSIVE); mm_free(port); } /* exported function */ int evdns_server_request_drop(struct evdns_server_request *_req) { struct server_request *req = TO_SERVER_REQUEST(_req); server_request_free(req); return 0; } /* exported function */ int evdns_server_request_get_requesting_addr(struct evdns_server_request *_req, struct sockaddr *sa, int addr_len) { struct server_request *req = TO_SERVER_REQUEST(_req); if (addr_len < (int)req->addrlen) return -1; memcpy(sa, &(req->addr), req->addrlen); return req->addrlen; } #undef APPEND16 #undef APPEND32 /* this is a libevent callback function which is called when a request */ /* has timed out. */ static void evdns_request_timeout_callback(evutil_socket_t fd, short events, void *arg) { struct request *const req = (struct request *) arg; struct evdns_base *base = req->base; (void) fd; (void) events; log(EVDNS_LOG_DEBUG, "Request %p timed out", arg); EVDNS_LOCK(base); req->ns->timedout++; if (req->ns->timedout > req->base->global_max_nameserver_timeout) { req->ns->timedout = 0; nameserver_failed(req->ns, "request timed out."); } if (req->tx_count >= req->base->global_max_retransmits) { /* this request has failed */ log(EVDNS_LOG_DEBUG, "Giving up on request %p; tx_count==%d", arg, req->tx_count); reply_schedule_callback(req, 0, DNS_ERR_TIMEOUT, NULL); request_finished(req, &REQ_HEAD(req->base, req->trans_id), 1); } else { /* retransmit it */ struct nameserver *new_ns; log(EVDNS_LOG_DEBUG, "Retransmitting request %p; tx_count==%d", arg, req->tx_count); (void) evtimer_del(&req->timeout_event); new_ns = nameserver_pick(base); if (new_ns) req->ns = new_ns; evdns_request_transmit(req); } EVDNS_UNLOCK(base); } /* try to send a request to a given server. */ /* */ /* return: */ /* 0 ok */ /* 1 temporary failure */ /* 2 other failure */ static int evdns_request_transmit_to(struct request *req, struct nameserver *server) { int r; ASSERT_LOCKED(req->base); ASSERT_VALID_REQUEST(req); r = sendto(server->socket, (void*)req->request, req->request_len, 0, (struct sockaddr *)&server->address, server->addrlen); if (r < 0) { int err = evutil_socket_geterror(server->socket); if (EVUTIL_ERR_RW_RETRIABLE(err)) return 1; nameserver_failed(req->ns, evutil_socket_error_to_string(err)); return 2; } else if (r != (int)req->request_len) { return 1; /* short write */ } else { return 0; } } /* try to send a request, updating the fields of the request */ /* as needed */ /* */ /* return: */ /* 0 ok */ /* 1 failed */ static int evdns_request_transmit(struct request *req) { int retcode = 0, r; ASSERT_LOCKED(req->base); ASSERT_VALID_REQUEST(req); /* if we fail to send this packet then this flag marks it */ /* for evdns_transmit */ req->transmit_me = 1; EVUTIL_ASSERT(req->trans_id != 0xffff); if (!req->ns) { /* unable to transmit request if no nameservers */ return 1; } if (req->ns->choked) { /* don't bother trying to write to a socket */ /* which we have had EAGAIN from */ return 1; } if (req->base->global_use_tcp == 3) { r = evdns_request_transmit_to_tcp(req, req->ns); } else { r = evdns_request_transmit_to(req, req->ns); } switch (r) { case 1: /* temp failure */ req->ns->choked = 1; nameserver_write_waiting(req->ns, 1); return 1; case 2: /* failed to transmit the request entirely. */ retcode = 1; /* fall through: we'll set a timeout, which will time out, * and make us retransmit the request anyway. */ default: /* all ok */ log(EVDNS_LOG_DEBUG, "Setting timeout for request %p, sent to nameserver %p", req, req->ns); if (evtimer_add(&req->timeout_event, &req->base->global_timeout) < 0) { log(EVDNS_LOG_WARN, "Error from libevent when adding timer for request %p", req); /* ???? Do more? */ } req->tx_count++; req->transmit_me = 0; return retcode; } } static void nameserver_probe_callback(int result, char type, int count, int ttl, void *addresses, void *arg) { struct nameserver *const ns = (struct nameserver *) arg; (void) type; (void) count; (void) ttl; (void) addresses; if (result == DNS_ERR_CANCEL) { /* We canceled this request because the nameserver came up * for some other reason. Do not change our opinion about * the nameserver. */ return; } EVDNS_LOCK(ns->base); ns->probe_request = NULL; if (result == DNS_ERR_NONE || result == DNS_ERR_NOTEXIST) { /* this is a good reply */ nameserver_up(ns); } else { nameserver_probe_failed(ns); } EVDNS_UNLOCK(ns->base); } static void nameserver_send_probe(struct nameserver *const ns) { struct evdns_request *handle; struct request *req; char addrbuf[128]; /* here we need to send a probe to a given nameserver */ /* in the hope that it is up now. */ ASSERT_LOCKED(ns->base); log(EVDNS_LOG_DEBUG, "Sending probe to %s", evutil_format_sockaddr_port( (struct sockaddr *)&ns->address, addrbuf, sizeof(addrbuf))); handle = mm_calloc(1, sizeof(*handle)); if (!handle) return; req = request_new(ns->base, handle, TYPE_A, "google.com", DNS_QUERY_NO_SEARCH, nameserver_probe_callback, ns); if (!req) { mm_free(handle); return; } ns->probe_request = handle; /* we force this into the inflight queue no matter what */ request_trans_id_set(req, transaction_id_pick(ns->base)); req->ns = ns; request_submit(req); } /* returns: */ /* 0 didn't try to transmit anything */ /* 1 tried to transmit something */ static int evdns_transmit(struct evdns_base *base) { char did_try_to_transmit = 0; int i; ASSERT_LOCKED(base); for (i = 0; i < base->n_req_heads; ++i) { if (base->req_heads[i]) { struct request *const started_at = base->req_heads[i], *req = started_at; /* first transmit all the requests which are currently waiting */ do { if (req->transmit_me) { did_try_to_transmit = 1; evdns_request_transmit(req); } req = req->next; } while (req != started_at); } } return did_try_to_transmit; } /* exported function */ int evdns_base_count_nameservers(struct evdns_base *base) { const struct nameserver *server; int n = 0; EVDNS_LOCK(base); server = base->server_head; if (!server) goto done; do { ++n; server = server->next; } while (server != base->server_head); done: EVDNS_UNLOCK(base); return n; } int evdns_count_nameservers(void) { return evdns_base_count_nameservers(current_base); } /* exported function */ int evdns_base_clear_nameservers_and_suspend(struct evdns_base *base) { struct nameserver *server, *started_at; int i; EVDNS_LOCK(base); server = base->server_head; started_at = base->server_head; if (!server) { EVDNS_UNLOCK(base); return 0; } while (1) { struct nameserver *next = server->next; (void) event_del(&server->event); if (evtimer_initialized(&server->timeout_event)) (void) evtimer_del(&server->timeout_event); if (server->probe_request) { evdns_cancel_request(server->base, server->probe_request); server->probe_request = NULL; } if (server->socket >= 0) evutil_closesocket(server->socket); mm_free(server); if (next == started_at) break; server = next; } base->server_head = NULL; base->global_good_nameservers = 0; for (i = 0; i < base->n_req_heads; ++i) { struct request *req, *req_started_at; req = req_started_at = base->req_heads[i]; while (req) { struct request *next = req->next; req->tx_count = req->reissue_count = 0; req->ns = NULL; /* ???? What to do about searches? */ (void) evtimer_del(&req->timeout_event); req->trans_id = 0; req->transmit_me = 0; base->global_requests_waiting++; evdns_request_insert(req, &base->req_waiting_head); /* We want to insert these suspended elements at the front of * the waiting queue, since they were pending before any of * the waiting entries were added. This is a circular list, * so we can just shift the start back by one.*/ base->req_waiting_head = base->req_waiting_head->prev; if (next == req_started_at) break; req = next; } base->req_heads[i] = NULL; } base->global_requests_inflight = 0; EVDNS_UNLOCK(base); return 0; } int evdns_clear_nameservers_and_suspend(void) { return evdns_base_clear_nameservers_and_suspend(current_base); } /* exported function */ int evdns_base_resume(struct evdns_base *base) { EVDNS_LOCK(base); evdns_requests_pump_waiting_queue(base); EVDNS_UNLOCK(base); return 0; } int evdns_resume(void) { return evdns_base_resume(current_base); } static int _evdns_nameserver_add_impl(struct evdns_base *base, const struct sockaddr *address, int addrlen) { /* first check to see if we already have this nameserver */ const struct nameserver *server = base->server_head, *const started_at = base->server_head; struct nameserver *ns; int err = 0; char addrbuf[128]; ASSERT_LOCKED(base); if (server) { do { if (!evutil_sockaddr_cmp((struct sockaddr*)&server->address, address, 1)) return 3; server = server->next; } while (server != started_at); } if (addrlen > (int)sizeof(ns->address)) { log(EVDNS_LOG_DEBUG, "Addrlen %d too long.", (int)addrlen); return 2; } ns = (struct nameserver *) mm_malloc(sizeof(struct nameserver)); if (!ns) return -1; memset(ns, 0, sizeof(struct nameserver)); ns->base = base; evtimer_assign(&ns->timeout_event, ns->base->event_base, nameserver_prod_callback, ns); ns->socket = socket(address->sa_family, SOCK_DGRAM, 0); if (ns->socket < 0) { err = 1; goto out1; } evutil_make_socket_closeonexec(ns->socket); evutil_make_socket_nonblocking(ns->socket); if (base->global_outgoing_addrlen && !evutil_sockaddr_is_loopback(address)) { if (bind(ns->socket, (struct sockaddr*)&base->global_outgoing_address, base->global_outgoing_addrlen) < 0) { log(EVDNS_LOG_WARN,"Couldn't bind to outgoing address"); err = 2; goto out2; } } memcpy(&ns->address, address, addrlen); ns->addrlen = addrlen; ns->state = 1; event_assign(&ns->event, ns->base->event_base, ns->socket, EV_READ | EV_PERSIST, nameserver_ready_callback, ns); if (event_add(&ns->event, NULL) < 0) { err = 2; goto out2; } log(EVDNS_LOG_DEBUG, "Added nameserver %s as %p", evutil_format_sockaddr_port(address, addrbuf, sizeof(addrbuf)), ns); /* insert this nameserver into the list of them */ if (!base->server_head) { ns->next = ns->prev = ns; base->server_head = ns; } else { ns->next = base->server_head->next; ns->prev = base->server_head; base->server_head->next = ns; ns->next->prev = ns; } base->global_good_nameservers++; return 0; out2: evutil_closesocket(ns->socket); out1: event_debug_unassign(&ns->event); mm_free(ns); log(EVDNS_LOG_WARN, "Unable to add nameserver %s: error %d", evutil_format_sockaddr_port(address, addrbuf, sizeof(addrbuf)), err); return err; } /* exported function */ int evdns_base_nameserver_add(struct evdns_base *base, unsigned long int address) { struct sockaddr_in sin; int res; memset(&sin, 0, sizeof(sin)); sin.sin_addr.s_addr = address; sin.sin_port = htons(53); sin.sin_family = AF_INET; EVDNS_LOCK(base); res = _evdns_nameserver_add_impl(base, (struct sockaddr*)&sin, sizeof(sin)); EVDNS_UNLOCK(base); return res; } int evdns_nameserver_add(unsigned long int address) { if (!current_base) current_base = evdns_base_new(NULL, 0); return evdns_base_nameserver_add(current_base, address); } static void sockaddr_setport(struct sockaddr *sa, ev_uint16_t port) { if (sa->sa_family == AF_INET) { ((struct sockaddr_in *)sa)->sin_port = htons(port); } else if (sa->sa_family == AF_INET6) { ((struct sockaddr_in6 *)sa)->sin6_port = htons(port); } } static ev_uint16_t sockaddr_getport(struct sockaddr *sa) { if (sa->sa_family == AF_INET) { return ntohs(((struct sockaddr_in *)sa)->sin_port); } else if (sa->sa_family == AF_INET6) { return ntohs(((struct sockaddr_in6 *)sa)->sin6_port); } else { return 0; } } /* exported function */ int evdns_base_nameserver_ip_add(struct evdns_base *base, const char *ip_as_string) { struct sockaddr_storage ss; struct sockaddr *sa; int len = sizeof(ss); int res; if (evutil_parse_sockaddr_port(ip_as_string, (struct sockaddr *)&ss, &len)) { log(EVDNS_LOG_WARN, "Unable to parse nameserver address %s", ip_as_string); return 4; } sa = (struct sockaddr *) &ss; if (sockaddr_getport(sa) == 0) sockaddr_setport(sa, 53); EVDNS_LOCK(base); res = _evdns_nameserver_add_impl(base, sa, len); EVDNS_UNLOCK(base); return res; } int evdns_nameserver_ip_add(const char *ip_as_string) { if (!current_base) current_base = evdns_base_new(NULL, 0); return evdns_base_nameserver_ip_add(current_base, ip_as_string); } int evdns_base_nameserver_sockaddr_add(struct evdns_base *base, const struct sockaddr *sa, ev_socklen_t len, unsigned flags) { int res; EVUTIL_ASSERT(base); EVDNS_LOCK(base); res = _evdns_nameserver_add_impl(base, sa, len); EVDNS_UNLOCK(base); return res; } /* remove from the queue */ static void evdns_request_remove(struct request *req, struct request **head) { ASSERT_LOCKED(req->base); ASSERT_VALID_REQUEST(req); #if 0 { struct request *ptr; int found = 0; EVUTIL_ASSERT(*head != NULL); ptr = *head; do { if (ptr == req) { found = 1; break; } ptr = ptr->next; } while (ptr != *head); EVUTIL_ASSERT(found); EVUTIL_ASSERT(req->next); } #endif if (req->next == req) { /* only item in the list */ *head = NULL; } else { req->next->prev = req->prev; req->prev->next = req->next; if (*head == req) *head = req->next; } req->next = req->prev = NULL; } /* insert into the tail of the queue */ static void evdns_request_insert(struct request *req, struct request **head) { ASSERT_LOCKED(req->base); ASSERT_VALID_REQUEST(req); if (!*head) { *head = req; req->next = req->prev = req; return; } req->prev = (*head)->prev; req->prev->next = req; req->next = *head; (*head)->prev = req; } static int string_num_dots(const char *s) { int count = 0; while ((s = strchr(s, '.'))) { s++; count++; } return count; } static struct request * request_new(struct evdns_base *base, struct evdns_request *handle, int type, const char *name, int flags, evdns_callback_type callback, void *user_ptr) { const char issuing_now = (base->global_requests_inflight < base->global_max_requests_inflight) ? 1 : 0; const size_t name_len = strlen(name); const size_t request_max_len = evdns_request_len(name_len); const u16 trans_id = issuing_now ? transaction_id_pick(base) : 0xffff; /* the request data is alloced in a single block with the header */ struct request *const req = mm_malloc(sizeof(struct request) + request_max_len); int rlen; char namebuf[256]; (void) flags; ASSERT_LOCKED(base); if (!req) return NULL; if (name_len >= sizeof(namebuf)) { mm_free(req); return NULL; } memset(req, 0, sizeof(struct request)); req->base = base; evtimer_assign(&req->timeout_event, req->base->event_base, evdns_request_timeout_callback, req); if (base->global_randomize_case) { unsigned i; char randbits[(sizeof(namebuf)+7)/8]; strlcpy(namebuf, name, sizeof(namebuf)); rand_bytes_function(randbits, (name_len+7)/8); for (i = 0; i < name_len; ++i) { if (EVUTIL_ISALPHA(namebuf[i])) { if ((randbits[i >> 3] & (1<<(i & 7)))) namebuf[i] |= 0x20; else namebuf[i] &= ~0x20; } } name = namebuf; } /* request data lives just after the header */ req->request = ((u8 *) req) + sizeof(struct request); /* denotes that the request data shouldn't be free()ed */ req->request_appended = 1; rlen = evdns_request_data_build(name, name_len, trans_id, type, CLASS_INET, req->request, request_max_len); if (rlen < 0) goto err1; req->request_len = rlen; req->trans_id = trans_id; req->tx_count = 0; req->request_type = type; req->user_pointer = user_ptr; req->user_callback = callback; req->ns = issuing_now ? nameserver_pick(base) : NULL; req->next = req->prev = NULL; req->handle = handle; if (handle) { handle->current_req = req; handle->base = base; } return req; err1: mm_free(req); return NULL; } static void request_submit(struct request *const req) { struct evdns_base *base = req->base; ASSERT_LOCKED(base); ASSERT_VALID_REQUEST(req); if (req->ns) { /* if it has a nameserver assigned then this is going */ /* straight into the inflight queue */ evdns_request_insert(req, &REQ_HEAD(base, req->trans_id)); base->global_requests_inflight++; evdns_request_transmit(req); } else { evdns_request_insert(req, &base->req_waiting_head); base->global_requests_waiting++; } } /* exported function */ void evdns_cancel_request(struct evdns_base *base, struct evdns_request *handle) { struct request *req; if (!handle->current_req) return; if (!base) { /* This redundancy is silly; can we fix it? (Not for 2.0) XXXX */ base = handle->base; if (!base) base = handle->current_req->base; } EVDNS_LOCK(base); if (handle->pending_cb) { EVDNS_UNLOCK(base); return; } req = handle->current_req; ASSERT_VALID_REQUEST(req); reply_schedule_callback(req, 0, DNS_ERR_CANCEL, NULL); if (req->ns) { /* remove from inflight queue */ request_finished(req, &REQ_HEAD(base, req->trans_id), 1); } else { /* remove from global_waiting head */ request_finished(req, &base->req_waiting_head, 1); } EVDNS_UNLOCK(base); } /* exported function */ struct evdns_request * evdns_base_resolve_ipv4(struct evdns_base *base, const char *name, int flags, evdns_callback_type callback, void *ptr) { struct evdns_request *handle; struct request *req; log(EVDNS_LOG_DEBUG, "Resolve requested for %s", name); handle = mm_calloc(1, sizeof(*handle)); if (handle == NULL) return NULL; EVDNS_LOCK(base); if (flags & DNS_QUERY_NO_SEARCH) { req = request_new(base, handle, TYPE_A, name, flags, callback, ptr); if (req) request_submit(req); } else { search_request_new(base, handle, TYPE_A, name, flags, callback, ptr); } if (handle->current_req == NULL) { mm_free(handle); handle = NULL; } EVDNS_UNLOCK(base); return handle; } int evdns_resolve_ipv4(const char *name, int flags, evdns_callback_type callback, void *ptr) { return evdns_base_resolve_ipv4(current_base, name, flags, callback, ptr) ? 0 : -1; } /* exported function */ struct evdns_request * evdns_base_resolve_ipv6(struct evdns_base *base, const char *name, int flags, evdns_callback_type callback, void *ptr) { struct evdns_request *handle; struct request *req; log(EVDNS_LOG_DEBUG, "Resolve requested for %s", name); handle = mm_calloc(1, sizeof(*handle)); if (handle == NULL) return NULL; EVDNS_LOCK(base); if (flags & DNS_QUERY_NO_SEARCH) { req = request_new(base, handle, TYPE_AAAA, name, flags, callback, ptr); if (req) request_submit(req); } else { search_request_new(base, handle, TYPE_AAAA, name, flags, callback, ptr); } if (handle->current_req == NULL) { mm_free(handle); handle = NULL; } EVDNS_UNLOCK(base); return handle; } int evdns_resolve_ipv6(const char *name, int flags, evdns_callback_type callback, void *ptr) { return evdns_base_resolve_ipv6(current_base, name, flags, callback, ptr) ? 0 : -1; } struct evdns_request * evdns_base_resolve_reverse(struct evdns_base *base, const struct in_addr *in, int flags, evdns_callback_type callback, void *ptr) { char buf[32]; struct evdns_request *handle; struct request *req; u32 a; EVUTIL_ASSERT(in); a = ntohl(in->s_addr); evutil_snprintf(buf, sizeof(buf), "%d.%d.%d.%d.in-addr.arpa", (int)(u8)((a )&0xff), (int)(u8)((a>>8 )&0xff), (int)(u8)((a>>16)&0xff), (int)(u8)((a>>24)&0xff)); handle = mm_calloc(1, sizeof(*handle)); if (handle == NULL) return NULL; log(EVDNS_LOG_DEBUG, "Resolve requested for %s (reverse)", buf); EVDNS_LOCK(base); req = request_new(base, handle, TYPE_PTR, buf, flags, callback, ptr); if (req) request_submit(req); if (handle->current_req == NULL) { mm_free(handle); handle = NULL; } EVDNS_UNLOCK(base); return (handle); } int evdns_resolve_reverse(const struct in_addr *in, int flags, evdns_callback_type callback, void *ptr) { return evdns_base_resolve_reverse(current_base, in, flags, callback, ptr) ? 0 : -1; } struct evdns_request * evdns_base_resolve_reverse_ipv6(struct evdns_base *base, const struct in6_addr *in, int flags, evdns_callback_type callback, void *ptr) { /* 32 nybbles, 32 periods, "ip6.arpa", NUL. */ char buf[73]; char *cp; struct evdns_request *handle; struct request *req; int i; EVUTIL_ASSERT(in); cp = buf; for (i=15; i >= 0; --i) { u8 byte = in->s6_addr[i]; *cp++ = "0123456789abcdef"[byte & 0x0f]; *cp++ = '.'; *cp++ = "0123456789abcdef"[byte >> 4]; *cp++ = '.'; } EVUTIL_ASSERT(cp + strlen("ip6.arpa") < buf+sizeof(buf)); memcpy(cp, "ip6.arpa", strlen("ip6.arpa")+1); handle = mm_calloc(1, sizeof(*handle)); if (handle == NULL) return NULL; log(EVDNS_LOG_DEBUG, "Resolve requested for %s (reverse)", buf); EVDNS_LOCK(base); req = request_new(base, handle, TYPE_PTR, buf, flags, callback, ptr); if (req) request_submit(req); if (handle->current_req == NULL) { mm_free(handle); handle = NULL; } EVDNS_UNLOCK(base); return (handle); } int evdns_resolve_reverse_ipv6(const struct in6_addr *in, int flags, evdns_callback_type callback, void *ptr) { return evdns_base_resolve_reverse_ipv6(current_base, in, flags, callback, ptr) ? 0 : -1; } /* exported function */ struct evdns_request * evdns_base_resolve_txt(struct evdns_base *base, const char *name, int flags, evdns_callback_type callback, void *ptr) { struct evdns_request *handle; struct request *req; log(EVDNS_LOG_DEBUG, "Resolve requested for %s (txt)", name); handle = mm_calloc(1, sizeof(*handle)); if (handle == NULL) return NULL; EVDNS_LOCK(base); if (flags & DNS_QUERY_NO_SEARCH) { req = request_new(base, handle, TYPE_TXT, name, flags, callback, ptr); if (req) request_submit(req); } else { search_request_new(base, handle, TYPE_TXT, name, flags, callback, ptr); } if (handle->current_req == NULL) { mm_free(handle); handle = NULL; } EVDNS_UNLOCK(base); return handle; } /* ================================================================= */ /* Search support */ /* */ /* the libc resolver has support for searching a number of domains */ /* to find a name. If nothing else then it takes the single domain */ /* from the gethostname() call. */ /* */ /* It can also be configured via the domain and search options in a */ /* resolv.conf. */ /* */ /* The ndots option controls how many dots it takes for the resolver */ /* to decide that a name is non-local and so try a raw lookup first. */ struct search_domain { int len; struct search_domain *next; /* the text string is appended to this structure */ }; struct search_state { int refcount; int ndots; int num_domains; struct search_domain *head; }; static void search_state_decref(struct search_state *const state) { if (!state) return; state->refcount--; if (!state->refcount) { struct search_domain *next, *dom; for (dom = state->head; dom; dom = next) { next = dom->next; mm_free(dom); } mm_free(state); } } static struct search_state * search_state_new(void) { struct search_state *state = (struct search_state *) mm_malloc(sizeof(struct search_state)); if (!state) return NULL; memset(state, 0, sizeof(struct search_state)); state->refcount = 1; state->ndots = 1; return state; } static void search_postfix_clear(struct evdns_base *base) { search_state_decref(base->global_search_state); base->global_search_state = search_state_new(); } /* exported function */ void evdns_base_search_clear(struct evdns_base *base) { EVDNS_LOCK(base); search_postfix_clear(base); EVDNS_UNLOCK(base); } void evdns_search_clear(void) { evdns_base_search_clear(current_base); } static void search_postfix_add(struct evdns_base *base, const char *domain) { size_t domain_len; struct search_domain *sdomain; while (domain[0] == '.') domain++; domain_len = strlen(domain); ASSERT_LOCKED(base); if (!base->global_search_state) base->global_search_state = search_state_new(); if (!base->global_search_state) return; base->global_search_state->num_domains++; sdomain = (struct search_domain *) mm_malloc(sizeof(struct search_domain) + domain_len); if (!sdomain) return; memcpy( ((u8 *) sdomain) + sizeof(struct search_domain), domain, domain_len); sdomain->next = base->global_search_state->head; sdomain->len = (int) domain_len; base->global_search_state->head = sdomain; } /* reverse the order of members in the postfix list. This is needed because, */ /* when parsing resolv.conf we push elements in the wrong order */ static void search_reverse(struct evdns_base *base) { struct search_domain *cur, *prev = NULL, *next; ASSERT_LOCKED(base); cur = base->global_search_state->head; while (cur) { next = cur->next; cur->next = prev; prev = cur; cur = next; } base->global_search_state->head = prev; } /* exported function */ void evdns_base_search_add(struct evdns_base *base, const char *domain) { EVDNS_LOCK(base); search_postfix_add(base, domain); EVDNS_UNLOCK(base); } void evdns_search_add(const char *domain) { evdns_base_search_add(current_base, domain); } /* exported function */ void evdns_base_search_ndots_set(struct evdns_base *base, const int ndots) { EVDNS_LOCK(base); if (!base->global_search_state) base->global_search_state = search_state_new(); if (base->global_search_state) base->global_search_state->ndots = ndots; EVDNS_UNLOCK(base); } void evdns_search_ndots_set(const int ndots) { evdns_base_search_ndots_set(current_base, ndots); } static void search_set_from_hostname(struct evdns_base *base) { char hostname[HOST_NAME_MAX + 1], *domainname; ASSERT_LOCKED(base); search_postfix_clear(base); if (gethostname(hostname, sizeof(hostname))) return; domainname = strchr(hostname, '.'); if (!domainname) return; search_postfix_add(base, domainname); } /* warning: returns malloced string */ static char * search_make_new(const struct search_state *const state, int n, const char *const base_name) { const size_t base_len = strlen(base_name); char need_to_append_dot; struct search_domain *dom; if (!base_len) return NULL; need_to_append_dot = base_name[base_len - 1] == '.' ? 0 : 1; for (dom = state->head; dom; dom = dom->next) { if (!n--) { /* this is the postfix we want */ /* the actual postfix string is kept at the end of the structure */ const u8 *const postfix = ((u8 *) dom) + sizeof(struct search_domain); const int postfix_len = dom->len; char *const newname = (char *) mm_malloc(base_len + need_to_append_dot + postfix_len + 1); if (!newname) return NULL; memcpy(newname, base_name, base_len); if (need_to_append_dot) newname[base_len] = '.'; memcpy(newname + base_len + need_to_append_dot, postfix, postfix_len); newname[base_len + need_to_append_dot + postfix_len] = 0; return newname; } } /* we ran off the end of the list and still didn't find the requested string */ EVUTIL_ASSERT(0); return NULL; /* unreachable; stops warnings in some compilers. */ } static struct request * search_request_new(struct evdns_base *base, struct evdns_request *handle, int type, const char *const name, int flags, evdns_callback_type user_callback, void *user_arg) { ASSERT_LOCKED(base); EVUTIL_ASSERT(type == TYPE_A || type == TYPE_AAAA); EVUTIL_ASSERT(handle->current_req == NULL); if ( ((flags & DNS_QUERY_NO_SEARCH) == 0) && base->global_search_state && base->global_search_state->num_domains) { /* we have some domains to search */ struct request *req; if (string_num_dots(name) >= base->global_search_state->ndots) { req = request_new(base, handle, type, name, flags, user_callback, user_arg); if (!req) return NULL; handle->search_index = -1; } else { char *const new_name = search_make_new(base->global_search_state, 0, name); if (!new_name) return NULL; req = request_new(base, handle, type, new_name, flags, user_callback, user_arg); mm_free(new_name); if (!req) return NULL; handle->search_index = 0; } EVUTIL_ASSERT(handle->search_origname == NULL); handle->search_origname = mm_strdup(name); if (handle->search_origname == NULL) { /* XXX Should we dealloc req? If yes, how? */ if (req) mm_free(req); return NULL; } handle->search_state = base->global_search_state; handle->search_flags = flags; base->global_search_state->refcount++; request_submit(req); return req; } else { struct request *const req = request_new(base, handle, type, name, flags, user_callback, user_arg); if (!req) return NULL; request_submit(req); return req; } } /* this is called when a request has failed to find a name. We need to check */ /* if it is part of a search and, if so, try the next name in the list */ /* returns: */ /* 0 another request has been submitted */ /* 1 no more requests needed */ static int search_try_next(struct evdns_request *const handle) { struct request *req = handle->current_req; struct evdns_base *base = req->base; struct request *newreq; ASSERT_LOCKED(base); if (handle->search_state) { /* it is part of a search */ char *new_name; handle->search_index++; if (handle->search_index >= handle->search_state->num_domains) { /* no more postfixes to try, however we may need to try */ /* this name without a postfix */ if (string_num_dots(handle->search_origname) < handle->search_state->ndots) { /* yep, we need to try it raw */ newreq = request_new(base, NULL, req->request_type, handle->search_origname, handle->search_flags, req->user_callback, req->user_pointer); log(EVDNS_LOG_DEBUG, "Search: trying raw query %s", handle->search_origname); if (newreq) { search_request_finished(handle); goto submit_next; } } return 1; } new_name = search_make_new(handle->search_state, handle->search_index, handle->search_origname); if (!new_name) return 1; log(EVDNS_LOG_DEBUG, "Search: now trying %s (%d)", new_name, handle->search_index); newreq = request_new(base, NULL, req->request_type, new_name, handle->search_flags, req->user_callback, req->user_pointer); mm_free(new_name); if (!newreq) return 1; goto submit_next; } return 1; submit_next: request_finished(req, &REQ_HEAD(req->base, req->trans_id), 0); handle->current_req = newreq; newreq->handle = handle; request_submit(newreq); return 0; } static void search_request_finished(struct evdns_request *const handle) { ASSERT_LOCKED(handle->current_req->base); if (handle->search_state) { search_state_decref(handle->search_state); handle->search_state = NULL; } if (handle->search_origname) { mm_free(handle->search_origname); handle->search_origname = NULL; } } /* ================================================================= */ /* Parsing resolv.conf files */ static void evdns_resolv_set_defaults(struct evdns_base *base, int flags) { /* if the file isn't found then we assume a local resolver */ ASSERT_LOCKED(base); if (flags & DNS_OPTION_SEARCH) search_set_from_hostname(base); if (flags & DNS_OPTION_NAMESERVERS) evdns_base_nameserver_ip_add(base,"127.0.0.1"); } #ifndef _EVENT_HAVE_STRTOK_R static char * strtok_r(char *s, const char *delim, char **state) { char *cp, *start; start = cp = s ? s : *state; if (!cp) return NULL; while (*cp && !strchr(delim, *cp)) ++cp; if (!*cp) { if (cp == start) return NULL; *state = NULL; return start; } else { *cp++ = '\0'; *state = cp; return start; } } #endif /* helper version of atoi which returns -1 on error */ static int strtoint(const char *const str) { char *endptr; const int r = strtol(str, &endptr, 10); if (*endptr) return -1; return r; } /* Parse a number of seconds into a timeval; return -1 on error. */ static int strtotimeval(const char *const str, struct timeval *out) { double d; char *endptr; d = strtod(str, &endptr); if (*endptr) return -1; if (d < 0) return -1; out->tv_sec = (int) d; out->tv_usec = (int) ((d - (int) d)*1000000); if (out->tv_sec == 0 && out->tv_usec < 1000) /* less than 1 msec */ return -1; return 0; } /* helper version of atoi that returns -1 on error and clips to bounds. */ static int strtoint_clipped(const char *const str, int min, int max) { int r = strtoint(str); if (r == -1) return r; else if (rmax) return max; else return r; } static int evdns_base_set_max_requests_inflight(struct evdns_base *base, int maxinflight) { int old_n_heads = base->n_req_heads, n_heads; struct request **old_heads = base->req_heads, **new_heads, *req; int i; ASSERT_LOCKED(base); if (maxinflight < 1) maxinflight = 1; n_heads = (maxinflight+4) / 5; EVUTIL_ASSERT(n_heads > 0); new_heads = mm_calloc(n_heads, sizeof(struct request*)); if (!new_heads) return (-1); if (old_heads) { for (i = 0; i < old_n_heads; ++i) { while (old_heads[i]) { req = old_heads[i]; evdns_request_remove(req, &old_heads[i]); evdns_request_insert(req, &new_heads[req->trans_id % n_heads]); } } mm_free(old_heads); } base->req_heads = new_heads; base->n_req_heads = n_heads; base->global_max_requests_inflight = maxinflight; return (0); } /* exported function */ int evdns_base_set_option(struct evdns_base *base, const char *option, const char *val) { int res; EVDNS_LOCK(base); res = evdns_base_set_option_impl(base, option, val, DNS_OPTIONS_ALL); EVDNS_UNLOCK(base); return res; } static inline int str_matches_option(const char *s1, const char *optionname) { /* Option names are given as "option:" We accept either 'option' in * s1, or 'option:randomjunk'. The latter form is to implement the * resolv.conf parser. */ size_t optlen = strlen(optionname); size_t slen = strlen(s1); if (slen == optlen || slen == optlen - 1) return !strncmp(s1, optionname, slen); else if (slen > optlen) return !strncmp(s1, optionname, optlen); else return 0; } static int evdns_base_set_option_impl(struct evdns_base *base, const char *option, const char *val, int flags) { ASSERT_LOCKED(base); if (str_matches_option(option, "ndots:")) { const int ndots = strtoint(val); if (ndots == -1) return -1; if (!(flags & DNS_OPTION_SEARCH)) return 0; log(EVDNS_LOG_DEBUG, "Setting ndots to %d", ndots); if (!base->global_search_state) base->global_search_state = search_state_new(); if (!base->global_search_state) return -1; base->global_search_state->ndots = ndots; } else if (str_matches_option(option, "timeout:")) { struct timeval tv; if (strtotimeval(val, &tv) == -1) return -1; if (!(flags & DNS_OPTION_MISC)) return 0; log(EVDNS_LOG_DEBUG, "Setting timeout to %s", val); memcpy(&base->global_timeout, &tv, sizeof(struct timeval)); } else if (str_matches_option(option, "getaddrinfo-allow-skew:")) { struct timeval tv; if (strtotimeval(val, &tv) == -1) return -1; if (!(flags & DNS_OPTION_MISC)) return 0; log(EVDNS_LOG_DEBUG, "Setting getaddrinfo-allow-skew to %s", val); memcpy(&base->global_getaddrinfo_allow_skew, &tv, sizeof(struct timeval)); } else if (str_matches_option(option, "max-timeouts:")) { const int maxtimeout = strtoint_clipped(val, 1, 255); if (maxtimeout == -1) return -1; if (!(flags & DNS_OPTION_MISC)) return 0; log(EVDNS_LOG_DEBUG, "Setting maximum allowed timeouts to %d", maxtimeout); base->global_max_nameserver_timeout = maxtimeout; } else if (str_matches_option(option, "max-inflight:")) { const int maxinflight = strtoint_clipped(val, 1, 65000); if (maxinflight == -1) return -1; if (!(flags & DNS_OPTION_MISC)) return 0; log(EVDNS_LOG_DEBUG, "Setting maximum inflight requests to %d", maxinflight); evdns_base_set_max_requests_inflight(base, maxinflight); } else if (str_matches_option(option, "attempts:")) { int retries = strtoint(val); if (retries == -1) return -1; if (retries > 255) retries = 255; if (!(flags & DNS_OPTION_MISC)) return 0; log(EVDNS_LOG_DEBUG, "Setting retries to %d", retries); base->global_max_retransmits = retries; } else if (str_matches_option(option, "randomize-case:")) { int randcase = strtoint(val); if (!(flags & DNS_OPTION_MISC)) return 0; base->global_randomize_case = randcase; } else if (str_matches_option(option, "use-tcp:")) { if (!(flags & DNS_OPTION_MISC)) return 0; if (evutil_ascii_strcasecmp(val, "never") == 0) { base->global_use_tcp = 0; } else if (evutil_ascii_strcasecmp(val, "on-tc") == 0) { base->global_use_tcp = 1; } else if (evutil_ascii_strcasecmp(val, "on-error") == 0) { base->global_use_tcp = 2; } else if (evutil_ascii_strcasecmp(val, "always") == 0) { base->global_use_tcp = 3; } else { log(EVDNS_LOG_WARN, "Invalid value '%s' for the 'use-tcp' option", val); } } else if (str_matches_option(option, "bind-to:")) { /* XXX This only applies to successive nameservers, not * to already-configured ones. We might want to fix that. */ int len = sizeof(base->global_outgoing_address); if (!(flags & DNS_OPTION_NAMESERVERS)) return 0; if (evutil_parse_sockaddr_port(val, (struct sockaddr*)&base->global_outgoing_address, &len)) return -1; base->global_outgoing_addrlen = len; } else if (str_matches_option(option, "initial-probe-timeout:")) { struct timeval tv; if (strtotimeval(val, &tv) == -1) return -1; if (tv.tv_sec > 3600) tv.tv_sec = 3600; if (!(flags & DNS_OPTION_MISC)) return 0; log(EVDNS_LOG_DEBUG, "Setting initial probe timeout to %s", val); memcpy(&base->global_nameserver_probe_initial_timeout, &tv, sizeof(tv)); } return 0; } int evdns_set_option(const char *option, const char *val, int flags) { if (!current_base) current_base = evdns_base_new(NULL, 0); return evdns_base_set_option(current_base, option, val); } static void resolv_conf_parse_line(struct evdns_base *base, char *const start, int flags) { char *strtok_state; static const char *const delims = " \t"; #define NEXT_TOKEN strtok_r(NULL, delims, &strtok_state) char *const first_token = strtok_r(start, delims, &strtok_state); ASSERT_LOCKED(base); if (!first_token) return; if (!strcmp(first_token, "nameserver") && (flags & DNS_OPTION_NAMESERVERS)) { const char *const nameserver = NEXT_TOKEN; if (nameserver) evdns_base_nameserver_ip_add(base, nameserver); } else if (!strcmp(first_token, "domain") && (flags & DNS_OPTION_SEARCH)) { const char *const domain = NEXT_TOKEN; if (domain) { search_postfix_clear(base); search_postfix_add(base, domain); } } else if (!strcmp(first_token, "search") && (flags & DNS_OPTION_SEARCH)) { const char *domain; search_postfix_clear(base); while ((domain = NEXT_TOKEN)) { search_postfix_add(base, domain); } search_reverse(base); } else if (!strcmp(first_token, "options")) { const char *option; while ((option = NEXT_TOKEN)) { const char *val = strchr(option, ':'); evdns_base_set_option_impl(base, option, val ? val+1 : "", flags); } } #undef NEXT_TOKEN } /* exported function */ /* returns: */ /* 0 no errors */ /* 1 failed to open file */ /* 2 failed to stat file */ /* 3 file too large */ /* 4 out of memory */ /* 5 short read from file */ int evdns_base_resolv_conf_parse(struct evdns_base *base, int flags, const char *const filename) { int res; EVDNS_LOCK(base); res = evdns_base_resolv_conf_parse_impl(base, flags, filename); EVDNS_UNLOCK(base); return res; } static char * evdns_get_default_hosts_filename(void) { #ifdef WIN32 /* Windows is a little coy about where it puts its configuration * files. Sure, they're _usually_ in C:\windows\system32, but * there's no reason in principle they couldn't be in * W:\hoboken chicken emergency\ */ char path[MAX_PATH+1]; static const char hostfile[] = "\\drivers\\etc\\hosts"; char *path_out; size_t len_out; if (! SHGetSpecialFolderPathA(NULL, path, CSIDL_SYSTEM, 0)) return NULL; len_out = strlen(path)+strlen(hostfile); path_out = mm_malloc(len_out+1); evutil_snprintf(path_out, len_out, "%s%s", path, hostfile); return path_out; #else return mm_strdup("/etc/hosts"); #endif } static int evdns_base_resolv_conf_parse_impl(struct evdns_base *base, int flags, const char *const filename) { size_t n; char *resolv; char *start; int err = 0; log(EVDNS_LOG_DEBUG, "Parsing resolv.conf file %s", filename); if (flags & DNS_OPTION_HOSTSFILE) { char *fname = evdns_get_default_hosts_filename(); evdns_base_load_hosts(base, fname); if (fname) mm_free(fname); } if ((err = evutil_read_file(filename, &resolv, &n, 0)) < 0) { if (err == -1) { /* No file. */ evdns_resolv_set_defaults(base, flags); return 1; } else { return 2; } } start = resolv; for (;;) { char *const newline = strchr(start, '\n'); if (!newline) { resolv_conf_parse_line(base, start, flags); break; } else { *newline = 0; resolv_conf_parse_line(base, start, flags); start = newline + 1; } } if (!base->server_head && (flags & DNS_OPTION_NAMESERVERS)) { /* no nameservers were configured. */ evdns_base_nameserver_ip_add(base, "127.0.0.1"); err = 6; } if (flags & DNS_OPTION_SEARCH && (!base->global_search_state || base->global_search_state->num_domains == 0)) { search_set_from_hostname(base); } mm_free(resolv); return err; } int evdns_resolv_conf_parse(int flags, const char *const filename) { if (!current_base) current_base = evdns_base_new(NULL, 0); return evdns_base_resolv_conf_parse(current_base, flags, filename); } #ifdef WIN32 /* Add multiple nameservers from a space-or-comma-separated list. */ static int evdns_nameserver_ip_add_line(struct evdns_base *base, const char *ips) { const char *addr; char *buf; int r; ASSERT_LOCKED(base); while (*ips) { while (isspace(*ips) || *ips == ',' || *ips == '\t') ++ips; addr = ips; while (isdigit(*ips) || *ips == '.' || *ips == ':' || *ips=='[' || *ips==']') ++ips; buf = mm_malloc(ips-addr+1); if (!buf) return 4; memcpy(buf, addr, ips-addr); buf[ips-addr] = '\0'; r = evdns_base_nameserver_ip_add(base, buf); mm_free(buf); if (r) return r; } return 0; } typedef DWORD(WINAPI *GetNetworkParams_fn_t)(FIXED_INFO *, DWORD*); /* Use the windows GetNetworkParams interface in iphlpapi.dll to */ /* figure out what our nameservers are. */ static int load_nameservers_with_getnetworkparams(struct evdns_base *base) { /* Based on MSDN examples and inspection of c-ares code. */ FIXED_INFO *fixed; HMODULE handle = 0; ULONG size = sizeof(FIXED_INFO); void *buf = NULL; int status = 0, r, added_any; IP_ADDR_STRING *ns; GetNetworkParams_fn_t fn; ASSERT_LOCKED(base); if (!(handle = evutil_load_windows_system_library( TEXT("iphlpapi.dll")))) { log(EVDNS_LOG_WARN, "Could not open iphlpapi.dll"); status = -1; goto done; } if (!(fn = (GetNetworkParams_fn_t) GetProcAddress(handle, "GetNetworkParams"))) { log(EVDNS_LOG_WARN, "Could not get address of function."); status = -1; goto done; } buf = mm_malloc(size); if (!buf) { status = 4; goto done; } fixed = buf; r = fn(fixed, &size); if (r != ERROR_SUCCESS && r != ERROR_BUFFER_OVERFLOW) { status = -1; goto done; } if (r != ERROR_SUCCESS) { mm_free(buf); buf = mm_malloc(size); if (!buf) { status = 4; goto done; } fixed = buf; r = fn(fixed, &size); if (r != ERROR_SUCCESS) { log(EVDNS_LOG_DEBUG, "fn() failed."); status = -1; goto done; } } EVUTIL_ASSERT(fixed); added_any = 0; ns = &(fixed->DnsServerList); while (ns) { r = evdns_nameserver_ip_add_line(base, ns->IpAddress.String); if (r) { log(EVDNS_LOG_DEBUG,"Could not add nameserver %s to list,error: %d", (ns->IpAddress.String),(int)GetLastError()); status = r; } else { ++added_any; log(EVDNS_LOG_DEBUG,"Successfully added %s as nameserver",ns->IpAddress.String); } ns = ns->Next; } if (!added_any) { log(EVDNS_LOG_DEBUG, "No nameservers added."); if (status == 0) status = -1; } else { status = 0; } done: if (buf) mm_free(buf); if (handle) FreeLibrary(handle); return status; } static int config_nameserver_from_reg_key(struct evdns_base *base, HKEY key, const TCHAR *subkey) { char *buf; DWORD bufsz = 0, type = 0; int status = 0; ASSERT_LOCKED(base); if (RegQueryValueEx(key, subkey, 0, &type, NULL, &bufsz) != ERROR_MORE_DATA) return -1; if (!(buf = mm_malloc(bufsz))) return -1; if (RegQueryValueEx(key, subkey, 0, &type, (LPBYTE)buf, &bufsz) == ERROR_SUCCESS && bufsz > 1) { status = evdns_nameserver_ip_add_line(base,buf); } mm_free(buf); return status; } #define SERVICES_KEY TEXT("System\\CurrentControlSet\\Services\\") #define WIN_NS_9X_KEY SERVICES_KEY TEXT("VxD\\MSTCP") #define WIN_NS_NT_KEY SERVICES_KEY TEXT("Tcpip\\Parameters") static int load_nameservers_from_registry(struct evdns_base *base) { int found = 0; int r; #define TRY(k, name) \ if (!found && config_nameserver_from_reg_key(base,k,TEXT(name)) == 0) { \ log(EVDNS_LOG_DEBUG,"Found nameservers in %s/%s",#k,name); \ found = 1; \ } else if (!found) { \ log(EVDNS_LOG_DEBUG,"Didn't find nameservers in %s/%s", \ #k,#name); \ } ASSERT_LOCKED(base); if (((int)GetVersion()) > 0) { /* NT */ HKEY nt_key = 0, interfaces_key = 0; if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0, KEY_READ, &nt_key) != ERROR_SUCCESS) { log(EVDNS_LOG_DEBUG,"Couldn't open nt key, %d",(int)GetLastError()); return -1; } r = RegOpenKeyEx(nt_key, TEXT("Interfaces"), 0, KEY_QUERY_VALUE|KEY_ENUMERATE_SUB_KEYS, &interfaces_key); if (r != ERROR_SUCCESS) { log(EVDNS_LOG_DEBUG,"Couldn't open interfaces key, %d",(int)GetLastError()); return -1; } TRY(nt_key, "NameServer"); TRY(nt_key, "DhcpNameServer"); TRY(interfaces_key, "NameServer"); TRY(interfaces_key, "DhcpNameServer"); RegCloseKey(interfaces_key); RegCloseKey(nt_key); } else { HKEY win_key = 0; if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_9X_KEY, 0, KEY_READ, &win_key) != ERROR_SUCCESS) { log(EVDNS_LOG_DEBUG, "Couldn't open registry key, %d", (int)GetLastError()); return -1; } TRY(win_key, "NameServer"); RegCloseKey(win_key); } if (found == 0) { log(EVDNS_LOG_WARN,"Didn't find any nameservers."); } return found ? 0 : -1; #undef TRY } int evdns_base_config_windows_nameservers(struct evdns_base *base) { int r; char *fname; if (base == NULL) base = current_base; if (base == NULL) return -1; EVDNS_LOCK(base); if (load_nameservers_with_getnetworkparams(base) == 0) { EVDNS_UNLOCK(base); return 0; } r = load_nameservers_from_registry(base); fname = evdns_get_default_hosts_filename(); evdns_base_load_hosts(base, fname); if (fname) mm_free(fname); EVDNS_UNLOCK(base); return r; } int evdns_config_windows_nameservers(void) { if (!current_base) { current_base = evdns_base_new(NULL, 1); return current_base == NULL ? -1 : 0; } else { return evdns_base_config_windows_nameservers(current_base); } } #endif struct evdns_base * evdns_base_new(struct event_base *event_base, int initialize_nameservers) { struct evdns_base *base; if (rand_init_function != NULL && rand_init_function() < 0) { log(EVDNS_LOG_WARN, "Unable to seed random number generator; " "DNS can't run."); return NULL; } /* Give the evutil library a hook into its evdns-enabled * functionality. We can't just call evdns_getaddrinfo directly or * else libevent-core will depend on libevent-extras. */ evutil_set_evdns_getaddrinfo_fn(evdns_getaddrinfo); base = mm_malloc(sizeof(struct evdns_base)); if (base == NULL) return (NULL); memset(base, 0, sizeof(struct evdns_base)); base->req_waiting_head = NULL; EVTHREAD_ALLOC_LOCK(base->lock, EVTHREAD_LOCKTYPE_RECURSIVE); EVDNS_LOCK(base); /* Set max requests inflight and allocate req_heads. */ base->req_heads = NULL; evdns_base_set_max_requests_inflight(base, 64); base->server_head = NULL; base->event_base = event_base; base->global_good_nameservers = base->global_requests_inflight = base->global_requests_waiting = 0; base->global_timeout.tv_sec = 5; base->global_timeout.tv_usec = 0; base->global_max_reissues = 1; base->global_max_retransmits = 3; base->global_max_nameserver_timeout = 3; base->global_search_state = NULL; base->global_randomize_case = 1; base->global_use_tcp = 0; base->global_getaddrinfo_allow_skew.tv_sec = 3; base->global_getaddrinfo_allow_skew.tv_usec = 0; base->global_nameserver_probe_initial_timeout.tv_sec = 10; base->global_nameserver_probe_initial_timeout.tv_usec = 0; TAILQ_INIT(&base->hostsdb); if (initialize_nameservers) { int r; #ifdef WIN32 r = evdns_base_config_windows_nameservers(base); #else r = evdns_base_resolv_conf_parse(base, DNS_OPTIONS_ALL, "/etc/resolv.conf"); #endif if (r == -1) { evdns_base_free_and_unlock(base, 0); return NULL; } } EVDNS_UNLOCK(base); return base; } int evdns_init(void) { struct evdns_base *base = evdns_base_new(NULL, 1); if (base) { current_base = base; return 0; } else { return -1; } } const char * evdns_err_to_string(int err) { switch (err) { case DNS_ERR_NONE: return "no error"; case DNS_ERR_FORMAT: return "misformatted query"; case DNS_ERR_SERVERFAILED: return "server failed"; case DNS_ERR_NOTEXIST: return "name does not exist"; case DNS_ERR_NOTIMPL: return "query not implemented"; case DNS_ERR_REFUSED: return "refused"; case DNS_ERR_TRUNCATED: return "reply truncated or ill-formed"; case DNS_ERR_UNKNOWN: return "unknown"; case DNS_ERR_TIMEOUT: return "request timed out"; case DNS_ERR_SHUTDOWN: return "dns subsystem shut down"; case DNS_ERR_CANCEL: return "dns request canceled"; case DNS_ERR_NODATA: return "no records in the reply"; default: return "[Unknown error code]"; } } static void evdns_nameserver_free(struct nameserver *server) { if (server->socket >= 0) evutil_closesocket(server->socket); (void) event_del(&server->event); event_debug_unassign(&server->event); if (server->state == 0) (void) event_del(&server->timeout_event); if (server->probe_request) { evdns_cancel_request(server->base, server->probe_request); server->probe_request = NULL; } event_debug_unassign(&server->timeout_event); mm_free(server); } static void evdns_base_free_and_unlock(struct evdns_base *base, int fail_requests) { struct nameserver *server, *server_next; struct search_domain *dom, *dom_next; int i; /* Requires that we hold the lock. */ /* TODO(nickm) we might need to refcount here. */ for (server = base->server_head; server; server = server_next) { server_next = server->next; server->probe_request = NULL; evdns_nameserver_free(server); if (server_next == base->server_head) break; } base->server_head = NULL; base->global_good_nameservers = 0; for (i = 0; i < base->n_req_heads; ++i) { while (base->req_heads[i]) { if (fail_requests) reply_schedule_callback(base->req_heads[i], 0, DNS_ERR_SHUTDOWN, NULL); request_finished(base->req_heads[i], &REQ_HEAD(base, base->req_heads[i]->trans_id), 1); } } while (base->req_waiting_head) { if (fail_requests) reply_schedule_callback(base->req_waiting_head, 0, DNS_ERR_SHUTDOWN, NULL); request_finished(base->req_waiting_head, &base->req_waiting_head, 1); } base->global_requests_inflight = base->global_requests_waiting = 0; if (base->global_search_state) { for (dom = base->global_search_state->head; dom; dom = dom_next) { dom_next = dom->next; mm_free(dom); } mm_free(base->global_search_state); base->global_search_state = NULL; } { struct hosts_entry *victim; while ((victim = TAILQ_FIRST(&base->hostsdb))) { TAILQ_REMOVE(&base->hostsdb, victim, next); mm_free(victim); } } mm_free(base->req_heads); EVDNS_UNLOCK(base); EVTHREAD_FREE_LOCK(base->lock, EVTHREAD_LOCKTYPE_RECURSIVE); mm_free(base); } void evdns_base_free(struct evdns_base *base, int fail_requests) { EVDNS_LOCK(base); evdns_base_free_and_unlock(base, fail_requests); } void evdns_shutdown(int fail_requests) { if (current_base) { struct evdns_base *b = current_base; current_base = NULL; evdns_base_free(b, fail_requests); } evdns_log_fn = NULL; } static int evdns_base_parse_hosts_line(struct evdns_base *base, char *line) { char *strtok_state; static const char *const delims = " \t"; char *const addr = strtok_r(line, delims, &strtok_state); char *hostname, *hash; struct sockaddr_storage ss; int socklen = sizeof(ss); ASSERT_LOCKED(base); #define NEXT_TOKEN strtok_r(NULL, delims, &strtok_state) if (!addr || *addr == '#') return 0; memset(&ss, 0, sizeof(ss)); if (evutil_parse_sockaddr_port(addr, (struct sockaddr*)&ss, &socklen)<0) return -1; if (socklen > (int)sizeof(struct sockaddr_in6)) return -1; if (sockaddr_getport((struct sockaddr*)&ss)) return -1; while ((hostname = NEXT_TOKEN)) { struct hosts_entry *he; size_t namelen; if ((hash = strchr(hostname, '#'))) { if (hash == hostname) return 0; *hash = '\0'; } namelen = strlen(hostname); he = mm_calloc(1, sizeof(struct hosts_entry)+namelen); if (!he) return -1; EVUTIL_ASSERT(socklen <= (int)sizeof(he->addr)); memcpy(&he->addr, &ss, socklen); memcpy(he->hostname, hostname, namelen+1); he->addrlen = socklen; TAILQ_INSERT_TAIL(&base->hostsdb, he, next); if (hash) return 0; } return 0; #undef NEXT_TOKEN } static int evdns_base_load_hosts_impl(struct evdns_base *base, const char *hosts_fname) { char *str=NULL, *cp, *eol; size_t len; int err=0; ASSERT_LOCKED(base); if (hosts_fname == NULL || (err = evutil_read_file(hosts_fname, &str, &len, 0)) < 0) { char tmp[64]; strlcpy(tmp, "127.0.0.1 localhost", sizeof(tmp)); evdns_base_parse_hosts_line(base, tmp); strlcpy(tmp, "::1 localhost", sizeof(tmp)); evdns_base_parse_hosts_line(base, tmp); return err ? -1 : 0; } /* This will break early if there is a NUL in the hosts file. * Probably not a problem.*/ cp = str; for (;;) { eol = strchr(cp, '\n'); if (eol) { *eol = '\0'; evdns_base_parse_hosts_line(base, cp); cp = eol+1; } else { evdns_base_parse_hosts_line(base, cp); break; } } mm_free(str); return 0; } int evdns_base_load_hosts(struct evdns_base *base, const char *hosts_fname) { int res; if (!base) base = current_base; EVDNS_LOCK(base); res = evdns_base_load_hosts_impl(base, hosts_fname); EVDNS_UNLOCK(base); return res; } /* A single request for a getaddrinfo, either v4 or v6. */ struct getaddrinfo_subrequest { struct evdns_request *r; ev_uint32_t type; }; /* State data used to implement an in-progress getaddrinfo. */ struct evdns_getaddrinfo_request { struct evdns_base *evdns_base; /* Copy of the modified 'hints' data that we'll use to build * answers. */ struct evutil_addrinfo hints; /* The callback to invoke when we're done */ evdns_getaddrinfo_cb user_cb; /* User-supplied data to give to the callback. */ void *user_data; /* The port to use when building sockaddrs. */ ev_uint16_t port; /* The sub_request for an A record (if any) */ struct getaddrinfo_subrequest ipv4_request; /* The sub_request for an AAAA record (if any) */ struct getaddrinfo_subrequest ipv6_request; /* The cname result that we were told (if any) */ char *cname_result; /* If we have one request answered and one request still inflight, * then this field holds the answer from the first request... */ struct evutil_addrinfo *pending_result; /* And this event is a timeout that will tell us to cancel the second * request if it's taking a long time. */ struct event timeout; /* And this field holds the error code from the first request... */ int pending_error; /* If this is set, the user canceled this request. */ unsigned user_canceled : 1; /* If this is set, the user can no longer cancel this request; we're * just waiting for the free. */ unsigned request_done : 1; }; /* Convert an evdns errors to the equivalent getaddrinfo error. */ static int evdns_err_to_getaddrinfo_err(int e1) { /* XXX Do this better! */ if (e1 == DNS_ERR_NONE) return 0; else if (e1 == DNS_ERR_NOTEXIST) return EVUTIL_EAI_NONAME; else return EVUTIL_EAI_FAIL; } /* Return the more informative of two getaddrinfo errors. */ static int getaddrinfo_merge_err(int e1, int e2) { /* XXXX be cleverer here. */ if (e1 == 0) return e2; else return e1; } static void free_getaddrinfo_request(struct evdns_getaddrinfo_request *data) { /* DO NOT CALL this if either of the requests is pending. Only once * both callbacks have been invoked is it safe to free the request */ if (data->pending_result) evutil_freeaddrinfo(data->pending_result); if (data->cname_result) mm_free(data->cname_result); event_del(&data->timeout); mm_free(data); return; } static void add_cname_to_reply(struct evdns_getaddrinfo_request *data, struct evutil_addrinfo *ai) { if (data->cname_result && ai) { ai->ai_canonname = data->cname_result; data->cname_result = NULL; } } /* Callback: invoked when one request in a mixed-format A/AAAA getaddrinfo * request has finished, but the other one took too long to answer. Pass * along the answer we got, and cancel the other request. */ static void evdns_getaddrinfo_timeout_cb(evutil_socket_t fd, short what, void *ptr) { int v4_timedout = 0, v6_timedout = 0; struct evdns_getaddrinfo_request *data = ptr; /* Cancel any pending requests, and note which one */ if (data->ipv4_request.r) { /* XXXX This does nothing if the request's callback is already * running (pending_cb is set). */ evdns_cancel_request(NULL, data->ipv4_request.r); v4_timedout = 1; EVDNS_LOCK(data->evdns_base); ++data->evdns_base->getaddrinfo_ipv4_timeouts; EVDNS_UNLOCK(data->evdns_base); } if (data->ipv6_request.r) { /* XXXX This does nothing if the request's callback is already * running (pending_cb is set). */ evdns_cancel_request(NULL, data->ipv6_request.r); v6_timedout = 1; EVDNS_LOCK(data->evdns_base); ++data->evdns_base->getaddrinfo_ipv6_timeouts; EVDNS_UNLOCK(data->evdns_base); } /* We only use this timeout callback when we have an answer for * one address. */ EVUTIL_ASSERT(!v4_timedout || !v6_timedout); /* Report the outcome of the other request that didn't time out. */ if (data->pending_result) { add_cname_to_reply(data, data->pending_result); data->user_cb(0, data->pending_result, data->user_data); data->pending_result = NULL; } else { int e = data->pending_error; if (!e) e = EVUTIL_EAI_AGAIN; data->user_cb(e, NULL, data->user_data); } data->user_cb = NULL; /* prevent double-call if evdns callbacks are * in-progress. XXXX It would be better if this * weren't necessary. */ if (!v4_timedout && !v6_timedout) { /* should be impossible? XXXX */ free_getaddrinfo_request(data); } } static int evdns_getaddrinfo_set_timeout(struct evdns_base *evdns_base, struct evdns_getaddrinfo_request *data) { return event_add(&data->timeout, &evdns_base->global_getaddrinfo_allow_skew); } static inline int evdns_result_is_answer(int result) { return (result != DNS_ERR_NOTIMPL && result != DNS_ERR_REFUSED && result != DNS_ERR_SERVERFAILED && result != DNS_ERR_CANCEL); } static void evdns_getaddrinfo_gotresolve(int result, char type, int count, int ttl, void *addresses, void *arg) { int i; struct getaddrinfo_subrequest *req = arg; struct getaddrinfo_subrequest *other_req; struct evdns_getaddrinfo_request *data; struct evutil_addrinfo *res; struct sockaddr_in sin; struct sockaddr_in6 sin6; struct sockaddr *sa; int socklen, addrlen; void *addrp; int err; int user_canceled; EVUTIL_ASSERT(req->type == DNS_IPv4_A || req->type == DNS_IPv6_AAAA); if (req->type == DNS_IPv4_A) { data = EVUTIL_UPCAST(req, struct evdns_getaddrinfo_request, ipv4_request); other_req = &data->ipv6_request; } else { data = EVUTIL_UPCAST(req, struct evdns_getaddrinfo_request, ipv6_request); other_req = &data->ipv4_request; } EVDNS_LOCK(data->evdns_base); if (evdns_result_is_answer(result)) { if (req->type == DNS_IPv4_A) ++data->evdns_base->getaddrinfo_ipv4_answered; else ++data->evdns_base->getaddrinfo_ipv6_answered; } user_canceled = data->user_canceled; if (other_req->r == NULL) data->request_done = 1; EVDNS_UNLOCK(data->evdns_base); req->r = NULL; if (result == DNS_ERR_CANCEL && ! user_canceled) { /* Internal cancel request from timeout or internal error. * we already answered the user. */ if (other_req->r == NULL) free_getaddrinfo_request(data); return; } if (data->user_cb == NULL) { /* We already answered. XXXX This shouldn't be needed; see * comments in evdns_getaddrinfo_timeout_cb */ free_getaddrinfo_request(data); return; } if (result == DNS_ERR_NONE) { if (count == 0) err = EVUTIL_EAI_NODATA; else err = 0; } else { err = evdns_err_to_getaddrinfo_err(result); } if (err) { /* Looks like we got an error. */ if (other_req->r) { /* The other request is still working; maybe it will * succeed. */ /* XXXX handle failure from set_timeout */ evdns_getaddrinfo_set_timeout(data->evdns_base, data); data->pending_error = err; return; } if (user_canceled) { data->user_cb(EVUTIL_EAI_CANCEL, NULL, data->user_data); } else if (data->pending_result) { /* If we have an answer waiting, and we weren't * canceled, ignore this error. */ add_cname_to_reply(data, data->pending_result); data->user_cb(0, data->pending_result, data->user_data); data->pending_result = NULL; } else { if (data->pending_error) err = getaddrinfo_merge_err(err, data->pending_error); data->user_cb(err, NULL, data->user_data); } free_getaddrinfo_request(data); return; } else if (user_canceled) { if (other_req->r) { /* The other request is still working; let it hit this * callback with EVUTIL_EAI_CANCEL callback and report * the failure. */ return; } data->user_cb(EVUTIL_EAI_CANCEL, NULL, data->user_data); free_getaddrinfo_request(data); return; } /* Looks like we got some answers. We should turn them into addrinfos * and then either queue those or return them all. */ EVUTIL_ASSERT(type == DNS_IPv4_A || type == DNS_IPv6_AAAA); if (type == DNS_IPv4_A) { memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; sin.sin_port = htons(data->port); sa = (struct sockaddr *)&sin; socklen = sizeof(sin); addrlen = 4; addrp = &sin.sin_addr.s_addr; } else { memset(&sin6, 0, sizeof(sin6)); sin6.sin6_family = AF_INET6; sin6.sin6_port = htons(data->port); sa = (struct sockaddr *)&sin6; socklen = sizeof(sin6); addrlen = 16; addrp = &sin6.sin6_addr.s6_addr; } res = NULL; for (i=0; i < count; ++i) { struct evutil_addrinfo *ai; memcpy(addrp, ((char*)addresses)+i*addrlen, addrlen); ai = evutil_new_addrinfo(sa, socklen, &data->hints); if (!ai) { if (other_req->r) { evdns_cancel_request(NULL, other_req->r); } data->user_cb(EVUTIL_EAI_MEMORY, NULL, data->user_data); if (res) evutil_freeaddrinfo(res); if (other_req->r == NULL) free_getaddrinfo_request(data); return; } res = evutil_addrinfo_append(res, ai); } if (other_req->r) { /* The other request is still in progress; wait for it */ /* XXXX handle failure from set_timeout */ evdns_getaddrinfo_set_timeout(data->evdns_base, data); data->pending_result = res; return; } else { /* The other request is done or never started; append its * results (if any) and return them. */ if (data->pending_result) { if (req->type == DNS_IPv4_A) res = evutil_addrinfo_append(res, data->pending_result); else res = evutil_addrinfo_append( data->pending_result, res); data->pending_result = NULL; } /* Call the user callback. */ add_cname_to_reply(data, res); data->user_cb(0, res, data->user_data); /* Free data. */ free_getaddrinfo_request(data); } } static struct hosts_entry * find_hosts_entry(struct evdns_base *base, const char *hostname, struct hosts_entry *find_after) { struct hosts_entry *e; if (find_after) e = TAILQ_NEXT(find_after, next); else e = TAILQ_FIRST(&base->hostsdb); for (; e; e = TAILQ_NEXT(e, next)) { if (!evutil_ascii_strcasecmp(e->hostname, hostname)) return e; } return NULL; } static int evdns_getaddrinfo_fromhosts(struct evdns_base *base, const char *nodename, struct evutil_addrinfo *hints, ev_uint16_t port, struct evutil_addrinfo **res) { int n_found = 0; struct hosts_entry *e; struct evutil_addrinfo *ai=NULL; int f = hints->ai_family; EVDNS_LOCK(base); for (e = find_hosts_entry(base, nodename, NULL); e; e = find_hosts_entry(base, nodename, e)) { struct evutil_addrinfo *ai_new; ++n_found; if ((e->addr.sa.sa_family == AF_INET && f == PF_INET6) || (e->addr.sa.sa_family == AF_INET6 && f == PF_INET)) continue; ai_new = evutil_new_addrinfo(&e->addr.sa, e->addrlen, hints); if (!ai_new) { n_found = 0; goto out; } sockaddr_setport(ai_new->ai_addr, port); ai = evutil_addrinfo_append(ai, ai_new); } EVDNS_UNLOCK(base); out: if (n_found) { /* Note that we return an empty answer if we found entries for * this hostname but none were of the right address type. */ *res = ai; return 0; } else { if (ai) evutil_freeaddrinfo(ai); return -1; } } struct evdns_getaddrinfo_request * evdns_getaddrinfo(struct evdns_base *dns_base, const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, evdns_getaddrinfo_cb cb, void *arg) { struct evdns_getaddrinfo_request *data; struct evutil_addrinfo hints; struct evutil_addrinfo *res = NULL; int err; int port = 0; int want_cname = 0; if (!dns_base) { dns_base = current_base; if (!dns_base) { log(EVDNS_LOG_WARN, "Call to getaddrinfo_async with no " "evdns_base configured."); cb(EVUTIL_EAI_FAIL, NULL, arg); /* ??? better error? */ return NULL; } } /* If we _must_ answer this immediately, do so. */ if ((hints_in && (hints_in->ai_flags & EVUTIL_AI_NUMERICHOST))) { res = NULL; err = evutil_getaddrinfo(nodename, servname, hints_in, &res); cb(err, res, arg); return NULL; } if (hints_in) { memcpy(&hints, hints_in, sizeof(hints)); } else { memset(&hints, 0, sizeof(hints)); hints.ai_family = PF_UNSPEC; } evutil_adjust_hints_for_addrconfig(&hints); /* Now try to see if we _can_ answer immediately. */ /* (It would be nice to do this by calling getaddrinfo directly, with * AI_NUMERICHOST, on plaforms that have it, but we can't: there isn't * a reliable way to distinguish the "that wasn't a numeric host!" case * from any other EAI_NONAME cases.) */ err = evutil_getaddrinfo_common(nodename, servname, &hints, &res, &port); if (err != EVUTIL_EAI_NEED_RESOLVE) { cb(err, res, arg); return NULL; } /* If there is an entry in the hosts file, we should give it now. */ if (!evdns_getaddrinfo_fromhosts(dns_base, nodename, &hints, port, &res)) { cb(0, res, arg); return NULL; } /* Okay, things are serious now. We're going to need to actually * launch a request. */ data = mm_calloc(1,sizeof(struct evdns_getaddrinfo_request)); if (!data) { cb(EVUTIL_EAI_MEMORY, NULL, arg); return NULL; } memcpy(&data->hints, &hints, sizeof(data->hints)); data->port = (ev_uint16_t)port; data->ipv4_request.type = DNS_IPv4_A; data->ipv6_request.type = DNS_IPv6_AAAA; data->user_cb = cb; data->user_data = arg; data->evdns_base = dns_base; want_cname = (hints.ai_flags & EVUTIL_AI_CANONNAME); /* If we are asked for a PF_UNSPEC address, we launch two requests in * parallel: one for an A address and one for an AAAA address. We * can't send just one request, since many servers only answer one * question per DNS request. * * Once we have the answer to one request, we allow for a short * timeout before we report it, to see if the other one arrives. If * they both show up in time, then we report both the answers. * * If too many addresses of one type time out or fail, we should stop * launching those requests. (XXX we don't do that yet.) */ if (hints.ai_family != PF_INET6) { log(EVDNS_LOG_DEBUG, "Sending request for %s on ipv4 as %p", nodename, &data->ipv4_request); data->ipv4_request.r = evdns_base_resolve_ipv4(dns_base, nodename, 0, evdns_getaddrinfo_gotresolve, &data->ipv4_request); if (want_cname) data->ipv4_request.r->current_req->put_cname_in_ptr = &data->cname_result; } if (hints.ai_family != PF_INET) { log(EVDNS_LOG_DEBUG, "Sending request for %s on ipv6 as %p", nodename, &data->ipv6_request); data->ipv6_request.r = evdns_base_resolve_ipv6(dns_base, nodename, 0, evdns_getaddrinfo_gotresolve, &data->ipv6_request); if (want_cname) data->ipv6_request.r->current_req->put_cname_in_ptr = &data->cname_result; } evtimer_assign(&data->timeout, dns_base->event_base, evdns_getaddrinfo_timeout_cb, data); if (data->ipv4_request.r || data->ipv6_request.r) { return data; } else { mm_free(data); cb(EVUTIL_EAI_FAIL, NULL, arg); return NULL; } } void evdns_getaddrinfo_cancel(struct evdns_getaddrinfo_request *data) { EVDNS_LOCK(data->evdns_base); if (data->request_done) { EVDNS_UNLOCK(data->evdns_base); return; } event_del(&data->timeout); data->user_canceled = 1; if (data->ipv4_request.r) evdns_cancel_request(data->evdns_base, data->ipv4_request.r); if (data->ipv6_request.r) evdns_cancel_request(data->evdns_base, data->ipv6_request.r); EVDNS_UNLOCK(data->evdns_base); } dnscrypt-proxy-1.9.4/src/libevent-modified/evdns.h000644 000765 000024 00000003666 13037731714 021634 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVDNS_H_ #define _EVDNS_H_ /** @file evdns.h A dns subsystem for Libevent. The header is deprecated in Libevent 2.0 and later; please use instead. Depending on what functionality you need, you may also want to include more of the other headers. */ #include #include #include #include #endif /* _EVDNS_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/event-internal.h000644 000765 000024 00000030654 13037731714 023445 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVENT_INTERNAL_H_ #define _EVENT_INTERNAL_H_ #ifdef __cplusplus extern "C" { #endif #include "event2/event-config.h" #include #include #include "event2/event_struct.h" #include "minheap-internal.h" #include "evsignal-internal.h" #include "mm-internal.h" #include "defer-internal.h" /* map union members back */ /* mutually exclusive */ #define ev_signal_next _ev.ev_signal.ev_signal_next #define ev_io_next _ev.ev_io.ev_io_next #define ev_io_timeout _ev.ev_io.ev_timeout /* used only by signals */ #define ev_ncalls _ev.ev_signal.ev_ncalls #define ev_pncalls _ev.ev_signal.ev_pncalls /* Possible values for ev_closure in struct event. */ #define EV_CLOSURE_NONE 0 #define EV_CLOSURE_SIGNAL 1 #define EV_CLOSURE_PERSIST 2 /** Structure to define the backend of a given event_base. */ struct eventop { /** The name of this backend. */ const char *name; /** Function to set up an event_base to use this backend. It should * create a new structure holding whatever information is needed to * run the backend, and return it. The returned pointer will get * stored by event_init into the event_base.evbase field. On failure, * this function should return NULL. */ void *(*init)(struct event_base *); /** Enable reading/writing on a given fd or signal. 'events' will be * the events that we're trying to enable: one or more of EV_READ, * EV_WRITE, EV_SIGNAL, and EV_ET. 'old' will be those events that * were enabled on this fd previously. 'fdinfo' will be a structure * associated with the fd by the evmap; its size is defined by the * fdinfo field below. It will be set to 0 the first time the fd is * added. The function should return 0 on success and -1 on error. */ int (*add)(struct event_base *, evutil_socket_t fd, short old, short events, void *fdinfo); /** As "add", except 'events' contains the events we mean to disable. */ int (*del)(struct event_base *, evutil_socket_t fd, short old, short events, void *fdinfo); /** Function to implement the core of an event loop. It must see which added events are ready, and cause event_active to be called for each active event (usually via event_io_active or such). It should return 0 on success and -1 on error. */ int (*dispatch)(struct event_base *, struct timeval *); /** Function to clean up and free our data from the event_base. */ void (*dealloc)(struct event_base *); /** Flag: set if we need to reinitialize the event base after we fork. */ int need_reinit; /** Bit-array of supported event_method_features that this backend can * provide. */ enum event_method_feature features; /** Length of the extra information we should record for each fd that has one or more active events. This information is recorded as part of the evmap entry for each fd, and passed as an argument to the add and del functions above. */ size_t fdinfo_len; }; #ifdef WIN32 /* If we're on win32, then file descriptors are not nice low densely packed integers. Instead, they are pointer-like windows handles, and we want to use a hashtable instead of an array to map fds to events. */ #define EVMAP_USE_HT #endif /* #define HT_CACHE_HASH_VALS */ #ifdef EVMAP_USE_HT #include "ht-internal.h" struct event_map_entry; HT_HEAD(event_io_map, event_map_entry); #else #define event_io_map event_signal_map #endif /* Used to map signal numbers to a list of events. If EVMAP_USE_HT is not defined, this structure is also used as event_io_map, which maps fds to a list of events. */ struct event_signal_map { /* An array of evmap_io * or of evmap_signal *; empty entries are * set to NULL. */ void **entries; /* The number of entries available in entries */ int nentries; }; /* A list of events waiting on a given 'common' timeout value. Ordinarily, * events waiting for a timeout wait on a minheap. Sometimes, however, a * queue can be faster. **/ struct common_timeout_list { /* List of events currently waiting in the queue. */ struct event_list events; /* 'magic' timeval used to indicate the duration of events in this * queue. */ struct timeval duration; /* Event that triggers whenever one of the events in the queue is * ready to activate */ struct event timeout_event; /* The event_base that this timeout list is part of */ struct event_base *base; }; /** Mask used to get the real tv_usec value from a common timeout. */ #define COMMON_TIMEOUT_MICROSECONDS_MASK 0x000fffff struct event_change; /* List of 'changes' since the last call to eventop.dispatch. Only maintained * if the backend is using changesets. */ struct event_changelist { struct event_change *changes; int n_changes; int changes_size; }; #ifndef _EVENT_DISABLE_DEBUG_MODE /* Global internal flag: set to one if debug mode is on. */ extern int _event_debug_mode_on; #define EVENT_DEBUG_MODE_IS_ON() (_event_debug_mode_on) #else #define EVENT_DEBUG_MODE_IS_ON() (0) #endif struct event_base { /** Function pointers and other data to describe this event_base's * backend. */ const struct eventop *evsel; /** Pointer to backend-specific data. */ void *evbase; /** List of changes to tell backend about at next dispatch. Only used * by the O(1) backends. */ struct event_changelist changelist; /** Function pointers used to describe the backend that this event_base * uses for signals */ const struct eventop *evsigsel; /** Data to implement the common signal handelr code. */ struct evsig_info sig; /** Number of virtual events */ int virtual_event_count; /** Number of total events added to this event_base */ int event_count; /** Number of total events active in this event_base */ int event_count_active; /** Set if we should terminate the loop once we're done processing * events. */ int event_gotterm; /** Set if we should terminate the loop immediately */ int event_break; /** Set if we should start a new instance of the loop immediately. */ int event_continue; /** The currently running priority of events */ int event_running_priority; /** Set if we're running the event_base_loop function, to prevent * reentrant invocation. */ int running_loop; /* Active event management. */ /** An array of nactivequeues queues for active events (ones that * have triggered, and whose callbacks need to be called). Low * priority numbers are more important, and stall higher ones. */ struct event_list *activequeues; /** The length of the activequeues array */ int nactivequeues; /* common timeout logic */ /** An array of common_timeout_list* for all of the common timeout * values we know. */ struct common_timeout_list **common_timeout_queues; /** The number of entries used in common_timeout_queues */ int n_common_timeouts; /** The total size of common_timeout_queues. */ int n_common_timeouts_allocated; /** List of defered_cb that are active. We run these after the active * events. */ struct deferred_cb_queue defer_queue; /** Mapping from file descriptors to enabled (added) events */ struct event_io_map io; /** Mapping from signal numbers to enabled (added) events. */ struct event_signal_map sigmap; /** All events that have been enabled (added) in this event_base */ struct event_list eventqueue; /** Stored timeval; used to detect when time is running backwards. */ struct timeval event_tv; /** Priority queue of events with timeouts. */ struct min_heap timeheap; /** Stored timeval: used to avoid calling gettimeofday/clock_gettime * too often. */ struct timeval tv_cache; #if defined(_EVENT_HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) /** Difference between internal time (maybe from clock_gettime) and * gettimeofday. */ struct timeval tv_clock_diff; /** Second in which we last updated tv_clock_diff, in monotonic time. */ time_t last_updated_clock_diff; #endif #ifndef _EVENT_DISABLE_THREAD_SUPPORT /* threading support */ /** The thread currently running the event_loop for this base */ unsigned long th_owner_id; /** A lock to prevent conflicting accesses to this event_base */ void *th_base_lock; /** The event whose callback is executing right now */ struct event *current_event; /** A condition that gets signalled when we're done processing an * event with waiters on it. */ void *current_event_cond; /** Number of threads blocking on current_event_cond. */ int current_event_waiters; #endif #ifdef WIN32 /** IOCP support structure, if IOCP is enabled. */ struct event_iocp_port *iocp; #endif /** Flags that this base was configured with */ enum event_base_config_flag flags; /* Notify main thread to wake up break, etc. */ /** True if the base already has a pending notify, and we don't need * to add any more. */ int is_notify_pending; /** A socketpair used by some th_notify functions to wake up the main * thread. */ evutil_socket_t th_notify_fd[2]; /** An event used by some th_notify functions to wake up the main * thread. */ struct event th_notify; /** A function used to wake up the main thread from another thread. */ int (*th_notify_fn)(struct event_base *base); }; struct event_config_entry { TAILQ_ENTRY(event_config_entry) next; const char *avoid_method; }; /** Internal structure: describes the configuration we want for an event_base * that we're about to allocate. */ struct event_config { TAILQ_HEAD(event_configq, event_config_entry) entries; int n_cpus_hint; enum event_method_feature require_features; enum event_base_config_flag flags; }; /* Internal use only: Functions that might be missing from */ #if defined(_EVENT_HAVE_SYS_QUEUE_H) && !defined(_EVENT_HAVE_TAILQFOREACH) #ifndef TAILQ_FIRST #define TAILQ_FIRST(head) ((head)->tqh_first) #endif #ifndef TAILQ_END #define TAILQ_END(head) NULL #endif #ifndef TAILQ_NEXT #define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next) #endif #ifndef TAILQ_FOREACH #define TAILQ_FOREACH(var, head, field) \ for ((var) = TAILQ_FIRST(head); \ (var) != TAILQ_END(head); \ (var) = TAILQ_NEXT(var, field)) #endif #ifndef TAILQ_INSERT_BEFORE #define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \ (elm)->field.tqe_prev = (listelm)->field.tqe_prev; \ (elm)->field.tqe_next = (listelm); \ *(listelm)->field.tqe_prev = (elm); \ (listelm)->field.tqe_prev = &(elm)->field.tqe_next; \ } while (0) #endif #endif /* TAILQ_FOREACH */ #define N_ACTIVE_CALLBACKS(base) \ ((base)->event_count_active + (base)->defer_queue.active_count) int _evsig_set_handler(struct event_base *base, int evsignal, void (*fn)(int)); int _evsig_restore_handler(struct event_base *base, int evsignal); void event_active_nolock(struct event *ev, int res, short count); /* FIXME document. */ void event_base_add_virtual(struct event_base *base); void event_base_del_virtual(struct event_base *base); /** For debugging: unless assertions are disabled, verify the referential integrity of the internal data structures of 'base'. This operation can be expensive. Returns on success; aborts on failure. */ void event_base_assert_ok(struct event_base *base); #ifdef __cplusplus } #endif #endif /* _EVENT_INTERNAL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/event.c000644 000765 000024 00000223433 13037731714 021625 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef WIN32 #include #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #endif #include #if !defined(WIN32) && defined(_EVENT_HAVE_SYS_TIME_H) #include #endif #include #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #include #include #ifdef _EVENT_HAVE_UNISTD_H #include #endif #ifdef _EVENT_HAVE_SYS_EVENTFD_H #include #endif #include #include #include #include #include #include "event2/event.h" #include "event2/event_struct.h" #include "event2/event_compat.h" #include "event-internal.h" #include "defer-internal.h" #include "evthread-internal.h" #include "event2/thread.h" #include "event2/util.h" #include "log-internal.h" #include "evmap-internal.h" #include "iocp-internal.h" #include "changelist-internal.h" #include "ht-internal.h" #include "util-internal.h" #ifdef _EVENT_HAVE_EVENT_PORTS extern const struct eventop evportops; #endif #ifdef _EVENT_HAVE_SELECT extern const struct eventop selectops; #endif #ifdef _EVENT_HAVE_POLL extern const struct eventop pollops; #endif #ifdef _EVENT_HAVE_EPOLL extern const struct eventop epollops; #endif #ifdef _EVENT_HAVE_WORKING_KQUEUE extern const struct eventop kqops; #endif #ifdef _EVENT_HAVE_DEVPOLL extern const struct eventop devpollops; #endif #ifdef WIN32 extern const struct eventop win32ops; #endif /* Array of backends in order of preference. */ static const struct eventop *eventops[] = { #ifdef _EVENT_HAVE_EVENT_PORTS &evportops, #endif #ifdef _EVENT_HAVE_WORKING_KQUEUE &kqops, #endif #ifdef _EVENT_HAVE_EPOLL &epollops, #endif #ifdef _EVENT_HAVE_DEVPOLL &devpollops, #endif #ifdef _EVENT_HAVE_POLL &pollops, #endif #ifdef _EVENT_HAVE_SELECT &selectops, #endif #ifdef WIN32 &win32ops, #endif NULL }; /* Global state; deprecated */ struct event_base *event_global_current_base_ = NULL; #define current_base event_global_current_base_ /* Global state */ static int use_monotonic; /* Prototypes */ static inline int event_add_internal(struct event *ev, const struct timeval *tv, int tv_is_absolute); static inline int event_del_internal(struct event *ev); static void event_queue_insert(struct event_base *, struct event *, int); static void event_queue_remove(struct event_base *, struct event *, int); static int event_haveevents(struct event_base *); static int event_process_active(struct event_base *); static int timeout_next(struct event_base *, struct timeval **); static void timeout_process(struct event_base *); static void timeout_correct(struct event_base *, struct timeval *); static inline void event_signal_closure(struct event_base *, struct event *ev); static inline void event_persist_closure(struct event_base *, struct event *ev); static int evthread_notify_base(struct event_base *base); #ifndef _EVENT_DISABLE_DEBUG_MODE /* These functions implement a hashtable of which 'struct event *' structures * have been setup or added. We don't want to trust the content of the struct * event itself, since we're trying to work through cases where an event gets * clobbered or freed. Instead, we keep a hashtable indexed by the pointer. */ struct event_debug_entry { HT_ENTRY(event_debug_entry) node; const struct event *ptr; unsigned added : 1; }; static inline unsigned hash_debug_entry(const struct event_debug_entry *e) { /* We need to do this silliness to convince compilers that we * honestly mean to cast e->ptr to an integer, and discard any * part of it that doesn't fit in an unsigned. */ unsigned u = (unsigned) ((ev_uintptr_t) e->ptr); /* Our hashtable implementation is pretty sensitive to low bits, * and every struct event is over 64 bytes in size, so we can * just say >>6. */ return (u >> 6); } static inline int eq_debug_entry(const struct event_debug_entry *a, const struct event_debug_entry *b) { return a->ptr == b->ptr; } int _event_debug_mode_on = 0; /* Set if it's too late to enable event_debug_mode. */ static int event_debug_mode_too_late = 0; #ifndef _EVENT_DISABLE_THREAD_SUPPORT static void *_event_debug_map_lock = NULL; #endif static HT_HEAD(event_debug_map, event_debug_entry) global_debug_map = HT_INITIALIZER(); HT_PROTOTYPE(event_debug_map, event_debug_entry, node, hash_debug_entry, eq_debug_entry) HT_GENERATE(event_debug_map, event_debug_entry, node, hash_debug_entry, eq_debug_entry, 0.5, mm_malloc, mm_realloc, mm_free) /* Macro: record that ev is now setup (that is, ready for an add) */ #define _event_debug_note_setup(ev) do { \ if (_event_debug_mode_on) { \ struct event_debug_entry *dent,find; \ find.ptr = (ev); \ EVLOCK_LOCK(_event_debug_map_lock, 0); \ dent = HT_FIND(event_debug_map, &global_debug_map, &find); \ if (dent) { \ dent->added = 0; \ } else { \ dent = mm_malloc(sizeof(*dent)); \ if (!dent) \ event_err(1, \ "Out of memory in debugging code"); \ dent->ptr = (ev); \ dent->added = 0; \ HT_INSERT(event_debug_map, &global_debug_map, dent); \ } \ EVLOCK_UNLOCK(_event_debug_map_lock, 0); \ } \ event_debug_mode_too_late = 1; \ } while (0) /* Macro: record that ev is no longer setup */ #define _event_debug_note_teardown(ev) do { \ if (_event_debug_mode_on) { \ struct event_debug_entry *dent,find; \ find.ptr = (ev); \ EVLOCK_LOCK(_event_debug_map_lock, 0); \ dent = HT_REMOVE(event_debug_map, &global_debug_map, &find); \ if (dent) \ mm_free(dent); \ EVLOCK_UNLOCK(_event_debug_map_lock, 0); \ } \ event_debug_mode_too_late = 1; \ } while (0) /* Macro: record that ev is now added */ #define _event_debug_note_add(ev) do { \ if (_event_debug_mode_on) { \ struct event_debug_entry *dent,find; \ find.ptr = (ev); \ EVLOCK_LOCK(_event_debug_map_lock, 0); \ dent = HT_FIND(event_debug_map, &global_debug_map, &find); \ if (dent) { \ dent->added = 1; \ } else { \ event_errx(_EVENT_ERR_ABORT, \ "%s: noting an add on a non-setup event %p" \ " (events: 0x%x, fd: "EV_SOCK_FMT \ ", flags: 0x%x)", \ __func__, (ev), (ev)->ev_events, \ EV_SOCK_ARG((ev)->ev_fd), (ev)->ev_flags); \ } \ EVLOCK_UNLOCK(_event_debug_map_lock, 0); \ } \ event_debug_mode_too_late = 1; \ } while (0) /* Macro: record that ev is no longer added */ #define _event_debug_note_del(ev) do { \ if (_event_debug_mode_on) { \ struct event_debug_entry *dent,find; \ find.ptr = (ev); \ EVLOCK_LOCK(_event_debug_map_lock, 0); \ dent = HT_FIND(event_debug_map, &global_debug_map, &find); \ if (dent) { \ dent->added = 0; \ } else { \ event_errx(_EVENT_ERR_ABORT, \ "%s: noting a del on a non-setup event %p" \ " (events: 0x%x, fd: "EV_SOCK_FMT \ ", flags: 0x%x)", \ __func__, (ev), (ev)->ev_events, \ EV_SOCK_ARG((ev)->ev_fd), (ev)->ev_flags); \ } \ EVLOCK_UNLOCK(_event_debug_map_lock, 0); \ } \ event_debug_mode_too_late = 1; \ } while (0) /* Macro: assert that ev is setup (i.e., okay to add or inspect) */ #define _event_debug_assert_is_setup(ev) do { \ if (_event_debug_mode_on) { \ struct event_debug_entry *dent,find; \ find.ptr = (ev); \ EVLOCK_LOCK(_event_debug_map_lock, 0); \ dent = HT_FIND(event_debug_map, &global_debug_map, &find); \ if (!dent) { \ event_errx(_EVENT_ERR_ABORT, \ "%s called on a non-initialized event %p" \ " (events: 0x%x, fd: "EV_SOCK_FMT\ ", flags: 0x%x)", \ __func__, (ev), (ev)->ev_events, \ EV_SOCK_ARG((ev)->ev_fd), (ev)->ev_flags); \ } \ EVLOCK_UNLOCK(_event_debug_map_lock, 0); \ } \ } while (0) /* Macro: assert that ev is not added (i.e., okay to tear down or set * up again) */ #define _event_debug_assert_not_added(ev) do { \ if (_event_debug_mode_on) { \ struct event_debug_entry *dent,find; \ find.ptr = (ev); \ EVLOCK_LOCK(_event_debug_map_lock, 0); \ dent = HT_FIND(event_debug_map, &global_debug_map, &find); \ if (dent && dent->added) { \ event_errx(_EVENT_ERR_ABORT, \ "%s called on an already added event %p" \ " (events: 0x%x, fd: "EV_SOCK_FMT", " \ "flags: 0x%x)", \ __func__, (ev), (ev)->ev_events, \ EV_SOCK_ARG((ev)->ev_fd), (ev)->ev_flags); \ } \ EVLOCK_UNLOCK(_event_debug_map_lock, 0); \ } \ } while (0) #else #define _event_debug_note_setup(ev) \ ((void)0) #define _event_debug_note_teardown(ev) \ ((void)0) #define _event_debug_note_add(ev) \ ((void)0) #define _event_debug_note_del(ev) \ ((void)0) #define _event_debug_assert_is_setup(ev) \ ((void)0) #define _event_debug_assert_not_added(ev) \ ((void)0) #endif #define EVENT_BASE_ASSERT_LOCKED(base) \ EVLOCK_ASSERT_LOCKED((base)->th_base_lock) /* The first time this function is called, it sets use_monotonic to 1 * if we have a clock function that supports monotonic time */ static void detect_monotonic(void) { #if defined(_EVENT_HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) struct timespec ts; static int use_monotonic_initialized = 0; if (use_monotonic_initialized) return; if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) use_monotonic = 1; use_monotonic_initialized = 1; #endif } /* How often (in seconds) do we check for changes in wall clock time relative * to monotonic time? Set this to -1 for 'never.' */ #define CLOCK_SYNC_INTERVAL -1 /** Set 'tp' to the current time according to 'base'. We must hold the lock * on 'base'. If there is a cached time, return it. Otherwise, use * clock_gettime or gettimeofday as appropriate to find out the right time. * Return 0 on success, -1 on failure. */ static int gettime(struct event_base *base, struct timeval *tp) { EVENT_BASE_ASSERT_LOCKED(base); if (base->tv_cache.tv_sec) { *tp = base->tv_cache; return (0); } #if defined(_EVENT_HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) if (use_monotonic) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) return (-1); tp->tv_sec = ts.tv_sec; tp->tv_usec = ts.tv_nsec / 1000; if (base->last_updated_clock_diff + CLOCK_SYNC_INTERVAL < ts.tv_sec) { struct timeval tv; evutil_gettimeofday(&tv,NULL); evutil_timersub(&tv, tp, &base->tv_clock_diff); base->last_updated_clock_diff = ts.tv_sec; } return (0); } #endif return (evutil_gettimeofday(tp, NULL)); } int event_base_gettimeofday_cached(struct event_base *base, struct timeval *tv) { int r; if (!base) { base = current_base; if (!current_base) return evutil_gettimeofday(tv, NULL); } EVBASE_ACQUIRE_LOCK(base, th_base_lock); if (base->tv_cache.tv_sec == 0) { r = evutil_gettimeofday(tv, NULL); } else { #if defined(_EVENT_HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) evutil_timeradd(&base->tv_cache, &base->tv_clock_diff, tv); #else *tv = base->tv_cache; #endif r = 0; } EVBASE_RELEASE_LOCK(base, th_base_lock); return r; } /** Make 'base' have no current cached time. */ static inline void clear_time_cache(struct event_base *base) { base->tv_cache.tv_sec = 0; } /** Replace the cached time in 'base' with the current time. */ static inline void update_time_cache(struct event_base *base) { base->tv_cache.tv_sec = 0; if (!(base->flags & EVENT_BASE_FLAG_NO_CACHE_TIME)) gettime(base, &base->tv_cache); } struct event_base * event_init(void) { struct event_base *base = event_base_new_with_config(NULL); if (base == NULL) { event_errx(1, "%s: Unable to construct event_base", __func__); return NULL; } current_base = base; return (base); } struct event_base * event_base_new(void) { struct event_base *base = NULL; struct event_config *cfg = event_config_new(); if (cfg) { base = event_base_new_with_config(cfg); event_config_free(cfg); } return base; } /** Return true iff 'method' is the name of a method that 'cfg' tells us to * avoid. */ static int event_config_is_avoided_method(const struct event_config *cfg, const char *method) { struct event_config_entry *entry; TAILQ_FOREACH(entry, &cfg->entries, next) { if (entry->avoid_method != NULL && strcmp(entry->avoid_method, method) == 0) return (1); } return (0); } /** Return true iff 'method' is disabled according to the environment. */ static int event_is_method_disabled(const char *name) { char environment[64]; int i; evutil_snprintf(environment, sizeof(environment), "EVENT_NO%s", name); for (i = 8; environment[i] != '\0'; ++i) environment[i] = EVUTIL_TOUPPER(environment[i]); /* Note that evutil_getenv() ignores the environment entirely if * we're setuid */ return (evutil_getenv(environment) != NULL); } int event_base_get_features(const struct event_base *base) { return base->evsel->features; } void event_deferred_cb_queue_init(struct deferred_cb_queue *cb) { memset(cb, 0, sizeof(struct deferred_cb_queue)); TAILQ_INIT(&cb->deferred_cb_list); } /** Helper for the deferred_cb queue: wake up the event base. */ static void notify_base_cbq_callback(struct deferred_cb_queue *cb, void *baseptr) { struct event_base *base = baseptr; if (EVBASE_NEED_NOTIFY(base)) evthread_notify_base(base); } struct deferred_cb_queue * event_base_get_deferred_cb_queue(struct event_base *base) { return base ? &base->defer_queue : NULL; } void event_enable_debug_mode(void) { #ifndef _EVENT_DISABLE_DEBUG_MODE if (_event_debug_mode_on) event_errx(1, "%s was called twice!", __func__); if (event_debug_mode_too_late) event_errx(1, "%s must be called *before* creating any events " "or event_bases",__func__); _event_debug_mode_on = 1; HT_INIT(event_debug_map, &global_debug_map); #endif } #if 0 void event_disable_debug_mode(void) { struct event_debug_entry **ent, *victim; EVLOCK_LOCK(_event_debug_map_lock, 0); for (ent = HT_START(event_debug_map, &global_debug_map); ent; ) { victim = *ent; ent = HT_NEXT_RMV(event_debug_map,&global_debug_map, ent); mm_free(victim); } HT_CLEAR(event_debug_map, &global_debug_map); EVLOCK_UNLOCK(_event_debug_map_lock , 0); } #endif struct event_base * event_base_new_with_config(const struct event_config *cfg) { int i; struct event_base *base; int should_check_environment; #ifndef _EVENT_DISABLE_DEBUG_MODE event_debug_mode_too_late = 1; #endif if ((base = mm_calloc(1, sizeof(struct event_base))) == NULL) { event_warn("%s: calloc", __func__); return NULL; } detect_monotonic(); gettime(base, &base->event_tv); min_heap_ctor(&base->timeheap); TAILQ_INIT(&base->eventqueue); base->sig.ev_signal_pair[0] = -1; base->sig.ev_signal_pair[1] = -1; base->th_notify_fd[0] = -1; base->th_notify_fd[1] = -1; event_deferred_cb_queue_init(&base->defer_queue); base->defer_queue.notify_fn = notify_base_cbq_callback; base->defer_queue.notify_arg = base; if (cfg) base->flags = cfg->flags; evmap_io_initmap(&base->io); evmap_signal_initmap(&base->sigmap); event_changelist_init(&base->changelist); base->evbase = NULL; should_check_environment = !(cfg && (cfg->flags & EVENT_BASE_FLAG_IGNORE_ENV)); for (i = 0; eventops[i] && !base->evbase; i++) { if (cfg != NULL) { /* determine if this backend should be avoided */ if (event_config_is_avoided_method(cfg, eventops[i]->name)) continue; if ((eventops[i]->features & cfg->require_features) != cfg->require_features) continue; } /* also obey the environment variables */ if (should_check_environment && event_is_method_disabled(eventops[i]->name)) continue; base->evsel = eventops[i]; base->evbase = base->evsel->init(base); } if (base->evbase == NULL) { event_warnx("%s: no event mechanism available", __func__); base->evsel = NULL; event_base_free(base); return NULL; } if (evutil_getenv("EVENT_SHOW_METHOD")) event_msgx("libevent using: %s", base->evsel->name); /* allocate a single active event queue */ if (event_base_priority_init(base, 1) < 0) { event_base_free(base); return NULL; } /* prepare for threading */ #ifndef _EVENT_DISABLE_THREAD_SUPPORT if (EVTHREAD_LOCKING_ENABLED() && (!cfg || !(cfg->flags & EVENT_BASE_FLAG_NOLOCK))) { int r; EVTHREAD_ALLOC_LOCK(base->th_base_lock, EVTHREAD_LOCKTYPE_RECURSIVE); base->defer_queue.lock = base->th_base_lock; EVTHREAD_ALLOC_COND(base->current_event_cond); r = evthread_make_base_notifiable(base); if (r<0) { event_warnx("%s: Unable to make base notifiable.", __func__); event_base_free(base); return NULL; } } #endif #ifdef WIN32 if (cfg && (cfg->flags & EVENT_BASE_FLAG_STARTUP_IOCP)) event_base_start_iocp(base, cfg->n_cpus_hint); #endif return (base); } int event_base_start_iocp(struct event_base *base, int n_cpus) { #ifdef WIN32 if (base->iocp) return 0; base->iocp = event_iocp_port_launch(n_cpus); if (!base->iocp) { event_warnx("%s: Couldn't launch IOCP", __func__); return -1; } return 0; #else return -1; #endif } void event_base_stop_iocp(struct event_base *base) { #ifdef WIN32 int rv; if (!base->iocp) return; rv = event_iocp_shutdown(base->iocp, -1); EVUTIL_ASSERT(rv >= 0); base->iocp = NULL; #endif } void event_base_free(struct event_base *base) { int i, n_deleted=0; struct event *ev; /* XXXX grab the lock? If there is contention when one thread frees * the base, then the contending thread will be very sad soon. */ /* event_base_free(NULL) is how to free the current_base if we * made it with event_init and forgot to hold a reference to it. */ if (base == NULL && current_base) base = current_base; /* If we're freeing current_base, there won't be a current_base. */ if (base == current_base) current_base = NULL; /* Don't actually free NULL. */ if (base == NULL) { event_warnx("%s: no base to free", __func__); return; } /* XXX(niels) - check for internal events first */ #ifdef WIN32 event_base_stop_iocp(base); #endif /* threading fds if we have them */ if (base->th_notify_fd[0] != -1) { event_del(&base->th_notify); EVUTIL_CLOSESOCKET(base->th_notify_fd[0]); if (base->th_notify_fd[1] != -1) EVUTIL_CLOSESOCKET(base->th_notify_fd[1]); base->th_notify_fd[0] = -1; base->th_notify_fd[1] = -1; event_debug_unassign(&base->th_notify); } /* Delete all non-internal events. */ for (ev = TAILQ_FIRST(&base->eventqueue); ev; ) { struct event *next = TAILQ_NEXT(ev, ev_next); if (!(ev->ev_flags & EVLIST_INTERNAL)) { event_del(ev); ++n_deleted; } ev = next; } while ((ev = min_heap_top(&base->timeheap)) != NULL) { event_del(ev); ++n_deleted; } for (i = 0; i < base->n_common_timeouts; ++i) { struct common_timeout_list *ctl = base->common_timeout_queues[i]; event_del(&ctl->timeout_event); /* Internal; doesn't count */ event_debug_unassign(&ctl->timeout_event); for (ev = TAILQ_FIRST(&ctl->events); ev; ) { struct event *next = TAILQ_NEXT(ev, ev_timeout_pos.ev_next_with_common_timeout); if (!(ev->ev_flags & EVLIST_INTERNAL)) { event_del(ev); ++n_deleted; } ev = next; } mm_free(ctl); } if (base->common_timeout_queues) mm_free(base->common_timeout_queues); for (i = 0; i < base->nactivequeues; ++i) { for (ev = TAILQ_FIRST(&base->activequeues[i]); ev; ) { struct event *next = TAILQ_NEXT(ev, ev_active_next); if (!(ev->ev_flags & EVLIST_INTERNAL)) { event_del(ev); ++n_deleted; } ev = next; } } if (n_deleted) event_debug(("%s: %d events were still set in base", __func__, n_deleted)); if (base->evsel != NULL && base->evsel->dealloc != NULL) base->evsel->dealloc(base); for (i = 0; i < base->nactivequeues; ++i) EVUTIL_ASSERT(TAILQ_EMPTY(&base->activequeues[i])); EVUTIL_ASSERT(min_heap_empty(&base->timeheap)); min_heap_dtor(&base->timeheap); mm_free(base->activequeues); EVUTIL_ASSERT(TAILQ_EMPTY(&base->eventqueue)); evmap_io_clear(&base->io); evmap_signal_clear(&base->sigmap); event_changelist_freemem(&base->changelist); EVTHREAD_FREE_LOCK(base->th_base_lock, EVTHREAD_LOCKTYPE_RECURSIVE); EVTHREAD_FREE_COND(base->current_event_cond); mm_free(base); } /* reinitialize the event base after a fork */ int event_reinit(struct event_base *base) { const struct eventop *evsel; int res = 0; struct event *ev; int was_notifiable = 0; EVBASE_ACQUIRE_LOCK(base, th_base_lock); evsel = base->evsel; #if 0 /* Right now, reinit always takes effect, since even if the backend doesn't require it, the signal socketpair code does. XXX */ /* check if this event mechanism requires reinit */ if (!evsel->need_reinit) goto done; #endif /* prevent internal delete */ if (base->sig.ev_signal_added) { /* we cannot call event_del here because the base has * not been reinitialized yet. */ event_queue_remove(base, &base->sig.ev_signal, EVLIST_INSERTED); if (base->sig.ev_signal.ev_flags & EVLIST_ACTIVE) event_queue_remove(base, &base->sig.ev_signal, EVLIST_ACTIVE); if (base->sig.ev_signal_pair[0] != -1) EVUTIL_CLOSESOCKET(base->sig.ev_signal_pair[0]); if (base->sig.ev_signal_pair[1] != -1) EVUTIL_CLOSESOCKET(base->sig.ev_signal_pair[1]); base->sig.ev_signal_added = 0; } if (base->th_notify_fd[0] != -1) { /* we cannot call event_del here because the base has * not been reinitialized yet. */ was_notifiable = 1; event_queue_remove(base, &base->th_notify, EVLIST_INSERTED); if (base->th_notify.ev_flags & EVLIST_ACTIVE) event_queue_remove(base, &base->th_notify, EVLIST_ACTIVE); base->sig.ev_signal_added = 0; EVUTIL_CLOSESOCKET(base->th_notify_fd[0]); if (base->th_notify_fd[1] != -1) EVUTIL_CLOSESOCKET(base->th_notify_fd[1]); base->th_notify_fd[0] = -1; base->th_notify_fd[1] = -1; event_debug_unassign(&base->th_notify); } if (base->evsel->dealloc != NULL) base->evsel->dealloc(base); base->evbase = evsel->init(base); if (base->evbase == NULL) { event_errx(1, "%s: could not reinitialize event mechanism", __func__); res = -1; goto done; } event_changelist_freemem(&base->changelist); /* XXX */ evmap_io_clear(&base->io); evmap_signal_clear(&base->sigmap); TAILQ_FOREACH(ev, &base->eventqueue, ev_next) { if (ev->ev_events & (EV_READ|EV_WRITE)) { if (ev == &base->sig.ev_signal) { /* If we run into the ev_signal event, it's only * in eventqueue because some signal event was * added, which made evsig_add re-add ev_signal. * So don't double-add it. */ continue; } if (evmap_io_add(base, ev->ev_fd, ev) == -1) res = -1; } else if (ev->ev_events & EV_SIGNAL) { if (evmap_signal_add(base, (int)ev->ev_fd, ev) == -1) res = -1; } } if (was_notifiable && res == 0) res = evthread_make_base_notifiable(base); done: EVBASE_RELEASE_LOCK(base, th_base_lock); return (res); } const char ** event_get_supported_methods(void) { static const char **methods = NULL; const struct eventop **method; const char **tmp; int i = 0, k; /* count all methods */ for (method = &eventops[0]; *method != NULL; ++method) { ++i; } /* allocate one more than we need for the NULL pointer */ tmp = mm_calloc((i + 1), sizeof(char *)); if (tmp == NULL) return (NULL); /* populate the array with the supported methods */ for (k = 0, i = 0; eventops[k] != NULL; ++k) { tmp[i++] = eventops[k]->name; } tmp[i] = NULL; if (methods != NULL) mm_free((char**)methods); methods = tmp; return (methods); } struct event_config * event_config_new(void) { struct event_config *cfg = mm_calloc(1, sizeof(*cfg)); if (cfg == NULL) return (NULL); TAILQ_INIT(&cfg->entries); return (cfg); } static void event_config_entry_free(struct event_config_entry *entry) { if (entry->avoid_method != NULL) mm_free((char *)entry->avoid_method); mm_free(entry); } void event_config_free(struct event_config *cfg) { struct event_config_entry *entry; while ((entry = TAILQ_FIRST(&cfg->entries)) != NULL) { TAILQ_REMOVE(&cfg->entries, entry, next); event_config_entry_free(entry); } mm_free(cfg); } int event_config_set_flag(struct event_config *cfg, int flag) { if (!cfg) return -1; cfg->flags |= flag; return 0; } int event_config_avoid_method(struct event_config *cfg, const char *method) { struct event_config_entry *entry = mm_malloc(sizeof(*entry)); if (entry == NULL) return (-1); if ((entry->avoid_method = mm_strdup(method)) == NULL) { mm_free(entry); return (-1); } TAILQ_INSERT_TAIL(&cfg->entries, entry, next); return (0); } int event_config_require_features(struct event_config *cfg, int features) { if (!cfg) return (-1); cfg->require_features = features; return (0); } int event_config_set_num_cpus_hint(struct event_config *cfg, int cpus) { if (!cfg) return (-1); cfg->n_cpus_hint = cpus; return (0); } int event_priority_init(int npriorities) { return event_base_priority_init(current_base, npriorities); } int event_base_priority_init(struct event_base *base, int npriorities) { int i; if (N_ACTIVE_CALLBACKS(base) || npriorities < 1 || npriorities >= EVENT_MAX_PRIORITIES) return (-1); if (npriorities == base->nactivequeues) return (0); if (base->nactivequeues) { mm_free(base->activequeues); base->nactivequeues = 0; } /* Allocate our priority queues */ base->activequeues = (struct event_list *) mm_calloc(npriorities, sizeof(struct event_list)); if (base->activequeues == NULL) { event_warn("%s: calloc", __func__); return (-1); } base->nactivequeues = npriorities; for (i = 0; i < base->nactivequeues; ++i) { TAILQ_INIT(&base->activequeues[i]); } return (0); } /* Returns true iff we're currently watching any events. */ static int event_haveevents(struct event_base *base) { /* Caller must hold th_base_lock */ return (base->virtual_event_count > 0 || base->event_count > 0); } /* "closure" function called when processing active signal events */ static inline void event_signal_closure(struct event_base *base, struct event *ev) { short ncalls; int should_break; /* Allows deletes to work */ ncalls = ev->ev_ncalls; if (ncalls != 0) ev->ev_pncalls = &ncalls; EVBASE_RELEASE_LOCK(base, th_base_lock); while (ncalls) { ncalls--; ev->ev_ncalls = ncalls; if (ncalls == 0) ev->ev_pncalls = NULL; (*ev->ev_callback)(ev->ev_fd, ev->ev_res, ev->ev_arg); EVBASE_ACQUIRE_LOCK(base, th_base_lock); should_break = base->event_break; EVBASE_RELEASE_LOCK(base, th_base_lock); if (should_break) { if (ncalls != 0) ev->ev_pncalls = NULL; return; } } } /* Common timeouts are special timeouts that are handled as queues rather than * in the minheap. This is more efficient than the minheap if we happen to * know that we're going to get several thousands of timeout events all with * the same timeout value. * * Since all our timeout handling code assumes timevals can be copied, * assigned, etc, we can't use "magic pointer" to encode these common * timeouts. Searching through a list to see if every timeout is common could * also get inefficient. Instead, we take advantage of the fact that tv_usec * is 32 bits long, but only uses 20 of those bits (since it can never be over * 999999.) We use the top bits to encode 4 bites of magic number, and 8 bits * of index into the event_base's aray of common timeouts. */ #define MICROSECONDS_MASK COMMON_TIMEOUT_MICROSECONDS_MASK #define COMMON_TIMEOUT_IDX_MASK 0x0ff00000 #define COMMON_TIMEOUT_IDX_SHIFT 20 #define COMMON_TIMEOUT_MASK 0xf0000000 #define COMMON_TIMEOUT_MAGIC 0x50000000 #define COMMON_TIMEOUT_IDX(tv) \ (((tv)->tv_usec & COMMON_TIMEOUT_IDX_MASK)>>COMMON_TIMEOUT_IDX_SHIFT) /** Return true iff if 'tv' is a common timeout in 'base' */ static inline int is_common_timeout(const struct timeval *tv, const struct event_base *base) { int idx; if ((tv->tv_usec & COMMON_TIMEOUT_MASK) != COMMON_TIMEOUT_MAGIC) return 0; idx = COMMON_TIMEOUT_IDX(tv); return idx < base->n_common_timeouts; } /* True iff tv1 and tv2 have the same common-timeout index, or if neither * one is a common timeout. */ static inline int is_same_common_timeout(const struct timeval *tv1, const struct timeval *tv2) { return (tv1->tv_usec & ~MICROSECONDS_MASK) == (tv2->tv_usec & ~MICROSECONDS_MASK); } /** Requires that 'tv' is a common timeout. Return the corresponding * common_timeout_list. */ static inline struct common_timeout_list * get_common_timeout_list(struct event_base *base, const struct timeval *tv) { return base->common_timeout_queues[COMMON_TIMEOUT_IDX(tv)]; } #if 0 static inline int common_timeout_ok(const struct timeval *tv, struct event_base *base) { const struct timeval *expect = &get_common_timeout_list(base, tv)->duration; return tv->tv_sec == expect->tv_sec && tv->tv_usec == expect->tv_usec; } #endif /* Add the timeout for the first event in given common timeout list to the * event_base's minheap. */ static void common_timeout_schedule(struct common_timeout_list *ctl, const struct timeval *now, struct event *head) { struct timeval timeout = head->ev_timeout; timeout.tv_usec &= MICROSECONDS_MASK; event_add_internal(&ctl->timeout_event, &timeout, 1); } /* Callback: invoked when the timeout for a common timeout queue triggers. * This means that (at least) the first event in that queue should be run, * and the timeout should be rescheduled if there are more events. */ static void common_timeout_callback(evutil_socket_t fd, short what, void *arg) { struct timeval now; struct common_timeout_list *ctl = arg; struct event_base *base = ctl->base; struct event *ev = NULL; EVBASE_ACQUIRE_LOCK(base, th_base_lock); gettime(base, &now); while (1) { ev = TAILQ_FIRST(&ctl->events); if (!ev || ev->ev_timeout.tv_sec > now.tv_sec || (ev->ev_timeout.tv_sec == now.tv_sec && (ev->ev_timeout.tv_usec&MICROSECONDS_MASK) > now.tv_usec)) break; event_del_internal(ev); event_active_nolock(ev, EV_TIMEOUT, 1); } if (ev) common_timeout_schedule(ctl, &now, ev); EVBASE_RELEASE_LOCK(base, th_base_lock); } #define MAX_COMMON_TIMEOUTS 256 const struct timeval * event_base_init_common_timeout(struct event_base *base, const struct timeval *duration) { int i; struct timeval tv; const struct timeval *result=NULL; struct common_timeout_list *new_ctl; EVBASE_ACQUIRE_LOCK(base, th_base_lock); if (duration->tv_usec > 1000000) { memcpy(&tv, duration, sizeof(struct timeval)); if (is_common_timeout(duration, base)) tv.tv_usec &= MICROSECONDS_MASK; tv.tv_sec += tv.tv_usec / 1000000; tv.tv_usec %= 1000000; duration = &tv; } for (i = 0; i < base->n_common_timeouts; ++i) { const struct common_timeout_list *ctl = base->common_timeout_queues[i]; if (duration->tv_sec == ctl->duration.tv_sec && duration->tv_usec == (ctl->duration.tv_usec & MICROSECONDS_MASK)) { EVUTIL_ASSERT(is_common_timeout(&ctl->duration, base)); result = &ctl->duration; goto done; } } if (base->n_common_timeouts == MAX_COMMON_TIMEOUTS) { event_warnx("%s: Too many common timeouts already in use; " "we only support %d per event_base", __func__, MAX_COMMON_TIMEOUTS); goto done; } if (base->n_common_timeouts_allocated == base->n_common_timeouts) { int n = base->n_common_timeouts < 16 ? 16 : base->n_common_timeouts*2; struct common_timeout_list **newqueues = mm_realloc(base->common_timeout_queues, n*sizeof(struct common_timeout_queue *)); if (!newqueues) { event_warn("%s: realloc",__func__); goto done; } base->n_common_timeouts_allocated = n; base->common_timeout_queues = newqueues; } new_ctl = mm_calloc(1, sizeof(struct common_timeout_list)); if (!new_ctl) { event_warn("%s: calloc",__func__); goto done; } TAILQ_INIT(&new_ctl->events); new_ctl->duration.tv_sec = duration->tv_sec; new_ctl->duration.tv_usec = duration->tv_usec | COMMON_TIMEOUT_MAGIC | (base->n_common_timeouts << COMMON_TIMEOUT_IDX_SHIFT); evtimer_assign(&new_ctl->timeout_event, base, common_timeout_callback, new_ctl); new_ctl->timeout_event.ev_flags |= EVLIST_INTERNAL; event_priority_set(&new_ctl->timeout_event, 0); new_ctl->base = base; base->common_timeout_queues[base->n_common_timeouts++] = new_ctl; result = &new_ctl->duration; done: if (result) EVUTIL_ASSERT(is_common_timeout(result, base)); EVBASE_RELEASE_LOCK(base, th_base_lock); return result; } /* Closure function invoked when we're activating a persistent event. */ static inline void event_persist_closure(struct event_base *base, struct event *ev) { // Define our callback, we use this to store our callback before it's executed void (*evcb_callback)(evutil_socket_t, short, void *); // Other fields of *ev that must be stored before executing evutil_socket_t evcb_fd; short evcb_res; void *evcb_arg; /* reschedule the persistent event if we have a timeout. */ if (ev->ev_io_timeout.tv_sec || ev->ev_io_timeout.tv_usec) { /* If there was a timeout, we want it to run at an interval of * ev_io_timeout after the last time it was _scheduled_ for, * not ev_io_timeout after _now_. If it fired for another * reason, though, the timeout ought to start ticking _now_. */ struct timeval run_at, relative_to, delay, now; ev_uint32_t usec_mask = 0; EVUTIL_ASSERT(is_same_common_timeout(&ev->ev_timeout, &ev->ev_io_timeout)); gettime(base, &now); if (is_common_timeout(&ev->ev_timeout, base)) { delay = ev->ev_io_timeout; usec_mask = delay.tv_usec & ~MICROSECONDS_MASK; delay.tv_usec &= MICROSECONDS_MASK; if (ev->ev_res & EV_TIMEOUT) { relative_to = ev->ev_timeout; relative_to.tv_usec &= MICROSECONDS_MASK; } else { relative_to = now; } } else { delay = ev->ev_io_timeout; if (ev->ev_res & EV_TIMEOUT) { relative_to = ev->ev_timeout; } else { relative_to = now; } } evutil_timeradd(&relative_to, &delay, &run_at); if (evutil_timercmp(&run_at, &now, <)) { /* Looks like we missed at least one invocation due to * a clock jump, not running the event loop for a * while, really slow callbacks, or * something. Reschedule relative to now. */ evutil_timeradd(&now, &delay, &run_at); } run_at.tv_usec |= usec_mask; event_add_internal(ev, &run_at, 1); } // Save our callback before we release the lock evcb_callback = ev->ev_callback; evcb_fd = ev->ev_fd; evcb_res = ev->ev_res; evcb_arg = ev->ev_arg; // Release the lock EVBASE_RELEASE_LOCK(base, th_base_lock); // Execute the callback (evcb_callback)(evcb_fd, evcb_res, evcb_arg); } /* Helper for event_process_active to process all the events in a single queue, releasing the lock as we go. This function requires that the lock be held when it's invoked. Returns -1 if we get a signal or an event_break that means we should stop processing any active events now. Otherwise returns the number of non-internal events that we processed. */ static int event_process_active_single_queue(struct event_base *base, struct event_list *activeq) { struct event *ev; int count = 0; EVUTIL_ASSERT(activeq != NULL); for (ev = TAILQ_FIRST(activeq); ev; ev = TAILQ_FIRST(activeq)) { if (ev->ev_events & EV_PERSIST) event_queue_remove(base, ev, EVLIST_ACTIVE); else event_del_internal(ev); if (!(ev->ev_flags & EVLIST_INTERNAL)) ++count; event_debug(( "event_process_active: event: %p, %s%scall %p", ev, ev->ev_res & EV_READ ? "EV_READ " : " ", ev->ev_res & EV_WRITE ? "EV_WRITE " : " ", ev->ev_callback)); #ifndef _EVENT_DISABLE_THREAD_SUPPORT base->current_event = ev; base->current_event_waiters = 0; #endif switch (ev->ev_closure) { case EV_CLOSURE_SIGNAL: event_signal_closure(base, ev); break; case EV_CLOSURE_PERSIST: event_persist_closure(base, ev); break; default: case EV_CLOSURE_NONE: EVBASE_RELEASE_LOCK(base, th_base_lock); (*ev->ev_callback)( ev->ev_fd, ev->ev_res, ev->ev_arg); break; } EVBASE_ACQUIRE_LOCK(base, th_base_lock); #ifndef _EVENT_DISABLE_THREAD_SUPPORT base->current_event = NULL; if (base->current_event_waiters) { base->current_event_waiters = 0; EVTHREAD_COND_BROADCAST(base->current_event_cond); } #endif if (base->event_break) return -1; if (base->event_continue) break; } return count; } /* Process up to MAX_DEFERRED of the defered_cb entries in 'queue'. If *breakptr becomes set to 1, stop. Requires that we start out holding the lock on 'queue'; releases the lock around 'queue' for each deferred_cb we process. */ static int event_process_deferred_callbacks(struct deferred_cb_queue *queue, int *breakptr) { int count = 0; struct deferred_cb *cb; #define MAX_DEFERRED 16 while ((cb = TAILQ_FIRST(&queue->deferred_cb_list))) { cb->queued = 0; TAILQ_REMOVE(&queue->deferred_cb_list, cb, cb_next); --queue->active_count; UNLOCK_DEFERRED_QUEUE(queue); cb->cb(cb, cb->arg); LOCK_DEFERRED_QUEUE(queue); if (*breakptr) return -1; if (++count == MAX_DEFERRED) break; } #undef MAX_DEFERRED return count; } /* * Active events are stored in priority queues. Lower priorities are always * process before higher priorities. Low priority events can starve high * priority ones. */ static int event_process_active(struct event_base *base) { /* Caller must hold th_base_lock */ struct event_list *activeq = NULL; int i, c = 0; for (i = 0; i < base->nactivequeues; ++i) { if (TAILQ_FIRST(&base->activequeues[i]) != NULL) { base->event_running_priority = i; activeq = &base->activequeues[i]; c = event_process_active_single_queue(base, activeq); if (c < 0) { base->event_running_priority = -1; return -1; } else if (c > 0) break; /* Processed a real event; do not * consider lower-priority events */ /* If we get here, all of the events we processed * were internal. Continue. */ } } event_process_deferred_callbacks(&base->defer_queue,&base->event_break); base->event_running_priority = -1; return c; } /* * Wait continuously for events. We exit only if no events are left. */ int event_dispatch(void) { return (event_loop(0)); } int event_base_dispatch(struct event_base *event_base) { return (event_base_loop(event_base, 0)); } const char * event_base_get_method(const struct event_base *base) { EVUTIL_ASSERT(base); return (base->evsel->name); } /** Callback: used to implement event_base_loopexit by telling the event_base * that it's time to exit its loop. */ static void event_loopexit_cb(evutil_socket_t fd, short what, void *arg) { struct event_base *base = arg; base->event_gotterm = 1; } int event_loopexit(const struct timeval *tv) { return (event_once(-1, EV_TIMEOUT, event_loopexit_cb, current_base, tv)); } int event_base_loopexit(struct event_base *event_base, const struct timeval *tv) { return (event_base_once(event_base, -1, EV_TIMEOUT, event_loopexit_cb, event_base, tv)); } int event_loopbreak(void) { return (event_base_loopbreak(current_base)); } int event_base_loopbreak(struct event_base *event_base) { int r = 0; if (event_base == NULL) return (-1); EVBASE_ACQUIRE_LOCK(event_base, th_base_lock); event_base->event_break = 1; if (EVBASE_NEED_NOTIFY(event_base)) { r = evthread_notify_base(event_base); } else { r = (0); } EVBASE_RELEASE_LOCK(event_base, th_base_lock); return r; } int event_base_got_break(struct event_base *event_base) { int res; EVBASE_ACQUIRE_LOCK(event_base, th_base_lock); res = event_base->event_break; EVBASE_RELEASE_LOCK(event_base, th_base_lock); return res; } int event_base_got_exit(struct event_base *event_base) { int res; EVBASE_ACQUIRE_LOCK(event_base, th_base_lock); res = event_base->event_gotterm; EVBASE_RELEASE_LOCK(event_base, th_base_lock); return res; } /* not thread safe */ int event_loop(int flags) { return event_base_loop(current_base, flags); } int event_base_loop(struct event_base *base, int flags) { const struct eventop *evsel = base->evsel; struct timeval tv; struct timeval *tv_p; int res, done, retval = 0; /* Grab the lock. We will release it inside evsel.dispatch, and again * as we invoke user callbacks. */ EVBASE_ACQUIRE_LOCK(base, th_base_lock); if (base->running_loop) { event_warnx("%s: reentrant invocation. Only one event_base_loop" " can run on each event_base at once.", __func__); EVBASE_RELEASE_LOCK(base, th_base_lock); return -1; } base->running_loop = 1; clear_time_cache(base); if (base->sig.ev_signal_added && base->sig.ev_n_signals_added) evsig_set_base(base); done = 0; #ifndef _EVENT_DISABLE_THREAD_SUPPORT base->th_owner_id = EVTHREAD_GET_ID(); #endif base->event_gotterm = base->event_break = 0; while (!done) { base->event_continue = 0; /* Terminate the loop if we have been asked to */ if (base->event_gotterm) { break; } if (base->event_break) { break; } timeout_correct(base, &tv); tv_p = &tv; if (!N_ACTIVE_CALLBACKS(base) && !(flags & EVLOOP_NONBLOCK)) { timeout_next(base, &tv_p); } else { /* * if we have active events, we just poll new events * without waiting. */ evutil_timerclear(&tv); } /* If we have no events, we just exit */ if (!event_haveevents(base) && !N_ACTIVE_CALLBACKS(base)) { event_debug(("%s: no events registered.", __func__)); retval = 1; goto done; } /* update last old time */ gettime(base, &base->event_tv); clear_time_cache(base); res = evsel->dispatch(base, tv_p); if (res == -1) { event_debug(("%s: dispatch returned unsuccessfully.", __func__)); retval = -1; goto done; } update_time_cache(base); timeout_process(base); if (N_ACTIVE_CALLBACKS(base)) { int n = event_process_active(base); if ((flags & EVLOOP_ONCE) && N_ACTIVE_CALLBACKS(base) == 0 && n != 0) done = 1; } else if (flags & EVLOOP_NONBLOCK) done = 1; } event_debug(("%s: asked to terminate loop.", __func__)); done: clear_time_cache(base); base->running_loop = 0; EVBASE_RELEASE_LOCK(base, th_base_lock); return (retval); } /* Sets up an event for processing once */ struct event_once { struct event ev; void (*cb)(evutil_socket_t, short, void *); void *arg; }; /* One-time callback to implement event_base_once: invokes the user callback, * then deletes the allocated storage */ static void event_once_cb(evutil_socket_t fd, short events, void *arg) { struct event_once *eonce = arg; (*eonce->cb)(fd, events, eonce->arg); event_debug_unassign(&eonce->ev); mm_free(eonce); } /* not threadsafe, event scheduled once. */ int event_once(evutil_socket_t fd, short events, void (*callback)(evutil_socket_t, short, void *), void *arg, const struct timeval *tv) { return event_base_once(current_base, fd, events, callback, arg, tv); } /* Schedules an event once */ int event_base_once(struct event_base *base, evutil_socket_t fd, short events, void (*callback)(evutil_socket_t, short, void *), void *arg, const struct timeval *tv) { struct event_once *eonce; struct timeval etv; int res = 0; /* We cannot support signals that just fire once, or persistent * events. */ if (events & (EV_SIGNAL|EV_PERSIST)) return (-1); if ((eonce = mm_calloc(1, sizeof(struct event_once))) == NULL) return (-1); eonce->cb = callback; eonce->arg = arg; if (events == EV_TIMEOUT) { if (tv == NULL) { evutil_timerclear(&etv); tv = &etv; } evtimer_assign(&eonce->ev, base, event_once_cb, eonce); } else if (events & (EV_READ|EV_WRITE)) { events &= EV_READ|EV_WRITE; event_assign(&eonce->ev, base, fd, events, event_once_cb, eonce); } else { /* Bad event combination */ mm_free(eonce); return (-1); } if (res == 0) res = event_add(&eonce->ev, tv); if (res != 0) { mm_free(eonce); return (res); } return (0); } int event_assign(struct event *ev, struct event_base *base, evutil_socket_t fd, short events, void (*callback)(evutil_socket_t, short, void *), void *arg) { if (!base) base = current_base; _event_debug_assert_not_added(ev); ev->ev_base = base; ev->ev_callback = callback; ev->ev_arg = arg; ev->ev_fd = fd; ev->ev_events = events; ev->ev_res = 0; ev->ev_flags = EVLIST_INIT; ev->ev_ncalls = 0; ev->ev_pncalls = NULL; if (events & EV_SIGNAL) { if ((events & (EV_READ|EV_WRITE)) != 0) { event_warnx("%s: EV_SIGNAL is not compatible with " "EV_READ or EV_WRITE", __func__); return -1; } ev->ev_closure = EV_CLOSURE_SIGNAL; } else { if (events & EV_PERSIST) { evutil_timerclear(&ev->ev_io_timeout); ev->ev_closure = EV_CLOSURE_PERSIST; } else { ev->ev_closure = EV_CLOSURE_NONE; } } min_heap_elem_init(ev); if (base != NULL) { /* by default, we put new events into the middle priority */ ev->ev_pri = base->nactivequeues / 2; } _event_debug_note_setup(ev); return 0; } int event_base_set(struct event_base *base, struct event *ev) { /* Only innocent events may be assigned to a different base */ if (ev->ev_flags != EVLIST_INIT) return (-1); _event_debug_assert_is_setup(ev); ev->ev_base = base; ev->ev_pri = base->nactivequeues/2; return (0); } void event_set(struct event *ev, evutil_socket_t fd, short events, void (*callback)(evutil_socket_t, short, void *), void *arg) { int r; r = event_assign(ev, current_base, fd, events, callback, arg); EVUTIL_ASSERT(r == 0); } struct event * event_new(struct event_base *base, evutil_socket_t fd, short events, void (*cb)(evutil_socket_t, short, void *), void *arg) { struct event *ev; ev = mm_malloc(sizeof(struct event)); if (ev == NULL) return (NULL); if (event_assign(ev, base, fd, events, cb, arg) < 0) { mm_free(ev); return (NULL); } return (ev); } void event_free(struct event *ev) { _event_debug_assert_is_setup(ev); /* make sure that this event won't be coming back to haunt us. */ event_del(ev); _event_debug_note_teardown(ev); mm_free(ev); } void event_debug_unassign(struct event *ev) { _event_debug_assert_not_added(ev); _event_debug_note_teardown(ev); ev->ev_flags &= ~EVLIST_INIT; } /* * Set's the priority of an event - if an event is already scheduled * changing the priority is going to fail. */ int event_priority_set(struct event *ev, int pri) { _event_debug_assert_is_setup(ev); if (ev->ev_flags & EVLIST_ACTIVE) return (-1); if (pri < 0 || pri >= ev->ev_base->nactivequeues) return (-1); ev->ev_pri = pri; return (0); } /* * Checks if a specific event is pending or scheduled. */ int event_pending(const struct event *ev, short event, struct timeval *tv) { int flags = 0; if (EVUTIL_FAILURE_CHECK(ev->ev_base == NULL)) { event_warnx("%s: event has no event_base set.", __func__); return 0; } EVBASE_ACQUIRE_LOCK(ev->ev_base, th_base_lock); _event_debug_assert_is_setup(ev); if (ev->ev_flags & EVLIST_INSERTED) flags |= (ev->ev_events & (EV_READ|EV_WRITE|EV_SIGNAL)); if (ev->ev_flags & EVLIST_ACTIVE) flags |= ev->ev_res; if (ev->ev_flags & EVLIST_TIMEOUT) flags |= EV_TIMEOUT; event &= (EV_TIMEOUT|EV_READ|EV_WRITE|EV_SIGNAL); /* See if there is a timeout that we should report */ if (tv != NULL && (flags & event & EV_TIMEOUT)) { struct timeval tmp = ev->ev_timeout; tmp.tv_usec &= MICROSECONDS_MASK; #if defined(_EVENT_HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) /* correctly remamp to real time */ evutil_timeradd(&ev->ev_base->tv_clock_diff, &tmp, tv); #else *tv = tmp; #endif } EVBASE_RELEASE_LOCK(ev->ev_base, th_base_lock); return (flags & event); } int event_initialized(const struct event *ev) { if (!(ev->ev_flags & EVLIST_INIT)) return 0; return 1; } void event_get_assignment(const struct event *event, struct event_base **base_out, evutil_socket_t *fd_out, short *events_out, event_callback_fn *callback_out, void **arg_out) { _event_debug_assert_is_setup(event); if (base_out) *base_out = event->ev_base; if (fd_out) *fd_out = event->ev_fd; if (events_out) *events_out = event->ev_events; if (callback_out) *callback_out = event->ev_callback; if (arg_out) *arg_out = event->ev_arg; } size_t event_get_struct_event_size(void) { return sizeof(struct event); } evutil_socket_t event_get_fd(const struct event *ev) { _event_debug_assert_is_setup(ev); return ev->ev_fd; } struct event_base * event_get_base(const struct event *ev) { _event_debug_assert_is_setup(ev); return ev->ev_base; } short event_get_events(const struct event *ev) { _event_debug_assert_is_setup(ev); return ev->ev_events; } event_callback_fn event_get_callback(const struct event *ev) { _event_debug_assert_is_setup(ev); return ev->ev_callback; } void * event_get_callback_arg(const struct event *ev) { _event_debug_assert_is_setup(ev); return ev->ev_arg; } int event_add(struct event *ev, const struct timeval *tv) { int res; if (EVUTIL_FAILURE_CHECK(!ev->ev_base)) { event_warnx("%s: event has no event_base set.", __func__); return -1; } EVBASE_ACQUIRE_LOCK(ev->ev_base, th_base_lock); res = event_add_internal(ev, tv, 0); EVBASE_RELEASE_LOCK(ev->ev_base, th_base_lock); return (res); } /* Helper callback: wake an event_base from another thread. This version * works by writing a byte to one end of a socketpair, so that the event_base * listening on the other end will wake up as the corresponding event * triggers */ static int evthread_notify_base_default(struct event_base *base) { char buf[1]; int r; buf[0] = (char) 0; #ifdef WIN32 r = send(base->th_notify_fd[1], buf, 1, 0); #else r = write(base->th_notify_fd[1], buf, 1); #endif return (r < 0 && errno != EAGAIN) ? -1 : 0; } #if defined(_EVENT_HAVE_EVENTFD) && defined(_EVENT_HAVE_SYS_EVENTFD_H) /* Helper callback: wake an event_base from another thread. This version * assumes that you have a working eventfd() implementation. */ static int evthread_notify_base_eventfd(struct event_base *base) { ev_uint64_t msg = 1; int r; do { r = write(base->th_notify_fd[0], (void*) &msg, sizeof(msg)); } while (r < 0 && errno == EAGAIN); return (r < 0) ? -1 : 0; } #endif /** Tell the thread currently running the event_loop for base (if any) that it * needs to stop waiting in its dispatch function (if it is) and process all * active events and deferred callbacks (if there are any). */ static int evthread_notify_base(struct event_base *base) { EVENT_BASE_ASSERT_LOCKED(base); if (!base->th_notify_fn) return -1; if (base->is_notify_pending) return 0; base->is_notify_pending = 1; return base->th_notify_fn(base); } /* Implementation function to add an event. Works just like event_add, * except: 1) it requires that we have the lock. 2) if tv_is_absolute is set, * we treat tv as an absolute time, not as an interval to add to the current * time */ static inline int event_add_internal(struct event *ev, const struct timeval *tv, int tv_is_absolute) { struct event_base *base = ev->ev_base; int res = 0; int notify = 0; EVENT_BASE_ASSERT_LOCKED(base); _event_debug_assert_is_setup(ev); event_debug(( "event_add: event: %p (fd "EV_SOCK_FMT"), %s%s%scall %p", ev, EV_SOCK_ARG(ev->ev_fd), ev->ev_events & EV_READ ? "EV_READ " : " ", ev->ev_events & EV_WRITE ? "EV_WRITE " : " ", tv ? "EV_TIMEOUT " : " ", ev->ev_callback)); EVUTIL_ASSERT(!(ev->ev_flags & ~EVLIST_ALL)); /* * prepare for timeout insertion further below, if we get a * failure on any step, we should not change any state. */ if (tv != NULL && !(ev->ev_flags & EVLIST_TIMEOUT)) { if (min_heap_reserve(&base->timeheap, 1 + min_heap_size(&base->timeheap)) == -1) return (-1); /* ENOMEM == errno */ } /* If the main thread is currently executing a signal event's * callback, and we are not the main thread, then we want to wait * until the callback is done before we mess with the event, or else * we can race on ev_ncalls and ev_pncalls below. */ #ifndef _EVENT_DISABLE_THREAD_SUPPORT if (base->current_event == ev && (ev->ev_events & EV_SIGNAL) && !EVBASE_IN_THREAD(base)) { ++base->current_event_waiters; EVTHREAD_COND_WAIT(base->current_event_cond, base->th_base_lock); } #endif if ((ev->ev_events & (EV_READ|EV_WRITE|EV_SIGNAL)) && !(ev->ev_flags & (EVLIST_INSERTED|EVLIST_ACTIVE))) { if (ev->ev_events & (EV_READ|EV_WRITE)) res = evmap_io_add(base, ev->ev_fd, ev); else if (ev->ev_events & EV_SIGNAL) res = evmap_signal_add(base, (int)ev->ev_fd, ev); if (res != -1) event_queue_insert(base, ev, EVLIST_INSERTED); if (res == 1) { /* evmap says we need to notify the main thread. */ notify = 1; res = 0; } } /* * we should change the timeout state only if the previous event * addition succeeded. */ if (res != -1 && tv != NULL) { struct timeval now; int common_timeout; /* * for persistent timeout events, we remember the * timeout value and re-add the event. * * If tv_is_absolute, this was already set. */ if (ev->ev_closure == EV_CLOSURE_PERSIST && !tv_is_absolute) ev->ev_io_timeout = *tv; /* * we already reserved memory above for the case where we * are not replacing an existing timeout. */ if (ev->ev_flags & EVLIST_TIMEOUT) { /* XXX I believe this is needless. */ if (min_heap_elt_is_top(ev)) notify = 1; event_queue_remove(base, ev, EVLIST_TIMEOUT); } /* Check if it is active due to a timeout. Rescheduling * this timeout before the callback can be executed * removes it from the active list. */ if ((ev->ev_flags & EVLIST_ACTIVE) && (ev->ev_res & EV_TIMEOUT)) { if (ev->ev_events & EV_SIGNAL) { /* See if we are just active executing * this event in a loop */ if (ev->ev_ncalls && ev->ev_pncalls) { /* Abort loop */ *ev->ev_pncalls = 0; } } event_queue_remove(base, ev, EVLIST_ACTIVE); } gettime(base, &now); common_timeout = is_common_timeout(tv, base); if (tv_is_absolute) { ev->ev_timeout = *tv; } else if (common_timeout) { struct timeval tmp = *tv; tmp.tv_usec &= MICROSECONDS_MASK; evutil_timeradd(&now, &tmp, &ev->ev_timeout); ev->ev_timeout.tv_usec |= (tv->tv_usec & ~MICROSECONDS_MASK); } else { evutil_timeradd(&now, tv, &ev->ev_timeout); } event_debug(( "event_add: timeout in %d seconds, call %p", (int)tv->tv_sec, ev->ev_callback)); event_queue_insert(base, ev, EVLIST_TIMEOUT); if (common_timeout) { struct common_timeout_list *ctl = get_common_timeout_list(base, &ev->ev_timeout); if (ev == TAILQ_FIRST(&ctl->events)) { common_timeout_schedule(ctl, &now, ev); } } else { /* See if the earliest timeout is now earlier than it * was before: if so, we will need to tell the main * thread to wake up earlier than it would * otherwise. */ if (min_heap_elt_is_top(ev)) notify = 1; } } /* if we are not in the right thread, we need to wake up the loop */ if (res != -1 && notify && EVBASE_NEED_NOTIFY(base)) evthread_notify_base(base); _event_debug_note_add(ev); return (res); } int event_del(struct event *ev) { int res; if (EVUTIL_FAILURE_CHECK(!ev->ev_base)) { event_warnx("%s: event has no event_base set.", __func__); return -1; } EVBASE_ACQUIRE_LOCK(ev->ev_base, th_base_lock); res = event_del_internal(ev); EVBASE_RELEASE_LOCK(ev->ev_base, th_base_lock); return (res); } /* Helper for event_del: always called with th_base_lock held. */ static inline int event_del_internal(struct event *ev) { struct event_base *base; int res = 0, notify = 0; event_debug(("event_del: %p (fd "EV_SOCK_FMT"), callback %p", ev, EV_SOCK_ARG(ev->ev_fd), ev->ev_callback)); /* An event without a base has not been added */ if (ev->ev_base == NULL) return (-1); EVENT_BASE_ASSERT_LOCKED(ev->ev_base); /* If the main thread is currently executing this event's callback, * and we are not the main thread, then we want to wait until the * callback is done before we start removing the event. That way, * when this function returns, it will be safe to free the * user-supplied argument. */ base = ev->ev_base; #ifndef _EVENT_DISABLE_THREAD_SUPPORT if (base->current_event == ev && !EVBASE_IN_THREAD(base)) { ++base->current_event_waiters; EVTHREAD_COND_WAIT(base->current_event_cond, base->th_base_lock); } #endif EVUTIL_ASSERT(!(ev->ev_flags & ~EVLIST_ALL)); /* See if we are just active executing this event in a loop */ if (ev->ev_events & EV_SIGNAL) { if (ev->ev_ncalls && ev->ev_pncalls) { /* Abort loop */ *ev->ev_pncalls = 0; } } if (ev->ev_flags & EVLIST_TIMEOUT) { /* NOTE: We never need to notify the main thread because of a * deleted timeout event: all that could happen if we don't is * that the dispatch loop might wake up too early. But the * point of notifying the main thread _is_ to wake up the * dispatch loop early anyway, so we wouldn't gain anything by * doing it. */ event_queue_remove(base, ev, EVLIST_TIMEOUT); } if (ev->ev_flags & EVLIST_ACTIVE) event_queue_remove(base, ev, EVLIST_ACTIVE); if (ev->ev_flags & EVLIST_INSERTED) { event_queue_remove(base, ev, EVLIST_INSERTED); if (ev->ev_events & (EV_READ|EV_WRITE)) res = evmap_io_del(base, ev->ev_fd, ev); else res = evmap_signal_del(base, (int)ev->ev_fd, ev); if (res == 1) { /* evmap says we need to notify the main thread. */ notify = 1; res = 0; } } /* if we are not in the right thread, we need to wake up the loop */ if (res != -1 && notify && EVBASE_NEED_NOTIFY(base)) evthread_notify_base(base); _event_debug_note_del(ev); return (res); } void event_active(struct event *ev, int res, short ncalls) { if (EVUTIL_FAILURE_CHECK(!ev->ev_base)) { event_warnx("%s: event has no event_base set.", __func__); return; } EVBASE_ACQUIRE_LOCK(ev->ev_base, th_base_lock); _event_debug_assert_is_setup(ev); event_active_nolock(ev, res, ncalls); EVBASE_RELEASE_LOCK(ev->ev_base, th_base_lock); } void event_active_nolock(struct event *ev, int res, short ncalls) { struct event_base *base; event_debug(("event_active: %p (fd "EV_SOCK_FMT"), res %d, callback %p", ev, EV_SOCK_ARG(ev->ev_fd), (int)res, ev->ev_callback)); /* We get different kinds of events, add them together */ if (ev->ev_flags & EVLIST_ACTIVE) { ev->ev_res |= res; return; } base = ev->ev_base; EVENT_BASE_ASSERT_LOCKED(base); ev->ev_res = res; if (ev->ev_pri < base->event_running_priority) base->event_continue = 1; if (ev->ev_events & EV_SIGNAL) { #ifndef _EVENT_DISABLE_THREAD_SUPPORT if (base->current_event == ev && !EVBASE_IN_THREAD(base)) { ++base->current_event_waiters; EVTHREAD_COND_WAIT(base->current_event_cond, base->th_base_lock); } #endif ev->ev_ncalls = ncalls; ev->ev_pncalls = NULL; } event_queue_insert(base, ev, EVLIST_ACTIVE); if (EVBASE_NEED_NOTIFY(base)) evthread_notify_base(base); } void event_deferred_cb_init(struct deferred_cb *cb, deferred_cb_fn fn, void *arg) { memset(cb, 0, sizeof(struct deferred_cb)); cb->cb = fn; cb->arg = arg; } void event_deferred_cb_cancel(struct deferred_cb_queue *queue, struct deferred_cb *cb) { if (!queue) { if (current_base) queue = ¤t_base->defer_queue; else return; } LOCK_DEFERRED_QUEUE(queue); if (cb->queued) { TAILQ_REMOVE(&queue->deferred_cb_list, cb, cb_next); --queue->active_count; cb->queued = 0; } UNLOCK_DEFERRED_QUEUE(queue); } void event_deferred_cb_schedule(struct deferred_cb_queue *queue, struct deferred_cb *cb) { if (!queue) { if (current_base) queue = ¤t_base->defer_queue; else return; } LOCK_DEFERRED_QUEUE(queue); if (!cb->queued) { cb->queued = 1; TAILQ_INSERT_TAIL(&queue->deferred_cb_list, cb, cb_next); ++queue->active_count; if (queue->notify_fn) queue->notify_fn(queue, queue->notify_arg); } UNLOCK_DEFERRED_QUEUE(queue); } static int timeout_next(struct event_base *base, struct timeval **tv_p) { /* Caller must hold th_base_lock */ struct timeval now; struct event *ev; struct timeval *tv = *tv_p; int res = 0; ev = min_heap_top(&base->timeheap); if (ev == NULL) { /* if no time-based events are active wait for I/O */ *tv_p = NULL; goto out; } if (gettime(base, &now) == -1) { res = -1; goto out; } if (evutil_timercmp(&ev->ev_timeout, &now, <=)) { evutil_timerclear(tv); goto out; } evutil_timersub(&ev->ev_timeout, &now, tv); EVUTIL_ASSERT(tv->tv_sec >= 0); EVUTIL_ASSERT(tv->tv_usec >= 0); event_debug(("timeout_next: in %d seconds", (int)tv->tv_sec)); out: return (res); } /* * Determines if the time is running backwards by comparing the current time * against the last time we checked. Not needed when using clock monotonic. * If time is running backwards, we adjust the firing time of every event by * the amount that time seems to have jumped. */ static void timeout_correct(struct event_base *base, struct timeval *tv) { /* Caller must hold th_base_lock. */ struct event **pev; unsigned int size; struct timeval off; int i; if (use_monotonic) return; /* Check if time is running backwards */ gettime(base, tv); if (evutil_timercmp(tv, &base->event_tv, >=)) { base->event_tv = *tv; return; } event_debug(("%s: time is running backwards, corrected", __func__)); evutil_timersub(&base->event_tv, tv, &off); /* * We can modify the key element of the node without destroying * the minheap property, because we change every element. */ pev = base->timeheap.p; size = base->timeheap.n; for (; size-- > 0; ++pev) { struct timeval *ev_tv = &(**pev).ev_timeout; evutil_timersub(ev_tv, &off, ev_tv); } for (i=0; in_common_timeouts; ++i) { struct event *ev; struct common_timeout_list *ctl = base->common_timeout_queues[i]; TAILQ_FOREACH(ev, &ctl->events, ev_timeout_pos.ev_next_with_common_timeout) { struct timeval *ev_tv = &ev->ev_timeout; ev_tv->tv_usec &= MICROSECONDS_MASK; evutil_timersub(ev_tv, &off, ev_tv); ev_tv->tv_usec |= COMMON_TIMEOUT_MAGIC | (i<event_tv = *tv; } /* Activate every event whose timeout has elapsed. */ static void timeout_process(struct event_base *base) { /* Caller must hold lock. */ struct timeval now; struct event *ev; if (min_heap_empty(&base->timeheap)) { return; } gettime(base, &now); while ((ev = min_heap_top(&base->timeheap))) { if (evutil_timercmp(&ev->ev_timeout, &now, >)) break; /* delete this event from the I/O queues */ event_del_internal(ev); event_debug(("timeout_process: call %p", ev->ev_callback)); event_active_nolock(ev, EV_TIMEOUT, 1); } } /* Remove 'ev' from 'queue' (EVLIST_...) in base. */ static void event_queue_remove(struct event_base *base, struct event *ev, int queue) { EVENT_BASE_ASSERT_LOCKED(base); if (!(ev->ev_flags & queue)) { event_errx(1, "%s: %p(fd "EV_SOCK_FMT") not on queue %x", __func__, ev, EV_SOCK_ARG(ev->ev_fd), queue); return; } if (~ev->ev_flags & EVLIST_INTERNAL) base->event_count--; ev->ev_flags &= ~queue; switch (queue) { case EVLIST_INSERTED: TAILQ_REMOVE(&base->eventqueue, ev, ev_next); break; case EVLIST_ACTIVE: base->event_count_active--; TAILQ_REMOVE(&base->activequeues[ev->ev_pri], ev, ev_active_next); break; case EVLIST_TIMEOUT: if (is_common_timeout(&ev->ev_timeout, base)) { struct common_timeout_list *ctl = get_common_timeout_list(base, &ev->ev_timeout); TAILQ_REMOVE(&ctl->events, ev, ev_timeout_pos.ev_next_with_common_timeout); } else { min_heap_erase(&base->timeheap, ev); } break; default: event_errx(1, "%s: unknown queue %x", __func__, queue); } } /* Add 'ev' to the common timeout list in 'ev'. */ static void insert_common_timeout_inorder(struct common_timeout_list *ctl, struct event *ev) { struct event *e; /* By all logic, we should just be able to append 'ev' to the end of * ctl->events, since the timeout on each 'ev' is set to {the common * timeout} + {the time when we add the event}, and so the events * should arrive in order of their timeeouts. But just in case * there's some wacky threading issue going on, we do a search from * the end of 'ev' to find the right insertion point. */ TAILQ_FOREACH_REVERSE(e, &ctl->events, event_list, ev_timeout_pos.ev_next_with_common_timeout) { /* This timercmp is a little sneaky, since both ev and e have * magic values in tv_usec. Fortunately, they ought to have * the _same_ magic values in tv_usec. Let's assert for that. */ EVUTIL_ASSERT( is_same_common_timeout(&e->ev_timeout, &ev->ev_timeout)); if (evutil_timercmp(&ev->ev_timeout, &e->ev_timeout, >=)) { TAILQ_INSERT_AFTER(&ctl->events, e, ev, ev_timeout_pos.ev_next_with_common_timeout); return; } } TAILQ_INSERT_HEAD(&ctl->events, ev, ev_timeout_pos.ev_next_with_common_timeout); } static void event_queue_insert(struct event_base *base, struct event *ev, int queue) { EVENT_BASE_ASSERT_LOCKED(base); if (ev->ev_flags & queue) { /* Double insertion is possible for active events */ if (queue & EVLIST_ACTIVE) return; event_errx(1, "%s: %p(fd "EV_SOCK_FMT") already on queue %x", __func__, ev, EV_SOCK_ARG(ev->ev_fd), queue); return; } if (~ev->ev_flags & EVLIST_INTERNAL) base->event_count++; ev->ev_flags |= queue; switch (queue) { case EVLIST_INSERTED: TAILQ_INSERT_TAIL(&base->eventqueue, ev, ev_next); break; case EVLIST_ACTIVE: base->event_count_active++; TAILQ_INSERT_TAIL(&base->activequeues[ev->ev_pri], ev,ev_active_next); break; case EVLIST_TIMEOUT: { if (is_common_timeout(&ev->ev_timeout, base)) { struct common_timeout_list *ctl = get_common_timeout_list(base, &ev->ev_timeout); insert_common_timeout_inorder(ctl, ev); } else min_heap_push(&base->timeheap, ev); break; } default: event_errx(1, "%s: unknown queue %x", __func__, queue); } } /* Functions for debugging */ const char * event_get_version(void) { return (_EVENT_VERSION); } ev_uint32_t event_get_version_number(void) { return (_EVENT_NUMERIC_VERSION); } /* * No thread-safe interface needed - the information should be the same * for all threads. */ const char * event_get_method(void) { return (current_base->evsel->name); } #ifndef _EVENT_DISABLE_MM_REPLACEMENT static void *(*_mm_malloc_fn)(size_t sz) = NULL; static void *(*_mm_realloc_fn)(void *p, size_t sz) = NULL; static void (*_mm_free_fn)(void *p) = NULL; void * event_mm_malloc_(size_t sz) { if (_mm_malloc_fn) return _mm_malloc_fn(sz); else return malloc(sz); } void * event_mm_calloc_(size_t count, size_t size) { if (_mm_malloc_fn) { size_t sz = count * size; void *p = _mm_malloc_fn(sz); if (p) memset(p, 0, sz); return p; } else return calloc(count, size); } char * event_mm_strdup_(const char *str) { if (_mm_malloc_fn) { size_t ln = strlen(str); void *p = _mm_malloc_fn(ln+1); if (p) memcpy(p, str, ln+1); return p; } else #ifdef WIN32 return _strdup(str); #else return strdup(str); #endif } void * event_mm_realloc_(void *ptr, size_t sz) { if (_mm_realloc_fn) return _mm_realloc_fn(ptr, sz); else return realloc(ptr, sz); } void event_mm_free_(void *ptr) { if (_mm_free_fn) _mm_free_fn(ptr); else free(ptr); } void event_set_mem_functions(void *(*malloc_fn)(size_t sz), void *(*realloc_fn)(void *ptr, size_t sz), void (*free_fn)(void *ptr)) { _mm_malloc_fn = malloc_fn; _mm_realloc_fn = realloc_fn; _mm_free_fn = free_fn; } #endif #if defined(_EVENT_HAVE_EVENTFD) && defined(_EVENT_HAVE_SYS_EVENTFD_H) static void evthread_notify_drain_eventfd(evutil_socket_t fd, short what, void *arg) { ev_uint64_t msg; ev_ssize_t r; struct event_base *base = arg; r = read(fd, (void*) &msg, sizeof(msg)); if (r<0 && errno != EAGAIN) { event_sock_warn(fd, "Error reading from eventfd"); } EVBASE_ACQUIRE_LOCK(base, th_base_lock); base->is_notify_pending = 0; EVBASE_RELEASE_LOCK(base, th_base_lock); } #endif static void evthread_notify_drain_default(evutil_socket_t fd, short what, void *arg) { unsigned char buf[1024]; struct event_base *base = arg; #ifdef WIN32 while (recv(fd, (char*)buf, sizeof(buf), 0) > 0) ; #else while (read(fd, (char*)buf, sizeof(buf)) > 0) ; #endif EVBASE_ACQUIRE_LOCK(base, th_base_lock); base->is_notify_pending = 0; EVBASE_RELEASE_LOCK(base, th_base_lock); } int evthread_make_base_notifiable(struct event_base *base) { void (*cb)(evutil_socket_t, short, void *) = evthread_notify_drain_default; int (*notify)(struct event_base *) = evthread_notify_base_default; /* XXXX grab the lock here? */ if (!base) return -1; if (base->th_notify_fd[0] >= 0) return 0; #if defined(_EVENT_HAVE_EVENTFD) && defined(_EVENT_HAVE_SYS_EVENTFD_H) #ifndef EFD_CLOEXEC #define EFD_CLOEXEC 0 #endif base->th_notify_fd[0] = eventfd(0, EFD_CLOEXEC); if (base->th_notify_fd[0] >= 0) { evutil_make_socket_closeonexec(base->th_notify_fd[0]); notify = evthread_notify_base_eventfd; cb = evthread_notify_drain_eventfd; } #endif #if defined(_EVENT_HAVE_PIPE) if (base->th_notify_fd[0] < 0) { if ((base->evsel->features & EV_FEATURE_FDS)) { if (pipe(base->th_notify_fd) < 0) { event_warn("%s: pipe", __func__); } else { evutil_make_socket_closeonexec(base->th_notify_fd[0]); evutil_make_socket_closeonexec(base->th_notify_fd[1]); } } } #endif #ifdef WIN32 #define LOCAL_SOCKETPAIR_AF AF_INET #else #define LOCAL_SOCKETPAIR_AF AF_UNIX #endif if (base->th_notify_fd[0] < 0) { if (evutil_socketpair(LOCAL_SOCKETPAIR_AF, SOCK_STREAM, 0, base->th_notify_fd) == -1) { event_sock_warn(-1, "%s: socketpair", __func__); return (-1); } else { evutil_make_socket_closeonexec(base->th_notify_fd[0]); evutil_make_socket_closeonexec(base->th_notify_fd[1]); } } evutil_make_socket_nonblocking(base->th_notify_fd[0]); base->th_notify_fn = notify; /* Making the second socket nonblocking is a bit subtle, given that we ignore any EAGAIN returns when writing to it, and you don't usally do that for a nonblocking socket. But if the kernel gives us EAGAIN, then there's no need to add any more data to the buffer, since the main thread is already either about to wake up and drain it, or woken up and in the process of draining it. */ if (base->th_notify_fd[1] > 0) evutil_make_socket_nonblocking(base->th_notify_fd[1]); /* prepare an event that we can use for wakeup */ event_assign(&base->th_notify, base, base->th_notify_fd[0], EV_READ|EV_PERSIST, cb, base); /* we need to mark this as internal event */ base->th_notify.ev_flags |= EVLIST_INTERNAL; event_priority_set(&base->th_notify, 0); return event_add(&base->th_notify, NULL); } void event_base_dump_events(struct event_base *base, FILE *output) { struct event *e; int i; fprintf(output, "Inserted events:\n"); TAILQ_FOREACH(e, &base->eventqueue, ev_next) { fprintf(output, " %p [fd "EV_SOCK_FMT"]%s%s%s%s%s\n", (void*)e, EV_SOCK_ARG(e->ev_fd), (e->ev_events&EV_READ)?" Read":"", (e->ev_events&EV_WRITE)?" Write":"", (e->ev_events&EV_SIGNAL)?" Signal":"", (e->ev_events&EV_TIMEOUT)?" Timeout":"", (e->ev_events&EV_PERSIST)?" Persist":""); } for (i = 0; i < base->nactivequeues; ++i) { if (TAILQ_EMPTY(&base->activequeues[i])) continue; fprintf(output, "Active events [priority %d]:\n", i); TAILQ_FOREACH(e, &base->eventqueue, ev_next) { fprintf(output, " %p [fd "EV_SOCK_FMT"]%s%s%s%s\n", (void*)e, EV_SOCK_ARG(e->ev_fd), (e->ev_res&EV_READ)?" Read active":"", (e->ev_res&EV_WRITE)?" Write active":"", (e->ev_res&EV_SIGNAL)?" Signal active":"", (e->ev_res&EV_TIMEOUT)?" Timeout active":""); } } } void event_base_add_virtual(struct event_base *base) { EVBASE_ACQUIRE_LOCK(base, th_base_lock); base->virtual_event_count++; EVBASE_RELEASE_LOCK(base, th_base_lock); } void event_base_del_virtual(struct event_base *base) { EVBASE_ACQUIRE_LOCK(base, th_base_lock); EVUTIL_ASSERT(base->virtual_event_count > 0); base->virtual_event_count--; if (base->virtual_event_count == 0 && EVBASE_NEED_NOTIFY(base)) evthread_notify_base(base); EVBASE_RELEASE_LOCK(base, th_base_lock); } #ifndef _EVENT_DISABLE_THREAD_SUPPORT int event_global_setup_locks_(const int enable_locks) { #ifndef _EVENT_DISABLE_DEBUG_MODE EVTHREAD_SETUP_GLOBAL_LOCK(_event_debug_map_lock, 0); #endif if (evsig_global_setup_locks_(enable_locks) < 0) return -1; if (evutil_secure_rng_global_setup_locks_(enable_locks) < 0) return -1; return 0; } #endif void event_base_assert_ok(struct event_base *base) { int i; EVBASE_ACQUIRE_LOCK(base, th_base_lock); evmap_check_integrity(base); /* Check the heap property */ for (i = 1; i < (int)base->timeheap.n; ++i) { int parent = (i - 1) / 2; struct event *ev, *p_ev; ev = base->timeheap.p[i]; p_ev = base->timeheap.p[parent]; EVUTIL_ASSERT(ev->ev_flags & EV_TIMEOUT); EVUTIL_ASSERT(evutil_timercmp(&p_ev->ev_timeout, &ev->ev_timeout, <=)); EVUTIL_ASSERT(ev->ev_timeout_pos.min_heap_idx == i); } /* Check that the common timeouts are fine */ for (i = 0; i < base->n_common_timeouts; ++i) { struct common_timeout_list *ctl = base->common_timeout_queues[i]; struct event *last=NULL, *ev; TAILQ_FOREACH(ev, &ctl->events, ev_timeout_pos.ev_next_with_common_timeout) { if (last) EVUTIL_ASSERT(evutil_timercmp(&last->ev_timeout, &ev->ev_timeout, <=)); EVUTIL_ASSERT(ev->ev_flags & EV_TIMEOUT); EVUTIL_ASSERT(is_common_timeout(&ev->ev_timeout,base)); EVUTIL_ASSERT(COMMON_TIMEOUT_IDX(&ev->ev_timeout) == i); last = ev; } } EVBASE_RELEASE_LOCK(base, th_base_lock); } dnscrypt-proxy-1.9.4/src/libevent-modified/event.h000644 000765 000024 00000005310 13037731714 021622 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVENT_H_ #define _EVENT_H_ /** @file event.h A library for writing event-driven network servers. The header is deprecated in Libevent 2.0 and later; please use instead. Depending on what functionality you need, you may also want to include more of the other event2/ headers. */ #ifdef __cplusplus extern "C" { #endif #include #ifdef _EVENT_HAVE_SYS_TYPES_H #include #endif #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #ifdef _EVENT_HAVE_STDINT_H #include #endif #include /* For int types. */ #include #ifdef WIN32 #ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN #endif #include #include #undef WIN32_LEAN_AND_MEAN typedef unsigned char u_char; typedef unsigned short u_short; #endif #include #include #include #include #include #include #include #include #include #include #ifdef __cplusplus } #endif #endif /* _EVENT_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/event_iocp.c000644 000765 000024 00000016755 13037731714 022646 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos, Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _WIN32_WINNT /* Minimum required for InitializeCriticalSectionAndSpinCount */ #define _WIN32_WINNT 0x0403 #endif #include #include #include #include #include #include "event2/util.h" #include "util-internal.h" #include "iocp-internal.h" #include "log-internal.h" #include "mm-internal.h" #include "event-internal.h" #include "evthread-internal.h" #define NOTIFICATION_KEY ((ULONG_PTR)-1) void event_overlapped_init(struct event_overlapped *o, iocp_callback cb) { memset(o, 0, sizeof(struct event_overlapped)); o->cb = cb; } static void handle_entry(OVERLAPPED *o, ULONG_PTR completion_key, DWORD nBytes, int ok) { struct event_overlapped *eo = EVUTIL_UPCAST(o, struct event_overlapped, overlapped); eo->cb(eo, completion_key, nBytes, ok); } static void loop(void *_port) { struct event_iocp_port *port = _port; long ms = port->ms; HANDLE p = port->port; if (ms <= 0) ms = INFINITE; while (1) { OVERLAPPED *overlapped=NULL; ULONG_PTR key=0; DWORD bytes=0; int ok = GetQueuedCompletionStatus(p, &bytes, &key, &overlapped, ms); EnterCriticalSection(&port->lock); if (port->shutdown) { if (--port->n_live_threads == 0) ReleaseSemaphore(port->shutdownSemaphore, 1, NULL); LeaveCriticalSection(&port->lock); return; } LeaveCriticalSection(&port->lock); if (key != NOTIFICATION_KEY && overlapped) handle_entry(overlapped, key, bytes, ok); else if (!overlapped) break; } event_warnx("GetQueuedCompletionStatus exited with no event."); EnterCriticalSection(&port->lock); if (--port->n_live_threads == 0) ReleaseSemaphore(port->shutdownSemaphore, 1, NULL); LeaveCriticalSection(&port->lock); } int event_iocp_port_associate(struct event_iocp_port *port, evutil_socket_t fd, ev_uintptr_t key) { HANDLE h; h = CreateIoCompletionPort((HANDLE)fd, port->port, key, port->n_threads); if (!h) return -1; return 0; } static void * get_extension_function(SOCKET s, const GUID *which_fn) { void *ptr = NULL; DWORD bytes=0; WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER, (GUID*)which_fn, sizeof(*which_fn), &ptr, sizeof(ptr), &bytes, NULL, NULL); /* No need to detect errors here: if ptr is set, then we have a good function pointer. Otherwise, we should behave as if we had no function pointer. */ return ptr; } /* Mingw doesn't have these in its mswsock.h. The values are copied from wine.h. Perhaps if we copy them exactly, the cargo will come again. */ #ifndef WSAID_ACCEPTEX #define WSAID_ACCEPTEX \ {0xb5367df1,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}} #endif #ifndef WSAID_CONNECTEX #define WSAID_CONNECTEX \ {0x25a207b9,0xddf3,0x4660,{0x8e,0xe9,0x76,0xe5,0x8c,0x74,0x06,0x3e}} #endif #ifndef WSAID_GETACCEPTEXSOCKADDRS #define WSAID_GETACCEPTEXSOCKADDRS \ {0xb5367df2,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}} #endif static int extension_fns_initialized = 0; static void init_extension_functions(struct win32_extension_fns *ext) { const GUID acceptex = WSAID_ACCEPTEX; const GUID connectex = WSAID_CONNECTEX; const GUID getacceptexsockaddrs = WSAID_GETACCEPTEXSOCKADDRS; SOCKET s = socket(AF_INET, SOCK_STREAM, 0); if (s == INVALID_SOCKET) return; ext->AcceptEx = get_extension_function(s, &acceptex); ext->ConnectEx = get_extension_function(s, &connectex); ext->GetAcceptExSockaddrs = get_extension_function(s, &getacceptexsockaddrs); closesocket(s); extension_fns_initialized = 1; } static struct win32_extension_fns the_extension_fns; const struct win32_extension_fns * event_get_win32_extension_fns(void) { return &the_extension_fns; } #define N_CPUS_DEFAULT 2 struct event_iocp_port * event_iocp_port_launch(int n_cpus) { struct event_iocp_port *port; int i; if (!extension_fns_initialized) init_extension_functions(&the_extension_fns); if (!