xref: /netbsd-src/crypto/external/bsd/heimdal/dist/lib/gssapi/mech/gss_export_name.c (revision d3273b5b76f5afaafe308cead5511dbb8df8c5e9)
1 /*	$NetBSD: gss_export_name.c,v 1.2 2017/01/28 21:31:46 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 2005 Doug Rabson
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  *	$FreeBSD: src/lib/libgssapi/gss_export_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
29  */
30 
31 #include "mech_locl.h"
32 
33 /**
34  * Convert a GGS-API name from internal form to contiguous string.
35  *
36  * @sa gss_import_name(), @ref internalVSmechname.
37  *
38  * @param minor_status   minor status code
39  * @param input_name     input name in internal name form
40  * @param exported_name  output name in contiguos string form
41  *
42  * @returns a gss_error code, see gss_display_status() about printing
43  *        the error code.
44  *
45  * @ingroup gssapi
46  */
47 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_export_name(OM_uint32 * minor_status,gss_const_name_t input_name,gss_buffer_t exported_name)48 gss_export_name(OM_uint32 *minor_status,
49     gss_const_name_t input_name,
50     gss_buffer_t exported_name)
51 {
52 	struct _gss_name *name = (struct _gss_name *) input_name;
53 	struct _gss_mechanism_name *mn;
54 
55 	_mg_buffer_zero(exported_name);
56 
57 	/*
58 	 * If this name already has any attached MNs, export the first
59 	 * one, otherwise export based on the first mechanism in our
60 	 * list.
61 	 */
62 	mn = HEIM_SLIST_FIRST(&name->gn_mn);
63 	if (!mn) {
64 		*minor_status = 0;
65 		return (GSS_S_NAME_NOT_MN);
66 	}
67 
68 	return mn->gmn_mech->gm_export_name(minor_status,
69 	    mn->gmn_name, exported_name);
70 }
71