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glibc  2.9
spawnattr_setflags.c
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00001 /* Copyright (C) 2000, 2004 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <errno.h>
00020 #include <spawn.h>
00021 #include <string.h>
00022 
00023 #define ALL_FLAGS (POSIX_SPAWN_RESETIDS                                     \
00024                  | POSIX_SPAWN_SETPGROUP                             \
00025                  | POSIX_SPAWN_SETSIGDEF                             \
00026                  | POSIX_SPAWN_SETSIGMASK                            \
00027                  | POSIX_SPAWN_SETSCHEDPARAM                                \
00028                  | POSIX_SPAWN_SETSCHEDULER                                 \
00029                  | POSIX_SPAWN_USEVFORK)
00030 
00031 /* Store flags in the attribute structure.  */
00032 int
00033 posix_spawnattr_setflags (posix_spawnattr_t *attr, short int flags)
00034 {
00035   /* Check no invalid bits are set.  */
00036   if (flags & ~ALL_FLAGS)
00037     return EINVAL;
00038 
00039   /* Store the flag word.  */
00040   attr->__flags = flags;
00041 
00042   return 0;
00043 }