sxid-4.20130802/0000775007246000724600000000000012200642604010077 500000000000000sxid-4.20130802/NEWS0000664007246000724600000000276612200425255010532 00000000000000sXid 4.20130802 * New version scheme - V.YYYYMMDD. V is a major version number, YYYYMMDD is a date of sXid release. * Now sXid uses SHA-256 hash function to track files. MD5 is considered cryptographically broken. Please see http://www.kb.cert.org/vuls/id/836068. SHA-256 implementation is taken from PolarSSL and distributed under the terms GNU General Public License Version 2 or later. Please see https://polarssl.org. * autoconf settings updated to version 2.69. * Use automake 1.13.3 to generate Makefiles. * --version option added. * /media and /sys directories added to EXCLUDE option. * Manpages converted to mdoc macro. * README converted to Markdown format. * Some directories and files reorganisation. * License file COPYING added. * Minor code improvements. * Misc bug fixes. sXid 4.2 * Release used resources. Resource leaks found by cppcheck: [./source/logging.c:374]: (error) Resource leak: log [./source/md5sum.c:60]: (error) Resource leak: fp [./source/search.c:171]: (error) Resource leak: list Thanks to George Danchev for pointing this out. -- Timur Birsh Wed, 14 Sep 2009 21:11:45 +0600 sXid 4.1 * New maintainer. * New homepage - http://linukz.org/sxid.shtml. * Fix Debian bug#412853 'sxid reports many false positive md5sums changes'. Thanks to Ari Johnson . * Update FSF address in copyright notice. -- Timur Birsh Wed, 09 Sep 2009 15:18:27 +0600 sxid-4.20130802/ChangeLog0000664007246000724600000000460612200425255011600 000000000000002013-07-31 Timur Birsh Use SHA-256 hash function MD5 is considered cryptographically broken. Please see http://www.kb.cert.org/vuls/id/836068. SHA-256 implementation is taken from PolarSSL and distributed under the terms GNU General Public License Version 2 or later. Please see https://polarssl.org. 2013-07-30 Timur Birsh '--help' option should terminate program with the success exit code Add '--version' option Add '--help' option Use groff's mdoc macro 2013-07-27 Timur Birsh Add GNU-style change log 2013-07-26 Timur Birsh Use Markdown format 2013-07-25 Timur Birsh Update copyright notice Add license file 'COPYING' Add /media and /sys to 'EXCLUDE' option Check for sxid binary before executing it Binary should be install in bindir Add 'autogen.sh' to distribution Rename 'source' dir as 'src' Add 'autogen.sh' script It runs 'autoreconf' to populate autotools files. Ignore some autotools files Update autoconf settings to version 2.69 and use automake 1.13.3 2013-05-28 Timur Birsh Move sxid.{conf,cron} to examples dir Move rpm spec to contrib dir Remove empty TODO 2013-05-24 Timur Birsh Polish manpages 2013-05-21 Timur Birsh Remove .example extension 2012-10-10 Timur Birsh In get_value() signature, swap 'key' and 'value' arguments Move 'count' variable declaration into the while loop Get error string by strerror() Rename 'temp' variable to 'value' Use access() for checking config file Refactor get_value() little a bit Remove unused optindex variable 2012-10-09 Timur Birsh Use memset() instead of the legacy bzero() Use EXIT_FAILURE macros Fix compilation warnings gcc -g -O2 -I. -c conffile.c -o conffile.o conffile.c: In function ‘get_value’: conffile.c:50:32: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] conffile.c:50:29: warning: comparison between pointer and integer [enabled by default] conffile.c:51:34: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] conffile.c:51:31: warning: comparison between pointer and integer [enabled by default] Add .gitignore Use Linux kernel coding style 2009-10-09 Timur Birsh Fix manpage error sxid-4.20130802/Makefile.in0000664007246000724600000007716212200642530012077 00000000000000# Makefile.in generated by automake 1.13.3 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2013 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@ # sxid - suid, sgid file and directory checking # Copyright © 1999, 2000, 2002 Ben Collins # Copyright © 2009, 2013 Timur Birsh # 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 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. 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Create the # directory the slow way, step by step, checking for races as we go. case $dstdir in /*) prefix='/';; [-=\(\)!]*) prefix='./';; *) prefix='';; esac eval "$initialize_posix_glob" oIFS=$IFS IFS=/ $posix_glob set -f set fnord $dstdir shift $posix_glob set +f IFS=$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 "$dsttmp" 2>/dev/null` && eval "$initialize_posix_glob" && $posix_glob set -f && set X $old && old=:$2:$4:$5:$6 && set X $new && new=:$2:$4:$5:$6 && $posix_glob set +f && test "$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: sxid-4.20130802/COPYING0000664007246000724600000004325412175667216011103 00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) 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 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. sxid-4.20130802/contrib/0000775007246000724600000000000012176164624011554 500000000000000sxid-4.20130802/contrib/sxid.spec0000664007246000724600000000277312176164624013330 00000000000000Summary: suid, sgid file and directory checking Name: sxid Version: 4.0.5 Release: 1 Copyright: GPL Group: System Environment/Base #Source: http://www.phunnypharm.org/pub/sxid/sxid_4.0.4.tar.gz Source: sxid_4.0.4.tar.gz Packager: Ben Collins BuildRoot: /var/tmp/sxid-root %description This program runs as a cronjob. Basically it tracks any changes in your s[ug]id files and folders. If there are any new ones, ones that aren't set any more, or they have changed bits or other modes then it reports the changes. You can also run this manually for spot checking. It tracks s[ug]id files by md5 checksums. This helps detect if your files have been tampered with, would not show under normal name and permissions checking. Directories are tracked by inodes. %changelog * Mon Jun 14 1999 Alexandr D. Kanevskiy - Initial build for BCL 6.0 * Mon Jun 14 1999 Ben Collins - Added spec file to main source (thanks Alex) * Mon Jun 13 2000 Ben Collins - Updated spec %prep %setup %build make RPM_OPT_FLAGS="$RPM_OPT_FLAGS" %install rm -rf $RPM_BUILD_ROOT make DESTDIR=$RPM_BUILD_ROOT install mkdir -p $RPM_BUILD_ROOT/etc/cron.daily install debian/cron.daily $RPM_BUILD_ROOT/etc/cron.daily/sxid %clean rm -rf $RPM_BUILD_ROOT %files %attr(0644, root, root) %doc README docs/TODO %attr(0755, root, root) /usr/bin/* %attr(0755, root, root) /etc/cron.daily/sxid %attr(0644, root, root) /usr/man/* %attr(0644, root, root) %config /etc/sxid.conf sxid-4.20130802/autogen.sh0000775007246000724600000000004412174167554012036 00000000000000#!/bin/sh autoreconf -if || exit 1 sxid-4.20130802/missing0000755007246000724600000001533112200642530011415 00000000000000#! /bin/sh # Common wrapper for a few potentially missing GNU programs. scriptversion=2012-06-26.16; # UTC # Copyright (C) 1996-2013 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. 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. if test $# -eq 0; then echo 1>&2 "Try '$0 --help' for more information" exit 1 fi case $1 in --is-lightweight) # Used by our autoconf macros to check whether the available missing # script is modern enough. exit 0 ;; --run) # Back-compat with the calling convention used by older automake. shift ;; -h|--h|--he|--hel|--help) echo "\ $0 [OPTION]... PROGRAM [ARGUMENT]... Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due to PROGRAM being missing or too old. 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You may also peek at any GNU archive site, in" echo "case some other package contains this missing '$1' program." ;; esac } give_advice "$1" | sed -e '1s/^/WARNING: /' \ -e '2,$s/^/ /' >&2 # Propagate the correct exit status (expected to be 127 for a program # not found, 63 for a program that failed due to version mismatch). exit $st # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: sxid-4.20130802/configure.ac0000664007246000724600000000444312200425255012313 00000000000000dnl sxid - suid, sgid file and directory checking dnl Copyright © 1999, 2000, 2002 Ben Collins dnl Copyright © 2009, 2013 Timur Birsh dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2 of the License, or dnl (at your option) any later version. dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl You should have received a copy of the GNU General Public License along dnl with this program; if not, write to the Free Software Foundation, Inc., dnl 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. dnl Process this file with autoconf to produce a configure script. AC_INIT([sXid], [4.20130802], [taem@linukz.org], [sxid], [http://linukz.org/sxid.shtml]) AM_INIT_AUTOMAKE([foreign -Wall -Werror]) AC_PROG_CC AC_PROG_INSTALL mail_prog="mail" AC_CHECK_PROG([UNAME], [uname], [uname]) system=`$UNAME` AC_MSG_CHECKING([OS]) AC_MSG_RESULT([$system]) case $system in Linux) ;; *) mail_prog="sendmail" ;; esac if test "$mail_prog" = "mail"; then AC_DEFINE([CL_SUBJ], [1], [Define if your mailer accepts the subject in the body of the mail]) fi AC_PATH_PROG([MAIL_PROG], ["$mail_prog"], [/usr/bin/mail], [$PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/usr/lib]) AC_DEFINE_UNQUOTED([MAIL_PROG], ["$ac_cv_path_MAIL_PROG"], [Define to the location of the default mail program]) AC_CHECK_FUNC([getopt_long_only], [AC_DEFINE([HAVE_GETOPT], [1], [Define if you have getopt()])], [EXTRA_OBJ="getopt.o getopt1.o"]) AC_CHECK_FUNCS([strtok_r]) AC_SUBST([EXTRA_OBJ]) test "x$prefix" = xNONE && prefix="$ac_default_prefix" TMPCONF=`eval echo $sysconfdir` AC_SUBST([TMPCONF]) AC_DEFINE_UNQUOTED([CONF_FILE], ["${TMPCONF}/sxid.conf"], [Define to the location of the default config file]) AC_CONFIG_HEADERS([src/config.h]) AC_CONFIG_FILES([Makefile src/Makefile docs/sxid.1 docs/sxid.conf.5]) AC_OUTPUT sxid-4.20130802/README.md0000664007246000724600000000727012200425142011300 00000000000000sXid ==== suid, sgid file and directory checking. Overview ======== This program is meant to run as a cronjob. I have it run once a day, but busy shell boxes may want to run it twice a day. Basically it tracks any changes in your s[ug]id files and folders. If there are any new ones, ones that aren't set any more, or they have changed bits or other modes then it reports the changes. You can also run this manually for spot checking. It also tracks s[ug]id files by SHA-256 checksums. This helps detect if a root kit has been installed which would not show under normal name and permissions checking. Directories are tracked by inodes. To install, set the options in sxid.conf (/etc/sxid.conf when installed) and add an entry in root's crontab (it needs root permission to check ALL files and folders). All log files are created mode 600 so no one will be able to get a list. Notes on reading the output: - In the add remove section, new files are preceded by a '+', old ones are preceded by a '-' NOTE: that removed does not mean gone from the filesystem, just that it is no longer sgid or suid. - Most of it is pretty easy to understand. On the sections that show changes in the file's info (uid, gid, modes...) the format is old->new. So if the old owner was 'mail' and it is now 'root' then it shows it as mail->root. - The list of files in the checks is in the following format: /full/path *user.group MODE MODE is the 4 digit mode, as in 4755. In the changes section, if the line is preceded by an 'i' then that item has changed inodes since the last check (regardless of any s[ug]id change), if there is an 'm' then the SHA-256 checksum has changed. - If a user or group entry is preceded by a '*' then that is +s (ie. *root.wheel is suid, root.*wheel is sgid, *root.