glibc/signal/sigismem.c

36 lines
1.2 KiB
C

/* Copyright (C) 1991,96,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "sigsetops.h"
/* Return 1 if SIGNO is in SET, 0 if not. */
int
sigismember (set, signo)
const sigset_t *set;
int signo;
{
if (set == NULL || signo <= 0 || signo >= NSIG)
{
__set_errno (EINVAL);
return -1;
}
return __sigismember (set, signo);
}
libc_hidden_def (sigismember)