/* * Copyright (c) 1997 - 2001 Kungliga Tekniska H�gskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "krb5_locl.h" RCSID("$Id: set_default_realm.c 23309 2008-06-23 03:30:41Z lha $"); /* * Convert the simple string `s' into a NULL-terminated and freshly allocated * list in `list'. Return an error code. */ static krb5_error_code string_to_list (krb5_context context, const char *s, krb5_realm **list) { *list = malloc (2 * sizeof(**list)); if (*list == NULL) { krb5_set_error_message(context, ENOMEM, "malloc: out of memory"); return ENOMEM; } (*list)[0] = strdup (s); if ((*list)[0] == NULL) { free (*list); krb5_set_error_message(context, ENOMEM, "malloc: out of memory"); return ENOMEM; } (*list)[1] = NULL; return 0; } /* * Set the knowledge of the default realm(s) in `context'. * If realm != NULL, that's the new default realm. * Otherwise, the realm(s) are figured out from configuration or DNS. */ krb5_error_code KRB5_LIB_FUNCTION krb5_set_default_realm(krb5_context context, const char *realm) { krb5_error_code ret = 0; krb5_realm *realms = NULL; if (realm == NULL) { realms = krb5_config_get_strings (context, NULL, "libdefaults", "default_realm", NULL); if (realms == NULL) ret = krb5_get_host_realm(context, NULL, &realms); } else { ret = string_to_list (context, realm, &realms); } if (ret) return ret; krb5_free_host_realm (context, context->default_realms); context->default_realms = realms; return 0; }