*wheel is +s) - On the forbidden directories, it enfore is enabled a 'r' will precede forbidden items that were succesfully -s'd, and a '!' will show that the was unsuccesfully -s'd (for what ever reason. Installation ============ To install sXid simply (requires GNU make): make install This will configure and compile the program then install it into /usr/local/bin by default. You can use sample config file examples/sxid.conf. By default sXid looks for config in /usr/local/etc. Please edit the conf file, it is well commented and very basic so no worries. Alternatively you can run ./configure manually with any options you may wish (./configure --help for options) then run 'make install' Afterwards place an entry into root's crontab. You can use the line in examples/sxid.cron. sXid is known to compile on these platforms: * Solaris 2.7/2.6/2.5.1x) * Linux GLIBC 2.0/2.1 and Libc5 on kernels 2.0.x to 2.2.x * AIX 4.x (and possibly 3.x) * HP/UX ([Peter Sulecki](mailto:psulecki@ios.krakow.pl)) * Tru64 UNIX ([Marc Baudoin](mailto:babafou@pasteur.fr)) It should compile on others as well. Finally ======= NOTE: If you were using any version prior to 3.2.4 you need to archive and remove the old logs since they aren't compatible with this version and will cause improbable errors in the output. Development =========== If you have patches, please fork sXid at GitHub https://github.com/taem/sxid. Or simply send your patches by e-mail (see below). If you found a bug, please report it at https://github.com/taem/sxid/issues. License ======= sXid is distributed under the terms GNU General Public License Version 2 or greater. Please see COPYING for full GNU GPL text. Homepage ======== Latest version can be found at http://linukz.org/sxid.shtml. Author ====== Original author is [Ben Collins](mailto:bcollins@debian.org). 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This case will never be run, # since it is checked for above. exit 1 ;; #nosideeffect) # This comment above is used by automake to tell side-effect # dependency tracking mechanisms from slower ones. dashmstdout) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout, regardless of -o. "$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # Remove '-o $object'. IFS=" " for arg do case $arg in -o) shift ;; $object) shift ;; *) set fnord "$@" "$arg" shift # fnord shift # $arg ;; esac done test -z "$dashmflag" && dashmflag=-M # Require at least two characters before searching for ':' # in the target name. This is to cope with DOS-style filenames: # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. "$@" $dashmflag | sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" rm -f "$depfile" cat < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this sed invocation # correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; dashXmstdout) # This case only exists to satisfy depend.m4. It is never actually # run, as this mode is specially recognized in the preamble. exit 1 ;; makedepend) "$@" || exit $? # Remove any Libtool call if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # X makedepend shift cleared=no eat=no for arg do case $cleared in no) set ""; shift cleared=yes ;; esac if test $eat = yes; then eat=no continue fi case "$arg" in -D*|-I*) set fnord "$@" "$arg"; shift ;; # Strip any option that makedepend may not understand. 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"$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi IFS=" " for arg do case "$arg" in -o) shift ;; $object) shift ;; "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") set fnord "$@" shift shift ;; *) set fnord "$@" "$arg" shift shift ;; esac done "$@" -E 2>/dev/null | sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" echo "$tab" >> "$depfile" sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" rm -f "$tmpdepfile" ;; msvcmsys) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; none) exec "$@" ;; *) 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: sxid-4.20130802/docs/0000775007246000724600000000000012200642604011027 500000000000000sxid-4.20130802/docs/sxid.conf.5.in0000664007246000724600000000716112175667216013363 00000000000000.Dd July 29, 2013 .Dt SXID 5 .Os .Sh NAME .Nm sxid.conf .Nd configuration settings for sXid .Sh DESCRIPTION .Pp This is the configuration file used by .Nm sXid to define it's parameters for execution. By default it is .Pa @TMPCONF@/sxid.conf but can be anything using the .Fl -config command line option for .Nm sXid . .Pp Options in this file are in the form of .Bd -literal OPTION = "VALUE" .Ed .Pp Note that the .Ar VALUE must be contained in double quotes. .Sh OPTIONS .Bl -tag -width Ds .It Va ALWAYS_NOTIFY If .Nm sXid does not find any changes it will not send an email unless you specify .Qq yes here. .It Va ALWAYS_ROTATE Usually .Nm sXid will only rotate the log files when there is a change from the last run. This is usually best, since all logs will record a change rather than just a run of the program. If you want to rotate the logs every time .Nm sXid is run, regardless of changes, specify .Qq yes here. .It Va EMAIL Where to send the email containing the output of changes every time .Nm sXid is run. Example: .Bd -literal EMAIL = "System Administrator " .Ed .It Va ENFORCE Normally .Nm sXid only flags items which are suid or sgid and are in a .Va FORBIDDEN directory. With this option set to .Qq yes .Nm sXid will remove the s[ug]id bit(s) on any files or directories it finds in forbidden directories and report any changes in the email. Note that directories listed in .Va FORBIDDEN are searched regardless of whether or not they are listed in .Va SEARCH . However, .Va EXCLUDE option still apply to directories that fall under them. .It Va EXCLUDE A space separated list of directories to exclude from the search. Note that if a .Va SEARCH path falls under an .Va EXCLUDE path that it will still be searched. This is useful for excluding whole directories and only specifying one. Example: .Bd -literal SEARCH = "/usr /usr/src/linux" EXCLUDE = "/usr/src" .Ed .It Va EXTRA_LIST File that contains a list of (each on it's own line) of other files that .Nm sXid should monitor. This is useful for files that aren't +s, but relate to system integrity (tcpd, inetd, apache...). Example: .Bd -literal EXTRA_LIST = "/etc/sxid.list" .Ed .It Va FORBIDDEN A space separated list of directories that are not supposed to contain any suid or sgid items. Items which are suid or sgid in these directories are flagged in the email separately from the other listings whether there are other changes or not. Example: .Bd -literal FORBIDDEN = "/tmp /home" .Ed .It Va IGNORE_DIRS Ignore entries for directories in these paths. This means that only files will be recorded. You can effectively ignore all directory entries by setting this to .Qq / . .It Va KEEP_LOGS This is a numerical value for how many log files to keep when rotating. .It Va LISTALL Forces a list of all entries to be included in th output. Implies .Va ALWAYS_NOTIFY . .It Va LOG_FILE The full path of where to store the log files. These will be rotated, each rotated log being suffixed with a digit. The directories must already exist. This is usually .Pa /var/log/sxid.log . Rotated logs would look like .Pa /var/log/sxid.log.n where .Dq n is the number in the rotation. The current log has no suffix. .It Va MAIL_PROG Mail program. This changes the default compiled in mailer for reports. You only need this if you have changed it's location and don't want to recompile .Nm sXid. .It Va SEARCH A space separated list of directories to search. .Nm sXid will use these as a starting point for it's searches. Example: .Bd -literal SEARCH = "/usr /bin /lib" .Ed .El .Sh AUTHOR .An Ben Collins Aq bcollins@debian.org .Sh "REPORTING BUGS" .An Timur Birsh Aq taem@linukz.org .Sh "SEE ALSO" .Xr sxid 1 sxid-4.20130802/docs/sxid.1.in0000664007246000724600000000526412200425142012410 00000000000000.Dd July 29, 2013 .Dt SXID 1 .Os .Sh NAME .Nm sxid .Nd check for changes in s[ug]id files and directories .Sh SYNOPSIS .Nm sxid .Bk .Op Fl c, -config Ar file .Op Fl n, -nomail .Op Fl k, -spotcheck .Op Fl l, -listall .Op Fl h, -help .Op Fl V, -version .Ek .Sh DESCRIPTION .Nm sXid checks for changes in suid and sgid files and directories based on its last check. Logs are stored by default in .Pa /var/log/sxid.log . The changes are then emailed to the address specified in the configuration file. The default location for the config file is .Pa @TMPCONF@/sxid.conf but this can be overridden with the .Fl -config option and specifying an alternate .Ar file . .Sh OPTIONS .Bl -tag -width Ds .It Fl c, -config Ar file Specifies an alternate configuration .Ar file . .It Fl n, -nomail Sends output to stdout instead of emailing, useful for spot checks. .It Fl k, -spotcheck Checks for changes by recursing the current working directory. Log files will not be rotated and no email sent. All output will go to stdout. .It Fl l, -listall Useful when doing .Fl -spotcheck or .Fl -nomail to list all files that are logged, regardless of changes. .It Fl h, -help Display a brief help message. .It Fl V, -version Print version and exit. .El .Sh OUTPUT .Pp The program outputs several different checks concerning the current status of the suid and sgid files and directories on the system on which it was run. This is a basic overview of the format. .Pp In the add remove section, new files are preceded by a .Dq + , old ones are preceded by a .Dq - . Note that removed does not mean gone from the filesystem, just that it is no longer sgid or suid. .Pp Most of it is pretty easy to understand. On the sections that show changes in the file's info (uid, gid, modes...) the format is old->new. So if the old owner was .Dq mail and it is now .Dq root then it shows it as mail->root. .Pp The list of files in the checks is in the following format: .Bd -literal /full/path *user.group MODE .Ed .Pp MODE is the 4 digit mode, as in 4755. .Pp In the changes section, if the line is preceded by an .Dq i then that item has changed inodes since the last check (regardless of any s[ug]id change), if there is an .Dq m then the SHA-256 checksum has changed. .Pp If a user or group entry is preceded by a .Dq * then it's execution bit is set (ie. *root.wheel is suid, root.*wheel is sgid, *root.*wheel is +s). .Pp On the forbidden directories, if .Va ENFORCE is enabled an .Dq r will precede forbidden items that were successfully \-s'd, and an .Do ! .Dc will show that it was unsuccesfully \-s'd (for what ever reason). .Sh AUTHOR .An Ben Collins Aq bcollins@debian.org .Sh "REPORTING BUGS" .An Timur Birsh Aq taem@linukz.org .Sh "SEE ALSO" .Xr sxid.conf 5 sxid-4.20130802/examples/0000775007246000724600000000000012200425330011710 500000000000000sxid-4.20130802/examples/sxid.conf0000664007246000724600000000307212200425330013450 00000000000000# Configuration file for sXid # Note that all directories must be absolute with no trailing /'s # Where to begin our file search SEARCH = "/" # Which subdirectories to exclude from searching EXCLUDE = "/cdrom /floppy /media /mnt /proc /sys" # Who to send reports to EMAIL = "root" # Always send reports, even when there are no changes? ALWAYS_NOTIFY = "no" # Where to keep interim logs. This will rotate 'x' number of # times based on KEEP_LOGS below LOG_FILE = "/var/log/sxid.log" # How many logs to keep KEEP_LOGS = "5" # Rotate the logs even when there are no changes? ALWAYS_ROTATE = "no" # Directories where +s is forbidden (these are searched # even if not explicitly in SEARCH), EXCLUDE rules apply FORBIDDEN = "/home /tmp" # Remove (-s) files found in forbidden directories? ENFORCE = "no" # This implies ALWAYS_NOTIFY. It will send a full list of # entries along with the changes LISTALL = "no" # Ignore entries for directories in these paths # (this means that only files will be recorded, you # can effectively ignore all directory entries by # setting this to "/"). The default is /home since # some systems have /home g+s. IGNORE_DIRS = "/home" # File that contains a list of (each on it's own line) # other files that sxid should monitor. This is useful # for files that aren't +s, but relate to system # integrity (tcpd, inetd, apache...). # EXTRA_LIST = "/etc/sxid.list" # Mail program. This changes the default compiled in # mailer for reports. You only need this if you have changed # it's location and don't want to recompile sxid. # MAIL_PROG = "/usr/bin/mail" sxid-4.20130802/examples/sxid.cron0000664007246000724600000000015512175667216013511 00000000000000# Sample crontab entry to run every day at 4am 0 4 * * * root test -x /usr/bin/sxid && /usr/bin/sxid sxid-4.20130802/src/0000775007246000724600000000000012200642604010666 500000000000000sxid-4.20130802/src/conffile.c0000664007246000724600000000742212200425330012537 00000000000000/* * sxid - suid, sgid file and directory checking * conffile.c - configuration file functions * * Copyright © 1999, 2000, 2002 Ben Collins * Copyright © 2009, 2013 Timur Birsh * * 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 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include #include /* strerror() */ #include #include #include "sxid.h" struct config_opt config_options; static char conf_default[] = CONF_FILE; char *confname = conf_default; static void get_value(char *value, char *key, int required) { FILE *conffile; char buffer[MAXBUF]; int line_no = 0; memset(buffer, 0, sizeof(buffer)); if ((conffile = fopen(confname, "r")) == NULL) { fprintf(stderr, "E: error opening config file, %s.