xref: /onnv-gate/usr/src/lib/libfsmgt/common/sys_info.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <netdb.h>
30*0Sstevel@tonic-gate #include <unistd.h>
31*0Sstevel@tonic-gate #include <errno.h>
32*0Sstevel@tonic-gate #include <strings.h>
33*0Sstevel@tonic-gate #include "libfsmgt.h"
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate  * Public methods
37*0Sstevel@tonic-gate  */
38*0Sstevel@tonic-gate 
sys_get_hostname(int * errp)39*0Sstevel@tonic-gate char *sys_get_hostname(int *errp) {
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate 	char	host[MAXHOSTNAMELEN + 1];
42*0Sstevel@tonic-gate 	char	*ret_val;
43*0Sstevel@tonic-gate 
44*0Sstevel@tonic-gate 	*errp = 0;
45*0Sstevel@tonic-gate 	if (gethostname(host, sizeof (host)) == -1) {
46*0Sstevel@tonic-gate 		*errp = errno;
47*0Sstevel@tonic-gate 		return (NULL);
48*0Sstevel@tonic-gate 	}
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate 	ret_val = strdup(host);
51*0Sstevel@tonic-gate 	if (ret_val == NULL) {
52*0Sstevel@tonic-gate 		*errp = errno;
53*0Sstevel@tonic-gate 		return (NULL);
54*0Sstevel@tonic-gate 	}
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate 	/*
57*0Sstevel@tonic-gate 	 * Note: The space allocated for the return value must be freed by the
58*0Sstevel@tonic-gate 	 * caller using free().
59*0Sstevel@tonic-gate 	 */
60*0Sstevel@tonic-gate 	return (ret_val);
61*0Sstevel@tonic-gate } /* sys_get_hostname */
62