(port = mm_calloc(1, sizeof(struct event_iocp_port)))) return NULL; if (n_cpus <= 0) n_cpus = N_CPUS_DEFAULT; port->n_threads = n_cpus * 2; port->threads = mm_calloc(port->n_threads, sizeof(HANDLE)); if (!port->threads) goto err; port->port = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, n_cpus); port->ms = -1; if (!port->port) goto err; port->shutdownSemaphore = CreateSemaphore(NULL, 0, 1, NULL); if (!port->shutdownSemaphore) goto err; for (i=0; in_threads; ++i) { ev_uintptr_t th = _beginthread(loop, 0, port); if (th == (ev_uintptr_t)-1) goto err; port->threads[i] = (HANDLE)th; ++port->n_live_threads; } InitializeCriticalSectionAndSpinCount(&port->lock, 1000); return port; err: if (port->port) CloseHandle(port->port); if (port->threads) mm_free(port->threads); if (port->shutdownSemaphore) CloseHandle(port->shutdownSemaphore); mm_free(port); return NULL; } static void _event_iocp_port_unlock_and_free(struct event_iocp_port *port) { DeleteCriticalSection(&port->lock); CloseHandle(port->port); CloseHandle(port->shutdownSemaphore); mm_free(port->threads); mm_free(port); } static int event_iocp_notify_all(struct event_iocp_port *port) { int i, r, ok=1; for (i=0; in_threads; ++i) { r = PostQueuedCompletionStatus(port->port, 0, NOTIFICATION_KEY, NULL); if (!r) ok = 0; } return ok ? 0 : -1; } int event_iocp_shutdown(struct event_iocp_port *port, long waitMsec) { DWORD ms = INFINITE; int n; EnterCriticalSection(&port->lock); port->shutdown = 1; LeaveCriticalSection(&port->lock); event_iocp_notify_all(port); if (waitMsec >= 0) ms = waitMsec; WaitForSingleObject(port->shutdownSemaphore, ms); EnterCriticalSection(&port->lock); n = port->n_live_threads; LeaveCriticalSection(&port->lock); if (n == 0) { _event_iocp_port_unlock_and_free(port); return 0; } else { return -1; } } int event_iocp_activate_overlapped( struct event_iocp_port *port, struct event_overlapped *o, ev_uintptr_t key, ev_uint32_t n) { BOOL r; r = PostQueuedCompletionStatus(port->port, n, key, &o->overlapped); return (r==0) ? -1 : 0; } struct event_iocp_port * event_base_get_iocp(struct event_base *base) { #ifdef WIN32 return base->iocp; #else return NULL; #endif } dnscrypt-proxy-1.9.4/src/libevent-modified/event_rpcgen.py000755 000765 000024 00000154240 13037731714 023373 0ustar00jstaff000000 000000 #!/usr/bin/env python2 # # Copyright (c) 2005-2007 Niels Provos # Copyright (c) 2007-2012 Niels Provos and Nick Mathewson # All rights reserved. # # Generates marshaling code based on libevent. # TODO: # 1) use optparse to allow the strategy shell to parse options, and # to allow the instantiated factory (for the specific output language) # to parse remaining options # 2) move the globals into a class that manages execution (including the # progress outputs that space stderr at the moment) # 3) emit other languages import sys import re _NAME = "event_rpcgen.py" _VERSION = "0.1" # Globals line_count = 0 white = re.compile(r'\s+') cppcomment = re.compile(r'\/\/.*$') nonident = re.compile(r'[^a-zA-Z0-9_]') structref = re.compile(r'^struct\[([a-zA-Z_][a-zA-Z0-9_]*)\]$') structdef = re.compile(r'^struct +[a-zA-Z_][a-zA-Z0-9_]* *{$') headerdirect = [] cppdirect = [] def TranslateList(mylist, mydict): return map(lambda x: x % mydict, mylist) # Exception class for parse errors class RpcGenError(Exception): def __init__(self, why): self.why = why def __str__(self): return str(self.why) # Holds everything that makes a struct class Struct: def __init__(self, name): self._name = name self._entries = [] self._tags = {} print >>sys.stderr, ' Created struct: %s' % name def AddEntry(self, entry): if self._tags.has_key(entry.Tag()): raise RpcGenError( 'Entry "%s" duplicates tag number %d from "%s" ' 'around line %d' % (entry.Name(), entry.Tag(), self._tags[entry.Tag()], line_count)) self._entries.append(entry) self._tags[entry.Tag()] = entry.Name() print >>sys.stderr, ' Added entry: %s' % entry.Name() def Name(self): return self._name def EntryTagName(self, entry): """Creates the name inside an enumeration for distinguishing data types.""" name = "%s_%s" % (self._name, entry.Name()) return name.upper() def PrintIndented(self, file, ident, code): """Takes an array, add indentation to each entry and prints it.""" for entry in code: print >>file, '%s%s' % (ident, entry) class StructCCode(Struct): """ Knows how to generate C code for a struct """ def __init__(self, name): Struct.__init__(self, name) def PrintTags(self, file): """Prints the tag definitions for a structure.""" print >>file, '/* Tag definition for %s */' % self._name print >>file, 'enum %s_ {' % self._name.lower() for entry in self._entries: print >>file, ' %s=%d,' % (self.EntryTagName(entry), entry.Tag()) print >>file, ' %s_MAX_TAGS' % (self._name.upper()) print >>file, '};\n' def PrintForwardDeclaration(self, file): print >>file, 'struct %s;' % self._name def PrintDeclaration(self, file): print >>file, '/* Structure declaration for %s */' % self._name print >>file, 'struct %s_access_ {' % self._name for entry in self._entries: dcl = entry.AssignDeclaration('(*%s_assign)' % entry.Name()) dcl.extend( entry.GetDeclaration('(*%s_get)' % entry.Name())) if entry.Array(): dcl.extend( entry.AddDeclaration('(*%s_add)' % entry.Name())) self.PrintIndented(file, ' ', dcl) print >>file, '};\n' print >>file, 'struct %s {' % self._name print >>file, ' struct %s_access_ *base;\n' % self._name for entry in self._entries: dcl = entry.Declaration() self.PrintIndented(file, ' ', dcl) print >>file, '' for entry in self._entries: print >>file, ' ev_uint8_t %s_set;' % entry.Name() print >>file, '};\n' print >>file, \ """struct %(name)s *%(name)s_new(void); struct %(name)s *%(name)s_new_with_arg(void *); void %(name)s_free(struct %(name)s *); void %(name)s_clear(struct %(name)s *); void %(name)s_marshal(struct evbuffer *, const struct %(name)s *); int %(name)s_unmarshal(struct %(name)s *, struct evbuffer *); int %(name)s_complete(struct %(name)s *); void evtag_marshal_%(name)s(struct evbuffer *, ev_uint32_t, const struct %(name)s *); int evtag_unmarshal_%(name)s(struct evbuffer *, ev_uint32_t, struct %(name)s *);""" % { 'name' : self._name } # Write a setting function of every variable for entry in self._entries: self.PrintIndented(file, '', entry.AssignDeclaration( entry.AssignFuncName())) self.PrintIndented(file, '', entry.GetDeclaration( entry.GetFuncName())) if entry.Array(): self.PrintIndented(file, '', entry.AddDeclaration( entry.AddFuncName())) print >>file, '/* --- %s done --- */\n' % self._name def PrintCode(self, file): print >>file, ('/*\n' ' * Implementation of %s\n' ' */\n') % self._name print >>file, \ 'static struct %(name)s_access_ __%(name)s_base = {' % \ { 'name' : self._name } for entry in self._entries: self.PrintIndented(file, ' ', entry.CodeBase()) print >>file, '};\n' # Creation print >>file, ( 'struct %(name)s *\n' '%(name)s_new(void)\n' '{\n' ' return %(name)s_new_with_arg(NULL);\n' '}\n' '\n' 'struct %(name)s *\n' '%(name)s_new_with_arg(void *unused)\n' '{\n' ' struct %(name)s *tmp;\n' ' if ((tmp = malloc(sizeof(struct %(name)s))) == NULL) {\n' ' event_warn("%%s: malloc", __func__);\n' ' return (NULL);\n' ' }\n' ' tmp->base = &__%(name)s_base;\n') % { 'name' : self._name } for entry in self._entries: self.PrintIndented(file, ' ', entry.CodeInitialize('tmp')) print >>file, ' tmp->%s_set = 0;\n' % entry.Name() print >>file, ( ' return (tmp);\n' '}\n') # Adding for entry in self._entries: if entry.Array(): self.PrintIndented(file, '', entry.CodeAdd()) print >>file, '' # Assigning for entry in self._entries: self.PrintIndented(file, '', entry.CodeAssign()) print >>file, '' # Getting for entry in self._entries: self.PrintIndented(file, '', entry.CodeGet()) print >>file, '' # Clearing print >>file, ( 'void\n' '%(name)s_clear(struct %(name)s *tmp)\n' '{' ) % { 'name' : self._name } for entry in self._entries: self.PrintIndented(file, ' ', entry.CodeClear('tmp')) print >>file, '}\n' # Freeing print >>file, ( 'void\n' '%(name)s_free(struct %(name)s *tmp)\n' '{' ) % { 'name' : self._name } for entry in self._entries: self.PrintIndented(file, ' ', entry.CodeFree('tmp')) print >>file, (' free(tmp);\n' '}\n') # Marshaling print >>file, ('void\n' '%(name)s_marshal(struct evbuffer *evbuf, ' 'const struct %(name)s *tmp)' '{') % { 'name' : self._name } for entry in self._entries: indent = ' ' # Optional entries do not have to be set if entry.Optional(): indent += ' ' print >>file, ' if (tmp->%s_set) {' % entry.Name() self.PrintIndented( file, indent, entry.CodeMarshal('evbuf', self.EntryTagName(entry), entry.GetVarName('tmp'), entry.GetVarLen('tmp'))) if entry.Optional(): print >>file, ' }' print >>file, '}\n' # Unmarshaling print >>file, ('int\n' '%(name)s_unmarshal(struct %(name)s *tmp, ' ' struct evbuffer *evbuf)\n' '{\n' ' ev_uint32_t tag;\n' ' while (evbuffer_get_length(evbuf) > 0) {\n' ' if (evtag_peek(evbuf, &tag) == -1)\n' ' return (-1);\n' ' switch (tag) {\n' ) % { 'name' : self._name } for entry in self._entries: print >>file, ' case %s:\n' % self.EntryTagName(entry) if not entry.Array(): print >>file, ( ' if (tmp->%s_set)\n' ' return (-1);' ) % (entry.Name()) self.PrintIndented( file, ' ', entry.CodeUnmarshal('evbuf', self.EntryTagName(entry), entry.GetVarName('tmp'), entry.GetVarLen('tmp'))) print >>file, ( ' tmp->%s_set = 1;\n' % entry.Name() + ' break;\n' ) print >>file, ( ' default:\n' ' return -1;\n' ' }\n' ' }\n' ) # Check if it was decoded completely print >>file, ( ' if (%(name)s_complete(tmp) == -1)\n' ' return (-1);' ) % { 'name' : self._name } # Successfully decoded print >>file, ( ' return (0);\n' '}\n') # Checking if a structure has all the required data print >>file, ( 'int\n' '%(name)s_complete(struct %(name)s *msg)\n' '{' ) % { 'name' : self._name } for entry in self._entries: if not entry.Optional(): code = [ 'if (!msg->%(name)s_set)', ' return (-1);' ] code = TranslateList(code, entry.GetTranslation()) self.PrintIndented( file, ' ', code) self.PrintIndented( file, ' ', entry.CodeComplete('msg', entry.GetVarName('msg'))) print >>file, ( ' return (0);\n' '}\n' ) # Complete message unmarshaling print >>file, ( 'int\n' 'evtag_unmarshal_%(name)s(struct evbuffer *evbuf, ' 'ev_uint32_t need_tag, struct %(name)s *msg)\n' '{\n' ' ev_uint32_t tag;\n' ' int res = -1;\n' '\n' ' struct evbuffer *tmp = evbuffer_new();\n' '\n' ' if (evtag_unmarshal(evbuf, &tag, tmp) == -1' ' || tag != need_tag)\n' ' goto error;\n' '\n' ' if (%(name)s_unmarshal(msg, tmp) == -1)\n' ' goto error;\n' '\n' ' res = 0;\n' '\n' ' error:\n' ' evbuffer_free(tmp);\n' ' return (res);\n' '}\n' ) % { 'name' : self._name } # Complete message marshaling print >>file, ( 'void\n' 'evtag_marshal_%(name)s(struct evbuffer *evbuf, ev_uint32_t tag, ' 'const struct %(name)s *msg)\n' '{\n' ' struct evbuffer *_buf = evbuffer_new();\n' ' assert(_buf != NULL);\n' ' %(name)s_marshal(_buf, msg);\n' ' evtag_marshal_buffer(evbuf, tag, _buf);\n ' ' evbuffer_free(_buf);\n' '}\n' ) % { 'name' : self._name } class Entry: def __init__(self, type, name, tag): self._type = type self._name = name self._tag = int(tag) self._ctype = type self._optional = 0 self._can_be_array = 0 self._array = 0 self._line_count = -1 self._struct = None self._refname = None self._optpointer = True self._optaddarg = True def GetInitializer(self): assert 0, "Entry does not provide initializer" def SetStruct(self, struct): self._struct = struct def LineCount(self): assert self._line_count != -1 return self._line_count def SetLineCount(self, number): self._line_count = number def Array(self): return self._array def Optional(self): return self._optional def Tag(self): return self._tag def Name(self): return self._name def Type(self): return self._type def MakeArray(self, yes=1): self._array = yes def MakeOptional(self): self._optional = 1 def Verify(self): if self.Array() and not self._can_be_array: raise RpcGenError( 'Entry "%s" cannot be created as an array ' 'around line %d' % (self._name, self.LineCount())) if not self._struct: raise RpcGenError( 'Entry "%s" does not know which struct it belongs to ' 'around line %d' % (self._name, self.LineCount())) if self._optional and self._array: raise RpcGenError( 'Entry "%s" has illegal combination of optional and array ' 'around line %d' % (self._name, self.LineCount())) def GetTranslation(self, extradict = {}): mapping = { "parent_name" : self._struct.Name(), "name" : self._name, "ctype" : self._ctype, "refname" : self._refname, "optpointer" : self._optpointer and "*" or "", "optreference" : self._optpointer and "&" or "", "optaddarg" : self._optaddarg and ", const %s value" % self._ctype or "" } for (k, v) in extradict.items(): mapping[k] = v return mapping def GetVarName(self, var): return '%(var)s->%(name)s_data' % self.GetTranslation({ 'var' : var }) def GetVarLen(self, var): return 'sizeof(%s)' % self._ctype def GetFuncName(self): return '%s_%s_get' % (self._struct.Name(), self._name) def GetDeclaration(self, funcname): code = [ 'int %s(struct %s *, %s *);' % ( funcname, self._struct.Name(), self._ctype ) ] return code def CodeGet(self): code = ( 'int', '%(parent_name)s_%(name)s_get(struct %(parent_name)s *msg, ' '%(ctype)s *value)', '{', ' if (msg->%(name)s_set != 1)', ' return (-1);', ' *value = msg->%(name)s_data;', ' return (0);', '}' ) code = '\n'.join(code) code = code % self.GetTranslation() return code.split('\n') def AssignFuncName(self): return '%s_%s_assign' % (self._struct.Name(), self._name) def AddFuncName(self): return '%s_%s_add' % (self._struct.Name(), self._name) def AssignDeclaration(self, funcname): code = [ 'int %s(struct %s *, const %s);' % ( funcname, self._struct.Name(), self._ctype ) ] return code def CodeAssign(self): code = [ 'int', '%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg,' ' const %(ctype)s value)', '{', ' msg->%(name)s_set = 1;', ' msg->%(name)s_data = value;', ' return (0);', '}' ] code = '\n'.join(code) code = code % self.GetTranslation() return code.split('\n') def CodeClear(self, structname): code = [ '%s->%s_set = 0;' % (structname, self.Name()) ] return code def CodeComplete(self, structname, var_name): return [] def CodeFree(self, name): return [] def CodeBase(self): code = [ '%(parent_name)s_%(name)s_assign,', '%(parent_name)s_%(name)s_get,' ] if self.Array(): code.append('%(parent_name)s_%(name)s_add,') code = '\n'.join(code) code = code % self.GetTranslation() return code.split('\n') class EntryBytes(Entry): def __init__(self, type, name, tag, length): # Init base class Entry.__init__(self, type, name, tag) self._length = length self._ctype = 'ev_uint8_t' def GetInitializer(self): return "NULL" def GetVarLen(self, var): return '(%s)' % self._length def CodeArrayAdd(self, varname, value): # XXX: copy here return [ '%(varname)s = NULL;' % { 'varname' : varname } ] def GetDeclaration(self, funcname): code = [ 'int %s(struct %s *, %s **);' % ( funcname, self._struct.Name(), self._ctype ) ] return code def AssignDeclaration(self, funcname): code = [ 'int %s(struct %s *, const %s *);' % ( funcname, self._struct.Name(), self._ctype ) ] return code def Declaration(self): dcl = ['ev_uint8_t %s_data[%s];' % (self._name, self._length)] return dcl def CodeGet(self): name = self._name code = [ 'int', '%s_%s_get(struct %s *msg, %s **value)' % ( self._struct.Name(), name, self._struct.Name(), self._ctype), '{', ' if (msg->%s_set != 1)' % name, ' return (-1);', ' *value = msg->%s_data;' % name, ' return (0);', '}' ] return code def CodeAssign(self): name = self._name code = [ 'int', '%s_%s_assign(struct %s *msg, const %s *value)' % ( self._struct.Name(), name, self._struct.Name(), self._ctype), '{', ' msg->%s_set = 1;' % name, ' memcpy(msg->%s_data, value, %s);' % ( name, self._length), ' return (0);', '}' ] return code def CodeUnmarshal(self, buf, tag_name, var_name, var_len): code = [ 'if (evtag_unmarshal_fixed(%(buf)s, %(tag)s, ' '%(var)s, %(varlen)s) == -1) {', ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', ' return (-1);', '}' ] return TranslateList(code, self.GetTranslation({ 'var' : var_name, 'varlen' : var_len, 'buf' : buf, 'tag' : tag_name })) def CodeMarshal(self, buf, tag_name, var_name, var_len): code = ['evtag_marshal(%s, %s, %s, %s);' % ( buf, tag_name, var_name, var_len)] return code def CodeClear(self, structname): code = [ '%s->%s_set = 0;' % (structname, self.Name()), 'memset(%s->%s_data, 0, sizeof(%s->%s_data));' % ( structname, self._name, structname, self._name)] return code def CodeInitialize(self, name): code = ['memset(%s->%s_data, 0, sizeof(%s->%s_data));' % ( name, self._name, name, self._name)] return code def Verify(self): if not self._length: raise RpcGenError( 'Entry "%s" needs a length ' 'around line %d' % (self._name, self.LineCount())) Entry.Verify(self) class EntryInt(Entry): def __init__(self, type, name, tag, bits=32): # Init base class Entry.__init__(self, type, name, tag) self._can_be_array = 1 if bits == 32: self._ctype = 'ev_uint32_t' self._marshal_type = 'int' if bits == 64: self._ctype = 'ev_uint64_t' self._marshal_type = 'int64' def GetInitializer(self): return "0" def CodeArrayFree(self, var): return [] def CodeArrayAssign(self, varname, srcvar): return [ '%(varname)s = %(srcvar)s;' % { 'varname' : varname, 'srcvar' : srcvar } ] def CodeArrayAdd(self, varname, value): """Returns a new entry of this type.""" return [ '%(varname)s = %(value)s;' % { 'varname' : varname, 'value' : value } ] def CodeUnmarshal(self, buf, tag_name, var_name, var_len): code = [ 'if (evtag_unmarshal_%(ma)s(%(buf)s, %(tag)s, &%(var)s) == -1) {', ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', ' return (-1);', '}' ] code = '\n'.join(code) % self.GetTranslation({ 'ma' : self._marshal_type, 'buf' : buf, 'tag' : tag_name, 'var' : var_name }) return code.split('\n') def CodeMarshal(self, buf, tag_name, var_name, var_len): code = [ 'evtag_marshal_%s(%s, %s, %s);' % ( self._marshal_type, buf, tag_name, var_name)] return code def Declaration(self): dcl = ['%s %s_data;' % (self._ctype, self._name)] return dcl def CodeInitialize(self, name): code = ['%s->%s_data = 0;' % (name, self._name)] return code class EntryString(Entry): def __init__(self, type, name, tag): # Init base class Entry.__init__(self, type, name, tag) self._can_be_array = 1 self._ctype = 'char *' def GetInitializer(self): return "NULL" def CodeArrayFree(self, varname): code = [ 'if (%(var)s != NULL) free(%(var)s);' ] return TranslateList(code, { 'var' : varname }) def CodeArrayAssign(self, varname, srcvar): code = [ 'if (%(var)s != NULL)', ' free(%(var)s);', '%(var)s = strdup(%(srcvar)s);', 'if (%(var)s == NULL) {', ' event_warnx("%%s: strdup", __func__);', ' return (-1);', '}' ] return TranslateList(code, { 'var' : varname, 'srcvar' : srcvar }) def CodeArrayAdd(self, varname, value): code = [ 'if (%(value)s != NULL) {', ' %(var)s = strdup(%(value)s);', ' if (%(var)s == NULL) {', ' goto error;', ' }', '} else {', ' %(var)s = NULL;', '}' ] return TranslateList(code, { 'var' : varname, 'value' : value }) def GetVarLen(self, var): return 'strlen(%s)' % self.GetVarName(var) def CodeMakeInitalize(self, varname): return '%(varname)s = NULL;' % { 'varname' : varname } def CodeAssign(self): name = self._name code = """int %(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg, const %(ctype)s value) { if (msg->%(name)s_data != NULL) free(msg->%(name)s_data); if ((msg->%(name)s_data = strdup(value)) == NULL) return (-1); msg->%(name)s_set = 1; return (0); }""" % self.GetTranslation() return code.split('\n') def CodeUnmarshal(self, buf, tag_name, var_name, var_len): code = ['if (evtag_unmarshal_string(%(buf)s, %(tag)s, &%(var)s) == -1) {', ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', ' return (-1);', '}' ] code = '\n'.join(code) % self.GetTranslation({ 'buf' : buf, 'tag' : tag_name, 'var' : var_name }) return code.split('\n') def CodeMarshal(self, buf, tag_name, var_name, var_len): code = ['evtag_marshal_string(%s, %s, %s);' % ( buf, tag_name, var_name)] return code def CodeClear(self, structname): code = [ 'if (%s->%s_set == 1) {' % (structname, self.Name()), ' free(%s->%s_data);' % (structname, self.Name()), ' %s->%s_data = NULL;' % (structname, self.Name()), ' %s->%s_set = 0;' % (structname, self.Name()), '}' ] return code def CodeInitialize(self, name): code = ['%s->%s_data = NULL;' % (name, self._name)] return code def CodeFree(self, name): code = ['if (%s->%s_data != NULL)' % (name, self._name), ' free (%s->%s_data);' % (name, self._name)] return code def Declaration(self): dcl = ['char *%s_data;' % self._name] return dcl class EntryStruct(Entry): def __init__(self, type, name, tag, refname): # Init base class Entry.__init__(self, type, name, tag) self._optpointer = False self._can_be_array = 1 self._refname = refname self._ctype = 'struct %s*' % refname self._optaddarg = False def GetInitializer(self): return "NULL" def GetVarLen(self, var): return '-1' def CodeArrayAdd(self, varname, value): code = [ '%(varname)s = %(refname)s_new();', 'if (%(varname)s == NULL)', ' goto error;' ] return TranslateList(code, self.GetTranslation({ 'varname' : varname })) def CodeArrayFree(self, var): code = [ '%(refname)s_free(%(var)s);' % self.GetTranslation( { 'var' : var }) ] return code def CodeArrayAssign(self, var, srcvar): code = [ 'int had_error = 0;', 'struct evbuffer *tmp = NULL;', '%(refname)s_clear(%(var)s);', 'if ((tmp = evbuffer_new()) == NULL) {', ' event_warn("%%s: evbuffer_new()", __func__);', ' had_error = 1;', ' goto done;', '}', '%(refname)s_marshal(tmp, %(srcvar)s);', 'if (%(refname)s_unmarshal(%(var)s, tmp) == -1) {', ' event_warnx("%%s: %(refname)s_unmarshal", __func__);', ' had_error = 1;', ' goto done;', '}', 'done:' 'if (tmp != NULL)', ' evbuffer_free(tmp);', 'if (had_error) {', ' %(refname)s_clear(%(var)s);', ' return (-1);', '}' ] return TranslateList(code, self.GetTranslation({ 'var' : var, 'srcvar' : srcvar})) def CodeGet(self): name = self._name code = [ 'int', '%s_%s_get(struct %s *msg, %s *value)' % ( self._struct.Name(), name, self._struct.Name(), self._ctype), '{', ' if (msg->%s_set != 1) {' % name, ' msg->%s_data = %s_new();' % (name, self._refname), ' if (msg->%s_data == NULL)' % name, ' return (-1);', ' msg->%s_set = 1;' % name, ' }', ' *value = msg->%s_data;' % name, ' return (0);', '}' ] return code def CodeAssign(self): name = self._name code = """int %(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg, const %(ctype)s value) { struct evbuffer *tmp = NULL; if (msg->%(name)s_set) { %(refname)s_clear(msg->%(name)s_data); msg->%(name)s_set = 0; } else { msg->%(name)s_data = %(refname)s_new(); if (msg->%(name)s_data == NULL) { event_warn("%%s: %(refname)s_new()", __func__); goto error; } } if ((tmp = evbuffer_new()) == NULL) { event_warn("%%s: evbuffer_new()", __func__); goto error; } %(refname)s_marshal(tmp, value); if (%(refname)s_unmarshal(msg->%(name)s_data, tmp) == -1) { event_warnx("%%s: %(refname)s_unmarshal", __func__); goto error; } msg->%(name)s_set = 1; evbuffer_free(tmp); return (0); error: if (tmp != NULL) evbuffer_free(tmp); if (msg->%(name)s_data != NULL) { %(refname)s_free(msg->%(name)s_data); msg->%(name)s_data = NULL; } return (-1); }""" % self.GetTranslation() return code.split('\n') def CodeComplete(self, structname, var_name): code = [ 'if (%(structname)s->%(name)s_set && ' '%(refname)s_complete(%(var)s) == -1)', ' return (-1);' ] return TranslateList(code, self.GetTranslation({ 'structname' : structname, 'var' : var_name })) def CodeUnmarshal(self, buf, tag_name, var_name, var_len): code = ['%(var)s = %(refname)s_new();', 'if (%(var)s == NULL)', ' return (-1);', 'if (evtag_unmarshal_%(refname)s(%(buf)s, %(tag)s, ' '%(var)s) == -1) {', ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', ' return (-1);', '}' ] code = '\n'.join(code) % self.GetTranslation({ 'buf' : buf, 'tag' : tag_name, 'var' : var_name }) return code.split('\n') def CodeMarshal(self, buf, tag_name, var_name, var_len): code = ['evtag_marshal_%s(%s, %s, %s);' % ( self._refname, buf, tag_name, var_name)] return code def CodeClear(self, structname): code = [ 'if (%s->%s_set == 1) {' % (structname, self.Name()), ' %s_free(%s->%s_data);' % ( self._refname, structname, self.Name()), ' %s->%s_data = NULL;' % (structname, self.Name()), ' %s->%s_set = 0;' % (structname, self.Name()), '}' ] return code def CodeInitialize(self, name): code = ['%s->%s_data = NULL;' % (name, self._name)] return code def CodeFree(self, name): code = ['if (%s->%s_data != NULL)' % (name, self._name), ' %s_free(%s->%s_data);' % ( self._refname, name, self._name)] return code def Declaration(self): dcl = ['%s %s_data;' % (self._ctype, self._name)] return dcl class EntryVarBytes(Entry): def __init__(self, type, name, tag): # Init base class Entry.__init__(self, type, name, tag) self._ctype = 'ev_uint8_t *' def GetInitializer(self): return "NULL" def GetVarLen(self, var): return '%(var)s->%(name)s_length' % self.GetTranslation({ 'var' : var }) def CodeArrayAdd(self, varname, value): # xxx: copy return [ '%(varname)s = NULL;' % { 'varname' : varname } ] def GetDeclaration(self, funcname): code = [ 'int %s(struct %s *, %s *, ev_uint32_t *);' % ( funcname, self._struct.Name(), self._ctype ) ] return code def AssignDeclaration(self, funcname): code = [ 'int %s(struct %s *, const %s, ev_uint32_t);' % ( funcname, self._struct.Name(), self._ctype ) ] return code def CodeAssign(self): name = self._name code = [ 'int', '%s_%s_assign(struct %s *msg, ' 'const %s value, ev_uint32_t len)' % ( self._struct.Name(), name, self._struct.Name(), self._ctype), '{', ' if (msg->%s_data != NULL)' % name, ' free (msg->%s_data);' % name, ' msg->%s_data = malloc(len);' % name, ' if (msg->%s_data == NULL)' % name, ' return (-1);', ' msg->%s_set = 1;' % name, ' msg->%s_length = len;' % name, ' memcpy(msg->%s_data, value, len);' % name, ' return (0);', '}' ] return code def CodeGet(self): name = self._name code = [ 'int', '%s_%s_get(struct %s *msg, %s *value, ev_uint32_t *plen)' % ( self._struct.Name(), name, self._struct.Name(), self._ctype), '{', ' if (msg->%s_set != 1)' % name, ' return (-1);', ' *value = msg->%s_data;' % name, ' *plen = msg->%s_length;' % name, ' return (0);', '}' ] return code def CodeUnmarshal(self, buf, tag_name, var_name, var_len): code = ['if (evtag_payload_length(%(buf)s, &%(varlen)s) == -1)', ' return (-1);', # We do not want DoS opportunities 'if (%(varlen)s > evbuffer_get_length(%(buf)s))', ' return (-1);', 'if ((%(var)s = malloc(%(varlen)s)) == NULL)', ' return (-1);', 'if (evtag_unmarshal_fixed(%(buf)s, %(tag)s, %(var)s, ' '%(varlen)s) == -1) {', ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', ' return (-1);', '}' ] code = '\n'.join(code) % self.GetTranslation({ 'buf' : buf, 'tag' : tag_name, 'var' : var_name, 'varlen' : var_len }) return code.split('\n') def CodeMarshal(self, buf, tag_name, var_name, var_len): code = ['evtag_marshal(%s, %s, %s, %s);' % ( buf, tag_name, var_name, var_len)] return code def CodeClear(self, structname): code = [ 'if (%s->%s_set == 1) {' % (structname, self.Name()), ' free (%s->%s_data);' % (structname, self.Name()), ' %s->%s_data = NULL;' % (structname, self.Name()), ' %s->%s_length = 0;' % (structname, self.Name()), ' %s->%s_set = 0;' % (structname, self.Name()), '}' ] return code def CodeInitialize(self, name): code = ['%s->%s_data = NULL;' % (name, self._name), '%s->%s_length = 0;' % (name, self._name) ] return code def CodeFree(self, name): code = ['if (%s->%s_data != NULL)' % (name, self._name), ' free(%s->%s_data);' % (name, self._name)] return code def Declaration(self): dcl = ['ev_uint8_t *%s_data;' % self._name, 'ev_uint32_t %s_length;' % self._name] return dcl class EntryArray(Entry): def __init__(self, entry): # Init base class Entry.__init__(self, entry._type, entry._name, entry._tag) self._entry = entry self._refname = entry._refname self._ctype = self._entry._ctype self._optional = True self._optpointer = self._entry._optpointer self._optaddarg = self._entry._optaddarg # provide a new function for accessing the variable name def GetVarName(var_name): return '%(var)s->%(name)s_data[%(index)s]' % \ self._entry.GetTranslation({'var' : var_name, 'index' : self._index}) self._entry.GetVarName = GetVarName def GetInitializer(self): return "NULL" def GetVarName(self, var_name): return var_name def GetVarLen(self, var_name): return '-1' def GetDeclaration(self, funcname): """Allows direct access to elements of the array.""" code = [ 'int %(funcname)s(struct %(parent_name)s *, int, %(ctype)s *);' % self.GetTranslation({ 'funcname' : funcname }) ] return code def AssignDeclaration(self, funcname): code = [ 'int %s(struct %s *, int, const %s);' % ( funcname, self._struct.Name(), self._ctype ) ] return code def AddDeclaration(self, funcname): code = [ '%(ctype)s %(optpointer)s ' '%(funcname)s(struct %(parent_name)s *msg%(optaddarg)s);' % \ self.GetTranslation({ 'funcname' : funcname }) ] return code def CodeGet(self): code = """int %(parent_name)s_%(name)s_get(struct %(parent_name)s *msg, int offset, %(ctype)s *value) { if (!msg->%(name)s_set || offset < 0 || offset >= msg->%(name)s_length) return (-1); *value = msg->%(name)s_data[offset]; return (0); }""" % self.GetTranslation() return code.split('\n') def CodeAssign(self): code = [ 'int', '%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg, int off,', ' const %(ctype)s value)', '{', ' if (!msg->%(name)s_set || off < 0 || off >= msg->%(name)s_length)', ' return (-1);\n', ' {' ] code = TranslateList(code, self.GetTranslation()) codearrayassign = self._entry.CodeArrayAssign( 'msg->%(name)s_data[off]' % self.GetTranslation(), 'value') code += map(lambda x: ' ' + x, codearrayassign) code += TranslateList([ ' }', ' return (0);', '}' ], self.GetTranslation()) return code def CodeAdd(self): codearrayadd = self._entry.CodeArrayAdd( 'msg->%(name)s_data[msg->%(name)s_length - 1]' % self.GetTranslation(), 'value') code = [ 'static int', '%(parent_name)s_%(name)s_expand_to_hold_more(' 'struct %(parent_name)s *msg)', '{', ' int tobe_allocated = msg->%(name)s_num_allocated;', ' %(ctype)s* new_data = NULL;', ' tobe_allocated = !tobe_allocated ? 1 : tobe_allocated << 1;', ' new_data = (%(ctype)s*) realloc(msg->%(name)s_data,', ' tobe_allocated * sizeof(%(ctype)s));', ' if (new_data == NULL)', ' return -1;', ' msg->%(name)s_data = new_data;', ' msg->%(name)s_num_allocated = tobe_allocated;', ' return 0;' '}', '', '%(ctype)s %(optpointer)s', '%(parent_name)s_%(name)s_add(' 'struct %(parent_name)s *msg%(optaddarg)s)', '{', ' if (++msg->%(name)s_length >= msg->%(name)s_num_allocated) {', ' if (%(parent_name)s_%(name)s_expand_to_hold_more(msg)<0)', ' goto error;', ' }' ] code = TranslateList(code, self.GetTranslation()) code += map(lambda x: ' ' + x, codearrayadd) code += TranslateList([ ' msg->%(name)s_set = 1;', ' return %(optreference)s(msg->%(name)s_data[' 'msg->%(name)s_length - 1]);', 'error:', ' --msg->%(name)s_length;', ' return (NULL);', '}' ], self.GetTranslation()) return code def CodeComplete(self, structname, var_name): self._index = 'i' tmp = self._entry.CodeComplete(structname, self._entry.GetVarName(var_name)) # skip the whole loop if there is nothing to check if not tmp: return [] translate = self.GetTranslation({ 'structname' : structname }) code = [ '{', ' int i;', ' for (i = 0; i < %(structname)s->%(name)s_length; ++i) {' ] code = TranslateList(code, translate) code += map(lambda x: ' ' + x, tmp) code += [ ' }', '}' ] return code def CodeUnmarshal(self, buf, tag_name, var_name, var_len): translate = self.GetTranslation({ 'var' : var_name, 'buf' : buf, 'tag' : tag_name, 'init' : self._entry.GetInitializer()}) code = [ 'if (%(var)s->%(name)s_length >= %(var)s->%(name)s_num_allocated &&', ' %(parent_name)s_%(name)s_expand_to_hold_more(%(var)s) < 0) {', ' puts("HEY NOW");', ' return (-1);', '}'] # the unmarshal code directly returns code = TranslateList(code, translate) self._index = '%(var)s->%(name)s_length' % translate code += self._entry.CodeUnmarshal(buf, tag_name, self._entry.GetVarName(var_name), self._entry.GetVarLen(var_name)) code += [ '++%(var)s->%(name)s_length;' % translate ] return code def CodeMarshal(self, buf, tag_name, var_name, var_len): code = ['{', ' int i;', ' for (i = 0; i < %(var)s->%(name)s_length; ++i) {' ] self._index = 'i' code += self._entry.CodeMarshal(buf, tag_name, self._entry.GetVarName(var_name), self._entry.GetVarLen(var_name)) code += [' }', '}' ] code = "\n".join(code) % self.GetTranslation({ 'var' : var_name }) return code.split('\n') def CodeClear(self, structname): translate = self.GetTranslation({ 'structname' : structname }) codearrayfree = self._entry.CodeArrayFree( '%(structname)s->%(name)s_data[i]' % self.GetTranslation( { 'structname' : structname } )) code = [ 'if (%(structname)s->%(name)s_set == 1) {' ] if codearrayfree: code += [ ' int i;', ' for (i = 0; i < %(structname)s->%(name)s_length; ++i) {' ] code = TranslateList(code, translate) if codearrayfree: code += map(lambda x: ' ' + x, codearrayfree) code += [ ' }' ] code += TranslateList([ ' free(%(structname)s->%(name)s_data);', ' %(structname)s->%(name)s_data = NULL;', ' %(structname)s->%(name)s_set = 0;', ' %(structname)s->%(name)s_length = 0;', ' %(structname)s->%(name)s_num_allocated = 0;', '}' ], translate) return code def CodeInitialize(self, name): code = ['%s->%s_data = NULL;' % (name, self._name), '%s->%s_length = 0;' % (name, self._name), '%s->%s_num_allocated = 0;' % (name, self._name)] return code def CodeFree(self, structname): code = self.CodeClear(structname); code += TranslateList([ 'free(%(structname)s->%(name)s_data);' ], self.GetTranslation({'structname' : structname })) return code def Declaration(self): dcl = ['%s *%s_data;' % (self._ctype, self._name), 'int %s_length;' % self._name, 'int %s_num_allocated;' % self._name ] return dcl def NormalizeLine(line): global white global cppcomment line = cppcomment.sub('', line) line = line.strip() line = white.sub(' ', line) return line def ProcessOneEntry(factory, newstruct, entry): optional = 0 array = 0 entry_type = '' name = '' tag = '' tag_set = None separator = '' fixed_length = '' tokens = entry.split(' ') while tokens: token = tokens[0] tokens = tokens[1:] if not entry_type: if not optional and token == 'optional': optional = 1 continue if not array and token == 'array': array = 1 continue if not entry_type: entry_type = token continue if not name: res = re.match(r'^([^\[\]]+)(\[.*\])?$', token) if not res: raise RpcGenError( 'Cannot parse name: \"%s\" ' 'around line %d' % (entry, line_count)) name = res.group(1) fixed_length = res.group(2) if fixed_length: fixed_length = fixed_length[1:-1] continue if not separator: separator = token if separator != '=': raise RpcGenError('Expected "=" after name \"%s\" got %s' % (name, token)) continue if not tag_set: tag_set = 1 if not re.match(r'^(0x)?[0-9]+$', token): raise RpcGenError('Expected tag number: \"%s\"' % entry) tag = int(token, 0) continue raise RpcGenError('Cannot parse \"%s\"' % entry) if not tag_set: raise RpcGenError('Need tag number: \"%s\"' % entry) # Create the right entry if entry_type == 'bytes': if fixed_length: newentry = factory.EntryBytes(entry_type, name, tag, fixed_length) else: newentry = factory.EntryVarBytes(entry_type, name, tag) elif entry_type == 'int' and not fixed_length: newentry = factory.EntryInt(entry_type, name, tag) elif entry_type == 'int64' and not fixed_length: newentry = factory.EntryInt(entry_type, name, tag, bits=64) elif entry_type == 'string' and not fixed_length: newentry = factory.EntryString(entry_type, name, tag) else: res = structref.match(entry_type) if res: # References another struct defined in our file newentry = factory.EntryStruct(entry_type, name, tag, res.group(1)) else: raise RpcGenError('Bad type: "%s" in "%s"' % (entry_type, entry)) structs = [] if optional: newentry.MakeOptional() if array: newentry.MakeArray() newentry.SetStruct(newstruct) newentry.SetLineCount(line_count) newentry.Verify() if array: # We need to encapsulate this entry into a struct newname = newentry.Name()+ '_array' # Now borgify the new entry. newentry = factory.EntryArray(newentry) newentry.SetStruct(newstruct) newentry.SetLineCount(line_count) newentry.MakeArray() newstruct.AddEntry(newentry) return structs def ProcessStruct(factory, data): tokens = data.split(' ') # First three tokens are: 'struct' 'name' '{' newstruct = factory.Struct(tokens[1]) inside = ' '.join(tokens[3:-1]) tokens = inside.split(';') structs = [] for entry in tokens: entry = NormalizeLine(entry) if not entry: continue # It's possible that new structs get defined in here structs.extend(ProcessOneEntry(factory, newstruct, entry)) structs.append(newstruct) return structs def GetNextStruct(file): global line_count global cppdirect got_struct = 0 processed_lines = [] have_c_comment = 0 data = '' while 1: line = file.readline() if not line: break line_count += 1 line = line[:-1] if not have_c_comment and re.search(r'/\*', line): if re.search(r'/\*.*?\*/', line): line = re.sub(r'/\*.*?\*/', '', line) else: line = re.sub(r'/\*.*$', '', line) have_c_comment = 1 if have_c_comment: if not re.search(r'\*/', line): continue have_c_comment = 0 line = re.sub(r'^.*\*/', '', line) line = NormalizeLine(line) if not line: continue if not got_struct: if re.match(r'#include ["<].*[>"]', line): cppdirect.append(line) continue if re.match(r'^#(if( |def)|endif)', line): cppdirect.append(line) continue if re.match(r'^#define', line): headerdirect.append(line) continue if not structdef.match(line): raise RpcGenError('Missing struct on line %d: %s' % (line_count, line)) else: got_struct = 1 data += line continue # We are inside the struct tokens = line.split('}') if len(tokens) == 1: data += ' ' + line continue if len(tokens[1]): raise RpcGenError('Trailing garbage after struct on line %d' % line_count) # We found the end of the struct data += ' %s}' % tokens[0] break # Remove any comments, that might be in there data = re.sub(r'/\*.*\*/', '', data) return data def Parse(factory, file): """ Parses the input file and returns C code and corresponding header file. """ entities = [] while 1: # Just gets the whole struct nicely formatted data = GetNextStruct(file) if not data: break entities.extend(ProcessStruct(factory, data)) return entities class CCodeGenerator: def __init__(self): pass def GuardName(self, name): # Use the complete provided path to the input file, with all # non-identifier characters replaced with underscores, to # reduce the chance of a collision between guard macros. return '_' + nonident.sub('_', name).upper() + '_' def HeaderPreamble(self, name): guard = self.GuardName(name) pre = ( '/*\n' ' * Automatically generated from %s\n' ' */\n\n' '#ifndef %s\n' '#define %s\n\n' ) % ( name, guard, guard) for statement in headerdirect: pre += '%s\n' % statement if headerdirect: pre += '\n' pre += ( '#include /* for ev_uint*_t */\n' '#include \n' ) return pre def HeaderPostamble(self, name): guard = self.GuardName(name) return '#endif /* %s */' % guard def BodyPreamble(self, name, header_file): global _NAME global _VERSION slash = header_file.rfind('/') if slash != -1: header_file = header_file[slash+1:] pre = ( '/*\n' ' * Automatically generated from %s\n' ' * by %s/%s. DO NOT EDIT THIS FILE.\n' ' */\n\n' ) % (name, _NAME, _VERSION) pre += ( '#include \n' '#include \n' '#include \n' '#include \n' '#include \n' '#include \n' '#include \n\n' '#ifdef _EVENT___func__\n' '#define __func__ _EVENT___func__\n' '#endif\n\n' ) for statement in cppdirect: pre += '%s\n' % statement pre += '\n#include "%s"\n\n' % header_file pre += 'void event_warn(const char *fmt, ...);\n' pre += 'void event_warnx(const char *fmt, ...);\n\n' return pre def HeaderFilename(self, filename): return '.'.join(filename.split('.')[:-1]) + '.h' def CodeFilename(self, filename): return '.'.join(filename.split('.')[:-1]) + '.gen.c' def Struct(self, name): return StructCCode(name) def EntryBytes(self, entry_type, name, tag, fixed_length): return EntryBytes(entry_type, name, tag, fixed_length) def EntryVarBytes(self, entry_type, name, tag): return EntryVarBytes(entry_type, name, tag) def EntryInt(self, entry_type, name, tag, bits=32): return EntryInt(entry_type, name, tag, bits) def EntryString(self, entry_type, name, tag): return EntryString(entry_type, name, tag) def EntryStruct(self, entry_type, name, tag, struct_name): return EntryStruct(entry_type, name, tag, struct_name) def EntryArray(self, entry): return EntryArray(entry) class Usage(RpcGenError): def __init__(self, argv0): RpcGenError.__init__("usage: %s input.rpc [[output.h] output.c]" % argv0) class CommandLine: def __init__(self, argv): """Initialize a command-line to launch event_rpcgen, as if from a command-line with CommandLine(sys.argv). If you're calling this directly, remember to provide a dummy value for sys.argv[0] """ self.filename = None self.header_file = None self.impl_file = None self.factory = CCodeGenerator() if len(argv) < 2 or len(argv) > 4: raise Usage(argv[0]) self.filename = argv[1].replace('\\', '/') if len(argv) == 3: self.impl_file = argv[2].replace('\\', '/') if len(argv) == 4: self.header_file = argv[2].replace('\\', '/') self.impl_file = argv[3].replace('\\', '/') if not self.filename: raise Usage(argv[0]) if not self.impl_file: self.impl_file = self.factory.CodeFilename(self.filename) if not self.header_file: self.header_file = self.factory.HeaderFilename(self.impl_file) if not self.impl_file.endswith('.c'): raise RpcGenError("can only generate C implementation files") if not self.header_file.endswith('.h'): raise RpcGenError("can only generate C header files") def run(self): filename = self.filename header_file = self.header_file impl_file = self.impl_file factory = self.factory print >>sys.stderr, 'Reading \"%s\"' % filename fp = open(filename, 'r') entities = Parse(factory, fp) fp.close() print >>sys.stderr, '... creating "%s"' % header_file header_fp = open(header_file, 'w') print >>header_fp, factory.HeaderPreamble(filename) # Create forward declarations: allows other structs to reference # each other for entry in entities: entry.PrintForwardDeclaration(header_fp) print >>header_fp, '' for entry in entities: entry.PrintTags(header_fp) entry.PrintDeclaration(header_fp) print >>header_fp, factory.HeaderPostamble(filename) header_fp.close() print >>sys.stderr, '... creating "%s"' % impl_file impl_fp = open(impl_file, 'w') print >>impl_fp, factory.BodyPreamble(filename, header_file) for entry in entities: entry.PrintCode(impl_fp) impl_fp.close() if __name__ == '__main__': try: CommandLine(sys.argv).run() sys.exit(0) except RpcGenError, e: print >>sys.stderr, e sys.exit(1) except EnvironmentError, e: if e.filename and e.strerror: print >>sys.stderr, "%s: %s" % (e.filename, e.strerror) sys.exit(1) elif e.strerror: print >> sys.stderr, e.strerror sys.exit(1) else: raise dnscrypt-proxy-1.9.4/src/libevent-modified/event_tagging.c000644 000765 000024 00000034132 13037731714 023321 0ustar00jstaff000000 000000 /* * Copyright (c) 2003-2009 Niels Provos * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef _EVENT_HAVE_SYS_TYPES_H #include #endif #ifdef _EVENT_HAVE_SYS_PARAM_H #include #endif #ifdef WIN32 #define WIN32_LEAN_AND_MEAN #include #include #undef WIN32_LEAN_AND_MEAN #else #include #endif #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #ifndef WIN32 #include #endif #ifdef _EVENT_HAVE_UNISTD_H #include #endif #include #include "event2/event.h" #include "event2/tag.h" #include "event2/buffer.h" #include "log-internal.h" #include "mm-internal.h" #include "util-internal.h" /* Here's our wire format: Stream = TaggedData* TaggedData = Tag Length Data where the integer value of 'Length' is the length of 'data'. Tag = HByte* LByte where HByte is a byte with the high bit set, and LByte is a byte with the high bit clear. The integer value of the tag is taken by concatenating the lower 7 bits from all the tags. So for example, the tag 0x66 is encoded as [66], whereas the tag 0x166 is encoded as [82 66] Length = Integer Integer = NNibbles Nibble* Padding? where NNibbles is a 4-bit value encoding the number of nibbles-1, and each Nibble is 4 bits worth of encoded integer, in big-endian order. If the total encoded integer size is an odd number of nibbles, a final padding nibble with value 0 is appended. */ int evtag_decode_int(ev_uint32_t *pnumber, struct evbuffer *evbuf); int evtag_decode_int64(ev_uint64_t *pnumber, struct evbuffer *evbuf); int evtag_encode_tag(struct evbuffer *evbuf, ev_uint32_t tag); int evtag_decode_tag(ev_uint32_t *ptag, struct evbuffer *evbuf); void evtag_init(void) { } /* * We encode integers by nibbles; the first nibble contains the number * of significant nibbles - 1; this allows us to encode up to 64-bit * integers. This function is byte-order independent. * * @param number a 32-bit unsigned integer to encode * @param data a pointer to where the data should be written. Must * have at least 5 bytes free. * @return the number of bytes written into data. */ #define ENCODE_INT_INTERNAL(data, number) do { \ int off = 1, nibbles = 0; \ \ memset(data, 0, sizeof(number)+1); \ while (number) { \ if (off & 0x1) \ data[off/2] = (data[off/2] & 0xf0) | (number & 0x0f); \ else \ data[off/2] = (data[off/2] & 0x0f) | \ ((number & 0x0f) << 4); \ number >>= 4; \ off++; \ } \ \ if (off > 2) \ nibbles = off - 2; \ \ /* Off - 1 is the number of encoded nibbles */ \ data[0] = (data[0] & 0x0f) | ((nibbles & 0x0f) << 4); \ \ return ((off + 1) / 2); \ } while (0) static inline int encode_int_internal(ev_uint8_t *data, ev_uint32_t number) { ENCODE_INT_INTERNAL(data, number); } static inline int encode_int64_internal(ev_uint8_t *data, ev_uint64_t number) { ENCODE_INT_INTERNAL(data, number); } void evtag_encode_int(struct evbuffer *evbuf, ev_uint32_t number) { ev_uint8_t data[5]; int len = encode_int_internal(data, number); evbuffer_add(evbuf, data, len); } void evtag_encode_int64(struct evbuffer *evbuf, ev_uint64_t number) { ev_uint8_t data[9]; int len = encode_int64_internal(data, number); evbuffer_add(evbuf, data, len); } /* * Support variable length encoding of tags; we use the high bit in each * octet as a continuation signal. */ int evtag_encode_tag(struct evbuffer *evbuf, ev_uint32_t tag) { int bytes = 0; ev_uint8_t data[5]; memset(data, 0, sizeof(data)); do { ev_uint8_t lower = tag & 0x7f; tag >>= 7; if (tag) lower |= 0x80; data[bytes++] = lower; } while (tag); if (evbuf != NULL) evbuffer_add(evbuf, data, bytes); return (bytes); } static int decode_tag_internal(ev_uint32_t *ptag, struct evbuffer *evbuf, int dodrain) { ev_uint32_t number = 0; size_t len = evbuffer_get_length(evbuf); ev_uint8_t *data; size_t count = 0; int shift = 0, done = 0; /* * the encoding of a number is at most one byte more than its * storage size. however, it may also be much smaller. */ data = evbuffer_pullup( evbuf, len < sizeof(number) + 1 ? len : sizeof(number) + 1); if (!data) return (-1); while (count++ < len) { ev_uint8_t lower = *data++; number |= (lower & 0x7f) << shift; shift += 7; if (!(lower & 0x80)) { done = 1; break; } } if (!done) return (-1); if (dodrain) evbuffer_drain(evbuf, count); if (ptag != NULL) *ptag = number; return count > INT_MAX ? INT_MAX : (int)(count); } int evtag_decode_tag(ev_uint32_t *ptag, struct evbuffer *evbuf) { return (decode_tag_internal(ptag, evbuf, 1 /* dodrain */)); } /* * Marshal a data type, the general format is as follows: * * tag number: one byte; length: var bytes; payload: var bytes */ void evtag_marshal(struct evbuffer *evbuf, ev_uint32_t tag, const void *data, ev_uint32_t len) { evtag_encode_tag(evbuf, tag); evtag_encode_int(evbuf, len); evbuffer_add(evbuf, (void *)data, len); } void evtag_marshal_buffer(struct evbuffer *evbuf, ev_uint32_t tag, struct evbuffer *data) { evtag_encode_tag(evbuf, tag); /* XXX support more than UINT32_MAX data */ evtag_encode_int(evbuf, (ev_uint32_t)evbuffer_get_length(data)); evbuffer_add_buffer(evbuf, data); } /* Marshaling for integers */ void evtag_marshal_int(struct evbuffer *evbuf, ev_uint32_t tag, ev_uint32_t integer) { ev_uint8_t data[5]; int len = encode_int_internal(data, integer); evtag_encode_tag(evbuf, tag); evtag_encode_int(evbuf, len); evbuffer_add(evbuf, data, len); } void evtag_marshal_int64(struct evbuffer *evbuf, ev_uint32_t tag, ev_uint64_t integer) { ev_uint8_t data[9]; int len = encode_int64_internal(data, integer); evtag_encode_tag(evbuf, tag); evtag_encode_int(evbuf, len); evbuffer_add(evbuf, data, len); } void evtag_marshal_string(struct evbuffer *buf, ev_uint32_t tag, const char *string) { /* TODO support strings longer than UINT32_MAX ? */ evtag_marshal(buf, tag, string, (ev_uint32_t)strlen(string)); } void evtag_marshal_timeval(struct evbuffer *evbuf, ev_uint32_t tag, struct timeval *tv) { ev_uint8_t data[10]; int len = encode_int_internal(data, tv->tv_sec); len += encode_int_internal(data + len, tv->tv_usec); evtag_marshal(evbuf, tag, data, len); } #define DECODE_INT_INTERNAL(number, maxnibbles, pnumber, evbuf, offset) \ do { \ ev_uint8_t *data; \ ev_ssize_t len = evbuffer_get_length(evbuf) - offset; \ int nibbles = 0; \ \ if (len <= 0) \ return (-1); \ \ /* XXX(niels): faster? */ \ data = evbuffer_pullup(evbuf, offset + 1) + offset; \ if (!data) \ return (-1); \ \ nibbles = ((data[0] & 0xf0) >> 4) + 1; \ if (nibbles > maxnibbles || (nibbles >> 1) + 1 > len) \ return (-1); \ len = (nibbles >> 1) + 1; \ \ data = evbuffer_pullup(evbuf, offset + len) + offset; \ if (!data) \ return (-1); \ \ while (nibbles > 0) { \ number <<= 4; \ if (nibbles & 0x1) \ number |= data[nibbles >> 1] & 0x0f; \ else \ number |= (data[nibbles >> 1] & 0xf0) >> 4; \ nibbles--; \ } \ \ *pnumber = number; \ \ return (int)(len); \ } while (0) /* Internal: decode an integer from an evbuffer, without draining it. * Only integers up to 32-bits are supported. * * @param evbuf the buffer to read from * @param offset an index into the buffer at which we should start reading. * @param pnumber a pointer to receive the integer. * @return The length of the number as encoded, or -1 on error. */ static int decode_int_internal(ev_uint32_t *pnumber, struct evbuffer *evbuf, int offset) { ev_uint32_t number = 0; DECODE_INT_INTERNAL(number, 8, pnumber, evbuf, offset); } static int decode_int64_internal(ev_uint64_t *pnumber, struct evbuffer *evbuf, int offset) { ev_uint64_t number = 0; DECODE_INT_INTERNAL(number, 16, pnumber, evbuf, offset); } int evtag_decode_int(ev_uint32_t *pnumber, struct evbuffer *evbuf) { int res = decode_int_internal(pnumber, evbuf, 0); if (res != -1) evbuffer_drain(evbuf, res); return (res == -1 ? -1 : 0); } int evtag_decode_int64(ev_uint64_t *pnumber, struct evbuffer *evbuf) { int res = decode_int64_internal(pnumber, evbuf, 0); if (res != -1) evbuffer_drain(evbuf, res); return (res == -1 ? -1 : 0); } int evtag_peek(struct evbuffer *evbuf, ev_uint32_t *ptag) { return (decode_tag_internal(ptag, evbuf, 0 /* dodrain */)); } int evtag_peek_length(struct evbuffer *evbuf, ev_uint32_t *plength) { int res, len; len = decode_tag_internal(NULL, evbuf, 0 /* dodrain */); if (len == -1) return (-1); res = decode_int_internal(plength, evbuf, len); if (res == -1) return (-1); *plength += res + len; return (0); } int evtag_payload_length(struct evbuffer *evbuf, ev_uint32_t *plength) { int res, len; len = decode_tag_internal(NULL, evbuf, 0 /* dodrain */); if (len == -1) return (-1); res = decode_int_internal(plength, evbuf, len); if (res == -1) return (-1); return (0); } /* just unmarshals the header and returns the length of the remaining data */ int evtag_unmarshal_header(struct evbuffer *evbuf, ev_uint32_t *ptag) { ev_uint32_t len; if (decode_tag_internal(ptag, evbuf, 1 /* dodrain */) == -1) return (-1); if (evtag_decode_int(&len, evbuf) == -1) return (-1); if (evbuffer_get_length(evbuf) < len) return (-1); return (len); } int evtag_consume(struct evbuffer *evbuf) { int len; if ((len = evtag_unmarshal_header(evbuf, NULL)) == -1) return (-1); evbuffer_drain(evbuf, len); return (0); } /* Reads the data type from an event buffer */ int evtag_unmarshal(struct evbuffer *src, ev_uint32_t *ptag, struct evbuffer *dst) { int len; if ((len = evtag_unmarshal_header(src, ptag)) == -1) return (-1); if (evbuffer_add(dst, evbuffer_pullup(src, len), len) == -1) return (-1); evbuffer_drain(src, len); return (len); } /* Marshaling for integers */ int evtag_unmarshal_int(struct evbuffer *evbuf, ev_uint32_t need_tag, ev_uint32_t *pinteger) { ev_uint32_t tag; ev_uint32_t len; int result; if (decode_tag_internal(&tag, evbuf, 1 /* dodrain */) == -1) return (-1); if (need_tag != tag) return (-1); if (evtag_decode_int(&len, evbuf) == -1) return (-1); if (evbuffer_get_length(evbuf) < len) return (-1); result = decode_int_internal(pinteger, evbuf, 0); evbuffer_drain(evbuf, len); if (result < 0 || (size_t)result > len) /* XXX Should this be != rather than > ?*/ return (-1); else return result; } int evtag_unmarshal_int64(struct evbuffer *evbuf, ev_uint32_t need_tag, ev_uint64_t *pinteger) { ev_uint32_t tag; ev_uint32_t len; int result; if (decode_tag_internal(&tag, evbuf, 1 /* dodrain */) == -1) return (-1); if (need_tag != tag) return (-1); if (evtag_decode_int(&len, evbuf) == -1) return (-1); if (evbuffer_get_length(evbuf) < len) return (-1); result = decode_int64_internal(pinteger, evbuf, 0); evbuffer_drain(evbuf, len); if (result < 0 || (size_t)result > len) /* XXX Should this be != rather than > ?*/ return (-1); else return result; } /* Unmarshal a fixed length tag */ int evtag_unmarshal_fixed(struct evbuffer *src, ev_uint32_t need_tag, void *data, size_t len) { ev_uint32_t tag; int tag_len; /* Now unmarshal a tag and check that it matches the tag we want */ if ((tag_len = evtag_unmarshal_header(src, &tag)) < 0 || tag != need_tag) return (-1); if ((size_t)tag_len != len) return (-1); evbuffer_remove(src, data, len); return (0); } int evtag_unmarshal_string(struct evbuffer *evbuf, ev_uint32_t need_tag, char **pstring) { ev_uint32_t tag; int tag_len; if ((tag_len = evtag_unmarshal_header(evbuf, &tag)) == -1 || tag != need_tag) return (-1); *pstring = mm_malloc(tag_len + 1); if (*pstring == NULL) { event_warn("%s: malloc", __func__); return -1; } evbuffer_remove(evbuf, *pstring, tag_len); (*pstring)[tag_len] = '\0'; return (0); } int evtag_unmarshal_timeval(struct evbuffer *evbuf, ev_uint32_t need_tag, struct timeval *ptv) { ev_uint32_t tag; ev_uint32_t integer; int len, offset, offset2; int result = -1; if ((len = evtag_unmarshal_header(evbuf, &tag)) == -1) return (-1); if (tag != need_tag) goto done; if ((offset = decode_int_internal(&integer, evbuf, 0)) == -1) goto done; ptv->tv_sec = integer; if ((offset2 = decode_int_internal(&integer, evbuf, offset)) == -1) goto done; ptv->tv_usec = integer; if (offset + offset2 > len) /* XXX Should this be != instead of > ? */ goto done; result = 0; done: evbuffer_drain(evbuf, len); return result; } dnscrypt-proxy-1.9.4/src/libevent-modified/evhttp.h000644 000765 000024 00000003706 13037731714 022022 0ustar00jstaff000000 000000 /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVHTTP_H_ #define _EVHTTP_H_ /** @file evhttp.h An http implementation subsystem for Libevent. The header is deprecated in Libevent 2.0 and later; please use instead. Depending on what functionality you need, you may also want to include more of the other headers. */ #include #include #include #include #endif /* _EVHTTP_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evmap-internal.h000644 000765 000024 00000007552 13037731714 023435 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVMAP_H_ #define _EVMAP_H_ /** @file evmap-internal.h * * An event_map is a utility structure to map each fd or signal to zero or * more events. Functions to manipulate event_maps should only be used from * inside libevent. They generally need to hold the lock on the corresponding * event_base. **/ struct event_base; struct event; /** Initialize an event_map for use. */ void evmap_io_initmap(struct event_io_map* ctx); void evmap_signal_initmap(struct event_signal_map* ctx); /** Remove all entries from an event_map. @param ctx the map to clear. */ void evmap_io_clear(struct event_io_map* ctx); void evmap_signal_clear(struct event_signal_map* ctx); /** Add an IO event (some combination of EV_READ or EV_WRITE) to an event_base's list of events on a given file descriptor, and tell the underlying eventops about the fd if its state has changed. Requires that ev is not already added. @param base the event_base to operate on. @param fd the file descriptor corresponding to ev. @param ev the event to add. */ int evmap_io_add(struct event_base *base, evutil_socket_t fd, struct event *ev); /** Remove an IO event (some combination of EV_READ or EV_WRITE) to an event_base's list of events on a given file descriptor, and tell the underlying eventops about the fd if its state has changed. @param base the event_base to operate on. @param fd the file descriptor corresponding to ev. @param ev the event to remove. */ int evmap_io_del(struct event_base *base, evutil_socket_t fd, struct event *ev); /** Active the set of events waiting on an event_base for a given fd. @param base the event_base to operate on. @param fd the file descriptor that has become active. @param events a bitmask of EV_READ|EV_WRITE|EV_ET. */ void evmap_io_active(struct event_base *base, evutil_socket_t fd, short events); /* These functions behave in the same way as evmap_io_*, except they work on * signals rather than fds. signals use a linear map everywhere; fds use * either a linear map or a hashtable. */ int evmap_signal_add(struct event_base *base, int signum, struct event *ev); int evmap_signal_del(struct event_base *base, int signum, struct event *ev); void evmap_signal_active(struct event_base *base, evutil_socket_t signum, int ncalls); void *evmap_io_get_fdinfo(struct event_io_map *ctx, evutil_socket_t fd); void evmap_check_integrity(struct event_base *base); #endif /* _EVMAP_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evmap.c000644 000765 000024 00000051703 13037731714 021613 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef WIN32 #include #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #endif #include #if !defined(WIN32) && defined(_EVENT_HAVE_SYS_TIME_H) #include #endif #include #include #include #ifndef WIN32 #include #endif #include #include #include #include #include "event-internal.h" #include "evmap-internal.h" #include "mm-internal.h" #include "changelist-internal.h" /** An entry for an evmap_io list: notes all the events that want to read or write on a given fd, and the number of each. */ struct evmap_io { struct event_list events; ev_uint16_t nread; ev_uint16_t nwrite; }; /* An entry for an evmap_signal list: notes all the events that want to know when a signal triggers. */ struct evmap_signal { struct event_list events; }; /* On some platforms, fds start at 0 and increment by 1 as they are allocated, and old numbers get used. For these platforms, we implement io maps just like signal maps: as an array of pointers to struct evmap_io. But on other platforms (windows), sockets are not 0-indexed, not necessarily consecutive, and not necessarily reused. There, we use a hashtable to implement evmap_io. */ #ifdef EVMAP_USE_HT struct event_map_entry { HT_ENTRY(event_map_entry) map_node; evutil_socket_t fd; union { /* This is a union in case we need to make more things that can be in the hashtable. */ struct evmap_io evmap_io; } ent; }; /* Helper used by the event_io_map hashtable code; tries to return a good hash * of the fd in e->fd. */ static inline unsigned hashsocket(struct event_map_entry *e) { /* On win32, in practice, the low 2-3 bits of a SOCKET seem not to * matter. Our hashtable implementation really likes low-order bits, * though, so let's do the rotate-and-add trick. */ unsigned h = (unsigned) e->fd; h += (h >> 2) | (h << 30); return h; } /* Helper used by the event_io_map hashtable code; returns true iff e1 and e2 * have the same e->fd. */ static inline int eqsocket(struct event_map_entry *e1, struct event_map_entry *e2) { return e1->fd == e2->fd; } HT_PROTOTYPE(event_io_map, event_map_entry, map_node, hashsocket, eqsocket) HT_GENERATE(event_io_map, event_map_entry, map_node, hashsocket, eqsocket, 0.5, mm_malloc, mm_realloc, mm_free) #define GET_IO_SLOT(x, map, slot, type) \ do { \ struct event_map_entry _key, *_ent; \ _key.fd = slot; \ _ent = HT_FIND(event_io_map, map, &_key); \ (x) = _ent ? &_ent->ent.type : NULL; \ } while (0); #define GET_IO_SLOT_AND_CTOR(x, map, slot, type, ctor, fdinfo_len) \ do { \ struct event_map_entry _key, *_ent; \ _key.fd = slot; \ _HT_FIND_OR_INSERT(event_io_map, map_node, hashsocket, map, \ event_map_entry, &_key, ptr, \ { \ _ent = *ptr; \ }, \ { \ _ent = mm_calloc(1,sizeof(struct event_map_entry)+fdinfo_len); \ if (EVUTIL_UNLIKELY(_ent == NULL)) \ return (-1); \ _ent->fd = slot; \ (ctor)(&_ent->ent.type); \ _HT_FOI_INSERT(map_node, map, &_key, _ent, ptr) \ }); \ (x) = &_ent->ent.type; \ } while (0) void evmap_io_initmap(struct event_io_map *ctx) { HT_INIT(event_io_map, ctx); } void evmap_io_clear(struct event_io_map *ctx) { struct event_map_entry **ent, **next, *this; for (ent = HT_START(event_io_map, ctx); ent; ent = next) { this = *ent; next = HT_NEXT_RMV(event_io_map, ctx, ent); mm_free(this); } HT_CLEAR(event_io_map, ctx); /* remove all storage held by the ctx. */ } #endif /* Set the variable 'x' to the field in event_map 'map' with fields of type 'struct type *' corresponding to the fd or signal 'slot'. Set 'x' to NULL if there are no entries for 'slot'. Does no bounds-checking. */ #define GET_SIGNAL_SLOT(x, map, slot, type) \ (x) = (struct type *)((map)->entries[slot]) /* As GET_SLOT, but construct the entry for 'slot' if it is not present, by allocating enough memory for a 'struct type', and initializing the new value by calling the function 'ctor' on it. Makes the function return -1 on allocation failure. */ #define GET_SIGNAL_SLOT_AND_CTOR(x, map, slot, type, ctor, fdinfo_len) \ do { \ if ((map)->entries[slot] == NULL) { \ (map)->entries[slot] = \ mm_calloc(1,sizeof(struct type)+fdinfo_len); \ if (EVUTIL_UNLIKELY((map)->entries[slot] == NULL)) \ return (-1); \ (ctor)((struct type *)(map)->entries[slot]); \ } \ (x) = (struct type *)((map)->entries[slot]); \ } while (0) /* If we aren't using hashtables, then define the IO_SLOT macros and functions as thin aliases over the SIGNAL_SLOT versions. */ #ifndef EVMAP_USE_HT #define GET_IO_SLOT(x,map,slot,type) GET_SIGNAL_SLOT(x,map,slot,type) #define GET_IO_SLOT_AND_CTOR(x,map,slot,type,ctor,fdinfo_len) \ GET_SIGNAL_SLOT_AND_CTOR(x,map,slot,type,ctor,fdinfo_len) #define FDINFO_OFFSET sizeof(struct evmap_io) void evmap_io_initmap(struct event_io_map* ctx) { evmap_signal_initmap(ctx); } void evmap_io_clear(struct event_io_map* ctx) { evmap_signal_clear(ctx); } #endif /** Expand 'map' with new entries of width 'msize' until it is big enough to store a value in 'slot'. */ static int evmap_make_space(struct event_signal_map *map, int slot, int msize) { if (map->nentries <= slot) { int nentries = map->nentries ? map->nentries : 32; void **tmp; while (nentries <= slot) nentries <<= 1; tmp = (void **)mm_realloc(map->entries, nentries * msize); if (tmp == NULL) return (-1); memset(&tmp[map->nentries], 0, (nentries - map->nentries) * msize); map->nentries = nentries; map->entries = tmp; } return (0); } void evmap_signal_initmap(struct event_signal_map *ctx) { ctx->nentries = 0; ctx->entries = NULL; } void evmap_signal_clear(struct event_signal_map *ctx) { if (ctx->entries != NULL) { int i; for (i = 0; i < ctx->nentries; ++i) { if (ctx->entries[i] != NULL) mm_free(ctx->entries[i]); } mm_free(ctx->entries); ctx->entries = NULL; } ctx->nentries = 0; } /* code specific to file descriptors */ /** Constructor for struct evmap_io */ static void evmap_io_init(struct evmap_io *entry) { TAILQ_INIT(&entry->events); entry->nread = 0; entry->nwrite = 0; } /* return -1 on error, 0 on success if nothing changed in the event backend, * and 1 on success if something did. */ int evmap_io_add(struct event_base *base, evutil_socket_t fd, struct event *ev) { const struct eventop *evsel = base->evsel; struct event_io_map *io = &base->io; struct evmap_io *ctx = NULL; int nread, nwrite, retval = 0; short res = 0, old = 0; struct event *old_ev; EVUTIL_ASSERT(fd == ev->ev_fd); if (fd < 0) return 0; #ifndef EVMAP_USE_HT if (fd >= io->nentries) { if (evmap_make_space(io, fd, sizeof(struct evmap_io *)) == -1) return (-1); } #endif GET_IO_SLOT_AND_CTOR(ctx, io, fd, evmap_io, evmap_io_init, evsel->fdinfo_len); nread = ctx->nread; nwrite = ctx->nwrite; if (nread) old |= EV_READ; if (nwrite) old |= EV_WRITE; if (ev->ev_events & EV_READ) { if (++nread == 1) res |= EV_READ; } if (ev->ev_events & EV_WRITE) { if (++nwrite == 1) res |= EV_WRITE; } if (EVUTIL_UNLIKELY(nread > 0xffff || nwrite > 0xffff)) { event_warnx("Too many events reading or writing on fd %d", (int)fd); return -1; } if (EVENT_DEBUG_MODE_IS_ON() && (old_ev = TAILQ_FIRST(&ctx->events)) && (old_ev->ev_events&EV_ET) != (ev->ev_events&EV_ET)) { event_warnx("Tried to mix edge-triggered and non-edge-triggered" " events on fd %d", (int)fd); return -1; } if (res) { void *extra = ((char*)ctx) + sizeof(struct evmap_io); /* XXX(niels): we cannot mix edge-triggered and * level-triggered, we should probably assert on * this. */ if (evsel->add(base, ev->ev_fd, old, (ev->ev_events & EV_ET) | res, extra) == -1) return (-1); retval = 1; } ctx->nread = (ev_uint16_t) nread; ctx->nwrite = (ev_uint16_t) nwrite; TAILQ_INSERT_TAIL(&ctx->events, ev, ev_io_next); return (retval); } /* return -1 on error, 0 on success if nothing changed in the event backend, * and 1 on success if something did. */ int evmap_io_del(struct event_base *base, evutil_socket_t fd, struct event *ev) { const struct eventop *evsel = base->evsel; struct event_io_map *io = &base->io; struct evmap_io *ctx; int nread, nwrite, retval = 0; short res = 0, old = 0; if (fd < 0) return 0; EVUTIL_ASSERT(fd == ev->ev_fd); #ifndef EVMAP_USE_HT if (fd >= io->nentries) return (-1); #endif GET_IO_SLOT(ctx, io, fd, evmap_io); nread = ctx->nread; nwrite = ctx->nwrite; if (nread) old |= EV_READ; if (nwrite) old |= EV_WRITE; if (ev->ev_events & EV_READ) { if (--nread == 0) res |= EV_READ; EVUTIL_ASSERT(nread >= 0); } if (ev->ev_events & EV_WRITE) { if (--nwrite == 0) res |= EV_WRITE; EVUTIL_ASSERT(nwrite >= 0); } if (res) { void *extra = ((char*)ctx) + sizeof(struct evmap_io); if (evsel->del(base, ev->ev_fd, old, res, extra) == -1) return (-1); retval = 1; } ctx->nread = nread; ctx->nwrite = nwrite; TAILQ_REMOVE(&ctx->events, ev, ev_io_next); return (retval); } void evmap_io_active(struct event_base *base, evutil_socket_t fd, short events) { struct event_io_map *io = &base->io; struct evmap_io *ctx; struct event *ev; #ifndef EVMAP_USE_HT EVUTIL_ASSERT(fd < io->nentries); #endif GET_IO_SLOT(ctx, io, fd, evmap_io); EVUTIL_ASSERT(ctx); TAILQ_FOREACH(ev, &ctx->events, ev_io_next) { if (ev->ev_events & events) event_active_nolock(ev, ev->ev_events & events, 1); } } /* code specific to signals */ static void evmap_signal_init(struct evmap_signal *entry) { TAILQ_INIT(&entry->events); } int evmap_signal_add(struct event_base *base, int sig, struct event *ev) { const struct eventop *evsel = base->evsigsel; struct event_signal_map *map = &base->sigmap; struct evmap_signal *ctx = NULL; if (sig >= map->nentries) { if (evmap_make_space( map, sig, sizeof(struct evmap_signal *)) == -1) return (-1); } GET_SIGNAL_SLOT_AND_CTOR(ctx, map, sig, evmap_signal, evmap_signal_init, base->evsigsel->fdinfo_len); if (TAILQ_EMPTY(&ctx->events)) { if (evsel->add(base, ev->ev_fd, 0, EV_SIGNAL, NULL) == -1) return (-1); } TAILQ_INSERT_TAIL(&ctx->events, ev, ev_signal_next); return (1); } int evmap_signal_del(struct event_base *base, int sig, struct event *ev) { const struct eventop *evsel = base->evsigsel; struct event_signal_map *map = &base->sigmap; struct evmap_signal *ctx; if (sig >= map->nentries) return (-1); GET_SIGNAL_SLOT(ctx, map, sig, evmap_signal); if (TAILQ_FIRST(&ctx->events) == TAILQ_LAST(&ctx->events, event_list)) { if (evsel->del(base, ev->ev_fd, 0, EV_SIGNAL, NULL) == -1) return (-1); } TAILQ_REMOVE(&ctx->events, ev, ev_signal_next); return (1); } void evmap_signal_active(struct event_base *base, evutil_socket_t sig, int ncalls) { struct event_signal_map *map = &base->sigmap; struct evmap_signal *ctx; struct event *ev; EVUTIL_ASSERT(sig < map->nentries); GET_SIGNAL_SLOT(ctx, map, sig, evmap_signal); TAILQ_FOREACH(ev, &ctx->events, ev_signal_next) event_active_nolock(ev, EV_SIGNAL, ncalls); } void * evmap_io_get_fdinfo(struct event_io_map *map, evutil_socket_t fd) { struct evmap_io *ctx; GET_IO_SLOT(ctx, map, fd, evmap_io); if (ctx) return ((char*)ctx) + sizeof(struct evmap_io); else return NULL; } /** Per-fd structure for use with changelists. It keeps track, for each fd or * signal using the changelist, of where its entry in the changelist is. */ struct event_changelist_fdinfo { int idxplus1; /* this is the index +1, so that memset(0) will make it * a no-such-element */ }; void event_changelist_init(struct event_changelist *changelist) { changelist->changes = NULL; changelist->changes_size = 0; changelist->n_changes = 0; } /** Helper: return the changelist_fdinfo corresponding to a given change. */ static inline struct event_changelist_fdinfo * event_change_get_fdinfo(struct event_base *base, const struct event_change *change) { char *ptr; if (change->read_change & EV_CHANGE_SIGNAL) { struct evmap_signal *ctx; GET_SIGNAL_SLOT(ctx, &base->sigmap, change->fd, evmap_signal); ptr = ((char*)ctx) + sizeof(struct evmap_signal); } else { struct evmap_io *ctx; GET_IO_SLOT(ctx, &base->io, change->fd, evmap_io); ptr = ((char*)ctx) + sizeof(struct evmap_io); } return (void*)ptr; } #ifdef DEBUG_CHANGELIST /** Make sure that the changelist is consistent with the evmap structures. */ static void event_changelist_check(struct event_base *base) { int i; struct event_changelist *changelist = &base->changelist; EVUTIL_ASSERT(changelist->changes_size >= changelist->n_changes); for (i = 0; i < changelist->n_changes; ++i) { struct event_change *c = &changelist->changes[i]; struct event_changelist_fdinfo *f; EVUTIL_ASSERT(c->fd >= 0); f = event_change_get_fdinfo(base, c); EVUTIL_ASSERT(f); EVUTIL_ASSERT(f->idxplus1 == i + 1); } for (i = 0; i < base->io.nentries; ++i) { struct evmap_io *io = base->io.entries[i]; struct event_changelist_fdinfo *f; if (!io) continue; f = (void*) ( ((char*)io) + sizeof(struct evmap_io) ); if (f->idxplus1) { struct event_change *c = &changelist->changes[f->idxplus1 - 1]; EVUTIL_ASSERT(c->fd == i); } } } #else #define event_changelist_check(base) ((void)0) #endif void event_changelist_remove_all(struct event_changelist *changelist, struct event_base *base) { int i; event_changelist_check(base); for (i = 0; i < changelist->n_changes; ++i) { struct event_change *ch = &changelist->changes[i]; struct event_changelist_fdinfo *fdinfo = event_change_get_fdinfo(base, ch); EVUTIL_ASSERT(fdinfo->idxplus1 == i + 1); fdinfo->idxplus1 = 0; } changelist->n_changes = 0; event_changelist_check(base); } void event_changelist_freemem(struct event_changelist *changelist) { if (changelist->changes) mm_free(changelist->changes); event_changelist_init(changelist); /* zero it all out. */ } /** Increase the size of 'changelist' to hold more changes. */ static int event_changelist_grow(struct event_changelist *changelist) { int new_size; struct event_change *new_changes; if (changelist->changes_size < 64) new_size = 64; else new_size = changelist->changes_size * 2; new_changes = mm_realloc(changelist->changes, new_size * sizeof(struct event_change)); if (EVUTIL_UNLIKELY(new_changes == NULL)) return (-1); changelist->changes = new_changes; changelist->changes_size = new_size; return (0); } /** Return a pointer to the changelist entry for the file descriptor or signal * 'fd', whose fdinfo is 'fdinfo'. If none exists, construct it, setting its * old_events field to old_events. */ static struct event_change * event_changelist_get_or_construct(struct event_changelist *changelist, evutil_socket_t fd, short old_events, struct event_changelist_fdinfo *fdinfo) { struct event_change *change; if (fdinfo->idxplus1 == 0) { int idx; EVUTIL_ASSERT(changelist->n_changes <= changelist->changes_size); if (changelist->n_changes == changelist->changes_size) { if (event_changelist_grow(changelist) < 0) return NULL; } idx = changelist->n_changes++; change = &changelist->changes[idx]; fdinfo->idxplus1 = idx + 1; memset(change, 0, sizeof(struct event_change)); change->fd = fd; change->old_events = old_events; } else { change = &changelist->changes[fdinfo->idxplus1 - 1]; EVUTIL_ASSERT(change->fd == fd); } return change; } int event_changelist_add(struct event_base *base, evutil_socket_t fd, short old, short events, void *p) { struct event_changelist *changelist = &base->changelist; struct event_changelist_fdinfo *fdinfo = p; struct event_change *change; event_changelist_check(base); change = event_changelist_get_or_construct(changelist, fd, old, fdinfo); if (!change) return -1; /* An add replaces any previous delete, but doesn't result in a no-op, * since the delete might fail (because the fd had been closed since * the last add, for instance. */ if (events & (EV_READ|EV_SIGNAL)) { change->read_change = EV_CHANGE_ADD | (events & (EV_ET|EV_PERSIST|EV_SIGNAL)); } if (events & EV_WRITE) { change->write_change = EV_CHANGE_ADD | (events & (EV_ET|EV_PERSIST|EV_SIGNAL)); } event_changelist_check(base); return (0); } int event_changelist_del(struct event_base *base, evutil_socket_t fd, short old, short events, void *p) { struct event_changelist *changelist = &base->changelist; struct event_changelist_fdinfo *fdinfo = p; struct event_change *change; event_changelist_check(base); change = event_changelist_get_or_construct(changelist, fd, old, fdinfo); event_changelist_check(base); if (!change) return -1; /* A delete removes any previous add, rather than replacing it: on those platforms where "add, delete, dispatch" is not the same as "no-op, dispatch", we want the no-op behavior. As well as checking the current operation we should also check the original set of events to make sure were not ignoring the case where the add operation is present on an event that was already set. If we have a no-op item, we could remove it it from the list entirely, but really there's not much point: skipping the no-op change when we do the dispatch later is far cheaper than rejuggling the array now. As this stands, it also lets through deletions of events that are not currently set. */ if (events & (EV_READ|EV_SIGNAL)) { if (!(change->old_events & (EV_READ | EV_SIGNAL)) && (change->read_change & EV_CHANGE_ADD)) change->read_change = 0; else change->read_change = EV_CHANGE_DEL; } if (events & EV_WRITE) { if (!(change->old_events & EV_WRITE) && (change->write_change & EV_CHANGE_ADD)) change->write_change = 0; else change->write_change = EV_CHANGE_DEL; } event_changelist_check(base); return (0); } void evmap_check_integrity(struct event_base *base) { #define EVLIST_X_SIGFOUND 0x1000 #define EVLIST_X_IOFOUND 0x2000 evutil_socket_t i; struct event *ev; struct event_io_map *io = &base->io; struct event_signal_map *sigmap = &base->sigmap; #ifdef EVMAP_USE_HT struct event_map_entry **mapent; #endif int nsignals, ntimers, nio; nsignals = ntimers = nio = 0; TAILQ_FOREACH(ev, &base->eventqueue, ev_next) { EVUTIL_ASSERT(ev->ev_flags & EVLIST_INSERTED); EVUTIL_ASSERT(ev->ev_flags & EVLIST_INIT); ev->ev_flags &= ~(EVLIST_X_SIGFOUND|EVLIST_X_IOFOUND); } #ifdef EVMAP_USE_HT HT_FOREACH(mapent, event_io_map, io) { struct evmap_io *ctx = &(*mapent)->ent.evmap_io; i = (*mapent)->fd; #else for (i = 0; i < io->nentries; ++i) { struct evmap_io *ctx = io->entries[i]; if (!ctx) continue; #endif TAILQ_FOREACH(ev, &ctx->events, ev_io_next) { EVUTIL_ASSERT(!(ev->ev_flags & EVLIST_X_IOFOUND)); EVUTIL_ASSERT(ev->ev_fd == i); ev->ev_flags |= EVLIST_X_IOFOUND; nio++; } } for (i = 0; i < sigmap->nentries; ++i) { struct evmap_signal *ctx = sigmap->entries[i]; if (!ctx) continue; TAILQ_FOREACH(ev, &ctx->events, ev_signal_next) { EVUTIL_ASSERT(!(ev->ev_flags & EVLIST_X_SIGFOUND)); EVUTIL_ASSERT(ev->ev_fd == i); ev->ev_flags |= EVLIST_X_SIGFOUND; nsignals++; } } TAILQ_FOREACH(ev, &base->eventqueue, ev_next) { if (ev->ev_events & (EV_READ|EV_WRITE)) { EVUTIL_ASSERT(ev->ev_flags & EVLIST_X_IOFOUND); --nio; } if (ev->ev_events & EV_SIGNAL) { EVUTIL_ASSERT(ev->ev_flags & EVLIST_X_SIGFOUND); --nsignals; } } EVUTIL_ASSERT(nio == 0); EVUTIL_ASSERT(nsignals == 0); /* There is no "EVUTIL_ASSERT(ntimers == 0)": eventqueue is only for * pending signals and io events. */ } dnscrypt-proxy-1.9.4/src/libevent-modified/evport.c000644 000765 000024 00000027513 13037731714 022024 0ustar00jstaff000000 000000 /* * Submitted by David Pacheco (dp.spambait@gmail.com) * * Copyright 2006-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY SUN MICROSYSTEMS, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 2007 Sun Microsystems. All rights reserved. * Use is subject to license terms. */ /* * evport.c: event backend using Solaris 10 event ports. See port_create(3C). * This implementation is loosely modeled after the one used for select(2) (in * select.c). * * The outstanding events are tracked in a data structure called evport_data. * Each entry in the ed_fds array corresponds to a file descriptor, and contains * pointers to the read and write events that correspond to that fd. (That is, * when the file is readable, the "read" event should handle it, etc.) * * evport_add and evport_del update this data structure. evport_dispatch uses it * to determine where to callback when an event occurs (which it gets from * port_getn). * * Helper functions are used: grow() grows the file descriptor array as * necessary when large fd's come in. reassociate() takes care of maintaining * the proper file-descriptor/event-port associations. * * As in the select(2) implementation, signals are handled by evsignal. */ #include "event2/event-config.h" #include #include #include #include #include #include #include #include #include #include #include #include "event2/thread.h" #include "evthread-internal.h" #include "event-internal.h" #include "log-internal.h" #include "evsignal-internal.h" #include "evmap-internal.h" /* * Default value for ed_nevents, which is the maximum file descriptor number we * can handle. If an event comes in for a file descriptor F > nevents, we will * grow the array of file descriptors, doubling its size. */ #define DEFAULT_NFDS 16 /* * EVENTS_PER_GETN is the maximum number of events to retrieve from port_getn on * any particular call. You can speed things up by increasing this, but it will * (obviously) require more memory. */ #define EVENTS_PER_GETN 8 /* * Per-file-descriptor information about what events we're subscribed to. These * fields are NULL if no event is subscribed to either of them. */ struct fd_info { short fdi_what; /* combinations of EV_READ and EV_WRITE */ }; #define FDI_HAS_READ(fdi) ((fdi)->fdi_what & EV_READ) #define FDI_HAS_WRITE(fdi) ((fdi)->fdi_what & EV_WRITE) #define FDI_HAS_EVENTS(fdi) (FDI_HAS_READ(fdi) || FDI_HAS_WRITE(fdi)) #define FDI_TO_SYSEVENTS(fdi) (FDI_HAS_READ(fdi) ? POLLIN : 0) | \ (FDI_HAS_WRITE(fdi) ? POLLOUT : 0) struct evport_data { int ed_port; /* event port for system events */ int ed_nevents; /* number of allocated fdi's */ struct fd_info *ed_fds; /* allocated fdi table */ /* fdi's that we need to reassoc */ int ed_pending[EVENTS_PER_GETN]; /* fd's with pending events */ }; static void* evport_init(struct event_base *); static int evport_add(struct event_base *, int fd, short old, short events, void *); static int evport_del(struct event_base *, int fd, short old, short events, void *); static int evport_dispatch(struct event_base *, struct timeval *); static void evport_dealloc(struct event_base *); const struct eventop evportops = { "evport", evport_init, evport_add, evport_del, evport_dispatch, evport_dealloc, 1, /* need reinit */ 0, /* features */ 0, /* fdinfo length */ }; /* * Initialize the event port implementation. */ static void* evport_init(struct event_base *base) { struct evport_data *evpd; int i; if (!(evpd = mm_calloc(1, sizeof(struct evport_data)))) return (NULL); if ((evpd->ed_port = port_create()) == -1) { mm_free(evpd); return (NULL); } /* * Initialize file descriptor structure */ evpd->ed_fds = mm_calloc(DEFAULT_NFDS, sizeof(struct fd_info)); if (evpd->ed_fds == NULL) { close(evpd->ed_port); mm_free(evpd); return (NULL); } evpd->ed_nevents = DEFAULT_NFDS; for (i = 0; i < EVENTS_PER_GETN; i++) evpd->ed_pending[i] = -1; evsig_init(base); return (evpd); } #ifdef CHECK_INVARIANTS /* * Checks some basic properties about the evport_data structure. Because it * checks all file descriptors, this function can be expensive when the maximum * file descriptor ever used is rather large. */ static void check_evportop(struct evport_data *evpd) { EVUTIL_ASSERT(evpd); EVUTIL_ASSERT(evpd->ed_nevents > 0); EVUTIL_ASSERT(evpd->ed_port > 0); EVUTIL_ASSERT(evpd->ed_fds > 0); } /* * Verifies very basic integrity of a given port_event. */ static void check_event(port_event_t* pevt) { /* * We've only registered for PORT_SOURCE_FD events. The only * other thing we can legitimately receive is PORT_SOURCE_ALERT, * but since we're not using port_alert either, we can assume * PORT_SOURCE_FD. */ EVUTIL_ASSERT(pevt->portev_source == PORT_SOURCE_FD); EVUTIL_ASSERT(pevt->portev_user == NULL); } #else #define check_evportop(epop) #define check_event(pevt) #endif /* CHECK_INVARIANTS */ /* * Doubles the size of the allocated file descriptor array. */ static int grow(struct evport_data *epdp, int factor) { struct fd_info *tmp; int oldsize = epdp->ed_nevents; int newsize = factor * oldsize; EVUTIL_ASSERT(factor > 1); check_evportop(epdp); tmp = mm_realloc(epdp->ed_fds, sizeof(struct fd_info) * newsize); if (NULL == tmp) return -1; epdp->ed_fds = tmp; memset((char*) (epdp->ed_fds + oldsize), 0, (newsize - oldsize)*sizeof(struct fd_info)); epdp->ed_nevents = newsize; check_evportop(epdp); return 0; } /* * (Re)associates the given file descriptor with the event port. The OS events * are specified (implicitly) from the fd_info struct. */ static int reassociate(struct evport_data *epdp, struct fd_info *fdip, int fd) { int sysevents = FDI_TO_SYSEVENTS(fdip); if (sysevents != 0) { if (port_associate(epdp->ed_port, PORT_SOURCE_FD, fd, sysevents, NULL) == -1) { event_warn("port_associate"); return (-1); } } check_evportop(epdp); return (0); } /* * Main event loop - polls port_getn for some number of events, and processes * them. */ static int evport_dispatch(struct event_base *base, struct timeval *tv) { int i, res; struct evport_data *epdp = base->evbase; port_event_t pevtlist[EVENTS_PER_GETN]; /* * port_getn will block until it has at least nevents events. It will * also return how many it's given us (which may be more than we asked * for, as long as it's less than our maximum (EVENTS_PER_GETN)) in * nevents. */ int nevents = 1; /* * We have to convert a struct timeval to a struct timespec * (only difference is nanoseconds vs. microseconds). If no time-based * events are active, we should wait for I/O (and tv == NULL). */ struct timespec ts; struct timespec *ts_p = NULL; if (tv != NULL) { ts.tv_sec = tv->tv_sec; ts.tv_nsec = tv->tv_usec * 1000; ts_p = &ts; } /* * Before doing anything else, we need to reassociate the events we hit * last time which need reassociation. See comment at the end of the * loop below. */ for (i = 0; i < EVENTS_PER_GETN; ++i) { struct fd_info *fdi = NULL; if (epdp->ed_pending[i] != -1) { fdi = &(epdp->ed_fds[epdp->ed_pending[i]]); } if (fdi != NULL && FDI_HAS_EVENTS(fdi)) { int fd = epdp->ed_pending[i]; reassociate(epdp, fdi, fd); epdp->ed_pending[i] = -1; } } EVBASE_RELEASE_LOCK(base, th_base_lock); res = port_getn(epdp->ed_port, pevtlist, EVENTS_PER_GETN, (unsigned int *) &nevents, ts_p); EVBASE_ACQUIRE_LOCK(base, th_base_lock); if (res == -1) { if (errno == EINTR || errno == EAGAIN) { return (0); } else if (errno == ETIME) { if (nevents == 0) return (0); } else { event_warn("port_getn"); return (-1); } } event_debug(("%s: port_getn reports %d events", __func__, nevents)); for (i = 0; i < nevents; ++i) { struct fd_info *fdi; port_event_t *pevt = &pevtlist[i]; int fd = (int) pevt->portev_object; check_evportop(epdp); check_event(pevt); epdp->ed_pending[i] = fd; /* * Figure out what kind of event it was * (because we have to pass this to the callback) */ res = 0; if (pevt->portev_events & (POLLERR|POLLHUP)) { res = EV_READ | EV_WRITE; } else { if (pevt->portev_events & POLLIN) res |= EV_READ; if (pevt->portev_events & POLLOUT) res |= EV_WRITE; } /* * Check for the error situations or a hangup situation */ if (pevt->portev_events & (POLLERR|POLLHUP|POLLNVAL)) res |= EV_READ|EV_WRITE; EVUTIL_ASSERT(epdp->ed_nevents > fd); fdi = &(epdp->ed_fds[fd]); evmap_io_active(base, fd, res); } /* end of all events gotten */ check_evportop(epdp); return (0); } /* * Adds the given event (so that you will be notified when it happens via * the callback function). */ static int evport_add(struct event_base *base, int fd, short old, short events, void *p) { struct evport_data *evpd = base->evbase; struct fd_info *fdi; int factor; (void)p; check_evportop(evpd); /* * If necessary, grow the file descriptor info table */ factor = 1; while (fd >= factor * evpd->ed_nevents) factor *= 2; if (factor > 1) { if (-1 == grow(evpd, factor)) { return (-1); } } fdi = &evpd->ed_fds[fd]; fdi->fdi_what |= events; return reassociate(evpd, fdi, fd); } /* * Removes the given event from the list of events to wait for. */ static int evport_del(struct event_base *base, int fd, short old, short events, void *p) { struct evport_data *evpd = base->evbase; struct fd_info *fdi; int i; int associated = 1; (void)p; check_evportop(evpd); if (evpd->ed_nevents < fd) { return (-1); } for (i = 0; i < EVENTS_PER_GETN; ++i) { if (evpd->ed_pending[i] == fd) { associated = 0; break; } } fdi = &evpd->ed_fds[fd]; if (events & EV_READ) fdi->fdi_what &= ~EV_READ; if (events & EV_WRITE) fdi->fdi_what &= ~EV_WRITE; if (associated) { if (!FDI_HAS_EVENTS(fdi) && port_dissociate(evpd->ed_port, PORT_SOURCE_FD, fd) == -1) { /* * Ignore EBADFD error the fd could have been closed * before event_del() was called. */ if (errno != EBADFD) { event_warn("port_dissociate"); return (-1); } } else { if (FDI_HAS_EVENTS(fdi)) { return (reassociate(evpd, fdi, fd)); } } } else { if ((fdi->fdi_what & (EV_READ|EV_WRITE)) == 0) { EVUTIL_ASSERT(i < EVENTS_PER_GETN); evpd->ed_pending[i] = -1; } } return 0; } static void evport_dealloc(struct event_base *base) { struct evport_data *evpd = base->evbase; evsig_dealloc(base); close(evpd->ed_port); if (evpd->ed_fds) mm_free(evpd->ed_fds); mm_free(evpd); } dnscrypt-proxy-1.9.4/src/libevent-modified/evrpc-internal.h000644 000765 000024 00000013032 13037731714 023432 0ustar00jstaff000000 000000 /* * Copyright (c) 2006-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVRPC_INTERNAL_H_ #define _EVRPC_INTERNAL_H_ #include "http-internal.h" struct evrpc; struct evrpc_request_wrapper; #define EVRPC_URI_PREFIX "/.rpc." struct evrpc_hook { TAILQ_ENTRY(evrpc_hook) next; /* returns EVRPC_TERMINATE; if the rpc should be aborted. * a hook is is allowed to rewrite the evbuffer */ int (*process)(void *, struct evhttp_request *, struct evbuffer *, void *); void *process_arg; }; TAILQ_HEAD(evrpc_hook_list, evrpc_hook); /* * this is shared between the base and the pool, so that we can reuse * the hook adding functions; we alias both evrpc_pool and evrpc_base * to this common structure. */ struct evrpc_hook_ctx; TAILQ_HEAD(evrpc_pause_list, evrpc_hook_ctx); struct _evrpc_hooks { /* hooks for processing outbound and inbound rpcs */ struct evrpc_hook_list in_hooks; struct evrpc_hook_list out_hooks; struct evrpc_pause_list pause_requests; }; #define input_hooks common.in_hooks #define output_hooks common.out_hooks #define paused_requests common.pause_requests struct evrpc_base { struct _evrpc_hooks common; /* the HTTP server under which we register our RPC calls */ struct evhttp* http_server; /* a list of all RPCs registered with us */ TAILQ_HEAD(evrpc_list, evrpc) registered_rpcs; }; struct evrpc_req_generic; void evrpc_reqstate_free(struct evrpc_req_generic* rpc_state); /* A pool for holding evhttp_connection objects */ struct evrpc_pool { struct _evrpc_hooks common; struct event_base *base; struct evconq connections; int timeout; TAILQ_HEAD(evrpc_requestq, evrpc_request_wrapper) (requests); }; struct evrpc_hook_ctx { TAILQ_ENTRY(evrpc_hook_ctx) next; void *ctx; void (*cb)(void *, enum EVRPC_HOOK_RESULT); }; struct evrpc_meta { TAILQ_ENTRY(evrpc_meta) next; char *key; void *data; size_t data_size; }; TAILQ_HEAD(evrpc_meta_list, evrpc_meta); struct evrpc_hook_meta { struct evrpc_meta_list meta_data; struct evhttp_connection *evcon; }; /* allows association of meta data with a request */ static void evrpc_hook_associate_meta(struct evrpc_hook_meta **pctx, struct evhttp_connection *evcon); /* creates a new meta data store */ static struct evrpc_hook_meta *evrpc_hook_meta_new(void); /* frees the meta data associated with a request */ static void evrpc_hook_context_free(struct evrpc_hook_meta *ctx); /* the server side of an rpc */ /* We alias the RPC specific structs to this voided one */ struct evrpc_req_generic { /* * allows association of meta data via hooks - needs to be * synchronized with evrpc_request_wrapper */ struct evrpc_hook_meta *hook_meta; /* the unmarshaled request object */ void *request; /* the empty reply object that needs to be filled in */ void *reply; /* * the static structure for this rpc; that can be used to * automatically unmarshal and marshal the http buffers. */ struct evrpc *rpc; /* * the http request structure on which we need to answer. */ struct evhttp_request* http_req; /* * Temporary data store for marshaled data */ struct evbuffer* rpc_data; }; /* the client side of an rpc request */ struct evrpc_request_wrapper { /* * allows association of meta data via hooks - needs to be * synchronized with evrpc_req_generic. */ struct evrpc_hook_meta *hook_meta; TAILQ_ENTRY(evrpc_request_wrapper) next; /* pool on which this rpc request is being made */ struct evrpc_pool *pool; /* connection on which the request is being sent */ struct evhttp_connection *evcon; /* the actual request */ struct evhttp_request *req; /* event for implementing request timeouts */ struct event ev_timeout; /* the name of the rpc */ char *name; /* callback */ void (*cb)(struct evrpc_status*, void *request, void *reply, void *arg); void *cb_arg; void *request; void *reply; /* unmarshals the buffer into the proper request structure */ void (*request_marshal)(struct evbuffer *, void *); /* removes all stored state in the reply */ void (*reply_clear)(void *); /* marshals the reply into a buffer */ int (*reply_unmarshal)(void *, struct evbuffer*); }; #endif /* _EVRPC_INTERNAL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evrpc.c000644 000765 000024 00000071265 13037731714 021627 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef WIN32 #define WIN32_LEAN_AND_MEAN #include #include #undef WIN32_LEAN_AND_MEAN #endif #include #ifndef WIN32 #include #endif #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #ifndef WIN32 #include #endif #include #include #include #include #include "event2/event.h" #include "event2/event_struct.h" #include "event2/rpc.h" #include "event2/rpc_struct.h" #include "evrpc-internal.h" #include "event2/http.h" #include "event2/buffer.h" #include "event2/tag.h" #include "event2/http_struct.h" #include "event2/http_compat.h" #include "event2/util.h" #include "util-internal.h" #include "log-internal.h" #include "mm-internal.h" struct evrpc_base * evrpc_init(struct evhttp *http_server) { struct evrpc_base* base = mm_calloc(1, sizeof(struct evrpc_base)); if (base == NULL) return (NULL); /* we rely on the tagging sub system */ evtag_init(); TAILQ_INIT(&base->registered_rpcs); TAILQ_INIT(&base->input_hooks); TAILQ_INIT(&base->output_hooks); TAILQ_INIT(&base->paused_requests); base->http_server = http_server; return (base); } void evrpc_free(struct evrpc_base *base) { struct evrpc *rpc; struct evrpc_hook *hook; struct evrpc_hook_ctx *pause; int r; while ((rpc = TAILQ_FIRST(&base->registered_rpcs)) != NULL) { r = evrpc_unregister_rpc(base, rpc->uri); EVUTIL_ASSERT(r == 0); } while ((pause = TAILQ_FIRST(&base->paused_requests)) != NULL) { TAILQ_REMOVE(&base->paused_requests, pause, next); mm_free(pause); } while ((hook = TAILQ_FIRST(&base->input_hooks)) != NULL) { r = evrpc_remove_hook(base, EVRPC_INPUT, hook); EVUTIL_ASSERT(r); } while ((hook = TAILQ_FIRST(&base->output_hooks)) != NULL) { r = evrpc_remove_hook(base, EVRPC_OUTPUT, hook); EVUTIL_ASSERT(r); } mm_free(base); } void * evrpc_add_hook(void *vbase, enum EVRPC_HOOK_TYPE hook_type, int (*cb)(void *, struct evhttp_request *, struct evbuffer *, void *), void *cb_arg) { struct _evrpc_hooks *base = vbase; struct evrpc_hook_list *head = NULL; struct evrpc_hook *hook = NULL; switch (hook_type) { case EVRPC_INPUT: head = &base->in_hooks; break; case EVRPC_OUTPUT: head = &base->out_hooks; break; default: EVUTIL_ASSERT(hook_type == EVRPC_INPUT || hook_type == EVRPC_OUTPUT); } hook = mm_calloc(1, sizeof(struct evrpc_hook)); EVUTIL_ASSERT(hook != NULL); hook->process = cb; hook->process_arg = cb_arg; TAILQ_INSERT_TAIL(head, hook, next); return (hook); } static int evrpc_remove_hook_internal(struct evrpc_hook_list *head, void *handle) { struct evrpc_hook *hook = NULL; TAILQ_FOREACH(hook, head, next) { if (hook == handle) { TAILQ_REMOVE(head, hook, next); mm_free(hook); return (1); } } return (0); } /* * remove the hook specified by the handle */ int evrpc_remove_hook(void *vbase, enum EVRPC_HOOK_TYPE hook_type, void *handle) { struct _evrpc_hooks *base = vbase; struct evrpc_hook_list *head = NULL; switch (hook_type) { case EVRPC_INPUT: head = &base->in_hooks; break; case EVRPC_OUTPUT: head = &base->out_hooks; break; default: EVUTIL_ASSERT(hook_type == EVRPC_INPUT || hook_type == EVRPC_OUTPUT); } return (evrpc_remove_hook_internal(head, handle)); } static int evrpc_process_hooks(struct evrpc_hook_list *head, void *ctx, struct evhttp_request *req, struct evbuffer *evbuf) { struct evrpc_hook *hook; TAILQ_FOREACH(hook, head, next) { int res = hook->process(ctx, req, evbuf, hook->process_arg); if (res != EVRPC_CONTINUE) return (res); } return (EVRPC_CONTINUE); } static void evrpc_pool_schedule(struct evrpc_pool *pool); static void evrpc_request_cb(struct evhttp_request *, void *); /* * Registers a new RPC with the HTTP server. The evrpc object is expected * to have been filled in via the EVRPC_REGISTER_OBJECT macro which in turn * calls this function. */ static char * evrpc_construct_uri(const char *uri) { char *constructed_uri; size_t constructed_uri_len; constructed_uri_len = strlen(EVRPC_URI_PREFIX) + strlen(uri) + 1; if ((constructed_uri = mm_malloc(constructed_uri_len)) == NULL) event_err(1, "%s: failed to register rpc at %s", __func__, uri); memcpy(constructed_uri, EVRPC_URI_PREFIX, strlen(EVRPC_URI_PREFIX)); memcpy(constructed_uri + strlen(EVRPC_URI_PREFIX), uri, strlen(uri)); constructed_uri[constructed_uri_len - 1] = '\0'; return (constructed_uri); } int evrpc_register_rpc(struct evrpc_base *base, struct evrpc *rpc, void (*cb)(struct evrpc_req_generic *, void *), void *cb_arg) { char *constructed_uri = evrpc_construct_uri(rpc->uri); rpc->base = base; rpc->cb = cb; rpc->cb_arg = cb_arg; TAILQ_INSERT_TAIL(&base->registered_rpcs, rpc, next); evhttp_set_cb(base->http_server, constructed_uri, evrpc_request_cb, rpc); mm_free(constructed_uri); return (0); } int evrpc_unregister_rpc(struct evrpc_base *base, const char *name) { char *registered_uri = NULL; struct evrpc *rpc; int r; /* find the right rpc; linear search might be slow */ TAILQ_FOREACH(rpc, &base->registered_rpcs, next) { if (strcmp(rpc->uri, name) == 0) break; } if (rpc == NULL) { /* We did not find an RPC with this name */ return (-1); } TAILQ_REMOVE(&base->registered_rpcs, rpc, next); registered_uri = evrpc_construct_uri(name); /* remove the http server callback */ r = evhttp_del_cb(base->http_server, registered_uri); EVUTIL_ASSERT(r == 0); mm_free(registered_uri); mm_free((char *)rpc->uri); mm_free(rpc); return (0); } static int evrpc_pause_request(void *vbase, void *ctx, void (*cb)(void *, enum EVRPC_HOOK_RESULT)); static void evrpc_request_cb_closure(void *, enum EVRPC_HOOK_RESULT); static void evrpc_request_cb(struct evhttp_request *req, void *arg) { struct evrpc *rpc = arg; struct evrpc_req_generic *rpc_state = NULL; /* let's verify the outside parameters */ if (req->type != EVHTTP_REQ_POST || evbuffer_get_length(req->input_buffer) <= 0) goto error; rpc_state = mm_calloc(1, sizeof(struct evrpc_req_generic)); if (rpc_state == NULL) goto error; rpc_state->rpc = rpc; rpc_state->http_req = req; rpc_state->rpc_data = NULL; if (TAILQ_FIRST(&rpc->base->input_hooks) != NULL) { int hook_res; evrpc_hook_associate_meta(&rpc_state->hook_meta, req->evcon); /* * allow hooks to modify the outgoing request */ hook_res = evrpc_process_hooks(&rpc->base->input_hooks, rpc_state, req, req->input_buffer); switch (hook_res) { case EVRPC_TERMINATE: goto error; case EVRPC_PAUSE: evrpc_pause_request(rpc->base, rpc_state, evrpc_request_cb_closure); return; case EVRPC_CONTINUE: break; default: EVUTIL_ASSERT(hook_res == EVRPC_TERMINATE || hook_res == EVRPC_CONTINUE || hook_res == EVRPC_PAUSE); } } evrpc_request_cb_closure(rpc_state, EVRPC_CONTINUE); return; error: if (rpc_state != NULL) evrpc_reqstate_free(rpc_state); evhttp_send_error(req, HTTP_SERVUNAVAIL, NULL); return; } static void evrpc_request_cb_closure(void *arg, enum EVRPC_HOOK_RESULT hook_res) { struct evrpc_req_generic *rpc_state = arg; struct evrpc *rpc; struct evhttp_request *req; EVUTIL_ASSERT(rpc_state); rpc = rpc_state->rpc; req = rpc_state->http_req; if (hook_res == EVRPC_TERMINATE) goto error; /* let's check that we can parse the request */ rpc_state->request = rpc->request_new(rpc->request_new_arg); if (rpc_state->request == NULL) goto error; if (rpc->request_unmarshal( rpc_state->request, req->input_buffer) == -1) { /* we failed to parse the request; that's a bummer */ goto error; } /* at this point, we have a well formed request, prepare the reply */ rpc_state->reply = rpc->reply_new(rpc->reply_new_arg); if (rpc_state->reply == NULL) goto error; /* give the rpc to the user; they can deal with it */ rpc->cb(rpc_state, rpc->cb_arg); return; error: if (rpc_state != NULL) evrpc_reqstate_free(rpc_state); evhttp_send_error(req, HTTP_SERVUNAVAIL, NULL); return; } void evrpc_reqstate_free(struct evrpc_req_generic* rpc_state) { struct evrpc *rpc; EVUTIL_ASSERT(rpc_state != NULL); rpc = rpc_state->rpc; /* clean up all memory */ if (rpc_state->hook_meta != NULL) evrpc_hook_context_free(rpc_state->hook_meta); if (rpc_state->request != NULL) rpc->request_free(rpc_state->request); if (rpc_state->reply != NULL) rpc->reply_free(rpc_state->reply); if (rpc_state->rpc_data != NULL) evbuffer_free(rpc_state->rpc_data); mm_free(rpc_state); } static void evrpc_request_done_closure(void *, enum EVRPC_HOOK_RESULT); void evrpc_request_done(struct evrpc_req_generic *rpc_state) { struct evhttp_request *req; struct evrpc *rpc; EVUTIL_ASSERT(rpc_state); req = rpc_state->http_req; rpc = rpc_state->rpc; if (rpc->reply_complete(rpc_state->reply) == -1) { /* the reply was not completely filled in. error out */ goto error; } if ((rpc_state->rpc_data = evbuffer_new()) == NULL) { /* out of memory */ goto error; } /* serialize the reply */ rpc->reply_marshal(rpc_state->rpc_data, rpc_state->reply); if (TAILQ_FIRST(&rpc->base->output_hooks) != NULL) { int hook_res; evrpc_hook_associate_meta(&rpc_state->hook_meta, req->evcon); /* do hook based tweaks to the request */ hook_res = evrpc_process_hooks(&rpc->base->output_hooks, rpc_state, req, rpc_state->rpc_data); switch (hook_res) { case EVRPC_TERMINATE: goto error; case EVRPC_PAUSE: if (evrpc_pause_request(rpc->base, rpc_state, evrpc_request_done_closure) == -1) goto error; return; case EVRPC_CONTINUE: break; default: EVUTIL_ASSERT(hook_res == EVRPC_TERMINATE || hook_res == EVRPC_CONTINUE || hook_res == EVRPC_PAUSE); } } evrpc_request_done_closure(rpc_state, EVRPC_CONTINUE); return; error: if (rpc_state != NULL) evrpc_reqstate_free(rpc_state); evhttp_send_error(req, HTTP_SERVUNAVAIL, NULL); return; } void * evrpc_get_request(struct evrpc_req_generic *req) { return req->request; } void * evrpc_get_reply(struct evrpc_req_generic *req) { return req->reply; } static void evrpc_request_done_closure(void *arg, enum EVRPC_HOOK_RESULT hook_res) { struct evrpc_req_generic *rpc_state = arg; struct evhttp_request *req; EVUTIL_ASSERT(rpc_state); req = rpc_state->http_req; if (hook_res == EVRPC_TERMINATE) goto error; /* on success, we are going to transmit marshaled binary data */ if (evhttp_find_header(req->output_headers, "Content-Type") == NULL) { evhttp_add_header(req->output_headers, "Content-Type", "application/octet-stream"); } evhttp_send_reply(req, HTTP_OK, "OK", rpc_state->rpc_data); evrpc_reqstate_free(rpc_state); return; error: if (rpc_state != NULL) evrpc_reqstate_free(rpc_state); evhttp_send_error(req, HTTP_SERVUNAVAIL, NULL); return; } /* Client implementation of RPC site */ static int evrpc_schedule_request(struct evhttp_connection *connection, struct evrpc_request_wrapper *ctx); struct evrpc_pool * evrpc_pool_new(struct event_base *base) { struct evrpc_pool *pool = mm_calloc(1, sizeof(struct evrpc_pool)); if (pool == NULL) return (NULL); TAILQ_INIT(&pool->connections); TAILQ_INIT(&pool->requests); TAILQ_INIT(&pool->paused_requests); TAILQ_INIT(&pool->input_hooks); TAILQ_INIT(&pool->output_hooks); pool->base = base; pool->timeout = -1; return (pool); } static void evrpc_request_wrapper_free(struct evrpc_request_wrapper *request) { if (request->hook_meta != NULL) evrpc_hook_context_free(request->hook_meta); mm_free(request->name); mm_free(request); } void evrpc_pool_free(struct evrpc_pool *pool) { struct evhttp_connection *connection; struct evrpc_request_wrapper *request; struct evrpc_hook_ctx *pause; struct evrpc_hook *hook; int r; while ((request = TAILQ_FIRST(&pool->requests)) != NULL) { TAILQ_REMOVE(&pool->requests, request, next); evrpc_request_wrapper_free(request); } while ((pause = TAILQ_FIRST(&pool->paused_requests)) != NULL) { TAILQ_REMOVE(&pool->paused_requests, pause, next); mm_free(pause); } while ((connection = TAILQ_FIRST(&pool->connections)) != NULL) { TAILQ_REMOVE(&pool->connections, connection, next); evhttp_connection_free(connection); } while ((hook = TAILQ_FIRST(&pool->input_hooks)) != NULL) { r = evrpc_remove_hook(pool, EVRPC_INPUT, hook); EVUTIL_ASSERT(r); } while ((hook = TAILQ_FIRST(&pool->output_hooks)) != NULL) { r = evrpc_remove_hook(pool, EVRPC_OUTPUT, hook); EVUTIL_ASSERT(r); } mm_free(pool); } /* * Add a connection to the RPC pool. A request scheduled on the pool * may use any available connection. */ void evrpc_pool_add_connection(struct evrpc_pool *pool, struct evhttp_connection *connection) { EVUTIL_ASSERT(connection->http_server == NULL); TAILQ_INSERT_TAIL(&pool->connections, connection, next); /* * associate an event base with this connection */ if (pool->base != NULL) evhttp_connection_set_base(connection, pool->base); /* * unless a timeout was specifically set for a connection, * the connection inherits the timeout from the pool. */ if (connection->timeout == -1) connection->timeout = pool->timeout; /* * if we have any requests pending, schedule them with the new * connections. */ if (TAILQ_FIRST(&pool->requests) != NULL) { struct evrpc_request_wrapper *request = TAILQ_FIRST(&pool->requests); TAILQ_REMOVE(&pool->requests, request, next); evrpc_schedule_request(connection, request); } } void evrpc_pool_remove_connection(struct evrpc_pool *pool, struct evhttp_connection *connection) { TAILQ_REMOVE(&pool->connections, connection, next); } void evrpc_pool_set_timeout(struct evrpc_pool *pool, int timeout_in_secs) { struct evhttp_connection *evcon; TAILQ_FOREACH(evcon, &pool->connections, next) { evcon->timeout = timeout_in_secs; } pool->timeout = timeout_in_secs; } static void evrpc_reply_done(struct evhttp_request *, void *); static void evrpc_request_timeout(evutil_socket_t, short, void *); /* * Finds a connection object associated with the pool that is currently * idle and can be used to make a request. */ static struct evhttp_connection * evrpc_pool_find_connection(struct evrpc_pool *pool) { struct evhttp_connection *connection; TAILQ_FOREACH(connection, &pool->connections, next) { if (TAILQ_FIRST(&connection->requests) == NULL) return (connection); } return (NULL); } /* * Prototypes responsible for evrpc scheduling and hooking */ static void evrpc_schedule_request_closure(void *ctx, enum EVRPC_HOOK_RESULT); /* * We assume that the ctx is no longer queued on the pool. */ static int evrpc_schedule_request(struct evhttp_connection *connection, struct evrpc_request_wrapper *ctx) { struct evhttp_request *req = NULL; struct evrpc_pool *pool = ctx->pool; struct evrpc_status status; if ((req = evhttp_request_new(evrpc_reply_done, ctx)) == NULL) goto error; /* serialize the request data into the output buffer */ ctx->request_marshal(req->output_buffer, ctx->request); /* we need to know the connection that we might have to abort */ ctx->evcon = connection; /* if we get paused we also need to know the request */ ctx->req = req; if (TAILQ_FIRST(&pool->output_hooks) != NULL) { int hook_res; evrpc_hook_associate_meta(&ctx->hook_meta, connection); /* apply hooks to the outgoing request */ hook_res = evrpc_process_hooks(&pool->output_hooks, ctx, req, req->output_buffer); switch (hook_res) { case EVRPC_TERMINATE: goto error; case EVRPC_PAUSE: /* we need to be explicitly resumed */ if (evrpc_pause_request(pool, ctx, evrpc_schedule_request_closure) == -1) goto error; return (0); case EVRPC_CONTINUE: /* we can just continue */ break; default: EVUTIL_ASSERT(hook_res == EVRPC_TERMINATE || hook_res == EVRPC_CONTINUE || hook_res == EVRPC_PAUSE); } } evrpc_schedule_request_closure(ctx, EVRPC_CONTINUE); return (0); error: memset(&status, 0, sizeof(status)); status.error = EVRPC_STATUS_ERR_UNSTARTED; (*ctx->cb)(&status, ctx->request, ctx->reply, ctx->cb_arg); evrpc_request_wrapper_free(ctx); return (-1); } static void evrpc_schedule_request_closure(void *arg, enum EVRPC_HOOK_RESULT hook_res) { struct evrpc_request_wrapper *ctx = arg; struct evhttp_connection *connection = ctx->evcon; struct evhttp_request *req = ctx->req; struct evrpc_pool *pool = ctx->pool; struct evrpc_status status; char *uri = NULL; int res = 0; if (hook_res == EVRPC_TERMINATE) goto error; uri = evrpc_construct_uri(ctx->name); if (uri == NULL) goto error; if (pool->timeout > 0) { /* * a timeout after which the whole rpc is going to be aborted. */ struct timeval tv; evutil_timerclear(&tv); tv.tv_sec = pool->timeout; evtimer_add(&ctx->ev_timeout, &tv); } /* start the request over the connection */ res = evhttp_make_request(connection, req, EVHTTP_REQ_POST, uri); mm_free(uri); if (res == -1) goto error; return; error: memset(&status, 0, sizeof(status)); status.error = EVRPC_STATUS_ERR_UNSTARTED; (*ctx->cb)(&status, ctx->request, ctx->reply, ctx->cb_arg); evrpc_request_wrapper_free(ctx); } /* we just queue the paused request on the pool under the req object */ static int evrpc_pause_request(void *vbase, void *ctx, void (*cb)(void *, enum EVRPC_HOOK_RESULT)) { struct _evrpc_hooks *base = vbase; struct evrpc_hook_ctx *pause = mm_malloc(sizeof(*pause)); if (pause == NULL) return (-1); pause->ctx = ctx; pause->cb = cb; TAILQ_INSERT_TAIL(&base->pause_requests, pause, next); return (0); } int evrpc_resume_request(void *vbase, void *ctx, enum EVRPC_HOOK_RESULT res) { struct _evrpc_hooks *base = vbase; struct evrpc_pause_list *head = &base->pause_requests; struct evrpc_hook_ctx *pause; TAILQ_FOREACH(pause, head, next) { if (pause->ctx == ctx) break; } if (pause == NULL) return (-1); (*pause->cb)(pause->ctx, res); TAILQ_REMOVE(head, pause, next); mm_free(pause); return (0); } int evrpc_make_request(struct evrpc_request_wrapper *ctx) { struct evrpc_pool *pool = ctx->pool; /* initialize the event structure for this rpc */ evtimer_assign(&ctx->ev_timeout, pool->base, evrpc_request_timeout, ctx); /* we better have some available connections on the pool */ EVUTIL_ASSERT(TAILQ_FIRST(&pool->connections) != NULL); /* * if no connection is available, we queue the request on the pool, * the next time a connection is empty, the rpc will be send on that. */ TAILQ_INSERT_TAIL(&pool->requests, ctx, next); evrpc_pool_schedule(pool); return (0); } struct evrpc_request_wrapper * evrpc_make_request_ctx( struct evrpc_pool *pool, void *request, void *reply, const char *rpcname, void (*req_marshal)(struct evbuffer*, void *), void (*rpl_clear)(void *), int (*rpl_unmarshal)(void *, struct evbuffer *), void (*cb)(struct evrpc_status *, void *, void *, void *), void *cbarg) { struct evrpc_request_wrapper *ctx = (struct evrpc_request_wrapper *) mm_malloc(sizeof(struct evrpc_request_wrapper)); if (ctx == NULL) return (NULL); ctx->pool = pool; ctx->hook_meta = NULL; ctx->evcon = NULL; ctx->name = mm_strdup(rpcname); if (ctx->name == NULL) { mm_free(ctx); return (NULL); } ctx->cb = cb; ctx->cb_arg = cbarg; ctx->request = request; ctx->reply = reply; ctx->request_marshal = req_marshal; ctx->reply_clear = rpl_clear; ctx->reply_unmarshal = rpl_unmarshal; return (ctx); } static void evrpc_reply_done_closure(void *, enum EVRPC_HOOK_RESULT); static void evrpc_reply_done(struct evhttp_request *req, void *arg) { struct evrpc_request_wrapper *ctx = arg; struct evrpc_pool *pool = ctx->pool; int hook_res = EVRPC_CONTINUE; /* cancel any timeout we might have scheduled */ event_del(&ctx->ev_timeout); ctx->req = req; /* we need to get the reply now */ if (req == NULL) { evrpc_reply_done_closure(ctx, EVRPC_CONTINUE); return; } if (TAILQ_FIRST(&pool->input_hooks) != NULL) { evrpc_hook_associate_meta(&ctx->hook_meta, ctx->evcon); /* apply hooks to the incoming request */ hook_res = evrpc_process_hooks(&pool->input_hooks, ctx, req, req->input_buffer); switch (hook_res) { case EVRPC_TERMINATE: case EVRPC_CONTINUE: break; case EVRPC_PAUSE: /* * if we get paused we also need to know the * request. unfortunately, the underlying * layer is going to free it. we need to * request ownership explicitly */ if (req != NULL) evhttp_request_own(req); evrpc_pause_request(pool, ctx, evrpc_reply_done_closure); return; default: EVUTIL_ASSERT(hook_res == EVRPC_TERMINATE || hook_res == EVRPC_CONTINUE || hook_res == EVRPC_PAUSE); } } evrpc_reply_done_closure(ctx, hook_res); /* http request is being freed by underlying layer */ } static void evrpc_reply_done_closure(void *arg, enum EVRPC_HOOK_RESULT hook_res) { struct evrpc_request_wrapper *ctx = arg; struct evhttp_request *req = ctx->req; struct evrpc_pool *pool = ctx->pool; struct evrpc_status status; int res = -1; memset(&status, 0, sizeof(status)); status.http_req = req; /* we need to get the reply now */ if (req == NULL) { status.error = EVRPC_STATUS_ERR_TIMEOUT; } else if (hook_res == EVRPC_TERMINATE) { status.error = EVRPC_STATUS_ERR_HOOKABORTED; } else { res = ctx->reply_unmarshal(ctx->reply, req->input_buffer); if (res == -1) status.error = EVRPC_STATUS_ERR_BADPAYLOAD; } if (res == -1) { /* clear everything that we might have written previously */ ctx->reply_clear(ctx->reply); } (*ctx->cb)(&status, ctx->request, ctx->reply, ctx->cb_arg); evrpc_request_wrapper_free(ctx); /* the http layer owned the original request structure, but if we * got paused, we asked for ownership and need to free it here. */ if (req != NULL && evhttp_request_is_owned(req)) evhttp_request_free(req); /* see if we can schedule another request */ evrpc_pool_schedule(pool); } static void evrpc_pool_schedule(struct evrpc_pool *pool) { struct evrpc_request_wrapper *ctx = TAILQ_FIRST(&pool->requests); struct evhttp_connection *evcon; /* if no requests are pending, we have no work */ if (ctx == NULL) return; if ((evcon = evrpc_pool_find_connection(pool)) != NULL) { TAILQ_REMOVE(&pool->requests, ctx, next); evrpc_schedule_request(evcon, ctx); } } static void evrpc_request_timeout(evutil_socket_t fd, short what, void *arg) { struct evrpc_request_wrapper *ctx = arg; struct evhttp_connection *evcon = ctx->evcon; EVUTIL_ASSERT(evcon != NULL); evhttp_connection_fail(evcon, EVCON_HTTP_TIMEOUT); } /* * frees potential meta data associated with a request. */ static void evrpc_meta_data_free(struct evrpc_meta_list *meta_data) { struct evrpc_meta *entry; EVUTIL_ASSERT(meta_data != NULL); while ((entry = TAILQ_FIRST(meta_data)) != NULL) { TAILQ_REMOVE(meta_data, entry, next); mm_free(entry->key); mm_free(entry->data); mm_free(entry); } } static struct evrpc_hook_meta * evrpc_hook_meta_new(void) { struct evrpc_hook_meta *ctx; ctx = mm_malloc(sizeof(struct evrpc_hook_meta)); EVUTIL_ASSERT(ctx != NULL); TAILQ_INIT(&ctx->meta_data); ctx->evcon = NULL; return (ctx); } static void evrpc_hook_associate_meta(struct evrpc_hook_meta **pctx, struct evhttp_connection *evcon) { struct evrpc_hook_meta *ctx = *pctx; if (ctx == NULL) *pctx = ctx = evrpc_hook_meta_new(); ctx->evcon = evcon; } static void evrpc_hook_context_free(struct evrpc_hook_meta *ctx) { evrpc_meta_data_free(&ctx->meta_data); mm_free(ctx); } /* Adds meta data */ void evrpc_hook_add_meta(void *ctx, const char *key, const void *data, size_t data_size) { struct evrpc_request_wrapper *req = ctx; struct evrpc_hook_meta *store = NULL; struct evrpc_meta *meta = NULL; if ((store = req->hook_meta) == NULL) store = req->hook_meta = evrpc_hook_meta_new(); meta = mm_malloc(sizeof(struct evrpc_meta)); EVUTIL_ASSERT(meta != NULL); meta->key = mm_strdup(key); EVUTIL_ASSERT(meta->key != NULL); meta->data_size = data_size; meta->data = mm_malloc(data_size); EVUTIL_ASSERT(meta->data != NULL); memcpy(meta->data, data, data_size); TAILQ_INSERT_TAIL(&store->meta_data, meta, next); } int evrpc_hook_find_meta(void *ctx, const char *key, void **data, size_t *data_size) { struct evrpc_request_wrapper *req = ctx; struct evrpc_meta *meta = NULL; if (req->hook_meta == NULL) return (-1); TAILQ_FOREACH(meta, &req->hook_meta->meta_data, next) { if (strcmp(meta->key, key) == 0) { *data = meta->data; *data_size = meta->data_size; return (0); } } return (-1); } struct evhttp_connection * evrpc_hook_get_connection(void *ctx) { struct evrpc_request_wrapper *req = ctx; return (req->hook_meta != NULL ? req->hook_meta->evcon : NULL); } int evrpc_send_request_generic(struct evrpc_pool *pool, void *request, void *reply, void (*cb)(struct evrpc_status *, void *, void *, void *), void *cb_arg, const char *rpcname, void (*req_marshal)(struct evbuffer *, void *), void (*rpl_clear)(void *), int (*rpl_unmarshal)(void *, struct evbuffer *)) { struct evrpc_status status; struct evrpc_request_wrapper *ctx; ctx = evrpc_make_request_ctx(pool, request, reply, rpcname, req_marshal, rpl_clear, rpl_unmarshal, cb, cb_arg); if (ctx == NULL) goto error; return (evrpc_make_request(ctx)); error: memset(&status, 0, sizeof(status)); status.error = EVRPC_STATUS_ERR_UNSTARTED; (*(cb))(&status, request, reply, cb_arg); return (-1); } /** Takes a request object and fills it in with the right magic */ static struct evrpc * evrpc_register_object(const char *name, void *(*req_new)(void*), void *req_new_arg, void (*req_free)(void *), int (*req_unmarshal)(void *, struct evbuffer *), void *(*rpl_new)(void*), void *rpl_new_arg, void (*rpl_free)(void *), int (*rpl_complete)(void *), void (*rpl_marshal)(struct evbuffer *, void *)) { struct evrpc* rpc = (struct evrpc *)mm_calloc(1, sizeof(struct evrpc)); if (rpc == NULL) return (NULL); rpc->uri = mm_strdup(name); if (rpc->uri == NULL) { mm_free(rpc); return (NULL); } rpc->request_new = req_new; rpc->request_new_arg = req_new_arg; rpc->request_free = req_free; rpc->request_unmarshal = req_unmarshal; rpc->reply_new = rpl_new; rpc->reply_new_arg = rpl_new_arg; rpc->reply_free = rpl_free; rpc->reply_complete = rpl_complete; rpc->reply_marshal = rpl_marshal; return (rpc); } int evrpc_register_generic(struct evrpc_base *base, const char *name, void (*callback)(struct evrpc_req_generic *, void *), void *cbarg, void *(*req_new)(void *), void *req_new_arg, void (*req_free)(void *), int (*req_unmarshal)(void *, struct evbuffer *), void *(*rpl_new)(void *), void *rpl_new_arg, void (*rpl_free)(void *), int (*rpl_complete)(void *), void (*rpl_marshal)(struct evbuffer *, void *)) { struct evrpc* rpc = evrpc_register_object(name, req_new, req_new_arg, req_free, req_unmarshal, rpl_new, rpl_new_arg, rpl_free, rpl_complete, rpl_marshal); if (rpc == NULL) return (-1); evrpc_register_rpc(base, rpc, (void (*)(struct evrpc_req_generic*, void *))callback, cbarg); return (0); } /** accessors for obscure and undocumented functionality */ struct evrpc_pool * evrpc_request_get_pool(struct evrpc_request_wrapper *ctx) { return (ctx->pool); } void evrpc_request_set_pool(struct evrpc_request_wrapper *ctx, struct evrpc_pool *pool) { ctx->pool = pool; } void evrpc_request_set_cb(struct evrpc_request_wrapper *ctx, void (*cb)(struct evrpc_status*, void *request, void *reply, void *arg), void *cb_arg) { ctx->cb = cb; ctx->cb_arg = cb_arg; } dnscrypt-proxy-1.9.4/src/libevent-modified/evrpc.h000644 000765 000024 00000003662 13037731714 021630 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVRPC_H_ #define _EVRPC_H_ /** @file evrpc.h An RPC system for Libevent. The header is deprecated in Libevent 2.0 and later; please use instead. Depending on what functionality you need, you may also want to include more of the other headers. */ #include #include #include #include #endif /* _EVRPC_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evsignal-internal.h000644 000765 000024 00000004760 13037731714 024133 0ustar00jstaff000000 000000 /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVSIGNAL_H_ #define _EVSIGNAL_H_ #ifndef evutil_socket_t #include "event2/util.h" #endif #include typedef void (*ev_sighandler_t)(int); /* Data structure for the default signal-handling implementation in signal.c */ struct evsig_info { /* Event watching ev_signal_pair[1] */ struct event ev_signal; /* Socketpair used to send notifications from the signal handler */ evutil_socket_t ev_signal_pair[2]; /* True iff we've added the ev_signal event yet. */ int ev_signal_added; /* Count of the number of signals we're currently watching. */ int ev_n_signals_added; /* Array of previous signal handler objects before Libevent started * messing with them. Used to restore old signal handlers. */ #ifdef _EVENT_HAVE_SIGACTION struct sigaction **sh_old; #else ev_sighandler_t **sh_old; #endif /* Size of sh_old. */ int sh_old_max; }; int evsig_init(struct event_base *); void evsig_dealloc(struct event_base *); void evsig_set_base(struct event_base *base); #endif /* _EVSIGNAL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evthread-internal.h000644 000765 000024 00000033045 13037731714 024123 0ustar00jstaff000000 000000 /* * Copyright (c) 2008-2012 Niels Provos, Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVTHREAD_INTERNAL_H_ #define _EVTHREAD_INTERNAL_H_ #ifdef __cplusplus extern "C" { #endif #include "event2/thread.h" #include "event2/event-config.h" #include "util-internal.h" struct event_base; #ifndef WIN32 /* On Windows, the way we currently make DLLs, it's not allowed for us to * have shared global structures. Thus, we only do the direct-call-to-function * code path if we know that the local shared library system supports it. */ #define EVTHREAD_EXPOSE_STRUCTS #endif #if ! defined(_EVENT_DISABLE_THREAD_SUPPORT) && defined(EVTHREAD_EXPOSE_STRUCTS) /* Global function pointers to lock-related functions. NULL if locking isn't enabled. */ extern struct evthread_lock_callbacks _evthread_lock_fns; extern struct evthread_condition_callbacks _evthread_cond_fns; extern unsigned long (*_evthread_id_fn)(void); extern int _evthread_lock_debugging_enabled; /** Return the ID of the current thread, or 1 if threading isn't enabled. */ #define EVTHREAD_GET_ID() \ (_evthread_id_fn ? _evthread_id_fn() : 1) /** Return true iff we're in the thread that is currently (or most recently) * running a given event_base's loop. Requires lock. */ #define EVBASE_IN_THREAD(base) \ (_evthread_id_fn == NULL || \ (base)->th_owner_id == _evthread_id_fn()) /** Return true iff we need to notify the base's main thread about changes to * its state, because it's currently running the main loop in another * thread. Requires lock. */ #define EVBASE_NEED_NOTIFY(base) \ (_evthread_id_fn != NULL && \ (base)->running_loop && \ (base)->th_owner_id != _evthread_id_fn()) /** Allocate a new lock, and store it in lockvar, a void*. Sets lockvar to NULL if locking is not enabled. */ #define EVTHREAD_ALLOC_LOCK(lockvar, locktype) \ ((lockvar) = _evthread_lock_fns.alloc ? \ _evthread_lock_fns.alloc(locktype) : NULL) /** Free a given lock, if it is present and locking is enabled. */ #define EVTHREAD_FREE_LOCK(lockvar, locktype) \ do { \ void *_lock_tmp_ = (lockvar); \ if (_lock_tmp_ && _evthread_lock_fns.free) \ _evthread_lock_fns.free(_lock_tmp_, (locktype)); \ } while (0) /** Acquire a lock. */ #define EVLOCK_LOCK(lockvar,mode) \ do { \ if (lockvar) \ _evthread_lock_fns.lock(mode, lockvar); \ } while (0) /** Release a lock */ #define EVLOCK_UNLOCK(lockvar,mode) \ do { \ if (lockvar) \ _evthread_lock_fns.unlock(mode, lockvar); \ } while (0) /** Helper: put lockvar1 and lockvar2 into pointerwise ascending order. */ #define _EVLOCK_SORTLOCKS(lockvar1, lockvar2) \ do { \ if (lockvar1 && lockvar2 && lockvar1 > lockvar2) { \ void *tmp = lockvar1; \ lockvar1 = lockvar2; \ lockvar2 = tmp; \ } \ } while (0) /** Lock an event_base, if it is set up for locking. Acquires the lock in the base structure whose field is named 'lockvar'. */ #define EVBASE_ACQUIRE_LOCK(base, lockvar) do { \ EVLOCK_LOCK((base)->lockvar, 0); \ } while (0) /** Unlock an event_base, if it is set up for locking. */ #define EVBASE_RELEASE_LOCK(base, lockvar) do { \ EVLOCK_UNLOCK((base)->lockvar, 0); \ } while (0) /** If lock debugging is enabled, and lock is non-null, assert that 'lock' is * locked and held by us. */ #define EVLOCK_ASSERT_LOCKED(lock) \ do { \ if ((lock) && _evthread_lock_debugging_enabled) { \ EVUTIL_ASSERT(_evthread_is_debug_lock_held(lock)); \ } \ } while (0) /** Try to grab the lock for 'lockvar' without blocking, and return 1 if we * manage to get it. */ static inline int EVLOCK_TRY_LOCK(void *lock); static inline int EVLOCK_TRY_LOCK(void *lock) { if (lock && _evthread_lock_fns.lock) { int r = _evthread_lock_fns.lock(EVTHREAD_TRY, lock); return !r; } else { /* Locking is disabled either globally or for this thing; * of course we count as having the lock. */ return 1; } } /** Allocate a new condition variable and store it in the void *, condvar */ #define EVTHREAD_ALLOC_COND(condvar) \ do { \ (condvar) = _evthread_cond_fns.alloc_condition ? \ _evthread_cond_fns.alloc_condition(0) : NULL; \ } while (0) /** Deallocate and free a condition variable in condvar */ #define EVTHREAD_FREE_COND(cond) \ do { \ if (cond) \ _evthread_cond_fns.free_condition((cond)); \ } while (0) /** Signal one thread waiting on cond */ #define EVTHREAD_COND_SIGNAL(cond) \ ( (cond) ? _evthread_cond_fns.signal_condition((cond), 0) : 0 ) /** Signal all threads waiting on cond */ #define EVTHREAD_COND_BROADCAST(cond) \ ( (cond) ? _evthread_cond_fns.signal_condition((cond), 1) : 0 ) /** Wait until the condition 'cond' is signalled. Must be called while * holding 'lock'. The lock will be released until the condition is * signalled, at which point it will be acquired again. Returns 0 for * success, -1 for failure. */ #define EVTHREAD_COND_WAIT(cond, lock) \ ( (cond) ? _evthread_cond_fns.wait_condition((cond), (lock), NULL) : 0 ) /** As EVTHREAD_COND_WAIT, but gives up after 'tv' has elapsed. Returns 1 * on timeout. */ #define EVTHREAD_COND_WAIT_TIMED(cond, lock, tv) \ ( (cond) ? _evthread_cond_fns.wait_condition((cond), (lock), (tv)) : 0 ) /** True iff locking functions have been configured. */ #define EVTHREAD_LOCKING_ENABLED() \ (_evthread_lock_fns.lock != NULL) #elif ! defined(_EVENT_DISABLE_THREAD_SUPPORT) unsigned long _evthreadimpl_get_id(void); int _evthreadimpl_is_lock_debugging_enabled(void); void *_evthreadimpl_lock_alloc(unsigned locktype); void _evthreadimpl_lock_free(void *lock, unsigned locktype); int _evthreadimpl_lock_lock(unsigned mode, void *lock); int _evthreadimpl_lock_unlock(unsigned mode, void *lock); void *_evthreadimpl_cond_alloc(unsigned condtype); void _evthreadimpl_cond_free(void *cond); int _evthreadimpl_cond_signal(void *cond, int broadcast); int _evthreadimpl_cond_wait(void *cond, void *lock, const struct timeval *tv); int _evthreadimpl_locking_enabled(void); #define EVTHREAD_GET_ID() _evthreadimpl_get_id() #define EVBASE_IN_THREAD(base) \ ((base)->th_owner_id == _evthreadimpl_get_id()) #define EVBASE_NEED_NOTIFY(base) \ ((base)->running_loop && \ ((base)->th_owner_id != _evthreadimpl_get_id())) #define EVTHREAD_ALLOC_LOCK(lockvar, locktype) \ ((lockvar) = _evthreadimpl_lock_alloc(locktype)) #define EVTHREAD_FREE_LOCK(lockvar, locktype) \ do { \ void *_lock_tmp_ = (lockvar); \ if (_lock_tmp_) \ _evthreadimpl_lock_free(_lock_tmp_, (locktype)); \ } while (0) /** Acquire a lock. */ #define EVLOCK_LOCK(lockvar,mode) \ do { \ if (lockvar) \ _evthreadimpl_lock_lock(mode, lockvar); \ } while (0) /** Release a lock */ #define EVLOCK_UNLOCK(lockvar,mode) \ do { \ if (lockvar) \ _evthreadimpl_lock_unlock(mode, lockvar); \ } while (0) /** Lock an event_base, if it is set up for locking. Acquires the lock in the base structure whose field is named 'lockvar'. */ #define EVBASE_ACQUIRE_LOCK(base, lockvar) do { \ EVLOCK_LOCK((base)->lockvar, 0); \ } while (0) /** Unlock an event_base, if it is set up for locking. */ #define EVBASE_RELEASE_LOCK(base, lockvar) do { \ EVLOCK_UNLOCK((base)->lockvar, 0); \ } while (0) /** If lock debugging is enabled, and lock is non-null, assert that 'lock' is * locked and held by us. */ #define EVLOCK_ASSERT_LOCKED(lock) \ do { \ if ((lock) && _evthreadimpl_is_lock_debugging_enabled()) { \ EVUTIL_ASSERT(_evthread_is_debug_lock_held(lock)); \ } \ } while (0) /** Try to grab the lock for 'lockvar' without blocking, and return 1 if we * manage to get it. */ static inline int EVLOCK_TRY_LOCK(void *lock); static inline int EVLOCK_TRY_LOCK(void *lock) { if (lock) { int r = _evthreadimpl_lock_lock(EVTHREAD_TRY, lock); return !r; } else { /* Locking is disabled either globally or for this thing; * of course we count as having the lock. */ return 1; } } /** Allocate a new condition variable and store it in the void *, condvar */ #define EVTHREAD_ALLOC_COND(condvar) \ do { \ (condvar) = _evthreadimpl_cond_alloc(0); \ } while (0) /** Deallocate and free a condition variable in condvar */ #define EVTHREAD_FREE_COND(cond) \ do { \ if (cond) \ _evthreadimpl_cond_free((cond)); \ } while (0) /** Signal one thread waiting on cond */ #define EVTHREAD_COND_SIGNAL(cond) \ ( (cond) ? _evthreadimpl_cond_signal((cond), 0) : 0 ) /** Signal all threads waiting on cond */ #define EVTHREAD_COND_BROADCAST(cond) \ ( (cond) ? _evthreadimpl_cond_signal((cond), 1) : 0 ) /** Wait until the condition 'cond' is signalled. Must be called while * holding 'lock'. The lock will be released until the condition is * signalled, at which point it will be acquired again. Returns 0 for * success, -1 for failure. */ #define EVTHREAD_COND_WAIT(cond, lock) \ ( (cond) ? _evthreadimpl_cond_wait((cond), (lock), NULL) : 0 ) /** As EVTHREAD_COND_WAIT, but gives up after 'tv' has elapsed. Returns 1 * on timeout. */ #define EVTHREAD_COND_WAIT_TIMED(cond, lock, tv) \ ( (cond) ? _evthreadimpl_cond_wait((cond), (lock), (tv)) : 0 ) #define EVTHREAD_LOCKING_ENABLED() \ (_evthreadimpl_locking_enabled()) #else /* _EVENT_DISABLE_THREAD_SUPPORT */ #define EVTHREAD_GET_ID() 1 #define EVTHREAD_ALLOC_LOCK(lockvar, locktype) _EVUTIL_NIL_STMT #define EVTHREAD_FREE_LOCK(lockvar, locktype) _EVUTIL_NIL_STMT #define EVLOCK_LOCK(lockvar, mode) _EVUTIL_NIL_STMT #define EVLOCK_UNLOCK(lockvar, mode) _EVUTIL_NIL_STMT #define EVLOCK_LOCK2(lock1,lock2,mode1,mode2) _EVUTIL_NIL_STMT #define EVLOCK_UNLOCK2(lock1,lock2,mode1,mode2) _EVUTIL_NIL_STMT #define EVBASE_IN_THREAD(base) 1 #define EVBASE_NEED_NOTIFY(base) 0 #define EVBASE_ACQUIRE_LOCK(base, lock) _EVUTIL_NIL_STMT #define EVBASE_RELEASE_LOCK(base, lock) _EVUTIL_NIL_STMT #define EVLOCK_ASSERT_LOCKED(lock) _EVUTIL_NIL_STMT #define EVLOCK_TRY_LOCK(lock) 1 #define EVTHREAD_ALLOC_COND(condvar) _EVUTIL_NIL_STMT #define EVTHREAD_FREE_COND(cond) _EVUTIL_NIL_STMT #define EVTHREAD_COND_SIGNAL(cond) _EVUTIL_NIL_STMT #define EVTHREAD_COND_BROADCAST(cond) _EVUTIL_NIL_STMT #define EVTHREAD_COND_WAIT(cond, lock) _EVUTIL_NIL_STMT #define EVTHREAD_COND_WAIT_TIMED(cond, lock, howlong) _EVUTIL_NIL_STMT #define EVTHREAD_LOCKING_ENABLED() 0 #endif /* This code is shared between both lock impls */ #if ! defined(_EVENT_DISABLE_THREAD_SUPPORT) /** Helper: put lockvar1 and lockvar2 into pointerwise ascending order. */ #define _EVLOCK_SORTLOCKS(lockvar1, lockvar2) \ do { \ if (lockvar1 && lockvar2 && lockvar1 > lockvar2) { \ void *tmp = lockvar1; \ lockvar1 = lockvar2; \ lockvar2 = tmp; \ } \ } while (0) /** Acquire both lock1 and lock2. Always allocates locks in the same order, * so that two threads locking two locks with LOCK2 will not deadlock. */ #define EVLOCK_LOCK2(lock1,lock2,mode1,mode2) \ do { \ void *_lock1_tmplock = (lock1); \ void *_lock2_tmplock = (lock2); \ _EVLOCK_SORTLOCKS(_lock1_tmplock,_lock2_tmplock); \ EVLOCK_LOCK(_lock1_tmplock,mode1); \ if (_lock2_tmplock != _lock1_tmplock) \ EVLOCK_LOCK(_lock2_tmplock,mode2); \ } while (0) /** Release both lock1 and lock2. */ #define EVLOCK_UNLOCK2(lock1,lock2,mode1,mode2) \ do { \ void *_lock1_tmplock = (lock1); \ void *_lock2_tmplock = (lock2); \ _EVLOCK_SORTLOCKS(_lock1_tmplock,_lock2_tmplock); \ if (_lock2_tmplock != _lock1_tmplock) \ EVLOCK_UNLOCK(_lock2_tmplock,mode2); \ EVLOCK_UNLOCK(_lock1_tmplock,mode1); \ } while (0) int _evthread_is_debug_lock_held(void *lock); void *_evthread_debug_get_real_lock(void *lock); void *evthread_setup_global_lock_(void *lock_, unsigned locktype, int enable_locks); #define EVTHREAD_SETUP_GLOBAL_LOCK(lockvar, locktype) \ do { \ lockvar = evthread_setup_global_lock_(lockvar, \ (locktype), enable_locks); \ if (!lockvar) { \ event_warn("Couldn't allocate %s", #lockvar); \ return -1; \ } \ } while (0); int event_global_setup_locks_(const int enable_locks); int evsig_global_setup_locks_(const int enable_locks); int evutil_secure_rng_global_setup_locks_(const int enable_locks); #endif #ifdef __cplusplus } #endif #endif /* _EVTHREAD_INTERNAL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evthread.c000644 000765 000024 00000027462 13037731714 022312 0ustar00jstaff000000 000000 /* * Copyright (c) 2008-2012 Niels Provos, Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifndef _EVENT_DISABLE_THREAD_SUPPORT #include "event2/thread.h" #include #include #include "log-internal.h" #include "mm-internal.h" #include "util-internal.h" #include "evthread-internal.h" #ifdef EVTHREAD_EXPOSE_STRUCTS #define GLOBAL #else #define GLOBAL static #endif /* globals */ GLOBAL int _evthread_lock_debugging_enabled = 0; GLOBAL struct evthread_lock_callbacks _evthread_lock_fns = { 0, 0, NULL, NULL, NULL, NULL }; GLOBAL unsigned long (*_evthread_id_fn)(void) = NULL; GLOBAL struct evthread_condition_callbacks _evthread_cond_fns = { 0, NULL, NULL, NULL, NULL }; /* Used for debugging */ static struct evthread_lock_callbacks _original_lock_fns = { 0, 0, NULL, NULL, NULL, NULL }; static struct evthread_condition_callbacks _original_cond_fns = { 0, NULL, NULL, NULL, NULL }; void evthread_set_id_callback(unsigned long (*id_fn)(void)) { _evthread_id_fn = id_fn; } int evthread_set_lock_callbacks(const struct evthread_lock_callbacks *cbs) { struct evthread_lock_callbacks *target = _evthread_lock_debugging_enabled ? &_original_lock_fns : &_evthread_lock_fns; if (!cbs) { if (target->alloc) event_warnx("Trying to disable lock functions after " "they have been set up will probaby not work."); memset(target, 0, sizeof(_evthread_lock_fns)); return 0; } if (target->alloc) { /* Uh oh; we already had locking callbacks set up.*/ if (target->lock_api_version == cbs->lock_api_version && target->supported_locktypes == cbs->supported_locktypes && target->alloc == cbs->alloc && target->free == cbs->free && target->lock == cbs->lock && target->unlock == cbs->unlock) { /* no change -- allow this. */ return 0; } event_warnx("Can't change lock callbacks once they have been " "initialized."); return -1; } if (cbs->alloc && cbs->free && cbs->lock && cbs->unlock) { memcpy(target, cbs, sizeof(_evthread_lock_fns)); return event_global_setup_locks_(1); } else { return -1; } } int evthread_set_condition_callbacks(const struct evthread_condition_callbacks *cbs) { struct evthread_condition_callbacks *target = _evthread_lock_debugging_enabled ? &_original_cond_fns : &_evthread_cond_fns; if (!cbs) { if (target->alloc_condition) event_warnx("Trying to disable condition functions " "after they have been set up will probaby not " "work."); memset(target, 0, sizeof(_evthread_cond_fns)); return 0; } if (target->alloc_condition) { /* Uh oh; we already had condition callbacks set up.*/ if (target->condition_api_version == cbs->condition_api_version && target->alloc_condition == cbs->alloc_condition && target->free_condition == cbs->free_condition && target->signal_condition == cbs->signal_condition && target->wait_condition == cbs->wait_condition) { /* no change -- allow this. */ return 0; } event_warnx("Can't change condition callbacks once they " "have been initialized."); return -1; } if (cbs->alloc_condition && cbs->free_condition && cbs->signal_condition && cbs->wait_condition) { memcpy(target, cbs, sizeof(_evthread_cond_fns)); } if (_evthread_lock_debugging_enabled) { _evthread_cond_fns.alloc_condition = cbs->alloc_condition; _evthread_cond_fns.free_condition = cbs->free_condition; _evthread_cond_fns.signal_condition = cbs->signal_condition; } return 0; } struct debug_lock { unsigned locktype; unsigned long held_by; /* XXXX if we ever use read-write locks, we will need a separate * lock to protect count. */ int count; void *lock; }; static void * debug_lock_alloc(unsigned locktype) { struct debug_lock *result = mm_malloc(sizeof(struct debug_lock)); if (!result) return NULL; if (_original_lock_fns.alloc) { if (!(result->lock = _original_lock_fns.alloc( locktype|EVTHREAD_LOCKTYPE_RECURSIVE))) { mm_free(result); return NULL; } } else { result->lock = NULL; } result->locktype = locktype; result->count = 0; result->held_by = 0; return result; } static void debug_lock_free(void *lock_, unsigned locktype) { struct debug_lock *lock = lock_; EVUTIL_ASSERT(lock->count == 0); EVUTIL_ASSERT(locktype == lock->locktype); if (_original_lock_fns.free) { _original_lock_fns.free(lock->lock, lock->locktype|EVTHREAD_LOCKTYPE_RECURSIVE); } lock->lock = NULL; lock->count = -100; mm_free(lock); } static void evthread_debug_lock_mark_locked(unsigned mode, struct debug_lock *lock) { ++lock->count; if (!(lock->locktype & EVTHREAD_LOCKTYPE_RECURSIVE)) EVUTIL_ASSERT(lock->count == 1); if (_evthread_id_fn) { unsigned long me; me = _evthread_id_fn(); if (lock->count > 1) EVUTIL_ASSERT(lock->held_by == me); lock->held_by = me; } } static int debug_lock_lock(unsigned mode, void *lock_) { struct debug_lock *lock = lock_; int res = 0; if (lock->locktype & EVTHREAD_LOCKTYPE_READWRITE) EVUTIL_ASSERT(mode & (EVTHREAD_READ|EVTHREAD_WRITE)); else EVUTIL_ASSERT((mode & (EVTHREAD_READ|EVTHREAD_WRITE)) == 0); if (_original_lock_fns.lock) res = _original_lock_fns.lock(mode, lock->lock); if (!res) { evthread_debug_lock_mark_locked(mode, lock); } return res; } static void evthread_debug_lock_mark_unlocked(unsigned mode, struct debug_lock *lock) { if (lock->locktype & EVTHREAD_LOCKTYPE_READWRITE) EVUTIL_ASSERT(mode & (EVTHREAD_READ|EVTHREAD_WRITE)); else EVUTIL_ASSERT((mode & (EVTHREAD_READ|EVTHREAD_WRITE)) == 0); if (_evthread_id_fn) { EVUTIL_ASSERT(lock->held_by == _evthread_id_fn()); if (lock->count == 1) lock->held_by = 0; } --lock->count; EVUTIL_ASSERT(lock->count >= 0); } static int debug_lock_unlock(unsigned mode, void *lock_) { struct debug_lock *lock = lock_; int res = 0; evthread_debug_lock_mark_unlocked(mode, lock); if (_original_lock_fns.unlock) res = _original_lock_fns.unlock(mode, lock->lock); return res; } static int debug_cond_wait(void *_cond, void *_lock, const struct timeval *tv) { int r; struct debug_lock *lock = _lock; EVUTIL_ASSERT(lock); EVLOCK_ASSERT_LOCKED(_lock); evthread_debug_lock_mark_unlocked(0, lock); r = _original_cond_fns.wait_condition(_cond, lock->lock, tv); evthread_debug_lock_mark_locked(0, lock); return r; } void evthread_enable_lock_debuging(void) { struct evthread_lock_callbacks cbs = { EVTHREAD_LOCK_API_VERSION, EVTHREAD_LOCKTYPE_RECURSIVE, debug_lock_alloc, debug_lock_free, debug_lock_lock, debug_lock_unlock }; if (_evthread_lock_debugging_enabled) return; memcpy(&_original_lock_fns, &_evthread_lock_fns, sizeof(struct evthread_lock_callbacks)); memcpy(&_evthread_lock_fns, &cbs, sizeof(struct evthread_lock_callbacks)); memcpy(&_original_cond_fns, &_evthread_cond_fns, sizeof(struct evthread_condition_callbacks)); _evthread_cond_fns.wait_condition = debug_cond_wait; _evthread_lock_debugging_enabled = 1; /* XXX return value should get checked. */ event_global_setup_locks_(0); } int _evthread_is_debug_lock_held(void *lock_) { struct debug_lock *lock = lock_; if (! lock->count) return 0; if (_evthread_id_fn) { unsigned long me = _evthread_id_fn(); if (lock->held_by != me) return 0; } return 1; } void * _evthread_debug_get_real_lock(void *lock_) { struct debug_lock *lock = lock_; return lock->lock; } void * evthread_setup_global_lock_(void *lock_, unsigned locktype, int enable_locks) { /* there are four cases here: 1) we're turning on debugging; locking is not on. 2) we're turning on debugging; locking is on. 3) we're turning on locking; debugging is not on. 4) we're turning on locking; debugging is on. */ if (!enable_locks && _original_lock_fns.alloc == NULL) { /* Case 1: allocate a debug lock. */ EVUTIL_ASSERT(lock_ == NULL); return debug_lock_alloc(locktype); } else if (!enable_locks && _original_lock_fns.alloc != NULL) { /* Case 2: wrap the lock in a debug lock. */ struct debug_lock *lock; EVUTIL_ASSERT(lock_ != NULL); if (!(locktype & EVTHREAD_LOCKTYPE_RECURSIVE)) { /* We can't wrap it: We need a recursive lock */ _original_lock_fns.free(lock_, locktype); return debug_lock_alloc(locktype); } lock = mm_malloc(sizeof(struct debug_lock)); if (!lock) { _original_lock_fns.free(lock_, locktype); return NULL; } lock->lock = lock_; lock->locktype = locktype; lock->count = 0; lock->held_by = 0; return lock; } else if (enable_locks && ! _evthread_lock_debugging_enabled) { /* Case 3: allocate a regular lock */ EVUTIL_ASSERT(lock_ == NULL); return _evthread_lock_fns.alloc(locktype); } else { /* Case 4: Fill in a debug lock with a real lock */ struct debug_lock *lock = lock_; EVUTIL_ASSERT(enable_locks && _evthread_lock_debugging_enabled); EVUTIL_ASSERT(lock->locktype == locktype); EVUTIL_ASSERT(lock->lock == NULL); lock->lock = _original_lock_fns.alloc( locktype|EVTHREAD_LOCKTYPE_RECURSIVE); if (!lock->lock) { lock->count = -200; mm_free(lock); return NULL; } return lock; } } #ifndef EVTHREAD_EXPOSE_STRUCTS unsigned long _evthreadimpl_get_id() { return _evthread_id_fn ? _evthread_id_fn() : 1; } void * _evthreadimpl_lock_alloc(unsigned locktype) { return _evthread_lock_fns.alloc ? _evthread_lock_fns.alloc(locktype) : NULL; } void _evthreadimpl_lock_free(void *lock, unsigned locktype) { if (_evthread_lock_fns.free) _evthread_lock_fns.free(lock, locktype); } int _evthreadimpl_lock_lock(unsigned mode, void *lock) { if (_evthread_lock_fns.lock) return _evthread_lock_fns.lock(mode, lock); else return 0; } int _evthreadimpl_lock_unlock(unsigned mode, void *lock) { if (_evthread_lock_fns.unlock) return _evthread_lock_fns.unlock(mode, lock); else return 0; } void * _evthreadimpl_cond_alloc(unsigned condtype) { return _evthread_cond_fns.alloc_condition ? _evthread_cond_fns.alloc_condition(condtype) : NULL; } void _evthreadimpl_cond_free(void *cond) { if (_evthread_cond_fns.free_condition) _evthread_cond_fns.free_condition(cond); } int _evthreadimpl_cond_signal(void *cond, int broadcast) { if (_evthread_cond_fns.signal_condition) return _evthread_cond_fns.signal_condition(cond, broadcast); else return 0; } int _evthreadimpl_cond_wait(void *cond, void *lock, const struct timeval *tv) { if (_evthread_cond_fns.wait_condition) return _evthread_cond_fns.wait_condition(cond, lock, tv); else return 0; } int _evthreadimpl_is_lock_debugging_enabled(void) { return _evthread_lock_debugging_enabled; } int _evthreadimpl_locking_enabled(void) { return _evthread_lock_fns.lock != NULL; } #endif #endif dnscrypt-proxy-1.9.4/src/libevent-modified/evthread_pthread.c000644 000765 000024 00000011501 13037731714 024004 0ustar00jstaff000000 000000 /* * Copyright 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" /* With glibc we need to define this to get PTHREAD_MUTEX_RECURSIVE. */ #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #include struct event_base; #include "event2/thread.h" #include #include #include "mm-internal.h" #include "evthread-internal.h" static pthread_mutexattr_t attr_recursive; static void * evthread_posix_lock_alloc(unsigned locktype) { pthread_mutexattr_t *attr = NULL; pthread_mutex_t *lock = mm_malloc(sizeof(pthread_mutex_t)); if (!lock) return NULL; if (locktype & EVTHREAD_LOCKTYPE_RECURSIVE) attr = &attr_recursive; if (pthread_mutex_init(lock, attr)) { mm_free(lock); return NULL; } return lock; } static void evthread_posix_lock_free(void *_lock, unsigned locktype) { pthread_mutex_t *lock = _lock; pthread_mutex_destroy(lock); mm_free(lock); } static int evthread_posix_lock(unsigned mode, void *_lock) { pthread_mutex_t *lock = _lock; if (mode & EVTHREAD_TRY) return pthread_mutex_trylock(lock); else return pthread_mutex_lock(lock); } static int evthread_posix_unlock(unsigned mode, void *_lock) { pthread_mutex_t *lock = _lock; return pthread_mutex_unlock(lock); } static unsigned long evthread_posix_get_id(void) { union { pthread_t thr; #if _EVENT_SIZEOF_PTHREAD_T > _EVENT_SIZEOF_LONG ev_uint64_t id; #else unsigned long id; #endif } r; #if _EVENT_SIZEOF_PTHREAD_T < _EVENT_SIZEOF_LONG memset(&r, 0, sizeof(r)); #endif r.thr = pthread_self(); return (unsigned long)r.id; } static void * evthread_posix_cond_alloc(unsigned condflags) { pthread_cond_t *cond = mm_malloc(sizeof(pthread_cond_t)); if (!cond) return NULL; if (pthread_cond_init(cond, NULL)) { mm_free(cond); return NULL; } return cond; } static void evthread_posix_cond_free(void *_cond) { pthread_cond_t *cond = _cond; pthread_cond_destroy(cond); mm_free(cond); } static int evthread_posix_cond_signal(void *_cond, int broadcast) { pthread_cond_t *cond = _cond; int r; if (broadcast) r = pthread_cond_broadcast(cond); else r = pthread_cond_signal(cond); return r ? -1 : 0; } static int evthread_posix_cond_wait(void *_cond, void *_lock, const struct timeval *tv) { int r; pthread_cond_t *cond = _cond; pthread_mutex_t *lock = _lock; if (tv) { struct timeval now, abstime; struct timespec ts; evutil_gettimeofday(&now, NULL); evutil_timeradd(&now, tv, &abstime); ts.tv_sec = abstime.tv_sec; ts.tv_nsec = abstime.tv_usec*1000; r = pthread_cond_timedwait(cond, lock, &ts); if (r == ETIMEDOUT) return 1; else if (r) return -1; else return 0; } else { r = pthread_cond_wait(cond, lock); return r ? -1 : 0; } } int evthread_use_pthreads(void) { struct evthread_lock_callbacks cbs = { EVTHREAD_LOCK_API_VERSION, EVTHREAD_LOCKTYPE_RECURSIVE, evthread_posix_lock_alloc, evthread_posix_lock_free, evthread_posix_lock, evthread_posix_unlock }; struct evthread_condition_callbacks cond_cbs = { EVTHREAD_CONDITION_API_VERSION, evthread_posix_cond_alloc, evthread_posix_cond_free, evthread_posix_cond_signal, evthread_posix_cond_wait }; /* Set ourselves up to get recursive locks. */ if (pthread_mutexattr_init(&attr_recursive)) return -1; if (pthread_mutexattr_settype(&attr_recursive, PTHREAD_MUTEX_RECURSIVE)) return -1; evthread_set_lock_callbacks(&cbs); evthread_set_condition_callbacks(&cond_cbs); evthread_set_id_callback(evthread_posix_get_id); return 0; } dnscrypt-proxy-1.9.4/src/libevent-modified/evthread_win32.c000644 000765 000024 00000020606 13037731714 023325 0ustar00jstaff000000 000000 /* * Copyright 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifndef _EVENT_DISABLE_THREAD_SUPPORT #ifdef WIN32 #ifndef _WIN32_WINNT /* Minimum required for InitializeCriticalSectionAndSpinCount */ #define _WIN32_WINNT 0x0403 #endif #include #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #include #endif struct event_base; #include "event2/thread.h" #include "mm-internal.h" #include "evthread-internal.h" #define SPIN_COUNT 2000 static void * evthread_win32_lock_create(unsigned locktype) { CRITICAL_SECTION *lock = mm_malloc(sizeof(CRITICAL_SECTION)); if (!lock) return NULL; if (InitializeCriticalSectionAndSpinCount(lock, SPIN_COUNT) == 0) { mm_free(lock); return NULL; } return lock; } static void evthread_win32_lock_free(void *_lock, unsigned locktype) { CRITICAL_SECTION *lock = _lock; DeleteCriticalSection(lock); mm_free(lock); } static int evthread_win32_lock(unsigned mode, void *_lock) { CRITICAL_SECTION *lock = _lock; if ((mode & EVTHREAD_TRY)) { return ! TryEnterCriticalSection(lock); } else { EnterCriticalSection(lock); return 0; } } static int evthread_win32_unlock(unsigned mode, void *_lock) { CRITICAL_SECTION *lock = _lock; LeaveCriticalSection(lock); return 0; } static unsigned long evthread_win32_get_id(void) { return (unsigned long) GetCurrentThreadId(); } #ifdef WIN32_HAVE_CONDITION_VARIABLES static void WINAPI (*InitializeConditionVariable_fn)(PCONDITION_VARIABLE) = NULL; static BOOL WINAPI (*SleepConditionVariableCS_fn)( PCONDITION_VARIABLE, PCRITICAL_SECTION, DWORD) = NULL; static void WINAPI (*WakeAllConditionVariable_fn)(PCONDITION_VARIABLE) = NULL; static void WINAPI (*WakeConditionVariable_fn)(PCONDITION_VARIABLE) = NULL; static int evthread_win32_condvar_init(void) { HANDLE lib; lib = GetModuleHandle(TEXT("kernel32.dll")); if (lib == NULL) return 0; #define LOAD(name) \ name##_fn = GetProcAddress(lib, #name) LOAD(InitializeConditionVariable); LOAD(SleepConditionVariableCS); LOAD(WakeAllConditionVariable); LOAD(WakeConditionVariable); return InitializeConditionVariable_fn && SleepConditionVariableCS_fn && WakeAllConditionVariable_fn && WakeConditionVariable_fn; } /* XXXX Even if we can build this, we don't necessarily want to: the functions * in question didn't exist before Vista, so we'd better LoadProc them. */ static void * evthread_win32_condvar_alloc(unsigned condflags) { CONDITION_VARIABLE *cond = mm_malloc(sizeof(CONDITION_VARIABLE)); if (!cond) return NULL; InitializeConditionVariable_fn(cond); return cond; } static void evthread_win32_condvar_free(void *_cond) { CONDITION_VARIABLE *cond = _cond; /* There doesn't _seem_ to be a cleaup fn here... */ mm_free(cond); } static int evthread_win32_condvar_signal(void *_cond, int broadcast) { CONDITION_VARIABLE *cond = _cond; if (broadcast) WakeAllConditionVariable_fn(cond); else WakeConditionVariable_fn(cond); return 0; } static int evthread_win32_condvar_wait(void *_cond, void *_lock, const struct timeval *tv) { CONDITION_VARIABLE *cond = _cond; CRITICAL_SECTION *lock = _lock; DWORD ms, err; BOOL result; if (tv) ms = evutil_tv_to_msec(tv); else ms = INFINITE; result = SleepConditionVariableCS_fn(cond, lock, ms); if (result) { if (GetLastError() == WAIT_TIMEOUT) return 1; else return -1; } else { return 0; } } #endif struct evthread_win32_cond { HANDLE event; CRITICAL_SECTION lock; int n_waiting; int n_to_wake; int generation; }; static void * evthread_win32_cond_alloc(unsigned flags) { struct evthread_win32_cond *cond; if (!(cond = mm_malloc(sizeof(struct evthread_win32_cond)))) return NULL; if (InitializeCriticalSectionAndSpinCount(&cond->lock, SPIN_COUNT)==0) { mm_free(cond); return NULL; } if ((cond->event = CreateEvent(NULL,TRUE,FALSE,NULL)) == NULL) { DeleteCriticalSection(&cond->lock); mm_free(cond); return NULL; } cond->n_waiting = cond->n_to_wake = cond->generation = 0; return cond; } static void evthread_win32_cond_free(void *_cond) { struct evthread_win32_cond *cond = _cond; DeleteCriticalSection(&cond->lock); CloseHandle(cond->event); mm_free(cond); } static int evthread_win32_cond_signal(void *_cond, int broadcast) { struct evthread_win32_cond *cond = _cond; EnterCriticalSection(&cond->lock); if (broadcast) cond->n_to_wake = cond->n_waiting; else ++cond->n_to_wake; cond->generation++; SetEvent(cond->event); LeaveCriticalSection(&cond->lock); return 0; } static int evthread_win32_cond_wait(void *_cond, void *_lock, const struct timeval *tv) { struct evthread_win32_cond *cond = _cond; CRITICAL_SECTION *lock = _lock; int generation_at_start; int waiting = 1; int result = -1; DWORD ms = INFINITE, ms_orig = INFINITE, startTime, endTime; if (tv) ms_orig = ms = evutil_tv_to_msec(tv); EnterCriticalSection(&cond->lock); ++cond->n_waiting; generation_at_start = cond->generation; LeaveCriticalSection(&cond->lock); LeaveCriticalSection(lock); startTime = GetTickCount(); do { DWORD res; res = WaitForSingleObject(cond->event, ms); EnterCriticalSection(&cond->lock); if (cond->n_to_wake && cond->generation != generation_at_start) { --cond->n_to_wake; --cond->n_waiting; result = 0; waiting = 0; goto out; } else if (res != WAIT_OBJECT_0) { result = (res==WAIT_TIMEOUT) ? 