pax_global_header00006660000000000000000000000064127305762070014523gustar00rootroot0000000000000052 comment=3005a0ed4d3e7ccf976a65fb8befef5bad4c484c ttylog-0.29/000077500000000000000000000000001273057620700127775ustar00rootroot00000000000000ttylog-0.29/CMakeLists.txt000066400000000000000000000026621273057620700155450ustar00rootroot00000000000000# ########## Project setup ########## PROJECT(ttylog) CMAKE_MINIMUM_REQUIRED(VERSION 2.6) SET(TTYLOG_VERSION_MAJOR "0") SET(TTYLOG_VERSION_MINOR "29") SET(TTYLOG_VERSION_PATCH "0") SET(TTYLOG_VERSION ${TTYLOG_VERSION_MAJOR}.${TTYLOG_VERSION_MINOR}.${TTYLOG_VERSION_PATCH}) configure_file( "${PROJECT_SOURCE_DIR}/config.h.in" "${PROJECT_BINARY_DIR}/config.h" ) # ######### General setup ########## INCLUDE_DIRECTORIES( ${CMAKE_SOURCE_DIR} ${PROJECT_BINARY_DIR} ) # ######### Build defaults ########## SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -O2") # ########## ttylog executable ########## # Sources: SET(ttylog_executable_SRCS ttylog.c ) # Headers: SET(ttylog_executable_HDRS ) # ######### Package creation ######### SET(CPACK_PACKAGE_VERSION_MAJOR "${TTYLOG_VERSION_MAJOR}") SET(CPACK_PACKAGE_VERSION_MINOR "${TTYLOG_VERSION_MINOR}") SET(CPACK_PACKAGE_VERSION_PATCH "${TTYLOG_VERSION_PATCH}") SET(CPACK_PACKAGE_VERSION "${TTYLOG_VERSION}") SET(CPACK_SOURCE_GENERATOR "TBZ2") SET(CPACK_SOURCE_PACKAGE_FILE_NAME "${CMAKE_PROJECT_NAME}-${CPACK_PACKAGE_VERSION}") SET(CPACK_SOURCE_IGNORE_FILES "/build/;/.git/;/.svn/;") INCLUDE(CPack) # actual target: ADD_EXECUTABLE(ttylog ${ttylog_executable_SRCS}) # link against librt: if(UNIX AND NOT APPLE) target_link_libraries(ttylog rt) endif() # add install targets: INSTALL(TARGETS ttylog DESTINATION sbin) # add install man page: INSTALL(FILES ttylog.8 DESTINATION share/man/man8) ttylog-0.29/COPYRIGHT000066400000000000000000000021001273057620700142630ustar00rootroot00000000000000 ttylog - TTY logger Copyright (C) 1999-2002 Tibor Koleszar Copyright (C) 2008-2016 Robert James Clay Copyright (C) 2016 Alexander (MrMontag) Fust Copyright (C) 2016 Logan Rosen 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 th 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. Tibor Koleszar H-7400 Kaposvar, Somssich Pal str. 4. Robert James Clay ttylog-0.29/ChangeLog000066400000000000000000000164471273057620700145650ustar00rootroot000000000000002016-6-16 Robert James Clay 0.29 * COPYRIGHT, ttylog.c: Add copyright information for Logan Rosen. * ttylog.c: Add an extra line feed at the end of the '-v' option printout. * ttylog.c: Implement portability for setting the baud rate. Resolves ticket https://sourceforge.net/p/ttylog/patches/2/. Thanks for the patch goes to Mats Erik Andersson . * LICENSE: Rename the 'LICENCE' file as 'LICENSE'. 2016-6-14 Logan Rosen * CMakeLists.txt: Properly link against librt. 2016-6-04 Robert James Clay * README.md: Minor edits to content of file. 2016-6-03 Robert James Clay 0.28 * Release as ttylog version v0.28. 2016-6-02 Robert James Clay * README.md: Add Usage, Code, Support, and other information. * ttylog.8: Add information to the SYNOPSIS section. 2016-6-01 Robert James Clay * ttylog.c: ttylog.8: Rewrite description of the '-t|--timeout' option. * ttylog.c: Remove the '-r|--raw' command line option, at least for now. * ttylog.8: Add SYNOPSIS and edit the DESCRIPTION & OPTIONS sections. 