lib/krb5/mk_error.c

   1 /*
   2  * Copyright (c) 1997 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. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by Kungliga Tekniska
  20  *      Högskolan and its contributors.
  21  *
  22  * 4. Neither the name of the Institute nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include "krb5_locl.h"
  40
  41 RCSID("$Id$");
  42
  43 krb5_error_code
  44 krb5_mk_error(krb5_context context,
  45               krb5_error_code error_code,
  46               const char *e_text,
  47               const krb5_data *e_data,
  48               const krb5_principal client,
  49               const krb5_principal server,
  50               time_t ctime,
  51               krb5_data *reply)
  52 {
  53     KRB_ERROR msg;
  54     unsigned char buf[1024];
  55     int32_t sec, usec;
  56
  57     krb5_us_timeofday (context, &sec, &usec);
  58
  59     memset(&msg, 0, sizeof(msg));
  60     msg.pvno     = 5;
  61     msg.msg_type = krb_error;
  62     msg.stime    = sec;
  63     msg.susec    = usec;
  64     if(ctime) {
  65         msg.ctime = &ctime;
  66     }
  67     msg.error_code = error_code - KRB5KDC_ERR_NONE;
  68     if (e_text)
  69         msg.e_text = (general_string*)&e_text;
  70     if (e_data)
  71         msg.e_data = (octet_string*)e_data;
  72     if(server){
  73         msg.realm = server->realm;
  74         msg.sname = server->name;
  75     }else{
  76         msg.realm = "<unspecified realm>";
  77     }
  78     if(client){
  79         msg.crealm = &client->realm;
  80         msg.cname = &client->name;
  81     }
  82     encode_KRB_ERROR(buf + sizeof(buf) - 1, sizeof(buf), &msg, &reply->length);
  83     reply->data = malloc(reply->length);
  84     if (reply->data == NULL)
  85         return ENOMEM;
  86     memcpy(reply->data, buf + sizeof(buf) - reply->length, reply->length);
  87     return 0;
  88 }