/* suffixmassage.c - massages ldap backend dns */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
 * Copyright 2003-2022 The OpenLDAP Foundation.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted only as authorized by the OpenLDAP
 * Public License.
 *
 * A copy of this license is available in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */
/* ACKNOWLEDGEMENTS:
 * This work was initially developed by the Howard Chu for inclusion
 * in OpenLDAP Software and subsequently enhanced by Pierangelo
 * Masarati.
 */
/* This is an altered version */

/* 
 * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
 * Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
 * 
 * Module back-ldap, originally developed by Howard Chu
 *
 * has been modified by Pierangelo Masarati. The original copyright
 * notice has been maintained.
 * 
 * Permission is granted to anyone to use this software for any purpose
 * on any computer system, and to alter it and redistribute it, subject
 * to the following restrictions:
 * 
 * 1. The author is not responsible for the consequences of use of this
 *    software, no matter how awful, even if they arise from flaws in it.
 * 
 * 2. The origin of this software must not be misrepresented, either by
 *    explicit claim or by omission.  Since few users ever read sources,
 *    credits should appear in the documentation.
 * 
 * 3. Altered versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.  Since few users
 *    ever read sources, credits should appear in the documentation.
 * 
 * 4. This notice may not be removed or altered.
 */

#include "portable.h"

#include <stdio.h>

#include <ac/string.h>
#include <ac/socket.h>

#include "slap.h"
#include "../back-ldap/back-ldap.h"
#include "back-meta.h"

int
ldap_back_dn_massage(
	dncookie	*dc,
	struct berval	*dn,
	struct berval	*res )
{
	int		rc = 0;
	static char	*dmy = "";

	switch ( rewrite_session( dc->target->mt_rwmap.rwm_rw, dc->ctx,
				( dn->bv_val ? dn->bv_val : dmy ),
				dc->conn, &res->bv_val ) )
	{
	case REWRITE_REGEXEC_OK:
		if ( res->bv_val != NULL ) {
			res->bv_len = strlen( res->bv_val );
		} else {
			*res = *dn;
		}
		Debug( LDAP_DEBUG_ARGS,
			"[rw] %s: \"%s\" -> \"%s\"\n",
			dc->ctx,
			BER_BVISNULL( dn ) ? "" : dn->bv_val,
			BER_BVISNULL( res ) ? "" : res->bv_val );
		rc = LDAP_SUCCESS;
		break;
 		
 	case REWRITE_REGEXEC_UNWILLING:
		if ( dc->rs ) {
			dc->rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
			dc->rs->sr_text = "Operation not allowed";
		}
		rc = LDAP_UNWILLING_TO_PERFORM;
		break;
	       	
	case REWRITE_REGEXEC_ERR:
		if ( dc->rs ) {
			dc->rs->sr_err = LDAP_OTHER;
			dc->rs->sr_text = "Rewrite error";
		}
		rc = LDAP_OTHER;
		break;
	}

	if ( res->bv_val == dmy ) { 
		BER_BVZERO( res );
	}

	return rc;
}