Commit Graph

42 Commits

Author SHA1 Message Date
Jilles Tjoelker
7696168706 sh: Allow kill %job on jobs started without job control.
When killing a %job started without job control, kill all processes in it.
As with process groups and zombies, if any process in the job can be killed
or has already terminated, the command is successful.

This also fixes occasional failures of the builtins/kill1.0 test.
2014-03-15 14:58:48 +00:00
Jilles Tjoelker
4646e82dcd sh: Successfully do nothing when killing a terminated job.
If a job has terminated but is still known, silently do nothing when using
the kill builtin with the job specifier. Formerly, the shell called kill()
with the process group ID that might have been reused.
2014-03-08 19:44:34 +00:00
Eitan Adler
cdbf4feea9 Remove cast that was only required for K&R C.
Reviewed by:	jilles
2013-04-28 22:05:01 +00:00
Jilles Tjoelker
3658c9776e kill: Note that this is used both as a normal program and a shell builtin. 2011-03-01 21:48:22 +00:00
Jilles Tjoelker
12dacf622b Make sys_signame upper case.
This matches the constants from <signal.h> with 'SIG' removed, which POSIX
requires kill and trap to accept and 'kill -l' to write.

'kill -l', 'trap', 'trap -l' output is now upper case.

In Turkish locales, signal names with an upper case 'I' are now accepted,
while signal names with a lower case 'i' are no longer accepted, and the
output of 'killall -l' now contains proper capital 'I' without dot instead
of a dotted capital 'I'.
2011-02-04 16:40:50 +00:00
Jilles Tjoelker
0a62a9caa9 sh: Add kill builtin.
This allows specifying a %job (which is equivalent to the corresponding
process group).

Additionally, it improves reliability of kill from sh in high-load
situations and ensures "kill" finds the correct utility regardless of PATH,
as required by POSIX (unless the undocumented %builtin mechanism is used).

Side effect: fatal errors (any error other than kill(2) failure) now return
exit status 2 instead of 1. (This is consistent with other sh builtins, but
not in NetBSD.)

Code size increases about 1K on i386.

Obtained from:	NetBSD
2010-12-21 22:47:34 +00:00
Jilles Tjoelker
9e7839f632 kill: Stop processing if a syntactically invalid pid is encountered.
So a command like
  kill _HUP 1
now fails without sending SIGTERM to init.

The behaviour when kill(2) fails remains unchanged: processing continues.
This matches other implementations and POSIX and is useful for killing
multiple processes at once when some of them may already be gone.

PR:		bin/40282
2010-07-29 16:40:45 +00:00
Konstantin Belousov
c67ea27d10 Do not restrict the allowed signals that can be specified by number
to the list of signals that has symbolic name. It was impossible to
send rt signals with kill(1) due to the check.

MFC after:	1 week
2010-02-25 13:53:09 +00:00
Ruslan Ermilov
0dc55f7681 Fix markup. 2007-03-04 09:15:12 +00:00
Ruslan Ermilov
6fca4c7c3f Add the new standard EXIT STATUS section where appropriate.
Sort standard sections in the (documented) preferred order.
2005-01-16 16:41:59 +00:00
Warner Losh
9ddb49cbe4 /*- or .\"- or #- to begin license clauses. 2005-01-10 08:39:26 +00:00
Ruslan Ermilov
1171aedcdf Deal with double whitespace. 2004-07-03 00:06:28 +00:00
Mark Murray
6195fb4102 Remove clause 3 from the UCB licenses.
OK'ed by:	imp, core
2004-04-06 20:06:54 +00:00
Juli Mallett
c83afe7be9 static and const. 2004-03-15 04:10:29 +00:00
Nate Lawson
205bc8633e Use sys_nsig instead of the static NSIG. DragonflyBSD kill.c:1.3
Obtained from:	DragonflyBSD
2004-01-28 19:04:14 +00:00
David E. O'Brien
09a80d4867 Quiet warnings about copyright[]. 2003-05-01 16:58:57 +00:00
David E. O'Brien
5eb43ac2f7 Consistently use __FBSDID 2002-06-30 05:13:54 +00:00
Tim J. Robbins
993895ac33 Markup nits: use the Ar macro when describing the -signal_name and
-signal_number options, and for referring to the "pid" argument.
2002-06-13 08:46:01 +00:00
Tim J. Robbins
16a6357c9b Add examples and diagnostics sections 2002-06-13 08:40:01 +00:00
Tim J. Robbins
08de34ac01 Support the "--" end of options marker, useful to disambiguate between
signal numbers and process groups (negative pid arguments), and
required by SUSv3.
2002-06-13 08:07:20 +00:00
Tim J. Robbins
1be157dc3d Correct history (again): V3 had a kill command, only it was in section 8,
not 1.
2002-06-03 14:59:49 +00:00
Tim J. Robbins
e3623a80a4 Correct History section: kill(1) appeared in V4, not V6. 2002-06-03 14:45:20 +00:00
Warner Losh
46251dde8f o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
  they already are.
2002-02-02 06:48:10 +00:00
David E. O'Brien
a748290789 Default to WARNS=2. Binary builds that cannot handle this must explicitly
set WARNS=0.

