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path: root/usr.bin/script/script.c
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2024-04-26script: handle terminal resize on SIGWINCHKyle Evans
Add a -w flag to forward terminal resize events on to the child, which can be useful in some circumstances to avoid terminal corruption. Reviewed by: des Co-authored-by: Xavier Beaudouin <xavier.beaudouin@klarasystems.com> Sponsored by: Modirum MDPay Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D44167
2024-04-26script: minor style improvementsXavier Beaudouin
Fix some nits pointed out by checkstyle9.pl in advance of functional changes to script(1). Reviewed by: des Sponsored by: Modirum MDPay Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D44167
2023-11-26Remove copyright strings ifdef'd outWarner Losh
We've ifdef'd out the copyright strings for some time now. Go ahead and remove the ifdefs. Plus whatever other detritis was left over from other recent removals. These copyright strings are present in the comments and are largely from CSRG's attempt at adding their copyright to every binary file (which modern interpretations of the license doesn't require). Sponsored by: Netflix
2023-11-26usr.bin: Remove ancient SCCS tags.Warner Losh
Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
2023-08-16Remove $FreeBSD$: one-line .c patternWarner Losh
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
2023-07-07Mark usage function as __dead2 in programs where it does not returnAlfonso Gregory
In most cases, usage does not return, so mark them as __dead2. For the cases where they do return, they have not been marked __dead2. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/735
2022-10-27script: Handle a missing 's' stamp gracefully.Dag-Erling Smørgrav
Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D37182
2022-10-27script: Further usage string nits.Dag-Erling Smørgrav
Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D37177
2022-10-27script: Use size_t / ssize_t where needed.Dag-Erling Smørgrav
Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D37177
2022-10-27script: Add usage string for playback mode.Dag-Erling Smørgrav
Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D37138
2022-10-27script: Correct -F in man page and usage string.Dag-Erling Smørgrav
Sponsored by: Klara, Inc. MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D37138
2022-03-10script: use %n at the end of default tstamp_fmtSimon J. Gerraty
Since we are only outputting time-stamps when they differ ending it with a newline, interferes with the output less.
2022-03-09script -T skip timstamps for same secondSimon J. Gerraty
The result is much more readable if we only output the time-stamp when it is at least 1s since last one.
2022-03-09script add -T fmt to print time-stampsSimon J. Gerraty
script -r is useful for recording time-stamps of when output happened. With -T, rather than playback the script in real-time we simply print the time-stamps to show when the output happened. This is very useful for example, for analyzing boot time activity. If the fmt provided contains no % characters the default %n@ %s [%Y-%m-%d %T] is used, which lends itself to analysis by tools as well as humans. Sponsored by: Juniper Networks, Inc. Reviewed by: allanjude Differential Revision: https://reviews.freebsd.org/D34511
2022-01-10script(1): work around slow reading childKonstantin Belousov
If child is slow reading from its input, or even completely stops doing the read, script(1) hangs in write(2) to the pts master waiting until there is a space in the terminal discipline buffer. This also stops handling any outer io, as well as child output. Work around the problem by making pts master fd non-blocking, and be prepared for short writes to it. The data to be written to master is buffered in the tailq which is processed when select(2) detects that master is ready for write. PR: 260938 Reported by: наб <nabijaczleweli@nabijaczleweli.xyz> See also: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1003095 Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D33789
2020-09-05Fix typo in comment.Warner Losh
Noticed by: bapt@ Notes: svn path=/head/; revision=365358
2020-09-01Have script accept and ignore -e for Linux compatWarner Losh
In the util-linux version of script, it will always exit with succes. Except when run with -e, in which case it will have the exit value of the child. BSD Script already uses the child's exit value for its exit value. Some config and other helper scripts depend on being able to specify -e. Accept it for compatibility since we'll already to the right thing, but otherwise we ignore it. Notes: svn path=/head/; revision=365052
2020-08-11script: Minor cleanups.Mark Johnston
