1 /*	$NetBSD: get_default_realm.c,v 1.1.1.1 2011/04/13 18:15:33 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 - 2001, 2004 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 "krb5_locl.h"
37 
38 /*
39  * Return a NULL-terminated list of default realms in `realms'.
40  * Free this memory with krb5_free_host_realm.
41  */
42 
43 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
44 krb5_get_default_realms (krb5_context context,
45 			 krb5_realm **realms)
46 {
47     if (context->default_realms == NULL) {
48 	krb5_error_code ret = krb5_set_default_realm (context, NULL);
49 	if (ret)
50 	    return KRB5_CONFIG_NODEFREALM;
51     }
52 
53     return krb5_copy_host_realm (context,
54 				 context->default_realms,
55 				 realms);
56 }
57 
58 /*
59  * Return the first default realm.  For compatibility.
60  */
61 
62 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
63 krb5_get_default_realm(krb5_context context,
64 		       krb5_realm *realm)
65 {
66     krb5_error_code ret;
67     char *res;
68 
69     if (context->default_realms == NULL
70 	|| context->default_realms[0] == NULL) {
71 	krb5_clear_error_message(context);
72 	ret = krb5_set_default_realm (context, NULL);
73 	if (ret)
74 	    return ret;
75     }
76 
77     res = strdup (context->default_realms[0]);
78     if (res == NULL) {
79 	krb5_set_error_message(context, ENOMEM,
80 			       N_("malloc: out of memory", ""));
81 	return ENOMEM;
82     }
83     *realm = res;
84     return 0;
85 }
86