\n", confname); exit(EXIT_FAILURE); } while ((fgets(buffer, sizeof(buffer), conffile)) != NULL) { line_no++; if (buffer[0] == '#') continue; if (strstr(buffer, key) == (char *)NULL) continue; if (strstr(buffer, "\"") == (char *)NULL) { fprintf(stderr, "E: in \'%s\', line %d.\n", confname, line_no); fclose(conffile); exit(EXIT_FAILURE); } strncpy(buffer, strstr(buffer, "\"") + 1, MAXBUF); buffer[MAXBUF - 1] = '\0'; int count = 0; while (count < sizeof(buffer)) { if ((isprint(buffer[count])) && buffer[count] != '"') value[count] = buffer[count]; else { value[count] = '\0'; break; } count++; } value[sizeof(buffer) - 1] = '\0'; fclose(conffile); return; } fclose(conffile); if (required) { fprintf(stderr, "E: required option \'%s\' not found in \'%s\'.\n", key, confname); exit(EXIT_FAILURE); } return; } void init_conf(void) { char value[MAXBUF]; /* Set defaults */ strcpy((char*) config_options.exclude_paths, ""); strcpy((char*) config_options.email, "root"); strcpy((char*) config_options.forbidden_paths, ""); strcpy((char*) config_options.ignore_dirs, ""); config_options.extra_list[0] = '\0'; strcpy((char*) config_options.mail_prog, MAIL_PROG); config_options.keep_logs = 3; if (config_options.flags & FLAG_SPOT) { if (getcwd(config_options.search_paths, MAXBUF) == NULL) { fprintf(stderr, "E: %s\n", strerror(errno)); exit(EXIT_FAILURE); } nomail = 1; } else get_value(config_options.search_paths, "SEARCH", 1); get_value(config_options.email, "EMAIL", 0); get_value(config_options.exclude_paths, "EXCLUDE", 0); get_value(config_options.ignore_dirs, "IGNORE_DIRS", 0); get_value(config_options.log_file, "LOG_FILE", 1); get_value(config_options.mail_prog, "MAIL_PROG", 0); get_value(config_options.extra_list, "EXTRA_LIST", 0); get_value(config_options.forbidden_paths, "FORBIDDEN", 0); get_value(value, "KEEP_LOGS", 0); config_options.keep_logs = atoi(value); get_value(value, "ALWAYS_NOTIFY", 0); if (isyes(value)) config_options.flags |= FLAG_ANOT; get_value(value, "ALWAYS_ROTATE", 0); if (isyes(value)) config_options.flags |= FLAG_AROT; get_value(value, "ENFORCE", 0); if (isyes(value)) config_options.flags |= FLAG_EFOR; get_value(value, "LISTALL", 0); if (isyes(value)) config_options.flags |= FLAG_LALL; return; } sxid-4.20130802/src/Makefile.in0000664007246000724600000004450212200642530012656 00000000000000# Makefile.in generated by automake 1.13.3 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2013 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@ # sxid - suid, sgid file and directory checking # Copyright © 1999, 2000, 2002 Ben Collins # Copyright © 2009, 2013 Timur Birsh # 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 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. 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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. * * 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include #include #include "sxid.h" #include "sha2.h" /* * Tells the search function to check all files, * not just +s ones (used with EXTRA_LIST) */ static int search_all = 0; static int excluded(char *dir) { char *tok, *e, *p; e = strdup(config_options.exclude_paths); tok = strtok_r(e, " ", &p); while (tok != NULL) { if (!strcmp(tok, dir)) { free(e); return 1; } tok = strtok_r(NULL, " ", &p); } free(e); return 0; } static __inline__ void check_entry(struct dirent *, char *); void search_path(char *dir) { DIR *dir_list; struct dirent *dir_entry; dir_list = opendir(dir); if (dir_list == NULL) return; for (dir_entry = readdir(dir_list); dir_entry != NULL; dir_entry = readdir(dir_list)) check_entry(dir_entry, dir); closedir(dir_list); return; } static __inline__ void check_entry(struct dirent *dir_entry, char *dir) { char buf[PATH_MAX]; struct stat dirent_stat; if (dir_entry == NULL || (strcmp(dir_entry->d_name, "..") && strcmp(dir_entry->d_name, "."))) { if (dir_entry != NULL) snprintf(buf, sizeof(buf), "%s%s%s", dir, strlen(dir) == 1 ? "" : "/", dir_entry->d_name); else snprintf(buf, sizeof(buf), "%s", dir); lstat(buf, &dirent_stat); if (dirent_stat.st_mode & S_IFDIR) { if ((dirent_stat.st_mode & (S_ISUID | S_ISGID)) && !check_paths(buf, config_options.ignore_dirs)) add_file_entry(buf, dirent_stat, NULL); if (!excluded(buf)) search_path(buf); } else { if (dirent_stat.st_mode & S_IFREG && (dirent_stat.st_mode & (S_ISUID | S_ISGID) || search_all)) { unsigned char digest[32 + 1]; int i; char digest_hex[(32 * 2) + 1], *p; if (sha2_file(buf, digest, 0)) { fprintf(stderr, "W: reading %s for " "SHA-256\n", buf); return; } for (i = 0, p = digest_hex; i < 32; ++i) p += sprintf(p, "%02x", digest[i]); add_file_entry(buf, dirent_stat, digest_hex); } } } return; } void start_search(void) { char *tok, *s; /* First the selected paths */ s = strdup(config_options.search_paths); for (tok = strtok(s, " "); tok != NULL; tok = strtok(NULL, " ")) if (!excluded(tok)) search_path(tok); free(s); /* Now the forbidden paths get explicit recursion */ s = strdup(config_options.forbidden_paths); for (tok = strtok(s, " "); tok != NULL; tok = strtok(NULL, " ")) if (!check_paths(tok, config_options.search_paths)) search_path(tok); free(s); /* Finally we check each line in extra_list */ if (config_options.extra_list[0] != '\0') { FILE *list; char b[MAXBUF]; memset(b, 0, sizeof(b)); if ((list = fopen(config_options.extra_list, "r")) == NULL) { fprintf(stderr, "E: error opening config file, %s.\n", config_options.extra_list); exit(EXIT_FAILURE); } else { struct stat dirent_stat; search_all = 1; while ((fgets(b, sizeof(b), list)) != NULL) { if (b[0] == '/') { /* make sure it's a full path */ if (b[strlen(b) - 1] == '\n') b[strlen(b) - 1] = '\0'; /* get rid of \n */ stat(b, &dirent_stat); if (dirent_stat.st_mode & S_IFREG) check_entry(NULL, b); else if (dirent_stat.st_mode & S_IFDIR) search_path(b); } } search_all = 0; fclose(list); } } return; } int check_paths(char *dir, char *paths) { char *tok, *e, *p; int matched = 0; e = strdup(paths); tok = strtok_r(e, " ", &p); while (tok != NULL && !matched) { if (!strncmp(tok, dir, strlen(tok) - 1)) matched = 1; tok = strtok_r(NULL, " ", &p); } free(e); return matched; } #ifndef HAVE_STRTOK_R /* Borrowed from string2.h in glibc 2.1.1, Copyrights apply */ char *strtok_r(char *s, char sep, char **nextp) { char *result; if (s == NULL) s = *nextp; while (*s == sep) ++s; if (*s == '\0') result = NULL; else { result = s; while (*s != '\0' && *s != sep) ++s; if (*s == '\0') *nextp = s; else { *s = '\0'; *nextp = s + 1; } } return result; } #endif sxid-4.20130802/src/notify.c0000664007246000724600000000653612175667216012315 00000000000000/* * sxid - suid, sgid file and directory checking * notify.c - notification functions * * Copyright © 1999, 2000, 2002 Ben Collins * Copyright © 2009, 2013 Timur Birsh * * 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 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include #include #include #include "sxid.h" char current_time[MAXBUF]; static void mail_header(FILE * output) { char hostname_val[MAXBUF]; fprintf(output, "sXid Vers : %s\n", sxid_version); fprintf(output, "Check run : %s\n", current_time); fprintf(output, "This host : %s\n", gethostname(hostname_val, sizeof(hostname_val)) ? "localhost" : hostname_val); if (config_options.flags & FLAG_SPOT) fprintf(output, "Spotcheck : %s\n", config_options.search_paths); else fprintf(output, "Searching : %s\n", config_options.search_paths); fprintf(output, "Excluding : %s\n", config_options.exclude_paths); fprintf(output, "Ignore Dirs: %s\n", config_options.ignore_dirs); if (config_options.extra_list[0] != '\0') fprintf(output, "Extra List : %s\n", config_options.extra_list); fprintf(output, "Forbidden : %s\n", config_options.forbidden_paths); if (config_options.flags & FLAG_EFOR) fprintf(output, " (enforcing removal of s[ug]id bits in " "forbidden paths)\n"); fprintf(output, "\n\n"); return; } void notify_email(void) { FILE *mail_pipe; char buffer[PATH_MAX + 64]; rewind(mail_file); #ifdef CL_SUBJ snprintf(buffer, sizeof(buffer), "%s -s \"%s\" \"%s\"", config_options.mail_prog, changed ? "List of changed s[ug]id files and folders" : notify_diff ? "No changes found (persistent problems)" : "No changes found (notice only)", config_options.email); #else snprintf(buffer, sizeof(buffer), "%s \"%s\"", config_options.mail_prog, config_options.email); #endif if (!nomail) mail_pipe = popen(buffer, "w"); else mail_pipe = stdout; if (mail_pipe == NULL) { fprintf(stderr, "E: could not open output to %s\n", nomail ? "stdout" : config_options.mail_prog); if (!nomail) fclose(mail_file); exit(EXIT_FAILURE); } #ifndef CL_SUBJ if (!nomail) fprintf(mail_pipe, "Subject: %s\n\n", changed ? "List of changed s[ug]id files and folders" : notify_diff ? "No changes found (persistent problems)" : "No changes found (notice only)"); #endif mail_header(mail_pipe); if (nomail && !changed) fprintf(mail_pipe, "%s\n\n", notify_diff ? "No changes found (persistent problems)" : "No changes found"); if (changed || notify_diff || (config_options.flags & FLAG_LALL)) while ((fgets(buffer, sizeof(buffer), mail_file)) != NULL) fputs(buffer, mail_pipe); if (!nomail) pclose(mail_pipe); return; } sxid-4.20130802/src/config.h.in0000664007246000724600000000174512200642530012636 00000000000000/* src/config.h.in. Generated from configure.ac by autoheader. */ /* Define if your mailer accepts the subject in the body of the mail */ #undef CL_SUBJ /* Define to the location of the default config file */ #undef CONF_FILE /* Define if you have getopt() */ #undef HAVE_GETOPT /* Define to 1 if you have the `strtok_r' function. */ #undef HAVE_STRTOK_R /* Define to the location of the default mail program */ #undef MAIL_PROG /* 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 /* Version number of package */ #undef VERSION sxid-4.20130802/src/getopt1.c0000664007246000724600000000540212174167554012356 00000000000000/* getopt_long and getopt_long_only entry points for GNU getopt. * Copyright (C) 1987, 88, 89, 90, 91, 92, 1993, 1994 * Free Software Foundation, Inc. * * This file is part of the GNU C Library. Its master source is NOT part of * the C library, however. The master source lives in /gd/gnu/lib. * * The GNU C Library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * The GNU C Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with the GNU C Library; see the file COPYING.LIB. If * not, write to the Free Software Foundation, Inc., 675 Mass Ave, * Cambridge, MA 02139, USA. */ #include "getopt.h" #if !defined (__STDC__) || !