1 : -1; --cond->n_waiting; waiting = 0; goto out; } else if (ms != INFINITE) { endTime = GetTickCount(); if (startTime + ms_orig <= endTime) { result = 1; /* Timeout */ --cond->n_waiting; waiting = 0; goto out; } else { ms = startTime + ms_orig - endTime; } } /* If we make it here, we are still waiting. */ if (cond->n_to_wake == 0) { /* There is nobody else who should wake up; reset * the event. */ ResetEvent(cond->event); } out: LeaveCriticalSection(&cond->lock); } while (waiting); EnterCriticalSection(lock); EnterCriticalSection(&cond->lock); if (!cond->n_waiting) ResetEvent(cond->event); LeaveCriticalSection(&cond->lock); return result; } int evthread_use_windows_threads(void) { struct evthread_lock_callbacks cbs = { EVTHREAD_LOCK_API_VERSION, EVTHREAD_LOCKTYPE_RECURSIVE, evthread_win32_lock_create, evthread_win32_lock_free, evthread_win32_lock, evthread_win32_unlock }; struct evthread_condition_callbacks cond_cbs = { EVTHREAD_CONDITION_API_VERSION, evthread_win32_cond_alloc, evthread_win32_cond_free, evthread_win32_cond_signal, evthread_win32_cond_wait }; #ifdef WIN32_HAVE_CONDITION_VARIABLES struct evthread_condition_callbacks condvar_cbs = { EVTHREAD_CONDITION_API_VERSION, evthread_win32_condvar_alloc, evthread_win32_condvar_free, evthread_win32_condvar_signal, evthread_win32_condvar_wait }; #endif evthread_set_lock_callbacks(&cbs); evthread_set_id_callback(evthread_win32_get_id); #ifdef WIN32_HAVE_CONDITION_VARIABLES if (evthread_win32_condvar_init()) { evthread_set_condition_callbacks(&condvar_cbs); return 0; } #endif evthread_set_condition_callbacks(&cond_cbs); return 0; } #endif dnscrypt-proxy-1.9.4/src/libevent-modified/evutil.c000644 000765 000024 00000164377 13037731714 022027 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #ifdef WIN32 #include #include #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #include #include #endif #include #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #ifdef _EVENT_HAVE_SYS_IOCTL_H #include #endif #ifdef _EVENT_HAVE_UNISTD_H #include #endif #ifdef _EVENT_HAVE_FCNTL_H #include #endif #ifdef _EVENT_HAVE_STDLIB_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_NETINET_IN_H #include #endif #ifdef _EVENT_HAVE_NETINET_IN6_H #include #endif #ifdef _EVENT_HAVE_ARPA_INET_H #include #endif #ifndef _EVENT_HAVE_GETTIMEOFDAY #include #include #endif #include #include "event2/util.h" #include "util-internal.h" #include "log-internal.h" #include "mm-internal.h" #include "strlcpy-internal.h" #include "ipv6-internal.h" #ifdef WIN32 #define open _open #define read _read #define close _close #define fstat _fstati64 #define stat _stati64 #define mode_t int #endif int evutil_open_closeonexec(const char *pathname, int flags, unsigned mode) { int fd; #ifdef O_CLOEXEC flags |= O_CLOEXEC; #endif if (flags & O_CREAT) fd = open(pathname, flags, (mode_t)mode); else fd = open(pathname, flags); if (fd < 0) return -1; #if !defined(O_CLOEXEC) && defined(FD_CLOEXEC) if (fcntl(fd, F_SETFD, FD_CLOEXEC) < 0) return -1; #endif return fd; } /** Read the contents of 'filename' into a newly allocated NUL-terminated string. Set *content_out to hold this string, and *len_out to hold its length (not including the appended NUL). If 'is_binary', open the file in binary mode. Returns 0 on success, -1 if the open fails, and -2 for all other failures. Used internally only; may go away in a future version. */ int evutil_read_file(const char *filename, char **content_out, size_t *len_out, int is_binary) { int fd, r; struct stat st; char *mem; size_t read_so_far=0; int mode = O_RDONLY; EVUTIL_ASSERT(content_out); EVUTIL_ASSERT(len_out); *content_out = NULL; *len_out = 0; #ifdef O_BINARY if (is_binary) mode |= O_BINARY; #endif fd = evutil_open_closeonexec(filename, mode, 0); if (fd < 0) return -1; if (fstat(fd, &st) || st.st_size < 0 || st.st_size > EV_SSIZE_MAX-1 ) { close(fd); return -2; } mem = mm_malloc((size_t)st.st_size + 1); if (!mem) { close(fd); return -2; } read_so_far = 0; #ifdef WIN32 #define N_TO_READ(x) ((x) > INT_MAX) ? INT_MAX : ((int)(x)) #else #define N_TO_READ(x) (x) #endif while ((r = read(fd, mem+read_so_far, N_TO_READ(st.st_size - read_so_far))) > 0) { read_so_far += r; if (read_so_far >= (size_t)st.st_size) break; EVUTIL_ASSERT(read_so_far < (size_t)st.st_size); } close(fd); if (r < 0) { mm_free(mem); return -2; } mem[read_so_far] = 0; *len_out = read_so_far; *content_out = mem; return 0; } int evutil_socketpair(int family, int type, int protocol, evutil_socket_t fd[2]) { #ifndef WIN32 return socketpair(family, type, protocol, fd); #else return evutil_ersatz_socketpair(family, type, protocol, fd); #endif } int evutil_ersatz_socketpair(int family, int type, int protocol, evutil_socket_t fd[2]) { /* This code is originally from Tor. Used with permission. */ /* This socketpair does not work when localhost is down. So * it's really not the same thing at all. But it's close enough * for now, and really, when localhost is down sometimes, we * have other problems too. */ #ifdef WIN32 #define ERR(e) WSA##e #else #define ERR(e) e #endif evutil_socket_t listener = -1; evutil_socket_t connector = -1; evutil_socket_t acceptor = -1; struct sockaddr_in listen_addr; struct sockaddr_in connect_addr; ev_socklen_t size; int saved_errno = -1; if (protocol || (family != AF_INET #ifdef AF_UNIX && family != AF_UNIX #endif )) { EVUTIL_SET_SOCKET_ERROR(ERR(EAFNOSUPPORT)); return -1; } if (!fd) { EVUTIL_SET_SOCKET_ERROR(ERR(EINVAL)); return -1; } listener = socket(AF_INET, type, 0); if (listener < 0) return -1; memset(&listen_addr, 0, sizeof(listen_addr)); listen_addr.sin_family = AF_INET; listen_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); listen_addr.sin_port = 0; /* kernel chooses port. */ if (bind(listener, (struct sockaddr *) &listen_addr, sizeof (listen_addr)) == -1) goto tidy_up_and_fail; if (listen(listener, 1) == -1) goto tidy_up_and_fail; connector = socket(AF_INET, type, 0); if (connector < 0) goto tidy_up_and_fail; /* We want to find out the port number to connect to. */ size = sizeof(connect_addr); if (getsockname(listener, (struct sockaddr *) &connect_addr, &size) == -1) goto tidy_up_and_fail; if (size != sizeof (connect_addr)) goto abort_tidy_up_and_fail; if (connect(connector, (struct sockaddr *) &connect_addr, sizeof(connect_addr)) == -1) goto tidy_up_and_fail; size = sizeof(listen_addr); acceptor = accept(listener, (struct sockaddr *) &listen_addr, &size); if (acceptor < 0) goto tidy_up_and_fail; if (size != sizeof(listen_addr)) goto abort_tidy_up_and_fail; /* Now check we are talking to ourself by matching port and host on the two sockets. */ if (getsockname(connector, (struct sockaddr *) &connect_addr, &size) == -1) goto tidy_up_and_fail; if (size != sizeof (connect_addr) || listen_addr.sin_family != connect_addr.sin_family || listen_addr.sin_addr.s_addr != connect_addr.sin_addr.s_addr || listen_addr.sin_port != connect_addr.sin_port) goto abort_tidy_up_and_fail; evutil_closesocket(listener); fd[0] = connector; fd[1] = acceptor; return 0; abort_tidy_up_and_fail: saved_errno = ERR(ECONNABORTED); tidy_up_and_fail: if (saved_errno < 0) saved_errno = EVUTIL_SOCKET_ERROR(); if (listener != -1) evutil_closesocket(listener); if (connector != -1) evutil_closesocket(connector); if (acceptor != -1) evutil_closesocket(acceptor); EVUTIL_SET_SOCKET_ERROR(saved_errno); return -1; #undef ERR } int evutil_make_socket_nonblocking(evutil_socket_t fd) { #ifdef WIN32 { u_long nonblocking = 1; if (ioctlsocket(fd, FIONBIO, &nonblocking) == SOCKET_ERROR) { event_sock_warn(fd, "fcntl(%d, F_GETFL)", (int)fd); return -1; } } #elif defined(FIONBIO) { int nonblocking = 1; if (ioctl(fd, FIONBIO, &nonblocking) != 0) { event_warn("ioctl(%d, FIONBIO, 1)", fd); return -1; } } #else { int flags; if ((flags = fcntl(fd, F_GETFL, NULL)) < 0) { event_warn("fcntl(%d, F_GETFL)", fd); return -1; } if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) { event_warn("fcntl(%d, F_SETFL)", fd); return -1; } } #endif return 0; } int evutil_make_listen_socket_reuseable(evutil_socket_t sock) { #ifndef WIN32 int one = 1; /* REUSEADDR on Unix means, "don't hang on to this address after the * listener is closed." On Windows, though, it means "don't keep other * processes from binding to this address while we're using it. */ return setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*) &one, (ev_socklen_t)sizeof(one)); #else return 0; #endif } int evutil_make_listen_socket_reuseable_port(evutil_socket_t sock) { #if defined __linux__ && defined(SO_REUSEPORT) int one = 1; /* REUSEPORT on Linux 3.9+ means, "Multiple servers (processes or * threads) can bind to the same port if they each set the option. */ return setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, (void*) &one, (ev_socklen_t)sizeof(one)); #else return 0; #endif } int evutil_make_socket_closeonexec(evutil_socket_t fd) { #if !defined(WIN32) # ifdef FIOCLEX if (ioctl(fd, FIOCLEX, NULL) != 0) { event_warn("ioctl(%d, FIOCLEX, NULL)", fd); return -1; } # elif defined(_EVENT_HAVE_SETFD) int flags; if ((flags = fcntl(fd, F_GETFD, NULL)) < 0) { event_warn("fcntl(%d, F_GETFD)", fd); return -1; } if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) { event_warn("fcntl(%d, F_SETFD)", fd); return -1; } # endif #endif return 0; } int evutil_closesocket(evutil_socket_t sock) { #ifndef WIN32 return close(sock); #else return closesocket(sock); #endif } ev_int64_t evutil_strtoll(const char *s, char **endptr, int base) { #ifdef _EVENT_HAVE_STRTOLL return (ev_int64_t)strtoll(s, endptr, base); #elif _EVENT_SIZEOF_LONG == 8 return (ev_int64_t)strtol(s, endptr, base); #elif defined(WIN32) && defined(_MSC_VER) && _MSC_VER < 1300 /* XXXX on old versions of MS APIs, we only support base * 10. */ ev_int64_t r; if (base != 10) return 0; r = (ev_int64_t) _atoi64(s); while (isspace(*s)) ++s; if (*s == '-') ++s; while (isdigit(*s)) ++s; if (endptr) *endptr = (char*) s; return r; #elif defined(WIN32) return (ev_int64_t) _strtoi64(s, endptr, base); #elif defined(_EVENT_SIZEOF_LONG_LONG) && _EVENT_SIZEOF_LONG_LONG == 8 long long r; int n; if (base != 10 && base != 16) return 0; if (base == 10) { n = sscanf(s, "%lld", &r); } else { unsigned long long ru=0; n = sscanf(s, "%llx", &ru); if (ru > EV_INT64_MAX) return 0; r = (long long) ru; } if (n != 1) return 0; while (EVUTIL_ISSPACE(*s)) ++s; if (*s == '-') ++s; if (base == 10) { while (EVUTIL_ISDIGIT(*s)) ++s; } else { while (EVUTIL_ISXDIGIT(*s)) ++s; } if (endptr) *endptr = (char*) s; return r; #else #error "I don't know how to parse 64-bit integers." #endif } #ifndef _EVENT_HAVE_GETTIMEOFDAY /* No gettimeofday; this muse be windows. */ int evutil_gettimeofday(struct timeval *tv, struct timezone *tz) { struct _timeb tb; if (tv == NULL) return -1; /* XXXX * _ftime is not the greatest interface here; GetSystemTimeAsFileTime * would give us better resolution, whereas something cobbled together * with GetTickCount could maybe give us monotonic behavior. * * Either way, I think this value might be skewed to ignore the * timezone, and just return local time. That's not so good. */ _ftime(&tb); tv->tv_sec = (long) tb.time; tv->tv_usec = ((int) tb.millitm) * 1000; return 0; } #endif #ifdef WIN32 int evutil_socket_geterror(evutil_socket_t sock) { int optval, optvallen=sizeof(optval); int err = WSAGetLastError(); if (err == WSAEWOULDBLOCK && sock >= 0) { if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (void*)&optval, &optvallen)) return err; if (optval) return optval; } return err; } #endif /* XXX we should use an enum here. */ /* 2 for connection refused, 1 for connected, 0 for not yet, -1 for error. */ int evutil_socket_connect(evutil_socket_t *fd_ptr, struct sockaddr *sa, int socklen) { int made_fd = 0; if (*fd_ptr < 0) { if ((*fd_ptr = socket(sa->sa_family, SOCK_STREAM, 0)) < 0) goto err; made_fd = 1; if (evutil_make_socket_nonblocking(*fd_ptr) < 0) { goto err; } } if (connect(*fd_ptr, sa, socklen) < 0) { int e = evutil_socket_geterror(*fd_ptr); if (EVUTIL_ERR_CONNECT_RETRIABLE(e)) return 0; if (EVUTIL_ERR_CONNECT_REFUSED(e)) return 2; goto err; } else { return 1; } err: if (made_fd) { evutil_closesocket(*fd_ptr); *fd_ptr = -1; } return -1; } /* Check whether a socket on which we called connect() is done connecting. Return 1 for connected, 0 for not yet, -1 for error. In the error case, set the current socket errno to the error that happened during the connect operation. */ int evutil_socket_finished_connecting(evutil_socket_t fd) { int e; ev_socklen_t elen = sizeof(e); if (getsockopt(fd, SOL_SOCKET, SO_ERROR, (void*)&e, &elen) < 0) return -1; if (e) { if (EVUTIL_ERR_CONNECT_RETRIABLE(e)) return 0; EVUTIL_SET_SOCKET_ERROR(e); return -1; } return 1; } #if (EVUTIL_AI_PASSIVE|EVUTIL_AI_CANONNAME|EVUTIL_AI_NUMERICHOST| \ EVUTIL_AI_NUMERICSERV|EVUTIL_AI_V4MAPPED|EVUTIL_AI_ALL| \ EVUTIL_AI_ADDRCONFIG) != \ (EVUTIL_AI_PASSIVE^EVUTIL_AI_CANONNAME^EVUTIL_AI_NUMERICHOST^ \ EVUTIL_AI_NUMERICSERV^EVUTIL_AI_V4MAPPED^EVUTIL_AI_ALL^ \ EVUTIL_AI_ADDRCONFIG) #error "Some of our EVUTIL_AI_* flags seem to overlap with system AI_* flags" #endif /* We sometimes need to know whether we have an ipv4 address and whether we have an ipv6 address. If 'have_checked_interfaces', then we've already done the test. If 'had_ipv4_address', then it turns out we had an ipv4 address. If 'had_ipv6_address', then it turns out we had an ipv6 address. These are set by evutil_check_interfaces. */ static int have_checked_interfaces, had_ipv4_address, had_ipv6_address; /* Macro: True iff the IPv4 address 'addr', in host order, is in 127.0.0.0/8 */ #define EVUTIL_V4ADDR_IS_LOCALHOST(addr) (((addr)>>24) == 127) /* Macro: True iff the IPv4 address 'addr', in host order, is a class D * (multiclass) address. */ #define EVUTIL_V4ADDR_IS_CLASSD(addr) ((((addr)>>24) & 0xf0) == 0xe0) /* Test whether we have an ipv4 interface and an ipv6 interface. Return 0 if * the test seemed successful. */ static int evutil_check_interfaces(int force_recheck) { const char ZEROES[] = "\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00"; evutil_socket_t fd = -1; struct sockaddr_in sin, sin_out; struct sockaddr_in6 sin6, sin6_out; ev_socklen_t sin_out_len = sizeof(sin_out); ev_socklen_t sin6_out_len = sizeof(sin6_out); int r; char buf[128]; if (have_checked_interfaces && !force_recheck) return 0; /* To check whether we have an interface open for a given protocol, we * try to make a UDP 'connection' to a remote host on the internet. * We don't actually use it, so the address doesn't matter, but we * want to pick one that keep us from using a host- or link-local * interface. */ memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; sin.sin_port = htons(53); r = evutil_inet_pton(AF_INET, "18.244.0.188", &sin.sin_addr); EVUTIL_ASSERT(r); memset(&sin6, 0, sizeof(sin6)); sin6.sin6_family = AF_INET6; sin6.sin6_port = htons(53); r = evutil_inet_pton(AF_INET6, "2001:4860:b002::68", &sin6.sin6_addr); EVUTIL_ASSERT(r); memset(&sin_out, 0, sizeof(sin_out)); memset(&sin6_out, 0, sizeof(sin6_out)); /* XXX some errnos mean 'no address'; some mean 'not enough sockets'. */ if ((fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) >= 0 && connect(fd, (struct sockaddr*)&sin, sizeof(sin)) == 0 && getsockname(fd, (struct sockaddr*)&sin_out, &sin_out_len) == 0) { /* We might have an IPv4 interface. */ ev_uint32_t addr = ntohl(sin_out.sin_addr.s_addr); if (addr == 0 || EVUTIL_V4ADDR_IS_LOCALHOST(addr) || EVUTIL_V4ADDR_IS_CLASSD(addr)) { evutil_inet_ntop(AF_INET, &sin_out.sin_addr, buf, sizeof(buf)); /* This is a reserved, ipv4compat, ipv4map, loopback, * link-local or unspecified address. The host should * never have given it to us; it could never connect * to sin. */ event_warnx("Got a strange local ipv4 address %s",buf); } else { event_debug(("Detected an IPv4 interface")); had_ipv4_address = 1; } } if (fd >= 0) evutil_closesocket(fd); if ((fd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP)) >= 0 && connect(fd, (struct sockaddr*)&sin6, sizeof(sin6)) == 0 && getsockname(fd, (struct sockaddr*)&sin6_out, &sin6_out_len) == 0) { /* We might have an IPv6 interface. */ const unsigned char *addr = (unsigned char*)sin6_out.sin6_addr.s6_addr; if (!memcmp(addr, ZEROES, 8) || (addr[0] == 0xfe && (addr[1] & 0xc0) == 0x80)) { /* This is a reserved, ipv4compat, ipv4map, loopback, * link-local or unspecified address. The host should * never have given it to us; it could never connect * to sin6. */ evutil_inet_ntop(AF_INET6, &sin6_out.sin6_addr, buf, sizeof(buf)); event_warnx("Got a strange local ipv6 address %s",buf); } else { event_debug(("Detected an IPv4 interface")); had_ipv6_address = 1; } } if (fd >= 0) evutil_closesocket(fd); return 0; } /* Internal addrinfo flag. This one is set when we allocate the addrinfo from * inside libevent. Otherwise, the built-in getaddrinfo() function allocated * it, and we should trust what they said. **/ #define EVUTIL_AI_LIBEVENT_ALLOCATED 0x80000000 /* Helper: construct a new addrinfo containing the socket address in * 'sa', which must be a sockaddr_in or a sockaddr_in6. Take the * socktype and protocol info from hints. If they weren't set, then * allocate both a TCP and a UDP addrinfo. */ struct evutil_addrinfo * evutil_new_addrinfo(struct sockaddr *sa, ev_socklen_t socklen, const struct evutil_addrinfo *hints) { struct evutil_addrinfo *res; EVUTIL_ASSERT(hints); if (hints->ai_socktype == 0 && hints->ai_protocol == 0) { /* Indecisive user! Give them a UDP and a TCP. */ struct evutil_addrinfo *r1, *r2; struct evutil_addrinfo tmp; memcpy(&tmp, hints, sizeof(tmp)); tmp.ai_socktype = SOCK_STREAM; tmp.ai_protocol = IPPROTO_TCP; r1 = evutil_new_addrinfo(sa, socklen, &tmp); if (!r1) return NULL; tmp.ai_socktype = SOCK_DGRAM; tmp.ai_protocol = IPPROTO_UDP; r2 = evutil_new_addrinfo(sa, socklen, &tmp); if (!r2) { evutil_freeaddrinfo(r1); return NULL; } r1->ai_next = r2; return r1; } /* We're going to allocate extra space to hold the sockaddr. */ res = mm_calloc(1,sizeof(struct evutil_addrinfo)+socklen); if (!res) return NULL; res->ai_addr = (struct sockaddr*) (((char*)res) + sizeof(struct evutil_addrinfo)); memcpy(res->ai_addr, sa, socklen); res->ai_addrlen = socklen; res->ai_family = sa->sa_family; /* Same or not? XXX */ res->ai_flags = EVUTIL_AI_LIBEVENT_ALLOCATED; res->ai_socktype = hints->ai_socktype; res->ai_protocol = hints->ai_protocol; return res; } /* Append the addrinfo 'append' to the end of 'first', and return the start of * the list. Either element can be NULL, in which case we return the element * that is not NULL. */ struct evutil_addrinfo * evutil_addrinfo_append(struct evutil_addrinfo *first, struct evutil_addrinfo *append) { struct evutil_addrinfo *ai = first; if (!ai) return append; while (ai->ai_next) ai = ai->ai_next; ai->ai_next = append; return first; } static int parse_numeric_servname(const char *servname) { int n; char *endptr=NULL; n = (int) strtol(servname, &endptr, 10); if (n>=0 && n <= 65535 && servname[0] && endptr && !endptr[0]) return n; else return -1; } /** Parse a service name in 'servname', which can be a decimal port. * Return the port number, or -1 on error. */ static int evutil_parse_servname(const char *servname, const char *protocol, const struct evutil_addrinfo *hints) { int n = parse_numeric_servname(servname); if (n>=0) return n; #if defined(_EVENT_HAVE_GETSERVBYNAME) || defined(WIN32) if (!(hints->ai_flags & EVUTIL_AI_NUMERICSERV)) { struct servent *ent = getservbyname(servname, protocol); if (ent) { return ntohs(ent->s_port); } } #endif return -1; } /* Return a string corresponding to a protocol number that we can pass to * getservyname. */ static const char * evutil_unparse_protoname(int proto) { switch (proto) { case 0: return NULL; case IPPROTO_TCP: return "tcp"; case IPPROTO_UDP: return "udp"; #ifdef IPPROTO_SCTP case IPPROTO_SCTP: return "sctp"; #endif default: #ifdef _EVENT_HAVE_GETPROTOBYNUMBER { struct protoent *ent = getprotobynumber(proto); if (ent) return ent->p_name; } #endif return NULL; } } static void evutil_getaddrinfo_infer_protocols(struct evutil_addrinfo *hints) { /* If we can guess the protocol from the socktype, do so. */ if (!hints->ai_protocol && hints->ai_socktype) { if (hints->ai_socktype == SOCK_DGRAM) hints->ai_protocol = IPPROTO_UDP; else if (hints->ai_socktype == SOCK_STREAM) hints->ai_protocol = IPPROTO_TCP; } /* Set the socktype if it isn't set. */ if (!hints->ai_socktype && hints->ai_protocol) { if (hints->ai_protocol == IPPROTO_UDP) hints->ai_socktype = SOCK_DGRAM; else if (hints->ai_protocol == IPPROTO_TCP) hints->ai_socktype = SOCK_STREAM; #ifdef IPPROTO_SCTP else if (hints->ai_protocol == IPPROTO_SCTP) hints->ai_socktype = SOCK_STREAM; #endif } } #if AF_UNSPEC != PF_UNSPEC #error "I cannot build on a system where AF_UNSPEC != PF_UNSPEC" #endif /** Implements the part of looking up hosts by name that's common to both * the blocking and nonblocking resolver: * - Adjust 'hints' to have a reasonable socktype and protocol. * - Look up the port based on 'servname', and store it in *portnum, * - Handle the nodename==NULL case * - Handle some invalid arguments cases. * - Handle the cases where nodename is an IPv4 or IPv6 address. * * If we need the resolver to look up the hostname, we return * EVUTIL_EAI_NEED_RESOLVE. Otherwise, we can completely implement * getaddrinfo: we return 0 or an appropriate EVUTIL_EAI_* error, and * set *res as getaddrinfo would. */ int evutil_getaddrinfo_common(const char *nodename, const char *servname, struct evutil_addrinfo *hints, struct evutil_addrinfo **res, int *portnum) { int port = 0; const char *pname; if (nodename == NULL && servname == NULL) return EVUTIL_EAI_NONAME; /* We only understand 3 families */ if (hints->ai_family != PF_UNSPEC && hints->ai_family != PF_INET && hints->ai_family != PF_INET6) return EVUTIL_EAI_FAMILY; evutil_getaddrinfo_infer_protocols(hints); /* Look up the port number and protocol, if possible. */ pname = evutil_unparse_protoname(hints->ai_protocol); if (servname) { /* XXXX We could look at the protocol we got back from * getservbyname, but it doesn't seem too useful. */ port = evutil_parse_servname(servname, pname, hints); if (port < 0) { return EVUTIL_EAI_NONAME; } } /* If we have no node name, then we're supposed to bind to 'any' and * connect to localhost. */ if (nodename == NULL) { struct evutil_addrinfo *res4=NULL, *res6=NULL; if (hints->ai_family != PF_INET) { /* INET6 or UNSPEC. */ struct sockaddr_in6 sin6; memset(&sin6, 0, sizeof(sin6)); sin6.sin6_family = AF_INET6; sin6.sin6_port = htons(port); if (hints->ai_flags & EVUTIL_AI_PASSIVE) { /* Bind to :: */ } else { /* connect to ::1 */ sin6.sin6_addr.s6_addr[15] = 1; } res6 = evutil_new_addrinfo((struct sockaddr*)&sin6, sizeof(sin6), hints); if (!res6) return EVUTIL_EAI_MEMORY; } if (hints->ai_family != PF_INET6) { /* INET or UNSPEC */ struct sockaddr_in sin; memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; sin.sin_port = htons(port); if (hints->ai_flags & EVUTIL_AI_PASSIVE) { /* Bind to 0.0.0.0 */ } else { /* connect to 127.0.0.1 */ sin.sin_addr.s_addr = htonl(0x7f000001); } res4 = evutil_new_addrinfo((struct sockaddr*)&sin, sizeof(sin), hints); if (!res4) { if (res6) evutil_freeaddrinfo(res6); return EVUTIL_EAI_MEMORY; } } *res = evutil_addrinfo_append(res4, res6); return 0; } /* If we can, we should try to parse the hostname without resolving * it. */ /* Try ipv6. */ if (hints->ai_family == PF_INET6 || hints->ai_family == PF_UNSPEC) { struct sockaddr_in6 sin6; memset(&sin6, 0, sizeof(sin6)); if (1==evutil_inet_pton(AF_INET6, nodename, &sin6.sin6_addr)) { /* Got an ipv6 address. */ sin6.sin6_family = AF_INET6; sin6.sin6_port = htons(port); *res = evutil_new_addrinfo((struct sockaddr*)&sin6, sizeof(sin6), hints); if (!*res) return EVUTIL_EAI_MEMORY; return 0; } } /* Try ipv4. */ if (hints->ai_family == PF_INET || hints->ai_family == PF_UNSPEC) { struct sockaddr_in sin; memset(&sin, 0, sizeof(sin)); if (1==evutil_inet_pton(AF_INET, nodename, &sin.sin_addr)) { /* Got an ipv6 address. */ sin.sin_family = AF_INET; sin.sin_port = htons(port); *res = evutil_new_addrinfo((struct sockaddr*)&sin, sizeof(sin), hints); if (!*res) return EVUTIL_EAI_MEMORY; return 0; } } /* If we have reached this point, we definitely need to do a DNS * lookup. */ if ((hints->ai_flags & EVUTIL_AI_NUMERICHOST)) { /* If we're not allowed to do one, then say so. */ return EVUTIL_EAI_NONAME; } *portnum = port; return EVUTIL_EAI_NEED_RESOLVE; } #ifdef _EVENT_HAVE_GETADDRINFO #define USE_NATIVE_GETADDRINFO #endif #ifdef USE_NATIVE_GETADDRINFO /* A mask of all the flags that we declare, so we can clear them before calling * the native getaddrinfo */ static const unsigned int ALL_NONNATIVE_AI_FLAGS = #ifndef AI_PASSIVE EVUTIL_AI_PASSIVE | #endif #ifndef AI_CANONNAME EVUTIL_AI_CANONNAME | #endif #ifndef AI_NUMERICHOST EVUTIL_AI_NUMERICHOST | #endif #ifndef AI_NUMERICSERV EVUTIL_AI_NUMERICSERV | #endif #ifndef AI_ADDRCONFIG EVUTIL_AI_ADDRCONFIG | #endif #ifndef AI_ALL EVUTIL_AI_ALL | #endif #ifndef AI_V4MAPPED EVUTIL_AI_V4MAPPED | #endif EVUTIL_AI_LIBEVENT_ALLOCATED; static const unsigned int ALL_NATIVE_AI_FLAGS = #ifdef AI_PASSIVE AI_PASSIVE | #endif #ifdef AI_CANONNAME AI_CANONNAME | #endif #ifdef AI_NUMERICHOST AI_NUMERICHOST | #endif #ifdef AI_NUMERICSERV AI_NUMERICSERV | #endif #ifdef AI_ADDRCONFIG AI_ADDRCONFIG | #endif #ifdef AI_ALL AI_ALL | #endif #ifdef AI_V4MAPPED AI_V4MAPPED | #endif 0; #endif #ifndef USE_NATIVE_GETADDRINFO /* Helper for systems with no getaddrinfo(): make one or more addrinfos out of * a struct hostent. */ static struct evutil_addrinfo * addrinfo_from_hostent(const struct hostent *ent, int port, const struct evutil_addrinfo *hints) { int i; struct sockaddr_in sin; struct sockaddr_in6 sin6; struct sockaddr *sa; int socklen; struct evutil_addrinfo *res=NULL, *ai; void *addrp; if (ent->h_addrtype == PF_INET) { memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; sin.sin_port = htons(port); sa = (struct sockaddr *)&sin; socklen = sizeof(struct sockaddr_in); addrp = &sin.sin_addr; if (ent->h_length != sizeof(sin.sin_addr)) { event_warnx("Weird h_length from gethostbyname"); return NULL; } } else if (ent->h_addrtype == PF_INET6) { memset(&sin6, 0, sizeof(sin6)); sin6.sin6_family = AF_INET6; sin6.sin6_port = htons(port); sa = (struct sockaddr *)&sin6; socklen = sizeof(struct sockaddr_in); addrp = &sin6.sin6_addr; if (ent->h_length != sizeof(sin6.sin6_addr)) { event_warnx("Weird h_length from gethostbyname"); return NULL; } } else return NULL; for (i = 0; ent->h_addr_list[i]; ++i) { memcpy(addrp, ent->h_addr_list[i], ent->h_length); ai = evutil_new_addrinfo(sa, socklen, hints); if (!ai) { evutil_freeaddrinfo(res); return NULL; } res = evutil_addrinfo_append(res, ai); } if (res && ((hints->ai_flags & EVUTIL_AI_CANONNAME) && ent->h_name)) { res->ai_canonname = mm_strdup(ent->h_name); if (res->ai_canonname == NULL) { evutil_freeaddrinfo(res); return NULL; } } return res; } #endif /* If the EVUTIL_AI_ADDRCONFIG flag is set on hints->ai_flags, and * hints->ai_family is PF_UNSPEC, then revise the value of hints->ai_family so * that we'll only get addresses we could maybe connect to. */ void evutil_adjust_hints_for_addrconfig(struct evutil_addrinfo *hints) { if (!(hints->ai_flags & EVUTIL_AI_ADDRCONFIG)) return; if (hints->ai_family != PF_UNSPEC) return; if (!have_checked_interfaces) evutil_check_interfaces(0); if (had_ipv4_address && !had_ipv6_address) { hints->ai_family = PF_INET; } else if (!had_ipv4_address && had_ipv6_address) { hints->ai_family = PF_INET6; } } #ifdef USE_NATIVE_GETADDRINFO static int need_numeric_port_hack_=0; static int need_socktype_protocol_hack_=0; static int tested_for_getaddrinfo_hacks=0; /* Some older BSDs (like OpenBSD up to 4.6) used to believe that giving a numeric port without giving an ai_socktype was verboten. We test for this so we can apply an appropriate workaround. If it turns out that the bug is present, then: - If nodename==NULL and servname is numeric, we build an answer ourselves using evutil_getaddrinfo_common(). - If nodename!=NULL and servname is numeric, then we set servname=NULL when calling getaddrinfo, and post-process the result to set the ports on it. We test for this bug at runtime, since otherwise we can't have the same binary run on multiple BSD versions. - Some versions of Solaris believe that it's nice to leave to protocol field set to 0. We test for this so we can apply an appropriate workaround. */ static void test_for_getaddrinfo_hacks(void) { int r, r2; struct evutil_addrinfo *ai=NULL, *ai2=NULL; struct evutil_addrinfo hints; memset(&hints,0,sizeof(hints)); hints.ai_family = PF_UNSPEC; hints.ai_flags = #ifdef AI_NUMERICHOST AI_NUMERICHOST | #endif #ifdef AI_NUMERICSERV AI_NUMERICSERV | #endif 0; r = getaddrinfo("1.2.3.4", "80", &hints, &ai); hints.ai_socktype = SOCK_STREAM; r2 = getaddrinfo("1.2.3.4", "80", &hints, &ai2); if (r2 == 0 && r != 0) { need_numeric_port_hack_=1; } if (ai2 && ai2->ai_protocol == 0) { need_socktype_protocol_hack_=1; } if (ai) freeaddrinfo(ai); if (ai2) freeaddrinfo(ai2); tested_for_getaddrinfo_hacks=1; } static inline int need_numeric_port_hack(void) { if (!tested_for_getaddrinfo_hacks) test_for_getaddrinfo_hacks(); return need_numeric_port_hack_; } static inline int need_socktype_protocol_hack(void) { if (!tested_for_getaddrinfo_hacks) test_for_getaddrinfo_hacks(); return need_socktype_protocol_hack_; } static void apply_numeric_port_hack(int port, struct evutil_addrinfo **ai) { /* Now we run through the list and set the ports on all of the * results where ports would make sense. */ for ( ; *ai; ai = &(*ai)->ai_next) { struct sockaddr *sa = (*ai)->ai_addr; if (sa && sa->sa_family == AF_INET) { struct sockaddr_in *sin = (struct sockaddr_in*)sa; sin->sin_port = htons(port); } else if (sa && sa->sa_family == AF_INET6) { struct sockaddr_in6 *sin6 = (struct sockaddr_in6*)sa; sin6->sin6_port = htons(port); } else { /* A numeric port makes no sense here; remove this one * from the list. */ struct evutil_addrinfo *victim = *ai; *ai = victim->ai_next; victim->ai_next = NULL; freeaddrinfo(victim); } } } static int apply_socktype_protocol_hack(struct evutil_addrinfo *ai) { struct evutil_addrinfo *ai_new; for (; ai; ai = ai->ai_next) { evutil_getaddrinfo_infer_protocols(ai); if (ai->ai_socktype || ai->ai_protocol) continue; ai_new = mm_malloc(sizeof(*ai_new)); if (!ai_new) return -1; memcpy(ai_new, ai, sizeof(*ai_new)); ai->ai_socktype = SOCK_STREAM; ai->ai_protocol = IPPROTO_TCP; ai_new->ai_socktype = SOCK_DGRAM; ai_new->ai_protocol = IPPROTO_UDP; ai_new->ai_next = ai->ai_next; ai->ai_next = ai_new; } return 0; } #endif int evutil_getaddrinfo(const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, struct evutil_addrinfo **res) { #ifdef USE_NATIVE_GETADDRINFO struct evutil_addrinfo hints; int portnum=-1, need_np_hack, err; if (hints_in) { memcpy(&hints, hints_in, sizeof(hints)); } else { memset(&hints, 0, sizeof(hints)); hints.ai_family = PF_UNSPEC; } #ifndef AI_ADDRCONFIG /* Not every system has AI_ADDRCONFIG, so fake it. */ if (hints.ai_family == PF_UNSPEC && (hints.ai_flags & EVUTIL_AI_ADDRCONFIG)) { evutil_adjust_hints_for_addrconfig(&hints); } #endif #ifndef AI_NUMERICSERV /* Not every system has AI_NUMERICSERV, so fake it. */ if (hints.ai_flags & EVUTIL_AI_NUMERICSERV) { if (servname && parse_numeric_servname(servname)<0) return EVUTIL_EAI_NONAME; } #endif /* Enough operating systems handle enough common non-resolve * cases here weirdly enough that we are better off just * overriding them. For example: * * - Windows doesn't like to infer the protocol from the * socket type, or fill in socket or protocol types much at * all. It also seems to do its own broken implicit * always-on version of AI_ADDRCONFIG that keeps it from * ever resolving even a literal IPv6 address when * ai_addrtype is PF_UNSPEC. */ #ifdef WIN32 { int tmp_port; err = evutil_getaddrinfo_common(nodename,servname,&hints, res, &tmp_port); if (err == 0 || err == EVUTIL_EAI_MEMORY || err == EVUTIL_EAI_NONAME) return err; /* If we make it here, the system getaddrinfo can * have a crack at it. */ } #endif /* See documentation for need_numeric_port_hack above.*/ need_np_hack = need_numeric_port_hack() && servname && !hints.ai_socktype && ((portnum=parse_numeric_servname(servname)) >= 0); if (need_np_hack) { if (!nodename) return evutil_getaddrinfo_common( NULL,servname,&hints, res, &portnum); servname = NULL; } if (need_socktype_protocol_hack()) { evutil_getaddrinfo_infer_protocols(&hints); } /* Make sure that we didn't actually steal any AI_FLAGS values that * the system is using. (This is a constant expression, and should ge * optimized out.) * * XXXX Turn this into a compile-time failure rather than a run-time * failure. */ EVUTIL_ASSERT((ALL_NONNATIVE_AI_FLAGS & ALL_NATIVE_AI_FLAGS) == 0); /* Clear any flags that only libevent understands. */ hints.ai_flags &= ~ALL_NONNATIVE_AI_FLAGS; err = getaddrinfo(nodename, servname, &hints, res); if (need_np_hack) apply_numeric_port_hack(portnum, res); if (need_socktype_protocol_hack()) { if (apply_socktype_protocol_hack(*res) < 0) { evutil_freeaddrinfo(*res); *res = NULL; return EVUTIL_EAI_MEMORY; } } return err; #else int port=0, err; struct hostent *ent = NULL; struct evutil_addrinfo hints; if (hints_in) { memcpy(&hints, hints_in, sizeof(hints)); } else { memset(&hints, 0, sizeof(hints)); hints.ai_family = PF_UNSPEC; } evutil_adjust_hints_for_addrconfig(&hints); err = evutil_getaddrinfo_common(nodename, servname, &hints, res, &port); if (err != EVUTIL_EAI_NEED_RESOLVE) { /* We either succeeded or failed. No need to continue */ return err; } err = 0; /* Use any of the various gethostbyname_r variants as available. */ { #ifdef _EVENT_HAVE_GETHOSTBYNAME_R_6_ARG /* This one is what glibc provides. */ char buf[2048]; struct hostent hostent; int r; r = gethostbyname_r(nodename, &hostent, buf, sizeof(buf), &ent, &err); #elif defined(_EVENT_HAVE_GETHOSTBYNAME_R_5_ARG) char buf[2048]; struct hostent hostent; ent = gethostbyname_r(nodename, &hostent, buf, sizeof(buf), &err); #elif defined(_EVENT_HAVE_GETHOSTBYNAME_R_3_ARG) struct hostent_data data; struct hostent hostent; memset(&data, 0, sizeof(data)); err = gethostbyname_r(nodename, &hostent, &data); ent = err ? NULL : &hostent; #else /* fall back to gethostbyname. */ /* XXXX This needs a lock everywhere but Windows. */ ent = gethostbyname(nodename); #ifdef WIN32 err = WSAGetLastError(); #else err = h_errno; #endif #endif /* Now we have either ent or err set. */ if (!ent) { /* XXX is this right for windows ? */ switch (err) { case TRY_AGAIN: return EVUTIL_EAI_AGAIN; case NO_RECOVERY: default: return EVUTIL_EAI_FAIL; case HOST_NOT_FOUND: return EVUTIL_EAI_NONAME; case NO_ADDRESS: #if NO_DATA != NO_ADDRESS case NO_DATA: #endif return EVUTIL_EAI_NODATA; } } if (ent->h_addrtype != hints.ai_family && hints.ai_family != PF_UNSPEC) { /* This wasn't the type we were hoping for. Too bad * we never had a chance to ask gethostbyname for what * we wanted. */ return EVUTIL_EAI_NONAME; } /* Make sure we got _some_ answers. */ if (ent->h_length == 0) return EVUTIL_EAI_NODATA; /* If we got an address type we don't know how to make a sockaddr for, give up. */ if (ent->h_addrtype != PF_INET && ent->h_addrtype != PF_INET6) return EVUTIL_EAI_FAMILY; *res = addrinfo_from_hostent(ent, port, &hints); if (! *res) return EVUTIL_EAI_MEMORY; } return 0; #endif } void evutil_freeaddrinfo(struct evutil_addrinfo *ai) { #ifdef _EVENT_HAVE_GETADDRINFO if (!(ai->ai_flags & EVUTIL_AI_LIBEVENT_ALLOCATED)) { freeaddrinfo(ai); return; } #endif while (ai) { struct evutil_addrinfo *next = ai->ai_next; if (ai->ai_canonname) mm_free(ai->ai_canonname); mm_free(ai); ai = next; } } static evdns_getaddrinfo_fn evdns_getaddrinfo_impl = NULL; void evutil_set_evdns_getaddrinfo_fn(evdns_getaddrinfo_fn fn) { if (!evdns_getaddrinfo_impl) evdns_getaddrinfo_impl = fn; } /* Internal helper function: act like evdns_getaddrinfo if dns_base is set; * otherwise do a blocking resolve and pass the result to the callback in the * way that evdns_getaddrinfo would. */ int evutil_getaddrinfo_async(struct evdns_base *dns_base, const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, void (*cb)(int, struct evutil_addrinfo *, void *), void *arg) { if (dns_base && evdns_getaddrinfo_impl) { evdns_getaddrinfo_impl( dns_base, nodename, servname, hints_in, cb, arg); } else { struct evutil_addrinfo *ai=NULL; int err; err = evutil_getaddrinfo(nodename, servname, hints_in, &ai); cb(err, ai, arg); } return 0; } const char * evutil_gai_strerror(int err) { /* As a sneaky side-benefit, this case statement will get most * compilers to tell us if any of the error codes we defined * conflict with the platform's native error codes. */ switch (err) { case EVUTIL_EAI_CANCEL: return "Request canceled"; case 0: return "No error"; case EVUTIL_EAI_ADDRFAMILY: return "address family for nodename not supported"; case EVUTIL_EAI_AGAIN: return "temporary failure in name resolution"; case EVUTIL_EAI_BADFLAGS: return "invalid value for ai_flags"; case EVUTIL_EAI_FAIL: return "non-recoverable failure in name resolution"; case EVUTIL_EAI_FAMILY: return "ai_family not supported"; case EVUTIL_EAI_MEMORY: return "memory allocation failure"; case EVUTIL_EAI_NODATA: return "no address associated with nodename"; case EVUTIL_EAI_NONAME: return "nodename nor servname provided, or not known"; case EVUTIL_EAI_SERVICE: return "servname not supported for ai_socktype"; case EVUTIL_EAI_SOCKTYPE: return "ai_socktype not supported"; case EVUTIL_EAI_SYSTEM: return "system error"; default: #if defined(USE_NATIVE_GETADDRINFO) && defined(WIN32) return gai_strerrorA(err); #elif defined(USE_NATIVE_GETADDRINFO) return gai_strerror(err); #else return "Unknown error code"; #endif } } #ifdef WIN32 #define E(code, s) { code, (s " [" #code " ]") } static struct { int code; const char *msg; } windows_socket_errors[] = { E(WSAEINTR, "Interrupted function call"), E(WSAEACCES, "Permission denied"), E(WSAEFAULT, "Bad address"), E(WSAEINVAL, "Invalid argument"), E(WSAEMFILE, "Too many open files"), E(WSAEWOULDBLOCK, "Resource temporarily unavailable"), E(WSAEINPROGRESS, "Operation now in progress"), E(WSAEALREADY, "Operation already in progress"), E(WSAENOTSOCK, "Socket operation on nonsocket"), E(WSAEDESTADDRREQ, "Destination address required"), E(WSAEMSGSIZE, "Message too long"), E(WSAEPROTOTYPE, "Protocol wrong for socket"), E(WSAENOPROTOOPT, "Bad protocol option"), E(WSAEPROTONOSUPPORT, "Protocol not supported"), E(WSAESOCKTNOSUPPORT, "Socket type not supported"), /* What's the difference between NOTSUPP and NOSUPPORT? :) */ E(WSAEOPNOTSUPP, "Operation not supported"), E(WSAEPFNOSUPPORT, "Protocol family not supported"), E(WSAEAFNOSUPPORT, "Address family not supported by protocol family"), E(WSAEADDRINUSE, "Address already in use"), E(WSAEADDRNOTAVAIL, "Cannot assign requested address"), E(WSAENETDOWN, "Network is down"), E(WSAENETUNREACH, "Network is unreachable"), E(WSAENETRESET, "Network dropped connection on reset"), E(WSAECONNABORTED, "Software caused connection abort"), E(WSAECONNRESET, "Connection reset by peer"), E(WSAENOBUFS, "No buffer space available"), E(WSAEISCONN, "Socket is already connected"), E(WSAENOTCONN, "Socket is not connected"), E(WSAESHUTDOWN, "Cannot send after socket shutdown"), E(WSAETIMEDOUT, "Connection timed out"), E(WSAECONNREFUSED, "Connection refused"), E(WSAEHOSTDOWN, "Host is down"), E(WSAEHOSTUNREACH, "No route to host"), E(WSAEPROCLIM, "Too many processes"), /* Yes, some of these start with WSA, not WSAE. No, I don't know why. */ E(WSASYSNOTREADY, "Network subsystem is unavailable"), E(WSAVERNOTSUPPORTED, "Winsock.dll out of range"), E(WSANOTINITIALISED, "Successful WSAStartup not yet performed"), E(WSAEDISCON, "Graceful shutdown now in progress"), #ifdef WSATYPE_NOT_FOUND E(WSATYPE_NOT_FOUND, "Class type not found"), #endif E(WSAHOST_NOT_FOUND, "Host not found"), E(WSATRY_AGAIN, "Nonauthoritative host not found"), E(WSANO_RECOVERY, "This is a nonrecoverable error"), E(WSANO_DATA, "Valid name, no data record of requested type)"), /* There are some more error codes whose numeric values are marked * OS dependent. They start with WSA_, apparently for the same * reason that practitioners of some craft traditions deliberately * introduce imperfections into their baskets and rugs "to allow the * evil spirits to escape." If we catch them, then our binaries * might not report consistent results across versions of Windows. * Thus, I'm going to let them all fall through. */ { -1, NULL }, }; #undef E /** Equivalent to strerror, but for windows socket errors. */ const char * evutil_socket_error_to_string(int errcode) { /* XXXX Is there really no built-in function to do this? */ int i; for (i=0; windows_socket_errors[i].code >= 0; ++i) { if (errcode == windows_socket_errors[i].code) return windows_socket_errors[i].msg; } return strerror(errcode); } #endif int evutil_snprintf(char *buf, size_t buflen, const char *format, ...) { int r; va_list ap; va_start(ap, format); r = evutil_vsnprintf(buf, buflen, format, ap); va_end(ap); return r; } int evutil_vsnprintf(char *buf, size_t buflen, const char *format, va_list ap) { int r; if (!buflen) return 0; #if defined(_MSC_VER) || defined(WIN32) r = _vsnprintf(buf, buflen, format, ap); if (r < 0) r = _vscprintf(format, ap); #elif defined(sgi) /* Make sure we always use the correct vsnprintf on IRIX */ extern int _xpg5_vsnprintf(char * __restrict, __SGI_LIBC_NAMESPACE_QUALIFIER size_t, const char * __restrict, /* va_list */ char *); r = _xpg5_vsnprintf(buf, buflen, format, ap); #else r = vsnprintf(buf, buflen, format, ap); #endif buf[buflen-1] = '\0'; return r; } #define USE_INTERNAL_NTOP #define USE_INTERNAL_PTON const char * evutil_inet_ntop(int af, const void *src, char *dst, size_t len) { #if defined(_EVENT_HAVE_INET_NTOP) && !defined(USE_INTERNAL_NTOP) return inet_ntop(af, src, dst, len); #else if (af == AF_INET) { const struct in_addr *in = src; const ev_uint32_t a = ntohl(in->s_addr); int r; r = evutil_snprintf(dst, len, "%d.%d.%d.%d", (int)(ev_uint8_t)((a>>24)&0xff), (int)(ev_uint8_t)((a>>16)&0xff), (int)(ev_uint8_t)((a>>8 )&0xff), (int)(ev_uint8_t)((a )&0xff)); if (r<0||(size_t)r>=len) return NULL; else return dst; #ifdef AF_INET6 } else if (af == AF_INET6) { const struct in6_addr *addr = src; char buf[64], *cp; int longestGapLen = 0, longestGapPos = -1, i, curGapPos = -1, curGapLen = 0; ev_uint16_t words[8]; for (i = 0; i < 8; ++i) { words[i] = (((ev_uint16_t)addr->s6_addr[2*i])<<8) + addr->s6_addr[2*i+1]; } if (words[0] == 0 && words[1] == 0 && words[2] == 0 && words[3] == 0 && words[4] == 0 && ((words[5] == 0 && words[6] && words[7]) || (words[5] == 0xffff))) { /* This is an IPv4 address. */ if (words[5] == 0) { evutil_snprintf(buf, sizeof(buf), "::%d.%d.%d.%d", addr->s6_addr[12], addr->s6_addr[13], addr->s6_addr[14], addr->s6_addr[15]); } else { evutil_snprintf(buf, sizeof(buf), "::%x:%d.%d.%d.%d", words[5], addr->s6_addr[12], addr->s6_addr[13], addr->s6_addr[14], addr->s6_addr[15]); } if (strlen(buf) > len) return NULL; strlcpy(dst, buf, len); return dst; } i = 0; while (i < 8) { if (words[i] == 0) { curGapPos = i++; curGapLen = 1; while (i<8 && words[i] == 0) { ++i; ++curGapLen; } if (curGapLen > longestGapLen) { longestGapPos = curGapPos; longestGapLen = curGapLen; } } else { ++i; } } if (longestGapLen<=1) longestGapPos = -1; cp = buf; for (i = 0; i < 8; ++i) { if (words[i] == 0 && longestGapPos == i) { if (i == 0) *cp++ = ':'; *cp++ = ':'; while (i < 8 && words[i] == 0) ++i; --i; /* to compensate for loop increment. */ } else { evutil_snprintf(cp, sizeof(buf)-(cp-buf), "%x", (unsigned)words[i]); cp += strlen(cp); if (i != 7) *cp++ = ':'; } } *cp = '\0'; if (strlen(buf) > len) return NULL; strlcpy(dst, buf, len); return dst; #endif } else { return NULL; } #endif } int evutil_inet_pton(int af, const char *src, void *dst) { #if defined(_EVENT_HAVE_INET_PTON) && !defined(USE_INTERNAL_PTON) return inet_pton(af, src, dst); #else if (af == AF_INET) { int a,b,c,d; char more; struct in_addr *addr = dst; if (sscanf(src, "%d.%d.%d.%d%c", &a,&b,&c,&d,&more) != 4) return 0; if (a < 0 || a > 255) return 0; if (b < 0 || b > 255) return 0; if (c < 0 || c > 255) return 0; if (d < 0 || d > 255) return 0; addr->s_addr = htonl((((ev_uint32_t) a)<<24) | (b<<16) | (c<<8) | d); return 1; #ifdef AF_INET6 } else if (af == AF_INET6) { struct in6_addr *out = dst; ev_uint16_t words[8]; int gapPos = -1, i, setWords=0; const char *dot = strchr(src, '.'); const char *eow; /* end of words. */ if (dot == src) return 0; else if (!dot) eow = src+strlen(src); else { int byte1,byte2,byte3,byte4; char more; for (eow = dot-1; eow >= src && EVUTIL_ISDIGIT(*eow); --eow) ; ++eow; /* We use "scanf" because some platform inet_aton()s are too lax * about IPv4 addresses of the form "1.2.3" */ if (sscanf(eow, "%d.%d.%d.%d%c", &byte1,&byte2,&byte3,&byte4,&more) != 4) return 0; if (byte1 > 255 || byte1 < 0 || byte2 > 255 || byte2 < 0 || byte3 > 255 || byte3 < 0 || byte4 > 255 || byte4 < 0) return 0; words[6] = (byte1<<8) | byte2; words[7] = (byte3<<8) | byte4; setWords += 2; } i = 0; while (src < eow) { if (i > 7) return 0; if (EVUTIL_ISXDIGIT(*src)) { char *next; long r = strtol(src, &next, 16); if (next > 4+src) return 0; if (next == src) return 0; if (r<0 || r>65536) return 0; words[i++] = (ev_uint16_t)r; setWords++; src = next; if (*src != ':' && src != eow) return 0; ++src; } else if (*src == ':' && i > 0 && gapPos==-1) { gapPos = i; ++src; } else if (*src == ':' && i == 0 && src[1] == ':' && gapPos==-1) { gapPos = i; src += 2; } else { return 0; } } if (setWords > 8 || (setWords == 8 && gapPos != -1) || (setWords < 8 && gapPos == -1)) return 0; if (gapPos >= 0) { int nToMove = setWords - (dot ? 2 : 0) - gapPos; int gapLen = 8 - setWords; /* assert(nToMove >= 0); */ if (nToMove < 0) return -1; /* should be impossible */ memmove(&words[gapPos+gapLen], &words[gapPos], sizeof(ev_uint16_t)*nToMove); memset(&words[gapPos], 0, sizeof(ev_uint16_t)*gapLen); } for (i = 0; i < 8; ++i) { out->s6_addr[2*i ] = words[i] >> 8; out->s6_addr[2*i+1] = words[i] & 0xff; } return 1; #endif } else { return -1; } #endif } int evutil_parse_sockaddr_port(const char *ip_as_string, struct sockaddr *out, int *outlen) { int port; char buf[128]; const char *cp, *addr_part, *port_part; int is_ipv6; /* recognized formats are: * [ipv6]:port * ipv6 * [ipv6] * ipv4:port * ipv4 */ cp = strchr(ip_as_string, ':'); if (*ip_as_string == '[') { int len; if (!(cp = strchr(ip_as_string, ']'))) { return -1; } len = (int) ( cp-(ip_as_string + 1) ); if (len > (int)sizeof(buf)-1) { return -1; } memcpy(buf, ip_as_string+1, len); buf[len] = '\0'; addr_part = buf; if (cp[1] == ':') port_part = cp+2; else port_part = NULL; is_ipv6 = 1; } else if (cp && strchr(cp+1, ':')) { is_ipv6 = 1; addr_part = ip_as_string; port_part = NULL; } else if (cp) { is_ipv6 = 0; if (cp - ip_as_string > (int)sizeof(buf)-1) { return -1; } memcpy(buf, ip_as_string, cp-ip_as_string); buf[cp-ip_as_string] = '\0'; addr_part = buf; port_part = cp+1; } else { addr_part = ip_as_string; port_part = NULL; is_ipv6 = 0; } if (port_part == NULL) { port = 0; } else { port = atoi(port_part); if (port <= 0 || port > 65535) { return -1; } } if (!addr_part) return -1; /* Should be impossible. */ #ifdef AF_INET6 if (is_ipv6) { struct sockaddr_in6 sin6; memset(&sin6, 0, sizeof(sin6)); #ifdef _EVENT_HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN sin6.sin6_len = sizeof(sin6); #endif sin6.sin6_family = AF_INET6; sin6.sin6_port = htons(port); if (1 != evutil_inet_pton(AF_INET6, addr_part, &sin6.sin6_addr)) return -1; if ((int)sizeof(sin6) > *outlen) return -1; memset(out, 0, *outlen); memcpy(out, &sin6, sizeof(sin6)); *outlen = sizeof(sin6); return 0; } else #endif { struct sockaddr_in sin; memset(&sin, 0, sizeof(sin)); #ifdef _EVENT_HAVE_STRUCT_SOCKADDR_IN_SIN_LEN sin.sin_len = sizeof(sin); #endif sin.sin_family = AF_INET; sin.sin_port = htons(port); if (1 != evutil_inet_pton(AF_INET, addr_part, &sin.sin_addr)) return -1; if ((int)sizeof(sin) > *outlen) return -1; memset(out, 0, *outlen); memcpy(out, &sin, sizeof(sin)); *outlen = sizeof(sin); return 0; } } const char * evutil_format_sockaddr_port(const struct sockaddr *sa, char *out, size_t outlen) { char b[128]; const char *res=NULL; int port; if (sa->sa_family == AF_INET) { const struct sockaddr_in *sin = (const struct sockaddr_in*)sa; res = evutil_inet_ntop(AF_INET, &sin->sin_addr,b,sizeof(b)); port = ntohs(sin->sin_port); if (res) { evutil_snprintf(out, outlen, "%s:%d", b, port); return out; } } else if (sa->sa_family == AF_INET6) { const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6*)sa; res = evutil_inet_ntop(AF_INET6, &sin6->sin6_addr,b,sizeof(b)); port = ntohs(sin6->sin6_port); if (res) { evutil_snprintf(out, outlen, "[%s]:%d", b, port); return out; } } evutil_snprintf(out, outlen, "", (int)sa->sa_family); return out; } int evutil_sockaddr_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2, int include_port) { int r; if (0 != (r = (sa1->sa_family - sa2->sa_family))) return r; if (sa1->sa_family == AF_INET) { const struct sockaddr_in *sin1, *sin2; sin1 = (const struct sockaddr_in *)sa1; sin2 = (const struct sockaddr_in *)sa2; if (sin1->sin_addr.s_addr < sin2->sin_addr.s_addr) return -1; else if (sin1->sin_addr.s_addr > sin2->sin_addr.s_addr) return 1; else if (include_port && (r = ((int)sin1->sin_port - (int)sin2->sin_port))) return r; else return 0; } #ifdef AF_INET6 else if (sa1->sa_family == AF_INET6) { const struct sockaddr_in6 *sin1, *sin2; sin1 = (const struct sockaddr_in6 *)sa1; sin2 = (const struct sockaddr_in6 *)sa2; if ((r = memcmp(sin1->sin6_addr.s6_addr, sin2->sin6_addr.s6_addr, 16))) return r; else if (include_port && (r = ((int)sin1->sin6_port - (int)sin2->sin6_port))) return r; else return 0; } #endif return 1; } /* Tables to implement ctypes-replacement EVUTIL_IS*() functions. Each table * has 256 bits to look up whether a character is in some set or not. This * fails on non-ASCII platforms, but so does every other place where we * take a char and write it onto the network. **/ static const ev_uint32_t EVUTIL_ISALPHA_TABLE[8] = { 0, 0, 0x7fffffe, 0x7fffffe, 0, 0, 0, 0 }; static const ev_uint32_t EVUTIL_ISALNUM_TABLE[8] = { 0, 0x3ff0000, 0x7fffffe, 0x7fffffe, 0, 0, 0, 0 }; static const ev_uint32_t EVUTIL_ISSPACE_TABLE[8] = { 0x3e00, 0x1, 0, 0, 0, 0, 0, 0 }; static const ev_uint32_t EVUTIL_ISXDIGIT_TABLE[8] = { 0, 0x3ff0000, 0x7e, 0x7e, 0, 0, 0, 0 }; static const ev_uint32_t EVUTIL_ISDIGIT_TABLE[8] = { 0, 0x3ff0000, 0, 0, 0, 0, 0, 0 }; static const ev_uint32_t EVUTIL_ISPRINT_TABLE[8] = { 0, 0xffffffff, 0xffffffff, 0x7fffffff, 0, 0, 0, 0x0 }; static const ev_uint32_t EVUTIL_ISUPPER_TABLE[8] = { 0, 0, 0x7fffffe, 0, 0, 0, 0, 0 }; static const ev_uint32_t EVUTIL_ISLOWER_TABLE[8] = { 0, 0, 0, 0x7fffffe, 0, 0, 0, 0 }; /* Upper-casing and lowercasing tables to map characters to upper/lowercase * equivalents. */ static const unsigned char EVUTIL_TOUPPER_TABLE[256] = { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31, 32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47, 48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63, 64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79, 80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95, 96,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79, 80,81,82,83,84,85,86,87,88,89,90,123,124,125,126,127, 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143, 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159, 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175, 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207, 208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223, 224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239, 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255, }; static const unsigned char EVUTIL_TOLOWER_TABLE[256] = { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31, 32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47, 48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63, 64,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111, 112,113,114,115,116,117,118,119,120,121,122,91,92,93,94,95, 96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111, 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143, 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159, 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175, 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207, 208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223, 224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239, 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255, }; #define IMPL_CTYPE_FN(name) \ int EVUTIL_##name(char c) { \ ev_uint8_t u = c; \ return !!(EVUTIL_##name##_TABLE[(u >> 5) & 7] & (1 << (u & 31))); \ } IMPL_CTYPE_FN(ISALPHA) IMPL_CTYPE_FN(ISALNUM) IMPL_CTYPE_FN(ISSPACE) IMPL_CTYPE_FN(ISDIGIT) IMPL_CTYPE_FN(ISXDIGIT) IMPL_CTYPE_FN(ISPRINT) IMPL_CTYPE_FN(ISLOWER) IMPL_CTYPE_FN(ISUPPER) char EVUTIL_TOLOWER(char c) { return ((char)EVUTIL_TOLOWER_TABLE[(ev_uint8_t)c]); } char EVUTIL_TOUPPER(char c) { return ((char)EVUTIL_TOUPPER_TABLE[(ev_uint8_t)c]); } int evutil_ascii_strcasecmp(const char *s1, const char *s2) { char c1, c2; while (1) { c1 = EVUTIL_TOLOWER(*s1++); c2 = EVUTIL_TOLOWER(*s2++); if (c1 < c2) return -1; else if (c1 > c2) return 1; else if (c1 == 0) return 0; } } int evutil_ascii_strncasecmp(const char *s1, const char *s2, size_t n) { char c1, c2; while (n--) { c1 = EVUTIL_TOLOWER(*s1++); c2 = EVUTIL_TOLOWER(*s2++); if (c1 < c2) return -1; else if (c1 > c2) return 1; else if (c1 == 0) return 0; } return 0; } static int evutil_issetugid(void) { #ifdef _EVENT_HAVE_ISSETUGID return issetugid(); #else #ifdef _EVENT_HAVE_GETEUID if (getuid() != geteuid()) return 1; #endif #ifdef _EVENT_HAVE_GETEGID if (getgid() != getegid()) return 1; #endif return 0; #endif } const char * evutil_getenv(const char *varname) { if (evutil_issetugid()) return NULL; return getenv(varname); } long _evutil_weakrand(void) { #ifdef WIN32 return rand(); #else return random(); #endif } /** * Volatile pointer to memset: we use this to keep the compiler from * eliminating our call to memset. */ void * (*volatile evutil_memset_volatile_)(void *, int, size_t) = memset; void evutil_memclear_(void *mem, size_t len) { evutil_memset_volatile_(mem, 0, len); } int evutil_sockaddr_is_loopback(const struct sockaddr *addr) { static const char LOOPBACK_S6[16] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1"; if (addr->sa_family == AF_INET) { struct sockaddr_in *sin = (struct sockaddr_in *)addr; return (ntohl(sin->sin_addr.s_addr) & 0xff000000) == 0x7f000000; } else if (addr->sa_family == AF_INET6) { struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr; return !memcmp(sin6->sin6_addr.s6_addr, LOOPBACK_S6, 16); } return 0; } #define MAX_SECONDS_IN_MSEC_LONG \ (((LONG_MAX) - 999) / 1000) long evutil_tv_to_msec(const struct timeval *tv) { if (tv->tv_usec > 1000000 || tv->tv_sec > MAX_SECONDS_IN_MSEC_LONG) return -1; return (tv->tv_sec * 1000) + ((tv->tv_usec + 999) / 1000); } int evutil_hex_char_to_int(char c) { switch(c) { case '0': return 0; case '1': return 1; case '2': return 2; case '3': return 3; case '4': return 4; case '5': return 5; case '6': return 6; case '7': return 7; case '8': return 8; case '9': return 9; case 'A': case 'a': return 10; case 'B': case 'b': return 11; case 'C': case 'c': return 12; case 'D': case 'd': return 13; case 'E': case 'e': return 14; case 'F': case 'f': return 15; } return -1; } #ifdef WIN32 HANDLE evutil_load_windows_system_library(const TCHAR *library_name) { TCHAR path[MAX_PATH]; unsigned n; n = GetSystemDirectory(path, MAX_PATH); if (n == 0 || n + _tcslen(library_name) + 2 >= MAX_PATH) return 0; _tcscat(path, TEXT("\\")); _tcscat(path, library_name); return LoadLibrary(path); } #endif dnscrypt-proxy-1.9.4/src/libevent-modified/evutil.h000644 000765 000024 00000003311 13037731714 022010 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVUTIL_H_ #define _EVUTIL_H_ /** @file evutil.h Utility and compatibility functions for Libevent. The header is deprecated in Libevent 2.0 and later; please use instead. */ #include #endif /* _EVUTIL_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/evutil_rand.c000644 000765 000024 00000011565 13040505522 023007 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* This file has our secure PRNG code. On platforms that have arc4random(), * we just use that. Otherwise, we include arc4random.c as a bunch of static * functions, and wrap it lightly. We don't expose the arc4random*() APIs * because A) they aren't in our namespace, and B) it's not nice to name your * APIs after their implementations. We keep them in a separate file * so that other people can rip it out and use it for whatever. */ #include "event2/event-config.h" #include #include "util-internal.h" #include "evthread-internal.h" #include #ifdef _EVENT_HAVE_ARC4RANDOM #include int evutil_secure_rng_set_urandom_device_file(char *fname) { (void) fname; return -1; } int evutil_secure_rng_init(void) { /* call arc4random() now to force it to self-initialize */ (void) arc4random(); return 0; } int evutil_secure_rng_global_setup_locks_(const int enable_locks) { return 0; } static void ev_arc4random_buf(void *buf, size_t n) { #if defined(_EVENT_HAVE_ARC4RANDOM_BUF) && !defined(__APPLE__) arc4random_buf(buf, n); return; #else unsigned char *b = buf; #if defined(_EVENT_HAVE_ARC4RANDOM_BUF) /* OSX 10.7 introducd arc4random_buf, so if you build your program * there, you'll get surprised when older versions of OSX fail to run. * To solve this, we can check whether the function pointer is set, * and fall back otherwise. (OSX does this using some linker * trickery.) */ { void (*tptr)(void *,size_t) = (void (*)(void*,size_t))arc4random_buf; if (tptr != NULL) { arc4random_buf(buf, n); return; } } #endif /* Make sure that we start out with b at a 4-byte alignment; plenty * of CPUs care about this for 32-bit access. */ if (n >= 4 && ((ev_uintptr_t)b) & 3) { ev_uint32_t u = arc4random(); int n_bytes = 4 - (((ev_uintptr_t)b) & 3); memcpy(b, &u, n_bytes); b += n_bytes; n -= n_bytes; } while (n >= 4) { *(ev_uint32_t*)b = arc4random(); b += 4; n -= 4; } if (n) { ev_uint32_t u = arc4random(); memcpy(b, &u, n); } #endif } #else /* !_EVENT_HAVE_ARC4RANDOM { */ #ifdef _EVENT_ssize_t #define ssize_t _EVENT_SSIZE_t #endif #define ARC4RANDOM_EXPORT static #define _ARC4_LOCK() EVLOCK_LOCK(arc4rand_lock, 0) #define _ARC4_UNLOCK() EVLOCK_UNLOCK(arc4rand_lock, 0) #ifndef _EVENT_DISABLE_THREAD_SUPPORT static void *arc4rand_lock; #endif #define ARC4RANDOM_UINT32 ev_uint32_t #define ARC4RANDOM_NOSTIR #define ARC4RANDOM_NORANDOM #define ARC4RANDOM_NOUNIFORM #include "./arc4random.c" #ifndef _EVENT_DISABLE_THREAD_SUPPORT int evutil_secure_rng_global_setup_locks_(const int enable_locks) { EVTHREAD_SETUP_GLOBAL_LOCK(arc4rand_lock, 0); return 0; } #endif int evutil_secure_rng_set_urandom_device_file(char *fname) { #ifdef TRY_SEED_URANDOM _ARC4_LOCK(); arc4random_urandom_filename = fname; _ARC4_UNLOCK(); #endif return 0; } int evutil_secure_rng_init(void) { int val; _ARC4_LOCK(); if (!arc4_seeded_ok) arc4_stir(); val = arc4_seeded_ok ? 0 : -1; _ARC4_UNLOCK(); return val; } static void ev_arc4random_buf(void *buf, size_t n) { arc4random_buf(buf, n); } #endif /* } !_EVENT_HAVE_ARC4RANDOM */ void evutil_secure_rng_get_bytes(void *buf, size_t n) { ev_arc4random_buf(buf, n); } void evutil_secure_rng_add_bytes(const char *buf, size_t n) { #if !defined(_EVENT_HAVE_ARC4RANDOM) || defined(_EVENT_HAVE_ARC4RANDOM_ADDRANDOM) arc4random_addrandom((unsigned char*)buf, n>(size_t)INT_MAX ? INT_MAX : (int)n); #else (void) buf; (void) n; #endif } dnscrypt-proxy-1.9.4/src/libevent-modified/ht-internal.h000644 000765 000024 00000070742 13037731714 022741 0ustar00jstaff000000 000000 /* Based on work Copyright 2002 Christopher Clark */ /* Copyright 2005-2012 Nick Mathewson */ /* Copyright 2009-2012 Niels Provos and Nick Mathewson */ /* See license at end. */ /* Based on ideas by Christopher Clark and interfaces from Niels Provos. */ #ifndef _EVENT_HT_H #define _EVENT_HT_H #define HT_HEAD(name, type) \ struct name { \ /* The hash table itself. */ \ struct type **hth_table; \ /* How long is the hash table? */ \ unsigned hth_table_length; \ /* How many elements does the table contain? */ \ unsigned hth_n_entries; \ /* How many elements will we allow in the table before resizing it? */ \ unsigned hth_load_limit; \ /* Position of hth_table_length in the primes table. */ \ int hth_prime_idx; \ } #define HT_INITIALIZER() \ { NULL, 0, 0, 0, -1 } #ifdef HT_CACHE_HASH_VALUES #define HT_ENTRY(type) \ struct { \ struct type *hte_next; \ unsigned hte_hash; \ } #else #define HT_ENTRY(type) \ struct { \ struct type *hte_next; \ } #endif #define HT_EMPTY(head) \ ((head)->hth_n_entries == 0) /* How many elements in 'head'? */ #define HT_SIZE(head) \ ((head)->hth_n_entries) #define HT_FIND(name, head, elm) name##_HT_FIND((head), (elm)) #define HT_INSERT(name, head, elm) name##_HT_INSERT((head), (elm)) #define HT_REPLACE(name, head, elm) name##_HT_REPLACE((head), (elm)) #define HT_REMOVE(name, head, elm) name##_HT_REMOVE((head), (elm)) #define HT_START(name, head) name##_HT_START(head) #define HT_NEXT(name, head, elm) name##_HT_NEXT((head), (elm)) #define HT_NEXT_RMV(name, head, elm) name##_HT_NEXT_RMV((head), (elm)) #define HT_CLEAR(name, head) name##_HT_CLEAR(head) #define HT_INIT(name, head) name##_HT_INIT(head) /* Helper: */ static inline unsigned ht_improve_hash(unsigned h) { /* Aim to protect against poor hash functions by adding logic here * - logic taken from java 1.4 hashtable source */ h += ~(h << 9); h ^= ((h >> 14) | (h << 18)); /* >>> */ h += (h << 4); h ^= ((h >> 10) | (h << 22)); /* >>> */ return h; } #if 0 /** Basic string hash function, from Java standard String.hashCode(). */ static inline unsigned ht_string_hash(const char *s) { unsigned h = 0; int m = 1; while (*s) { h += ((signed char)*s++)*m; m = (m<<5)-1; /* m *= 31 */ } return h; } #endif /** Basic string hash function, from Python's str.__hash__() */ static inline unsigned ht_string_hash(const char *s) { unsigned h; const unsigned char *cp = (const unsigned char *)s; h = *cp << 7; while (*cp) { h = (1000003*h) ^ *cp++; } /* This conversion truncates the length of the string, but that's ok. */ h ^= (unsigned)(cp-(const unsigned char*)s); return h; } #ifdef HT_CACHE_HASH_VALUES #define _HT_SET_HASH(elm, field, hashfn) \ do { (elm)->field.hte_hash = hashfn(elm); } while (0) #define _HT_SET_HASHVAL(elm, field, val) \ do { (elm)->field.hte_hash = (val); } while (0) #define _HT_ELT_HASH(elm, field, hashfn) \ ((elm)->field.hte_hash) #else #define _HT_SET_HASH(elm, field, hashfn) \ ((void)0) #define _HT_ELT_HASH(elm, field, hashfn) \ (hashfn(elm)) #define _HT_SET_HASHVAL(elm, field, val) \ ((void)0) #endif /* Helper: alias for the bucket containing 'elm'. */ #define _HT_BUCKET(head, field, elm, hashfn) \ ((head)->hth_table[_HT_ELT_HASH(elm,field,hashfn) % head->hth_table_length]) #define HT_FOREACH(x, name, head) \ for ((x) = HT_START(name, head); \ (x) != NULL; \ (x) = HT_NEXT(name, head, x)) #define HT_PROTOTYPE(name, type, field, hashfn, eqfn) \ int name##_HT_GROW(struct name *ht, unsigned min_capacity); \ void name##_HT_CLEAR(struct name *ht); \ int _##name##_HT_REP_IS_BAD(const struct name *ht); \ static inline void \ name##_HT_INIT(struct name *head) { \ head->hth_table_length = 0; \ head->hth_table = NULL; \ head->hth_n_entries = 0; \ head->hth_load_limit = 0; \ head->hth_prime_idx = -1; \ } \ /* Helper: returns a pointer to the right location in the table \ * 'head' to find or insert the element 'elm'. */ \ static inline struct type ** \ _##name##_HT_FIND_P(struct name *head, struct type *elm) \ { \ struct type **p; \ if (!head->hth_table) \ return NULL; \ p = &_HT_BUCKET(head, field, elm, hashfn); \ while (*p) { \ if (eqfn(*p, elm)) \ return p; \ p = &(*p)->field.hte_next; \ } \ return p; \ } \ /* Return a pointer to the element in the table 'head' matching 'elm', \ * or NULL if no such element exists */ \ static inline struct type * \ name##_HT_FIND(const struct name *head, struct type *elm) \ { \ struct type **p; \ struct name *h = (struct name *) head; \ _HT_SET_HASH(elm, field, hashfn); \ p = _##name##_HT_FIND_P(h, elm); \ return p ? *p : NULL; \ } \ /* Insert the element 'elm' into the table 'head'. Do not call this \ * function if the table might already contain a matching element. */ \ static inline void \ name##_HT_INSERT(struct name *head, struct type *elm) \ { \ struct type **p; \ if (!head->hth_table || head->hth_n_entries >= head->hth_load_limit) \ name##_HT_GROW(head, head->hth_n_entries+1); \ ++head->hth_n_entries; \ _HT_SET_HASH(elm, field, hashfn); \ p = &_HT_BUCKET(head, field, elm, hashfn); \ elm->field.hte_next = *p; \ *p = elm; \ } \ /* Insert the element 'elm' into the table 'head'. If there already \ * a matching element in the table, replace that element and return \ * it. */ \ static inline struct type * \ name##_HT_REPLACE(struct name *head, struct type *elm) \ { \ struct type **p, *r; \ if (!head->hth_table || head->hth_n_entries >= head->hth_load_limit) \ name##_HT_GROW(head, head->hth_n_entries+1); \ _HT_SET_HASH(elm, field, hashfn); \ p = _##name##_HT_FIND_P(head, elm); \ r = *p; \ *p = elm; \ if (r && (r!=elm)) { \ elm->field.hte_next = r->field.hte_next; \ r->field.hte_next = NULL; \ return r; \ } else { \ ++head->hth_n_entries; \ return NULL; \ } \ } \ /* Remove any element matching 'elm' from the table 'head'. If such \ * an element is found, return it; otherwise return NULL. */ \ static inline struct type * \ name##_HT_REMOVE(struct name *head, struct type *elm) \ { \ struct type **p, *r; \ _HT_SET_HASH(elm, field, hashfn); \ p = _##name##_HT_FIND_P(head,elm); \ if (!p || !*p) \ return NULL; \ r = *p; \ *p = r->field.hte_next; \ r->field.hte_next = NULL; \ --head->hth_n_entries; \ return r; \ } \ /* Invoke the function 'fn' on every element of the table 'head', \ * using 'data' as its second argument. If the function returns \ * nonzero, remove the most recently examined element before invoking \ * the function again. */ \ static inline void \ name##_HT_FOREACH_FN(struct name *head, \ int (*fn)(struct type *, void *), \ void *data) \ { \ unsigned idx; \ struct type **p, **nextp, *next; \ if (!head->hth_table) \ return; \ for (idx=0; idx < head->hth_table_length; ++idx) { \ p = &head->hth_table[idx]; \ while (*p) { \ nextp = &(*p)->field.hte_next; \ next = *nextp; \ if (fn(*p, data)) { \ --head->hth_n_entries; \ *p = next; \ } else { \ p = nextp; \ } \ } \ } \ } \ /* Return a pointer to the first element in the table 'head', under \ * an arbitrary order. This order is stable under remove operations, \ * but not under others. If the table is empty, return NULL. */ \ static inline struct type ** \ name##_HT_START(struct name *head) \ { \ unsigned b = 0; \ while (b < head->hth_table_length) { \ if (head->hth_table[b]) \ return &head->hth_table[b]; \ ++b; \ } \ return NULL; \ } \ /* Return the next element in 'head' after 'elm', under the arbitrary \ * order used by HT_START. If there are no more elements, return \ * NULL. If 'elm' is to be removed from the table, you must call \ * this function for the next value before you remove it. \ */ \ static inline struct type ** \ name##_HT_NEXT(struct name *head, struct type **elm) \ { \ if ((*elm)->field.hte_next) { \ return &(*elm)->field.hte_next; \ } else { \ unsigned b = (_HT_ELT_HASH(*elm, field, hashfn) % head->hth_table_length)+1; \ while (b < head->hth_table_length) { \ if (head->hth_table[b]) \ return &head->hth_table[b]; \ ++b; \ } \ return NULL; \ } \ } \ static inline struct type ** \ name##_HT_NEXT_RMV(struct name *head, struct type **elm) \ { \ unsigned h = _HT_ELT_HASH(*elm, field, hashfn); \ *elm = (*elm)->field.hte_next; \ --head->hth_n_entries; \ if (*elm) { \ return elm; \ } else { \ unsigned b = (h % head->hth_table_length)+1; \ while (b < head->hth_table_length) { \ if (head->hth_table[b]) \ return &head->hth_table[b]; \ ++b; \ } \ return NULL; \ } \ } #define HT_GENERATE(name, type, field, hashfn, eqfn, load, mallocfn, \ reallocfn, freefn) \ static unsigned name##_PRIMES[] = { \ 53, 97, 193, 389, \ 769, 1543, 3079, 6151, \ 12289, 24593, 49157, 98317, \ 196613, 393241, 786433, 1572869, \ 3145739, 6291469, 12582917, 25165843, \ 50331653, 100663319, 201326611, 402653189, \ 805306457, 1610612741 \ }; \ static unsigned name##_N_PRIMES = \ (unsigned)(sizeof(name##_PRIMES)/sizeof(name##_PRIMES[0])); \ /* Expand the internal table of 'head' until it is large enough to \ * hold 'size' elements. Return 0 on success, -1 on allocation \ * failure. */ \ int \ name##_HT_GROW(struct name *head, unsigned size) \ { \ unsigned new_len, new_load_limit; \ int prime_idx; \ struct type **new_table; \ if (head->hth_prime_idx == (int)name##_N_PRIMES - 1) \ return 0; \ if (head->hth_load_limit > size) \ return 0; \ prime_idx = head->hth_prime_idx; \ do { \ new_len = name##_PRIMES[++prime_idx]; \ new_load_limit = (unsigned)(load*new_len); \ } while (new_load_limit <= size && \ prime_idx < (int)name##_N_PRIMES); \ if ((new_table = mallocfn(new_len*sizeof(struct type*)))) { \ unsigned b; \ memset(new_table, 0, new_len*sizeof(struct type*)); \ for (b = 0; b < head->hth_table_length; ++b) { \ struct type *elm, *next; \ unsigned b2; \ elm = head->hth_table[b]; \ while (elm) { \ next = elm->field.hte_next; \ b2 = _HT_ELT_HASH(elm, field, hashfn) % new_len; \ elm->field.hte_next = new_table[b2]; \ new_table[b2] = elm; \ elm = next; \ } \ } \ if (head->hth_table) \ freefn(head->hth_table); \ head->hth_table = new_table; \ } else { \ unsigned b, b2; \ new_table = reallocfn(head->hth_table, new_len*sizeof(struct type*)); \ if (!new_table) return -1; \ memset(new_table + head->hth_table_length, 0, \ (new_len - head->hth_table_length)*sizeof(struct type*)); \ for (b=0; b < head->hth_table_length; ++b) { \ struct type *e, **pE; \ for (pE = &new_table[b], e = *pE; e != NULL; e = *pE) { \ b2 = _HT_ELT_HASH(e, field, hashfn) % new_len; \ if (b2 == b) { \ pE = &e->field.hte_next; \ } else { \ *pE = e->field.hte_next; \ e->field.hte_next = new_table[b2]; \ new_table[b2] = e; \ } \ } \ } \ head->hth_table = new_table; \ } \ head->hth_table_length = new_len; \ head->hth_prime_idx = prime_idx; \ head->hth_load_limit = new_load_limit; \ return 0; \ } \ /* Free all storage held by 'head'. Does not free 'head' itself, or \ * individual elements. */ \ void \ name##_HT_CLEAR(struct name *head) \ { \ if (head->hth_table) \ freefn(head->hth_table); \ head->hth_table_length = 0; \ name##_HT_INIT(head); \ } \ /* Debugging helper: return false iff the representation of 'head' is \ * internally consistent. */ \ int \ _##name##_HT_REP_IS_BAD(const struct name *head) \ { \ unsigned n, i; \ struct type *elm; \ if (!head->hth_table_length) { \ if (!head->hth_table && !head->hth_n_entries && \ !head->hth_load_limit && head->hth_prime_idx == -1) \ return 0; \ else \ return 1; \ } \ if (!head->hth_table || head->hth_prime_idx < 0 || \ !head->hth_load_limit) \ return 2; \ if (head->hth_n_entries > head->hth_load_limit) \ return 3; \ if (head->hth_table_length != name##_PRIMES[head->hth_prime_idx]) \ return 4; \ if (head->hth_load_limit != (unsigned)(load*head->hth_table_length)) \ return 5; \ for (n = i = 0; i < head->hth_table_length; ++i) { \ for (elm = head->hth_table[i]; elm; elm = elm->field.hte_next) { \ if (_HT_ELT_HASH(elm, field, hashfn) != hashfn(elm)) \ return 1000 + i; \ if ((_HT_ELT_HASH(elm, field, hashfn) % head->hth_table_length) != i) \ return 10000 + i; \ ++n; \ } \ } \ if (n != head->hth_n_entries) \ return 6; \ return 0; \ } /** Implements an over-optimized "find and insert if absent" block; * not meant for direct usage by typical code, or usage outside the critical * path.*/ #define _HT_FIND_OR_INSERT(name, field, hashfn, head, eltype, elm, var, y, n) \ { \ struct name *_##var##_head = head; \ struct eltype **var; \ if (!_##var##_head->hth_table || \ _##var##_head->hth_n_entries >= _##var##_head->hth_load_limit) \ name##_HT_GROW(_##var##_head, _##var##_head->hth_n_entries+1); \ _HT_SET_HASH((elm), field, hashfn); \ var = _##name##_HT_FIND_P(_##var##_head, (elm)); \ if (*var) { \ y; \ } else { \ n; \ } \ } #define _HT_FOI_INSERT(field, head, elm, newent, var) \ { \ _HT_SET_HASHVAL(newent, field, (elm)->field.hte_hash); \ newent->field.hte_next = NULL; \ *var = newent; \ ++((head)->hth_n_entries); \ } /* * Copyright 2005, Nick Mathewson. Implementation logic is adapted from code * by Cristopher Clark, retrofit to allow drop-in memory management, and to * use the same interface as Niels Provos's tree.h. This is probably still * a derived work, so the original license below still applies. * * Copyright (c) 2002, Christopher Clark * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of the original author; nor the names of any contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #endif dnscrypt-proxy-1.9.4/src/libevent-modified/http-internal.h000644 000765 000024 00000012244 13037731714 023276 0ustar00jstaff000000 000000 /* * Copyright 2001-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * This header file contains definitions for dealing with HTTP requests * that are internal to libevent. As user of the library, you should not * need to know about these. */ #ifndef _HTTP_INTERNAL_H_ #define _HTTP_INTERNAL_H_ #include "event2/event_struct.h" #include "util-internal.h" #include "defer-internal.h" #define HTTP_CONNECT_TIMEOUT 45 #define HTTP_WRITE_TIMEOUT 50 #define HTTP_READ_TIMEOUT 50 #define HTTP_PREFIX "http://" #define HTTP_DEFAULTPORT 80 enum message_read_status { ALL_DATA_READ = 1, MORE_DATA_EXPECTED = 0, DATA_CORRUPTED = -1, REQUEST_CANCELED = -2, DATA_TOO_LONG = -3 }; enum evhttp_connection_error { EVCON_HTTP_TIMEOUT, EVCON_HTTP_EOF, EVCON_HTTP_INVALID_HEADER, EVCON_HTTP_BUFFER_ERROR, EVCON_HTTP_REQUEST_CANCEL }; struct evbuffer; struct addrinfo; struct evhttp_request; /* Indicates an unknown request method. */ #define _EVHTTP_REQ_UNKNOWN (1<<15) enum evhttp_connection_state { EVCON_DISCONNECTED, /**< not currently connected not trying either*/ EVCON_CONNECTING, /**< tries to currently connect */ EVCON_IDLE, /**< connection is established */ EVCON_READING_FIRSTLINE,/**< reading Request-Line (incoming conn) or **< Status-Line (outgoing conn) */ EVCON_READING_HEADERS, /**< reading request/response headers */ EVCON_READING_BODY, /**< reading request/response body */ EVCON_READING_TRAILER, /**< reading request/response chunked trailer */ EVCON_WRITING /**< writing request/response headers/body */ }; struct event_base; /* A client or server connection. */ struct evhttp_connection { /* we use this tailq only if this connection was created for an http * server */ TAILQ_ENTRY(evhttp_connection) next; evutil_socket_t fd; struct bufferevent *bufev; struct event retry_ev; /* for retrying connects */ char *bind_address; /* address to use for binding the src */ u_short bind_port; /* local port for binding the src */ char *address; /* address to connect to */ u_short port; size_t max_headers_size; ev_uint64_t max_body_size; int flags; #define EVHTTP_CON_INCOMING 0x0001 /* only one request on it ever */ #define EVHTTP_CON_OUTGOING 0x0002 /* multiple requests possible */ #define EVHTTP_CON_CLOSEDETECT 0x0004 /* detecting if persistent close */ int timeout; /* timeout in seconds for events */ int retry_cnt; /* retry count */ int retry_max; /* maximum number of retries */ enum evhttp_connection_state state; /* for server connections, the http server they are connected with */ struct evhttp *http_server; TAILQ_HEAD(evcon_requestq, evhttp_request) requests; void (*cb)(struct evhttp_connection *, void *); void *cb_arg; void (*closecb)(struct evhttp_connection *, void *); void *closecb_arg; struct deferred_cb read_more_deferred_cb; struct event_base *base; struct evdns_base *dns_base; }; /* A callback for an http server */ struct evhttp_cb { TAILQ_ENTRY(evhttp_cb) next; char *what; void (*cb)(struct evhttp_request *req, void *); void *cbarg; }; /* both the http server as well as the rpc system need to queue connections */ TAILQ_HEAD(evconq, evhttp_connection); /* each bound socket is stored in one of these */ struct evhttp_bound_socket { TAILQ_ENTRY(evhttp_bound_socket) next; struct evconnlistener *listener; }; /* server alias list item. */ struct evhttp_server_alias { TAILQ_ENTRY(evhttp_server_alias) next; char *alias; /* the server alias. */ }; struct evhttp { /* Next vhost, if this is a vhost. */ TAILQ_ENTRY(evhttp) next_vhost; /* All listeners for this host */ TAILQ_HEAD(boundq, evhttp_bound_socket) sockets; TAILQ_HEAD(httpcbq, evhttp_cb) callbacks; /* All live connections on this host. */ struct evconq connections; TAILQ_HEAD(vhostsq, evhttp) virtualhosts; TAILQ_HEAD(aliasq, evhttp_server_alias) aliases; /* NULL if this server is not a vhost */ char *vhost_pattern; int timeout; size_t default_max_headers_size; ev_uint64_t default_max_body_size; /* Bitmask of all HTTP methods that we accept and pass to user * callbacks. */ ev_uint16_t allowed_methods; /* Fallback callback if all the other callbacks for this connection don't match. */ void (*gencb)(struct evhttp_request *req, void *); void *gencbarg; struct event_base *base; }; /* XXX most of these functions could be static. */ /* resets the connection; can be reused for more requests */ void evhttp_connection_reset(struct evhttp_connection *); /* connects if necessary */ int evhttp_connection_connect(struct evhttp_connection *); /* notifies the current request that it failed; resets connection */ void evhttp_connection_fail(struct evhttp_connection *, enum evhttp_connection_error error); enum message_read_status; enum message_read_status evhttp_parse_firstline(struct evhttp_request *, struct evbuffer*); enum message_read_status evhttp_parse_headers(struct evhttp_request *, struct evbuffer*); void evhttp_start_read(struct evhttp_connection *); /* response sending HTML the data in the buffer */ void evhttp_response_code(struct evhttp_request *, int, const char *); void evhttp_send_page(struct evhttp_request *, struct evbuffer *); #endif /* _HTTP_H */ dnscrypt-proxy-1.9.4/src/libevent-modified/http.c000644 000765 000024 00000331610 13037731714 021460 0ustar00jstaff000000 000000 /* * Copyright (c) 2002-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef _EVENT_HAVE_SYS_PARAM_H #include #endif #ifdef _EVENT_HAVE_SYS_TYPES_H #include #endif #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #ifdef HAVE_SYS_IOCCOM_H #include #endif #ifndef WIN32 #include #include #include #include #else #include #include #endif #include #ifdef _EVENT_HAVE_NETINET_IN_H #include #endif #ifdef _EVENT_HAVE_ARPA_INET_H #include #endif #ifdef _EVENT_HAVE_NETDB_H #include #endif #ifdef WIN32 #include #endif #include #include #include #include #ifndef WIN32 #include #endif #include #include #ifdef _EVENT_HAVE_UNISTD_H #include #endif #ifdef _EVENT_HAVE_FCNTL_H #include #endif #undef timeout_pending #undef timeout_initialized #include "strlcpy-internal.h" #include "event2/http.h" #include "event2/event.h" #include "event2/buffer.h" #include "event2/bufferevent.h" #include "event2/bufferevent_compat.h" #include "event2/http_struct.h" #include "event2/http_compat.h" #include "event2/util.h" #include "event2/listener.h" #include "log-internal.h" #include "util-internal.h" #include "http-internal.h" #include "mm-internal.h" #include "bufferevent-internal.h" #ifndef _EVENT_HAVE_GETNAMEINFO #define NI_MAXSERV 32 #define NI_MAXHOST 1025 #ifndef NI_NUMERICHOST #define NI_NUMERICHOST 1 #endif #ifndef NI_NUMERICSERV #define NI_NUMERICSERV 2 #endif static int fake_getnameinfo(const struct sockaddr *sa, size_t salen, char *host, size_t hostlen, char *serv, size_t servlen, int flags) { struct sockaddr_in *sin = (struct sockaddr_in *)sa; if (serv != NULL) { char tmpserv[16]; evutil_snprintf(tmpserv, sizeof(tmpserv), "%d", ntohs(sin->sin_port)); if (strlcpy(serv, tmpserv, servlen) >= servlen) return (-1); } if (host != NULL) { if (flags & NI_NUMERICHOST) { if (strlcpy(host, inet_ntoa(sin->sin_addr), hostlen) >= hostlen) return (-1); else return (0); } else { struct hostent *hp; hp = gethostbyaddr((char *)&sin->sin_addr, sizeof(struct in_addr), AF_INET); if (hp == NULL) return (-2); if (strlcpy(host, hp->h_name, hostlen) >= hostlen) return (-1); else return (0); } } return (0); } #endif #define REQ_VERSION_BEFORE(req, major_v, minor_v) \ ((req)->major < (major_v) || \ ((req)->major == (major_v) && (req)->minor < (minor_v))) #define REQ_VERSION_ATLEAST(req, major_v, minor_v) \ ((req)->major > (major_v) || \ ((req)->major == (major_v) && (req)->minor >= (minor_v))) #ifndef MIN #define MIN(a,b) (((a)<(b))?(a):(b)) #endif extern int debug; static evutil_socket_t bind_socket_ai(struct evutil_addrinfo *, int reuse); static evutil_socket_t bind_socket(const char *, ev_uint16_t, int reuse); static void name_from_addr(struct sockaddr *, ev_socklen_t, char **, char **); static int evhttp_associate_new_request_with_connection( struct evhttp_connection *evcon); static void evhttp_connection_start_detectclose( struct evhttp_connection *evcon); static void evhttp_connection_stop_detectclose( struct evhttp_connection *evcon); static void evhttp_request_dispatch(struct evhttp_connection* evcon); static void evhttp_read_firstline(struct evhttp_connection *evcon, struct evhttp_request *req); static void evhttp_read_header(struct evhttp_connection *evcon, struct evhttp_request *req); static int evhttp_add_header_internal(struct evkeyvalq *headers, const char *key, const char *value); static const char *evhttp_response_phrase_internal(int code); static void evhttp_get_request(struct evhttp *, evutil_socket_t, struct sockaddr *, ev_socklen_t); static void evhttp_write_buffer(struct evhttp_connection *, void (*)(struct evhttp_connection *, void *), void *); static void evhttp_make_header(struct evhttp_connection *, struct evhttp_request *); /* callbacks for bufferevent */ static void evhttp_read_cb(struct bufferevent *, void *); static void evhttp_write_cb(struct bufferevent *, void *); static void evhttp_error_cb(struct bufferevent *bufev, short what, void *arg); static int evhttp_decode_uri_internal(const char *uri, size_t length, char *ret, int decode_plus); static int evhttp_find_vhost(struct evhttp *http, struct evhttp **outhttp, const char *hostname); #ifndef _EVENT_HAVE_STRSEP /* strsep replacement for platforms that lack it. Only works if * del is one character long. */ static char * strsep(char **s, const char *del) { char *d, *tok; EVUTIL_ASSERT(strlen(del) == 1); if (!s || !*s) return NULL; tok = *s; d = strstr(tok, del); if (d) { *d = '\0'; *s = d + 1; } else *s = NULL; return tok; } #endif static size_t html_replace(const char ch, const char **escaped) { switch (ch) { case '<': *escaped = "<"; return 4; case '>': *escaped = ">"; return 4; case '"': *escaped = """; return 6; case '\'': *escaped = "'"; return 6; case '&': *escaped = "&"; return 5; default: break; } return 1; } /* * Replaces <, >, ", ' and & with <, >, ", * ' and & correspondingly. * * The returned string needs to be freed by the caller. */ char * evhttp_htmlescape(const char *html) { size_t i; size_t new_size = 0, old_size = 0; char *escaped_html, *p; if (html == NULL) return (NULL); old_size = strlen(html); for (i = 0; i < old_size; ++i) { const char *replaced = NULL; const size_t replace_size = html_replace(html[i], &replaced); if (replace_size > EV_SIZE_MAX - new_size) { event_warn("%s: html_replace overflow", __func__); return (NULL); } new_size += replace_size; } if (new_size == EV_SIZE_MAX) return (NULL); p = escaped_html = mm_malloc(new_size + 1); if (escaped_html == NULL) { event_warn("%s: malloc(%lu)", __func__, (unsigned long)(new_size + 1)); return (NULL); } for (i = 0; i < old_size; ++i) { const char *replaced = &html[i]; const size_t len = html_replace(html[i], &replaced); memcpy(p, replaced, len); p += len; } *p = '\0'; return (escaped_html); } /** Given an evhttp_cmd_type, returns a constant string containing the * equivalent HTTP command, or NULL if the evhttp_command_type is * unrecognized. */ static const char * evhttp_method(enum evhttp_cmd_type type) { const char *method; switch (type) { case EVHTTP_REQ_GET: method = "GET"; break; case EVHTTP_REQ_POST: method = "POST"; break; case EVHTTP_REQ_HEAD: method = "HEAD"; break; case EVHTTP_REQ_PUT: method = "PUT"; break; case EVHTTP_REQ_DELETE: method = "DELETE"; break; case EVHTTP_REQ_OPTIONS: method = "OPTIONS"; break; case EVHTTP_REQ_TRACE: method = "TRACE"; break; case EVHTTP_REQ_CONNECT: method = "CONNECT"; break; case EVHTTP_REQ_PATCH: method = "PATCH"; break; default: method = NULL; break; } return (method); } /** * Determines if a response should have a body. * Follows the rules in RFC 2616 section 4.3. * @return 1 if the response MUST have a body; 0 if the response MUST NOT have * a body. */ static int evhttp_response_needs_body(struct evhttp_request *req) { return (req->response_code != HTTP_NOCONTENT && req->response_code != HTTP_NOTMODIFIED && (req->response_code < 100 || req->response_code >= 200) && req->type != EVHTTP_REQ_HEAD); } /** Helper: adds the event 'ev' with the timeout 'timeout', or with * default_timeout if timeout is -1. */ static int evhttp_add_event(struct event *ev, int timeout, int default_timeout) { if (timeout != 0) { struct timeval tv; evutil_timerclear(&tv); tv.tv_sec = timeout != -1 ? timeout : default_timeout; return event_add(ev, &tv); } else { return event_add(ev, NULL); } } /** Helper: called after we've added some data to an evcon's bufferevent's * output buffer. Sets the evconn's writing-is-done callback, and puts * the bufferevent into writing mode. */ static void evhttp_write_buffer(struct evhttp_connection *evcon, void (*cb)(struct evhttp_connection *, void *), void *arg) { event_debug(("%s: preparing to write buffer\n", __func__)); /* Set call back */ evcon->cb = cb; evcon->cb_arg = arg; /* Disable the read callback: we don't actually care about data; * we only care about close detection. (We don't disable reading, * since we *do* want to learn about any close events.) */ bufferevent_setcb(evcon->bufev, NULL, /*read*/ evhttp_write_cb, evhttp_error_cb, evcon); bufferevent_enable(evcon->bufev, EV_WRITE); } static void evhttp_send_continue_done(struct evhttp_connection *evcon, void *arg) { bufferevent_disable(evcon->bufev, EV_WRITE); } static void evhttp_send_continue(struct evhttp_connection *evcon, struct evhttp_request *req) { bufferevent_enable(evcon->bufev, EV_WRITE); evbuffer_add_printf(bufferevent_get_output(evcon->bufev), "HTTP/%d.%d 100 Continue\r\n\r\n", req->major, req->minor); evcon->cb = evhttp_send_continue_done; evcon->cb_arg = NULL; bufferevent_setcb(evcon->bufev, evhttp_read_cb, evhttp_write_cb, evhttp_error_cb, evcon); } /** Helper: returns true iff evconn is in any connected state. */ static int evhttp_connected(struct evhttp_connection *evcon) { switch (evcon->state) { case EVCON_DISCONNECTED: case EVCON_CONNECTING: return (0); case EVCON_IDLE: case EVCON_READING_FIRSTLINE: case EVCON_READING_HEADERS: case EVCON_READING_BODY: case EVCON_READING_TRAILER: case EVCON_WRITING: default: return (1); } } /* Create the headers needed for an outgoing HTTP request, adds them to * the request's header list, and writes the request line to the * connection's output buffer. */ static void evhttp_make_header_request(struct evhttp_connection *evcon, struct evhttp_request *req) { const char *method; evhttp_remove_header(req->output_headers, "Proxy-Connection"); /* Generate request line */ method = evhttp_method(req->type); evbuffer_add_printf(bufferevent_get_output(evcon->bufev), "%s %s HTTP/%d.%d\r\n", method, req->uri, req->major, req->minor); /* Add the content length on a post or put request if missing */ if ((req->type == EVHTTP_REQ_POST || req->type == EVHTTP_REQ_PUT) && evhttp_find_header(req->output_headers, "Content-Length") == NULL){ char size[22]; evutil_snprintf(size, sizeof(size), EV_SIZE_FMT, EV_SIZE_ARG(evbuffer_get_length(req->output_buffer))); evhttp_add_header(req->output_headers, "Content-Length", size); } } /** Return true if the list of headers in 'headers', intepreted with respect * to flags, means that we should send a "connection: close" when the request * is done. */ static int evhttp_is_connection_close(int flags, struct evkeyvalq* headers) { if (flags & EVHTTP_PROXY_REQUEST) { /* proxy connection */ const char *connection = evhttp_find_header(headers, "Proxy-Connection"); return (connection == NULL || evutil_ascii_strcasecmp(connection, "keep-alive") != 0); } else { const char *connection = evhttp_find_header(headers, "Connection"); return (connection != NULL && evutil_ascii_strcasecmp(connection, "close") == 0); } } /* Return true iff 'headers' contains 'Connection: keep-alive' */ static int evhttp_is_connection_keepalive(struct evkeyvalq* headers) { const char *connection = evhttp_find_header(headers, "Connection"); return (connection != NULL && evutil_ascii_strncasecmp(connection, "keep-alive", 10) == 0); } /* Add a correct "Date" header to headers, unless it already has one. */ static void evhttp_maybe_add_date_header(struct evkeyvalq *headers) { if (evhttp_find_header(headers, "Date") == NULL) { char date[50]; #ifndef WIN32 struct tm cur; #endif struct tm *cur_p; time_t t = time(NULL); #ifdef WIN32 cur_p = gmtime(&t); #else gmtime_r(&t, &cur); cur_p = &cur; #endif if (strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S GMT", cur_p) != 0) { evhttp_add_header(headers, "Date", date); } } } /* Add a "Content-Length" header with value 'content_length' to headers, * unless it already has a content-length or transfer-encoding header. */ static void evhttp_maybe_add_content_length_header(struct evkeyvalq *headers, size_t content_length) { if (evhttp_find_header(headers, "Transfer-Encoding") == NULL && evhttp_find_header(headers, "Content-Length") == NULL) { char len[22]; evutil_snprintf(len, sizeof(len), EV_SIZE_FMT, EV_SIZE_ARG(content_length)); evhttp_add_header(headers, "Content-Length", len); } } /* * Create the headers needed for an HTTP reply in req->output_headers, * and write the first HTTP response for req line to evcon. */ static void evhttp_make_header_response(struct evhttp_connection *evcon, struct evhttp_request *req) { int is_keepalive = evhttp_is_connection_keepalive(req->input_headers); evbuffer_add_printf(bufferevent_get_output(evcon->bufev), "HTTP/%d.%d %d %s\r\n", req->major, req->minor, req->response_code, req->response_code_line); if (req->major == 1) { if (req->minor >= 1) evhttp_maybe_add_date_header(req->output_headers); /* * if the protocol is 1.0; and the connection was keep-alive * we need to add a keep-alive header, too. */ if (req->minor == 0 && is_keepalive) evhttp_add_header(req->output_headers, "Connection", "keep-alive"); if ((req->minor >= 1 || is_keepalive) && evhttp_response_needs_body(req)) { /* * we need to add the content length if the * user did not give it, this is required for * persistent connections to work. */ evhttp_maybe_add_content_length_header( req->output_headers, evbuffer_get_length(req->output_buffer)); } } /* Potentially add headers for unidentified content. */ if (evhttp_response_needs_body(req)) { if (evhttp_find_header(req->output_headers, "Content-Type") == NULL) { evhttp_add_header(req->output_headers, "Content-Type", "text/html; charset=ISO-8859-1"); } } /* if the request asked for a close, we send a close, too */ if (evhttp_is_connection_close(req->flags, req->input_headers)) { evhttp_remove_header(req->output_headers, "Connection"); if (!(req->flags & EVHTTP_PROXY_REQUEST)) evhttp_add_header(req->output_headers, "Connection", "close"); evhttp_remove_header(req->output_headers, "Proxy-Connection"); } } /** Generate all headers appropriate for sending the http request in req (or * the response, if we're sending a response), and write them to evcon's * bufferevent. Also writes all data from req->output_buffer */ static void evhttp_make_header(struct evhttp_connection *evcon, struct evhttp_request *req) { struct evkeyval *header; struct evbuffer *output = bufferevent_get_output(evcon->bufev); /* * Depending if this is a HTTP request or response, we might need to * add some new headers or remove existing headers. */ if (req->kind == EVHTTP_REQUEST) { evhttp_make_header_request(evcon, req); } else { evhttp_make_header_response(evcon, req); } TAILQ_FOREACH(header, req->output_headers, next) { evbuffer_add_printf(output, "%s: %s\r\n", header->key, header->value); } evbuffer_add(output, "\r\n", 2); if (evbuffer_get_length(req->output_buffer) > 0) { /* * For a request, we add the POST data, for a reply, this * is the regular data. */ /* XXX We might want to support waiting (a limited amount of time) for a continue status line from the server before sending POST/PUT message bodies. */ evbuffer_add_buffer(output, req->output_buffer); } } void evhttp_connection_set_max_headers_size(struct evhttp_connection *evcon, ev_ssize_t new_max_headers_size) { if (new_max_headers_size<0) evcon->max_headers_size = EV_SIZE_MAX; else evcon->max_headers_size = new_max_headers_size; } void evhttp_connection_set_max_body_size(struct evhttp_connection* evcon, ev_ssize_t new_max_body_size) { if (new_max_body_size<0) evcon->max_body_size = EV_UINT64_MAX; else evcon->max_body_size = new_max_body_size; } static int evhttp_connection_incoming_fail(struct evhttp_request *req, enum evhttp_connection_error error) { switch (error) { case EVCON_HTTP_TIMEOUT: case EVCON_HTTP_EOF: /* * these are cases in which we probably should just * close the connection and not send a reply. this * case may happen when a browser keeps a persistent * connection open and we timeout on the read. when * the request is still being used for sending, we * need to disassociated it from the connection here. */ if (!req->userdone) { /* remove it so that it will not be freed */ TAILQ_REMOVE(&req->evcon->requests, req, next); /* indicate that this request no longer has a * connection object */ req->evcon = NULL; } return (-1); case EVCON_HTTP_INVALID_HEADER: case EVCON_HTTP_BUFFER_ERROR: case EVCON_HTTP_REQUEST_CANCEL: default: /* xxx: probably should just error on default */ /* the callback looks at the uri to determine errors */ if (req->uri) { mm_free(req->uri); req->uri = NULL; } if (req->uri_elems) { evhttp_uri_free(req->uri_elems); req->uri_elems = NULL; } /* * the callback needs to send a reply, once the reply has * been send, the connection should get freed. */ (*req->cb)(req, req->cb_arg); } return (0); } /* Called when evcon has experienced a (non-recoverable? -NM) error, as * given in error. If it's an outgoing connection, reset the connection, * retry any pending requests, and inform the user. If it's incoming, * delegates to evhttp_connection_incoming_fail(). */ void evhttp_connection_fail(struct evhttp_connection *evcon, enum evhttp_connection_error error) { struct evhttp_request* req = TAILQ_FIRST(&evcon->requests); void (*cb)(struct evhttp_request *, void *); void *cb_arg; EVUTIL_ASSERT(req != NULL); bufferevent_disable(evcon->bufev, EV_READ|EV_WRITE); if (evcon->flags & EVHTTP_CON_INCOMING) { /* * for incoming requests, there are two different * failure cases. it's either a network level error * or an http layer error. for problems on the network * layer like timeouts we just drop the connections. * For HTTP problems, we might have to send back a * reply before the connection can be freed. */ if (evhttp_connection_incoming_fail(req, error) == -1) evhttp_connection_free(evcon); return; } /* when the request was canceled, the callback is not executed */ if (error != EVCON_HTTP_REQUEST_CANCEL) { /* save the callback for later; the cb might free our object */ cb = req->cb; cb_arg = req->cb_arg; } else { cb = NULL; cb_arg = NULL; } /* do not fail all requests; the next request is going to get * send over a new connection. when a user cancels a request, * all other pending requests should be processed as normal */ TAILQ_REMOVE(&evcon->requests, req, next); evhttp_request_free(req); /* reset the connection */ evhttp_connection_reset(evcon); /* We are trying the next request that was queued on us */ if (TAILQ_FIRST(&evcon->requests) != NULL) evhttp_connection_connect(evcon); /* inform the user */ if (cb != NULL) (*cb)(NULL, cb_arg); } /* Bufferevent callback: invoked when any data has been written from an * http connection's bufferevent */ static void evhttp_write_cb(struct bufferevent *bufev, void *arg) { struct evhttp_connection *evcon = arg; /* Activate our call back */ if (evcon->cb != NULL) (*evcon->cb)(evcon, evcon->cb_arg); } /** * Advance the connection state. * - If this is an outgoing connection, we've just processed the response; * idle or close the connection. * - If this is an incoming connection, we've just processed the request; * respond. */ static void evhttp_connection_done(struct evhttp_connection *evcon) { struct evhttp_request *req = TAILQ_FIRST(&evcon->requests); int con_outgoing = evcon->flags & EVHTTP_CON_OUTGOING; if (con_outgoing) { /* idle or close the connection */ int need_close; TAILQ_REMOVE(&evcon->requests, req, next); req->evcon = NULL; evcon->state = EVCON_IDLE; need_close = evhttp_is_connection_close(req->flags, req->input_headers)|| evhttp_is_connection_close(req->flags, req->output_headers); /* check if we got asked to close the connection */ if (need_close) evhttp_connection_reset(evcon); if (TAILQ_FIRST(&evcon->requests) != NULL) { /* * We have more requests; reset the connection * and deal with the next request. */ if (!evhttp_connected(evcon)) evhttp_connection_connect(evcon); else evhttp_request_dispatch(evcon); } else if (!need_close) { /* * The connection is going to be persistent, but we * need to detect if the other side closes it. */ evhttp_connection_start_detectclose(evcon); } } else { /* * incoming connection - we need to leave the request on the * connection so that we can reply to it. */ evcon->state = EVCON_WRITING; } /* notify the user of the request */ (*req->cb)(req, req->cb_arg); /* if this was an outgoing request, we own and it's done. so free it. * unless the callback specifically requested to own the request. */ if (con_outgoing && ((req->flags & EVHTTP_USER_OWNED) == 0)) { evhttp_request_free(req); } } /* * Handles reading from a chunked request. * return ALL_DATA_READ: * all data has been read * return MORE_DATA_EXPECTED: * more data is expected * return DATA_CORRUPTED: * data is corrupted * return REQUEST_CANCELED: * request was canceled by the user calling evhttp_cancel_request * return DATA_TOO_LONG: * ran over the maximum limit */ static enum message_read_status evhttp_handle_chunked_read(struct evhttp_request *req, struct evbuffer *buf) { if (req == NULL || buf == NULL) { return DATA_CORRUPTED; } while (1) { size_t buflen; if ((buflen = evbuffer_get_length(buf)) == 0) { break; } /* evbuffer_get_length returns size_t, but len variable is ssize_t, * check for overflow conditions */ if (buflen > EV_SSIZE_MAX) { return DATA_CORRUPTED; } if (req->ntoread < 0) { /* Read chunk size */ ev_int64_t ntoread; char *p = evbuffer_readln(buf, NULL, EVBUFFER_EOL_CRLF); char *endp; int error; if (p == NULL) break; /* the last chunk is on a new line? */ if (strlen(p) == 0) { mm_free(p); continue; } ntoread = evutil_strtoll(p, &endp, 16); error = (*p == '\0' || (*endp != '\0' && *endp != ' ') || ntoread < 0); mm_free(p); if (error) { /* could not get chunk size */ return (DATA_CORRUPTED); } /* ntoread is signed int64, body_size is unsigned size_t, check for under/overflow conditions */ if ((ev_uint64_t)ntoread > EV_SIZE_MAX - req->body_size) { return DATA_CORRUPTED; } if (req->body_size + (size_t)ntoread > req->evcon->max_body_size) { /* failed body length test */ event_debug(("Request body is too long")); return (DATA_TOO_LONG); } req->body_size += (size_t)ntoread; req->ntoread = ntoread; if (req->ntoread == 0) { /* Last chunk */ return (ALL_DATA_READ); } continue; } /* req->ntoread is signed int64, len is ssize_t, based on arch, * ssize_t could only be 32b, check for these conditions */ if (req->ntoread > EV_SSIZE_MAX) { return DATA_CORRUPTED; } /* don't have enough to complete a chunk; wait for more */ if (req->ntoread > 0 && buflen < (ev_uint64_t)req->ntoread) return (MORE_DATA_EXPECTED); /* Completed chunk */ evbuffer_remove_buffer(buf, req->input_buffer, (size_t)req->ntoread); req->ntoread = -1; if (req->chunk_cb != NULL) { req->flags |= EVHTTP_REQ_DEFER_FREE; (*req->chunk_cb)(req, req->cb_arg); evbuffer_drain(req->input_buffer, evbuffer_get_length(req->input_buffer)); req->flags &= ~EVHTTP_REQ_DEFER_FREE; if ((req->flags & EVHTTP_REQ_NEEDS_FREE) != 0) { return (REQUEST_CANCELED); } } } return (MORE_DATA_EXPECTED); } static void evhttp_read_trailer(struct evhttp_connection *evcon, struct evhttp_request *req) { struct evbuffer *buf = bufferevent_get_input(evcon->bufev); switch (evhttp_parse_headers(req, buf)) { case DATA_CORRUPTED: case DATA_TOO_LONG: evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); break; case ALL_DATA_READ: bufferevent_disable(evcon->bufev, EV_READ); evhttp_connection_done(evcon); break; case MORE_DATA_EXPECTED: case REQUEST_CANCELED: /* ??? */ default: bufferevent_enable(evcon->bufev, EV_READ); break; } } static void evhttp_read_body(struct evhttp_connection *evcon, struct evhttp_request *req) { struct evbuffer *buf = bufferevent_get_input(evcon->bufev); if (req->chunked) { switch (evhttp_handle_chunked_read(req, buf)) { case ALL_DATA_READ: /* finished last chunk */ evcon->state = EVCON_READING_TRAILER; evhttp_read_trailer(evcon, req); return; case DATA_CORRUPTED: case DATA_TOO_LONG:/*separate error for this? XXX */ /* corrupted data */ evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); return; case REQUEST_CANCELED: /* request canceled */ evhttp_request_free(req); return; case MORE_DATA_EXPECTED: default: break; } } else if (req->ntoread < 0) { /* Read until connection close. */ if ((size_t)(req->body_size + evbuffer_get_length(buf)) < req->body_size) { evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); return; } req->body_size += evbuffer_get_length(buf); evbuffer_add_buffer(req->input_buffer, buf); } else if (req->chunk_cb != NULL || evbuffer_get_length(buf) >= (size_t)req->ntoread) { /* XXX: the above get_length comparison has to be fixed for overflow conditions! */ /* We've postponed moving the data until now, but we're * about to use it. */ size_t n = evbuffer_get_length(buf); if (n > (size_t) req->ntoread) n = (size_t) req->ntoread; req->ntoread -= n; req->body_size += n; evbuffer_remove_buffer(buf, req->input_buffer, n); } if (req->body_size > req->evcon->max_body_size || (!req->chunked && req->ntoread >= 0 && (size_t)req->ntoread > req->evcon->max_body_size)) { /* XXX: The above casted comparison must checked for overflow */ /* failed body length test */ event_debug(("Request body is too long")); evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); return; } if (evbuffer_get_length(req->input_buffer) > 0 && req->chunk_cb != NULL) { req->flags |= EVHTTP_REQ_DEFER_FREE; (*req->chunk_cb)(req, req->cb_arg); req->flags &= ~EVHTTP_REQ_DEFER_FREE; evbuffer_drain(req->input_buffer, evbuffer_get_length(req->input_buffer)); if ((req->flags & EVHTTP_REQ_NEEDS_FREE) != 0) { evhttp_request_free(req); return; } } if (req->ntoread == 0) { bufferevent_disable(evcon->bufev, EV_READ); /* Completed content length */ evhttp_connection_done(evcon); return; } /* Read more! */ bufferevent_enable(evcon->bufev, EV_READ); } #define get_deferred_queue(evcon) \ (event_base_get_deferred_cb_queue((evcon)->base)) /* * Gets called when more data becomes available */ static void evhttp_read_cb(struct bufferevent *bufev, void *arg) { struct evhttp_connection *evcon = arg; struct evhttp_request *req = TAILQ_FIRST(&evcon->requests); /* Cancel if it's pending. */ event_deferred_cb_cancel(get_deferred_queue(evcon), &evcon->read_more_deferred_cb); switch (evcon->state) { case EVCON_READING_FIRSTLINE: evhttp_read_firstline(evcon, req); /* note the request may have been freed in * evhttp_read_body */ break; case EVCON_READING_HEADERS: evhttp_read_header(evcon, req); /* note the request may have been freed in * evhttp_read_body */ break; case EVCON_READING_BODY: evhttp_read_body(evcon, req); /* note the request may have been freed in * evhttp_read_body */ break; case EVCON_READING_TRAILER: evhttp_read_trailer(evcon, req); break; case EVCON_IDLE: { #ifdef USE_DEBUG struct evbuffer *input; size_t total_len; input = bufferevent_get_input(evcon->bufev); total_len = evbuffer_get_length(input); event_debug(("%s: read "EV_SIZE_FMT " bytes in EVCON_IDLE state," " resetting connection", __func__, EV_SIZE_ARG(total_len))); #endif evhttp_connection_reset(evcon); } break; case EVCON_DISCONNECTED: case EVCON_CONNECTING: case EVCON_WRITING: default: event_errx(1, "%s: illegal connection state %d", __func__, evcon->state); } } static void evhttp_deferred_read_cb(struct deferred_cb *cb, void *data) { struct evhttp_connection *evcon = data; evhttp_read_cb(evcon->bufev, evcon); } static void evhttp_write_connectioncb(struct evhttp_connection *evcon, void *arg) { /* This is after writing the request to the server */ struct evhttp_request *req = TAILQ_FIRST(&evcon->requests); EVUTIL_ASSERT(req != NULL); EVUTIL_ASSERT(evcon->state == EVCON_WRITING); /* We are done writing our header and are now expecting the response */ req->kind = EVHTTP_RESPONSE; evhttp_start_read(evcon); } /* * Clean up a connection object */ void evhttp_connection_free(struct evhttp_connection *evcon) { struct evhttp_request *req; /* notify interested parties that this connection is going down */ if (evcon->fd != -1) { if (evhttp_connected(evcon) && evcon->closecb != NULL) (*evcon->closecb)(evcon, evcon->closecb_arg); } /* remove all requests that might be queued on this * connection. for server connections, this should be empty. * because it gets dequeued either in evhttp_connection_done or * evhttp_connection_fail. */ while ((req = TAILQ_FIRST(&evcon->requests)) != NULL) { TAILQ_REMOVE(&evcon->requests, req, next); evhttp_request_free(req); } if (evcon->http_server != NULL) { struct evhttp *http = evcon->http_server; TAILQ_REMOVE(&http->connections, evcon, next); } if (event_initialized(&evcon->retry_ev)) { event_del(&evcon->retry_ev); event_debug_unassign(&evcon->retry_ev); } if (evcon->bufev != NULL) bufferevent_free(evcon->bufev); event_deferred_cb_cancel(get_deferred_queue(evcon), &evcon->read_more_deferred_cb); if (evcon->fd != -1) { shutdown(evcon->fd, EVUTIL_SHUT_WR); evutil_closesocket(evcon->fd); } if (evcon->bind_address != NULL) mm_free(evcon->bind_address); if (evcon->address != NULL) mm_free(evcon->address); mm_free(evcon); } void evhttp_connection_set_local_address(struct evhttp_connection *evcon, const char *address) { EVUTIL_ASSERT(evcon->state == EVCON_DISCONNECTED); if (evcon->bind_address) mm_free(evcon->bind_address); if ((evcon->bind_address = mm_strdup(address)) == NULL) event_warn("%s: strdup", __func__); } void evhttp_connection_set_local_port(struct evhttp_connection *evcon, ev_uint16_t port) { EVUTIL_ASSERT(evcon->state == EVCON_DISCONNECTED); evcon->bind_port = port; } static void evhttp_request_dispatch(struct evhttp_connection* evcon) { struct evhttp_request *req = TAILQ_FIRST(&evcon->requests); /* this should not usually happy but it's possible */ if (req == NULL) return; /* delete possible close detection events */ evhttp_connection_stop_detectclose(evcon); /* we assume that the connection is connected already */ EVUTIL_ASSERT(evcon->state == EVCON_IDLE); evcon->state = EVCON_WRITING; /* Create the header from the store arguments */ evhttp_make_header(evcon, req); evhttp_write_buffer(evcon, evhttp_write_connectioncb, NULL); } /* Reset our connection state: disables reading/writing, closes our fd (if * any), clears out buffers, and puts us in state DISCONNECTED. */ void evhttp_connection_reset(struct evhttp_connection *evcon) { struct evbuffer *tmp; /* XXXX This is not actually an optimal fix. Instead we ought to have an API for "stop connecting", or use bufferevent_setfd to turn off connecting. But for Libevent 2.0, this seems like a minimal change least likely to disrupt the rest of the bufferevent and http code. Why is this here? If the fd is set in the bufferevent, and the bufferevent is connecting, then you can't actually stop the bufferevent from trying to connect with bufferevent_disable(). The connect will never trigger, since we close the fd, but the timeout might. That caused an assertion failure in evhttp_connection_fail. */ bufferevent_disable_hard(evcon->bufev, EV_READ|EV_WRITE); if (evcon->fd != -1) { /* inform interested parties about connection close */ if (evhttp_connected(evcon) && evcon->closecb != NULL) (*evcon->closecb)(evcon, evcon->closecb_arg); shutdown(evcon->fd, EVUTIL_SHUT_WR); evutil_closesocket(evcon->fd); evcon->fd = -1; } /* we need to clean up any buffered data */ tmp = bufferevent_get_output(evcon->bufev); evbuffer_drain(tmp, evbuffer_get_length(tmp)); tmp = bufferevent_get_input(evcon->bufev); evbuffer_drain(tmp, evbuffer_get_length(tmp)); evcon->state = EVCON_DISCONNECTED; } static void evhttp_connection_start_detectclose(struct evhttp_connection *evcon) { evcon->flags |= EVHTTP_CON_CLOSEDETECT; bufferevent_enable(evcon->bufev, EV_READ); } static void evhttp_connection_stop_detectclose(struct evhttp_connection *evcon) { evcon->flags &= ~EVHTTP_CON_CLOSEDETECT; bufferevent_disable(evcon->bufev, EV_READ); } static void evhttp_connection_retry(evutil_socket_t fd, short what, void *arg) { struct evhttp_connection *evcon = arg; evcon->state = EVCON_DISCONNECTED; evhttp_connection_connect(evcon); } static void evhttp_connection_cb_cleanup(struct evhttp_connection *evcon) { struct evcon_requestq requests; if (evcon->retry_max < 0 || evcon->retry_cnt < evcon->retry_max) { evtimer_assign(&evcon->retry_ev, evcon->base, evhttp_connection_retry, evcon); /* XXXX handle failure from evhttp_add_event */ evhttp_add_event(&evcon->retry_ev, MIN(3600, 2 << evcon->retry_cnt), HTTP_CONNECT_TIMEOUT); evcon->retry_cnt++; return; } evhttp_connection_reset(evcon); /* * User callback can do evhttp_make_request() on the same * evcon so new request will be added to evcon->requests. To * avoid freeing it prematurely we iterate over the copy of * the queue. */ TAILQ_INIT(&requests); while (TAILQ_FIRST(&evcon->requests) != NULL) { struct evhttp_request *request = TAILQ_FIRST(&evcon->requests); TAILQ_REMOVE(&evcon->requests, request, next); TAILQ_INSERT_TAIL(&requests, request, next); } /* for now, we just signal all requests by executing their callbacks */ while (TAILQ_FIRST(&requests) != NULL) { struct evhttp_request *request = TAILQ_FIRST(&requests); TAILQ_REMOVE(&requests, request, next); request->evcon = NULL; /* we might want to set an error here */ request->cb(request, request->cb_arg); evhttp_request_free(request); } } static void evhttp_error_cb(struct bufferevent *bufev, short what, void *arg) { struct evhttp_connection *evcon = arg; struct evhttp_request *req = TAILQ_FIRST(&evcon->requests); if (evcon->fd == -1) evcon->fd = bufferevent_getfd(bufev); switch (evcon->state) { case EVCON_CONNECTING: if (what & BEV_EVENT_TIMEOUT) { event_debug(("%s: connection timeout for \"%s:%d\" on " EV_SOCK_FMT, __func__, evcon->address, evcon->port, EV_SOCK_ARG(evcon->fd))); evhttp_connection_cb_cleanup(evcon); return; } break; case EVCON_READING_BODY: if (!req->chunked && req->ntoread < 0 && what == (BEV_EVENT_READING|BEV_EVENT_EOF)) { /* EOF on read can be benign */ evhttp_connection_done(evcon); return; } break; case EVCON_DISCONNECTED: case EVCON_IDLE: case EVCON_READING_FIRSTLINE: case EVCON_READING_HEADERS: case EVCON_READING_TRAILER: case EVCON_WRITING: default: break; } /* when we are in close detect mode, a read error means that * the other side closed their connection. */ if (evcon->flags & EVHTTP_CON_CLOSEDETECT) { evcon->flags &= ~EVHTTP_CON_CLOSEDETECT; EVUTIL_ASSERT(evcon->http_server == NULL); /* For connections from the client, we just * reset the connection so that it becomes * disconnected. */ EVUTIL_ASSERT(evcon->state == EVCON_IDLE); evhttp_connection_reset(evcon); return; } if (what & BEV_EVENT_TIMEOUT) { evhttp_connection_fail(evcon, EVCON_HTTP_TIMEOUT); } else if (what & (BEV_EVENT_EOF|BEV_EVENT_ERROR)) { evhttp_connection_fail(evcon, EVCON_HTTP_EOF); } else { evhttp_connection_fail(evcon, EVCON_HTTP_BUFFER_ERROR); } } /* * Event callback for asynchronous connection attempt. */ static void evhttp_connection_cb(struct bufferevent *bufev, short what, void *arg) { struct evhttp_connection *evcon = arg; int error; ev_socklen_t errsz = sizeof(error); if (evcon->fd == -1) evcon->fd = bufferevent_getfd(bufev); if (!(what & BEV_EVENT_CONNECTED)) { /* some operating systems return ECONNREFUSED immediately * when connecting to a local address. the cleanup is going * to reschedule this function call. */ #ifndef WIN32 if (errno == ECONNREFUSED) goto cleanup; #endif evhttp_error_cb(bufev, what, arg); return; } /* Check if the connection completed */ if (getsockopt(evcon->fd, SOL_SOCKET, SO_ERROR, (void*)&error, &errsz) == -1) { event_debug(("%s: getsockopt for \"%s:%d\" on "EV_SOCK_FMT, __func__, evcon->address, evcon->port, EV_SOCK_ARG(evcon->fd))); goto cleanup; } if (error) { event_debug(("%s: connect failed for \"%s:%d\" on " EV_SOCK_FMT": %s", __func__, evcon->address, evcon->port, EV_SOCK_ARG(evcon->fd), evutil_socket_error_to_string(error))); goto cleanup; } /* We are connected to the server now */ event_debug(("%s: connected to \"%s:%d\" on "EV_SOCK_FMT"\n", __func__, evcon->address, evcon->port, EV_SOCK_ARG(evcon->fd))); /* Reset the retry count as we were successful in connecting */ evcon->retry_cnt = 0; evcon->state = EVCON_IDLE; /* reset the bufferevent cbs */ bufferevent_setcb(evcon->bufev, evhttp_read_cb, evhttp_write_cb, evhttp_error_cb, evcon); if (evcon->timeout == -1) bufferevent_settimeout(evcon->bufev, HTTP_READ_TIMEOUT, HTTP_WRITE_TIMEOUT); else { struct timeval tv; tv.tv_sec = evcon->timeout; tv.tv_usec = 0; bufferevent_set_timeouts(evcon->bufev, &tv, &tv); } /* try to start requests that have queued up on this connection */ evhttp_request_dispatch(evcon); return; cleanup: evhttp_connection_cb_cleanup(evcon); } /* * Check if we got a valid response code. */ static int evhttp_valid_response_code(int code) { if (code == 0) return (0); return (1); } static int evhttp_parse_http_version(const char *version, struct evhttp_request *req) { int major, minor; char ch; int n = sscanf(version, "HTTP/%d.%d%c", &major, &minor, &ch); if (n != 2 || major > 1) { event_debug(("%s: bad version %s on message %p from %s", __func__, version, req, req->remote_host)); return (-1); } req->major = major; req->minor = minor; return (0); } /* Parses the status line of a web server */ static int evhttp_parse_response_line(struct evhttp_request *req, char *line) { char *protocol; char *number; const char *readable = ""; protocol = strsep(&line, " "); if (line == NULL) return (-1); number = strsep(&line, " "); if (line != NULL) readable = line; if (evhttp_parse_http_version(protocol, req) < 0) return (-1); req->response_code = atoi(number); if (!evhttp_valid_response_code(req->response_code)) { event_debug(("%s: bad response code \"%s\"", __func__, number)); return (-1); } if ((req->response_code_line = mm_strdup(readable)) == NULL) { event_warn("%s: strdup", __func__); return (-1); } return (0); } /* Parse the first line of a HTTP request */ static int evhttp_parse_request_line(struct evhttp_request *req, char *line) { char *method; char *uri; char *version; const char *hostname; const char *scheme; /* Parse the request line */ method = strsep(&line, " "); if (line == NULL) return (-1); uri = strsep(&line, " "); if (line == NULL) return (-1); version = strsep(&line, " "); if (line != NULL) return (-1); /* First line */ if (strcmp(method, "GET") == 0) { req->type = EVHTTP_REQ_GET; } else if (strcmp(method, "POST") == 0) { req->type = EVHTTP_REQ_POST; } else if (strcmp(method, "HEAD") == 0) { req->type = EVHTTP_REQ_HEAD; } else if (strcmp(method, "PUT") == 0) { req->type = EVHTTP_REQ_PUT; } else if (strcmp(method, "DELETE") == 0) { req->type = EVHTTP_REQ_DELETE; } else if (strcmp(method, "OPTIONS") == 0) { req->type = EVHTTP_REQ_OPTIONS; } else if (strcmp(method, "TRACE") == 0) { req->type = EVHTTP_REQ_TRACE; } else if (strcmp(method, "PATCH") == 0) { req->type = EVHTTP_REQ_PATCH; } else { req->type = _EVHTTP_REQ_UNKNOWN; event_debug(("%s: bad method %s on request %p from %s", __func__, method, req, req->remote_host)); /* No error yet; we'll give a better error later when * we see that req->type is unsupported. */ } if (evhttp_parse_http_version(version, req) < 0) return (-1); if ((req->uri = mm_strdup(uri)) == NULL) { event_debug(("%s: mm_strdup", __func__)); return (-1); } if ((req->uri_elems = evhttp_uri_parse_with_flags(req->uri, EVHTTP_URI_NONCONFORMANT)) == NULL) { return -1; } /* If we have an absolute-URI, check to see if it is an http request for a known vhost or server alias. If we don't know about this host, we consider it a proxy request. */ scheme = evhttp_uri_get_scheme(req->uri_elems); hostname = evhttp_uri_get_host(req->uri_elems); if (scheme && (!evutil_ascii_strcasecmp(scheme, "http") || !evutil_ascii_strcasecmp(scheme, "https")) && hostname && !evhttp_find_vhost(req->evcon->http_server, NULL, hostname)) req->flags |= EVHTTP_PROXY_REQUEST; return (0); } const char * evhttp_find_header(const struct evkeyvalq *headers, const char *key) { struct evkeyval *header; TAILQ_FOREACH(header, headers, next) { if (evutil_ascii_strcasecmp(header->key, key) == 0) return (header->value); } return (NULL); } void evhttp_clear_headers(struct evkeyvalq *headers) { struct evkeyval *header; for (header = TAILQ_FIRST(headers); header != NULL; header = TAILQ_FIRST(headers)) { TAILQ_REMOVE(headers, header, next); mm_free(header->key); mm_free(header->value); mm_free(header); } } /* * Returns 0, if the header was successfully removed. * Returns -1, if the header could not be found. */ int evhttp_remove_header(struct evkeyvalq *headers, const char *key) { struct evkeyval *header; TAILQ_FOREACH(header, headers, next) { if (evutil_ascii_strcasecmp(header->key, key) == 0) break; } if (header == NULL) return (-1); /* Free and remove the header that we found */ TAILQ_REMOVE(headers, header, next); mm_free(header->key); mm_free(header->value); mm_free(header); return (0); } static int evhttp_header_is_valid_value(const char *value) { const char *p = value; while ((p = strpbrk(p, "\r\n")) != NULL) { /* we really expect only one new line */ p += strspn(p, "\r\n"); /* we expect a space or tab for continuation */ if (*p != ' ' && *p != '\t') return (0); } return (1); } int evhttp_add_header(struct evkeyvalq *headers, const char *key, const char *value) { event_debug(("%s: key: %s val: %s\n", __func__, key, value)); if (strchr(key, '\r') != NULL || strchr(key, '\n') != NULL) { /* drop illegal headers */ event_debug(("%s: dropping illegal header key\n", __func__)); return (-1); } if (!evhttp_header_is_valid_value(value)) { event_debug(("%s: dropping illegal header value\n", __func__)); return (-1); } return (evhttp_add_header_internal(headers, key, value)); } static int evhttp_add_header_internal(struct evkeyvalq *headers, const char *key, const char *value) { struct evkeyval *header = mm_calloc(1, sizeof(struct evkeyval)); if (header == NULL) { event_warn("%s: calloc", __func__); return (-1); } if ((header->key = mm_strdup(key)) == NULL) { mm_free(header); event_warn("%s: strdup", __func__); return (-1); } if ((header->value = mm_strdup(value)) == NULL) { mm_free(header->key); mm_free(header); event_warn("%s: strdup", __func__); return (-1); } TAILQ_INSERT_TAIL(headers, header, next); return (0); } /* * Parses header lines from a request or a response into the specified * request object given an event buffer. * * Returns * DATA_CORRUPTED on error * MORE_DATA_EXPECTED when we need to read more headers * ALL_DATA_READ when all headers have been read. */ enum message_read_status evhttp_parse_firstline(struct evhttp_request *req, struct evbuffer *buffer) { char *line; enum message_read_status status = ALL_DATA_READ; size_t line_length; /* XXX try */ line = evbuffer_readln(buffer, &line_length, EVBUFFER_EOL_CRLF); if (line == NULL) { if (req->evcon != NULL && evbuffer_get_length(buffer) > req->evcon->max_headers_size) return (DATA_TOO_LONG); else return (MORE_DATA_EXPECTED); } if (req->evcon != NULL && line_length > req->evcon->max_headers_size) { mm_free(line); return (DATA_TOO_LONG); } req->headers_size = line_length; switch (req->kind) { case EVHTTP_REQUEST: if (evhttp_parse_request_line(req, line) == -1) status = DATA_CORRUPTED; break; case EVHTTP_RESPONSE: if (evhttp_parse_response_line(req, line) == -1) status = DATA_CORRUPTED; break; default: status = DATA_CORRUPTED; } mm_free(line); return (status); } static int evhttp_append_to_last_header(struct evkeyvalq *headers, const char *line) { struct evkeyval *header = TAILQ_LAST(headers, evkeyvalq); char *newval; size_t old_len, line_len; if (header == NULL) return (-1); old_len = strlen(header->value); line_len = strlen(line); newval = mm_realloc(header->value, old_len + line_len + 1); if (newval == NULL) return (-1); memcpy(newval + old_len, line, line_len + 1); header->value = newval; return (0); } enum message_read_status evhttp_parse_headers(struct evhttp_request *req, struct evbuffer* buffer) { enum message_read_status errcode = DATA_CORRUPTED; char *line; enum message_read_status status = MORE_DATA_EXPECTED; struct evkeyvalq* headers = req->input_headers; size_t line_length; while ((line = evbuffer_readln(buffer, &line_length, EVBUFFER_EOL_CRLF)) != NULL) { char *skey, *svalue; req->headers_size += line_length; if (req->evcon != NULL && req->headers_size > req->evcon->max_headers_size) { errcode = DATA_TOO_LONG; goto error; } if (*line == '\0') { /* Last header - Done */ status = ALL_DATA_READ; mm_free(line); break; } /* Check if this is a continuation line */ if (*line == ' ' || *line == '\t') { if (evhttp_append_to_last_header(headers, line) == -1) goto error; mm_free(line); continue; } /* Processing of header lines */ svalue = line; skey = strsep(&svalue, ":"); if (svalue == NULL) goto error; svalue += strspn(svalue, " "); if (evhttp_add_header(headers, skey, svalue) == -1) goto error; mm_free(line); } if (status == MORE_DATA_EXPECTED) { if (req->evcon != NULL && req->headers_size + evbuffer_get_length(buffer) > req->evcon->max_headers_size) return (DATA_TOO_LONG); } return (status); error: mm_free(line); return (errcode); } static int evhttp_get_body_length(struct evhttp_request *req) { struct evkeyvalq *headers = req->input_headers; const char *content_length; const char *connection; content_length = evhttp_find_header(headers, "Content-Length"); connection = evhttp_find_header(headers, "Connection"); if (content_length == NULL && connection == NULL) req->ntoread = -1; else if (content_length == NULL && evutil_ascii_strcasecmp(connection, "Close") != 0) { /* Bad combination, we don't know when it will end */ event_warnx("%s: we got no content length, but the " "server wants to keep the connection open: %s.", __func__, connection); return (-1); } else if (content_length == NULL) { req->ntoread = -1; } else { char *endp; ev_int64_t ntoread = evutil_strtoll(content_length, &endp, 10); if (*content_length == '\0' || *endp != '\0' || ntoread < 0) { event_debug(("%s: illegal content length: %s", __func__, content_length)); return (-1); } req->ntoread = ntoread; } event_debug(("%s: bytes to read: "EV_I64_FMT" (in buffer "EV_SIZE_FMT")\n", __func__, EV_I64_ARG(req->ntoread), EV_SIZE_ARG(evbuffer_get_length(bufferevent_get_input(req->evcon->bufev))))); return (0); } static int evhttp_method_may_have_body(enum evhttp_cmd_type type) { switch (type) { case EVHTTP_REQ_POST: case EVHTTP_REQ_PUT: case EVHTTP_REQ_PATCH: return 1; case EVHTTP_REQ_TRACE: return 0; /* XXX May any of the below methods have a body? */ case EVHTTP_REQ_GET: case EVHTTP_REQ_HEAD: case EVHTTP_REQ_DELETE: case EVHTTP_REQ_OPTIONS: case EVHTTP_REQ_CONNECT: return 0; default: return 0; } } static void evhttp_get_body(struct evhttp_connection *evcon, struct evhttp_request *req) { const char *xfer_enc; /* If this is a request without a body, then we are done */ if (req->kind == EVHTTP_REQUEST && !evhttp_method_may_have_body(req->type)) { evhttp_connection_done(evcon); return; } evcon->state = EVCON_READING_BODY; xfer_enc = evhttp_find_header(req->input_headers, "Transfer-Encoding"); if (xfer_enc != NULL && evutil_ascii_strcasecmp(xfer_enc, "chunked") == 0) { req->chunked = 1; req->ntoread = -1; } else { if (evhttp_get_body_length(req) == -1) { evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); return; } if (req->kind == EVHTTP_REQUEST && req->ntoread < 1) { /* An incoming request with no content-length and no * transfer-encoding has no body. */ evhttp_connection_done(evcon); return; } } /* Should we send a 100 Continue status line? */ if (req->kind == EVHTTP_REQUEST && REQ_VERSION_ATLEAST(req, 1, 1)) { const char *expect; expect = evhttp_find_header(req->input_headers, "Expect"); if (expect) { if (!evutil_ascii_strcasecmp(expect, "100-continue")) { /* XXX It would be nice to do some sanity checking here. Does the resource exist? Should the resource accept post requests? If no, we should respond with an error. For now, just optimistically tell the client to send their message body. */ if (req->ntoread > 0) { /* ntoread is ev_int64_t, max_body_size is ev_uint64_t */ if ((req->evcon->max_body_size <= EV_INT64_MAX) && (ev_uint64_t)req->ntoread > req->evcon->max_body_size) { evhttp_send_error(req, HTTP_ENTITYTOOLARGE, NULL); return; } } if (!evbuffer_get_length(bufferevent_get_input(evcon->bufev))) evhttp_send_continue(evcon, req); } else { evhttp_send_error(req, HTTP_EXPECTATIONFAILED, NULL); return; } } } evhttp_read_body(evcon, req); /* note the request may have been freed in evhttp_read_body */ } static void evhttp_read_firstline(struct evhttp_connection *evcon, struct evhttp_request *req) { enum message_read_status res; res = evhttp_parse_firstline(req, bufferevent_get_input(evcon->bufev)); if (res == DATA_CORRUPTED || res == DATA_TOO_LONG) { /* Error while reading, terminate */ event_debug(("%s: bad header lines on "EV_SOCK_FMT"\n", __func__, EV_SOCK_ARG(evcon->fd))); evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); return; } else if (res == MORE_DATA_EXPECTED) { /* Need more header lines */ return; } evcon->state = EVCON_READING_HEADERS; evhttp_read_header(evcon, req); } static void evhttp_read_header(struct evhttp_connection *evcon, struct evhttp_request *req) { enum message_read_status res; evutil_socket_t fd = evcon->fd; res = evhttp_parse_headers(req, bufferevent_get_input(evcon->bufev)); if (res == DATA_CORRUPTED || res == DATA_TOO_LONG) { /* Error while reading, terminate */ event_debug(("%s: bad header lines on "EV_SOCK_FMT"\n", __func__, EV_SOCK_ARG(fd))); evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); return; } else if (res == MORE_DATA_EXPECTED) { /* Need more header lines */ return; } /* Disable reading for now */ bufferevent_disable(evcon->bufev, EV_READ); /* Done reading headers, do the real work */ switch (req->kind) { case EVHTTP_REQUEST: event_debug(("%s: checking for post data on "EV_SOCK_FMT"\n", __func__, EV_SOCK_ARG(fd))); evhttp_get_body(evcon, req); /* note the request may have been freed in evhttp_get_body */ break; case EVHTTP_RESPONSE: /* Start over if we got a 100 Continue response. */ if (req->response_code == 100) { evhttp_start_read(evcon); return; } if (!evhttp_response_needs_body(req)) { event_debug(("%s: skipping body for code %d\n", __func__, req->response_code)); evhttp_connection_done(evcon); } else { event_debug(("%s: start of read body for %s on " EV_SOCK_FMT"\n", __func__, req->remote_host, EV_SOCK_ARG(fd))); evhttp_get_body(evcon, req); /* note the request may have been freed in * evhttp_get_body */ } break; default: event_warnx("%s: bad header on "EV_SOCK_FMT, __func__, EV_SOCK_ARG(fd)); evhttp_connection_fail(evcon, EVCON_HTTP_INVALID_HEADER); break; } /* request may have been freed above */ } /* * Creates a TCP connection to the specified port and executes a callback * when finished. Failure or success is indicate by the passed connection * object. * * Although this interface accepts a hostname, it is intended to take * only numeric hostnames so that non-blocking DNS resolution can * happen elsewhere. */ struct evhttp_connection * evhttp_connection_new(const char *address, unsigned short port) { return (evhttp_connection_base_new(NULL, NULL, address, port)); } struct evhttp_connection * evhttp_connection_base_new(struct event_base *base, struct evdns_base *dnsbase, const char *address, unsigned short port) { struct evhttp_connection *evcon = NULL; event_debug(("Attempting connection to %s:%d\n", address, port)); if ((evcon = mm_calloc(1, sizeof(struct evhttp_connection))) == NULL) { event_warn("%s: calloc failed", __func__); goto error; } evcon->fd = -1; evcon->port = port; evcon->max_headers_size = EV_SIZE_MAX; evcon->max_body_size = EV_SIZE_MAX; evcon->timeout = -1; evcon->retry_cnt = evcon->retry_max = 0; if ((evcon->address = mm_strdup(address)) == NULL) { event_warn("%s: strdup failed", __func__); goto error; } if ((evcon->bufev = bufferevent_new(-1, evhttp_read_cb, evhttp_write_cb, evhttp_error_cb, evcon)) == NULL) { event_warn("%s: bufferevent_new failed", __func__); goto error; } evcon->state = EVCON_DISCONNECTED; TAILQ_INIT(&evcon->requests); if (base != NULL) { evcon->base = base; bufferevent_base_set(base, evcon->bufev); } event_deferred_cb_init(&evcon->read_more_deferred_cb, evhttp_deferred_read_cb, evcon); evcon->dns_base = dnsbase; return (evcon); error: if (evcon != NULL) evhttp_connection_free(evcon); return (NULL); } struct bufferevent * evhttp_connection_get_bufferevent(struct evhttp_connection *evcon) { return evcon->bufev; } void evhttp_connection_set_base(struct evhttp_connection *evcon, struct event_base *base) { EVUTIL_ASSERT(evcon->base == NULL); EVUTIL_ASSERT(evcon->state == EVCON_DISCONNECTED); evcon->base = base; bufferevent_base_set(base, evcon->bufev); } void evhttp_connection_set_timeout(struct evhttp_connection *evcon, int timeout_in_secs) { evcon->timeout = timeout_in_secs; if (evcon->timeout == -1) bufferevent_settimeout(evcon->bufev, HTTP_READ_TIMEOUT, HTTP_WRITE_TIMEOUT); else bufferevent_settimeout(evcon->bufev, evcon->timeout, evcon->timeout); } void evhttp_connection_set_retries(struct evhttp_connection *evcon, int retry_max) { evcon->retry_max = retry_max; } void evhttp_connection_set_closecb(struct evhttp_connection *evcon, void (*cb)(struct evhttp_connection *, void *), void *cbarg) { evcon->closecb = cb; evcon->closecb_arg = cbarg; } void evhttp_connection_get_peer(struct evhttp_connection *evcon, char **address, ev_uint16_t *port) { *address = evcon->address; *port = evcon->port; } int evhttp_connection_connect(struct evhttp_connection *evcon) { int old_state = evcon->state; if (evcon->state == EVCON_CONNECTING) return (0); evhttp_connection_reset(evcon); EVUTIL_ASSERT(!(evcon->flags & EVHTTP_CON_INCOMING)); evcon->flags |= EVHTTP_CON_OUTGOING; if (evcon->bind_address || evcon->bind_port) { evcon->fd = bind_socket( evcon->bind_address, evcon->bind_port, 0 /*reuse*/); if (evcon->fd == -1) { event_debug(("%s: failed to bind to \"%s\"", __func__, evcon->bind_address)); return (-1); } bufferevent_setfd(evcon->bufev, evcon->fd); } else { bufferevent_setfd(evcon->bufev, -1); } /* Set up a callback for successful connection setup */ bufferevent_setcb(evcon->bufev, NULL /* evhttp_read_cb */, NULL /* evhttp_write_cb */, evhttp_connection_cb, evcon); bufferevent_settimeout(evcon->bufev, 0, evcon->timeout != -1 ? evcon->timeout : HTTP_CONNECT_TIMEOUT); /* make sure that we get a write callback */ bufferevent_enable(evcon->bufev, EV_WRITE); evcon->state = EVCON_CONNECTING; if (bufferevent_socket_connect_hostname(evcon->bufev, evcon->dns_base, AF_UNSPEC, evcon->address, evcon->port) < 0) { evcon->state = old_state; event_sock_warn(evcon->fd, "%s: connection to \"%s\" failed", __func__, evcon->address); /* some operating systems return ECONNREFUSED immediately * when connecting to a local address. the cleanup is going * to reschedule this function call. */ evhttp_connection_cb_cleanup(evcon); return (0); } return (0); } /* * Starts an HTTP request on the provided evhttp_connection object. * If the connection object is not connected to the web server already, * this will start the connection. */ int evhttp_make_request(struct evhttp_connection *evcon, struct evhttp_request *req, enum evhttp_cmd_type type, const char *uri) { /* We are making a request */ req->kind = EVHTTP_REQUEST; req->type = type; if (req->uri != NULL) mm_free(req->uri); if ((req->uri = mm_strdup(uri)) == NULL) { event_warn("%s: strdup", __func__); evhttp_request_free(req); return (-1); } /* Set the protocol version if it is not supplied */ if (!req->major && !req->minor) { req->major = 1; req->minor = 1; } EVUTIL_ASSERT(req->evcon == NULL); req->evcon = evcon; EVUTIL_ASSERT(!(req->flags & EVHTTP_REQ_OWN_CONNECTION)); TAILQ_INSERT_TAIL(&evcon->requests, req, next); /* If the connection object is not connected; make it so */ if (!evhttp_connected(evcon)) { int res = evhttp_connection_connect(evcon); /* evhttp_connection_fail(), which is called through * evhttp_connection_connect(), assumes that req lies in * evcon->requests. Thus, enqueue the request in advance and r * it in the error case. */ if (res != 0) TAILQ_REMOVE(&evcon->requests, req, next); return res; } /* * If it's connected already and we are the first in the queue, * then we can dispatch this request immediately. Otherwise, it * will be dispatched once the pending requests are completed. */ if (TAILQ_FIRST(&evcon->requests) == req) evhttp_request_dispatch(evcon); return (0); } void evhttp_cancel_request(struct evhttp_request *req) { struct evhttp_connection *evcon = req->evcon; if (evcon != NULL) { /* We need to remove it from the connection */ if (TAILQ_FIRST(&evcon->requests) == req) { /* it's currently being worked on, so reset * the connection. */ evhttp_connection_fail(evcon, EVCON_HTTP_REQUEST_CANCEL); /* connection fail freed the request */ return; } else { /* otherwise, we can just remove it from the * queue */ TAILQ_REMOVE(&evcon->requests, req, next); } } evhttp_request_free(req); } /* * Reads data from file descriptor into request structure * Request structure needs to be set up correctly. */ void evhttp_start_read(struct evhttp_connection *evcon) { /* Set up an event to read the headers */ bufferevent_disable(evcon->bufev, EV_WRITE); bufferevent_enable(evcon->bufev, EV_READ); evcon->state = EVCON_READING_FIRSTLINE; /* Reset the bufferevent callbacks */ bufferevent_setcb(evcon->bufev, evhttp_read_cb, evhttp_write_cb, evhttp_error_cb, evcon); /* If there's still data pending, process it next time through the * loop. Don't do it now; that could get recusive. */ if (evbuffer_get_length(bufferevent_get_input(evcon->bufev))) { event_deferred_cb_schedule(get_deferred_queue(evcon), &evcon->read_more_deferred_cb); } } static void evhttp_send_done(struct evhttp_connection *evcon, void *arg) { int need_close; struct evhttp_request *req = TAILQ_FIRST(&evcon->requests); TAILQ_REMOVE(&evcon->requests, req, next); need_close = (REQ_VERSION_BEFORE(req, 1, 1) && !evhttp_is_connection_keepalive(req->input_headers))|| evhttp_is_connection_close(req->flags, req->input_headers) || evhttp_is_connection_close(req->flags, req->output_headers); EVUTIL_ASSERT(req->flags & EVHTTP_REQ_OWN_CONNECTION); evhttp_request_free(req); if (need_close) { evhttp_connection_free(evcon); return; } /* we have a persistent connection; try to accept another request. */ if (evhttp_associate_new_request_with_connection(evcon) == -1) { evhttp_connection_free(evcon); } } /* * Returns an error page. */ void evhttp_send_error(struct evhttp_request *req, int error, const char *reason) { #define ERR_FORMAT "\n" \ "%d %s\n" \ "\n" \ "

%s

\n" \ "\n" struct evbuffer *buf = evbuffer_new(); if (buf == NULL) { /* if we cannot allocate memory; we just drop the connection */ evhttp_connection_free(req->evcon); return; } if (reason == NULL) { reason = evhttp_response_phrase_internal(error); } evhttp_response_code(req, error, reason); evbuffer_add_printf(buf, ERR_FORMAT, error, reason, reason); evhttp_send_page(req, buf); evbuffer_free(buf); #undef ERR_FORMAT } /* Requires that headers and response code are already set up */ static inline void evhttp_send(struct evhttp_request *req, struct evbuffer *databuf) { struct evhttp_connection *evcon = req->evcon; if (evcon == NULL) { evhttp_request_free(req); return; } EVUTIL_ASSERT(TAILQ_FIRST(&evcon->requests) == req); /* we expect no more calls form the user on this request */ req->userdone = 1; /* xxx: not sure if we really should expose the data buffer this way */ if (databuf != NULL) evbuffer_add_buffer(req->output_buffer, databuf); /* Adds headers to the response */ evhttp_make_header(evcon, req); evhttp_write_buffer(evcon, evhttp_send_done, NULL); } void evhttp_send_reply(struct evhttp_request *req, int code, const char *reason, struct evbuffer *databuf) { evhttp_response_code(req, code, reason); evhttp_send(req, databuf); } void evhttp_send_reply_start(struct evhttp_request *req, int code, const char *reason) { evhttp_response_code(req, code, reason); if (evhttp_find_header(req->output_headers, "Content-Length") == NULL && REQ_VERSION_ATLEAST(req, 1, 1) && evhttp_response_needs_body(req)) { /* * prefer HTTP/1.1 chunked encoding to closing the connection; * note RFC 2616 section 4.4 forbids it with Content-Length: * and it's not necessary then anyway. */ evhttp_add_header(req->output_headers, "Transfer-Encoding", "chunked"); req->chunked = 1; } else { req->chunked = 0; } evhttp_make_header(req->evcon, req); evhttp_write_buffer(req->evcon, NULL, NULL); } void evhttp_send_reply_chunk(struct evhttp_request *req, struct evbuffer *databuf) { struct evhttp_connection *evcon = req->evcon; struct evbuffer *output; if (evcon == NULL) return; output = bufferevent_get_output(evcon->bufev); if (evbuffer_get_length(databuf) == 0) return; if (!evhttp_response_needs_body(req)) return; if (req->chunked) { evbuffer_add_printf(output, "%x\r\n", (unsigned)evbuffer_get_length(databuf)); } evbuffer_add_buffer(output, databuf); if (req->chunked) { evbuffer_add(output, "\r\n", 2); } evhttp_write_buffer(evcon, NULL, NULL); } void evhttp_send_reply_end(struct evhttp_request *req) { struct evhttp_connection *evcon = req->evcon; struct evbuffer *output; if (evcon == NULL) { evhttp_request_free(req); return; } output = bufferevent_get_output(evcon->bufev); /* we expect no more calls form the user on this request */ req->userdone = 1; if (req->chunked) { evbuffer_add(output, "0\r\n\r\n", 5); evhttp_write_buffer(req->evcon, evhttp_send_done, NULL); req->chunked = 0; } else if (evbuffer_get_length(output) == 0) { /* let the connection know that we are done with the request */ evhttp_send_done(evcon, NULL); } else { /* make the callback execute after all data has been written */ evcon->cb = evhttp_send_done; evcon->cb_arg = NULL; } } static const char *informational_phrases[] = { /* 100 */ "Continue", /* 101 */ "Switching Protocols" }; static const char *success_phrases[] = { /* 200 */ "OK", /* 201 */ "Created", /* 202 */ "Accepted", /* 203 */ "Non-Authoritative Information", /* 204 */ "No Content", /* 205 */ "Reset Content", /* 206 */ "Partial Content" }; static const char *redirection_phrases[] = { /* 300 */ "Multiple Choices", /* 301 */ "Moved Permanently", /* 302 */ "Found", /* 303 */ "See Other", /* 304 */ "Not Modified", /* 305 */ "Use Proxy", /* 307 */ "Temporary Redirect" }; static const char *client_error_phrases[] = { /* 400 */ "Bad Request", /* 401 */ "Unauthorized", /* 402 */ "Payment Required", /* 403 */ "Forbidden", /* 404 */ "Not Found", /* 405 */ "Method Not Allowed", /* 406 */ "Not Acceptable", /* 407 */ "Proxy Authentication Required", /* 408 */ "Request Time-out", /* 409 */ "Conflict", /* 410 */ "Gone", /* 411 */ "Length Required", /* 412 */ "Precondition Failed", /* 413 */ "Request Entity Too Large", /* 414 */ "Request-URI Too Large", /* 415 */ "Unsupported Media Type", /* 416 */ "Requested range not satisfiable", /* 417 */ "Expectation Failed" }; static const char *server_error_phrases[] = { /* 500 */ "Internal Server Error", /* 501 */ "Not Implemented", /* 502 */ "Bad Gateway", /* 503 */ "Service Unavailable", /* 504 */ "Gateway Time-out", /* 505 */ "HTTP Version not supported" }; struct response_class { const char *name; size_t num_responses; const char **responses; }; #ifndef MEMBERSOF #define MEMBERSOF(x) (sizeof(x)/sizeof(x[0])) #endif static const struct response_class response_classes[] = { /* 1xx */ { "Informational", MEMBERSOF(informational_phrases), informational_phrases }, /* 2xx */ { "Success", MEMBERSOF(success_phrases), success_phrases }, /* 3xx */ { "Redirection", MEMBERSOF(redirection_phrases), redirection_phrases }, /* 4xx */ { "Client Error", MEMBERSOF(client_error_phrases), client_error_phrases }, /* 5xx */ { "Server Error", MEMBERSOF(server_error_phrases), server_error_phrases } }; static const char * evhttp_response_phrase_internal(int code) { int klass = code / 100 - 1; int subcode = code % 100; /* Unknown class - can't do any better here */ if (klass < 0 || klass >= (int) MEMBERSOF(response_classes)) return "Unknown Status Class"; /* Unknown sub-code, return class name at least */ if (subcode >= (int) response_classes[klass].num_responses) return response_classes[klass].name; return response_classes[klass].responses[subcode]; } void evhttp_response_code(struct evhttp_request *req, int code, const char *reason) { req->kind = EVHTTP_RESPONSE; req->response_code = code; if (req->response_code_line != NULL) mm_free(req->response_code_line); if (reason == NULL) reason = evhttp_response_phrase_internal(code); req->response_code_line = mm_strdup(reason); if (req->response_code_line == NULL) { event_warn("%s: strdup", __func__); /* XXX what else can we do? */ } } void evhttp_send_page(struct evhttp_request *req, struct evbuffer *databuf) { if (!req->major || !req->minor) { req->major = 1; req->minor = 1; } if (req->kind != EVHTTP_RESPONSE) evhttp_response_code(req, 200, "OK"); evhttp_clear_headers(req->output_headers); evhttp_add_header(req->output_headers, "Content-Type", "text/html"); evhttp_add_header(req->output_headers, "Connection", "close"); evhttp_send(req, databuf); } static const char uri_chars[256] = { /* 0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 64 */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, /* 128 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 192 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; #define CHAR_IS_UNRESERVED(c) \ (uri_chars[(unsigned char)(c)]) /* * Helper functions to encode/decode a string for inclusion in a URI. * The returned string must be freed by the caller. */ char * evhttp_uriencode(const char *uri, ev_ssize_t len, int space_as_plus) { struct evbuffer *buf = evbuffer_new(); const char *p, *end; char *result; if (buf == NULL) return (NULL); if (len >= 0) end = uri+len; else end = uri+strlen(uri); for (p = uri; p < end; p++) { if (CHAR_IS_UNRESERVED(*p)) { evbuffer_add(buf, p, 1); } else if (*p == ' ' && space_as_plus) { evbuffer_add(buf, "+", 1); } else { evbuffer_add_printf(buf, "%%%02X", (unsigned char)(*p)); } } evbuffer_add(buf, "", 1); /* NUL-terminator. */ result = mm_malloc(evbuffer_get_length(buf)); if (result) evbuffer_remove(buf, result, evbuffer_get_length(buf)); evbuffer_free(buf); return (result); } char * evhttp_encode_uri(const char *str) { return evhttp_uriencode(str, -1, 0); } /* * @param decode_plus_ctl: if 1, we decode plus into space. If 0, we don't. * If -1, when true we transform plus to space only after we've seen * a ?. -1 is deprecated. * @return the number of bytes written to 'ret'. */ static int evhttp_decode_uri_internal( const char *uri, size_t length, char *ret, int decode_plus_ctl) { char c; int j; int decode_plus = (decode_plus_ctl == 1) ? 1: 0; unsigned i; for (i = j = 0; i < length; i++) { c = uri[i]; if (c == '?') { if (decode_plus_ctl < 0) decode_plus = 1; } else if (c == '+' && decode_plus) { c = ' '; } else if (c == '%' && EVUTIL_ISXDIGIT(uri[i+1]) && EVUTIL_ISXDIGIT(uri[i+2])) { char tmp[3]; tmp[0] = uri[i+1]; tmp[1] = uri[i+2]; tmp[2] = '\0'; c = (char)strtol(tmp, NULL, 16); i += 2; } ret[j++] = c; } ret[j] = '\0'; return (j); } /* deprecated */ char * evhttp_decode_uri(const char *uri) { char *ret; if ((ret = mm_malloc(strlen(uri) + 1)) == NULL) { event_warn("%s: malloc(%lu)", __func__, (unsigned long)(strlen(uri) + 1)); return (NULL); } evhttp_decode_uri_internal(uri, strlen(uri), ret, -1 /*always_decode_plus*/); return (ret); } char * evhttp_uridecode(const char *uri, int decode_plus, size_t *size_out) { char *ret; int n; if ((ret = mm_malloc(strlen(uri) + 1)) == NULL) { event_warn("%s: malloc(%lu)", __func__, (unsigned long)(strlen(uri) + 1)); return (NULL); } n = evhttp_decode_uri_internal(uri, strlen(uri), ret, !!decode_plus/*always_decode_plus*/); if (size_out) { EVUTIL_ASSERT(n >= 0); *size_out = (size_t)n; } return (ret); } /* * Helper function to parse out arguments in a query. * The arguments are separated by key and value. */ static int evhttp_parse_query_impl(const char *str, struct evkeyvalq *headers, int is_whole_uri) { char *line=NULL; char *argument; char *p; const char *query_part; int result = -1; struct evhttp_uri *uri=NULL; TAILQ_INIT(headers); if (is_whole_uri) { uri = evhttp_uri_parse(str); if (!uri) goto error; query_part = evhttp_uri_get_query(uri); } else { query_part = str; } /* No arguments - we are done */ if (!query_part || !strlen(query_part)) { result = 0; goto done; } if ((line = mm_strdup(query_part)) == NULL) { event_warn("%s: strdup", __func__); goto error; } p = argument = line; while (p != NULL && *p != '\0') { char *key, *value, *decoded_value; argument = strsep(&p, "&"); value = argument; key = strsep(&value, "="); if (value == NULL || *key == '\0') { goto error; } if ((decoded_value = mm_malloc(strlen(value) + 1)) == NULL) { event_warn("%s: mm_malloc", __func__); goto error; } evhttp_decode_uri_internal(value, strlen(value), decoded_value, 1 /*always_decode_plus*/); event_debug(("Query Param: %s -> %s\n", key, decoded_value)); evhttp_add_header_internal(headers, key, decoded_value); mm_free(decoded_value); } result = 0; goto done; error: evhttp_clear_headers(headers); done: if (line) mm_free(line); if (uri) evhttp_uri_free(uri); return result; } int evhttp_parse_query(const char *uri, struct evkeyvalq *headers) { return evhttp_parse_query_impl(uri, headers, 1); } int evhttp_parse_query_str(const char *uri, struct evkeyvalq *headers) { return evhttp_parse_query_impl(uri, headers, 0); } static struct evhttp_cb * evhttp_dispatch_callback(struct httpcbq *callbacks, struct evhttp_request *req) { struct evhttp_cb *cb; size_t offset = 0; char *translated; const char *path; /* Test for different URLs */ path = evhttp_uri_get_path(req->uri_elems); offset = strlen(path); if ((translated = mm_malloc(offset + 1)) == NULL) return (NULL); evhttp_decode_uri_internal(path, offset, translated, 0 /* decode_plus */); TAILQ_FOREACH(cb, callbacks, next) { if (!strcmp(cb->what, translated)) { mm_free(translated); return (cb); } } mm_free(translated); return (NULL); } static int prefix_suffix_match(const char *pattern, const char *name, int ignorecase) { char c; while (1) { switch (c = *pattern++) { case '\0': return *name == '\0'; case '*': while (*name != '\0') { if (prefix_suffix_match(pattern, name, ignorecase)) return (1); ++name; } return (0); default: if (c != *name) { if (!ignorecase || EVUTIL_TOLOWER(c) != EVUTIL_TOLOWER(*name)) return (0); } ++name; } } /* NOTREACHED */ } /* Search the vhost hierarchy beginning with http for a server alias matching hostname. If a match is found, and outhttp is non-null, outhttp is set to the matching http object and 1 is returned. */ static int evhttp_find_alias(struct evhttp *http, struct evhttp **outhttp, const char *hostname) { struct evhttp_server_alias *alias; struct evhttp *vhost; TAILQ_FOREACH(alias, &http->aliases, next) { /* XXX Do we need to handle IP addresses? */ if (!evutil_ascii_strcasecmp(alias->alias, hostname)) { if (outhttp) *outhttp = http; return 1; } } /* XXX It might be good to avoid recursion here, but I don't see a way to do that w/o a list. */ TAILQ_FOREACH(vhost, &http->virtualhosts, next_vhost) { if (evhttp_find_alias(vhost, outhttp, hostname)) return 1; } return 0; } /* Attempts to find the best http object to handle a request for a hostname. All aliases for the root http object and vhosts are searched for an exact match. Then, the vhost hierarchy is traversed again for a matching pattern. If an alias or vhost is matched, 1 is returned, and outhttp, if non-null, is set with the best matching http object. If there are no matches, the root http object is stored in outhttp and 0 is returned. */ static int evhttp_find_vhost(struct evhttp *http, struct evhttp **outhttp, const char *hostname) { struct evhttp *vhost; struct evhttp *oldhttp; int match_found = 0; if (evhttp_find_alias(http, outhttp, hostname)) return 1; do { oldhttp = http; TAILQ_FOREACH(vhost, &http->virtualhosts, next_vhost) { if (prefix_suffix_match(vhost->vhost_pattern, hostname, 1 /* ignorecase */)) { http = vhost; match_found = 1; break; } } } while (oldhttp != http); if (outhttp) *outhttp = http; return match_found; } static void evhttp_handle_request(struct evhttp_request *req, void *arg) { struct evhttp *http = arg; struct evhttp_cb *cb = NULL; const char *hostname; /* we have a new request on which the user needs to take action */ req->userdone = 0; if (req->type == 0 || req->uri == NULL) { evhttp_send_error(req, HTTP_BADREQUEST, NULL); return; } if ((http->allowed_methods & req->type) == 0) { event_debug(("Rejecting disallowed method %x (allowed: %x)\n", (unsigned)req->type, (unsigned)http->allowed_methods)); evhttp_send_error(req, HTTP_NOTIMPLEMENTED, NULL); return; } /* handle potential virtual hosts */ hostname = evhttp_request_get_host(req); if (hostname != NULL) { evhttp_find_vhost(http, &http, hostname); } if ((cb = evhttp_dispatch_callback(&http->callbacks, req)) != NULL) { (*cb->cb)(req, cb->cbarg); return; } /* Generic call back */ if (http->gencb) { (*http->gencb)(req, http->gencbarg); return; } else { /* We need to send a 404 here */ #define ERR_FORMAT "" \ "404 Not Found" \ "" \ "

Not Found

" \ "

The requested URL %s was not found on this server.

