1/*
2 * Copyright (c) 1997 - 2001 Kungliga Tekniska H�gskolan
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
36RCSID("$Id: rd_error.c 21057 2007-06-12 17:22:31Z lha $");
37
38krb5_error_code KRB5_LIB_FUNCTION
39krb5_rd_error(krb5_context context,
40	      const krb5_data *msg,
41	      KRB_ERROR *result)
42{
43
44    size_t len;
45    krb5_error_code ret;
46
47    ret = decode_KRB_ERROR(msg->data, msg->length, result, &len);
48    if(ret) {
49	krb5_clear_error_string(context);
50	return ret;
51    }
52    result->error_code += KRB5KDC_ERR_NONE;
53    return 0;
54}
55
56void KRB5_LIB_FUNCTION
57krb5_free_error_contents (krb5_context context,
58			  krb5_error *error)
59{
60    free_KRB_ERROR(error);
61    memset(error, 0, sizeof(*error));
62}
63
64void KRB5_LIB_FUNCTION
65krb5_free_error (krb5_context context,
66		 krb5_error *error)
67{
68    krb5_free_error_contents (context, error);
69    free (error);
70}
71
72krb5_error_code KRB5_LIB_FUNCTION
73krb5_error_from_rd_error(krb5_context context,
74			 const krb5_error *error,
75			 const krb5_creds *creds)
76{
77    krb5_error_code ret;
78
79    ret = error->error_code;
80    if (error->e_text != NULL) {
81	krb5_set_error_string(context, "%s", *error->e_text);
82    } else {
83	char clientname[256], servername[256];
84
85	if (creds != NULL) {
86	    krb5_unparse_name_fixed(context, creds->client,
87				    clientname, sizeof(clientname));
88	    krb5_unparse_name_fixed(context, creds->server,
89				    servername, sizeof(servername));
90	}
91
92	switch (ret) {
93	case KRB5KDC_ERR_NAME_EXP :
94	    krb5_set_error_string(context, "Client %s%s%s expired",
95				  creds ? "(" : "",
96				  creds ? clientname : "",
97				  creds ? ")" : "");
98	    break;
99	case KRB5KDC_ERR_SERVICE_EXP :
100	    krb5_set_error_string(context, "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_string(context, "Client %s%s%s unknown",
107				  creds ? "(" : "",
108				  creds ? clientname : "",
109				  creds ? ")" : "");
110	    break;
111	case KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN :
112	    krb5_set_error_string(context, "Server %s%s%s unknown",
113				  creds ? "(" : "",
114				  creds ? servername : "",
115				  creds ? ")" : "");
116	    break;
117	default :
118	    krb5_clear_error_string(context);
119	    break;
120	}
121    }
122    return ret;
123}
124