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)
30 static 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
46 static char *default_domain = 0;
47
48 static char *
get_default_domain()49 get_default_domain()
50 {
51 char temp[256];
52
53 if (default_domain)
54 return (default_domain);
55 if (getdomainname(temp, sizeof(temp)) < 0)
56 return (0);
57 if ((int) strlen(temp) > 0) {
58 default_domain = (char *)malloc((strlen(temp)+(unsigned)1));
59 if (default_domain == 0)
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 */
73 int
__rpc_get_default_domain(domain)74 __rpc_get_default_domain(domain)
75 char **domain;
76 {
77 if ((*domain = get_default_domain()) != 0)
78 return (0);
79 return (-1);
80 }
81