OpenBSD-4.6/regress/lib/libpthread/pause/pause.c

/*	$OpenBSD: pause.c,v 1.2 2001/11/11 23:26:35 deraadt Exp $	*/
/*
 * Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors, 
 * proven@mit.edu 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Chris Provenzano,
 *	the University of California, Berkeley, and contributors.
 * 4. Neither the name of Chris Provenzano, the University, nor the names of
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO 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 CHRIS PROVENZANO, 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.
 */ 

/*
 * Test pause() 
 */

#include <stdio.h>
#include <signal.h>
#include <string.h>
#include <unistd.h>
#include "test.h"

int gotsig = 0;

void
handler(sig) 
	int sig;
{
	int save_errno = errno;
	char buf[8192];

	snprintf(buf, sizeof buf, "%s\n", strsignal(sig));
	write(STDOUT_FILENO, buf, strlen(buf));
	errno = save_errno;
}

int
main()
{
	sigset_t all;
	pid_t self;

	ASSERT(signal(SIGHUP, handler) != SIG_ERR);
	CHECKe(self = getpid());
	CHECKe(sigemptyset(&all));
	CHECKe(sigaddset(&all, SIGHUP));
	CHECKe(sigprocmask(SIG_BLOCK, &all, NULL));
	CHECKe(kill(self, SIGHUP));
	CHECKe(pause());
	SUCCEED;
}