rpcdname.c revision 92990 
1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part.  Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user or with the express written consent of
8 * Sun Microsystems, Inc.
9 *
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 *
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
17 *
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
21 *
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
25 *
26 * Sun Microsystems, Inc.
27 * 2550 Garcia Avenue
28 * Mountain View, California  94043
29 */
30#if !defined(lint) && defined(SCCSIDS)
31static char sccsid[] = "@(#)rpcdname.c 1.7 91/03/11 Copyr 1989 Sun Micro";
32#endif
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/lib/libc/rpc/rpcdname.c 92990 2002-03-22 23:18:37Z obrien $");
35
36/*
37 * rpcdname.c
38 * Gets the default domain name
39 */
40
41#include "namespace.h"
42#include <stdlib.h>
43#include <unistd.h>
44#include <string.h>
45#include "un-namespace.h"
46
47static char *default_domain = 0;
48
49static char *
50get_default_domain()
51{
52	char temp[256];
53
54	if (default_domain)
55		return (default_domain);
56	if (getdomainname(temp, sizeof(temp)) < 0)
57		return (0);
58	if ((int) strlen(temp) > 0) {
59		default_domain = (char *)malloc((strlen(temp)+(unsigned)1));
60		if (default_domain == 0)
61			return (0);
62		(void) strcpy(default_domain, temp);
63		return (default_domain);
64	}
65	return (0);
66}
67
68/*
69 * This is a wrapper for the system call getdomainname which returns a
70 * ypclnt.h error code in the failure case.  It also checks to see that
71 * the domain name is non-null, knowing that the null string is going to
72 * get rejected elsewhere in the NIS client package.
73 */
74int
75__rpc_get_default_domain(domain)
76	char **domain;
77{
78	if ((*domain = get_default_domain()) != 0)
79		return (0);
80	return (-1);
81}
82