xref: /src/sys/modules/examples/ping/cmd_ping.c

/*	$NetBSD: cmd_ping.c,v 1.2 2015/05/13 12:13:38 joerg Exp $	*/

/*-
 * Copyright (c) 2015 The NetBSD Foundation, Inc.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include <sys/cdefs.h>
__RCSID("$NetBSD: cmd_ping.c,v 1.2 2015/05/13 12:13:38 joerg Exp $");

#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <unistd.h>

#include "ping.h"

#define _PATH_DEV_PING "/dev/ping"

int main(int argc, char **argv)
{
	int devfd;

	setprogname(argv[0]);

	if ((devfd = open(_PATH_DEV_PING, O_RDWR)) == -1)
		err(EXIT_FAILURE, "Cannot open %s", _PATH_DEV_PING);

	if (ioctl(devfd, CMD_PING) == -1)
		err(EXIT_FAILURE, "ping failed");

	printf("%s: ping sent successfully\n", getprogname());

	if (close(devfd) == -1)
		err(EXIT_FAILURE, "Cannot close %s", _PATH_DEV_PING);

	return EXIT_SUCCESS;
}