xref: /freebsd/crypto/heimdal/lib/gssapi/mech/gss_display_name.c (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*-
2  * Copyright (c) 2005 Doug Rabson
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  *	$FreeBSD: src/lib/libgssapi/gss_display_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
27  */
28 
29 #include "mech_locl.h"
30 
31 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
32 gss_display_name(OM_uint32 *minor_status,
33     const gss_name_t input_name,
34     gss_buffer_t output_name_buffer,
35     gss_OID *output_name_type)
36 {
37 	OM_uint32 major_status;
38 	struct _gss_name *name = (struct _gss_name *) input_name;
39 	struct _gss_mechanism_name *mn;
40 
41 	_mg_buffer_zero(output_name_buffer);
42 	if (output_name_type)
43 	    *output_name_type = GSS_C_NO_OID;
44 
45 	if (name == NULL) {
46 		*minor_status = 0;
47 		return (GSS_S_BAD_NAME);
48 	}
49 
50 	/*
51 	 * If we know it, copy the buffer used to import the name in
52 	 * the first place. Otherwise, ask all the MNs in turn if
53 	 * they can display the thing.
54 	 */
55 	if (name->gn_value.value) {
56 		output_name_buffer->value = malloc(name->gn_value.length);
57 		if (!output_name_buffer->value) {
58 			*minor_status = ENOMEM;
59 			return (GSS_S_FAILURE);
60 		}
61 		output_name_buffer->length = name->gn_value.length;
62 		memcpy(output_name_buffer->value, name->gn_value.value,
63 		    output_name_buffer->length);
64 		if (output_name_type)
65 			*output_name_type = &name->gn_type;
66 
67 		*minor_status = 0;
68 		return (GSS_S_COMPLETE);
69 	} else {
70 		HEIM_SLIST_FOREACH(mn, &name->gn_mn, gmn_link) {
71 			major_status = mn->gmn_mech->gm_display_name(
72 				minor_status, mn->gmn_name,
73 				output_name_buffer,
74 				output_name_type);
75 			if (major_status == GSS_S_COMPLETE)
76 				return (GSS_S_COMPLETE);
77 		}
78 	}
79 
80 	*minor_status = 0;
81 	return (GSS_S_FAILURE);
82 }
83