__STDC__ /* This is a separate conditional since some stdc systems * reject `defined (const)'. */ #ifndef const #define const #endif #endif #include /* Comment out all this code if we are using the GNU C Library, and are not * actually compiling the library itself. This code is part of the GNU C * Library, but also included in many other GNU distributions. Compiling * and linking in this code is a waste when using the GNU C library * (especially if it is a shared library). Rather than having every GNU * program understand `configure --with-gnu-libc' and omit the object files, * it is simpler to just do this in the source for each such file. */ #if defined (_LIBC) || !defined (__GNU_LIBRARY__) /* This needs to come after some library #include * to get __GNU_LIBRARY__ defined. */ #ifdef __GNU_LIBRARY__ #include #else char *getenv(); #endif #ifndef NULL #define NULL 0 #endif int getopt_long(argc, argv, options, long_options, opt_index) int argc; char *const *argv; const char *options; const struct option *long_options; int *opt_index; { return _getopt_internal(argc, argv, options, long_options, opt_index, 0); } /* Like getopt_long, but '-' as well as '--' can indicate a long option. * If an option that starts with '-' (not '--') doesn't match a long option, * but does match a short option, it is parsed as a short option * instead. */ int getopt_long_only(argc, argv, options, long_options, opt_index) int argc; char *const *argv; const char *options; const struct option *long_options; int *opt_index; { return _getopt_internal(argc, argv, options, long_options, opt_index, 1); } #endif /* _LIBC or not __GNU_LIBRARY__. */ sxid-4.20130802/src/sxid.h0000664007246000724600000000623412200425330011726 00000000000000/* * sxid - suid, sgid file and directory checking * sxid.h - defines and declerations for the main program * * Copyright © 1999, 2000, 2002 Ben Collins * Copyright © 2009, 2013 Timur Birsh * * 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 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef SXID_H #define SXID_H 1 #include "config.h" #include #include #include #include #include /* conffile.c */ void init_conf(void); #define isyes(x) (x[0] == 'y' || x[0] == 'Y' || x[0] == '1') /* notify.c */ void notify_email(void); /* search.c */ int check_paths(char *, char *); void start_search(void); /* logging.c */ void init_file_entries(void); void compare_output(void); void save_and_rotate(void); int add_file_entry(char *, struct stat, char *); #ifndef HAVE_STRTOK_R extern char *strtok_r(char *, char, char **); #endif #ifndef MAXBUF #define MAXBUF 2048 #endif /* Configuration info */ struct config_opt { char search_paths[MAXBUF + 1]; char exclude_paths[MAXBUF + 1]; char ignore_dirs[MAXBUF + 1]; char email[MAXBUF + 1]; char log_file[MAXBUF + 1]; char forbidden_paths[MAXBUF + 1]; char mail_prog[MAXBUF + 1]; char extra_list[MAXBUF + 1]; int keep_logs; unsigned int flags; }; /* Flags for config file */ #define FLAG_ANOT 0x0001 #define FLAG_AROT 0x0002 #define FLAG_EFOR 0x0004 #define FLAG_LALL 0x0010 #define FLAG_SPOT 0x0020 /* File entry information */ struct file_entry { struct file_entry *next; char *path; uid_t uid; gid_t gid; uid_t old_uid; gid_t old_gid; mode_t mode; mode_t old_mode; char *hash_sum; ino_t inode; u_int flags; }; /* Flags for file entries */ #define FE_OLD 0x0001 /* Old entry (default, get's unset if current) */ #define FE_NEW 0x0002 /* New entry */ #define FE_CHMODE 0x0004 /* Changed mode (r,w or x) */ #define FE_CHSUM 0x0010 /* Changed sha256sum (files only) */ #define FE_CHINODE 0x0020 /* Changed inode */ #define FE_CHUSER 0x0040 /* User id changed */ #define FE_CHGRP 0x0100 /* Group id changed */ #define FE_CHANGEDATTR 0x0174 /* Mask for anything changed */ extern char *confname; extern struct config_opt config_options; extern int changed; extern int notify_diff; extern int nomail; extern char current_time[MAXBUF]; extern struct file_entry *global_log; extern FILE *mail_file; extern char sxid_version[]; #ifndef PATH_MAX #define PATH_MAX 1024 #endif #ifndef NAME_MAX #define NAME_MAX 255 #endif #endif /* SXID_H */ sxid-4.20130802/src/logging.c0000664007246000724600000002716512200425330012406 00000000000000/* * sxid - suid, sgid file and directory checking * logging.c - logging functions * * Copyright © 1999, 2000, 2002 Ben Collins * Copyright © 2009, 2013 Timur Birsh * * 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 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include #include #include #include "sxid.h" struct file_entry *global_log; FILE *mail_file; static char *fill_space(int count) { char *p; int i; /* For longer lines, we try to format with some sort of tabs */ if (count == 0) count = 5; else if (count < 0) { count = 0 - count; for (i = 5; i < count; i += 5) ; count = i; } p = (char*)malloc(count + 1); if (p == NULL) { fprintf(stderr, "E: could not malloc() in fill_space()\n"); exit(EXIT_FAILURE); } memset(p, ' ', count); p[count] = '\0'; return p; } static char *format_ugid(uid_t uid, gid_t gid, mode_t mode) { struct passwd *pw = getpwuid(uid); struct group *gr = getgrgid(gid); char *ret_val, *temp; ret_val = temp = (char*)malloc((NAME_MAX * 2) + 2); if (ret_val == NULL) { fprintf(stderr, "E: could not malloc() in format_ugid()\n"); exit(EXIT_FAILURE); } if (mode & S_ISUID) temp++[0] = '*'; if (pw == NULL) temp += sprintf(temp, "%d", (int)uid); else temp += sprintf(temp, "%s", pw->pw_name); temp++[0] = ':'; if (mode & S_ISGID) temp++[0] = '*'; if (gr == NULL) temp += sprintf(temp, "%d", (int)gid); else temp += sprintf(temp, "%s", gr->gr_name); return ret_val; } static char *super_format_ugid(struct file_entry *p) { struct passwd *pw; struct group *gr; char *ret_val, *temp; ret_val = temp = (char*)malloc((NAME_MAX * 4) + 6); if (ret_val == NULL) { fprintf(stderr, "E: could not malloc() in super_format_ugid()\n"); exit(EXIT_FAILURE); } if (p->flags & FE_CHUSER) { pw = getpwuid(p->old_uid); if (pw == NULL) temp += sprintf(temp, "%d->", (int)p->old_uid); else temp += sprintf(temp, "%s->", pw->pw_name); } pw = getpwuid(p->uid); if (pw == NULL) temp += sprintf(temp, "%d", (int)p->uid); else temp += sprintf(temp, "%s", pw->pw_name); temp++[0] = ':'; if (p->flags & FE_CHGRP) { gr = getgrgid(p->old_gid); if (gr == NULL) temp += sprintf(temp, "%d->", (int)p->old_gid); else temp += sprintf(temp, "%s->", gr->gr_name); } gr = getgrgid(p->gid); if (gr == NULL) temp += sprintf(temp, "%d", (int)p->gid); else temp += sprintf(temp, "%s", gr->gr_name); return ret_val; } static void check_add_rem(FILE * mail_file) { struct file_entry *p = global_log; char init; fprintf(mail_file, "Checking for any additions or removals:\n"); while (p != NULL) { init = 0; if (p->flags & FE_NEW) init = '+'; else if (p->flags & FE_OLD) init = '-'; if (init) { char *perms, *space1, *space2; perms = format_ugid(p->uid, p->gid, p->mode); space1 = fill_space(20 - strlen(perms)); space2 = fill_space(32 - strlen(p->path) - ((p->mode & S_IFDIR) ? 1 : 0)); fprintf(mail_file, " %c %s%s%s%s%s%o\n", init, p->path, (p->mode & S_IFDIR) ? "/" : "", space2, perms, space1, (int)p->mode & 0x0FFF); free(space1); free(space2); free(perms); changed = 1; } p = p->next; } fprintf(mail_file, "\n\n"); return; } static void check_attr(FILE * mail_file) { struct file_entry *p = global_log; char ino, hash_sum; fprintf(mail_file, "Checking for changed attributes or sums/inodes:\n"); while (p != NULL) { if (p->flags & FE_CHANGEDATTR) { char old_pmode[7], *perms, *space1, *space2; if (p->mode & S_IFREG) ino = p->flags & FE_CHSUM ? 'm' : ' '; else ino = ' '; hash_sum = p->flags & FE_CHINODE ? 'i' : ' '; if (p->flags & FE_CHMODE) sprintf(old_pmode, "%o->", (int)p->old_mode & 0x0FFF); else old_pmode[0] = '\0'; perms = super_format_ugid(p); space1 = fill_space(20 - strlen(perms)); space2 = fill_space(32 - strlen(p->path) - ((p->mode & S_IFDIR) ? 1 : 0)); fprintf(mail_file, "%c%c %s%s%s%s%s%s%o\n", ino, hash_sum, p->path, (p->mode & S_IFDIR) ? "/" : "", space2, perms, space1, old_pmode, (int)p->mode & 0x0FFF); free(space1); free(space2); free(perms); changed = 1; } p = p->next; } fprintf(mail_file, "\n\n"); return; } static void check_u_g(FILE * mail_file) { struct file_entry *p = global_log; fprintf(mail_file, "Checking for no user/group matches:\n"); while (p != NULL) { struct passwd *pw = getpwuid(p->uid); struct group *gr = getgrgid(p->gid); if ((pw == NULL || gr == NULL) && !(p->flags & FE_OLD)) { char *perms, *space1, *space2; perms = format_ugid(p->uid, p->gid, p->mode); space1 = fill_space(20 - strlen(perms)); space2 = fill_space(32 - strlen(p->path) - ((p->mode & S_IFDIR) ? 1 : 0)); fprintf(mail_file, " %s%s%s%s%s%o\n", p->path, (p->mode & S_IFDIR) ? "/" : "", space2, perms, space1, (int)p->mode & 0x0FFF); free(space1); free(space2); free(perms); notify_diff = 1; } p = p->next; } fprintf(mail_file, "\n\n"); return; } static void check_forbidden(FILE * mail_file) { struct file_entry *p = global_log; char init; fprintf(mail_file, "Checking for forbidden s[ug]id items:\n"); while (p != NULL) { if (check_paths(p->path, config_options.forbidden_paths)) { char *perms, *space1, *space2; init = ' '; perms = format_ugid(p->uid, p->gid, p->mode); if (config_options.flags & FLAG_EFOR) { p->mode &= ~(S_ISUID | S_ISGID); if (chmod(p->path, p->mode)) init = '!'; else { p->flags &= ~FE_NEW; p->flags |= FE_OLD; init = 'r'; } } space1 = fill_space(20 - strlen(perms)); space2 = fill_space(32 - strlen(p->path) - ((p->mode & S_IFDIR) ? 1 : 0)); fprintf(mail_file, " %c %s%s%s%s%s%o\n", init, p->path, (p->mode & S_IFDIR) ? "/" : "", space2, perms, space1, (int)p->mode & 0x0FFF); free(space1); free(space2); free(perms); notify_diff = 1; } p = p->next; } fprintf(mail_file, "\n\n"); return; } static void do_list_all(FILE * mail_file) { struct file_entry *p = global_log; fprintf(mail_file, "Complete list of entries:\n"); while (p != NULL) { if (!p->flags & FE_OLD) { char *perms, *space1, *space2; perms = format_ugid(p->uid, p->gid, p->mode); space1 = fill_space(20 - strlen(perms)); space2 = fill_space(32 - strlen(p->path) - ((p->mode & S_IFDIR) ? 1 : 0)); fprintf(mail_file, " %s%s%s%s%s%o\n", p->path, (p->mode & S_IFDIR) ? "/" : "", space2, perms, space1, (int)p->mode & 0x0FFF); free(space1); free(space2); free(perms); } p = p->next; } fprintf(mail_file, "\n\n"); return; } /* Loads the entries from the last log file */ void init_file_entries(void) { FILE *log; char buf[MAXBUF], *s, *tok, search_tok[2] = { 0x1e, '\0' }; global_log = NULL; log = fopen(config_options.log_file, "r"); if (log == NULL) return; while ((fgets(buf, sizeof(buf), log)) != NULL) { struct file_entry *p; buf[strlen(buf) - 1] = '\0'; s = buf; tok = strtok(s, search_tok); if ((config_options.flags & FLAG_SPOT) && strncasecmp(config_options.search_paths, s, strlen(config_options.search_paths))) continue; p = (struct file_entry*)malloc(sizeof(struct file_entry)); if (p == NULL) { fprintf(stderr, "E: could not malloc() in " "init_file_entries()\n"); fclose(log); exit(EXIT_FAILURE); } p->next = global_log; global_log = p; p->path = strdup(tok); p->uid = (uid_t)atoi(strtok(NULL, search_tok)); p->gid = (gid_t)atoi(strtok(NULL, search_tok)); p->mode = (mode_t)atoi(strtok(NULL, search_tok)); p->inode = (ino_t)atoi(strtok(NULL, search_tok)); p->old_uid = -1; p->old_gid = -1; p->old_mode = -1; tok = strtok(NULL, search_tok); if (tok != NULL) p->hash_sum = strdup(tok); else p->hash_sum = NULL; p->flags = 0; p->flags |= FE_OLD; } fclose(log); return; } /* Initializes comparison functions */ void compare_output(void) { char *tmp_dir, *tmp_file; tmp_dir = getenv("TMPDIR"); if (tmp_dir == NULL) tmp_dir = "/tmp"; tmp_file = malloc(strlen(tmp_dir) + strlen("/sxid.XXXXXX") + 1); if (tmp_file == NULL) { fprintf(stderr, "E: could not malloc() in compare_output().\n"); exit(EXIT_FAILURE); } strcpy(tmp_file, tmp_dir); strcat(tmp_file, "/sxid.XXXXXX"); mail_file = fdopen(mkstemp(tmp_file), "w+b"); unlink(tmp_file); free(tmp_file); if (mail_file == NULL) { fprintf(stderr, "E: could not open temp file in compare_output().