xref: /freebsd/crypto/heimdal/lib/gssapi/ntlm/delete_sec_context.c (revision 884a2a699669ec61e2366e3e358342dbc94be24a)
1 /*
2  * Copyright (c) 1997 - 2003 Kungliga Tekniska H�gskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include "ntlm/ntlm.h"
35 
36 RCSID("$Id: delete_sec_context.c 22163 2007-12-04 21:25:06Z lha $");
37 
38 OM_uint32 _gss_ntlm_delete_sec_context
39            (OM_uint32 * minor_status,
40             gss_ctx_id_t * context_handle,
41             gss_buffer_t output_token
42            )
43 {
44     if (context_handle) {
45 	ntlm_ctx ctx = (ntlm_ctx)*context_handle;
46 	gss_cred_id_t cred = (gss_cred_id_t)ctx->client;
47 
48 	*context_handle = GSS_C_NO_CONTEXT;
49 
50 	if (ctx->server)
51 	    (*ctx->server->nsi_destroy)(minor_status, ctx->ictx);
52 
53 	_gss_ntlm_release_cred(NULL, &cred);
54 
55 	memset(ctx, 0, sizeof(*ctx));
56 	free(ctx);
57     }
58     if (output_token) {
59 	output_token->length = 0;
60 	output_token->value  = NULL;
61     }
62 
63     *minor_status = 0;
64     return GSS_S_COMPLETE;
65 }
66