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      1 /*	$NetBSD: get_default_realm.c,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 - 2001, 2004 Kungliga Tekniska Hgskolan
      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 	return krb5_enomem(context);
     80     *realm = res;
     81     return 0;
     82 }
     83