lib/spawnattr_setflags.c

   1 /* Copyright (C) 2000, 2004, 2009-2018 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #include <config.h>
  18
  19 /* Specification.  */
  20 #include <spawn.h>
  21
  22 #include <errno.h>
  23 #include <string.h>
  24
  25 #define ALL_FLAGS (POSIX_SPAWN_RESETIDS                                       \
  26                    | POSIX_SPAWN_SETPGROUP                                    \
  27                    | POSIX_SPAWN_SETSIGDEF                                    \
  28                    | POSIX_SPAWN_SETSIGMASK                                   \
  29                    | POSIX_SPAWN_SETSCHEDPARAM                                \
  30                    | POSIX_SPAWN_SETSCHEDULER                                 \
  31                    | POSIX_SPAWN_USEVFORK)
  32
  33 /* Store flags in the attribute structure.  */
  34 int
  35 posix_spawnattr_setflags (posix_spawnattr_t *attr, short int flags)
  36 {
  37   /* Check no invalid bits are set.  */
  38   if (flags & ~ALL_FLAGS)
  39     return EINVAL;
  40
  41   /* Store the flag word.  */
  42   attr->_flags = flags;
  43
  44   return 0;
  45 }