xref: /freebsd/crypto/heimdal/lib/gssapi/mech/gss_release_name.c (revision f4b37ed0f8b307b1f3f0f630ca725d68f1dff30d)
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_release_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
27  */
28 
29 #include "mech_locl.h"
30 
31 /**
32  * Free a name
33  *
34  * import_name can point to NULL or be NULL, or a pointer to a
35  * gss_name_t structure. If it was a pointer to gss_name_t, the
36  * pointer will be set to NULL on success and failure.
37  *
38  * @param minor_status minor status code
39  * @param input_name name to free
40  *
41  * @returns a gss_error code, see gss_display_status() about printing
42  *        the error code.
43  *
44  * @ingroup gssapi
45  */
46 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
47 gss_release_name(OM_uint32 *minor_status,
48     gss_name_t *input_name)
49 {
50 	struct _gss_name *name;
51 
52 	*minor_status = 0;
53 
54 	if (input_name == NULL || *input_name == NULL)
55 	    return GSS_S_COMPLETE;
56 
57 	name = (struct _gss_name *) *input_name;
58 
59 	if (name->gn_type.elements)
60 		free(name->gn_type.elements);
61 	while (HEIM_SLIST_FIRST(&name->gn_mn)) {
62 		struct _gss_mechanism_name *mn;
63 		mn = HEIM_SLIST_FIRST(&name->gn_mn);
64 		HEIM_SLIST_REMOVE_HEAD(&name->gn_mn, gmn_link);
65 		mn->gmn_mech->gm_release_name(minor_status,
66 					      &mn->gmn_name);
67 		free(mn);
68 	}
69 	gss_release_buffer(minor_status, &name->gn_value);
70 	free(name);
71 	*input_name = GSS_C_NO_NAME;
72 
73 	return (GSS_S_COMPLETE);
74 }
75