\n"); exit(EXIT_FAILURE); } check_add_rem(mail_file); check_attr(mail_file); check_u_g(mail_file); check_forbidden(mail_file); if (config_options.flags & FLAG_LALL) do_list_all(mail_file); return; } /* Lookup entry in global struct by path */ struct file_entry *get_fe_bypath(char *path) { struct file_entry *p; p = global_log; while (p != NULL) { if (!strcmp(p->path, path)) return p; p = p->next; } p = (struct file_entry*)malloc(sizeof(struct file_entry)); if (p == NULL) { fprintf(stderr, "E: could malloc() in get_fe_bypath()\n"); exit(EXIT_FAILURE); } p->next = global_log; p->path = NULL; global_log = p; return p; } int add_file_entry(char *path, struct stat dirent_stat, char *hash_sum) { struct file_entry *p; p = get_fe_bypath(path); if (p->path == NULL) { p->path = strdup(path); p->uid = dirent_stat.st_uid; p->gid = dirent_stat.st_gid; p->mode = dirent_stat.st_mode; p->inode = dirent_stat.st_ino; p->old_uid = -1; p->old_gid = -1; p->old_mode = -1; if (hash_sum != NULL) p->hash_sum = strdup(hash_sum); else p->hash_sum = NULL; p->flags = 0; p->flags |= FE_NEW; } else { p->flags = 0; if (p->uid != dirent_stat.st_uid) { p->old_uid = p->uid; p->uid = dirent_stat.st_uid; p->flags |= FE_CHUSER; } if (p->gid != dirent_stat.st_gid) { p->old_gid = p->gid; p->gid = dirent_stat.st_gid; p->flags |= FE_CHGRP; } if (p->mode != dirent_stat.st_mode) { p->old_mode = p->mode; p->mode = dirent_stat.st_mode; p->flags |= FE_CHMODE; } if (p->inode != dirent_stat.st_ino) { p->inode = dirent_stat.st_ino; p->flags |= FE_CHINODE; } if (hash_sum != NULL) { if (strcmp(hash_sum, p->hash_sum)) { strcpy(p->hash_sum, hash_sum); p->flags |= FE_CHSUM; } } else p->hash_sum = NULL; } return 0; } void save_and_rotate(void) { struct file_entry *p = global_log; FILE *new_log; int i; for (i = config_options.keep_logs - 1; i >= 0; i--) { char o[PATH_MAX], n[PATH_MAX]; sprintf(o, "%s%c%d", config_options.log_file, i == 0 ? '\0' : '.', i - 1); sprintf(n, "%s.%d", config_options.log_file, i); rename(o, n); } new_log = fopen(config_options.log_file, "w"); if (new_log == NULL) { fprintf(stdout, "W: Could not open new log file %s, not saving " "information\n", config_options.log_file); return; } while (p != NULL) { if (!(p->flags & FE_OLD)) fprintf(new_log, "%s%c%d%c%d%c%d%c%d%c%s\n", p->path, 0x1e, (int)p->uid, 0x1e, (int)p->gid, 0x1e, (int)p->mode, 0x1e, (int)p->inode, 0x1e, p->hash_sum != NULL ? p->hash_sum : ""); p = p->next; } fclose(new_log); return; } sxid-4.20130802/src/sha2.c0000664007246000724600000005164512200425142011616 00000000000000/* * FIPS-180-2 compliant SHA-256 implementation * * Copyright (C) 2006-2013, Brainspark B.V. * * This file is part of PolarSSL (http://www.polarssl.org) * Lead Maintainer: Paul Bakker * * All rights reserved. * * 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 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* * The SHA-256 Secure Hash Standard was published by NIST in 2002. * * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf */ #define POLARSSL_SHA2_C #define POLARSSL_FS_IO #if defined(POLARSSL_SHA2_C) #include "sha2.h" #if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST) #include #endif #if !defined(POLARSSL_SHA2_ALT) /* * 32-bit integer manipulation macros (big endian) */ #ifndef GET_UINT32_BE #define GET_UINT32_BE(n,b,i) \ { \ (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ | ( (uint32_t) (b)[(i) + 1] << 16 ) \ | ( (uint32_t) (b)[(i) + 2] << 8 ) \ | ( (uint32_t) (b)[(i) + 3] ); \ } #endif #ifndef PUT_UINT32_BE #define PUT_UINT32_BE(n,b,i) \ { \ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ (b)[(i) + 3] = (unsigned char) ( (n) ); \ } #endif /* * SHA-256 context setup */ void sha2_starts( sha2_context *ctx, int is224 ) { ctx->total[0] = 0; ctx->total[1] = 0; if( is224 == 0 ) { /* SHA-256 */ ctx->state[0] = 0x6A09E667; ctx->state[1] = 0xBB67AE85; ctx->state[2] = 0x3C6EF372; ctx->state[3] = 0xA54FF53A; ctx->state[4] = 0x510E527F; ctx->state[5] = 0x9B05688C; ctx->state[6] = 0x1F83D9AB; ctx->state[7] = 0x5BE0CD19; } else { /* SHA-224 */ ctx->state[0] = 0xC1059ED8; ctx->state[1] = 0x367CD507; ctx->state[2] = 0x3070DD17; ctx->state[3] = 0xF70E5939; ctx->state[4] = 0xFFC00B31; ctx->state[5] = 0x68581511; ctx->state[6] = 0x64F98FA7; ctx->state[7] = 0xBEFA4FA4; } ctx->is224 = is224; } void sha2_process( sha2_context *ctx, const unsigned char data[64] ) { uint32_t temp1, temp2, W[64]; uint32_t A, B, C, D, E, F, G, H; GET_UINT32_BE( W[ 0], data, 0 ); GET_UINT32_BE( W[ 1], data, 4 ); GET_UINT32_BE( W[ 2], data, 8 ); GET_UINT32_BE( W[ 3], data, 12 ); GET_UINT32_BE( W[ 4], data, 16 ); GET_UINT32_BE( W[ 5], data, 20 ); GET_UINT32_BE( W[ 6], data, 24 ); GET_UINT32_BE( W[ 7], data, 28 ); GET_UINT32_BE( W[ 8], data, 32 ); GET_UINT32_BE( W[ 9], data, 36 ); GET_UINT32_BE( W[10], data, 40 ); GET_UINT32_BE( W[11], data, 44 ); GET_UINT32_BE( W[12], data, 48 ); GET_UINT32_BE( W[13], data, 52 ); GET_UINT32_BE( W[14], data, 56 ); GET_UINT32_BE( W[15], data, 60 ); #define SHR(x,n) ((x & 0xFFFFFFFF) >> n) #define ROTR(x,n) (SHR(x,n) | (x << (32 - n))) #define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3)) #define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10)) #define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22)) #define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25)) #define F0(x,y,z) ((x & y) | (z & (x | y))) #define F1(x,y,z) (z ^ (x & (y ^ z))) #define R(t) \ ( \ W[t] = S1(W[t - 2]) + W[t - 7] + \ S0(W[t - 15]) + W[t - 16] \ ) #define P(a,b,c,d,e,f,g,h,x,K) \ { \ temp1 = h + S3(e) + F1(e,f,g) + K + x; \ temp2 = S2(a) + F0(a,b,c); \ d += temp1; h = temp1 + temp2; \ } A = ctx->state[0]; B = ctx->state[1]; C = ctx->state[2]; D = ctx->state[3]; E = ctx->state[4]; F = ctx->state[5]; G = ctx->state[6]; H = ctx->state[7]; P( A, B, C, D, E, F, G, H, W[ 0], 0x428A2F98 ); P( H, A, B, C, D, E, F, G, W[ 1], 0x71374491 ); P( G, H, A, B, C, D, E, F, W[ 2], 0xB5C0FBCF ); P( F, G, H, A, B, C, D, E, W[ 3], 0xE9B5DBA5 ); P( E, F, G, H, A, B, C, D, W[ 4], 0x3956C25B ); P( D, E, F, G, H, A, B, C, W[ 5], 0x59F111F1 ); P( C, D, E, F, G, H, A, B, W[ 6], 0x923F82A4 ); P( B, C, D, E, F, G, H, A, W[ 7], 0xAB1C5ED5 ); P( A, B, C, D, E, F, G, H, W[ 8], 0xD807AA98 ); P( H, A, B, C, D, E, F, G, W[ 9], 0x12835B01 ); P( G, H, A, B, C, D, E, F, W[10], 0x243185BE ); P( F, G, H, A, B, C, D, E, W[11], 0x550C7DC3 ); P( E, F, G, H, A, B, C, D, W[12], 0x72BE5D74 ); P( D, E, F, G, H, A, B, C, W[13], 0x80DEB1FE ); P( C, D, E, F, G, H, A, B, W[14], 0x9BDC06A7 ); P( B, C, D, E, F, G, H, A, W[15], 0xC19BF174 ); P( A, B, C, D, E, F, G, H, R(16), 0xE49B69C1 ); P( H, A, B, C, D, E, F, G, R(17), 0xEFBE4786 ); P( G, H, A, B, C, D, E, F, R(18), 0x0FC19DC6 ); P( F, G, H, A, B, C, D, E, R(19), 0x240CA1CC ); P( E, F, G, H, A, B, C, D, R(20), 0x2DE92C6F ); P( D, E, F, G, H, A, B, C, R(21), 0x4A7484AA ); P( C, D, E, F, G, H, A, B, R(22), 0x5CB0A9DC ); P( B, C, D, E, F, G, H, A, R(23), 0x76F988DA ); P( A, B, C, D, E, F, G, H, R(24), 0x983E5152 ); P( H, A, B, C, D, E, F, G, R(25), 0xA831C66D ); P( G, H, A, B, C, D, E, F, R(26), 0xB00327C8 ); P( F, G, H, A, B, C, D, E, R(27), 0xBF597FC7 ); P( E, F, G, H, A, B, C, D, R(28), 0xC6E00BF3 ); P( D, E, F, G, H, A, B, C, R(29), 0xD5A79147 ); P( C, D, E, F, G, H, A, B, R(30), 0x06CA6351 ); P( B, C, D, E, F, G, H, A, R(31), 0x14292967 ); P( A, B, C, D, E, F, G, H, R(32), 0x27B70A85 ); P( H, A, B, C, D, E, F, G, R(33), 0x2E1B2138 ); P( G, H, A, B, C, D, E, F, R(34), 0x4D2C6DFC ); P( F, G, H, A, B, C, D, E, R(35), 0x53380D13 ); P( E, F, G, H, A, B, C, D, R(36), 0x650A7354 ); P( D, E, F, G, H, A, B, C, R(37), 0x766A0ABB ); P( C, D, E, F, G, H, A, B, R(38), 0x81C2C92E ); P( B, C, D, E, F, G, H, A, R(39), 0x92722C85 ); P( A, B, C, D, E, F, G, H, R(40), 0xA2BFE8A1 ); P( H, A, B, C, D, E, F, G, R(41), 0xA81A664B ); P( G, H, A, B, C, D, E, F, R(42), 0xC24B8B70 ); P( F, G, H, A, B, C, D, E, R(43), 0xC76C51A3 ); P( E, F, G, H, A, B, C, D, R(44), 0xD192E819 ); P( D, E, F, G, H, A, B, C, R(45), 0xD6990624 ); P( C, D, E, F, G, H, A, B, R(46), 0xF40E3585 ); P( B, C, D, E, F, G, H, A, R(47), 0x106AA070 ); P( A, B, C, D, E, F, G, H, R(48), 0x19A4C116 ); P( H, A, B, C, D, E, F, G, R(49), 0x1E376C08 ); P( G, H, A, B, C, D, E, F, R(50), 0x2748774C ); P( F, G, H, A, B, C, D, E, R(51), 0x34B0BCB5 ); P( E, F, G, H, A, B, C, D, R(52), 0x391C0CB3 ); P( D, E, F, G, H, A, B, C, R(53), 0x4ED8AA4A ); P( C, D, E, F, G, H, A, B, R(54), 0x5B9CCA4F ); P( B, C, D, E, F, G, H, A, R(55), 0x682E6FF3 ); P( A, B, C, D, E, F, G, H, R(56), 0x748F82EE ); P( H, A, B, C, D, E, F, G, R(57), 0x78A5636F ); P( G, H, A, B, C, D, E, F, R(58), 0x84C87814 ); P( F, G, H, A, B, C, D, E, R(59), 0x8CC70208 ); P( E, F, G, H, A, B, C, D, R(60), 0x90BEFFFA ); P( D, E, F, G, H, A, B, C, R(61), 0xA4506CEB ); P( C, D, E, F, G, H, A, B, R(62), 0xBEF9A3F7 ); P( B, C, D, E, F, G, H, A, R(63), 0xC67178F2 ); ctx->state[0] += A; ctx->state[1] += B; ctx->state[2] += C; ctx->state[3] += D; ctx->state[4] += E; ctx->state[5] += F; ctx->state[6] += G; ctx->state[7] += H; } /* * SHA-256 process buffer */ void sha2_update( sha2_context *ctx, const unsigned char *input, size_t ilen ) { size_t fill; uint32_t left; if( ilen <= 0 ) return; left = ctx->total[0] & 0x3F; fill = 64 - left; ctx->total[0] += (uint32_t) ilen; ctx->total[0] &= 0xFFFFFFFF; if( ctx->total[0] < (uint32_t) ilen ) ctx->total[1]++; if( left && ilen >= fill ) { memcpy( (void *) (ctx->buffer + left), input, fill ); sha2_process( ctx, ctx->buffer ); input += fill; ilen -= fill; left = 0; } while( ilen >= 64 ) { sha2_process( ctx, input ); input += 64; ilen -= 64; } if( ilen > 0 ) memcpy( (void *) (ctx->buffer + left), input, ilen ); } static const unsigned char sha2_padding[64] = { 0x80, 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 }; /* * SHA-256 final digest */ void sha2_finish( sha2_context *ctx, unsigned char output[32] ) { uint32_t last, padn; uint32_t high, low; unsigned char msglen[8]; high = ( ctx->total[0] >> 29 ) | ( ctx->total[1] << 3 ); low = ( ctx->total[0] << 3 ); PUT_UINT32_BE( high, msglen, 0 ); PUT_UINT32_BE( low, msglen, 4 ); last = ctx->total[0] & 0x3F; padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); sha2_update( ctx, sha2_padding, padn ); sha2_update( ctx, msglen, 8 ); PUT_UINT32_BE( ctx->state[0], output, 0 ); PUT_UINT32_BE( ctx->state[1], output, 4 ); PUT_UINT32_BE( ctx->state[2], output, 8 ); PUT_UINT32_BE( ctx->state[3], output, 12 ); PUT_UINT32_BE( ctx->state[4], output, 16 ); PUT_UINT32_BE( ctx->state[5], output, 20 ); PUT_UINT32_BE( ctx->state[6], output, 24 ); if( ctx->is224 == 0 ) PUT_UINT32_BE( ctx->state[7], output, 28 ); } #endif /* !POLARSSL_SHA2_ALT */ /* * output = SHA-256( input buffer ) */ void sha2( const unsigned char *input, size_t ilen, unsigned char output[32], int is224 ) { sha2_context ctx; sha2_starts( &ctx, is224 ); sha2_update( &ctx, input, ilen ); sha2_finish( &ctx, output ); memset( &ctx, 0, sizeof( sha2_context ) ); } #if defined(POLARSSL_FS_IO) /* * output = SHA-256( file contents ) */ int sha2_file( const char *path, unsigned char output[32], int is224 ) { FILE *f; size_t n; sha2_context ctx; unsigned char buf[1024]; if( ( f = fopen( path, "rb" ) ) == NULL ) return( POLARSSL_ERR_SHA2_FILE_IO_ERROR ); sha2_starts( &ctx, is224 ); while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) sha2_update( &ctx, buf, n ); sha2_finish( &ctx, output ); memset( &ctx, 0, sizeof( sha2_context ) ); if( ferror( f ) != 0 ) { fclose( f ); return( POLARSSL_ERR_SHA2_FILE_IO_ERROR ); } fclose( f ); return( 0 ); } #endif /* POLARSSL_FS_IO */ /* * SHA-256 HMAC context setup */ void sha2_hmac_starts( sha2_context *ctx, const unsigned char *key, size_t keylen, int is224 ) { size_t i; unsigned char sum[32]; if( keylen > 64 ) { sha2( key, keylen, sum, is224 ); keylen = ( is224 ) ? 