Commit Graph

19 Commits

Author SHA1 Message Date
Jilles Tjoelker
e9dec7758d popen(): Add 'e' mode character to set close-on-exec on the new fd.
If 'e' is used, the kernel must support the recently added pipe2() system
call.

The use of pipe2() with O_CLOEXEC also fixes race conditions between
concurrent popen() calls from different threads, even if the close-on-exec
flag on the fd of the returned FILE is later cleared (because popen() closes
all file descriptors from earlier popen() calls in the child process).
Therefore, this approach should be used in all cases when pipe2() can be
assumed present.

The old version of popen() rejects "re" and "we" but treats "r+e" like "r+".
2013-05-20 17:31:18 +00:00
Warner Losh
c879ae3536 Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.
2007-01-09 00:28:16 +00:00
Ruslan Ermilov
24a0682c64 Sort sections. 2005-01-20 09:17:07 +00:00
Philippe Charnier
0d511e328f Add or correct section number in .Xr. Use .Vt or .Fn
instead of .Xr when needed
2003-06-08 10:01:52 +00:00
Tim J. Robbins
c0595bfc20 popen() is a function, not an argument. 2003-01-03 05:21:59 +00:00
Ruslan Ermilov
32eef9aeb1 mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00
Ruslan Ermilov
251c176f41 mdoc(7) police: use certified section headers wherever possible. 2000-11-17 11:44:16 +00:00
Ruslan Ermilov
726b61ab5f Avoid use of direct troff requests in mdoc(7) manual pages. 2000-11-10 17:46:15 +00:00
Alexey Zelkin
25bb73e063 Introduce ".Lb" macro to libc manpages.
More libraries manpages updates following.
2000-04-21 09:42:15 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Nik Clayton
fbc400a67a Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

     .\"    $Id$
     .\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by:            bde
1999-07-12 20:50:10 +00:00
Joseph Koshy
bee0365a4a Fix a .Nm -> .Fn fix that was missed in the previous commit.
Pointed-out-by:	Bruce Evans
1998-11-09 06:52:46 +00:00
Joseph Koshy
41a3e3b022 Update manual page to reflect changes in rev 1.12 of
"src/lib/libc/gen/popen.c" --- popen() in the child
now closes any copies of popen()'ed descriptors in the parent.
1998-11-06 07:09:22 +00:00
Jordan K. Hubbard
a414d6056c Mention when bidirectional features first appeared. 1998-02-17 16:36:48 +00:00
Bruce Evans
e1dfe717ec Document that popen() uses a bidirectional pipe (in FreeBSD) and not a
socket pair (as in Lite2).
1997-03-11 19:28:24 +00:00
Peter Wemm
1edb99c337 Merge from Lite2 (YAMFL2? :-)
Document that popen() can now create bidirectional pipes and handles.
Note that this needs to be updated since we have a native bidirectional
pipe and don't use socketpair() here.
1997-03-11 11:46:19 +00:00
Wolfram Schneider
75141cc987 Sort cross references. 1997-01-20 23:23:22 +00:00
Mike Pritchard
064f007493 Added missing section numbers to a bunch of .Xr macros, or
converted them into .Fn macros where appropriate.  Also fixed
up some minor formatting problems.
1996-03-27 20:49:07 +00:00
Rodney W. Grimes
58f0484fa2 BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00