gss_delete_sec_context.c revision 153838 
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: head/lib/libgssapi/gss_delete_sec_context.c 153838 2005-12-29 14:40:22Z dfr $
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
36OM_uint32
37gss_delete_sec_context(OM_uint32 *minor_status,
38    gss_ctx_id_t *context_handle,
39    gss_buffer_t output_token)
40{
41	OM_uint32 major_status;
42	struct _gss_context *ctx = (struct _gss_context *) *context_handle;
43
44	*minor_status = 0;
45	if (ctx) {
46		/*
47		 * If we have an implementation ctx, delete it,
48		 * otherwise fake an empty token.
49		 */
50		if (ctx->gc_ctx) {
51			major_status = ctx->gc_mech->gm_delete_sec_context(
52				minor_status, &ctx->gc_ctx, output_token);
53		} else if (output_token != GSS_C_NO_BUFFER) {
54			output_token->length = 0;
55			output_token->value = 0;
56		}
57		free(ctx);
58		*context_handle = 0;
59	}
60
61	return (GSS_S_COMPLETE);
62}
63