28 : 32; key = sum; } memset( ctx->ipad, 0x36, 64 ); memset( ctx->opad, 0x5C, 64 ); for( i = 0; i < keylen; i++ ) { ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] ); ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] ); } sha2_starts( ctx, is224 ); sha2_update( ctx, ctx->ipad, 64 ); memset( sum, 0, sizeof( sum ) ); } /* * SHA-256 HMAC process buffer */ void sha2_hmac_update( sha2_context *ctx, const unsigned char *input, size_t ilen ) { sha2_update( ctx, input, ilen ); } /* * SHA-256 HMAC final digest */ void sha2_hmac_finish( sha2_context *ctx, unsigned char output[32] ) { int is224, hlen; unsigned char tmpbuf[32]; is224 = ctx->is224; hlen = ( is224 == 0 ) ? 32 : 28; sha2_finish( ctx, tmpbuf ); sha2_starts( ctx, is224 ); sha2_update( ctx, ctx->opad, 64 ); sha2_update( ctx, tmpbuf, hlen ); sha2_finish( ctx, output ); memset( tmpbuf, 0, sizeof( tmpbuf ) ); } /* * SHA-256 HMAC context reset */ void sha2_hmac_reset( sha2_context *ctx ) { sha2_starts( ctx, ctx->is224 ); sha2_update( ctx, ctx->ipad, 64 ); } /* * output = HMAC-SHA-256( hmac key, input buffer ) */ void sha2_hmac( const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char output[32], int is224 ) { sha2_context ctx; sha2_hmac_starts( &ctx, key, keylen, is224 ); sha2_hmac_update( &ctx, input, ilen ); sha2_hmac_finish( &ctx, output ); memset( &ctx, 0, sizeof( sha2_context ) ); } #if defined(POLARSSL_SELF_TEST) /* * FIPS-180-2 test vectors */ static unsigned char sha2_test_buf[3][57] = { { "abc" }, { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" }, { "" } }; static const int sha2_test_buflen[3] = { 3, 56, 1000 }; static const unsigned char sha2_test_sum[6][32] = { /* * SHA-224 test vectors */ { 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22, 0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3, 0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7, 0xE3, 0x6C, 0x9D, 0xA7 }, { 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC, 0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50, 0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19, 0x52, 0x52, 0x25, 0x25 }, { 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8, 0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B, 0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE, 0x4E, 0xE7, 0xAD, 0x67 }, /* * SHA-256 test vectors */ { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA, 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23, 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C, 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD }, { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8, 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39, 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67, 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 }, { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92, 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67, 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E, 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 } }; /* * RFC 4231 test vectors */ static unsigned char sha2_hmac_test_key[7][26] = { { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B" "\x0B\x0B\x0B\x0B" }, { "Jefe" }, { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA" "\xAA\xAA\xAA\xAA" }, { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10" "\x11\x12\x13\x14\x15\x16\x17\x18\x19" }, { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C" "\x0C\x0C\x0C\x0C" }, { "" }, /* 0xAA 131 times */ { "" } }; static const int sha2_hmac_test_keylen[7] = { 20, 4, 20, 25, 20, 131, 131 }; static unsigned char sha2_hmac_test_buf[7][153] = { { "Hi There" }, { "what do ya want for nothing?" }, { "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" }, { "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" }, { "Test With Truncation" }, { "Test Using Larger Than Block-Size Key - Hash Key First" }, { "This is a test using a larger than block-size key " "and a larger than block-size data. The key needs to " "be hashed before being used by the HMAC algorithm." } }; static const int sha2_hmac_test_buflen[7] = { 8, 28, 50, 50, 20, 54, 152 }; static const unsigned char sha2_hmac_test_sum[14][32] = { /* * HMAC-SHA-224 test vectors */ { 0x89, 0x6F, 0xB1, 0x12, 0x8A, 0xBB, 0xDF, 0x19, 0x68, 0x32, 0x10, 0x7C, 0xD4, 0x9D, 0xF3, 0x3F, 0x47, 0xB4, 0xB1, 0x16, 0x99, 0x12, 0xBA, 0x4F, 0x53, 0x68, 0x4B, 0x22 }, { 0xA3, 0x0E, 0x01, 0x09, 0x8B, 0xC6, 0xDB, 0xBF, 0x45, 0x69, 0x0F, 0x3A, 0x7E, 0x9E, 0x6D, 0x0F, 0x8B, 0xBE, 0xA2, 0xA3, 0x9E, 0x61, 0x48, 0x00, 0x8F, 0xD0, 0x5E, 0x44 }, { 0x7F, 0xB3, 0xCB, 0x35, 0x88, 0xC6, 0xC1, 0xF6, 0xFF, 0xA9, 0x69, 0x4D, 0x7D, 0x6A, 0xD2, 0x64, 0x93, 0x65, 0xB0, 0xC1, 0xF6, 0x5D, 0x69, 0xD1, 0xEC, 0x83, 0x33, 0xEA }, { 0x6C, 0x11, 0x50, 0x68, 0x74, 0x01, 0x3C, 0xAC, 0x6A, 0x2A, 0xBC, 0x1B, 0xB3, 0x82, 0x62, 0x7C, 0xEC, 0x6A, 0x90, 0xD8, 0x6E, 0xFC, 0x01, 0x2D, 0xE7, 0xAF, 0xEC, 0x5A }, { 0x0E, 0x2A, 0xEA, 0x68, 0xA9, 0x0C, 0x8D, 0x37, 0xC9, 0x88, 0xBC, 0xDB, 0x9F, 0xCA, 0x6F, 0xA8 }, { 0x95, 0xE9, 0xA0, 0xDB, 0x96, 0x20, 0x95, 0xAD, 0xAE, 0xBE, 0x9B, 0x2D, 0x6F, 0x0D, 0xBC, 0xE2, 0xD4, 0x99, 0xF1, 0x12, 0xF2, 0xD2, 0xB7, 0x27, 0x3F, 0xA6, 0x87, 0x0E }, { 0x3A, 0x85, 0x41, 0x66, 0xAC, 0x5D, 0x9F, 0x02, 0x3F, 0x54, 0xD5, 0x17, 0xD0, 0xB3, 0x9D, 0xBD, 0x94, 0x67, 0x70, 0xDB, 0x9C, 0x2B, 0x95, 0xC9, 0xF6, 0xF5, 0x65, 0xD1 }, /* * HMAC-SHA-256 test vectors */ { 0xB0, 0x34, 0x4C, 0x61, 0xD8, 0xDB, 0x38, 0x53, 0x5C, 0xA8, 0xAF, 0xCE, 0xAF, 0x0B, 0xF1, 0x2B, 0x88, 0x1D, 0xC2, 0x00, 0xC9, 0x83, 0x3D, 0xA7, 0x26, 0xE9, 0x37, 0x6C, 0x2E, 0x32, 0xCF, 0xF7 }, { 0x5B, 0xDC, 0xC1, 0x46, 0xBF, 0x60, 0x75, 0x4E, 0x6A, 0x04, 0x24, 0x26, 0x08, 0x95, 0x75, 0xC7, 0x5A, 0x00, 0x3F, 0x08, 0x9D, 0x27, 0x39, 0x83, 0x9D, 0xEC, 0x58, 0xB9, 0x64, 0xEC, 0x38, 0x43 }, { 0x77, 0x3E, 0xA9, 0x1E, 0x36, 0x80, 0x0E, 0x46, 0x85, 0x4D, 0xB8, 0xEB, 0xD0, 0x91, 0x81, 0xA7, 0x29, 0x59, 0x09, 0x8B, 0x3E, 0xF8, 0xC1, 0x22, 0xD9, 0x63, 0x55, 0x14, 0xCE, 0xD5, 0x65, 0xFE }, { 0x82, 0x55, 0x8A, 0x38, 0x9A, 0x44, 0x3C, 0x0E, 0xA4, 0xCC, 0x81, 0x98, 0x99, 0xF2, 0x08, 0x3A, 0x85, 0xF0, 0xFA, 0xA3, 0xE5, 0x78, 0xF8, 0x07, 0x7A, 0x2E, 0x3F, 0xF4, 0x67, 0x29, 0x66, 0x5B }, { 0xA3, 0xB6, 0x16, 0x74, 0x73, 0x10, 0x0E, 0xE0, 0x6E, 0x0C, 0x79, 0x6C, 0x29, 0x55, 0x55, 0x2B }, { 0x60, 0xE4, 0x31, 0x59, 0x1E, 0xE0, 0xB6, 0x7F, 0x0D, 0x8A, 0x26, 0xAA, 0xCB, 0xF5, 0xB7, 0x7F, 0x8E, 0x0B, 0xC6, 0x21, 0x37, 0x28, 0xC5, 0x14, 0x05, 0x46, 0x04, 0x0F, 0x0E, 0xE3, 0x7F, 0x54 }, { 0x9B, 0x09, 0xFF, 0xA7, 0x1B, 0x94, 0x2F, 0xCB, 0x27, 0x63, 0x5F, 0xBC, 0xD5, 0xB0, 0xE9, 0x44, 0xBF, 0xDC, 0x63, 0x64, 0x4F, 0x07, 0x13, 0x93, 0x8A, 0x7F, 0x51, 0x53, 0x5C, 0x3A, 0x35, 0xE2 } }; /* * Checkup routine */ int sha2_self_test( int verbose ) { int i, j, k, buflen; unsigned char buf[1024]; unsigned char sha2sum[32]; sha2_context ctx; for( i = 0; i < 6; i++ ) { j = i % 3; k = i < 3; if( verbose != 0 ) printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 ); sha2_starts( &ctx, k ); if( j == 2 ) { memset( buf, 'a', buflen = 1000 ); for( j = 0; j < 1000; j++ ) sha2_update( &ctx, buf, buflen ); } else sha2_update( &ctx, sha2_test_buf[j], sha2_test_buflen[j] ); sha2_finish( &ctx, sha2sum ); if( memcmp( sha2sum, sha2_test_sum[i], 32 - k * 4 ) != 0 ) { if( verbose != 0 ) printf( "failed\n" ); return( 1 ); } if( verbose != 0 ) printf( "passed\n" ); } if( verbose != 0 ) printf( "\n" ); for( i = 0; i < 14; i++ ) { j = i % 7; k = i < 7; if( verbose != 0 ) printf( " HMAC-SHA-%d test #%d: ", 256 - k * 32, j + 1 ); if( j == 5 || j == 6 ) { memset( buf, '\xAA', buflen = 131 ); sha2_hmac_starts( &ctx, buf, buflen, k ); } else sha2_hmac_starts( &ctx, sha2_hmac_test_key[j], sha2_hmac_test_keylen[j], k ); sha2_hmac_update( &ctx, sha2_hmac_test_buf[j], sha2_hmac_test_buflen[j] ); sha2_hmac_finish( &ctx, sha2sum ); buflen = ( j == 4 ) ? 16 : 32 - k * 4; if( memcmp( sha2sum, sha2_hmac_test_sum[i], buflen ) != 0 ) { if( verbose != 0 ) printf( "failed\n" ); return( 1 ); } if( verbose != 0 ) printf( "passed\n" ); } if( verbose != 0 ) printf( "\n" ); return( 0 ); } #endif #endif sxid-4.20130802/src/getopt.h0000664007246000724600000001132712174167554012305 00000000000000/* Declarations for getopt. * Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc. * * This file is part of the GNU C Library. Its master source is NOT part of * the C library, however. The master source lives in /gd/gnu/lib. * * The GNU C Library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * The GNU C Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with the GNU C Library; see the file COPYING.LIB. If * not, write to the Free Software Foundation, Inc., 675 Mass Ave, * Cambridge, MA 02139, USA. */ #ifndef _GETOPT_H #define _GETOPT_H 1 #ifdef __cplusplus extern "C" { #endif /* For communication from `getopt' to the caller. * When `getopt' finds an option that takes an argument, * the argument value is returned here. * Also, when `ordering' is RETURN_IN_ORDER, * each non-option ARGV-element is returned here. */ extern char *optarg; /* Index in ARGV of the next element to be scanned. * This is used for communication to and from the caller * and for communication between successive calls to `getopt'. * * On entry to `getopt', zero means this is the first call; initialize. * * When `getopt' returns EOF, this is the index of the first of the * non-option elements that the caller should itself scan. * * Otherwise, `optind' communicates from one call to the next * how much of ARGV has been scanned so far. */ extern int optind; /* Callers store zero here to inhibit the error message `getopt' prints * for unrecognized options. */ extern int opterr; /* Set to an option character which was unrecognized. */ extern int optopt; /* Describe the long-named options requested by the application. * The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector * of `struct option' terminated by an element containing a name which is * zero. * * The field `has_arg' is: * no_argument (or 0) if the option does not take an argument, * required_argument (or 1) if the option requires an argument, * optional_argument (or 2) if the option takes an optional argument. * * If the field `flag' is not NULL, it points to a variable that is set * to the value given in the field `val' when the option is found, but * left unchanged if the option is not found. * * To have a long-named option do something other than set an `int' to * a compiled-in constant, such as set a value from `optarg', set the * option's `flag' field to zero and its `val' field to a nonzero * value (the equivalent single-letter option character, if there is * one). For long options that have a zero `flag' field, `getopt' * returns the contents of the `val' field. */ struct option { #if defined (__STDC__) && __STDC__ const char *name; #else char *name; #endif /* has_arg can't be an enum because some compilers complain about * type mismatches in all the code that assumes it is an int. */ int has_arg; int *flag; int val; }; /* Names for the values of the `has_arg' field of `struct option'. */ #define no_argument 0 #define required_argument 1 #define optional_argument 2 #if defined (__STDC__) && __STDC__ #ifdef __GNU_LIBRARY__ /* Many other libraries have conflicting prototypes for getopt, with * differences in the consts, in stdlib.h. To avoid compilation * errors, only prototype getopt for the GNU C library. */ extern int getopt(int argc, char *const *argv, const char *shortopts); #else /* not __GNU_LIBRARY__ */ extern int getopt(); #endif /* __GNU_LIBRARY__ */ extern int getopt_long(int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind); extern int getopt_long_only(int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind); /* Internal only. Users should not call this directly. */ extern int _getopt_internal(int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind, int long_only); #else /* not __STDC__ */ extern int getopt(); extern int getopt_long(); extern int getopt_long_only(); extern int _getopt_internal(); #endif /* __STDC__ */ #ifdef __cplusplus } #endif #endif /* _GETOPT_H */ sxid-4.20130802/src/sha2.h0000664007246000724600000001203412200425142011610 00000000000000/** * \file sha2.h * * \brief SHA-224 and SHA-256 cryptographic hash function * * Copyright (C) 2006-2013, Brainspark B.V. * * This file is part of PolarSSL (http://www.polarssl.org) * Lead Maintainer: Paul Bakker * * All rights reserved. * * 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 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef POLARSSL_SHA2_H #define POLARSSL_SHA2_H #include #ifdef _MSC_VER #include typedef UINT32 uint32_t; #else #include #endif #define POLARSSL_ERR_SHA2_FILE_IO_ERROR -0x0078 /**< Read/write error in file. */ #if !defined(POLARSSL_SHA2_ALT) // Regular implementation // /** * \brief SHA-256 context structure */ typedef struct { uint32_t total[2]; /*!