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#pragma ident "%Z%%M% %I% %E% SMI"
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998-1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
/*
* Copyright (c) 1990 Regents of the University of Michigan.
* All rights reserved.
*/
/*
* compare.c
*/
#if 0
#ifndef lint
static char copyright[] = "@(#) Copyright (c) 1990 Regents of the University of Michigan.\nAll rights reserved.\n";
#endif
#endif
#include "ldap-int.h"
/*
* ldap_compare - perform an ldap compare operation. The dn
* of the entry to compare to and the attribute and value to compare (in
* attr and value) are supplied. The msgid of the response is returned.
*
* Example:
* ldap_compare( ld, "c=us@cn=bob", "userPassword", "secret" )
*/
int
LDAP_CALL
ldap_compare( LDAP *ld, const char *dn, const char *attr, const char *value )
{
int msgid;
struct berval bv;
LDAPDebug( LDAP_DEBUG_TRACE, "ldap_compare\n", 0, 0, 0 );
bv.bv_val = (char *)value;
bv.bv_len = ( value == NULL ) ? 0 : strlen( value );
if ( ldap_compare_ext( ld, dn, attr, &bv, NULL, NULL, &msgid )
== LDAP_SUCCESS ) {
return( msgid );
} else {
return( -1 ); /* error is in ld handle */
}
}
int
LDAP_CALL
ldap_compare_ext( LDAP *ld, const char *dn, const char *attr,
const struct berval *bvalue, LDAPControl **serverctrls,
LDAPControl **clientctrls, int *msgidp )
{
BerElement *ber;
int rc, lderr;
/* The compare request looks like this:
* CompareRequest ::= SEQUENCE {
* entry DistinguishedName,
* ava SEQUENCE {
* type AttributeType,
* value AttributeValue
* }
* }
* and must be wrapped in an LDAPMessage.
*/
LDAPDebug( LDAP_DEBUG_TRACE, "ldap_compare_ext\n", 0, 0, 0 );
if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
return( LDAP_PARAM_ERROR );
}
if ( attr == NULL || bvalue == NULL || bvalue->bv_len == 0
|| msgidp == NULL ) {
lderr = LDAP_PARAM_ERROR;
LDAP_SET_LDERRNO( ld, lderr, NULL, NULL );
return( lderr );
}
if ( dn == NULL ) {
dn = "";
}
LDAP_MUTEX_LOCK( ld, LDAP_MSGID_LOCK );
*msgidp = ++ld->ld_msgid;
LDAP_MUTEX_UNLOCK( ld, LDAP_MSGID_LOCK );
/* check the cache */
if ( ld->ld_cache_on && ld->ld_cache_compare != NULL ) {
LDAP_MUTEX_LOCK( ld, LDAP_CACHE_LOCK );
if ( (rc = (ld->ld_cache_compare)( ld, *msgidp,
LDAP_REQ_COMPARE, dn, attr, bvalue )) != 0 ) {
*msgidp = rc;
LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
return( LDAP_SUCCESS );
}
LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
}
/* create a message to send */
if (( lderr = nsldapi_alloc_ber_with_options( ld, &ber ))
!= LDAP_SUCCESS ) {
return( lderr );
}
if ( ber_printf( ber, "{it{s{so}}", *msgidp, LDAP_REQ_COMPARE, dn,
attr, bvalue->bv_val, (int)bvalue->bv_len /* XXX lossy cast */ )
== -1 ) {
lderr = LDAP_ENCODING_ERROR;
LDAP_SET_LDERRNO( ld, lderr, NULL, NULL );
ber_free( ber, 1 );
return( lderr );
}
if (( lderr = nsldapi_put_controls( ld, serverctrls, 1, ber ))
!= LDAP_SUCCESS ) {
ber_free( ber, 1 );
return( lderr );
}
/* send the message */
rc = nsldapi_send_initial_request( ld, *msgidp, LDAP_REQ_COMPARE,
(char *)dn, ber );
*msgidp = rc;
return( rc < 0 ? LDAP_GET_LDERRNO( ld, NULL, NULL ) : LDAP_SUCCESS );
}
int
LDAP_CALL
ldap_compare_s( LDAP *ld, const char *dn, const char *attr,
const char *value )
{
struct berval bv;
bv.bv_val = (char *)value;
bv.bv_len = ( value == NULL ) ? 0 : strlen( value );
return( ldap_compare_ext_s( ld, dn, attr, &bv, NULL, NULL ));
}
int
LDAP_CALL
ldap_compare_ext_s( LDAP *ld, const char *dn, const char *attr,
const struct berval *bvalue, LDAPControl **serverctrls,
LDAPControl **clientctrls )
{
int err, msgid;
LDAPMessage *res;
if (( err = ldap_compare_ext( ld, dn, attr, bvalue, serverctrls,
clientctrls, &msgid )) != LDAP_SUCCESS ) {
return( err );
}
if ( ldap_result( ld, msgid, 1, (struct timeval *)NULL, &res )
== -1 ) {
return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );
}
return( ldap_result2error( ld, res, 1 ) );
}
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