xref: /freebsd/crypto/heimdal/lib/krb5/rd_error.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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 
36 RCSID("$Id: rd_error.c,v 1.6 2001/05/15 06:35:10 assar Exp $");
37 
38 krb5_error_code
39 krb5_rd_error(krb5_context context,
40 	      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 	return ret;
50     result->error_code += KRB5KDC_ERR_NONE;
51     return 0;
52 }
53 
54 void
55 krb5_free_error_contents (krb5_context context,
56 			  krb5_error *error)
57 {
58     free_KRB_ERROR(error);
59 }
60 
61 void
62 krb5_free_error (krb5_context context,
63 		 krb5_error *error)
64 {
65     krb5_free_error_contents (context, error);
66     free (error);
67 }
68 
69 krb5_error_code
70 krb5_error_from_rd_error(krb5_context context,
71 			 const krb5_error *error,
72 			 const krb5_creds *creds)
73 {
74     krb5_error_code ret;
75 
76     ret = error->error_code;
77     if (error->e_text != NULL) {
78 	krb5_set_error_string(context, "%s", *error->e_text);
79     } else {
80 	char clientname[256], servername[256];
81 
82 	if (creds != NULL) {
83 	    krb5_unparse_name_fixed(context, creds->client,
84 				    clientname, sizeof(clientname));
85 	    krb5_unparse_name_fixed(context, creds->server,
86 				    servername, sizeof(servername));
87 	}
88 
89 	switch (ret) {
90 	case KRB5KDC_ERR_NAME_EXP :
91 	    krb5_set_error_string(context, "Client %s%s%s expired",
92 				  creds ? "(" : "",
93 				  creds ? clientname : "",
94 				  creds ? ")" : "");
95 	    break;
96 	case KRB5KDC_ERR_SERVICE_EXP :
97 	    krb5_set_error_string(context, "Server %s%s%s expired",
98 				  creds ? "(" : "",
99 				  creds ? servername : "",
100 				  creds ? ")" : "");
101 	    break;
102 	case KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN :
103 	    krb5_set_error_string(context, "Client %s%s%s unknown",
104 				  creds ? "(" : "",
105 				  creds ? clientname : "",
106 				  creds ? ")" : "");
107 	    break;
108 	case KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN :
109 	    krb5_set_error_string(context, "Server %s%s%s unknown",
110 				  creds ? "(" : "",
111 				  creds ? servername : "",
112 				  creds ? ")" : "");
113 	    break;
114 	default :
115 	    krb5_clear_error_string(context);
116 	    break;
117 	}
118     }
119     return ret;
120 }
121