/* suffixmassage.c - massages ldap backend dns *//* $OpenLDAP: pkg/ldap/servers/slapd/back-meta/suffixmassage.c,v 1.1.2.7 2007/01/02 21:44:04 kurt Exp $ *//* This work is part of OpenLDAP Software <http://www.openldap.org/>. * * Copyright 2003-2007 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"#ifdef ENABLE_REWRITEintldap_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;}#else/* * ldap_back_dn_massage *  * Aliases the suffix; based on suffix_alias (servers/slapd/suffixalias.c). */intldap_back_dn_massage(	dncookie *dc,	struct berval *odn,	struct berval *res){	int     i, src, dst;	struct berval pretty = {0,NULL}, *dn = odn;	assert( res != NULL );	if ( dn == NULL ) {		res->bv_val = NULL;		res->bv_len = 0;		return 0;	}	if ( dc->target->mt_rwmap.rwm_suffix_massage == NULL ) {		*res = *dn;		return 0;	}	if ( dc->tofrom ) {		src = 0 + dc->normalized;		dst = 2 + dc->normalized;	} else {		src = 2 + dc->normalized;		dst = 0 + dc->normalized;		/* DN from remote server may be in arbitrary form.		 * Pretty it so we can parse reliably.		 */		dnPretty( NULL, dn, &pretty, NULL );		if (pretty.bv_val) dn = &pretty;	}	for ( i = 0;		dc->target->mt_rwmap.rwm_suffix_massage[i].bv_val != NULL;		i += 4 ) {		int aliasLength = dc->target->mt_rwmap.rwm_suffix_massage[i+src].bv_len;		int diff = dn->bv_len - aliasLength;		if ( diff < 0 ) {			/* alias is longer than dn */			continue;		} else if ( diff > 0 && ( !DN_SEPARATOR(dn->bv_val[diff-1]))) {			/* boundary is not at a DN separator */			continue;			/* At a DN Separator */		}		if ( !strcmp( dc->target->mt_rwmap.rwm_suffix_massage[i+src].bv_val, &dn->bv_val[diff] ) ) {			res->bv_len = diff + dc->target->mt_rwmap.rwm_suffix_massage[i+dst].bv_len;			res->bv_val = ch_malloc( res->bv_len + 1 );			strncpy( res->bv_val, dn->bv_val, diff );			strcpy( &res->bv_val[diff], dc->target->mt_rwmap.rwm_suffix_massage[i+dst].bv_val );			Debug( LDAP_DEBUG_ARGS,				"ldap_back_dn_massage:"				" converted \"%s\" to \"%s\"\n",				BER_BVISNULL( dn ) ? "" : dn->bv_val,				BER_BVISNULL( res ) ? "" : res->bv_val, 0 );			break;		}	}	if (pretty.bv_val) {		ch_free(pretty.bv_val);		dn = odn;	}	/* Nothing matched, just return the original DN */	if (res->bv_val == NULL) {		*res = *dn;	}	return 0;}#endif /* !ENABLE_REWRITE */