2016-5-30 Robert James Clay * ttylog.c: Include the changes for ttylog.c from the patch associated with Debian bug # 739733, thus closing the bug. The changes were intended to: - Fix extra newlines being added to output. - Fix dropping of lines at high baud rates. - Fix dropping of first input line. Thanks to Doug Brunner . * ttylog.c: Update copyright infomation presented by '--version' option. * COPYRIGHT: Update copyright years for jame@rocasa.us and add information for alexander.fust.info@gmail.com. 2016-5-25 Alexander (MrMontag) Fust 0.27 * CMakeList.txt: Finalize and activate the CPack directives 2016-5-13 Robert James Clay * ttylog.c: Remove extraneous character at line 130. * config.h.in: Remove extraneous character at line 3. * ttylog.c: Update the copyright lines for the current authors. 2016-4-17 Alexander (MrMontag) Fust * ttylog.c: bug-fixes and improvements for the new '-t' & '-r' options. * CMakeList.txt: CPack directives deactivated by commenting them out. 2016-4-09 Alexander (MrMontag) Fust * CMakeList.txt, config.h.in, ttylog.c: Improve the CMake configuration. 2016-4-05 Alexander (MrMontag) Fust * ttylog.c, ttylog.8: New 'raw' option added, as '-r' or '--raw'. * ttylog.c, ttylog.8: Change the '-t' long option from '--time Seconds to run' to '--timeout Time to run'. 2016-4-04 Alexander (MrMontag) Fust * ttylog.8, ttylog.c: New 'time' option added, as '-t' or '--time'. * CMakeList.txt: Change the setting of C_FLAGS and add CPACK related directives. 2015-6-03 Robert James Clay 0.26 * ttylog.c: Correct truncating of modem_device string, implementing ttylog patch #3 (thanks to Daniel Flinkmann). Closes Debian Bug #731086. * ttylog.c: Rewrite the "-h|--help" option code, including the expansion of the "Usage:" line. * ttylog.c: Rewrite the '-v|--version' option code, including the addition of the License and Copyright information. * ChangeLog: Correct bad date entry for v0.1.b-3. 2014-7-29 Robert James Clay * ttylog.8: Rewrite the '-f --flush' option description in ttylog.8. 2013-6-19 Robert James Clay * README.md: Add initial version of the README.md file. 2013-2-14 Robert James Clay 0.25 * ttylog.c: Corrections to the code adding a NULL to modem_device variable. * CMakeLists.txt: Change CMAKE_C_FLAGS default settings to be Debug build settings by adding them to CMAKE_C_FLAGS_DEBUG instead. 2013-2-14 Robert James Clay 0.24 * ttylog.c: Cleanup of tabs and whitespace. * ttylog.c: Ensure that the modem_device variable is NULL terminated before being used. 2013-2-14 Robert James Clay 0.23 * Correct how CMAKE_C_FLAGS is getting set in CMakeLists.txt. 2013-2-13 Robert James Clay 0.22 * Change the ttylog build system to use CMake. * Add an INSTALL file with information about the CMake based build system. Include the legacy Makefile as a separate section in the file. 2013-1-29 Robert James Clay 0.21 * Do not explicitly define the CC variable in the Makefile. * Add the CPPFLAGS variable to object build line in the Makefile. * Change CFLAGS to LDFLAGS in the executable build line in Makefile. 2013-1-29 Robert James Clay 0.20.0 * Change the version numbering scheme to 'm.n.p'; where "m" is the major version number, "n" is the minor version number, and "p" is a patch version number. Set this version as v0.20.0, derived by mapping the old versions to new minor versions starting from 0.1.0 and counting bug fixes as separate minor versions. For details see ttylog bug # 5, which this closes. 2013-1-21 Robert James Clay 0.1.f * Use standard variable CFLAGS instead of C_ARGS in the Makefile and change how it is initially set there. * Fix issue where ttylog did not test length of device. Bug # 553945 reported in Debian regarding an issue where ttylog does not check the length of the device name, which caused a segfault if the name was too long. Reference also ttylog bug # 3. 2012-09-25 Robert James Clay 0.1.e * Add missing '-f' option information to ttylog man page. 2011-02-16 Robert James Clay 0.1.d * Corrected a misspelling of the word 'version' in ttylog.c. * Change to using jame@rocasa.us for my email address. * Corrected the FSF mailing address in the COPYRIGHT file. * Explicitly noted copyright information at beginning of ttylog.c. * Derived this ttylog ChangeLog from debian/changelog, which is where all changes were being noted previously. 