1 /* $NetBSD: cmd_ping.c,v 1.2 2015/05/13 12:13:38 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 2015 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __RCSID("$NetBSD: cmd_ping.c,v 1.2 2015/05/13 12:13:38 joerg Exp $"); 31 32 #include <err.h> 33 #include <fcntl.h> 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <sys/ioctl.h> 37 #include <unistd.h> 38 39 #include "ping.h" 40 41 #define _PATH_DEV_PING "/dev/ping" 42 43 int main(int argc, char **argv) 44 { 45 int devfd; 46 47 setprogname(argv[0]); 48 49 if ((devfd = open(_PATH_DEV_PING, O_RDWR)) == -1) 50 err(EXIT_FAILURE, "Cannot open %s", _PATH_DEV_PING); 51 52 if (ioctl(devfd, CMD_PING) == -1) 53 err(EXIT_FAILURE, "ping failed"); 54 55 printf("%s: ping sent successfully\n", getprogname()); 56 57 if (close(devfd) == -1) 58 err(EXIT_FAILURE, "Cannot close %s", _PATH_DEV_PING); 59 60 return EXIT_SUCCESS; 61 } 62