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/* $OpenBSD: sigsetops.c,v 1.7 2015/09/12 16:46:12 guenther Exp $ */
/*-
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)sigsetops.c 8.1 (Berkeley) 6/4/93
*/
#define _ANSI_LIBRARY
#include <errno.h>
#include <signal.h>
#undef sigemptyset
#undef sigfillset
#undef sigaddset
#undef sigdelset
#undef sigismember
int
sigemptyset(sigset_t *set)
{
*set = 0;
return (0);
}
DEF_WEAK(sigemptyset);
int
sigfillset(sigset_t *set)
{
*set = ~(sigset_t)0;
return (0);
}
DEF_WEAK(sigfillset);
int
sigaddset(sigset_t *set, int signo)
{
if (signo <= 0 || signo >= NSIG) {
errno = EINVAL;
return -1;
}
*set |= sigmask(signo);
return (0);
}
DEF_WEAK(sigaddset);
int
sigdelset(sigset_t *set, int signo)
{
if (signo <= 0 || signo >= NSIG) {
errno = EINVAL;
return -1;
}
*set &= ~sigmask(signo);
return (0);
}
DEF_WEAK(sigdelset);
int
sigismember(const sigset_t *set, int signo)
{
if (signo <= 0 || signo >= NSIG) {
errno = EINVAL;
return -1;
}
return ((*set & sigmask(signo)) != 0);
}
DEF_WEAK(sigismember);
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