2008-06-26 Robert James Clay 0.1.c * Added support for 4800 baud (Closes: Debian bug#203356) * Remove unneeded printf for flushed option. (Closes: Debian bug#267872) * Change ICRNL to IGNCR for connection setup. (Closes: Debian bug#280629) * Remove del1013() and other unused code (Closes: Debian bug#271098) * Fix nostrip build issue. (Closes: bug#438226) 2002-11-04 Tibor Koleszar 0.1.b-3 * Using optional output flush - Closes: Debian bug#164778 2002-01-12 Tibor Koleszar 0.1.b-2 * Its not a debian native package - Closes: Debian bug#127498 2002-01-12 Tibor Koleszar 0.1.b-1 * Removed binary files from upstream - Closes: Debian bug#127496 * Added COPYRIGHT and LICENCE files - Closes: Debian bug#127499 2001-01-02 Tibor Koleszar 0.1.a-3 * Changed typo at Tibor Koleszar -h (verison -> version) 2000-01-06 Tibor Koleszar 0.1.a-2 * fflushed output 1999-06-04 Tibor Koleszar 0.1.a-1 * Initial release. ttylog-0.29/INSTALL000066400000000000000000000025211273057620700140300ustar00rootroot00000000000000How to build ttylog =================== CMake is now the standard build system for ttylog; see the 'Legacy Makefile' section for information about an alternate way of doing the build and install. (1) Create a build directory for CMake to work in. mkdir cd (2) Run CMake to configure and create the build system files. cmake [OPTIONS] -- OR -- ccmake -- OR -- cmake-gui (3) On systems where Makefiles are used, then run: make sudo make install For more details on the options available as well as other information, see the CMake documentation. Legacy Makefile =============== Note that if you do not have CMake available to you or do not wish to use it, see below for a copy of an example Makefile for ttylog; you can extract it to the ttylog source directory and use that instead. # Legacy Makefile for ttylog CFLAGS+= -Wall -g -O2 INS = /usr/bin/install GZIP = /bin/gzip all: ttylog ttylog: ttylog.o $(CC) $(LDFLAGS) -o ttylog ttylog.o ttylog.o: ttylog.c $(CC) $(CPPFLAGS) $(CFLAGS) -c ttylog.c clean: rm -f *.o ttylog core *~ install: ttylog $(INS) -o root -g root -m 0755 ttylog $(DESTDIR)/usr/sbin $(INS) -o root -g root -m 0444 ttylog.8 $(DESTDIR)/usr/share/man/man8 ttylog-0.29/LICENSE000066400000000000000000000366361273057620700140220ustar00rootroot00000000000000GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 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It was originally written and packaged for Debian by Tibor Koleszar and is now maintained by Robert James Clay. Information about how to build ttylog can be found in the INSTALL file. Copyright is GPL-2+, details of which can be found in the COPYRIGHT and LICENSE files. Usage: ------ ttylog [-b|--baud] [-d|--device] [-f|--flush] [-t|--timeout] > /path/to/logfile If you are not using the timeout option, you can stop it running by pressing a ctrl-c when it's going to the screen or doing "kill -HUP nnnn" if running it in the background. Web sites ----------- ttylog website: http://ttylog.sourceforge.net/ ttylog project: https://sourceforge.net/projects/ttylog/ Code ---- ttylog Git repository: http://sourceforge.net/p/ttylog/code/ ttylog at GitHub: https://github.com/rocasa/ttylog Support ------- https://sourceforge.net/p/ttylog/support-requests/ https://sourceforge.net/p/ttylog/bugs/ https://sourceforge.net/p/ttylog/patches/ https://sourceforge.net/p/ttylog/feature-requests/ https://github.com/rocasa/ttylog/issues ttylog-0.29/TODO000066400000000000000000000115471273057620700134770ustar00rootroot00000000000000ttylog TODO: --------------------------------------------------------------------------- - Start adding some kind of testing using CTest. https://sourceforge.net/p/ttylog/feature-requests/9/ --------------------------------------------------------------------------- README.md - Use single quotes for the 'kill -HUP nnnn' example - Use markdown to make the lists into bulleted lists (Web Sites and Support and Code). - Put spaces around the "|" char in the Usage line. --------------------------------------------------------------------------- - https://sourceforge.net/p/ttylog/feature-requests/8/ Add functionality to enable the creation of RPM source and binary archives, at least starting out with the default (minimal) ones that can be created using the CMake functionalty that is available. Reference also: https://cmake.org/Wiki/CMakeUserUseRPMTools https://cmake.org/Wiki/CMake:CPackPackageGenerators --------------------------------------------------------------------------- https://sourceforge.net/p/ttylog/bugs/7/ - 14 Feb 2013: in the code parsing the '-d|--device' parameter, an if/else stanza is used to set the modem_device variable if a device is actually listed, also taking care of the issue for if the device name is too long; but the else clause is there but empty. Is the else clause actually needed? The first step after the parameter passing and just a few lines later is checking the length of the modem_device name and failing out if "no device is set". Move that length check to the else clause? Also; is that "!strcmp" enough? There are actually three not two possible results to that comparision. -> these also may be resolved by changing to use getopts or getopts long or one of the other commandline parsing libraries - June 2015: or would it be better to change to using getopts_long()? - there had been at feature request type thing that included an added option, though the patch they included (on an older version) did not appear to include the code for it. - this is still present with v0.29 - this should error out because of the bad option '--b', when there is only supposed to be '-b' or '--baud' option, but doesn't. This may be resolved but changing to use the standard getopt or the arg_parse (Argp) library. /usr/sbin/ttylog --b 2400 -d /dev/ttyS0 http://www.gnu.org/software/libc/manual/html_node/Parsing-Program-Arguments.html http://www.gnu.org/software/libc/manual/html_node/Getopt-Long-Option-Example.html --------------------------------------------------------------------------- - Looks like I need to work on the hardening issues at the source, as the current pkg build under stretch now results in no hardening related lintian results but it needs more investigation because this shows on Debian Stretch with gcc v5.3.1-21: $ hardening-check --verbose ttylog ttylog: Position Independent Executable: yes Stack protected: no, not found! Fortify Source functions: yes (some protected functions found) unprotected: fgets unprotected: strncpy protected: printf protected: fdelt Read-only relocations: yes Immediate binding: yes ---------------------------------------------------------------------------- - https://sourceforge.net/p/ttylog/bugs/8/ - June 2016: compile time warnings, found building v0.28 for debian /usr/bin/cmake -E cmake_progress_report /tmp/buildd/ttylog-0.28/obj-x86_64-linux-gnu/CMakeFiles 1 [100%] Building C object CMakeFiles/ttylog.dir/ttylog.c.o /usr/bin/cc -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -D_FORTIFY_SOURCE=2 -I/tmp/buildd/ttylog-0.26 -o CMakeFiles /ttylog.dir/ttylog.c.o -c /tmp/buildd/ttylog-0.28/ttylog.c /tmp/buildd/ttylog-0.28/ttylog.c: In function 'main': ---------------------------------------------------------------------------- For