posix/spawnattr_setflags.c

   1 /* Copyright (C) 2000, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <spawn.h>
  20 #include <string.h>
  21
  22 #define ALL_FLAGS (POSIX_SPAWN_RESETIDS                                       \
  23                    | POSIX_SPAWN_SETPGROUP                                    \
  24                    | POSIX_SPAWN_SETSIGDEF                                    \
  25                    | POSIX_SPAWN_SETSIGMASK                                   \
  26                    | POSIX_SPAWN_SETSCHEDPARAM                                \
  27                    | POSIX_SPAWN_SETSCHEDULER                                 \
  28                    | POSIX_SPAWN_USEVFORK)
  29
  30 /* Store flags in the attribute structure.  */
  31 int
  32 posix_spawnattr_setflags (posix_spawnattr_t *attr, short int flags)
  33 {
  34   /* Check no invalid bits are set.  */
  35   if (flags & ~ALL_FLAGS)
  36     return EINVAL;
  37
  38   /* Store the flag word.  */
  39   attr->__flags = flags;
  40
  41   return 0;
  42 }