1/* 2 * Copyright (c) 1997 - 2001, 2004 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 36krb5_error_code 37_krb5_array_to_realms(krb5_context context, heim_array_t array, krb5_realm **realms) 38{ 39 size_t n, len; 40 41 len = heim_array_get_length(array); 42 43 *realms = calloc(len + 1, sizeof((*realms)[0])); 44 for (n = 0; n < len; n++) { 45 heim_string_t s = heim_array_copy_value(array, n); 46 if (s) { 47 (*realms)[n] = heim_string_copy_utf8(s); 48 heim_release(s); 49 } 50 if ((*realms)[n] == NULL) { 51 krb5_free_host_realm(context, *realms); 52 krb5_set_error_message(context, ENOMEM, 53 N_("malloc: out of memory", "")); 54 *realms = NULL; 55 return ENOMEM; 56 } 57 } 58 (*realms)[n] = NULL; 59 60 return 0; 61} 62 63/* 64 * Get the list of default realms and make sure there is at least 65 * one realm configured. 66 */ 67 68static krb5_error_code 69get_default_realms(krb5_context context) 70{ 71 if (context->default_realms == NULL || 72 heim_array_get_length(context->default_realms) == 0) 73 { 74 krb5_error_code ret = krb5_set_default_realm(context, NULL); 75 if (ret) 76 return KRB5_CONFIG_NODEFREALM; 77 } 78 79 if (context->default_realms == NULL || 80 heim_array_get_length(context->default_realms) == 0) 81 { 82 krb5_set_error_message(context, KRB5_CONFIG_NODEFREALM, 83 N_("No default realm found", "")); 84 return KRB5_CONFIG_NODEFREALM; 85 } 86 87 return 0; 88} 89 90/* 91 * Return a NULL-terminated list of default realms in `realms'. 92 * Free this memory with krb5_free_host_realm. 93 */ 94 95KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL 96krb5_get_default_realms (krb5_context context, 97 krb5_realm **realms) 98{ 99 krb5_error_code ret; 100 101 ret = get_default_realms(context); 102 if (ret) 103 return ret; 104 105 return _krb5_array_to_realms(context, context->default_realms, realms); 106} 107 108/* 109 * Return the first default realm. For compatibility. 110 */ 111 112KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL 113krb5_get_default_realm(krb5_context context, 114 krb5_realm *realm) 115{ 116 krb5_error_code ret; 117 heim_string_t s; 118 119 ret = get_default_realms(context); 120 if (ret) 121 return ret; 122 123 s = heim_array_copy_value(context->default_realms, 0); 124 if (s) { 125 *realm = heim_string_copy_utf8(s); 126 heim_release(s); 127 } 128 if (s == NULL || *realm == NULL) { 129 krb5_set_error_message(context, ENOMEM, 130 N_("malloc: out of memory", "")); 131 return ENOMEM; 132 } 133 134 return 0; 135} 136