1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
29#include <gssapi/gssapi.h>
30#include <stdlib.h>
31#include <errno.h>
32
33#include "mech_switch.h"
34#include "context.h"
35#include "utils.h"
36
37OM_uint32
38gss_delete_sec_context(OM_uint32 *minor_status,
39    gss_ctx_id_t *context_handle,
40    gss_buffer_t output_token)
41{
42	struct _gss_context *ctx = (struct _gss_context *) *context_handle;
43
44	if (output_token)
45		_gss_buffer_zero(output_token);
46
47	*minor_status = 0;
48	if (ctx) {
49		/*
50		 * If we have an implementation ctx, delete it,
51		 * otherwise fake an empty token.
52		 */
53		if (ctx->gc_ctx) {
54			(void) ctx->gc_mech->gm_delete_sec_context(
55				minor_status, &ctx->gc_ctx, output_token);
56		}
57		free(ctx);
58		*context_handle = GSS_C_NO_CONTEXT;
59	}
60
61	return (GSS_S_COMPLETE);
62}
63