Mike Smith
26c51fb453
Conform to POSIX and close any copies of popen() descriptors inherited by a
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popen()ed child.
PR: misc/7810
Submitted by: Wayne Scott <wscott@ichips.intel.com>
1998-10-15 01:47:40 +00:00
Peter Wemm
0c372549f6
Avoid the need for calling functions that malloc after a vfork().
1998-10-11 14:11:51 +00:00
Bruce Evans
0890dc6f44
vfork -> fork. The child calls execl() which calls malloc(), so
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vfork() can't be used. We could use alloca() in execl() so that
it can be called between vfork() and execve(), but a "portable"
popen() shouldn't depend on this. Calling execle() instead of
execl() should be fairly safe, since execle() is supposed to be
callable from signal handlers and signal handlers can't call
malloc(). However, execle() is broken.
1998-10-10 19:30:45 +00:00
Bruce Evans
2b9ac168ec
FIxed the cleanup. I forgot to leave stdin alone in the usual (!twoway)
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case.
1997-04-22 09:44:06 +00:00
John Dyson
5ae9116a7d
Clean-up my modification of popen.c for vfork. Bruce's (this) is better.
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Submitted by: Bruce Evans <bde@freebsd.org>
1997-04-20 20:17:04 +00:00
John Dyson
1174d9f9df
Fix the problem in popen that makes correct vfork semantics fail.
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Specifically, popen modifies a variable "pdes[1]" in the child
in such a way that it breaks code in the parent (due to the address
space sharing.)
1997-04-16 03:26:50 +00:00
Bruce Evans
035e5608d5
Fixed cleaning up after malloc failure, which was broken by Lite2.
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We don't use socketpair(), so don't #include <sys/socket.h>.
Restored some gcc-quieting parentheses that were lost in the Lite2 merge.
1997-03-11 18:51:43 +00:00
Peter Wemm
adf6ad9e69
Merge from Lite2:
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filesystem include updates, duplicate group suppression, cleanups,
filesystem whiteout support (unionfs), bidir popen().
1997-03-11 11:52:33 +00:00
Jordan K. Hubbard
51295a4d3e
General -Wall warning cleanup, part I.
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Submitted-By: Kent Vander Velden <graphix@iastate.edu>
1996-07-12 18:57:58 +00:00
Jeffrey Hsu
e78bad2371
Don't cast void functions to void.
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Obtained from: NetBSD commit by jtc on June 16, 1995.
1995-06-20 18:31:16 +00:00
Rodney W. Grimes
6c06b4e2aa
Remove trailing whitespace.
1995-05-30 05:51:47 +00:00
Rodney W. Grimes
58f0484fa2
BSD 4.4 Lite Lib Sources
1994-05-27 05:00:24 +00:00