- Instead of using isatty() to decide whether to call tcgetattr(), just call tcgetattr() directly, since that's all that isatty() does anyway. - Simplify error handling in termset(). Check for errno != ENOTTY from tcgetattr() to handle errors that may be raised while running script(1) under a debugger. PR: 248377 Submitted by: Soumendra Ganguly <soumendraganguly@gmail.com> MFC after: 1 week Notes: svn path=/head/; revision=364112
2020-08-07script: Put the terminal in raw mode when playing back a session.Mark Johnston
Otherwise recorded sessions of some interactive programs do not play back properly. PR: 248377 Submitted by: Soumendra Ganguly <0.gangzta@gmail.com> MFC after: 1 week Notes: svn path=/head/; revision=364039
2017-11-20General further adoption of SPDX licensing ID tags.Pedro F. Giffuni
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Notes: svn path=/head/; revision=326025
2017-02-28Renumber copyright clause 4Warner Losh
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96 Notes: svn path=/head/; revision=314436
2016-04-16Directly set the O_CLOEXEC flags via the open(2) attributesBaptiste Daroussin
MFC after: 1 week Notes: svn path=/head/; revision=298112
2016-03-08Record command exit status in the typescript file when running simple commands.Bryan Drewery
Also capitalize 'command:'. Relnotes: yes MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=296526
2016-03-08Just exit in the child if execve(2) fails.Bryan Drewery
No functional change. This is mostly addressing a false-positive from the clang static analyzer due to it thinking that done() was being called with freed memory, however the kill(0, SIGTERM) made the done() never reached. It doesn't make sense to the show the footer from the child anyhow, nor does it make sense to kill the process group here since the execve(2) failed in the child. This code was leftover from many years of refactoring. MFC after: 1 week Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=296525
2016-03-08Filemon: Attach from the child to avoid racing with the parent attach.Bryan Drewery
This is the same as how the bmake filemon usage works. This also fixes failed attach not properly flushing the TTY. MFC after: 1 week Relnotes: yes Sponsored by: EMC / Isilon Storage Division Notes: svn path=/head/; revision=296524
2014-01-17Bring back r226403, the fix for bin/161526, which was (accidentally?)Mikolaj Golub
reverted in r238896. PR: bin/161526 Reported by: Karli.Sjoberg slu.se MFC after: 3 days Notes: svn path=/head/; revision=260833
2013-12-05Add -F to flush output after each write. With this, I canTom Rhodes
set up a pipe and allow a jr user to watch what I'm doing by running 'script -F pipefile' on it. While here, spell out the month in the .Dd tag like other manual pages. Notes: svn path=/head/; revision=258955
2012-10-26Add "-f" to also output filemon(4) information.David E. O'Brien
Notes: svn path=/head/; revision=242138
2012-10-23Don't include both <sys/param.h> & <sys/types.h>.David E. O'Brien
Notes: svn path=/head/; revision=241972
2012-07-30Add d, p and r switches for recording script sessions with timing dataBrian Somers
and playing sessions back with or without time delays. PR: 114465 Submitted by: ighighi at gmail dot com MFC after: 3 weeks Notes: svn path=/head/; revision=238896
2011-10-15In r225809 the intention was to send VEOF only once if STDIN was not aMikolaj Golub
terminal. Unfortunately the fix was incorrect and for flushtime > 0 it keept sending VEOF. Sent VEOF generates ^D\b\b echoed by the terminal, which was reported in bin/161526. Note, we still send VEOF at least once. Otherwise commands like below would hang forever: echo 1 |script /tmp/script.out cat PR: bin/161526 Reported by: Adrian Wontroba <aw1@stade.co.uk>, Stefan Bethke <stb@lassitu.de> Tested by: Stefan Bethke <stb@lassitu.de> MFC after: 3 days Notes: svn path=/head/; revision=226403
2011-09-27When script(1) reads EOF from input it starts spinning on zero-byteMikolaj Golub
reads eating 100% CPU. Fix this by skipping select on STDIN after reading EOF -- permanently if STDIN is not terminal and for one second if it is. Also after reading EOF from STDIN we have to pass it to the program being scripted. The previous approach was to write zero bytes into the pseudo-terminal. This does not work because zero-byte write does not have any effect on read. Fix this by sending VEOF instead. Submitted by: Ronald Klop <ronald-freebsd8@klop.yi.org> Discussed with: kib, Chris Torek <chris.torek@gmail.com> Approved by: kib MFC after: 1 week Notes: svn path=/head/; revision=225809
2010-12-11Remove the advertising clause from UCB copyrighted files in usr.bin. ThisJoel Dahl
is in accordance with the information provided at ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change Also add $FreeBSD$ to a few files to keep svn happy. Discussed with: imp, rwatson Notes: svn path=/head/; revision=216370
