lib/krb5/rd_error.c

   1 /*
   2  * Copyright (c) 1997 - 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 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
  37 krb5_rd_error(krb5_context context,
  38               const krb5_data *msg,
  39               KRB_ERROR *result)
  40 {
  41
  42     size_t len;
  43     krb5_error_code ret;
  44
  45     ret = decode_KRB_ERROR(msg->data, msg->length, result, &len);
  46     if(ret) {
  47         krb5_clear_error_message(context);
  48         return ret;
  49     }
  50     result->error_code += KRB5KDC_ERR_NONE;
  51     return 0;
  52 }
  53
  54 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
  55 krb5_free_error_contents (krb5_context context,
  56                           krb5_error *error)
  57 {
  58     free_KRB_ERROR(error);
  59     memset(error, 0, sizeof(*error));
  60 }
  61
  62 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
  63 krb5_free_error (krb5_context context,
  64                  krb5_error *error)
  65 {
  66     krb5_free_error_contents (context, error);
  67     free (error);
  68 }
  69
  70 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
  71 krb5_error_from_rd_error(krb5_context context,
  72                          const krb5_error *error,
  73                          const krb5_creds *creds)
  74 {
  75     krb5_error_code ret;
  76
  77     ret = error->error_code;
  78     if (error->e_text != NULL) {
  79         krb5_set_error_message(context, ret, "%s", *error->e_text);
  80     } else {
  81         char clientname[256], servername[256];
  82
  83         if (creds != NULL) {
  84             krb5_unparse_name_fixed(context, creds->client,
  85                                     clientname, sizeof(clientname));
  86             krb5_unparse_name_fixed(context, creds->server,
  87                                     servername, sizeof(servername));
  88         }
  89
  90         switch (ret) {
  91         case KRB5KDC_ERR_NAME_EXP :
  92             krb5_set_error_message(context, ret,
  93                                    N_("Client %s%s%s expired", ""),
  94                                    creds ? "(" : "",
  95                                    creds ? clientname : "",
  96                                    creds ? ")" : "");
  97             break;
  98         case KRB5KDC_ERR_SERVICE_EXP :
  99             krb5_set_error_message(context, ret,
 100                                    N_("Server %s%s%s expired", ""),
 101                                    creds ? "(" : "",
 102                                    creds ? servername : "",
 103                                    creds ? ")" : "");
 104             break;
 105         case KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN :
 106             krb5_set_error_message(context, ret,
 107                                    N_("Client %s%s%s unknown", ""),
 108                                    creds ? "(" : "",
 109                                    creds ? clientname : "",
 110                                    creds ? ")" : "");
 111             break;
 112         case KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN :
 113             krb5_set_error_message(context, ret,
 114                                    N_("Server %s%s%s unknown", ""),
 115                                    creds ? "(" : "",
 116                                    creds ? servername : "",
 117                                    creds ? ")" : "");
 118             break;
 119         default :
 120             krb5_clear_error_message(context);
 121             break;
 122         }
 123     }
 124     return ret;
 125 }