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
36KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
37krb5_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
54KRB5_LIB_FUNCTION void KRB5_LIB_CALL
55krb5_free_error_contents (krb5_context context,
56			  krb5_error *error)
57{
58    free_KRB_ERROR(error);
59    memset(error, 0, sizeof(*error));
60}
61
62KRB5_LIB_FUNCTION void KRB5_LIB_CALL
63krb5_free_error (krb5_context context,
64		 krb5_error *error)
65{
66    krb5_free_error_contents (context, error);
67    free (error);
68}
69
70KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
71krb5_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}
126