src/lib/libc/stdlib/system.3, branch stable/13

system(3): Clarify return values

2026-03-04T14:46:04+00:00

Our manual page currently states that system() will return 127 if it
fails to execute the shell.  The actual return value is, to quote POSIX,
“as if the command language interpreter had terminated using exit(127)
or _exit(127)”.

MFC after:	1 week
Sponsored by:	Klara, Inc.
Reviewed by:	bnovkov, kevans
Differential Revision:	https://reviews.freebsd.org/D55483

(cherry picked from commit 7305604b29d3db29c9bb5de6e7a25829fb541d1e)

Remove $FreeBSD$: one-line nroff pattern

2023-08-23T17:43:32+00:00

Remove /^\.\\"\s*\$FreeBSD\$$\n/

Similar commit in main:
(cherry picked from commit b2c76c41be32)

libc: Fix most issues reported by mandoc

2020-12-19T14:54:28+00:00

- varios "new sentence, new line" warnings
- varios "sections out of conventional order" warnings
- varios "unusual Xr order" warnings
- varios "missing section argument" warnings
- varios "no blank before trailing delimiter" warnings
- varios "normalizing date format" warnings

MFC after:	1 month

Document the fact that system(3) can easily be misused due to shell meta

2015-07-25T00:21:29+00:00

characters are honored.  While I'm there also mention posix_spawn in the
SEE ALSO section.

MFC after:	2 weeks

Renumber clauses to reduce diffs to other versions

2013-06-13T00:19:30+00:00

NetBSD, OpenBSD, and Android's Bionic number the clauses 1 through 3,
so follow suit to make comparison easier.

Mark the section describing return values with an appropriate section flag.

2008-06-26T08:24:59+00:00

PR:		docs/122818
MFC after:	3 days

Per Regents of the University of Calfornia letter, remove advertising

2007-01-09T00:28:16+00:00

clause.

# If I've done so improperly on a file, please let me know.

Remove spurious period.

2002-05-27T03:45:27+00:00

Move to using .In instead of .Fd #include <> for include mark-up.

2001-09-07T14:46:36+00:00

Inspired by comment from:	dd

Remove whitespace at EOL.

2001-07-15T07:53:42+00:00