"\ "\n" char *escaped_html; struct evbuffer *buf; if ((escaped_html = evhttp_htmlescape(req->uri)) == NULL) { evhttp_connection_free(req->evcon); return; } if ((buf = evbuffer_new()) == NULL) { mm_free(escaped_html); evhttp_connection_free(req->evcon); return; } evhttp_response_code(req, HTTP_NOTFOUND, "Not Found"); evbuffer_add_printf(buf, ERR_FORMAT, escaped_html); mm_free(escaped_html); evhttp_send_page(req, buf); evbuffer_free(buf); #undef ERR_FORMAT } } /* Listener callback when a connection arrives at a server. */ static void accept_socket_cb(struct evconnlistener *listener, evutil_socket_t nfd, struct sockaddr *peer_sa, int peer_socklen, void *arg) { struct evhttp *http = arg; evhttp_get_request(http, nfd, peer_sa, peer_socklen); } int evhttp_bind_socket(struct evhttp *http, const char *address, ev_uint16_t port) { struct evhttp_bound_socket *bound = evhttp_bind_socket_with_handle(http, address, port); if (bound == NULL) return (-1); return (0); } struct evhttp_bound_socket * evhttp_bind_socket_with_handle(struct evhttp *http, const char *address, ev_uint16_t port) { evutil_socket_t fd; struct evhttp_bound_socket *bound; if ((fd = bind_socket(address, port, 1 /*reuse*/)) == -1) return (NULL); if (listen(fd, 128) == -1) { event_sock_warn(fd, "%s: listen", __func__); evutil_closesocket(fd); return (NULL); } bound = evhttp_accept_socket_with_handle(http, fd); if (bound != NULL) { event_debug(("Bound to port %d - Awaiting connections ... ", port)); return (bound); } return (NULL); } int evhttp_accept_socket(struct evhttp *http, evutil_socket_t fd) { struct evhttp_bound_socket *bound = evhttp_accept_socket_with_handle(http, fd); if (bound == NULL) return (-1); return (0); } struct evhttp_bound_socket * evhttp_accept_socket_with_handle(struct evhttp *http, evutil_socket_t fd) { struct evhttp_bound_socket *bound; struct evconnlistener *listener; const int flags = LEV_OPT_REUSEABLE|LEV_OPT_CLOSE_ON_EXEC|LEV_OPT_CLOSE_ON_FREE; listener = evconnlistener_new(http->base, NULL, NULL, flags, 0, /* Backlog is '0' because we already said 'listen' */ fd); if (!listener) return (NULL); bound = evhttp_bind_listener(http, listener); if (!bound) { evconnlistener_free(listener); return (NULL); } return (bound); } struct evhttp_bound_socket * evhttp_bind_listener(struct evhttp *http, struct evconnlistener *listener) { struct evhttp_bound_socket *bound; bound = mm_malloc(sizeof(struct evhttp_bound_socket)); if (bound == NULL) return (NULL); bound->listener = listener; TAILQ_INSERT_TAIL(&http->sockets, bound, next); evconnlistener_set_cb(listener, accept_socket_cb, http); return bound; } evutil_socket_t evhttp_bound_socket_get_fd(struct evhttp_bound_socket *bound) { return evconnlistener_get_fd(bound->listener); } struct evconnlistener * evhttp_bound_socket_get_listener(struct evhttp_bound_socket *bound) { return bound->listener; } void evhttp_del_accept_socket(struct evhttp *http, struct evhttp_bound_socket *bound) { TAILQ_REMOVE(&http->sockets, bound, next); evconnlistener_free(bound->listener); mm_free(bound); } static struct evhttp* evhttp_new_object(void) { struct evhttp *http = NULL; if ((http = mm_calloc(1, sizeof(struct evhttp))) == NULL) { event_warn("%s: calloc", __func__); return (NULL); } http->timeout = -1; evhttp_set_max_headers_size(http, EV_SIZE_MAX); evhttp_set_max_body_size(http, EV_SIZE_MAX); evhttp_set_allowed_methods(http, EVHTTP_REQ_GET | EVHTTP_REQ_POST | EVHTTP_REQ_HEAD | EVHTTP_REQ_PUT | EVHTTP_REQ_DELETE); TAILQ_INIT(&http->sockets); TAILQ_INIT(&http->callbacks); TAILQ_INIT(&http->connections); TAILQ_INIT(&http->virtualhosts); TAILQ_INIT(&http->aliases); return (http); } struct evhttp * evhttp_new(struct event_base *base) { struct evhttp *http = NULL; http = evhttp_new_object(); if (http == NULL) return (NULL); http->base = base; return (http); } /* * Start a web server on the specified address and port. */ struct evhttp * evhttp_start(const char *address, unsigned short port) { struct evhttp *http = NULL; http = evhttp_new_object(); if (http == NULL) return (NULL); if (evhttp_bind_socket(http, address, port) == -1) { mm_free(http); return (NULL); } return (http); } void evhttp_free(struct evhttp* http) { struct evhttp_cb *http_cb; struct evhttp_connection *evcon; struct evhttp_bound_socket *bound; struct evhttp* vhost; struct evhttp_server_alias *alias; /* Remove the accepting part */ while ((bound = TAILQ_FIRST(&http->sockets)) != NULL) { TAILQ_REMOVE(&http->sockets, bound, next); evconnlistener_free(bound->listener); mm_free(bound); } while ((evcon = TAILQ_FIRST(&http->connections)) != NULL) { /* evhttp_connection_free removes the connection */ evhttp_connection_free(evcon); } while ((http_cb = TAILQ_FIRST(&http->callbacks)) != NULL) { TAILQ_REMOVE(&http->callbacks, http_cb, next); mm_free(http_cb->what); mm_free(http_cb); } while ((vhost = TAILQ_FIRST(&http->virtualhosts)) != NULL) { TAILQ_REMOVE(&http->virtualhosts, vhost, next_vhost); evhttp_free(vhost); } if (http->vhost_pattern != NULL) mm_free(http->vhost_pattern); while ((alias = TAILQ_FIRST(&http->aliases)) != NULL) { TAILQ_REMOVE(&http->aliases, alias, next); mm_free(alias->alias); mm_free(alias); } mm_free(http); } int evhttp_add_virtual_host(struct evhttp* http, const char *pattern, struct evhttp* vhost) { /* a vhost can only be a vhost once and should not have bound sockets */ if (vhost->vhost_pattern != NULL || TAILQ_FIRST(&vhost->sockets) != NULL) return (-1); vhost->vhost_pattern = mm_strdup(pattern); if (vhost->vhost_pattern == NULL) return (-1); TAILQ_INSERT_TAIL(&http->virtualhosts, vhost, next_vhost); return (0); } int evhttp_remove_virtual_host(struct evhttp* http, struct evhttp* vhost) { if (vhost->vhost_pattern == NULL) return (-1); TAILQ_REMOVE(&http->virtualhosts, vhost, next_vhost); mm_free(vhost->vhost_pattern); vhost->vhost_pattern = NULL; return (0); } int evhttp_add_server_alias(struct evhttp *http, const char *alias) { struct evhttp_server_alias *evalias; evalias = mm_calloc(1, sizeof(*evalias)); if (!evalias) return -1; evalias->alias = mm_strdup(alias); if (!evalias->alias) { mm_free(evalias); return -1; } TAILQ_INSERT_TAIL(&http->aliases, evalias, next); return 0; } int evhttp_remove_server_alias(struct evhttp *http, const char *alias) { struct evhttp_server_alias *evalias; TAILQ_FOREACH(evalias, &http->aliases, next) { if (evutil_ascii_strcasecmp(evalias->alias, alias) == 0) { TAILQ_REMOVE(&http->aliases, evalias, next); mm_free(evalias->alias); mm_free(evalias); return 0; } } return -1; } void evhttp_set_timeout(struct evhttp* http, int timeout_in_secs) { http->timeout = timeout_in_secs; } void evhttp_set_max_headers_size(struct evhttp* http, ev_ssize_t max_headers_size) { if (max_headers_size < 0) http->default_max_headers_size = EV_SIZE_MAX; else http->default_max_headers_size = max_headers_size; } void evhttp_set_max_body_size(struct evhttp* http, ev_ssize_t max_body_size) { if (max_body_size < 0) http->default_max_body_size = EV_UINT64_MAX; else http->default_max_body_size = max_body_size; } void evhttp_set_allowed_methods(struct evhttp* http, ev_uint16_t methods) { http->allowed_methods = methods; } int evhttp_set_cb(struct evhttp *http, const char *uri, void (*cb)(struct evhttp_request *, void *), void *cbarg) { struct evhttp_cb *http_cb; TAILQ_FOREACH(http_cb, &http->callbacks, next) { if (strcmp(http_cb->what, uri) == 0) return (-1); } if ((http_cb = mm_calloc(1, sizeof(struct evhttp_cb))) == NULL) { event_warn("%s: calloc", __func__); return (-2); } http_cb->what = mm_strdup(uri); if (http_cb->what == NULL) { event_warn("%s: strdup", __func__); mm_free(http_cb); return (-3); } http_cb->cb = cb; http_cb->cbarg = cbarg; TAILQ_INSERT_TAIL(&http->callbacks, http_cb, next); return (0); } int evhttp_del_cb(struct evhttp *http, const char *uri) { struct evhttp_cb *http_cb; TAILQ_FOREACH(http_cb, &http->callbacks, next) { if (strcmp(http_cb->what, uri) == 0) break; } if (http_cb == NULL) return (-1); TAILQ_REMOVE(&http->callbacks, http_cb, next); mm_free(http_cb->what); mm_free(http_cb); return (0); } void evhttp_set_gencb(struct evhttp *http, void (*cb)(struct evhttp_request *, void *), void *cbarg) { http->gencb = cb; http->gencbarg = cbarg; } /* * Request related functions */ struct evhttp_request * evhttp_request_new(void (*cb)(struct evhttp_request *, void *), void *arg) { struct evhttp_request *req = NULL; /* Allocate request structure */ if ((req = mm_calloc(1, sizeof(struct evhttp_request))) == NULL) { event_warn("%s: calloc", __func__); goto error; } req->headers_size = 0; req->body_size = 0; req->kind = EVHTTP_RESPONSE; req->input_headers = mm_calloc(1, sizeof(struct evkeyvalq)); if (req->input_headers == NULL) { event_warn("%s: calloc", __func__); goto error; } TAILQ_INIT(req->input_headers); req->output_headers = mm_calloc(1, sizeof(struct evkeyvalq)); if (req->output_headers == NULL) { event_warn("%s: calloc", __func__); goto error; } TAILQ_INIT(req->output_headers); if ((req->input_buffer = evbuffer_new()) == NULL) { event_warn("%s: evbuffer_new", __func__); goto error; } if ((req->output_buffer = evbuffer_new()) == NULL) { event_warn("%s: evbuffer_new", __func__); goto error; } req->cb = cb; req->cb_arg = arg; return (req); error: if (req != NULL) evhttp_request_free(req); return (NULL); } void evhttp_request_free(struct evhttp_request *req) { if ((req->flags & EVHTTP_REQ_DEFER_FREE) != 0) { req->flags |= EVHTTP_REQ_NEEDS_FREE; return; } if (req->remote_host != NULL) mm_free(req->remote_host); if (req->uri != NULL) mm_free(req->uri); if (req->uri_elems != NULL) evhttp_uri_free(req->uri_elems); if (req->response_code_line != NULL) mm_free(req->response_code_line); if (req->host_cache != NULL) mm_free(req->host_cache); evhttp_clear_headers(req->input_headers); mm_free(req->input_headers); evhttp_clear_headers(req->output_headers); mm_free(req->output_headers); if (req->input_buffer != NULL) evbuffer_free(req->input_buffer); if (req->output_buffer != NULL) evbuffer_free(req->output_buffer); mm_free(req); } void evhttp_request_own(struct evhttp_request *req) { req->flags |= EVHTTP_USER_OWNED; } int evhttp_request_is_owned(struct evhttp_request *req) { return (req->flags & EVHTTP_USER_OWNED) != 0; } struct evhttp_connection * evhttp_request_get_connection(struct evhttp_request *req) { return req->evcon; } struct event_base * evhttp_connection_get_base(struct evhttp_connection *conn) { return conn->base; } void evhttp_request_set_chunked_cb(struct evhttp_request *req, void (*cb)(struct evhttp_request *, void *)) { req->chunk_cb = cb; } /* * Allows for inspection of the request URI */ const char * evhttp_request_get_uri(const struct evhttp_request *req) { if (req->uri == NULL) event_debug(("%s: request %p has no uri\n", __func__, req)); return (req->uri); } const struct evhttp_uri * evhttp_request_get_evhttp_uri(const struct evhttp_request *req) { if (req->uri_elems == NULL) event_debug(("%s: request %p has no uri elems\n", __func__, req)); return (req->uri_elems); } const char * evhttp_request_get_host(struct evhttp_request *req) { const char *host = NULL; if (req->host_cache) return req->host_cache; if (req->uri_elems) host = evhttp_uri_get_host(req->uri_elems); if (!host && req->input_headers) { const char *p; size_t len; host = evhttp_find_header(req->input_headers, "Host"); /* The Host: header may include a port. Remove it here to be consistent with uri_elems case above. */ if (host) { p = host + strlen(host) - 1; while (p > host && EVUTIL_ISDIGIT(*p)) --p; if (p > host && *p == ':') { len = p - host; req->host_cache = mm_malloc(len + 1); if (!req->host_cache) { event_warn("%s: malloc", __func__); return NULL; } memcpy(req->host_cache, host, len); req->host_cache[len] = '\0'; host = req->host_cache; } } } return host; } enum evhttp_cmd_type evhttp_request_get_command(const struct evhttp_request *req) { return (req->type); } int evhttp_request_get_response_code(const struct evhttp_request *req) { return req->response_code; } /** Returns the input headers */ struct evkeyvalq *evhttp_request_get_input_headers(struct evhttp_request *req) { return (req->input_headers); } /** Returns the output headers */ struct evkeyvalq *evhttp_request_get_output_headers(struct evhttp_request *req) { return (req->output_headers); } /** Returns the input buffer */ struct evbuffer *evhttp_request_get_input_buffer(struct evhttp_request *req) { return (req->input_buffer); } /** Returns the output buffer */ struct evbuffer *evhttp_request_get_output_buffer(struct evhttp_request *req) { return (req->output_buffer); } /* * Takes a file descriptor to read a request from. * The callback is executed once the whole request has been read. */ static struct evhttp_connection* evhttp_get_request_connection( struct evhttp* http, evutil_socket_t fd, struct sockaddr *sa, ev_socklen_t salen) { struct evhttp_connection *evcon; char *hostname = NULL, *portname = NULL; name_from_addr(sa, salen, &hostname, &portname); if (hostname == NULL || portname == NULL) { if (hostname) mm_free(hostname); if (portname) mm_free(portname); return (NULL); } event_debug(("%s: new request from %s:%s on "EV_SOCK_FMT"\n", __func__, hostname, portname, EV_SOCK_ARG(fd))); /* we need a connection object to put the http request on */ evcon = evhttp_connection_base_new( http->base, NULL, hostname, atoi(portname)); mm_free(hostname); mm_free(portname); if (evcon == NULL) return (NULL); evcon->max_headers_size = http->default_max_headers_size; evcon->max_body_size = http->default_max_body_size; evcon->flags |= EVHTTP_CON_INCOMING; evcon->state = EVCON_READING_FIRSTLINE; evcon->fd = fd; bufferevent_setfd(evcon->bufev, fd); return (evcon); } static int evhttp_associate_new_request_with_connection(struct evhttp_connection *evcon) { struct evhttp *http = evcon->http_server; struct evhttp_request *req; if ((req = evhttp_request_new(evhttp_handle_request, http)) == NULL) return (-1); if ((req->remote_host = mm_strdup(evcon->address)) == NULL) { event_warn("%s: strdup", __func__); evhttp_request_free(req); return (-1); } req->remote_port = evcon->port; req->evcon = evcon; /* the request ends up owning the connection */ req->flags |= EVHTTP_REQ_OWN_CONNECTION; /* We did not present the request to the user user yet, so treat it as * if the user was done with the request. This allows us to free the * request on a persistent connection if the client drops it without * sending a request. */ req->userdone = 1; TAILQ_INSERT_TAIL(&evcon->requests, req, next); req->kind = EVHTTP_REQUEST; evhttp_start_read(evcon); return (0); } static void evhttp_get_request(struct evhttp *http, evutil_socket_t fd, struct sockaddr *sa, ev_socklen_t salen) { struct evhttp_connection *evcon; evcon = evhttp_get_request_connection(http, fd, sa, salen); if (evcon == NULL) { event_sock_warn(fd, "%s: cannot get connection on "EV_SOCK_FMT, __func__, EV_SOCK_ARG(fd)); evutil_closesocket(fd); return; } /* the timeout can be used by the server to close idle connections */ if (http->timeout != -1) evhttp_connection_set_timeout(evcon, http->timeout); /* * if we want to accept more than one request on a connection, * we need to know which http server it belongs to. */ evcon->http_server = http; TAILQ_INSERT_TAIL(&http->connections, evcon, next); if (evhttp_associate_new_request_with_connection(evcon) == -1) evhttp_connection_free(evcon); } /* * Network helper functions that we do not want to export to the rest of * the world. */ static void name_from_addr(struct sockaddr *sa, ev_socklen_t salen, char **phost, char **pport) { char ntop[NI_MAXHOST]; char strport[NI_MAXSERV]; int ni_result; #ifdef _EVENT_HAVE_GETNAMEINFO ni_result = getnameinfo(sa, salen, ntop, sizeof(ntop), strport, sizeof(strport), NI_NUMERICHOST|NI_NUMERICSERV); if (ni_result != 0) { #ifdef EAI_SYSTEM /* Windows doesn't have an EAI_SYSTEM. */ if (ni_result == EAI_SYSTEM) event_err(1, "getnameinfo failed"); else #endif event_errx(1, "getnameinfo failed: %s", gai_strerror(ni_result)); return; } #else ni_result = fake_getnameinfo(sa, salen, ntop, sizeof(ntop), strport, sizeof(strport), NI_NUMERICHOST|NI_NUMERICSERV); if (ni_result != 0) return; #endif *phost = mm_strdup(ntop); *pport = mm_strdup(strport); } /* Create a non-blocking socket and bind it */ /* todo: rename this function */ static evutil_socket_t bind_socket_ai(struct evutil_addrinfo *ai, int reuse) { evutil_socket_t fd; int on = 1, r; int serrno; /* Create listen socket */ fd = socket(ai ? ai->ai_family : AF_INET, SOCK_STREAM, 0); if (fd == -1) { event_sock_warn(-1, "socket"); return (-1); } if (evutil_make_socket_nonblocking(fd) < 0) goto out; if (evutil_make_socket_closeonexec(fd) < 0) goto out; if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&on, sizeof(on))<0) goto out; if (reuse) { if (evutil_make_listen_socket_reuseable(fd) < 0) goto out; } if (ai != NULL) { r = bind(fd, ai->ai_addr, (ev_socklen_t)ai->ai_addrlen); if (r == -1) goto out; } return (fd); out: serrno = EVUTIL_SOCKET_ERROR(); evutil_closesocket(fd); EVUTIL_SET_SOCKET_ERROR(serrno); return (-1); } static struct evutil_addrinfo * make_addrinfo(const char *address, ev_uint16_t port) { struct evutil_addrinfo *ai = NULL; struct evutil_addrinfo hints; char strport[NI_MAXSERV]; int ai_result; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_STREAM; /* turn NULL hostname into INADDR_ANY, and skip looking up any address * types we don't have an interface to connect to. */ hints.ai_flags = EVUTIL_AI_PASSIVE|EVUTIL_AI_ADDRCONFIG; evutil_snprintf(strport, sizeof(strport), "%d", port); if ((ai_result = evutil_getaddrinfo(address, strport, &hints, &ai)) != 0) { if (ai_result == EVUTIL_EAI_SYSTEM) event_warn("getaddrinfo"); else event_warnx("getaddrinfo: %s", evutil_gai_strerror(ai_result)); return (NULL); } return (ai); } static evutil_socket_t bind_socket(const char *address, ev_uint16_t port, int reuse) { evutil_socket_t fd; struct evutil_addrinfo *aitop = NULL; /* just create an unbound socket */ if (address == NULL && port == 0) return bind_socket_ai(NULL, 0); aitop = make_addrinfo(address, port); if (aitop == NULL) return (-1); fd = bind_socket_ai(aitop, reuse); evutil_freeaddrinfo(aitop); return (fd); } struct evhttp_uri { unsigned flags; char *scheme; /* scheme; e.g http, ftp etc */ char *userinfo; /* userinfo (typically username:pass), or NULL */ char *host; /* hostname, IP address, or NULL */ int port; /* port, or zero */ char *path; /* path, or "". */ char *query; /* query, or NULL */ char *fragment; /* fragment or NULL */ }; struct evhttp_uri * evhttp_uri_new(void) { struct evhttp_uri *uri = mm_calloc(sizeof(struct evhttp_uri), 1); if (uri) uri->port = -1; return uri; } void evhttp_uri_set_flags(struct evhttp_uri *uri, unsigned flags) { uri->flags = flags; } /* Return true if the string starting at s and ending immediately before eos * is a valid URI scheme according to RFC3986 */ static int scheme_ok(const char *s, const char *eos) { /* scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." ) */ EVUTIL_ASSERT(eos >= s); if (s == eos) return 0; if (!EVUTIL_ISALPHA(*s)) return 0; while (++s < eos) { if (! EVUTIL_ISALNUM(*s) && *s != '+' && *s != '-' && *s != '.') return 0; } return 1; } #define SUBDELIMS "!$&'()*+,;=" /* Return true iff [s..eos) is a valid userinfo */ static int userinfo_ok(const char *s, const char *eos) { while (s < eos) { if (CHAR_IS_UNRESERVED(*s) || strchr(SUBDELIMS, *s) || *s == ':') ++s; else if (*s == '%' && s+2 < eos && EVUTIL_ISXDIGIT(s[1]) && EVUTIL_ISXDIGIT(s[2])) s += 3; else return 0; } return 1; } static int regname_ok(const char *s, const char *eos) { while (s && s eos || *s != '[' || *(eos-1) != ']') return 0; if (s[1] == 'v') { /* IPvFuture, or junk. "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" ) */ s += 2; /* skip [v */ --eos; if (!EVUTIL_ISXDIGIT(*s)) /*require at least one*/ return 0; while (s < eos && *s != '.') { if (EVUTIL_ISXDIGIT(*s)) ++s; else return 0; } if (*s != '.') return 0; ++s; while (s < eos) { if (CHAR_IS_UNRESERVED(*s) || strchr(SUBDELIMS, *s) || *s == ':') ++s; else return 0; } return 2; } else { /* IPv6, or junk */ char buf[64]; ev_ssize_t n_chars = eos-s-2; struct in6_addr in6; if (n_chars >= 64) /* way too long */ return 0; memcpy(buf, s+1, n_chars); buf[n_chars]='\0'; return (evutil_inet_pton(AF_INET6,buf,&in6)==1) ? 1 : 0; } } static int parse_authority(struct evhttp_uri *uri, char *s, char *eos) { char *cp, *port; EVUTIL_ASSERT(eos); if (eos == s) { uri->host = mm_strdup(""); if (uri->host == NULL) { event_warn("%s: strdup", __func__); return -1; } return 0; } /* Optionally, we start with "userinfo@" */ cp = strchr(s, '@'); if (cp && cp < eos) { if (! userinfo_ok(s,cp)) return -1; *cp++ = '\0'; uri->userinfo = mm_strdup(s); if (uri->userinfo == NULL) { event_warn("%s: strdup", __func__); return -1; } } else { cp = s; } /* Optionally, we end with ":port" */ for (port=eos-1; port >= cp && EVUTIL_ISDIGIT(*port); --port) ; if (port >= cp && *port == ':') { if (port+1 == eos) /* Leave port unspecified; the RFC allows a * nil port */ uri->port = -1; else if ((uri->port = parse_port(port+1, eos))<0) return -1; eos = port; } /* Now, cp..eos holds the "host" port, which can be an IPv4Address, * an IP-Literal, or a reg-name */ EVUTIL_ASSERT(eos >= cp); if (*cp == '[' && eos >= cp+2 && *(eos-1) == ']') { /* IPv6address, IP-Literal, or junk. */ if (! bracket_addr_ok(cp, eos)) return -1; } else { /* Make sure the host part is ok. */ if (! regname_ok(cp,eos)) /* Match IPv4Address or reg-name */ return -1; } uri->host = mm_malloc(eos-cp+1); if (uri->host == NULL) { event_warn("%s: malloc", __func__); return -1; } memcpy(uri->host, cp, eos-cp); uri->host[eos-cp] = '\0'; return 0; } static char * end_of_authority(char *cp) { while (*cp) { if (*cp == '?' || *cp == '#' || *cp == '/') return cp; ++cp; } return cp; } enum uri_part { PART_PATH, PART_QUERY, PART_FRAGMENT }; /* Return the character after the longest prefix of 'cp' that matches... * *pchar / "/" if allow_qchars is false, or * *(pchar / "/" / "?") if allow_qchars is true. */ static char * end_of_path(char *cp, enum uri_part part, unsigned flags) { if (flags & EVHTTP_URI_NONCONFORMANT) { /* If NONCONFORMANT: * Path is everything up to a # or ? or nul. * Query is everything up a # or nul * Fragment is everything up to a nul. */ switch (part) { case PART_PATH: while (*cp && *cp != '#' && *cp != '?') ++cp; break; case PART_QUERY: while (*cp && *cp != '#') ++cp; break; case PART_FRAGMENT: cp += strlen(cp); break; }; return cp; } while (*cp) { if (CHAR_IS_UNRESERVED(*cp) || strchr(SUBDELIMS, *cp) || *cp == ':' || *cp == '@' || *cp == '/') ++cp; else if (*cp == '%' && EVUTIL_ISXDIGIT(cp[1]) && EVUTIL_ISXDIGIT(cp[2])) cp += 3; else if (*cp == '?' && part != PART_PATH) ++cp; else return cp; } return cp; } static int path_matches_noscheme(const char *cp) { while (*cp) { if (*cp == ':') return 0; else if (*cp == '/') return 1; ++cp; } return 1; } struct evhttp_uri * evhttp_uri_parse(const char *source_uri) { return evhttp_uri_parse_with_flags(source_uri, 0); } struct evhttp_uri * evhttp_uri_parse_with_flags(const char *source_uri, unsigned flags) { char *readbuf = NULL, *readp = NULL, *token = NULL, *query = NULL; char *path = NULL, *fragment = NULL; int got_authority = 0; struct evhttp_uri *uri = mm_calloc(1, sizeof(struct evhttp_uri)); if (uri == NULL) { event_warn("%s: calloc", __func__); goto err; } uri->port = -1; uri->flags = flags; readbuf = mm_strdup(source_uri); if (readbuf == NULL) { event_warn("%s: strdup", __func__); goto err; } readp = readbuf; token = NULL; /* We try to follow RFC3986 here as much as we can, and match the productions URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ] relative-ref = relative-part [ "?" query ] [ "#" fragment ] */ /* 1. scheme: */ token = strchr(readp, ':'); if (token && scheme_ok(readp,token)) { *token = '\0'; uri->scheme = mm_strdup(readp); if (uri->scheme == NULL) { event_warn("%s: strdup", __func__); goto err; } readp = token+1; /* eat : */ } /* 2. Optionally, "//" then an 'authority' part. */ if (readp[0]=='/' && readp[1] == '/') { char *authority; readp += 2; authority = readp; path = end_of_authority(readp); if (parse_authority(uri, authority, path) < 0) goto err; readp = path; got_authority = 1; } /* 3. Query: path-abempty, path-absolute, path-rootless, or path-empty */ path = readp; readp = end_of_path(path, PART_PATH, flags); /* Query */ if (*readp == '?') { *readp = '\0'; ++readp; query = readp; readp = end_of_path(readp, PART_QUERY, flags); } /* fragment */ if (*readp == '#') { *readp = '\0'; ++readp; fragment = readp; readp = end_of_path(readp, PART_FRAGMENT, flags); } if (*readp != '\0') { goto err; } /* These next two cases may be unreachable; I'm leaving them * in to be defensive. */ /* If you didn't get an authority, the path can't begin with "//" */ if (!got_authority && path[0]=='/' && path[1]=='/') goto err; /* If you did get an authority, the path must begin with "/" or be * empty. */ if (got_authority && path[0] != '/' && path[0] != '\0') goto err; /* (End of maybe-unreachable cases) */ /* If there was no scheme, the first part of the path (if any) must * have no colon in it. */ if (! uri->scheme && !path_matches_noscheme(path)) goto err; EVUTIL_ASSERT(path); uri->path = mm_strdup(path); if (uri->path == NULL) { event_warn("%s: strdup", __func__); goto err; } if (query) { uri->query = mm_strdup(query); if (uri->query == NULL) { event_warn("%s: strdup", __func__); goto err; } } if (fragment) { uri->fragment = mm_strdup(fragment); if (uri->fragment == NULL) { event_warn("%s: strdup", __func__); goto err; } } mm_free(readbuf); return uri; err: if (uri) evhttp_uri_free(uri); if (readbuf) mm_free(readbuf); return NULL; } void evhttp_uri_free(struct evhttp_uri *uri) { #define _URI_FREE_STR(f) \ if (uri->f) { \ mm_free(uri->f); \ } _URI_FREE_STR(scheme); _URI_FREE_STR(userinfo); _URI_FREE_STR(host); _URI_FREE_STR(path); _URI_FREE_STR(query); _URI_FREE_STR(fragment); mm_free(uri); #undef _URI_FREE_STR } char * evhttp_uri_join(struct evhttp_uri *uri, char *buf, size_t limit) { struct evbuffer *tmp = 0; size_t joined_size = 0; char *output = NULL; #define _URI_ADD(f) evbuffer_add(tmp, uri->f, strlen(uri->f)) if (!uri || !buf || !limit) return NULL; tmp = evbuffer_new(); if (!tmp) return NULL; if (uri->scheme) { _URI_ADD(scheme); evbuffer_add(tmp, ":", 1); } if (uri->host) { evbuffer_add(tmp, "//", 2); if (uri->userinfo) evbuffer_add_printf(tmp,"%s@", uri->userinfo); _URI_ADD(host); if (uri->port >= 0) evbuffer_add_printf(tmp,":%d", uri->port); if (uri->path && uri->path[0] != '/' && uri->path[0] != '\0') goto err; } if (uri->path) _URI_ADD(path); if (uri->query) { evbuffer_add(tmp, "?", 1); _URI_ADD(query); } if (uri->fragment) { evbuffer_add(tmp, "#", 1); _URI_ADD(fragment); } evbuffer_add(tmp, "\0", 1); /* NUL */ joined_size = evbuffer_get_length(tmp); if (joined_size > limit) { /* It doesn't fit. */ evbuffer_free(tmp); return NULL; } evbuffer_remove(tmp, buf, joined_size); output = buf; err: evbuffer_free(tmp); return output; #undef _URI_ADD } const char * evhttp_uri_get_scheme(const struct evhttp_uri *uri) { return uri->scheme; } const char * evhttp_uri_get_userinfo(const struct evhttp_uri *uri) { return uri->userinfo; } const char * evhttp_uri_get_host(const struct evhttp_uri *uri) { return uri->host; } int evhttp_uri_get_port(const struct evhttp_uri *uri) { return uri->port; } const char * evhttp_uri_get_path(const struct evhttp_uri *uri) { return uri->path; } const char * evhttp_uri_get_query(const struct evhttp_uri *uri) { return uri->query; } const char * evhttp_uri_get_fragment(const struct evhttp_uri *uri) { return uri->fragment; } #define _URI_SET_STR(f) do { \ if (uri->f) \ mm_free(uri->f); \ if (f) { \ if ((uri->f = mm_strdup(f)) == NULL) { \ event_warn("%s: strdup()", __func__); \ return -1; \ } \ } else { \ uri->f = NULL; \ } \ } while(0) int evhttp_uri_set_scheme(struct evhttp_uri *uri, const char *scheme) { if (scheme && !scheme_ok(scheme, scheme+strlen(scheme))) return -1; _URI_SET_STR(scheme); return 0; } int evhttp_uri_set_userinfo(struct evhttp_uri *uri, const char *userinfo) { if (userinfo && !userinfo_ok(userinfo, userinfo+strlen(userinfo))) return -1; _URI_SET_STR(userinfo); return 0; } int evhttp_uri_set_host(struct evhttp_uri *uri, const char *host) { if (host) { if (host[0] == '[') { if (! bracket_addr_ok(host, host+strlen(host))) return -1; } else { if (! regname_ok(host, host+strlen(host))) return -1; } } _URI_SET_STR(host); return 0; } int evhttp_uri_set_port(struct evhttp_uri *uri, int port) { if (port < -1) return -1; uri->port = port; return 0; } #define end_of_cpath(cp,p,f) \ ((const char*)(end_of_path(((char*)(cp)), (p), (f)))) int evhttp_uri_set_path(struct evhttp_uri *uri, const char *path) { if (path && end_of_cpath(path, PART_PATH, uri->flags) != path+strlen(path)) return -1; _URI_SET_STR(path); return 0; } int evhttp_uri_set_query(struct evhttp_uri *uri, const char *query) { if (query && end_of_cpath(query, PART_QUERY, uri->flags) != query+strlen(query)) return -1; _URI_SET_STR(query); return 0; } int evhttp_uri_set_fragment(struct evhttp_uri *uri, const char *fragment) { if (fragment && end_of_cpath(fragment, PART_FRAGMENT, uri->flags) != fragment+strlen(fragment)) return -1; _URI_SET_STR(fragment); return 0; } dnscrypt-proxy-1.9.4/src/libevent-modified/include/000755 000765 000024 00000000000 13040635351 021746 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/libevent-modified/install-sh000755 000765 000024 00000034523 13040635261 022336 0ustar00jstaff000000 000000 #!/bin/sh # install - install a program, script, or datafile scriptversion=2013-12-25.23; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the # following copyright and license. # # Copyright (C) 1994 X Consortium # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to # deal in the Software without restriction, including without limitation the # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or # sell copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # # Except as contained in this notice, the name of the X Consortium shall not # be used in advertising or otherwise to promote the sale, use or other deal- # ings in this Software without prior written authorization from the X Consor- # tium. # # # FSF changes to this file are in the public domain. # # Calling this script install-sh is preferred over install.sh, to prevent # 'make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. tab=' ' nl=' ' IFS=" $tab$nl" # Set DOITPROG to "echo" to test this script. doit=${DOITPROG-} doit_exec=${doit:-exec} # Put in absolute file names if you don't have them in your path; # or use environment vars. chgrpprog=${CHGRPPROG-chgrp} chmodprog=${CHMODPROG-chmod} chownprog=${CHOWNPROG-chown} cmpprog=${CMPPROG-cmp} cpprog=${CPPROG-cp} mkdirprog=${MKDIRPROG-mkdir} mvprog=${MVPROG-mv} rmprog=${RMPROG-rm} stripprog=${STRIPPROG-strip} posix_mkdir= # Desired mode of installed file. mode=0755 chgrpcmd= chmodcmd=$chmodprog chowncmd= mvcmd=$mvprog rmcmd="$rmprog -f" stripcmd= src= dst= dir_arg= dst_arg= copy_on_change=false is_target_a_directory=possibly usage="\ Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE or: $0 [OPTION]... SRCFILES... DIRECTORY or: $0 [OPTION]... -t DIRECTORY SRCFILES... or: $0 [OPTION]... -d DIRECTORIES... In the 1st form, copy SRCFILE to DSTFILE. In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. In the 4th, create DIRECTORIES. Options: --help display this help and exit. --version display version info and exit. -c (ignored) -C install only if different (preserve the last data modification time) -d create directories instead of installing files. -g GROUP $chgrpprog installed files to GROUP. -m MODE $chmodprog installed files to MODE. -o USER $chownprog installed files to USER. -s $stripprog installed files. -t DIRECTORY install into DIRECTORY. -T report an error if DSTFILE is a directory. Environment variables override the default commands: CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG " while test $# -ne 0; do case $1 in -c) ;; -C) copy_on_change=true;; -d) dir_arg=true;; -g) chgrpcmd="$chgrpprog $2" shift;; --help) echo "$usage"; exit $?;; -m) mode=$2 case $mode in *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*) echo "$0: invalid mode: $mode" >&2 exit 1;; esac shift;; -o) chowncmd="$chownprog $2" shift;; -s) stripcmd=$stripprog;; -t) is_target_a_directory=always dst_arg=$2 # Protect names problematic for 'test' and other utilities. case $dst_arg in -* | [=\(\)!]) dst_arg=./$dst_arg;; esac shift;; -T) is_target_a_directory=never;; --version) echo "$0 $scriptversion"; exit $?;; --) shift break;; -*) echo "$0: invalid option: $1" >&2 exit 1;; *) break;; esac shift done # We allow the use of options -d and -T together, by making -d # take the precedence; this is for compatibility with GNU install. if test -n "$dir_arg"; then if test -n "$dst_arg"; then echo "$0: target directory not allowed when installing a directory." >&2 exit 1 fi fi if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then # When -d is used, all remaining arguments are directories to create. # When -t is used, the destination is already specified. # Otherwise, the last argument is the destination. Remove it from $@. for arg do if test -n "$dst_arg"; then # $@ is not empty: it contains at least $arg. set fnord "$@" "$dst_arg" shift # fnord fi shift # arg dst_arg=$arg # Protect names problematic for 'test' and other utilities. case $dst_arg in -* | [=\(\)!]) dst_arg=./$dst_arg;; esac done fi if test $# -eq 0; then if test -z "$dir_arg"; then echo "$0: no input file specified." >&2 exit 1 fi # It's OK to call 'install-sh -d' without argument. # This can happen when creating conditional directories. exit 0 fi if test -z "$dir_arg"; then if test $# -gt 1 || test "$is_target_a_directory" = always; then if test ! -d "$dst_arg"; then echo "$0: $dst_arg: Is not a directory." >&2 exit 1 fi fi fi if test -z "$dir_arg"; then do_exit='(exit $ret); exit $ret' trap "ret=129; $do_exit" 1 trap "ret=130; $do_exit" 2 trap "ret=141; $do_exit" 13 trap "ret=143; $do_exit" 15 # Set umask so as not to create temps with too-generous modes. # However, 'strip' requires both read and write access to temps. case $mode in # Optimize common cases. *644) cp_umask=133;; *755) cp_umask=22;; *[0-7]) if test -z "$stripcmd"; then u_plus_rw= else u_plus_rw='% 200' fi cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; *) if test -z "$stripcmd"; then u_plus_rw= else u_plus_rw=,u+rw fi cp_umask=$mode$u_plus_rw;; esac fi for src do # Protect names problematic for 'test' and other utilities. case $src in -* | [=\(\)!]) src=./$src;; esac if test -n "$dir_arg"; then dst=$src dstdir=$dst test -d "$dstdir" dstdir_status=$? else # Waiting for this to be detected by the "$cpprog $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if test ! -f "$src" && test ! -d "$src"; then echo "$0: $src does not exist." >&2 exit 1 fi if test -z "$dst_arg"; then echo "$0: no destination specified." >&2 exit 1 fi dst=$dst_arg # If destination is a directory, append the input filename; won't work # if double slashes aren't ignored. if test -d "$dst"; then if test "$is_target_a_directory" = never; then echo "$0: $dst_arg: Is a directory" >&2 exit 1 fi dstdir=$dst dst=$dstdir/`basename "$src"` dstdir_status=0 else dstdir=`dirname "$dst"` test -d "$dstdir" dstdir_status=$? fi fi obsolete_mkdir_used=false if test $dstdir_status != 0; then case $posix_mkdir in '') # Create intermediate dirs using mode 755 as modified by the umask. # This is like FreeBSD 'install' as of 1997-10-28. umask=`umask` case $stripcmd.$umask in # Optimize common cases. *[2367][2367]) mkdir_umask=$umask;; .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; *[0-7]) mkdir_umask=`expr $umask + 22 \ - $umask % 100 % 40 + $umask % 20 \ - $umask % 10 % 4 + $umask % 2 `;; *) mkdir_umask=$umask,go-w;; esac # With -d, create the new directory with the user-specified mode. # Otherwise, rely on $mkdir_umask. if test -n "$dir_arg"; then mkdir_mode=-m$mode else mkdir_mode= fi posix_mkdir=false case $umask in *[123567][0-7][0-7]) # POSIX mkdir -p sets u+wx bits regardless of umask, which # is incompatible with FreeBSD 'install' when (umask & 300) != 0. ;; *) tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0 if (umask $mkdir_umask && exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1 then if test -z "$dir_arg" || { # Check for POSIX incompatibilities with -m. # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or # other-writable bit of parent directory when it shouldn't. # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. ls_ld_tmpdir=`ls -ld "$tmpdir"` case $ls_ld_tmpdir in d????-?r-*) different_mode=700;; d????-?--*) different_mode=755;; *) false;; esac && $mkdirprog -m$different_mode -p -- "$tmpdir" && { ls_ld_tmpdir_1=`ls -ld "$tmpdir"` test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" } } then posix_mkdir=: fi rmdir "$tmpdir/d" "$tmpdir" else # Remove any dirs left behind by ancient mkdir implementations. rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null fi trap '' 0;; esac;; esac if $posix_mkdir && ( umask $mkdir_umask && $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" ) then : else # The umask is ridiculous, or mkdir does not conform to POSIX, # or it failed possibly due to a race condition. Create the # directory the slow way, step by step, checking for races as we go. case $dstdir in /*) prefix='/';; [-=\(\)!]*) prefix='./';; *) prefix='';; esac oIFS=$IFS IFS=/ set -f set fnord $dstdir shift set +f IFS=$oIFS prefixes= for d do test X"$d" = X && continue prefix=$prefix$d if test -d "$prefix"; then prefixes= else if $posix_mkdir; then (umask=$mkdir_umask && $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break # Don't fail if two instances are running concurrently. test -d "$prefix" || exit 1 else case $prefix in *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; *) qprefix=$prefix;; esac prefixes="$prefixes '$qprefix'" fi fi prefix=$prefix/ done if test -n "$prefixes"; then # Don't fail if two instances are running concurrently. (umask $mkdir_umask && eval "\$doit_exec \$mkdirprog $prefixes") || test -d "$dstdir" || exit 1 obsolete_mkdir_used=true fi fi fi if test -n "$dir_arg"; then { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 else # Make a couple of temp file names in the proper directory. dsttmp=$dstdir/_inst.$$_ rmtmp=$dstdir/_rm.$$_ # Trap to clean up those temp files at exit. trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 # Copy the file name to the temp name. (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && # and set any options; do chmod last to preserve setuid bits. # # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $cpprog $src $dsttmp" command. # { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && # If -C, don't bother to copy if it wouldn't change the file. if $copy_on_change && old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && set -f && set X $old && old=:$2:$4:$5:$6 && set X $new && new=:$2:$4:$5:$6 && set +f && test "$old" = "$new" && $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 then rm -f "$dsttmp" else # Rename the file to the real destination. $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || # The rename failed, perhaps because mv can't rename something else # to itself, or perhaps because mv is so ancient that it does not # support -f. { # Now remove or move aside any old file at destination location. # We try this two ways since rm can't unlink itself on some # systems and the destination file might be busy for other # reasons. In this case, the final cleanup might fail but the new # file should still install successfully. { test ! -f "$dst" || $doit $rmcmd -f "$dst" 2>/dev/null || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } } || { echo "$0: cannot unlink or rename $dst" >&2 (exit 1); exit 1 } } && # Now rename the file to the real destination. $doit $mvcmd "$dsttmp" "$dst" } fi || exit 1 trap '' 0 fi done # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: dnscrypt-proxy-1.9.4/src/libevent-modified/iocp-internal.h000644 000765 000024 00000016765 13037731714 023265 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVENT_IOCP_INTERNAL_H #define _EVENT_IOCP_INTERNAL_H #ifdef __cplusplus extern "C" { #endif struct event_overlapped; struct event_iocp_port; struct evbuffer; typedef void (*iocp_callback)(struct event_overlapped *, ev_uintptr_t, ev_ssize_t, int success); /* This whole file is actually win32 only. We wrap the structures in a win32 * ifdef so that we can test-compile code that uses these interfaces on * non-win32 platforms. */ #ifdef WIN32 /** Internal use only. Wraps an OVERLAPPED that we're using for libevent functionality. Whenever an event_iocp_port gets an event for a given OVERLAPPED*, it upcasts the pointer to an event_overlapped, and calls the iocp_callback function with the event_overlapped, the iocp key, and the number of bytes transferred as arguments. */ struct event_overlapped { OVERLAPPED overlapped; iocp_callback cb; }; /* Mingw's headers don't define LPFN_ACCEPTEX. */ typedef BOOL (WINAPI *AcceptExPtr)(SOCKET, SOCKET, PVOID, DWORD, DWORD, DWORD, LPDWORD, LPOVERLAPPED); typedef BOOL (WINAPI *ConnectExPtr)(SOCKET, const struct sockaddr *, int, PVOID, DWORD, LPDWORD, LPOVERLAPPED); typedef void (WINAPI *GetAcceptExSockaddrsPtr)(PVOID, DWORD, DWORD, DWORD, LPSOCKADDR *, LPINT, LPSOCKADDR *, LPINT); /** Internal use only. Holds pointers to functions that only some versions of Windows provide. */ struct win32_extension_fns { AcceptExPtr AcceptEx; ConnectExPtr ConnectEx; GetAcceptExSockaddrsPtr GetAcceptExSockaddrs; }; /** Internal use only. Stores a Windows IO Completion port, along with related data. */ struct event_iocp_port { /** The port itself */ HANDLE port; /* A lock to cover internal structures. */ CRITICAL_SECTION lock; /** Number of threads ever open on the port. */ short n_threads; /** True iff we're shutting down all the threads on this port */ short shutdown; /** How often the threads on this port check for shutdown and other * conditions */ long ms; /* The threads that are waiting for events. */ HANDLE *threads; /** Number of threads currently open on this port. */ short n_live_threads; /** A semaphore to signal when we are done shutting down. */ HANDLE *shutdownSemaphore; }; const struct win32_extension_fns *event_get_win32_extension_fns(void); #else /* Dummy definition so we can test-compile more things on unix. */ struct event_overlapped { iocp_callback cb; }; #endif /** Initialize the fields in an event_overlapped. @param overlapped The struct event_overlapped to initialize @param cb The callback that should be invoked once the IO operation has finished. */ void event_overlapped_init(struct event_overlapped *, iocp_callback cb); /** Allocate and return a new evbuffer that supports overlapped IO on a given socket. The socket must be associated with an IO completion port using event_iocp_port_associate. */ struct evbuffer *evbuffer_overlapped_new(evutil_socket_t fd); /** XXXX Document (nickm) */ evutil_socket_t _evbuffer_overlapped_get_fd(struct evbuffer *buf); void _evbuffer_overlapped_set_fd(struct evbuffer *buf, evutil_socket_t fd); /** Start reading data onto the end of an overlapped evbuffer. An evbuffer can only have one read pending at a time. While the read is in progress, no other data may be added to the end of the buffer. The buffer must be created with event_overlapped_init(). evbuffer_commit_read() must be called in the completion callback. @param buf The buffer to read onto @param n The number of bytes to try to read. @param ol Overlapped object with associated completion callback. @return 0 on success, -1 on error. */ int evbuffer_launch_read(struct evbuffer *buf, size_t n, struct event_overlapped *ol); /** Start writing data from the start of an evbuffer. An evbuffer can only have one write pending at a time. While the write is in progress, no other data may be removed from the front of the buffer. The buffer must be created with event_overlapped_init(). evbuffer_commit_write() must be called in the completion callback. @param buf The buffer to read onto @param n The number of bytes to try to read. @param ol Overlapped object with associated completion callback. @return 0 on success, -1 on error. */ int evbuffer_launch_write(struct evbuffer *buf, ev_ssize_t n, struct event_overlapped *ol); /** XXX document */ void evbuffer_commit_read(struct evbuffer *, ev_ssize_t); void evbuffer_commit_write(struct evbuffer *, ev_ssize_t); /** Create an IOCP, and launch its worker threads. Internal use only. This interface is unstable, and will change. */ struct event_iocp_port *event_iocp_port_launch(int n_cpus); /** Associate a file descriptor with an iocp, such that overlapped IO on the fd will happen on one of the iocp's worker threads. */ int event_iocp_port_associate(struct event_iocp_port *port, evutil_socket_t fd, ev_uintptr_t key); /** Tell all threads serving an iocp to stop. Wait for up to waitMsec for all the threads to finish whatever they're doing. If waitMsec is -1, wait as long as required. If all the threads are done, free the port and return 0. Otherwise, return -1. If you get a -1 return value, it is safe to call this function again. */ int event_iocp_shutdown(struct event_iocp_port *port, long waitMsec); /* FIXME document. */ int event_iocp_activate_overlapped(struct event_iocp_port *port, struct event_overlapped *o, ev_uintptr_t key, ev_uint32_t n_bytes); struct event_base; /* FIXME document. */ struct event_iocp_port *event_base_get_iocp(struct event_base *base); /* FIXME document. */ int event_base_start_iocp(struct event_base *base, int n_cpus); void event_base_stop_iocp(struct event_base *base); /* FIXME document. */ struct bufferevent *bufferevent_async_new(struct event_base *base, evutil_socket_t fd, int options); /* FIXME document. */ void bufferevent_async_set_connected(struct bufferevent *bev); int bufferevent_async_can_connect(struct bufferevent *bev); int bufferevent_async_connect(struct bufferevent *bev, evutil_socket_t fd, const struct sockaddr *sa, int socklen); #ifdef __cplusplus } #endif #endif dnscrypt-proxy-1.9.4/src/libevent-modified/ipv6-internal.h000644 000765 000024 00000004655 13037731714 023212 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* Internal use only: Fake IPv6 structures and values on platforms that * do not have them */ #ifndef _EVENT_IPV6_INTERNAL_H #define _EVENT_IPV6_INTERNAL_H #include #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #include "event2/event-config.h" #include "event2/util.h" #ifdef __cplusplus extern "C" { #endif /** @file ipv6-internal.h * * Replacement types and functions for platforms that don't support ipv6 * properly. */ #ifndef _EVENT_HAVE_STRUCT_IN6_ADDR struct in6_addr { ev_uint8_t s6_addr[16]; }; #endif #ifndef _EVENT_HAVE_SA_FAMILY_T typedef int sa_family_t; #endif #ifndef _EVENT_HAVE_STRUCT_SOCKADDR_IN6 struct sockaddr_in6 { /* This will fail if we find a struct sockaddr that doesn't have * sa_family as the first element. */ sa_family_t sin6_family; ev_uint16_t sin6_port; struct in6_addr sin6_addr; }; #endif #ifndef AF_INET6 #define AF_INET6 3333 #endif #ifndef PF_INET6 #define PF_INET6 AF_INET6 #endif #ifdef __cplusplus } #endif #endif dnscrypt-proxy-1.9.4/src/libevent-modified/kqueue.c000644 000765 000024 00000027747 13037731714 022015 0ustar00jstaff000000 000000 /* $OpenBSD: kqueue.c,v 1.5 2002/07/10 14:41:31 art Exp $ */ /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #include #include #include #include #ifdef _EVENT_HAVE_INTTYPES_H #include #endif /* Some platforms apparently define the udata field of struct kevent as * intptr_t, whereas others define it as void*. There doesn't seem to be an * easy way to tell them apart via autoconf, so we need to use OS macros. */ #if defined(_EVENT_HAVE_INTTYPES_H) && !defined(__OpenBSD__) && !defined(__FreeBSD__) && !defined(__darwin__) && !defined(__APPLE__) #define PTR_TO_UDATA(x) ((intptr_t)(x)) #define INT_TO_UDATA(x) ((intptr_t)(x)) #else #define PTR_TO_UDATA(x) (x) #define INT_TO_UDATA(x) ((void*)(x)) #endif #include "event-internal.h" #include "log-internal.h" #include "evmap-internal.h" #include "event2/thread.h" #include "evthread-internal.h" #include "changelist-internal.h" #define NEVENT 64 struct kqop { struct kevent *changes; int changes_size; struct kevent *events; int events_size; int kq; pid_t pid; }; static void kqop_free(struct kqop *kqop); static void *kq_init(struct event_base *); static int kq_sig_add(struct event_base *, int, short, short, void *); static int kq_sig_del(struct event_base *, int, short, short, void *); static int kq_dispatch(struct event_base *, struct timeval *); static void kq_dealloc(struct event_base *); const struct eventop kqops = { "kqueue", kq_init, event_changelist_add, event_changelist_del, kq_dispatch, kq_dealloc, 1 /* need reinit */, EV_FEATURE_ET|EV_FEATURE_O1|EV_FEATURE_FDS, EVENT_CHANGELIST_FDINFO_SIZE }; static const struct eventop kqsigops = { "kqueue_signal", NULL, kq_sig_add, kq_sig_del, NULL, NULL, 1 /* need reinit */, 0, 0 }; static void * kq_init(struct event_base *base) { int kq = -1; struct kqop *kqueueop = NULL; if (!(kqueueop = mm_calloc(1, sizeof(struct kqop)))) return (NULL); /* Initialize the kernel queue */ if ((kq = kqueue()) == -1) { event_warn("kqueue"); goto err; } kqueueop->kq = kq; kqueueop->pid = getpid(); /* Initialize fields */ kqueueop->changes = mm_calloc(NEVENT, sizeof(struct kevent)); if (kqueueop->changes == NULL) goto err; kqueueop->events = mm_calloc(NEVENT, sizeof(struct kevent)); if (kqueueop->events == NULL) goto err; kqueueop->events_size = kqueueop->changes_size = NEVENT; /* Check for Mac OS X kqueue bug. */ memset(&kqueueop->changes[0], 0, sizeof kqueueop->changes[0]); kqueueop->changes[0].ident = -1; kqueueop->changes[0].filter = EVFILT_READ; kqueueop->changes[0].flags = EV_ADD; /* * If kqueue works, then kevent will succeed, and it will * stick an error in events[0]. If kqueue is broken, then * kevent will fail. */ if (kevent(kq, kqueueop->changes, 1, kqueueop->events, NEVENT, NULL) != 1 || (int)kqueueop->events[0].ident != -1 || !(kqueueop->events[0].flags & EV_ERROR)) { event_warn("%s: detected broken kqueue; not using.", __func__); goto err; } base->evsigsel = &kqsigops; return (kqueueop); err: if (kqueueop) kqop_free(kqueueop); return (NULL); } static void kq_sighandler(int sig) { /* Do nothing here */ } #define ADD_UDATA 0x30303 static void kq_setup_kevent(struct kevent *out, evutil_socket_t fd, int filter, short change) { memset(out, 0, sizeof(struct kevent)); out->ident = fd; out->filter = filter; if (change & EV_CHANGE_ADD) { out->flags = EV_ADD; /* We set a magic number here so that we can tell 'add' * errors from 'del' errors. */ out->udata = INT_TO_UDATA(ADD_UDATA); if (change & EV_ET) out->flags |= EV_CLEAR; #ifdef NOTE_EOF /* Make it behave like select() and poll() */ if (filter == EVFILT_READ) out->fflags = NOTE_EOF; #endif } else { EVUTIL_ASSERT(change & EV_CHANGE_DEL); out->flags = EV_DELETE; } } static int kq_build_changes_list(const struct event_changelist *changelist, struct kqop *kqop) { int i; int n_changes = 0; for (i = 0; i < changelist->n_changes; ++i) { struct event_change *in_ch = &changelist->changes[i]; struct kevent *out_ch; if (n_changes >= kqop->changes_size - 1) { int newsize = kqop->changes_size * 2; struct kevent *newchanges; newchanges = mm_realloc(kqop->changes, newsize * sizeof(struct kevent)); if (newchanges == NULL) { event_warn("%s: realloc", __func__); return (-1); } kqop->changes = newchanges; kqop->changes_size = newsize; } if (in_ch->read_change) { out_ch = &kqop->changes[n_changes++]; kq_setup_kevent(out_ch, in_ch->fd, EVFILT_READ, in_ch->read_change); } if (in_ch->write_change) { out_ch = &kqop->changes[n_changes++]; kq_setup_kevent(out_ch, in_ch->fd, EVFILT_WRITE, in_ch->write_change); } } return n_changes; } static int kq_grow_events(struct kqop *kqop, size_t new_size) { struct kevent *newresult; newresult = mm_realloc(kqop->events, new_size * sizeof(struct kevent)); if (newresult) { kqop->events = newresult; kqop->events_size = new_size; return 0; } else { return -1; } } static int kq_dispatch(struct event_base *base, struct timeval *tv) { struct kqop *kqop = base->evbase; struct kevent *events = kqop->events; struct kevent *changes; struct timespec ts, *ts_p = NULL; int i, n_changes, res; if (tv != NULL) { TIMEVAL_TO_TIMESPEC(tv, &ts); ts_p = &ts; } /* Build "changes" from "base->changes" */ EVUTIL_ASSERT(kqop->changes); n_changes = kq_build_changes_list(&base->changelist, kqop); if (n_changes < 0) return -1; event_changelist_remove_all(&base->changelist, base); /* steal the changes array in case some broken code tries to call * dispatch twice at once. */ changes = kqop->changes; kqop->changes = NULL; /* Make sure that 'events' is at least as long as the list of changes: * otherwise errors in the changes can get reported as a -1 return * value from kevent() rather than as EV_ERROR events in the events * array. * * (We could instead handle -1 return values from kevent() by * retrying with a smaller changes array or a larger events array, * but this approach seems less risky for now.) */ if (kqop->events_size < n_changes) { int new_size = kqop->events_size; do { new_size *= 2; } while (new_size < n_changes); kq_grow_events(kqop, new_size); events = kqop->events; } EVBASE_RELEASE_LOCK(base, th_base_lock); res = kevent(kqop->kq, changes, n_changes, events, kqop->events_size, ts_p); EVBASE_ACQUIRE_LOCK(base, th_base_lock); EVUTIL_ASSERT(kqop->changes == NULL); kqop->changes = changes; if (res == -1) { if (errno != EINTR) { event_warn("kevent"); return (-1); } return (0); } event_debug(("%s: kevent reports %d", __func__, res)); for (i = 0; i < res; i++) { int which = 0; if (events[i].flags & EV_ERROR) { switch (events[i].data) { /* Can occur on delete if we are not currently * watching any events on this fd. That can * happen when the fd was closed and another * file was opened with that fd. */ case ENOENT: /* Can occur for reasons not fully understood * on FreeBSD. */ case EINVAL: continue; /* Can occur on a delete if the fd is closed. */ case EBADF: /* XXXX On NetBSD, we can also get EBADF if we * try to add the write side of a pipe, but * the read side has already been closed. * Other BSDs call this situation 'EPIPE'. It * would be good if we had a way to report * this situation. */ continue; /* These two can occur on an add if the fd was one side * of a pipe, and the other side was closed. */ case EPERM: case EPIPE: /* Report read events, if we're listening for * them, so that the user can learn about any * add errors. (If the operation was a * delete, then udata should be cleared.) */ if (events[i].udata) { /* The operation was an add: * report the error as a read. */ which |= EV_READ; break; } else { /* The operation was a del: * report nothing. */ continue; } /* Other errors shouldn't occur. */ default: errno = events[i].data; return (-1); } } else if (events[i].filter == EVFILT_READ) { which |= EV_READ; } else if (events[i].filter == EVFILT_WRITE) { which |= EV_WRITE; } else if (events[i].filter == EVFILT_SIGNAL) { which |= EV_SIGNAL; } if (!which) continue; if (events[i].filter == EVFILT_SIGNAL) { evmap_signal_active(base, events[i].ident, 1); } else { evmap_io_active(base, events[i].ident, which | EV_ET); } } if (res == kqop->events_size) { /* We used all the events space that we have. Maybe we should make it bigger. */ kq_grow_events(kqop, kqop->events_size * 2); } return (0); } static void kqop_free(struct kqop *kqop) { if (kqop->changes) mm_free(kqop->changes); if (kqop->events) mm_free(kqop->events); if (kqop->kq >= 0 && kqop->pid == getpid()) close(kqop->kq); memset(kqop, 0, sizeof(struct kqop)); mm_free(kqop); } static void kq_dealloc(struct event_base *base) { struct kqop *kqop = base->evbase; evsig_dealloc(base); kqop_free(kqop); } /* signal handling */ static int kq_sig_add(struct event_base *base, int nsignal, short old, short events, void *p) { struct kqop *kqop = base->evbase; struct kevent kev; struct timespec timeout = { 0, 0 }; (void)p; EVUTIL_ASSERT(nsignal >= 0 && nsignal < NSIG); memset(&kev, 0, sizeof(kev)); kev.ident = nsignal; kev.filter = EVFILT_SIGNAL; kev.flags = EV_ADD; /* Be ready for the signal if it is sent any * time between now and the next call to * kq_dispatch. */ if (kevent(kqop->kq, &kev, 1, NULL, 0, &timeout) == -1) return (-1); /* XXXX The manpage suggest we could use SIG_IGN instead of a * do-nothing handler */ if (_evsig_set_handler(base, nsignal, kq_sighandler) == -1) return (-1); return (0); } static int kq_sig_del(struct event_base *base, int nsignal, short old, short events, void *p) { struct kqop *kqop = base->evbase; struct kevent kev; struct timespec timeout = { 0, 0 }; (void)p; EVUTIL_ASSERT(nsignal >= 0 && nsignal < NSIG); memset(&kev, 0, sizeof(kev)); kev.ident = nsignal; kev.filter = EVFILT_SIGNAL; kev.flags = EV_DELETE; /* Because we insert signal events * immediately, we need to delete them * immediately, too */ if (kevent(kqop->kq, &kev, 1, NULL, 0, &timeout) == -1) return (-1); if (_evsig_restore_handler(base, nsignal) == -1) return (-1); return (0); } dnscrypt-proxy-1.9.4/src/libevent-modified/libevent.pc.in000644 000765 000024 00000000475 13037731714 023100 0ustar00jstaff000000 000000 #libevent pkg-config source file prefix=@prefix@ exec_prefix=@exec_prefix@ libdir=@libdir@ includedir=@includedir@ Name: libevent Description: libevent is an asynchronous notification event loop library Version: @VERSION@ Requires: Conflicts: Libs: -L${libdir} -levent Libs.private: @LIBS@ Cflags: -I${includedir} dnscrypt-proxy-1.9.4/src/libevent-modified/libevent_core.pc.in000644 000765 000024 00000000431 13037731714 024100 0ustar00jstaff000000 000000 #libevent pkg-config source file prefix=@prefix@ exec_prefix=@exec_prefix@ libdir=@libdir@ includedir=@includedir@ Name: libevent_core Description: libevent_core Version: @VERSION@ Requires: Conflicts: Libs: -L${libdir} -levent_core Libs.private: @LIBS@ Cflags: -I${includedir} dnscrypt-proxy-1.9.4/src/libevent-modified/libevent_extra.pc.in000644 000765 000024 00000000434 13037731714 024276 0ustar00jstaff000000 000000 #libevent pkg-config source file prefix=@prefix@ exec_prefix=@exec_prefix@ libdir=@libdir@ includedir=@includedir@ Name: libevent_extra Description: libevent_extra Version: @VERSION@ Requires: Conflicts: Libs: -L${libdir} -levent_extra Libs.private: @LIBS@ Cflags: -I${includedir} dnscrypt-proxy-1.9.4/src/libevent-modified/libevent_openssl.pc.in000644 000765 000024 00000000545 13037731714 024641 0ustar00jstaff000000 000000 #libevent pkg-config source file prefix=@prefix@ exec_prefix=@exec_prefix@ libdir=@libdir@ includedir=@includedir@ Name: libevent_openssl Description: libevent_openssl adds openssl-based TLS support to libevent Version: @VERSION@ Requires: libevent Conflicts: Libs: -L${libdir} -levent_openssl Libs.private: @LIBS@ -lssl -lcrypto Cflags: -I${includedir} dnscrypt-proxy-1.9.4/src/libevent-modified/libevent_pthreads.pc.in000644 000765 000024 00000000600 13037731714 024760 0ustar00jstaff000000 000000 #libevent pkg-config source file prefix=@prefix@ exec_prefix=@exec_prefix@ libdir=@libdir@ includedir=@includedir@ Name: libevent_pthreads Description: libevent_pthreads adds pthreads-based threading support to libevent Version: @VERSION@ Requires: libevent Conflicts: Libs: -L${libdir} -levent_pthreads Libs.private: @LIBS@ @PTHREAD_LIBS@ Cflags: -I${includedir} @PTHREAD_CFLAGS@ dnscrypt-proxy-1.9.4/src/libevent-modified/LICENSE000644 000765 000024 00000006350 13037731714 021342 0ustar00jstaff000000 000000 Libevent is available for use under the following license, commonly known as the 3-clause (or "modified") BSD license: ============================== Copyright (c) 2000-2007 Niels Provos Copyright (c) 2007-2012 Niels Provos and Nick Mathewson Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ============================== Portions of Libevent are based on works by others, also made available by them under the three-clause BSD license above. The copyright notices are available in the corresponding source files; the license is as above. Here's a list: log.c: Copyright (c) 2000 Dug Song Copyright (c) 1993 The Regents of the University of California. strlcpy.c: Copyright (c) 1998 Todd C. Miller win32select.c: Copyright (c) 2003 Michael A. Davis evport.c: Copyright (c) 2007 Sun Microsystems ht-internal.h: Copyright (c) 2002 Christopher Clark minheap-internal.h: Copyright (c) 2006 Maxim Yegorushkin ============================== The arc4module is available under the following, sometimes called the "OpenBSD" license: Copyright (c) 1996, David Mazieres Copyright (c) 2008, Damien Miller Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. dnscrypt-proxy-1.9.4/src/libevent-modified/listener.c000644 000765 000024 00000051377 13037731714 022337 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos, Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include "event2/event-config.h" #ifdef WIN32 #ifndef _WIN32_WINNT /* Minimum required for InitializeCriticalSectionAndSpinCount */ #define _WIN32_WINNT 0x0403 #endif #include #include #include #endif #include #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #ifdef _EVENT_HAVE_FCNTL_H #include #endif #ifdef _EVENT_HAVE_UNISTD_H #include #endif #include "event2/listener.h" #include "event2/util.h" #include "event2/event.h" #include "event2/event_struct.h" #include "mm-internal.h" #include "util-internal.h" #include "log-internal.h" #include "evthread-internal.h" #ifdef WIN32 #include "iocp-internal.h" #include "defer-internal.h" #include "event-internal.h" #endif struct evconnlistener_ops { int (*enable)(struct evconnlistener *); int (*disable)(struct evconnlistener *); void (*destroy)(struct evconnlistener *); void (*shutdown)(struct evconnlistener *); evutil_socket_t (*getfd)(struct evconnlistener *); struct event_base *(*getbase)(struct evconnlistener *); }; struct evconnlistener { const struct evconnlistener_ops *ops; void *lock; evconnlistener_cb cb; evconnlistener_errorcb errorcb; void *user_data; unsigned flags; short refcnt; unsigned enabled : 1; }; struct evconnlistener_event { struct evconnlistener base; struct event listener; }; #ifdef WIN32 struct evconnlistener_iocp { struct evconnlistener base; evutil_socket_t fd; struct event_base *event_base; struct event_iocp_port *port; short n_accepting; unsigned shutting_down : 1; unsigned event_added : 1; struct accepting_socket **accepting; }; #endif #define LOCK(listener) EVLOCK_LOCK((listener)->lock, 0) #define UNLOCK(listener) EVLOCK_UNLOCK((listener)->lock, 0) struct evconnlistener * evconnlistener_new_async(struct event_base *base, evconnlistener_cb cb, void *ptr, unsigned flags, int backlog, evutil_socket_t fd); /* XXXX export this? */ static int event_listener_enable(struct evconnlistener *); static int event_listener_disable(struct evconnlistener *); static void event_listener_destroy(struct evconnlistener *); static evutil_socket_t event_listener_getfd(struct evconnlistener *); static struct event_base *event_listener_getbase(struct evconnlistener *); #if 0 static void listener_incref_and_lock(struct evconnlistener *listener) { LOCK(listener); ++listener->refcnt; } #endif static int listener_decref_and_unlock(struct evconnlistener *listener) { int refcnt = --listener->refcnt; if (refcnt == 0) { listener->ops->destroy(listener); UNLOCK(listener); EVTHREAD_FREE_LOCK(listener->lock, EVTHREAD_LOCKTYPE_RECURSIVE); mm_free(listener); return 1; } else { UNLOCK(listener); return 0; } } static const struct evconnlistener_ops evconnlistener_event_ops = { event_listener_enable, event_listener_disable, event_listener_destroy, NULL, /* shutdown */ event_listener_getfd, event_listener_getbase }; static void listener_read_cb(evutil_socket_t, short, void *); struct evconnlistener * evconnlistener_new(struct event_base *base, evconnlistener_cb cb, void *ptr, unsigned flags, int backlog, evutil_socket_t fd) { struct evconnlistener_event *lev; #ifdef WIN32 if (base && event_base_get_iocp(base)) { const struct win32_extension_fns *ext = event_get_win32_extension_fns(); if (ext->AcceptEx && ext->GetAcceptExSockaddrs) return evconnlistener_new_async(base, cb, ptr, flags, backlog, fd); } #endif if (backlog > 0) { if (listen(fd, backlog) < 0) return NULL; } else if (backlog < 0) { if (listen(fd, 128) < 0) return NULL; } lev = mm_calloc(1, sizeof(struct evconnlistener_event)); if (!lev) return NULL; lev->base.ops = &evconnlistener_event_ops; lev->base.cb = cb; lev->base.user_data = ptr; lev->base.flags = flags; lev->base.refcnt = 1; if (flags & LEV_OPT_THREADSAFE) { EVTHREAD_ALLOC_LOCK(lev->base.lock, EVTHREAD_LOCKTYPE_RECURSIVE); } event_assign(&lev->listener, base, fd, EV_READ|EV_PERSIST, listener_read_cb, lev); evconnlistener_enable(&lev->base); return &lev->base; } struct evconnlistener * evconnlistener_new_bind(struct event_base *base, evconnlistener_cb cb, void *ptr, unsigned flags, int backlog, const struct sockaddr *sa, int socklen) { struct evconnlistener *listener; evutil_socket_t fd; int on = 1; int family = sa ? sa->sa_family : AF_UNSPEC; if (backlog == 0) return NULL; fd = socket(family, SOCK_STREAM, 0); if (fd == -1) return NULL; if (evutil_make_socket_nonblocking(fd) < 0) { evutil_closesocket(fd); return NULL; } if (flags & LEV_OPT_CLOSE_ON_EXEC) { if (evutil_make_socket_closeonexec(fd) < 0) { evutil_closesocket(fd); return NULL; } } if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void*)&on, sizeof(on))<0) { evutil_closesocket(fd); return NULL; } if (flags & LEV_OPT_REUSEABLE) { if (evutil_make_listen_socket_reuseable(fd) < 0) { evutil_closesocket(fd); return NULL; } } if (flags & LEV_OPT_REUSEABLE_PORT) { if (evutil_make_listen_socket_reuseable_port(fd) < 0) return NULL; } if (sa) { if (bind(fd, sa, socklen)<0) { evutil_closesocket(fd); return NULL; } } listener = evconnlistener_new(base, cb, ptr, flags, backlog, fd); if (!listener) { evutil_closesocket(fd); return NULL; } return listener; } void evconnlistener_free(struct evconnlistener *lev) { LOCK(lev); lev->cb = NULL; lev->errorcb = NULL; if (lev->ops->shutdown) lev->ops->shutdown(lev); listener_decref_and_unlock(lev); } static void event_listener_destroy(struct evconnlistener *lev) { struct evconnlistener_event *lev_e = EVUTIL_UPCAST(lev, struct evconnlistener_event, base); event_del(&lev_e->listener); if (lev->flags & LEV_OPT_CLOSE_ON_FREE) evutil_closesocket(event_get_fd(&lev_e->listener)); event_debug_unassign(&lev_e->listener); } int evconnlistener_enable(struct evconnlistener *lev) { int r; LOCK(lev); lev->enabled = 1; if (lev->cb) r = lev->ops->enable(lev); else r = 0; UNLOCK(lev); return r; } int evconnlistener_disable(struct evconnlistener *lev) { int r; LOCK(lev); lev->enabled = 0; r = lev->ops->disable(lev); UNLOCK(lev); return r; } static int event_listener_enable(struct evconnlistener *lev) { struct evconnlistener_event *lev_e = EVUTIL_UPCAST(lev, struct evconnlistener_event, base); return event_add(&lev_e->listener, NULL); } static int event_listener_disable(struct evconnlistener *lev) { struct evconnlistener_event *lev_e = EVUTIL_UPCAST(lev, struct evconnlistener_event, base); return event_del(&lev_e->listener); } evutil_socket_t evconnlistener_get_fd(struct evconnlistener *lev) { evutil_socket_t fd; LOCK(lev); fd = lev->ops->getfd(lev); UNLOCK(lev); return fd; } static evutil_socket_t event_listener_getfd(struct evconnlistener *lev) { struct evconnlistener_event *lev_e = EVUTIL_UPCAST(lev, struct evconnlistener_event, base); return event_get_fd(&lev_e->listener); } struct event_base * evconnlistener_get_base(struct evconnlistener *lev) { struct event_base *base; LOCK(lev); base = lev->ops->getbase(lev); UNLOCK(lev); return base; } static struct event_base * event_listener_getbase(struct evconnlistener *lev) { struct evconnlistener_event *lev_e = EVUTIL_UPCAST(lev, struct evconnlistener_event, base); return event_get_base(&lev_e->listener); } void evconnlistener_set_cb(struct evconnlistener *lev, evconnlistener_cb cb, void *arg) { int enable = 0; LOCK(lev); if (lev->enabled && !lev->cb) enable = 1; lev->cb = cb; lev->user_data = arg; if (enable) evconnlistener_enable(lev); UNLOCK(lev); } void evconnlistener_set_error_cb(struct evconnlistener *lev, evconnlistener_errorcb errorcb) { LOCK(lev); lev->errorcb = errorcb; UNLOCK(lev); } static void listener_read_cb(evutil_socket_t fd, short what, void *p) { struct evconnlistener *lev = p; int err; evconnlistener_cb cb; evconnlistener_errorcb errorcb; void *user_data; LOCK(lev); while (1) { struct sockaddr_storage ss; #ifdef WIN32 int socklen = sizeof(ss); #else socklen_t socklen = sizeof(ss); #endif evutil_socket_t new_fd = accept(fd, (struct sockaddr*)&ss, &socklen); if (new_fd < 0) break; if (socklen == 0) { /* This can happen with some older linux kernels in * response to nmap. */ evutil_closesocket(new_fd); continue; } if (!(lev->flags & LEV_OPT_LEAVE_SOCKETS_BLOCKING)) evutil_make_socket_nonblocking(new_fd); if (lev->cb == NULL) { evutil_closesocket(new_fd); UNLOCK(lev); return; } ++lev->refcnt; cb = lev->cb; user_data = lev->user_data; UNLOCK(lev); cb(lev, new_fd, (struct sockaddr*)&ss, (int)socklen, user_data); LOCK(lev); if (lev->refcnt == 1) { int freed = listener_decref_and_unlock(lev); EVUTIL_ASSERT(freed); evutil_closesocket(new_fd); return; } --lev->refcnt; } err = evutil_socket_geterror(fd); if (EVUTIL_ERR_ACCEPT_RETRIABLE(err)) { UNLOCK(lev); return; } if (lev->errorcb != NULL) { ++lev->refcnt; errorcb = lev->errorcb; user_data = lev->user_data; UNLOCK(lev); errorcb(lev, user_data); LOCK(lev); listener_decref_and_unlock(lev); } else { event_sock_warn(fd, "Error from accept() call"); UNLOCK(lev); } } #ifdef WIN32 struct accepting_socket { CRITICAL_SECTION lock; struct event_overlapped overlapped; SOCKET s; int error; struct deferred_cb deferred; struct evconnlistener_iocp *lev; ev_uint8_t buflen; ev_uint8_t family; unsigned free_on_cb:1; char addrbuf[1]; }; static void accepted_socket_cb(struct event_overlapped *o, ev_uintptr_t key, ev_ssize_t n, int ok); static void accepted_socket_invoke_user_cb(struct deferred_cb *cb, void *arg); static void iocp_listener_event_add(struct evconnlistener_iocp *lev) { if (lev->event_added) return; lev->event_added = 1; event_base_add_virtual(lev->event_base); } static void iocp_listener_event_del(struct evconnlistener_iocp *lev) { if (!lev->event_added) return; lev->event_added = 0; event_base_del_virtual(lev->event_base); } static struct accepting_socket * new_accepting_socket(struct evconnlistener_iocp *lev, int family) { struct accepting_socket *res; int addrlen; int buflen; if (family == AF_INET) addrlen = sizeof(struct sockaddr_in); else if (family == AF_INET6) addrlen = sizeof(struct sockaddr_in6); else return NULL; buflen = (addrlen+16)*2; res = mm_calloc(1,sizeof(struct accepting_socket)-1+buflen); if (!res) return NULL; event_overlapped_init(&res->overlapped, accepted_socket_cb); res->s = INVALID_SOCKET; res->lev = lev; res->buflen = buflen; res->family = family; event_deferred_cb_init(&res->deferred, accepted_socket_invoke_user_cb, res); InitializeCriticalSectionAndSpinCount(&res->lock, 1000); return res; } static void free_and_unlock_accepting_socket(struct accepting_socket *as) { /* requires lock. */ if (as->s != INVALID_SOCKET) closesocket(as->s); LeaveCriticalSection(&as->lock); DeleteCriticalSection(&as->lock); mm_free(as); } static int start_accepting(struct accepting_socket *as) { /* requires lock */ const struct win32_extension_fns *ext = event_get_win32_extension_fns(); DWORD pending = 0; SOCKET s = socket(as->family, SOCK_STREAM, 0); int error = 0; if (!as->lev->base.enabled) return 0; if (s == INVALID_SOCKET) { error = WSAGetLastError(); goto report_err; } /* XXXX It turns out we need to do this again later. Does this call * have any effect? */ setsockopt(s, SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT, (char *)&as->lev->fd, sizeof(&as->lev->fd)); if (!(as->lev->base.flags & LEV_OPT_LEAVE_SOCKETS_BLOCKING)) evutil_make_socket_nonblocking(s); if (event_iocp_port_associate(as->lev->port, s, 1) < 0) { closesocket(s); return -1; } as->s = s; if (ext->AcceptEx(as->lev->fd, s, as->addrbuf, 0, as->buflen/2, as->buflen/2, &pending, &as->overlapped.overlapped)) { /* Immediate success! */ accepted_socket_cb(&as->overlapped, 1, 0, 1); } else { error = WSAGetLastError(); if (error != ERROR_IO_PENDING) { goto report_err; } } return 0; report_err: as->error = error; event_deferred_cb_schedule( event_base_get_deferred_cb_queue(as->lev->event_base), &as->deferred); return 0; } static void stop_accepting(struct accepting_socket *as) { /* requires lock. */ SOCKET s = as->s; as->s = INVALID_SOCKET; closesocket(s); } static void accepted_socket_invoke_user_cb(struct deferred_cb *dcb, void *arg) { struct accepting_socket *as = arg; struct sockaddr *sa_local=NULL, *sa_remote=NULL; int socklen_local=0, socklen_remote=0; const struct win32_extension_fns *ext = event_get_win32_extension_fns(); struct evconnlistener *lev = &as->lev->base; evutil_socket_t sock=-1; void *data; evconnlistener_cb cb=NULL; evconnlistener_errorcb errorcb=NULL; int error; EVUTIL_ASSERT(ext->GetAcceptExSockaddrs); LOCK(lev); EnterCriticalSection(&as->lock); if (as->free_on_cb) { free_and_unlock_accepting_socket(as); listener_decref_and_unlock(lev); return; } ++lev->refcnt; error = as->error; if (error) { as->error = 0; errorcb = lev->errorcb; } else { ext->GetAcceptExSockaddrs( as->addrbuf, 0, as->buflen/2, as->buflen/2, &sa_local, &socklen_local, &sa_remote, &socklen_remote); sock = as->s; cb = lev->cb; as->s = INVALID_SOCKET; /* We need to call this so getsockname, getpeername, and * shutdown work correctly on the accepted socket. */ /* XXXX handle error? */ setsockopt(sock, SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT, (char *)&as->lev->fd, sizeof(&as->lev->fd)); } data = lev->user_data; LeaveCriticalSection(&as->lock); UNLOCK(lev); if (errorcb) { WSASetLastError(error); errorcb(lev, data); } else if (cb) { cb(lev, sock, sa_remote, socklen_remote, data); } LOCK(lev); if (listener_decref_and_unlock(lev)) return; EnterCriticalSection(&as->lock); start_accepting(as); LeaveCriticalSection(&as->lock); } static void accepted_socket_cb(struct event_overlapped *o, ev_uintptr_t key, ev_ssize_t n, int ok) { struct accepting_socket *as = EVUTIL_UPCAST(o, struct accepting_socket, overlapped); LOCK(&as->lev->base); EnterCriticalSection(&as->lock); if (ok) { /* XXXX Don't do this if some EV_MT flag is set. */ event_deferred_cb_schedule( event_base_get_deferred_cb_queue(as->lev->event_base), &as->deferred); LeaveCriticalSection(&as->lock); } else if (as->free_on_cb) { struct evconnlistener *lev = &as->lev->base; free_and_unlock_accepting_socket(as); listener_decref_and_unlock(lev); return; } else if (as->s == INVALID_SOCKET) { /* This is okay; we were disabled by iocp_listener_disable. */ LeaveCriticalSection(&as->lock); } else { /* Some error on accept that we couldn't actually handle. */ BOOL ok; DWORD transfer = 0, flags=0; event_sock_warn(as->s, "Unexpected error on AcceptEx"); ok = WSAGetOverlappedResult(as->s, &o->overlapped, &transfer, FALSE, &flags); if (ok) { /* well, that was confusing! */ as->error = 1; } else { as->error = WSAGetLastError(); } event_deferred_cb_schedule( event_base_get_deferred_cb_queue(as->lev->event_base), &as->deferred); LeaveCriticalSection(&as->lock); } UNLOCK(&as->lev->base); } static int iocp_listener_enable(struct evconnlistener *lev) { int i; struct evconnlistener_iocp *lev_iocp = EVUTIL_UPCAST(lev, struct evconnlistener_iocp, base); LOCK(lev); iocp_listener_event_add(lev_iocp); for (i = 0; i < lev_iocp->n_accepting; ++i) { struct accepting_socket *as = lev_iocp->accepting[i]; if (!as) continue; EnterCriticalSection(&as->lock); if (!as->free_on_cb && as->s == INVALID_SOCKET) start_accepting(as); LeaveCriticalSection(&as->lock); } UNLOCK(lev); return 0; } static int iocp_listener_disable_impl(struct evconnlistener *lev, int shutdown) { int i; struct evconnlistener_iocp *lev_iocp = EVUTIL_UPCAST(lev, struct evconnlistener_iocp, base); LOCK(lev); iocp_listener_event_del(lev_iocp); for (i = 0; i < lev_iocp->n_accepting; ++i) { struct accepting_socket *as = lev_iocp->accepting[i]; if (!as) continue; EnterCriticalSection(&as->lock); if (!as->free_on_cb && as->s != INVALID_SOCKET) { if (shutdown) as->free_on_cb = 1; stop_accepting(as); } LeaveCriticalSection(&as->lock); } if (shutdown && lev->flags & LEV_OPT_CLOSE_ON_FREE) evutil_closesocket(lev_iocp->fd); UNLOCK(lev); return 0; } static int iocp_listener_disable(struct evconnlistener *lev) { return iocp_listener_disable_impl(lev,0); } static void iocp_listener_destroy(struct evconnlistener *lev) { struct evconnlistener_iocp *lev_iocp = EVUTIL_UPCAST(lev, struct evconnlistener_iocp, base); if (! lev_iocp->shutting_down) { lev_iocp->shutting_down = 1; iocp_listener_disable_impl(lev,1); } } static evutil_socket_t iocp_listener_getfd(struct evconnlistener *lev) { struct evconnlistener_iocp *lev_iocp = EVUTIL_UPCAST(lev, struct evconnlistener_iocp, base); return lev_iocp->fd; } static struct event_base * iocp_listener_getbase(struct evconnlistener *lev) { struct evconnlistener_iocp *lev_iocp = EVUTIL_UPCAST(lev, struct evconnlistener_iocp, base); return lev_iocp->event_base; } static const struct evconnlistener_ops evconnlistener_iocp_ops = { iocp_listener_enable, iocp_listener_disable, iocp_listener_destroy, iocp_listener_destroy, /* shutdown */ iocp_listener_getfd, iocp_listener_getbase }; /* XXX define some way to override this. */ #define N_SOCKETS_PER_LISTENER 4 struct evconnlistener * evconnlistener_new_async(struct event_base *base, evconnlistener_cb cb, void *ptr, unsigned flags, int backlog, evutil_socket_t fd) { struct sockaddr_storage ss; int socklen = sizeof(ss); struct evconnlistener_iocp *lev; int i; flags |= LEV_OPT_THREADSAFE; if (!base || !event_base_get_iocp(base)) goto err; /* XXXX duplicate code */ if (backlog > 0) { if (listen(fd, backlog) < 0) goto err; } else if (backlog < 0) { if (listen(fd, 128) < 0) goto err; } if (getsockname(fd, (struct sockaddr*)&ss, &socklen)) { event_sock_warn(fd, "getsockname"); goto err; } lev = mm_calloc(1, sizeof(struct evconnlistener_iocp)); if (!lev) { event_warn("calloc"); goto err; } lev->base.ops = &evconnlistener_iocp_ops; lev->base.cb = cb; lev->base.user_data = ptr; lev->base.flags = flags; lev->base.refcnt = 1; lev->base.enabled = 1; lev->port = event_base_get_iocp(base); lev->fd = fd; lev->event_base = base; if (event_iocp_port_associate(lev->port, fd, 1) < 0) goto err_free_lev; EVTHREAD_ALLOC_LOCK(lev->base.lock, EVTHREAD_LOCKTYPE_RECURSIVE); lev->n_accepting = N_SOCKETS_PER_LISTENER; lev->accepting = mm_calloc(lev->n_accepting, sizeof(struct accepting_socket *)); if (!lev->accepting) { event_warn("calloc"); goto err_delete_lock; } for (i = 0; i < lev->n_accepting; ++i) { lev->accepting[i] = new_accepting_socket(lev, ss.ss_family); if (!lev->accepting[i]) { event_warnx("Couldn't create accepting socket"); goto err_free_accepting; } if (cb && start_accepting(lev->accepting[i]) < 0) { event_warnx("Couldn't start accepting on socket"); EnterCriticalSection(&lev->accepting[i]->lock); free_and_unlock_accepting_socket(lev->accepting[i]); goto err_free_accepting; } ++lev->base.refcnt; } iocp_listener_event_add(lev); return &lev->base; err_free_accepting: mm_free(lev->accepting); /* XXXX free the other elements. */ err_delete_lock: EVTHREAD_FREE_LOCK(lev->base.lock, EVTHREAD_LOCKTYPE_RECURSIVE); err_free_lev: mm_free(lev); err: /* Don't close the fd, it is caller's responsibility. */ return NULL; } #endif dnscrypt-proxy-1.9.4/src/libevent-modified/log-internal.h000644 000765 000024 00000004752 13037731714 023105 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _LOG_H_ #define _LOG_H_ #include "event2/util.h" #ifdef __GNUC__ #define EV_CHECK_FMT(a,b) __attribute__((format(printf, a, b))) #define EV_NORETURN __attribute__((noreturn)) #else #define EV_CHECK_FMT(a,b) #define EV_NORETURN #endif #define _EVENT_ERR_ABORT ((int)0xdeaddead) void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN; void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2); void event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(3,4) EV_NORETURN; void event_sock_warn(evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(2,3); void event_errx(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN; void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2); void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2); void _event_debugx(const char *fmt, ...) EV_CHECK_FMT(1,2); #ifdef USE_DEBUG #define event_debug(x) _event_debugx x #else #define event_debug(x) do {;} while (0) #endif #undef EV_CHECK_FMT #endif dnscrypt-proxy-1.9.4/src/libevent-modified/log.c000644 000765 000024 00000011753 13037731714 021265 0ustar00jstaff000000 000000 /* $OpenBSD: err.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */ /* * log.c * * Based on err.c, which was adapted from OpenBSD libc *err* *warn* code. * * Copyright (c) 2005-2012 Niels Provos and Nick Mathewson * * Copyright (c) 2000 Dug Song * * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef WIN32 #include #define WIN32_LEAN_AND_MEAN #include #undef WIN32_LEAN_AND_MEAN #endif #include #include #include #include #include #include #include "event2/event.h" #include "event2/util.h" #include "log-internal.h" static void _warn_helper(int severity, const char *errstr, const char *fmt, va_list ap); static void event_log(int severity, const char *msg); static void event_exit(int errcode) EV_NORETURN; static event_fatal_cb fatal_fn = NULL; void event_set_fatal_callback(event_fatal_cb cb) { fatal_fn = cb; } static void event_exit(int errcode) { if (fatal_fn) { fatal_fn(errcode); exit(errcode); /* should never be reached */ } else if (errcode == _EVENT_ERR_ABORT) abort(); else exit(errcode); } void event_err(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); _warn_helper(_EVENT_LOG_ERR, strerror(errno), fmt, ap); va_end(ap); event_exit(eval); } void event_warn(const char *fmt, ...) { va_list ap; va_start(ap, fmt); _warn_helper(_EVENT_LOG_WARN, strerror(errno), fmt, ap); va_end(ap); } void event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...) { va_list ap; int err = evutil_socket_geterror(sock); va_start(ap, fmt); _warn_helper(_EVENT_LOG_ERR, evutil_socket_error_to_string(err), fmt, ap); va_end(ap); event_exit(eval); } void event_sock_warn(evutil_socket_t sock, const char *fmt, ...) { va_list ap; int err = evutil_socket_geterror(sock); va_start(ap, fmt); _warn_helper(_EVENT_LOG_WARN, evutil_socket_error_to_string(err), fmt, ap); va_end(ap); } void event_errx(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); _warn_helper(_EVENT_LOG_ERR, NULL, fmt, ap); va_end(ap); event_exit(eval); } void event_warnx(const char *fmt, ...) { va_list ap; va_start(ap, fmt); _warn_helper(_EVENT_LOG_WARN, NULL, fmt, ap); va_end(ap); } void event_msgx(const char *fmt, ...) { va_list ap; va_start(ap, fmt); _warn_helper(_EVENT_LOG_MSG, NULL, fmt, ap); va_end(ap); } void _event_debugx(const char *fmt, ...) { va_list ap; va_start(ap, fmt); _warn_helper(_EVENT_LOG_DEBUG, NULL, fmt, ap); va_end(ap); } static void _warn_helper(int severity, const char *errstr, const char *fmt, va_list ap) { char buf[1024]; size_t len; if (fmt != NULL) evutil_vsnprintf(buf, sizeof(buf), fmt, ap); else buf[0] = '\0'; if (errstr) { len = strlen(buf); if (len < sizeof(buf) - 3) { evutil_snprintf(buf + len, sizeof(buf) - len, ": %s", errstr); } } event_log(severity, buf); } static event_log_cb log_fn = NULL; void event_set_log_callback(event_log_cb cb) { log_fn = cb; } static void event_log(int severity, const char *msg) { if (log_fn) log_fn(severity, msg); else { const char *severity_str; switch (severity) { case _EVENT_LOG_DEBUG: severity_str = "debug"; break; case _EVENT_LOG_MSG: severity_str = "msg"; break; case _EVENT_LOG_WARN: severity_str = "warn"; break; case _EVENT_LOG_ERR: severity_str = "err"; break; default: severity_str = "???"; break; } (void)fprintf(stderr, "[%s] %s\n", severity_str, msg); } } dnscrypt-proxy-1.9.4/src/libevent-modified/ltmain.sh000644 000765 000024 00001170771 13040635253 022162 0ustar00jstaff000000 000000 #! /bin/sh ## DO NOT EDIT - This file generated from ./build-aux/ltmain.in ## by inline-source v2014-01-03.01 # libtool (GNU libtool) 2.4.6 # Provide generalized library-building support services. # Written by Gordon Matzigkeit , 1996 # Copyright (C) 1996-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # GNU Libtool is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # As a special exception to the GNU General Public License, # if you distribute this file as part of a program or library that # is built using GNU Libtool, you may include this file under the # same distribution terms that you use for the rest of that program. # # GNU Libtool is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . PROGRAM=libtool PACKAGE=libtool VERSION=2.4.6 package_revision=2.4.6 ## ------ ## ## Usage. ## ## ------ ## # Run './libtool --help' for help with using this script from the # command line. ## ------------------------------- ## ## User overridable command paths. ## ## ------------------------------- ## # After configure completes, it has a better idea of some of the # shell tools we need than the defaults used by the functions shared # with bootstrap, so set those here where they can still be over- # ridden by the user, but otherwise take precedence. : ${AUTOCONF="autoconf"} : ${AUTOMAKE="automake"} ## -------------------------- ## ## Source external libraries. ## ## -------------------------- ## # Much of our low-level functionality needs to be sourced from external # libraries, which are installed to $pkgauxdir. # Set a version string for this script. scriptversion=2015-01-20.17; # UTC # General shell script boiler plate, and helper functions. # Written by Gary V. Vaughan, 2004 # Copyright (C) 2004-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # As a special exception to the GNU General Public License, if you distribute # this file as part of a program or library that is built using GNU Libtool, # you may include this file under the same distribution terms that you use # for the rest of that program. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # Please report bugs or propose patches to gary@gnu.org. ## ------ ## ## Usage. ## ## ------ ## # Evaluate this file near the top of your script to gain access to # the functions and variables defined here: # # . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh # # If you need to override any of the default environment variable # settings, do that before evaluating this file. ## -------------------- ## ## Shell normalisation. ## ## -------------------- ## # Some shells need a little help to be as Bourne compatible as possible. # Before doing anything else, make sure all that help has been provided! DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$@"}'='"$@"' setopt NO_GLOB_SUBST else case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac fi # NLS nuisances: We save the old values in case they are required later. _G_user_locale= _G_safe_locale= for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES do eval "if test set = \"\${$_G_var+set}\"; then save_$_G_var=\$$_G_var $_G_var=C export $_G_var _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\" _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\" fi" done # CDPATH. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH # Make sure IFS has a sensible default sp=' ' nl=' ' IFS="$sp $nl" # There are apparently some retarded systems that use ';' as a PATH separator! if test "${PATH_SEPARATOR+set}" != set; then PATH_SEPARATOR=: (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || PATH_SEPARATOR=';' } fi ## ------------------------- ## ## Locate command utilities. ## ## ------------------------- ## # func_executable_p FILE # ---------------------- # Check that FILE is an executable regular file. func_executable_p () { test -f "$1" && test -x "$1" } # func_path_progs PROGS_LIST CHECK_FUNC [PATH] # -------------------------------------------- # Search for either a program that responds to --version with output # containing "GNU", or else returned by CHECK_FUNC otherwise, by # trying all the directories in PATH with each of the elements of # PROGS_LIST. # # CHECK_FUNC should accept the path to a candidate program, and # set $func_check_prog_result if it truncates its output less than # $_G_path_prog_max characters. func_path_progs () { _G_progs_list=$1 _G_check_func=$2 _G_PATH=${3-"$PATH"} _G_path_prog_max=0 _G_path_prog_found=false _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:} for _G_dir in $_G_PATH; do IFS=$_G_save_IFS test -z "$_G_dir" && _G_dir=. for _G_prog_name in $_G_progs_list; do for _exeext in '' .EXE; do _G_path_prog=$_G_dir/$_G_prog_name$_exeext func_executable_p "$_G_path_prog" || continue case `"$_G_path_prog" --version 2>&1` in *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;; *) $_G_check_func $_G_path_prog func_path_progs_result=$func_check_prog_result ;; esac $_G_path_prog_found && break 3 done done done IFS=$_G_save_IFS test -z "$func_path_progs_result" && { echo "no acceptable sed could be found in \$PATH" >&2 exit 1 } } # We want to be able to use the functions in this file before configure # has figured out where the best binaries are kept, which means we have # to search for them ourselves - except when the results are already set # where we skip the searches. # Unless the user overrides by setting SED, search the path for either GNU # sed, or the sed that truncates its output the least. test -z "$SED" && { _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ for _G_i in 1 2 3 4 5 6 7; do _G_sed_script=$_G_sed_script$nl$_G_sed_script done echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed _G_sed_script= func_check_prog_sed () { _G_path_prog=$1 _G_count=0 printf 0123456789 >conftest.in while : do cat conftest.in conftest.in >conftest.tmp mv conftest.tmp conftest.in cp conftest.in conftest.nl echo '' >> conftest.nl "$_G_path_prog" -f conftest.sed conftest.out 2>/dev/null || break diff conftest.out conftest.nl >/dev/null 2>&1 || break _G_count=`expr $_G_count + 1` if test "$_G_count" -gt "$_G_path_prog_max"; then # Best one so far, save it but keep looking for a better one func_check_prog_result=$_G_path_prog _G_path_prog_max=$_G_count fi # 10*(2^10) chars as input seems more than enough test 10 -lt "$_G_count" && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out } func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin rm -f conftest.sed SED=$func_path_progs_result } # Unless the user overrides by setting GREP, search the path for either GNU # grep, or the grep that truncates its output the least. test -z "$GREP" && { func_check_prog_grep () { _G_path_prog=$1 _G_count=0 _G_path_prog_max=0 printf 0123456789 >conftest.in while : do cat conftest.in conftest.in >conftest.tmp mv conftest.tmp conftest.in cp conftest.in conftest.nl echo 'GREP' >> conftest.nl "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' conftest.out 2>/dev/null || break diff conftest.out conftest.nl >/dev/null 2>&1 || break _G_count=`expr $_G_count + 1` if test "$_G_count" -gt "$_G_path_prog_max"; then # Best one so far, save it but keep looking for a better one func_check_prog_result=$_G_path_prog _G_path_prog_max=$_G_count fi # 10*(2^10) chars as input seems more than enough test 10 -lt "$_G_count" && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out } func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin GREP=$func_path_progs_result } ## ------------------------------- ## ## User overridable command paths. ## ## ------------------------------- ## # All uppercase variable names are used for environment variables. These # variables can be overridden by the user before calling a script that # uses them if a suitable command of that name is not already available # in the command search PATH. : ${CP="cp -f"} : ${ECHO="printf %s\n"} : ${EGREP="$GREP -E"} : ${FGREP="$GREP -F"} : ${LN_S="ln -s"} : ${MAKE="make"} : ${MKDIR="mkdir"} : ${MV="mv -f"} : ${RM="rm -f"} : ${SHELL="${CONFIG_SHELL-/bin/sh}"} ## -------------------- ## ## Useful sed snippets. ## ## -------------------- ## sed_dirname='s|/[^/]*$||' sed_basename='s|^.*/||' # Sed substitution that helps us do robust quoting. It backslashifies # metacharacters that are still active within double-quoted strings. sed_quote_subst='s|\([`"$\\]\)|\\\1|g' # Same as above, but do not quote variable references. sed_double_quote_subst='s/\(["`\\]\)/\\\1/g' # Sed substitution that turns a string into a regex matching for the # string literally. sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g' # Sed substitution that converts a w32 file name or path # that contains forward slashes, into one that contains # (escaped) backslashes. A very naive implementation. sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' # Re-'\' parameter expansions in output of sed_double_quote_subst that # were '\'-ed in input to the same. If an odd number of '\' preceded a # '$' in input to sed_double_quote_subst, that '$' was protected from # expansion. Since each input '\' is now two '\'s, look for any number # of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'. _G_bs='\\' _G_bs2='\\\\' _G_bs4='\\\\\\\\' _G_dollar='\$' sed_double_backslash="\ s/$_G_bs4/&\\ /g s/^$_G_bs2$_G_dollar/$_G_bs&/ s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g s/\n//g" ## ----------------- ## ## Global variables. ## ## ----------------- ## # Except for the global variables explicitly listed below, the following # functions in the '^func_' namespace, and the '^require_' namespace # variables initialised in the 'Resource management' section, sourcing # this file will not pollute your global namespace with anything # else. There's no portable way to scope variables in Bourne shell # though, so actually running these functions will sometimes place # results into a variable named after the function, and often use # temporary variables in the '^_G_' namespace. If you are careful to # avoid using those namespaces casually in your sourcing script, things # should continue to work as you expect. And, of course, you can freely # overwrite any of the functions or variables defined here before # calling anything to customize them. EXIT_SUCCESS=0 EXIT_FAILURE=1 EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. # Allow overriding, eg assuming that you follow the convention of # putting '$debug_cmd' at the start of all your functions, you can get # bash to show function call trace with: # # debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name debug_cmd=${debug_cmd-":"} exit_cmd=: # By convention, finish your script with: # # exit $exit_status # # so that you can set exit_status to non-zero if you want to indicate # something went wrong during execution without actually bailing out at # the point of failure. exit_status=$EXIT_SUCCESS # Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh # is ksh but when the shell is invoked as "sh" and the current value of # the _XPG environment variable is not equal to 1 (one), the special # positional parameter $0, within a function call, is the name of the # function. progpath=$0 # The name of this program. progname=`$ECHO "$progpath" |$SED "$sed_basename"` # Make sure we have an absolute progpath for reexecution: case $progpath in [\\/]*|[A-Za-z]:\\*) ;; *[\\/]*) progdir=`$ECHO "$progpath" |$SED "$sed_dirname"` progdir=`cd "$progdir" && pwd` progpath=$progdir/$progname ;; *) _G_IFS=$IFS IFS=${PATH_SEPARATOR-:} for progdir in $PATH; do IFS=$_G_IFS test -x "$progdir/$progname" && break done IFS=$_G_IFS test -n "$progdir" || progdir=`pwd` progpath=$progdir/$progname ;; esac ## ----------------- ## ## Standard options. ## ## ----------------- ## # The following options affect the operation of the functions defined # below, and should be set appropriately depending on run-time para- # meters passed on the command line. opt_dry_run=false opt_quiet=false opt_verbose=false # Categories 'all' and 'none' are always available. Append any others # you will pass as the first argument to func_warning from your own # code. warning_categories= # By default, display warnings according to 'opt_warning_types'. Set # 'warning_func' to ':' to elide all warnings, or func_fatal_error to # treat the next displayed warning as a fatal error. warning_func=func_warn_and_continue # Set to 'all' to display all warnings, 'none' to suppress all # warnings, or a space delimited list of some subset of # 'warning_categories' to display only the listed warnings. opt_warning_types=all ## -------------------- ## ## Resource management. ## ## -------------------- ## # This section contains definitions for functions that each ensure a # particular resource (a file, or a non-empty configuration variable for # example) is available, and if appropriate to extract default values # from pertinent package files. Call them using their associated # 'require_*' variable to ensure that they are executed, at most, once. # # It's entirely deliberate that calling these functions can set # variables that don't obey the namespace limitations obeyed by the rest # of this file, in order that that they be as useful as possible to # callers. # require_term_colors # ------------------- # Allow display of bold text on terminals that support it. require_term_colors=func_require_term_colors func_require_term_colors () { $debug_cmd test -t 1 && { # COLORTERM and USE_ANSI_COLORS environment variables take # precedence, because most terminfo databases neglect to describe # whether color sequences are supported. test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} if test 1 = "$USE_ANSI_COLORS"; then # Standard ANSI escape sequences tc_reset='' tc_bold=''; tc_standout='' tc_red=''; tc_green='' tc_blue=''; tc_cyan='' else # Otherwise trust the terminfo database after all. test -n "`tput sgr0 2>/dev/null`" && { tc_reset=`tput sgr0` test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` tc_standout=$tc_bold test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` } fi } require_term_colors=: } ## ----------------- ## ## Function library. ## ## ----------------- ## # This section contains a variety of useful functions to call in your # scripts. Take note of the portable wrappers for features provided by # some modern shells, which will fall back to slower equivalents on # less featureful shells. # func_append VAR VALUE # --------------------- # Append VALUE onto the existing contents of VAR. # We should try to minimise forks, especially on Windows where they are # unreasonably slow, so skip the feature probes when bash or zsh are # being used: if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then : ${_G_HAVE_ARITH_OP="yes"} : ${_G_HAVE_XSI_OPS="yes"} # The += operator was introduced in bash 3.1 case $BASH_VERSION in [12].* | 3.0 | 3.0*) ;; *) : ${_G_HAVE_PLUSEQ_OP="yes"} ;; esac fi # _G_HAVE_PLUSEQ_OP # Can be empty, in which case the shell is probed, "yes" if += is # useable or anything else if it does not work. test -z "$_G_HAVE_PLUSEQ_OP" \ && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \ && _G_HAVE_PLUSEQ_OP=yes if test yes = "$_G_HAVE_PLUSEQ_OP" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_append () { $debug_cmd eval "$1+=\$2" }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_append () { $debug_cmd eval "$1=\$$1\$2" } fi # func_append_quoted VAR VALUE # ---------------------------- # Quote VALUE and append to the end of shell variable VAR, separated # by a space. if test yes = "$_G_HAVE_PLUSEQ_OP"; then eval 'func_append_quoted () { $debug_cmd func_quote_for_eval "$2" eval "$1+=\\ \$func_quote_for_eval_result" }' else func_append_quoted () { $debug_cmd func_quote_for_eval "$2" eval "$1=\$$1\\ \$func_quote_for_eval_result" } fi # func_append_uniq VAR VALUE # -------------------------- # Append unique VALUE onto the existing contents of VAR, assuming # entries are delimited by the first character of VALUE. For example: # # func_append_uniq options " --another-option option-argument" # # will only append to $options if " --another-option option-argument " # is not already present somewhere in $options already (note spaces at # each end implied by leading space in second argument). func_append_uniq () { $debug_cmd eval _G_current_value='`$ECHO $'$1'`' _G_delim=`expr "$2" : '\(.\)'` case $_G_delim$_G_current_value$_G_delim in *"$2$_G_delim"*) ;; *) func_append "$@" ;; esac } # func_arith TERM... # ------------------ # Set func_arith_result to the result of evaluating TERMs. test -z "$_G_HAVE_ARITH_OP" \ && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \ && _G_HAVE_ARITH_OP=yes if test yes = "$_G_HAVE_ARITH_OP"; then eval 'func_arith () { $debug_cmd func_arith_result=$(( $* )) }' else func_arith () { $debug_cmd func_arith_result=`expr "$@"` } fi # func_basename FILE # ------------------ # Set func_basename_result to FILE with everything up to and including # the last / stripped. if test yes = "$_G_HAVE_XSI_OPS"; then # If this shell supports suffix pattern removal, then use it to avoid # forking. Hide the definitions single quotes in case the shell chokes # on unsupported syntax... _b='func_basename_result=${1##*/}' _d='case $1 in */*) func_dirname_result=${1%/*}$2 ;; * ) func_dirname_result=$3 ;; esac' else # ...otherwise fall back to using sed. _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`' _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"` if test "X$func_dirname_result" = "X$1"; then func_dirname_result=$3 else func_append func_dirname_result "$2" fi' fi eval 'func_basename () { $debug_cmd '"$_b"' }' # func_dirname FILE APPEND NONDIR_REPLACEMENT # ------------------------------------------- # Compute the dirname of FILE. If nonempty, add APPEND to the result, # otherwise set result to NONDIR_REPLACEMENT. eval 'func_dirname () { $debug_cmd '"$_d"' }' # func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT # -------------------------------------------------------- # Perform func_basename and func_dirname in a single function # call: # dirname: Compute the dirname of FILE. If nonempty, # add APPEND to the result, otherwise set result # to NONDIR_REPLACEMENT. # value returned in "$func_dirname_result" # basename: Compute filename of FILE. # value retuned in "$func_basename_result" # For efficiency, we do not delegate to the functions above but instead # duplicate the functionality here. eval 'func_dirname_and_basename () { $debug_cmd '"$_b"' '"$_d"' }' # func_echo ARG... # ---------------- # Echo program name prefixed message. func_echo () { $debug_cmd _G_message=$* func_echo_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_IFS $ECHO "$progname: $_G_line" done IFS=$func_echo_IFS } # func_echo_all ARG... # -------------------- # Invoke $ECHO with all args, space-separated. func_echo_all () { $ECHO "$*" } # func_echo_infix_1 INFIX ARG... # ------------------------------ # Echo program name, followed by INFIX on the first line, with any # additional lines not showing INFIX. func_echo_infix_1 () { $debug_cmd $require_term_colors _G_infix=$1; shift _G_indent=$_G_infix _G_prefix="$progname: $_G_infix: " _G_message=$* # Strip color escape sequences before counting printable length for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan" do test -n "$_G_tc" && { _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"` _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"` } done _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes func_echo_infix_1_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_infix_1_IFS $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2 _G_prefix=$_G_indent done IFS=$func_echo_infix_1_IFS } # func_error ARG... # ----------------- # Echo program name prefixed message to standard error. func_error () { $debug_cmd $require_term_colors func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2 } # func_fatal_error ARG... # ----------------------- # Echo program name prefixed message to standard error, and exit. func_fatal_error () { $debug_cmd func_error "$*" exit $EXIT_FAILURE } # func_grep EXPRESSION FILENAME # ----------------------------- # Check whether EXPRESSION matches any line of FILENAME, without output. func_grep () { $debug_cmd $GREP "$1" "$2" >/dev/null 2>&1 } # func_len STRING # --------------- # Set func_len_result to the length of STRING. STRING may not # start with a hyphen. test -z "$_G_HAVE_XSI_OPS" \ && (eval 'x=a/b/c; test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ && _G_HAVE_XSI_OPS=yes if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_len () { $debug_cmd func_len_result=${#1} }' else func_len () { $debug_cmd func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` } fi # func_mkdir_p DIRECTORY-PATH # --------------------------- # Make sure the entire path to DIRECTORY-PATH is available. func_mkdir_p () { $debug_cmd _G_directory_path=$1 _G_dir_list= if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then # Protect directory names starting with '-' case $_G_directory_path in -*) _G_directory_path=./$_G_directory_path ;; esac # While some portion of DIR does not yet exist... while test ! -d "$_G_directory_path"; do # ...make a list in topmost first order. Use a colon delimited # list incase some portion of path contains whitespace. _G_dir_list=$_G_directory_path:$_G_dir_list # If the last portion added has no slash in it, the list is done case $_G_directory_path in */*) ;; *) break ;; esac # ...otherwise throw away the child directory and loop _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` done _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` func_mkdir_p_IFS=$IFS; IFS=: for _G_dir in $_G_dir_list; do IFS=$func_mkdir_p_IFS # mkdir can fail with a 'File exist' error if two processes # try to create one of the directories concurrently. Don't # stop in that case! $MKDIR "$_G_dir" 2>/dev/null || : done IFS=$func_mkdir_p_IFS # Bail out if we (or some other process) failed to create a directory. test -d "$_G_directory_path" || \ func_fatal_error "Failed to create '$1'" fi } # func_mktempdir [BASENAME] # ------------------------- # Make a temporary directory that won't clash with other running # libtool processes, and avoids race conditions if possible. If # given, BASENAME is the basename for that directory. func_mktempdir () { $debug_cmd _G_template=${TMPDIR-/tmp}/${1-$progname} if test : = "$opt_dry_run"; then # Return a directory name, but don't create it in dry-run mode _G_tmpdir=$_G_template-$$ else # If mktemp works, use that first and foremost _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` if test ! -d "$_G_tmpdir"; then # Failing that, at least try and use $RANDOM to avoid a race _G_tmpdir=$_G_template-${RANDOM-0}$$ func_mktempdir_umask=`umask` umask 0077 $MKDIR "$_G_tmpdir" umask $func_mktempdir_umask fi # If we're not in dry-run mode, bomb out on failure test -d "$_G_tmpdir" || \ func_fatal_error "cannot create temporary directory '$_G_tmpdir'" fi $ECHO "$_G_tmpdir" } # func_normal_abspath PATH # ------------------------ # Remove doubled-up and trailing slashes, "." path components, # and cancel out any ".." path components in PATH after making # it an absolute path. func_normal_abspath () { $debug_cmd # These SED scripts presuppose an absolute path with a trailing slash. _G_pathcar='s|^/\([^/]*\).*$|\1|' _G_pathcdr='s|^/[^/]*||' _G_removedotparts=':dotsl s|/\./|/|g t dotsl s|/\.$|/|' _G_collapseslashes='s|/\{1,\}|/|g' _G_finalslash='s|/*$|/|' # Start from root dir and reassemble the path. func_normal_abspath_result= func_normal_abspath_tpath=$1 func_normal_abspath_altnamespace= case $func_normal_abspath_tpath in "") # Empty path, that just means $cwd. func_stripname '' '/' "`pwd`" func_normal_abspath_result=$func_stripname_result return ;; # The next three entries are used to spot a run of precisely # two leading slashes without using negated character classes; # we take advantage of case's first-match behaviour. ///*) # Unusual form of absolute path, do nothing. ;; //*) # Not necessarily an ordinary path; POSIX reserves leading '//' # and for example Cygwin uses it to access remote file shares # over CIFS/SMB, so we conserve a leading double slash if found. func_normal_abspath_altnamespace=/ ;; /*) # Absolute path, do nothing. ;; *) # Relative path, prepend $cwd. func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath ;; esac # Cancel out all the simple stuff to save iterations. We also want # the path to end with a slash for ease of parsing, so make sure # there is one (and only one) here. func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` while :; do # Processed it all yet? if test / = "$func_normal_abspath_tpath"; then # If we ascended to the root using ".." the result may be empty now. if test -z "$func_normal_abspath_result"; then func_normal_abspath_result=/ fi break fi func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_pathcar"` func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_pathcdr"` # Figure out what to do with it case $func_normal_abspath_tcomponent in "") # Trailing empty path component, ignore it. ;; ..) # Parent dir; strip last assembled component from result. func_dirname "$func_normal_abspath_result" func_normal_abspath_result=$func_dirname_result ;; *) # Actual path component, append it. func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" ;; esac done # Restore leading double-slash if one was found on entry. func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result } # func_notquiet ARG... # -------------------- # Echo program name prefixed message only when not in quiet mode. func_notquiet () { $debug_cmd $opt_quiet || func_echo ${1+"$@"} # A bug in bash halts the script if the last line of a function # fails when set -e is in force, so we need another command to # work around that: : } # func_relative_path SRCDIR DSTDIR # -------------------------------- # Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. func_relative_path () { $debug_cmd func_relative_path_result= func_normal_abspath "$1" func_relative_path_tlibdir=$func_normal_abspath_result func_normal_abspath "$2" func_relative_path_tbindir=$func_normal_abspath_result # Ascend the tree starting from libdir while :; do # check if we have found a prefix of bindir case $func_relative_path_tbindir in $func_relative_path_tlibdir) # found an exact match func_relative_path_tcancelled= break ;; $func_relative_path_tlibdir*) # found a matching prefix func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" func_relative_path_tcancelled=$func_stripname_result if test -z "$func_relative_path_result"; then func_relative_path_result=. fi break ;; *) func_dirname $func_relative_path_tlibdir func_relative_path_tlibdir=$func_dirname_result if test -z "$func_relative_path_tlibdir"; then # Have to descend all the way to the root! func_relative_path_result=../$func_relative_path_result func_relative_path_tcancelled=$func_relative_path_tbindir break fi func_relative_path_result=../$func_relative_path_result ;; esac done # Now calculate path; take care to avoid doubling-up slashes. func_stripname '' '/' "$func_relative_path_result" func_relative_path_result=$func_stripname_result func_stripname '/' '/' "$func_relative_path_tcancelled" if test -n "$func_stripname_result"; then func_append func_relative_path_result "/$func_stripname_result" fi # Normalisation. If bindir is libdir, return '.' else relative path. if test -n "$func_relative_path_result"; then func_stripname './' '' "$func_relative_path_result" func_relative_path_result=$func_stripname_result fi test -n "$func_relative_path_result" || func_relative_path_result=. : } # func_quote_for_eval ARG... # -------------------------- # Aesthetically quote ARGs to be evaled later. # This function returns two values: # i) func_quote_for_eval_result # double-quoted, suitable for a subsequent eval # ii) func_quote_for_eval_unquoted_result # has all characters that are still active within double # quotes backslashified. func_quote_for_eval () { $debug_cmd func_quote_for_eval_unquoted_result= func_quote_for_eval_result= while test 0 -lt $#; do case $1 in *[\\\`\"\$]*) _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; *) _G_unquoted_arg=$1 ;; esac if test -n "$func_quote_for_eval_unquoted_result"; then func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" else func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" fi case $_G_unquoted_arg in # Double-quote args containing shell metacharacters to delay # word splitting, command substitution and variable expansion # for a subsequent eval. # Many Bourne shells cannot handle close brackets correctly # in scan sets, so we specify it separately. *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") _G_quoted_arg=\"$_G_unquoted_arg\" ;; *) _G_quoted_arg=$_G_unquoted_arg ;; esac if test -n "$func_quote_for_eval_result"; then func_append func_quote_for_eval_result " $_G_quoted_arg" else func_append func_quote_for_eval_result "$_G_quoted_arg" fi shift done } # func_quote_for_expand ARG # ------------------------- # Aesthetically quote ARG to be evaled later; same as above, # but do not quote variable references. func_quote_for_expand () { $debug_cmd case $1 in *[\\\`\"]*) _G_arg=`$ECHO "$1" | $SED \ -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; *) _G_arg=$1 ;; esac case $_G_arg in # Double-quote args containing shell metacharacters to delay # word splitting and command substitution for a subsequent eval. # Many Bourne shells cannot handle close brackets correctly # in scan sets, so we specify it separately. *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") _G_arg=\"$_G_arg\" ;; esac func_quote_for_expand_result=$_G_arg } # func_stripname PREFIX SUFFIX NAME # --------------------------------- # strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. # PREFIX and SUFFIX must not contain globbing or regex special # characters, hashes, percent signs, but SUFFIX may contain a leading # dot (in which case that matches only a dot). if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_stripname () { $debug_cmd # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are # positional parameters, so assign one to ordinary variable first. func_stripname_result=$3 func_stripname_result=${func_stripname_result#"$1"} func_stripname_result=${func_stripname_result%"$2"} }' else func_stripname () { $debug_cmd case $2 in .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; esac } fi # func_show_eval CMD [FAIL_EXP] # ----------------------------- # Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is # not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP # is given, then evaluate it. func_show_eval () { $debug_cmd _G_cmd=$1 _G_fail_exp=${2-':'} func_quote_for_expand "$_G_cmd" eval "func_notquiet $func_quote_for_expand_result" $opt_dry_run || { eval "$_G_cmd" _G_status=$? if test 0 -ne "$_G_status"; then eval "(exit $_G_status); $_G_fail_exp" fi } } # func_show_eval_locale CMD [FAIL_EXP] # ------------------------------------ # Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is # not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP # is given, then evaluate it. Use the saved locale for evaluation. func_show_eval_locale () { $debug_cmd _G_cmd=$1 _G_fail_exp=${2-':'} $opt_quiet || { func_quote_for_expand "$_G_cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || { eval "$_G_user_locale $_G_cmd" _G_status=$? eval "$_G_safe_locale" if test 0 -ne "$_G_status"; then eval "(exit $_G_status); $_G_fail_exp" fi } } # func_tr_sh # ---------- # Turn $1 into a string suitable for a shell variable name. # Result is stored in $func_tr_sh_result. All characters # not in the set a-zA-Z0-9_ are replaced with '_'. Further, # if $1 begins with a digit, a '_' is prepended as well. func_tr_sh () { $debug_cmd case $1 in [0-9]* | *[!a-zA-Z0-9_]*) func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` ;; * ) func_tr_sh_result=$1 ;; esac } # func_verbose ARG... # ------------------- # Echo program name prefixed message in verbose mode only. func_verbose () { $debug_cmd $opt_verbose && func_echo "$*" : } # func_warn_and_continue ARG... # ----------------------------- # Echo program name prefixed warning message to standard error. func_warn_and_continue () { $debug_cmd $require_term_colors func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 } # func_warning CATEGORY ARG... # ---------------------------- # Echo program name prefixed warning message to standard error. Warning # messages can be filtered according to CATEGORY, where this function # elides messages where CATEGORY is not listed in the global variable # 'opt_warning_types'. func_warning () { $debug_cmd # CATEGORY must be in the warning_categories list! case " $warning_categories " in *" $1 "*) ;; *) func_internal_error "invalid warning category '$1'" ;; esac _G_category=$1 shift case " $opt_warning_types " in *" $_G_category "*) $warning_func ${1+"$@"} ;; esac } # func_sort_ver VER1 VER2 # ----------------------- # 'sort -V' is not generally available. # Note this deviates from the version comparison in automake # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a # but this should suffice as we won't be specifying old # version formats or redundant trailing .0 in bootstrap.conf. # If we did want full compatibility then we should probably # use m4_version_compare from autoconf. func_sort_ver () { $debug_cmd printf '%s\n%s\n' "$1" "$2" \ | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n } # func_lt_ver PREV CURR # --------------------- # Return true if PREV and CURR are in the correct order according to # func_sort_ver, otherwise false. Use it like this: # # func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." func_lt_ver () { $debug_cmd test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` } # Local variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" # time-stamp-time-zone: "UTC" # End: #! /bin/sh # Set a version string for this script. scriptversion=2014-01-07.03; # UTC # A portable, pluggable option parser for Bourne shell. # Written by Gary V. Vaughan, 2010 # Copyright (C) 2010-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # Please report bugs or propose patches to gary@gnu.org. ## ------ ## ## Usage. ## ## ------ ## # This file is a library for parsing options in your shell scripts along # with assorted other useful supporting features that you can make use # of too. # # For the simplest scripts you might need only: # # #!/bin/sh # . relative/path/to/funclib.sh # . relative/path/to/options-parser # scriptversion=1.0 # func_options ${1+"$@"} # eval set dummy "$func_options_result"; shift # ...rest of your script... # # In order for the '--version' option to work, you will need to have a # suitably formatted comment like the one at the top of this file # starting with '# Written by ' and ending with '# warranty; '. # # For '-h' and '--help' to work, you will also need a one line # description of your script's purpose in a comment directly above the # '# Written by ' line, like the one at the top of this file. # # The default options also support '--debug', which will turn on shell # execution tracing (see the comment above debug_cmd below for another # use), and '--verbose' and the func_verbose function to allow your script # to display verbose messages only when your user has specified # '--verbose'. # # After sourcing this file, you can plug processing for additional # options by amending the variables from the 'Configuration' section # below, and following the instructions in the 'Option parsing' # section further down. ## -------------- ## ## Configuration. ## ## -------------- ## # You should override these variables in your script after sourcing this # file so that they reflect the customisations you have added to the # option parser. # The usage line for option parsing errors and the start of '-h' and # '--help' output messages. You can embed shell variables for delayed # expansion at the time the message is displayed, but you will need to # quote other shell meta-characters carefully to prevent them being # expanded when the contents are evaled. usage='$progpath [OPTION]...' # Short help message in response to '-h' and '--help'. Add to this or # override it after sourcing this library to reflect the full set of # options your script accepts. usage_message="\ --debug enable verbose shell tracing -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] -v, --verbose verbosely report processing --version print version information and exit -h, --help print short or long help message and exit " # Additional text appended to 'usage_message' in response to '--help'. long_help_message=" Warning categories include: 'all' show all warnings 'none' turn off all the warnings 'error' warnings are treated as fatal errors" # Help message printed before fatal option parsing errors. fatal_help="Try '\$progname --help' for more information." ## ------------------------- ## ## Hook function management. ## ## ------------------------- ## # This section contains functions for adding, removing, and running hooks # to the main code. A hook is just a named list of of function, that can # be run in order later on. # func_hookable FUNC_NAME # ----------------------- # Declare that FUNC_NAME will run hooks added with # 'func_add_hook FUNC_NAME ...'. func_hookable () { $debug_cmd func_append hookable_fns " $1" } # func_add_hook FUNC_NAME HOOK_FUNC # --------------------------------- # Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must # first have been declared "hookable" by a call to 'func_hookable'. func_add_hook () { $debug_cmd case " $hookable_fns " in *" $1 "*) ;; *) func_fatal_error "'$1' does not accept hook functions." ;; esac eval func_append ${1}_hooks '" $2"' } # func_remove_hook FUNC_NAME HOOK_FUNC # ------------------------------------ # Remove HOOK_FUNC from the list of functions called by FUNC_NAME. func_remove_hook () { $debug_cmd eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' } # func_run_hooks FUNC_NAME [ARG]... # --------------------------------- # Run all hook functions registered to FUNC_NAME. # It is assumed that the list of hook functions contains nothing more # than a whitespace-delimited list of legal shell function names, and # no effort is wasted trying to catch shell meta-characters or preserve # whitespace. func_run_hooks () { $debug_cmd case " $hookable_fns " in *" $1 "*) ;; *) func_fatal_error "'$1' does not support hook funcions.n" ;; esac eval _G_hook_fns=\$$1_hooks; shift for _G_hook in $_G_hook_fns; do eval $_G_hook '"$@"' # store returned options list back into positional # parameters for next 'cmd' execution. eval _G_hook_result=\$${_G_hook}_result eval set dummy "$_G_hook_result"; shift done func_quote_for_eval ${1+"$@"} func_run_hooks_result=$func_quote_for_eval_result } ## --------------- ## ## Option parsing. ## ## --------------- ## # In order to add your own option parsing hooks, you must accept the # full positional parameter list in your hook function, remove any # options that you action, and then pass back the remaining unprocessed # options in '_result', escaped suitably for # 'eval'. Like this: # # my_options_prep () # { # $debug_cmd # # # Extend the existing usage message. # usage_message=$usage_message' # -s, --silent don'\''t print informational messages # ' # # func_quote_for_eval ${1+"$@"} # my_options_prep_result=$func_quote_for_eval_result # } # func_add_hook func_options_prep my_options_prep # # # my_silent_option () # { # $debug_cmd # # # Note that for efficiency, we parse as many options as we can # # recognise in a loop before passing the remainder back to the # # caller on the first unrecognised argument we encounter. # while test $# -gt 0; do # opt=$1; shift # case $opt in # --silent|-s) opt_silent=: ;; # # Separate non-argument short options: # -s*) func_split_short_opt "$_G_opt" # set dummy "$func_split_short_opt_name" \ # "-$func_split_short_opt_arg" ${1+"$@"} # shift # ;; # *) set dummy "$_G_opt" "$*"; shift; break ;; # esac # done # # func_quote_for_eval ${1+"$@"} # my_silent_option_result=$func_quote_for_eval_result # } # func_add_hook func_parse_options my_silent_option # # # my_option_validation () # { # $debug_cmd # # $opt_silent && $opt_verbose && func_fatal_help "\ # '--silent' and '--verbose' options are mutually exclusive." # # func_quote_for_eval ${1+"$@"} # my_option_validation_result=$func_quote_for_eval_result # } # func_add_hook func_validate_options my_option_validation # # You'll alse need to manually amend $usage_message to reflect the extra # options you parse. It's preferable to append if you can, so that # multiple option parsing hooks can be added safely. # func_options [ARG]... # --------------------- # All the functions called inside func_options are hookable. See the # individual implementations for details. func_hookable func_options func_options () { $debug_cmd func_options_prep ${1+"$@"} eval func_parse_options \ ${func_options_prep_result+"$func_options_prep_result"} eval func_validate_options \ ${func_parse_options_result+"$func_parse_options_result"} eval func_run_hooks func_options \ ${func_validate_options_result+"$func_validate_options_result"} # save modified positional parameters for caller func_options_result=$func_run_hooks_result } # func_options_prep [ARG]... # -------------------------- # All initialisations required before starting the option parse loop. # Note that when calling hook functions, we pass through the list of # positional parameters. If a hook function modifies that list, and # needs to propogate that back to rest of this script, then the complete # modified list must be put in 'func_run_hooks_result' before # returning. func_hookable func_options_prep func_options_prep () { $debug_cmd # Option defaults: opt_verbose=false opt_warning_types= func_run_hooks func_options_prep ${1+"$@"} # save modified positional parameters for caller func_options_prep_result=$func_run_hooks_result } # func_parse_options [ARG]... # --------------------------- # The main option parsing loop. func_hookable func_parse_options func_parse_options () { $debug_cmd func_parse_options_result= # this just eases exit handling while test $# -gt 0; do # Defer to hook functions for initial option parsing, so they # get priority in the event of reusing an option name. func_run_hooks func_parse_options ${1+"$@"} # Adjust func_parse_options positional parameters to match eval set dummy "$func_run_hooks_result"; shift # Break out of the loop if we already parsed every option. test $# -gt 0 || break _G_opt=$1 shift case $_G_opt in --debug|-x) debug_cmd='set -x' func_echo "enabling shell trace mode" $debug_cmd ;; --no-warnings|--no-warning|--no-warn) set dummy --warnings none ${1+"$@"} shift ;; --warnings|--warning|-W) test $# = 0 && func_missing_arg $_G_opt && break case " $warning_categories $1" in *" $1 "*) # trailing space prevents matching last $1 above func_append_uniq opt_warning_types " $1" ;; *all) opt_warning_types=$warning_categories ;; *none) opt_warning_types=none warning_func=: ;; *error) opt_warning_types=$warning_categories warning_func=func_fatal_error ;; *) func_fatal_error \ "unsupported warning category: '$1'" ;; esac shift ;; --verbose|-v) opt_verbose=: ;; --version) func_version ;; -\?|-h) func_usage ;; --help) func_help ;; # Separate optargs to long options (plugins may need this): --*=*) func_split_equals "$_G_opt" set dummy "$func_split_equals_lhs" \ "$func_split_equals_rhs" ${1+"$@"} shift ;; # Separate optargs to short options: -W*) func_split_short_opt "$_G_opt" set dummy "$func_split_short_opt_name" \ "$func_split_short_opt_arg" ${1+"$@"} shift ;; # Separate non-argument short options: -\?*|-h*|-v*|-x*) func_split_short_opt "$_G_opt" set dummy "$func_split_short_opt_name" \ "-$func_split_short_opt_arg" ${1+"$@"} shift ;; --) break ;; -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; esac done # save modified positional parameters for caller func_quote_for_eval ${1+"$@"} func_parse_options_result=$func_quote_for_eval_result } # func_validate_options [ARG]... # ------------------------------ # Perform any sanity checks on option settings and/or unconsumed # arguments. func_hookable func_validate_options func_validate_options () { $debug_cmd # Display all warnings if -W was not given. test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" func_run_hooks func_validate_options ${1+"$@"} # Bail if the options were screwed! $exit_cmd $EXIT_FAILURE # save modified positional parameters for caller func_validate_options_result=$func_run_hooks_result } ## ----------------- ## ## Helper functions. ## ## ----------------- ## # This section contains the helper functions used by the rest of the # hookable option parser framework in ascii-betical order. # func_fatal_help ARG... # ---------------------- # Echo program name prefixed message to standard error, followed by # a help hint, and exit. func_fatal_help () { $debug_cmd eval \$ECHO \""Usage: $usage"\" eval \$ECHO \""$fatal_help"\" func_error ${1+"$@"} exit $EXIT_FAILURE } # func_help # --------- # Echo long help message to standard output and exit. func_help () { $debug_cmd func_usage_message $ECHO "$long_help_message" exit 0 } # func_missing_arg ARGNAME # ------------------------ # Echo program name prefixed message to standard error and set global # exit_cmd. func_missing_arg () { $debug_cmd func_error "Missing argument for '$1'." exit_cmd=exit } # func_split_equals STRING # ------------------------ # Set func_split_equals_lhs and func_split_equals_rhs shell variables after # splitting STRING at the '=' sign. test -z "$_G_HAVE_XSI_OPS" \ && (eval 'x=a/b/c; test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ && _G_HAVE_XSI_OPS=yes if test yes = "$_G_HAVE_XSI_OPS" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_split_equals () { $debug_cmd func_split_equals_lhs=${1%%=*} func_split_equals_rhs=${1#*=} test "x$func_split_equals_lhs" = "x$1" \ && func_split_equals_rhs= }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_split_equals () { $debug_cmd func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` func_split_equals_rhs= test "x$func_split_equals_lhs" = "x$1" \ || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` } fi #func_split_equals # func_split_short_opt SHORTOPT # ----------------------------- # Set func_split_short_opt_name and func_split_short_opt_arg shell # variables after splitting SHORTOPT after the 2nd character. if test yes = "$_G_HAVE_XSI_OPS" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_split_short_opt () { $debug_cmd func_split_short_opt_arg=${1#??} func_split_short_opt_name=${1%"$func_split_short_opt_arg"} }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_split_short_opt () { $debug_cmd func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` } fi #func_split_short_opt # func_usage # ---------- # Echo short help message to standard output and exit. func_usage () { $debug_cmd func_usage_message $ECHO "Run '$progname --help |${PAGER-more}' for full usage" exit 0 } # func_usage_message # ------------------ # Echo short help message to standard output. func_usage_message () { $debug_cmd eval \$ECHO \""Usage: $usage"\" echo $SED -n 's|^# || /^Written by/{ x;p;x } h /^Written by/q' < "$progpath" echo eval \$ECHO \""$usage_message"\" } # func_version # ------------ # Echo version message to standard output and exit. func_version () { $debug_cmd printf '%s\n' "$progname $scriptversion" $SED -n ' /(C)/!b go :more /\./!{ N s|\n# | | b more } :go /^# Written by /,/# warranty; / { s|^# || s|^# *$|| s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| p } /^# Written by / { s|^# || p } /^warranty; /q' < "$progpath" exit $? } # Local variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" # time-stamp-time-zone: "UTC" # End: # Set a version string. scriptversion='(GNU libtool) 2.4.6' # func_echo ARG... # ---------------- # Libtool also displays the current mode in messages, so override # funclib.sh func_echo with this custom definition. func_echo () { $debug_cmd _G_message=$* func_echo_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_IFS $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" done IFS=$func_echo_IFS } # func_warning ARG... # ------------------- # Libtool warnings are not categorized, so override funclib.sh # func_warning with this simpler definition. func_warning () { $debug_cmd $warning_func ${1+"$@"} } ## ---------------- ## ## Options parsing. ## ## ---------------- ## # Hook in the functions to make sure our own options are parsed during # the option parsing loop. usage='$progpath [OPTION]... [MODE-ARG]...' # Short help message in response to '-h'. usage_message="Options: --config show all configuration variables --debug enable verbose shell tracing -n, --dry-run display commands without modifying any files --features display basic configuration information and exit --mode=MODE use operation mode MODE --no-warnings equivalent to '-Wnone' --preserve-dup-deps don't remove duplicate dependency libraries --quiet, --silent don't print informational messages --tag=TAG use configuration variables from tag TAG -v, --verbose print more informational messages than default --version print version information -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] -h, --help, --help-all print short, long, or detailed help message " # Additional text appended to 'usage_message' in response to '--help'. func_help () { $debug_cmd func_usage_message $ECHO "$long_help_message MODE must be one of the following: clean remove files from the build directory compile compile a source file into a libtool object execute automatically set library path, then run a program finish complete the installation of libtool libraries install install libraries or executables link create a library or an executable uninstall remove libraries from an installed directory MODE-ARGS vary depending on the MODE. When passed as first option, '--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. Try '$progname --help --mode=MODE' for a more detailed description of MODE. When reporting a bug, please describe a test case to reproduce it and include the following information: host-triplet: $host shell: $SHELL compiler: $LTCC compiler flags: $LTCFLAGS linker: $LD (gnu? $with_gnu_ld) version: $progname (GNU libtool) 2.4.6 automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` Report bugs to . GNU libtool home page: . General help using GNU software: ." exit 0 } # func_lo2o OBJECT-NAME # --------------------- # Transform OBJECT-NAME from a '.lo' suffix to the platform specific # object suffix. lo2o=s/\\.lo\$/.$objext/ o2lo=s/\\.$objext\$/.lo/ if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_lo2o () { case $1 in *.lo) func_lo2o_result=${1%.lo}.$objext ;; * ) func_lo2o_result=$1 ;; esac }' # func_xform LIBOBJ-OR-SOURCE # --------------------------- # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) # suffix to a '.lo' libtool-object suffix. eval 'func_xform () { func_xform_result=${1%.*}.lo }' else # ...otherwise fall back to using sed. func_lo2o () { func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` } func_xform () { func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` } fi # func_fatal_configuration ARG... # ------------------------------- # Echo program name prefixed message to standard error, followed by # a configuration failure hint, and exit. func_fatal_configuration () { func__fatal_error ${1+"$@"} \ "See the $PACKAGE documentation for more information." \ "Fatal configuration error." } # func_config # ----------- # Display the configuration for all the tags in this script. func_config () { re_begincf='^# ### BEGIN LIBTOOL' re_endcf='^# ### END LIBTOOL' # Default configuration. $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" # Now print the configurations for the tags. for tagname in $taglist; do $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" done exit $? } # func_features # ------------- # Display the features supported by this script. func_features () { echo "host: $host" if test yes = "$build_libtool_libs"; then echo "enable shared libraries" else echo "disable shared libraries" fi if test yes = "$build_old_libs"; then echo "enable static libraries" else echo "disable static libraries" fi exit $? } # func_enable_tag TAGNAME # ----------------------- # Verify that TAGNAME is valid, and either flag an error and exit, or # enable the TAGNAME tag. We also add TAGNAME to the global $taglist # variable here. func_enable_tag () { # Global variable: tagname=$1 re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" sed_extractcf=/$re_begincf/,/$re_endcf/p # Validate tagname. case $tagname in *[!-_A-Za-z0-9,/]*) func_fatal_error "invalid tag name: $tagname" ;; esac # Don't test for the "default" C tag, as we know it's # there but not specially marked. case $tagname in CC) ;; *) if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then taglist="$taglist $tagname" # Evaluate the configuration. Be careful to quote the path # and the sed script, to avoid splitting on whitespace, but # also don't use non-portable quotes within backquotes within # quotes we have to do it in 2 steps: extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` eval "$extractedcf" else func_error "ignoring unknown tag $tagname" fi ;; esac } # func_check_version_match # ------------------------ # Ensure that we are using m4 macros, and libtool script from the same # release of libtool. func_check_version_match () { if test "$package_revision" != "$macro_revision"; then if test "$VERSION" != "$macro_version"; then if test -z "$macro_version"; then cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, but the $progname: definition of this LT_INIT comes from an older release. $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION $progname: and run autoconf again. _LT_EOF else cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, but the $progname: definition of this LT_INIT comes from $PACKAGE $macro_version. $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION $progname: and run autoconf again. _LT_EOF fi else cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, $progname: but the definition of this LT_INIT comes from revision $macro_revision. $progname: You should recreate aclocal.m4 with macros from revision $package_revision $progname: of $PACKAGE $VERSION and run autoconf again. _LT_EOF fi exit $EXIT_MISMATCH fi } # libtool_options_prep [ARG]... # ----------------------------- # Preparation for options parsed by libtool. libtool_options_prep () { $debug_mode # Option defaults: opt_config=false opt_dlopen= opt_dry_run=false opt_help=false opt_mode= opt_preserve_dup_deps=false opt_quiet=false nonopt= preserve_args= # Shorthand for --mode=foo, only valid as the first argument case $1 in clean|clea|cle|cl) shift; set dummy --mode clean ${1+"$@"}; shift ;; compile|compil|compi|comp|com|co|c) shift; set dummy --mode compile ${1+"$@"}; shift ;; execute|execut|execu|exec|exe|ex|e) shift; set dummy --mode execute ${1+"$@"}; shift ;; finish|finis|fini|fin|fi|f) shift; set dummy --mode finish ${1+"$@"}; shift ;; install|instal|insta|inst|ins|in|i) shift; set dummy --mode install ${1+"$@"}; shift ;; link|lin|li|l) shift; set dummy --mode link ${1+"$@"}; shift ;; uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) shift; set dummy --mode uninstall ${1+"$@"}; shift ;; esac # Pass back the list of options. func_quote_for_eval ${1+"$@"} libtool_options_prep_result=$func_quote_for_eval_result } func_add_hook func_options_prep libtool_options_prep # libtool_parse_options [ARG]... # --------------------------------- # Provide handling for libtool specific options. libtool_parse_options () { $debug_cmd # Perform our own loop to consume as many options as possible in # each iteration. while test $# -gt 0; do _G_opt=$1 shift case $_G_opt in --dry-run|--dryrun|-n) opt_dry_run=: ;; --config) func_config ;; --dlopen|-dlopen) opt_dlopen="${opt_dlopen+$opt_dlopen }$1" shift ;; --preserve-dup-deps) opt_preserve_dup_deps=: ;; --features) func_features ;; --finish) set dummy --mode finish ${1+"$@"}; shift ;; --help) opt_help=: ;; --help-all) opt_help=': help-all' ;; --mode) test $# = 0 && func_missing_arg $_G_opt && break opt_mode=$1 case $1 in # Valid mode arguments: clean|compile|execute|finish|install|link|relink|uninstall) ;; # Catch anything else as an error *) func_error "invalid argument for $_G_opt" exit_cmd=exit break ;; esac shift ;; --no-silent|--no-quiet) opt_quiet=false func_append preserve_args " $_G_opt" ;; --no-warnings|--no-warning|--no-warn) opt_warning=false func_append preserve_args " $_G_opt" ;; --no-verbose) opt_verbose=false func_append preserve_args " $_G_opt" ;; --silent|--quiet) opt_quiet=: opt_verbose=false func_append preserve_args " $_G_opt" ;; --tag) test $# = 0 && func_missing_arg $_G_opt && break opt_tag=$1 func_append preserve_args " $_G_opt $1" func_enable_tag "$1" shift ;; --verbose|-v) opt_quiet=false opt_verbose=: func_append preserve_args " $_G_opt" ;; # An option not handled by this hook function: *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; esac done # save modified positional parameters for caller func_quote_for_eval ${1+"$@"} libtool_parse_options_result=$func_quote_for_eval_result } func_add_hook func_parse_options libtool_parse_options # libtool_validate_options [ARG]... # --------------------------------- # Perform any sanity checks on option settings and/or unconsumed # arguments. libtool_validate_options () { # save first non-option argument if test 0 -lt $#; then nonopt=$1 shift fi # preserve --debug test : = "$debug_cmd" || func_append preserve_args " --debug" case $host in # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) # don't eliminate duplications in $postdeps and $predeps opt_duplicate_compiler_generated_deps=: ;; *) opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps ;; esac $opt_help || { # Sanity checks first: func_check_version_match test yes != "$build_libtool_libs" \ && test yes != "$build_old_libs" \ && func_fatal_configuration "not configured to build any kind of library" # Darwin sucks eval std_shrext=\"$shrext_cmds\" # Only execute mode is allowed to have -dlopen flags. if test -n "$opt_dlopen" && test execute != "$opt_mode"; then func_error "unrecognized option '-dlopen'" $ECHO "$help" 1>&2 exit $EXIT_FAILURE fi # Change the help message to a mode-specific one. generic_help=$help help="Try '$progname --help --mode=$opt_mode' for more information." } # Pass back the unparsed argument list func_quote_for_eval ${1+"$@"} libtool_validate_options_result=$func_quote_for_eval_result } func_add_hook func_validate_options libtool_validate_options # Process options as early as possible so that --help and --version # can return quickly. func_options ${1+"$@"} eval set dummy "$func_options_result"; shift ## ----------- ## ## Main. ## ## ----------- ## magic='%%%MAGIC variable%%%' magic_exe='%%%MAGIC EXE variable%%%' # Global variables. extracted_archives= extracted_serial=0 # If this variable is set in any of the actions, the command in it # will be execed at the end. This prevents here-documents from being # left over by shells. exec_cmd= # A function that is used when there is no print builtin or printf. func_fallback_echo () { eval 'cat <<_LTECHO_EOF $1 _LTECHO_EOF' } # func_generated_by_libtool # True iff stdin has been generated by Libtool. This function is only # a basic sanity check; it will hardly flush out determined imposters. func_generated_by_libtool_p () { $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 } # func_lalib_p file # True iff FILE is a libtool '.la' library or '.lo' object file. # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_lalib_p () { test -f "$1" && $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p } # func_lalib_unsafe_p file # True iff FILE is a libtool '.la' library or '.lo' object file. # This function implements the same check as func_lalib_p without # resorting to external programs. To this end, it redirects stdin and # closes it afterwards, without saving the original file descriptor. # As a safety measure, use it only where a negative result would be # fatal anyway. Works if 'file' does not exist. func_lalib_unsafe_p () { lalib_p=no if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then for lalib_p_l in 1 2 3 4 do read lalib_p_line case $lalib_p_line in \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; esac done exec 0<&5 5<&- fi test yes = "$lalib_p" } # func_ltwrapper_script_p file # True iff FILE is a libtool wrapper script # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_script_p () { test -f "$1" && $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p } # func_ltwrapper_executable_p file # True iff FILE is a libtool wrapper executable # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_executable_p () { func_ltwrapper_exec_suffix= case $1 in *.exe) ;; *) func_ltwrapper_exec_suffix=.exe ;; esac $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 } # func_ltwrapper_scriptname file # Assumes file is an ltwrapper_executable # uses $file to determine the appropriate filename for a # temporary ltwrapper_script. func_ltwrapper_scriptname () { func_dirname_and_basename "$1" "" "." func_stripname '' '.exe' "$func_basename_result" func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper } # func_ltwrapper_p file # True iff FILE is a libtool wrapper script or wrapper executable # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_p () { func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" } # func_execute_cmds commands fail_cmd # Execute tilde-delimited COMMANDS. # If FAIL_CMD is given, eval that upon failure. # FAIL_CMD may read-access the current command in variable CMD! func_execute_cmds () { $debug_cmd save_ifs=$IFS; IFS='~' for cmd in $1; do IFS=$sp$nl eval cmd=\"$cmd\" IFS=$save_ifs func_show_eval "$cmd" "${2-:}" done IFS=$save_ifs } # func_source file # Source FILE, adding directory component if necessary. # Note that it is not necessary on cygwin/mingw to append a dot to # FILE even if both FILE and FILE.exe exist: automatic-append-.exe # behavior happens only for exec(3), not for open(2)! Also, sourcing # 'FILE.' does not work on cygwin managed mounts. func_source () { $debug_cmd case $1 in */* | *\\*) . "$1" ;; *) . "./$1" ;; esac } # func_resolve_sysroot PATH # Replace a leading = in PATH with a sysroot. Store the result into # func_resolve_sysroot_result func_resolve_sysroot () { func_resolve_sysroot_result=$1 case $func_resolve_sysroot_result in =*) func_stripname '=' '' "$func_resolve_sysroot_result" func_resolve_sysroot_result=$lt_sysroot$func_stripname_result ;; esac } # func_replace_sysroot PATH # If PATH begins with the sysroot, replace it with = and # store the result into func_replace_sysroot_result. func_replace_sysroot () { case $lt_sysroot:$1 in ?