1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate /*
31*7c478bd9Sstevel@tonic-gate  * University Copyright- Copyright (c) 1982, 1986, 1988
32*7c478bd9Sstevel@tonic-gate  * The Regents of the University of California
33*7c478bd9Sstevel@tonic-gate  * All Rights Reserved
34*7c478bd9Sstevel@tonic-gate  *
35*7c478bd9Sstevel@tonic-gate  * University Acknowledgment- Portions of this document are derived from
36*7c478bd9Sstevel@tonic-gate  * software developed by the University of California, Berkeley, and its
37*7c478bd9Sstevel@tonic-gate  * contributors.
38*7c478bd9Sstevel@tonic-gate  */
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
41*7c478bd9Sstevel@tonic-gate 
42*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/
43*7c478bd9Sstevel@tonic-gate 
44*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
45*7c478bd9Sstevel@tonic-gate #include <sys/utsname.h>
46*7c478bd9Sstevel@tonic-gate #include <sys/systeminfo.h>
47*7c478bd9Sstevel@tonic-gate #include <unistd.h>
48*7c478bd9Sstevel@tonic-gate #include <errno.h>
49*7c478bd9Sstevel@tonic-gate 
50*7c478bd9Sstevel@tonic-gate int
gethostname(char * name,int namelen)51*7c478bd9Sstevel@tonic-gate gethostname(char *name, int namelen)
52*7c478bd9Sstevel@tonic-gate {
53*7c478bd9Sstevel@tonic-gate 	int	error;
54*7c478bd9Sstevel@tonic-gate 
55*7c478bd9Sstevel@tonic-gate 	error = sysinfo(SI_HOSTNAME, name, namelen);
56*7c478bd9Sstevel@tonic-gate 	/*
57*7c478bd9Sstevel@tonic-gate 	 * error > 0 ==> number of bytes to hold name
58*7c478bd9Sstevel@tonic-gate 	 * and is discarded since gethostname only
59*7c478bd9Sstevel@tonic-gate 	 * cares if it succeeded or failed
60*7c478bd9Sstevel@tonic-gate 	 */
61*7c478bd9Sstevel@tonic-gate 	return (error == -1 ? -1 : 0);
62*7c478bd9Sstevel@tonic-gate }
63*7c478bd9Sstevel@tonic-gate 
64*7c478bd9Sstevel@tonic-gate int
sethostname(char * name,int namelen)65*7c478bd9Sstevel@tonic-gate sethostname(char *name, int namelen)
66*7c478bd9Sstevel@tonic-gate {
67*7c478bd9Sstevel@tonic-gate 	int	error;
68*7c478bd9Sstevel@tonic-gate 
69*7c478bd9Sstevel@tonic-gate 	/*
70*7c478bd9Sstevel@tonic-gate 	 * Check if superuser
71*7c478bd9Sstevel@tonic-gate 	 */
72*7c478bd9Sstevel@tonic-gate 	if (getuid()) {
73*7c478bd9Sstevel@tonic-gate 		errno = EPERM;
74*7c478bd9Sstevel@tonic-gate 		return (-1);
75*7c478bd9Sstevel@tonic-gate 	}
76*7c478bd9Sstevel@tonic-gate 	error = sysinfo(SI_SET_HOSTNAME, name, namelen);
77*7c478bd9Sstevel@tonic-gate 	return (error == -1 ? -1 : 0);
78*7c478bd9Sstevel@tonic-gate }
79