< number of bytes processed */ uint32_t state[8]; /*!< intermediate digest state */ unsigned char buffer[64]; /*!< data block being processed */ unsigned char ipad[64]; /*!< HMAC: inner padding */ unsigned char opad[64]; /*!< HMAC: outer padding */ int is224; /*!< 0 => SHA-256, else SHA-224 */ } sha2_context; #ifdef __cplusplus extern "C" { #endif /** * \brief SHA-256 context setup * * \param ctx context to be initialized * \param is224 0 = use SHA256, 1 = use SHA224 */ void sha2_starts( sha2_context *ctx, int is224 ); /** * \brief SHA-256 process buffer * * \param ctx SHA-256 context * \param input buffer holding the data * \param ilen length of the input data */ void sha2_update( sha2_context *ctx, const unsigned char *input, size_t ilen ); /** * \brief SHA-256 final digest * * \param ctx SHA-256 context * \param output SHA-224/256 checksum result */ void sha2_finish( sha2_context *ctx, unsigned char output[32] ); /* Internal use */ void sha2_process( sha2_context *ctx, const unsigned char data[64] ); #ifdef __cplusplus } #endif #else /* POLARSSL_SHA2_ALT */ #include "sha2_alt.h" #endif /* POLARSSL_SHA2_ALT */ #ifdef __cplusplus extern "C" { #endif /** * \brief Output = SHA-256( input buffer ) * * \param input buffer holding the data * \param ilen length of the input data * \param output SHA-224/256 checksum result * \param is224 0 = use SHA256, 1 = use SHA224 */ void sha2( const unsigned char *input, size_t ilen, unsigned char output[32], int is224 ); /** * \brief Output = SHA-256( file contents ) * * \param path input file name * \param output SHA-224/256 checksum result * \param is224 0 = use SHA256, 1 = use SHA224 * * \return 0 if successful, or POLARSSL_ERR_SHA2_FILE_IO_ERROR */ int sha2_file( const char *path, unsigned char output[32], int is224 ); /** * \brief SHA-256 HMAC context setup * * \param ctx HMAC context to be initialized * \param key HMAC secret key * \param keylen length of the HMAC key * \param is224 0 = use SHA256, 1 = use SHA224 */ void sha2_hmac_starts( sha2_context *ctx, const unsigned char *key, size_t keylen, int is224 ); /** * \brief SHA-256 HMAC process buffer * * \param ctx HMAC context * \param input buffer holding the data * \param ilen length of the input data */ void sha2_hmac_update( sha2_context *ctx, const unsigned char *input, size_t ilen ); /** * \brief SHA-256 HMAC final digest * * \param ctx HMAC context * \param output SHA-224/256 HMAC checksum result */ void sha2_hmac_finish( sha2_context *ctx, unsigned char output[32] ); /** * \brief SHA-256 HMAC context reset * * \param ctx HMAC context to be reset */ void sha2_hmac_reset( sha2_context *ctx ); /** * \brief Output = HMAC-SHA-256( hmac key, input buffer ) * * \param key HMAC secret key * \param keylen length of the HMAC key * \param input buffer holding the data * \param ilen length of the input data * \param output HMAC-SHA-224/256 result * \param is224 0 = use SHA256, 1 = use SHA224 */ void sha2_hmac( const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char output[32], int is224 ); /** * \brief Checkup routine * * \return 0 if successful, or 1 if the test failed */ int sha2_self_test( int verbose ); #ifdef __cplusplus } #endif #endif /* sha2.h */ sxid-4.20130802/src/sxid.c0000664007246000724600000000737712200425330011732 00000000000000/* * sxid - suid, sgid file and directory checking * sxid.c - main program routines * * Copyright © 1999, 2000, 2002 Ben Collins * Copyright © 2009, 2013 Timur Birsh * * 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 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include /* access() */ #include /* strerror() */ #include #include #include #include "sxid.h" struct option cmd_options[] = { { "nomail", no_argument, 0, 'n' }, { "help", no_argument, 0, 'h' }, { "version", no_argument, 0, 'V' }, { "listall", no_argument, 0, 'l' }, { "spotcheck", no_argument, 0, 'k' }, { "config", required_argument, 0, 'c' }, { NULL, 0, 0, 0 } }; char sxid_version[] = VERSION; int changed = 0; int notify_diff = 0; int nomail = 0; static void sxid_usage() { fprintf(stdout, "Usage: sxid [options]\n"); fprintf(stdout, "-h, --help This help output\n"); fprintf(stdout, "-V, --version Print version and exit\n"); fprintf(stdout, "-k, --spotcheck Run this using spotcheck rules " "(see man page)\n"); fprintf(stdout, "-n, --nomail Send output to stdout instead " "of sending email\n"); fprintf(stdout, "-l, --listall List all found s[ug]id files " "regardless of changes\n"); fprintf(stdout, "-c, --config Specifies alternative config " "file\n"); } static void print_version() { fprintf(stdout, "sXid %s\n", sxid_version); fprintf(stdout, "Copyright (C) 1999, 2000, 2002 Ben Collins\n"); fprintf(stdout, "Copyright (C) 2009, 2013 Timur Birsh\n"); fprintf(stdout, "This is free software; see the source for copying " "conditions. There is NO\n" "warranty; not even for MERCHANTABILITY or FITNESS FOR A " "PARTICULAR PURPOSE.\n"); exit(EXIT_SUCCESS); } int main(int argc, char *argv[]) { FILE *conffile; int opt; time_t time_mark; umask(077); config_options.flags = 0x00; while ((opt = getopt_long_only(argc, argv, "nhVlkc:", cmd_options, NULL)) != EOF) { switch (opt) { case 'c': confname = optarg; break; case 'n': nomail = 1; break; case 'l': config_options.flags |= FLAG_LALL; break; case 'k': config_options.flags |= FLAG_SPOT; break; case 'V': print_version(); break; case 'h': sxid_usage(); exit(EXIT_SUCCESS); default: sxid_usage(); exit(EXIT_FAILURE); } } argc -= optind; argv += optind; if (access(confname, R_OK) != 0) { fprintf(stderr, "E: %s: %s\n", strerror(errno), confname); exit(EXIT_FAILURE); } /* Ok, let's time stamp */ time_mark = time(NULL); if (!strftime(current_time, sizeof(current_time), "%c", localtime(&time_mark))) current_time[sizeof(current_time) - 1] = '\0'; init_conf(); init_file_entries(); start_search(); compare_output(); if ((changed || (config_options.flags & FLAG_AROT)) && !(config_options.flags & FLAG_SPOT)) save_and_rotate(); if (changed || notify_diff || nomail || (config_options.flags & (FLAG_ANOT | FLAG_LALL))) notify_email(); fclose(mail_file); return 0; } sxid-4.20130802/src/Makefile.am0000664007246000724600000000172012200425142012636 00000000000000# sxid - suid, sgid file and directory checking # Copyright © 1999, 2000, 2002 Ben Collins # Copyright © 2009, 2013 Timur Birsh # 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 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, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. bin_PROGRAMS = sxid sxid_SOURCES = conffile.c logging.c notify.c search.c sha2.c sxid.c sha2.h sxid.h sxid-4.20130802/src/getopt.c0000664007246000724600000004771412174167554012311 00000000000000/* Getopt for GNU. * NOTE: getopt is now part of the C library, so if you don't know what * "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu * before changing it! * * Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94 * Free Software Foundation, Inc. * * This file is part of the GNU C Library. Its master source is NOT part of * the C library, however. The master source lives in /gd/gnu/lib. * * The GNU C Library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * The GNU C Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with the GNU C Library; see the file COPYING.LIB. If * not, write to the Free Software Foundation, Inc., 675 Mass Ave, * Cambridge, MA 02139, USA. */ /* This tells Alpha OSF/1 not to define a getopt prototype in . * Ditto for AIX 3.2 and . */ #ifndef _NO_PROTO #define _NO_PROTO #endif #if !defined (__STDC__) || !__STDC__ /* This is a separate conditional since some stdc systems * reject `defined (const)'. */ #ifndef const #define const #endif #endif #include #include /* Comment out all this code if we are using the GNU C Library, and are not * actually compiling the library itself. This code is part of the GNU C * Library, but also included in many other GNU distributions. Compiling * and linking in this code is a waste when using the GNU C library * (especially if it is a shared library). Rather than having every GNU * program understand `configure --with-gnu-libc' and omit the object files, * it is simpler to just do this in the source for each such file. */ #if defined (_LIBC) || !defined (__GNU_LIBRARY__) /* This needs to come after some library #include * to get __GNU_LIBRARY__ defined. */ #ifdef __GNU_LIBRARY__ /* Don't include stdlib.h for non-GNU C libraries because some of them * contain conflicting prototypes for getopt. */ #include #endif /* GNU C library. */ /* This version of `getopt' appears to the caller like standard Unix `getopt' * but it behaves differently for the user, since it allows the user * to intersperse the options with the other arguments. * * As `getopt' works, it permutes the elements of ARGV so that, * when it is done, all the options precede everything else. Thus * all application programs are extended to handle flexible argument order. * * Setting the environment variable POSIXLY_CORRECT disables permutation. * Then the behavior is completely standard. * * GNU application programs can use a third alternative mode in which * they can distinguish the relative order of options and other arguments. */ #include "getopt.h" /* For communication from `getopt' to the caller. * When `getopt' finds an option that takes an argument, * the argument value is returned here. * Also, when `ordering' is RETURN_IN_ORDER, * each non-option ARGV-element is returned here. */ char *optarg = NULL; /* Index in ARGV of the next element to be scanned. * This is used for communication to and from the caller * and for communication between successive calls to `getopt'. * * On entry to `getopt', zero means this is the first call; initialize. * * When `getopt' returns EOF, this is the index of the first of the * non-option elements that the caller should itself scan. * * Otherwise, `optind' communicates from one call to the next * how much of ARGV has been scanned so far. */ /* XXX 1003.2 says this must be 1 before any call. */ int optind = 0; /* The next char to be scanned in the option-element * in which the last option character we returned was found. * This allows us to pick up the scan where we left off. * * If this is zero, or a null string, it means resume the scan * by advancing to the next ARGV-element. */ static char *nextchar; /* Callers store zero here to inhibit the error message * for unrecognized options. */ int opterr = 1; /* Set to an option character which was unrecognized. * This must be initialized on some systems to avoid linking in the * system's own getopt implementation. */ int optopt = '?'; /* Describe how to deal with options that follow non-option ARGV-elements. * * If the caller did not specify anything, * the default is REQUIRE_ORDER if the environment variable * POSIXLY_CORRECT is defined, PERMUTE otherwise. * * REQUIRE_ORDER means don't recognize them as options; * stop option processing when the first non-option is seen. * This is what Unix does. * This mode of operation is selected by either setting the environment * variable POSIXLY_CORRECT, or using `+' as the first character * of the list of option characters. * * PERMUTE is the default. We permute the contents of ARGV as we scan, * so that eventually all the non-options are at the end. This allows options * to be given in any order, even with programs that were not written to * expect this. * * RETURN_IN_ORDER is an option available to programs that were written * to expect options and other ARGV-elements in any order and that care about * the ordering of the two. We describe each non-option ARGV-element * as if it were the argument of an option with character code 1. * Using `-' as the first character of the list of option characters * selects this mode of operation. * * The special argument `--' forces an end of option-scanning regardless * of the value of `ordering'. In the case of RETURN_IN_ORDER, only * `--' can cause `getopt' to return EOF with `optind' != ARGC. */ static enum { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER } ordering; /* Value of POSIXLY_CORRECT environment variable. */ static char *posixly_correct; #ifdef __GNU_LIBRARY__ /* We want to avoid inclusion of string.h with non-GNU libraries * because there are many ways it can cause trouble. * On some systems, it contains special magic macros that don't work * in GCC. */ #include #define my_index strchr #else /* Avoid depending on library functions or files * whose names are inconsistent. */ char *getenv(); static char * my_index(str, chr) const char *str; int chr; { while (*str) { if (*str == chr) return (char*)str; str++; } return 0; } /* If using GCC, we can safely declare strlen this way. * If not using GCC, it is ok not to declare it. */ #ifdef __GNUC__ /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. * That was relevant to code that was here before. */ #if !defined (__STDC__) || !