Line data    Source code

       1             : /*
       2             :  * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
       3             :  * (Royal Institute of Technology, Stockholm, Sweden).
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions
       8             :  * are met:
       9             :  *
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  *
      13             :  * 2. Redistributions in binary form must reproduce the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer in the
      15             :  *    documentation and/or other materials provided with the distribution.
      16             :  *
      17             :  * 3. Neither the name of the Institute nor the names of its contributors
      18             :  *    may be used to endorse or promote products derived from this software
      19             :  *    without specific prior written permission.
      20             :  *
      21             :  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
      22             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
      25             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31             :  * SUCH DAMAGE.
      32             :  */
      33             : 
      34             : #include "krb5_locl.h"
      35             : 
      36             : /*
      37             :  * Convert the simple string `s' into a NULL-terminated and freshly allocated
      38             :  * list in `list'.  Return an error code.
      39             :  */
      40             : 
      41             : static krb5_error_code
      42      723493 : string_to_list (krb5_context context, const char *s, krb5_realm **list)
      43             : {
      44             : 
      45      723493 :     *list = malloc (2 * sizeof(**list));
      46      723493 :     if (*list == NULL) {
      47           0 :         krb5_set_error_message(context, ENOMEM,
      48           0 :                                N_("malloc: out of memory", ""));
      49           0 :         return ENOMEM;
      50             :     }
      51      723493 :     (*list)[0] = strdup (s);
      52      723493 :     if ((*list)[0] == NULL) {
      53           0 :         free (*list);
      54           0 :         krb5_set_error_message(context, ENOMEM,
      55           0 :                                N_("malloc: out of memory", ""));
      56           0 :         return ENOMEM;
      57             :     }
      58      723493 :     (*list)[1] = NULL;
      59      723493 :     return 0;
      60             : }
      61             : 
      62             : /*
      63             :  * Set the knowledge of the default realm(s) in `context'.
      64             :  * If realm != NULL, that's the new default realm.
      65             :  * Otherwise, the realm(s) are figured out from configuration or DNS.
      66             :  */
      67             : 
      68             : KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
      69      739976 : krb5_set_default_realm(krb5_context context,
      70             :                        const char *realm)
      71             : {
      72      739976 :     krb5_error_code ret = 0;
      73      739976 :     krb5_realm *realms = NULL;
      74             : 
      75      739976 :     if (realm == NULL) {
      76       16483 :         realms = krb5_config_get_strings (context, NULL,
      77             :                                           "libdefaults",
      78             :                                           "default_realm",
      79             :                                           NULL);
      80       16483 :         if (realms == NULL)
      81           0 :             ret = krb5_get_host_realm(context, NULL, &realms);
      82             :     } else {
      83      723493 :         ret = string_to_list (context, realm, &realms);
      84             :     }
      85      739226 :     if (ret)
      86           0 :         return ret;
      87      739976 :     krb5_free_host_realm (context, context->default_realms);
      88      739976 :     context->default_realms = realms;
      89      739976 :     return 0;
      90             : }