v0.3n ? - Now have splint installed and a simple 'splint ttylog' results in multiple issues found with the header files. - use 'splint' to check the code? - had an issue with 'splint', so installed adlint; issues with that as well. Need to learn more about either. ---------------------------------------------------------------------------- - Change the ttylog.8 file to be an asciidoc source file, then add the necessary steps to CMakeLists.txt to get at least the man page from that & perhaps also an optional html version doc file as well? ------------------------------------------------------------------------------- - Build in Debian Stretch in June 2016 results in the following from Lintian: P: ttylog source: debian-watch-may-check-gpg-signature https://lintian.debian.org/tags/debian-watch-may-check-gpg-signature.html - Investigate using my GPG key to sign upstream tarball; I already use it to sign the tags in the code repository. ------------------------------------------------------------------------------ ttylog-0.29/config.h.in000066400000000000000000000005621273057620700150250ustar00rootroot00000000000000/** * Auto-generated configuration header. * See config.h.in if you need to modify the config.h content. */ #ifndef _TTYLOG_CONFIG_H_ #define _TTYLOG_CONFIG_H_ #define TTYLOG_VERSION_MAJOR @TTYLOG_VERSION_MAJOR@ #define TTYLOG_VERSION_MINOR @TTYLOG_VERSION_MINOR@ #define TTYLOG_VERSION_PATCH @TTYLOG_VERSION_PATCH@ #define TTYLOG_VERSION "@TTYLOG_VERSION@" #endif ttylog-0.29/ttylog.8000066400000000000000000000024531273057620700144160ustar00rootroot00000000000000.TH TTYLOG 8 "2016-06-02" "" "" .SH NAME ttylog \- serial device logger .SH SYNOPSIS .B ttylog [-b|--baud] [-d|--device] [-f|--flush] [-t|--timeout] > /path/to/logfile .PP If you are not using the timeout option, you can stop it running by pressing a ctrl-c when it's going to the screen or doing "kill -HUP nnnn" (where nnnn is the process ID for ttylog) if running in the background. .SH DESCRIPTION This program writes everything that comes from a serial device like /dev/ttyS1 onto stdout. You can specify the device and the baud rate of the device. .SH OPTIONS ttylog follows the GNU command line syntax, with long options starting with two dashes('-'). A summary of the options is included below: .TP .B -h, --help Displays a little help .TP .B -v, --version Version number of ttylog plus Copyright information .TP .B -b, --baud Baud rate of the device. Available baud rates: 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200 .TP .B -d --device The serial device. For example /dev/ttyS1 .TP .B -f --flush Output buffers are flushed after every write. .TP .B -t --timeout How long to run ttylog, in seconds. .SH AUTHOR This manual page was originally written by Tibor Koleszar , for the Debian GNU/Linux system. Modifications and updates written by Robert James Clay . ttylog-0.29/ttylog.c000066400000000000000000000147361273057620700145000ustar00rootroot00000000000000/* ttylog - serial port logger Copyright (C) 1999-2002 Tibor Koleszar Copyright (C) 2008-2016 Robert James Clay Copyright (C) 2016 Alexander (MrMontag) Fust Copyright (C) 2016 Logan Rosen 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 #include #include #include #include #include #include #include "config.h" #define BAUDN 9 char flush = 0; char *BAUD_T[] = {"300", "1200", "2400", "4800", "9600", "19200", "38400", "57600", "115200"}; int BAUD_B[] = {B300, B1200, B2400, B4800, B9600, B19200, B38400, B57600, B115200}; int main (int argc, char *argv[]) { FILE *logfile; fd_set rfds; int retval, i, j, baud = -1; timer_t timerid; struct sigevent sevp; sevp.sigev_notify = SIGEV_SIGNAL; sevp.sigev_signo = SIGINT; int fd; char