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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
/*
* File: compare.c
*
* Functions:
*
* ldif_back_compare() - ldap ldif back-end compare routine
*
*/
#include "back-ldif.h"
/*
* Function: ldif_back_compare
*
* Returns: -1, 0 or 1
*
* Description: compares entries in the ldif backend
*/
int
ldif_back_compare( Slapi_PBlock *pb )
{
LDIF *db; /*The Database*/
ldif_Entry *e, *prev; /*Used for searching the database*/
char *dn, *type; /*The dn and the type*/
struct berval *bval;
Slapi_Attr *attr;
int rc;
LDAPDebug( LDAP_DEBUG_TRACE, "=> ldif_back_compare\n", 0, 0, 0 );
prev = NULL;
if (slapi_pblock_get( pb, SLAPI_PLUGIN_PRIVATE, &db ) < 0 ||
slapi_pblock_get( pb, SLAPI_COMPARE_TARGET, &dn ) < 0 ||
slapi_pblock_get( pb, SLAPI_COMPARE_TYPE, &type ) < 0 ||
slapi_pblock_get( pb, SLAPI_COMPARE_VALUE, &bval ) < 0){
slapi_send_ldap_result( pb, LDAP_OPERATIONS_ERROR, NULL, NULL, 0, NULL );
return(-1);
}
/*Lock the database*/
PR_Lock( db->ldif_lock );
/*Find the entry for comparison*/
if ( (e = (ldif_Entry*) ldif_find_entry( pb, db, dn, &prev )) == NULL ) {
slapi_send_ldap_result( pb, LDAP_NO_SUCH_OBJECT, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 1 );
}
/*Check the access*/
rc= slapi_access_allowed( pb, e->lde_e, type, bval, SLAPI_ACL_COMPARE );
if ( rc!=LDAP_SUCCESS ) {
slapi_send_ldap_result( pb, rc, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 1 );
}
/*find the attribute*/
if ( slapi_entry_attr_find( e->lde_e, type, &attr ) != 0 ) {
slapi_send_ldap_result( pb, LDAP_NO_SUCH_ATTRIBUTE, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 1 );
}
if ( slapi_attr_value_find( attr, bval ) == 0 ) {
slapi_send_ldap_result( pb, LDAP_COMPARE_TRUE, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
return( 0 );
}
slapi_send_ldap_result( pb, LDAP_COMPARE_FALSE, NULL, NULL, 0, NULL );
PR_Unlock( db->ldif_lock );
LDAPDebug( LDAP_DEBUG_TRACE, "<= ldif_back_compare\n", 0, 0, 0 );
return( 0 );
}
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