crypto/external/bsd/heimdal/dist/lib/kadm5/randkey_c.c

   1 /*      $NetBSD: randkey_c.c,v 1.1.1.2 2014/04/24 12:45:49 pettai Exp $ */
   2
   3 /*
   4  * Copyright (c) 1997 - 1999 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "kadm5_locl.h"
  37
  38 __RCSID("NetBSD");
  39
  40 kadm5_ret_t
  41 kadm5_c_randkey_principal(void *server_handle,
  42                           krb5_principal princ,
  43                           krb5_keyblock **new_keys,
  44                           int *n_keys)
  45 {
  46     kadm5_client_context *context = server_handle;
  47     kadm5_ret_t ret;
  48     krb5_storage *sp;
  49     unsigned char buf[1024];
  50     int32_t tmp;
  51     krb5_data reply;
  52
  53     ret = _kadm5_connect(server_handle);
  54     if(ret)
  55         return ret;
  56
  57     sp = krb5_storage_from_mem(buf, sizeof(buf));
  58     if (sp == NULL) {
  59         krb5_clear_error_message(context->context);
  60         return ENOMEM;
  61     }
  62     krb5_store_int32(sp, kadm_randkey);
  63     krb5_store_principal(sp, princ);
  64     ret = _kadm5_client_send(context, sp);
  65     krb5_storage_free(sp);
  66     if (ret)
  67         return ret;
  68     ret = _kadm5_client_recv(context, &reply);
  69     if(ret)
  70         return ret;
  71     sp = krb5_storage_from_data(&reply);
  72     if (sp == NULL) {
  73         krb5_clear_error_message(context->context);
  74         krb5_data_free (&reply);
  75         return ENOMEM;
  76     }
  77     krb5_clear_error_message(context->context);
  78     krb5_ret_int32(sp, &tmp);
  79     ret = tmp;
  80     if(ret == 0){
  81         krb5_keyblock *k;
  82         int i;
  83
  84         krb5_ret_int32(sp, &tmp);
  85         k = malloc(tmp * sizeof(*k));
  86         if (k == NULL) {
  87             ret = ENOMEM;
  88             goto out;
  89         }
  90         for(i = 0; i < tmp; i++)
  91             krb5_ret_keyblock(sp, &k[i]);
  92         *n_keys = tmp;
  93         *new_keys = k;
  94     }
  95 out:
  96     krb5_storage_free(sp);
  97     krb5_data_free (&reply);
  98     return ret;
  99 }