line[1024], modem_device[512]; struct termios oldtio, newtio; modem_device[0] = 0; if (argc < 2) { printf ("%s: no params. try %s -h\n", argv[0], argv[0]); exit (0); } for (i = 1; i < argc; i++) { if (!strcmp (argv[i], "-h") || !strcmp (argv[i], "--help")) { printf ("ttylog version %s\n", TTYLOG_VERSION); printf ("Usage: ttylog [-b|--baud] [-d|--device] [-f|--flush] [-t|--timeout] > /path/to/logfile\n"); printf (" -h, --help This help\n -v, --version Version number\n -b, --baud Baud rate\n"); printf (" -d, --device Serial device (eg. /dev/ttyS1)\n -f, --flush Flush output\n"); printf (" -t, --timeout How long to run, in seconds.\n"); printf ("ttylog home page: \n\n"); exit (0); } if (!strcmp (argv[i], "-v") || !strcmp (argv[i], "--version")) { printf ("ttylog version %s\n", TTYLOG_VERSION); printf ("Copyright (C) 2016 Robert James Clay \n"); printf ("Copyright (C) 2016 Logan Rosen \n"); printf ("Copyright (C) 2016 Alexander (MrMontag) Fust \n"); printf ("Copyright (C) 2002 Tibor Koleszar \n"); printf ("License GPLv2+: \n"); printf ("This is free software: you are free to change and redistribute it.\n"); printf ("There is NO WARRANTY, to the extent permitted by law.\n\n"); exit (0); } if (!strcmp (argv[i], "-f") || !strcmp (argv[i], "--flush")) { flush = 1; } if (!strcmp (argv[i], "-b") || !strcmp (argv[i], "--baud")) { if (argv[i + 1] != NULL) { for (j = 0; j < BAUDN; j++) if (!strcmp (argv[i + 1], BAUD_T[j])) baud = j; } if (baud == -1) { printf ("%s: invalid baud rate %s\n", argv[0], argv[i + 1]); exit (0); } } if (!strcmp (argv[i], "-d") || !strcmp (argv[i], "--device")) { if (argv[i + 1] != NULL) { memset (modem_device, '\0', sizeof(modem_device)); strncpy (modem_device, argv[i + 1], sizeof(modem_device)-1); modem_device[(sizeof(modem_device)-1)] = '\0'; } else { } } if (!strcmp (argv[i], "-t") || !strcmp (argv[i], "--timeout")) { if (argv[i + 1] == NULL) { printf ("%s: invalid time span %s\n", argv[0], argv[i + 1]); exit(0); } if (timer_create (CLOCK_REALTIME, &sevp, &timerid) == -1) { printf ("%s: unable to create timer: %s\n", argv[0], strerror(errno)); exit (0); } struct itimerspec new_value; new_value.it_interval.tv_sec = 0; new_value.it_interval.tv_nsec = 0; int sec = atoi(argv[i + 1]); if (!sec) { printf ("%s: invalid time span %s\n", argv[0], argv[i + 1]); exit(0); } new_value.it_value.tv_sec = atoi(argv[i + 1]); new_value.it_value.tv_nsec = 0; if (timer_settime(timerid, 0, &new_value, NULL) == -1) { printf ("%s: unable to set timer time: %s\n", argv[0], strerror(errno)); exit (0); } } } if (!strlen(modem_device)) { printf ("%s: no device is set. Use %s -h for more information.\n", argv[0], argv[0]); exit (0); } logfile = fopen (modem_device, "rb"); if (logfile == NULL) { printf ("%s: invalid device %s\n", argv[0], modem_device); exit (0); } fd = fileno (logfile); tcgetattr (fd, &oldtio); /* save current serial port settings */ bzero (&newtio, sizeof (newtio)); /* clear struct for new port settings */ newtio.c_cflag = CRTSCTS | CS8 | CLOCAL | CREAD; newtio.c_iflag = IGNPAR | IGNCR; newtio.c_oflag = 0; newtio.c_lflag = ICANON; /* Only truly portable method of setting speed. */ cfsetispeed (&newtio, BAUD_B[baud]); cfsetospeed (&newtio, BAUD_B[baud]); tcflush (fd, TCIFLUSH); tcsetattr (fd, TCSANOW, &newtio); /* Clear the device */ { int flags = fcntl (fd, F_GETFL, 0); fcntl (fd, F_SETFL, flags | O_NONBLOCK); while (fgets (line, 1024, logfile) ); fcntl (fd, F_SETFL, flags); } if (flush) setbuf(stdout, NULL); while (1) { FD_ZERO (&rfds); FD_SET (fd, &rfds); retval = select (fd + 1, &rfds, NULL, NULL, NULL); if (retval) { fgets (line, 1024, logfile); fputs (line, stdout); if (flush) { fflush(stdout); } } } fclose (logfile); tcsetattr (fd, TCSANOW, &oldtio); return 0; }