__STDC__ /* gcc with -traditional declares the built-in strlen to return int, * and has done so at least since version 2.4.5. -- rms. */ extern int strlen(const char *); #endif /* not __STDC__ */ #endif /* __GNUC__ */ #endif /* not __GNU_LIBRARY__ */ /* Handle permutation of arguments. */ /* Describe the part of ARGV that contains non-options that have * been skipped. `first_nonopt' is the index in ARGV of the first of them; * `last_nonopt' is the index after the last of them. */ static int first_nonopt; static int last_nonopt; /* Exchange two adjacent subsequences of ARGV. * One subsequence is elements [first_nonopt,last_nonopt) * which contains all the non-options that have been skipped so far. * The other is elements [last_nonopt,optind), which contains all * the options processed since those non-options were skipped. * * `first_nonopt' and `last_nonopt' are relocated so that they describe * the new indices of the non-options in ARGV after they are moved. */ static void exchange(argv) char **argv; { int bottom = first_nonopt; int middle = last_nonopt; int top = optind; char *tem; /* Exchange the shorter segment with the far end of the longer segment. * That puts the shorter segment into the right place. * It leaves the longer segment in the right place overall, * but it consists of two parts that need to be swapped next. */ while (top > middle && middle > bottom) { if (top - middle > middle - bottom) { /* Bottom segment is the short one. */ int len = middle - bottom; register int i; /* Swap it with the top part of the top segment. */ for (i = 0; i < len; i++) { tem = argv[bottom + i]; argv[bottom + i] = argv[top - (middle - bottom) + i]; argv[top - (middle - bottom) + i] = tem; } /* Exclude the moved bottom segment from further swapping. */ top -= len; } else { /* Top segment is the short one. */ int len = top - middle; register int i; /* Swap it with the bottom part of the bottom segment. */ for (i = 0; i < len; i++) { tem = argv[bottom + i]; argv[bottom + i] = argv[middle + i]; argv[middle + i] = tem; } /* Exclude the moved top segment from further swapping. */ bottom += len; } } /* Update records for the slots the non-options now occupy. */ first_nonopt += (optind - last_nonopt); last_nonopt = optind; } /* Initialize the internal data when the first call is made. */ static const char * _getopt_initialize(optstring) const char *optstring; { /* Start processing options with ARGV-element 1 (since ARGV-element 0 * is the program name); the sequence of previously skipped * non-option ARGV-elements is empty. */ first_nonopt = last_nonopt = optind = 1; nextchar = NULL; posixly_correct = getenv("POSIXLY_CORRECT"); /* Determine how to handle the ordering of options and nonoptions. */ if (optstring[0] == '-') { ordering = RETURN_IN_ORDER; ++optstring; } else if (optstring[0] == '+') { ordering = REQUIRE_ORDER; ++optstring; } else if (posixly_correct != NULL) ordering = REQUIRE_ORDER; else ordering = PERMUTE; return optstring; } /* Scan elements of ARGV (whose length is ARGC) for option characters * given in OPTSTRING. * * If an element of ARGV starts with '-', and is not exactly "-" or "--", * then it is an option element. The characters of this element * (aside from the initial '-') are option characters. If `getopt' * is called repeatedly, it returns successively each of the option characters * from each of the option elements. * * If `getopt' finds another option character, it returns that character, * updating `optind' and `nextchar' so that the next call to `getopt' can * resume the scan with the following option character or ARGV-element. * * If there are no more option characters, `getopt' returns `EOF'. * Then `optind' is the index in ARGV of the first ARGV-element * that is not an option. (The ARGV-elements have been permuted * so that those that are not options now come last.) * * OPTSTRING is a string containing the legitimate option characters. * If an option character is seen that is not listed in OPTSTRING, * return '?' after printing an error message. If you set `opterr' to * zero, the error message is suppressed but we still return '?'. * * If a char in OPTSTRING is followed by a colon, that means it wants an arg, * so the following text in the same ARGV-element, or the text of the following * ARGV-element, is returned in `optarg'. Two colons mean an option that * wants an optional arg; if there is text in the current ARGV-element, * it is returned in `optarg', otherwise `optarg' is set to zero. * * If OPTSTRING starts with `-' or `+', it requests different methods of * handling the non-option ARGV-elements. * See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. * * Long-named options begin with `--' instead of `-'. * Their names may be abbreviated as long as the abbreviation is unique * or is an exact match for some defined option. If they have an * argument, it follows the option name in the same ARGV-element, separated * from the option name by a `=', or else the in next ARGV-element. * When `getopt' finds a long-named option, it returns 0 if that option's * `flag' field is nonzero, the value of the option's `val' field * if the `flag' field is zero. * * The elements of ARGV aren't really const, because we permute them. * But we pretend they're const in the prototype to be compatible * with other systems. * * LONGOPTS is a vector of `struct option' terminated by an * element containing a name which is zero. * * LONGIND returns the index in LONGOPT of the long-named option found. * It is only valid when a long-named option has been found by the most * recent call. * * If LONG_ONLY is nonzero, '-' as well as '--' can introduce * long-named options. */ int _getopt_internal(argc, argv, optstring, longopts, longind, long_only) int argc; char *const *argv; const char *optstring; const struct option *longopts; int *longind; int long_only; { optarg = NULL; if (optind == 0) optstring = _getopt_initialize(optstring); if (nextchar == NULL || *nextchar == '\0') { /* Advance to the next ARGV-element. */ if (ordering == PERMUTE) { /* If we have just processed some options following some non-options, * exchange them so that the options come first. */ if (first_nonopt != last_nonopt && last_nonopt != optind) exchange((char**)argv); else if (last_nonopt != optind) first_nonopt = optind; /* Skip any additional non-options * and extend the range of non-options previously skipped. */ while (optind < argc && (argv[optind][0] != '-' || argv[optind][1] == '\0')) optind++; last_nonopt = optind; } /* The special ARGV-element `--' means premature end of options. * Skip it like a null option, * then exchange with previous non-options as if it were an option, * then skip everything else like a non-option. */ if (optind != argc && !strcmp(argv[optind], "--")) { optind++; if (first_nonopt != last_nonopt && last_nonopt != optind) exchange((char**)argv); else if (first_nonopt == last_nonopt) first_nonopt = optind; last_nonopt = argc; optind = argc; } /* If we have done all the ARGV-elements, stop the scan * and back over any non-options that we skipped and permuted. */ if (optind == argc) { /* Set the next-arg-index to point at the non-options * that we previously skipped, so the caller will digest them. */ if (first_nonopt != last_nonopt) optind = first_nonopt; return EOF; } /* If we have come to a non-option and did not permute it, * either stop the scan or describe it to the caller and pass it by. */ if ((argv[optind][0] != '-' || argv[optind][1] == '\0')) { if (ordering == REQUIRE_ORDER) return EOF; optarg = argv[optind++]; return 1; } /* We have found another option-ARGV-element. * Skip the initial punctuation. */ nextchar = (argv[optind] + 1 + (longopts != NULL && argv[optind][1] == '-')); } /* Decode the current option-ARGV-element. */ /* Check whether the ARGV-element is a long option. * * If long_only and the ARGV-element has the form "-f", where f is * a valid short option, don't consider it an abbreviated form of * a long option that starts with f. Otherwise there would be no * way to give the -f short option. * * On the other hand, if there's a long option "fubar" and * the ARGV-element is "-fu", do consider that an abbreviation of * the long option, just like "--fu", and not "-f" with arg "u". * * This distinction seems to be the most useful approach. */ if (longopts != NULL && (argv[optind][1] == '-' || (long_only && (argv[optind][2] || !my_index(optstring, argv[optind][1]))))) { char *nameend; const struct option *p; const struct option *pfound = NULL; int exact = 0; int ambig = 0; int indfound = 0; int option_index; for (nameend = nextchar; *nameend && *nameend != '='; nameend++) /* Do nothing. */; /* Test all long options for either exact match * or abbreviated matches. */ for (p = longopts, option_index = 0; p->name; p++, option_index++) if (!strncmp(p->name, nextchar, nameend - nextchar)) { if (nameend - nextchar == strlen(p->name)) { /* Exact match found. */ pfound = p; indfound = option_index; exact = 1; break; } else if (pfound == NULL) { /* First nonexact match found. */ pfound = p; indfound = option_index; } else /* Second or later nonexact match found. */ ambig = 1; } if (ambig && !exact) { if (opterr) fprintf(stderr, "%s: option `%s' is ambiguous\n", argv[0], argv[optind]); nextchar += strlen(nextchar); optind++; return '?'; } if (pfound != NULL) { option_index = indfound; optind++; if (*nameend) { /* Don't test has_arg with >, because some C compilers don't * allow it to be used on enums. */ if (pfound->has_arg) optarg = nameend + 1; else { if (opterr) { if (argv[optind - 1][1] == '-') /* --option */ fprintf(stderr, "%s: option `--%s' doesn't allow an argument\n", argv[0], pfound->name); else /* +option or -option */ fprintf(stderr, "%s: option `%c%s' doesn't allow an argument\n", argv[0], argv[optind - 1][0], pfound->name); } nextchar += strlen(nextchar); return '?'; } } else if (pfound->has_arg == 1) { if (optind < argc) optarg = argv[optind++]; else { if (opterr) fprintf(stderr, "%s: option `%s' requires an argument\n", argv[0], argv[optind - 1]); nextchar += strlen(nextchar); return optstring[0] == ':' ? ':' : '?'; } } nextchar += strlen(nextchar); if (longind != NULL) *longind = option_index; if (pfound->flag) { *(pfound->flag) = pfound->val; return 0; } return pfound->val; } /* Can't find it as a long option. 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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, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 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