1 /* $NetBSD: gethostname.c,v 1.1.1.1 2011/04/13 18:15:41 elric Exp $ */
2
3 /*
4 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <config.h>
37 #include <krb5/roken.h>
38
39 #ifndef HAVE_GETHOSTNAME
40
41 #ifdef HAVE_SYS_UTSNAME_H
42 #include <sys/utsname.h>
43 #endif
44
45 /*
46 * Return the local host's name in "name", up to "namelen" characters.
47 * "name" will be null-terminated if "namelen" is big enough.
48 * The return code is 0 on success, -1 on failure. (The calling
49 * interface is identical to gethostname(2).)
50 */
51
52 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
gethostname(char * name,int namelen)53 gethostname(char *name, int namelen)
54 {
55 #if defined(HAVE_UNAME)
56 {
57 struct utsname utsname;
58 int ret;
59
60 ret = uname (&utsname);
61 if (ret < 0)
62 return ret;
63 strlcpy (name, utsname.nodename, namelen);
64 return 0;
65 }
66 #else
67 strlcpy (name, "some.random.host", namelen);
68 return 0;
69 #endif
70 }
71
72 #endif /* GETHOSTNAME */
73