2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (c) 1988, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)hostname.c 8.1 (Berkeley) 5/31/93
31 * $FreeBSD: src/bin/domainname/domainname.c,v 1.12.2.1 2001/08/01 02:32:16 obrien Exp $
32 * $DragonFly: src/bin/domainname/domainname.c,v 1.7 2005/03/01 23:12:37 liamfoy Exp $
35 #include <sys/param.h>
43 static void usage(void);
46 main(int argc
, char **argv
)
49 char domainname
[MAXHOSTNAMELEN
];
51 while ((ch
= getopt(argc
, argv
, "")) != -1) {
63 if (argv
[0] != NULL
) {
64 size_t len
= strlen(argv
[0]);
65 if (len
> MAXHOSTNAMELEN
)
66 errx(1, "domain name too long");
68 if (setdomainname(*argv
, len
))
69 err(1, "setdomainname");
71 if (getdomainname(domainname
, sizeof(domainname
)))
72 err(1, "getdomainname");
73 domainname
[MAXHOSTNAMELEN
-1] = '\0';
74 printf("%s\n", domainname
);
82 fprintf(stderr
, "usage: domainname [ypdomain]\n");