1/*-
2 * Copyright (c) 2009, Sun Microsystems, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * - Redistributions of source code must retain the above copyright notice,
8 *   this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 *   this list of conditions and the following disclaimer in the documentation
11 *   and/or other materials provided with the distribution.
12 * - Neither the name of Sun Microsystems, Inc. nor the names of its
13 *   contributors may be used to endorse or promote products derived
14 *   from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#if defined(LIBC_SCCS) && !defined(lint)
30static char sccsid[] = "@(#)rpcdname.c 1.7 91/03/11 Copyr 1989 Sun Micro";
31#endif
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35/*
36 * rpcdname.c
37 * Gets the default domain name
38 */
39
40#include "namespace.h"
41#include <stdlib.h>
42#include <unistd.h>
43#include <string.h>
44#include "un-namespace.h"
45
46static char *default_domain;
47
48static char *
49get_default_domain(void)
50{
51	char temp[256];
52
53	if (default_domain != NULL)
54		return (default_domain);
55	if (getdomainname(temp, sizeof(temp)) < 0)
56		return (0);
57	if ((int) strlen(temp) > 0) {
58		default_domain = malloc((strlen(temp) + (unsigned)1));
59		if (default_domain == NULL)
60			return (0);
61		(void) strcpy(default_domain, temp);
62		return (default_domain);
63	}
64	return (0);
65}
66
67/*
68 * This is a wrapper for the system call getdomainname which returns a
69 * ypclnt.h error code in the failure case.  It also checks to see that
70 * the domain name is non-null, knowing that the null string is going to
71 * get rejected elsewhere in the NIS client package.
72 */
73int
74__rpc_get_default_domain(char **domain)
75{
76	if ((*domain = get_default_domain()) != NULL)
77		return (0);
78	return (-1);
79}
80