*:"$lt_sysroot"*) func_stripname "$lt_sysroot" '' "$1" func_replace_sysroot_result='='$func_stripname_result ;; *) # Including no sysroot. func_replace_sysroot_result=$1 ;; esac } # func_infer_tag arg # Infer tagged configuration to use if any are available and # if one wasn't chosen via the "--tag" command line option. # Only attempt this if the compiler in the base compile # command doesn't match the default compiler. # arg is usually of the form 'gcc ...' func_infer_tag () { $debug_cmd if test -n "$available_tags" && test -z "$tagname"; then CC_quoted= for arg in $CC; do func_append_quoted CC_quoted "$arg" done CC_expanded=`func_echo_all $CC` CC_quoted_expanded=`func_echo_all $CC_quoted` case $@ in # Blanks in the command may have been stripped by the calling shell, # but not from the CC environment variable when configure was run. " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; # Blanks at the start of $base_compile will cause this to fail # if we don't check for them as well. *) for z in $available_tags; do if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then # Evaluate the configuration. eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" CC_quoted= for arg in $CC; do # Double-quote args containing other shell metacharacters. func_append_quoted CC_quoted "$arg" done CC_expanded=`func_echo_all $CC` CC_quoted_expanded=`func_echo_all $CC_quoted` case "$@ " in " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) # The compiler in the base compile command matches # the one in the tagged configuration. # Assume this is the tagged configuration we want. tagname=$z break ;; esac fi done # If $tagname still isn't set, then no tagged configuration # was found and let the user know that the "--tag" command # line option must be used. if test -z "$tagname"; then func_echo "unable to infer tagged configuration" func_fatal_error "specify a tag with '--tag'" # else # func_verbose "using $tagname tagged configuration" fi ;; esac fi } # func_write_libtool_object output_name pic_name nonpic_name # Create a libtool object file (analogous to a ".la" file), # but don't create it if we're doing a dry run. func_write_libtool_object () { write_libobj=$1 if test yes = "$build_libtool_libs"; then write_lobj=\'$2\' else write_lobj=none fi if test yes = "$build_old_libs"; then write_oldobj=\'$3\' else write_oldobj=none fi $opt_dry_run || { cat >${write_libobj}T </dev/null` if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | $SED -e "$sed_naive_backslashify"` else func_convert_core_file_wine_to_w32_result= fi fi } # end: func_convert_core_file_wine_to_w32 # func_convert_core_path_wine_to_w32 ARG # Helper function used by path conversion functions when $build is *nix, and # $host is mingw, cygwin, or some other w32 environment. Relies on a correctly # configured wine environment available, with the winepath program in $build's # $PATH. Assumes ARG has no leading or trailing path separator characters. # # ARG is path to be converted from $build format to win32. # Result is available in $func_convert_core_path_wine_to_w32_result. # Unconvertible file (directory) names in ARG are skipped; if no directory names # are convertible, then the result may be empty. func_convert_core_path_wine_to_w32 () { $debug_cmd # unfortunately, winepath doesn't convert paths, only file names func_convert_core_path_wine_to_w32_result= if test -n "$1"; then oldIFS=$IFS IFS=: for func_convert_core_path_wine_to_w32_f in $1; do IFS=$oldIFS func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" if test -n "$func_convert_core_file_wine_to_w32_result"; then if test -z "$func_convert_core_path_wine_to_w32_result"; then func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result else func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" fi fi done IFS=$oldIFS fi } # end: func_convert_core_path_wine_to_w32 # func_cygpath ARGS... # Wrapper around calling the cygpath program via LT_CYGPATH. This is used when # when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) # $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or # (2), returns the Cygwin file name or path in func_cygpath_result (input # file name or path is assumed to be in w32 format, as previously converted # from $build's *nix or MSYS format). In case (3), returns the w32 file name # or path in func_cygpath_result (input file name or path is assumed to be in # Cygwin format). Returns an empty string on error. # # ARGS are passed to cygpath, with the last one being the file name or path to # be converted. # # Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH # environment variable; do not put it in $PATH. func_cygpath () { $debug_cmd if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` if test "$?" -ne 0; then # on failure, ensure result is empty func_cygpath_result= fi else func_cygpath_result= func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" fi } #end: func_cygpath # func_convert_core_msys_to_w32 ARG # Convert file name or path ARG from MSYS format to w32 format. Return # result in func_convert_core_msys_to_w32_result. func_convert_core_msys_to_w32 () { $debug_cmd # awkward: cmd appends spaces to result func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` } #end: func_convert_core_msys_to_w32 # func_convert_file_check ARG1 ARG2 # Verify that ARG1 (a file name in $build format) was converted to $host # format in ARG2. Otherwise, emit an error message, but continue (resetting # func_to_host_file_result to ARG1). func_convert_file_check () { $debug_cmd if test -z "$2" && test -n "$1"; then func_error "Could not determine host file name corresponding to" func_error " '$1'" func_error "Continuing, but uninstalled executables may not work." # Fallback: func_to_host_file_result=$1 fi } # end func_convert_file_check # func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH # Verify that FROM_PATH (a path in $build format) was converted to $host # format in TO_PATH. Otherwise, emit an error message, but continue, resetting # func_to_host_file_result to a simplistic fallback value (see below). func_convert_path_check () { $debug_cmd if test -z "$4" && test -n "$3"; then func_error "Could not determine the host path corresponding to" func_error " '$3'" func_error "Continuing, but uninstalled executables may not work." # Fallback. This is a deliberately simplistic "conversion" and # should not be "improved". See libtool.info. if test "x$1" != "x$2"; then lt_replace_pathsep_chars="s|$1|$2|g" func_to_host_path_result=`echo "$3" | $SED -e "$lt_replace_pathsep_chars"` else func_to_host_path_result=$3 fi fi } # end func_convert_path_check # func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG # Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT # and appending REPL if ORIG matches BACKPAT. func_convert_path_front_back_pathsep () { $debug_cmd case $4 in $1 ) func_to_host_path_result=$3$func_to_host_path_result ;; esac case $4 in $2 ) func_append func_to_host_path_result "$3" ;; esac } # end func_convert_path_front_back_pathsep ################################################## # $build to $host FILE NAME CONVERSION FUNCTIONS # ################################################## # invoked via '$to_host_file_cmd ARG' # # In each case, ARG is the path to be converted from $build to $host format. # Result will be available in $func_to_host_file_result. # func_to_host_file ARG # Converts the file name ARG from $build format to $host format. Return result # in func_to_host_file_result. func_to_host_file () { $debug_cmd $to_host_file_cmd "$1" } # end func_to_host_file # func_to_tool_file ARG LAZY # converts the file name ARG from $build format to toolchain format. Return # result in func_to_tool_file_result. If the conversion in use is listed # in (the comma separated) LAZY, no conversion takes place. func_to_tool_file () { $debug_cmd case ,$2, in *,"$to_tool_file_cmd",*) func_to_tool_file_result=$1 ;; *) $to_tool_file_cmd "$1" func_to_tool_file_result=$func_to_host_file_result ;; esac } # end func_to_tool_file # func_convert_file_noop ARG # Copy ARG to func_to_host_file_result. func_convert_file_noop () { func_to_host_file_result=$1 } # end func_convert_file_noop # func_convert_file_msys_to_w32 ARG # Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic # conversion to w32 is not available inside the cwrapper. Returns result in # func_to_host_file_result. func_convert_file_msys_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_msys_to_w32 "$1" func_to_host_file_result=$func_convert_core_msys_to_w32_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_msys_to_w32 # func_convert_file_cygwin_to_w32 ARG # Convert file name ARG from Cygwin to w32 format. Returns result in # func_to_host_file_result. func_convert_file_cygwin_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then # because $build is cygwin, we call "the" cygpath in $PATH; no need to use # LT_CYGPATH in this case. func_to_host_file_result=`cygpath -m "$1"` fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_cygwin_to_w32 # func_convert_file_nix_to_w32 ARG # Convert file name ARG from *nix to w32 format. Requires a wine environment # and a working winepath. Returns result in func_to_host_file_result. func_convert_file_nix_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_file_wine_to_w32 "$1" func_to_host_file_result=$func_convert_core_file_wine_to_w32_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_nix_to_w32 # func_convert_file_msys_to_cygwin ARG # Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. # Returns result in func_to_host_file_result. func_convert_file_msys_to_cygwin () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_msys_to_w32 "$1" func_cygpath -u "$func_convert_core_msys_to_w32_result" func_to_host_file_result=$func_cygpath_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_msys_to_cygwin # func_convert_file_nix_to_cygwin ARG # Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed # in a wine environment, working winepath, and LT_CYGPATH set. Returns result # in func_to_host_file_result. func_convert_file_nix_to_cygwin () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. func_convert_core_file_wine_to_w32 "$1" func_cygpath -u "$func_convert_core_file_wine_to_w32_result" func_to_host_file_result=$func_cygpath_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_nix_to_cygwin ############################################# # $build to $host PATH CONVERSION FUNCTIONS # ############################################# # invoked via '$to_host_path_cmd ARG' # # In each case, ARG is the path to be converted from $build to $host format. # The result will be available in $func_to_host_path_result. # # Path separators are also converted from $build format to $host format. If # ARG begins or ends with a path separator character, it is preserved (but # converted to $host format) on output. # # All path conversion functions are named using the following convention: # file name conversion function : func_convert_file_X_to_Y () # path conversion function : func_convert_path_X_to_Y () # where, for any given $build/$host combination the 'X_to_Y' value is the # same. If conversion functions are added for new $build/$host combinations, # the two new functions must follow this pattern, or func_init_to_host_path_cmd # will break. # func_init_to_host_path_cmd # Ensures that function "pointer" variable $to_host_path_cmd is set to the # appropriate value, based on the value of $to_host_file_cmd. to_host_path_cmd= func_init_to_host_path_cmd () { $debug_cmd if test -z "$to_host_path_cmd"; then func_stripname 'func_convert_file_' '' "$to_host_file_cmd" to_host_path_cmd=func_convert_path_$func_stripname_result fi } # func_to_host_path ARG # Converts the path ARG from $build format to $host format. Return result # in func_to_host_path_result. func_to_host_path () { $debug_cmd func_init_to_host_path_cmd $to_host_path_cmd "$1" } # end func_to_host_path # func_convert_path_noop ARG # Copy ARG to func_to_host_path_result. func_convert_path_noop () { func_to_host_path_result=$1 } # end func_convert_path_noop # func_convert_path_msys_to_w32 ARG # Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic # conversion to w32 is not available inside the cwrapper. Returns result in # func_to_host_path_result. func_convert_path_msys_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # Remove leading and trailing path separator characters from ARG. MSYS # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; # and winepath ignores them completely. func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" func_to_host_path_result=$func_convert_core_msys_to_w32_result func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_msys_to_w32 # func_convert_path_cygwin_to_w32 ARG # Convert path ARG from Cygwin to w32 format. Returns result in # func_to_host_file_result. func_convert_path_cygwin_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_cygwin_to_w32 # func_convert_path_nix_to_w32 ARG # Convert path ARG from *nix to w32 format. Requires a wine environment and # a working winepath. Returns result in func_to_host_file_result. func_convert_path_nix_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" func_to_host_path_result=$func_convert_core_path_wine_to_w32_result func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_nix_to_w32 # func_convert_path_msys_to_cygwin ARG # Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. # Returns result in func_to_host_file_result. func_convert_path_msys_to_cygwin () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" func_cygpath -u -p "$func_convert_core_msys_to_w32_result" func_to_host_path_result=$func_cygpath_result func_convert_path_check : : \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" : "$1" fi } # end func_convert_path_msys_to_cygwin # func_convert_path_nix_to_cygwin ARG # Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a # a wine environment, working winepath, and LT_CYGPATH set. Returns result in # func_to_host_file_result. func_convert_path_nix_to_cygwin () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # Remove leading and trailing path separator characters from # ARG. msys behavior is inconsistent here, cygpath turns them # into '.;' and ';.', and winepath ignores them completely. func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" func_to_host_path_result=$func_cygpath_result func_convert_path_check : : \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" : "$1" fi } # end func_convert_path_nix_to_cygwin # func_dll_def_p FILE # True iff FILE is a Windows DLL '.def' file. # Keep in sync with _LT_DLL_DEF_P in libtool.m4 func_dll_def_p () { $debug_cmd func_dll_def_p_tmp=`$SED -n \ -e 's/^[ ]*//' \ -e '/^\(;.*\)*$/d' \ -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ -e q \ "$1"` test DEF = "$func_dll_def_p_tmp" } # func_mode_compile arg... func_mode_compile () { $debug_cmd # Get the compilation command and the source file. base_compile= srcfile=$nonopt # always keep a non-empty value in "srcfile" suppress_opt=yes suppress_output= arg_mode=normal libobj= later= pie_flag= for arg do case $arg_mode in arg ) # do not "continue". Instead, add this to base_compile lastarg=$arg arg_mode=normal ;; target ) libobj=$arg arg_mode=normal continue ;; normal ) # Accept any command-line options. case $arg in -o) test -n "$libobj" && \ func_fatal_error "you cannot specify '-o' more than once" arg_mode=target continue ;; -pie | -fpie | -fPIE) func_append pie_flag " $arg" continue ;; -shared | -static | -prefer-pic | -prefer-non-pic) func_append later " $arg" continue ;; -no-suppress) suppress_opt=no continue ;; -Xcompiler) arg_mode=arg # the next one goes into the "base_compile" arg list continue # The current "srcfile" will either be retained or ;; # replaced later. I would guess that would be a bug. -Wc,*) func_stripname '-Wc,' '' "$arg" args=$func_stripname_result lastarg= save_ifs=$IFS; IFS=, for arg in $args; do IFS=$save_ifs func_append_quoted lastarg "$arg" done IFS=$save_ifs func_stripname ' ' '' "$lastarg" lastarg=$func_stripname_result # Add the arguments to base_compile. func_append base_compile " $lastarg" continue ;; *) # Accept the current argument as the source file. # The previous "srcfile" becomes the current argument. # lastarg=$srcfile srcfile=$arg ;; esac # case $arg ;; esac # case $arg_mode # Aesthetically quote the previous argument. func_append_quoted base_compile "$lastarg" done # for arg case $arg_mode in arg) func_fatal_error "you must specify an argument for -Xcompile" ;; target) func_fatal_error "you must specify a target with '-o'" ;; *) # Get the name of the library object. test -z "$libobj" && { func_basename "$srcfile" libobj=$func_basename_result } ;; esac # Recognize several different file suffixes. # If the user specifies -o file.o, it is replaced with file.lo case $libobj in *.[cCFSifmso] | \ *.ada | *.adb | *.ads | *.asm | \ *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) func_xform "$libobj" libobj=$func_xform_result ;; esac case $libobj in *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; *) func_fatal_error "cannot determine name of library object from '$libobj'" ;; esac func_infer_tag $base_compile for arg in $later; do case $arg in -shared) test yes = "$build_libtool_libs" \ || func_fatal_configuration "cannot build a shared library" build_old_libs=no continue ;; -static) build_libtool_libs=no build_old_libs=yes continue ;; -prefer-pic) pic_mode=yes continue ;; -prefer-non-pic) pic_mode=no continue ;; esac done func_quote_for_eval "$libobj" test "X$libobj" != "X$func_quote_for_eval_result" \ && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ && func_warning "libobj name '$libobj' may not contain shell special characters." func_dirname_and_basename "$obj" "/" "" objname=$func_basename_result xdir=$func_dirname_result lobj=$xdir$objdir/$objname test -z "$base_compile" && \ func_fatal_help "you must specify a compilation command" # Delete any leftover library objects. if test yes = "$build_old_libs"; then removelist="$obj $lobj $libobj ${libobj}T" else removelist="$lobj $libobj ${libobj}T" fi # On Cygwin there's no "real" PIC flag so we must build both object types case $host_os in cygwin* | mingw* | pw32* | os2* | cegcc*) pic_mode=default ;; esac if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then # non-PIC code in shared libraries is not supported pic_mode=default fi # Calculate the filename of the output object if compiler does # not support -o with -c if test no = "$compiler_c_o"; then output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext lockfile=$output_obj.lock else output_obj= need_locks=no lockfile= fi # Lock this critical section if it is needed # We use this script file to make the link, it avoids creating a new file if test yes = "$need_locks"; then until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do func_echo "Waiting for $lockfile to be removed" sleep 2 done elif test warn = "$need_locks"; then if test -f "$lockfile"; then $ECHO "\ *** ERROR, $lockfile exists and contains: `cat $lockfile 2>/dev/null` This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi func_append removelist " $output_obj" $ECHO "$srcfile" > "$lockfile" fi $opt_dry_run || $RM $removelist func_append removelist " $lockfile" trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 srcfile=$func_to_tool_file_result func_quote_for_eval "$srcfile" qsrcfile=$func_quote_for_eval_result # Only build a PIC object if we are building libtool libraries. if test yes = "$build_libtool_libs"; then # Without this assignment, base_compile gets emptied. fbsd_hideous_sh_bug=$base_compile if test no != "$pic_mode"; then command="$base_compile $qsrcfile $pic_flag" else # Don't build PIC code command="$base_compile $qsrcfile" fi func_mkdir_p "$xdir$objdir" if test -z "$output_obj"; then # Place PIC objects in $objdir func_append command " -o $lobj" fi func_show_eval_locale "$command" \ 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' if test warn = "$need_locks" && test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then $ECHO "\ *** ERROR, $lockfile contains: `cat $lockfile 2>/dev/null` but it should contain: $srcfile This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi # Just move the object if needed, then go on to compile the next one if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then func_show_eval '$MV "$output_obj" "$lobj"' \ 'error=$?; $opt_dry_run || $RM $removelist; exit $error' fi # Allow error messages only from the first compilation. if test yes = "$suppress_opt"; then suppress_output=' >/dev/null 2>&1' fi fi # Only build a position-dependent object if we build old libraries. if test yes = "$build_old_libs"; then if test yes != "$pic_mode"; then # Don't build PIC code command="$base_compile $qsrcfile$pie_flag" else command="$base_compile $qsrcfile $pic_flag" fi if test yes = "$compiler_c_o"; then func_append command " -o $obj" fi # Suppress compiler output if we already did a PIC compilation. func_append command "$suppress_output" func_show_eval_locale "$command" \ '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' if test warn = "$need_locks" && test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then $ECHO "\ *** ERROR, $lockfile contains: `cat $lockfile 2>/dev/null` but it should contain: $srcfile This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi # Just move the object if needed if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then func_show_eval '$MV "$output_obj" "$obj"' \ 'error=$?; $opt_dry_run || $RM $removelist; exit $error' fi fi $opt_dry_run || { func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" # Unlock the critical section if it was locked if test no != "$need_locks"; then removelist=$lockfile $RM "$lockfile" fi } exit $EXIT_SUCCESS } $opt_help || { test compile = "$opt_mode" && func_mode_compile ${1+"$@"} } func_mode_help () { # We need to display help for each of the modes. case $opt_mode in "") # Generic help is extracted from the usage comments # at the start of this file. func_help ;; clean) $ECHO \ "Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... Remove files from the build directory. RM is the name of the program to use to delete files associated with each FILE (typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed to RM. If FILE is a libtool library, object or program, all the files associated with it are deleted. Otherwise, only FILE itself is deleted using RM." ;; compile) $ECHO \ "Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE Compile a source file into a libtool library object. This mode accepts the following additional options: -o OUTPUT-FILE set the output file name to OUTPUT-FILE -no-suppress do not suppress compiler output for multiple passes -prefer-pic try to build PIC objects only -prefer-non-pic try to build non-PIC objects only -shared do not build a '.o' file suitable for static linking -static only build a '.o' file suitable for static linking -Wc,FLAG pass FLAG directly to the compiler COMPILE-COMMAND is a command to be used in creating a 'standard' object file from the given SOURCEFILE. The output file name is determined by removing the directory component from SOURCEFILE, then substituting the C source code suffix '.c' with the library object suffix, '.lo'." ;; execute) $ECHO \ "Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... Automatically set library path, then run a program. This mode accepts the following additional options: -dlopen FILE add the directory containing FILE to the library path This mode sets the library path environment variable according to '-dlopen' flags. If any of the ARGS are libtool executable wrappers, then they are translated into their corresponding uninstalled binary, and any of their required library directories are added to the library path. Then, COMMAND is executed, with ARGS as arguments." ;; finish) $ECHO \ "Usage: $progname [OPTION]... --mode=finish [LIBDIR]... Complete the installation of libtool libraries. Each LIBDIR is a directory that contains libtool libraries. The commands that this mode executes may require superuser privileges. Use the '--dry-run' option if you just want to see what would be executed." ;; install) $ECHO \ "Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND... Install executables or libraries. INSTALL-COMMAND is the installation command. The first component should be either the 'install' or 'cp' program. The following components of INSTALL-COMMAND are treated specially: -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation The rest of the components are interpreted as arguments to that command (only BSD-compatible install options are recognized)." ;; link) $ECHO \ "Usage: $progname [OPTION]... --mode=link LINK-COMMAND... Link object files or libraries together to form another library, or to create an executable program. LINK-COMMAND is a command using the C compiler that you would use to create a program from several object files. The following components of LINK-COMMAND are treated specially: -all-static do not do any dynamic linking at all -avoid-version do not add a version suffix if possible -bindir BINDIR specify path to binaries directory (for systems where libraries must be found in the PATH setting at runtime) -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3) -export-symbols SYMFILE try to export only the symbols listed in SYMFILE -export-symbols-regex REGEX try to export only the symbols matching REGEX -LLIBDIR search LIBDIR for required installed libraries -lNAME OUTPUT-FILE requires the installed library libNAME -module build a library that can dlopened -no-fast-install disable the fast-install mode -no-install link a not-installable executable -no-undefined declare that a library does not refer to external symbols -o OUTPUT-FILE create OUTPUT-FILE from the specified objects -objectlist FILE use a list of object files found in FILE to specify objects -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes) -precious-files-regex REGEX don't remove output files matching REGEX -release RELEASE specify package release information -rpath LIBDIR the created library will eventually be installed in LIBDIR -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries -shared only do dynamic linking of libtool libraries -shrext SUFFIX override the standard shared library file extension -static do not do any dynamic linking of uninstalled libtool libraries -static-libtool-libs do not do any dynamic linking of libtool libraries -version-info CURRENT[:REVISION[:AGE]] specify library version info [each variable defaults to 0] -weak LIBNAME declare that the target provides the LIBNAME interface -Wc,FLAG -Xcompiler FLAG pass linker-specific FLAG directly to the compiler -Wl,FLAG -Xlinker FLAG pass linker-specific FLAG directly to the linker -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC) All other options (arguments beginning with '-') are ignored. Every other argument is treated as a filename. Files ending in '.la' are treated as uninstalled libtool libraries, other files are standard or library object files. If the OUTPUT-FILE ends in '.la', then a libtool library is created, only library objects ('.lo' files) may be specified, and '-rpath' is required, except when creating a convenience library. If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created using 'ar' and 'ranlib', or on Windows using 'lib'. If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file is created, otherwise an executable program is created." ;; uninstall) $ECHO \ "Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... Remove libraries from an installation directory. RM is the name of the program to use to delete files associated with each FILE (typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed to RM. If FILE is a libtool library, all the files associated with it are deleted. Otherwise, only FILE itself is deleted using RM." ;; *) func_fatal_help "invalid operation mode '$opt_mode'" ;; esac echo $ECHO "Try '$progname --help' for more information about other modes." } # Now that we've collected a possible --mode arg, show help if necessary if $opt_help; then if test : = "$opt_help"; then func_mode_help else { func_help noexit for opt_mode in compile link execute install finish uninstall clean; do func_mode_help done } | $SED -n '1p; 2,$s/^Usage:/ or: /p' { func_help noexit for opt_mode in compile link execute install finish uninstall clean; do echo func_mode_help done } | $SED '1d /^When reporting/,/^Report/{ H d } $x /information about other modes/d /more detailed .*MODE/d s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/' fi exit $? fi # func_mode_execute arg... func_mode_execute () { $debug_cmd # The first argument is the command name. cmd=$nonopt test -z "$cmd" && \ func_fatal_help "you must specify a COMMAND" # Handle -dlopen flags immediately. for file in $opt_dlopen; do test -f "$file" \ || func_fatal_help "'$file' is not a file" dir= case $file in *.la) func_resolve_sysroot "$file" file=$func_resolve_sysroot_result # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$file" \ || func_fatal_help "'$lib' is not a valid libtool archive" # Read the libtool library. dlname= library_names= func_source "$file" # Skip this library if it cannot be dlopened. if test -z "$dlname"; then # Warn if it was a shared library. test -n "$library_names" && \ func_warning "'$file' was not linked with '-export-dynamic'" continue fi func_dirname "$file" "" "." dir=$func_dirname_result if test -f "$dir/$objdir/$dlname"; then func_append dir "/$objdir" else if test ! -f "$dir/$dlname"; then func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'" fi fi ;; *.lo) # Just add the directory containing the .lo file. func_dirname "$file" "" "." dir=$func_dirname_result ;; *) func_warning "'-dlopen' is ignored for non-libtool libraries and objects" continue ;; esac # Get the absolute pathname. absdir=`cd "$dir" && pwd` test -n "$absdir" && dir=$absdir # Now add the directory to shlibpath_var. if eval "test -z \"\$$shlibpath_var\""; then eval "$shlibpath_var=\"\$dir\"" else eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\"" fi done # This variable tells wrapper scripts just to set shlibpath_var # rather than running their programs. libtool_execute_magic=$magic # Check if any of the arguments is a wrapper script. args= for file do case $file in -* | *.la | *.lo ) ;; *) # Do a test to see if this is really a libtool program. if func_ltwrapper_script_p "$file"; then func_source "$file" # Transform arg to wrapped name. file=$progdir/$program elif func_ltwrapper_executable_p "$file"; then func_ltwrapper_scriptname "$file" func_source "$func_ltwrapper_scriptname_result" # Transform arg to wrapped name. file=$progdir/$program fi ;; esac # Quote arguments (to preserve shell metacharacters). func_append_quoted args "$file" done if $opt_dry_run; then # Display what would be done. if test -n "$shlibpath_var"; then eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\"" echo "export $shlibpath_var" fi $ECHO "$cmd$args" exit $EXIT_SUCCESS else if test -n "$shlibpath_var"; then # Export the shlibpath_var. eval "export $shlibpath_var" fi # Restore saved environment variables for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES do eval "if test \"\${save_$lt_var+set}\" = set; then $lt_var=\$save_$lt_var; export $lt_var else $lt_unset $lt_var fi" done # Now prepare to actually exec the command. exec_cmd=\$cmd$args fi } test execute = "$opt_mode" && func_mode_execute ${1+"$@"} # func_mode_finish arg... func_mode_finish () { $debug_cmd libs= libdirs= admincmds= for opt in "$nonopt" ${1+"$@"} do if test -d "$opt"; then func_append libdirs " $opt" elif test -f "$opt"; then if func_lalib_unsafe_p "$opt"; then func_append libs " $opt" else func_warning "'$opt' is not a valid libtool archive" fi else func_fatal_error "invalid argument '$opt'" fi done if test -n "$libs"; then if test -n "$lt_sysroot"; then sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" else sysroot_cmd= fi # Remove sysroot references if $opt_dry_run; then for lib in $libs; do echo "removing references to $lt_sysroot and '=' prefixes from $lib" done else tmpdir=`func_mktempdir` for lib in $libs; do $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ > $tmpdir/tmp-la mv -f $tmpdir/tmp-la $lib done ${RM}r "$tmpdir" fi fi if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then for libdir in $libdirs; do if test -n "$finish_cmds"; then # Do each command in the finish commands. func_execute_cmds "$finish_cmds" 'admincmds="$admincmds '"$cmd"'"' fi if test -n "$finish_eval"; then # Do the single finish_eval. eval cmds=\"$finish_eval\" $opt_dry_run || eval "$cmds" || func_append admincmds " $cmds" fi done fi # Exit here if they wanted silent mode. $opt_quiet && exit $EXIT_SUCCESS if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then echo "----------------------------------------------------------------------" echo "Libraries have been installed in:" for libdir in $libdirs; do $ECHO " $libdir" done echo echo "If you ever happen to want to link against installed libraries" echo "in a given directory, LIBDIR, you must either use libtool, and" echo "specify the full pathname of the library, or use the '-LLIBDIR'" echo "flag during linking and do at least one of the following:" if test -n "$shlibpath_var"; then echo " - add LIBDIR to the '$shlibpath_var' environment variable" echo " during execution" fi if test -n "$runpath_var"; then echo " - add LIBDIR to the '$runpath_var' environment variable" echo " during linking" fi if test -n "$hardcode_libdir_flag_spec"; then libdir=LIBDIR eval flag=\"$hardcode_libdir_flag_spec\" $ECHO " - use the '$flag' linker flag" fi if test -n "$admincmds"; then $ECHO " - have your system administrator run these commands:$admincmds" fi if test -f /etc/ld.so.conf; then echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" fi echo echo "See any operating system documentation about shared libraries for" case $host in solaris2.[6789]|solaris2.1[0-9]) echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" echo "pages." ;; *) echo "more information, such as the ld(1) and ld.so(8) manual pages." ;; esac echo "----------------------------------------------------------------------" fi exit $EXIT_SUCCESS } test finish = "$opt_mode" && func_mode_finish ${1+"$@"} # func_mode_install arg... func_mode_install () { $debug_cmd # There may be an optional sh(1) argument at the beginning of # install_prog (especially on Windows NT). if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || # Allow the use of GNU shtool's install command. case $nonopt in *shtool*) :;; *) false;; esac then # Aesthetically quote it. func_quote_for_eval "$nonopt" install_prog="$func_quote_for_eval_result " arg=$1 shift else install_prog= arg=$nonopt fi # The real first argument should be the name of the installation program. # Aesthetically quote it. func_quote_for_eval "$arg" func_append install_prog "$func_quote_for_eval_result" install_shared_prog=$install_prog case " $install_prog " in *[\\\ /]cp\ *) install_cp=: ;; *) install_cp=false ;; esac # We need to accept at least all the BSD install flags. dest= files= opts= prev= install_type= isdir=false stripme= no_mode=: for arg do arg2= if test -n "$dest"; then func_append files " $dest" dest=$arg continue fi case $arg in -d) isdir=: ;; -f) if $install_cp; then :; else prev=$arg fi ;; -g | -m | -o) prev=$arg ;; -s) stripme=" -s" continue ;; -*) ;; *) # If the previous option needed an argument, then skip it. if test -n "$prev"; then if test X-m = "X$prev" && test -n "$install_override_mode"; then arg2=$install_override_mode no_mode=false fi prev= else dest=$arg continue fi ;; esac # Aesthetically quote the argument. func_quote_for_eval "$arg" func_append install_prog " $func_quote_for_eval_result" if test -n "$arg2"; then func_quote_for_eval "$arg2" fi func_append install_shared_prog " $func_quote_for_eval_result" done test -z "$install_prog" && \ func_fatal_help "you must specify an install program" test -n "$prev" && \ func_fatal_help "the '$prev' option requires an argument" if test -n "$install_override_mode" && $no_mode; then if $install_cp; then :; else func_quote_for_eval "$install_override_mode" func_append install_shared_prog " -m $func_quote_for_eval_result" fi fi if test -z "$files"; then if test -z "$dest"; then func_fatal_help "no file or destination specified" else func_fatal_help "you must specify a destination" fi fi # Strip any trailing slash from the destination. func_stripname '' '/' "$dest" dest=$func_stripname_result # Check to see that the destination is a directory. test -d "$dest" && isdir=: if $isdir; then destdir=$dest destname= else func_dirname_and_basename "$dest" "" "." destdir=$func_dirname_result destname=$func_basename_result # Not a directory, so check to see that there is only one file specified. set dummy $files; shift test "$#" -gt 1 && \ func_fatal_help "'$dest' is not a directory" fi case $destdir in [\\/]* | [A-Za-z]:[\\/]*) ;; *) for file in $files; do case $file in *.lo) ;; *) func_fatal_help "'$destdir' must be an absolute directory name" ;; esac done ;; esac # This variable tells wrapper scripts just to set variables rather # than running their programs. libtool_install_magic=$magic staticlibs= future_libdirs= current_libdirs= for file in $files; do # Do each installation. case $file in *.$libext) # Do the static libraries later. func_append staticlibs " $file" ;; *.la) func_resolve_sysroot "$file" file=$func_resolve_sysroot_result # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$file" \ || func_fatal_help "'$file' is not a valid libtool archive" library_names= old_library= relink_command= func_source "$file" # Add the libdir to current_libdirs if it is the destination. if test "X$destdir" = "X$libdir"; then case "$current_libdirs " in *" $libdir "*) ;; *) func_append current_libdirs " $libdir" ;; esac else # Note the libdir as a future libdir. case "$future_libdirs " in *" $libdir "*) ;; *) func_append future_libdirs " $libdir" ;; esac fi func_dirname "$file" "/" "" dir=$func_dirname_result func_append dir "$objdir" if test -n "$relink_command"; then # Determine the prefix the user has applied to our future dir. inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` # Don't allow the user to place us outside of our expected # location b/c this prevents finding dependent libraries that # are installed to the same prefix. # At present, this check doesn't affect windows .dll's that # are installed into $libdir/../bin (currently, that works fine) # but it's something to keep an eye on. test "$inst_prefix_dir" = "$destdir" && \ func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" if test -n "$inst_prefix_dir"; then # Stick the inst_prefix_dir data into the link command. relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` else relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` fi func_warning "relinking '$file'" func_show_eval "$relink_command" \ 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' fi # See the names of the shared library. set dummy $library_names; shift if test -n "$1"; then realname=$1 shift srcname=$realname test -n "$relink_command" && srcname=${realname}T # Install the shared library and build the symlinks. func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ 'exit $?' tstripme=$stripme case $host_os in cygwin* | mingw* | pw32* | cegcc*) case $realname in *.dll.a) tstripme= ;; esac ;; os2*) case $realname in *_dll.a) tstripme= ;; esac ;; esac if test -n "$tstripme" && test -n "$striplib"; then func_show_eval "$striplib $destdir/$realname" 'exit $?' fi if test "$#" -gt 0; then # Delete the old symlinks, and create new ones. # Try 'ln -sf' first, because the 'ln' binary might depend on # the symlink we replace! Solaris /bin/ln does not understand -f, # so we also need to try rm && ln -s. for linkname do test "$linkname" != "$realname" \ && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" done fi # Do each command in the postinstall commands. lib=$destdir/$realname func_execute_cmds "$postinstall_cmds" 'exit $?' fi # Install the pseudo-library for information purposes. func_basename "$file" name=$func_basename_result instname=$dir/${name}i func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' # Maybe install the static library, too. test -n "$old_library" && func_append staticlibs " $dir/$old_library" ;; *.lo) # Install (i.e. copy) a libtool object. # Figure out destination file name, if it wasn't already specified. if test -n "$destname"; then destfile=$destdir/$destname else func_basename "$file" destfile=$func_basename_result destfile=$destdir/$destfile fi # Deduce the name of the destination old-style object file. case $destfile in *.lo) func_lo2o "$destfile" staticdest=$func_lo2o_result ;; *.$objext) staticdest=$destfile destfile= ;; *) func_fatal_help "cannot copy a libtool object to '$destfile'" ;; esac # Install the libtool object if requested. test -n "$destfile" && \ func_show_eval "$install_prog $file $destfile" 'exit $?' # Install the old object if enabled. if test yes = "$build_old_libs"; then # Deduce the name of the old-style object file. func_lo2o "$file" staticobj=$func_lo2o_result func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' fi exit $EXIT_SUCCESS ;; *) # Figure out destination file name, if it wasn't already specified. if test -n "$destname"; then destfile=$destdir/$destname else func_basename "$file" destfile=$func_basename_result destfile=$destdir/$destfile fi # If the file is missing, and there is a .exe on the end, strip it # because it is most likely a libtool script we actually want to # install stripped_ext= case $file in *.exe) if test ! -f "$file"; then func_stripname '' '.exe' "$file" file=$func_stripname_result stripped_ext=.exe fi ;; esac # Do a test to see if this is really a libtool program. case $host in *cygwin* | *mingw*) if func_ltwrapper_executable_p "$file"; then func_ltwrapper_scriptname "$file" wrapper=$func_ltwrapper_scriptname_result else func_stripname '' '.exe' "$file" wrapper=$func_stripname_result fi ;; *) wrapper=$file ;; esac if func_ltwrapper_script_p "$wrapper"; then notinst_deplibs= relink_command= func_source "$wrapper" # Check the variables that should have been set. test -z "$generated_by_libtool_version" && \ func_fatal_error "invalid libtool wrapper script '$wrapper'" finalize=: for lib in $notinst_deplibs; do # Check to see that each library is installed. libdir= if test -f "$lib"; then func_source "$lib" fi libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` if test -n "$libdir" && test ! -f "$libfile"; then func_warning "'$lib' has not been installed in '$libdir'" finalize=false fi done relink_command= func_source "$wrapper" outputname= if test no = "$fast_install" && test -n "$relink_command"; then $opt_dry_run || { if $finalize; then tmpdir=`func_mktempdir` func_basename "$file$stripped_ext" file=$func_basename_result outputname=$tmpdir/$file # Replace the output file specification. relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` $opt_quiet || { func_quote_for_expand "$relink_command" eval "func_echo $func_quote_for_expand_result" } if eval "$relink_command"; then : else func_error "error: relink '$file' with the above command before installing it" $opt_dry_run || ${RM}r "$tmpdir" continue fi file=$outputname else func_warning "cannot relink '$file'" fi } else # Install the binary that we compiled earlier. file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` fi fi # remove .exe since cygwin /usr/bin/install will append another # one anyway case $install_prog,$host in */usr/bin/install*,*cygwin*) case $file:$destfile in *.exe:*.exe) # this is ok ;; *.exe:*) destfile=$destfile.exe ;; *:*.exe) func_stripname '' '.exe' "$destfile" destfile=$func_stripname_result ;; esac ;; esac func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' $opt_dry_run || if test -n "$outputname"; then ${RM}r "$tmpdir" fi ;; esac done for file in $staticlibs; do func_basename "$file" name=$func_basename_result # Set up the ranlib parameters. oldlib=$destdir/$name func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 tool_oldlib=$func_to_tool_file_result func_show_eval "$install_prog \$file \$oldlib" 'exit $?' if test -n "$stripme" && test -n "$old_striplib"; then func_show_eval "$old_striplib $tool_oldlib" 'exit $?' fi # Do each command in the postinstall commands. func_execute_cmds "$old_postinstall_cmds" 'exit $?' done test -n "$future_libdirs" && \ func_warning "remember to run '$progname --finish$future_libdirs'" if test -n "$current_libdirs"; then # Maybe just do a dry run. $opt_dry_run && current_libdirs=" -n$current_libdirs" exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' else exit $EXIT_SUCCESS fi } test install = "$opt_mode" && func_mode_install ${1+"$@"} # func_generate_dlsyms outputname originator pic_p # Extract symbols from dlprefiles and create ${outputname}S.o with # a dlpreopen symbol table. func_generate_dlsyms () { $debug_cmd my_outputname=$1 my_originator=$2 my_pic_p=${3-false} my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` my_dlsyms= if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then if test -n "$NM" && test -n "$global_symbol_pipe"; then my_dlsyms=${my_outputname}S.c else func_error "not configured to extract global symbols from dlpreopened files" fi fi if test -n "$my_dlsyms"; then case $my_dlsyms in "") ;; *.c) # Discover the nlist of each of the dlfiles. nlist=$output_objdir/$my_outputname.nm func_show_eval "$RM $nlist ${nlist}S ${nlist}T" # Parse the name list into a source file. func_verbose "creating $output_objdir/$my_dlsyms" $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ /* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ /* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ #ifdef __cplusplus extern \"C\" { #endif #if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) #pragma GCC diagnostic ignored \"-Wstrict-prototypes\" #endif /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) /* External symbol declarations for the compiler. */\ " if test yes = "$dlself"; then func_verbose "generating symbol list for '$output'" $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" # Add our own program objects to the symbol list. progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` for progfile in $progfiles; do func_to_tool_file "$progfile" func_convert_file_msys_to_w32 func_verbose "extracting global C symbols from '$func_to_tool_file_result'" $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" done if test -n "$exclude_expsyms"; then $opt_dry_run || { eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' } fi if test -n "$export_symbols_regex"; then $opt_dry_run || { eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' } fi # Prepare the list of exported symbols if test -z "$export_symbols"; then export_symbols=$output_objdir/$outputname.exp $opt_dry_run || { $RM $export_symbols eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' case $host in *cygwin* | *mingw* | *cegcc* ) eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' ;; esac } else $opt_dry_run || { eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' case $host in *cygwin* | *mingw* | *cegcc* ) eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' ;; esac } fi fi for dlprefile in $dlprefiles; do func_verbose "extracting global C symbols from '$dlprefile'" func_basename "$dlprefile" name=$func_basename_result case $host in *cygwin* | *mingw* | *cegcc* ) # if an import library, we need to obtain dlname if func_win32_import_lib_p "$dlprefile"; then func_tr_sh "$dlprefile" eval "curr_lafile=\$libfile_$func_tr_sh_result" dlprefile_dlbasename= if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then # Use subshell, to avoid clobbering current variable values dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` if test -n "$dlprefile_dlname"; then func_basename "$dlprefile_dlname" dlprefile_dlbasename=$func_basename_result else # no lafile. user explicitly requested -dlpreopen . $sharedlib_from_linklib_cmd "$dlprefile" dlprefile_dlbasename=$sharedlib_from_linklib_result fi fi $opt_dry_run || { if test -n "$dlprefile_dlbasename"; then eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' else func_warning "Could not compute DLL name from $name" eval '$ECHO ": $name " >> "$nlist"' fi func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" } else # not an import lib $opt_dry_run || { eval '$ECHO ": $name " >> "$nlist"' func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" } fi ;; *) $opt_dry_run || { eval '$ECHO ": $name " >> "$nlist"' func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" } ;; esac done $opt_dry_run || { # Make sure we have at least an empty file. test -f "$nlist" || : > "$nlist" if test -n "$exclude_expsyms"; then $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T $MV "$nlist"T "$nlist" fi # Try sorting and uniquifying the output. if $GREP -v "^: " < "$nlist" | if sort -k 3 /dev/null 2>&1; then sort -k 3 else sort +2 fi | uniq > "$nlist"S; then : else $GREP -v "^: " < "$nlist" > "$nlist"S fi if test -f "$nlist"S; then eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' else echo '/* NONE */' >> "$output_objdir/$my_dlsyms" fi func_show_eval '$RM "${nlist}I"' if test -n "$global_symbol_to_import"; then eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' fi echo >> "$output_objdir/$my_dlsyms" "\ /* The mapping between symbol names and symbols. */ typedef struct { const char *name; void *address; } lt_dlsymlist; extern LT_DLSYM_CONST lt_dlsymlist lt_${my_prefix}_LTX_preloaded_symbols[];\ " if test -s "$nlist"I; then echo >> "$output_objdir/$my_dlsyms" "\ static void lt_syminit(void) { LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; for (; symbol->name; ++symbol) {" $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" echo >> "$output_objdir/$my_dlsyms" "\ } }" fi echo >> "$output_objdir/$my_dlsyms" "\ LT_DLSYM_CONST lt_dlsymlist lt_${my_prefix}_LTX_preloaded_symbols[] = { {\"$my_originator\", (void *) 0}," if test -s "$nlist"I; then echo >> "$output_objdir/$my_dlsyms" "\ {\"@INIT@\", (void *) <_syminit}," fi case $need_lib_prefix in no) eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" ;; *) eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" ;; esac echo >> "$output_objdir/$my_dlsyms" "\ {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt_${my_prefix}_LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif\ " } # !$opt_dry_run pic_flag_for_symtable= case "$compile_command " in *" -static "*) ;; *) case $host in # compiling the symbol table file with pic_flag works around # a FreeBSD bug that causes programs to crash when -lm is # linked before any other PIC object. But we must not use # pic_flag when linking with -static. The problem exists in # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; *-*-hpux*) pic_flag_for_symtable=" $pic_flag" ;; *) $my_pic_p && pic_flag_for_symtable=" $pic_flag" ;; esac ;; esac symtab_cflags= for arg in $LTCFLAGS; do case $arg in -pie | -fpie | -fPIE) ;; *) func_append symtab_cflags " $arg" ;; esac done # Now compile the dynamic symbol file. func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' # Clean up the generated files. func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' # Transform the symbol file into the correct name. symfileobj=$output_objdir/${my_outputname}S.$objext case $host in *cygwin* | *mingw* | *cegcc* ) if test -f "$output_objdir/$my_outputname.def"; then compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` else compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` fi ;; *) compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` ;; esac ;; *) func_fatal_error "unknown suffix for '$my_dlsyms'" ;; esac else # We keep going just in case the user didn't refer to # lt_preloaded_symbols. The linker will fail if global_symbol_pipe # really was required. # Nullify the symbol file. compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` fi } # func_cygming_gnu_implib_p ARG # This predicate returns with zero status (TRUE) if # ARG is a GNU/binutils-style import library. Returns # with nonzero status (FALSE) otherwise. func_cygming_gnu_implib_p () { $debug_cmd func_to_tool_file "$1" func_convert_file_msys_to_w32 func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` test -n "$func_cygming_gnu_implib_tmp" } # func_cygming_ms_implib_p ARG # This predicate returns with zero status (TRUE) if # ARG is an MS-style import library. Returns # with nonzero status (FALSE) otherwise. func_cygming_ms_implib_p () { $debug_cmd func_to_tool_file "$1" func_convert_file_msys_to_w32 func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` test -n "$func_cygming_ms_implib_tmp" } # func_win32_libid arg # return the library type of file 'arg' # # Need a lot of goo to handle *both* DLLs and import libs # Has to be a shell function in order to 'eat' the argument # that is supplied when $file_magic_command is called. # Despite the name, also deal with 64 bit binaries. func_win32_libid () { $debug_cmd win32_libid_type=unknown win32_fileres=`file -L $1 2>/dev/null` case $win32_fileres in *ar\ archive\ import\ library*) # definitely import win32_libid_type="x86 archive import" ;; *ar\ archive*) # could be an import, or static # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then case $nm_interface in "MS dumpbin") if func_cygming_ms_implib_p "$1" || func_cygming_gnu_implib_p "$1" then win32_nmres=import else win32_nmres= fi ;; *) func_to_tool_file "$1" func_convert_file_msys_to_w32 win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | $SED -n -e ' 1,100{ / I /{ s|.*|import| p q } }'` ;; esac case $win32_nmres in import*) win32_libid_type="x86 archive import";; *) win32_libid_type="x86 archive static";; esac fi ;; *DLL*) win32_libid_type="x86 DLL" ;; *executable*) # but shell scripts are "executable" too... case $win32_fileres in *MS\ Windows\ PE\ Intel*) win32_libid_type="x86 DLL" ;; esac ;; esac $ECHO "$win32_libid_type" } # func_cygming_dll_for_implib ARG # # Platform-specific function to extract the # name of the DLL associated with the specified # import library ARG. # Invoked by eval'ing the libtool variable # $sharedlib_from_linklib_cmd # Result is available in the variable # $sharedlib_from_linklib_result func_cygming_dll_for_implib () { $debug_cmd sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` } # func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs # # The is the core of a fallback implementation of a # platform-specific function to extract the name of the # DLL associated with the specified import library LIBNAME. # # SECTION_NAME is either .idata$6 or .idata$7, depending # on the platform and compiler that created the implib. # # Echos the name of the DLL associated with the # specified import library. func_cygming_dll_for_implib_fallback_core () { $debug_cmd match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` $OBJDUMP -s --section "$1" "$2" 2>/dev/null | $SED '/^Contents of section '"$match_literal"':/{ # Place marker at beginning of archive member dllname section s/.*/====MARK====/ p d } # These lines can sometimes be longer than 43 characters, but # are always uninteresting /:[ ]*file format pe[i]\{,1\}-/d /^In archive [^:]*:/d # Ensure marker is printed /^====MARK====/p # Remove all lines with less than 43 characters /^.\{43\}/!d # From remaining lines, remove first 43 characters s/^.\{43\}//' | $SED -n ' # Join marker and all lines until next marker into a single line /^====MARK====/ b para H $ b para b :para x s/\n//g # Remove the marker s/^====MARK====// # Remove trailing dots and whitespace s/[\. \t]*$// # Print /./p' | # we now have a list, one entry per line, of the stringified # contents of the appropriate section of all members of the # archive that possess that section. Heuristic: eliminate # all those that have a first or second character that is # a '.' (that is, objdump's representation of an unprintable # character.) This should work for all archives with less than # 0x302f exports -- but will fail for DLLs whose name actually # begins with a literal '.' or a single character followed by # a '.'. # # Of those that remain, print the first one. $SED -e '/^\./d;/^.\./d;q' } # func_cygming_dll_for_implib_fallback ARG # Platform-specific function to extract the # name of the DLL associated with the specified # import library ARG. # # This fallback implementation is for use when $DLLTOOL # does not support the --identify-strict option. # Invoked by eval'ing the libtool variable # $sharedlib_from_linklib_cmd # Result is available in the variable # $sharedlib_from_linklib_result func_cygming_dll_for_implib_fallback () { $debug_cmd if func_cygming_gnu_implib_p "$1"; then # binutils import library sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` elif func_cygming_ms_implib_p "$1"; then # ms-generated import library sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` else # unknown sharedlib_from_linklib_result= fi } # func_extract_an_archive dir oldlib func_extract_an_archive () { $debug_cmd f_ex_an_ar_dir=$1; shift f_ex_an_ar_oldlib=$1 if test yes = "$lock_old_archive_extraction"; then lockfile=$f_ex_an_ar_oldlib.lock until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do func_echo "Waiting for $lockfile to be removed" sleep 2 done fi func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ 'stat=$?; rm -f "$lockfile"; exit $stat' if test yes = "$lock_old_archive_extraction"; then $opt_dry_run || rm -f "$lockfile" fi if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then : else func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" fi } # func_extract_archives gentop oldlib ... func_extract_archives () { $debug_cmd my_gentop=$1; shift my_oldlibs=${1+"$@"} my_oldobjs= my_xlib= my_xabs= my_xdir= for my_xlib in $my_oldlibs; do # Extract the objects. case $my_xlib in [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; *) my_xabs=`pwd`"/$my_xlib" ;; esac func_basename "$my_xlib" my_xlib=$func_basename_result my_xlib_u=$my_xlib while :; do case " $extracted_archives " in *" $my_xlib_u "*) func_arith $extracted_serial + 1 extracted_serial=$func_arith_result my_xlib_u=lt$extracted_serial-$my_xlib ;; *) break ;; esac done extracted_archives="$extracted_archives $my_xlib_u" my_xdir=$my_gentop/$my_xlib_u func_mkdir_p "$my_xdir" case $host in *-darwin*) func_verbose "Extracting $my_xabs" # Do not bother doing anything if just a dry run $opt_dry_run || { darwin_orig_dir=`pwd` cd $my_xdir || exit $? darwin_archive=$my_xabs darwin_curdir=`pwd` func_basename "$darwin_archive" darwin_base_archive=$func_basename_result darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` if test -n "$darwin_arches"; then darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` darwin_arch= func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" for darwin_arch in $darwin_arches; do func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" cd "unfat-$$/$darwin_base_archive-$darwin_arch" func_extract_an_archive "`pwd`" "$darwin_base_archive" cd "$darwin_curdir" $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" done # $darwin_arches ## Okay now we've a bunch of thin objects, gotta fatten them up :) darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` darwin_file= darwin_files= for darwin_file in $darwin_filelist; do darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` $LIPO -create -output "$darwin_file" $darwin_files done # $darwin_filelist $RM -rf unfat-$$ cd "$darwin_orig_dir" else cd $darwin_orig_dir func_extract_an_archive "$my_xdir" "$my_xabs" fi # $darwin_arches } # !$opt_dry_run ;; *) func_extract_an_archive "$my_xdir" "$my_xabs" ;; esac my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` done func_extract_archives_result=$my_oldobjs } # func_emit_wrapper [arg=no] # # Emit a libtool wrapper script on stdout. # Don't directly open a file because we may want to # incorporate the script contents within a cygwin/mingw # wrapper executable. Must ONLY be called from within # func_mode_link because it depends on a number of variables # set therein. # # ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR # variable will take. If 'yes', then the emitted script # will assume that the directory where it is stored is # the $objdir directory. This is a cygwin/mingw-specific # behavior. func_emit_wrapper () { func_emit_wrapper_arg1=${1-no} $ECHO "\ #! $SHELL # $output - temporary wrapper script for $objdir/$outputname # Generated by $PROGRAM (GNU $PACKAGE) $VERSION # # The $output program cannot be directly executed until all the libtool # libraries that it depends on are installed. # # This wrapper script should never be moved out of the build directory. # If it is, it will not operate correctly. # Sed substitution that helps us do robust quoting. It backslashifies # metacharacters that are still active within double-quoted strings. sed_quote_subst='$sed_quote_subst' # Be Bourne compatible if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which # is contrary to our usage. Disable this feature. alias -g '\${1+\"\$@\"}'='\"\$@\"' setopt NO_GLOB_SUBST else case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac fi BIN_SH=xpg4; export BIN_SH # for Tru64 DUALCASE=1; export DUALCASE # for MKS sh # The HP-UX ksh and POSIX shell print the target directory to stdout # if CDPATH is set. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH relink_command=\"$relink_command\" # This environment variable determines our operation mode. if test \"\$libtool_install_magic\" = \"$magic\"; then # install mode needs the following variables: generated_by_libtool_version='$macro_version' notinst_deplibs='$notinst_deplibs' else # When we are sourced in execute mode, \$file and \$ECHO are already set. if test \"\$libtool_execute_magic\" != \"$magic\"; then file=\"\$0\"" qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` $ECHO "\ # A function that is used when there is no print builtin or printf. func_fallback_echo () { eval 'cat <<_LTECHO_EOF \$1 _LTECHO_EOF' } ECHO=\"$qECHO\" fi # Very basic option parsing. These options are (a) specific to # the libtool wrapper, (b) are identical between the wrapper # /script/ and the wrapper /executable/ that is used only on # windows platforms, and (c) all begin with the string "--lt-" # (application programs are unlikely to have options that match # this pattern). # # There are only two supported options: --lt-debug and # --lt-dump-script. There is, deliberately, no --lt-help. # # The first argument to this parsing function should be the # script's $0 value, followed by "$@". lt_option_debug= func_parse_lt_options () { lt_script_arg0=\$0 shift for lt_opt do case \"\$lt_opt\" in --lt-debug) lt_option_debug=1 ;; --lt-dump-script) lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` cat \"\$lt_dump_D/\$lt_dump_F\" exit 0 ;; --lt-*) \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 exit 1 ;; esac done # Print the debug banner immediately: if test -n \"\$lt_option_debug\"; then echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2 fi } # Used when --lt-debug. Prints its arguments to stdout # (redirection is the responsibility of the caller) func_lt_dump_args () { lt_dump_args_N=1; for lt_arg do \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\" lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` done } # Core function for launching the target application func_exec_program_core () { " case $host in # Backslashes separate directories on plain windows *-*-mingw | *-*-os2* | *-cegcc*) $ECHO "\ if test -n \"\$lt_option_debug\"; then \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2 func_lt_dump_args \${1+\"\$@\"} 1>&2 fi exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} " ;; *) $ECHO "\ if test -n \"\$lt_option_debug\"; then \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2 func_lt_dump_args \${1+\"\$@\"} 1>&2 fi exec \"\$progdir/\$program\" \${1+\"\$@\"} " ;; esac $ECHO "\ \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 exit 1 } # A function to encapsulate launching the target application # Strips options in the --lt-* namespace from \$@ and # launches target application with the remaining arguments. func_exec_program () { case \" \$* \" in *\\ --lt-*) for lt_wr_arg do case \$lt_wr_arg in --lt-*) ;; *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; esac shift done ;; esac func_exec_program_core \${1+\"\$@\"} } # Parse options func_parse_lt_options \"\$0\" \${1+\"\$@\"} # Find the directory that this script lives in. thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` test \"x\$thisdir\" = \"x\$file\" && thisdir=. # Follow symbolic links until we get to the real thisdir. file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` while test -n \"\$file\"; do destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` # If there was a directory component, then change thisdir. if test \"x\$destdir\" != \"x\$file\"; then case \"\$destdir\" in [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; *) thisdir=\"\$thisdir/\$destdir\" ;; esac fi file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` done # Usually 'no', except on cygwin/mingw when embedded into # the cwrapper. WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then # special case for '.' if test \"\$thisdir\" = \".\"; then thisdir=\`pwd\` fi # remove .libs from thisdir case \"\$thisdir\" in *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; $objdir ) thisdir=. ;; esac fi # Try to get the absolute directory name. absdir=\`cd \"\$thisdir\" && pwd\` test -n \"\$absdir\" && thisdir=\"\$absdir\" " if test yes = "$fast_install"; then $ECHO "\ program=lt-'$outputname'$exeext progdir=\"\$thisdir/$objdir\" if test ! -f \"\$progdir/\$program\" || { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\ test \"X\$file\" != \"X\$progdir/\$program\"; }; then file=\"\$\$-\$program\" if test ! -d \"\$progdir\"; then $MKDIR \"\$progdir\" else $RM \"\$progdir/\$file\" fi" $ECHO "\ # relink executable if necessary if test -n \"\$relink_command\"; then if relink_command_output=\`eval \$relink_command 2>&1\`; then : else \$ECHO \"\$relink_command_output\" >&2 $RM \"\$progdir/\$file\" exit 1 fi fi $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || { $RM \"\$progdir/\$program\"; $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } $RM \"\$progdir/\$file\" fi" else $ECHO "\ program='$outputname' progdir=\"\$thisdir/$objdir\" " fi $ECHO "\ if test -f \"\$progdir/\$program\"; then" # fixup the dll searchpath if we need to. # # Fix the DLL searchpath if we need to. Do this before prepending # to shlibpath, because on Windows, both are PATH and uninstalled # libraries must come first. if test -n "$dllsearchpath"; then $ECHO "\ # Add the dll search path components to the executable PATH PATH=$dllsearchpath:\$PATH " fi # Export our shlibpath_var if we have one. if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then $ECHO "\ # Add our own library path to $shlibpath_var $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" # Some systems cannot cope with colon-terminated $shlibpath_var # The second colon is a workaround for a bug in BeOS R4 sed $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` export $shlibpath_var " fi $ECHO "\ if test \"\$libtool_execute_magic\" != \"$magic\"; then # Run the actual program with our arguments. func_exec_program \${1+\"\$@\"} fi else # The program doesn't exist. \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 exit 1 fi fi\ " } # func_emit_cwrapperexe_src # emit the source code for a wrapper executable on stdout # Must ONLY be called from within func_mode_link because # it depends on a number of variable set therein. func_emit_cwrapperexe_src () { cat < #include #ifdef _MSC_VER # include # include # include #else # include # include # ifdef __CYGWIN__ # include # endif #endif #include #include #include #include #include #include #include #include #define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) /* declarations of non-ANSI functions */ #if defined __MINGW32__ # ifdef __STRICT_ANSI__ int _putenv (const char *); # endif #elif defined __CYGWIN__ # ifdef __STRICT_ANSI__ char *realpath (const char *, char *); int putenv (char *); int setenv (const char *, const char *, int); # endif /* #elif defined other_platform || defined ... */ #endif /* portability defines, excluding path handling macros */ #if defined _MSC_VER # define setmode _setmode # define stat _stat # define chmod _chmod # define getcwd _getcwd # define putenv _putenv # define S_IXUSR _S_IEXEC #elif defined __MINGW32__ # define setmode _setmode # define stat _stat # define chmod _chmod # define getcwd _getcwd # define putenv _putenv #elif defined __CYGWIN__ # define HAVE_SETENV # define FOPEN_WB "wb" /* #elif defined other platforms ... */ #endif #if defined PATH_MAX # define LT_PATHMAX PATH_MAX #elif defined MAXPATHLEN # define LT_PATHMAX MAXPATHLEN #else # define LT_PATHMAX 1024 #endif #ifndef S_IXOTH # define S_IXOTH 0 #endif #ifndef S_IXGRP # define S_IXGRP 0 #endif /* path handling portability macros */ #ifndef DIR_SEPARATOR # define DIR_SEPARATOR '/' # define PATH_SEPARATOR ':' #endif #if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ defined __OS2__ # define HAVE_DOS_BASED_FILE_SYSTEM # define FOPEN_WB "wb" # ifndef DIR_SEPARATOR_2 # define DIR_SEPARATOR_2 '\\' # endif # ifndef PATH_SEPARATOR_2 # define PATH_SEPARATOR_2 ';' # endif #endif #ifndef DIR_SEPARATOR_2 # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) #else /* DIR_SEPARATOR_2 */ # define IS_DIR_SEPARATOR(ch) \ (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) #endif /* DIR_SEPARATOR_2 */ #ifndef PATH_SEPARATOR_2 # define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) #else /* PATH_SEPARATOR_2 */ # define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) #endif /* PATH_SEPARATOR_2 */ #ifndef FOPEN_WB # define FOPEN_WB "w" #endif #ifndef _O_BINARY # define _O_BINARY 0 #endif #define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) #define XFREE(stale) do { \ if (stale) { free (stale); stale = 0; } \ } while (0) #if defined LT_DEBUGWRAPPER static int lt_debug = 1; #else static int lt_debug = 0; #endif const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ void *xmalloc (size_t num); char *xstrdup (const char *string); const char *base_name (const char *name); char *find_executable (const char *wrapper); char *chase_symlinks (const char *pathspec); int make_executable (const char *path); int check_executable (const char *path); char *strendzap (char *str, const char *pat); void lt_debugprintf (const char *file, int line, const char *fmt, ...); void lt_fatal (const char *file, int line, const char *message, ...); static const char *nonnull (const char *s); static const char *nonempty (const char *s); void lt_setenv (const char *name, const char *value); char *lt_extend_str (const char *orig_value, const char *add, int to_end); void lt_update_exe_path (const char *name, const char *value); void lt_update_lib_path (const char *name, const char *value); char **prepare_spawn (char **argv); void lt_dump_script (FILE *f); EOF cat <= 0) && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) return 1; else return 0; } int make_executable (const char *path) { int rval = 0; struct stat st; lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", nonempty (path)); if ((!path) || (!*path)) return 0; if (stat (path, &st) >= 0) { rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); } return rval; } /* Searches for the full path of the wrapper. Returns newly allocated full path name if found, NULL otherwise Does not chase symlinks, even on platforms that support them. */ char * find_executable (const char *wrapper) { int has_slash = 0; const char *p; const char *p_next; /* static buffer for getcwd */ char tmp[LT_PATHMAX + 1]; size_t tmp_len; char *concat_name; lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", nonempty (wrapper)); if ((wrapper == NULL) || (*wrapper == '\0')) return NULL; /* Absolute path? */ #if defined HAVE_DOS_BASED_FILE_SYSTEM if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') { concat_name = xstrdup (wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } else { #endif if (IS_DIR_SEPARATOR (wrapper[0])) { concat_name = xstrdup (wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } #if defined HAVE_DOS_BASED_FILE_SYSTEM } #endif for (p = wrapper; *p; p++) if (*p == '/') { has_slash = 1; break; } if (!has_slash) { /* no slashes; search PATH */ const char *path = getenv ("PATH"); if (path != NULL) { for (p = path; *p; p = p_next) { const char *q; size_t p_len; for (q = p; *q; q++) if (IS_PATH_SEPARATOR (*q)) break; p_len = (size_t) (q - p); p_next = (*q == '\0' ? q : q + 1); if (p_len == 0) { /* empty path: current directory */ if (getcwd (tmp, LT_PATHMAX) == NULL) lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", nonnull (strerror (errno))); tmp_len = strlen (tmp); concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, tmp, tmp_len); concat_name[tmp_len] = '/'; strcpy (concat_name + tmp_len + 1, wrapper); } else { concat_name = XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, p, p_len); concat_name[p_len] = '/'; strcpy (concat_name + p_len + 1, wrapper); } if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } } /* not found in PATH; assume curdir */ } /* Relative path | not found in path: prepend cwd */ if (getcwd (tmp, LT_PATHMAX) == NULL) lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", nonnull (strerror (errno))); tmp_len = strlen (tmp); concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, tmp, tmp_len); concat_name[tmp_len] = '/'; strcpy (concat_name + tmp_len + 1, wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); return NULL; } char * chase_symlinks (const char *pathspec) { #ifndef S_ISLNK return xstrdup (pathspec); #else char buf[LT_PATHMAX]; struct stat s; char *tmp_pathspec = xstrdup (pathspec); char *p; int has_symlinks = 0; while (strlen (tmp_pathspec) && !has_symlinks) { lt_debugprintf (__FILE__, __LINE__, "checking path component for symlinks: %s\n", tmp_pathspec); if (lstat (tmp_pathspec, &s) == 0) { if (S_ISLNK (s.st_mode) != 0) { has_symlinks = 1; break; } /* search backwards for last DIR_SEPARATOR */ p = tmp_pathspec + strlen (tmp_pathspec) - 1; while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) p--; if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) { /* no more DIR_SEPARATORS left */ break; } *p = '\0'; } else { lt_fatal (__FILE__, __LINE__, "error accessing file \"%s\": %s", tmp_pathspec, nonnull (strerror (errno))); } } XFREE (tmp_pathspec); if (!has_symlinks) { return xstrdup (pathspec); } tmp_pathspec = realpath (pathspec, buf); if (tmp_pathspec == 0) { lt_fatal (__FILE__, __LINE__, "could not follow symlinks for %s", pathspec); } return xstrdup (tmp_pathspec); #endif } char * strendzap (char *str, const char *pat) { size_t len, patlen; assert (str != NULL); assert (pat != NULL); len = strlen (str); patlen = strlen (pat); if (patlen <= len) { str += len - patlen; if (STREQ (str, pat)) *str = '\0'; } return str; } void lt_debugprintf (const char *file, int line, const char *fmt, ...) { va_list args; if (lt_debug) { (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); va_start (args, fmt); (void) vfprintf (stderr, fmt, args); va_end (args); } } static void lt_error_core (int exit_status, const char *file, int line, const char *mode, const char *message, va_list ap) { fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); vfprintf (stderr, message, ap); fprintf (stderr, ".\n"); if (exit_status >= 0) exit (exit_status); } void lt_fatal (const char *file, int line, const char *message, ...) { va_list ap; va_start (ap, message); lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); va_end (ap); } static const char * nonnull (const char *s) { return s ? s : "(null)"; } static const char * nonempty (const char *s) { return (s && !*s) ? "(empty)" : nonnull (s); } void lt_setenv (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_setenv) setting '%s' to '%s'\n", nonnull (name), nonnull (value)); { #ifdef HAVE_SETENV /* always make a copy, for consistency with !HAVE_SETENV */ char *str = xstrdup (value); setenv (name, str, 1); #else size_t len = strlen (name) + 1 + strlen (value) + 1; char *str = XMALLOC (char, len); sprintf (str, "%s=%s", name, value); if (putenv (str) != EXIT_SUCCESS) { XFREE (str); } #endif } } char * lt_extend_str (const char *orig_value, const char *add, int to_end) { char *new_value; if (orig_value && *orig_value) { size_t orig_value_len = strlen (orig_value); size_t add_len = strlen (add); new_value = XMALLOC (char, add_len + orig_value_len + 1); if (to_end) { strcpy (new_value, orig_value); strcpy (new_value + orig_value_len, add); } else { strcpy (new_value, add); strcpy (new_value + add_len, orig_value); } } else { new_value = xstrdup (add); } return new_value; } void lt_update_exe_path (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", nonnull (name), nonnull (value)); if (name && *name && value && *value) { char *new_value = lt_extend_str (getenv (name), value, 0); /* some systems can't cope with a ':'-terminated path #' */ size_t len = strlen (new_value); while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) { new_value[--len] = '\0'; } lt_setenv (name, new_value); XFREE (new_value); } } void lt_update_lib_path (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", nonnull (name), nonnull (value)); if (name && *name && value && *value) { char *new_value = lt_extend_str (getenv (name), value, 0); lt_setenv (name, new_value); XFREE (new_value); } } EOF case $host_os in mingw*) cat <<"EOF" /* Prepares an argument vector before calling spawn(). Note that spawn() does not by itself call the command interpreter (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); GetVersionEx(&v); v.dwPlatformId == VER_PLATFORM_WIN32_NT; }) ? "cmd.exe" : "command.com"). Instead it simply concatenates the arguments, separated by ' ', and calls CreateProcess(). We must quote the arguments since Win32 CreateProcess() interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a special way: - Space and tab are interpreted as delimiters. They are not treated as delimiters if they are surrounded by double quotes: "...". - Unescaped double quotes are removed from the input. Their only effect is that within double quotes, space and tab are treated like normal characters. - Backslashes not followed by double quotes are not special. - But 2*n+1 backslashes followed by a double quote become n backslashes followed by a double quote (n >= 0): \" -> " \\\" -> \" \\\\\" -> \\" */ #define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" #define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" char ** prepare_spawn (char **argv) { size_t argc; char **new_argv; size_t i; /* Count number of arguments. */ for (argc = 0; argv[argc] != NULL; argc++) ; /* Allocate new argument vector. */ new_argv = XMALLOC (char *, argc + 1); /* Put quoted arguments into the new argument vector. */ for (i = 0; i < argc; i++) { const char *string = argv[i]; if (string[0] == '\0') new_argv[i] = xstrdup ("\"\""); else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) { int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); size_t length; unsigned int backslashes; const char *s; char *quoted_string; char *p; length = 0; backslashes = 0; if (quote_around) length++; for (s = string; *s != '\0'; s++) { char c = *s; if (c == '"') length += backslashes + 1; length++; if (c == '\\') backslashes++; else backslashes = 0; } if (quote_around) length += backslashes + 1; quoted_string = XMALLOC (char, length + 1); p = quoted_string; backslashes = 0; if (quote_around) *p++ = '"'; for (s = string; *s != '\0'; s++) { char c = *s; if (c == '"') { unsigned int j; for (j = backslashes + 1; j > 0; j--) *p++ = '\\'; } *p++ = c; if (c == '\\') backslashes++; else backslashes = 0; } if (quote_around) { unsigned int j; for (j = backslashes; j > 0; j--) *p++ = '\\'; *p++ = '"'; } *p = '\0'; new_argv[i] = quoted_string; } else new_argv[i] = (char *) string; } new_argv[argc] = NULL; return new_argv; } EOF ;; esac cat <<"EOF" void lt_dump_script (FILE* f) { EOF func_emit_wrapper yes | $SED -n -e ' s/^\(.\{79\}\)\(..*\)/\1\ \2/ h s/\([\\"]\)/\\\1/g s/$/\\n/ s/\([^\n]*\).*/ fputs ("\1", f);/p g D' cat <<"EOF" } EOF } # end: func_emit_cwrapperexe_src # func_win32_import_lib_p ARG # True if ARG is an import lib, as indicated by $file_magic_cmd func_win32_import_lib_p () { $debug_cmd case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in *import*) : ;; *) false ;; esac } # func_suncc_cstd_abi # !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! # Several compiler flags select an ABI that is incompatible with the # Cstd library. Avoid specifying it if any are in CXXFLAGS. func_suncc_cstd_abi () { $debug_cmd case " $compile_command " in *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) suncc_use_cstd_abi=no ;; *) suncc_use_cstd_abi=yes ;; esac } # func_mode_link arg... func_mode_link () { $debug_cmd case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) # It is impossible to link a dll without this setting, and # we shouldn't force the makefile maintainer to figure out # what system we are compiling for in order to pass an extra # flag for every libtool invocation. # allow_undefined=no # FIXME: Unfortunately, there are problems with the above when trying # to make a dll that has undefined symbols, in which case not # even a static library is built. For now, we need to specify # -no-undefined on the libtool link line when we can be certain # that all symbols are satisfied, otherwise we get a static library. allow_undefined=yes ;; *) allow_undefined=yes ;; esac libtool_args=$nonopt base_compile="$nonopt $@" compile_command=$nonopt finalize_command=$nonopt compile_rpath= finalize_rpath= compile_shlibpath= finalize_shlibpath= convenience= old_convenience= deplibs= old_deplibs= compiler_flags= linker_flags= dllsearchpath= lib_search_path=`pwd` inst_prefix_dir= new_inherited_linker_flags= avoid_version=no bindir= dlfiles= dlprefiles= dlself=no export_dynamic=no export_symbols= export_symbols_regex= generated= libobjs= ltlibs= module=no no_install=no objs= os2dllname= non_pic_objects= precious_files_regex= prefer_static_libs=no preload=false prev= prevarg= release= rpath= xrpath= perm_rpath= temp_rpath= thread_safe=no vinfo= vinfo_number=no weak_libs= single_module=$wl-single_module func_infer_tag $base_compile # We need to know -static, to get the right output filenames. for arg do case $arg in -shared) test yes != "$build_libtool_libs" \ && func_fatal_configuration "cannot build a shared library" build_old_libs=no break ;; -all-static | -static | -static-libtool-libs) case $arg in -all-static) if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then func_warning "complete static linking is impossible in this configuration" fi if test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=yes ;; -static) if test -z "$pic_flag" && test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=built ;; -static-libtool-libs) if test -z "$pic_flag" && test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=yes ;; esac build_libtool_libs=no build_old_libs=yes break ;; esac done # See if our shared archives depend on static archives. test -n "$old_archive_from_new_cmds" && build_old_libs=yes # Go through the arguments, transforming them on the way. while test "$#" -gt 0; do arg=$1 shift func_quote_for_eval "$arg" qarg=$func_quote_for_eval_unquoted_result func_append libtool_args " $func_quote_for_eval_result" # If the previous option needs an argument, assign it. if test -n "$prev"; then case $prev in output) func_append compile_command " @OUTPUT@" func_append finalize_command " @OUTPUT@" ;; esac case $prev in bindir) bindir=$arg prev= continue ;; dlfiles|dlprefiles) $preload || { # Add the symbol object into the linking commands. func_append compile_command " @SYMFILE@" func_append finalize_command " @SYMFILE@" preload=: } case $arg in *.la | *.lo) ;; # We handle these cases below. force) if test no = "$dlself"; then dlself=needless export_dynamic=yes fi prev= continue ;; self) if test dlprefiles = "$prev"; then dlself=yes elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then dlself=yes else dlself=needless export_dynamic=yes fi prev= continue ;; *) if test dlfiles = "$prev"; then func_append dlfiles " $arg" else func_append dlprefiles " $arg" fi prev= continue ;; esac ;; expsyms) export_symbols=$arg test -f "$arg" \ || func_fatal_error "symbol file '$arg' does not exist" prev= continue ;; expsyms_regex) export_symbols_regex=$arg prev= continue ;; framework) case $host in *-*-darwin*) case "$deplibs " in *" $qarg.ltframework "*) ;; *) func_append deplibs " $qarg.ltframework" # this is fixed later ;; esac ;; esac prev= continue ;; inst_prefix) inst_prefix_dir=$arg prev= continue ;; mllvm) # Clang does not use LLVM to link, so we can simply discard any # '-mllvm $arg' options when doing the link step. prev= continue ;; objectlist) if test -f "$arg"; then save_arg=$arg moreargs= for fil in `cat "$save_arg"` do # func_append moreargs " $fil" arg=$fil # A libtool-controlled object. # Check to see that this really is a libtool object. if func_lalib_unsafe_p "$arg"; then pic_object= non_pic_object= # Read the .lo file func_source "$arg" if test -z "$pic_object" || test -z "$non_pic_object" || test none = "$pic_object" && test none = "$non_pic_object"; then func_fatal_error "cannot find name of object for '$arg'" fi # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result if test none != "$pic_object"; then # Prepend the subdirectory the object is found in. pic_object=$xdir$pic_object if test dlfiles = "$prev"; then if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then func_append dlfiles " $pic_object" prev= continue else # If libtool objects are unsupported, then we need to preload. prev=dlprefiles fi fi # CHECK ME: I think I busted this. -Ossama if test dlprefiles = "$prev"; then # Preload the old-style object. func_append dlprefiles " $pic_object" prev= fi # A PIC object. func_append libobjs " $pic_object" arg=$pic_object fi # Non-PIC object. if test none != "$non_pic_object"; then # Prepend the subdirectory the object is found in. non_pic_object=$xdir$non_pic_object # A standard non-PIC object func_append non_pic_objects " $non_pic_object" if test -z "$pic_object" || test none = "$pic_object"; then arg=$non_pic_object fi else # If the PIC object exists, use it instead. # $xdir was prepended to $pic_object above. non_pic_object=$pic_object func_append non_pic_objects " $non_pic_object" fi else # Only an error if not doing a dry-run. if $opt_dry_run; then # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result func_lo2o "$arg" pic_object=$xdir$objdir/$func_lo2o_result non_pic_object=$xdir$func_lo2o_result func_append libobjs " $pic_object" func_append non_pic_objects " $non_pic_object" else func_fatal_error "'$arg' is not a valid libtool object" fi fi done else func_fatal_error "link input file '$arg' does not exist" fi arg=$save_arg prev= continue ;; os2dllname) os2dllname=$arg prev= continue ;; precious_regex) precious_files_regex=$arg prev= continue ;; release) release=-$arg prev= continue ;; rpath | xrpath) # We need an absolute path. case $arg in [\\/]* | [A-Za-z]:[\\/]*) ;; *) func_fatal_error "only absolute run-paths are allowed" ;; esac if test rpath = "$prev"; then case "$rpath " in *" $arg "*) ;; *) func_append rpath " $arg" ;; esac else case "$xrpath " in *" $arg "*) ;; *) func_append xrpath " $arg" ;; esac fi prev= continue ;; shrext) shrext_cmds=$arg prev= continue ;; weak) func_append weak_libs " $arg" prev= continue ;; xcclinker) func_append linker_flags " $qarg" func_append compiler_flags " $qarg" prev= func_append compile_command " $qarg" func_append finalize_command " $qarg" continue ;; xcompiler) func_append compiler_flags " $qarg" prev= func_append compile_command " $qarg" func_append finalize_command " $qarg" continue ;; xlinker) func_append linker_flags " $qarg" func_append compiler_flags " $wl$qarg" prev= func_append compile_command " $wl$qarg" func_append finalize_command " $wl$qarg" continue ;; *) eval "$prev=\"\$arg\"" prev= continue ;; esac fi # test -n "$prev" prevarg=$arg case $arg in -all-static) if test -n "$link_static_flag"; then # See comment for -static flag below, for more details. func_append compile_command " $link_static_flag" func_append finalize_command " $link_static_flag" fi continue ;; -allow-undefined) # FIXME: remove this flag sometime in the future. func_fatal_error "'-allow-undefined' must not be used because it is the default" ;; -avoid-version) avoid_version=yes continue ;; -bindir) prev=bindir continue ;; -dlopen) prev=dlfiles continue ;; -dlpreopen) prev=dlprefiles continue ;; -export-dynamic) export_dynamic=yes continue ;; -export-symbols | -export-symbols-regex) if test -n "$export_symbols" || test -n "$export_symbols_regex"; then func_fatal_error "more than one -exported-symbols argument is not allowed" fi if test X-export-symbols = "X$arg"; then prev=expsyms else prev=expsyms_regex fi continue ;; -framework) prev=framework continue ;; -inst-prefix-dir) prev=inst_prefix continue ;; # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:* # so, if we see these flags be careful not to treat them like -L -L[A-Z][A-Z]*:*) case $with_gcc/$host in no/*-*-irix* | /*-*-irix*) func_append compile_command " $arg" func_append finalize_command " $arg" ;; esac continue ;; -L*) func_stripname "-L" '' "$arg" if test -z "$func_stripname_result"; then if test "$#" -gt 0; then func_fatal_error "require no space between '-L' and '$1'" else func_fatal_error "need path for '-L' option" fi fi func_resolve_sysroot "$func_stripname_result" dir=$func_resolve_sysroot_result # We need an absolute path. case $dir in [\\/]* | [A-Za-z]:[\\/]*) ;; *) absdir=`cd "$dir" && pwd` test -z "$absdir" && \ func_fatal_error "cannot determine absolute directory name of '$dir'" dir=$absdir ;; esac case "$deplibs " in *" -L$dir "* | *" $arg "*) # Will only happen for absolute or sysroot arguments ;; *) # Preserve sysroot, but never include relative directories case $dir in [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;; *) func_append deplibs " -L$dir" ;; esac func_append lib_search_path " $dir" ;; esac case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'` case :$dllsearchpath: in *":$dir:"*) ;; ::) dllsearchpath=$dir;; *) func_append dllsearchpath ":$dir";; esac case :$dllsearchpath: in *":$testbindir:"*) ;; ::) dllsearchpath=$testbindir;; *) func_append dllsearchpath ":$testbindir";; esac ;; esac continue ;; -l*) if test X-lc = "X$arg" || test X-lm = "X$arg"; then case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*) # These systems don't actually have a C or math library (as such) continue ;; *-*-os2*) # These systems don't actually have a C library (as such) test X-lc = "X$arg" && continue ;; *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*) # Do not include libc due to us having libc/libc_r. test X-lc = "X$arg" && continue ;; *-*-rhapsody* | *-*-darwin1.[012]) # Rhapsody C and math libraries are in the System framework func_append deplibs " System.ltframework" continue ;; *-*-sco3.2v5* | *-*-sco5v6*) # Causes problems with __ctype test X-lc = "X$arg" && continue ;; *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) # Compiler inserts libc in the correct place for threads to work test X-lc = "X$arg" && continue ;; esac elif test X-lc_r = "X$arg"; then case $host in *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*) # Do not include libc_r directly, use -pthread flag. continue ;; esac fi func_append deplibs " $arg" continue ;; -mllvm) prev=mllvm continue ;; -module) module=yes continue ;; # Tru64 UNIX uses -model [arg] to determine the layout of C++ # classes, name mangling, and exception handling. # Darwin uses the -arch flag to determine output architecture. -model|-arch|-isysroot|--sysroot) func_append compiler_flags " $arg" func_append compile_command " $arg" func_append finalize_command " $arg" prev=xcompiler continue ;; -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) func_append compiler_flags " $arg" func_append compile_command " $arg" func_append finalize_command " $arg" case "$new_inherited_linker_flags " in *" $arg "*) ;; * ) func_append new_inherited_linker_flags " $arg" ;; esac continue ;; -multi_module) single_module=$wl-multi_module continue ;; -no-fast-install) fast_install=no continue ;; -no-install) case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*) # The PATH hackery in wrapper scripts is required on Windows # and Darwin in order for the loader to find any dlls it needs. func_warning "'-no-install' is ignored for $host" func_warning "assuming '-no-fast-install' instead" fast_install=no ;; *) no_install=yes ;; esac continue ;; -no-undefined) allow_undefined=no continue ;; -objectlist) prev=objectlist continue ;; -os2dllname) prev=os2dllname continue ;; -o) prev=output ;; -precious-files-regex) prev=precious_regex continue ;; -release) prev=release continue ;; -rpath) prev=rpath continue ;; -R) prev=xrpath continue ;; -R*) func_stripname '-R' '' "$arg" dir=$func_stripname_result # We need an absolute path. case $dir in [\\/]* | [A-Za-z]:[\\/]*) ;; =*) func_stripname '=' '' "$dir" dir=$lt_sysroot$func_stripname_result ;; *) func_fatal_error "only absolute run-paths are allowed" ;; esac case "$xrpath " in *" $dir "*) ;; *) func_append xrpath " $dir" ;; esac continue ;; -shared) # The effects of -shared are defined in a previous loop. continue ;; -shrext) prev=shrext continue ;; -static | -static-libtool-libs) # The effects of -static are defined in a previous loop. # We used to do the same as -all-static on platforms that # didn't have a PIC flag, but the assumption that the effects # would be equivalent was wrong. It would break on at least # Digital Unix and AIX. continue ;; -thread-safe) thread_safe=yes continue ;; -version-info) prev=vinfo continue ;; -version-number) prev=vinfo vinfo_number=yes continue ;; -weak) prev=weak continue ;; -Wc,*) func_stripname '-Wc,' '' "$arg" args=$func_stripname_result arg= save_ifs=$IFS; IFS=, for flag in $args; do IFS=$save_ifs func_quote_for_eval "$flag" func_append arg " $func_quote_for_eval_result" func_append compiler_flags " $func_quote_for_eval_result" done IFS=$save_ifs func_stripname ' ' '' "$arg" arg=$func_stripname_result ;; -Wl,*) func_stripname '-Wl,' '' "$arg" args=$func_stripname_result arg= save_ifs=$IFS; IFS=, for flag in $args; do IFS=$save_ifs func_quote_for_eval "$flag" func_append arg " $wl$func_quote_for_eval_result" func_append compiler_flags " $wl$func_quote_for_eval_result" func_append linker_flags " $func_quote_for_eval_result" done IFS=$save_ifs func_stripname ' ' '' "$arg" arg=$func_stripname_result ;; -Xcompiler) prev=xcompiler continue ;; -Xlinker) prev=xlinker continue ;; -XCClinker) prev=xcclinker continue ;; # -msg_* for osf cc -msg_*) func_quote_for_eval "$arg" arg=$func_quote_for_eval_result ;; # Flags to be passed through unchanged, with rationale: # -64, -mips[0-9] enable 64-bit mode for the SGI compiler # -r[0-9][0-9]* specify processor for the SGI compiler # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler # +DA*, +DD* enable 64-bit mode for the HP compiler # -q* compiler args for the IBM compiler # -m*, -t[45]*, -txscale* architecture-specific flags for GCC # -F/path path to uninstalled frameworks, gcc on darwin # -p, -pg, --coverage, -fprofile-* profiling flags for GCC # -fstack-protector* stack protector flags for GCC # @file GCC response files # -tp=* Portland pgcc target processor selection # --sysroot=* for sysroot support # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization # -stdlib=* select c++ std lib with clang -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \ -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \ -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*) func_quote_for_eval "$arg" arg=$func_quote_for_eval_result func_append compile_command " $arg" func_append finalize_command " $arg" func_append compiler_flags " $arg" continue ;; -Z*) if test os2 = "`expr $host : '.*\(os2\)'`"; then # OS/2 uses -Zxxx to specify OS/2-specific options compiler_flags="$compiler_flags $arg" func_append compile_command " $arg" func_append finalize_command " $arg" case $arg in -Zlinker | -Zstack) prev=xcompiler ;; esac continue else # Otherwise treat like 'Some other compiler flag' below func_quote_for_eval "$arg" arg=$func_quote_for_eval_result fi ;; # Some other compiler flag. -* | +*) func_quote_for_eval "$arg" arg=$func_quote_for_eval_result ;; *.$objext) # A standard object. func_append objs " $arg" ;; *.lo) # A libtool-controlled object. # Check to see that this really is a libtool object. if func_lalib_unsafe_p "$arg"; then pic_object= non_pic_object= # Read the .lo file func_source "$arg" if test -z "$pic_object" || test -z "$non_pic_object" || test none = "$pic_object" && test none = "$non_pic_object"; then func_fatal_error "cannot find name of object for '$arg'" fi # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result test none = "$pic_object" || { # Prepend the subdirectory the object is found in. pic_object=$xdir$pic_object if test dlfiles = "$prev"; then if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then func_append dlfiles " $pic_object" prev= continue else # If libtool objects are unsupported, then we need to preload. prev=dlprefiles fi fi # CHECK ME: I think I busted this. -Ossama if test dlprefiles = "$prev"; then # Preload the old-style object. func_append dlprefiles " $pic_object" prev= fi # A PIC object. func_append libobjs " $pic_object" arg=$pic_object } # Non-PIC object. if test none != "$non_pic_object"; then # Prepend the subdirectory the object is found in. non_pic_object=$xdir$non_pic_object # A standard non-PIC object func_append non_pic_objects " $non_pic_object" if test -z "$pic_object" || test none = "$pic_object"; then arg=$non_pic_object fi else # If the PIC object exists, use it instead. # $xdir was prepended to $pic_object above. non_pic_object=$pic_object func_append non_pic_objects " $non_pic_object" fi else # Only an error if not doing a dry-run. if $opt_dry_run; then # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result func_lo2o "$arg" pic_object=$xdir$objdir/$func_lo2o_result non_pic_object=$xdir$func_lo2o_result func_append libobjs " $pic_object" func_append non_pic_objects " $non_pic_object" else func_fatal_error "'$arg' is not a valid libtool object" fi fi ;; *.$libext) # An archive. func_append deplibs " $arg" func_append old_deplibs " $arg" continue ;; *.la) # A libtool-controlled library. func_resolve_sysroot "$arg" if test dlfiles = "$prev"; then # This library was specified with -dlopen. func_append dlfiles " $func_resolve_sysroot_result" prev= elif test dlprefiles = "$prev"; then # The library was specified with -dlpreopen. func_append dlprefiles " $func_resolve_sysroot_result" prev= else func_append deplibs " $func_resolve_sysroot_result" fi continue ;; # Some other compiler argument. *) # Unknown arguments in both finalize_command and compile_command need # to be aesthetically quoted because they are evaled later. func_quote_for_eval "$arg" arg=$func_quote_for_eval_result ;; esac # arg # Now actually substitute the argument into the commands. if test -n "$arg"; then func_append compile_command " $arg" func_append finalize_command " $arg" fi done # argument parsing loop test -n "$prev" && \ func_fatal_help "the '$prevarg' option requires an argument" if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then eval arg=\"$export_dynamic_flag_spec\" func_append compile_command " $arg" func_append finalize_command " $arg" fi oldlibs= # calculate the name of the file, without its directory func_basename "$output" outputname=$func_basename_result libobjs_save=$libobjs if test -n "$shlibpath_var"; then # get the directories listed in $shlibpath_var eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\` else shlib_search_path= fi eval sys_lib_search_path=\"$sys_lib_search_path_spec\" eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" # Definition is injected by LT_CONFIG during libtool generation. func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH" func_dirname "$output" "/" "" output_objdir=$func_dirname_result$objdir func_to_tool_file "$output_objdir/" tool_output_objdir=$func_to_tool_file_result # Create the object directory. func_mkdir_p "$output_objdir" # Determine the type of output case $output in "") func_fatal_help "you must specify an output file" ;; *.$libext) linkmode=oldlib ;; *.lo | *.$objext) linkmode=obj ;; *.la) linkmode=lib ;; *) linkmode=prog ;; # Anything else should be a program. esac specialdeplibs= libs= # Find all interdependent deplibs by searching for libraries # that are linked more than once (e.g. -la -lb -la) for deplib in $deplibs; do if $opt_preserve_dup_deps; then case "$libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append libs " $deplib" done if test lib = "$linkmode"; then libs="$predeps $libs $compiler_lib_search_path $postdeps" # Compute libraries that are listed more than once in $predeps # $postdeps and mark them as special (i.e., whose duplicates are # not to be eliminated). pre_post_deps= if $opt_duplicate_compiler_generated_deps; then for pre_post_dep in $predeps $postdeps; do case "$pre_post_deps " in *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; esac func_append pre_post_deps " $pre_post_dep" done fi pre_post_deps= fi deplibs= newdependency_libs= newlib_search_path= need_relink=no # whether we're linking any uninstalled libtool libraries notinst_deplibs= # not-installed libtool libraries notinst_path= # paths that contain not-installed libtool libraries case $linkmode in lib) passes="conv dlpreopen link" for file in $dlfiles $dlprefiles; do case $file in *.la) ;; *) func_fatal_help "libraries can '-dlopen' only libtool libraries: $file" ;; esac done ;; prog) compile_deplibs= finalize_deplibs= alldeplibs=false newdlfiles= newdlprefiles= passes="conv scan dlopen dlpreopen link" ;; *) passes="conv" ;; esac for pass in $passes; do # The preopen pass in lib mode reverses $deplibs; put it back here # so that -L comes before libs that need it for instance... if test lib,link = "$linkmode,$pass"; then ## FIXME: Find the place where the list is rebuilt in the wrong ## order, and fix it there properly tmp_deplibs= for deplib in $deplibs; do tmp_deplibs="$deplib $tmp_deplibs" done deplibs=$tmp_deplibs fi if test lib,link = "$linkmode,$pass" || test prog,scan = "$linkmode,$pass"; then libs=$deplibs deplibs= fi if test prog = "$linkmode"; then case $pass in dlopen) libs=$dlfiles ;; dlpreopen) libs=$dlprefiles ;; link) libs="$deplibs %DEPLIBS% $dependency_libs" ;; esac fi if test lib,dlpreopen = "$linkmode,$pass"; then # Collect and forward deplibs of preopened libtool libs for lib in $dlprefiles; do # Ignore non-libtool-libs dependency_libs= func_resolve_sysroot "$lib" case $lib in *.la) func_source "$func_resolve_sysroot_result" ;; esac # Collect preopened libtool deplibs, except any this library # has declared as weak libs for deplib in $dependency_libs; do func_basename "$deplib" deplib_base=$func_basename_result case " $weak_libs " in *" $deplib_base "*) ;; *) func_append deplibs " $deplib" ;; esac done done libs=$dlprefiles fi if test dlopen = "$pass"; then # Collect dlpreopened libraries save_deplibs=$deplibs deplibs= fi for deplib in $libs; do lib= found=false case $deplib in -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else func_append compiler_flags " $deplib" if test lib = "$linkmode"; then case "$new_inherited_linker_flags " in *" $deplib "*) ;; * ) func_append new_inherited_linker_flags " $deplib" ;; esac fi fi continue ;; -l*) if test lib != "$linkmode" && test prog != "$linkmode"; then func_warning "'-l' is ignored for archives/objects" continue fi func_stripname '-l' '' "$deplib" name=$func_stripname_result if test lib = "$linkmode"; then searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" else searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" fi for searchdir in $searchdirs; do for search_ext in .la $std_shrext .so .a; do # Search the libtool library lib=$searchdir/lib$name$search_ext if test -f "$lib"; then if test .la = "$search_ext"; then found=: else found=false fi break 2 fi done done if $found; then # deplib is a libtool library # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, # We need to do some special things here, and not later. if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $deplib "*) if func_lalib_p "$lib"; then library_names= old_library= func_source "$lib" for l in $old_library $library_names; do ll=$l done if test "X$ll" = "X$old_library"; then # only static version available found=false func_dirname "$lib" "" "." ladir=$func_dirname_result lib=$ladir/$old_library if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" fi continue fi fi ;; *) ;; esac fi else # deplib doesn't seem to be a libtool library if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" fi continue fi ;; # -l *.ltframework) if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" if test lib = "$linkmode"; then case "$new_inherited_linker_flags " in *" $deplib "*) ;; * ) func_append new_inherited_linker_flags " $deplib" ;; esac fi fi continue ;; -L*) case $linkmode in lib) deplibs="$deplib $deplibs" test conv = "$pass" && continue newdependency_libs="$deplib $newdependency_libs" func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; prog) if test conv = "$pass"; then deplibs="$deplib $deplibs" continue fi if test scan = "$pass"; then deplibs="$deplib $deplibs" else compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" fi func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; *) func_warning "'-L' is ignored for archives/objects" ;; esac # linkmode continue ;; # -L -R*) if test link = "$pass"; then func_stripname '-R' '' "$deplib" func_resolve_sysroot "$func_stripname_result" dir=$func_resolve_sysroot_result # Make sure the xrpath contains only unique directories. case "$xrpath " in *" $dir "*) ;; *) func_append xrpath " $dir" ;; esac fi deplibs="$deplib $deplibs" continue ;; *.la) func_resolve_sysroot "$deplib" lib=$func_resolve_sysroot_result ;; *.$libext) if test conv = "$pass"; then deplibs="$deplib $deplibs" continue fi case $linkmode in lib) # Linking convenience modules into shared libraries is allowed, # but linking other static libraries is non-portable. case " $dlpreconveniencelibs " in *" $deplib "*) ;; *) valid_a_lib=false case $deplibs_check_method in match_pattern*) set dummy $deplibs_check_method; shift match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ | $EGREP "$match_pattern_regex" > /dev/null; then valid_a_lib=: fi ;; pass_all) valid_a_lib=: ;; esac if $valid_a_lib; then echo $ECHO "*** Warning: Linking the shared library $output against the" $ECHO "*** static library $deplib is not portable!" deplibs="$deplib $deplibs" else echo $ECHO "*** Warning: Trying to link with static lib archive $deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because the file extensions .$libext of this argument makes me believe" echo "*** that it is just a static archive that I should not use here." fi ;; esac continue ;; prog) if test link != "$pass"; then deplibs="$deplib $deplibs" else compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" fi continue ;; esac # linkmode ;; # *.$libext *.lo | *.$objext) if test conv = "$pass"; then deplibs="$deplib $deplibs" elif test prog = "$linkmode"; then if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then # If there is no dlopen support or we're linking statically, # we need to preload. func_append newdlprefiles " $deplib" compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else func_append newdlfiles " $deplib" fi fi continue ;; %DEPLIBS%) alldeplibs=: continue ;; esac # case $deplib $found || test -f "$lib" \ || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'" # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$lib" \ || func_fatal_error "'$lib' is not a valid libtool archive" func_dirname "$lib" "" "." ladir=$func_dirname_result dlname= dlopen= dlpreopen= libdir= library_names= old_library= inherited_linker_flags= # If the library was installed with an old release of libtool, # it will not redefine variables installed, or shouldnotlink installed=yes shouldnotlink=no avoidtemprpath= # Read the .la file func_source "$lib" # Convert "-framework foo" to "foo.ltframework" if test -n "$inherited_linker_flags"; then tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do case " $new_inherited_linker_flags " in *" $tmp_inherited_linker_flag "*) ;; *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; esac done fi dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` if test lib,link = "$linkmode,$pass" || test prog,scan = "$linkmode,$pass" || { test prog != "$linkmode" && test lib != "$linkmode"; }; then test -n "$dlopen" && func_append dlfiles " $dlopen" test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" fi if test conv = "$pass"; then # Only check for convenience libraries deplibs="$lib $deplibs" if test -z "$libdir"; then if test -z "$old_library"; then func_fatal_error "cannot find name of link library for '$lib'" fi # It is a libtool convenience library, so add in its objects. func_append convenience " $ladir/$objdir/$old_library" func_append old_convenience " $ladir/$objdir/$old_library" elif test prog != "$linkmode" && test lib != "$linkmode"; then func_fatal_error "'$lib' is not a convenience library" fi tmp_libs= for deplib in $dependency_libs; do deplibs="$deplib $deplibs" if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append tmp_libs " $deplib" done continue fi # $pass = conv # Get the name of the library we link against. linklib= if test -n "$old_library" && { test yes = "$prefer_static_libs" || test built,no = "$prefer_static_libs,$installed"; }; then linklib=$old_library else for l in $old_library $library_names; do linklib=$l done fi if test -z "$linklib"; then func_fatal_error "cannot find name of link library for '$lib'" fi # This library was specified with -dlopen. if test dlopen = "$pass"; then test -z "$libdir" \ && func_fatal_error "cannot -dlopen a convenience library: '$lib'" if test -z "$dlname" || test yes != "$dlopen_support" || test no = "$build_libtool_libs" then # If there is no dlname, no dlopen support or we're linking # statically, we need to preload. We also need to preload any # dependent libraries so libltdl's deplib preloader doesn't # bomb out in the load deplibs phase. func_append dlprefiles " $lib $dependency_libs" else func_append newdlfiles " $lib" fi continue fi # $pass = dlopen # We need an absolute path. case $ladir in [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;; *) abs_ladir=`cd "$ladir" && pwd` if test -z "$abs_ladir"; then func_warning "cannot determine absolute directory name of '$ladir'" func_warning "passing it literally to the linker, although it might fail" abs_ladir=$ladir fi ;; esac func_basename "$lib" laname=$func_basename_result # Find the relevant object directory and library name. if test yes = "$installed"; then if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then func_warning "library '$lib' was moved." dir=$ladir absdir=$abs_ladir libdir=$abs_ladir else dir=$lt_sysroot$libdir absdir=$lt_sysroot$libdir fi test yes = "$hardcode_automatic" && avoidtemprpath=yes else if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then dir=$ladir absdir=$abs_ladir # Remove this search path later func_append notinst_path " $abs_ladir" else dir=$ladir/$objdir absdir=$abs_ladir/$objdir # Remove this search path later func_append notinst_path " $abs_ladir" fi fi # $installed = yes func_stripname 'lib' '.la' "$laname" name=$func_stripname_result # This library was specified with -dlpreopen. if test dlpreopen = "$pass"; then if test -z "$libdir" && test prog = "$linkmode"; then func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'" fi case $host in # special handling for platforms with PE-DLLs. *cygwin* | *mingw* | *cegcc* ) # Linker will automatically link against shared library if both # static and shared are present. Therefore, ensure we extract # symbols from the import library if a shared library is present # (otherwise, the dlopen module name will be incorrect). We do # this by putting the import library name into $newdlprefiles. # We recover the dlopen module name by 'saving' the la file # name in a special purpose variable, and (later) extracting the # dlname from the la file. if test -n "$dlname"; then func_tr_sh "$dir/$linklib" eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" func_append newdlprefiles " $dir/$linklib" else func_append newdlprefiles " $dir/$old_library" # Keep a list of preopened convenience libraries to check # that they are being used correctly in the link pass. test -z "$libdir" && \ func_append dlpreconveniencelibs " $dir/$old_library" fi ;; * ) # Prefer using a static library (so that no silly _DYNAMIC symbols # are required to link). if test -n "$old_library"; then func_append newdlprefiles " $dir/$old_library" # Keep a list of preopened convenience libraries to check # that they are being used correctly in the link pass. test -z "$libdir" && \ func_append dlpreconveniencelibs " $dir/$old_library" # Otherwise, use the dlname, so that lt_dlopen finds it. elif test -n "$dlname"; then func_append newdlprefiles " $dir/$dlname" else func_append newdlprefiles " $dir/$linklib" fi ;; esac fi # $pass = dlpreopen if test -z "$libdir"; then # Link the convenience library if test lib = "$linkmode"; then deplibs="$dir/$old_library $deplibs" elif test prog,link = "$linkmode,$pass"; then compile_deplibs="$dir/$old_library $compile_deplibs" finalize_deplibs="$dir/$old_library $finalize_deplibs" else deplibs="$lib $deplibs" # used for prog,scan pass fi continue fi if test prog = "$linkmode" && test link != "$pass"; then func_append newlib_search_path " $ladir" deplibs="$lib $deplibs" linkalldeplibs=false if test no != "$link_all_deplibs" || test -z "$library_names" || test no = "$build_libtool_libs"; then linkalldeplibs=: fi tmp_libs= for deplib in $dependency_libs; do case $deplib in -L*) func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; esac # Need to link against all dependency_libs? if $linkalldeplibs; then deplibs="$deplib $deplibs" else # Need to hardcode shared library paths # or/and link against static libraries newdependency_libs="$deplib $newdependency_libs" fi if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append tmp_libs " $deplib" done # for deplib continue fi # $linkmode = prog... if test prog,link = "$linkmode,$pass"; then if test -n "$library_names" && { { test no = "$prefer_static_libs" || test built,yes = "$prefer_static_libs,$installed"; } || test -z "$old_library"; }; then # We need to hardcode the library path if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then # Make sure the rpath contains only unique directories. case $temp_rpath: in *"$absdir:"*) ;; *) func_append temp_rpath "$absdir:" ;; esac fi # Hardcode the library path. # Skip directories that are in the system default run-time # search path. case " $sys_lib_dlsearch_path " in *" $absdir "*) ;; *) case "$compile_rpath " in *" $absdir "*) ;; *) func_append compile_rpath " $absdir" ;; esac ;; esac case " $sys_lib_dlsearch_path " in *" $libdir "*) ;; *) case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac ;; esac fi # $linkmode,$pass = prog,link... if $alldeplibs && { test pass_all = "$deplibs_check_method" || { test yes = "$build_libtool_libs" && test -n "$library_names"; }; }; then # We only need to search for static libraries continue fi fi link_static=no # Whether the deplib will be linked statically use_static_libs=$prefer_static_libs if test built = "$use_static_libs" && test yes = "$installed"; then use_static_libs=no fi if test -n "$library_names" && { test no = "$use_static_libs" || test -z "$old_library"; }; then case $host in *cygwin* | *mingw* | *cegcc* | *os2*) # No point in relinking DLLs because paths are not encoded func_append notinst_deplibs " $lib" need_relink=no ;; *) if test no = "$installed"; then func_append notinst_deplibs " $lib" need_relink=yes fi ;; esac # This is a shared library # Warn about portability, can't link against -module's on some # systems (darwin). Don't bleat about dlopened modules though! dlopenmodule= for dlpremoduletest in $dlprefiles; do if test "X$dlpremoduletest" = "X$lib"; then dlopenmodule=$dlpremoduletest break fi done if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then echo if test prog = "$linkmode"; then $ECHO "*** Warning: Linking the executable $output against the loadable module" else $ECHO "*** Warning: Linking the shared library $output against the loadable module" fi $ECHO "*** $linklib is not portable!" fi if test lib = "$linkmode" && test yes = "$hardcode_into_libs"; then # Hardcode the library path. # Skip directories that are in the system default run-time # search path. case " $sys_lib_dlsearch_path " in *" $absdir "*) ;; *) case "$compile_rpath " in *" $absdir "*) ;; *) func_append compile_rpath " $absdir" ;; esac ;; esac case " $sys_lib_dlsearch_path " in *" $libdir "*) ;; *) case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac ;; esac fi if test -n "$old_archive_from_expsyms_cmds"; then # figure out the soname set dummy $library_names shift realname=$1 shift libname=`eval "\\$ECHO \"$libname_spec\""` # use dlname if we got it. it's perfectly good, no? if test -n "$dlname"; then soname=$dlname elif test -n "$soname_spec"; then # bleh windows case $host in *cygwin* | mingw* | *cegcc* | *os2*) func_arith $current - $age major=$func_arith_result versuffix=-$major ;; esac eval soname=\"$soname_spec\" else soname=$realname fi # Make a new name for the extract_expsyms_cmds to use soroot=$soname func_basename "$soroot" soname=$func_basename_result func_stripname 'lib' '.dll' "$soname" newlib=libimp-$func_stripname_result.a # If the library has no export list, then create one now if test -f "$output_objdir/$soname-def"; then : else func_verbose "extracting exported symbol list from '$soname'" func_execute_cmds "$extract_expsyms_cmds" 'exit $?' fi # Create $newlib if test -f "$output_objdir/$newlib"; then :; else func_verbose "generating import library for '$soname'" func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' fi # make sure the library variables are pointing to the new library dir=$output_objdir linklib=$newlib fi # test -n "$old_archive_from_expsyms_cmds" if test prog = "$linkmode" || test relink != "$opt_mode"; then add_shlibpath= add_dir= add= lib_linked=yes case $hardcode_action in immediate | unsupported) if test no = "$hardcode_direct"; then add=$dir/$linklib case $host in *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; *-*-sysv4*uw2*) add_dir=-L$dir ;; *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ *-*-unixware7*) add_dir=-L$dir ;; *-*-darwin* ) # if the lib is a (non-dlopened) module then we cannot # link against it, someone is ignoring the earlier warnings if /usr/bin/file -L $add 2> /dev/null | $GREP ": [^:]* bundle" >/dev/null; then if test "X$dlopenmodule" != "X$lib"; then $ECHO "*** Warning: lib $linklib is a module, not a shared library" if test -z "$old_library"; then echo echo "*** And there doesn't seem to be a static archive available" echo "*** The link will probably fail, sorry" else add=$dir/$old_library fi elif test -n "$old_library"; then add=$dir/$old_library fi fi esac elif test no = "$hardcode_minus_L"; then case $host in *-*-sunos*) add_shlibpath=$dir ;; esac add_dir=-L$dir add=-l$name elif test no = "$hardcode_shlibpath_var"; then add_shlibpath=$dir add=-l$name else lib_linked=no fi ;; relink) if test yes = "$hardcode_direct" && test no = "$hardcode_direct_absolute"; then add=$dir/$linklib elif test yes = "$hardcode_minus_L"; then add_dir=-L$absdir # Try looking first in the location we're being installed to. if test -n "$inst_prefix_dir"; then case $libdir in [\\/]*) func_append add_dir " -L$inst_prefix_dir$libdir" ;; esac fi add=-l$name elif test yes = "$hardcode_shlibpath_var"; then add_shlibpath=$dir add=-l$name else lib_linked=no fi ;; *) lib_linked=no ;; esac if test yes != "$lib_linked"; then func_fatal_configuration "unsupported hardcode properties" fi if test -n "$add_shlibpath"; then case :$compile_shlibpath: in *":$add_shlibpath:"*) ;; *) func_append compile_shlibpath "$add_shlibpath:" ;; esac fi if test prog = "$linkmode"; then test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" test -n "$add" && compile_deplibs="$add $compile_deplibs" else test -n "$add_dir" && deplibs="$add_dir $deplibs" test -n "$add" && deplibs="$add $deplibs" if test yes != "$hardcode_direct" && test yes != "$hardcode_minus_L" && test yes = "$hardcode_shlibpath_var"; then case :$finalize_shlibpath: in *":$libdir:"*) ;; *) func_append finalize_shlibpath "$libdir:" ;; esac fi fi fi if test prog = "$linkmode" || test relink = "$opt_mode"; then add_shlibpath= add_dir= add= # Finalize command for both is simple: just hardcode it. if test yes = "$hardcode_direct" && test no = "$hardcode_direct_absolute"; then add=$libdir/$linklib elif test yes = "$hardcode_minus_L"; then add_dir=-L$libdir add=-l$name elif test yes = "$hardcode_shlibpath_var"; then case :$finalize_shlibpath: in *":$libdir:"*) ;; *) func_append finalize_shlibpath "$libdir:" ;; esac add=-l$name elif test yes = "$hardcode_automatic"; then if test -n "$inst_prefix_dir" && test -f "$inst_prefix_dir$libdir/$linklib"; then add=$inst_prefix_dir$libdir/$linklib else add=$libdir/$linklib fi else # We cannot seem to hardcode it, guess we'll fake it. add_dir=-L$libdir # Try looking first in the location we're being installed to. if test -n "$inst_prefix_dir"; then case $libdir in [\\/]*) func_append add_dir " -L$inst_prefix_dir$libdir" ;; esac fi add=-l$name fi if test prog = "$linkmode"; then test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" test -n "$add" && finalize_deplibs="$add $finalize_deplibs" else test -n "$add_dir" && deplibs="$add_dir $deplibs" test -n "$add" && deplibs="$add $deplibs" fi fi elif test prog = "$linkmode"; then # Here we assume that one of hardcode_direct or hardcode_minus_L # is not unsupported. This is valid on all known static and # shared platforms. if test unsupported != "$hardcode_direct"; then test -n "$old_library" && linklib=$old_library compile_deplibs="$dir/$linklib $compile_deplibs" finalize_deplibs="$dir/$linklib $finalize_deplibs" else compile_deplibs="-l$name -L$dir $compile_deplibs" finalize_deplibs="-l$name -L$dir $finalize_deplibs" fi elif test yes = "$build_libtool_libs"; then # Not a shared library if test pass_all != "$deplibs_check_method"; then # We're trying link a shared library against a static one # but the system doesn't support it. # Just print a warning and add the library to dependency_libs so # that the program can be linked against the static library. echo $ECHO "*** Warning: This system cannot link to static lib archive $lib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have." if test yes = "$module"; then echo "*** But as you try to build a module library, libtool will still create " echo "*** a static module, that should work as long as the dlopening application" echo "*** is linked with the -dlopen flag to resolve symbols at runtime." if test -z "$global_symbol_pipe"; then echo echo "*** However, this would only work if libtool was able to extract symbol" echo "*** lists from a program, using 'nm' or equivalent, but libtool could" echo "*** not find such a program. So, this module is probably useless." echo "*** 'nm' from GNU binutils and a full rebuild may help." fi if test no = "$build_old_libs"; then build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi fi else deplibs="$dir/$old_library $deplibs" link_static=yes fi fi # link shared/static library? if test lib = "$linkmode"; then if test -n "$dependency_libs" && { test yes != "$hardcode_into_libs" || test yes = "$build_old_libs" || test yes = "$link_static"; }; then # Extract -R from dependency_libs temp_deplibs= for libdir in $dependency_libs; do case $libdir in -R*) func_stripname '-R' '' "$libdir" temp_xrpath=$func_stripname_result case " $xrpath " in *" $temp_xrpath "*) ;; *) func_append xrpath " $temp_xrpath";; esac;; *) func_append temp_deplibs " $libdir";; esac done dependency_libs=$temp_deplibs fi func_append newlib_search_path " $absdir" # Link against this library test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" # ... and its dependency_libs tmp_libs= for deplib in $dependency_libs; do newdependency_libs="$deplib $newdependency_libs" case $deplib in -L*) func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result";; *) func_resolve_sysroot "$deplib" ;; esac if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $func_resolve_sysroot_result "*) func_append specialdeplibs " $func_resolve_sysroot_result" ;; esac fi func_append tmp_libs " $func_resolve_sysroot_result" done if test no != "$link_all_deplibs"; then # Add the search paths of all dependency libraries for deplib in $dependency_libs; do path= case $deplib in -L*) path=$deplib ;; *.la) func_resolve_sysroot "$deplib" deplib=$func_resolve_sysroot_result func_dirname "$deplib" "" "." dir=$func_dirname_result # We need an absolute path. case $dir in [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; *) absdir=`cd "$dir" && pwd` if test -z "$absdir"; then func_warning "cannot determine absolute directory name of '$dir'" absdir=$dir fi ;; esac if $GREP "^installed=no" $deplib > /dev/null; then case $host in *-*-darwin*) depdepl= eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` if test -n "$deplibrary_names"; then for tmp in $deplibrary_names; do depdepl=$tmp done if test -f "$absdir/$objdir/$depdepl"; then depdepl=$absdir/$objdir/$depdepl darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` if test -z "$darwin_install_name"; then darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` fi func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl" func_append linker_flags " -dylib_file $darwin_install_name:$depdepl" path= fi fi ;; *) path=-L$absdir/$objdir ;; esac else eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` test -z "$libdir" && \ func_fatal_error "'$deplib' is not a valid libtool archive" test "$absdir" != "$libdir" && \ func_warning "'$deplib' seems to be moved" path=-L$absdir fi ;; esac case " $deplibs " in *" $path "*) ;; *) deplibs="$path $deplibs" ;; esac done fi # link_all_deplibs != no fi # linkmode = lib done # for deplib in $libs if test link = "$pass"; then if test prog = "$linkmode"; then compile_deplibs="$new_inherited_linker_flags $compile_deplibs" finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" else compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` fi fi dependency_libs=$newdependency_libs if test dlpreopen = "$pass"; then # Link the dlpreopened libraries before other libraries for deplib in $save_deplibs; do deplibs="$deplib $deplibs" done fi if test dlopen != "$pass"; then test conv = "$pass" || { # Make sure lib_search_path contains only unique directories. lib_search_path= for dir in $newlib_search_path; do case "$lib_search_path " in *" $dir "*) ;; *) func_append lib_search_path " $dir" ;; esac done newlib_search_path= } if test prog,link = "$linkmode,$pass"; then vars="compile_deplibs finalize_deplibs" else vars=deplibs fi for var in $vars dependency_libs; do # Add libraries to $var in reverse order eval tmp_libs=\"\$$var\" new_libs= for deplib in $tmp_libs; do # FIXME: Pedantically, this is the right thing to do, so # that some nasty dependency loop isn't accidentally # broken: #new_libs="$deplib $new_libs" # Pragmatically, this seems to cause very few problems in # practice: case $deplib in -L*) new_libs="$deplib $new_libs" ;; -R*) ;; *) # And here is the reason: when a library appears more # than once as an explicit dependence of a library, or # is implicitly linked in more than once by the # compiler, it is considered special, and multiple # occurrences thereof are not removed. Compare this # with having the same library being listed as a # dependency of multiple other libraries: in this case, # we know (pedantically, we assume) the library does not # need to be listed more than once, so we keep only the # last copy. This is not always right, but it is rare # enough that we require users that really mean to play # such unportable linking tricks to link the library # using -Wl,-lname, so that libtool does not consider it # for duplicate removal. case " $specialdeplibs " in *" $deplib "*) new_libs="$deplib $new_libs" ;; *) case " $new_libs " in *" $deplib "*) ;; *) new_libs="$deplib $new_libs" ;; esac ;; esac ;; esac done tmp_libs= for deplib in $new_libs; do case $deplib in -L*) case " $tmp_libs " in *" $deplib "*) ;; *) func_append tmp_libs " $deplib" ;; esac ;; *) func_append tmp_libs " $deplib" ;; esac done eval $var=\"$tmp_libs\" done # for var fi # Add Sun CC postdeps if required: test CXX = "$tagname" && { case $host_os in linux*) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*) # Sun C++ 5.9 func_suncc_cstd_abi if test no != "$suncc_use_cstd_abi"; then func_append postdeps ' -library=Cstd -library=Crun' fi ;; esac ;; solaris*) func_cc_basename "$CC" case $func_cc_basename_result in CC* | sunCC*) func_suncc_cstd_abi if test no != "$suncc_use_cstd_abi"; then func_append postdeps ' -library=Cstd -library=Crun' fi ;; esac ;; esac } # Last step: remove runtime libs from dependency_libs # (they stay in deplibs) tmp_libs= for i in $dependency_libs; do case " $predeps $postdeps $compiler_lib_search_path " in *" $i "*) i= ;; esac if test -n "$i"; then func_append tmp_libs " $i" fi done dependency_libs=$tmp_libs done # for pass if test prog = "$linkmode"; then dlfiles=$newdlfiles fi if test prog = "$linkmode" || test lib = "$linkmode"; then dlprefiles=$newdlprefiles fi case $linkmode in oldlib) if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then func_warning "'-dlopen' is ignored for archives" fi case " $deplibs" in *\ -l* | *\ -L*) func_warning "'-l' and '-L' are ignored for archives" ;; esac test -n "$rpath" && \ func_warning "'-rpath' is ignored for archives" test -n "$xrpath" && \ func_warning "'-R' is ignored for archives" test -n "$vinfo" && \ func_warning "'-version-info/-version-number' is ignored for archives" test -n "$release" && \ func_warning "'-release' is ignored for archives" test -n "$export_symbols$export_symbols_regex" && \ func_warning "'-export-symbols' is ignored for archives" # Now set the variables for building old libraries. build_libtool_libs=no oldlibs=$output func_append objs "$old_deplibs" ;; lib) # Make sure we only generate libraries of the form 'libNAME.la'. case $outputname in lib*) func_stripname 'lib' '.la' "$outputname" name=$func_stripname_result eval shared_ext=\"$shrext_cmds\" eval libname=\"$libname_spec\" ;; *) test no = "$module" \ && func_fatal_help "libtool library '$output' must begin with 'lib'" if test no != "$need_lib_prefix"; then # Add the "lib" prefix for modules if required func_stripname '' '.la' "$outputname" name=$func_stripname_result eval shared_ext=\"$shrext_cmds\" eval libname=\"$libname_spec\" else func_stripname '' '.la' "$outputname" libname=$func_stripname_result fi ;; esac if test -n "$objs"; then if test pass_all != "$deplibs_check_method"; then func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs" else echo $ECHO "*** Warning: Linking the shared library $output against the non-libtool" $ECHO "*** objects $objs is not portable!" func_append libobjs " $objs" fi fi test no = "$dlself" \ || func_warning "'-dlopen self' is ignored for libtool libraries" set dummy $rpath shift test 1 -lt "$#" \ && func_warning "ignoring multiple '-rpath's for a libtool library" install_libdir=$1 oldlibs= if test -z "$rpath"; then if test yes = "$build_libtool_libs"; then # Building a libtool convenience library. # Some compilers have problems with a '.al' extension so # convenience libraries should have the same extension an # archive normally would. oldlibs="$output_objdir/$libname.$libext $oldlibs" build_libtool_libs=convenience build_old_libs=yes fi test -n "$vinfo" && \ func_warning "'-version-info/-version-number' is ignored for convenience libraries" test -n "$release" && \ func_warning "'-release' is ignored for convenience libraries" else # Parse the version information argument. save_ifs=$IFS; IFS=: set dummy $vinfo 0 0 0 shift IFS=$save_ifs test -n "$7" && \ func_fatal_help "too many parameters to '-version-info'" # convert absolute version numbers to libtool ages # this retains compatibility with .la files and attempts # to make the code below a bit more comprehensible case $vinfo_number in yes) number_major=$1 number_minor=$2 number_revision=$3 # # There are really only two kinds -- those that # use the current revision as the major version # and those that subtract age and use age as # a minor version. But, then there is irix # that has an extra 1 added just for fun # case $version_type in # correct linux to gnu/linux during the next big refactor darwin|freebsd-elf|linux|osf|windows|none) func_arith $number_major + $number_minor current=$func_arith_result age=$number_minor revision=$number_revision ;; freebsd-aout|qnx|sunos) current=$number_major revision=$number_minor age=0 ;; irix|nonstopux) func_arith $number_major + $number_minor current=$func_arith_result age=$number_minor revision=$number_minor lt_irix_increment=no ;; esac ;; no) current=$1 revision=$2 age=$3 ;; esac # Check that each of the things are valid numbers. case $current in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "CURRENT '$current' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac case $revision in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "REVISION '$revision' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac case $age in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "AGE '$age' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac if test "$age" -gt "$current"; then func_error "AGE '$age' is greater than the current interface number '$current'" func_fatal_error "'$vinfo' is not valid version information" fi # Calculate the version variables. major= versuffix= verstring= case $version_type in none) ;; darwin) # Like Linux, but with the current version available in # verstring for coding it into the library header func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision # Darwin ld doesn't like 0 for these options... func_arith $current + 1 minor_current=$func_arith_result xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" # On Darwin other compilers case $CC in nagfor*) verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" ;; *) verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" ;; esac ;; freebsd-aout) major=.$current versuffix=.$current.$revision ;; freebsd-elf) func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision ;; irix | nonstopux) if test no = "$lt_irix_increment"; then func_arith $current - $age else func_arith $current - $age + 1 fi major=$func_arith_result case $version_type in nonstopux) verstring_prefix=nonstopux ;; *) verstring_prefix=sgi ;; esac verstring=$verstring_prefix$major.$revision # Add in all the interfaces that we are compatible with. loop=$revision while test 0 -ne "$loop"; do func_arith $revision - $loop iface=$func_arith_result func_arith $loop - 1 loop=$func_arith_result verstring=$verstring_prefix$major.$iface:$verstring done # Before this point, $major must not contain '.'. major=.$major versuffix=$major.$revision ;; linux) # correct to gnu/linux during the next big refactor func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision ;; osf) func_arith $current - $age major=.$func_arith_result versuffix=.$current.$age.$revision verstring=$current.$age.$revision # Add in all the interfaces that we are compatible with. loop=$age while test 0 -ne "$loop"; do func_arith $current - $loop iface=$func_arith_result func_arith $loop - 1 loop=$func_arith_result verstring=$verstring:$iface.0 done # Make executables depend on our current version. func_append verstring ":$current.0" ;; qnx) major=.$current versuffix=.$current ;; sco) major=.$current versuffix=.$current ;; sunos) major=.$current versuffix=.$current.$revision ;; windows) # Use '-' rather than '.', since we only want one # extension on DOS 8.3 file systems. func_arith $current - $age major=$func_arith_result versuffix=-$major ;; *) func_fatal_configuration "unknown library version type '$version_type'" ;; esac # Clear the version info if we defaulted, and they specified a release. if test -z "$vinfo" && test -n "$release"; then major= case $version_type in darwin) # we can't check for "0.0" in archive_cmds due to quoting # problems, so we reset it completely verstring= ;; *) verstring=0.0 ;; esac if test no = "$need_version"; then versuffix= else versuffix=.0.0 fi fi # Remove version info from name if versioning should be avoided if test yes,no = "$avoid_version,$need_version"; then major= versuffix= verstring= fi # Check to see if the archive will have undefined symbols. if test yes = "$allow_undefined"; then if test unsupported = "$allow_undefined_flag"; then if test yes = "$build_old_libs"; then func_warning "undefined symbols not allowed in $host shared libraries; building static only" build_libtool_libs=no else func_fatal_error "can't build $host shared library unless -no-undefined is specified" fi fi else # Don't allow undefined symbols. allow_undefined_flag=$no_undefined_flag fi fi func_generate_dlsyms "$libname" "$libname" : func_append libobjs " $symfileobj" test " " = "$libobjs" && libobjs= if test relink != "$opt_mode"; then # Remove our outputs, but don't remove object files since they # may have been created when compiling PIC objects. removelist= tempremovelist=`$ECHO "$output_objdir/*"` for p in $tempremovelist; do case $p in *.$objext | *.gcno) ;; $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) if test -n "$precious_files_regex"; then if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 then continue fi fi func_append removelist " $p" ;; *) ;; esac done test -n "$removelist" && \ func_show_eval "${RM}r \$removelist" fi # Now set the variables for building old libraries. if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then func_append oldlibs " $output_objdir/$libname.