/*	$OpenBSD: sigaction.c,v 1.3 1999/06/27 08:14:21 millert Exp $	*//**************************************************************************** * Copyright (c) 1998 Free Software Foundation, Inc.                        * *                                                                          * * Permission is hereby granted, free of charge, to any person obtaining a  * * copy of this software and associated documentation files (the            * * "Software"), to deal in the Software without restriction, including      * * without limitation the rights to use, copy, modify, merge, publish,      * * distribute, distribute with modifications, sublicense, and/or sell       * * copies of the Software, and to permit persons to whom the Software is    * * furnished to do so, subject to the following conditions:                 * *                                                                          * * The above copyright notice and this permission notice shall be included  * * in all copies or substantial portions of the Software.                   * *                                                                          * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    * * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               * *                                                                          * * Except as contained in this notice, the name(s) of the above copyright   * * holders shall not be used in advertising or otherwise to promote the     * * sale, use or other dealings in this Software without prior written       * * authorization.                                                           * ****************************************************************************//**************************************************************************** *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               * *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         * ****************************************************************************/#include "config.h"#include <signal.h>#include "sigact.h"/* This file provides sigaction() emulation using sigvec() *//* Use only if this is non POSIX system */#if !HAVE_SIGACTION && HAVE_SIGVECintsigaction(int sig, struct sigaction *sigact, struct sigaction *osigact){	return sigvec(sig, &(sigact->sv), &(osigact->sv));}intsigemptyset (sigset_t * mask){	*mask = 0;	return 0;}intsigprocmask (int mode, sigset_t * mask, sigset_t * omask){	sigset_t current = sigsetmask(0);	if (omask) *omask = current;	if (mode==SIG_BLOCK)		current |= *mask;	else if (mode==SIG_UNBLOCK)		current &= ~*mask;	else if (mode==SIG_SETMASK)	current = *mask;	sigsetmask(current);	return 0;}intsigsuspend (sigset_t * mask){	return sigpause(*mask);}intsigdelset (sigset_t * mask, int sig){	*mask &= ~sigmask(sig);	return 0;}intsigaddset (sigset_t * mask, int sig){	*mask |= sigmask(sig);	return 0;}intsigismember (sigset_t * mask, int sig){	return (*mask & sigmask(sig)) != 0;}#endif