xref: /freebsd/crypto/heimdal/lib/gssapi/mech/gss_duplicate_name.c (revision 39ee7a7a6bdd1557b1c3532abf60d139798ac88b)
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_duplicate_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_duplicate_name(OM_uint32 *minor_status,
33     const gss_name_t src_name,
34     gss_name_t *dest_name)
35 {
36 	OM_uint32		major_status;
37 	struct _gss_name	*name = (struct _gss_name *) src_name;
38 	struct _gss_name	*new_name;
39 	struct _gss_mechanism_name *mn;
40 
41 	*minor_status = 0;
42 	*dest_name = GSS_C_NO_NAME;
43 
44 	/*
45 	 * If this name has a value (i.e. it didn't come from
46 	 * gss_canonicalize_name(), we re-import the thing. Otherwise,
47 	 * we make copy of each mech names.
48 	 */
49 	if (name->gn_value.value) {
50 		major_status = gss_import_name(minor_status,
51 		    &name->gn_value, &name->gn_type, dest_name);
52 		if (major_status != GSS_S_COMPLETE)
53 			return (major_status);
54 		new_name = (struct _gss_name *) *dest_name;
55 
56 		HEIM_SLIST_FOREACH(mn, &name->gn_mn, gmn_link) {
57 		    struct _gss_mechanism_name *mn2;
58 		    _gss_find_mn(minor_status, new_name,
59 				 mn->gmn_mech_oid, &mn2);
60 		}
61 	} else {
62 		new_name = malloc(sizeof(struct _gss_name));
63 		if (!new_name) {
64 			*minor_status = ENOMEM;
65 			return (GSS_S_FAILURE);
66 		}
67 		memset(new_name, 0, sizeof(struct _gss_name));
68 		HEIM_SLIST_INIT(&new_name->gn_mn);
69 		*dest_name = (gss_name_t) new_name;
70 
71 		HEIM_SLIST_FOREACH(mn, &name->gn_mn, gmn_link) {
72 			struct _gss_mechanism_name *new_mn;
73 
74 			new_mn = malloc(sizeof(*new_mn));
75 			if (!new_mn) {
76 				*minor_status = ENOMEM;
77 				return GSS_S_FAILURE;
78 			}
79 			new_mn->gmn_mech = mn->gmn_mech;
80 			new_mn->gmn_mech_oid = mn->gmn_mech_oid;
81 
82 			major_status =
83 			    mn->gmn_mech->gm_duplicate_name(minor_status,
84 				mn->gmn_name, &new_mn->gmn_name);
85 			if (major_status != GSS_S_COMPLETE) {
86 				free(new_mn);
87 				continue;
88 			}
89 			HEIM_SLIST_INSERT_HEAD(&new_name->gn_mn, new_mn, gmn_link);
90 		}
91 
92 	}
93 
94 	return (GSS_S_COMPLETE);
95 }
96