$libext" # Transform .lo files to .o files. oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` fi # Eliminate all temporary directories. #for path in $notinst_path; do # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` #done if test -n "$xrpath"; then # If the user specified any rpath flags, then add them. temp_xrpath= for libdir in $xrpath; do func_replace_sysroot "$libdir" func_append temp_xrpath " -R$func_replace_sysroot_result" case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac done if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then dependency_libs="$temp_xrpath $dependency_libs" fi fi # Make sure dlfiles contains only unique files that won't be dlpreopened old_dlfiles=$dlfiles dlfiles= for lib in $old_dlfiles; do case " $dlprefiles $dlfiles " in *" $lib "*) ;; *) func_append dlfiles " $lib" ;; esac done # Make sure dlprefiles contains only unique files old_dlprefiles=$dlprefiles dlprefiles= for lib in $old_dlprefiles; do case "$dlprefiles " in *" $lib "*) ;; *) func_append dlprefiles " $lib" ;; esac done if test yes = "$build_libtool_libs"; then if test -n "$rpath"; then case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) # these systems don't actually have a c library (as such)! ;; *-*-rhapsody* | *-*-darwin1.[012]) # Rhapsody C library is in the System framework func_append deplibs " System.ltframework" ;; *-*-netbsd*) # Don't link with libc until the a.out ld.so is fixed. ;; *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) # Do not include libc due to us having libc/libc_r. ;; *-*-sco3.2v5* | *-*-sco5v6*) # Causes problems with __ctype ;; *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) # Compiler inserts libc in the correct place for threads to work ;; *) # Add libc to deplibs on all other systems if necessary. if test yes = "$build_libtool_need_lc"; then func_append deplibs " -lc" fi ;; esac fi # Transform deplibs into only deplibs that can be linked in shared. name_save=$name libname_save=$libname release_save=$release versuffix_save=$versuffix major_save=$major # I'm not sure if I'm treating the release correctly. I think # release should show up in the -l (ie -lgmp5) so we don't want to # add it in twice. Is that correct? release= versuffix= major= newdeplibs= droppeddeps=no case $deplibs_check_method in pass_all) # Don't check for shared/static. Everything works. # This might be a little naive. We might want to check # whether the library exists or not. But this is on # osf3 & osf4 and I'm not really sure... Just # implementing what was already the behavior. newdeplibs=$deplibs ;; test_compile) # This code stresses the "libraries are programs" paradigm to its # limits. Maybe even breaks it. We compile a program, linking it # against the deplibs as a proxy for the library. Then we can check # whether they linked in statically or dynamically with ldd. $opt_dry_run || $RM conftest.c cat > conftest.c </dev/null` $nocaseglob else potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` fi for potent_lib in $potential_libs; do # Follow soft links. if ls -lLd "$potent_lib" 2>/dev/null | $GREP " -> " >/dev/null; then continue fi # The statement above tries to avoid entering an # endless loop below, in case of cyclic links. # We might still enter an endless loop, since a link # loop can be closed while we follow links, # but so what? potlib=$potent_lib while test -h "$potlib" 2>/dev/null; do potliblink=`ls -ld $potlib | $SED 's/.* -> //'` case $potliblink in [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;; *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";; esac done if eval $file_magic_cmd \"\$potlib\" 2>/dev/null | $SED -e 10q | $EGREP "$file_magic_regex" > /dev/null; then func_append newdeplibs " $a_deplib" a_deplib= break 2 fi done done fi if test -n "$a_deplib"; then droppeddeps=yes echo $ECHO "*** Warning: linker path does not have real file for library $a_deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because I did check the linker path looking for a file starting" if test -z "$potlib"; then $ECHO "*** with $libname but no candidates were found. (...for file magic test)" else $ECHO "*** with $libname and none of the candidates passed a file format test" $ECHO "*** using a file magic. Last file checked: $potlib" fi fi ;; *) # Add a -L argument. func_append newdeplibs " $a_deplib" ;; esac done # Gone through all deplibs. ;; match_pattern*) set dummy $deplibs_check_method; shift match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` for a_deplib in $deplibs; do case $a_deplib in -l*) func_stripname -l '' "$a_deplib" name=$func_stripname_result if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $a_deplib "*) func_append newdeplibs " $a_deplib" a_deplib= ;; esac fi if test -n "$a_deplib"; then libname=`eval "\\$ECHO \"$libname_spec\""` for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do potential_libs=`ls $i/$libname[.-]* 2>/dev/null` for potent_lib in $potential_libs; do potlib=$potent_lib # see symlink-check above in file_magic test if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \ $EGREP "$match_pattern_regex" > /dev/null; then func_append newdeplibs " $a_deplib" a_deplib= break 2 fi done done fi if test -n "$a_deplib"; then droppeddeps=yes echo $ECHO "*** Warning: linker path does not have real file for library $a_deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because I did check the linker path looking for a file starting" if test -z "$potlib"; then $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)" else $ECHO "*** with $libname and none of the candidates passed a file format test" $ECHO "*** using a regex pattern. Last file checked: $potlib" fi fi ;; *) # Add a -L argument. func_append newdeplibs " $a_deplib" ;; esac done # Gone through all deplibs. ;; none | unknown | *) newdeplibs= tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'` if test yes = "$allow_libtool_libs_with_static_runtimes"; then for i in $predeps $postdeps; do # can't use Xsed below, because $i might contain '/' tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"` done fi case $tmp_deplibs in *[!\ \ ]*) echo if test none = "$deplibs_check_method"; then echo "*** Warning: inter-library dependencies are not supported in this platform." else echo "*** Warning: inter-library dependencies are not known to be supported." fi echo "*** All declared inter-library dependencies are being dropped." droppeddeps=yes ;; esac ;; esac versuffix=$versuffix_save major=$major_save release=$release_save libname=$libname_save name=$name_save case $host in *-*-rhapsody* | *-*-darwin1.[012]) # On Rhapsody replace the C library with the System framework newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'` ;; esac if test yes = "$droppeddeps"; then if test yes = "$module"; then echo echo "*** Warning: libtool could not satisfy all declared inter-library" $ECHO "*** dependencies of module $libname. Therefore, libtool will create" echo "*** a static module, that should work as long as the dlopening" echo "*** application is linked with the -dlopen flag." if test -z "$global_symbol_pipe"; then echo echo "*** However, this would only work if libtool was able to extract symbol" echo "*** lists from a program, using 'nm' or equivalent, but libtool could" echo "*** not find such a program. So, this module is probably useless." echo "*** 'nm' from GNU binutils and a full rebuild may help." fi if test no = "$build_old_libs"; then oldlibs=$output_objdir/$libname.$libext build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi else echo "*** The inter-library dependencies that have been dropped here will be" echo "*** automatically added whenever a program is linked with this library" echo "*** or is declared to -dlopen it." if test no = "$allow_undefined"; then echo echo "*** Since this library must not contain undefined symbols," echo "*** because either the platform does not support them or" echo "*** it was explicitly requested with -no-undefined," echo "*** libtool will only create a static version of it." if test no = "$build_old_libs"; then oldlibs=$output_objdir/$libname.$libext build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi fi fi fi # Done checking deplibs! deplibs=$newdeplibs fi # Time to change all our "foo.ltframework" stuff back to "-framework foo" case $host in *-*-darwin*) newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` ;; esac # move library search paths that coincide with paths to not yet # installed libraries to the beginning of the library search list new_libs= for path in $notinst_path; do case " $new_libs " in *" -L$path/$objdir "*) ;; *) case " $deplibs " in *" -L$path/$objdir "*) func_append new_libs " -L$path/$objdir" ;; esac ;; esac done for deplib in $deplibs; do case $deplib in -L*) case " $new_libs " in *" $deplib "*) ;; *) func_append new_libs " $deplib" ;; esac ;; *) func_append new_libs " $deplib" ;; esac done deplibs=$new_libs # All the library-specific variables (install_libdir is set above). library_names= old_library= dlname= # Test again, we may have decided not to build it any more if test yes = "$build_libtool_libs"; then # Remove $wl instances when linking with ld. # FIXME: should test the right _cmds variable. case $archive_cmds in *\$LD\ *) wl= ;; esac if test yes = "$hardcode_into_libs"; then # Hardcode the library paths hardcode_libdirs= dep_rpath= rpath=$finalize_rpath test relink = "$opt_mode" || rpath=$compile_rpath$rpath for libdir in $rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then func_replace_sysroot "$libdir" libdir=$func_replace_sysroot_result if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append dep_rpath " $flag" fi elif test -n "$runpath_var"; then case "$perm_rpath " in *" $libdir "*) ;; *) func_append perm_rpath " $libdir" ;; esac fi done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" fi if test -n "$runpath_var" && test -n "$perm_rpath"; then # We should set the runpath_var. rpath= for dir in $perm_rpath; do func_append rpath "$dir:" done eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" fi test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" fi shlibpath=$finalize_shlibpath test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath if test -n "$shlibpath"; then eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" fi # Get the real and link names of the library. eval shared_ext=\"$shrext_cmds\" eval library_names=\"$library_names_spec\" set dummy $library_names shift realname=$1 shift if test -n "$soname_spec"; then eval soname=\"$soname_spec\" else soname=$realname fi if test -z "$dlname"; then dlname=$soname fi lib=$output_objdir/$realname linknames= for link do func_append linknames " $link" done # Use standard objects if they are pic test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` test "X$libobjs" = "X " && libobjs= delfiles= if test -n "$export_symbols" && test -n "$include_expsyms"; then $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" export_symbols=$output_objdir/$libname.uexp func_append delfiles " $export_symbols" fi orig_export_symbols= case $host_os in cygwin* | mingw* | cegcc*) if test -n "$export_symbols" && test -z "$export_symbols_regex"; then # exporting using user supplied symfile func_dll_def_p "$export_symbols" || { # and it's NOT already a .def file. Must figure out # which of the given symbols are data symbols and tag # them as such. So, trigger use of export_symbols_cmds. # export_symbols gets reassigned inside the "prepare # the list of exported symbols" if statement, so the # include_expsyms logic still works. orig_export_symbols=$export_symbols export_symbols= always_export_symbols=yes } fi ;; esac # Prepare the list of exported symbols if test -z "$export_symbols"; then if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then func_verbose "generating symbol list for '$libname.la'" export_symbols=$output_objdir/$libname.exp $opt_dry_run || $RM $export_symbols cmds=$export_symbols_cmds save_ifs=$IFS; IFS='~' for cmd1 in $cmds; do IFS=$save_ifs # Take the normal branch if the nm_file_list_spec branch # doesn't work or if tool conversion is not needed. case $nm_file_list_spec~$to_tool_file_cmd in *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) try_normal_branch=yes eval cmd=\"$cmd1\" func_len " $cmd" len=$func_len_result ;; *) try_normal_branch=no ;; esac if test yes = "$try_normal_branch" \ && { test "$len" -lt "$max_cmd_len" \ || test "$max_cmd_len" -le -1; } then func_show_eval "$cmd" 'exit $?' skipped_export=false elif test -n "$nm_file_list_spec"; then func_basename "$output" output_la=$func_basename_result save_libobjs=$libobjs save_output=$output output=$output_objdir/$output_la.nm func_to_tool_file "$output" libobjs=$nm_file_list_spec$func_to_tool_file_result func_append delfiles " $output" func_verbose "creating $NM input file list: $output" for obj in $save_libobjs; do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" done > "$output" eval cmd=\"$cmd1\" func_show_eval "$cmd" 'exit $?' output=$save_output libobjs=$save_libobjs skipped_export=false else # The command line is too long to execute in one step. func_verbose "using reloadable object file for export list..." skipped_export=: # Break out early, otherwise skipped_export may be # set to false by a later but shorter cmd. break fi done IFS=$save_ifs if test -n "$export_symbols_regex" && test : != "$skipped_export"; then func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' func_show_eval '$MV "${export_symbols}T" "$export_symbols"' fi fi fi if test -n "$export_symbols" && test -n "$include_expsyms"; then tmp_export_symbols=$export_symbols test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' fi if test : != "$skipped_export" && test -n "$orig_export_symbols"; then # The given exports_symbols file has to be filtered, so filter it. func_verbose "filter symbol list for '$libname.la' to tag DATA exports" # FIXME: $output_objdir/$libname.filter potentially contains lots of # 's' commands, which not all seds can handle. GNU sed should be fine # though. Also, the filter scales superlinearly with the number of # global variables. join(1) would be nice here, but unfortunately # isn't a blessed tool. $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter func_append delfiles " $export_symbols $output_objdir/$libname.filter" export_symbols=$output_objdir/$libname.def $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols fi tmp_deplibs= for test_deplib in $deplibs; do case " $convenience " in *" $test_deplib "*) ;; *) func_append tmp_deplibs " $test_deplib" ;; esac done deplibs=$tmp_deplibs if test -n "$convenience"; then if test -n "$whole_archive_flag_spec" && test yes = "$compiler_needs_object" && test -z "$libobjs"; then # extract the archives, so we have objects to list. # TODO: could optimize this to just extract one archive. whole_archive_flag_spec= fi if test -n "$whole_archive_flag_spec"; then save_libobjs=$libobjs eval libobjs=\"\$libobjs $whole_archive_flag_spec\" test "X$libobjs" = "X " && libobjs= else gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $convenience func_append libobjs " $func_extract_archives_result" test "X$libobjs" = "X " && libobjs= fi fi if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then eval flag=\"$thread_safe_flag_spec\" func_append linker_flags " $flag" fi # Make a backup of the uninstalled library when relinking if test relink = "$opt_mode"; then $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? fi # Do each of the archive commands. if test yes = "$module" && test -n "$module_cmds"; then if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then eval test_cmds=\"$module_expsym_cmds\" cmds=$module_expsym_cmds else eval test_cmds=\"$module_cmds\" cmds=$module_cmds fi else if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then eval test_cmds=\"$archive_expsym_cmds\" cmds=$archive_expsym_cmds else eval test_cmds=\"$archive_cmds\" cmds=$archive_cmds fi fi if test : != "$skipped_export" && func_len " $test_cmds" && len=$func_len_result && test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then : else # The command line is too long to link in one step, link piecewise # or, if using GNU ld and skipped_export is not :, use a linker # script. # Save the value of $output and $libobjs because we want to # use them later. If we have whole_archive_flag_spec, we # want to use save_libobjs as it was before # whole_archive_flag_spec was expanded, because we can't # assume the linker understands whole_archive_flag_spec. # This may have to be revisited, in case too many # convenience libraries get linked in and end up exceeding # the spec. if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then save_libobjs=$libobjs fi save_output=$output func_basename "$output" output_la=$func_basename_result # Clear the reloadable object creation command queue and # initialize k to one. test_cmds= concat_cmds= objlist= last_robj= k=1 if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then output=$output_objdir/$output_la.lnkscript func_verbose "creating GNU ld script: $output" echo 'INPUT (' > $output for obj in $save_libobjs do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" >> $output done echo ')' >> $output func_append delfiles " $output" func_to_tool_file "$output" output=$func_to_tool_file_result elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then output=$output_objdir/$output_la.lnk func_verbose "creating linker input file list: $output" : > $output set x $save_libobjs shift firstobj= if test yes = "$compiler_needs_object"; then firstobj="$1 " shift fi for obj do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" >> $output done func_append delfiles " $output" func_to_tool_file "$output" output=$firstobj\"$file_list_spec$func_to_tool_file_result\" else if test -n "$save_libobjs"; then func_verbose "creating reloadable object files..." output=$output_objdir/$output_la-$k.$objext eval test_cmds=\"$reload_cmds\" func_len " $test_cmds" len0=$func_len_result len=$len0 # Loop over the list of objects to be linked. for obj in $save_libobjs do func_len " $obj" func_arith $len + $func_len_result len=$func_arith_result if test -z "$objlist" || test "$len" -lt "$max_cmd_len"; then func_append objlist " $obj" else # The command $test_cmds is almost too long, add a # command to the queue. if test 1 -eq "$k"; then # The first file doesn't have a previous command to add. reload_objs=$objlist eval concat_cmds=\"$reload_cmds\" else # All subsequent reloadable object files will link in # the last one created. reload_objs="$objlist $last_robj" eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" fi last_robj=$output_objdir/$output_la-$k.$objext func_arith $k + 1 k=$func_arith_result output=$output_objdir/$output_la-$k.$objext objlist=" $obj" func_len " $last_robj" func_arith $len0 + $func_len_result len=$func_arith_result fi done # Handle the remaining objects by creating one last # reloadable object file. All subsequent reloadable object # files will link in the last one created. test -z "$concat_cmds" || concat_cmds=$concat_cmds~ reload_objs="$objlist $last_robj" eval concat_cmds=\"\$concat_cmds$reload_cmds\" if test -n "$last_robj"; then eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" fi func_append delfiles " $output" else output= fi ${skipped_export-false} && { func_verbose "generating symbol list for '$libname.la'" export_symbols=$output_objdir/$libname.exp $opt_dry_run || $RM $export_symbols libobjs=$output # Append the command to create the export file. test -z "$concat_cmds" || concat_cmds=$concat_cmds~ eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" if test -n "$last_robj"; then eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" fi } test -n "$save_libobjs" && func_verbose "creating a temporary reloadable object file: $output" # Loop through the commands generated above and execute them. save_ifs=$IFS; IFS='~' for cmd in $concat_cmds; do IFS=$save_ifs $opt_quiet || { func_quote_for_expand "$cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || eval "$cmd" || { lt_exit=$? # Restore the uninstalled library and exit if test relink = "$opt_mode"; then ( cd "$output_objdir" && \ $RM "${realname}T" && \ $MV "${realname}U" "$realname" ) fi exit $lt_exit } done IFS=$save_ifs if test -n "$export_symbols_regex" && ${skipped_export-false}; then func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' func_show_eval '$MV "${export_symbols}T" "$export_symbols"' fi fi ${skipped_export-false} && { if test -n "$export_symbols" && test -n "$include_expsyms"; then tmp_export_symbols=$export_symbols test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' fi if test -n "$orig_export_symbols"; then # The given exports_symbols file has to be filtered, so filter it. func_verbose "filter symbol list for '$libname.la' to tag DATA exports" # FIXME: $output_objdir/$libname.filter potentially contains lots of # 's' commands, which not all seds can handle. GNU sed should be fine # though. Also, the filter scales superlinearly with the number of # global variables. join(1) would be nice here, but unfortunately # isn't a blessed tool. $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter func_append delfiles " $export_symbols $output_objdir/$libname.filter" export_symbols=$output_objdir/$libname.def $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols fi } libobjs=$output # Restore the value of output. output=$save_output if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then eval libobjs=\"\$libobjs $whole_archive_flag_spec\" test "X$libobjs" = "X " && libobjs= fi # Expand the library linking commands again to reset the # value of $libobjs for piecewise linking. # Do each of the archive commands. if test yes = "$module" && test -n "$module_cmds"; then if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then cmds=$module_expsym_cmds else cmds=$module_cmds fi else if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then cmds=$archive_expsym_cmds else cmds=$archive_cmds fi fi fi if test -n "$delfiles"; then # Append the command to remove temporary files to $cmds. eval cmds=\"\$cmds~\$RM $delfiles\" fi # Add any objects from preloaded convenience libraries if test -n "$dlprefiles"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $dlprefiles func_append libobjs " $func_extract_archives_result" test "X$libobjs" = "X " && libobjs= fi save_ifs=$IFS; IFS='~' for cmd in $cmds; do IFS=$sp$nl eval cmd=\"$cmd\" IFS=$save_ifs $opt_quiet || { func_quote_for_expand "$cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || eval "$cmd" || { lt_exit=$? # Restore the uninstalled library and exit if test relink = "$opt_mode"; then ( cd "$output_objdir" && \ $RM "${realname}T" && \ $MV "${realname}U" "$realname" ) fi exit $lt_exit } done IFS=$save_ifs # Restore the uninstalled library and exit if test relink = "$opt_mode"; then $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? if test -n "$convenience"; then if test -z "$whole_archive_flag_spec"; then func_show_eval '${RM}r "$gentop"' fi fi exit $EXIT_SUCCESS fi # Create links to the real library. for linkname in $linknames; do if test "$realname" != "$linkname"; then func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' fi done # If -module or -export-dynamic was specified, set the dlname. if test yes = "$module" || test yes = "$export_dynamic"; then # On all known operating systems, these are identical. dlname=$soname fi fi ;; obj) if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then func_warning "'-dlopen' is ignored for objects" fi case " $deplibs" in *\ -l* | *\ -L*) func_warning "'-l' and '-L' are ignored for objects" ;; esac test -n "$rpath" && \ func_warning "'-rpath' is ignored for objects" test -n "$xrpath" && \ func_warning "'-R' is ignored for objects" test -n "$vinfo" && \ func_warning "'-version-info' is ignored for objects" test -n "$release" && \ func_warning "'-release' is ignored for objects" case $output in *.lo) test -n "$objs$old_deplibs" && \ func_fatal_error "cannot build library object '$output' from non-libtool objects" libobj=$output func_lo2o "$libobj" obj=$func_lo2o_result ;; *) libobj= obj=$output ;; esac # Delete the old objects. $opt_dry_run || $RM $obj $libobj # Objects from convenience libraries. This assumes # single-version convenience libraries. Whenever we create # different ones for PIC/non-PIC, this we'll have to duplicate # the extraction. reload_conv_objs= gentop= # if reload_cmds runs $LD directly, get rid of -Wl from # whole_archive_flag_spec and hope we can get by with turning comma # into space. case $reload_cmds in *\$LD[\ \$]*) wl= ;; esac if test -n "$convenience"; then if test -n "$whole_archive_flag_spec"; then eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags else gentop=$output_objdir/${obj}x func_append generated " $gentop" func_extract_archives $gentop $convenience reload_conv_objs="$reload_objs $func_extract_archives_result" fi fi # If we're not building shared, we need to use non_pic_objs test yes = "$build_libtool_libs" || libobjs=$non_pic_objects # Create the old-style object. reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs output=$obj func_execute_cmds "$reload_cmds" 'exit $?' # Exit if we aren't doing a library object file. if test -z "$libobj"; then if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi exit $EXIT_SUCCESS fi test yes = "$build_libtool_libs" || { if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi # Create an invalid libtool object if no PIC, so that we don't # accidentally link it into a program. # $show "echo timestamp > $libobj" # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? exit $EXIT_SUCCESS } if test -n "$pic_flag" || test default != "$pic_mode"; then # Only do commands if we really have different PIC objects. reload_objs="$libobjs $reload_conv_objs" output=$libobj func_execute_cmds "$reload_cmds" 'exit $?' fi if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi exit $EXIT_SUCCESS ;; prog) case $host in *cygwin*) func_stripname '' '.exe' "$output" output=$func_stripname_result.exe;; esac test -n "$vinfo" && \ func_warning "'-version-info' is ignored for programs" test -n "$release" && \ func_warning "'-release' is ignored for programs" $preload \ && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \ && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support." case $host in *-*-rhapsody* | *-*-darwin1.[012]) # On Rhapsody replace the C library is the System framework compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` ;; esac case $host in *-*-darwin*) # Don't allow lazy linking, it breaks C++ global constructors # But is supposedly fixed on 10.4 or later (yay!). if test CXX = "$tagname"; then case ${MACOSX_DEPLOYMENT_TARGET-10.0} in 10.[0123]) func_append compile_command " $wl-bind_at_load" func_append finalize_command " $wl-bind_at_load" ;; esac fi # Time to change all our "foo.ltframework" stuff back to "-framework foo" compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` ;; esac # move library search paths that coincide with paths to not yet # installed libraries to the beginning of the library search list new_libs= for path in $notinst_path; do case " $new_libs " in *" -L$path/$objdir "*) ;; *) case " $compile_deplibs " in *" -L$path/$objdir "*) func_append new_libs " -L$path/$objdir" ;; esac ;; esac done for deplib in $compile_deplibs; do case $deplib in -L*) case " $new_libs " in *" $deplib "*) ;; *) func_append new_libs " $deplib" ;; esac ;; *) func_append new_libs " $deplib" ;; esac done compile_deplibs=$new_libs func_append compile_command " $compile_deplibs" func_append finalize_command " $finalize_deplibs" if test -n "$rpath$xrpath"; then # If the user specified any rpath flags, then add them. for libdir in $rpath $xrpath; do # This is the magic to use -rpath. case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac done fi # Now hardcode the library paths rpath= hardcode_libdirs= for libdir in $compile_rpath $finalize_rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append rpath " $flag" fi elif test -n "$runpath_var"; then case "$perm_rpath " in *" $libdir "*) ;; *) func_append perm_rpath " $libdir" ;; esac fi case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'` case :$dllsearchpath: in *":$libdir:"*) ;; ::) dllsearchpath=$libdir;; *) func_append dllsearchpath ":$libdir";; esac case :$dllsearchpath: in *":$testbindir:"*) ;; ::) dllsearchpath=$testbindir;; *) func_append dllsearchpath ":$testbindir";; esac ;; esac done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval rpath=\" $hardcode_libdir_flag_spec\" fi compile_rpath=$rpath rpath= hardcode_libdirs= for libdir in $finalize_rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append rpath " $flag" fi elif test -n "$runpath_var"; then case "$finalize_perm_rpath " in *" $libdir "*) ;; *) func_append finalize_perm_rpath " $libdir" ;; esac fi done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval rpath=\" $hardcode_libdir_flag_spec\" fi finalize_rpath=$rpath if test -n "$libobjs" && test yes = "$build_old_libs"; then # Transform all the library objects into standard objects. compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` fi func_generate_dlsyms "$outputname" "@PROGRAM@" false # template prelinking step if test -n "$prelink_cmds"; then func_execute_cmds "$prelink_cmds" 'exit $?' fi wrappers_required=: case $host in *cegcc* | *mingw32ce*) # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. wrappers_required=false ;; *cygwin* | *mingw* ) test yes = "$build_libtool_libs" || wrappers_required=false ;; *) if test no = "$need_relink" || test yes != "$build_libtool_libs"; then wrappers_required=false fi ;; esac $wrappers_required || { # Replace the output file specification. compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` link_command=$compile_command$compile_rpath # We have no uninstalled library dependencies, so finalize right now. exit_status=0 func_show_eval "$link_command" 'exit_status=$?' if test -n "$postlink_cmds"; then func_to_tool_file "$output" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi # Delete the generated files. if test -f "$output_objdir/${outputname}S.$objext"; then func_show_eval '$RM "$output_objdir/${outputname}S.$objext"' fi exit $exit_status } if test -n "$compile_shlibpath$finalize_shlibpath"; then compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" fi if test -n "$finalize_shlibpath"; then finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" fi compile_var= finalize_var= if test -n "$runpath_var"; then if test -n "$perm_rpath"; then # We should set the runpath_var. rpath= for dir in $perm_rpath; do func_append rpath "$dir:" done compile_var="$runpath_var=\"$rpath\$$runpath_var\" " fi if test -n "$finalize_perm_rpath"; then # We should set the runpath_var. rpath= for dir in $finalize_perm_rpath; do func_append rpath "$dir:" done finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " fi fi if test yes = "$no_install"; then # We don't need to create a wrapper script. link_command=$compile_var$compile_command$compile_rpath # Replace the output file specification. link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` # Delete the old output file. $opt_dry_run || $RM $output # Link the executable and exit func_show_eval "$link_command" 'exit $?' if test -n "$postlink_cmds"; then func_to_tool_file "$output" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi exit $EXIT_SUCCESS fi case $hardcode_action,$fast_install in relink,*) # Fast installation is not supported link_command=$compile_var$compile_command$compile_rpath relink_command=$finalize_var$finalize_command$finalize_rpath func_warning "this platform does not like uninstalled shared libraries" func_warning "'$output' will be relinked during installation" ;; *,yes) link_command=$finalize_var$compile_command$finalize_rpath relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` ;; *,no) link_command=$compile_var$compile_command$compile_rpath relink_command=$finalize_var$finalize_command$finalize_rpath ;; *,needless) link_command=$finalize_var$compile_command$finalize_rpath relink_command= ;; esac # Replace the output file specification. link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` # Delete the old output files. $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname func_show_eval "$link_command" 'exit $?' if test -n "$postlink_cmds"; then func_to_tool_file "$output_objdir/$outputname" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi # Now create the wrapper script. func_verbose "creating $output" # Quote the relink command for shipping. if test -n "$relink_command"; then # Preserve any variables that may affect compiler behavior for var in $variables_saved_for_relink; do if eval test -z \"\${$var+set}\"; then relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" elif eval var_value=\$$var; test -z "$var_value"; then relink_command="$var=; export $var; $relink_command" else func_quote_for_eval "$var_value" relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" fi done relink_command="(cd `pwd`; $relink_command)" relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` fi # Only actually do things if not in dry run mode. $opt_dry_run || { # win32 will think the script is a binary if it has # a .exe suffix, so we strip it off here. case $output in *.exe) func_stripname '' '.exe' "$output" output=$func_stripname_result ;; esac # test for cygwin because mv fails w/o .exe extensions case $host in *cygwin*) exeext=.exe func_stripname '' '.exe' "$outputname" outputname=$func_stripname_result ;; *) exeext= ;; esac case $host in *cygwin* | *mingw* ) func_dirname_and_basename "$output" "" "." output_name=$func_basename_result output_path=$func_dirname_result cwrappersource=$output_path/$objdir/lt-$output_name.c cwrapper=$output_path/$output_name.exe $RM $cwrappersource $cwrapper trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 func_emit_cwrapperexe_src > $cwrappersource # The wrapper executable is built using the $host compiler, # because it contains $host paths and files. If cross- # compiling, it, like the target executable, must be # executed on the $host or under an emulation environment. $opt_dry_run || { $LTCC $LTCFLAGS -o $cwrapper $cwrappersource $STRIP $cwrapper } # Now, create the wrapper script for func_source use: func_ltwrapper_scriptname $cwrapper $RM $func_ltwrapper_scriptname_result trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 $opt_dry_run || { # note: this script will not be executed, so do not chmod. if test "x$build" = "x$host"; then $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result else func_emit_wrapper no > $func_ltwrapper_scriptname_result fi } ;; * ) $RM $output trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 func_emit_wrapper no > $output chmod +x $output ;; esac } exit $EXIT_SUCCESS ;; esac # See if we need to build an old-fashioned archive. for oldlib in $oldlibs; do case $build_libtool_libs in convenience) oldobjs="$libobjs_save $symfileobj" addlibs=$convenience build_libtool_libs=no ;; module) oldobjs=$libobjs_save addlibs=$old_convenience build_libtool_libs=no ;; *) oldobjs="$old_deplibs $non_pic_objects" $preload && test -f "$symfileobj" \ && func_append oldobjs " $symfileobj" addlibs=$old_convenience ;; esac if test -n "$addlibs"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $addlibs func_append oldobjs " $func_extract_archives_result" fi # Do each command in the archive commands. if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then cmds=$old_archive_from_new_cmds else # Add any objects from preloaded convenience libraries if test -n "$dlprefiles"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $dlprefiles func_append oldobjs " $func_extract_archives_result" fi # POSIX demands no paths to be encoded in archives. We have # to avoid creating archives with duplicate basenames if we # might have to extract them afterwards, e.g., when creating a # static archive out of a convenience library, or when linking # the entirety of a libtool archive into another (currently # not supported by libtool). if (for obj in $oldobjs do func_basename "$obj" $ECHO "$func_basename_result" done | sort | sort -uc >/dev/null 2>&1); then : else echo "copying selected object files to avoid basename conflicts..." gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_mkdir_p "$gentop" save_oldobjs=$oldobjs oldobjs= counter=1 for obj in $save_oldobjs do func_basename "$obj" objbase=$func_basename_result case " $oldobjs " in " ") oldobjs=$obj ;; *[\ /]"$objbase "*) while :; do # Make sure we don't pick an alternate name that also # overlaps. newobj=lt$counter-$objbase func_arith $counter + 1 counter=$func_arith_result case " $oldobjs " in *[\ /]"$newobj "*) ;; *) if test ! -f "$gentop/$newobj"; then break; fi ;; esac done func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj" func_append oldobjs " $gentop/$newobj" ;; *) func_append oldobjs " $obj" ;; esac done fi func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 tool_oldlib=$func_to_tool_file_result eval cmds=\"$old_archive_cmds\" func_len " $cmds" len=$func_len_result if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then cmds=$old_archive_cmds elif test -n "$archiver_list_spec"; then func_verbose "using command file archive linking..." for obj in $oldobjs do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" done > $output_objdir/$libname.libcmd func_to_tool_file "$output_objdir/$libname.libcmd" oldobjs=" $archiver_list_spec$func_to_tool_file_result" cmds=$old_archive_cmds else # the command line is too long to link in one step, link in parts func_verbose "using piecewise archive linking..." save_RANLIB=$RANLIB RANLIB=: objlist= concat_cmds= save_oldobjs=$oldobjs oldobjs= # Is there a better way of finding the last object in the list? for obj in $save_oldobjs do last_oldobj=$obj done eval test_cmds=\"$old_archive_cmds\" func_len " $test_cmds" len0=$func_len_result len=$len0 for obj in $save_oldobjs do func_len " $obj" func_arith $len + $func_len_result len=$func_arith_result func_append objlist " $obj" if test "$len" -lt "$max_cmd_len"; then : else # the above command should be used before it gets too long oldobjs=$objlist if test "$obj" = "$last_oldobj"; then RANLIB=$save_RANLIB fi test -z "$concat_cmds" || concat_cmds=$concat_cmds~ eval concat_cmds=\"\$concat_cmds$old_archive_cmds\" objlist= len=$len0 fi done RANLIB=$save_RANLIB oldobjs=$objlist if test -z "$oldobjs"; then eval cmds=\"\$concat_cmds\" else eval cmds=\"\$concat_cmds~\$old_archive_cmds\" fi fi fi func_execute_cmds "$cmds" 'exit $?' done test -n "$generated" && \ func_show_eval "${RM}r$generated" # Now create the libtool archive. case $output in *.la) old_library= test yes = "$build_old_libs" && old_library=$libname.$libext func_verbose "creating $output" # Preserve any variables that may affect compiler behavior for var in $variables_saved_for_relink; do if eval test -z \"\${$var+set}\"; then relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" elif eval var_value=\$$var; test -z "$var_value"; then relink_command="$var=; export $var; $relink_command" else func_quote_for_eval "$var_value" relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" fi done # Quote the link command for shipping. relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)" relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` if test yes = "$hardcode_automatic"; then relink_command= fi # Only create the output if not a dry run. $opt_dry_run || { for installed in no yes; do if test yes = "$installed"; then if test -z "$install_libdir"; then break fi output=$output_objdir/${outputname}i # Replace all uninstalled libtool libraries with the installed ones newdependency_libs= for deplib in $dependency_libs; do case $deplib in *.la) func_basename "$deplib" name=$func_basename_result func_resolve_sysroot "$deplib" eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result` test -z "$libdir" && \ func_fatal_error "'$deplib' is not a valid libtool archive" func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name" ;; -L*) func_stripname -L '' "$deplib" func_replace_sysroot "$func_stripname_result" func_append newdependency_libs " -L$func_replace_sysroot_result" ;; -R*) func_stripname -R '' "$deplib" func_replace_sysroot "$func_stripname_result" func_append newdependency_libs " -R$func_replace_sysroot_result" ;; *) func_append newdependency_libs " $deplib" ;; esac done dependency_libs=$newdependency_libs newdlfiles= for lib in $dlfiles; do case $lib in *.la) func_basename "$lib" name=$func_basename_result eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` test -z "$libdir" && \ func_fatal_error "'$lib' is not a valid libtool archive" func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name" ;; *) func_append newdlfiles " $lib" ;; esac done dlfiles=$newdlfiles newdlprefiles= for lib in $dlprefiles; do case $lib in *.la) # Only pass preopened files to the pseudo-archive (for # eventual linking with the app. that links it) if we # didn't already link the preopened objects directly into # the library: func_basename "$lib" name=$func_basename_result eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` test -z "$libdir" && \ func_fatal_error "'$lib' is not a valid libtool archive" func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name" ;; esac done dlprefiles=$newdlprefiles else newdlfiles= for lib in $dlfiles; do case $lib in [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; *) abs=`pwd`"/$lib" ;; esac func_append newdlfiles " $abs" done dlfiles=$newdlfiles newdlprefiles= for lib in $dlprefiles; do case $lib in [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; *) abs=`pwd`"/$lib" ;; esac func_append newdlprefiles " $abs" done dlprefiles=$newdlprefiles fi $RM $output # place dlname in correct position for cygwin # In fact, it would be nice if we could use this code for all target # systems that can't hard-code library paths into their executables # and that have no shared library path variable independent of PATH, # but it turns out we can't easily determine that from inspecting # libtool variables, so we have to hard-code the OSs to which it # applies here; at the moment, that means platforms that use the PE # object format with DLL files. 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installed=$installed # Should we warn about portability when linking against -modules? shouldnotlink=$module # Files to dlopen/dlpreopen dlopen='$dlfiles' dlpreopen='$dlprefiles' # Directory that this library needs to be installed in: libdir='$install_libdir'" if test no,yes = "$installed,$need_relink"; then $ECHO >> $output "\ relink_command=\"$relink_command\"" fi done } # Do a symbolic link so that the libtool archive can be found in # LD_LIBRARY_PATH before the program is installed. func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?' ;; esac exit $EXIT_SUCCESS } if test link = "$opt_mode" || test relink = "$opt_mode"; then func_mode_link ${1+"$@"} fi # func_mode_uninstall arg... func_mode_uninstall () { $debug_cmd RM=$nonopt files= rmforce=false exit_status=0 # This variable tells wrapper scripts just to set variables rather # than running their programs. libtool_install_magic=$magic for arg do case $arg in -f) func_append RM " $arg"; rmforce=: ;; -*) func_append RM " $arg" ;; *) func_append files " $arg" ;; esac done test -z "$RM" && \ func_fatal_help "you must specify an RM program" rmdirs= for file in $files; do func_dirname "$file" "" "." dir=$func_dirname_result if test . = "$dir"; then odir=$objdir else odir=$dir/$objdir fi func_basename "$file" name=$func_basename_result test uninstall = "$opt_mode" && odir=$dir # Remember odir for removal later, being careful to avoid duplicates if test clean = "$opt_mode"; then case " $rmdirs " in *" $odir "*) ;; *) func_append rmdirs " $odir" ;; esac fi # Don't error if the file doesn't exist and rm -f was used. if { test -L "$file"; } >/dev/null 2>&1 || { test -h "$file"; } >/dev/null 2>&1 || test -f "$file"; then : elif test -d "$file"; then exit_status=1 continue elif $rmforce; then continue fi rmfiles=$file case $name in *.la) # Possibly a libtool archive, so verify it. if func_lalib_p "$file"; then func_source $dir/$name # Delete the libtool libraries and symlinks. for n in $library_names; do func_append rmfiles " $odir/$n" done test -n "$old_library" && func_append rmfiles " $odir/$old_library" case $opt_mode in clean) case " $library_names " in *" $dlname "*) ;; *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;; esac test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i" ;; uninstall) if test -n "$library_names"; then # Do each command in the postuninstall commands. func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1' fi if test -n "$old_library"; then # Do each command in the old_postuninstall commands. func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1' fi # FIXME: should reinstall the best remaining shared library. ;; esac fi ;; *.lo) # Possibly a libtool object, so verify it. if func_lalib_p "$file"; then # Read the .lo file func_source $dir/$name # Add PIC object to the list of files to remove. if test -n "$pic_object" && test none != "$pic_object"; then func_append rmfiles " $dir/$pic_object" fi # Add non-PIC object to the list of files to remove. if test -n "$non_pic_object" && test none != "$non_pic_object"; then func_append rmfiles " $dir/$non_pic_object" fi fi ;; *) if test clean = "$opt_mode"; then noexename=$name case $file in *.exe) func_stripname '' '.exe' "$file" file=$func_stripname_result func_stripname '' '.exe' "$name" noexename=$func_stripname_result # $file with .exe has already been added to rmfiles, # add $file without .exe func_append rmfiles " $file" ;; esac # Do a test to see if this is a libtool program. if func_ltwrapper_p "$file"; then if func_ltwrapper_executable_p "$file"; then func_ltwrapper_scriptname "$file" relink_command= func_source $func_ltwrapper_scriptname_result func_append rmfiles " $func_ltwrapper_scriptname_result" else relink_command= func_source $dir/$noexename fi # note $name still contains .exe if it was in $file originally # as does the version of $file that was added into $rmfiles func_append rmfiles " $odir/$name $odir/${name}S.$objext" if test yes = "$fast_install" && test -n "$relink_command"; then func_append rmfiles " $odir/lt-$name" fi if test "X$noexename" != "X$name"; then func_append rmfiles " $odir/lt-$noexename.c" fi fi fi ;; esac func_show_eval "$RM $rmfiles" 'exit_status=1' done # Try to remove the $objdir's in the directories where we deleted files for dir in $rmdirs; do if test -d "$dir"; then func_show_eval "rmdir $dir >/dev/null 2>&1" fi done exit $exit_status } if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then func_mode_uninstall ${1+"$@"} fi test -z "$opt_mode" && { help=$generic_help func_fatal_help "you must specify a MODE" } test -z "$exec_cmd" && \ func_fatal_help "invalid operation mode '$opt_mode'" if test -n "$exec_cmd"; then eval exec "$exec_cmd" exit $EXIT_FAILURE fi exit $exit_status # The TAGs below are defined such that we never get into a situation # where we disable both kinds of libraries. Given conflicting # choices, we go for a static library, that is the most portable, # since we can't tell whether shared libraries were disabled because # the user asked for that or because the platform doesn't support # them. This is particularly important on AIX, because we don't # support having both static and shared libraries enabled at the same # time on that platform, so we default to a shared-only configuration. # If a disable-shared tag is given, we'll fallback to a static-only # configuration. But we'll never go from static-only to shared-only. # ### BEGIN LIBTOOL TAG CONFIG: disable-shared build_libtool_libs=no build_old_libs=yes # ### END LIBTOOL TAG CONFIG: disable-shared # ### BEGIN LIBTOOL TAG CONFIG: disable-static build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac` # ### END LIBTOOL TAG CONFIG: disable-static # Local Variables: # mode:shell-script # sh-indentation:2 # End: dnscrypt-proxy-1.9.4/src/libevent-modified/m4/000755 000765 000024 00000000000 13040635351 020643 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/libevent-modified/make-event-config.sed000644 000765 000024 00000001036 13037731714 024325 0ustar00jstaff000000 000000 # Sed script to postprocess config.h into event-config.h. 1i\ /* event2/event-config.h\ *\ * This file was generated by autoconf when libevent was built, and post-\ * processed by Libevent so that its macros would have a uniform prefix.\ *\ * DO NOT EDIT THIS FILE.\ *\ * Do not rely on macros in this file existing in later versions.\ */\ \ #ifndef _EVENT2_EVENT_CONFIG_H_\ #define _EVENT2_EVENT_CONFIG_H_\ $a\ \ #endif /* event2/event-config.h */ s/#define /#define _EVENT_/ s/#undef /#undef _EVENT_/ s/#ifndef /#ifndef _EVENT_/ dnscrypt-proxy-1.9.4/src/libevent-modified/Makefile.am000644 000765 000024 00000016765 13037731714 022404 0ustar00jstaff000000 000000 # Makefile.am for libevent # Copyright 2000-2007 Niels Provos # Copyright 2007-2012 Niels Provos and Nick Mathewson # # See LICENSE for copying information. # 'foreign' means that we're not enforcing GNU package rules strictly. # '1.7' means that we need automake 1.7 or later (and we do). AUTOMAKE_OPTIONS = foreign 1.7 ACLOCAL_AMFLAGS = -I m4 # This is the "Release" of the Libevent ABI. It takes precedence over # the VERSION_INFO, so that two versions of Libevent with the same # "Release" are never binary-compatible. # # This number incremented once for the 2.0 release candidate, and # will increment for each series until we revise our interfaces enough # that we can seriously expect ABI compatibility between series. # RELEASE = -release 2.0 # This is the version info for the libevent binary API. It has three # numbers: # Current -- the number of the binary API that we're implementing # Revision -- which iteration of the implementation of the binary # API are we supplying? # Age -- How many previous binary API versions do we also # support? # # To increment a VERSION_INFO (current:revision:age): # If the ABI didn't change: # Return (current:revision+1:age) # If the ABI changed, but it's backward-compatible: # Return (current+1:0:age+1) # If the ABI changed and it isn't backward-compatible: # Return (current+1:0:0) # # Once an RC is out, DO NOT MAKE ANY ABI-BREAKING CHANGES IN THAT SERIES # UNLESS YOU REALLY REALLY HAVE TO. VERSION_INFO = 6:11:1 # History: RELEASE VERSION_INFO # 2.0.1-alpha -- 2.0 1:0:0 # 2.0.2-alpha -- 2:0:0 # 2.0.3-alpha -- 2:0:0 (should have incremented; didn't.) # 2.0.4-alpha -- 3:0:0 # 2.0.5-beta -- 4:0:0 # 2.0.6-rc -- 2.0 2:0:0 # 2.0.7-rc -- 2.0 3:0:1 # 2.0.8-rc -- 2.0 4:0:2 # 2.0.9-rc -- 2.0 5:0:0 (ABI changed slightly) # 2.0.10-stable-- 2.0 5:1:0 (No ABI change) # 2.0.11-stable-- 2.0 6:0:1 (ABI changed, backward-compatible) # 2.0.12-stable-- 2.0 6:1:1 (No ABI change) # 2.0.13-stable-- 2.0 6:2:1 (No ABI change) # 2.0.14-stable-- 2.0 6:3:1 (No ABI change) # 2.0.15-stable-- 2.0 6:3:1 (Forgot to update :( ) # 2.0.16-stable-- 2.0 6:4:1 (No ABI change) # 2.0.17-stable-- 2.0 6:5:1 (No ABI change) # 2.0.18-stable-- 2.0 6:6:1 (No ABI change) # 2.0.19-stable-- 2.0 6:7:1 (No ABI change) # 2.0.20-stable-- 2.0 6:8:1 (No ABI change) # 2.0.21-stable-- 2.0 6:9:1 (No ABI change) # 2.0.22-stable-- 2.0 6:10:1 (No ABI change) # 2.0.23-stable-- 2.0 6:11:1 (no ABI change) # # For Libevent 2.1: # 2.1.1-alpha -- 2.1 1:0:0 # ABI version history for this package effectively restarts every time # we change RELEASE. Version 1.4.x had RELEASE of 1.4. # # Ideally, we would not be using RELEASE at all; instead we could just # use the VERSION_INFO field to label our backward-incompatible ABI # changes, and those would be few and far between. Unfortunately, # Libevent still exposes far too many volatile structures in its # headers, so we pretty much have to assume that most development # series will break ABI compatibility. For now, it's simplest just to # keep incrementing the RELEASE between series and resetting VERSION_INFO. # # Eventually, when we get to the point where the structures in the # headers are all non-changing (or not there at all!), we can shift to # a more normal worldview where backward-incompatible ABI changes are # nice and rare. 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This makefile is a work in progress. It is probably missing # tons of important things. DO NOT RELY ON IT TO BUILD A GOOD LIBEVENT. # Needed for correctness CFLAGS=/IWIN32-Code /Iinclude /Icompat /DWIN32 /DHAVE_CONFIG_H /I. # For optimization and warnings CFLAGS=$(CFLAGS) /Ox /W3 /wd4996 /nologo # XXXX have a debug mode LIBFLAGS=/nologo CORE_OBJS=event.obj buffer.obj bufferevent.obj bufferevent_sock.obj \ bufferevent_pair.obj listener.obj evmap.obj log.obj evutil.obj \ strlcpy.obj signal.obj bufferevent_filter.obj evthread.obj \ bufferevent_ratelim.obj evutil_rand.obj WIN_OBJS=win32select.obj evthread_win32.obj buffer_iocp.obj \ event_iocp.obj bufferevent_async.obj EXTRA_OBJS=event_tagging.obj http.obj evdns.obj evrpc.obj ALL_OBJS=$(CORE_OBJS) $(WIN_OBJS) $(EXTRA_OBJS) STATIC_LIBS=libevent_core.lib libevent_extras.lib libevent.lib all: static_libs tests static_libs: $(STATIC_LIBS) libevent_core.lib: $(CORE_OBJS) $(WIN_OBJS) lib $(LIBFLAGS) $(CORE_OBJS) $(WIN_OBJS) /out:libevent_core.lib libevent_extras.lib: $(EXTRA_OBJS) lib $(LIBFLAGS) $(EXTRA_OBJS) /out:libevent_extras.lib libevent.lib: $(CORE_OBJS) $(WIN_OBJS) $(EXTRA_OBJS) lib $(LIBFLAGS) $(CORE_OBJS) $(EXTRA_OBJS) $(WIN_OBJS) /out:libevent.lib clean: del $(ALL_OBJS) del $(STATIC_LIBS) cd test $(MAKE) /F Makefile.nmake clean tests: cd test $(MAKE) /F Makefile.nmake dnscrypt-proxy-1.9.4/src/libevent-modified/minheap-internal.h000644 000765 000024 00000013211 13037731714 023733 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Copyright (c) 2006 Maxim Yegorushkin * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _MIN_HEAP_H_ #define _MIN_HEAP_H_ #include "event2/event-config.h" #include "event2/event.h" #include "event2/event_struct.h" #include "event2/util.h" #include "util-internal.h" #include "mm-internal.h" typedef struct min_heap { struct event** p; unsigned n, a; } min_heap_t; static inline void min_heap_ctor(min_heap_t* s); static inline void min_heap_dtor(min_heap_t* s); static inline void min_heap_elem_init(struct event* e); static inline int min_heap_elt_is_top(const struct event *e); static inline int min_heap_elem_greater(struct event *a, struct event *b); static inline int min_heap_empty(min_heap_t* s); static inline unsigned min_heap_size(min_heap_t* s); static inline struct event* min_heap_top(min_heap_t* s); static inline int min_heap_reserve(min_heap_t* s, unsigned n); static inline int min_heap_push(min_heap_t* s, struct event* e); static inline struct event* min_heap_pop(min_heap_t* s); static inline int min_heap_erase(min_heap_t* s, struct event* e); static inline void min_heap_shift_up_(min_heap_t* s, unsigned hole_index, struct event* e); static inline void min_heap_shift_down_(min_heap_t* s, unsigned hole_index, struct event* e); int min_heap_elem_greater(struct event *a, struct event *b) { return evutil_timercmp(&a->ev_timeout, &b->ev_timeout, >); } void min_heap_ctor(min_heap_t* s) { s->p = 0; s->n = 0; s->a = 0; } void min_heap_dtor(min_heap_t* s) { if (s->p) mm_free(s->p); } void min_heap_elem_init(struct event* e) { e->ev_timeout_pos.min_heap_idx = -1; } int min_heap_empty(min_heap_t* s) { return 0u == s->n; } unsigned min_heap_size(min_heap_t* s) { return s->n; } struct event* min_heap_top(min_heap_t* s) { return s->n ? *s->p : 0; } int min_heap_push(min_heap_t* s, struct event* e) { if (min_heap_reserve(s, s->n + 1)) return -1; min_heap_shift_up_(s, s->n++, e); return 0; } struct event* min_heap_pop(min_heap_t* s) { if (s->n) { struct event* e = *s->p; min_heap_shift_down_(s, 0u, s->p[--s->n]); e->ev_timeout_pos.min_heap_idx = -1; return e; } return 0; } int min_heap_elt_is_top(const struct event *e) { return e->ev_timeout_pos.min_heap_idx == 0; } int min_heap_erase(min_heap_t* s, struct event* e) { if (-1 != e->ev_timeout_pos.min_heap_idx) { struct event *last = s->p[--s->n]; unsigned parent = (e->ev_timeout_pos.min_heap_idx - 1) / 2; /* we replace e with the last element in the heap. We might need to shift it upward if it is less than its parent, or downward if it is greater than one or both its children. Since the children are known to be less than the parent, it can't need to shift both up and down. */ if (e->ev_timeout_pos.min_heap_idx > 0 && min_heap_elem_greater(s->p[parent], last)) min_heap_shift_up_(s, e->ev_timeout_pos.min_heap_idx, last); else min_heap_shift_down_(s, e->ev_timeout_pos.min_heap_idx, last); e->ev_timeout_pos.min_heap_idx = -1; return 0; } return -1; } int min_heap_reserve(min_heap_t* s, unsigned n) { if (s->a < n) { struct event** p; unsigned a = s->a ? s->a * 2 : 8; if (a < n) a = n; if (!(p = (struct event**)mm_realloc(s->p, a * sizeof *p))) return -1; s->p = p; s->a = a; } return 0; } void min_heap_shift_up_(min_heap_t* s, unsigned hole_index, struct event* e) { unsigned parent = (hole_index - 1) / 2; while (hole_index && min_heap_elem_greater(s->p[parent], e)) { (s->p[hole_index] = s->p[parent])->ev_timeout_pos.min_heap_idx = hole_index; hole_index = parent; parent = (hole_index - 1) / 2; } (s->p[hole_index] = e)->ev_timeout_pos.min_heap_idx = hole_index; } void min_heap_shift_down_(min_heap_t* s, unsigned hole_index, struct event* e) { unsigned min_child = 2 * (hole_index + 1); while (min_child <= s->n) { min_child -= min_child == s->n || min_heap_elem_greater(s->p[min_child], s->p[min_child - 1]); if (!(min_heap_elem_greater(e, s->p[min_child]))) break; (s->p[hole_index] = s->p[min_child])->ev_timeout_pos.min_heap_idx = hole_index; hole_index = min_child; min_child = 2 * (hole_index + 1); } (s->p[hole_index] = e)->ev_timeout_pos.min_heap_idx = hole_index; } #endif /* _MIN_HEAP_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/missing000755 000765 000024 00000015330 13040635261 021724 0ustar00jstaff000000 000000 #! /bin/sh # Common wrapper for a few potentially missing GNU programs. scriptversion=2013-10-28.13; # UTC # Copyright (C) 1996-2014 Free Software Foundation, Inc. # Originally written by Fran,cois Pinard , 1996. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVENT_MM_INTERNAL_H #define _EVENT_MM_INTERNAL_H #include #ifdef __cplusplus extern "C" { #endif #ifndef _EVENT_DISABLE_MM_REPLACEMENT /* Internal use only: Memory allocation functions. We give them nice short * mm_names for our own use, but make sure that the symbols have longer names * so they don't conflict with other libraries (like, say, libmm). */ void *event_mm_malloc_(size_t sz); void *event_mm_calloc_(size_t count, size_t size); char *event_mm_strdup_(const char *s); void *event_mm_realloc_(void *p, size_t sz); void event_mm_free_(void *p); #define mm_malloc(sz) event_mm_malloc_(sz) #define mm_calloc(count, size) event_mm_calloc_((count), (size)) #define mm_strdup(s) event_mm_strdup_(s) #define mm_realloc(p, sz) event_mm_realloc_((p), (sz)) #define mm_free(p) event_mm_free_(p) #else #define mm_malloc(sz) malloc(sz) #define mm_calloc(n, sz) calloc((n), (sz)) #define mm_strdup(s) strdup(s) #define mm_realloc(p, sz) realloc((p), (sz)) #define mm_free(p) free(p) #endif #ifdef __cplusplus } #endif #endif dnscrypt-proxy-1.9.4/src/libevent-modified/poll.c000644 000765 000024 00000017437 13037731714 021457 0ustar00jstaff000000 000000 /* $OpenBSD: poll.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */ /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #include #include #include #include #include #include #include #include #include "event-internal.h" #include "evsignal-internal.h" #include "log-internal.h" #include "evmap-internal.h" #include "event2/thread.h" #include "evthread-internal.h" struct pollidx { int idxplus1; }; struct pollop { int event_count; /* Highest number alloc */ int nfds; /* Highest number used */ int realloc_copy; /* True iff we must realloc * event_set_copy */ struct pollfd *event_set; struct pollfd *event_set_copy; }; static void *poll_init(struct event_base *); static int poll_add(struct event_base *, int, short old, short events, void *_idx); static int poll_del(struct event_base *, int, short old, short events, void *_idx); static int poll_dispatch(struct event_base *, struct timeval *); static void poll_dealloc(struct event_base *); const struct eventop pollops = { "poll", poll_init, poll_add, poll_del, poll_dispatch, poll_dealloc, 0, /* doesn't need_reinit */ EV_FEATURE_FDS, sizeof(struct pollidx), }; static void * poll_init(struct event_base *base) { struct pollop *pollop; if (!(pollop = mm_calloc(1, sizeof(struct pollop)))) return (NULL); evsig_init(base); return (pollop); } #ifdef CHECK_INVARIANTS static void poll_check_ok(struct pollop *pop) { int i, idx; struct event *ev; for (i = 0; i < pop->fd_count; ++i) { idx = pop->idxplus1_by_fd[i]-1; if (idx < 0) continue; EVUTIL_ASSERT(pop->event_set[idx].fd == i); } for (i = 0; i < pop->nfds; ++i) { struct pollfd *pfd = &pop->event_set[i]; EVUTIL_ASSERT(pop->idxplus1_by_fd[pfd->fd] == i+1); } } #else #define poll_check_ok(pop) #endif static int poll_dispatch(struct event_base *base, struct timeval *tv) { int res, i, j, nfds; long msec = -1; struct pollop *pop = base->evbase; struct pollfd *event_set; poll_check_ok(pop); nfds = pop->nfds; #ifndef _EVENT_DISABLE_THREAD_SUPPORT if (base->th_base_lock) { /* If we're using this backend in a multithreaded setting, * then we need to work on a copy of event_set, so that we can * let other threads modify the main event_set while we're * polling. If we're not multithreaded, then we'll skip the * copy step here to save memory and time. */ if (pop->realloc_copy) { struct pollfd *tmp = mm_realloc(pop->event_set_copy, pop->event_count * sizeof(struct pollfd)); if (tmp == NULL) { event_warn("realloc"); return -1; } pop->event_set_copy = tmp; pop->realloc_copy = 0; } memcpy(pop->event_set_copy, pop->event_set, sizeof(struct pollfd)*nfds); event_set = pop->event_set_copy; } else { event_set = pop->event_set; } #else event_set = pop->event_set; #endif if (tv != NULL) { msec = evutil_tv_to_msec(tv); if (msec < 0 || msec > INT_MAX) msec = INT_MAX; } EVBASE_RELEASE_LOCK(base, th_base_lock); res = poll(event_set, nfds, msec); EVBASE_ACQUIRE_LOCK(base, th_base_lock); if (res == -1) { if (errno != EINTR) { event_warn("poll"); return (-1); } return (0); } event_debug(("%s: poll reports %d", __func__, res)); if (res == 0 || nfds == 0) return (0); i = random() % nfds; for (j = 0; j < nfds; j++) { int what; if (++i == nfds) i = 0; what = event_set[i].revents; if (!what) continue; res = 0; /* If the file gets closed notify */ if (what & (POLLHUP|POLLERR)) what |= POLLIN|POLLOUT; if (what & POLLIN) res |= EV_READ; if (what & POLLOUT) res |= EV_WRITE; if (res == 0) continue; evmap_io_active(base, event_set[i].fd, res); } return (0); } static int poll_add(struct event_base *base, int fd, short old, short events, void *_idx) { struct pollop *pop = base->evbase; struct pollfd *pfd = NULL; struct pollidx *idx = _idx; int i; EVUTIL_ASSERT((events & EV_SIGNAL) == 0); if (!(events & (EV_READ|EV_WRITE))) return (0); poll_check_ok(pop); if (pop->nfds + 1 >= pop->event_count) { struct pollfd *tmp_event_set; int tmp_event_count; if (pop->event_count < 32) tmp_event_count = 32; else tmp_event_count = pop->event_count * 2; /* We need more file descriptors */ tmp_event_set = mm_realloc(pop->event_set, tmp_event_count * sizeof(struct pollfd)); if (tmp_event_set == NULL) { event_warn("realloc"); return (-1); } pop->event_set = tmp_event_set; pop->event_count = tmp_event_count; pop->realloc_copy = 1; } i = idx->idxplus1 - 1; if (i >= 0) { pfd = &pop->event_set[i]; } else { i = pop->nfds++; pfd = &pop->event_set[i]; pfd->events = 0; pfd->fd = fd; idx->idxplus1 = i + 1; } pfd->revents = 0; if (events & EV_WRITE) pfd->events |= POLLOUT; if (events & EV_READ) pfd->events |= POLLIN; poll_check_ok(pop); return (0); } /* * Nothing to be done here. */ static int poll_del(struct event_base *base, int fd, short old, short events, void *_idx) { struct pollop *pop = base->evbase; struct pollfd *pfd = NULL; struct pollidx *idx = _idx; int i; EVUTIL_ASSERT((events & EV_SIGNAL) == 0); if (!(events & (EV_READ|EV_WRITE))) return (0); poll_check_ok(pop); i = idx->idxplus1 - 1; if (i < 0) return (-1); /* Do we still want to read or write? */ pfd = &pop->event_set[i]; if (events & EV_READ) pfd->events &= ~POLLIN; if (events & EV_WRITE) pfd->events &= ~POLLOUT; poll_check_ok(pop); if (pfd->events) /* Another event cares about that fd. */ return (0); /* Okay, so we aren't interested in that fd anymore. */ idx->idxplus1 = 0; --pop->nfds; if (i != pop->nfds) { /* * Shift the last pollfd down into the now-unoccupied * position. */ memcpy(&pop->event_set[i], &pop->event_set[pop->nfds], sizeof(struct pollfd)); idx = evmap_io_get_fdinfo(&base->io, pop->event_set[i].fd); EVUTIL_ASSERT(idx); EVUTIL_ASSERT(idx->idxplus1 == pop->nfds + 1); idx->idxplus1 = i + 1; } poll_check_ok(pop); return (0); } static void poll_dealloc(struct event_base *base) { struct pollop *pop = base->evbase; evsig_dealloc(base); if (pop->event_set) mm_free(pop->event_set); if (pop->event_set_copy) mm_free(pop->event_set_copy); memset(pop, 0, sizeof(struct pollop)); mm_free(pop); } dnscrypt-proxy-1.9.4/src/libevent-modified/ratelim-internal.h000644 000765 000024 00000007750 13037731714 023762 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _RATELIM_INTERNAL_H_ #define _RATELIM_INTERNAL_H_ #ifdef __cplusplus extern "C" { #endif #include "event2/util.h" /** A token bucket is an internal structure that tracks how many bytes we are * currently willing to read or write on a given bufferevent or group of * bufferevents */ struct ev_token_bucket { /** How many bytes are we willing to read or write right now? These * values are signed so that we can do "defecit spending" */ ev_ssize_t read_limit, write_limit; /** When was this bucket last updated? Measured in abstract 'ticks' * relative to the token bucket configuration. */ ev_uint32_t last_updated; }; /** Configuration info for a token bucket or set of token buckets. */ struct ev_token_bucket_cfg { /** How many bytes are we willing to read on average per tick? */ size_t read_rate; /** How many bytes are we willing to read at most in any one tick? */ size_t read_maximum; /** How many bytes are we willing to write on average per tick? */ size_t write_rate; /** How many bytes are we willing to write at most in any one tick? */ size_t write_maximum; /* How long is a tick? Note that fractions of a millisecond are * ignored. */ struct timeval tick_timeout; /* How long is a tick, in milliseconds? Derived from tick_timeout. */ unsigned msec_per_tick; }; /** The current tick is 'current_tick': add bytes to 'bucket' as specified in * 'cfg'. */ int ev_token_bucket_update(struct ev_token_bucket *bucket, const struct ev_token_bucket_cfg *cfg, ev_uint32_t current_tick); /** In which tick does 'tv' fall according to 'cfg'? Note that ticks can * overflow easily; your code needs to handle this. */ ev_uint32_t ev_token_bucket_get_tick(const struct timeval *tv, const struct ev_token_bucket_cfg *cfg); /** Adjust 'bucket' to respect 'cfg', and note that it was last updated in * 'current_tick'. If 'reinitialize' is true, we are changing the * configuration of 'bucket'; otherwise, we are setting it up for the first * time. */ int ev_token_bucket_init(struct ev_token_bucket *bucket, const struct ev_token_bucket_cfg *cfg, ev_uint32_t current_tick, int reinitialize); int bufferevent_remove_from_rate_limit_group_internal(struct bufferevent *bev, int unsuspend); /** Decrease the read limit of 'b' by 'n' bytes */ #define ev_token_bucket_decrement_read(b,n) \ do { \ (b)->read_limit -= (n); \ } while (0) /** Decrease the write limit of 'b' by 'n' bytes */ #define ev_token_bucket_decrement_write(b,n) \ do { \ (b)->write_limit -= (n); \ } while (0) #ifdef __cplusplus } #endif #endif dnscrypt-proxy-1.9.4/src/libevent-modified/README000644 000765 000024 00000007743 13037731714 021224 0ustar00jstaff000000 000000 0. BUILDING AND INSTALLATION (Briefly) $ ./configure $ make $ make verify # (optional) $ sudo make install 1. BUILDING AND INSTALLATION (In Depth) To build libevent, type $ ./configure && make (If you got libevent from the git repository, you will first need to run the included "autogen.sh" script in order to generate the configure script.) You can run the regression tests by running $ make verify Install as root via # make install Before, reporting any problems, please run the regression tests. To enable the low-level tracing build the library as: CFLAGS=-DUSE_DEBUG ./configure [...] Standard configure flags should work. In particular, see: --disable-shared Only build static libraries --prefix Install all files relative to this directory. The configure script also supports the following flags: --enable-gcc-warnings Enable extra compiler checking with GCC. --disable-malloc-replacement Don't let applications replace our memory management functions --disable-openssl Disable support for OpenSSL encryption. --disable-thread-support Don't support multithreaded environments. 2. USEFUL LINKS: For the latest released version of Libevent, see the official website at http://libevent.org/ . There's a pretty good work-in-progress manual up at http://www.wangafu.net/~nickm/libevent-book/ . For the latest development versions of Libevent, access our Git repository via "git clone git://levent.git.sourceforge.net/gitroot/levent/libevent" You can browse the git repository online at http://levent.git.sourceforge.net/git/gitweb-index.cgi . To report bugs, request features, or submit patches to Libevent, use the Sourceforge trackers at https://sourceforge.net/tracker/?group_id=50884 . There's also a libevent-users mailing list for talking about Libevent use and development: http://archives.seul.org/libevent/users/ 3. ACKNOWLEDGMENTS The following people have helped with suggestions, ideas, code or fixing bugs: Arno Bakker Alejo Weston Andros Adamson William Ahern Ivan Andropov Sergey Avseyev Avi Bab Gilad Benjamini Stas Bekman Joachim Bauch Denis Bilenko Julien Blache Kevin Bowling Tomash Brechko Kelly Brock Ralph Castain Adrian Chadd Lawnstein Chan Shuo Chen Ka-Hing Cheung Andrew Cox George Danchev Andrew Danforth Antony Dovgal Ed Day Christopher Davis Mike Davis Mihai Draghicioiu Mark Ellzey Shie Erlich Leonid Evdokimov Juan Pablo Fernandez Christophe Fillot Mike Frysinger Remi Gacogne Alexander von Gernler Artur Grabowski Sebastian Hahn Dave Hart Greg Hazel Michael Herf Savg He Mark Heily Greg Hewgill Andrew Hochhaus Aaron Hopkins Tani Hosokawa Jamie Iles Claudio Jeker Evan Jones George Kadianakis Phua Keat Kevin Ko Brian Koehmstedt Marko Kreen Valery Kyholodov Ross Lagerwall Scott Lamb Christopher Layne Adam Langley Philip Lewis Zhou Li David Libenzi Yan Lin Moshe Litvin Simon Liu Mitchell Livingston Hagne Mahre Lubomir Marinov Abilio Marques Nick Mathewson James Mansion Nicholas Marriott Andrey Matveev Caitlin Mercer Dagobert Michelsen Mansour Moufid Felix Nawothnig Trond Norbye Linus Nordberg Richard Nyberg Jon Oberheide Phil Oleson Dave Pacheco Tassilo von Parseval Catalin Patulea Patrick Pelletier Simon Perreault Pierre Phaneuf Ryan Phillips Dimitre Piskyulev Pavel Plesov Jon Poland Nate R Robert Ransom Bert JW Regeer Peter Rosin Maseeb Abdul Qadir Wang Qin Alex S Hanna Schroeter Ralf Schmitt Mike Smellie Kevin Springborn Harlan Stenn Steve Snyder Dug Song Dongsheng Song Hannes Sowa Ferenc Szalai Brodie Thiesfield Jason Toffaletti Gisle Vanem Bas Verhoeven Constantine Verutin Colin Watt Zack Weinberg Jardel Weyrich Alex Taral propanbutan mmadia If we have forgotten your name, please contact us. dnscrypt-proxy-1.9.4/src/libevent-modified/select.c000644 000765 000024 00000020263 13037731714 021757 0ustar00jstaff000000 000000 /* $OpenBSD: select.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */ /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #ifdef _EVENT_HAVE_SYS_SELECT_H #include #endif #include #include #include #include #include #include #include #include "event-internal.h" #include "evsignal-internal.h" #include "event2/thread.h" #include "evthread-internal.h" #include "log-internal.h" #include "evmap-internal.h" #ifndef _EVENT_HAVE_FD_MASK /* This type is mandatory, but Android doesn't define it. */ typedef unsigned long fd_mask; #endif #ifndef NFDBITS #define NFDBITS (sizeof(fd_mask)*8) #endif /* Divide positive x by y, rounding up. */ #define DIV_ROUNDUP(x, y) (((x)+((y)-1))/(y)) /* How many bytes to allocate for N fds? */ #define SELECT_ALLOC_SIZE(n) \ (DIV_ROUNDUP(n, NFDBITS) * sizeof(fd_mask)) struct selectop { int event_fds; /* Highest fd in fd set */ int event_fdsz; int resize_out_sets; fd_set *event_readset_in; fd_set *event_writeset_in; fd_set *event_readset_out; fd_set *event_writeset_out; }; static void *select_init(struct event_base *); static int select_add(struct event_base *, int, short old, short events, void*); static int select_del(struct event_base *, int, short old, short events, void*); static int select_dispatch(struct event_base *, struct timeval *); static void select_dealloc(struct event_base *); const struct eventop selectops = { "select", select_init, select_add, select_del, select_dispatch, select_dealloc, 0, /* doesn't need reinit. */ EV_FEATURE_FDS, 0, }; static int select_resize(struct selectop *sop, int fdsz); static void select_free_selectop(struct selectop *sop); static void * select_init(struct event_base *base) { struct selectop *sop; if (!(sop = mm_calloc(1, sizeof(struct selectop)))) return (NULL); if (select_resize(sop, SELECT_ALLOC_SIZE(32 + 1))) { select_free_selectop(sop); return (NULL); } evsig_init(base); return (sop); } #ifdef CHECK_INVARIANTS static void check_selectop(struct selectop *sop) { /* nothing to be done here */ } #else #define check_selectop(sop) do { (void) sop; } while (0) #endif static int select_dispatch(struct event_base *base, struct timeval *tv) { int res=0, i, j, nfds; struct selectop *sop = base->evbase; check_selectop(sop); if (sop->resize_out_sets) { fd_set *readset_out=NULL, *writeset_out=NULL; size_t sz = sop->event_fdsz; if (!(readset_out = mm_realloc(sop->event_readset_out, sz))) return (-1); sop->event_readset_out = readset_out; if (!(writeset_out = mm_realloc(sop->event_writeset_out, sz))) { /* We don't free readset_out here, since it was * already successfully reallocated. The next time * we call select_dispatch, the realloc will be a * no-op. */ return (-1); } sop->event_writeset_out = writeset_out; sop->resize_out_sets = 0; } memcpy(sop->event_readset_out, sop->event_readset_in, sop->event_fdsz); memcpy(sop->event_writeset_out, sop->event_writeset_in, sop->event_fdsz); nfds = sop->event_fds+1; EVBASE_RELEASE_LOCK(base, th_base_lock); res = select(nfds, sop->event_readset_out, sop->event_writeset_out, NULL, tv); EVBASE_ACQUIRE_LOCK(base, th_base_lock); check_selectop(sop); if (res == -1) { if (errno != EINTR) { event_warn("select"); return (-1); } return (0); } event_debug(("%s: select reports %d", __func__, res)); check_selectop(sop); i = random() % nfds; for (j = 0; j < nfds; ++j) { if (++i >= nfds) i = 0; res = 0; if (FD_ISSET(i, sop->event_readset_out)) res |= EV_READ; if (FD_ISSET(i, sop->event_writeset_out)) res |= EV_WRITE; if (res == 0) continue; evmap_io_active(base, i, res); } check_selectop(sop); return (0); } static int select_resize(struct selectop *sop, int fdsz) { fd_set *readset_in = NULL; fd_set *writeset_in = NULL; if (sop->event_readset_in) check_selectop(sop); if ((readset_in = mm_realloc(sop->event_readset_in, fdsz)) == NULL) goto error; sop->event_readset_in = readset_in; if ((writeset_in = mm_realloc(sop->event_writeset_in, fdsz)) == NULL) { /* Note that this will leave event_readset_in expanded. * That's okay; we wouldn't want to free it, since that would * change the semantics of select_resize from "expand the * readset_in and writeset_in, or return -1" to "expand the * *set_in members, or trash them and return -1." */ goto error; } sop->event_writeset_in = writeset_in; sop->resize_out_sets = 1; memset((char *)sop->event_readset_in + sop->event_fdsz, 0, fdsz - sop->event_fdsz); memset((char *)sop->event_writeset_in + sop->event_fdsz, 0, fdsz - sop->event_fdsz); sop->event_fdsz = fdsz; check_selectop(sop); return (0); error: event_warn("malloc"); return (-1); } static int select_add(struct event_base *base, int fd, short old, short events, void *p) { struct selectop *sop = base->evbase; (void) p; EVUTIL_ASSERT((events & EV_SIGNAL) == 0); check_selectop(sop); /* * Keep track of the highest fd, so that we can calculate the size * of the fd_sets for select(2) */ if (sop->event_fds < fd) { int fdsz = sop->event_fdsz; if (fdsz < (int)sizeof(fd_mask)) fdsz = (int)sizeof(fd_mask); /* In theory we should worry about overflow here. In * reality, though, the highest fd on a unixy system will * not overflow here. XXXX */ while (fdsz < (int) SELECT_ALLOC_SIZE(fd + 1)) fdsz *= 2; if (fdsz != sop->event_fdsz) { if (select_resize(sop, fdsz)) { check_selectop(sop); return (-1); } } sop->event_fds = fd; } if (events & EV_READ) FD_SET(fd, sop->event_readset_in); if (events & EV_WRITE) FD_SET(fd, sop->event_writeset_in); check_selectop(sop); return (0); } /* * Nothing to be done here. */ static int select_del(struct event_base *base, int fd, short old, short events, void *p) { struct selectop *sop = base->evbase; (void)p; EVUTIL_ASSERT((events & EV_SIGNAL) == 0); check_selectop(sop); if (sop->event_fds < fd) { check_selectop(sop); return (0); } if (events & EV_READ) FD_CLR(fd, sop->event_readset_in); if (events & EV_WRITE) FD_CLR(fd, sop->event_writeset_in); check_selectop(sop); return (0); } static void select_free_selectop(struct selectop *sop) { if (sop->event_readset_in) mm_free(sop->event_readset_in); if (sop->event_writeset_in) mm_free(sop->event_writeset_in); if (sop->event_readset_out) mm_free(sop->event_readset_out); if (sop->event_writeset_out) mm_free(sop->event_writeset_out); memset(sop, 0, sizeof(struct selectop)); mm_free(sop); } static void select_dealloc(struct event_base *base) { evsig_dealloc(base); select_free_selectop(base->evbase); } dnscrypt-proxy-1.9.4/src/libevent-modified/signal.c000644 000765 000024 00000027475 13037731714 021771 0ustar00jstaff000000 000000 /* $OpenBSD: select.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */ /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "event2/event-config.h" #ifdef WIN32 #define WIN32_LEAN_AND_MEAN #include #include #undef WIN32_LEAN_AND_MEAN #endif #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #include #include #include #include #ifdef _EVENT_HAVE_UNISTD_H #include #endif #include #ifdef _EVENT_HAVE_FCNTL_H #include #endif #include "event2/event.h" #include "event2/event_struct.h" #include "event-internal.h" #include "event2/util.h" #include "evsignal-internal.h" #include "log-internal.h" #include "evmap-internal.h" #include "evthread-internal.h" /* signal.c This is the signal-handling implementation we use for backends that don't have a better way to do signal handling. It uses sigaction() or signal() to set a signal handler, and a socket pair to tell the event base when Note that I said "the event base" : only one event base can be set up to use this at a time. For historical reasons and backward compatibility, if you add an event for a signal to event_base A, then add an event for a signal (any signal!) to event_base B, event_base B will get informed about the signal, but event_base A won't. It would be neat to change this behavior in some future version of Libevent. kqueue already does something far more sensible. We can make all backends on Linux do a reasonable thing using signalfd. */ #ifndef WIN32 /* Windows wants us to call our signal handlers as __cdecl. Nobody else * expects you to do anything crazy like this. */ #define __cdecl #endif static int evsig_add(struct event_base *, evutil_socket_t, short, short, void *); static int evsig_del(struct event_base *, evutil_socket_t, short, short, void *); static const struct eventop evsigops = { "signal", NULL, evsig_add, evsig_del, NULL, NULL, 0, 0, 0 }; #ifndef _EVENT_DISABLE_THREAD_SUPPORT /* Lock for evsig_base and evsig_base_n_signals_added fields. */ static void *evsig_base_lock = NULL; #endif /* The event base that's currently getting informed about signals. */ static struct event_base *evsig_base = NULL; /* A copy of evsig_base->sigev_n_signals_added. */ static int evsig_base_n_signals_added = 0; static evutil_socket_t evsig_base_fd = -1; static void __cdecl evsig_handler(int sig); #define EVSIGBASE_LOCK() EVLOCK_LOCK(evsig_base_lock, 0) #define EVSIGBASE_UNLOCK() EVLOCK_UNLOCK(evsig_base_lock, 0) void evsig_set_base(struct event_base *base) { EVSIGBASE_LOCK(); evsig_base = base; evsig_base_n_signals_added = base->sig.ev_n_signals_added; evsig_base_fd = base->sig.ev_signal_pair[0]; EVSIGBASE_UNLOCK(); } /* Callback for when the signal handler write a byte to our signaling socket */ static void evsig_cb(evutil_socket_t fd, short what, void *arg) { static char signals[1024]; ev_ssize_t n; int i; int ncaught[NSIG]; struct event_base *base; base = arg; memset(&ncaught, 0, sizeof(ncaught)); while (1) { n = recv(fd, signals, sizeof(signals), 0); if (n == -1) { int err = evutil_socket_geterror(fd); if (! EVUTIL_ERR_RW_RETRIABLE(err)) event_sock_err(1, fd, "%s: recv", __func__); break; } else if (n == 0) { /* XXX warn? */ break; } for (i = 0; i < n; ++i) { ev_uint8_t sig = signals[i]; if (sig < NSIG) ncaught[sig]++; } } EVBASE_ACQUIRE_LOCK(base, th_base_lock); for (i = 0; i < NSIG; ++i) { if (ncaught[i]) evmap_signal_active(base, i, ncaught[i]); } EVBASE_RELEASE_LOCK(base, th_base_lock); } int evsig_init(struct event_base *base) { /* * Our signal handler is going to write to one end of the socket * pair to wake up our event loop. The event loop then scans for * signals that got delivered. */ if (evutil_socketpair( AF_UNIX, SOCK_STREAM, 0, base->sig.ev_signal_pair) == -1) { #ifdef WIN32 /* Make this nonfatal on win32, where sometimes people have localhost firewalled. */ event_sock_warn(-1, "%s: socketpair", __func__); #else event_sock_err(1, -1, "%s: socketpair", __func__); #endif return -1; } evutil_make_socket_closeonexec(base->sig.ev_signal_pair[0]); evutil_make_socket_closeonexec(base->sig.ev_signal_pair[1]); base->sig.sh_old = NULL; base->sig.sh_old_max = 0; evutil_make_socket_nonblocking(base->sig.ev_signal_pair[0]); evutil_make_socket_nonblocking(base->sig.ev_signal_pair[1]); event_assign(&base->sig.ev_signal, base, base->sig.ev_signal_pair[1], EV_READ | EV_PERSIST, evsig_cb, base); base->sig.ev_signal.ev_flags |= EVLIST_INTERNAL; event_priority_set(&base->sig.ev_signal, 0); base->evsigsel = &evsigops; return 0; } /* Helper: set the signal handler for evsignal to handler in base, so that * we can restore the original handler when we clear the current one. */ int _evsig_set_handler(struct event_base *base, int evsignal, void (__cdecl *handler)(int)) { #ifdef _EVENT_HAVE_SIGACTION struct sigaction sa; #else ev_sighandler_t sh; #endif struct evsig_info *sig = &base->sig; void *p; /* * resize saved signal handler array up to the highest signal number. * a dynamic array is used to keep footprint on the low side. */ if (evsignal >= sig->sh_old_max) { int new_max = evsignal + 1; event_debug(("%s: evsignal (%d) >= sh_old_max (%d), resizing", __func__, evsignal, sig->sh_old_max)); p = mm_realloc(sig->sh_old, new_max * sizeof(*sig->sh_old)); if (p == NULL) { event_warn("realloc"); return (-1); } memset((char *)p + sig->sh_old_max * sizeof(*sig->sh_old), 0, (new_max - sig->sh_old_max) * sizeof(*sig->sh_old)); sig->sh_old_max = new_max; sig->sh_old = p; } /* allocate space for previous handler out of dynamic array */ sig->sh_old[evsignal] = mm_malloc(sizeof *sig->sh_old[evsignal]); if (sig->sh_old[evsignal] == NULL) { event_warn("malloc"); return (-1); } /* save previous handler and setup new handler */ #ifdef _EVENT_HAVE_SIGACTION memset(&sa, 0, sizeof(sa)); sa.sa_handler = handler; sa.sa_flags |= SA_RESTART; sigfillset(&sa.sa_mask); if (sigaction(evsignal, &sa, sig->sh_old[evsignal]) == -1) { event_warn("sigaction"); mm_free(sig->sh_old[evsignal]); sig->sh_old[evsignal] = NULL; return (-1); } #else if ((sh = signal(evsignal, handler)) == SIG_ERR) { event_warn("signal"); mm_free(sig->sh_old[evsignal]); sig->sh_old[evsignal] = NULL; return (-1); } *sig->sh_old[evsignal] = sh; #endif return (0); } static int evsig_add(struct event_base *base, evutil_socket_t evsignal, short old, short events, void *p) { struct evsig_info *sig = &base->sig; (void)p; EVUTIL_ASSERT(evsignal >= 0 && evsignal < NSIG); /* catch signals if they happen quickly */ EVSIGBASE_LOCK(); if (evsig_base != base && evsig_base_n_signals_added) { event_warnx("Added a signal to event base %p with signals " "already added to event_base %p. Only one can have " "signals at a time with the %s backend. The base with " "the most recently added signal or the most recent " "event_base_loop() call gets preference; do " "not rely on this behavior in future Libevent versions.", base, evsig_base, base->evsel->name); } evsig_base = base; evsig_base_n_signals_added = ++sig->ev_n_signals_added; evsig_base_fd = base->sig.ev_signal_pair[0]; EVSIGBASE_UNLOCK(); event_debug(("%s: %d: changing signal handler", __func__, (int)evsignal)); if (_evsig_set_handler(base, (int)evsignal, evsig_handler) == -1) { goto err; } if (!sig->ev_signal_added) { if (event_add(&sig->ev_signal, NULL)) goto err; sig->ev_signal_added = 1; } return (0); err: EVSIGBASE_LOCK(); --evsig_base_n_signals_added; --sig->ev_n_signals_added; EVSIGBASE_UNLOCK(); return (-1); } int _evsig_restore_handler(struct event_base *base, int evsignal) { int ret = 0; struct evsig_info *sig = &base->sig; #ifdef _EVENT_HAVE_SIGACTION struct sigaction *sh; #else ev_sighandler_t *sh; #endif /* restore previous handler */ sh = sig->sh_old[evsignal]; sig->sh_old[evsignal] = NULL; #ifdef _EVENT_HAVE_SIGACTION if (sigaction(evsignal, sh, NULL) == -1) { event_warn("sigaction"); ret = -1; } #else if (signal(evsignal, *sh) == SIG_ERR) { event_warn("signal"); ret = -1; } #endif mm_free(sh); return ret; } static int evsig_del(struct event_base *base, evutil_socket_t evsignal, short old, short events, void *p) { EVUTIL_ASSERT(evsignal >= 0 && evsignal < NSIG); event_debug(("%s: "EV_SOCK_FMT": restoring signal handler", __func__, EV_SOCK_ARG(evsignal))); EVSIGBASE_LOCK(); --evsig_base_n_signals_added; --base->sig.ev_n_signals_added; EVSIGBASE_UNLOCK(); return (_evsig_restore_handler(base, (int)evsignal)); } static void __cdecl evsig_handler(int sig) { int save_errno = errno; #ifdef WIN32 int socket_errno = EVUTIL_SOCKET_ERROR(); #endif ev_uint8_t msg; if (evsig_base == NULL) { event_warnx( "%s: received signal %d, but have no base configured", __func__, sig); return; } #ifndef _EVENT_HAVE_SIGACTION signal(sig, evsig_handler); #endif /* Wake up our notification mechanism */ msg = sig; send(evsig_base_fd, (char*)&msg, 1, 0); errno = save_errno; #ifdef WIN32 EVUTIL_SET_SOCKET_ERROR(socket_errno); #endif } void evsig_dealloc(struct event_base *base) { int i = 0; if (base->sig.ev_signal_added) { event_del(&base->sig.ev_signal); base->sig.ev_signal_added = 0; } /* debug event is created in evsig_init/event_assign even when * ev_signal_added == 0, so unassign is required */ event_debug_unassign(&base->sig.ev_signal); for (i = 0; i < NSIG; ++i) { if (i < base->sig.sh_old_max && base->sig.sh_old[i] != NULL) _evsig_restore_handler(base, i); } EVSIGBASE_LOCK(); if (base == evsig_base) { evsig_base = NULL; evsig_base_n_signals_added = 0; evsig_base_fd = -1; } EVSIGBASE_UNLOCK(); if (base->sig.ev_signal_pair[0] != -1) { evutil_closesocket(base->sig.ev_signal_pair[0]); base->sig.ev_signal_pair[0] = -1; } if (base->sig.ev_signal_pair[1] != -1) { evutil_closesocket(base->sig.ev_signal_pair[1]); base->sig.ev_signal_pair[1] = -1; } base->sig.sh_old_max = 0; /* per index frees are handled in evsig_del() */ if (base->sig.sh_old) { mm_free(base->sig.sh_old); base->sig.sh_old = NULL; } } #ifndef _EVENT_DISABLE_THREAD_SUPPORT int evsig_global_setup_locks_(const int enable_locks) { EVTHREAD_SETUP_GLOBAL_LOCK(evsig_base_lock, 0); return 0; } #endif dnscrypt-proxy-1.9.4/src/libevent-modified/strlcpy-internal.h000644 000765 000024 00000000500 13037731714 024007 0ustar00jstaff000000 000000 #ifndef _STRLCPY_INTERNAL_H_ #define _STRLCPY_INTERNAL_H_ #ifdef __cplusplus extern "C" { #endif #include "event2/event-config.h" #ifndef _EVENT_HAVE_STRLCPY #include size_t _event_strlcpy(char *dst, const char *src, size_t siz); #define strlcpy _event_strlcpy #endif #ifdef __cplusplus } #endif #endif dnscrypt-proxy-1.9.4/src/libevent-modified/strlcpy.c000644 000765 000024 00000004770 13037731714 022205 0ustar00jstaff000000 000000 /* $OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $ */ /* * Copyright (c) 1998 Todd C. Miller * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #if defined(LIBC_SCCS) && !defined(lint) static char *rcsid = "$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $"; #endif /* LIBC_SCCS and not lint */ #include #include "event2/event-config.h" #ifndef _EVENT_HAVE_STRLCPY #include "strlcpy-internal.h" /* * Copy src to string dst of size siz. At most siz-1 characters * will be copied. Always NUL terminates (unless siz == 0). * Returns strlen(src); if retval >= siz, truncation occurred. */ size_t _event_strlcpy(dst, src, siz) char *dst; const char *src; size_t siz; { register char *d = dst; register const char *s = src; register size_t n = siz; /* Copy as many bytes as will fit */ if (n != 0 && --n != 0) { do { if ((*d++ = *s++) == 0) break; } while (--n != 0); } /* Not enough room in dst, add NUL and traverse rest of src */ if (n == 0) { if (siz != 0) *d = '\0'; /* NUL-terminate dst */ while (*s++) ; } return (s - src - 1); /* count does not include NUL */ } #endif dnscrypt-proxy-1.9.4/src/libevent-modified/test/000755 000765 000024 00000000000 13040635351 021302 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/libevent-modified/test-driver000755 000765 000024 00000011040 13040635262 022516 0ustar00jstaff000000 000000 #! /bin/sh # test-driver - basic testsuite driver script. scriptversion=2013-07-13.22; # UTC # Copyright (C) 2011-2014 Free Software Foundation, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # This file is maintained in Automake, please report # bugs to or send patches to # . # Make unconditional expansion of undefined variables an error. This # helps a lot in preventing typo-related bugs. set -u usage_error () { echo "$0: $*" >&2 print_usage >&2 exit 2 } print_usage () { cat <$log_file 2>&1 estatus=$? if test $enable_hard_errors = no && test $estatus -eq 99; then tweaked_estatus=1 else tweaked_estatus=$estatus fi case $tweaked_estatus:$expect_failure in 0:yes) col=$red res=XPASS recheck=yes gcopy=yes;; 0:*) col=$grn res=PASS recheck=no gcopy=no;; 77:*) col=$blu res=SKIP recheck=no gcopy=yes;; 99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;; *:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;; *:*) col=$red res=FAIL recheck=yes gcopy=yes;; esac # Report the test outcome and exit status in the logs, so that one can # know whether the test passed or failed simply by looking at the '.log' # file, without the need of also peaking into the corresponding '.trs' # file (automake bug#11814). echo "$res $test_name (exit status: $estatus)" >>$log_file # Report outcome to console. echo "${col}${res}${std}: $test_name" # Register the test result, and other relevant metadata. echo ":test-result: $res" > $trs_file echo ":global-test-result: $res" >> $trs_file echo ":recheck: $recheck" >> $trs_file echo ":copy-in-global-log: $gcopy" >> $trs_file # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: dnscrypt-proxy-1.9.4/src/libevent-modified/util-internal.h000644 000765 000024 00000024600 13037731714 023273 0ustar00jstaff000000 000000 /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVENT_UTIL_INTERNAL_H #define _EVENT_UTIL_INTERNAL_H #include "event2/event-config.h" #include /* For EVUTIL_ASSERT */ #include "log-internal.h" #include #include #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #include "event2/util.h" #include "ipv6-internal.h" #ifdef __cplusplus extern "C" { #endif /* If we need magic to say "inline", get it for free internally. */ #ifdef _EVENT_inline #define inline _EVENT_inline #endif #ifdef _EVENT___func__ #define __func__ _EVENT___func__ #endif /* A good no-op to use in macro definitions. */ #define _EVUTIL_NIL_STMT ((void)0) /* A no-op that tricks the compiler into thinking a condition is used while * definitely not making any code for it. Used to compile out asserts while * avoiding "unused variable" warnings. The "!" forces the compiler to * do the sizeof() on an int, in case "condition" is a bitfield value. */ #define _EVUTIL_NIL_CONDITION(condition) do { \ (void)sizeof(!(condition)); \ } while(0) /* Internal use only: macros to match patterns of error codes in a cross-platform way. We need these macros because of two historical reasons: first, nonblocking IO functions are generally written to give an error on the "blocked now, try later" case, so sometimes an error from a read, write, connect, or accept means "no error; just wait for more data," and we need to look at the error code. Second, Windows defines a different set of error codes for sockets. */ #ifndef WIN32 /* True iff e is an error that means a read/write operation can be retried. */ #define EVUTIL_ERR_RW_RETRIABLE(e) \ ((e) == EINTR || (e) == EAGAIN) /* True iff e is an error that means an connect can be retried. */ #define EVUTIL_ERR_CONNECT_RETRIABLE(e) \ ((e) == EINTR || (e) == EINPROGRESS) /* True iff e is an error that means a accept can be retried. */ #define EVUTIL_ERR_ACCEPT_RETRIABLE(e) \ ((e) == EINTR || (e) == EAGAIN || (e) == ECONNABORTED) /* True iff e is an error that means the connection was refused */ #define EVUTIL_ERR_CONNECT_REFUSED(e) \ ((e) == ECONNREFUSED) #else #define EVUTIL_ERR_RW_RETRIABLE(e) \ ((e) == WSAEWOULDBLOCK || \ (e) == WSAEINTR) #define EVUTIL_ERR_CONNECT_RETRIABLE(e) \ ((e) == WSAEWOULDBLOCK || \ (e) == WSAEINTR || \ (e) == WSAEINPROGRESS || \ (e) == WSAEINVAL) #define EVUTIL_ERR_ACCEPT_RETRIABLE(e) \ EVUTIL_ERR_RW_RETRIABLE(e) #define EVUTIL_ERR_CONNECT_REFUSED(e) \ ((e) == WSAECONNREFUSED) #endif #ifdef _EVENT_socklen_t #define socklen_t _EVENT_socklen_t #endif /* Arguments for shutdown() */ #ifdef SHUT_RD #define EVUTIL_SHUT_RD SHUT_RD #else #define EVUTIL_SHUT_RD 0 #endif #ifdef SHUT_WR #define EVUTIL_SHUT_WR SHUT_WR #else #define EVUTIL_SHUT_WR 1 #endif #ifdef SHUT_BOTH #define EVUTIL_SHUT_BOTH SHUT_BOTH #else #define EVUTIL_SHUT_BOTH 2 #endif /* Locale-independent replacements for some ctypes functions. Use these * when you care about ASCII's notion of character types, because you are about * to send those types onto the wire. */ int EVUTIL_ISALPHA(char c); int EVUTIL_ISALNUM(char c); int EVUTIL_ISSPACE(char c); int EVUTIL_ISDIGIT(char c); int EVUTIL_ISXDIGIT(char c); int EVUTIL_ISPRINT(char c); int EVUTIL_ISLOWER(char c); int EVUTIL_ISUPPER(char c); char EVUTIL_TOUPPER(char c); char EVUTIL_TOLOWER(char c); /** Helper macro. If we know that a given pointer points to a field in a structure, return a pointer to the structure itself. Used to implement our half-baked C OO. Example: struct subtype { int x; struct supertype common; int y; }; ... void fn(struct supertype *super) { struct subtype *sub = EVUTIL_UPCAST(super, struct subtype, common); ... } */ #define EVUTIL_UPCAST(ptr, type, field) \ ((type *)(((char*)(ptr)) - evutil_offsetof(type, field))) /* As open(pathname, flags, mode), except that the file is always opened with * the close-on-exec flag set. (And the mode argument is mandatory.) */ int evutil_open_closeonexec(const char *pathname, int flags, unsigned mode); int evutil_read_file(const char *filename, char **content_out, size_t *len_out, int is_binary); int evutil_socket_connect(evutil_socket_t *fd_ptr, struct sockaddr *sa, int socklen); int evutil_socket_finished_connecting(evutil_socket_t fd); int evutil_ersatz_socketpair(int, int , int, evutil_socket_t[]); int evutil_resolve(int family, const char *hostname, struct sockaddr *sa, ev_socklen_t *socklen, int port); const char *evutil_getenv(const char *name); long _evutil_weakrand(void); /* Evaluates to the same boolean value as 'p', and hints to the compiler that * we expect this value to be false. */ #if defined(__GNUC__) && __GNUC__ >= 3 /* gcc 3.0 or later */ #define EVUTIL_UNLIKELY(p) __builtin_expect(!!(p),0) #else #define EVUTIL_UNLIKELY(p) (p) #endif /* Replacement for assert() that calls event_errx on failure. */ #ifdef NDEBUG #define EVUTIL_ASSERT(cond) _EVUTIL_NIL_CONDITION(cond) #define EVUTIL_FAILURE_CHECK(cond) 0 #else #define EVUTIL_ASSERT(cond) \ do { \ if (EVUTIL_UNLIKELY(!(cond))) { \ event_errx(_EVENT_ERR_ABORT, \ "%s:%d: Assertion %s failed in %s", \ __FILE__,__LINE__,#cond,__func__); \ /* In case a user-supplied handler tries to */ \ /* return control to us, log and abort here. */ \ (void)fprintf(stderr, \ "%s:%d: Assertion %s failed in %s", \ __FILE__,__LINE__,#cond,__func__); \ abort(); \ } \ } while (0) #define EVUTIL_FAILURE_CHECK(cond) EVUTIL_UNLIKELY(cond) #endif #ifndef _EVENT_HAVE_STRUCT_SOCKADDR_STORAGE /* Replacement for sockaddr storage that we can use internally on platforms * that lack it. It is not space-efficient, but neither is sockaddr_storage. */ struct sockaddr_storage { union { struct sockaddr ss_sa; struct sockaddr_in ss_sin; struct sockaddr_in6 ss_sin6; char ss_padding[128]; } ss_union; }; #define ss_family ss_union.ss_sa.sa_family #endif /* Internal addrinfo error code. This one is returned from only from * evutil_getaddrinfo_common, when we are sure that we'll have to hit a DNS * server. */ #define EVUTIL_EAI_NEED_RESOLVE -90002 struct evdns_base; struct evdns_getaddrinfo_request; typedef struct evdns_getaddrinfo_request* (*evdns_getaddrinfo_fn)( struct evdns_base *base, const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, void (*cb)(int, struct evutil_addrinfo *, void *), void *arg); void evutil_set_evdns_getaddrinfo_fn(evdns_getaddrinfo_fn fn); struct evutil_addrinfo *evutil_new_addrinfo(struct sockaddr *sa, ev_socklen_t socklen, const struct evutil_addrinfo *hints); struct evutil_addrinfo *evutil_addrinfo_append(struct evutil_addrinfo *first, struct evutil_addrinfo *append); void evutil_adjust_hints_for_addrconfig(struct evutil_addrinfo *hints); int evutil_getaddrinfo_common(const char *nodename, const char *servname, struct evutil_addrinfo *hints, struct evutil_addrinfo **res, int *portnum); int evutil_getaddrinfo_async(struct evdns_base *dns_base, const char *nodename, const char *servname, const struct evutil_addrinfo *hints_in, void (*cb)(int, struct evutil_addrinfo *, void *), void *arg); /** Return true iff sa is a looback address. (That is, it is 127.0.0.1/8, or * ::1). */ int evutil_sockaddr_is_loopback(const struct sockaddr *sa); /** Formats a sockaddr sa into a string buffer of size outlen stored in out. Returns a pointer to out. Always writes something into out, so it's safe to use the output of this function without checking it for NULL. */ const char *evutil_format_sockaddr_port(const struct sockaddr *sa, char *out, size_t outlen); long evutil_tv_to_msec(const struct timeval *tv); int evutil_hex_char_to_int(char c); #ifdef WIN32 HANDLE evutil_load_windows_system_library(const TCHAR *library_name); #endif #ifndef EV_SIZE_FMT #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) #define EV_U64_FMT "%I64u" #define EV_I64_FMT "%I64d" #define EV_I64_ARG(x) ((__int64)(x)) #define EV_U64_ARG(x) ((unsigned __int64)(x)) #else #define EV_U64_FMT "%llu" #define EV_I64_FMT "%lld" #define EV_I64_ARG(x) ((long long)(x)) #define EV_U64_ARG(x) ((unsigned long long)(x)) #endif #endif #ifdef _WIN32 #define EV_SOCK_FMT EV_I64_FMT #define EV_SOCK_ARG(x) EV_I64_ARG((x)) #else #define EV_SOCK_FMT "%d" #define EV_SOCK_ARG(x) (x) #endif #if defined(__STDC__) && defined(__STDC_VERSION__) #if (__STDC_VERSION__ >= 199901L) #define EV_SIZE_FMT "%zu" #define EV_SSIZE_FMT "%zd" #define EV_SIZE_ARG(x) (x) #define EV_SSIZE_ARG(x) (x) #endif #endif #ifndef EV_SIZE_FMT #if (_EVENT_SIZEOF_SIZE_T <= _EVENT_SIZEOF_LONG) #define EV_SIZE_FMT "%lu" #define EV_SSIZE_FMT "%ld" #define EV_SIZE_ARG(x) ((unsigned long)(x)) #define EV_SSIZE_ARG(x) ((long)(x)) #else #define EV_SIZE_FMT EV_U64_FMT #define EV_SSIZE_FMT EV_I64_FMT #define EV_SIZE_ARG(x) EV_U64_ARG(x) #define EV_SSIZE_ARG(x) EV_I64_ARG(x) #endif #endif void evutil_memclear_(void *mem, size_t len); #ifdef __cplusplus } #endif #endif dnscrypt-proxy-1.9.4/src/libevent-modified/whatsnew-2.0.txt000644 000765 000024 00000063347 13037731714 023244 0ustar00jstaff000000 000000 What's New In Libevent 2.0 so far: 1. Meta-issues 1.1. About this document This document describes the key differences between Libevent 1.4 and Libevent 2.0, from a user's point of view. It was most recently updated based on features in git master as of August 2010. NOTE: I am very sure that I missed some thing on this list. Caveat haxxor. 1.2. Better documentation There is now a book-in-progress that explains how to use Libevent and its growing pile of APIs. As of this writing, it covers everything except the http and rpc code. Check out the latest draft at http://www.wangafu.net/~nickm/libevent-book/ . 2. New and Improved Event APIs Many APIs are improved, refactored, or deprecated in Libevent 2.0. COMPATIBILITY: Nearly all existing code that worked with Libevent 1.4 should still work correctly with Libevent 2.0. However, if you are writing new code, or if you want to port old code, we strongly recommend using the new APIs and avoiding deprecated APIs as much as possible. Binaries linked against Libevent 1.4 will need to be recompiled to link against Libevent 2.0. This is nothing new; we have never been good at preserving binary compatibility between releases. We'll try harder in the future, though: see 2.1 below. 2.1. New header layout for improved forward-compatibility Libevent 2.0 has a new header layout to make it easier for programmers to write good, well-supported libevent code. The new headers are divided into three types. There are *regular headers*, like event2/event.h. These headers contain the functions that most programmers will want to use. There are *backward compatibility headers*, like event2/event_compat.h. These headers contain declarations for deprecated functions from older versions of Libevent. Documentation in these headers should suggest what's wrong with the old functions, and what functions you want to start using instead of the old ones. Some of these functions might be removed in a future release. New programs should generally not include these headers. Finally, there are *structure headers*, like event2/event_struct.h. These headers contain definitions of some structures that Libevent has historically exposed. Exposing them caused problems in the past, since programs that were compiled to work with one version of Libevent would often stop working with another version that changed the size or layout of some object. We've moving them into separate headers so that programmers can know that their code is not depending on any unstable aspect of the Libvent ABI. New programs should generally not include these headers unless they really know what they are doing, are willing to rebuild their software whenever they want to link it against a new version of Libevent, and are willing to risk their code breaking if and when data structures change. Functionality that once was located in event.h is now more subdivided. The core event logic is now in event2/event.h. The "evbuffer" functions for low-level buffer manipulation are in event2/buffer.h. The "bufferevent" functions for higher-level buffered IO are in event2/bufferevent.h. COMPATIBILITY: All of the old headers (event.h, evdns.h, evhttp.h, evrpc.h, and evutil.h) will continue to work by including the corresponding new headers. Old code should not be broken by this change. 2.2. New thread-safe, binary-compatible, harder-to-mess-up APIs Some aspects of the historical Libevent API have encouraged non-threadsafe code, or forced code built against one version of Libevent to no longer build with another. The problems with now-deprecated APIs fell into two categories: 1) Dependence on the "current" event_base. In an application with multiple event_bases, Libevent previously had a notion of the "current" event_base. New events were linked to this base, and the caller needed to explicitly reattach them to another base. This was horribly error-prone. Functions like "event_set" that worked with the "current" event_base are now deprecated but still available (see 2.1). There are new functions like "event_assign" that take an explicit event_base argument when setting up a structure. Using these functions will help prevent errors in your applications, and to be more threadsafe. 2) Structure dependence. Applications needed to allocate 'struct event' themselves, since there was no function in Libevent to do it for them. But since the size and contents of struct event can change between libevent versions, this created binary-compatibility nightmares. All structures of this kind are now isolated in _struct.h header (see 2.1), and there are new allocate-and- initialize functions you can use instead of the old initialize-only functions. For example, instead of malloc and event_set, you can use event_new(). (For people who do really want to allocate a struct event on the stack, or put one inside another structure, you can still use event2/event_compat.h.) So in the case where old code would look like this: #include ... struct event *ev = malloc(sizeof(struct event)); /* This call will cause a buffer overrun if you compile with one version of Libevent and link dynamically against another. */ event_set(ev, fd, EV_READ, cb, NULL); /* If you forget this call, your code will break in hard-to-diagnose ways in the presence of multiple event bases. */ event_set_base(ev, base); New code will look more like this: #include ... struct event *ev; ev = event_new(base, fd, EV_READ, cb, NULL); 2.3. Overrideable allocation functions If you want to override the allocation functions used by libevent (for example, to use a specialized allocator, or debug memory issues, or so on), you can replace them by calling event_set_mem_functions. It takes replacements for malloc(), free(), and realloc(). If you're going to use this facility, you need to call it _before_ Libevent does any memory allocation; otherwise, Libevent may allocate some memory with malloc(), and free it with the free() function you provide. You can disable this feature when you are building Libevent by passing the --disable-malloc-replacement argument to configure. 2.4. Configurable event_base creation Older versions of Libevent would always got the fastest backend available, unless you reconfigured their behavior with the environment variables EVENT_NOSELECT, EVENT_NOPOLL, and so forth. This was annoying to programmers who wanted to pick a backend explicitly without messing with the environment. Also, despite our best efforts, not every backend supports every operation we might like. Some features (like edge-triggered events, or working with non-socket file descriptors) only work with some operating systems' fast backends. Previously, programmers who cared about this needed to know which backends supported what. This tended to get quite ungainly. There is now an API to choose backends, either by name or by feature. Here is an example: struct event_config_t *config; struct event_base *base; /* Create a new configuration object. */ config = event_config_new(); /* We don't want to use the "select" method. */ event_config_avoid_method(config, "select"); /* We want a method that can work with non-socket file descriptors */ event_config_require_features(config, EV_FEATURE_FDS); base = event_base_new_with_config(config); if (!base) { /* There is no backend method that does what we want. */ exit(1); } event_config_free(config); Supported features are documented in event2/event.h 2.5. Socket is now an abstract type All APIs that formerly accepted int as a socket type now accept "evutil_socket_t". On Unix, this is just an alias for "int" as before. On Windows, however, it's an alias for SOCKET, which can be wider than int on 64-bit platforms. 2.6. Timeouts and persistent events work together. Previously, it wasn't useful to set a timeout on a persistent event: the timeout would trigger once, and never again. This is not what applications tend to want. Instead, applications tend to want every triggering of the event to re-set the timeout. So now, if you set up an event like this: struct event *ev; struct timeval tv; ev = event_new(base, fd, EV_READ|EV_PERSIST, cb, NULL); tv.tv_sec = 1; tv.tv_usec = 0; event_add(ev, &tv); The callback 'cb' will be invoked whenever fd is ready to read, OR whenever a second has passed since the last invocation of cb. 2.7. Multiple events allowed per fd Older versions of Libevent allowed at most one EV_READ event and at most one EV_WRITE event per socket, per event base. This restriction is no longer present. 2.8. evthread_* functions for thread-safe structures. Libevent structures can now be built with locking support. This code makes it safe to add, remove, and activate events on an event base from a different thread. (Previously, if you wanted to write multithreaded code with Libevent, you could only an event_base or its events in one thread at a time.) If you want threading support and you're using pthreads, you can just call evthread_use_pthreads(). (You'll need to link against the libevent_pthreads library in addition to libevent_core. These functions are not in libevent_core.) If you want threading support and you're using Windows, you can just call evthread_use_windows_threads(). If you are using some locking system besides Windows and pthreads, You can enable this on a per-event-base level by writing functions to implement mutexes, conditions, and thread IDs, and passing them to evthread_set_lock_callbacks and related functions in event2/thread.h. Once locking functions are enabled, every new event_base is created with a lock. You can prevent a single event_base from being built with a lock disabled by using the EVENT_BASE_FLAG_NOLOCK flag in its event_config. If an event_base is created with a lock, it is safe to call event_del, event_add, and event_active on its events from any thread. The event callbacks themselves are still all executed from the thread running the event loop. To make an evbuffer or a bufferevent object threadsafe, call its *_enable_locking() function. The HTTP api is not currently threadsafe. To build Libevent with threading support disabled, pass --disable-thread-support to the configure script. 2.9. Edge-triggered events on some backends. With some backends, it's now possible to add the EV_ET flag to an event in order to request that the event's semantics be edge-triggered. Right now, epoll and kqueue support this. The corresponding event_config feature is EV_FEATURE_ET; see 2.4 for more information. 2.10. Better support for huge numbers of timeouts The heap-based priority queue timer implementation for Libevent 1.4 is good for randomly distributed timeouts, but suboptimal if you have huge numbers of timeouts that all expire in the same amount of time after their creation. The new event_base_init_common_timeout() logic lets you signal that a given timeout interval will be very common, and should use a linked list implementation instead of a priority queue. 2.11. Improved debugging support It's been pretty easy to forget to delete all your events before you re-initialize them, or otherwise put Libevent in an internally inconsistent state. You can tell libevent to catch these and other common errors with the new event_enable_debug_mode() call. Just invoke it before you do any calls to other libevent functions, and it'll catch many common event-level errors in your code. 2.12. Functions to access all event fields So that you don't have to access the struct event fields directly, Libevent now provides accessor functions to retrieve everything from an event that you set during event_new() or event_assign(). 3. Backend-specific and performance improvements. 3.1. Change-minimization on O(1) backends With previous versions of Libevent, if you called event_del() and event_add() repeatedly on a single event between trips to the backend's dispatch function, the backend might wind up making unnecessary calls or passing unnecessary data to the kernel. The new backend logic batches up redundant adds and deletes, and performs no more operations than necessary at the kernel level. This logic is on for the kqueue backend, and available (but off by default) for the epoll backend. To turn it on for the epoll backend, set the EVENT_BASE_FLAG_EPOLL_USE_CHANGELIST flag in the event_base_cofig, or set the EVENT_EPOLL_USE_CHANGELIST environment variable. Doing this with epoll may result in weird bugs if you give any fds closed by dup() or its variants. 3.2. Improved notification on Linux When we need to wake the event loop up from another thread, we use an epollfd to do so, instead of a socketpair. This is supposed to be faster. 3.3. Windows: better support for everything Bufferevents on Windows can use a new mechanism (off-by-default; see below) to send their data via Windows overlapped IO and get their notifications via the IOCP API. This should be much faster than using event-based notification. Other functions throughout the code have been fixed to work more consistently with Windows. Libevent now builds on Windows using either mingw, or using MSVC (with nmake). Libevent works fine with UNICODE defined, or not. Data structures are a little smarter: our lookups from socket to pending event are now done with O(1) hash tables rather than O(lg n) red-black trees. Unfortunately, the main Windows backend is still select()-based: from testing the IOCP backends on the mailing list, it seems that there isn't actually a way to tell for certain whether a socket is writable with IOCP. Libevent 2.1 may add a multithreaded WaitForMultipleEvents-based backend for better performance with many inactive sockets and better integration with Windows events. 4. Improvements to evbuffers Libevent has long had an "evbuffer" implementation to wrap access to an input or output memory buffer. In previous versions, the implementation was very inefficient and lacked some desirable features. We've made many improvements in Libevent 2.0. 4.1. Chunked-memory internal representation Previously, each evbuffer was a huge chunk of memory. When we ran out of space in an evbuffer, we used realloc() to grow the chunk of memory. When data was misaligned, we used memmove to move the data back to the front of the buffer. Needless to say, this is a terrible interface for networked IO. Now, evbuffers are implemented as a linked list of memory chunks, like most Unix kernels use for network IO. (See Linux's skbuf interfaces, or *BSD's mbufs). Data is added at the end of the linked list and removed from the front, so that we don't ever need realloc huge chunks or memmove the whole buffer contents. To avoid excessive calls to read and write, we use the readv/writev interfaces (or WSASend/WSARecv on Windows) to do IO on multiple chunks at once with a single system call. COMPATIBILITY NOTE: The evbuffer struct is no longer exposed in a header. The code here is too volatile to expose an official evbuffer structure, and there was never any means provided to create an evbuffer except via evbuffer_new which heap-allocated the buffer. If you need access to the whole bufer as a linear chunk of memory, the EVBUFFER_DATA() function still works. Watch out, though: it needs to copy the buffer's contents in a linear chunk before you can use it. 4.2. More flexible readline support The old evbuffer_readline() function (which accepted any sequence of CR and LF characters as a newline, and which couldn't handle lines containing NUL characters), is now deprecated. The preferred function is evbuffer_readln(), which supports a variety of line-ending styles, and which can return the number of characters in the line returned. You can also call evbuffer_search_eol() to find the end of a line in an evbuffer without ever extracting the line. 4.3. Support for file-based IO in evbuffers. You can now add chunks of a file into a evbuffer, and Libevent will have your OS use mapped-memory functionality, sendfile, or splice to transfer the data without ever copying it to userspace. On OSs where this is not supported, Libevent just loads the data. There are probably some bugs remaining in this code. On some platforms (like Windows), it just reads the relevant parts of the file into RAM. 4.4. Support for zero-copy ("scatter/gather") writes in evbuffers. You can add a piece of memory to an evbuffer without copying it. Instead, Libevent adds a new element to the evbuffer's linked list of chunks with a pointer to the memory you supplied. You can do this either with a reference-counted chunk (via evbuffer_add_reference), or by asking Libevent for a pointer to its internal vectors (via evbuffer_reserve_space or evbuffer_peek()). 4.5. Multiple callbacks per evbuffer Previously, you could only have one callback active on an evbuffer at a time. In practice, this meant that if one part of Libevent was using an evbuffer callback to notice when an internal evbuffer was reading or writing data, you couldn't have your own callback on that evbuffer. Now, you can now use the evbuffer_add_cb() function to add a callback that does not interfere with any other callbacks. The evbuffer_setcb() function is now deprecated. 4.6. New callback interface Previously, evbuffer callbacks were invoked with the old size of the buffer and the new size of the buffer. This interface could not capture operations that simultaneously filled _and_ drained a buffer, or handle cases where we needed to postpone callbacks until multiple operations were complete. Callbacks that are set with evbuffer_setcb still use the old API. Callbacks added with evbuffer_add_cb() use a new interface that takes a pointer to a struct holding the total number of bytes drained read and the total number of bytes written. See event2/buffer.h for full details. 4.7. Misc new evbuffer features You can use evbuffer_remove() to move a given number of bytes from one buffer to another. The evbuffer_search() function lets you search for repeated instances of a pattern inside an evbuffer. You can use evbuffer_freeze() to temporarily suspend drains from or adds to a given evbuffer. This is useful for code that exposes an evbuffer as part of its public API, but wants users to treat it as a pure source or sink. There's an evbuffer_copyout() that looks at the data at the start of an evbuffer without doing a drain. You can have an evbuffer defer all of its callbacks, so that rather than being invoked immediately when the evbuffer's length changes, they are invoked from within the event_loop. This is useful when you have a complex set of callbacks that can change the length of other evbuffers, and you want to avoid having them recurse and overflow your stack. 5. Bufferevents improvements Libevent has long included a "bufferevents" structure and related functions that were useful for generic buffered IO on a TCP connection. This is what Libevent uses for its HTTP implementation. In addition to the improvements that they get for free from the underlying evbuffer implementation above, there are many new features in Libevent 2.0's evbuffers. 5.1. New OO implementations The "bufferevent" structure is now an abstract base type with multiple implementations. This should not break existing code, which always allocated bufferevents with bufferevent_new(). Current implementations of the bufferevent interface are described below. 5.2. bufferevent_socket_new() replaces bufferevent_new() Since bufferevents that use a socket are not the only kind, bufferevent_new() is now deprecated. Use bufferevent_socket_new() instead. 5.3. Filtered bufferevent IO You can use bufferevent_filter_new() to create a bufferevent that wraps around another bufferevent and transforms data it is sending and receiving. See test/regress_zlib.c for a toy example that uses zlib to compress data before sending it over a bufferevent. 5.3. Linked pairs of bufferevents You can use bufferevent_pair_new() to produce two linked bufferevents. This is like using socketpair, but doesn't require system-calls. 5.4. SSL support for bufferevents with OpenSSL There is now a bufferevent type that supports SSL/TLS using the OpenSSL library. The code for this is build in a separate library, libevent_openssl, so that your programs don't need to link against OpenSSL unless they actually want SSL support. There are two ways to construct one of these bufferevents, both declared in . If you want to wrap an SSL layer around an existing bufferevent, you would call the bufferevent_openssl_filter_new() function. If you want to do SSL on a socket directly, call bufferevent_openssl_socket_new(). 5.5. IOCP support for bufferevents on Windows There is now a bufferevents backend that supports IOCP on Windows. Supposedly, this will eventually make Windows IO much faster for programs using bufferevents. We'll have to see; the code is not currently optimized at all. To try it out, call the event_base_start_iocp() method on an event_base before contructing bufferevents. This is tricky code; there are probably some bugs hiding here. 5.6. Improved connect support for bufferevents. You can now create a bufferevent that is not yet connected to any host, and tell it to connect, either by address or by hostname. The functions to do this are bufferevent_socket_connect and bufferevent_socket_connect_hostname. 5.7. Rate-limiting for bufferevents If you need to limit the number of bytes read/written by a single bufferevent, or by a group of them, you can do this with a new set of bufferevent rate-limiting calls. 6. Other improvements 6.1. DNS improvements 6.1.1. DNS: IPv6 nameservers The evdns code now lets you have nameservers whose addresses are IPv6. 6.1.2. DNS: Better security Libevent 2.0 tries harder to resist DNS answer-sniping attacks than earlier versions of evdns. See comments in the code for full details. Notably, evdns now supports the "0x20 hack" to make it harder to impersonate a DNS server. Additionally, Libevent now uses a strong internal RNG to generate DNS transaction IDs, so you don't need to supply your own. 6.1.3. DNS: Getaddrinfo support There's now an asynchronous getaddrinfo clone, evdns_getaddrinfo(), to make the results of the evdns functions more usable. It doesn't support every feature of a typical platform getaddrinfo() yet, but it is quite close. There is also a blocking evutil_getaddrinfo() declared in event2/util.h, to provide a getaddrinfo() implementation for platforms that don't have one, and smooth over the differences in various platforms implementations of RFC3493. Bufferevents provide bufferevent_connect_hostname(), which combines the name lookup and connect operations. 6.1.4. DNS: No more evdns globals Like an event base, evdns operations are now supposed to use an evdns_base argument. This makes them easier to wrap for other (more OO) languages, and easier to control the lifetime of. The old evdns functions will still, of course, continue working. 6.2. Listener support You can now more easily automate setting up a bound socket to listen for TCP connections. Just use the evconnlistener_*() functions in the event2/listener.h header. The listener code supports IOCP on Windows if available. 6.3. Secure RNG support Network code very frequently needs a secure, hard-to-predict random number generator. Some operating systems provide a good C implementation of one; others do not. Libevent 2.0 now provides a consistent implementation based on the arc4random code originally from OpenBSD. Libevent (and you) can use the evutil_secure_rng_*() functions to access a fairly secure random stream of bytes. 6.4. HTTP The evhttp uriencoding and uridecoding APIs have updated versions that behave more correctly, and can handle strings with internal NULs. The evhttp query parsing and URI parsing logic can now detect errors more usefully. Moreover, we include an actual URI parsing function (evhttp_uri_parse()) to correctly parse URIs, so as to discourage people from rolling their own ad-hoc parsing functions. There are now accessor functions for the useful fields of struct http and friends; it shouldn't be necessary to access them directly any more. Libevent now lets you declare support for all specified HTTP methods, including OPTIONS, PATCH, and so on. The default list is unchanged. Numerous evhttp bugs also got fixed. 7. Infrastructure improvements 7.1. Better unit test framework We now use a unit test framework that Nick wrote called "tinytest". The main benefit from Libevent's point of view is that tests which might mess with global state can all run each in their own subprocess. This way, when there's a bug that makes one unit test crash or mess up global state, it doesn't affect any others. 7.2. Better unit tests Despite all the code we've added, our unit tests are much better than before. Right now, iterating over the different backends on various platforms, I'm getting between 78% and 81% test coverage, compared with less than 45% test coverage in Libevent 1.4. dnscrypt-proxy-1.9.4/src/libevent-modified/WIN32-Code/000755 000765 000024 00000000000 13040635351 021775 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/libevent-modified/win32select.c000644 000765 000024 00000024041 13037731714 022640 0ustar00jstaff000000 000000 /* * Copyright 2007-2012 Niels Provos and Nick Mathewson * Copyright 2000-2007 Niels Provos * Copyright 2003 Michael A. Davis * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include "event2/util.h" #include "event2/event-config.h" #include "util-internal.h" #include "log-internal.h" #include "event2/event.h" #include "event-internal.h" #include "evmap-internal.h" #include "event2/thread.h" #include "evthread-internal.h" #define XFREE(ptr) do { if (ptr) mm_free(ptr); } while (0) extern struct event_list timequeue; extern struct event_list addqueue; struct win_fd_set { u_int fd_count; SOCKET fd_array[1]; }; /* MSDN says this is required to handle SIGFPE */ volatile double SIGFPE_REQ = 0.0f; struct idx_info { int read_pos_plus1; int write_pos_plus1; }; struct win32op { unsigned num_fds_in_fd_sets; int resize_out_sets; struct win_fd_set *readset_in; struct win_fd_set *writeset_in; struct win_fd_set *readset_out; struct win_fd_set *writeset_out; struct win_fd_set *exset_out; unsigned signals_are_broken : 1; }; static void *win32_init(struct event_base *); static int win32_add(struct event_base *, evutil_socket_t, short old, short events, void *_idx); static int win32_del(struct event_base *, evutil_socket_t, short old, short events, void *_idx); static int win32_dispatch(struct event_base *base, struct timeval *); static void win32_dealloc(struct event_base *); struct eventop win32ops = { "win32", win32_init, win32_add, win32_del, win32_dispatch, win32_dealloc, 0, /* doesn't need reinit */ 0, /* No features supported. */ sizeof(struct idx_info), }; #define FD_SET_ALLOC_SIZE(n) ((sizeof(struct win_fd_set) + ((n)-1)*sizeof(SOCKET))) static int grow_fd_sets(struct win32op *op, unsigned new_num_fds) { size_t size; EVUTIL_ASSERT(new_num_fds >= op->readset_in->fd_count && new_num_fds >= op->writeset_in->fd_count); EVUTIL_ASSERT(new_num_fds >= 1); size = FD_SET_ALLOC_SIZE(new_num_fds); if (!(op->readset_in = mm_realloc(op->readset_in, size))) return (-1); if (!(op->writeset_in = mm_realloc(op->writeset_in, size))) return (-1); op->resize_out_sets = 1; op->num_fds_in_fd_sets = new_num_fds; return (0); } static int do_fd_set(struct win32op *op, struct idx_info *ent, evutil_socket_t s, int read) { struct win_fd_set *set = read ? op->readset_in : op->writeset_in; if (read) { if (ent->read_pos_plus1 > 0) return (0); } else { if (ent->write_pos_plus1 > 0) return (0); } if (set->fd_count == op->num_fds_in_fd_sets) { if (grow_fd_sets(op, op->num_fds_in_fd_sets*2)) return (-1); /* set pointer will have changed and needs reiniting! */ set = read ? op->readset_in : op->writeset_in; } set->fd_array[set->fd_count] = s; if (read) ent->read_pos_plus1 = set->fd_count+1; else ent->write_pos_plus1 = set->fd_count+1; return (set->fd_count++); } static int do_fd_clear(struct event_base *base, struct win32op *op, struct idx_info *ent, int read) { int i; struct win_fd_set *set = read ? op->readset_in : op->writeset_in; if (read) { i = ent->read_pos_plus1 - 1; ent->read_pos_plus1 = 0; } else { i = ent->write_pos_plus1 - 1; ent->write_pos_plus1 = 0; } if (i < 0) return (0); if (--set->fd_count != (unsigned)i) { struct idx_info *ent2; SOCKET s2; s2 = set->fd_array[i] = set->fd_array[set->fd_count]; ent2 = evmap_io_get_fdinfo(&base->io, s2); if (!ent2) /* This indicates a bug. */ return (0); if (read) ent2->read_pos_plus1 = i+1; else ent2->write_pos_plus1 = i+1; } return (0); } #define NEVENT 32 void * win32_init(struct event_base *_base) { struct win32op *winop; size_t size; if (!(winop = mm_calloc(1, sizeof(struct win32op)))) return NULL; winop->num_fds_in_fd_sets = NEVENT; size = FD_SET_ALLOC_SIZE(NEVENT); if (!(winop->readset_in = mm_malloc(size))) goto err; if (!(winop->writeset_in = mm_malloc(size))) goto err; if (!(winop->readset_out = mm_malloc(size))) goto err; if (!(winop->writeset_out = mm_malloc(size))) goto err; if (!(winop->exset_out = mm_malloc(size))) goto err; winop->readset_in->fd_count = winop->writeset_in->fd_count = 0; winop->readset_out->fd_count = winop->writeset_out->fd_count = winop->exset_out->fd_count = 0; if (evsig_init(_base) < 0) winop->signals_are_broken = 1; return (winop); err: XFREE(winop->readset_in); XFREE(winop->writeset_in); XFREE(winop->readset_out); XFREE(winop->writeset_out); XFREE(winop->exset_out); XFREE(winop); return (NULL); } int win32_add(struct event_base *base, evutil_socket_t fd, short old, short events, void *_idx) { struct win32op *win32op = base->evbase; struct idx_info *idx = _idx; if ((events & EV_SIGNAL) && win32op->signals_are_broken) return (-1); if (!(events & (EV_READ|EV_WRITE))) return (0); event_debug(("%s: adding event for %d", __func__, (int)fd)); if (events & EV_READ) { if (do_fd_set(win32op, idx, fd, 1)<0) return (-1); } if (events & EV_WRITE) { if (do_fd_set(win32op, idx, fd, 0)<0) return (-1); } return (0); } int win32_del(struct event_base *base, evutil_socket_t fd, short old, short events, void *_idx) { struct win32op *win32op = base->evbase; struct idx_info *idx = _idx; event_debug(("%s: Removing event for "EV_SOCK_FMT, __func__, EV_SOCK_ARG(fd))); if (events & EV_READ) do_fd_clear(base, win32op, idx, 1); if (events & EV_WRITE) do_fd_clear(base, win32op, idx, 0); return 0; } static void fd_set_copy(struct win_fd_set *out, const struct win_fd_set *in) { out->fd_count = in->fd_count; memcpy(out->fd_array, in->fd_array, in->fd_count * (sizeof(SOCKET))); } /* static void dump_fd_set(struct win_fd_set *s) { unsigned int i; printf("[ "); for(i=0;ifd_count;++i) printf("%d ",(int)s->fd_array[i]); printf("]\n"); } */ int win32_dispatch(struct event_base *base, struct timeval *tv) { struct win32op *win32op = base->evbase; int res = 0; unsigned j, i; int fd_count; SOCKET s; if (win32op->resize_out_sets) { size_t size = FD_SET_ALLOC_SIZE(win32op->num_fds_in_fd_sets); if (!(win32op->readset_out = mm_realloc(win32op->readset_out, size))) return (-1); if (!(win32op->exset_out = mm_realloc(win32op->exset_out, size))) return (-1); if (!