xref: /freebsd/lib/libgssapi/gss_display_name.c (revision 7bd6fde3)
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  *	$FreeBSD$
27  */
28 
29 #include <gssapi/gssapi.h>
30 #include <stdlib.h>
31 #include <errno.h>
32 
33 #include "mech_switch.h"
34 #include "name.h"
35 
36 OM_uint32
37 gss_display_name(OM_uint32 *minor_status,
38     const gss_name_t input_name,
39     gss_buffer_t output_name_buffer,
40     gss_OID *output_name_type)
41 {
42 	OM_uint32 major_status;
43 	struct _gss_name *name = (struct _gss_name *) input_name;
44 	struct _gss_mechanism_name *mn;
45 
46 	/*
47 	 * If we know it, copy the buffer used to import the name in
48 	 * the first place. Otherwise, ask all the MNs in turn if
49 	 * they can display the thing.
50 	 */
51 	if (name->gn_value.value) {
52 		output_name_buffer->value = malloc(name->gn_value.length);
53 		if (!output_name_buffer->value) {
54 			*minor_status = ENOMEM;
55 			return (GSS_S_FAILURE);
56 		}
57 		output_name_buffer->length = name->gn_value.length;
58 		memcpy(output_name_buffer->value, name->gn_value.value,
59 		    output_name_buffer->length);
60 		if (output_name_type)
61 			*output_name_type = &name->gn_type;
62 
63 		*minor_status = 0;
64 		return (GSS_S_COMPLETE);
65 	} else {
66 		SLIST_FOREACH(mn, &name->gn_mn, gmn_link) {
67 			major_status = mn->gmn_mech->gm_display_name(
68 				minor_status, mn->gmn_name,
69 				output_name_buffer,
70 				output_name_type);
71 			if (major_status == GSS_S_COMPLETE)
72 				return (GSS_S_COMPLETE);
73 		}
74 	}
75 
76 	*minor_status = 0;
77 	return (GSS_S_FAILURE);
78 }
79