2010-09-16+ Add the SCRIPT environmental variable to the sub-shell. Its value isDavid E. O'Brien
the name of the typescript file. + Add the 'command' argument (if supplied on the command line) to the typescript file. This creates a more complete typescript when invoked this way - more equal to invoking script without supplying the 'command' argument. Notes: svn path=/head/; revision=212770
2010-08-16Mark functions and variables as static.Ed Schouten
All these functions and variables are local to this compilation unit, so there is no reason why we shouldn't mark them static. This slightly reduces the binary size. Notes: svn path=/head/; revision=211394
2010-04-30Remove WNOHANG flag from wait3().Ed Schouten
Because script(1) now reliably terminates when the TTY is closed, it may be the case that the call to wait3() occurs just before the child process exits. This causes error codes to be ignored. Just change script(1) to use waitpid() instead of wait3(). This makes it more portable and prevents the need for a loop, since waitpid() only returns a specified process. PR: bin/146189 Tested by: amdmi3@, older version MFC after: 2 weeks Notes: svn path=/head/; revision=207453
2010-03-11Improve the change made in the previous commit.Ed Schouten
doshell() never returns, so there is no need to see whether we are the parent process. Notes: svn path=/head/; revision=205009
2010-03-11Make script(1) a little less broken.Ed Schouten
Close the file descriptor to the TTY. There is no reason why the parent process should keep track of the descriptor. This ensures that the application inside properly drains the TTY during exit(2). Reported by: alfred MFC after: 2 weeks Notes: svn path=/head/; revision=205008
2010-01-02Remove a warning by adding extra parentheses.Ed Schouten
GCC generates warnings when using "if (foo = bar)". In this case its use is valid. Notes: svn path=/head/; revision=201384
2004-02-15Attempt #2 to fix script(1) if the standard input is closed: If weColin Percival
read EOF from STDIN_FILENO, write zero bytes into the pseudo-terminal; this is interpreted as an EOF by the program being scripted. I've tested this with two non-interactive scripts: # echo 5 | script foo sh -c 'read x; sleep $x; echo bar' # echo bar | xargs script foo echo and one interactive program: # script foo more /etc/passwd and everything seems to work properly... PR: bin/56166, bin/57414, ports/57415, ports/60534 Approved by: rwatson (mentor) MFC after: 2 weeks Notes: svn path=/head/; revision=125848
2004-01-27Back out part of 1.21, since it breaks `script interactive-program`. ThisColin Percival
re-breaks non-interactive portupgrade (or at least old versions of portupgrade); I'll see if I can put together a solution which avoids breaking anything later. Approved by: rwatson (mentor) Noticed by: Stefan Farfeleder, Joshua Goodall Notes: svn path=/head/; revision=125101
2004-01-22Fix SYNOPSIS of manual page, clustering no-arg options correctly.Sheldon Hearn
Sync usage with manpage. Notes: svn path=/head/; revision=124846
2004-01-22Two fixes for script(1):Colin Percival
1. Don't do tty stuff to stdin if stdin isn't a tty. 2. When running in non-interactive mode, don't select(2) on the standard input. This un-breaks non-interactive portupgrade. PR: bin/59036 [1] PR: bin/56166, bin/57414, ports/57415, ports/60534 [2] MFC after: 7 days Approved by: rwatson (mentor) Notes: svn path=/head/; revision=124845
2002-09-04ANSIify function definitions.David Malone
Add some constness to avoid some warnings. Remove use register keyword. Deal with missing/unneeded extern/prototypes. Some minor type changes/casts to avoid warnings. Reviewed by: md5 Notes: svn path=/head/; revision=102944
2002-06-03Use POSIX macros for wait(2)-style status information instead of theMike Barcroft
deprecated 4.2/4.3BSD wait union. Fix some nearby pid_t/int confusion. Notes: svn path=/head/; revision=97788
2002-03-22remove __PWarner Losh
Notes: svn path=/head/; revision=92922
2001-12-12Minor style stuff, use __FBSDID(), remove to-be-default WARNS=2.Mark Murray
Notes: svn path=/head/; revision=87768
2001-12-03Warns cleanups. Add FreeBSD ID.David Malone
Notes: svn path=/head/; revision=87296
2001-07-26Use STD{ERR,IN,OUT}_FILENO instead of their numeric values. TheSheldon Hearn
definitions are more readable, and it's possible that they're more portable to pathalogical platforms. Submitted by: David Hill <david@phobia.ms> Notes: svn path=/head/; revision=80381
2001-07-09Fix the type of the NULL arg to execl()Brian Somers
Idea from: Theo de Raadt <deraadt@openbsd.org> Notes: svn path=/head/; revision=79452
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