7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe/*
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * CDDL HEADER START
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe *
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * The contents of this file are subject to the terms of the
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * Common Development and Distribution License (the "License").
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * You may not use this file except in compliance with the License.
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe *
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * or http://www.opensolaris.org/os/licensing.
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * See the License for the specific language governing permissions
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * and limitations under the License.
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe *
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * When distributing Covered Code, include this CDDL HEADER in each
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * If applicable, add the following below this CDDL HEADER, with the
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * fields enclosed by brackets "[]" replaced with your own identifying
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * information: Portions Copyright [yyyy] [name of copyright owner]
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe *
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * CDDL HEADER END
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe/*
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * University Copyright- Copyright (c) 1982, 1986, 1988
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * The Regents of the University of California
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * All Rights Reserved
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe *
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * University Acknowledgment- Portions of this document are derived from
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * software developed by the University of California, Berkeley, and its
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * contributors.
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe/*
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * Use is subject to license terms.
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe */
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel/* Portions Copyright 2007 Jeremy Teo */
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel/* Portions Copyright 2006 Stephen P. Potter */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#include <unistd.h>
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#include <stdio.h>
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#include <string.h>
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#include <locale.h>
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#include <libgen.h>
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#include <stdlib.h>
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#include <errno.h>
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel#include <netdb.h>
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#ifndef TEXT_DOMAIN /* should be defined by cc -D */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#define TEXT_DOMAIN "SYS_TEST" /* use this only if it wasn't */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe#endif
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxestatic char *progname;
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxestatic void
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxeusage(void)
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe{
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen (void) fprintf(stderr, gettext("usage: %s [-s] [system_name]\n"),
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen basename(progname));
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe exit(1);
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe}
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxeint
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxemain(int argc, char *argv[])
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe{
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe char *nodename = NULL;
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel char c_hostname[MAXHOSTNAMELEN];
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe int optlet;
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen int sflag = 0;
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen char *optstring = "s";
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe (void) setlocale(LC_ALL, "");
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe (void) textdomain(TEXT_DOMAIN);
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe progname = argv[0];
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe opterr = 0;
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe while ((optlet = getopt(argc, argv, optstring)) != -1) {
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe switch (optlet) {
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen case 's':
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen sflag = 1;
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen break;
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe case '?':
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe usage();
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen break;
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe }
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe }
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe /*
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen * if called with no arguments, just print out the hostname/nodename
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe if (argc <= optind) {
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel if (gethostname(c_hostname, sizeof (c_hostname)) < 0) {
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe (void) fprintf(stderr,
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe gettext("%s: unable to obtain hostname\n"),
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe basename(progname));
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe exit(1);
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel } else {
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen if (sflag)
5bebc427c96eee7cdbec9df37a3a6fdead337abaLauri Tirkkonen c_hostname[strcspn(c_hostname, ".")] = '\0';
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel (void) fprintf(stdout, "%s\n", c_hostname);
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe }
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe } else {
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe /*
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * if called with an argument,
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe * we have to try to set the new hostname/nodename
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe if (argc > optind + 1)
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe usage(); /* too many arguments */
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe nodename = argv[optind];
20d159bb22d487d2a4feb5d283a2b7d832bff8d5stevel if (sethostname(nodename, strlen(nodename)) < 0) {
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe int err = errno;
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe (void) fprintf(stderr,
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe gettext("%s: error in setting name: %s\n"),
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe basename(progname), strerror(err));
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe exit(1);
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe }
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe }
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe return (0);
7bdc4eabef617ba1306a26f52b0979229093d7b5esaxe}