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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright (c) 1996,1997, by Sun Microsystems, Inc.
     24  * All rights reserved.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 /*
     30  *  glue routine for gss_delete_sec_context
     31  */
     32 
     33 #include <mechglueP.h>
     34 #include <stdio.h>
     35 #ifdef HAVE_STDLIB_H
     36 #include <stdlib.h>
     37 #endif
     38 
     39 OM_uint32
     40 gss_delete_sec_context(minor_status,
     41 				context_handle,
     42 				output_token)
     43 
     44 OM_uint32 *			minor_status;
     45 gss_ctx_id_t *			context_handle;
     46 gss_buffer_t			output_token;
     47 
     48 {
     49 	OM_uint32		status;
     50 	gss_union_ctx_id_t	ctx;
     51 	gss_mechanism		mech;
     52 
     53 	if (minor_status == NULL)
     54 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
     55 
     56 	/* if the context_handle is Null, return NO_CONTEXT error */
     57 	if (context_handle == NULL || *context_handle == GSS_C_NO_CONTEXT)
     58 		return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
     59 
     60 	/*
     61 	 * select the approprate underlying mechanism routine and
     62 	 * call it.
     63 	 */
     64 
     65 	ctx = (gss_union_ctx_id_t) *context_handle;
     66 	mech = __gss_get_mechanism(ctx->mech_type);
     67 
     68 	if (mech) {
     69 
     70 		if (mech->gss_delete_sec_context)
     71 			status = mech->gss_delete_sec_context(mech->context,
     72 							minor_status,
     73 							&ctx->internal_ctx_id,
     74 							output_token);
     75 		else
     76 			status = GSS_S_UNAVAILABLE;
     77 
     78 		/* now free up the space for the union context structure */
     79 		free(ctx->mech_type->elements);
     80 		free(ctx->mech_type);
     81 		free(*context_handle);
     82 		*context_handle = NULL;
     83 
     84 		return (status);
     85 	}
     86 
     87 	return (GSS_S_BAD_MECH);
     88 }
     89