signal/sigfillset.c

   1 /* Copyright (C) 1991,96,97,2002,2003,2004 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <signal.h>
  21 #include <string.h>
  22
  23 /* Set all signals in SET.  */
  24 int
  25 sigfillset (set)
  26      sigset_t *set;
  27 {
  28   if (set == NULL)
  29     {
  30       __set_errno (EINVAL);
  31       return -1;
  32     }
  33
  34   memset (set, 0xff, sizeof (sigset_t));
  35
  36   /* If the implementation uses a cancellation signal don't set the bit.  */
  37 #ifdef SIGCANCEL
  38   __sigdelset (set, SIGCANCEL);
  39 #endif
  40   /* Likewise for the signal to implement setxid.  */
  41 #ifdef SIGSETXID
  42   __sigdelset (set, SIGSETXID);
  43 #endif
  44
  45   return 0;
  46 }
  47 libc_hidden_def (sigfillset)