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

   1 /*
   2  * Copyright (c) 1997 - 1999 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 "kadm5_locl.h"
  35
  36 __RCSID("$Heimdal: randkey_c.c 16662 2006-01-25 12:53:09Z lha $"
  37         "$NetBSD$");
  38
  39 kadm5_ret_t
  40 kadm5_c_randkey_principal(void *server_handle,
  41                           krb5_principal princ,
  42                           krb5_keyblock **new_keys,
  43                           int *n_keys)
  44 {
  45     kadm5_client_context *context = server_handle;
  46     kadm5_ret_t ret;
  47     krb5_storage *sp;
  48     unsigned char buf[1024];
  49     int32_t tmp;
  50     krb5_data reply;
  51
  52     ret = _kadm5_connect(server_handle);
  53     if(ret)
  54         return ret;
  55
  56     sp = krb5_storage_from_mem(buf, sizeof(buf));
  57     if (sp == NULL) {
  58         krb5_clear_error_string(context->context);
  59         return ENOMEM;
  60     }
  61     krb5_store_int32(sp, kadm_randkey);
  62     krb5_store_principal(sp, princ);
  63     ret = _kadm5_client_send(context, sp);
  64     krb5_storage_free(sp);
  65     if (ret)
  66         return ret;
  67     ret = _kadm5_client_recv(context, &reply);
  68     if(ret)
  69         return ret;
  70     sp = krb5_storage_from_data(&reply);
  71     if (sp == NULL) {
  72         krb5_clear_error_string(context->context);
  73         krb5_data_free (&reply);
  74         return ENOMEM;
  75     }
  76     krb5_clear_error_string(context->context);
  77     krb5_ret_int32(sp, &tmp);
  78     ret = tmp;
  79     if(ret == 0){
  80         krb5_keyblock *k;
  81         int i;
  82
  83         krb5_ret_int32(sp, &tmp);
  84         k = malloc(tmp * sizeof(*k));
  85         if (k == NULL) {
  86             ret = ENOMEM;
  87             goto out;
  88         }
  89         for(i = 0; i < tmp; i++)
  90             krb5_ret_keyblock(sp, &k[i]);
  91         *n_keys = tmp;
  92         *new_keys = k;
  93     }
  94 out:
  95     krb5_storage_free(sp);
  96     krb5_data_free (&reply);
  97     return ret;
  98 }