/* $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 #include #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);