(win32op->writeset_out = mm_realloc(win32op->writeset_out, size))) return (-1); win32op->resize_out_sets = 0; } fd_set_copy(win32op->readset_out, win32op->readset_in); fd_set_copy(win32op->exset_out, win32op->writeset_in); fd_set_copy(win32op->writeset_out, win32op->writeset_in); fd_count = (win32op->readset_out->fd_count > win32op->writeset_out->fd_count) ? win32op->readset_out->fd_count : win32op->writeset_out->fd_count; if (!fd_count) { long msec = tv ? evutil_tv_to_msec(tv) : LONG_MAX; /* Sleep's DWORD argument is unsigned long */ if (msec < 0) msec = LONG_MAX; /* Windows doesn't like you to call select() with no sockets */ Sleep(msec); return (0); } EVBASE_RELEASE_LOCK(base, th_base_lock); res = select(fd_count, (struct fd_set*)win32op->readset_out, (struct fd_set*)win32op->writeset_out, (struct fd_set*)win32op->exset_out, tv); EVBASE_ACQUIRE_LOCK(base, th_base_lock); event_debug(("%s: select returned %d", __func__, res)); if (res <= 0) { return res; } if (win32op->readset_out->fd_count) { i = rand() % win32op->readset_out->fd_count; for (j=0; jreadset_out->fd_count; ++j) { if (++i >= win32op->readset_out->fd_count) i = 0; s = win32op->readset_out->fd_array[i]; evmap_io_active(base, s, EV_READ); } } if (win32op->exset_out->fd_count) { i = rand() % win32op->exset_out->fd_count; for (j=0; jexset_out->fd_count; ++j) { if (++i >= win32op->exset_out->fd_count) i = 0; s = win32op->exset_out->fd_array[i]; evmap_io_active(base, s, EV_WRITE); } } if (win32op->writeset_out->fd_count) { SOCKET s; i = rand() % win32op->writeset_out->fd_count; for (j=0; jwriteset_out->fd_count; ++j) { if (++i >= win32op->writeset_out->fd_count) i = 0; s = win32op->writeset_out->fd_array[i]; evmap_io_active(base, s, EV_WRITE); } } return (0); } void win32_dealloc(struct event_base *_base) { struct win32op *win32op = _base->evbase; evsig_dealloc(_base); if (win32op->readset_in) mm_free(win32op->readset_in); if (win32op->writeset_in) mm_free(win32op->writeset_in); if (win32op->readset_out) mm_free(win32op->readset_out); if (win32op->writeset_out) mm_free(win32op->writeset_out); if (win32op->exset_out) mm_free(win32op->exset_out); /* XXXXX free the tree. */ memset(win32op, 0, sizeof(*win32op)); mm_free(win32op); } dnscrypt-proxy-1.9.4/src/libevent-modified/WIN32-Code/event2/000755 000765 000024 00000000000 13040635351 023200 5ustar00jstaff000000 000000 dnscrypt-proxy-1.9.4/src/libevent-modified/WIN32-Code/tree.h000644 000765 000024 00000130354 13037731714 023121 0ustar00jstaff000000 000000 /* $OpenBSD: tree.h,v 1.7 2002/10/17 21:51:54 art Exp $ */ /* * Copyright 2002 Niels Provos * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SYS_TREE_H_ #define _SYS_TREE_H_ /* * This file defines data structures for different types of trees: * splay trees and red-black trees. * * A splay tree is a self-organizing data structure. Every operation * on the tree causes a splay to happen. The splay moves the requested * node to the root of the tree and partly rebalances it. * * This has the benefit that request locality causes faster lookups as * the requested nodes move to the top of the tree. On the other hand, * every lookup causes memory writes. * * The Balance Theorem bounds the total access time for m operations * and n inserts on an initially empty tree as O((m + n)lg n). The * amortized cost for a sequence of m accesses to a splay tree is O(lg n); * * A red-black tree is a binary search tree with the node color as an * extra attribute. It fulfills a set of conditions: * - every search path from the root to a leaf consists of the * same number of black nodes, * - each red node (except for the root) has a black parent, * - each leaf node is black. * * Every operation on a red-black tree is bounded as O(lg n). * The maximum height of a red-black tree is 2lg (n+1). */ #define SPLAY_HEAD(name, type) \ struct name { \ struct type *sph_root; /* root of the tree */ \ } #define SPLAY_INITIALIZER(root) \ { NULL } #define SPLAY_INIT(root) do { \ (root)->sph_root = NULL; \ } while (0) #define SPLAY_ENTRY(type) \ struct { \ struct type *spe_left; /* left element */ \ struct type *spe_right; /* right element */ \ } #define SPLAY_LEFT(elm, field) (elm)->field.spe_left #define SPLAY_RIGHT(elm, field) (elm)->field.spe_right #define SPLAY_ROOT(head) (head)->sph_root #define SPLAY_EMPTY(head) (SPLAY_ROOT(head) == NULL) /* SPLAY_ROTATE_{LEFT,RIGHT} expect that tmp hold SPLAY_{RIGHT,LEFT} */ #define SPLAY_ROTATE_RIGHT(head, tmp, field) do { \ SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(tmp, field); \ SPLAY_RIGHT(tmp, field) = (head)->sph_root; \ (head)->sph_root = tmp; \ } while (0) #define SPLAY_ROTATE_LEFT(head, tmp, field) do { \ SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(tmp, field); \ SPLAY_LEFT(tmp, field) = (head)->sph_root; \ (head)->sph_root = tmp; \ } while (0) #define SPLAY_LINKLEFT(head, tmp, field) do { \ SPLAY_LEFT(tmp, field) = (head)->sph_root; \ tmp = (head)->sph_root; \ (head)->sph_root = SPLAY_LEFT((head)->sph_root, field); \ } while (0) #define SPLAY_LINKRIGHT(head, tmp, field) do { \ SPLAY_RIGHT(tmp, field) = (head)->sph_root; \ tmp = (head)->sph_root; \ (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field); \ } while (0) #define SPLAY_ASSEMBLE(head, node, left, right, field) do { \ SPLAY_RIGHT(left, field) = SPLAY_LEFT((head)->sph_root, field); \ SPLAY_LEFT(right, field) = SPLAY_RIGHT((head)->sph_root, field);\ SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(node, field); \ SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(node, field); \ } while (0) /* Generates prototypes and inline functions */ #define SPLAY_PROTOTYPE(name, type, field, cmp) \ void name##_SPLAY(struct name *, struct type *); \ void name##_SPLAY_MINMAX(struct name *, int); \ struct type *name##_SPLAY_INSERT(struct name *, struct type *); \ struct type *name##_SPLAY_REMOVE(struct name *, struct type *); \ \ /* Finds the node with the same key as elm */ \ static __inline struct type * \ name##_SPLAY_FIND(struct name *head, struct type *elm) \ { \ if (SPLAY_EMPTY(head)) \ return(NULL); \ name##_SPLAY(head, elm); \ if ((cmp)(elm, (head)->sph_root) == 0) \ return (head->sph_root); \ return (NULL); \ } \ \ static __inline struct type * \ name##_SPLAY_NEXT(struct name *head, struct type *elm) \ { \ name##_SPLAY(head, elm); \ if (SPLAY_RIGHT(elm, field) != NULL) { \ elm = SPLAY_RIGHT(elm, field); \ while (SPLAY_LEFT(elm, field) != NULL) { \ elm = SPLAY_LEFT(elm, field); \ } \ } else \ elm = NULL; \ return (elm); \ } \ \ static __inline struct type * \ name##_SPLAY_MIN_MAX(struct name *head, int val) \ { \ name##_SPLAY_MINMAX(head, val); \ return (SPLAY_ROOT(head)); \ } /* Main splay operation. * Moves node close to the key of elm to top */ #define SPLAY_GENERATE(name, type, field, cmp) \ struct type * \ name##_SPLAY_INSERT(struct name *head, struct type *elm) \ { \ if (SPLAY_EMPTY(head)) { \ SPLAY_LEFT(elm, field) = SPLAY_RIGHT(elm, field) = NULL; \ } else { \ int __comp; \ name##_SPLAY(head, elm); \ __comp = (cmp)(elm, (head)->sph_root); \ if(__comp < 0) { \ SPLAY_LEFT(elm, field) = SPLAY_LEFT((head)->sph_root, field);\ SPLAY_RIGHT(elm, field) = (head)->sph_root; \ SPLAY_LEFT((head)->sph_root, field) = NULL; \ } else if (__comp > 0) { \ SPLAY_RIGHT(elm, field) = SPLAY_RIGHT((head)->sph_root, field);\ SPLAY_LEFT(elm, field) = (head)->sph_root; \ SPLAY_RIGHT((head)->sph_root, field) = NULL; \ } else \ return ((head)->sph_root); \ } \ (head)->sph_root = (elm); \ return (NULL); \ } \ \ struct type * \ name##_SPLAY_REMOVE(struct name *head, struct type *elm) \ { \ struct type *__tmp; \ if (SPLAY_EMPTY(head)) \ return (NULL); \ name##_SPLAY(head, elm); \ if ((cmp)(elm, (head)->sph_root) == 0) { \ if (SPLAY_LEFT((head)->sph_root, field) == NULL) { \ (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);\ } else { \ __tmp = SPLAY_RIGHT((head)->sph_root, field); \ (head)->sph_root = SPLAY_LEFT((head)->sph_root, field);\ name##_SPLAY(head, elm); \ SPLAY_RIGHT((head)->sph_root, field) = __tmp; \ } \ return (elm); \ } \ return (NULL); \ } \ \ void \ name##_SPLAY(struct name *head, struct type *elm) \ { \ struct type __node, *__left, *__right, *__tmp; \ int __comp; \ \ SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\ __left = __right = &__node; \ \ while ((__comp = (cmp)(elm, (head)->sph_root))) { \ if (__comp < 0) { \ __tmp = SPLAY_LEFT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if ((cmp)(elm, __tmp) < 0){ \ SPLAY_ROTATE_RIGHT(head, __tmp, field); \ if (SPLAY_LEFT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKLEFT(head, __right, field); \ } else if (__comp > 0) { \ __tmp = SPLAY_RIGHT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if ((cmp)(elm, __tmp) > 0){ \ SPLAY_ROTATE_LEFT(head, __tmp, field); \ if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKRIGHT(head, __left, field); \ } \ } \ SPLAY_ASSEMBLE(head, &__node, __left, __right, field); \ } \ \ /* Splay with either the minimum or the maximum element \ * Used to find minimum or maximum element in tree. \ */ \ void name##_SPLAY_MINMAX(struct name *head, int __comp) \ { \ struct type __node, *__left, *__right, *__tmp; \ \ SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\ __left = __right = &__node; \ \ while (1) { \ if (__comp < 0) { \ __tmp = SPLAY_LEFT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if (__comp < 0){ \ SPLAY_ROTATE_RIGHT(head, __tmp, field); \ if (SPLAY_LEFT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKLEFT(head, __right, field); \ } else if (__comp > 0) { \ __tmp = SPLAY_RIGHT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if (__comp > 0) { \ SPLAY_ROTATE_LEFT(head, __tmp, field); \ if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKRIGHT(head, __left, field); \ } \ } \ SPLAY_ASSEMBLE(head, &__node, __left, __right, field); \ } #define SPLAY_NEGINF -1 #define SPLAY_INF 1 #define SPLAY_INSERT(name, x, y) name##_SPLAY_INSERT(x, y) #define SPLAY_REMOVE(name, x, y) name##_SPLAY_REMOVE(x, y) #define SPLAY_FIND(name, x, y) name##_SPLAY_FIND(x, y) #define SPLAY_NEXT(name, x, y) name##_SPLAY_NEXT(x, y) #define SPLAY_MIN(name, x) (SPLAY_EMPTY(x) ? NULL \ : name##_SPLAY_MIN_MAX(x, SPLAY_NEGINF)) #define SPLAY_MAX(name, x) (SPLAY_EMPTY(x) ? NULL \ : name##_SPLAY_MIN_MAX(x, SPLAY_INF)) #define SPLAY_FOREACH(x, name, head) \ for ((x) = SPLAY_MIN(name, head); \ (x) != NULL; \ (x) = SPLAY_NEXT(name, head, x)) /* Macros that define a red-back tree */ #define RB_HEAD(name, type) \ struct name { \ struct type *rbh_root; /* root of the tree */ \ } #define RB_INITIALIZER(root) \ { NULL } #define RB_INIT(root) do { \ (root)->rbh_root = NULL; \ } while (0) #define RB_BLACK 0 #define RB_RED 1 #define RB_ENTRY(type) \ struct { \ struct type *rbe_left; /* left element */ \ struct type *rbe_right; /* right element */ \ struct type *rbe_parent; /* parent element */ \ int rbe_color; /* node color */ \ } #define RB_LEFT(elm, field) (elm)->field.rbe_left #define RB_RIGHT(elm, field) (elm)->field.rbe_right #define RB_PARENT(elm, field) (elm)->field.rbe_parent #define RB_COLOR(elm, field) (elm)->field.rbe_color #define RB_ROOT(head) (head)->rbh_root #define RB_EMPTY(head) (RB_ROOT(head) == NULL) #define RB_SET(elm, parent, field) do { \ RB_PARENT(elm, field) = parent; \ RB_LEFT(elm, field) = RB_RIGHT(elm, field) = NULL; \ RB_COLOR(elm, field) = RB_RED; \ } while (0) #define RB_SET_BLACKRED(black, red, field) do { \ RB_COLOR(black, field) = RB_BLACK; \ RB_COLOR(red, field) = RB_RED; \ } while (0) #ifndef RB_AUGMENT #define RB_AUGMENT(x) #endif #define RB_ROTATE_LEFT(head, elm, tmp, field) do { \ (tmp) = RB_RIGHT(elm, field); \ if ((RB_RIGHT(elm, field) = RB_LEFT(tmp, field))) { \ RB_PARENT(RB_LEFT(tmp, field), field) = (elm); \ } \ RB_AUGMENT(elm); \ if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field))) { \ if ((elm) == RB_LEFT(RB_PARENT(elm, field), field)) \ RB_LEFT(RB_PARENT(elm, field), field) = (tmp); \ else \ RB_RIGHT(RB_PARENT(elm, field), field) = (tmp); \ } else \ (head)->rbh_root = (tmp); \ RB_LEFT(tmp, field) = (elm); \ RB_PARENT(elm, field) = (tmp); \ RB_AUGMENT(tmp); \ if ((RB_PARENT(tmp, field))) \ RB_AUGMENT(RB_PARENT(tmp, field)); \ } while (0) #define RB_ROTATE_RIGHT(head, elm, tmp, field) do { \ (tmp) = RB_LEFT(elm, field); \ if ((RB_LEFT(elm, field) = RB_RIGHT(tmp, field))) { \ RB_PARENT(RB_RIGHT(tmp, field), field) = (elm); \ } \ RB_AUGMENT(elm); \ if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field))) { \ if ((elm) == RB_LEFT(RB_PARENT(elm, field), field)) \ RB_LEFT(RB_PARENT(elm, field), field) = (tmp); \ else \ RB_RIGHT(RB_PARENT(elm, field), field) = (tmp); \ } else \ (head)->rbh_root = (tmp); \ RB_RIGHT(tmp, field) = (elm); \ RB_PARENT(elm, field) = (tmp); \ RB_AUGMENT(tmp); \ if ((RB_PARENT(tmp, field))) \ RB_AUGMENT(RB_PARENT(tmp, field)); \ } while (0) /* Generates prototypes and inline functions */ #define RB_PROTOTYPE(name, type, field, cmp) \ void name##_RB_INSERT_COLOR(struct name *, struct type *); \ void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\ struct type *name##_RB_REMOVE(struct name *, struct type *); \ struct type *name##_RB_INSERT(struct name *, struct type *); \ struct type *name##_RB_FIND(struct name *, struct type *); \ struct type *name##_RB_NEXT(struct type *); \ struct type *name##_RB_MINMAX(struct name *, int); \ \ /* Main rb operation. * Moves node close to the key of elm to top */ #define RB_GENERATE(name, type, field, cmp) \ void \ name##_RB_INSERT_COLOR(struct name *head, struct type *elm) \ { \ struct type *parent, *gparent, *tmp; \ while ((parent = RB_PARENT(elm, field)) && \ RB_COLOR(parent, field) == RB_RED) { \ gparent = RB_PARENT(parent, field); \ if (parent == RB_LEFT(gparent, field)) { \ tmp = RB_RIGHT(gparent, field); \ if (tmp && RB_COLOR(tmp, field) == RB_RED) { \ RB_COLOR(tmp, field) = RB_BLACK; \ RB_SET_BLACKRED(parent, gparent, field);\ elm = gparent; \ continue; \ } \ if (RB_RIGHT(parent, field) == elm) { \ RB_ROTATE_LEFT(head, parent, tmp, field);\ tmp = parent; \ parent = elm; \ elm = tmp; \ } \ RB_SET_BLACKRED(parent, gparent, field); \ RB_ROTATE_RIGHT(head, gparent, tmp, field); \ } else { \ tmp = RB_LEFT(gparent, field); \ if (tmp && RB_COLOR(tmp, field) == RB_RED) { \ RB_COLOR(tmp, field) = RB_BLACK; \ RB_SET_BLACKRED(parent, gparent, field);\ elm = gparent; \ continue; \ } \ if (RB_LEFT(parent, field) == elm) { \ RB_ROTATE_RIGHT(head, parent, tmp, field);\ tmp = parent; \ parent = elm; \ elm = tmp; \ } \ RB_SET_BLACKRED(parent, gparent, field); \ RB_ROTATE_LEFT(head, gparent, tmp, field); \ } \ } \ RB_COLOR(head->rbh_root, field) = RB_BLACK; \ } \ \ void \ name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm) \ { \ struct type *tmp; \ while ((elm == NULL || RB_COLOR(elm, field) == RB_BLACK) && \ elm != RB_ROOT(head)) { \ if (RB_LEFT(parent, field) == elm) { \ tmp = RB_RIGHT(parent, field); \ if (RB_COLOR(tmp, field) == RB_RED) { \ RB_SET_BLACKRED(tmp, parent, field); \ RB_ROTATE_LEFT(head, parent, tmp, field);\ tmp = RB_RIGHT(parent, field); \ } \ if ((RB_LEFT(tmp, field) == NULL || \ RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\ (RB_RIGHT(tmp, field) == NULL || \ RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\ RB_COLOR(tmp, field) = RB_RED; \ elm = parent; \ parent = RB_PARENT(elm, field); \ } else { \ if (RB_RIGHT(tmp, field) == NULL || \ RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK) {\ struct type *oleft; \ if ((oleft = RB_LEFT(tmp, field)))\ RB_COLOR(oleft, field) = RB_BLACK;\ RB_COLOR(tmp, field) = RB_RED; \ RB_ROTATE_RIGHT(head, tmp, oleft, field);\ tmp = RB_RIGHT(parent, field); \ } \ RB_COLOR(tmp, field) = RB_COLOR(parent, field);\ RB_COLOR(parent, field) = RB_BLACK; \ if (RB_RIGHT(tmp, field)) \ RB_COLOR(RB_RIGHT(tmp, field), field) = RB_BLACK;\ RB_ROTATE_LEFT(head, parent, tmp, field);\ elm = RB_ROOT(head); \ break; \ } \ } else { \ tmp = RB_LEFT(parent, field); \ if (RB_COLOR(tmp, field) == RB_RED) { \ RB_SET_BLACKRED(tmp, parent, field); \ RB_ROTATE_RIGHT(head, parent, tmp, field);\ tmp = RB_LEFT(parent, field); \ } \ if ((RB_LEFT(tmp, field) == NULL || \ RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\ (RB_RIGHT(tmp, field) == NULL || \ RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\ RB_COLOR(tmp, field) = RB_RED; \ elm = parent; \ parent = RB_PARENT(elm, field); \ } else { \ if (RB_LEFT(tmp, field) == NULL || \ RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) {\ struct type *oright; \ if ((oright = RB_RIGHT(tmp, field)))\ RB_COLOR(oright, field) = RB_BLACK;\ RB_COLOR(tmp, field) = RB_RED; \ RB_ROTATE_LEFT(head, tmp, oright, field);\ tmp = RB_LEFT(parent, field); \ } \ RB_COLOR(tmp, field) = RB_COLOR(parent, field);\ RB_COLOR(parent, field) = RB_BLACK; \ if (RB_LEFT(tmp, field)) \ RB_COLOR(RB_LEFT(tmp, field), field) = RB_BLACK;\ RB_ROTATE_RIGHT(head, parent, tmp, field);\ elm = RB_ROOT(head); \ break; \ } \ } \ } \ if (elm) \ RB_COLOR(elm, field) = RB_BLACK; \ } \ \ struct type * \ name##_RB_REMOVE(struct name *head, struct type *elm) \ { \ struct type *child, *parent, *old = elm; \ int color; \ if (RB_LEFT(elm, field) == NULL) \ child = RB_RIGHT(elm, field); \ else if (RB_RIGHT(elm, field) == NULL) \ child = RB_LEFT(elm, field); \ else { \ struct type *left; \ elm = RB_RIGHT(elm, field); \ while ((left = RB_LEFT(elm, field))) \ elm = left; \ child = RB_RIGHT(elm, field); \ parent = RB_PARENT(elm, field); \ color = RB_COLOR(elm, field); \ if (child) \ RB_PARENT(child, field) = parent; \ if (parent) { \ if (RB_LEFT(parent, field) == elm) \ RB_LEFT(parent, field) = child; \ else \ RB_RIGHT(parent, field) = child; \ RB_AUGMENT(parent); \ } else \ RB_ROOT(head) = child; \ if (RB_PARENT(elm, field) == old) \ parent = elm; \ (elm)->field = (old)->field; \ if (RB_PARENT(old, field)) { \ if (RB_LEFT(RB_PARENT(old, field), field) == old)\ RB_LEFT(RB_PARENT(old, field), field) = elm;\ else \ RB_RIGHT(RB_PARENT(old, field), field) = elm;\ RB_AUGMENT(RB_PARENT(old, field)); \ } else \ RB_ROOT(head) = elm; \ RB_PARENT(RB_LEFT(old, field), field) = elm; \ if (RB_RIGHT(old, field)) \ RB_PARENT(RB_RIGHT(old, field), field) = elm; \ if (parent) { \ left = parent; \ do { \ RB_AUGMENT(left); \ } while ((left = RB_PARENT(left, field))); \ } \ goto color; \ } \ parent = RB_PARENT(elm, field); \ color = RB_COLOR(elm, field); \ if (child) \ RB_PARENT(child, field) = parent; \ if (parent) { \ if (RB_LEFT(parent, field) == elm) \ RB_LEFT(parent, field) = child; \ else \ RB_RIGHT(parent, field) = child; \ RB_AUGMENT(parent); \ } else \ RB_ROOT(head) = child; \ color: \ if (color == RB_BLACK) \ name##_RB_REMOVE_COLOR(head, parent, child); \ return (old); \ } \ \ /* Inserts a node into the RB tree */ \ struct type * \ name##_RB_INSERT(struct name *head, struct type *elm) \ { \ struct type *tmp; \ struct type *parent = NULL; \ int comp = 0; \ tmp = RB_ROOT(head); \ while (tmp) { \ parent = tmp; \ comp = (cmp)(elm, parent); \ if (comp < 0) \ tmp = RB_LEFT(tmp, field); \ else if (comp > 0) \ tmp = RB_RIGHT(tmp, field); \ else \ return (tmp); \ } \ RB_SET(elm, parent, field); \ if (parent != NULL) { \ if (comp < 0) \ RB_LEFT(parent, field) = elm; \ else \ RB_RIGHT(parent, field) = elm; \ RB_AUGMENT(parent); \ } else \ RB_ROOT(head) = elm; \ name##_RB_INSERT_COLOR(head, elm); \ return (NULL); \ } \ \ /* Finds the node with the same key as elm */ \ struct type * \ name##_RB_FIND(struct name *head, struct type *elm) \ { \ struct type *tmp = RB_ROOT(head); \ int comp; \ while (tmp) { \ comp = cmp(elm, tmp); \ if (comp < 0) \ tmp = RB_LEFT(tmp, field); \ else if (comp > 0) \ tmp = RB_RIGHT(tmp, field); \ else \ return (tmp); \ } \ return (NULL); \ } \ \ struct type * \ name##_RB_NEXT(struct type *elm) \ { \ if (RB_RIGHT(elm, field)) { \ elm = RB_RIGHT(elm, field); \ while (RB_LEFT(elm, field)) \ elm = RB_LEFT(elm, field); \ } else { \ if (RB_PARENT(elm, field) && \ (elm == RB_LEFT(RB_PARENT(elm, field), field))) \ elm = RB_PARENT(elm, field); \ else { \ while (RB_PARENT(elm, field) && \ (elm == RB_RIGHT(RB_PARENT(elm, field), field)))\ elm = RB_PARENT(elm, field); \ elm = RB_PARENT(elm, field); \ } \ } \ return (elm); \ } \ \ struct type * \ name##_RB_MINMAX(struct name *head, int val) \ { \ struct type *tmp = RB_ROOT(head); \ struct type *parent = NULL; \ while (tmp) { \ parent = tmp; \ if (val < 0) \ tmp = RB_LEFT(tmp, field); \ else \ tmp = RB_RIGHT(tmp, field); \ } \ return (parent); \ } #define RB_NEGINF -1 #define RB_INF 1 #define RB_INSERT(name, x, y) name##_RB_INSERT(x, y) #define RB_REMOVE(name, x, y) name##_RB_REMOVE(x, y) #define RB_FIND(name, x, y) name##_RB_FIND(x, y) #define RB_NEXT(name, x, y) name##_RB_NEXT(y) #define RB_MIN(name, x) name##_RB_MINMAX(x, RB_NEGINF) #define RB_MAX(name, x) name##_RB_MINMAX(x, RB_INF) #define RB_FOREACH(x, name, head) \ for ((x) = RB_MIN(name, head); \ (x) != NULL; \ (x) = name##_RB_NEXT(x)) #endif /* _SYS_TREE_H_ */ /* $OpenBSD: tree.h,v 1.7 2002/10/17 21:51:54 art Exp $ */ /* * Copyright 2002 Niels Provos * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SYS_TREE_H_ #define _SYS_TREE_H_ /* * This file defines data structures for different types of trees: * splay trees and red-black trees. * * A splay tree is a self-organizing data structure. Every operation * on the tree causes a splay to happen. The splay moves the requested * node to the root of the tree and partly rebalances it. * * This has the benefit that request locality causes faster lookups as * the requested nodes move to the top of the tree. On the other hand, * every lookup causes memory writes. * * The Balance Theorem bounds the total access time for m operations * and n inserts on an initially empty tree as O((m + n)lg n). The * amortized cost for a sequence of m accesses to a splay tree is O(lg n); * * A red-black tree is a binary search tree with the node color as an * extra attribute. It fulfills a set of conditions: * - every search path from the root to a leaf consists of the * same number of black nodes, * - each red node (except for the root) has a black parent, * - each leaf node is black. * * Every operation on a red-black tree is bounded as O(lg n). * The maximum height of a red-black tree is 2lg (n+1). */ #define SPLAY_HEAD(name, type) \ struct name { \ struct type *sph_root; /* root of the tree */ \ } #define SPLAY_INITIALIZER(root) \ { NULL } #define SPLAY_INIT(root) do { \ (root)->sph_root = NULL; \ } while (0) #define SPLAY_ENTRY(type) \ struct { \ struct type *spe_left; /* left element */ \ struct type *spe_right; /* right element */ \ } #define SPLAY_LEFT(elm, field) (elm)->field.spe_left #define SPLAY_RIGHT(elm, field) (elm)->field.spe_right #define SPLAY_ROOT(head) (head)->sph_root #define SPLAY_EMPTY(head) (SPLAY_ROOT(head) == NULL) /* SPLAY_ROTATE_{LEFT,RIGHT} expect that tmp hold SPLAY_{RIGHT,LEFT} */ #define SPLAY_ROTATE_RIGHT(head, tmp, field) do { \ SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(tmp, field); \ SPLAY_RIGHT(tmp, field) = (head)->sph_root; \ (head)->sph_root = tmp; \ } while (0) #define SPLAY_ROTATE_LEFT(head, tmp, field) do { \ SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(tmp, field); \ SPLAY_LEFT(tmp, field) = (head)->sph_root; \ (head)->sph_root = tmp; \ } while (0) #define SPLAY_LINKLEFT(head, tmp, field) do { \ SPLAY_LEFT(tmp, field) = (head)->sph_root; \ tmp = (head)->sph_root; \ (head)->sph_root = SPLAY_LEFT((head)->sph_root, field); \ } while (0) #define SPLAY_LINKRIGHT(head, tmp, field) do { \ SPLAY_RIGHT(tmp, field) = (head)->sph_root; \ tmp = (head)->sph_root; \ (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field); \ } while (0) #define SPLAY_ASSEMBLE(head, node, left, right, field) do { \ SPLAY_RIGHT(left, field) = SPLAY_LEFT((head)->sph_root, field); \ SPLAY_LEFT(right, field) = SPLAY_RIGHT((head)->sph_root, field);\ SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(node, field); \ SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(node, field); \ } while (0) /* Generates prototypes and inline functions */ #define SPLAY_PROTOTYPE(name, type, field, cmp) \ void name##_SPLAY(struct name *, struct type *); \ void name##_SPLAY_MINMAX(struct name *, int); \ struct type *name##_SPLAY_INSERT(struct name *, struct type *); \ struct type *name##_SPLAY_REMOVE(struct name *, struct type *); \ \ /* Finds the node with the same key as elm */ \ static __inline struct type * \ name##_SPLAY_FIND(struct name *head, struct type *elm) \ { \ if (SPLAY_EMPTY(head)) \ return(NULL); \ name##_SPLAY(head, elm); \ if ((cmp)(elm, (head)->sph_root) == 0) \ return (head->sph_root); \ return (NULL); \ } \ \ static __inline struct type * \ name##_SPLAY_NEXT(struct name *head, struct type *elm) \ { \ name##_SPLAY(head, elm); \ if (SPLAY_RIGHT(elm, field) != NULL) { \ elm = SPLAY_RIGHT(elm, field); \ while (SPLAY_LEFT(elm, field) != NULL) { \ elm = SPLAY_LEFT(elm, field); \ } \ } else \ elm = NULL; \ return (elm); \ } \ \ static __inline struct type * \ name##_SPLAY_MIN_MAX(struct name *head, int val) \ { \ name##_SPLAY_MINMAX(head, val); \ return (SPLAY_ROOT(head)); \ } /* Main splay operation. * Moves node close to the key of elm to top */ #define SPLAY_GENERATE(name, type, field, cmp) \ struct type * \ name##_SPLAY_INSERT(struct name *head, struct type *elm) \ { \ if (SPLAY_EMPTY(head)) { \ SPLAY_LEFT(elm, field) = SPLAY_RIGHT(elm, field) = NULL; \ } else { \ int __comp; \ name##_SPLAY(head, elm); \ __comp = (cmp)(elm, (head)->sph_root); \ if(__comp < 0) { \ SPLAY_LEFT(elm, field) = SPLAY_LEFT((head)->sph_root, field);\ SPLAY_RIGHT(elm, field) = (head)->sph_root; \ SPLAY_LEFT((head)->sph_root, field) = NULL; \ } else if (__comp > 0) { \ SPLAY_RIGHT(elm, field) = SPLAY_RIGHT((head)->sph_root, field);\ SPLAY_LEFT(elm, field) = (head)->sph_root; \ SPLAY_RIGHT((head)->sph_root, field) = NULL; \ } else \ return ((head)->sph_root); \ } \ (head)->sph_root = (elm); \ return (NULL); \ } \ \ struct type * \ name##_SPLAY_REMOVE(struct name *head, struct type *elm) \ { \ struct type *__tmp; \ if (SPLAY_EMPTY(head)) \ return (NULL); \ name##_SPLAY(head, elm); \ if ((cmp)(elm, (head)->sph_root) == 0) { \ if (SPLAY_LEFT((head)->sph_root, field) == NULL) { \ (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);\ } else { \ __tmp = SPLAY_RIGHT((head)->sph_root, field); \ (head)->sph_root = SPLAY_LEFT((head)->sph_root, field);\ name##_SPLAY(head, elm); \ SPLAY_RIGHT((head)->sph_root, field) = __tmp; \ } \ return (elm); \ } \ return (NULL); \ } \ \ void \ name##_SPLAY(struct name *head, struct type *elm) \ { \ struct type __node, *__left, *__right, *__tmp; \ int __comp; \ \ SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\ __left = __right = &__node; \ \ while ((__comp = (cmp)(elm, (head)->sph_root))) { \ if (__comp < 0) { \ __tmp = SPLAY_LEFT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if ((cmp)(elm, __tmp) < 0){ \ SPLAY_ROTATE_RIGHT(head, __tmp, field); \ if (SPLAY_LEFT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKLEFT(head, __right, field); \ } else if (__comp > 0) { \ __tmp = SPLAY_RIGHT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if ((cmp)(elm, __tmp) > 0){ \ SPLAY_ROTATE_LEFT(head, __tmp, field); \ if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKRIGHT(head, __left, field); \ } \ } \ SPLAY_ASSEMBLE(head, &__node, __left, __right, field); \ } \ \ /* Splay with either the minimum or the maximum element \ * Used to find minimum or maximum element in tree. \ */ \ void name##_SPLAY_MINMAX(struct name *head, int __comp) \ { \ struct type __node, *__left, *__right, *__tmp; \ \ SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\ __left = __right = &__node; \ \ while (1) { \ if (__comp < 0) { \ __tmp = SPLAY_LEFT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if (__comp < 0){ \ SPLAY_ROTATE_RIGHT(head, __tmp, field); \ if (SPLAY_LEFT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKLEFT(head, __right, field); \ } else if (__comp > 0) { \ __tmp = SPLAY_RIGHT((head)->sph_root, field); \ if (__tmp == NULL) \ break; \ if (__comp > 0) { \ SPLAY_ROTATE_LEFT(head, __tmp, field); \ if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\ break; \ } \ SPLAY_LINKRIGHT(head, __left, field); \ } \ } \ SPLAY_ASSEMBLE(head, &__node, __left, __right, field); \ } #define SPLAY_NEGINF -1 #define SPLAY_INF 1 #define SPLAY_INSERT(name, x, y) name##_SPLAY_INSERT(x, y) #define SPLAY_REMOVE(name, x, y) name##_SPLAY_REMOVE(x, y) #define SPLAY_FIND(name, x, y) name##_SPLAY_FIND(x, y) #define SPLAY_NEXT(name, x, y) name##_SPLAY_NEXT(x, y) #define SPLAY_MIN(name, x) (SPLAY_EMPTY(x) ? NULL \ : name##_SPLAY_MIN_MAX(x, SPLAY_NEGINF)) #define SPLAY_MAX(name, x) (SPLAY_EMPTY(x) ? NULL \ : name##_SPLAY_MIN_MAX(x, SPLAY_INF)) #define SPLAY_FOREACH(x, name, head) \ for ((x) = SPLAY_MIN(name, head); \ (x) != NULL; \ (x) = SPLAY_NEXT(name, head, x)) /* Macros that define a red-back tree */ #define RB_HEAD(name, type) \ struct name { \ struct type *rbh_root; /* root of the tree */ \ } #define RB_INITIALIZER(root) \ { NULL } #define RB_INIT(root) do { \ (root)->rbh_root = NULL; \ } while (0) #define RB_BLACK 0 #define RB_RED 1 #define RB_ENTRY(type) \ struct { \ struct type *rbe_left; /* left element */ \ struct type *rbe_right; /* right element */ \ struct type *rbe_parent; /* parent element */ \ int rbe_color; /* node color */ \ } #define RB_LEFT(elm, field) (elm)->field.rbe_left #define RB_RIGHT(elm, field) (elm)->field.rbe_right #define RB_PARENT(elm, field) (elm)->field.rbe_parent #define RB_COLOR(elm, field) (elm)->field.rbe_color #define RB_ROOT(head) (head)->rbh_root #define RB_EMPTY(head) (RB_ROOT(head) == NULL) #define RB_SET(elm, parent, field) do { \ RB_PARENT(elm, field) = parent; \ RB_LEFT(elm, field) = RB_RIGHT(elm, field) = NULL; \ RB_COLOR(elm, field) = RB_RED; \ } while (0) #define RB_SET_BLACKRED(black, red, field) do { \ RB_COLOR(black, field) = RB_BLACK; \ RB_COLOR(red, field) = RB_RED; \ } while (0) #ifndef RB_AUGMENT #define RB_AUGMENT(x) #endif #define RB_ROTATE_LEFT(head, elm, tmp, field) do { \ (tmp) = RB_RIGHT(elm, field); \ if ((RB_RIGHT(elm, field) = RB_LEFT(tmp, field))) { \ RB_PARENT(RB_LEFT(tmp, field), field) = (elm); \ } \ RB_AUGMENT(elm); \ if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field))) { \ if ((elm) == RB_LEFT(RB_PARENT(elm, field), field)) \ RB_LEFT(RB_PARENT(elm, field), field) = (tmp); \ else \ RB_RIGHT(RB_PARENT(elm, field), field) = (tmp); \ } else \ (head)->rbh_root = (tmp); \ RB_LEFT(tmp, field) = (elm); \ RB_PARENT(elm, field) = (tmp); \ RB_AUGMENT(tmp); \ if ((RB_PARENT(tmp, field))) \ RB_AUGMENT(RB_PARENT(tmp, field)); \ } while (0) #define RB_ROTATE_RIGHT(head, elm, tmp, field) do { \ (tmp) = RB_LEFT(elm, field); \ if ((RB_LEFT(elm, field) = RB_RIGHT(tmp, field))) { \ RB_PARENT(RB_RIGHT(tmp, field), field) = (elm); \ } \ RB_AUGMENT(elm); \ if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field))) { \ if ((elm) == RB_LEFT(RB_PARENT(elm, field), field)) \ RB_LEFT(RB_PARENT(elm, field), field) = (tmp); \ else \ RB_RIGHT(RB_PARENT(elm, field), field) = (tmp); \ } else \ (head)->rbh_root = (tmp); \ RB_RIGHT(tmp, field) = (elm); \ RB_PARENT(elm, field) = (tmp); \ RB_AUGMENT(tmp); \ if ((RB_PARENT(tmp, field))) \ RB_AUGMENT(RB_PARENT(tmp, field)); \ } while (0) /* Generates prototypes and inline functions */ #define RB_PROTOTYPE(name, type, field, cmp) \ void name##_RB_INSERT_COLOR(struct name *, struct type *); \ void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\ struct type *name##_RB_REMOVE(struct name *, struct type *); \ struct type *name##_RB_INSERT(struct name *, struct type *); \ struct type *name##_RB_FIND(struct name *, struct type *); \ struct type *name##_RB_NEXT(struct type *); \ struct type *name##_RB_MINMAX(struct name *, int); \ \ /* Main rb operation. * Moves node close to the key of elm to top */ #define RB_GENERATE(name, type, field, cmp) \ void \ name##_RB_INSERT_COLOR(struct name *head, struct type *elm) \ { \ struct type *parent, *gparent, *tmp; \ while ((parent = RB_PARENT(elm, field)) && \ RB_COLOR(parent, field) == RB_RED) { \ gparent = RB_PARENT(parent, field); \ if (parent == RB_LEFT(gparent, field)) { \ tmp = RB_RIGHT(gparent, field); \ if (tmp && RB_COLOR(tmp, field) == RB_RED) { \ RB_COLOR(tmp, field) = RB_BLACK; \ RB_SET_BLACKRED(parent, gparent, field);\ elm = gparent; \ continue; \ } \ if (RB_RIGHT(parent, field) == elm) { \ RB_ROTATE_LEFT(head, parent, tmp, field);\ tmp = parent; \ parent = elm; \ elm = tmp; \ } \ RB_SET_BLACKRED(parent, gparent, field); \ RB_ROTATE_RIGHT(head, gparent, tmp, field); \ } else { \ tmp = RB_LEFT(gparent, field); \ if (tmp && RB_COLOR(tmp, field) == RB_RED) { \ RB_COLOR(tmp, field) = RB_BLACK; \ RB_SET_BLACKRED(parent, gparent, field);\ elm = gparent; \ continue; \ } \ if (RB_LEFT(parent, field) == elm) { \ RB_ROTATE_RIGHT(head, parent, tmp, field);\ tmp = parent; \ parent = elm; \ elm = tmp; \ } \ RB_SET_BLACKRED(parent, gparent, field); \ RB_ROTATE_LEFT(head, gparent, tmp, field); \ } \ } \ RB_COLOR(head->rbh_root, field) = RB_BLACK; \ } \ \ void \ name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm) \ { \ struct type *tmp; \ while ((elm == NULL || RB_COLOR(elm, field) == RB_BLACK) && \ elm != RB_ROOT(head)) { \ if (RB_LEFT(parent, field) == elm) { \ tmp = RB_RIGHT(parent, field); \ if (RB_COLOR(tmp, field) == RB_RED) { \ RB_SET_BLACKRED(tmp, parent, field); \ RB_ROTATE_LEFT(head, parent, tmp, field);\ tmp = RB_RIGHT(parent, field); \ } \ if ((RB_LEFT(tmp, field) == NULL || \ RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\ (RB_RIGHT(tmp, field) == NULL || \ RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\ RB_COLOR(tmp, field) = RB_RED; \ elm = parent; \ parent = RB_PARENT(elm, field); \ } else { \ if (RB_RIGHT(tmp, field) == NULL || \ RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK) {\ struct type *oleft; \ if ((oleft = RB_LEFT(tmp, field)))\ RB_COLOR(oleft, field) = RB_BLACK;\ RB_COLOR(tmp, field) = RB_RED; \ RB_ROTATE_RIGHT(head, tmp, oleft, field);\ tmp = RB_RIGHT(parent, field); \ } \ RB_COLOR(tmp, field) = RB_COLOR(parent, field);\ RB_COLOR(parent, field) = RB_BLACK; \ if (RB_RIGHT(tmp, field)) \ RB_COLOR(RB_RIGHT(tmp, field), field) = RB_BLACK;\ RB_ROTATE_LEFT(head, parent, tmp, field);\ elm = RB_ROOT(head); \ break; \ } \ } else { \ tmp = RB_LEFT(parent, field); \ if (RB_COLOR(tmp, field) == RB_RED) { \ RB_SET_BLACKRED(tmp, parent, field); \ RB_ROTATE_RIGHT(head, parent, tmp, field);\ tmp = RB_LEFT(parent, field); \ } \ if ((RB_LEFT(tmp, field) == NULL || \ RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\ (RB_RIGHT(tmp, field) == NULL || \ RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\ RB_COLOR(tmp, field) = RB_RED; \ elm = parent; \ parent = RB_PARENT(elm, field); \ } else { \ if (RB_LEFT(tmp, field) == NULL || \ RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) {\ struct type *oright; \ if ((oright = RB_RIGHT(tmp, field)))\ RB_COLOR(oright, field) = RB_BLACK;\ RB_COLOR(tmp, field) = RB_RED; \ RB_ROTATE_LEFT(head, tmp, oright, field);\ tmp = RB_LEFT(parent, field); \ } \ RB_COLOR(tmp, field) = RB_COLOR(parent, field);\ RB_COLOR(parent, field) = RB_BLACK; \ if (RB_LEFT(tmp, field)) \ RB_COLOR(RB_LEFT(tmp, field), field) = RB_BLACK;\ RB_ROTATE_RIGHT(head, parent, tmp, field);\ elm = RB_ROOT(head); \ break; \ } \ } \ } \ if (elm) \ RB_COLOR(elm, field) = RB_BLACK; \ } \ \ struct type * \ name##_RB_REMOVE(struct name *head, struct type *elm) \ { \ struct type *child, *parent, *old = elm; \ int color; \ if (RB_LEFT(elm, field) == NULL) \ child = RB_RIGHT(elm, field); \ else if (RB_RIGHT(elm, field) == NULL) \ child = RB_LEFT(elm, field); \ else { \ struct type *left; \ elm = RB_RIGHT(elm, field); \ while ((left = RB_LEFT(elm, field))) \ elm = left; \ child = RB_RIGHT(elm, field); \ parent = RB_PARENT(elm, field); \ color = RB_COLOR(elm, field); \ if (child) \ RB_PARENT(child, field) = parent; \ if (parent) { \ if (RB_LEFT(parent, field) == elm) \ RB_LEFT(parent, field) = child; \ else \ RB_RIGHT(parent, field) = child; \ RB_AUGMENT(parent); \ } else \ RB_ROOT(head) = child; \ if (RB_PARENT(elm, field) == old) \ parent = elm; \ (elm)->field = (old)->field; \ if (RB_PARENT(old, field)) { \ if (RB_LEFT(RB_PARENT(old, field), field) == old)\ RB_LEFT(RB_PARENT(old, field), field) = elm;\ else \ RB_RIGHT(RB_PARENT(old, field), field) = elm;\ RB_AUGMENT(RB_PARENT(old, field)); \ } else \ RB_ROOT(head) = elm; \ RB_PARENT(RB_LEFT(old, field), field) = elm; \ if (RB_RIGHT(old, field)) \ RB_PARENT(RB_RIGHT(old, field), field) = elm; \ if (parent) { \ left = parent; \ do { \ RB_AUGMENT(left); \ } while ((left = RB_PARENT(left, field))); \ } \ goto color; \ } \ parent = RB_PARENT(elm, field); \ color = RB_COLOR(elm, field); \ if (child) \ RB_PARENT(child, field) = parent; \ if (parent) { \ if (RB_LEFT(parent, field) == elm) \ RB_LEFT(parent, field) = child; \ else \ RB_RIGHT(parent, field) = child; \ RB_AUGMENT(parent); \ } else \ RB_ROOT(head) = child; \ color: \ if (color == RB_BLACK) \ name##_RB_REMOVE_COLOR(head, parent, child); \ return (old); \ } \ \ /* Inserts a node into the RB tree */ \ struct type * \ name##_RB_INSERT(struct name *head, struct type *elm) \ { \ struct type *tmp; \ struct type *parent = NULL; \ int comp = 0; \ tmp = RB_ROOT(head); \ while (tmp) { \ parent = tmp; \ comp = (cmp)(elm, parent); \ if (comp < 0) \ tmp = RB_LEFT(tmp, field); \ else if (comp > 0) \ tmp = RB_RIGHT(tmp, field); \ else \ return (tmp); \ } \ RB_SET(elm, parent, field); \ if (parent != NULL) { \ if (comp < 0) \ RB_LEFT(parent, field) = elm; \ else \ RB_RIGHT(parent, field) = elm; \ RB_AUGMENT(parent); \ } else \ RB_ROOT(head) = elm; \ name##_RB_INSERT_COLOR(head, elm); \ return (NULL); \ } \ \ /* Finds the node with the same key as elm */ \ struct type * \ name##_RB_FIND(struct name *head, struct type *elm) \ { \ struct type *tmp = RB_ROOT(head); \ int comp; \ while (tmp) { \ comp = cmp(elm, tmp); \ if (comp < 0) \ tmp = RB_LEFT(tmp, field); \ else if (comp > 0) \ tmp = RB_RIGHT(tmp, field); \ else \ return (tmp); \ } \ return (NULL); \ } \ \ struct type * \ name##_RB_NEXT(struct type *elm) \ { \ if (RB_RIGHT(elm, field)) { \ elm = RB_RIGHT(elm, field); \ while (RB_LEFT(elm, field)) \ elm = RB_LEFT(elm, field); \ } else { \ if (RB_PARENT(elm, field) && \ (elm == RB_LEFT(RB_PARENT(elm, field), field))) \ elm = RB_PARENT(elm, field); \ else { \ while (RB_PARENT(elm, field) && \ (elm == RB_RIGHT(RB_PARENT(elm, field), field)))\ elm = RB_PARENT(elm, field); \ elm = RB_PARENT(elm, field); \ } \ } \ return (elm); \ } \ \ struct type * \ name##_RB_MINMAX(struct name *head, int val) \ { \ struct type *tmp = RB_ROOT(head); \ struct type *parent = NULL; \ while (tmp) { \ parent = tmp; \ if (val < 0) \ tmp = RB_LEFT(tmp, field); \ else \ tmp = RB_RIGHT(tmp, field); \ } \ return (parent); \ } #define RB_NEGINF -1 #define RB_INF 1 #define RB_INSERT(name, x, y) name##_RB_INSERT(x, y) #define RB_REMOVE(name, x, y) name##_RB_REMOVE(x, y) #define RB_FIND(name, x, y) name##_RB_FIND(x, y) #define RB_NEXT(name, x, y) name##_RB_NEXT(y) #define RB_MIN(name, x) name##_RB_MINMAX(x, RB_NEGINF) #define RB_MAX(name, x) name##_RB_MINMAX(x, RB_INF) #define RB_FOREACH(x, name, head) \ for ((x) = RB_MIN(name, head); \ (x) != NULL; \ (x) = name##_RB_NEXT(x)) #endif /* _SYS_TREE_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/WIN32-Code/event2/event-config.h000644 000765 000024 00000025622 13037731714 025752 0ustar00jstaff000000 000000 /* event2/event-config.h * * This file was generated by autoconf when libevent was built, and post- * processed by Libevent so that its macros would have a uniform prefix. * * DO NOT EDIT THIS FILE. * * Do not rely on macros in this file existing in later versions. */ #ifndef _EVENT_CONFIG_H_ #define _EVENT_CONFIG_H_ /* config.h. Generated by configure. */ /* config.h.in. Generated from configure.in by autoheader. */ /* Define if libevent should not allow replacing the mm functions */ /* #undef _EVENT_DISABLE_MM_REPLACEMENT */ /* Define if libevent should not be compiled with thread support */ /* #undef _EVENT_DISABLE_THREAD_SUPPORT */ /* Define if clock_gettime is available in libc */ /* #undef _EVENT_DNS_USE_CPU_CLOCK_FOR_ID */ /* Define is no secure id variant is available */ /* #define _EVENT_DNS_USE_GETTIMEOFDAY_FOR_ID 1 */ #define _EVENT_DNS_USE_FTIME_FOR_ID 1 /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_ARPA_INET_H */ /* Define to 1 if you have the `clock_gettime' function. */ /* #undef _EVENT_HAVE_CLOCK_GETTIME */ /* Define if /dev/poll is available */ /* #undef _EVENT_HAVE_DEVPOLL */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_DLFCN_H */ /* Define if your system supports the epoll system calls */ /* #undef _EVENT_HAVE_EPOLL */ /* Define to 1 if you have the `epoll_ctl' function. */ /* #undef _EVENT_HAVE_EPOLL_CTL */ /* Define to 1 if you have the `eventfd' function. */ /* #undef _EVENT_HAVE_EVENTFD */ /* Define if your system supports event ports */ /* #undef _EVENT_HAVE_EVENT_PORTS */ /* Define to 1 if you have the `fcntl' function. */ /* #undef _EVENT_HAVE_FCNTL */ /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_FCNTL_H 1 /* Define to 1 if you have the `getaddrinfo' function. */ #define _EVENT_HAVE_GETADDRINFO 1 /* Define to 1 if you have the `getnameinfo' function. */ #define _EVENT_HAVE_GETNAMEINFO 1 /* Define to 1 if you have the `getprotobynumber' function. */ #define _EVENT_HAVE_GETPROTOBYNUMBER 1 /* Define to 1 if you have the `getservbyname' function. */ #define _EVENT_HAVE_GETSERVBYNAME 1 /* Define to 1 if you have the `gettimeofday' function. */ /* #define _EVENT_HAVE_GETTIMEOFDAY 1 */ /* Define to 1 if you have the `inet_aton' function. */ /* #undef _EVENT_HAVE_INET_ATON */ /* Define to 1 if you have the `inet_ntop' function. */ /* #undef _EVENT_HAVE_INET_NTOP */ /* Define to 1 if you have the `inet_pton' function. */ /* #undef _EVENT_HAVE_INET_PTON */ /* Define to 1 if you have the header file. */ /* #define _EVENT_HAVE_INTTYPES_H 1 */ /* Define to 1 if you have the `kqueue' function. */ /* #undef _EVENT_HAVE_KQUEUE */ /* Define if the system has zlib */ /* #undef _EVENT_HAVE_LIBZ */ /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_MEMORY_H 1 /* Define to 1 if you have the `mmap' function. */ /* #undef _EVENT_HAVE_MMAP */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_NETINET_IN6_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_NETINET_IN_H */ /* Define to 1 if you have the `pipe' function. */ /* #undef _EVENT_HAVE_PIPE */ /* Define to 1 if you have the `poll' function. */ /* #undef _EVENT_HAVE_POLL */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_POLL_H */ /* Define to 1 if you have the `port_create' function. */ /* #undef _EVENT_HAVE_PORT_CREATE */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_PORT_H */ /* Define if you have POSIX threads libraries and header files. */ /* #undef _EVENT_HAVE_PTHREAD */ /* Define if we have pthreads on this system */ /* #undef _EVENT_HAVE_PTHREADS */ /* Define to 1 if the system has the type `sa_family_t'. */ /* #undef _EVENT_HAVE_SA_FAMILY_T */ /* Define to 1 if you have the `select' function. */ /* #undef _EVENT_HAVE_SELECT */ /* Define to 1 if you have the `sendfile' function. */ /* #undef _EVENT_HAVE_SENDFILE */ /* Define if F_SETFD is defined in */ /* #undef _EVENT_HAVE_SETFD */ /* Define to 1 if you have the `sigaction' function. */ /* #undef _EVENT_HAVE_SIGACTION */ /* Define to 1 if you have the `signal' function. */ #define _EVENT_HAVE_SIGNAL 1 /* Define to 1 if you have the `splice' function. */ /* #undef _EVENT_HAVE_SPLICE */ /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_STDARG_H 1 /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_STDDEF_H 1 /* Define to 1 if you have the header file. */ /* #define _EVENT_HAVE_STDINT_H 1 */ /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_STDLIB_H 1 /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_STRINGS_H 1 /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_STRING_H 1 /* Define to 1 if you have the `strlcpy' function. */ /* #undef _EVENT_HAVE_STRLCPY */ /* Define to 1 if you have the `strsep' function. */ /* #undef _EVENT_HAVE_STRSEP */ /* Define to 1 if you have the `strtok_r' function. */ /* #undef _EVENT_HAVE_STRTOK_R */ /* Define to 1 if you have the `strtoll' function. */ /* #define _EVENT_HAVE_STRTOLL 1 */ #define _EVENT_HAVE_STRUCT_ADDRINFO 1 /* Define to 1 if the system has the type `struct in6_addr'. */ #define _EVENT_HAVE_STRUCT_IN6_ADDR 1 /* Define to 1 if `s6_addr16' is member of `struct in6_addr'. */ #define _EVENT_HAVE_STRUCT_IN6_ADDR_S6_ADDR16 1 /* Define to 1 if `s6_addr32' is member of `struct in6_addr'. */ #define _EVENT_HAVE_STRUCT_IN6_ADDR_S6_ADDR32 1 /* Define to 1 if the system has the type `struct sockaddr_in6'. */ #define _EVENT_HAVE_STRUCT_SOCKADDR_IN6 1 /* Define to 1 if `sin6_len' is member of `struct sockaddr_in6'. */ /* #undef _EVENT_HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN */ /* Define to 1 if `sin_len' is member of `struct sockaddr_in'. */ /* #undef _EVENT_HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ /* Define to 1 if the system has the type `struct sockaddr_storage'. */ #define _EVENT_HAVE_STRUCT_SOCKADDR_STORAGE 1 /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_DEVPOLL_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_EPOLL_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_EVENTFD_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_EVENT_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_IOCTL_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_MMAN_H */ /* Define to 1 if you have the header file. */ /* #define _EVENT_HAVE_SYS_PARAM_H 1 */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_QUEUE_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_SELECT_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_SENDFILE_H */ /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_SOCKET_H */ /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_SYS_STAT_H 1 /* Define to 1 if you have the header file. */ /* #define _EVENT_HAVE_SYS_TIME_H 1 */ /* Define to 1 if you have the header file. */ #define _EVENT_HAVE_SYS_TYPES_H 1 /* Define to 1 if you have the header file. */ /* #undef _EVENT_HAVE_SYS_UIO_H */ /* Define if TAILQ_FOREACH is defined in */ /* #undef _EVENT_HAVE_TAILQFOREACH */ /* Define if timeradd is defined in */ /* #undef _EVENT_HAVE_TIMERADD */ /* Define if timerclear is defined in */ #define _EVENT_HAVE_TIMERCLEAR 1 /* Define if timercmp is defined in */ #define _EVENT_HAVE_TIMERCMP 1 /* Define if timerisset is defined in */ #define _EVENT_HAVE_TIMERISSET 1 /* Define to 1 if the system has the type `uint16_t'. */ /* #define _EVENT_HAVE_UINT16_T 1 */ /* Define to 1 if the system has the type `uint32_t'. */ /* #define _EVENT_HAVE_UINT32_T 1 */ /* Define to 1 if the system has the type `uint64_t'. */ /* #define _EVENT_HAVE_UINT64_T 1 */ /* Define to 1 if the system has the type `uint8_t'. */ /* #define _EVENT_HAVE_UINT8_T 1 */ /* Define to 1 if you have the header file. */ /* #define _EVENT_HAVE_UNISTD_H 1 */ /* Define to 1 if you have the `vasprintf' function. */ /* #undef _EVENT_HAVE_VASPRINTF */ /* Define if kqueue works correctly with pipes */ /* #undef _EVENT_HAVE_WORKING_KQUEUE */ /* Numeric representation of the version */ #define _EVENT_NUMERIC_VERSION 0x02001700 /* Name of package */ #define _EVENT_PACKAGE "libevent" /* Define to the address where bug reports for this package should be sent. */ #define _EVENT_PACKAGE_BUGREPORT "" /* Define to the full name of this package. */ #define _EVENT_PACKAGE_NAME "" /* Define to the full name and version of this package. */ #define _EVENT_PACKAGE_STRING "" /* Define to the one symbol short name of this package. */ #define _EVENT_PACKAGE_TARNAME "" /* Define to the version of this package. */ #define _EVENT_PACKAGE_VERSION "" /* Define to necessary symbol if this constant uses a non-standard name on your system. */ /* #undef _EVENT_PTHREAD_CREATE_JOINABLE */ /* The size of a `int', as computed by sizeof. */ #define _EVENT_SIZEOF_INT 4 /* The size of a `long', as computed by sizeof. */ #define _EVENT_SIZEOF_LONG 4 /* The size of a `long long', as computed by sizeof. */ #define _EVENT_SIZEOF_LONG_LONG 8 /* The size of a `short', as computed by sizeof. */ #define _EVENT_SIZEOF_SHORT 2 /* The size of `size_t', as computed by sizeof. */ #ifdef _WIN64 #define _EVENT_SIZEOF_SIZE_T 8 #else #define _EVENT_SIZEOF_SIZE_T 4 #endif /* The size of `void *', as computed by sizeof. */ #ifdef _WIN64 #define _EVENT_SIZEOF_VOID_P 8 #else #define _EVENT_SIZEOF_VOID_P 4 #endif /* Define to 1 if you have the ANSI C header files. */ #define _EVENT_STDC_HEADERS 1 /* Define to 1 if you can safely include both and . */ #define _EVENT_TIME_WITH_SYS_TIME 1 /* Version number of package */ #define _EVENT_VERSION "2.0.23-stable" /* Define to appropriate substitue if compiler doesnt have __func__ */ #define _EVENT___func__ __FUNCTION__ /* Define to empty if `const' does not conform to ANSI C. */ /* #undef _EVENT_const */ /* Define to `__inline__' or `__inline' if that's what the C compiler calls it, or to nothing if 'inline' is not supported under any name. */ #ifndef _EVENT___cplusplus #define _EVENT_inline __inline #endif /* Define to `int' if does not define. */ /* #undef _EVENT_pid_t */ /* Define to `unsigned' if does not define. */ /* #undef _EVENT_size_t */ /* Define to unsigned int if you dont have it */ #define _EVENT_socklen_t unsigned int /* Define to `int' if does not define. */ #define _EVENT_ssize_t SSIZE_T #endif dnscrypt-proxy-1.9.4/src/libevent-modified/test/bench.c000644 000765 000024 00000011355 13037731714 022540 0ustar00jstaff000000 000000 /* * Copyright 2003-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * Mon 03/10/2003 - Modified by Davide Libenzi * * Added chain event propagation to improve the sensitivity of * the measure respect to the event loop efficency. * * */ #include "event2/event-config.h" #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #ifdef WIN32 #define WIN32_LEAN_AND_MEAN #include #else #include #include #include #endif #include #include #include #include #ifdef _EVENT_HAVE_UNISTD_H #include #endif #include #include #include static int count, writes, fired; static evutil_socket_t *pipes; static int num_pipes, num_active, num_writes; static struct event *events; static void read_cb(evutil_socket_t fd, short which, void *arg) { ev_intptr_t idx = (ev_intptr_t) arg, widx = idx + 1; u_char ch; count += recv(fd, (char*)&ch, sizeof(ch), 0); if (writes) { if (widx >= num_pipes) widx -= num_pipes; send(pipes[2 * widx + 1], "e", 1, 0); writes--; fired++; } } static struct timeval * run_once(void) { evutil_socket_t *cp, space; long i; static struct timeval ts, te; for (cp = pipes, i = 0; i < num_pipes; i++, cp += 2) { if (event_initialized(&events[i])) event_del(&events[i]); event_set(&events[i], cp[0], EV_READ | EV_PERSIST, read_cb, (void *)(ev_intptr_t) i); event_add(&events[i], NULL); } event_loop(EVLOOP_ONCE | EVLOOP_NONBLOCK); fired = 0; space = num_pipes / num_active; space = space * 2; for (i = 0; i < num_active; i++, fired++) send(pipes[i * space + 1], "e", 1, 0); count = 0; writes = num_writes; { int xcount = 0; evutil_gettimeofday(&ts, NULL); do { event_loop(EVLOOP_ONCE | EVLOOP_NONBLOCK); xcount++; } while (count != fired); evutil_gettimeofday(&te, NULL); if (xcount != count) fprintf(stderr, "Xcount: %d, Rcount: %d\n", xcount, count); } evutil_timersub(&te, &ts, &te); return (&te); } int main(int argc, char **argv) { #ifndef WIN32 struct rlimit rl; #endif int i, c; struct timeval *tv; evutil_socket_t *cp; #ifdef WIN32 WSADATA WSAData; WSAStartup(0x101, &WSAData); #endif num_pipes = 100; num_active = 1; num_writes = num_pipes; while ((c = getopt(argc, argv, "n:a:w:")) != -1) { switch (c) { case 'n': num_pipes = atoi(optarg); break; case 'a': num_active = atoi(optarg); break; case 'w': num_writes = atoi(optarg); break; default: fprintf(stderr, "Illegal argument \"%c\"\n", c); exit(1); } } #ifndef WIN32 rl.rlim_cur = rl.rlim_max = num_pipes * 2 + 50; if (setrlimit(RLIMIT_NOFILE, &rl) == -1) { perror("setrlimit"); exit(1); } #endif events = calloc(num_pipes, sizeof(struct event)); pipes = calloc(num_pipes * 2, sizeof(evutil_socket_t)); if (events == NULL || pipes == NULL) { perror("malloc"); exit(1); } event_init(); for (cp = pipes, i = 0; i < num_pipes; i++, cp += 2) { #ifdef USE_PIPES if (pipe(cp) == -1) { #else if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, cp) == -1) { #endif perror("pipe"); exit(1); } } for (i = 0; i < 25; i++) { tv = run_once(); if (tv == NULL) exit(1); fprintf(stdout, "%ld\n", tv->tv_sec * 1000000L + tv->tv_usec); } exit(0); } dnscrypt-proxy-1.9.4/src/libevent-modified/test/bench_cascade.c000644 000765 000024 00000010550 13037731714 024177 0ustar00jstaff000000 000000 /* * Copyright 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include "event2/event-config.h" #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #ifdef WIN32 #define WIN32_LEAN_AND_MEAN #include #else #include #include #endif #include #include #include #include #include #ifdef _EVENT_HAVE_UNISTD_H #include #endif #include #include #include /* * This benchmark tests how quickly we can propagate a write down a chain * of socket pairs. We start by writing to the first socket pair and all * events will fire subsequently until the last socket pair has been reached * and the benchmark terminates. */ static int fired; static evutil_socket_t *pipes; static struct event *events; static void read_cb(evutil_socket_t fd, short which, void *arg) { char ch; evutil_socket_t sock = (evutil_socket_t)(ev_intptr_t)arg; recv(fd, &ch, sizeof(ch), 0); if (sock >= 0) { if (send(sock, "e", 1, 0) < 0) perror("send"); } fired++; } static struct timeval * run_once(int num_pipes) { int i; evutil_socket_t *cp; static struct timeval ts, te, tv_timeout; events = calloc(num_pipes, sizeof(struct event)); pipes = calloc(num_pipes * 2, sizeof(evutil_socket_t)); if (events == NULL || pipes == NULL) { perror("malloc"); exit(1); } for (cp = pipes, i = 0; i < num_pipes; i++, cp += 2) { if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, cp) == -1) { perror("socketpair"); exit(1); } } /* measurements includes event setup */ evutil_gettimeofday(&ts, NULL); /* provide a default timeout for events */ evutil_timerclear(&tv_timeout); tv_timeout.tv_sec = 60; for (cp = pipes, i = 0; i < num_pipes; i++, cp += 2) { evutil_socket_t fd = i < num_pipes - 1 ? cp[3] : -1; event_set(&events[i], cp[0], EV_READ, read_cb, (void *)(ev_intptr_t)fd); event_add(&events[i], &tv_timeout); } fired = 0; /* kick everything off with a single write */ if (send(pipes[1], "e", 1, 0) < 0) perror("send"); event_dispatch(); evutil_gettimeofday(&te, NULL); evutil_timersub(&te, &ts, &te); for (cp = pipes, i = 0; i < num_pipes; i++, cp += 2) { event_del(&events[i]); close(cp[0]); close(cp[1]); } free(pipes); free(events); return (&te); } int main(int argc, char **argv) { #ifndef WIN32 struct rlimit rl; #endif int i, c; struct timeval *tv; int num_pipes = 100; while ((c = getopt(argc, argv, "n:")) != -1) { switch (c) { case 'n': num_pipes = atoi(optarg); break; default: fprintf(stderr, "Illegal argument \"%c\"\n", c); exit(1); } } #ifndef WIN32 rl.rlim_cur = rl.rlim_max = num_pipes * 2 + 50; if (setrlimit(RLIMIT_NOFILE, &rl) == -1) { perror("setrlimit"); exit(1); } #endif event_init(); for (i = 0; i < 25; i++) { tv = run_once(num_pipes); if (tv == NULL) exit(1); fprintf(stdout, "%ld\n", tv->tv_sec * 1000000L + tv->tv_usec); } exit(0); } dnscrypt-proxy-1.9.4/src/libevent-modified/test/bench_http.c000644 000765 000024 00000011564 13037731714 023601 0ustar00jstaff000000 000000 /* * Copyright 2008-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include #include #ifdef WIN32 #include #else #include #include #include #include #endif #include #include #include #include #include #include #include "event2/event.h" #include "event2/buffer.h" #include "event2/util.h" #include "event2/http.h" #include "event2/thread.h" static void http_basic_cb(struct evhttp_request *req, void *arg); static char *content; static size_t content_len = 0; static void http_basic_cb(struct evhttp_request *req, void *arg) { struct evbuffer *evb = evbuffer_new(); evbuffer_add(evb, content, content_len); /* allow sending of an empty reply */ evhttp_send_reply(req, HTTP_OK, "Everything is fine", evb); evbuffer_free(evb); } #if LIBEVENT_VERSION_NUMBER >= 0x02000200 static void http_ref_cb(struct evhttp_request *req, void *arg) { struct evbuffer *evb = evbuffer_new(); evbuffer_add_reference(evb, content, content_len, NULL, NULL); /* allow sending of an empty reply */ evhttp_send_reply(req, HTTP_OK, "Everything is fine", evb); evbuffer_free(evb); } #endif int main(int argc, char **argv) { struct event_config *cfg = event_config_new(); struct event_base *base; struct evhttp *http; int i; int c; int use_iocp = 0; unsigned short port = 8080; char *endptr = NULL; #ifdef WIN32 WSADATA WSAData; WSAStartup(0x101, &WSAData); #else if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) return (1); #endif for (i = 1; i < argc; ++i) { if (*argv[i] != '-') continue; c = argv[i][1]; if ((c == 'p' || c == 'l') && i + 1 >= argc) { fprintf(stderr, "-%c requires argument.\n", c); exit(1); } switch (c) { case 'p': if (i+1 >= argc || !argv[i+1]) { fprintf(stderr, "Missing port\n"); exit(1); } port = (int)strtol(argv[i+1], &endptr, 10); if (*endptr != '\0') { fprintf(stderr, "Bad port\n"); exit(1); } break; case 'l': if (i+1 >= argc || !argv[i+1]) { fprintf(stderr, "Missing content length\n"); exit(1); } content_len = (size_t)strtol(argv[i+1], &endptr, 10); if (*endptr != '\0' || content_len == 0) { fprintf(stderr, "Bad content length\n"); exit(1); } break; #ifdef WIN32 # ifndef _EVENT_DISABLE_THREAD_SUPPORT case 'i': use_iocp = 1; evthread_use_windows_threads(); event_config_set_flag(cfg,EVENT_BASE_FLAG_STARTUP_IOCP); break; # endif #endif default: fprintf(stderr, "Illegal argument \"%c\"\n", c); exit(1); } } base = event_base_new_with_config(cfg); if (!base) { fprintf(stderr, "creating event_base failed. Exiting.\n"); return 1; } http = evhttp_new(base); content = malloc(content_len); if (content == NULL) { fprintf(stderr, "Cannot allocate content\n"); exit(1); } else { int i = 0; for (i = 0; i < (int)content_len; ++i) content[i] = (i & 255); } evhttp_set_cb(http, "/ind", http_basic_cb, NULL); fprintf(stderr, "/ind - basic content (memory copy)\n"); #ifdef _EVENT2_EVENT_H_ evhttp_set_cb(http, "/ref", http_ref_cb, NULL); fprintf(stderr, "/ref - basic content (reference)\n"); #endif fprintf(stderr, "Serving %d bytes on port %d using %s\n", (int)content_len, port, use_iocp? "IOCP" : event_base_get_method(base)); evhttp_bind_socket(http, "0.0.0.0", port); if (use_iocp) { struct timeval tv={99999999,0}; event_base_loopexit(base, &tv); } event_base_dispatch(base); /* NOTREACHED */ return (0); } dnscrypt-proxy-1.9.4/src/libevent-modified/test/bench_httpclient.c000644 000765 000024 00000013166 13037731714 025000 0ustar00jstaff000000 000000 /* * Copyright 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include #ifdef WIN32 #include #else #include #include # ifdef _XOPEN_SOURCE_EXTENDED # include # endif #endif #include #include #include #include "event2/event.h" #include "event2/bufferevent.h" #include "event2/buffer.h" #include "event2/util.h" /* for EVUTIL_ERR_CONNECT_RETRIABLE macro */ #include "util-internal.h" const char *resource = NULL; struct event_base *base = NULL; int total_n_handled = 0; int total_n_errors = 0; int total_n_launched = 0; size_t total_n_bytes = 0; struct timeval total_time = {0,0}; int n_errors = 0; const int PARALLELISM = 200; const int N_REQUESTS = 20000; struct request_info { size_t n_read; struct timeval started; }; static int launch_request(void); static void readcb(struct bufferevent *b, void *arg); static void errorcb(struct bufferevent *b, short what, void *arg); static void readcb(struct bufferevent *b, void *arg) { struct request_info *ri = arg; struct evbuffer *input = bufferevent_get_input(b); size_t n = evbuffer_get_length(input); ri->n_read += n; evbuffer_drain(input, n); } static void errorcb(struct bufferevent *b, short what, void *arg) { struct request_info *ri = arg; struct timeval now, diff; if (what & BEV_EVENT_EOF) { ++total_n_handled; total_n_bytes += ri->n_read; evutil_gettimeofday(&now, NULL); evutil_timersub(&now, &ri->started, &diff); evutil_timeradd(&diff, &total_time, &total_time); if (total_n_handled && (total_n_handled%1000)==0) printf("%d requests done\n",total_n_handled); if (total_n_launched < N_REQUESTS) { if (launch_request() < 0) perror("Can't launch"); } } else { ++total_n_errors; perror("Unexpected error"); } bufferevent_setcb(b, NULL, NULL, NULL, NULL); free(ri); bufferevent_disable(b, EV_READ|EV_WRITE); bufferevent_free(b); } static void frob_socket(evutil_socket_t sock) { struct linger l; int one = 1; if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&one, sizeof(one))<0) perror("setsockopt(SO_REUSEADDR)"); l.l_onoff = 1; l.l_linger = 0; if (setsockopt(sock, SOL_SOCKET, SO_LINGER, (void*)&l, sizeof(l))<0) perror("setsockopt(SO_LINGER)"); } static int launch_request(void) { evutil_socket_t sock; struct sockaddr_in sin; struct bufferevent *b; struct request_info *ri; memset(&sin, 0, sizeof(sin)); ++total_n_launched; sin.sin_family = AF_INET; sin.sin_addr.s_addr = htonl(0x7f000001); sin.sin_port = htons(8080); if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) return -1; if (evutil_make_socket_nonblocking(sock) < 0) return -1; frob_socket(sock); if (connect(sock, (struct sockaddr*)&sin, sizeof(sin)) < 0) { int e = errno; if (! EVUTIL_ERR_CONNECT_RETRIABLE(e)) { return -1; } } ri = malloc(sizeof(*ri)); ri->n_read = 0; evutil_gettimeofday(&ri->started, NULL); b = bufferevent_socket_new(base, sock, BEV_OPT_CLOSE_ON_FREE); bufferevent_setcb(b, readcb, NULL, errorcb, ri); bufferevent_enable(b, EV_READ|EV_WRITE); evbuffer_add_printf(bufferevent_get_output(b), "GET %s HTTP/1.0\r\n\r\n", resource); return 0; } int main(int argc, char **argv) { int i; struct timeval start, end, total; long long usec; double throughput; resource = "/ref"; setvbuf(stdout, NULL, _IONBF, 0); base = event_base_new(); for (i=0; i < PARALLELISM; ++i) { if (launch_request() < 0) perror("launch"); } evutil_gettimeofday(&start, NULL); event_base_dispatch(base); evutil_gettimeofday(&end, NULL); evutil_timersub(&end, &start, &total); usec = total_time.tv_sec * 1000000 + total_time.tv_usec; if (!total_n_handled) { puts("Nothing worked. You probably did something dumb."); return 0; } throughput = total_n_handled / (total.tv_sec+ ((double)total.tv_usec)/1000000.0); #ifdef WIN32 #define I64_FMT "%I64d" #define I64_TYP __int64 #else #define I64_FMT "%lld" #define I64_TYP long long int #endif printf("\n%d requests in %d.%06d sec. (%.2f throughput)\n" "Each took about %.02f msec latency\n" I64_FMT "bytes read. %d errors.\n", total_n_handled, (int)total.tv_sec, (int)total.tv_usec, throughput, (double)(usec/1000) / total_n_handled, (I64_TYP)total_n_bytes, n_errors); return 0; } dnscrypt-proxy-1.9.4/src/libevent-modified/test/Makefile.am000644 000765 000024 00000006225 13037731714 023351 0ustar00jstaff000000 000000 # test/Makefile.am for libevent # Copyright 2000-2007 Niels Provos # Copyright 2007-2012 Niels Provos and Nick Mathewson # # See LICENSE for copying information. AUTOMAKE_OPTIONS = foreign AM_CPPFLAGS = -I$(top_srcdir) -I$(top_srcdir)/compat -I$(top_srcdir)/include -I../include -DTINYTEST_LOCAL EXTRA_DIST = regress.rpc regress.gen.h regress.gen.c rpcgen_wrapper.sh test.sh noinst_PROGRAMS = test-init test-eof test-weof test-time \ bench bench_cascade bench_http bench_httpclient test-ratelim \ test-changelist if BUILD_REGRESS noinst_PROGRAMS += regress endif EXTRA_PROGRAMS = regress noinst_HEADERS = tinytest.h tinytest_macros.h regress.h tinytest_local.h # We need to copy this file, since automake doesn't want us to use top_srcdir # in TESTS. TESTS = test-script.sh test-script.sh: test.sh cp $< $@ DISTCLEANFILES = test-script.sh BUILT_SOURCES = if BUILD_REGRESS BUILT_SOURCES += regress.gen.c regress.gen.h endif test_init_SOURCES = test-init.c test_init_LDADD = ../libevent_core.la test_eof_SOURCES = test-eof.c test_eof_LDADD = ../libevent_core.la test_changelist_SOURCES = test-changelist.c test_changelist_LDADD = ../libevent_core.la test_weof_SOURCES = test-weof.c test_weof_LDADD = ../libevent_core.la test_time_SOURCES = test-time.c test_time_LDADD = ../libevent_core.la test_ratelim_SOURCES = test-ratelim.c test_ratelim_LDADD = ../libevent_core.la -lm regress_SOURCES = regress.c regress_buffer.c regress_http.c \ regress_testutils.c regress_testutils.h \ regress_rpc.c regress.gen.c regress.gen.h regress_et.c \ regress_bufferevent.c regress_listener.c \ regress_util.c tinytest.c regress_main.c regress_minheap.c \ $(regress_thread_SOURCES) $(regress_zlib_SOURCES) if PTHREADS regress_thread_SOURCES = regress_thread.c PTHREAD_LIBS += ../libevent_pthreads.la endif if BUILD_WIN32 regress_thread_SOURCES = regress_thread.c endif if ZLIB_REGRESS regress_zlib_SOURCES = regress_zlib.c endif if BUILD_WIN32 regress_SOURCES += regress_iocp.c endif regress_LDADD = $(LIBEVENT_GC_SECTIONS) ../libevent.la $(PTHREAD_LIBS) $(ZLIB_LIBS) regress_CPPFLAGS = $(AM_CPPFLAGS) $(PTHREAD_CFLAGS) $(ZLIB_CFLAGS) regress_LDFLAGS = $(PTHREAD_CFLAGS) if OPENSSL regress_SOURCES += regress_ssl.c regress_LDADD += ../libevent_openssl.la -lssl -lcrypto ${OPENSSL_LIBADD} endif bench_SOURCES = bench.c bench_LDADD = $(LIBEVENT_GC_SECTIONS) ../libevent.la bench_cascade_SOURCES = bench_cascade.c bench_cascade_LDADD = $(LIBEVENT_GC_SECTIONS) ../libevent.la bench_http_SOURCES = bench_http.c bench_http_LDADD = $(LIBEVENT_GC_SECTIONS) ../libevent.la bench_httpclient_SOURCES = bench_httpclient.c bench_httpclient_LDADD = $(LIBEVENT_GC_SECTIONS) ../libevent_core.la regress.gen.c regress.gen.h: rpcgen-attempted rpcgen-attempted: $(srcdir)/regress.rpc $(srcdir)/../event_rpcgen.py $(srcdir)/rpcgen_wrapper.sh date -u > $@ if $(srcdir)/rpcgen_wrapper.sh $(srcdir); then \ echo "rpcgen okay"; \ else \ echo "No Python installed; stubbing out RPC test." >&2; \ echo " "> regress.gen.c; \ echo "#define NO_PYTHON_EXISTS" > regress.gen.h; \ fi CLEANFILES = rpcgen-attempted DISTCLEANFILES += *~ verify: check bench test-init test-eof test-weof test-time test-changelist: ../libevent.la dnscrypt-proxy-1.9.4/src/libevent-modified/test/Makefile.in000644 000765 000024 00000224262 13040635262 023360 0ustar00jstaff000000 000000 # Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # test/Makefile.am for libevent # Copyright 2000-2007 Niels Provos # Copyright 2007-2012 Niels Provos and Nick Mathewson # # See LICENSE for copying information. 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then \ echo "rpcgen okay"; \ else \ echo "No Python installed; stubbing out RPC test." >&2; \ echo " "> regress.gen.c; \ echo "#define NO_PYTHON_EXISTS" > regress.gen.h; \ fi verify: check bench test-init test-eof test-weof test-time test-changelist: ../libevent.la # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: dnscrypt-proxy-1.9.4/src/libevent-modified/test/Makefile.nmake000644 000765 000024 00000003466 13037731714 024053 0ustar00jstaff000000 000000 CFLAGS=/I.. /I../WIN32-Code /I../include /I../compat /DWIN32 /DHAVE_CONFIG_H /DTINYTEST_LOCAL CFLAGS=$(CFLAGS) /Ox /W3 /wd4996 /nologo REGRESS_OBJS=regress.obj regress_buffer.obj regress_http.obj regress_dns.obj \ regress_testutils.obj \ regress_rpc.obj regress.gen.obj \ regress_et.obj regress_bufferevent.obj \ regress_listener.obj regress_util.obj tinytest.obj \ regress_main.obj regress_minheap.obj regress_iocp.obj \ regress_thread.obj OTHER_OBJS=test-init.obj test-eof.obj test-weof.obj test-time.obj \ bench.obj bench_cascade.obj bench_http.obj bench_httpclient.obj \ test-changelist.obj PROGRAMS=regress.exe \ test-init.exe test-eof.exe test-weof.exe test-time.exe \ test-changelist.exe # Disabled for now: # bench.exe bench_cascade.exe bench_http.exe bench_httpclient.exe LIBS=..\libevent.lib ws2_32.lib shell32.lib advapi32.lib all: $(PROGRAMS) regress.exe: $(REGRESS_OBJS) $(CC) $(CFLAGS) $(LIBS) $(REGRESS_OBJS) test-init.exe: test-init.obj $(CC) $(CFLAGS) $(LIBS) test-init.obj test-eof.exe: test-eof.obj $(CC) $(CFLAGS) $(LIBS) test-eof.obj test-changelist.exe: test-changelist.obj $(CC) $(CFLAGS) $(LIBS) test-changelist.obj test-weof.exe: test-weof.obj $(CC) $(CFLAGS) $(LIBS) test-weof.obj test-time.exe: test-time.obj $(CC) $(CFLAGS) $(LIBS) test-time.obj bench.exe: bench.obj $(CC) $(CFLAGS) $(LIBS) bench.obj bench_cascade.exe: bench_cascade.obj $(CC) $(CFLAGS) $(LIBS) bench_cascade.obj bench_http.exe: bench_http.obj $(CC) $(CFLAGS) $(LIBS) bench_http.obj bench_httpclient.exe: bench_httpclient.obj $(CC) $(CFLAGS) $(LIBS) bench_httpclient.obj regress.gen.c regress.gen.h: regress.rpc ../event_rpcgen.py echo // > regress.gen.c echo #define NO_PYTHON_EXISTS > regress.gen.h -python ..\event_rpcgen.py regress.rpc clean: -del $(REGRESS_OBJS) -del $(OTHER_OBJS) -del regress.exe dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress.c000644 000765 000024 00000153540 13037731714 023136 0ustar00jstaff000000 000000 /* * Copyright (c) 2003-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef WIN32 #include #include #endif #include "event2/event-config.h" #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #ifndef WIN32 #include #include #include #include #include #endif #include #include #include #include #include #include #include #include #include "event2/event.h" #include "event2/event_struct.h" #include "event2/event_compat.h" #include "event2/tag.h" #include "event2/buffer.h" #include "event2/buffer_compat.h" #include "event2/util.h" #include "event-internal.h" #include "evthread-internal.h" #include "util-internal.h" #include "log-internal.h" #include "regress.h" #ifndef WIN32 #include "regress.gen.h" #endif evutil_socket_t pair[2]; int test_ok; int called; struct event_base *global_base; static char wbuf[4096]; static char rbuf[4096]; static int woff; static int roff; static int usepersist; static struct timeval tset; static struct timeval tcalled; #define TEST1 "this is a test" #define SECONDS 1 #ifndef SHUT_WR #define SHUT_WR 1 #endif #ifdef WIN32 #define write(fd,buf,len) send((fd),(buf),(int)(len),0) #define read(fd,buf,len) recv((fd),(buf),(int)(len),0) #endif struct basic_cb_args { struct event_base *eb; struct event *ev; unsigned int callcount; }; static void simple_read_cb(evutil_socket_t fd, short event, void *arg) { char buf[256]; int len; len = read(fd, buf, sizeof(buf)); if (len) { if (!called) { if (event_add(arg, NULL) == -1) exit(1); } } else if (called == 1) test_ok = 1; called++; } static void basic_read_cb(evutil_socket_t fd, short event, void *data) { char buf[256]; int len; struct basic_cb_args *arg = data; len = read(fd, buf, sizeof(buf)); if (len < 0) { tt_fail_perror("read (callback)"); } else { switch (arg->callcount++) { case 0: /* first call: expect to read data; cycle */ if (len > 0) return; tt_fail_msg("EOF before data read"); break; case 1: /* second call: expect EOF; stop */ if (len > 0) tt_fail_msg("not all data read on first cycle"); break; default: /* third call: should not happen */ tt_fail_msg("too many cycles"); } } event_del(arg->ev); event_base_loopexit(arg->eb, NULL); } static void dummy_read_cb(evutil_socket_t fd, short event, void *arg) { } static void simple_write_cb(evutil_socket_t fd, short event, void *arg) { int len; len = write(fd, TEST1, strlen(TEST1) + 1); if (len == -1) test_ok = 0; else test_ok = 1; } static void multiple_write_cb(evutil_socket_t fd, short event, void *arg) { struct event *ev = arg; int len; len = 128; if (woff + len >= (int)sizeof(wbuf)) len = sizeof(wbuf) - woff; len = write(fd, wbuf + woff, len); if (len == -1) { fprintf(stderr, "%s: write\n", __func__); if (usepersist) event_del(ev); return; } woff += len; if (woff >= (int)sizeof(wbuf)) { shutdown(fd, SHUT_WR); if (usepersist) event_del(ev); return; } if (!usepersist) { if (event_add(ev, NULL) == -1) exit(1); } } static void multiple_read_cb(evutil_socket_t fd, short event, void *arg) { struct event *ev = arg; int len; len = read(fd, rbuf + roff, sizeof(rbuf) - roff); if (len == -1) fprintf(stderr, "%s: read\n", __func__); if (len <= 0) { if (usepersist) event_del(ev); return; } roff += len; if (!usepersist) { if (event_add(ev, NULL) == -1) exit(1); } } static void timeout_cb(evutil_socket_t fd, short event, void *arg) { struct timeval tv; int diff; evutil_gettimeofday(&tcalled, NULL); if (evutil_timercmp(&tcalled, &tset, >)) evutil_timersub(&tcalled, &tset, &tv); else evutil_timersub(&tset, &tcalled, &tv); diff = tv.tv_sec*1000 + tv.tv_usec/1000 - SECONDS * 1000; if (diff < 0) diff = -diff; if (diff < 100) test_ok = 1; } struct both { struct event ev; int nread; }; static void combined_read_cb(evutil_socket_t fd, short event, void *arg) { struct both *both = arg; char buf[128]; int len; len = read(fd, buf, sizeof(buf)); if (len == -1) fprintf(stderr, "%s: read\n", __func__); if (len <= 0) return; both->nread += len; if (event_add(&both->ev, NULL) == -1) exit(1); } static void combined_write_cb(evutil_socket_t fd, short event, void *arg) { struct both *both = arg; char buf[128]; int len; len = sizeof(buf); if (len > both->nread) len = both->nread; memset(buf, 'q', len); len = write(fd, buf, len); if (len == -1) fprintf(stderr, "%s: write\n", __func__); if (len <= 0) { shutdown(fd, SHUT_WR); return; } both->nread -= len; if (event_add(&both->ev, NULL) == -1) exit(1); } /* These macros used to replicate the work of the legacy test wrapper code */ #define setup_test(x) do { \ if (!in_legacy_test_wrapper) { \ TT_FAIL(("Legacy test %s not wrapped properly", x)); \ return; \ } \ } while (0) #define cleanup_test() setup_test("cleanup") static void test_simpleread(void) { struct event ev; /* Very simple read test */ setup_test("Simple read: "); if (write(pair[0], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); } shutdown(pair[0], SHUT_WR); event_set(&ev, pair[1], EV_READ, simple_read_cb, &ev); if (event_add(&ev, NULL) == -1) exit(1); event_dispatch(); cleanup_test(); } static void test_simplewrite(void) { struct event ev; /* Very simple write test */ setup_test("Simple write: "); event_set(&ev, pair[0], EV_WRITE, simple_write_cb, &ev); if (event_add(&ev, NULL) == -1) exit(1); event_dispatch(); cleanup_test(); } static void simpleread_multiple_cb(evutil_socket_t fd, short event, void *arg) { if (++called == 2) test_ok = 1; } static void test_simpleread_multiple(void) { struct event one, two; /* Very simple read test */ setup_test("Simple read to multiple evens: "); if (write(pair[0], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); } shutdown(pair[0], SHUT_WR); event_set(&one, pair[1], EV_READ, simpleread_multiple_cb, NULL); if (event_add(&one, NULL) == -1) exit(1); event_set(&two, pair[1], EV_READ, simpleread_multiple_cb, NULL); if (event_add(&two, NULL) == -1) exit(1); event_dispatch(); cleanup_test(); } static int have_closed = 0; static int premature_event = 0; static void simpleclose_close_fd_cb(evutil_socket_t s, short what, void *ptr) { evutil_socket_t **fds = ptr; TT_BLATHER(("Closing")); evutil_closesocket(*fds[0]); evutil_closesocket(*fds[1]); *fds[0] = -1; *fds[1] = -1; have_closed = 1; } static void record_event_cb(evutil_socket_t s, short what, void *ptr) { short *whatp = ptr; if (!have_closed) premature_event = 1; *whatp = what; TT_BLATHER(("Recorded %d on socket %d", (int)what, (int)s)); } static void test_simpleclose(void *ptr) { /* Test that a close of FD is detected as a read and as a write. */ struct event_base *base = event_base_new(); evutil_socket_t pair1[2]={-1,-1}, pair2[2] = {-1, -1}; evutil_socket_t *to_close[2]; struct event *rev=NULL, *wev=NULL, *closeev=NULL; struct timeval tv; short got_read_on_close = 0, got_write_on_close = 0; char buf[1024]; memset(buf, 99, sizeof(buf)); #ifdef WIN32 #define LOCAL_SOCKETPAIR_AF AF_INET #else #define LOCAL_SOCKETPAIR_AF AF_UNIX #endif if (evutil_socketpair(LOCAL_SOCKETPAIR_AF, SOCK_STREAM, 0, pair1)<0) TT_DIE(("socketpair: %s", strerror(errno))); if (evutil_socketpair(LOCAL_SOCKETPAIR_AF, SOCK_STREAM, 0, pair2)<0) TT_DIE(("socketpair: %s", strerror(errno))); if (evutil_make_socket_nonblocking(pair1[1]) < 0) TT_DIE(("make_socket_nonblocking")); if (evutil_make_socket_nonblocking(pair2[1]) < 0) TT_DIE(("make_socket_nonblocking")); /** Stuff pair2[1] full of data, until write fails */ while (1) { int r = write(pair2[1], buf, sizeof(buf)); if (r<0) { int err = evutil_socket_geterror(pair2[1]); if (! EVUTIL_ERR_RW_RETRIABLE(err)) TT_DIE(("write failed strangely: %s", evutil_socket_error_to_string(err))); break; } } to_close[0] = &pair1[0]; to_close[1] = &pair2[0]; closeev = event_new(base, -1, EV_TIMEOUT, simpleclose_close_fd_cb, to_close); rev = event_new(base, pair1[1], EV_READ, record_event_cb, &got_read_on_close); TT_BLATHER(("Waiting for read on %d", (int)pair1[1])); wev = event_new(base, pair2[1], EV_WRITE, record_event_cb, &got_write_on_close); TT_BLATHER(("Waiting for write on %d", (int)pair2[1])); tv.tv_sec = 0; tv.tv_usec = 100*1000; /* Close pair1[0] after a little while, and make * sure we get a read event. */ event_add(closeev, &tv); event_add(rev, NULL); event_add(wev, NULL); /* Don't let the test go on too long. */ tv.tv_sec = 0; tv.tv_usec = 200*1000; event_base_loopexit(base, &tv); event_base_loop(base, 0); tt_int_op(got_read_on_close, ==, EV_READ); tt_int_op(got_write_on_close, ==, EV_WRITE); tt_int_op(premature_event, ==, 0); end: if (pair1[0] >= 0) evutil_closesocket(pair1[0]); if (pair1[1] >= 0) evutil_closesocket(pair1[1]); if (pair2[0] >= 0) evutil_closesocket(pair2[0]); if (pair2[1] >= 0) evutil_closesocket(pair2[1]); if (rev) event_free(rev); if (wev) event_free(wev); if (closeev) event_free(closeev); if (base) event_base_free(base); } static void test_multiple(void) { struct event ev, ev2; int i; /* Multiple read and write test */ setup_test("Multiple read/write: "); memset(rbuf, 0, sizeof(rbuf)); for (i = 0; i < (int)sizeof(wbuf); i++) wbuf[i] = i; roff = woff = 0; usepersist = 0; event_set(&ev, pair[0], EV_WRITE, multiple_write_cb, &ev); if (event_add(&ev, NULL) == -1) exit(1); event_set(&ev2, pair[1], EV_READ, multiple_read_cb, &ev2); if (event_add(&ev2, NULL) == -1) exit(1); event_dispatch(); if (roff == woff) test_ok = memcmp(rbuf, wbuf, sizeof(wbuf)) == 0; cleanup_test(); } static void test_persistent(void) { struct event ev, ev2; int i; /* Multiple read and write test with persist */ setup_test("Persist read/write: "); memset(rbuf, 0, sizeof(rbuf)); for (i = 0; i < (int)sizeof(wbuf); i++) wbuf[i] = i; roff = woff = 0; usepersist = 1; event_set(&ev, pair[0], EV_WRITE|EV_PERSIST, multiple_write_cb, &ev); if (event_add(&ev, NULL) == -1) exit(1); event_set(&ev2, pair[1], EV_READ|EV_PERSIST, multiple_read_cb, &ev2); if (event_add(&ev2, NULL) == -1) exit(1); event_dispatch(); if (roff == woff) test_ok = memcmp(rbuf, wbuf, sizeof(wbuf)) == 0; cleanup_test(); } static void test_combined(void) { struct both r1, r2, w1, w2; setup_test("Combined read/write: "); memset(&r1, 0, sizeof(r1)); memset(&r2, 0, sizeof(r2)); memset(&w1, 0, sizeof(w1)); memset(&w2, 0, sizeof(w2)); w1.nread = 4096; w2.nread = 8192; event_set(&r1.ev, pair[0], EV_READ, combined_read_cb, &r1); event_set(&w1.ev, pair[0], EV_WRITE, combined_write_cb, &w1); event_set(&r2.ev, pair[1], EV_READ, combined_read_cb, &r2); event_set(&w2.ev, pair[1], EV_WRITE, combined_write_cb, &w2); tt_assert(event_add(&r1.ev, NULL) != -1); tt_assert(!event_add(&w1.ev, NULL)); tt_assert(!event_add(&r2.ev, NULL)); tt_assert(!event_add(&w2.ev, NULL)); event_dispatch(); if (r1.nread == 8192 && r2.nread == 4096) test_ok = 1; end: cleanup_test(); } static void test_simpletimeout(void) { struct timeval tv; struct event ev; setup_test("Simple timeout: "); tv.tv_usec = 0; tv.tv_sec = SECONDS; evtimer_set(&ev, timeout_cb, NULL); evtimer_add(&ev, &tv); evutil_gettimeofday(&tset, NULL); event_dispatch(); cleanup_test(); } static void periodic_timeout_cb(evutil_socket_t fd, short event, void *arg) { int *count = arg; (*count)++; if (*count == 6) { /* call loopexit only once - on slow machines(?), it is * apparently possible for this to get called twice. */ test_ok = 1; event_base_loopexit(global_base, NULL); } } static void test_persistent_timeout(void) { struct timeval tv; struct event ev; int count = 0; evutil_timerclear(&tv); tv.tv_usec = 10000; event_assign(&ev, global_base, -1, EV_TIMEOUT|EV_PERSIST, periodic_timeout_cb, &count); event_add(&ev, &tv); event_dispatch(); event_del(&ev); } static void test_persistent_timeout_jump(void *ptr) { struct basic_test_data *data = ptr; struct event ev; int count = 0; struct timeval msec100 = { 0, 100 * 1000 }; struct timeval msec50 = { 0, 50 * 1000 }; event_assign(&ev, data->base, -1, EV_PERSIST, periodic_timeout_cb, &count); event_add(&ev, &msec100); /* Wait for a bit */ #ifdef _WIN32 Sleep(1000); #else sleep(1); #endif event_base_loopexit(data->base, &msec50); event_base_dispatch(data->base); tt_int_op(count, ==, 1); end: event_del(&ev); } struct persist_active_timeout_called { int n; short events[16]; struct timeval tvs[16]; }; static void activate_cb(evutil_socket_t fd, short event, void *arg) { struct event *ev = arg; event_active(ev, EV_READ, 1); } static void persist_active_timeout_cb(evutil_socket_t fd, short event, void *arg) { struct persist_active_timeout_called *c = arg; if (c->n < 15) { c->events[c->n] = event; evutil_gettimeofday(&c->tvs[c->n], NULL); ++c->n; } } static void test_persistent_active_timeout(void *ptr) { struct timeval tv, tv2, tv_exit, start; struct event ev; struct persist_active_timeout_called res; struct basic_test_data *data = ptr; struct event_base *base = data->base; memset(&res, 0, sizeof(res)); tv.tv_sec = 0; tv.tv_usec = 200 * 1000; event_assign(&ev, base, -1, EV_TIMEOUT|EV_PERSIST, persist_active_timeout_cb, &res); event_add(&ev, &tv); tv2.tv_sec = 0; tv2.tv_usec = 100 * 1000; event_base_once(base, -1, EV_TIMEOUT, activate_cb, &ev, &tv2); tv_exit.tv_sec = 0; tv_exit.tv_usec = 600 * 1000; event_base_loopexit(base, &tv_exit); event_base_assert_ok(base); evutil_gettimeofday(&start, NULL); event_base_dispatch(base); event_base_assert_ok(base); tt_int_op(res.n, ==, 3); tt_int_op(res.events[0], ==, EV_READ); tt_int_op(res.events[1], ==, EV_TIMEOUT); tt_int_op(res.events[2], ==, EV_TIMEOUT); test_timeval_diff_eq(&start, &res.tvs[0], 100); test_timeval_diff_eq(&start, &res.tvs[1], 300); test_timeval_diff_eq(&start, &res.tvs[2], 500); end: event_del(&ev); } struct common_timeout_info { struct event ev; struct timeval called_at; int which; int count; }; static void common_timeout_cb(evutil_socket_t fd, short event, void *arg) { struct common_timeout_info *ti = arg; ++ti->count; evutil_gettimeofday(&ti->called_at, NULL); if (ti->count >= 6) event_del(&ti->ev); } static void test_common_timeout(void *ptr) { struct basic_test_data *data = ptr; struct event_base *base = data->base; int i; struct common_timeout_info info[100]; struct timeval now; struct timeval tmp_100_ms = { 0, 100*1000 }; struct timeval tmp_200_ms = { 0, 200*1000 }; const struct timeval *ms_100, *ms_200; ms_100 = event_base_init_common_timeout(base, &tmp_100_ms); ms_200 = event_base_init_common_timeout(base, &tmp_200_ms); tt_assert(ms_100); tt_assert(ms_200); tt_ptr_op(event_base_init_common_timeout(base, &tmp_200_ms), ==, ms_200); tt_int_op(ms_100->tv_sec, ==, 0); tt_int_op(ms_200->tv_sec, ==, 0); tt_int_op(ms_100->tv_usec, ==, 100000|0x50000000); tt_int_op(ms_200->tv_usec, ==, 200000|0x50100000); memset(info, 0, sizeof(info)); for (i=0; i<100; ++i) { info[i].which = i; event_assign(&info[i].ev, base, -1, EV_TIMEOUT|EV_PERSIST, common_timeout_cb, &info[i]); if (i % 2) { event_add(&info[i].ev, ms_100); } else { event_add(&info[i].ev, ms_200); } } event_base_assert_ok(base); event_base_dispatch(base); evutil_gettimeofday(&now, NULL); event_base_assert_ok(base); for (i=0; i<10; ++i) { struct timeval tmp; int ms_diff; tt_int_op(info[i].count, ==, 6); evutil_timersub(&now, &info[i].called_at, &tmp); ms_diff = tmp.tv_usec/1000 + tmp.tv_sec*1000; if (i % 2) { tt_int_op(ms_diff, >, 500); tt_int_op(ms_diff, <, 700); } else { tt_int_op(ms_diff, >, -100); tt_int_op(ms_diff, <, 100); } } /* Make sure we can free the base with some events in. */ for (i=0; i<100; ++i) { if (i % 2) { event_add(&info[i].ev, ms_100); } else { event_add(&info[i].ev, ms_200); } } end: event_base_free(data->base); /* need to do this here before info is * out-of-scope */ data->base = NULL; } #ifndef WIN32 static void signal_cb(evutil_socket_t fd, short event, void *arg); #define current_base event_global_current_base_ extern struct event_base *current_base; static void child_signal_cb(evutil_socket_t fd, short event, void *arg) { struct timeval tv; int *pint = arg; *pint = 1; tv.tv_usec = 500000; tv.tv_sec = 0; event_loopexit(&tv); } static void test_fork(void) { int status, got_sigchld = 0; struct event ev, sig_ev; pid_t pid; setup_test("After fork: "); tt_assert(current_base); evthread_make_base_notifiable(current_base); if (write(pair[0], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); } event_set(&ev, pair[1], EV_READ, simple_read_cb, &ev); if (event_add(&ev, NULL) == -1) exit(1); evsignal_set(&sig_ev, SIGCHLD, child_signal_cb, &got_sigchld); evsignal_add(&sig_ev, NULL); event_base_assert_ok(current_base); TT_BLATHER(("Before fork")); if ((pid = regress_fork()) == 0) { /* in the child */ TT_BLATHER(("In child, before reinit")); event_base_assert_ok(current_base); if (event_reinit(current_base) == -1) { fprintf(stdout, "FAILED (reinit)\n"); exit(1); } TT_BLATHER(("After reinit")); event_base_assert_ok(current_base); TT_BLATHER(("After assert-ok")); evsignal_del(&sig_ev); called = 0; event_dispatch(); event_base_free(current_base); /* we do not send an EOF; simple_read_cb requires an EOF * to set test_ok. we just verify that the callback was * called. */ exit(test_ok != 0 || called != 2 ? -2 : 76); } /* wait for the child to read the data */ sleep(1); if (write(pair[0], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); } TT_BLATHER(("Before waitpid")); if (waitpid(pid, &status, 0) == -1) { fprintf(stdout, "FAILED (fork)\n"); exit(1); } TT_BLATHER(("After waitpid")); if (WEXITSTATUS(status) != 76) { fprintf(stdout, "FAILED (exit): %d\n", WEXITSTATUS(status)); exit(1); } /* test that the current event loop still works */ if (write(pair[0], TEST1, strlen(TEST1)+1) < 0) { fprintf(stderr, "%s: write\n", __func__); } shutdown(pair[0], SHUT_WR); event_dispatch(); if (!got_sigchld) { fprintf(stdout, "FAILED (sigchld)\n"); exit(1); } evsignal_del(&sig_ev); end: cleanup_test(); } static void signal_cb_sa(int sig) { test_ok = 2; } static void signal_cb(evutil_socket_t fd, short event, void *arg) { struct event *ev = arg; evsignal_del(ev); test_ok = 1; } static void test_simplesignal(void) { struct event ev; struct itimerval itv; setup_test("Simple signal: "); evsignal_set(&ev, SIGALRM, signal_cb, &ev); evsignal_add(&ev, NULL); /* find bugs in which operations are re-ordered */ evsignal_del(&ev); evsignal_add(&ev, NULL); memset(&itv, 0, sizeof(itv)); itv.it_value.tv_sec = 1; if (setitimer(ITIMER_REAL, &itv, NULL) == -1) goto skip_simplesignal; event_dispatch(); skip_simplesignal: if (evsignal_del(&ev) == -1) test_ok = 0; cleanup_test(); } static void test_multiplesignal(void) { struct event ev_one, ev_two; struct itimerval itv; setup_test("Multiple signal: "); evsignal_set(&ev_one, SIGALRM, signal_cb, &ev_one); evsignal_add(&ev_one, NULL); evsignal_set(&ev_two, SIGALRM, signal_cb, &ev_two); evsignal_add(&ev_two, NULL); memset(&itv, 0, sizeof(itv)); itv.it_value.tv_sec = 1; if (setitimer(ITIMER_REAL, &itv, NULL) == -1) goto skip_simplesignal; event_dispatch(); skip_simplesignal: if (evsignal_del(&ev_one) == -1) test_ok = 0; if (evsignal_del(&ev_two) == -1) test_ok = 0; cleanup_test(); } static void test_immediatesignal(void) { struct event ev; test_ok = 0; evsignal_set(&ev, SIGUSR1, signal_cb, &ev); evsignal_add(&ev, NULL); raise(SIGUSR1); event_loop(EVLOOP_NONBLOCK); evsignal_del(&ev); cleanup_test(); } static void test_signal_dealloc(void) { /* make sure that evsignal_event is event_del'ed and pipe closed */ struct event ev; struct event_base *base = event_init(); evsignal_set(&ev, SIGUSR1, signal_cb, &ev); evsignal_add(&ev, NULL); evsignal_del(&ev); event_base_free(base); /* If we got here without asserting, we're fine. */ test_ok = 1; cleanup_test(); } static void test_signal_pipeloss(void) { /* make sure that the base1 pipe is closed correctly. */ struct event_base *base1, *base2; int pipe1; test_ok = 0; base1 = event_init(); pipe1 = base1->sig.ev_signal_pair[0]; base2 = event_init(); event_base_free(base2); event_base_free(base1); if (close(pipe1) != -1 || errno!=EBADF) { /* fd must be closed, so second close gives -1, EBADF */ printf("signal pipe not closed. "); test_ok = 0; } else { test_ok = 1; } cleanup_test(); } /* * make two bases to catch signals, use both of them. this only works * for event mechanisms that use our signal pipe trick. kqueue handles * signals internally, and all interested kqueues get all the signals. */ static void test_signal_switchbase(void) { struct event ev1, ev2; struct event_base *base1, *base2; int is_kqueue; test_ok = 0; base1 = event_init(); base2 = event_init(); is_kqueue = !strcmp(event_get_method(),"kqueue"); evsignal_set(&ev1, SIGUSR1, signal_cb, &ev1); evsignal_set(&ev2, SIGUSR1, signal_cb, &ev2); if (event_base_set(base1, &ev1) || event_base_set(base2, &ev2) || event_add(&ev1, NULL) || event_add(&ev2, NULL)) { fprintf(stderr, "%s: cannot set base, add\n", __func__); exit(1); } tt_ptr_op(event_get_base(&ev1), ==, base1); tt_ptr_op(event_get_base(&ev2), ==, base2); test_ok = 0; /* can handle signal before loop is called */ raise(SIGUSR1); event_base_loop(base2, EVLOOP_NONBLOCK); if (is_kqueue) { if (!test_ok) goto end; test_ok = 0; } event_base_loop(base1, EVLOOP_NONBLOCK); if (test_ok && !is_kqueue) { test_ok = 0; /* set base1 to handle signals */ event_base_loop(base1, EVLOOP_NONBLOCK); raise(SIGUSR1); event_base_loop(base1, EVLOOP_NONBLOCK); event_base_loop(base2, EVLOOP_NONBLOCK); } end: event_base_free(base1); event_base_free(base2); cleanup_test(); } /* * assert that a signal event removed from the event queue really is * removed - with no possibility of it's parent handler being fired. */ static void test_signal_assert(void) { struct event ev; struct event_base *base = event_init(); test_ok = 0; /* use SIGCONT so we don't kill ourselves when we signal to nowhere */ evsignal_set(&ev, SIGCONT, signal_cb, &ev); evsignal_add(&ev, NULL); /* * if evsignal_del() fails to reset the handler, it's current handler * will still point to evsig_handler(). */ evsignal_del(&ev); raise(SIGCONT); #if 0 /* only way to verify we were in evsig_handler() */ /* XXXX Now there's no longer a good way. */ if (base->sig.evsig_caught) test_ok = 0; else test_ok = 1; #else test_ok = 1; #endif event_base_free(base); cleanup_test(); return; } /* * assert that we restore our previous signal handler properly. */ static void test_signal_restore(void) { struct event ev; struct event_base *base = event_init(); #ifdef _EVENT_HAVE_SIGACTION struct sigaction sa; #endif test_ok = 0; #ifdef _EVENT_HAVE_SIGACTION sa.sa_handler = signal_cb_sa; sa.sa_flags = 0x0; sigemptyset(&sa.sa_mask); if (sigaction(SIGUSR1, &sa, NULL) == -1) goto out; #else if (signal(SIGUSR1, signal_cb_sa) == SIG_ERR) goto out; #endif evsignal_set(&ev, SIGUSR1, signal_cb, &ev); evsignal_add(&ev, NULL); evsignal_del(&ev); raise(SIGUSR1); /* 1 == signal_cb, 2 == signal_cb_sa, we want our previous handler */ if (test_ok != 2) test_ok = 0; out: event_base_free(base); cleanup_test(); return; } static void signal_cb_swp(int sig, short event, void *arg) { called++; if (called < 5) raise(sig); else event_loopexit(NULL); } static void timeout_cb_swp(evutil_socket_t fd, short event, void *arg) { if (called == -1) { struct timeval tv = {5, 0}; called = 0; evtimer_add((struct event *)arg, &tv); raise(SIGUSR1); return; } test_ok = 0; event_loopexit(NULL); } static void test_signal_while_processing(void) { struct event_base *base = event_init(); struct event ev, ev_timer; struct timeval tv = {0, 0}; setup_test("Receiving a signal while processing other signal: "); called = -1; test_ok = 1; signal_set(&ev, SIGUSR1, signal_cb_swp, NULL); signal_add(&ev, NULL); evtimer_set(&ev_timer, timeout_cb_swp, &ev_timer); evtimer_add(&ev_timer, &tv); event_dispatch(); event_base_free(base); cleanup_test(); return; } #endif static void test_free_active_base(void *ptr) { struct basic_test_data *data = ptr; struct event_base *base1; struct event ev1; base1 = event_init(); if (base1) { event_assign(&ev1, base1, data->pair[1], EV_READ, dummy_read_cb, NULL); event_add(&ev1, NULL); event_base_free(base1); /* should not crash */ } else { tt_fail_msg("failed to create event_base for test"); } base1 = event_init(); tt_assert(base1); event_assign(&ev1, base1, 0, 0, dummy_read_cb, NULL); event_active(&ev1, EV_READ, 1); event_base_free(base1); end: ; } static void test_manipulate_active_events(void *ptr) { struct basic_test_data *data = ptr; struct event_base *base = data->base; struct event ev1; event_assign(&ev1, base, -1, EV_TIMEOUT, dummy_read_cb, NULL); /* Make sure an active event is pending. */ event_active(&ev1, EV_READ, 1); tt_int_op(event_pending(&ev1, EV_READ|EV_TIMEOUT|EV_WRITE, NULL), ==, EV_READ); /* Make sure that activating an event twice works. */ event_active(&ev1, EV_WRITE, 1); tt_int_op(event_pending(&ev1, EV_READ|EV_TIMEOUT|EV_WRITE, NULL), ==, EV_READ|EV_WRITE); end: event_del(&ev1); } static void test_bad_assign(void *ptr) { struct event ev; int r; /* READ|SIGNAL is not allowed */ r = event_assign(&ev, NULL, -1, EV_SIGNAL|EV_READ, dummy_read_cb, NULL); tt_int_op(r,==,-1); end: ; } static int reentrant_cb_run = 0; static void bad_reentrant_run_loop_cb(evutil_socket_t fd, short what, void *ptr) { struct event_base *base = ptr; int r; reentrant_cb_run = 1; /* This reentrant call to event_base_loop should be detected and * should fail */ r = event_base_loop(base, 0); tt_int_op(r, ==, -1); end: ; } static void test_bad_reentrant(void *ptr) { struct basic_test_data *data = ptr; struct event_base *base = data->base; struct event ev; int r; event_assign(&ev, base, -1, 0, bad_reentrant_run_loop_cb, base); event_active(&ev, EV_WRITE, 1); r = event_base_loop(base, 0); tt_int_op(r, ==, 1); tt_int_op(reentrant_cb_run, ==, 1); end: ; } static void test_event_base_new(void *ptr) { struct basic_test_data *data = ptr; struct event_base *base = 0; struct event ev1; struct basic_cb_args args; int towrite = (int)strlen(TEST1)+1; int len = write(data->pair[0], TEST1, towrite); if (len < 0) tt_abort_perror("initial write"); else if (len != towrite) tt_abort_printf(("initial write fell short (%d of %d bytes)", len, towrite)); if (shutdown(data->pair[0], SHUT_WR)) tt_abort_perror("initial write shutdown"); base = event_base_new(); if (!base) tt_abort_msg("failed to create event base"); args.eb = base; args.ev = &ev1; args.callcount = 0; event_assign(&ev1, base, data->pair[1], EV_READ|EV_PERSIST, basic_read_cb, &args); if (event_add(&ev1, NULL)) tt_abort_perror("initial event_add"); if (event_base_loop(base, 0)) tt_abort_msg("unsuccessful exit from event loop"); end: if (base) event_base_free(base); } static void test_loopexit(void) { struct timeval tv, tv_start, tv_end; struct event ev; setup_test("Loop exit: "); tv.tv_usec = 0; tv.tv_sec = 60*60*24; evtimer_set(&ev, timeout_cb, NULL); evtimer_add(&ev, &tv); tv.tv_usec = 0; tv.tv_sec = 1; event_loopexit(&tv); evutil_gettimeofday(&tv_start, NULL); event_dispatch(); evutil_gettimeofday(&tv_end, NULL); evutil_timersub(&tv_end, &tv_start, &tv_end); evtimer_del(&ev); tt_assert(event_base_got_exit(global_base)); tt_assert(!event_base_got_break(global_base)); if (tv.tv_sec < 2) test_ok = 1; end: cleanup_test(); } static void test_loopexit_multiple(void) { struct timeval tv; struct event_base *base; setup_test("Loop Multiple exit: "); base = event_base_new(); tv.tv_usec = 0; tv.tv_sec = 1; event_base_loopexit(base, &tv); tv.tv_usec = 0; tv.tv_sec = 2; event_base_loopexit(base, &tv); event_base_dispatch(base); tt_assert(event_base_got_exit(base)); tt_assert(!event_base_got_break(base)); event_base_free(base); test_ok = 1; end: cleanup_test(); } static void break_cb(evutil_socket_t fd, short events, void *arg) { test_ok = 1; event_loopbreak(); } static void fail_cb(evutil_socket_t fd, short events, void *arg) { test_ok = 0; } static void test_loopbreak(void) { struct event ev1, ev2; struct timeval tv; setup_test("Loop break: "); tv.tv_sec = 0; tv.tv_usec = 0; evtimer_set(&ev1, break_cb, NULL); evtimer_add(&ev1, &tv); evtimer_set(&ev2, fail_cb, NULL); evtimer_add(&ev2, &tv); event_dispatch(); tt_assert(!event_base_got_exit(global_base)); tt_assert(event_base_got_break(global_base)); evtimer_del(&ev1); evtimer_del(&ev2); end: cleanup_test(); } static struct event *readd_test_event_last_added = NULL; static void re_add_read_cb(evutil_socket_t fd, short event, void *arg) { char buf[256]; struct event *ev_other = arg; readd_test_event_last_added = ev_other; if (read(fd, buf, sizeof(buf)) < 0) { tt_fail_perror("read"); } event_add(ev_other, NULL); ++test_ok; } static void test_nonpersist_readd(void) { struct event ev1, ev2; setup_test("Re-add nonpersistent events: "); event_set(&ev1, pair[0], EV_READ, re_add_read_cb, &ev2); event_set(&ev2, pair[1], EV_READ, re_add_read_cb, &ev1); if (write(pair[0], "Hello", 5) < 0) { tt_fail_perror("write(pair[0])"); } if (write(pair[1], "Hello", 5) < 0) { tt_fail_perror("write(pair[1])\n"); } if (event_add(&ev1, NULL) == -1 || event_add(&ev2, NULL) == -1) { test_ok = 0; } if (test_ok != 0) exit(1); event_loop(EVLOOP_ONCE); if (test_ok != 2) exit(1); /* At this point, we executed both callbacks. Whichever one got * called first added the second, but the second then immediately got * deleted before its callback was called. At this point, though, it * re-added the first. */ if (!readd_test_event_last_added) { test_ok = 0; } else if (readd_test_event_last_added == &ev1) { if (!event_pending(&ev1, EV_READ, NULL) || event_pending(&ev2, EV_READ, NULL)) test_ok = 0; } else { if (event_pending(&ev1, EV_READ, NULL) || !event_pending(&ev2, EV_READ, NULL)) test_ok = 0; } event_del(&ev1); event_del(&ev2); cleanup_test(); } struct test_pri_event { struct event ev; int count; }; static void test_priorities_cb(evutil_socket_t fd, short what, void *arg) { struct test_pri_event *pri = arg; struct timeval tv; if (pri->count == 3) { event_loopexit(NULL); return; } pri->count++; evutil_timerclear(&tv); event_add(&pri->ev, &tv); } static void test_priorities_impl(int npriorities) { struct test_pri_event one, two; struct timeval tv; TT_BLATHER(("Testing Priorities %d: ", npriorities)); event_base_priority_init(global_base, npriorities); memset(&one, 0, sizeof(one)); memset(&two, 0, sizeof(two)); timeout_set(&one.ev, test_priorities_cb, &one); if (event_priority_set(&one.ev, 0) == -1) { fprintf(stderr, "%s: failed to set priority", __func__); exit(1); } timeout_set(&two.ev, test_priorities_cb, &two); if (event_priority_set(&two.ev, npriorities - 1) == -1) { fprintf(stderr, "%s: failed to set priority", __func__); exit(1); } evutil_timerclear(&tv); if (event_add(&one.ev, &tv) == -1) exit(1); if (event_add(&two.ev, &tv) == -1) exit(1); event_dispatch(); event_del(&one.ev); event_del(&two.ev); if (npriorities == 1) { if (one.count == 3 && two.count == 3) test_ok = 1; } else if (npriorities == 2) { /* Two is called once because event_loopexit is priority 1 */ if (one.count == 3 && two.count == 1) test_ok = 1; } else { if (one.count == 3 && two.count == 0) test_ok = 1; } } static void test_priorities(void) { test_priorities_impl(1); if (test_ok) test_priorities_impl(2); if (test_ok) test_priorities_impl(3); } /* priority-active-inversion: activate a higher-priority event, and make sure * it keeps us from running a lower-priority event first. */ static int n_pai_calls = 0; static struct event pai_events[3]; static void prio_active_inversion_cb(evutil_socket_t fd, short what, void *arg) { int *call_order = arg; *call_order = n_pai_calls++; if (n_pai_calls == 1) { /* This should activate later, even though it shares a priority with us. */ event_active(&pai_events[1], EV_READ, 1); /* This should activate next, since its priority is higher, even though we activated it second. */ event_active(&pai_events[2], EV_TIMEOUT, 1); } } static void test_priority_active_inversion(void *data_) { struct basic_test_data *data = data_; struct event_base *base = data->base; int call_order[3]; int i; tt_int_op(event_base_priority_init(base, 8), ==, 0); n_pai_calls = 0; memset(call_order, 0, sizeof(call_order)); for (i=0;i<3;++i) { event_assign(&pai_events[i], data->base, -1, 0, prio_active_inversion_cb, &call_order[i]); } event_priority_set(&pai_events[0], 4); event_priority_set(&pai_events[1], 4); event_priority_set(&pai_events[2], 0); event_active(&pai_events[0], EV_WRITE, 1); event_base_dispatch(base); tt_int_op(n_pai_calls, ==, 3); tt_int_op(call_order[0], ==, 0); tt_int_op(call_order[1], ==, 2); tt_int_op(call_order[2], ==, 1); end: ; } static void test_multiple_cb(evutil_socket_t fd, short event, void *arg) { if (event & EV_READ) test_ok |= 1; else if (event & EV_WRITE) test_ok |= 2; } static void test_multiple_events_for_same_fd(void) { struct event e1, e2; setup_test("Multiple events for same fd: "); event_set(&e1, pair[0], EV_READ, test_multiple_cb, NULL); event_add(&e1, NULL); event_set(&e2, pair[0], EV_WRITE, test_multiple_cb, NULL); event_add(&e2, NULL); event_loop(EVLOOP_ONCE); event_del(&e2); if (write(pair[1], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); } event_loop(EVLOOP_ONCE); event_del(&e1); if (test_ok != 3) test_ok = 0; cleanup_test(); } int evtag_decode_int(ev_uint32_t *pnumber, struct evbuffer *evbuf); int evtag_decode_int64(ev_uint64_t *pnumber, struct evbuffer *evbuf); int evtag_encode_tag(struct evbuffer *evbuf, ev_uint32_t number); int evtag_decode_tag(ev_uint32_t *pnumber, struct evbuffer *evbuf); static void read_once_cb(evutil_socket_t fd, short event, void *arg) { char buf[256]; int len; len = read(fd, buf, sizeof(buf)); if (called) { test_ok = 0; } else if (len) { /* Assumes global pair[0] can be used for writing */ if (write(pair[0], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); test_ok = 0; } else { test_ok = 1; } } called++; } static void test_want_only_once(void) { struct event ev; struct timeval tv; /* Very simple read test */ setup_test("Want read only once: "); if (write(pair[0], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); } /* Setup the loop termination */ evutil_timerclear(&tv); tv.tv_sec = 1; event_loopexit(&tv); event_set(&ev, pair[1], EV_READ, read_once_cb, &ev); if (event_add(&ev, NULL) == -1) exit(1); event_dispatch(); cleanup_test(); } #define TEST_MAX_INT 6 static void evtag_int_test(void *ptr) { struct evbuffer *tmp = evbuffer_new(); ev_uint32_t integers[TEST_MAX_INT] = { 0xaf0, 0x1000, 0x1, 0xdeadbeef, 0x00, 0xbef000 }; ev_uint32_t integer; ev_uint64_t big_int; int i; evtag_init(); for (i = 0; i < TEST_MAX_INT; i++) { int oldlen, newlen; oldlen = (int)EVBUFFER_LENGTH(tmp); evtag_encode_int(tmp, integers[i]); newlen = (int)EVBUFFER_LENGTH(tmp); TT_BLATHER(("encoded 0x%08x with %d bytes", (unsigned)integers[i], newlen - oldlen)); big_int = integers[i]; big_int *= 1000000000; /* 1 billion */ evtag_encode_int64(tmp, big_int); } for (i = 0; i < TEST_MAX_INT; i++) { tt_int_op(evtag_decode_int(&integer, tmp), !=, -1); tt_uint_op(integer, ==, integers[i]); tt_int_op(evtag_decode_int64(&big_int, tmp), !=, -1); tt_assert((big_int / 1000000000) == integers[i]); } tt_uint_op(EVBUFFER_LENGTH(tmp), ==, 0); end: evbuffer_free(tmp); } static void evtag_fuzz(void *ptr) { u_char buffer[4096]; struct evbuffer *tmp = evbuffer_new(); struct timeval tv; int i, j; int not_failed = 0; evtag_init(); for (j = 0; j < 100; j++) { for (i = 0; i < (int)sizeof(buffer); i++) buffer[i] = rand(); evbuffer_drain(tmp, -1); evbuffer_add(tmp, buffer, sizeof(buffer)); if (evtag_unmarshal_timeval(tmp, 0, &tv) != -1) not_failed++; } /* The majority of decodes should fail */ tt_int_op(not_failed, <, 10); /* Now insert some corruption into the tag length field */ evbuffer_drain(tmp, -1); evutil_timerclear(&tv); tv.tv_sec = 1; evtag_marshal_timeval(tmp, 0, &tv); evbuffer_add(tmp, buffer, sizeof(buffer)); ((char *)EVBUFFER_DATA(tmp))[1] = '\xff'; if (evtag_unmarshal_timeval(tmp, 0, &tv) != -1) { tt_abort_msg("evtag_unmarshal_timeval should have failed"); } end: evbuffer_free(tmp); } static void evtag_tag_encoding(void *ptr) { struct evbuffer *tmp = evbuffer_new(); ev_uint32_t integers[TEST_MAX_INT] = { 0xaf0, 0x1000, 0x1, 0xdeadbeef, 0x00, 0xbef000 }; ev_uint32_t integer; int i; evtag_init(); for (i = 0; i < TEST_MAX_INT; i++) { int oldlen, newlen; oldlen = (int)EVBUFFER_LENGTH(tmp); evtag_encode_tag(tmp, integers[i]); newlen = (int)EVBUFFER_LENGTH(tmp); TT_BLATHER(("encoded 0x%08x with %d bytes", (unsigned)integers[i], newlen - oldlen)); } for (i = 0; i < TEST_MAX_INT; i++) { tt_int_op(evtag_decode_tag(&integer, tmp), !=, -1); tt_uint_op(integer, ==, integers[i]); } tt_uint_op(EVBUFFER_LENGTH(tmp), ==, 0); end: evbuffer_free(tmp); } static void evtag_test_peek(void *ptr) { struct evbuffer *tmp = evbuffer_new(); ev_uint32_t u32; evtag_marshal_int(tmp, 30, 0); evtag_marshal_string(tmp, 40, "Hello world"); tt_int_op(evtag_peek(tmp, &u32), ==, 1); tt_int_op(u32, ==, 30); tt_int_op(evtag_peek_length(tmp, &u32), ==, 0); tt_int_op(u32, ==, 1+1+1); tt_int_op(evtag_consume(tmp), ==, 0); tt_int_op(evtag_peek(tmp, &u32), ==, 1); tt_int_op(u32, ==, 40); tt_int_op(evtag_peek_length(tmp, &u32), ==, 0); tt_int_op(u32, ==, 1+1+11); tt_int_op(evtag_payload_length(tmp, &u32), ==, 0); tt_int_op(u32, ==, 11); end: evbuffer_free(tmp); } static void test_methods(void *ptr) { const char **methods = event_get_supported_methods(); struct event_config *cfg = NULL; struct event_base *base = NULL; const char *backend; int n_methods = 0; tt_assert(methods); backend = methods[0]; while (*methods != NULL) { TT_BLATHER(("Support method: %s", *methods)); ++methods; ++n_methods; } cfg = event_config_new(); assert(cfg != NULL); tt_int_op(event_config_avoid_method(cfg, backend), ==, 0); event_config_set_flag(cfg, EVENT_BASE_FLAG_IGNORE_ENV); base = event_base_new_with_config(cfg); if (n_methods > 1) { tt_assert(base); tt_str_op(backend, !=, event_base_get_method(base)); } else { tt_assert(base == NULL); } end: if (base) event_base_free(base); if (cfg) event_config_free(cfg); } static void test_version(void *arg) { const char *vstr; ev_uint32_t vint; int major, minor, patch, n; vstr = event_get_version(); vint = event_get_version_number(); tt_assert(vstr); tt_assert(vint); tt_str_op(vstr, ==, LIBEVENT_VERSION); tt_int_op(vint, ==, LIBEVENT_VERSION_NUMBER); n = sscanf(vstr, "%d.%d.%d", &major, &minor, &patch); tt_assert(3 == n); tt_int_op((vint&0xffffff00), ==, ((major<<24)|(minor<<16)|(patch<<8))); end: ; } static void test_base_features(void *arg) { struct event_base *base = NULL; struct event_config *cfg = NULL; cfg = event_config_new(); tt_assert(0 == event_config_require_features(cfg, EV_FEATURE_ET)); base = event_base_new_with_config(cfg); if (base) { tt_int_op(EV_FEATURE_ET, ==, event_base_get_features(base) & EV_FEATURE_ET); } else { base = event_base_new(); tt_int_op(0, ==, event_base_get_features(base) & EV_FEATURE_ET); } end: if (base) event_base_free(base); if (cfg) event_config_free(cfg); } #ifdef _EVENT_HAVE_SETENV #define SETENV_OK #elif !defined(_EVENT_HAVE_SETENV) && defined(_EVENT_HAVE_PUTENV) static void setenv(const char *k, const char *v, int _o) { char b[256]; evutil_snprintf(b, sizeof(b), "%s=%s",k,v); putenv(b); } #define SETENV_OK #endif #ifdef _EVENT_HAVE_UNSETENV #define UNSETENV_OK #elif !defined(_EVENT_HAVE_UNSETENV) && defined(_EVENT_HAVE_PUTENV) static void unsetenv(const char *k) { char b[256]; evutil_snprintf(b, sizeof(b), "%s=",k); putenv(b); } #define UNSETENV_OK #endif #if defined(SETENV_OK) && defined(UNSETENV_OK) static void methodname_to_envvar(const char *mname, char *buf, size_t buflen) { char *cp; evutil_snprintf(buf, buflen, "EVENT_NO%s", mname); for (cp = buf; *cp; ++cp) { *cp = EVUTIL_TOUPPER(*cp); } } #endif static void test_base_environ(void *arg) { struct event_base *base = NULL; struct event_config *cfg = NULL; #if defined(SETENV_OK) && defined(UNSETENV_OK) const char **basenames; int i, n_methods=0; char varbuf[128]; const char *defaultname, *ignoreenvname; /* See if unsetenv works before we rely on it. */ setenv("EVENT_NOWAFFLES", "1", 1); unsetenv("EVENT_NOWAFFLES"); if (getenv("EVENT_NOWAFFLES") != NULL) { #ifndef _EVENT_HAVE_UNSETENV TT_DECLARE("NOTE", ("Can't fake unsetenv; skipping test")); #else TT_DECLARE("NOTE", ("unsetenv doesn't work; skipping test")); #endif tt_skip(); } basenames = event_get_supported_methods(); for (i = 0; basenames[i]; ++i) { methodname_to_envvar(basenames[i], varbuf, sizeof(varbuf)); unsetenv(varbuf); ++n_methods; } base = event_base_new(); tt_assert(base); defaultname = event_base_get_method(base); TT_BLATHER(("default is <%s>", defaultname)); event_base_free(base); base = NULL; /* Can we disable the method with EVENT_NOfoo ? */ if (!strcmp(defaultname, "epoll (with changelist)")) { setenv("EVENT_NOEPOLL", "1", 1); ignoreenvname = "epoll"; } else { methodname_to_envvar(defaultname, varbuf, sizeof(varbuf)); setenv(varbuf, "1", 1); ignoreenvname = defaultname; } /* Use an empty cfg rather than NULL so a failure doesn't exit() */ cfg = event_config_new(); base = event_base_new_with_config(cfg); event_config_free(cfg); cfg = NULL; if (n_methods == 1) { tt_assert(!base); } else { tt_assert(base); tt_str_op(defaultname, !=, event_base_get_method(base)); event_base_free(base); base = NULL; } /* Can we disable looking at the environment with IGNORE_ENV ? */ cfg = event_config_new(); event_config_set_flag(cfg, EVENT_BASE_FLAG_IGNORE_ENV); base = event_base_new_with_config(cfg); tt_assert(base); tt_str_op(ignoreenvname, ==, event_base_get_method(base)); #else tt_skip(); #endif end: if (base) event_base_free(base); if (cfg) event_config_free(cfg); } static void read_called_once_cb(evutil_socket_t fd, short event, void *arg) { tt_int_op(event, ==, EV_READ); called += 1; end: ; } static void timeout_called_once_cb(evutil_socket_t fd, short event, void *arg) { tt_int_op(event, ==, EV_TIMEOUT); called += 100; end: ; } static void test_event_once(void *ptr) { struct basic_test_data *data = ptr; struct timeval tv; int r; tv.tv_sec = 0; tv.tv_usec = 50*1000; called = 0; r = event_base_once(data->base, data->pair[0], EV_READ, read_called_once_cb, NULL, NULL); tt_int_op(r, ==, 0); r = event_base_once(data->base, -1, EV_TIMEOUT, timeout_called_once_cb, NULL, &tv); tt_int_op(r, ==, 0); r = event_base_once(data->base, -1, 0, NULL, NULL, NULL); tt_int_op(r, <, 0); if (write(data->pair[1], TEST1, strlen(TEST1)+1) < 0) { tt_fail_perror("write"); } shutdown(data->pair[1], SHUT_WR); event_base_dispatch(data->base); tt_int_op(called, ==, 101); end: ; } static void test_event_pending(void *ptr) { struct basic_test_data *data = ptr; struct event *r=NULL, *w=NULL, *t=NULL; struct timeval tv, now, tv2, diff; tv.tv_sec = 0; tv.tv_usec = 500 * 1000; r = event_new(data->base, data->pair[0], EV_READ, simple_read_cb, NULL); w = event_new(data->base, data->pair[1], EV_WRITE, simple_write_cb, NULL); t = evtimer_new(data->base, timeout_cb, NULL); tt_assert(r); tt_assert(w); tt_assert(t); evutil_gettimeofday(&now, NULL); event_add(r, NULL); event_add(t, &tv); tt_assert( event_pending(r, EV_READ, NULL)); tt_assert(!event_pending(w, EV_WRITE, NULL)); tt_assert(!event_pending(r, EV_WRITE, NULL)); tt_assert( event_pending(r, EV_READ|EV_WRITE, NULL)); tt_assert(!event_pending(r, EV_TIMEOUT, NULL)); tt_assert( event_pending(t, EV_TIMEOUT, NULL)); tt_assert( event_pending(t, EV_TIMEOUT, &tv2)); tt_assert(evutil_timercmp(&tv2, &now, >)); evutil_timeradd(&now, &tv, &tv); evutil_timersub(&tv2, &tv, &diff); tt_int_op(diff.tv_sec, ==, 0); tt_int_op(labs(diff.tv_usec), <, 1000); end: if (r) { event_del(r); event_free(r); } if (w) { event_del(w); event_free(w); } if (t) { event_del(t); event_free(t); } } #ifndef WIN32 /* You can't do this test on windows, since dup2 doesn't work on sockets */ static void dfd_cb(evutil_socket_t fd, short e, void *data) { *(int*)data = (int)e; } /* Regression test for our workaround for a fun epoll/linux related bug * where fd2 = dup(fd1); add(fd2); close(fd2); dup2(fd1,fd2); add(fd2) * will get you an EEXIST */ static void test_dup_fd(void *arg) { struct basic_test_data *data = arg; struct event_base *base = data->base; struct event *ev1=NULL, *ev2=NULL; int fd, dfd=-1; int ev1_got, ev2_got; tt_int_op(write(data->pair[0], "Hello world", strlen("Hello world")), >, 0); fd = data->pair[1]; dfd = dup(fd); tt_int_op(dfd, >=, 0); ev1 = event_new(base, fd, EV_READ|EV_PERSIST, dfd_cb, &ev1_got); ev2 = event_new(base, dfd, EV_READ|EV_PERSIST, dfd_cb, &ev2_got); ev1_got = ev2_got = 0; event_add(ev1, NULL); event_add(ev2, NULL); event_base_loop(base, EVLOOP_ONCE); tt_int_op(ev1_got, ==, EV_READ); tt_int_op(ev2_got, ==, EV_READ); /* Now close and delete dfd then dispatch. We need to do the * dispatch here so that when we add it later, we think there * was an intermediate delete. */ close(dfd); event_del(ev2); ev1_got = ev2_got = 0; event_base_loop(base, EVLOOP_ONCE); tt_want_int_op(ev1_got, ==, EV_READ); tt_int_op(ev2_got, ==, 0); /* Re-duplicate the fd. We need to get the same duplicated * value that we closed to provoke the epoll quirk. Also, we * need to change the events to write, or else the old lingering * read event will make the test pass whether the change was * successful or not. */ tt_int_op(dup2(fd, dfd), ==, dfd); event_free(ev2); ev2 = event_new(base, dfd, EV_WRITE|EV_PERSIST, dfd_cb, &ev2_got); event_add(ev2, NULL); ev1_got = ev2_got = 0; event_base_loop(base, EVLOOP_ONCE); tt_want_int_op(ev1_got, ==, EV_READ); tt_int_op(ev2_got, ==, EV_WRITE); end: if (ev1) event_free(ev1); if (ev2) event_free(ev2); if (dfd >= 0) close(dfd); } #endif #ifdef _EVENT_DISABLE_MM_REPLACEMENT static void test_mm_functions(void *arg) { _tinytest_set_test_skipped(); } #else static int check_dummy_mem_ok(void *_mem) { char *mem = _mem; mem -= 16; return !memcmp(mem, "{[]}", 16); } static void * dummy_malloc(size_t len) { char *mem = malloc(len+16); memcpy(mem, "{[]}", 16); return mem+16; } static void * dummy_realloc(void *_mem, size_t len) { char *mem = _mem; if (!mem) return dummy_malloc(len); tt_want(check_dummy_mem_ok(_mem)); mem -= 16; mem = realloc(mem, len+16); return mem+16; } static void dummy_free(void *_mem) { char *mem = _mem; tt_want(check_dummy_mem_ok(_mem)); mem -= 16; free(mem); } static void test_mm_functions(void *arg) { struct event_base *b = NULL; struct event_config *cfg = NULL; event_set_mem_functions(dummy_malloc, dummy_realloc, dummy_free); cfg = event_config_new(); event_config_avoid_method(cfg, "Nonesuch"); b = event_base_new_with_config(cfg); tt_assert(b); tt_assert(check_dummy_mem_ok(b)); end: if (cfg) event_config_free(cfg); if (b) event_base_free(b); } #endif static void many_event_cb(evutil_socket_t fd, short event, void *arg) { int *calledp = arg; *calledp += 1; } static void test_many_events(void *arg) { /* Try 70 events that should all be ready at once. This will * exercise the "resize" code on most of the backends, and will make * sure that we can get past the 64-handle limit of some windows * functions. */ #define MANY 70 struct basic_test_data *data = arg; struct event_base *base = data->base; int one_at_a_time = data->setup_data != NULL; evutil_socket_t sock[MANY]; struct event *ev[MANY]; int called[MANY]; int i; int loopflags = EVLOOP_NONBLOCK, evflags=0; const int is_evport = !strcmp(event_base_get_method(base),"evport"); if (one_at_a_time) { loopflags |= EVLOOP_ONCE; evflags = EV_PERSIST; } memset(sock, 0xff, sizeof(sock)); memset(ev, 0, sizeof(ev)); memset(called, 0, sizeof(called)); if (is_evport && one_at_a_time) { TT_DECLARE("NOTE", ("evport can't pass this in 2.0; skipping\n")); tt_skip(); } for (i = 0; i < MANY; ++i) { /* We need an event that will hit the backend, and that will * be ready immediately. "Send a datagram" is an easy * instance of that. */ sock[i] = socket(AF_INET, SOCK_DGRAM, 0); tt_assert(sock[i] >= 0); called[i] = 0; ev[i] = event_new(base, sock[i], EV_WRITE|evflags, many_event_cb, &called[i]); event_add(ev[i], NULL); if (one_at_a_time) event_base_loop(base, EVLOOP_NONBLOCK|EVLOOP_ONCE); } event_base_loop(base, loopflags); for (i = 0; i < MANY; ++i) { if (one_at_a_time) tt_int_op(called[i], ==, MANY - i + 1); else tt_int_op(called[i], ==, 1); } end: for (i = 0; i < MANY; ++i) { if (ev[i]) event_free(ev[i]); if (sock[i] >= 0) evutil_closesocket(sock[i]); } #undef MANY } static void test_struct_event_size(void *arg) { tt_int_op(event_get_struct_event_size(), <=, sizeof(struct event)); end: ; } struct testcase_t main_testcases[] = { /* Some converted-over tests */ { "methods", test_methods, TT_FORK, NULL, NULL }, { "version", test_version, 0, NULL, NULL }, BASIC(base_features, TT_FORK|TT_NO_LOGS), { "base_environ", test_base_environ, TT_FORK, NULL, NULL }, BASIC(event_base_new, TT_FORK|TT_NEED_SOCKETPAIR), BASIC(free_active_base, TT_FORK|TT_NEED_SOCKETPAIR), BASIC(manipulate_active_events, TT_FORK|TT_NEED_BASE), BASIC(bad_assign, TT_FORK|TT_NEED_BASE|TT_NO_LOGS), BASIC(bad_reentrant, TT_FORK|TT_NEED_BASE|TT_NO_LOGS), LEGACY(persistent_timeout, TT_FORK|TT_NEED_BASE), { "persistent_timeout_jump", test_persistent_timeout_jump, TT_FORK|TT_NEED_BASE, &basic_setup, NULL }, { "persistent_active_timeout", test_persistent_active_timeout, TT_FORK|TT_NEED_BASE, &basic_setup, NULL }, LEGACY(priorities, TT_FORK|TT_NEED_BASE), BASIC(priority_active_inversion, TT_FORK|TT_NEED_BASE), { "common_timeout", test_common_timeout, TT_FORK|TT_NEED_BASE, &basic_setup, NULL }, /* These legacy tests may not all need all of these flags. */ LEGACY(simpleread, TT_ISOLATED), LEGACY(simpleread_multiple, TT_ISOLATED), LEGACY(simplewrite, TT_ISOLATED), { "simpleclose", test_simpleclose, TT_FORK, &basic_setup, NULL }, LEGACY(multiple, TT_ISOLATED), LEGACY(persistent, TT_ISOLATED), LEGACY(combined, TT_ISOLATED), LEGACY(simpletimeout, TT_ISOLATED), LEGACY(loopbreak, TT_ISOLATED), LEGACY(loopexit, TT_ISOLATED), LEGACY(loopexit_multiple, TT_ISOLATED), LEGACY(nonpersist_readd, TT_ISOLATED), LEGACY(multiple_events_for_same_fd, TT_ISOLATED), LEGACY(want_only_once, TT_ISOLATED), { "event_once", test_event_once, TT_ISOLATED, &basic_setup, NULL }, { "event_pending", test_event_pending, TT_ISOLATED, &basic_setup, NULL }, #ifndef WIN32 { "dup_fd", test_dup_fd, TT_ISOLATED, &basic_setup, NULL }, #endif { "mm_functions", test_mm_functions, TT_FORK, NULL, NULL }, { "many_events", test_many_events, TT_ISOLATED, &basic_setup, NULL }, { "many_events_slow_add", test_many_events, TT_ISOLATED, &basic_setup, (void*)1 }, { "struct_event_size", test_struct_event_size, 0, NULL, NULL }, #ifndef WIN32 LEGACY(fork, TT_ISOLATED), #endif END_OF_TESTCASES }; struct testcase_t evtag_testcases[] = { { "int", evtag_int_test, TT_FORK, NULL, NULL }, { "fuzz", evtag_fuzz, TT_FORK, NULL, NULL }, { "encoding", evtag_tag_encoding, TT_FORK, NULL, NULL }, { "peek", evtag_test_peek, 0, NULL, NULL }, END_OF_TESTCASES }; struct testcase_t signal_testcases[] = { #ifndef WIN32 LEGACY(simplesignal, TT_ISOLATED), LEGACY(multiplesignal, TT_ISOLATED), LEGACY(immediatesignal, TT_ISOLATED), LEGACY(signal_dealloc, TT_ISOLATED), LEGACY(signal_pipeloss, TT_ISOLATED), LEGACY(signal_switchbase, TT_ISOLATED|TT_NO_LOGS), LEGACY(signal_restore, TT_ISOLATED), LEGACY(signal_assert, TT_ISOLATED), LEGACY(signal_while_processing, TT_ISOLATED), #endif END_OF_TESTCASES }; dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress.gen.c000644 000765 000024 00000066017 13040635351 023702 0ustar00jstaff000000 000000 /* * Automatically generated from ./regress.rpc * by event_rpcgen.py/0.1. DO NOT EDIT THIS FILE. */ #include #include #include #include #include #include #include #ifdef _EVENT___func__ #define __func__ _EVENT___func__ #endif #include "regress.gen.h" void event_warn(const char *fmt, ...); void event_warnx(const char *fmt, ...); /* * Implementation of msg */ static struct msg_access_ __msg_base = { msg_from_name_assign, msg_from_name_get, msg_to_name_assign, msg_to_name_get, msg_attack_assign, msg_attack_get, msg_run_assign, msg_run_get, msg_run_add, }; struct msg * msg_new(void) { return msg_new_with_arg(NULL); } struct msg * msg_new_with_arg(void *unused) { struct msg *tmp; if ((tmp = malloc(sizeof(struct msg))) == NULL) { event_warn("%s: malloc", __func__); return (NULL); } tmp->base = &__msg_base; tmp->from_name_data = NULL; tmp->from_name_set = 0; tmp->to_name_data = NULL; tmp->to_name_set = 0; tmp->attack_data = NULL; tmp->attack_set = 0; tmp->run_data = NULL; tmp->run_length = 0; tmp->run_num_allocated = 0; tmp->run_set = 0; return (tmp); } static int msg_run_expand_to_hold_more(struct msg *msg) { int tobe_allocated = msg->run_num_allocated; struct run** new_data = NULL; tobe_allocated = !tobe_allocated ? 1 : tobe_allocated << 1; new_data = (struct run**) realloc(msg->run_data, tobe_allocated * sizeof(struct run*)); if (new_data == NULL) return -1; msg->run_data = new_data; msg->run_num_allocated = tobe_allocated; return 0;} struct run* msg_run_add(struct msg *msg) { if (++msg->run_length >= msg->run_num_allocated) { if (msg_run_expand_to_hold_more(msg)<0) goto error; } msg->run_data[msg->run_length - 1] = run_new(); if (msg->run_data[msg->run_length - 1] == NULL) goto error; msg->run_set = 1; return (msg->run_data[msg->run_length - 1]); error: --msg->run_length; return (NULL); } int msg_from_name_assign(struct msg *msg, const char * value) { if (msg->from_name_data != NULL) free(msg->from_name_data); if ((msg->from_name_data = strdup(value)) == NULL) return (-1); msg->from_name_set = 1; return (0); } int msg_to_name_assign(struct msg *msg, const char * value) { if (msg->to_name_data != NULL) free(msg->to_name_data); if ((msg->to_name_data = strdup(value)) == NULL) return (-1); msg->to_name_set = 1; return (0); } int msg_attack_assign(struct msg *msg, const struct kill* value) { struct evbuffer *tmp = NULL; if (msg->attack_set) { kill_clear(msg->attack_data); msg->attack_set = 0; } else { msg->attack_data = kill_new(); if (msg->attack_data == NULL) { event_warn("%s: kill_new()", __func__); goto error; } } if ((tmp = evbuffer_new()) == NULL) { event_warn("%s: evbuffer_new()", __func__); goto error; } kill_marshal(tmp, value); if (kill_unmarshal(msg->attack_data, tmp) == -1) { event_warnx("%s: kill_unmarshal", __func__); goto error; } msg->attack_set = 1; evbuffer_free(tmp); return (0); error: if (tmp != NULL) evbuffer_free(tmp); if (msg->attack_data != NULL) { kill_free(msg->attack_data); msg->attack_data = NULL; } return (-1); } int msg_run_assign(struct msg *msg, int off, const struct run* value) { if (!msg->run_set || off < 0 || off >= msg->run_length) return (-1); { int had_error = 0; struct evbuffer *tmp = NULL; run_clear(msg->run_data[off]); if ((tmp = evbuffer_new()) == NULL) { event_warn("%s: evbuffer_new()", __func__); had_error = 1; goto done; } run_marshal(tmp, value); if (run_unmarshal(msg->run_data[off], tmp) == -1) { event_warnx("%s: run_unmarshal", __func__); had_error = 1; goto done; } done:if (tmp != NULL) evbuffer_free(tmp); if (had_error) { run_clear(msg->run_data[off]); return (-1); } } return (0); } int msg_from_name_get(struct msg *msg, char * *value) { if (msg->from_name_set != 1) return (-1); *value = msg->from_name_data; return (0); } int msg_to_name_get(struct msg *msg, char * *value) { if (msg->to_name_set != 1) return (-1); *value = msg->to_name_data; return (0); } int msg_attack_get(struct msg *msg, struct kill* *value) { if (msg->attack_set != 1) { msg->attack_data = kill_new(); if (msg->attack_data == NULL) return (-1); msg->attack_set = 1; } *value = msg->attack_data; return (0); } int msg_run_get(struct msg *msg, int offset, struct run* *value) { if (!msg->run_set || offset < 0 || offset >= msg->run_length) return (-1); *value = msg->run_data[offset]; return (0); } void msg_clear(struct msg *tmp) { if (tmp->from_name_set == 1) { free(tmp->from_name_data); tmp->from_name_data = NULL; tmp->from_name_set = 0; } if (tmp->to_name_set == 1) { free(tmp->to_name_data); tmp->to_name_data = NULL; tmp->to_name_set = 0; } if (tmp->attack_set == 1) { kill_free(tmp->attack_data); tmp->attack_data = NULL; tmp->attack_set = 0; } if (tmp->run_set == 1) { int i; for (i = 0; i < tmp->run_length; ++i) { run_free(tmp->run_data[i]); } free(tmp->run_data); tmp->run_data = NULL; tmp->run_set = 0; tmp->run_length = 0; tmp->run_num_allocated = 0; } } void msg_free(struct msg *tmp) { if (tmp->from_name_data != NULL) free (tmp->from_name_data); if (tmp->to_name_data != NULL) free (tmp->to_name_data); if (tmp->attack_data != NULL) kill_free(tmp->attack_data); if (tmp->run_set == 1) { int i; for (i = 0; i < tmp->run_length; ++i) { run_free(tmp->run_data[i]); } free(tmp->run_data); tmp->run_data = NULL; tmp->run_set = 0; tmp->run_length = 0; tmp->run_num_allocated = 0; } free(tmp->run_data); free(tmp); } void msg_marshal(struct evbuffer *evbuf, const struct msg *tmp){ evtag_marshal_string(evbuf, MSG_FROM_NAME, tmp->from_name_data); evtag_marshal_string(evbuf, MSG_TO_NAME, tmp->to_name_data); if (tmp->attack_set) { evtag_marshal_kill(evbuf, MSG_ATTACK, tmp->attack_data); } if (tmp->run_set) { { int i; for (i = 0; i < tmp->run_length; ++i) { evtag_marshal_run(evbuf, MSG_RUN, tmp->run_data[i]); } } } } int msg_unmarshal(struct msg *tmp, struct evbuffer *evbuf) { ev_uint32_t tag; while (evbuffer_get_length(evbuf) > 0) { if (evtag_peek(evbuf, &tag) == -1) return (-1); switch (tag) { case MSG_FROM_NAME: if (tmp->from_name_set) return (-1); if (evtag_unmarshal_string(evbuf, MSG_FROM_NAME, &tmp->from_name_data) == -1) { event_warnx("%s: failed to unmarshal from_name", __func__); return (-1); } tmp->from_name_set = 1; break; case MSG_TO_NAME: if (tmp->to_name_set) return (-1); if (evtag_unmarshal_string(evbuf, MSG_TO_NAME, &tmp->to_name_data) == -1) { event_warnx("%s: failed to unmarshal to_name", __func__); return (-1); } tmp->to_name_set = 1; break; case MSG_ATTACK: if (tmp->attack_set) return (-1); tmp->attack_data = kill_new(); if (tmp->attack_data == NULL) return (-1); if (evtag_unmarshal_kill(evbuf, MSG_ATTACK, tmp->attack_data) == -1) { event_warnx("%s: failed to unmarshal attack", __func__); return (-1); } tmp->attack_set = 1; break; case MSG_RUN: if (tmp->run_length >= tmp->run_num_allocated && msg_run_expand_to_hold_more(tmp) < 0) { puts("HEY NOW"); return (-1); } tmp->run_data[tmp->run_length] = run_new(); if (tmp->run_data[tmp->run_length] == NULL) return (-1); if (evtag_unmarshal_run(evbuf, MSG_RUN, tmp->run_data[tmp->run_length]) == -1) { event_warnx("%s: failed to unmarshal run", __func__); return (-1); } ++tmp->run_length; tmp->run_set = 1; break; default: return -1; } } if (msg_complete(tmp) == -1) return (-1); return (0); } int msg_complete(struct msg *msg) { if (!msg->from_name_set) return (-1); if (!msg->to_name_set) return (-1); if (msg->attack_set && kill_complete(msg->attack_data) == -1) return (-1); { int i; for (i = 0; i < msg->run_length; ++i) { if (msg->run_set && run_complete(msg->run_data[i]) == -1) return (-1); } } return (0); } int evtag_unmarshal_msg(struct evbuffer *evbuf, ev_uint32_t need_tag, struct msg *msg) { ev_uint32_t tag; int res = -1; struct evbuffer *tmp = evbuffer_new(); if (evtag_unmarshal(evbuf, &tag, tmp) == -1 || tag != need_tag) goto error; if (msg_unmarshal(msg, tmp) == -1) goto error; res = 0; error: evbuffer_free(tmp); return (res); } void evtag_marshal_msg(struct evbuffer *evbuf, ev_uint32_t tag, const struct msg *msg) { struct evbuffer *_buf = evbuffer_new(); assert(_buf != NULL); msg_marshal(_buf, msg); evtag_marshal_buffer(evbuf, tag, _buf); evbuffer_free(_buf); } /* * Implementation of kill */ static struct kill_access_ __kill_base = { kill_weapon_assign, kill_weapon_get, kill_action_assign, kill_action_get, kill_how_often_assign, kill_how_often_get, kill_how_often_add, }; struct kill * kill_new(void) { return kill_new_with_arg(NULL); } struct kill * kill_new_with_arg(void *unused) { struct kill *tmp; if ((tmp = malloc(sizeof(struct kill))) == NULL) { event_warn("%s: malloc", __func__); return (NULL); } tmp->base = &__kill_base; tmp->weapon_data = NULL; tmp->weapon_set = 0; tmp->action_data = NULL; tmp->action_set = 0; tmp->how_often_data = NULL; tmp->how_often_length = 0; tmp->how_often_num_allocated = 0; tmp->how_often_set = 0; return (tmp); } static int kill_how_often_expand_to_hold_more(struct kill *msg) { int tobe_allocated = msg->how_often_num_allocated; ev_uint32_t* new_data = NULL; tobe_allocated = !tobe_allocated ? 1 : tobe_allocated << 1; new_data = (ev_uint32_t*) realloc(msg->how_often_data, tobe_allocated * sizeof(ev_uint32_t)); if (new_data == NULL) return -1; msg->how_often_data = new_data; msg->how_often_num_allocated = tobe_allocated; return 0;} ev_uint32_t * kill_how_often_add(struct kill *msg, const ev_uint32_t value) { if (++msg->how_often_length >= msg->how_often_num_allocated) { if (kill_how_often_expand_to_hold_more(msg)<0) goto error; } msg->how_often_data[msg->how_often_length - 1] = value; msg->how_often_set = 1; return &(msg->how_often_data[msg->how_often_length - 1]); error: --msg->how_often_length; return (NULL); } int kill_weapon_assign(struct kill *msg, const char * value) { if (msg->weapon_data != NULL) free(msg->weapon_data); if ((msg->weapon_data = strdup(value)) == NULL) return (-1); msg->weapon_set = 1; return (0); } int kill_action_assign(struct kill *msg, const char * value) { if (msg->action_data != NULL) free(msg->action_data); if ((msg->action_data = strdup(value)) == NULL) return (-1); msg->action_set = 1; return (0); } int kill_how_often_assign(struct kill *msg, int off, const ev_uint32_t value) { if (!msg->how_often_set || off < 0 || off >= msg->how_often_length) return (-1); { msg->how_often_data[off] = value; } return (0); } int kill_weapon_get(struct kill *msg, char * *value) { if (msg->weapon_set != 1) return (-1); *value = msg->weapon_data; return (0); } int kill_action_get(struct kill *msg, char * *value) { if (msg->action_set != 1) return (-1); *value = msg->action_data; return (0); } int kill_how_often_get(struct kill *msg, int offset, ev_uint32_t *value) { if (!msg->how_often_set || offset < 0 || offset >= msg->how_often_length) return (-1); *value = msg->how_often_data[offset]; return (0); } void kill_clear(struct kill *tmp) { if (tmp->weapon_set == 1) { free(tmp->weapon_data); tmp->weapon_data = NULL; tmp->weapon_set = 0; } if (tmp->action_set == 1) { free(tmp->action_data); tmp->action_data = NULL; tmp->action_set = 0; } if (tmp->how_often_set == 1) { free(tmp->how_often_data); tmp->how_often_data = NULL; tmp->how_often_set = 0; tmp->how_often_length = 0; tmp->how_often_num_allocated = 0; } } void kill_free(struct kill *tmp) { if (tmp->weapon_data != NULL) free (tmp->weapon_data); if (tmp->action_data != NULL) free (tmp->action_data); if (tmp->how_often_set == 1) { free(tmp->how_often_data); tmp->how_often_data = NULL; tmp->how_often_set = 0; tmp->how_often_length = 0; tmp->how_often_num_allocated = 0; } free(tmp->how_often_data); free(tmp); } void kill_marshal(struct evbuffer *evbuf, const struct kill *tmp){ evtag_marshal_string(evbuf, KILL_WEAPON, tmp->weapon_data); evtag_marshal_string(evbuf, KILL_ACTION, tmp->action_data); if (tmp->how_often_set) { { int i; for (i = 0; i < tmp->how_often_length; ++i) { evtag_marshal_int(evbuf, KILL_HOW_OFTEN, tmp->how_often_data[i]); } } } } int kill_unmarshal(struct kill *tmp, struct evbuffer *evbuf) { ev_uint32_t tag; while (evbuffer_get_length(evbuf) > 0) { if (evtag_peek(evbuf, &tag) == -1) return (-1); switch (tag) { case KILL_WEAPON: if (tmp->weapon_set) return (-1); if (evtag_unmarshal_string(evbuf, KILL_WEAPON, &tmp->weapon_data) == -1) { event_warnx("%s: failed to unmarshal weapon", __func__); return (-1); } tmp->weapon_set = 1; break; case KILL_ACTION: if (tmp->action_set) return (-1); if (evtag_unmarshal_string(evbuf, KILL_ACTION, &tmp->action_data) == -1) { event_warnx("%s: failed to unmarshal action", __func__); return (-1); } tmp->action_set = 1; break; case KILL_HOW_OFTEN: if (tmp->how_often_length >= tmp->how_often_num_allocated && kill_how_often_expand_to_hold_more(tmp) < 0) { puts("HEY NOW"); return (-1); } if (evtag_unmarshal_int(evbuf, KILL_HOW_OFTEN, &tmp->how_often_data[tmp->how_often_length]) == -1) { event_warnx("%s: failed to unmarshal how_often", __func__); return (-1); } ++tmp->how_often_length; tmp->how_often_set = 1; break; default: return -1; } } if (kill_complete(tmp) == -1) return (-1); return (0); } int kill_complete(struct kill *msg) { if (!msg->weapon_set) return (-1); if (!msg->action_set) return (-1); return (0); } int evtag_unmarshal_kill(struct evbuffer *evbuf, ev_uint32_t need_tag, struct kill *msg) { ev_uint32_t tag; int res = -1; struct evbuffer *tmp = evbuffer_new(); if (evtag_unmarshal(evbuf, &tag, tmp) == -1 || tag != need_tag) goto error; if (kill_unmarshal(msg, tmp) == -1) goto error; res = 0; error: evbuffer_free(tmp); return (res); } void evtag_marshal_kill(struct evbuffer *evbuf, ev_uint32_t tag, const struct kill *msg) { struct evbuffer *_buf = evbuffer_new(); assert(_buf != NULL); kill_marshal(_buf, msg); evtag_marshal_buffer(evbuf, tag, _buf); evbuffer_free(_buf); } /* * Implementation of run */ static struct run_access_ __run_base = { run_how_assign, run_how_get, run_some_bytes_assign, run_some_bytes_get, run_fixed_bytes_assign, run_fixed_bytes_get, run_notes_assign, run_notes_get, run_notes_add, run_large_number_assign, run_large_number_get, run_other_numbers_assign, run_other_numbers_get, run_other_numbers_add, }; struct run * run_new(void) { return run_new_with_arg(NULL); } struct run * run_new_with_arg(void *unused) { struct run *tmp; if ((tmp = malloc(sizeof(struct run))) == NULL) { event_warn("%s: malloc", __func__); return (NULL); } tmp->base = &__run_base; tmp->how_data = NULL; tmp->how_set = 0; tmp->some_bytes_data = NULL; tmp->some_bytes_length = 0; tmp->some_bytes_set = 0; memset(tmp->fixed_bytes_data, 0, sizeof(tmp->fixed_bytes_data)); tmp->fixed_bytes_set = 0; tmp->notes_data = NULL; tmp->notes_length = 0; tmp->notes_num_allocated = 0; tmp->notes_set = 0; tmp->large_number_data = 0; tmp->large_number_set = 0; tmp->other_numbers_data = NULL; tmp->other_numbers_length = 0; tmp->other_numbers_num_allocated = 0; tmp->other_numbers_set = 0; return (tmp); } static int run_notes_expand_to_hold_more(struct run *msg) { int tobe_allocated = msg->notes_num_allocated; char ** new_data = NULL; tobe_allocated = !tobe_allocated ? 1 : tobe_allocated << 1; new_data = (char **) realloc(msg->notes_data, tobe_allocated * sizeof(char *)); if (new_data == NULL) return -1; msg->notes_data = new_data; msg->notes_num_allocated = tobe_allocated; return 0;} char * * run_notes_add(struct run *msg, const char * value) { if (++msg->notes_length >= msg->notes_num_allocated) { if (run_notes_expand_to_hold_more(msg)<0) goto error; } if (value != NULL) { msg->notes_data[msg->notes_length - 1] = strdup(value); if (msg->notes_data[msg->notes_length - 1] == NULL) { goto error; } } else { msg->notes_data[msg->notes_length - 1] = NULL; } msg->notes_set = 1; return &(msg->notes_data[msg->notes_length - 1]); error: --msg->notes_length; return (NULL); } static int run_other_numbers_expand_to_hold_more(struct run *msg) { int tobe_allocated = msg->other_numbers_num_allocated; ev_uint32_t* new_data = NULL; tobe_allocated = !tobe_allocated ? 1 : tobe_allocated << 1; new_data = (ev_uint32_t*) realloc(msg->other_numbers_data, tobe_allocated * sizeof(ev_uint32_t)); if (new_data == NULL) return -1; msg->other_numbers_data = new_data; msg->other_numbers_num_allocated = tobe_allocated; return 0;} ev_uint32_t * run_other_numbers_add(struct run *msg, const ev_uint32_t value) { if (++msg->other_numbers_length >= msg->other_numbers_num_allocated) { if (run_other_numbers_expand_to_hold_more(msg)<0) goto error; } msg->other_numbers_data[msg->other_numbers_length - 1] = value; msg->other_numbers_set = 1; return &(msg->other_numbers_data[msg->other_numbers_length - 1]); error: --msg->other_numbers_length; return (NULL); } int run_how_assign(struct run *msg, const char * value) { if (msg->how_data != NULL) free(msg->how_data); if ((msg->how_data = strdup(value)) == NULL) return (-1); msg->how_set = 1; return (0); } int run_some_bytes_assign(struct run *msg, const ev_uint8_t * value, ev_uint32_t len) { if (msg->some_bytes_data != NULL) free (msg->some_bytes_data); msg->some_bytes_data = malloc(len); if (msg->some_bytes_data == NULL) return (-1); msg->some_bytes_set = 1; msg->some_bytes_length = len; memcpy(msg->some_bytes_data, value, len); return (0); } int run_fixed_bytes_assign(struct run *msg, const ev_uint8_t *value) { msg->fixed_bytes_set = 1; memcpy(msg->fixed_bytes_data, value, 24); return (0); } int run_notes_assign(struct run *msg, int off, const char * value) { if (!msg->notes_set || off < 0 || off >= msg->notes_length) return (-1); { if (msg->notes_data[off] != NULL) free(msg->notes_data[off]); msg->notes_data[off] = strdup(value); if (msg->notes_data[off] == NULL) { event_warnx("%s: strdup", __func__); return (-1); } } return (0); } int run_large_number_assign(struct run *msg, const ev_uint64_t value) { msg->large_number_set = 1; msg->large_number_data = value; return (0); } int run_other_numbers_assign(struct run *msg, int off, const ev_uint32_t value) { if (!msg->other_numbers_set || off < 0 || off >= msg->other_numbers_length) return (-1); { msg->other_numbers_data[off] = value; } return (0); } int run_how_get(struct run *msg, char * *value) { if (msg->how_set != 1) return (-1); *value = msg->how_data; return (0); } int run_some_bytes_get(struct run *msg, ev_uint8_t * *value, ev_uint32_t *plen) { if (msg->some_bytes_set != 1) return (-1); *value = msg->some_bytes_data; *plen = msg->some_bytes_length; return (0); } int run_fixed_bytes_get(struct run *msg, ev_uint8_t **value) { if (msg->fixed_bytes_set != 1) return (-1); *value = msg->fixed_bytes_data; return (0); } int run_notes_get(struct run *msg, int offset, char * *value) { if (!msg->notes_set || offset < 0 || offset >= msg->notes_length) return (-1); *value = msg->notes_data[offset]; return (0); } int run_large_number_get(struct run *msg, ev_uint64_t *value) { if (msg->large_number_set != 1) return (-1); *value = msg->large_number_data; return (0); } int run_other_numbers_get(struct run *msg, int offset, ev_uint32_t *value) { if (!msg->other_numbers_set || offset < 0 || offset >= msg->other_numbers_length) return (-1); *value = msg->other_numbers_data[offset]; return (0); } void run_clear(struct run *tmp) { if (tmp->how_set == 1) { free(tmp->how_data); tmp->how_data = NULL; tmp->how_set = 0; } if (tmp->some_bytes_set == 1) { free (tmp->some_bytes_data); tmp->some_bytes_data = NULL; tmp->some_bytes_length = 0; tmp->some_bytes_set = 0; } tmp->fixed_bytes_set = 0; memset(tmp->fixed_bytes_data, 0, sizeof(tmp->fixed_bytes_data)); if (tmp->notes_set == 1) { int i; for (i = 0; i < tmp->notes_length; ++i) { if (tmp->notes_data[i] != NULL) free(tmp->notes_data[i]); } free(tmp->notes_data); tmp->notes_data = NULL; tmp->notes_set = 0; tmp->notes_length = 0; tmp->notes_num_allocated = 0; } tmp->large_number_set = 0; if (tmp->other_numbers_set == 1) { free(tmp->other_numbers_data); tmp->other_numbers_data = NULL; tmp->other_numbers_set = 0; tmp->other_numbers_length = 0; tmp->other_numbers_num_allocated = 0; } } void run_free(struct run *tmp) { if (tmp->how_data != NULL) free (tmp->how_data); if (tmp->some_bytes_data != NULL) free(tmp->some_bytes_data); if (tmp->notes_set == 1) { int i; for (i = 0; i < tmp->notes_length; ++i) { if (tmp->notes_data[i] != NULL) free(tmp->notes_data[i]); } free(tmp->notes_data); tmp->notes_data = NULL; tmp->notes_set = 0; tmp->notes_length = 0; tmp->notes_num_allocated = 0; } free(tmp->notes_data); if (tmp->other_numbers_set == 1) { free(tmp->other_numbers_data); tmp->other_numbers_data = NULL; tmp->other_numbers_set = 0; tmp->other_numbers_length = 0; tmp->other_numbers_num_allocated = 0; } free(tmp->other_numbers_data); free(tmp); } void run_marshal(struct evbuffer *evbuf, const struct run *tmp){ evtag_marshal_string(evbuf, RUN_HOW, tmp->how_data); if (tmp->some_bytes_set) { evtag_marshal(evbuf, RUN_SOME_BYTES, tmp->some_bytes_data, tmp->some_bytes_length); } evtag_marshal(evbuf, RUN_FIXED_BYTES, tmp->fixed_bytes_data, (24)); if (tmp->notes_set) { { int i; for (i = 0; i < tmp->notes_length; ++i) { evtag_marshal_string(evbuf, RUN_NOTES, tmp->notes_data[i]); } } } if (tmp->large_number_set) { evtag_marshal_int64(evbuf, RUN_LARGE_NUMBER, tmp->large_number_data); } if (tmp->other_numbers_set) { { int i; for (i = 0; i < tmp->other_numbers_length; ++i) { evtag_marshal_int(evbuf, RUN_OTHER_NUMBERS, tmp->other_numbers_data[i]); } } } } int run_unmarshal(struct run *tmp, struct evbuffer *evbuf) { ev_uint32_t tag; while (evbuffer_get_length(evbuf) > 0) { if (evtag_peek(evbuf, &tag) == -1) return (-1); switch (tag) { case RUN_HOW: if (tmp->how_set) return (-1); if (evtag_unmarshal_string(evbuf, RUN_HOW, &tmp->how_data) == -1) { event_warnx("%s: failed to unmarshal how", __func__); return (-1); } tmp->how_set = 1; break; case RUN_SOME_BYTES: if (tmp->some_bytes_set) return (-1); if (evtag_payload_length(evbuf, &tmp->some_bytes_length) == -1) return (-1); if (tmp->some_bytes_length > evbuffer_get_length(evbuf)) return (-1); if ((tmp->some_bytes_data = malloc(tmp->some_bytes_length)) == NULL) return (-1); if (evtag_unmarshal_fixed(evbuf, RUN_SOME_BYTES, tmp->some_bytes_data, tmp->some_bytes_length) == -1) { event_warnx("%s: failed to unmarshal some_bytes", __func__); return (-1); } tmp->some_bytes_set = 1; break; case RUN_FIXED_BYTES: if (tmp->fixed_bytes_set) return (-1); if (evtag_unmarshal_fixed(evbuf, RUN_FIXED_BYTES, tmp->fixed_bytes_data, (24)) == -1) { event_warnx("%s: failed to unmarshal fixed_bytes", __func__); return (-1); } tmp->fixed_bytes_set = 1; break; case RUN_NOTES: if (tmp->notes_length >= tmp->notes_num_allocated && run_notes_expand_to_hold_more(tmp) < 0) { puts("HEY NOW"); return (-1); } if (evtag_unmarshal_string(evbuf, RUN_NOTES, &tmp->notes_data[tmp->notes_length]) == -1) { event_warnx("%s: failed to unmarshal notes", __func__); return (-1); } ++tmp->notes_length; tmp->notes_set = 1; break; case RUN_LARGE_NUMBER: if (tmp->large_number_set) return (-1); if (evtag_unmarshal_int64(evbuf, RUN_LARGE_NUMBER, &tmp->large_number_data) == -1) { event_warnx("%s: failed to unmarshal large_number", __func__); return (-1); } tmp->large_number_set = 1; break; case RUN_OTHER_NUMBERS: if (tmp->other_numbers_length >= tmp->other_numbers_num_allocated && run_other_numbers_expand_to_hold_more(tmp) < 0) { puts("HEY NOW"); return (-1); } if (evtag_unmarshal_int(evbuf, RUN_OTHER_NUMBERS, &tmp->other_numbers_data[tmp->other_numbers_length]) == -1) { event_warnx("%s: failed to unmarshal other_numbers", __func__); return (-1); } ++tmp->other_numbers_length; tmp->other_numbers_set = 1; break; default: return -1; } } if (run_complete(tmp) == -1) return (-1); return (0); } int run_complete(struct run *msg) { if (!msg->how_set) return (-1); if (!msg->fixed_bytes_set) return (-1); return (0); } int evtag_unmarshal_run(struct evbuffer *evbuf, ev_uint32_t need_tag, struct run *msg) { ev_uint32_t tag; int res = -1; struct evbuffer *tmp = evbuffer_new(); if (evtag_unmarshal(evbuf, &tag, tmp) == -1 || tag != need_tag) goto error; if (run_unmarshal(msg, tmp) == -1) goto error; res = 0; error: evbuffer_free(tmp); return (res); } void evtag_marshal_run(struct evbuffer *evbuf, ev_uint32_t tag, const struct run *msg) { struct evbuffer *_buf = evbuffer_new(); assert(_buf != NULL); run_marshal(_buf, msg); evtag_marshal_buffer(evbuf, tag, _buf); evbuffer_free(_buf); } dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress.gen.h000644 000765 000024 00000015036 13040635351 023702 0ustar00jstaff000000 000000 /* * Automatically generated from ./regress.rpc */ #ifndef ___REGRESS_RPC_ #define ___REGRESS_RPC_ #include /* for ev_uint*_t */ #include struct msg; struct kill; struct run; /* Tag definition for msg */ enum msg_ { MSG_FROM_NAME=1, MSG_TO_NAME=2, MSG_ATTACK=3, MSG_RUN=4, MSG_MAX_TAGS }; /* Structure declaration for msg */ struct msg_access_ { int (*from_name_assign)(struct msg *, const char *); int (*from_name_get)(struct msg *, char * *); int (*to_name_assign)(struct msg *, const char *); int (*to_name_get)(struct msg *, char * *); int (*attack_assign)(struct msg *, const struct kill*); int (*attack_get)(struct msg *, struct kill* *); int (*run_assign)(struct msg *, int, const struct run*); int (*run_get)(struct msg *, int, struct run* *); struct run* (*run_add)(struct msg *msg); }; struct msg { struct msg_access_ *base; char *from_name_data; char *to_name_data; struct kill* attack_data; struct run* *run_data; int run_length; int run_num_allocated; ev_uint8_t from_name_set; ev_uint8_t to_name_set; ev_uint8_t attack_set; ev_uint8_t run_set; }; struct msg *msg_new(void); struct msg *msg_new_with_arg(void *); void msg_free(struct msg *); void msg_clear(struct msg *); void msg_marshal(struct evbuffer *, const struct msg *); int msg_unmarshal(struct msg *, struct evbuffer *); int msg_complete(struct msg *); void evtag_marshal_msg(struct evbuffer *, ev_uint32_t, const struct msg *); int evtag_unmarshal_msg(struct evbuffer *, ev_uint32_t, struct msg *); int msg_from_name_assign(struct msg *, const char *); int msg_from_name_get(struct msg *, char * *); int msg_to_name_assign(struct msg *, const char *); int msg_to_name_get(struct msg *, char * *); int msg_attack_assign(struct msg *, const struct kill*); int msg_attack_get(struct msg *, struct kill* *); int msg_run_assign(struct msg *, int, const struct run*); int msg_run_get(struct msg *, int, struct run* *); struct run* msg_run_add(struct msg *msg); /* --- msg done --- */ /* Tag definition for kill */ enum kill_ { KILL_WEAPON=65825, KILL_ACTION=2, KILL_HOW_OFTEN=3, KILL_MAX_TAGS }; /* Structure declaration for kill */ struct kill_access_ { int (*weapon_assign)(struct kill *, const char *); int (*weapon_get)(struct kill *, char * *); int (*action_assign)(struct kill *, const char *); int (*action_get)(struct kill *, char * *); int (*how_often_assign)(struct kill *, int, const ev_uint32_t); int (*how_often_get)(struct kill *, int, ev_uint32_t *); ev_uint32_t * (*how_often_add)(struct kill *msg, const ev_uint32_t value); }; struct kill { struct kill_access_ *base; char *weapon_data; char *action_data; ev_uint32_t *how_often_data; int how_often_length; int how_often_num_allocated; ev_uint8_t weapon_set; ev_uint8_t action_set; ev_uint8_t how_often_set; }; struct kill *kill_new(void); struct kill *kill_new_with_arg(void *); void kill_free(struct kill *); void kill_clear(struct kill *); void kill_marshal(struct evbuffer *, const struct kill *); int kill_unmarshal(struct kill *, struct evbuffer *); int kill_complete(struct kill *); void evtag_marshal_kill(struct evbuffer *, ev_uint32_t, const struct kill *); int evtag_unmarshal_kill(struct evbuffer *, ev_uint32_t, struct kill *); int kill_weapon_assign(struct kill *, const char *); int kill_weapon_get(struct kill *, char * *); int kill_action_assign(struct kill *, const char *); int kill_action_get(struct kill *, char * *); int kill_how_often_assign(struct kill *, int, const ev_uint32_t); int kill_how_often_get(struct kill *, int, ev_uint32_t *); ev_uint32_t * kill_how_often_add(struct kill *msg, const ev_uint32_t value); /* --- kill done --- */ /* Tag definition for run */ enum run_ { RUN_HOW=1, RUN_SOME_BYTES=2, RUN_FIXED_BYTES=3, RUN_NOTES=4, RUN_LARGE_NUMBER=5, RUN_OTHER_NUMBERS=6, RUN_MAX_TAGS }; /* Structure declaration for run */ struct run_access_ { int (*how_assign)(struct run *, const char *); int (*how_get)(struct run *, char * *); int (*some_bytes_assign)(struct run *, const ev_uint8_t *, ev_uint32_t); int (*some_bytes_get)(struct run *, ev_uint8_t * *, ev_uint32_t *); int (*fixed_bytes_assign)(struct run *, const ev_uint8_t *); int (*fixed_bytes_get)(struct run *, ev_uint8_t **); int (*notes_assign)(struct run *, int, const char *); int (*notes_get)(struct run *, int, char * *); char * * (*notes_add)(struct run *msg, const char * value); int (*large_number_assign)(struct run *, const ev_uint64_t); int (*large_number_get)(struct run *, ev_uint64_t *); int (*other_numbers_assign)(struct run *, int, const ev_uint32_t); int (*other_numbers_get)(struct run *, int, ev_uint32_t *); ev_uint32_t * (*other_numbers_add)(struct run *msg, const ev_uint32_t value); }; struct run { struct run_access_ *base; char *how_data; ev_uint8_t *some_bytes_data; ev_uint32_t some_bytes_length; ev_uint8_t fixed_bytes_data[24]; char * *notes_data; int notes_length; int notes_num_allocated; ev_uint64_t large_number_data; ev_uint32_t *other_numbers_data; int other_numbers_length; int other_numbers_num_allocated; ev_uint8_t how_set; ev_uint8_t some_bytes_set; ev_uint8_t fixed_bytes_set; ev_uint8_t notes_set; ev_uint8_t large_number_set; ev_uint8_t other_numbers_set; }; struct run *run_new(void); struct run *run_new_with_arg(void *); void run_free(struct run *); void run_clear(struct run *); void run_marshal(struct evbuffer *, const struct run *); int run_unmarshal(struct run *, struct evbuffer *); int run_complete(struct run *); void evtag_marshal_run(struct evbuffer *, ev_uint32_t, const struct run *); int evtag_unmarshal_run(struct evbuffer *, ev_uint32_t, struct run *); int run_how_assign(struct run *, const char *); int run_how_get(struct run *, char * *); int run_some_bytes_assign(struct run *, const ev_uint8_t *, ev_uint32_t); int run_some_bytes_get(struct run *, ev_uint8_t * *, ev_uint32_t *); int run_fixed_bytes_assign(struct run *, const ev_uint8_t *); int run_fixed_bytes_get(struct run *, ev_uint8_t **); int run_notes_assign(struct run *, int, const char *); int run_notes_get(struct run *, int, char * *); char * * run_notes_add(struct run *msg, const char * value); int run_large_number_assign(struct run *, const ev_uint64_t); int run_large_number_get(struct run *, ev_uint64_t *); int run_other_numbers_assign(struct run *, int, const ev_uint32_t); int run_other_numbers_get(struct run *, int, ev_uint32_t *); ev_uint32_t * run_other_numbers_add(struct run *msg, const ev_uint32_t value); /* --- run done --- */ #endif /* ___REGRESS_RPC_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress.h000644 000765 000024 00000011042 13037731714 023131 0ustar00jstaff000000 000000 /* * Copyright (c) 2000-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _REGRESS_H_ #define _REGRESS_H_ #ifdef __cplusplus extern "C" { #endif #include "tinytest.h" #include "tinytest_macros.h" extern struct testcase_t main_testcases[]; extern struct testcase_t evtag_testcases[]; extern struct testcase_t evbuffer_testcases[]; extern struct testcase_t bufferevent_testcases[]; extern struct testcase_t bufferevent_iocp_testcases[]; extern struct testcase_t util_testcases[]; extern struct testcase_t signal_testcases[]; extern struct testcase_t http_testcases[]; extern struct testcase_t dns_testcases[]; extern struct testcase_t rpc_testcases[]; extern struct testcase_t edgetriggered_testcases[]; extern struct testcase_t minheap_testcases[]; extern struct testcase_t iocp_testcases[]; extern struct testcase_t ssl_testcases[]; extern struct testcase_t listener_testcases[]; extern struct testcase_t listener_iocp_testcases[]; extern struct testcase_t thread_testcases[]; void regress_threads(void *); void test_bufferevent_zlib(void *); /* Helpers to wrap old testcases */ extern evutil_socket_t pair[2]; extern int test_ok; extern int called; extern struct event_base *global_base; extern int in_legacy_test_wrapper; int regress_make_tmpfile(const void *data, size_t datalen); struct basic_test_data { struct event_base *base; evutil_socket_t pair[2]; void (*legacy_test_fn)(void); void *setup_data; }; extern const struct testcase_setup_t basic_setup; extern const struct testcase_setup_t legacy_setup; void run_legacy_test_fn(void *ptr); /* A couple of flags that basic/legacy_setup can support. */ #define TT_NEED_SOCKETPAIR TT_FIRST_USER_FLAG #define TT_NEED_BASE (TT_FIRST_USER_FLAG<<1) #define TT_NEED_DNS (TT_FIRST_USER_FLAG<<2) #define TT_LEGACY (TT_FIRST_USER_FLAG<<3) #define TT_NEED_THREADS (TT_FIRST_USER_FLAG<<4) #define TT_NO_LOGS (TT_FIRST_USER_FLAG<<5) #define TT_ENABLE_IOCP_FLAG (TT_FIRST_USER_FLAG<<6) #define TT_ENABLE_IOCP (TT_ENABLE_IOCP_FLAG|TT_NEED_THREADS) /* All the flags that a legacy test needs. */ #define TT_ISOLATED TT_FORK|TT_NEED_SOCKETPAIR|TT_NEED_BASE #define BASIC(name,flags) \ { #name, test_## name, flags, &basic_setup, NULL } #define LEGACY(name,flags) \ { #name, run_legacy_test_fn, flags|TT_LEGACY, &legacy_setup, \ test_## name } struct evutil_addrinfo; struct evutil_addrinfo *ai_find_by_family(struct evutil_addrinfo *ai, int f); struct evutil_addrinfo *ai_find_by_protocol(struct evutil_addrinfo *ai, int p); int _test_ai_eq(const struct evutil_addrinfo *ai, const char *sockaddr_port, int socktype, int protocol, int line); #define test_ai_eq(ai, str, s, p) do { \ if (_test_ai_eq((ai), (str), (s), (p), __LINE__)<0) \ goto end; \ } while (0) #define test_timeval_diff_leq(tv1, tv2, diff, tolerance) \ tt_int_op(abs(timeval_msec_diff((tv1), (tv2)) - diff), <=, tolerance) #define test_timeval_diff_eq(tv1, tv2, diff) \ test_timeval_diff_leq((tv1), (tv2), (diff), 50) long timeval_msec_diff(const struct timeval *start, const struct timeval *end); #ifndef _WIN32 pid_t regress_fork(void); #endif #ifdef __cplusplus } #endif #endif /* _REGRESS_H_ */ dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress.rpc000644 000765 000024 00000000721 13037731714 023470 0ustar00jstaff000000 000000 /* tests data packing and unpacking */ struct msg { string /* sender */ from_name = 1; /* be verbose */ string to_name = 2; optional struct[kill] attack = 3; array struct[run] run = 4; } struct kill { string weapon = 0x10121; string action = 2; array int how_often = 3; } struct run { string how = 1; optional bytes some_bytes = 2; bytes fixed_bytes[24] = 3; array string notes = 4; optional int64 large_number = 5; array int other_numbers = 6; } dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress_buffer.c000644 000765 000024 00000141443 13037731714 024466 0ustar00jstaff000000 000000 /* * Copyright (c) 2003-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef WIN32 #include #include #endif #include "event2/event-config.h" #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #ifndef WIN32 #include #include #include #include #include #endif #include #include #include #include #include #include "event2/event.h" #include "event2/buffer.h" #include "event2/buffer_compat.h" #include "event2/util.h" #include "evbuffer-internal.h" #include "log-internal.h" #include "regress.h" /* Validates that an evbuffer is good. Returns false if it isn't, true if it * is*/ static int _evbuffer_validate(struct evbuffer *buf) { struct evbuffer_chain *chain; size_t sum = 0; int found_last_with_datap = 0; if (buf->first == NULL) { tt_assert(buf->last == NULL); tt_assert(buf->total_len == 0); } chain = buf->first; tt_assert(buf->last_with_datap); if (buf->last_with_datap == &buf->first) found_last_with_datap = 1; while (chain != NULL) { if (&chain->next == buf->last_with_datap) found_last_with_datap = 1; sum += chain->off; if (chain->next == NULL) { tt_assert(buf->last == chain); } tt_assert(chain->buffer_len >= chain->misalign + chain->off); chain = chain->next; } if (buf->first) tt_assert(*buf->last_with_datap); if (*buf->last_with_datap) { chain = *buf->last_with_datap; if (chain->off == 0 || buf->total_len == 0) { tt_assert(chain->off == 0) tt_assert(chain == buf->first); tt_assert(buf->total_len == 0); } chain = chain->next; while (chain != NULL) { tt_assert(chain->off == 0); chain = chain->next; } } else { tt_assert(buf->last_with_datap == &buf->first); } tt_assert(found_last_with_datap); tt_assert(sum == buf->total_len); return 1; end: return 0; } static void evbuffer_get_waste(struct evbuffer *buf, size_t *allocatedp, size_t *wastedp, size_t *usedp) { struct evbuffer_chain *chain; size_t a, w, u; int n = 0; u = a = w = 0; chain = buf->first; /* skip empty at start */ while (chain && chain->off==0) { ++n; a += chain->buffer_len; chain = chain->next; } /* first nonempty chain: stuff at the end only is wasted. */ if (chain) { ++n; a += chain->buffer_len; u += chain->off; if (chain->next && chain->next->off) w += (size_t)(chain->buffer_len - (chain->misalign + chain->off)); chain = chain->next; } /* subsequent nonempty chains */ while (chain && chain->off) { ++n; a += chain->buffer_len; w += (size_t)chain->misalign; u += chain->off; if (chain->next && chain->next->off) w += (size_t) (chain->buffer_len - (chain->misalign + chain->off)); chain = chain->next; } /* subsequent empty chains */ while (chain) { ++n; a += chain->buffer_len; } *allocatedp = a; *wastedp = w; *usedp = u; } #define evbuffer_validate(buf) \ TT_STMT_BEGIN if (!