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 1997 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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*LINTLIBRARY*/
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate #include <sys/types.h>
45*0Sstevel@tonic-gate #include <sys/utsname.h>
46*0Sstevel@tonic-gate #include <sys/systeminfo.h>
47*0Sstevel@tonic-gate #include <unistd.h>
48*0Sstevel@tonic-gate #include <errno.h>
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate int
gethostname(char * name,int namelen)51*0Sstevel@tonic-gate gethostname(char *name, int namelen)
52*0Sstevel@tonic-gate {
53*0Sstevel@tonic-gate int error;
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate error = sysinfo(SI_HOSTNAME, name, namelen);
56*0Sstevel@tonic-gate /*
57*0Sstevel@tonic-gate * error > 0 ==> number of bytes to hold name
58*0Sstevel@tonic-gate * and is discarded since gethostname only
59*0Sstevel@tonic-gate * cares if it succeeded or failed
60*0Sstevel@tonic-gate */
61*0Sstevel@tonic-gate return (error == -1 ? -1 : 0);
62*0Sstevel@tonic-gate }
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate int
sethostname(char * name,int namelen)65*0Sstevel@tonic-gate sethostname(char *name, int namelen)
66*0Sstevel@tonic-gate {
67*0Sstevel@tonic-gate int error;
68*0Sstevel@tonic-gate
69*0Sstevel@tonic-gate /*
70*0Sstevel@tonic-gate * Check if superuser
71*0Sstevel@tonic-gate */
72*0Sstevel@tonic-gate if (getuid()) {
73*0Sstevel@tonic-gate errno = EPERM;
74*0Sstevel@tonic-gate return (-1);
75*0Sstevel@tonic-gate }
76*0Sstevel@tonic-gate error = sysinfo(SI_SET_HOSTNAME, name, namelen);
77*0Sstevel@tonic-gate return (error == -1 ? -1 : 0);
78*0Sstevel@tonic-gate }
79