xref: /illumos-gate/usr/src/lib/libnsl/rpc/gethostname.c (revision 598f4ceed9327d2d6c2325dd67cae3aa06f7fea6)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 
23 /*
24  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
29 /* All Rights Reserved */
30 /*
31  * Portions of this source code were derived from Berkeley
32  * 4.3 BSD under license from the Regents of the University of
33  * California.
34  */
35 
36 #pragma ident	"%Z%%M%	%I%	%E% SMI"
37 
38 #include "mt.h"
39 #include <sys/utsname.h>
40 #include <sys/types.h>
41 #include <string.h>
42 
43 /*
44  * gethostname bsd compatibility
45  */
46 int
47 gethostname(char *hname, int hlen)
48 {
49 	struct utsname u;
50 
51 #if defined(__i386) && !defined(__amd64)
52 	if (_nuname(&u) < 0) {
53 #else
54 	if (_uname(&u) < 0) {
55 #endif /* __i386 */
56 		return (-1);
57 	}
58 	(void) strncpy(hname, u.nodename, hlen);
59 	return (0);
60 }
61