Line data    Source code

       1             : /*
       2             :  * Copyright (c) 1999 - 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             :  * Copy the list of realms from `from' to `to'.
      38             :  *
      39             :  * @param context Kerberos 5 context.
      40             :  * @param from list of realms to copy from.
      41             :  * @param to list of realms to copy to, free list of krb5_free_host_realm().
      42             :  *
      43             :  * @return Returns 0 to indicate success. Otherwise an kerberos et
      44             :  * error code is returned, see krb5_get_error_message().
      45             :  *
      46             :  * @ingroup krb5
      47             :  */
      48             : 
      49             : KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
      50       21201 : krb5_copy_host_realm(krb5_context context,
      51             :                      const krb5_realm *from,
      52             :                      krb5_realm **to)
      53             : {
      54        1035 :     unsigned int n, i;
      55        1035 :     const krb5_realm *p;
      56             : 
      57       42402 :     for (n = 1, p = from; *p != NULL; ++p)
      58       21201 :         ++n;
      59             : 
      60       21201 :     *to = calloc (n, sizeof(**to));
      61       21201 :     if (*to == NULL)
      62           0 :         return krb5_enomem(context);
      63             : 
      64       42402 :     for (i = 0, p = from; *p != NULL; ++p, ++i) {
      65       21201 :         (*to)[i] = strdup(*p);
      66       21201 :         if ((*to)[i] == NULL) {
      67           0 :             krb5_free_host_realm (context, *to);
      68           0 :             return krb5_enomem(context);
      69             :         }
      70             :     }
      71       20166 :     return 0;
      72             : }