_evbuffer_validate(buf)) TT_DIE(("Buffer format invalid")); TT_STMT_END static void test_evbuffer(void *ptr) { static char buffer[512], *tmp; struct evbuffer *evb = evbuffer_new(); struct evbuffer *evb_two = evbuffer_new(); size_t sz_tmp; int i; evbuffer_validate(evb); evbuffer_add_printf(evb, "%s/%d", "hello", 1); evbuffer_validate(evb); tt_assert(evbuffer_get_length(evb) == 7); tt_assert(!memcmp((char*)EVBUFFER_DATA(evb), "hello/1", 1)); evbuffer_add_buffer(evb, evb_two); evbuffer_validate(evb); evbuffer_drain(evb, strlen("hello/")); evbuffer_validate(evb); tt_assert(evbuffer_get_length(evb) == 1); tt_assert(!memcmp((char*)EVBUFFER_DATA(evb), "1", 1)); evbuffer_add_printf(evb_two, "%s", "/hello"); evbuffer_validate(evb); evbuffer_add_buffer(evb, evb_two); evbuffer_validate(evb); tt_assert(evbuffer_get_length(evb_two) == 0); tt_assert(evbuffer_get_length(evb) == 7); tt_assert(!memcmp((char*)EVBUFFER_DATA(evb), "1/hello", 7) != 0); memset(buffer, 0, sizeof(buffer)); evbuffer_add(evb, buffer, sizeof(buffer)); evbuffer_validate(evb); tt_assert(evbuffer_get_length(evb) == 7 + 512); tmp = (char *)evbuffer_pullup(evb, 7 + 512); tt_assert(tmp); tt_assert(!strncmp(tmp, "1/hello", 7)); tt_assert(!memcmp(tmp + 7, buffer, sizeof(buffer))); evbuffer_validate(evb); evbuffer_prepend(evb, "something", 9); evbuffer_validate(evb); evbuffer_prepend(evb, "else", 4); evbuffer_validate(evb); tmp = (char *)evbuffer_pullup(evb, 4 + 9 + 7); tt_assert(!strncmp(tmp, "elsesomething1/hello", 4 + 9 + 7)); evbuffer_validate(evb); evbuffer_drain(evb, -1); evbuffer_validate(evb); evbuffer_drain(evb_two, -1); evbuffer_validate(evb); for (i = 0; i < 3; ++i) { evbuffer_add(evb_two, buffer, sizeof(buffer)); evbuffer_validate(evb_two); evbuffer_add_buffer(evb, evb_two); evbuffer_validate(evb); evbuffer_validate(evb_two); } tt_assert(evbuffer_get_length(evb_two) == 0); tt_assert(evbuffer_get_length(evb) == i * sizeof(buffer)); /* test remove buffer */ sz_tmp = (size_t)(sizeof(buffer)*2.5); evbuffer_remove_buffer(evb, evb_two, sz_tmp); tt_assert(evbuffer_get_length(evb_two) == sz_tmp); tt_assert(evbuffer_get_length(evb) == sizeof(buffer) / 2); evbuffer_validate(evb); if (memcmp(evbuffer_pullup( evb, -1), buffer, sizeof(buffer) / 2) != 0 || memcmp(evbuffer_pullup( evb_two, -1), buffer, sizeof(buffer)) != 0) tt_abort_msg("Pullup did not preserve content"); evbuffer_validate(evb); /* testing one-vector reserve and commit */ { struct evbuffer_iovec v[1]; char *buf; int i, j, r; for (i = 0; i < 3; ++i) { r = evbuffer_reserve_space(evb, 10000, v, 1); tt_int_op(r, ==, 1); tt_assert(v[0].iov_len >= 10000); tt_assert(v[0].iov_base != NULL); evbuffer_validate(evb); buf = v[0].iov_base; for (j = 0; j < 10000; ++j) { buf[j] = j; } evbuffer_validate(evb); tt_int_op(evbuffer_commit_space(evb, v, 1), ==, 0); evbuffer_validate(evb); tt_assert(evbuffer_get_length(evb) >= 10000); evbuffer_drain(evb, j * 5000); evbuffer_validate(evb); } } end: evbuffer_free(evb); evbuffer_free(evb_two); } static void no_cleanup(const void *data, size_t datalen, void *extra) { } static void test_evbuffer_remove_buffer_with_empty(void *ptr) { struct evbuffer *src = evbuffer_new(); struct evbuffer *dst = evbuffer_new(); char buf[2]; evbuffer_validate(src); evbuffer_validate(dst); /* setup the buffers */ /* we need more data in src than we will move later */ evbuffer_add_reference(src, buf, sizeof(buf), no_cleanup, NULL); evbuffer_add_reference(src, buf, sizeof(buf), no_cleanup, NULL); /* we need one buffer in dst and one empty buffer at the end */ evbuffer_add(dst, buf, sizeof(buf)); evbuffer_add_reference(dst, buf, 0, no_cleanup, NULL); evbuffer_validate(src); evbuffer_validate(dst); /* move three bytes over */ evbuffer_remove_buffer(src, dst, 3); evbuffer_validate(src); evbuffer_validate(dst); end: evbuffer_free(src); evbuffer_free(dst); } static void test_evbuffer_reserve2(void *ptr) { /* Test the two-vector cases of reserve/commit. */ struct evbuffer *buf = evbuffer_new(); int n, i; struct evbuffer_iovec v[2]; size_t remaining; char *cp, *cp2; /* First chunk will necessarily be one chunk. Use 512 bytes of it.*/ n = evbuffer_reserve_space(buf, 1024, v, 2); tt_int_op(n, ==, 1); tt_int_op(evbuffer_get_length(buf), ==, 0); tt_assert(v[0].iov_base != NULL); tt_int_op(v[0].iov_len, >=, 1024); memset(v[0].iov_base, 'X', 512); cp = v[0].iov_base; remaining = v[0].iov_len - 512; v[0].iov_len = 512; evbuffer_validate(buf); tt_int_op(0, ==, evbuffer_commit_space(buf, v, 1)); tt_int_op(evbuffer_get_length(buf), ==, 512); evbuffer_validate(buf); /* Ask for another same-chunk request, in an existing chunk. Use 8 * bytes of it. */ n = evbuffer_reserve_space(buf, 32, v, 2); tt_int_op(n, ==, 1); tt_assert(cp + 512 == v[0].iov_base); tt_int_op(remaining, ==, v[0].iov_len); memset(v[0].iov_base, 'Y', 8); v[0].iov_len = 8; tt_int_op(0, ==, evbuffer_commit_space(buf, v, 1)); tt_int_op(evbuffer_get_length(buf), ==, 520); remaining -= 8; evbuffer_validate(buf); /* Now ask for a request that will be split. Use only one byte of it, though. */ n = evbuffer_reserve_space(buf, remaining+64, v, 2); tt_int_op(n, ==, 2); tt_assert(cp + 520 == v[0].iov_base); tt_int_op(remaining, ==, v[0].iov_len); tt_assert(v[1].iov_base); tt_assert(v[1].iov_len >= 64); cp2 = v[1].iov_base; memset(v[0].iov_base, 'Z', 1); v[0].iov_len = 1; tt_int_op(0, ==, evbuffer_commit_space(buf, v, 1)); tt_int_op(evbuffer_get_length(buf), ==, 521); remaining -= 1; evbuffer_validate(buf); /* Now ask for a request that will be split. Use some of the first * part and some of the second. */ n = evbuffer_reserve_space(buf, remaining+64, v, 2); evbuffer_validate(buf); tt_int_op(n, ==, 2); tt_assert(cp + 521 == v[0].iov_base); tt_int_op(remaining, ==, v[0].iov_len); tt_assert(v[1].iov_base == cp2); tt_assert(v[1].iov_len >= 64); memset(v[0].iov_base, 'W', 400); v[0].iov_len = 400; memset(v[1].iov_base, 'x', 60); v[1].iov_len = 60; tt_int_op(0, ==, evbuffer_commit_space(buf, v, 2)); tt_int_op(evbuffer_get_length(buf), ==, 981); evbuffer_validate(buf); /* Now peek to make sure stuff got made how we like. */ memset(v,0,sizeof(v)); n = evbuffer_peek(buf, -1, NULL, v, 2); tt_int_op(n, ==, 2); tt_int_op(v[0].iov_len, ==, 921); tt_int_op(v[1].iov_len, ==, 60); cp = v[0].iov_base; for (i=0; i<512; ++i) tt_int_op(cp[i], ==, 'X'); for (i=512; i<520; ++i) tt_int_op(cp[i], ==, 'Y'); for (i=520; i<521; ++i) tt_int_op(cp[i], ==, 'Z'); for (i=521; i<921; ++i) tt_int_op(cp[i], ==, 'W'); cp = v[1].iov_base; for (i=0; i<60; ++i) tt_int_op(cp[i], ==, 'x'); end: evbuffer_free(buf); } static void test_evbuffer_reserve_many(void *ptr) { /* This is a glass-box test to handle expanding a buffer with more * chunks and reallocating chunks as needed */ struct evbuffer *buf = evbuffer_new(); struct evbuffer_iovec v[8]; int n; size_t sz; int add_data = ptr && !strcmp(ptr, "add"); int fill_first = ptr && !strcmp(ptr, "fill"); char *cp1, *cp2; /* When reserving the the first chunk, we just allocate it */ n = evbuffer_reserve_space(buf, 128, v, 2); evbuffer_validate(buf); tt_int_op(n, ==, 1); tt_assert(v[0].iov_len >= 128); sz = v[0].iov_len; cp1 = v[0].iov_base; if (add_data) { *(char*)v[0].iov_base = 'X'; v[0].iov_len = 1; n = evbuffer_commit_space(buf, v, 1); tt_int_op(n, ==, 0); } else if (fill_first) { memset(v[0].iov_base, 'X', v[0].iov_len); n = evbuffer_commit_space(buf, v, 1); tt_int_op(n, ==, 0); n = evbuffer_reserve_space(buf, 128, v, 2); tt_int_op(n, ==, 1); sz = v[0].iov_len; tt_assert(v[0].iov_base != cp1); cp1 = v[0].iov_base; } /* Make another chunk get added. */ n = evbuffer_reserve_space(buf, sz+128, v, 2); evbuffer_validate(buf); tt_int_op(n, ==, 2); sz = v[0].iov_len + v[1].iov_len; tt_int_op(sz, >=, v[0].iov_len+128); if (add_data) { tt_assert(v[0].iov_base == cp1 + 1); } else { tt_assert(v[0].iov_base == cp1); } cp1 = v[0].iov_base; cp2 = v[1].iov_base; /* And a third chunk. */ n = evbuffer_reserve_space(buf, sz+128, v, 3); evbuffer_validate(buf); tt_int_op(n, ==, 3); tt_assert(cp1 == v[0].iov_base); tt_assert(cp2 == v[1].iov_base); sz = v[0].iov_len + v[1].iov_len + v[2].iov_len; /* Now force a reallocation by asking for more space in only 2 * buffers. */ n = evbuffer_reserve_space(buf, sz+128, v, 2); evbuffer_validate(buf); if (add_data) { tt_int_op(n, ==, 2); tt_assert(cp1 == v[0].iov_base); } else { tt_int_op(n, ==, 1); } end: evbuffer_free(buf); } static void test_evbuffer_expand(void *ptr) { char data[4096]; struct evbuffer *buf; size_t a,w,u; void *buffer; memset(data, 'X', sizeof(data)); /* Make sure that expand() works on an empty buffer */ buf = evbuffer_new(); tt_int_op(evbuffer_expand(buf, 20000), ==, 0); evbuffer_validate(buf); a=w=u=0; evbuffer_get_waste(buf, &a,&w,&u); tt_assert(w == 0); tt_assert(u == 0); tt_assert(a >= 20000); tt_assert(buf->first); tt_assert(buf->first == buf->last); tt_assert(buf->first->off == 0); tt_assert(buf->first->buffer_len >= 20000); /* Make sure that expand() works as a no-op when there's enough * contiguous space already. */ buffer = buf->first->buffer; evbuffer_add(buf, data, 1024); tt_int_op(evbuffer_expand(buf, 1024), ==, 0); tt_assert(buf->first->buffer == buffer); evbuffer_validate(buf); evbuffer_free(buf); /* Make sure that expand() can work by moving misaligned data * when it makes sense to do so. */ buf = evbuffer_new(); evbuffer_add(buf, data, 400); { int n = (int)(buf->first->buffer_len - buf->first->off - 1); tt_assert(n < (int)sizeof(data)); evbuffer_add(buf, data, n); } tt_assert(buf->first == buf->last); tt_assert(buf->first->off == buf->first->buffer_len - 1); evbuffer_drain(buf, buf->first->off - 1); tt_assert(1 == evbuffer_get_length(buf)); tt_assert(buf->first->misalign > 0); tt_assert(buf->first->off == 1); buffer = buf->first->buffer; tt_assert(evbuffer_expand(buf, 40) == 0); tt_assert(buf->first == buf->last); tt_assert(buf->first->off == 1); tt_assert(buf->first->buffer == buffer); tt_assert(buf->first->misalign == 0); evbuffer_validate(buf); evbuffer_free(buf); /* add, expand, pull-up: This used to crash libevent. */ buf = evbuffer_new(); evbuffer_add(buf, data, sizeof(data)); evbuffer_add(buf, data, sizeof(data)); evbuffer_add(buf, data, sizeof(data)); evbuffer_validate(buf); evbuffer_expand(buf, 1024); evbuffer_validate(buf); evbuffer_pullup(buf, -1); evbuffer_validate(buf); end: evbuffer_free(buf); } static void test_evbuffer_add1(void *ptr) { struct evbuffer *buf; char *str; buf = evbuffer_new(); evbuffer_add(buf, "1", 1); evbuffer_validate(buf); evbuffer_expand(buf, 2048); evbuffer_validate(buf); evbuffer_add(buf, "2", 1); evbuffer_validate(buf); evbuffer_add_printf(buf, "3"); evbuffer_validate(buf); tt_assert(evbuffer_get_length(buf) == 3); str = (char *)evbuffer_pullup(buf, -1); tt_assert(str[0] == '1'); tt_assert(str[1] == '2'); tt_assert(str[2] == '3'); end: evbuffer_free(buf); } static void test_evbuffer_add2(void *ptr) { struct evbuffer *buf; static char data[4096]; int data_len = MIN_BUFFER_SIZE-EVBUFFER_CHAIN_SIZE-10; char *str; int len; memset(data, 'P', sizeof(data)); buf = evbuffer_new(); evbuffer_add(buf, data, data_len); evbuffer_validate(buf); evbuffer_expand(buf, 100); evbuffer_validate(buf); evbuffer_add(buf, "2", 1); evbuffer_validate(buf); evbuffer_add_printf(buf, "3"); evbuffer_validate(buf); len = evbuffer_get_length(buf); tt_assert(len == data_len+2); str = (char *)evbuffer_pullup(buf, -1); tt_assert(str[len-3] == 'P'); tt_assert(str[len-2] == '2'); tt_assert(str[len-1] == '3'); end: evbuffer_free(buf); } static int reference_cb_called; static void reference_cb(const void *data, size_t len, void *extra) { tt_str_op(data, ==, "this is what we add as read-only memory."); tt_int_op(len, ==, strlen(data)); tt_want(extra == (void *)0xdeadaffe); ++reference_cb_called; end: ; } static void test_evbuffer_reference(void *ptr) { struct evbuffer *src = evbuffer_new(); struct evbuffer *dst = evbuffer_new(); struct evbuffer_iovec v[1]; const char *data = "this is what we add as read-only memory."; reference_cb_called = 0; tt_assert(evbuffer_add_reference(src, data, strlen(data), reference_cb, (void *)0xdeadaffe) != -1); evbuffer_reserve_space(dst, strlen(data), v, 1); tt_assert(evbuffer_remove(src, v[0].iov_base, 10) != -1); evbuffer_validate(src); evbuffer_validate(dst); /* make sure that we don't write data at the beginning */ evbuffer_prepend(src, "aaaaa", 5); evbuffer_validate(src); evbuffer_drain(src, 5); tt_assert(evbuffer_remove(src, ((char*)(v[0].iov_base)) + 10, strlen(data) - 10) != -1); v[0].iov_len = strlen(data); evbuffer_commit_space(dst, v, 1); evbuffer_validate(src); evbuffer_validate(dst); tt_int_op(reference_cb_called, ==, 1); tt_assert(!memcmp(evbuffer_pullup(dst, strlen(data)), data, strlen(data))); evbuffer_validate(dst); end: evbuffer_free(dst); evbuffer_free(src); } static void test_evbuffer_reference2(void *ptr) { struct evbuffer *buf; static char data[4096]; int data_len = MIN_BUFFER_SIZE-EVBUFFER_CHAIN_SIZE-10; char *str; int len; memset(data, 'P', sizeof(data)); buf = evbuffer_new(); evbuffer_add(buf, data, data_len); evbuffer_validate(buf); evbuffer_expand(buf, 100); evbuffer_validate(buf); evbuffer_add_reference(buf, "2", 1, no_cleanup, NULL); evbuffer_validate(buf); evbuffer_add_printf(buf, "3"); evbuffer_validate(buf); len = evbuffer_get_length(buf); tt_assert(len == data_len+2); str = (char *)evbuffer_pullup(buf, -1); tt_assert(str[len-3] == 'P'); tt_assert(str[len-2] == '2'); tt_assert(str[len-1] == '3'); end: evbuffer_free(buf); } int _evbuffer_testing_use_sendfile(void); int _evbuffer_testing_use_mmap(void); int _evbuffer_testing_use_linear_file_access(void); static void test_evbuffer_add_file(void *ptr) { const char *impl = ptr; struct evbuffer *src = evbuffer_new(); const char *data = "this is what we add as file system data."; size_t datalen; const char *compare; int fd = -1; evutil_socket_t pair[2] = {-1, -1}; int r=0, n_written=0; /* Add a test for a big file. XXXX */ tt_assert(impl); if (!strcmp(impl, "sendfile")) { if (!_evbuffer_testing_use_sendfile()) tt_skip(); TT_BLATHER(("Using sendfile-based implementaion")); } else if (!strcmp(impl, "mmap")) { if (!_evbuffer_testing_use_mmap()) tt_skip(); TT_BLATHER(("Using mmap-based implementaion")); } else if (!strcmp(impl, "linear")) { if (!_evbuffer_testing_use_linear_file_access()) tt_skip(); TT_BLATHER(("Using read-based implementaion")); } else { TT_DIE(("Didn't recognize the implementation")); } /* Say that it drains to a fd so that we can use sendfile. */ evbuffer_set_flags(src, EVBUFFER_FLAG_DRAINS_TO_FD); #if defined(_EVENT_HAVE_SENDFILE) && defined(__sun__) && defined(__svr4__) /* We need to use a pair of AF_INET sockets, since Solaris doesn't support sendfile() over AF_UNIX. */ if (evutil_ersatz_socketpair(AF_INET, SOCK_STREAM, 0, pair) == -1) tt_abort_msg("ersatz_socketpair failed"); #else if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1) tt_abort_msg("socketpair failed"); #endif datalen = strlen(data); fd = regress_make_tmpfile(data, datalen); tt_assert(fd != -1); tt_assert(evbuffer_add_file(src, fd, 0, datalen) != -1); evbuffer_validate(src); while (evbuffer_get_length(src) && (r = evbuffer_write(src, pair[0])) > 0) { evbuffer_validate(src); n_written += r; } tt_int_op(r, !=, -1); tt_int_op(n_written, ==, datalen); evbuffer_validate(src); tt_int_op(evbuffer_read(src, pair[1], (int)strlen(data)), ==, datalen); evbuffer_validate(src); compare = (char *)evbuffer_pullup(src, datalen); tt_assert(compare != NULL); if (memcmp(compare, data, datalen)) tt_abort_msg("Data from add_file differs."); evbuffer_validate(src); end: if (pair[0] >= 0) evutil_closesocket(pair[0]); if (pair[1] >= 0) evutil_closesocket(pair[1]); evbuffer_free(src); } #ifndef _EVENT_DISABLE_MM_REPLACEMENT static void * failing_malloc(size_t how_much) { errno = ENOMEM; return NULL; } #endif static void test_evbuffer_readln(void *ptr) { struct evbuffer *evb = evbuffer_new(); struct evbuffer *evb_tmp = evbuffer_new(); const char *s; char *cp = NULL; size_t sz; #define tt_line_eq(content) \ TT_STMT_BEGIN \ if (!cp || sz != strlen(content) || strcmp(cp, content)) { \ TT_DIE(("Wanted %s; got %s [%d]", content, cp, (int)sz)); \ } \ TT_STMT_END /* Test EOL_ANY. */ s = "complex silly newline\r\n\n\r\n\n\rmore\0\n"; evbuffer_add(evb, s, strlen(s)+2); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_ANY); tt_line_eq("complex silly newline"); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_ANY); if (!cp || sz != 5 || memcmp(cp, "more\0\0", 6)) tt_abort_msg("Not as expected"); tt_uint_op(evbuffer_get_length(evb), ==, 0); evbuffer_validate(evb); s = "\nno newline"; evbuffer_add(evb, s, strlen(s)); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_ANY); tt_line_eq(""); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_ANY); tt_assert(!cp); evbuffer_validate(evb); evbuffer_drain(evb, evbuffer_get_length(evb)); tt_assert(evbuffer_get_length(evb) == 0); evbuffer_validate(evb); /* Test EOL_CRLF */ s = "Line with\rin the middle\nLine with good crlf\r\n\nfinal\n"; evbuffer_add(evb, s, strlen(s)); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF); tt_line_eq("Line with\rin the middle"); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF); tt_line_eq("Line with good crlf"); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF); tt_line_eq(""); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF); tt_line_eq("final"); s = "x"; evbuffer_validate(evb); evbuffer_add(evb, s, 1); evbuffer_validate(evb); free(cp); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF); tt_assert(!cp); evbuffer_validate(evb); /* Test CRLF_STRICT */ s = " and a bad crlf\nand a good one\r\n\r\nMore\r"; evbuffer_add(evb, s, strlen(s)); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq("x and a bad crlf\nand a good one"); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq(""); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_assert(!cp); evbuffer_validate(evb); evbuffer_add(evb, "\n", 1); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq("More"); free(cp); tt_assert(evbuffer_get_length(evb) == 0); evbuffer_validate(evb); s = "An internal CR\r is not an eol\r\nNor is a lack of one"; evbuffer_add(evb, s, strlen(s)); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq("An internal CR\r is not an eol"); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_assert(!cp); evbuffer_validate(evb); evbuffer_add(evb, "\r\n", 2); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq("Nor is a lack of one"); free(cp); tt_assert(evbuffer_get_length(evb) == 0); evbuffer_validate(evb); /* Test LF */ s = "An\rand a nl\n\nText"; evbuffer_add(evb, s, strlen(s)); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_LF); tt_line_eq("An\rand a nl"); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_LF); tt_line_eq(""); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_LF); tt_assert(!cp); free(cp); evbuffer_add(evb, "\n", 1); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_LF); tt_line_eq("Text"); free(cp); evbuffer_validate(evb); /* Test CRLF_STRICT - across boundaries*/ s = " and a bad crlf\nand a good one\r"; evbuffer_add(evb_tmp, s, strlen(s)); evbuffer_validate(evb); evbuffer_add_buffer(evb, evb_tmp); evbuffer_validate(evb); s = "\n\r"; evbuffer_add(evb_tmp, s, strlen(s)); evbuffer_validate(evb); evbuffer_add_buffer(evb, evb_tmp); evbuffer_validate(evb); s = "\nMore\r"; evbuffer_add(evb_tmp, s, strlen(s)); evbuffer_validate(evb); evbuffer_add_buffer(evb, evb_tmp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq(" and a bad crlf\nand a good one"); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq(""); free(cp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_assert(!cp); free(cp); evbuffer_validate(evb); evbuffer_add(evb, "\n", 1); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_CRLF_STRICT); tt_line_eq("More"); free(cp); cp = NULL; evbuffer_validate(evb); tt_assert(evbuffer_get_length(evb) == 0); /* Test memory problem*/ s = "one line\ntwo line\nblue line"; evbuffer_add(evb_tmp, s, strlen(s)); evbuffer_validate(evb); evbuffer_add_buffer(evb, evb_tmp); evbuffer_validate(evb); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_LF); tt_line_eq("one line"); free(cp); cp = NULL; evbuffer_validate(evb); /* the next call to readline should fail */ #ifndef _EVENT_DISABLE_MM_REPLACEMENT event_set_mem_functions(failing_malloc, realloc, free); cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_LF); tt_assert(cp == NULL); evbuffer_validate(evb); /* now we should get the next line back */ event_set_mem_functions(malloc, realloc, free); #endif cp = evbuffer_readln(evb, &sz, EVBUFFER_EOL_LF); tt_line_eq("two line"); free(cp); cp = NULL; evbuffer_validate(evb); end: evbuffer_free(evb); evbuffer_free(evb_tmp); if (cp) free(cp); } static void test_evbuffer_search_eol(void *ptr) { struct evbuffer *buf = evbuffer_new(); struct evbuffer_ptr ptr1, ptr2; const char *s; size_t eol_len; s = "string! \r\n\r\nx\n"; evbuffer_add(buf, s, strlen(s)); eol_len = -1; ptr1 = evbuffer_search_eol(buf, NULL, &eol_len, EVBUFFER_EOL_CRLF); tt_int_op(ptr1.pos, ==, 8); tt_int_op(eol_len, ==, 2); eol_len = -1; ptr2 = evbuffer_search_eol(buf, &ptr1, &eol_len, EVBUFFER_EOL_CRLF); tt_int_op(ptr2.pos, ==, 8); tt_int_op(eol_len, ==, 2); evbuffer_ptr_set(buf, &ptr1, 1, EVBUFFER_PTR_ADD); eol_len = -1; ptr2 = evbuffer_search_eol(buf, &ptr1, &eol_len, EVBUFFER_EOL_CRLF); tt_int_op(ptr2.pos, ==, 9); tt_int_op(eol_len, ==, 1); eol_len = -1; ptr2 = evbuffer_search_eol(buf, &ptr1, &eol_len, EVBUFFER_EOL_CRLF_STRICT); tt_int_op(ptr2.pos, ==, 10); tt_int_op(eol_len, ==, 2); eol_len = -1; ptr1 = evbuffer_search_eol(buf, NULL, &eol_len, EVBUFFER_EOL_LF); tt_int_op(ptr1.pos, ==, 9); tt_int_op(eol_len, ==, 1); eol_len = -1; ptr2 = evbuffer_search_eol(buf, &ptr1, &eol_len, EVBUFFER_EOL_LF); tt_int_op(ptr2.pos, ==, 9); tt_int_op(eol_len, ==, 1); evbuffer_ptr_set(buf, &ptr1, 1, EVBUFFER_PTR_ADD); eol_len = -1; ptr2 = evbuffer_search_eol(buf, &ptr1, &eol_len, EVBUFFER_EOL_LF); tt_int_op(ptr2.pos, ==, 11); tt_int_op(eol_len, ==, 1); end: evbuffer_free(buf); } static void test_evbuffer_iterative(void *ptr) { struct evbuffer *buf = evbuffer_new(); const char *abc = "abcdefghijklmnopqrstvuwxyzabcdefghijklmnopqrstvuwxyzabcdefghijklmnopqrstvuwxyzabcdefghijklmnopqrstvuwxyz"; unsigned i, j, sum, n; sum = 0; n = 0; for (i = 0; i < 1000; ++i) { for (j = 1; j < strlen(abc); ++j) { char format[32]; evutil_snprintf(format, sizeof(format), "%%%u.%us", j, j); evbuffer_add_printf(buf, format, abc); /* Only check for rep violations every so often. Walking over the whole list of chains can get pretty expensive as it gets long. */ if ((n % 337) == 0) evbuffer_validate(buf); sum += j; n++; } } evbuffer_validate(buf); tt_uint_op(sum, ==, evbuffer_get_length(buf)); { size_t a,w,u; a=w=u=0; evbuffer_get_waste(buf, &a, &w, &u); if (0) printf("Allocated: %u.\nWasted: %u.\nUsed: %u.", (unsigned)a, (unsigned)w, (unsigned)u); tt_assert( ((double)w)/a < .125); } end: evbuffer_free(buf); } static void test_evbuffer_find(void *ptr) { u_char* p; const char* test1 = "1234567890\r\n"; const char* test2 = "1234567890\r"; #define EVBUFFER_INITIAL_LENGTH 256 char test3[EVBUFFER_INITIAL_LENGTH]; unsigned int i; struct evbuffer * buf = evbuffer_new(); tt_assert(buf); /* make sure evbuffer_find doesn't match past the end of the buffer */ evbuffer_add(buf, (u_char*)test1, strlen(test1)); evbuffer_validate(buf); evbuffer_drain(buf, strlen(test1)); evbuffer_validate(buf); evbuffer_add(buf, (u_char*)test2, strlen(test2)); evbuffer_validate(buf); p = evbuffer_find(buf, (u_char*)"\r\n", 2); tt_want(p == NULL); /* * drain the buffer and do another find; in r309 this would * read past the allocated buffer causing a valgrind error. */ evbuffer_drain(buf, strlen(test2)); evbuffer_validate(buf); for (i = 0; i < EVBUFFER_INITIAL_LENGTH; ++i) test3[i] = 'a'; test3[EVBUFFER_INITIAL_LENGTH - 1] = 'x'; evbuffer_add(buf, (u_char *)test3, EVBUFFER_INITIAL_LENGTH); evbuffer_validate(buf); p = evbuffer_find(buf, (u_char *)"xy", 2); tt_want(p == NULL); /* simple test for match at end of allocated buffer */ p = evbuffer_find(buf, (u_char *)"ax", 2); tt_assert(p != NULL); tt_want(strncmp((char*)p, "ax", 2) == 0); end: if (buf) evbuffer_free(buf); } static void test_evbuffer_ptr_set(void *ptr) { struct evbuffer *buf = evbuffer_new(); struct evbuffer_ptr pos; struct evbuffer_iovec v[1]; tt_assert(buf); /* create some chains */ evbuffer_reserve_space(buf, 5000, v, 1); v[0].iov_len = 5000; memset(v[0].iov_base, 1, v[0].iov_len); evbuffer_commit_space(buf, v, 1); evbuffer_validate(buf); evbuffer_reserve_space(buf, 4000, v, 1); v[0].iov_len = 4000; memset(v[0].iov_base, 2, v[0].iov_len); evbuffer_commit_space(buf, v, 1); evbuffer_reserve_space(buf, 3000, v, 1); v[0].iov_len = 3000; memset(v[0].iov_base, 3, v[0].iov_len); evbuffer_commit_space(buf, v, 1); evbuffer_validate(buf); tt_int_op(evbuffer_get_length(buf), ==, 12000); tt_assert(evbuffer_ptr_set(buf, &pos, 13000, EVBUFFER_PTR_SET) == -1); tt_assert(pos.pos == -1); tt_assert(evbuffer_ptr_set(buf, &pos, 0, EVBUFFER_PTR_SET) == 0); tt_assert(pos.pos == 0); tt_assert(evbuffer_ptr_set(buf, &pos, 13000, EVBUFFER_PTR_ADD) == -1); tt_assert(evbuffer_ptr_set(buf, &pos, 0, EVBUFFER_PTR_SET) == 0); tt_assert(pos.pos == 0); tt_assert(evbuffer_ptr_set(buf, &pos, 10000, EVBUFFER_PTR_ADD) == 0); tt_assert(pos.pos == 10000); tt_assert(evbuffer_ptr_set(buf, &pos, 1000, EVBUFFER_PTR_ADD) == 0); tt_assert(pos.pos == 11000); tt_assert(evbuffer_ptr_set(buf, &pos, 1000, EVBUFFER_PTR_ADD) == -1); tt_assert(pos.pos == -1); end: if (buf) evbuffer_free(buf); } static void test_evbuffer_search(void *ptr) { struct evbuffer *buf = evbuffer_new(); struct evbuffer *tmp = evbuffer_new(); struct evbuffer_ptr pos, end; tt_assert(buf); tt_assert(tmp); /* set up our chains */ evbuffer_add_printf(tmp, "hello"); /* 5 chars */ evbuffer_add_buffer(buf, tmp); evbuffer_add_printf(tmp, "foo"); /* 3 chars */ evbuffer_add_buffer(buf, tmp); evbuffer_add_printf(tmp, "cat"); /* 3 chars */ evbuffer_add_buffer(buf, tmp); evbuffer_add_printf(tmp, "attack"); evbuffer_add_buffer(buf, tmp); pos = evbuffer_search(buf, "attack", 6, NULL); tt_int_op(pos.pos, ==, 11); pos = evbuffer_search(buf, "attacker", 8, NULL); tt_int_op(pos.pos, ==, -1); /* test continuing search */ pos = evbuffer_search(buf, "oc", 2, NULL); tt_int_op(pos.pos, ==, 7); pos = evbuffer_search(buf, "cat", 3, &pos); tt_int_op(pos.pos, ==, 8); pos = evbuffer_search(buf, "tacking", 7, &pos); tt_int_op(pos.pos, ==, -1); evbuffer_ptr_set(buf, &pos, 5, EVBUFFER_PTR_SET); pos = evbuffer_search(buf, "foo", 3, &pos); tt_int_op(pos.pos, ==, 5); evbuffer_ptr_set(buf, &pos, 2, EVBUFFER_PTR_ADD); pos = evbuffer_search(buf, "tat", 3, &pos); tt_int_op(pos.pos, ==, 10); /* test bounded search. */ /* Set "end" to the first t in "attack". */ evbuffer_ptr_set(buf, &end, 12, EVBUFFER_PTR_SET); pos = evbuffer_search_range(buf, "foo", 3, NULL, &end); tt_int_op(pos.pos, ==, 5); pos = evbuffer_search_range(buf, "foocata", 7, NULL, &end); tt_int_op(pos.pos, ==, 5); pos = evbuffer_search_range(buf, "foocatat", 8, NULL, &end); tt_int_op(pos.pos, ==, -1); pos = evbuffer_search_range(buf, "ack", 3, NULL, &end); tt_int_op(pos.pos, ==, -1); end: if (buf) evbuffer_free(buf); if (tmp) evbuffer_free(tmp); } static void log_change_callback(struct evbuffer *buffer, const struct evbuffer_cb_info *cbinfo, void *arg) { size_t old_len = cbinfo->orig_size; size_t new_len = old_len + cbinfo->n_added - cbinfo->n_deleted; struct evbuffer *out = arg; evbuffer_add_printf(out, "%lu->%lu; ", (unsigned long)old_len, (unsigned long)new_len); } static void self_draining_callback(struct evbuffer *evbuffer, size_t old_len, size_t new_len, void *arg) { if (new_len > old_len) evbuffer_drain(evbuffer, new_len); } static void test_evbuffer_callbacks(void *ptr) { struct evbuffer *buf = evbuffer_new(); struct evbuffer *buf_out1 = evbuffer_new(); struct evbuffer *buf_out2 = evbuffer_new(); struct evbuffer_cb_entry *cb1, *cb2; tt_assert(buf); tt_assert(buf_out1); tt_assert(buf_out2); cb1 = evbuffer_add_cb(buf, log_change_callback, buf_out1); cb2 = evbuffer_add_cb(buf, log_change_callback, buf_out2); /* Let's run through adding and deleting some stuff from the buffer * and turning the callbacks on and off and removing them. The callback * adds a summary of length changes to buf_out1/buf_out2 when called. */ /* size: 0-> 36. */ evbuffer_add_printf(buf, "The %d magic words are spotty pudding", 2); evbuffer_validate(buf); evbuffer_cb_clear_flags(buf, cb2, EVBUFFER_CB_ENABLED); evbuffer_drain(buf, 10); /*36->26*/ evbuffer_validate(buf); evbuffer_prepend(buf, "Hello", 5);/*26->31*/ evbuffer_cb_set_flags(buf, cb2, EVBUFFER_CB_ENABLED); evbuffer_add_reference(buf, "Goodbye", 7, NULL, NULL); /*31->38*/ evbuffer_remove_cb_entry(buf, cb1); evbuffer_validate(buf); evbuffer_drain(buf, evbuffer_get_length(buf)); /*38->0*/; tt_assert(-1 == evbuffer_remove_cb(buf, log_change_callback, NULL)); evbuffer_add(buf, "X", 1); /* 0->1 */ tt_assert(!evbuffer_remove_cb(buf, log_change_callback, buf_out2)); evbuffer_validate(buf); tt_str_op(evbuffer_pullup(buf_out1, -1), ==, "0->36; 36->26; 26->31; 31->38; "); tt_str_op(evbuffer_pullup(buf_out2, -1), ==, "0->36; 31->38; 38->0; 0->1; "); evbuffer_drain(buf_out1, evbuffer_get_length(buf_out1)); evbuffer_drain(buf_out2, evbuffer_get_length(buf_out2)); /* Let's test the obsolete buffer_setcb function too. */ cb1 = evbuffer_add_cb(buf, log_change_callback, buf_out1); tt_assert(cb1 != NULL); cb2 = evbuffer_add_cb(buf, log_change_callback, buf_out2); tt_assert(cb2 != NULL); evbuffer_setcb(buf, self_draining_callback, NULL); evbuffer_add_printf(buf, "This should get drained right away."); tt_uint_op(evbuffer_get_length(buf), ==, 0); tt_uint_op(evbuffer_get_length(buf_out1), ==, 0); tt_uint_op(evbuffer_get_length(buf_out2), ==, 0); evbuffer_setcb(buf, NULL, NULL); evbuffer_add_printf(buf, "This will not."); tt_str_op(evbuffer_pullup(buf, -1), ==, "This will not."); evbuffer_validate(buf); evbuffer_drain(buf, evbuffer_get_length(buf)); evbuffer_validate(buf); #if 0 /* Now let's try a suspended callback. */ cb1 = evbuffer_add_cb(buf, log_change_callback, buf_out1); cb2 = evbuffer_add_cb(buf, log_change_callback, buf_out2); evbuffer_cb_suspend(buf,cb2); evbuffer_prepend(buf,"Hello world",11); /*0->11*/ evbuffer_validate(buf); evbuffer_cb_suspend(buf,cb1); evbuffer_add(buf,"more",4); /* 11->15 */ evbuffer_cb_unsuspend(buf,cb2); evbuffer_drain(buf, 4); /* 15->11 */ evbuffer_cb_unsuspend(buf,cb1); evbuffer_drain(buf, evbuffer_get_length(buf)); /* 11->0 */ tt_str_op(evbuffer_pullup(buf_out1, -1), ==, "0->11; 11->11; 11->0; "); tt_str_op(evbuffer_pullup(buf_out2, -1), ==, "0->15; 15->11; 11->0; "); #endif end: if (buf) evbuffer_free(buf); if (buf_out1) evbuffer_free(buf_out1); if (buf_out2) evbuffer_free(buf_out2); } static int ref_done_cb_called_count = 0; static void *ref_done_cb_called_with = NULL; static const void *ref_done_cb_called_with_data = NULL; static size_t ref_done_cb_called_with_len = 0; static void ref_done_cb(const void *data, size_t len, void *info) { ++ref_done_cb_called_count; ref_done_cb_called_with = info; ref_done_cb_called_with_data = data; ref_done_cb_called_with_len = len; } static void test_evbuffer_add_reference(void *ptr) { const char chunk1[] = "If you have found the answer to such a problem"; const char chunk2[] = "you ought to write it up for publication"; /* -- Knuth's "Notes on the Exercises" from TAOCP */ char tmp[16]; size_t len1 = strlen(chunk1), len2=strlen(chunk2); struct evbuffer *buf1 = NULL, *buf2 = NULL; buf1 = evbuffer_new(); tt_assert(buf1); evbuffer_add_reference(buf1, chunk1, len1, ref_done_cb, (void*)111); evbuffer_add(buf1, ", ", 2); evbuffer_add_reference(buf1, chunk2, len2, ref_done_cb, (void*)222); tt_int_op(evbuffer_get_length(buf1), ==, len1+len2+2); /* Make sure we can drain a little from a reference. */ tt_int_op(evbuffer_remove(buf1, tmp, 6), ==, 6); tt_int_op(memcmp(tmp, "If you", 6), ==, 0); tt_int_op(evbuffer_remove(buf1, tmp, 5), ==, 5); tt_int_op(memcmp(tmp, " have", 5), ==, 0); /* Make sure that prepending does not meddle with immutable data */ tt_int_op(evbuffer_prepend(buf1, "I have ", 7), ==, 0); tt_int_op(memcmp(chunk1, "If you", 6), ==, 0); evbuffer_validate(buf1); /* Make sure that when the chunk is over, the callback is invoked. */ evbuffer_drain(buf1, 7); /* Remove prepended stuff. */ evbuffer_drain(buf1, len1-11-1); /* remove all but one byte of chunk1 */ tt_int_op(ref_done_cb_called_count, ==, 0); evbuffer_remove(buf1, tmp, 1); tt_int_op(tmp[0], ==, 'm'); tt_assert(ref_done_cb_called_with == (void*)111); tt_assert(ref_done_cb_called_with_data == chunk1); tt_assert(ref_done_cb_called_with_len == len1); tt_int_op(ref_done_cb_called_count, ==, 1); evbuffer_validate(buf1); /* Drain some of the remaining chunk, then add it to another buffer */ evbuffer_drain(buf1, 6); /* Remove the ", you ". */ buf2 = evbuffer_new(); tt_assert(buf2); tt_int_op(ref_done_cb_called_count, ==, 1); evbuffer_add(buf2, "I ", 2); evbuffer_add_buffer(buf2, buf1); tt_int_op(ref_done_cb_called_count, ==, 1); evbuffer_remove(buf2, tmp, 16); tt_int_op(memcmp("I ought to write", tmp, 16), ==, 0); evbuffer_drain(buf2, evbuffer_get_length(buf2)); tt_int_op(ref_done_cb_called_count, ==, 2); tt_assert(ref_done_cb_called_with == (void*)222); evbuffer_validate(buf2); /* Now add more stuff to buf1 and make sure that it gets removed on * free. */ evbuffer_add(buf1, "You shake and shake the ", 24); evbuffer_add_reference(buf1, "ketchup bottle", 14, ref_done_cb, (void*)3333); evbuffer_add(buf1, ". Nothing comes and then a lot'll.", 42); evbuffer_free(buf1); buf1 = NULL; tt_int_op(ref_done_cb_called_count, ==, 3); tt_assert(ref_done_cb_called_with == (void*)3333); end: if (buf1) evbuffer_free(buf1); if (buf2) evbuffer_free(buf2); } /* Some cases that we didn't get in test_evbuffer() above, for more coverage. */ static void test_evbuffer_prepend(void *ptr) { struct evbuffer *buf1 = NULL, *buf2 = NULL; char tmp[128]; int n; buf1 = evbuffer_new(); tt_assert(buf1); /* Case 0: The evbuffer is entirely empty. */ evbuffer_prepend(buf1, "This string has 29 characters", 29); evbuffer_validate(buf1); /* Case 1: Prepend goes entirely in new chunk. */ evbuffer_prepend(buf1, "Short.", 6); evbuffer_validate(buf1); /* Case 2: prepend goes entirely in first chunk. */ evbuffer_drain(buf1, 6+11); evbuffer_prepend(buf1, "it", 2); evbuffer_validate(buf1); tt_assert(!memcmp(buf1->first->buffer+buf1->first->misalign, "it has", 6)); /* Case 3: prepend is split over multiple chunks. */ evbuffer_prepend(buf1, "It is no longer true to say ", 28); evbuffer_validate(buf1); n = evbuffer_remove(buf1, tmp, sizeof(tmp)-1); tmp[n]='\0'; tt_str_op(tmp,==,"It is no longer true to say it has 29 characters"); buf2 = evbuffer_new(); tt_assert(buf2); /* Case 4: prepend a buffer to an empty buffer. */ n = 999; evbuffer_add_printf(buf1, "Here is string %d. ", n++); evbuffer_prepend_buffer(buf2, buf1); evbuffer_validate(buf2); /* Case 5: prepend a buffer to a nonempty buffer. */ evbuffer_add_printf(buf1, "Here is string %d. ", n++); evbuffer_prepend_buffer(buf2, buf1); evbuffer_validate(buf2); evbuffer_validate(buf1); n = evbuffer_remove(buf2, tmp, sizeof(tmp)-1); tmp[n]='\0'; tt_str_op(tmp,==,"Here is string 1000. Here is string 999. "); end: if (buf1) evbuffer_free(buf1); if (buf2) evbuffer_free(buf2); } static void test_evbuffer_peek(void *info) { struct evbuffer *buf = NULL, *tmp_buf = NULL; int i; struct evbuffer_iovec v[20]; struct evbuffer_ptr ptr; #define tt_iov_eq(v, s) \ tt_int_op((v)->iov_len, ==, strlen(s)); \ tt_assert(!memcmp((v)->iov_base, (s), strlen(s))) /* Let's make a very fragmented buffer. */ buf = evbuffer_new(); tmp_buf = evbuffer_new(); for (i = 0; i < 16; ++i) { evbuffer_add_printf(tmp_buf, "Contents of chunk [%d]\n", i); evbuffer_add_buffer(buf, tmp_buf); } /* How many chunks do we need for everything? */ i = evbuffer_peek(buf, -1, NULL, NULL, 0); tt_int_op(i, ==, 16); /* Simple peek: get everything. */ i = evbuffer_peek(buf, -1, NULL, v, 20); tt_int_op(i, ==, 16); /* we used only 16 chunks. */ tt_iov_eq(&v[0], "Contents of chunk [0]\n"); tt_iov_eq(&v[3], "Contents of chunk [3]\n"); tt_iov_eq(&v[12], "Contents of chunk [12]\n"); tt_iov_eq(&v[15], "Contents of chunk [15]\n"); /* Just get one chunk worth. */ memset(v, 0, sizeof(v)); i = evbuffer_peek(buf, -1, NULL, v, 1); tt_int_op(i, ==, 1); tt_iov_eq(&v[0], "Contents of chunk [0]\n"); tt_assert(v[1].iov_base == NULL); /* Suppose we want at least the first 40 bytes. */ memset(v, 0, sizeof(v)); i = evbuffer_peek(buf, 40, NULL, v, 16); tt_int_op(i, ==, 2); tt_iov_eq(&v[0], "Contents of chunk [0]\n"); tt_iov_eq(&v[1], "Contents of chunk [1]\n"); tt_assert(v[2].iov_base == NULL); /* How many chunks do we need for 100 bytes? */ memset(v, 0, sizeof(v)); i = evbuffer_peek(buf, 100, NULL, NULL, 0); tt_int_op(i, ==, 5); tt_assert(v[0].iov_base == NULL); /* Now we ask for more bytes than we provide chunks for */ memset(v, 0, sizeof(v)); i = evbuffer_peek(buf, 60, NULL, v, 1); tt_int_op(i, ==, 3); tt_iov_eq(&v[0], "Contents of chunk [0]\n"); tt_assert(v[1].iov_base == NULL); /* Now we ask for more bytes than the buffer has. */ memset(v, 0, sizeof(v)); i = evbuffer_peek(buf, 65536, NULL, v, 20); tt_int_op(i, ==, 16); /* we used only 16 chunks. */ tt_iov_eq(&v[0], "Contents of chunk [0]\n"); tt_iov_eq(&v[3], "Contents of chunk [3]\n"); tt_iov_eq(&v[12], "Contents of chunk [12]\n"); tt_iov_eq(&v[15], "Contents of chunk [15]\n"); tt_assert(v[16].iov_base == NULL); /* What happens if we try an empty buffer? */ memset(v, 0, sizeof(v)); i = evbuffer_peek(tmp_buf, -1, NULL, v, 20); tt_int_op(i, ==, 0); tt_assert(v[0].iov_base == NULL); memset(v, 0, sizeof(v)); i = evbuffer_peek(tmp_buf, 50, NULL, v, 20); tt_int_op(i, ==, 0); tt_assert(v[0].iov_base == NULL); /* Okay, now time to have fun with pointers. */ memset(v, 0, sizeof(v)); evbuffer_ptr_set(buf, &ptr, 30, EVBUFFER_PTR_SET); i = evbuffer_peek(buf, 50, &ptr, v, 20); tt_int_op(i, ==, 3); tt_iov_eq(&v[0], " of chunk [1]\n"); tt_iov_eq(&v[1], "Contents of chunk [2]\n"); tt_iov_eq(&v[2], "Contents of chunk [3]\n"); /*more than we asked for*/ /* advance to the start of another chain. */ memset(v, 0, sizeof(v)); evbuffer_ptr_set(buf, &ptr, 14, EVBUFFER_PTR_ADD); i = evbuffer_peek(buf, 44, &ptr, v, 20); tt_int_op(i, ==, 2); tt_iov_eq(&v[0], "Contents of chunk [2]\n"); tt_iov_eq(&v[1], "Contents of chunk [3]\n"); /*more than we asked for*/ end: if (buf) evbuffer_free(buf); if (tmp_buf) evbuffer_free(tmp_buf); } /* Check whether evbuffer freezing works right. This is called twice, once with the argument "start" and once with the argument "end". When we test "start", we freeze the start of an evbuffer and make sure that modifying the start of the buffer doesn't work. When we test "end", we freeze the end of an evbuffer and make sure that modifying the end of the buffer doesn't work. */ static void test_evbuffer_freeze(void *ptr) { struct evbuffer *buf = NULL, *tmp_buf=NULL; const char string[] = /* Year's End, Richard Wilbur */ "I've known the wind by water banks to shake\n" "The late leaves down, which frozen where they fell\n" "And held in ice as dancers in a spell\n" "Fluttered all winter long into a lake..."; const int start = !strcmp(ptr, "start"); char *cp; char charbuf[128]; int r; size_t orig_length; struct evbuffer_iovec v[1]; if (!start) tt_str_op(ptr, ==, "end"); buf = evbuffer_new(); tmp_buf = evbuffer_new(); tt_assert(tmp_buf); evbuffer_add(buf, string, strlen(string)); evbuffer_freeze(buf, start); /* Freeze the start or the end.*/ #define FREEZE_EQ(a, startcase, endcase) \ do { \ if (start) { \ tt_int_op((a), ==, (startcase)); \ } else { \ tt_int_op((a), ==, (endcase)); \ } \ } while (0) orig_length = evbuffer_get_length(buf); /* These functions all manipulate the end of buf. */ r = evbuffer_add(buf, "abc", 0); FREEZE_EQ(r, 0, -1); r = evbuffer_reserve_space(buf, 10, v, 1); FREEZE_EQ(r, 1, -1); if (r == 0) { memset(v[0].iov_base, 'X', 10); v[0].iov_len = 10; } r = evbuffer_commit_space(buf, v, 1); FREEZE_EQ(r, 0, -1); r = evbuffer_add_reference(buf, string, 5, NULL, NULL); FREEZE_EQ(r, 0, -1); r = evbuffer_add_printf(buf, "Hello %s", "world"); FREEZE_EQ(r, 11, -1); /* TODO: test add_buffer, add_file, read */ if (!start) tt_int_op(orig_length, ==, evbuffer_get_length(buf)); orig_length = evbuffer_get_length(buf); /* These functions all manipulate the start of buf. */ r = evbuffer_remove(buf, charbuf, 1); FREEZE_EQ(r, -1, 1); r = evbuffer_drain(buf, 3); FREEZE_EQ(r, -1, 0); r = evbuffer_prepend(buf, "dummy", 5); FREEZE_EQ(r, -1, 0); cp = evbuffer_readln(buf, NULL, EVBUFFER_EOL_LF); FREEZE_EQ(cp==NULL, 1, 0); if (cp) free(cp); /* TODO: Test remove_buffer, add_buffer, write, prepend_buffer */ if (start) tt_int_op(orig_length, ==, evbuffer_get_length(buf)); end: if (buf) evbuffer_free(buf); if (tmp_buf) evbuffer_free(tmp_buf); } static void * setup_passthrough(const struct testcase_t *testcase) { return testcase->setup_data; } static int cleanup_passthrough(const struct testcase_t *testcase, void *ptr) { (void) ptr; return 1; } static const struct testcase_setup_t nil_setup = { setup_passthrough, cleanup_passthrough }; struct testcase_t evbuffer_testcases[] = { { "evbuffer", test_evbuffer, 0, NULL, NULL }, { "remove_buffer_with_empty", test_evbuffer_remove_buffer_with_empty, 0, NULL, NULL }, { "reserve2", test_evbuffer_reserve2, 0, NULL, NULL }, { "reserve_many", test_evbuffer_reserve_many, 0, NULL, NULL }, { "reserve_many2", test_evbuffer_reserve_many, 0, &nil_setup, (void*)"add" }, { "reserve_many3", test_evbuffer_reserve_many, 0, &nil_setup, (void*)"fill" }, { "expand", test_evbuffer_expand, 0, NULL, NULL }, { "add1", test_evbuffer_add1, 0, NULL, NULL }, { "add2", test_evbuffer_add2, 0, NULL, NULL }, { "reference", test_evbuffer_reference, 0, NULL, NULL }, { "reference2", test_evbuffer_reference2, 0, NULL, NULL }, { "iterative", test_evbuffer_iterative, 0, NULL, NULL }, { "readln", test_evbuffer_readln, TT_NO_LOGS, &basic_setup, NULL }, { "search_eol", test_evbuffer_search_eol, 0, NULL, NULL }, { "find", test_evbuffer_find, 0, NULL, NULL }, { "ptr_set", test_evbuffer_ptr_set, 0, NULL, NULL }, { "search", test_evbuffer_search, 0, NULL, NULL }, { "callbacks", test_evbuffer_callbacks, 0, NULL, NULL }, { "add_reference", test_evbuffer_add_reference, 0, NULL, NULL }, { "prepend", test_evbuffer_prepend, TT_FORK, NULL, NULL }, { "peek", test_evbuffer_peek, 0, NULL, NULL }, { "freeze_start", test_evbuffer_freeze, 0, &nil_setup, (void*)"start" }, { "freeze_end", test_evbuffer_freeze, 0, &nil_setup, (void*)"end" }, /* TODO: need a temp file implementation for Windows */ { "add_file_sendfile", test_evbuffer_add_file, TT_FORK, &nil_setup, (void*)"sendfile" }, { "add_file_mmap", test_evbuffer_add_file, TT_FORK, &nil_setup, (void*)"mmap" }, { "add_file_linear", test_evbuffer_add_file, TT_FORK, &nil_setup, (void*)"linear" }, END_OF_TESTCASES }; dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress_bufferevent.c000644 000765 000024 00000054573 13037731714 025537 0ustar00jstaff000000 000000 /* * Copyright (c) 2003-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* The old tests here need assertions to work. */ #undef NDEBUG #ifdef WIN32 #include #include #endif #include "event2/event-config.h" #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #ifndef WIN32 #include #include #include #include #include #include #endif #include #include #include #include #include #include #include #ifdef _EVENT_HAVE_ARPA_INET_H #include #endif #include "event2/event-config.h" #include "event2/event.h" #include "event2/event_struct.h" #include "event2/event_compat.h" #include "event2/tag.h" #include "event2/buffer.h" #include "event2/bufferevent.h" #include "event2/bufferevent_compat.h" #include "event2/bufferevent_struct.h" #include "event2/listener.h" #include "event2/util.h" #include "bufferevent-internal.h" #include "util-internal.h" #ifdef WIN32 #include "iocp-internal.h" #endif #include "regress.h" #include "regress_testutils.h" /* * simple bufferevent test */ static void readcb(struct bufferevent *bev, void *arg) { if (evbuffer_get_length(bev->input) == 8333) { struct evbuffer *evbuf = evbuffer_new(); assert(evbuf != NULL); /* gratuitous test of bufferevent_read_buffer */ bufferevent_read_buffer(bev, evbuf); bufferevent_disable(bev, EV_READ); if (evbuffer_get_length(evbuf) == 8333) { test_ok++; } evbuffer_free(evbuf); } } static void writecb(struct bufferevent *bev, void *arg) { if (evbuffer_get_length(bev->output) == 0) { test_ok++; } } static void errorcb(struct bufferevent *bev, short what, void *arg) { test_ok = -2; } static void test_bufferevent_impl(int use_pair) { struct bufferevent *bev1 = NULL, *bev2 = NULL; char buffer[8333]; int i; if (use_pair) { struct bufferevent *pair[2]; tt_assert(0 == bufferevent_pair_new(NULL, 0, pair)); bev1 = pair[0]; bev2 = pair[1]; bufferevent_setcb(bev1, readcb, writecb, errorcb, NULL); bufferevent_setcb(bev2, readcb, writecb, errorcb, NULL); tt_int_op(bufferevent_getfd(bev1), ==, -1); tt_ptr_op(bufferevent_get_underlying(bev1), ==, NULL); tt_ptr_op(bufferevent_pair_get_partner(bev1), ==, bev2); tt_ptr_op(bufferevent_pair_get_partner(bev2), ==, bev1); } else { bev1 = bufferevent_new(pair[0], readcb, writecb, errorcb, NULL); bev2 = bufferevent_new(pair[1], readcb, writecb, errorcb, NULL); tt_int_op(bufferevent_getfd(bev1), ==, pair[0]); tt_ptr_op(bufferevent_get_underlying(bev1), ==, NULL); tt_ptr_op(bufferevent_pair_get_partner(bev1), ==, NULL); tt_ptr_op(bufferevent_pair_get_partner(bev2), ==, NULL); } bufferevent_disable(bev1, EV_READ); bufferevent_enable(bev2, EV_READ); tt_int_op(bufferevent_get_enabled(bev1), ==, EV_WRITE); tt_int_op(bufferevent_get_enabled(bev2), ==, EV_WRITE|EV_READ); for (i = 0; i < (int)sizeof(buffer); i++) buffer[i] = i; bufferevent_write(bev1, buffer, sizeof(buffer)); event_dispatch(); bufferevent_free(bev1); tt_ptr_op(bufferevent_pair_get_partner(bev2), ==, NULL); bufferevent_free(bev2); if (test_ok != 2) test_ok = 0; end: ; } static void test_bufferevent(void) { test_bufferevent_impl(0); } static void test_bufferevent_pair(void) { test_bufferevent_impl(1); } /* * test watermarks and bufferevent */ static void wm_readcb(struct bufferevent *bev, void *arg) { struct evbuffer *evbuf = evbuffer_new(); int len = (int)evbuffer_get_length(bev->input); static int nread; assert(len >= 10 && len <= 20); assert(evbuf != NULL); /* gratuitous test of bufferevent_read_buffer */ bufferevent_read_buffer(bev, evbuf); nread += len; if (nread == 65000) { bufferevent_disable(bev, EV_READ); test_ok++; } evbuffer_free(evbuf); } static void wm_writecb(struct bufferevent *bev, void *arg) { assert(evbuffer_get_length(bev->output) <= 100); if (evbuffer_get_length(bev->output) == 0) { evbuffer_drain(bev->output, evbuffer_get_length(bev->output)); test_ok++; } } static void wm_errorcb(struct bufferevent *bev, short what, void *arg) { test_ok = -2; } static void test_bufferevent_watermarks_impl(int use_pair) { struct bufferevent *bev1 = NULL, *bev2 = NULL; char buffer[65000]; int i; test_ok = 0; if (use_pair) { struct bufferevent *pair[2]; tt_assert(0 == bufferevent_pair_new(NULL, 0, pair)); bev1 = pair[0]; bev2 = pair[1]; bufferevent_setcb(bev1, NULL, wm_writecb, errorcb, NULL); bufferevent_setcb(bev2, wm_readcb, NULL, errorcb, NULL); } else { bev1 = bufferevent_new(pair[0], NULL, wm_writecb, wm_errorcb, NULL); bev2 = bufferevent_new(pair[1], wm_readcb, NULL, wm_errorcb, NULL); } tt_assert(bev1); tt_assert(bev2); bufferevent_disable(bev1, EV_READ); bufferevent_enable(bev2, EV_READ); for (i = 0; i < (int)sizeof(buffer); i++) buffer[i] = (char)i; /* limit the reading on the receiving bufferevent */ bufferevent_setwatermark(bev2, EV_READ, 10, 20); /* Tell the sending bufferevent not to notify us till it's down to 100 bytes. */ bufferevent_setwatermark(bev1, EV_WRITE, 100, 2000); bufferevent_write(bev1, buffer, sizeof(buffer)); event_dispatch(); tt_int_op(test_ok, ==, 2); /* The write callback drained all the data from outbuf, so we * should have removed the write event... */ tt_assert(!event_pending(&bev2->ev_write, EV_WRITE, NULL)); end: if (bev1) bufferevent_free(bev1); if (bev2) bufferevent_free(bev2); } static void test_bufferevent_watermarks(void) { test_bufferevent_watermarks_impl(0); } static void test_bufferevent_pair_watermarks(void) { test_bufferevent_watermarks_impl(1); } /* * Test bufferevent filters */ /* strip an 'x' from each byte */ static enum bufferevent_filter_result bufferevent_input_filter(struct evbuffer *src, struct evbuffer *dst, ev_ssize_t lim, enum bufferevent_flush_mode state, void *ctx) { const unsigned char *buffer; unsigned i; buffer = evbuffer_pullup(src, evbuffer_get_length(src)); for (i = 0; i < evbuffer_get_length(src); i += 2) { assert(buffer[i] == 'x'); evbuffer_add(dst, buffer + i + 1, 1); if (i + 2 > evbuffer_get_length(src)) break; } evbuffer_drain(src, i); return (BEV_OK); } /* add an 'x' before each byte */ static enum bufferevent_filter_result bufferevent_output_filter(struct evbuffer *src, struct evbuffer *dst, ev_ssize_t lim, enum bufferevent_flush_mode state, void *ctx) { const unsigned char *buffer; unsigned i; buffer = evbuffer_pullup(src, evbuffer_get_length(src)); for (i = 0; i < evbuffer_get_length(src); ++i) { evbuffer_add(dst, "x", 1); evbuffer_add(dst, buffer + i, 1); } evbuffer_drain(src, evbuffer_get_length(src)); return (BEV_OK); } static void test_bufferevent_filters_impl(int use_pair) { struct bufferevent *bev1 = NULL, *bev2 = NULL; struct bufferevent *bev1_base = NULL, *bev2_base = NULL; char buffer[8333]; int i; test_ok = 0; if (use_pair) { struct bufferevent *pair[2]; tt_assert(0 == bufferevent_pair_new(NULL, 0, pair)); bev1 = pair[0]; bev2 = pair[1]; } else { bev1 = bufferevent_socket_new(NULL, pair[0], 0); bev2 = bufferevent_socket_new(NULL, pair[1], 0); } bev1_base = bev1; bev2_base = bev2; for (i = 0; i < (int)sizeof(buffer); i++) buffer[i] = i; bev1 = bufferevent_filter_new(bev1, NULL, bufferevent_output_filter, BEV_OPT_CLOSE_ON_FREE, NULL, NULL); bev2 = bufferevent_filter_new(bev2, bufferevent_input_filter, NULL, BEV_OPT_CLOSE_ON_FREE, NULL, NULL); bufferevent_setcb(bev1, NULL, writecb, errorcb, NULL); bufferevent_setcb(bev2, readcb, NULL, errorcb, NULL); tt_ptr_op(bufferevent_get_underlying(bev1), ==, bev1_base); tt_ptr_op(bufferevent_get_underlying(bev2), ==, bev2_base); tt_int_op(bufferevent_getfd(bev1), ==, -1); tt_int_op(bufferevent_getfd(bev2), ==, -1); bufferevent_disable(bev1, EV_READ); bufferevent_enable(bev2, EV_READ); /* insert some filters */ bufferevent_write(bev1, buffer, sizeof(buffer)); event_dispatch(); if (test_ok != 2) test_ok = 0; end: if (bev1) bufferevent_free(bev1); if (bev2) bufferevent_free(bev2); } static void test_bufferevent_filters(void) { test_bufferevent_filters_impl(0); } static void test_bufferevent_pair_filters(void) { test_bufferevent_filters_impl(1); } static void sender_writecb(struct bufferevent *bev, void *ctx) { if (evbuffer_get_length(bufferevent_get_output(bev)) == 0) { bufferevent_disable(bev,EV_READ|EV_WRITE); bufferevent_free(bev); } } static void sender_errorcb(struct bufferevent *bev, short what, void *ctx) { TT_FAIL(("Got sender error %d",(int)what)); } static int bufferevent_connect_test_flags = 0; static int n_strings_read = 0; static int n_reads_invoked = 0; #define TEST_STR "Now is the time for all good events to signal for " \ "the good of their protocol" static void listen_cb(struct evconnlistener *listener, evutil_socket_t fd, struct sockaddr *sa, int socklen, void *arg) { struct event_base *base = arg; struct bufferevent *bev; const char s[] = TEST_STR; TT_BLATHER(("Got a request on socket %d", (int)fd )); bev = bufferevent_socket_new(base, fd, bufferevent_connect_test_flags); tt_assert(bev); bufferevent_setcb(bev, NULL, sender_writecb, sender_errorcb, NULL); bufferevent_write(bev, s, sizeof(s)); end: ; } static void reader_eventcb(struct bufferevent *bev, short what, void *ctx) { struct event_base *base = ctx; if (what & BEV_EVENT_ERROR) { perror("foobar"); TT_FAIL(("got connector error %d", (int)what)); return; } if (what & BEV_EVENT_CONNECTED) { bufferevent_enable(bev, EV_READ); } if (what & BEV_EVENT_EOF) { char buf[512]; size_t n; n = bufferevent_read(bev, buf, sizeof(buf)-1); buf[n] = '\0'; tt_str_op(buf, ==, TEST_STR); if (++n_strings_read == 2) event_base_loopexit(base, NULL); } end: ; } static void reader_readcb(struct bufferevent *bev, void *ctx) { n_reads_invoked++; } static void test_bufferevent_connect(void *arg) { struct basic_test_data *data = arg; struct evconnlistener *lev=NULL; struct bufferevent *bev1=NULL, *bev2=NULL; struct sockaddr_in localhost; struct sockaddr_storage ss; struct sockaddr *sa; ev_socklen_t slen; int be_flags=BEV_OPT_CLOSE_ON_FREE; if (strstr((char*)data->setup_data, "defer")) { be_flags |= BEV_OPT_DEFER_CALLBACKS; } if (strstr((char*)data->setup_data, "unlocked")) { be_flags |= BEV_OPT_UNLOCK_CALLBACKS; } if (strstr((char*)data->setup_data, "lock")) { be_flags |= BEV_OPT_THREADSAFE; } bufferevent_connect_test_flags = be_flags; #ifdef WIN32 if (!strcmp((char*)data->setup_data, "unset_connectex")) { struct win32_extension_fns *ext = (struct win32_extension_fns *) event_get_win32_extension_fns(); ext->ConnectEx = NULL; } #endif memset(&localhost, 0, sizeof(localhost)); localhost.sin_port = 0; /* pick-a-port */ localhost.sin_addr.s_addr = htonl(0x7f000001L); localhost.sin_family = AF_INET; sa = (struct sockaddr *)&localhost; lev = evconnlistener_new_bind(data->base, listen_cb, data->base, LEV_OPT_CLOSE_ON_FREE|LEV_OPT_REUSEABLE, 16, sa, sizeof(localhost)); tt_assert(lev); sa = (struct sockaddr *)&ss; slen = sizeof(ss); if (regress_get_listener_addr(lev, sa, &slen) < 0) { tt_abort_perror("getsockname"); } tt_assert(!evconnlistener_enable(lev)); bev1 = bufferevent_socket_new(data->base, -1, be_flags); bev2 = bufferevent_socket_new(data->base, -1, be_flags); tt_assert(bev1); tt_assert(bev2); bufferevent_setcb(bev1, reader_readcb,NULL, reader_eventcb, data->base); bufferevent_setcb(bev2, reader_readcb,NULL, reader_eventcb, data->base); bufferevent_enable(bev1, EV_READ); bufferevent_enable(bev2, EV_READ); tt_want(!bufferevent_socket_connect(bev1, sa, sizeof(localhost))); tt_want(!bufferevent_socket_connect(bev2, sa, sizeof(localhost))); event_base_dispatch(data->base); tt_int_op(n_strings_read, ==, 2); tt_int_op(n_reads_invoked, >=, 2); end: if (lev) evconnlistener_free(lev); if (bev1) bufferevent_free(bev1); if (bev2) bufferevent_free(bev2); } static void want_fail_eventcb(struct bufferevent *bev, short what, void *ctx) { struct event_base *base = ctx; const char *err; evutil_socket_t s; if (what & BEV_EVENT_ERROR) { s = bufferevent_getfd(bev); err = evutil_socket_error_to_string(evutil_socket_geterror(s)); TT_BLATHER(("connection failure on "EV_SOCK_FMT": %s", EV_SOCK_ARG(s), err)); test_ok = 1; } else { TT_FAIL(("didn't fail? what %hd", what)); } event_base_loopexit(base, NULL); } static void close_socket_cb(evutil_socket_t fd, short what, void *arg) { evutil_socket_t *fdp = arg; if (*fdp >= 0) { evutil_closesocket(*fdp); *fdp = -1; } } static void test_bufferevent_connect_fail(void *arg) { struct basic_test_data *data = arg; struct bufferevent *bev=NULL; struct sockaddr_in localhost; struct sockaddr *sa = (struct sockaddr*)&localhost; evutil_socket_t fake_listener = -1; ev_socklen_t slen = sizeof(localhost); struct event close_listener_event; int close_listener_event_added = 0; struct timeval one_second = { 1, 0 }; int r; test_ok = 0; memset(&localhost, 0, sizeof(localhost)); localhost.sin_port = 0; /* have the kernel pick a port */ localhost.sin_addr.s_addr = htonl(0x7f000001L); localhost.sin_family = AF_INET; /* bind, but don't listen or accept. should trigger "Connection refused" reliably on most platforms. */ fake_listener = socket(localhost.sin_family, SOCK_STREAM, 0); tt_assert(fake_listener >= 0); tt_assert(bind(fake_listener, sa, slen) == 0); tt_assert(getsockname(fake_listener, sa, &slen) == 0); bev = bufferevent_socket_new(data->base, -1, BEV_OPT_CLOSE_ON_FREE | BEV_OPT_DEFER_CALLBACKS); tt_assert(bev); bufferevent_setcb(bev, NULL, NULL, want_fail_eventcb, data->base); r = bufferevent_socket_connect(bev, sa, slen); /* XXXX we'd like to test the '0' case everywhere, but FreeBSD tells * detects the error immediately, which is not really wrong of it. */ tt_want(r == 0 || r == -1); /* Close the listener socket after a second. This should trigger "connection refused" on some other platforms, including OSX. */ evtimer_assign(&close_listener_event, data->base, close_socket_cb, &fake_listener); event_add(&close_listener_event, &one_second); close_listener_event_added = 1; event_base_dispatch(data->base); tt_int_op(test_ok, ==, 1); end: if (fake_listener >= 0) evutil_closesocket(fake_listener); if (bev) bufferevent_free(bev); if (close_listener_event_added) event_del(&close_listener_event); } struct timeout_cb_result { struct timeval read_timeout_at; struct timeval write_timeout_at; struct timeval last_wrote_at; int n_read_timeouts; int n_write_timeouts; int total_calls; }; static void bev_timeout_write_cb(struct bufferevent *bev, void *arg) { struct timeout_cb_result *res = arg; evutil_gettimeofday(&res->last_wrote_at, NULL); } static void bev_timeout_event_cb(struct bufferevent *bev, short what, void *arg) { struct timeout_cb_result *res = arg; ++res->total_calls; if ((what & (BEV_EVENT_READING|BEV_EVENT_TIMEOUT)) == (BEV_EVENT_READING|BEV_EVENT_TIMEOUT)) { evutil_gettimeofday(&res->read_timeout_at, NULL); ++res->n_read_timeouts; } if ((what & (BEV_EVENT_WRITING|BEV_EVENT_TIMEOUT)) == (BEV_EVENT_WRITING|BEV_EVENT_TIMEOUT)) { evutil_gettimeofday(&res->write_timeout_at, NULL); ++res->n_write_timeouts; } } static void test_bufferevent_timeouts(void *arg) { /* "arg" is a string containing "pair" and/or "filter". */ struct bufferevent *bev1 = NULL, *bev2 = NULL; struct basic_test_data *data = arg; int use_pair = 0, use_filter = 0; struct timeval tv_w, tv_r, started_at; struct timeout_cb_result res1, res2; char buf[1024]; memset(&res1, 0, sizeof(res1)); memset(&res2, 0, sizeof(res2)); if (strstr((char*)data->setup_data, "pair")) use_pair = 1; if (strstr((char*)data->setup_data, "filter")) use_filter = 1; if (use_pair) { struct bufferevent *p[2]; tt_int_op(0, ==, bufferevent_pair_new(data->base, 0, p)); bev1 = p[0]; bev2 = p[1]; } else { bev1 = bufferevent_socket_new(data->base, data->pair[0], 0); bev2 = bufferevent_socket_new(data->base, data->pair[1], 0); } tt_assert(bev1); tt_assert(bev2); if (use_filter) { struct bufferevent *bevf1, *bevf2; bevf1 = bufferevent_filter_new(bev1, NULL, NULL, BEV_OPT_CLOSE_ON_FREE, NULL, NULL); bevf2 = bufferevent_filter_new(bev2, NULL, NULL, BEV_OPT_CLOSE_ON_FREE, NULL, NULL); tt_assert(bevf1); tt_assert(bevf2); bev1 = bevf1; bev2 = bevf2; } /* Do this nice and early. */ bufferevent_disable(bev2, EV_READ); /* bev1 will try to write and read. Both will time out. */ evutil_gettimeofday(&started_at, NULL); tv_w.tv_sec = tv_r.tv_sec = 0; tv_w.tv_usec = 100*1000; tv_r.tv_usec = 150*1000; bufferevent_setcb(bev1, NULL, bev_timeout_write_cb, bev_timeout_event_cb, &res1); bufferevent_setwatermark(bev1, EV_WRITE, 1024*1024+10, 0); bufferevent_set_timeouts(bev1, &tv_r, &tv_w); if (use_pair) { /* For a pair, the fact that the other side isn't reading * makes the writer stall */ bufferevent_write(bev1, "ABCDEFG", 7); } else { /* For a real socket, the kernel's TCP buffers can eat a * fair number of bytes; make sure that at some point we * have some bytes that will stall. */ struct evbuffer *output = bufferevent_get_output(bev1); int i; memset(buf, 0xbb, sizeof(buf)); for (i=0;i<1024;++i) { evbuffer_add_reference(output, buf, sizeof(buf), NULL, NULL); } } bufferevent_enable(bev1, EV_READ|EV_WRITE); /* bev2 has nothing to say, and isn't listening. */ bufferevent_setcb(bev2, NULL, bev_timeout_write_cb, bev_timeout_event_cb, &res2); tv_w.tv_sec = tv_r.tv_sec = 0; tv_w.tv_usec = 200*1000; tv_r.tv_usec = 100*1000; bufferevent_set_timeouts(bev2, &tv_r, &tv_w); bufferevent_enable(bev2, EV_WRITE); tv_r.tv_sec = 1; tv_r.tv_usec = 0; event_base_loopexit(data->base, &tv_r); event_base_dispatch(data->base); /* XXXX Test that actually reading or writing a little resets the * timeouts. */ /* Each buf1 timeout happens, and happens only once. */ tt_want(res1.n_read_timeouts); tt_want(res1.n_write_timeouts); tt_want(res1.n_read_timeouts == 1); tt_want(res1.n_write_timeouts == 1); test_timeval_diff_eq(&started_at, &res1.read_timeout_at, 150); test_timeval_diff_eq(&started_at, &res1.write_timeout_at, 100); end: if (bev1) bufferevent_free(bev1); if (bev2) bufferevent_free(bev2); } struct testcase_t bufferevent_testcases[] = { LEGACY(bufferevent, TT_ISOLATED), LEGACY(bufferevent_pair, TT_ISOLATED), LEGACY(bufferevent_watermarks, TT_ISOLATED), LEGACY(bufferevent_pair_watermarks, TT_ISOLATED), LEGACY(bufferevent_filters, TT_ISOLATED), LEGACY(bufferevent_pair_filters, TT_ISOLATED), { "bufferevent_connect", test_bufferevent_connect, TT_FORK|TT_NEED_BASE, &basic_setup, (void*)"" }, { "bufferevent_connect_defer", test_bufferevent_connect, TT_FORK|TT_NEED_BASE, &basic_setup, (void*)"defer" }, { "bufferevent_connect_lock", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_NEED_THREADS, &basic_setup, (void*)"lock" }, { "bufferevent_connect_lock_defer", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_NEED_THREADS, &basic_setup, (void*)"defer lock" }, { "bufferevent_connect_unlocked_cbs", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_NEED_THREADS, &basic_setup, (void*)"lock defer unlocked" }, { "bufferevent_connect_fail", test_bufferevent_connect_fail, TT_FORK|TT_NEED_BASE, &basic_setup, NULL }, { "bufferevent_timeout", test_bufferevent_timeouts, TT_FORK|TT_NEED_BASE|TT_NEED_SOCKETPAIR, &basic_setup, (void*)"" }, { "bufferevent_timeout_pair", test_bufferevent_timeouts, TT_FORK|TT_NEED_BASE, &basic_setup, (void*)"pair" }, { "bufferevent_timeout_filter", test_bufferevent_timeouts, TT_FORK|TT_NEED_BASE, &basic_setup, (void*)"filter" }, { "bufferevent_timeout_filter_pair", test_bufferevent_timeouts, TT_FORK|TT_NEED_BASE, &basic_setup, (void*)"filter pair" }, #ifdef _EVENT_HAVE_LIBZ LEGACY(bufferevent_zlib, TT_ISOLATED), #else { "bufferevent_zlib", NULL, TT_SKIP, NULL, NULL }, #endif END_OF_TESTCASES, }; struct testcase_t bufferevent_iocp_testcases[] = { LEGACY(bufferevent, TT_ISOLATED|TT_ENABLE_IOCP), LEGACY(bufferevent_watermarks, TT_ISOLATED|TT_ENABLE_IOCP), LEGACY(bufferevent_filters, TT_ISOLATED|TT_ENABLE_IOCP), { "bufferevent_connect", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_ENABLE_IOCP, &basic_setup, (void*)"" }, { "bufferevent_connect_defer", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_ENABLE_IOCP, &basic_setup, (void*)"defer" }, { "bufferevent_connect_lock", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_NEED_THREADS|TT_ENABLE_IOCP, &basic_setup, (void*)"lock" }, { "bufferevent_connect_lock_defer", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_NEED_THREADS|TT_ENABLE_IOCP, &basic_setup, (void*)"defer lock" }, { "bufferevent_connect_fail", test_bufferevent_connect_fail, TT_FORK|TT_NEED_BASE|TT_ENABLE_IOCP, &basic_setup, NULL }, { "bufferevent_connect_nonblocking", test_bufferevent_connect, TT_FORK|TT_NEED_BASE|TT_ENABLE_IOCP, &basic_setup, (void*)"unset_connectex" }, END_OF_TESTCASES, }; dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress_et.c000644 000765 000024 00000013617 13037731714 023626 0ustar00jstaff000000 000000 /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "../util-internal.h" #include "event2/event-config.h" #ifdef WIN32 #include #endif #include #include #ifdef _EVENT_HAVE_SYS_SOCKET_H #include #endif #include #include #include #include #ifndef WIN32 #include #include #endif #include #include "event2/event.h" #include "event2/util.h" #include "regress.h" static int was_et = 0; static void read_cb(evutil_socket_t fd, short event, void *arg) { char buf; int len; len = recv(fd, &buf, sizeof(buf), 0); called++; if (event & EV_ET) was_et = 1; if (!len) event_del(arg); } #ifndef SHUT_WR #define SHUT_WR 1 #endif #ifdef WIN32 #define LOCAL_SOCKETPAIR_AF AF_INET #else #define LOCAL_SOCKETPAIR_AF AF_UNIX #endif static void test_edgetriggered(void *et) { struct event *ev = NULL; struct event_base *base = NULL; const char *test = "test string"; evutil_socket_t pair[2] = {-1,-1}; int supports_et; /* On Linux 3.2.1 (at least, as patched by Fedora and tested by Nick), * doing a "recv" on an AF_UNIX socket resets the readability of the * socket, even though there is no state change, so we don't actually * get edge-triggered behavior. Yuck! Linux 3.1.9 didn't have this * problem. */ #ifdef __linux__ if (evutil_ersatz_socketpair(AF_INET, SOCK_STREAM, 0, pair) == -1) { tt_abort_perror("socketpair"); } #else if (evutil_socketpair(LOCAL_SOCKETPAIR_AF, SOCK_STREAM, 0, pair) == -1) { tt_abort_perror("socketpair"); } #endif called = was_et = 0; tt_int_op(send(pair[0], test, (int)strlen(test)+1, 0), >, 0); shutdown(pair[0], SHUT_WR); /* Initalize the event library */ base = event_base_new(); if (!strcmp(event_base_get_method(base), "epoll") || !strcmp(event_base_get_method(base), "epoll (with changelist)") || !strcmp(event_base_get_method(base), "kqueue")) supports_et = 1; else supports_et = 0; TT_BLATHER(("Checking for edge-triggered events with %s, which should %s" "support edge-triggering", event_base_get_method(base), supports_et?"":"not ")); /* Initalize one event */ ev = event_new(base, pair[1], EV_READ|EV_ET|EV_PERSIST, read_cb, &ev); event_add(ev, NULL); /* We're going to call the dispatch function twice. The first invocation * will read a single byte from pair[1] in either case. If we're edge * triggered, we'll only see the event once (since we only see transitions * from no data to data), so the second invocation of event_base_loop will * do nothing. If we're level triggered, the second invocation of * event_base_loop will also activate the event (because there's still * data to read). */ event_base_loop(base,EVLOOP_NONBLOCK|EVLOOP_ONCE); event_base_loop(base,EVLOOP_NONBLOCK|EVLOOP_ONCE); if (supports_et) { tt_int_op(called, ==, 1); tt_assert(was_et); } else { tt_int_op(called, ==, 2); tt_assert(!was_et); } end: if (ev) { event_del(ev); event_free(ev); } if (base) event_base_free(base); evutil_closesocket(pair[0]); evutil_closesocket(pair[1]); } static void test_edgetriggered_mix_error(void *data_) { struct basic_test_data *data = data_; struct event_base *base = NULL; struct event *ev_et=NULL, *ev_lt=NULL; #ifdef _EVENT_DISABLE_DEBUG_MODE if (1) tt_skip(); #endif event_enable_debug_mode(); base = event_base_new(); /* try mixing edge-triggered and level-triggered to make sure it fails*/ ev_et = event_new(base, data->pair[0], EV_READ|EV_ET, read_cb, ev_et); tt_assert(ev_et); ev_lt = event_new(base, data->pair[0], EV_READ, read_cb, ev_lt); tt_assert(ev_lt); /* Add edge-triggered, then level-triggered. Get an error. */ tt_int_op(0, ==, event_add(ev_et, NULL)); tt_int_op(-1, ==, event_add(ev_lt, NULL)); tt_int_op(EV_READ, ==, event_pending(ev_et, EV_READ, NULL)); tt_int_op(0, ==, event_pending(ev_lt, EV_READ, NULL)); tt_int_op(0, ==, event_del(ev_et)); /* Add level-triggered, then edge-triggered. Get an error. */ tt_int_op(0, ==, event_add(ev_lt, NULL)); tt_int_op(-1, ==, event_add(ev_et, NULL)); tt_int_op(EV_READ, ==, event_pending(ev_lt, EV_READ, NULL)); tt_int_op(0, ==, event_pending(ev_et, EV_READ, NULL)); end: if (ev_et) event_free(ev_et); if (ev_lt) event_free(ev_lt); if (base) event_base_free(base); } struct testcase_t edgetriggered_testcases[] = { { "et", test_edgetriggered, TT_FORK, NULL, NULL }, { "et_mix_error", test_edgetriggered_mix_error, TT_FORK|TT_NEED_SOCKETPAIR|TT_NO_LOGS, &basic_setup, NULL }, END_OF_TESTCASES }; dnscrypt-proxy-1.9.4/src/libevent-modified/test/regress_http.c000644 000765 000024 00000277540 13037731714 024204 0ustar00jstaff000000 000000 /* * Copyright (c) 2003-2007 Niels Provos * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef WIN32 #include #include #include #endif #include "event2/event-config.h" #include #include #ifdef _EVENT_HAVE_SYS_TIME_H #include #endif #include #ifndef WIN32 #include #include #include #include #endif #include #include #include #include #include #include "event2/dns.h" #include "event2/event.h" #include "event2/http.h" #include "event2/buffer.h" #include "event2/bufferevent.h" #include "event2/util.h" #include "log-internal.h" #include "util-internal.h" #include "http-internal.h" #include "regress.h" #include "regress_testutils.h" static struct evhttp *http; /* set if a test needs to call loopexit on a base */ static struct event_base *exit_base; static char const BASIC_REQUEST_BODY[] = "This is funny"; static void http_basic_cb(struct evhttp_request *req, void *arg); static void http_chunked_cb(struct evhttp_request *req, void *arg); static void http_post_cb(struct evhttp_request *req, void *arg); static void http_put_cb(struct evhttp_request *req, void *arg); static void http_delete_cb(struct evhttp_request *req, void *arg); static void http_delay_cb(struct evhttp_request *req, void *arg); static void http_large_delay_cb(struct evhttp_request *req, void *arg); static void http_badreq_cb(struct evhttp_request *req, void *arg); static void http_dispatcher_cb(struct evhttp_request *req, void *arg); static int http_bind(struct evhttp *myhttp, ev_uint16_t *pport, int ipv6) { int port; struct evhttp_bound_socket *sock; if (ipv6) sock = evhttp_bind_socket_with_handle(myhttp, "::1", *pport); else sock = evhttp_bind_socket_with_handle(myhttp, "127.0.0.1", *pport); if (sock == NULL) event_errx(1, "Could not start web server"); port = regress_get_socket_port(evhttp_bound_socket_get_fd(sock)); if (port < 0) return -1; *pport = (ev_uint16_t) port; return 0; } static struct evhttp * http_setup(ev_uint16_t *pport, struct event_base *base, int ipv6) { struct evhttp *myhttp; /* Try a few different ports */ myhttp = evhttp_new(base); if (http_bind(myhttp, pport, ipv6) < 0) return NULL; /* Register a callback for certain types of requests */ evhttp_set_cb(myhttp, "/test", http_basic_cb, base); evhttp_set_cb(myhttp, "/chunked", http_chunked_cb, base); evhttp_set_cb(myhttp, "/streamed", http_chunked_cb, base); evhttp_set_cb(myhttp, "/postit", http_post_cb, base); evhttp_set_cb(myhttp, "/putit", http_put_cb, base); evhttp_set_cb(myhttp, "/deleteit", http_delete_cb, base); evhttp_set_cb(myhttp, "/delay", http_delay_cb, base); evhttp_set_cb(myhttp, "/largedelay", http_large_delay_cb, base); evhttp_set_cb(myhttp, "/badrequest", http_badreq_cb, base); evhttp_set_cb(myhttp, "/", http_dispatcher_cb, base); return (myhttp); } #ifndef NI_MAXSERV #define NI_MAXSERV 1024 #endif static evutil_socket_t http_connect(const char *address, u_short port) { /* Stupid code for connecting */ struct evutil_addrinfo ai, *aitop; char strport[NI_MAXSERV]; struct sockaddr *sa; int slen; evutil_socket_t fd; memset(&ai, 0, sizeof(ai)); ai.ai_family = AF_INET; ai.ai_socktype = SOCK_STREAM; evutil_snprintf(strport, sizeof(strport), "%d", port); if (evutil_getaddrinfo(address, strport, &ai, &aitop) != 0) { event_warn("getaddrinfo"); return (-1); } sa = aitop->ai_addr; slen = aitop->ai_addrlen; fd = socket(AF_INET, SOCK_STREAM, 0); if (fd == -1) event_err(1, "socket failed"); evutil_make_socket_nonblocking(fd); if (connect(fd, sa, slen) == -1) { #ifdef WIN32 int tmp_err = WSAGetLastError(); if (tmp_err != WSAEINPROGRESS && tmp_err != WSAEINVAL && tmp_err != WSAEWOULDBLOCK) event_err(1, "connect failed"); #else if (errno != EINPROGRESS) event_err(1, "connect failed"); #endif } evutil_freeaddrinfo(aitop); return (fd); } /* Helper: do a strcmp on the contents of buf and the string s. */ static int evbuffer_datacmp(struct evbuffer *buf, const char *s) { size_t b_sz = evbuffer_get_length(buf); size_t s_sz = strlen(s); unsigned char *d; int r; if (b_sz < s_sz) return -1; d = evbuffer_pullup(buf, s_sz); if ((r = memcmp(d, s, s_sz))) return r; if (b_sz > s_sz) return 1; else return 0; } /* Helper: Return true iff buf contains s */ static int evbuffer_contains(struct evbuffer *buf, const char *s) { struct evbuffer_ptr ptr; ptr = evbuffer_search(buf, s, strlen(s), NULL); return ptr.pos != -1; } static void http_readcb(struct bufferevent *bev, void *arg) { const char *what = BASIC_REQUEST_BODY; struct event_base *my_base = arg; if (evbuffer_contains(bufferevent_get_input(bev), what)) { struct evhttp_request *req = evhttp_request_new(NULL, NULL); enum message_read_status done; /* req->kind = EVHTTP_RESPONSE; */ done = evhttp_parse_firstline(req, bufferevent_get_input(bev)); if (done != ALL_DATA_READ) goto out; done = evhttp_parse_headers(req, bufferevent_get_input(bev)); if (done != ALL_DATA_READ) goto out; if (done == 1 && evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Type") != NULL) test_ok++; out: evhttp_request_free(req); bufferevent_disable(bev, EV_READ); if (exit_base) event_base_loopexit(exit_base, NULL); else if (my_base) event_base_loopexit(my_base, NULL); else { fprintf(stderr, "No way to exit loop!\n"); exit(1); } } } static void http_writecb(struct bufferevent *bev, void *arg) { if (evbuffer_get_length(bufferevent_get_output(bev)) == 0) { /* enable reading of the reply */ bufferevent_enable(bev, EV_READ); test_ok++; } } static void http_errorcb(struct bufferevent *bev, short what, void *arg) { test_ok = -2; event_base_loopexit(arg, NULL); } static void http_basic_cb(struct evhttp_request *req, void *arg) { struct evbuffer *evb = evbuffer_new(); int empty = evhttp_find_header(evhttp_request_get_input_headers(req), "Empty") != NULL; event_debug(("%s: called\n", __func__)); evbuffer_add_printf(evb, BASIC_REQUEST_BODY); /* For multi-line headers test */ { const char *multi = evhttp_find_header(evhttp_request_get_input_headers(req),"X-multi"); if (multi) { if (strcmp("END", multi + strlen(multi) - 3) == 0) test_ok++; if (evhttp_find_header(evhttp_request_get_input_headers(req), "X-Last")) test_ok++; } } /* injecting a bad content-length */ if (evhttp_find_header(evhttp_request_get_input_headers(req), "X-Negative")) evhttp_add_header(evhttp_request_get_output_headers(req), "Content-Length", "-100"); /* allow sending of an empty reply */ evhttp_send_reply(req, HTTP_OK, "Everything is fine", !empty ? evb : NULL); evbuffer_free(evb); } static char const* const CHUNKS[] = { "This is funny", "but not hilarious.", "bwv 1052" }; struct chunk_req_state { struct event_base *base; struct evhttp_request *req; int i; }; static void http_chunked_trickle_cb(evutil_socket_t fd, short events, void *arg) { struct evbuffer *evb = evbuffer_new(); struct chunk_req_state *state = arg; struct timeval when = { 0, 0 }; evbuffer_add_printf(evb, "%s", CHUNKS[state->i]); evhttp_send_reply_chunk(state->req, evb); evbuffer_free(evb); if (++state->i < (int) (sizeof(CHUNKS)/sizeof(CHUNKS[0]))) { event_base_once(state->base, -1, EV_TIMEOUT, http_chunked_trickle_cb, state, &when); } else { evhttp_send_reply_end(state->req); free(state); } } static void http_chunked_cb(struct evhttp_request *req, void *arg) { struct timeval when = { 0, 0 }; struct chunk_req_state *state = malloc(sizeof(struct chunk_req_state)); event_debug(("%s: called\n", __func__)); memset(state, 0, sizeof(struct chunk_req_state)); state->req = req; state->base = arg; if (strcmp(evhttp_request_get_uri(req), "/streamed") == 0) { evhttp_add_header(evhttp_request_get_output_headers(req), "Content-Length", "39"); } /* generate a chunked/streamed reply */ evhttp_send_reply_start(req, HTTP_OK, "Everything is fine"); /* but trickle it across several iterations to ensure we're not * assuming it comes all at once */ event_base_once(arg, -1, EV_TIMEOUT, http_chunked_trickle_cb, state, &when); } static void http_complete_write(evutil_socket_t fd, short what, void *arg) { struct bufferevent *bev = arg; const char *http_request = "host\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); } static void http_basic_test(void *arg) { struct basic_test_data *data = arg; struct timeval tv; struct bufferevent *bev; evutil_socket_t fd; const char *http_request; ev_uint16_t port = 0, port2 = 0; test_ok = 0; http = http_setup(&port, data->base, 0); /* bind to a second socket */ if (http_bind(http, &port2, 0) == -1) { fprintf(stdout, "FAILED (bind)\n"); exit(1); } fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_readcb, http_writecb, http_errorcb, data->base); /* first half of the http request */ http_request = "GET /test HTTP/1.1\r\n" "Host: some"; bufferevent_write(bev, http_request, strlen(http_request)); evutil_timerclear(&tv); tv.tv_usec = 10000; event_base_once(data->base, -1, EV_TIMEOUT, http_complete_write, bev, &tv); event_base_dispatch(data->base); tt_assert(test_ok == 3); /* connect to the second port */ bufferevent_free(bev); evutil_closesocket(fd); fd = http_connect("127.0.0.1", port2); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_readcb, http_writecb, http_errorcb, data->base); http_request = "GET /test HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); event_base_dispatch(data->base); tt_assert(test_ok == 5); /* Connect to the second port again. This time, send an absolute uri. */ bufferevent_free(bev); evutil_closesocket(fd); fd = http_connect("127.0.0.1", port2); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_readcb, http_writecb, http_errorcb, data->base); http_request = "GET http://somehost.net/test HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); event_base_dispatch(data->base); tt_assert(test_ok == 7); evhttp_free(http); end: ; } static void http_delay_reply(evutil_socket_t fd, short what, void *arg) { struct evhttp_request *req = arg; evhttp_send_reply(req, HTTP_OK, "Everything is fine", NULL); ++test_ok; } static void http_delay_cb(struct evhttp_request *req, void *arg) { struct timeval tv; evutil_timerclear(&tv); tv.tv_sec = 0; tv.tv_usec = 200 * 1000; event_base_once(arg, -1, EV_TIMEOUT, http_delay_reply, req, &tv); } static void http_badreq_cb(struct evhttp_request *req, void *arg) { struct evbuffer *buf = evbuffer_new(); evhttp_add_header(evhttp_request_get_output_headers(req), "Content-Type", "text/xml; charset=UTF-8"); evbuffer_add_printf(buf, "Hello, %s!", "127.0.0.1"); evhttp_send_reply(req, HTTP_OK, "OK", buf); evbuffer_free(buf); } static void http_badreq_errorcb(struct bufferevent *bev, short what, void *arg) { event_debug(("%s: called (what=%04x, arg=%p)", __func__, what, arg)); /* ignore */ } #ifndef SHUT_WR #ifdef WIN32 #define SHUT_WR SD_SEND #else #define SHUT_WR 1 #endif #endif static void http_badreq_readcb(struct bufferevent *bev, void *arg) { const char *what = "Hello, 127.0.0.1"; const char *bad_request = "400 Bad Request"; if (evbuffer_contains(bufferevent_get_input(bev), bad_request)) { TT_FAIL(("%s:bad request detected", __func__)); bufferevent_disable(bev, EV_READ); event_base_loopexit(arg, NULL); return; } if (evbuffer_contains(bufferevent_get_input(bev), what)) { struct evhttp_request *req = evhttp_request_new(NULL, NULL); enum message_read_status done; /* req->kind = EVHTTP_RESPONSE; */ done = evhttp_parse_firstline(req, bufferevent_get_input(bev)); if (done != ALL_DATA_READ) goto out; done = evhttp_parse_headers(req, bufferevent_get_input(bev)); if (done != ALL_DATA_READ) goto out; if (done == 1 && evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Type") != NULL) test_ok++; out: evhttp_request_free(req); evbuffer_drain(bufferevent_get_input(bev), evbuffer_get_length(bufferevent_get_input(bev))); } shutdown(bufferevent_getfd(bev), SHUT_WR); } static void http_badreq_successcb(evutil_socket_t fd, short what, void *arg) { event_debug(("%s: called (what=%04x, arg=%p)", __func__, what, arg)); event_base_loopexit(exit_base, NULL); } static void http_bad_request_test(void *arg) { struct basic_test_data *data = arg; struct timeval tv; struct bufferevent *bev = NULL; evutil_socket_t fd; const char *http_request; ev_uint16_t port=0, port2=0; test_ok = 0; exit_base = data->base; http = http_setup(&port, data->base, 0); /* bind to a second socket */ if (http_bind(http, &port2, 0) == -1) TT_DIE(("Bind socket failed")); /* NULL request test */ fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_badreq_readcb, http_writecb, http_badreq_errorcb, data->base); bufferevent_enable(bev, EV_READ); /* real NULL request */ http_request = ""; bufferevent_write(bev, http_request, strlen(http_request)); shutdown(fd, SHUT_WR); timerclear(&tv); tv.tv_usec = 10000; event_base_once(data->base, -1, EV_TIMEOUT, http_badreq_successcb, bev, &tv); event_base_dispatch(data->base); bufferevent_free(bev); evutil_closesocket(fd); if (test_ok != 0) { fprintf(stdout, "FAILED\n"); exit(1); } /* Second answer (BAD REQUEST) on connection close */ /* connect to the second port */ fd = http_connect("127.0.0.1", port2); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_badreq_readcb, http_writecb, http_badreq_errorcb, data->base); bufferevent_enable(bev, EV_READ); /* first half of the http request */ http_request = "GET /badrequest HTTP/1.0\r\n" \ "Connection: Keep-Alive\r\n" \ "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); timerclear(&tv); tv.tv_usec = 10000; event_base_once(data->base, -1, EV_TIMEOUT, http_badreq_successcb, bev, &tv); event_base_dispatch(data->base); tt_int_op(test_ok, ==, 2); end: evhttp_free(http); if (bev) bufferevent_free(bev); } static struct evhttp_connection *delayed_client; static void http_large_delay_cb(struct evhttp_request *req, void *arg) { struct timeval tv; evutil_timerclear(&tv); tv.tv_sec = 3; event_base_once(arg, -1, EV_TIMEOUT, http_delay_reply, req, &tv); evhttp_connection_fail(delayed_client, EVCON_HTTP_EOF); } /* * HTTP DELETE test, just piggyback on the basic test */ static void http_delete_cb(struct evhttp_request *req, void *arg) { struct evbuffer *evb = evbuffer_new(); int empty = evhttp_find_header(evhttp_request_get_input_headers(req), "Empty") != NULL; /* Expecting a DELETE request */ if (evhttp_request_get_command(req) != EVHTTP_REQ_DELETE) { fprintf(stdout, "FAILED (delete type)\n"); exit(1); } event_debug(("%s: called\n", __func__)); evbuffer_add_printf(evb, BASIC_REQUEST_BODY); /* allow sending of an empty reply */ evhttp_send_reply(req, HTTP_OK, "Everything is fine", !empty ? evb : NULL); evbuffer_free(evb); } static void http_delete_test(void *arg) { struct basic_test_data *data = arg; struct bufferevent *bev; evutil_socket_t fd; const char *http_request; ev_uint16_t port = 0; test_ok = 0; http = http_setup(&port, data->base, 0); fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_readcb, http_writecb, http_errorcb, data->base); http_request = "DELETE /deleteit HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); event_base_dispatch(data->base); bufferevent_free(bev); evutil_closesocket(fd); evhttp_free(http); tt_int_op(test_ok, ==, 2); end: ; } static void http_allowed_methods_eventcb(struct bufferevent *bev, short what, void *arg) { char **output = arg; if ((what & (BEV_EVENT_ERROR|BEV_EVENT_EOF))) { char buf[4096]; int n; n = evbuffer_remove(bufferevent_get_input(bev), buf, sizeof(buf)-1); if (n >= 0) { buf[n]='\0'; if (*output) free(*output); *output = strdup(buf); } event_base_loopexit(exit_base, NULL); } } static void http_allowed_methods_test(void *arg) { struct basic_test_data *data = arg; struct bufferevent *bev1, *bev2, *bev3; evutil_socket_t fd1, fd2, fd3; const char *http_request; char *result1=NULL, *result2=NULL, *result3=NULL; ev_uint16_t port = 0; exit_base = data->base; test_ok = 0; http = http_setup(&port, data->base, 0); fd1 = http_connect("127.0.0.1", port); /* GET is out; PATCH is in. */ evhttp_set_allowed_methods(http, EVHTTP_REQ_PATCH); /* Stupid thing to send a request */ bev1 = bufferevent_socket_new(data->base, fd1, 0); bufferevent_enable(bev1, EV_READ|EV_WRITE); bufferevent_setcb(bev1, NULL, NULL, http_allowed_methods_eventcb, &result1); http_request = "GET /index.html HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev1, http_request, strlen(http_request)); event_base_dispatch(data->base); fd2 = http_connect("127.0.0.1", port); bev2 = bufferevent_socket_new(data->base, fd2, 0); bufferevent_enable(bev2, EV_READ|EV_WRITE); bufferevent_setcb(bev2, NULL, NULL, http_allowed_methods_eventcb, &result2); http_request = "PATCH /test HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev2, http_request, strlen(http_request)); event_base_dispatch(data->base); fd3 = http_connect("127.0.0.1", port); bev3 = bufferevent_socket_new(data->base, fd3, 0); bufferevent_enable(bev3, EV_READ|EV_WRITE); bufferevent_setcb(bev3, NULL, NULL, http_allowed_methods_eventcb, &result3); http_request = "FLOOP /test HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev3, http_request, strlen(http_request)); event_base_dispatch(data->base); bufferevent_free(bev1); bufferevent_free(bev2); bufferevent_free(bev3); evutil_closesocket(fd1); evutil_closesocket(fd2); evutil_closesocket(fd3); evhttp_free(http); /* Method known but disallowed */ tt_assert(result1); tt_assert(!strncmp(result1, "HTTP/1.1 501 ", strlen("HTTP/1.1 501 "))); /* Method known and allowed */ tt_assert(result2); tt_assert(!strncmp(result2, "HTTP/1.1 200 ", strlen("HTTP/1.1 200 "))); /* Method unknown */ tt_assert(result3); tt_assert(!strncmp(result3, "HTTP/1.1 501 ", strlen("HTTP/1.1 501 "))); end: if (result1) free(result1); if (result2) free(result2); if (result3) free(result3); } static void http_request_done(struct evhttp_request *, void *); static void http_request_empty_done(struct evhttp_request *, void *); static void _http_connection_test(struct basic_test_data *data, int persistent, const char *address, struct evdns_base *dnsbase, int ipv6) { ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; test_ok = 0; http = http_setup(&port, data->base, ipv6); evcon = evhttp_connection_base_new(data->base, dnsbase, address, port); tt_assert(evcon); tt_assert(evhttp_connection_get_base(evcon) == data->base); exit_base = data->base; /* * At this point, we want to schedule a request to the HTTP * server using our make request method. */ req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test") == -1) { fprintf(stdout, "FAILED\n"); exit(1); } event_base_dispatch(data->base); tt_assert(test_ok); /* try to make another request over the same connection */ test_ok = 0; req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* * if our connections are not supposed to be persistent; request * a close from the server. */ if (!persistent) evhttp_add_header(evhttp_request_get_output_headers(req), "Connection", "close"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test") == -1) { tt_abort_msg("couldn't make request"); } event_base_dispatch(data->base); /* make another request: request empty reply */ test_ok = 0; req = evhttp_request_new(http_request_empty_done, data->base); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Empty", "itis"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } static void http_connection_test(void *arg) { _http_connection_test(arg, 0, "127.0.0.1", NULL, 0); } static void http_persist_connection_test(void *arg) { _http_connection_test(arg, 1, "127.0.0.1", NULL, 0); } static struct regress_dns_server_table search_table[] = { { "localhost", "A", "127.0.0.1", 0 }, { NULL, NULL, NULL, 0 } }; static void http_connection_async_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; struct evdns_base *dns_base = NULL; ev_uint16_t portnum = 0; char address[64]; exit_base = data->base; tt_assert(regress_dnsserver(data->base, &portnum, search_table)); dns_base = evdns_base_new(data->base, 0/* init name servers */); tt_assert(dns_base); /* Add ourself as the only nameserver, and make sure we really are * the only nameserver. */ evutil_snprintf(address, sizeof(address), "127.0.0.1:%d", portnum); evdns_base_nameserver_ip_add(dns_base, address); test_ok = 0; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, dns_base, "127.0.0.1", port); tt_assert(evcon); /* * At this point, we want to schedule a request to the HTTP * server using our make request method. */ req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test") == -1) { fprintf(stdout, "FAILED\n"); exit(1); } event_base_dispatch(data->base); tt_assert(test_ok); /* try to make another request over the same connection */ test_ok = 0; req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* * if our connections are not supposed to be persistent; request * a close from the server. */ evhttp_add_header(evhttp_request_get_output_headers(req), "Connection", "close"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test") == -1) { tt_abort_msg("couldn't make request"); } event_base_dispatch(data->base); /* make another request: request empty reply */ test_ok = 0; req = evhttp_request_new(http_request_empty_done, data->base); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Empty", "itis"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); if (dns_base) evdns_base_free(dns_base, 0); regress_clean_dnsserver(); } static void http_request_never_call(struct evhttp_request *req, void *arg) { fprintf(stdout, "FAILED\n"); exit(1); } static void http_do_cancel(evutil_socket_t fd, short what, void *arg) { struct evhttp_request *req = arg; struct timeval tv; struct event_base *base; evutil_timerclear(&tv); tv.tv_sec = 0; tv.tv_usec = 500 * 1000; base = evhttp_connection_get_base(evhttp_request_get_connection(req)); evhttp_cancel_request(req); event_base_loopexit(base, &tv); ++test_ok; } static void http_cancel_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; struct timeval tv; exit_base = data->base; test_ok = 0; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); /* * At this point, we want to schedule a request to the HTTP * server using our make request method. */ req = evhttp_request_new(http_request_never_call, NULL); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ tt_int_op(evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/delay"), !=, -1); evutil_timerclear(&tv); tv.tv_sec = 0; tv.tv_usec = 100 * 1000; event_base_once(data->base, -1, EV_TIMEOUT, http_do_cancel, req, &tv); event_base_dispatch(data->base); tt_int_op(test_ok, ==, 2); /* try to make another request over the same connection */ test_ok = 0; req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ tt_int_op(evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test"), !=, -1); event_base_dispatch(data->base); /* make another request: request empty reply */ test_ok = 0; req = evhttp_request_new(http_request_empty_done, data->base); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Empty", "itis"); /* We give ownership of the request to the connection */ tt_int_op(evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test"), !=, -1); event_base_dispatch(data->base); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } static void http_request_done(struct evhttp_request *req, void *arg) { const char *what = arg; if (evhttp_request_get_response_code(req) != HTTP_OK) { fprintf(stderr, "FAILED\n"); exit(1); } if (evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Type") == NULL) { fprintf(stderr, "FAILED\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != strlen(what)) { fprintf(stderr, "FAILED\n"); exit(1); } if (evbuffer_datacmp(evhttp_request_get_input_buffer(req), what) != 0) { fprintf(stderr, "FAILED\n"); exit(1); } test_ok = 1; EVUTIL_ASSERT(exit_base); event_base_loopexit(exit_base, NULL); } static void http_request_expect_error(struct evhttp_request *req, void *arg) { if (evhttp_request_get_response_code(req) == HTTP_OK) { fprintf(stderr, "FAILED\n"); exit(1); } test_ok = 1; EVUTIL_ASSERT(arg); event_base_loopexit(arg, NULL); } /* test virtual hosts */ static void http_virtual_host_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; struct evhttp *second = NULL, *third = NULL; evutil_socket_t fd; struct bufferevent *bev; const char *http_request; exit_base = data->base; http = http_setup(&port, data->base, 0); /* virtual host */ second = evhttp_new(NULL); evhttp_set_cb(second, "/funnybunny", http_basic_cb, NULL); third = evhttp_new(NULL); evhttp_set_cb(third, "/blackcoffee", http_basic_cb, NULL); if (evhttp_add_virtual_host(http, "foo.com", second) == -1) { tt_abort_msg("Couldn't add vhost"); } if (evhttp_add_virtual_host(http, "bar.*.foo.com", third) == -1) { tt_abort_msg("Couldn't add wildcarded vhost"); } /* add some aliases to the vhosts */ tt_assert(evhttp_add_server_alias(second, "manolito.info") == 0); tt_assert(evhttp_add_server_alias(third, "bonkers.org") == 0); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); /* make a request with a different host and expect an error */ req = evhttp_request_new(http_request_expect_error, data->base); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/funnybunny") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_assert(test_ok == 1); test_ok = 0; /* make a request with the right host and expect a response */ req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "foo.com"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/funnybunny") == -1) { fprintf(stdout, "FAILED\n"); exit(1); } event_base_dispatch(data->base); tt_assert(test_ok == 1); test_ok = 0; /* make a request with the right host and expect a response */ req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "bar.magic.foo.com"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/blackcoffee") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_assert(test_ok == 1) test_ok = 0; /* make a request with the right host and expect a response */ req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "manolito.info"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/funnybunny") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_assert(test_ok == 1) test_ok = 0; /* make a request with the right host and expect a response */ req = evhttp_request_new(http_request_done, (void*) BASIC_REQUEST_BODY); /* Add the Host header. This time with the optional port. */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "bonkers.org:8000"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/blackcoffee") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_assert(test_ok == 1) test_ok = 0; /* Now make a raw request with an absolute URI. */ fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_readcb, http_writecb, http_errorcb, NULL); /* The host in the URI should override the Host: header */ http_request = "GET http://manolito.info/funnybunny HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); event_base_dispatch(data->base); tt_int_op(test_ok, ==, 2); bufferevent_free(bev); evutil_closesocket(fd); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } /* test date header and content length */ static void http_request_empty_done(struct evhttp_request *req, void *arg) { if (evhttp_request_get_response_code(req) != HTTP_OK) { fprintf(stderr, "FAILED\n"); exit(1); } if (evhttp_find_header(evhttp_request_get_input_headers(req), "Date") == NULL) { fprintf(stderr, "FAILED\n"); exit(1); } if (evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Length") == NULL) { fprintf(stderr, "FAILED\n"); exit(1); } if (strcmp(evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Length"), "0")) { fprintf(stderr, "FAILED\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != 0) { fprintf(stderr, "FAILED\n"); exit(1); } test_ok = 1; EVUTIL_ASSERT(arg); event_base_loopexit(arg, NULL); } /* * HTTP DISPATCHER test */ void http_dispatcher_cb(struct evhttp_request *req, void *arg) { struct evbuffer *evb = evbuffer_new(); event_debug(("%s: called\n", __func__)); evbuffer_add_printf(evb, "DISPATCHER_TEST"); evhttp_send_reply(req, HTTP_OK, "Everything is fine", evb); evbuffer_free(evb); } static void http_dispatcher_test_done(struct evhttp_request *req, void *arg) { struct event_base *base = arg; const char *what = "DISPATCHER_TEST"; if (evhttp_request_get_response_code(req) != HTTP_OK) { fprintf(stderr, "FAILED\n"); exit(1); } if (evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Type") == NULL) { fprintf(stderr, "FAILED (content type)\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != strlen(what)) { fprintf(stderr, "FAILED (length %lu vs %lu)\n", (unsigned long)evbuffer_get_length(evhttp_request_get_input_buffer(req)), (unsigned long)strlen(what)); exit(1); } if (evbuffer_datacmp(evhttp_request_get_input_buffer(req), what) != 0) { fprintf(stderr, "FAILED (data)\n"); exit(1); } test_ok = 1; event_base_loopexit(base, NULL); } static void http_dispatcher_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; test_ok = 0; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); /* also bind to local host */ evhttp_connection_set_local_address(evcon, "127.0.0.1"); /* * At this point, we want to schedule an HTTP GET request * server using our make request method. */ req = evhttp_request_new(http_dispatcher_test_done, data->base); tt_assert(req); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/?arg=val") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } /* * HTTP POST test. */ void http_postrequest_done(struct evhttp_request *, void *); #define POST_DATA "Okay. Not really printf" static void http_post_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; test_ok = 0; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); /* * At this point, we want to schedule an HTTP POST request * server using our make request method. */ req = evhttp_request_new(http_postrequest_done, data->base); tt_assert(req); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); evbuffer_add_printf(evhttp_request_get_output_buffer(req), POST_DATA); if (evhttp_make_request(evcon, req, EVHTTP_REQ_POST, "/postit") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_int_op(test_ok, ==, 1); test_ok = 0; req = evhttp_request_new(http_postrequest_done, data->base); tt_assert(req); /* Now try with 100-continue. */ /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); evhttp_add_header(evhttp_request_get_output_headers(req), "Expect", "100-continue"); evbuffer_add_printf(evhttp_request_get_output_buffer(req), POST_DATA); if (evhttp_make_request(evcon, req, EVHTTP_REQ_POST, "/postit") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_int_op(test_ok, ==, 1); evhttp_connection_free(evcon); evhttp_free(http); end: ; } void http_post_cb(struct evhttp_request *req, void *arg) { struct evbuffer *evb; event_debug(("%s: called\n", __func__)); /* Yes, we are expecting a post request */ if (evhttp_request_get_command(req) != EVHTTP_REQ_POST) { fprintf(stdout, "FAILED (post type)\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != strlen(POST_DATA)) { fprintf(stdout, "FAILED (length: %lu vs %lu)\n", (unsigned long) evbuffer_get_length(evhttp_request_get_input_buffer(req)), (unsigned long) strlen(POST_DATA)); exit(1); } if (evbuffer_datacmp(evhttp_request_get_input_buffer(req), POST_DATA) != 0) { fprintf(stdout, "FAILED (data)\n"); fprintf(stdout, "Got :%s\n", evbuffer_pullup(evhttp_request_get_input_buffer(req),-1)); fprintf(stdout, "Want:%s\n", POST_DATA); exit(1); } evb = evbuffer_new(); evbuffer_add_printf(evb, BASIC_REQUEST_BODY); evhttp_send_reply(req, HTTP_OK, "Everything is fine", evb); evbuffer_free(evb); } void http_postrequest_done(struct evhttp_request *req, void *arg) { const char *what = BASIC_REQUEST_BODY; struct event_base *base = arg; if (req == NULL) { fprintf(stderr, "FAILED (timeout)\n"); exit(1); } if (evhttp_request_get_response_code(req) != HTTP_OK) { fprintf(stderr, "FAILED (response code)\n"); exit(1); } if (evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Type") == NULL) { fprintf(stderr, "FAILED (content type)\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != strlen(what)) { fprintf(stderr, "FAILED (length %lu vs %lu)\n", (unsigned long)evbuffer_get_length(evhttp_request_get_input_buffer(req)), (unsigned long)strlen(what)); exit(1); } if (evbuffer_datacmp(evhttp_request_get_input_buffer(req), what) != 0) { fprintf(stderr, "FAILED (data)\n"); exit(1); } test_ok = 1; event_base_loopexit(base, NULL); } /* * HTTP PUT test, basically just like POST, but ... */ void http_putrequest_done(struct evhttp_request *, void *); #define PUT_DATA "Hi, I'm some PUT data" static void http_put_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; test_ok = 0; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); /* * Schedule the HTTP PUT request */ req = evhttp_request_new(http_putrequest_done, data->base); tt_assert(req); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "someotherhost"); evbuffer_add_printf(evhttp_request_get_output_buffer(req), PUT_DATA); if (evhttp_make_request(evcon, req, EVHTTP_REQ_PUT, "/putit") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); evhttp_connection_free(evcon); evhttp_free(http); tt_int_op(test_ok, ==, 1); end: ; } void http_put_cb(struct evhttp_request *req, void *arg) { struct evbuffer *evb; event_debug(("%s: called\n", __func__)); /* Expecting a PUT request */ if (evhttp_request_get_command(req) != EVHTTP_REQ_PUT) { fprintf(stdout, "FAILED (put type)\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != strlen(PUT_DATA)) { fprintf(stdout, "FAILED (length: %lu vs %lu)\n", (unsigned long)evbuffer_get_length(evhttp_request_get_input_buffer(req)), (unsigned long)strlen(PUT_DATA)); exit(1); } if (evbuffer_datacmp(evhttp_request_get_input_buffer(req), PUT_DATA) != 0) { fprintf(stdout, "FAILED (data)\n"); fprintf(stdout, "Got :%s\n", evbuffer_pullup(evhttp_request_get_input_buffer(req),-1)); fprintf(stdout, "Want:%s\n", PUT_DATA); exit(1); } evb = evbuffer_new(); evbuffer_add_printf(evb, "That ain't funny"); evhttp_send_reply(req, HTTP_OK, "Everything is great", evb); evbuffer_free(evb); } void http_putrequest_done(struct evhttp_request *req, void *arg) { struct event_base *base = arg; const char *what = "That ain't funny"; if (req == NULL) { fprintf(stderr, "FAILED (timeout)\n"); exit(1); } if (evhttp_request_get_response_code(req) != HTTP_OK) { fprintf(stderr, "FAILED (response code)\n"); exit(1); } if (evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Type") == NULL) { fprintf(stderr, "FAILED (content type)\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != strlen(what)) { fprintf(stderr, "FAILED (length %lu vs %lu)\n", (unsigned long)evbuffer_get_length(evhttp_request_get_input_buffer(req)), (unsigned long)strlen(what)); exit(1); } if (evbuffer_datacmp(evhttp_request_get_input_buffer(req), what) != 0) { fprintf(stderr, "FAILED (data)\n"); exit(1); } test_ok = 1; event_base_loopexit(base, NULL); } static void http_failure_readcb(struct bufferevent *bev, void *arg) { const char *what = "400 Bad Request"; if (evbuffer_contains(bufferevent_get_input(bev), what)) { test_ok = 2; bufferevent_disable(bev, EV_READ); event_base_loopexit(arg, NULL); } } /* * Testing that the HTTP server can deal with a malformed request. */ static void http_failure_test(void *arg) { struct basic_test_data *data = arg; struct bufferevent *bev; evutil_socket_t fd; const char *http_request; ev_uint16_t port = 0; test_ok = 0; http = http_setup(&port, data->base, 0); fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_failure_readcb, http_writecb, http_errorcb, data->base); http_request = "illegal request\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); event_base_dispatch(data->base); bufferevent_free(bev); evutil_closesocket(fd); evhttp_free(http); tt_int_op(test_ok, ==, 2); end: ; } static void close_detect_done(struct evhttp_request *req, void *arg) { struct timeval tv; tt_assert(req); tt_assert(evhttp_request_get_response_code(req) == HTTP_OK); test_ok = 1; end: evutil_timerclear(&tv); tv.tv_sec = 3; event_base_loopexit(arg, &tv); } static void close_detect_launch(evutil_socket_t fd, short what, void *arg) { struct evhttp_connection *evcon = arg; struct event_base *base = evhttp_connection_get_base(evcon); struct evhttp_request *req; req = evhttp_request_new(close_detect_done, base); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/test") == -1) { tt_fail_msg("Couldn't make request"); } } static void close_detect_cb(struct evhttp_request *req, void *arg) { struct evhttp_connection *evcon = arg; struct event_base *base = evhttp_connection_get_base(evcon); struct timeval tv; if (req != NULL && evhttp_request_get_response_code(req) != HTTP_OK) { tt_abort_msg("Failed"); } evutil_timerclear(&tv); tv.tv_sec = 3; /* longer than the http time out */ /* launch a new request on the persistent connection in 3 seconds */ event_base_once(base, -1, EV_TIMEOUT, close_detect_launch, evcon, &tv); end: ; } static void _http_close_detection(struct basic_test_data *data, int with_delay) { ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; test_ok = 0; http = http_setup(&port, data->base, 0); /* 2 second timeout */ evhttp_set_timeout(http, 1); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); delayed_client = evcon; /* * At this point, we want to schedule a request to the HTTP * server using our make request method. */ req = evhttp_request_new(close_detect_cb, evcon); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, with_delay ? "/largedelay" : "/test") == -1) { tt_abort_msg("couldn't make request"); } event_base_dispatch(data->base); /* at this point, the http server should have no connection */ tt_assert(TAILQ_FIRST(&http->connections) == NULL); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } static void http_close_detection_test(void *arg) { _http_close_detection(arg, 0); } static void http_close_detection_delay_test(void *arg) { _http_close_detection(arg, 1); } static void http_highport_test(void *arg) { struct basic_test_data *data = arg; int i = -1; struct evhttp *myhttp = NULL; /* Try a few different ports */ for (i = 0; i < 50; ++i) { myhttp = evhttp_new(data->base); if (evhttp_bind_socket(myhttp, "127.0.0.1", 65535 - i) == 0) { test_ok = 1; evhttp_free(myhttp); return; } evhttp_free(myhttp); } tt_fail_msg("Couldn't get a high port"); } static void http_bad_header_test(void *ptr) { struct evkeyvalq headers; TAILQ_INIT(&headers); tt_want(evhttp_add_header(&headers, "One", "Two") == 0); tt_want(evhttp_add_header(&headers, "One", "Two\r\n Three") == 0); tt_want(evhttp_add_header(&headers, "One\r", "Two") == -1); tt_want(evhttp_add_header(&headers, "One\n", "Two") == -1); tt_want(evhttp_add_header(&headers, "One", "Two\r") == -1); tt_want(evhttp_add_header(&headers, "One", "Two\n") == -1); evhttp_clear_headers(&headers); } static int validate_header( const struct evkeyvalq* headers, const char *key, const char *value) { const char *real_val = evhttp_find_header(headers, key); tt_assert(real_val != NULL); tt_want(strcmp(real_val, value) == 0); end: return (0); } static void http_parse_query_test(void *ptr) { struct evkeyvalq headers; int r; TAILQ_INIT(&headers); r = evhttp_parse_query("http://www.test.com/?q=test", &headers); tt_want(validate_header(&headers, "q", "test") == 0); tt_int_op(r, ==, 0); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=test&foo=bar", &headers); tt_want(validate_header(&headers, "q", "test") == 0); tt_want(validate_header(&headers, "foo", "bar") == 0); tt_int_op(r, ==, 0); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=test+foo", &headers); tt_want(validate_header(&headers, "q", "test foo") == 0); tt_int_op(r, ==, 0); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=test%0Afoo", &headers); tt_want(validate_header(&headers, "q", "test\nfoo") == 0); tt_int_op(r, ==, 0); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=test%0Dfoo", &headers); tt_want(validate_header(&headers, "q", "test\rfoo") == 0); tt_int_op(r, ==, 0); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=test&&q2", &headers); tt_int_op(r, ==, -1); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=test+this", &headers); tt_want(validate_header(&headers, "q", "test this") == 0); tt_int_op(r, ==, 0); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=test&q2=foo", &headers); tt_int_op(r, ==, 0); tt_want(validate_header(&headers, "q", "test") == 0); tt_want(validate_header(&headers, "q2", "foo") == 0); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q&q2=foo", &headers); tt_int_op(r, ==, -1); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=foo&q2", &headers); tt_int_op(r, ==, -1); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=foo&q2&q3=x", &headers); tt_int_op(r, ==, -1); evhttp_clear_headers(&headers); r = evhttp_parse_query("http://www.test.com/?q=&q2=&q3=", &headers); tt_int_op(r, ==, 0); tt_want(validate_header(&headers, "q", "") == 0); tt_want(validate_header(&headers, "q2", "") == 0); tt_want(validate_header(&headers, "q3", "") == 0); evhttp_clear_headers(&headers); end: evhttp_clear_headers(&headers); } static void http_parse_uri_test(void *ptr) { const int nonconform = (ptr != NULL); const unsigned parse_flags = nonconform ? EVHTTP_URI_NONCONFORMANT : 0; struct evhttp_uri *uri = NULL; char url_tmp[4096]; #define URI_PARSE(uri) \ evhttp_uri_parse_with_flags((uri), parse_flags) #define TT_URI(want) do { \ char *ret = evhttp_uri_join(uri, url_tmp, sizeof(url_tmp)); \ tt_want(ret != NULL); \ tt_want(ret == url_tmp); \ if (strcmp(ret,want) != 0) \ TT_FAIL(("\"%s\" != \"%s\"",ret,want)); \ } while(0) tt_want(evhttp_uri_join(NULL, 0, 0) == NULL); tt_want(evhttp_uri_join(NULL, url_tmp, 0) == NULL); tt_want(evhttp_uri_join(NULL, url_tmp, sizeof(url_tmp)) == NULL); /* bad URIs: parsing */ #define BAD(s) do { \ if (URI_PARSE(s) != NULL) \ TT_FAIL(("Expected error parsing \"%s\"",s)); \ } while(0) /* Nonconformant URIs we can parse: parsing */ #define NCF(s) do { \ uri = URI_PARSE(s); \ if (uri != NULL && !nonconform) { \ TT_FAIL(("Expected error parsing \"%s\"",s)); \ } else if (uri == NULL && nonconform) { \ TT_FAIL(("Couldn't parse nonconformant URI \"%s\"", \ s)); \ } \ if (uri) { \ tt_want(evhttp_uri_join(uri, url_tmp, \ sizeof(url_tmp))); \ evhttp_uri_free(uri); \ } \ } while(0) NCF("http://www.test.com/ why hello"); NCF("http://www.test.com/why-hello\x01"); NCF("http://www.test.com/why-hello?\x01"); NCF("http://www.test.com/why-hello#\x01"); BAD("http://www.\x01.test.com/why-hello"); BAD("http://www.%7test.com/why-hello"); NCF("http://www.test.com/why-hell%7o"); BAD("h%3ttp://www.test.com/why-hello"); NCF("http://www.test.com/why-hello%7"); NCF("http://www.test.com/why-hell%7o"); NCF("http://www.test.com/foo?ba%r"); NCF("http://www.test.com/foo#ba%r"); BAD("99:99/foo"); BAD("http://www.test.com:999x/"); BAD("http://www.test.com:x/"); BAD("http://[hello-there]/"); BAD("http://[::1]]/"); BAD("http://[::1/"); BAD("http://[foob/"); BAD("http://[/"); BAD("http://[ffff:ffff:ffff:ffff:Ffff:ffff:ffff:" "ffff:ffff:ffff:ffff:ffff:ffff:ffff]/"); BAD("http://[vX.foo]/"); BAD("http://[vX.foo]/"); BAD("http://[v.foo]/"); BAD("http://[v5.fo%o]/"); BAD("http://[v5X]/"); BAD("http://[v5]/"); BAD("http://[]/"); BAD("http://f\x01red@www.example.com/"); BAD("http://f%0red@www.example.com/"); BAD("http://www.example.com:9999999999999999999999999999999999999/"); BAD("http://www.example.com:hihi/"); BAD("://www.example.com/"); /* bad URIs: joining */ uri = evhttp_uri_new(); tt_want(0==evhttp_uri_set_host(uri, "www.example.com")); tt_want(evhttp_uri_join(uri, url_tmp, sizeof(url_tmp)) != NULL); /* not enough space: */ tt_want(evhttp_uri_join(uri, url_tmp, 3) == NULL); /* host is set, but path doesn't start with "/": */ tt_want(0==evhttp_uri_set_path(uri, "hi_mom")); tt_want(evhttp_uri_join(uri, url_tmp, sizeof(url_tmp)) == NULL); tt_want(evhttp_uri_join(uri, NULL, sizeof(url_tmp))==NULL); tt_want(evhttp_uri_join(uri, url_tmp, 0)==NULL); evhttp_uri_free(uri); uri = URI_PARSE("mailto:foo@bar"); tt_want(uri != NULL); tt_want(evhttp_uri_get_host(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(!strcmp(evhttp_uri_get_scheme(uri), "mailto")); tt_want(!strcmp(evhttp_uri_get_path(uri), "foo@bar")); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("mailto:foo@bar"); evhttp_uri_free(uri); uri = evhttp_uri_new(); /* Bad URI usage: setting invalid values */ tt_want(-1 == evhttp_uri_set_scheme(uri,"")); tt_want(-1 == evhttp_uri_set_scheme(uri,"33")); tt_want(-1 == evhttp_uri_set_scheme(uri,"hi!")); tt_want(-1 == evhttp_uri_set_userinfo(uri,"hello@")); tt_want(-1 == evhttp_uri_set_host(uri,"[1.2.3.4]")); tt_want(-1 == evhttp_uri_set_host(uri,"[")); tt_want(-1 == evhttp_uri_set_host(uri,"www.[foo].com")); tt_want(-1 == evhttp_uri_set_port(uri,-3)); tt_want(-1 == evhttp_uri_set_path(uri,"hello?world")); tt_want(-1 == evhttp_uri_set_query(uri,"hello#world")); tt_want(-1 == evhttp_uri_set_fragment(uri,"hello#world")); /* Valid URI usage: setting valid values */ tt_want(0 == evhttp_uri_set_scheme(uri,"http")); tt_want(0 == evhttp_uri_set_scheme(uri,NULL)); tt_want(0 == evhttp_uri_set_userinfo(uri,"username:pass")); tt_want(0 == evhttp_uri_set_userinfo(uri,NULL)); tt_want(0 == evhttp_uri_set_host(uri,"www.example.com")); tt_want(0 == evhttp_uri_set_host(uri,"1.2.3.4")); tt_want(0 == evhttp_uri_set_host(uri,"[1:2:3:4::]")); tt_want(0 == evhttp_uri_set_host(uri,"[v7.wobblewobble]")); tt_want(0 == evhttp_uri_set_host(uri,NULL)); tt_want(0 == evhttp_uri_set_host(uri,"")); tt_want(0 == evhttp_uri_set_port(uri, -1)); tt_want(0 == evhttp_uri_set_port(uri, 80)); tt_want(0 == evhttp_uri_set_port(uri, 65535)); tt_want(0 == evhttp_uri_set_path(uri, "")); tt_want(0 == evhttp_uri_set_path(uri, "/documents/public/index.html")); tt_want(0 == evhttp_uri_set_path(uri, NULL)); tt_want(0 == evhttp_uri_set_query(uri, "key=val&key2=val2")); tt_want(0 == evhttp_uri_set_query(uri, "keyvalblarg")); tt_want(0 == evhttp_uri_set_query(uri, "")); tt_want(0 == evhttp_uri_set_query(uri, NULL)); tt_want(0 == evhttp_uri_set_fragment(uri, "")); tt_want(0 == evhttp_uri_set_fragment(uri, "here?i?am")); tt_want(0 == evhttp_uri_set_fragment(uri, NULL)); evhttp_uri_free(uri); /* Valid parsing */ uri = URI_PARSE("http://www.test.com/?q=t%33est"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "www.test.com") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=t%33est") == 0); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("http://www.test.com/?q=t%33est"); evhttp_uri_free(uri); uri = URI_PARSE("http://%77ww.test.com"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "%77ww.test.com") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("http://%77ww.test.com"); evhttp_uri_free(uri); uri = URI_PARSE("http://www.test.com?q=test"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "www.test.com") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=test") == 0); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("http://www.test.com?q=test"); evhttp_uri_free(uri); uri = URI_PARSE("http://www.test.com#fragment"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "www.test.com") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want_str_op(evhttp_uri_get_fragment(uri), ==, "fragment"); TT_URI("http://www.test.com#fragment"); evhttp_uri_free(uri); uri = URI_PARSE("http://8000/"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "8000") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("http://8000/"); evhttp_uri_free(uri); uri = URI_PARSE("http://:8000/"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == 8000); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("http://:8000/"); evhttp_uri_free(uri); uri = URI_PARSE("http://www.test.com:/"); /* empty port */ tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "www.test.com") == 0); tt_want_str_op(evhttp_uri_get_path(uri), ==, "/"); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("http://www.test.com/"); evhttp_uri_free(uri); uri = URI_PARSE("http://www.test.com:"); /* empty port 2 */ tt_want(strcmp(evhttp_uri_get_scheme(uri), "http") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "www.test.com") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("http://www.test.com"); evhttp_uri_free(uri); uri = URI_PARSE("ftp://www.test.com/?q=test"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "ftp") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "www.test.com") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=test") == 0); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("ftp://www.test.com/?q=test"); evhttp_uri_free(uri); uri = URI_PARSE("ftp://[::1]:999/?q=test"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "ftp") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "[::1]") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=test") == 0); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == 999); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("ftp://[::1]:999/?q=test"); evhttp_uri_free(uri); uri = URI_PARSE("ftp://[ff00::127.0.0.1]/?q=test"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "ftp") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "[ff00::127.0.0.1]") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=test") == 0); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("ftp://[ff00::127.0.0.1]/?q=test"); evhttp_uri_free(uri); uri = URI_PARSE("ftp://[v99.not_(any:time)_soon]/?q=test"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "ftp") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "[v99.not_(any:time)_soon]") == 0); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=test") == 0); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("ftp://[v99.not_(any:time)_soon]/?q=test"); evhttp_uri_free(uri); uri = URI_PARSE("scheme://user:pass@foo.com:42/?q=test&s=some+thing#fragment"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "scheme") == 0); tt_want(strcmp(evhttp_uri_get_userinfo(uri), "user:pass") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "foo.com") == 0); tt_want(evhttp_uri_get_port(uri) == 42); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=test&s=some+thing") == 0); tt_want(strcmp(evhttp_uri_get_fragment(uri), "fragment") == 0); TT_URI("scheme://user:pass@foo.com:42/?q=test&s=some+thing#fragment"); evhttp_uri_free(uri); uri = URI_PARSE("scheme://user@foo.com/#fragment"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "scheme") == 0); tt_want(strcmp(evhttp_uri_get_userinfo(uri), "user") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "foo.com") == 0); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(strcmp(evhttp_uri_get_fragment(uri), "fragment") == 0); TT_URI("scheme://user@foo.com/#fragment"); evhttp_uri_free(uri); uri = URI_PARSE("scheme://%75ser@foo.com/#frag@ment"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "scheme") == 0); tt_want(strcmp(evhttp_uri_get_userinfo(uri), "%75ser") == 0); tt_want(strcmp(evhttp_uri_get_host(uri), "foo.com") == 0); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "/") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(strcmp(evhttp_uri_get_fragment(uri), "frag@ment") == 0); TT_URI("scheme://%75ser@foo.com/#frag@ment"); evhttp_uri_free(uri); uri = URI_PARSE("file:///some/path/to/the/file"); tt_want(strcmp(evhttp_uri_get_scheme(uri), "file") == 0); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(strcmp(evhttp_uri_get_host(uri), "") == 0); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "/some/path/to/the/file") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("file:///some/path/to/the/file"); evhttp_uri_free(uri); uri = URI_PARSE("///some/path/to/the-file"); tt_want(uri != NULL); tt_want(evhttp_uri_get_scheme(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(strcmp(evhttp_uri_get_host(uri), "") == 0); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "/some/path/to/the-file") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("///some/path/to/the-file"); evhttp_uri_free(uri); uri = URI_PARSE("/s:ome/path/to/the-file?q=99#fred"); tt_want(uri != NULL); tt_want(evhttp_uri_get_scheme(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_host(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "/s:ome/path/to/the-file") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=99") == 0); tt_want(strcmp(evhttp_uri_get_fragment(uri), "fred") == 0); TT_URI("/s:ome/path/to/the-file?q=99#fred"); evhttp_uri_free(uri); uri = URI_PARSE("relative/path/with/co:lon"); tt_want(uri != NULL); tt_want(evhttp_uri_get_scheme(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_host(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "relative/path/with/co:lon") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(evhttp_uri_get_fragment(uri) == NULL); TT_URI("relative/path/with/co:lon"); evhttp_uri_free(uri); uri = URI_PARSE("bob?q=99&q2=q?33#fr?ed"); tt_want(uri != NULL); tt_want(evhttp_uri_get_scheme(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_host(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "bob") == 0); tt_want(strcmp(evhttp_uri_get_query(uri), "q=99&q2=q?33") == 0); tt_want(strcmp(evhttp_uri_get_fragment(uri), "fr?ed") == 0); TT_URI("bob?q=99&q2=q?33#fr?ed"); evhttp_uri_free(uri); uri = URI_PARSE("#fr?ed"); tt_want(uri != NULL); tt_want(evhttp_uri_get_scheme(uri) == NULL); tt_want(evhttp_uri_get_userinfo(uri) == NULL); tt_want(evhttp_uri_get_host(uri) == NULL); tt_want(evhttp_uri_get_port(uri) == -1); tt_want(strcmp(evhttp_uri_get_path(uri), "") == 0); tt_want(evhttp_uri_get_query(uri) == NULL); tt_want(strcmp(evhttp_uri_get_fragment(uri), "fr?ed") == 0); TT_URI("#fr?ed"); evhttp_uri_free(uri); #undef URI_PARSE #undef TT_URI #undef BAD } static void http_uriencode_test(void *ptr) { char *s=NULL, *s2=NULL; size_t sz; #define ENC(from,want,plus) do { \ s = evhttp_uriencode((from), -1, (plus)); \ tt_assert(s); \ tt_str_op(s,==,(want)); \ sz = -1; \ s2 = evhttp_uridecode((s), (plus), &sz); \ tt_assert(s2); \ tt_str_op(s2,==,(from)); \ tt_int_op(sz,==,strlen(from)); \ free(s); \ free(s2); \ s = s2 = NULL; \ } while (0) #define DEC(from,want,dp) do { \ s = evhttp_uridecode((from),(dp),&sz); \ tt_assert(s); \ tt_str_op(s,==,(want)); \ tt_int_op(sz,==,strlen(want)); \ free(s); \ s = NULL; \ } while (0) #define OLD_DEC(from,want) do { \ s = evhttp_decode_uri((from)); \ tt_assert(s); \ tt_str_op(s,==,(want)); \ free(s); \ s = NULL; \ } while (0) ENC("Hello", "Hello",0); ENC("99", "99",0); ENC("", "",0); ENC( "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789-.~_", "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789-.~_",0); ENC(" ", "%20",0); ENC(" ", "+",1); ENC("\xff\xf0\xe0", "%FF%F0%E0",0); ENC("\x01\x19", "%01%19",1); ENC("http://www.ietf.org/rfc/rfc3986.txt", "http%3A%2F%2Fwww.ietf.org%2Frfc%2Frfc3986.txt",1); ENC("1+2=3", "1%2B2%3D3",1); ENC("1+2=3", "1%2B2%3D3",0); /* Now try encoding with internal NULs. */ s = evhttp_uriencode("hello\0world", 11, 0); tt_assert(s); tt_str_op(s,==,"hello%00world"); free(s); s = NULL; /* Now try out some decoding cases that we don't generate with * encode_uri: Make sure that malformed stuff doesn't crash... */ DEC("%%xhello th+ere \xff", "%%xhello th+ere \xff", 0); /* Make sure plus decoding works */ DEC("plus+should%20work+", "plus should work ",1); /* Try some lowercase hex */ DEC("%f0%a0%b0", "\xf0\xa0\xb0",1); /* Try an internal NUL. */ sz = 0; s = evhttp_uridecode("%00%00x%00%00", 1, &sz); tt_int_op(sz,==,5); tt_assert(!memcmp(s, "\0\0x\0\0", 5)); free(s); s = NULL; /* Try with size == NULL */ sz = 0; s = evhttp_uridecode("%00%00x%00%00", 1, NULL); tt_assert(!memcmp(s, "\0\0x\0\0", 5)); free(s); s = NULL; /* Test out the crazy old behavior of the deprecated * evhttp_decode_uri */ OLD_DEC("http://example.com/normal+path/?key=val+with+spaces", "http://example.com/normal+path/?key=val with spaces"); end: if (s) free(s); if (s2) free(s2); #undef ENC #undef DEC #undef OLD_DEC } static void http_base_test(void *ptr) { struct event_base *base = NULL; struct bufferevent *bev; evutil_socket_t fd; const char *http_request; ev_uint16_t port = 0; test_ok = 0; base = event_base_new(); http = http_setup(&port, base, 0); fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(base, fd, 0); bufferevent_setcb(bev, http_readcb, http_writecb, http_errorcb, base); bufferevent_base_set(base, bev); http_request = "GET /test HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); event_base_dispatch(base); bufferevent_free(bev); evutil_closesocket(fd); evhttp_free(http); tt_int_op(test_ok, ==, 2); end: if (base) event_base_free(base); } /* * the server is just going to close the connection if it times out during * reading the headers. */ static void http_incomplete_readcb(struct bufferevent *bev, void *arg) { test_ok = -1; event_base_loopexit(exit_base,NULL); } static void http_incomplete_errorcb(struct bufferevent *bev, short what, void *arg) { if (what == (BEV_EVENT_READING|BEV_EVENT_EOF)) test_ok++; else test_ok = -2; event_base_loopexit(exit_base,NULL); } static void http_incomplete_writecb(struct bufferevent *bev, void *arg) { if (arg != NULL) { evutil_socket_t fd = *(evutil_socket_t *)arg; /* terminate the write side to simulate EOF */ shutdown(fd, SHUT_WR); } if (evbuffer_get_length(bufferevent_get_output(bev)) == 0) { /* enable reading of the reply */ bufferevent_enable(bev, EV_READ); test_ok++; } } static void _http_incomplete_test(struct basic_test_data *data, int use_timeout) { struct bufferevent *bev; evutil_socket_t fd; const char *http_request; ev_uint16_t port = 0; struct timeval tv_start, tv_end; exit_base = data->base; test_ok = 0; http = http_setup(&port, data->base, 0); evhttp_set_timeout(http, 1); fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_incomplete_readcb, http_incomplete_writecb, http_incomplete_errorcb, use_timeout ? NULL : &fd); http_request = "GET /test HTTP/1.1\r\n" "Host: somehost\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); evutil_gettimeofday(&tv_start, NULL); event_base_dispatch(data->base); evutil_gettimeofday(&tv_end, NULL); evutil_timersub(&tv_end, &tv_start, &tv_end); bufferevent_free(bev); if (use_timeout) { evutil_closesocket(fd); } evhttp_free(http); if (use_timeout && tv_end.tv_sec >= 3) { tt_abort_msg("time"); } else if (!use_timeout && tv_end.tv_sec >= 1) { /* we should be done immediately */ tt_abort_msg("time"); } tt_int_op(test_ok, ==, 2); end: ; } static void http_incomplete_test(void *arg) { _http_incomplete_test(arg, 0); } static void http_incomplete_timeout_test(void *arg) { _http_incomplete_test(arg, 1); } /* * the server is going to reply with chunked data. */ static void http_chunked_readcb(struct bufferevent *bev, void *arg) { /* nothing here */ } static void http_chunked_errorcb(struct bufferevent *bev, short what, void *arg) { if (!test_ok) goto out; test_ok = -1; if ((what & BEV_EVENT_EOF) != 0) { struct evhttp_request *req = evhttp_request_new(NULL, NULL); const char *header; enum message_read_status done; /* req->kind = EVHTTP_RESPONSE; */ done = evhttp_parse_firstline(req, bufferevent_get_input(bev)); if (done != ALL_DATA_READ) goto out; done = evhttp_parse_headers(req, bufferevent_get_input(bev)); if (done != ALL_DATA_READ) goto out; header = evhttp_find_header(evhttp_request_get_input_headers(req), "Transfer-Encoding"); if (header == NULL || strcmp(header, "chunked")) goto out; header = evhttp_find_header(evhttp_request_get_input_headers(req), "Connection"); if (header == NULL || strcmp(header, "close")) goto out; header = evbuffer_readln(bufferevent_get_input(bev), NULL, EVBUFFER_EOL_CRLF); if (header == NULL) goto out; /* 13 chars */ if (strcmp(header, "d")) { free((void*)header); goto out; } free((void*)header); if (strncmp((char *)evbuffer_pullup(bufferevent_get_input(bev), 13), "This is funny", 13)) goto out; evbuffer_drain(bufferevent_get_input(bev), 13 + 2); header = evbuffer_readln(bufferevent_get_input(bev), NULL, EVBUFFER_EOL_CRLF); if (header == NULL) goto out; /* 18 chars */ if (strcmp(header, "12")) goto out; free((char *)header); if (strncmp((char *)evbuffer_pullup(bufferevent_get_input(bev), 18), "but not hilarious.", 18)) goto out; evbuffer_drain(bufferevent_get_input(bev), 18 + 2); header = evbuffer_readln(bufferevent_get_input(bev), NULL, EVBUFFER_EOL_CRLF); if (header == NULL) goto out; /* 8 chars */ if (strcmp(header, "8")) { free((void*)header); goto out; } free((char *)header); if (strncmp((char *)evbuffer_pullup(bufferevent_get_input(bev), 8), "bwv 1052.", 8)) goto out; evbuffer_drain(bufferevent_get_input(bev), 8 + 2); header = evbuffer_readln(bufferevent_get_input(bev), NULL, EVBUFFER_EOL_CRLF); if (header == NULL) goto out; /* 0 chars */ if (strcmp(header, "0")) { free((void*)header); goto out; } free((void *)header); test_ok = 2; evhttp_request_free(req); } out: event_base_loopexit(arg, NULL); } static void http_chunked_writecb(struct bufferevent *bev, void *arg) { if (evbuffer_get_length(bufferevent_get_output(bev)) == 0) { /* enable reading of the reply */ bufferevent_enable(bev, EV_READ); test_ok++; } } static void http_chunked_request_done(struct evhttp_request *req, void *arg) { if (evhttp_request_get_response_code(req) != HTTP_OK) { fprintf(stderr, "FAILED\n"); exit(1); } if (evhttp_find_header(evhttp_request_get_input_headers(req), "Transfer-Encoding") == NULL) { fprintf(stderr, "FAILED\n"); exit(1); } if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != 13 + 18 + 8) { fprintf(stderr, "FAILED\n"); exit(1); } if (strncmp((char *)evbuffer_pullup(evhttp_request_get_input_buffer(req), 13 + 18 + 8), "This is funnybut not hilarious.bwv 1052", 13 + 18 + 8)) { fprintf(stderr, "FAILED\n"); exit(1); } test_ok = 1; event_base_loopexit(arg, NULL); } static void http_chunk_out_test(void *arg) { struct basic_test_data *data = arg; struct bufferevent *bev; evutil_socket_t fd; const char *http_request; ev_uint16_t port = 0; struct timeval tv_start, tv_end; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; int i; exit_base = data->base; test_ok = 0; http = http_setup(&port, data->base, 0); fd = http_connect("127.0.0.1", port); /* Stupid thing to send a request */ bev = bufferevent_socket_new(data->base, fd, 0); bufferevent_setcb(bev, http_chunked_readcb, http_chunked_writecb, http_chunked_errorcb, data->base); http_request = "GET /chunked HTTP/1.1\r\n" "Host: somehost\r\n" "Connection: close\r\n" "\r\n"; bufferevent_write(bev, http_request, strlen(http_request)); evutil_gettimeofday(&tv_start, NULL); event_base_dispatch(data->base); bufferevent_free(bev); evutil_gettimeofday(&tv_end, NULL); evutil_timersub(&tv_end, &tv_start, &tv_end); tt_int_op(tv_end.tv_sec, <, 1); tt_int_op(test_ok, ==, 2); /* now try again with the regular connection object */ evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); /* make two requests to check the keepalive behavior */ for (i = 0; i < 2; i++) { test_ok = 0; req = evhttp_request_new(http_chunked_request_done,data->base); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/chunked") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_assert(test_ok == 1); } end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } static void http_stream_out_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; test_ok = 0; exit_base = data->base; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); /* * At this point, we want to schedule a request to the HTTP * server using our make request method. */ req = evhttp_request_new(http_request_done, (void *)"This is funnybut not hilarious.bwv 1052"); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/streamed") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } static void http_stream_in_chunk(struct evhttp_request *req, void *arg) { struct evbuffer *reply = arg; if (evhttp_request_get_response_code(req) != HTTP_OK) { fprintf(stderr, "FAILED\n"); exit(1); } evbuffer_add_buffer(reply, evhttp_request_get_input_buffer(req)); } static void http_stream_in_done(struct evhttp_request *req, void *arg) { if (evbuffer_get_length(evhttp_request_get_input_buffer(req)) != 0) { fprintf(stderr, "FAILED\n"); exit(1); } event_base_loopexit(exit_base, NULL); } /** * Makes a request and reads the response in chunks. */ static void _http_stream_in_test(struct basic_test_data *data, char const *url, size_t expected_len, char const *expected) { struct evhttp_connection *evcon; struct evbuffer *reply = evbuffer_new(); struct evhttp_request *req = NULL; ev_uint16_t port = 0; exit_base = data->base; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, NULL,"127.0.0.1", port); tt_assert(evcon); req = evhttp_request_new(http_stream_in_done, reply); evhttp_request_set_chunked_cb(req, http_stream_in_chunk); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, url) == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); if (evbuffer_get_length(reply) != expected_len) { TT_DIE(("reply length %lu; expected %lu; FAILED (%s)\n", (unsigned long)evbuffer_get_length(reply), (unsigned long)expected_len, (char*)evbuffer_pullup(reply, -1))); } if (memcmp(evbuffer_pullup(reply, -1), expected, expected_len) != 0) { tt_abort_msg("Memory mismatch"); } test_ok = 1; end: if (reply) evbuffer_free(reply); if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } static void http_stream_in_test(void *arg) { _http_stream_in_test(arg, "/chunked", 13 + 18 + 8, "This is funnybut not hilarious.bwv 1052"); _http_stream_in_test(arg, "/test", strlen(BASIC_REQUEST_BODY), BASIC_REQUEST_BODY); } static void http_stream_in_cancel_chunk(struct evhttp_request *req, void *arg) { tt_int_op(evhttp_request_get_response_code(req), ==, HTTP_OK); end: evhttp_cancel_request(req); event_base_loopexit(arg, NULL); } static void http_stream_in_cancel_done(struct evhttp_request *req, void *arg) { /* should never be called */ tt_fail_msg("In cancel done"); } static void http_stream_in_cancel_test(void *arg) { struct basic_test_data *data = arg; struct evhttp_connection *evcon; struct evhttp_request *req = NULL; ev_uint16_t port = 0; http = http_setup(&port, data->base, 0); evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); req = evhttp_request_new(http_stream_in_cancel_done, data->base); evhttp_request_set_chunked_cb(req, http_stream_in_cancel_chunk); /* We give ownership of the request to the connection */ if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/chunked") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); test_ok = 1; end: evhttp_connection_free(evcon); evhttp_free(http); } static void http_connection_fail_done(struct evhttp_request *req, void *arg) { struct evhttp_connection *evcon = arg; struct event_base *base = evhttp_connection_get_base(evcon); /* An ENETUNREACH error results in an unrecoverable * evhttp_connection error (see evhttp_connection_fail()). The * connection will be reset, and the user will be notified with a NULL * req parameter. */ tt_assert(!req); evhttp_connection_free(evcon); test_ok = 1; end: event_base_loopexit(base, NULL); } /* Test unrecoverable evhttp_connection errors by generating an ENETUNREACH * error on connection. */ static void http_connection_fail_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; exit_base = data->base; test_ok = 0; /* auto detect a port */ http = http_setup(&port, data->base, 0); evhttp_free(http); http = NULL; /* Pick an unroutable address. This administratively scoped multicast * address should do when working with TCP. */ evcon = evhttp_connection_base_new(data->base, NULL, "239.10.20.30", 80); tt_assert(evcon); /* * At this point, we want to schedule an HTTP GET request * server using our make request method. */ req = evhttp_request_new(http_connection_fail_done, evcon); tt_assert(req); if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/") == -1) { tt_abort_msg("Couldn't make request"); } event_base_dispatch(data->base); tt_int_op(test_ok, ==, 1); end: ; } static void http_connection_retry_done(struct evhttp_request *req, void *arg) { tt_assert(req); tt_int_op(evhttp_request_get_response_code(req), !=, HTTP_OK); if (evhttp_find_header(evhttp_request_get_input_headers(req), "Content-Type") != NULL) { tt_abort_msg("(content type)\n"); } tt_uint_op(evbuffer_get_length(evhttp_request_get_input_buffer(req)), ==, 0); test_ok = 1; end: event_base_loopexit(arg,NULL); } static struct event_base *http_make_web_server_base=NULL; static void http_make_web_server(evutil_socket_t fd, short what, void *arg) { ev_uint16_t port = *(ev_uint16_t*)arg; http = http_setup(&port, http_make_web_server_base, 0); } static void http_connection_retry_test(void *arg) { struct basic_test_data *data = arg; ev_uint16_t port = 0; struct evhttp_connection *evcon = NULL; struct evhttp_request *req = NULL; struct timeval tv, tv_start, tv_end; exit_base = data->base; test_ok = 0; /* auto detect a port */ http = http_setup(&port, data->base, 0); evhttp_free(http); http = NULL; evcon = evhttp_connection_base_new(data->base, NULL, "127.0.0.1", port); tt_assert(evcon); evhttp_connection_set_timeout(evcon, 1); /* also bind to local host */ evhttp_connection_set_local_address(evcon, "127.0.0.1"); /* * At this point, we want to schedule an HTTP GET request * server using our make request method. */ req = evhttp_request_new(http_connection_retry_done, data->base); tt_assert(req); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/?arg=val") == -1) { tt_abort_msg("Couldn't make request"); } evutil_gettimeofday(&tv_start, NULL); event_base_dispatch(data->base); evutil_gettimeofday(&tv_end, NULL); evutil_timersub(&tv_end, &tv_start, &tv_end); tt_int_op(tv_end.tv_sec, <, 1); tt_int_op(test_ok, ==, 1); /* * now test the same but with retries */ test_ok = 0; evhttp_connection_set_timeout(evcon, 1); evhttp_connection_set_retries(evcon, 1); req = evhttp_request_new(http_connection_retry_done, data->base); tt_assert(req); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/?arg=val") == -1) { tt_abort_msg("Couldn't make request"); } evutil_gettimeofday(&tv_start, NULL); event_base_dispatch(data->base); evutil_gettimeofday(&tv_end, NULL); evutil_timersub(&tv_end, &tv_start, &tv_end); tt_int_op(tv_end.tv_sec, >, 1); tt_int_op(tv_end.tv_sec, <, 6); tt_assert(test_ok == 1); /* * now test the same but with retries and give it a web server * at the end */ test_ok = 0; evhttp_connection_set_timeout(evcon, 1); evhttp_connection_set_retries(evcon, 3); req = evhttp_request_new(http_dispatcher_test_done, data->base); tt_assert(req); /* Add the information that we care about */ evhttp_add_header(evhttp_request_get_output_headers(req), "Host", "somehost"); if (evhttp_make_request(evcon, req, EVHTTP_REQ_GET, "/?arg=val") == -1) { tt_abort_msg("Couldn't make request"); } /* start up a web server one second after the connection tried * to send a request */ evutil_timerclear(&tv); tv.tv_sec = 1; http_make_web_server_base = data->base; event_base_once(data->base, -1, EV_TIMEOUT, http_make_web_server, &port, &tv); evutil_gettimeofday(&tv_start, NULL); event_base_dispatch(data->base); evutil_gettimeofday(&tv_end, NULL); evutil_timersub(&tv_end, &tv_start, &tv_end); tt_int_op(tv_end.tv_sec, >, 1); tt_int_op(tv_end.tv_sec, <, 6); tt_int_op(test_ok, ==, 1); end: if (evcon) evhttp_connection_free(evcon); if (http) evhttp_free(http); } static void http_primitives(void *ptr) { char *escaped = NULL; struct evhttp *http = NULL; escaped = evhttp_htmlescape("