script: handle terminal resize on SIGWINCH

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

script: handle terminal resize on SIGWINCH

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 <[email protected]>
Sponsored by: Modirum MDPay
Sponsored by: Klara, Inc.

(cherry picked from commit 8ceac8e13dccbe4e177c8f2f443b87b7d2e3edb3)

show more ...

script: minor style improvements

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.

(

script: minor style improvements

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.

(cherry picked from commit 4459abe334eb4dbd416fa8094a64afc065ccd1cc)

show more ...

Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Mark usage function as __dead2 in programs where it does not return

In most cases, usage does not return, so mark them as __dead2. For the
cases where they do return, they have not been marked __dea

Mark usage function as __dead2 in programs where it does not return

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

show more ...

script: Handle a missing 's' stamp gracefully.

Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D37182

script: Further usage string nits.

Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D37177

script: Use size_t / ssize_t where needed.

Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D37177

script: Add usage string for playback mode.

Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D37138

script: Correct -F in man page and usage string.

Sponsored by: Klara, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D37138

script: use %n at the end of default tstamp_fmt

Since we are only outputting time-stamps when they differ
ending it with a newline, interferes with the output less.

script -T skip timstamps for same second

The result is much more readable if we only output the time-stamp
when it is at least 1s since last one.

script add -T fmt to print time-stamps

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 t

script add -T fmt to print time-stamps

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

show more ...

script(1): work around slow reading child

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 spa

script(1): work around slow reading child

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 <[email protected]>
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

show more ...

Fix typo in comment.

Noticed by: bapt@

Have script accept and ignore -e for Linux compat

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 chil

Have script accept and ignore -e for Linux compat

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.

show more ...

script: Minor cleanups.

- 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

script: Minor cleanups.

- 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 <[email protected]>
MFC after: 1 week

show more ...

script: Put the terminal in raw mode when playing back a session.

Otherwise recorded sessions of some interactive programs do not play
back properly.

PR: 248377
Submitted by: Soumendra Ganguly <0.

script: Put the terminal in raw mode when playing back a session.

Otherwise recorded sessions of some interactive programs do not play
back properly.

PR: 248377
Submitted by: Soumendra Ganguly <[email protected]>
MFC after: 1 week

show more ...

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier f

General further adoption of SPDX licensing ID tags.

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.

show more ...

Renumber copyright clause 4

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

Renumber copyright clause 4

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 <[email protected]>
Pull Request: https://github.com/freebsd/freebsd/pull/96

show more ...

Directly set the O_CLOEXEC flags via the open(2) attributes

MFC after: 1 week

Record command exit status in the typescript file when running simple commands.

Also capitalize 'command:'.

Relnotes: yes
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

Just exit in the child if execve(2) fails.

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

Just exit in the child if execve(2) fails.

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

show more ...

Filemon: Attach from the child to avoid racing with the parent attach.

This is the same as how the bmake filemon usage works.

This also fixes failed attach not properly flushing the TTY.

MFC after

Filemon: Attach from the child to avoid racing with the parent attach.

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

show more ...

Bring back r226403, the fix for bin/161526, which was (accidentally?)
reverted in r238896.

PR: bin/161526
Reported by: Karli.Sjoberg slu.se
MFC after: 3 days

Add -F to flush output after each write. With this, I can
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

Add -F to flush output after each write. With this, I can
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.

show more ...