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glibc  2.9
sigempty.c
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00001 /* Copyright (C) 1991,96,97,2002 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 <signal.h>
00021 #include <string.h>
00022 
00023 /* Clear all signals from SET.  */
00024 int
00025 sigemptyset (set)
00026      sigset_t *set;
00027 {
00028   if (set == NULL)
00029     {
00030       __set_errno (EINVAL);
00031       return -1;
00032     }
00033 
00034   memset (set, 0, sizeof (sigset_t));
00035 
00036   return 0;
00037 }
00038 libc_hidden_def (sigemptyset)