1 /* 2 * Copyright (c) 1999 - 2001 Kungliga Tekniska H�gskolan 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 RCSID("$Id: copy_host_realm.c 22057 2007-11-11 15:13:13Z lha $"); 37 38 /** 39 * Copy the list of realms from `from' to `to'. 40 * 41 * @param context Kerberos 5 context. 42 * @param from list of realms to copy from. 43 * @param to list of realms to copy to, free list of krb5_free_host_realm(). 44 * 45 * @return Returns 0 to indicate success. Otherwise an kerberos et 46 * error code is returned, see krb5_get_error_message(). 47 * 48 * @ingroup krb5 49 */ 50 51 krb5_error_code KRB5_LIB_FUNCTION 52 krb5_copy_host_realm(krb5_context context, 53 const krb5_realm *from, 54 krb5_realm **to) 55 { 56 int n, i; 57 const krb5_realm *p; 58 59 for (n = 0, p = from; *p != NULL; ++p) 60 ++n; 61 ++n; 62 *to = malloc (n * sizeof(**to)); 63 if (*to == NULL) { 64 krb5_set_error_string (context, "malloc: out of memory"); 65 return ENOMEM; 66 } 67 for (i = 0; i < n; ++i) 68 (*to)[i] = NULL; 69 for (i = 0, p = from; *p != NULL; ++p, ++i) { 70 (*to)[i] = strdup(*p); 71 if ((*to)[i] == NULL) { 72 krb5_free_host_realm (context, *to); 73 krb5_set_error_string (context, "malloc: out of memory"); 74 return ENOMEM; 75 } 76 } 77 return 0; 78 } 79