Reviewed by:	mike
2001-12-04 01:57:47 +00:00
Dima Dorfman
982f5d88ff WARNS= -> WARNS?=
Submitted by:	Mike Barcroft <mike@q9media.com>
2001-06-22 21:38:30 +00:00
Kris Kennaway
961a739a43 Silence WARNS=2 and BDECFLAGS on the i386 and alpha
MFC After:	1 week
2001-05-20 04:52:37 +00:00
Ruslan Ermilov
be8b149795 mdoc(7) police: use the new features of the Nm macro. 2000-11-20 11:39:41 +00:00
Sheldon Hearn
e6d3cf2648 Correct some hard sentence breaks. Only those surrounding the previous
commit and those which cause ugly nroff output have been fixed, since
the purpose of the style guideline which they contravene is to reduce
the sizes of deltas.

Reported by:	bde
1999-09-14 11:46:04 +00:00
Sheldon Hearn
c644db6aa2 Improve shell documentation:
* Consistently misspell built-in as builtin.

* Add a builtin(1) manpage and create builtin(1) MLINKS for all shell
  builtin commands for which no standalone utility exists.  These MLINKS
  replace those that were created for csh(1).

* Add appropriate xrefs for builtin(1) to the csh(1) and sh(1) manpages,
  as well as to the manpages of standalone utilities which are supported
  as shell builtin commands in at least one of the shells. In such
  manpages, explain that similar functionality may be provided as a
  shell builtin command.

* Improve sh(1)'s description of the cd builtin command. Csh(1) already
  describes it adequately. Replace the cd(1) manpage with a builtin(1)
  MLINKS link.

* Clean up some mdoc problems: use Xr instead of literal "foo(n)"; use
  Ic instead of Xr for shell builtin commands.

* Undo English contractions.

Reviewed by:	mpp, rgrimes
1999-09-08 15:40:46 +00:00
Peter Wemm
2a4562393f $Id$ -> $FreeBSD$ 1999-08-27 23:15:48 +00:00
Joseph Koshy
c38eceafa4 kill.1: Remove reference to obsolete sigvec(2) man page. Removed
self reference in sigaction(2) man page.

Submitted by: Josh Gilliam <josh@quick.net>
PR: 6617
1998-05-18 03:33:11 +00:00
Philippe Charnier
61c9c5ebee Correct use of .Nm. Add rcsid. 1998-05-13 07:47:35 +00:00
Jonathan Lemon
d623c5c11e Disallow empty arguments (eg: '') as process ids.
PR:		2631
Submitted by:	Arne Henrik Juul <arnej@imf.unit.no>
1997-08-21 21:34:43 +00:00
Philippe Charnier
749d4bb649 Cosmetic change in usage string. 1997-06-06 06:40:06 +00:00
Philippe Charnier
7999ef2f38 Signal # NSIG (32) is invalid.
Obtained from: {Net|Open}BSD
1997-06-03 06:24:50 +00:00
Peter Wemm
b97fa2ef50 Revert $FreeBSD$ to $Id$ 1997-02-22 14:13:04 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Steve Price
ffcfff94d0 Merge Lite2 mods, and -Wall cleaning. 1996-12-14 06:01:00 +00:00
Wolfram Schneider
5df3108f6a add a reference to killall(1) 1996-07-03 22:19:50 +00:00
Jordan K. Hubbard
8d0ab00912 Allow 0 as a signal number to match the man page.
Noticed by:	Mike Murphy <mrm@Sceard.COM>
1995-03-05 21:52:41 +00:00
David Greenman
89730b290a Added $Id$ 1994-09-24 02:59:15 +00:00
Rodney W. Grimes
4b88c807ea BSD 4.4 Lite bin Sources 1994-05-26 06:18:55 +00:00