glibc/posix/spawnattr_setflags.c
Ulrich Drepper 9ad684229e Update.
* posix/spawn.h [__USE_GNU]: Define POSIX_SPAWN_USEVFORK.
	* posix/spawnattr_setflags.c: Check whether any unknown bit is set
	in FLAGS parameter and fail if this is the case.
	* sysdeps/posix/spawni.c: Use vfork if POSIX_SPAWN_USEVFORK flag is
	set.
2004-09-12 18:05:37 +00:00

44 lines
1.4 KiB
C

/* Copyright (C) 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <spawn.h>
#include <string.h>
#define ALL_FLAGS (POSIX_SPAWN_RESETIDS \
| POSIX_SPAWN_SETPGROUP \
| POSIX_SPAWN_SETSIGDEF \
| POSIX_SPAWN_SETSIGMASK \
| POSIX_SPAWN_SETSCHEDPARAM \
| POSIX_SPAWN_SETSCHEDULER \
| POSIX_SPAWN_USEVFORK)
/* Store flags in the attribute structure. */
int
posix_spawnattr_setflags (posix_spawnattr_t *attr, short int flags)
{
/* Check no invalid bits are set. */
if (flags & ~ALL_FLAGS)
return EINVAL;
/* Store the flag word. */
attr->__flags = flags;
return 0;
}