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/** BEGIN COPYRIGHT BLOCK
 * This Program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; version 2 of the License.
 * 
 * This Program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA 02111-1307 USA.
 * 
 * In addition, as a special exception, Red Hat, Inc. gives You the additional
 * right to link the code of this Program with code not covered under the GNU
 * General Public License ("Non-GPL Code") and to distribute linked combinations
 * including the two, subject to the limitations in this paragraph. Non-GPL Code
 * permitted under this exception must only link to the code of this Program
 * through those well defined interfaces identified in the file named EXCEPTION
 * found in the source code files (the "Approved Interfaces"). The files of
 * Non-GPL Code may instantiate templates or use macros or inline functions from
 * the Approved Interfaces without causing the resulting work to be covered by
 * the GNU General Public License. Only Red Hat, Inc. may make changes or
 * additions to the list of Approved Interfaces. You must obey the GNU General
 * Public License in all respects for all of the Program code and other code used
 * in conjunction with the Program except the Non-GPL Code covered by this
 * exception. If you modify this file, you may extend this exception to your
 * version of the file, but you are not obligated to do so. If you do not wish to
 * provide this exception without modification, you must delete this exception
 * statement from your version and license this file solely under the GPL without
 * exception. 
 * 
 * 
 * Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
 * Copyright (C) 2005 Red Hat, Inc.
 * All rights reserved.
 * END COPYRIGHT BLOCK **/

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

 
#include "slapi-plugin.h"
#include "repl.h"

int
legacy_preop_compare( Slapi_PBlock *pb )
{
	int is_replicated_operation = 0;
	char *compare_base = NULL;
	struct berval **referral = NULL;
	int return_code = 0;
	Slapi_DN *basesdn;

	slapi_pblock_get(pb, SLAPI_IS_REPLICATED_OPERATION, &is_replicated_operation);
	slapi_pblock_get(pb, SLAPI_COMPARE_TARGET, &compare_base);
	basesdn= slapi_sdn_new_dn_byref(compare_base);
    referral = get_data_source(pb, basesdn, 1, NULL);
	slapi_sdn_free(&basesdn);
	if (NULL != referral && !is_replicated_operation)
	{
		/*
		 * There is a copyingFrom in this entry or an ancestor.
		 * Return a referral to the supplier, and we're all done.
		 */
		slapi_send_ldap_result(pb, LDAP_REFERRAL, NULL, NULL, 0, referral);
		return_code = 1;	/* return 1 to prevent further search processing */
	}
	return return_code;
}