/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2017 Li-Wen Hsu <lwhsu@FreeBSD.org>
 */

#include <signal.h>
#include <stdio.h>
#include <unistd.h>

int
main(void)
{

    sigset_t set;
    siginfo_t info;
    struct timespec timeout;

    (void)sigemptyset(&set);
    (void)sigaddset(&set, SIGHUP);
    timeout.tv_sec = 1;
    timeout.tv_nsec = 0;

    for (;;)
        (void)sigtimedwait(&set, &info, &timeout);

    return (0);
}