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195 lines
5.5 KiB
C
195 lines
5.5 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998-1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* Copyright (c) 1990 Regents of the University of Michigan.
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* All rights reserved.
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*/
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/*
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* compare.c
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*/
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#if 0
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#ifndef lint
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static char copyright[] = "@(#) Copyright (c) 1990 Regents of the University of Michigan.\nAll rights reserved.\n";
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#endif
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#endif
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#include "ldap-int.h"
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/*
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* ldap_compare - perform an ldap compare operation. The dn
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* of the entry to compare to and the attribute and value to compare (in
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* attr and value) are supplied. The msgid of the response is returned.
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*
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* Example:
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* ldap_compare( ld, "c=us@cn=bob", "userPassword", "secret" )
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*/
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int
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LDAP_CALL
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ldap_compare( LDAP *ld, const char *dn, const char *attr, const char *value )
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{
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int msgid;
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struct berval bv;
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LDAPDebug( LDAP_DEBUG_TRACE, "ldap_compare\n", 0, 0, 0 );
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bv.bv_val = (char *)value;
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bv.bv_len = ( value == NULL ) ? 0 : strlen( value );
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if ( ldap_compare_ext( ld, dn, attr, &bv, NULL, NULL, &msgid )
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== LDAP_SUCCESS ) {
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return( msgid );
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} else {
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return( -1 ); /* error is in ld handle */
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}
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}
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int
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LDAP_CALL
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ldap_compare_ext( LDAP *ld, const char *dn, const char *attr,
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const struct berval *bvalue, LDAPControl **serverctrls,
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LDAPControl **clientctrls, int *msgidp )
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{
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BerElement *ber;
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int rc, lderr;
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/* The compare request looks like this:
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* CompareRequest ::= SEQUENCE {
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* entry DistinguishedName,
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* ava SEQUENCE {
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* type AttributeType,
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* value AttributeValue
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* }
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* }
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* and must be wrapped in an LDAPMessage.
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*/
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LDAPDebug( LDAP_DEBUG_TRACE, "ldap_compare_ext\n", 0, 0, 0 );
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if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
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return( LDAP_PARAM_ERROR );
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}
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if ( attr == NULL || bvalue == NULL || bvalue->bv_len == 0
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|| msgidp == NULL ) {
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lderr = LDAP_PARAM_ERROR;
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LDAP_SET_LDERRNO( ld, lderr, NULL, NULL );
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return( lderr );
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}
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if ( dn == NULL ) {
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dn = "";
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}
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LDAP_MUTEX_LOCK( ld, LDAP_MSGID_LOCK );
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*msgidp = ++ld->ld_msgid;
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LDAP_MUTEX_UNLOCK( ld, LDAP_MSGID_LOCK );
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/* check the cache */
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if ( ld->ld_cache_on && ld->ld_cache_compare != NULL ) {
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LDAP_MUTEX_LOCK( ld, LDAP_CACHE_LOCK );
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if ( (rc = (ld->ld_cache_compare)( ld, *msgidp,
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LDAP_REQ_COMPARE, dn, attr, bvalue )) != 0 ) {
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*msgidp = rc;
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LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
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return( LDAP_SUCCESS );
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}
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LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
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}
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/* create a message to send */
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if (( lderr = nsldapi_alloc_ber_with_options( ld, &ber ))
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!= LDAP_SUCCESS ) {
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return( lderr );
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}
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if ( ber_printf( ber, "{it{s{so}}", *msgidp, LDAP_REQ_COMPARE, dn,
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attr, bvalue->bv_val, (int)bvalue->bv_len /* XXX lossy cast */ )
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== -1 ) {
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lderr = LDAP_ENCODING_ERROR;
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LDAP_SET_LDERRNO( ld, lderr, NULL, NULL );
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ber_free( ber, 1 );
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return( lderr );
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}
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if (( lderr = nsldapi_put_controls( ld, serverctrls, 1, ber ))
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!= LDAP_SUCCESS ) {
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ber_free( ber, 1 );
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return( lderr );
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}
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/* send the message */
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rc = nsldapi_send_initial_request( ld, *msgidp, LDAP_REQ_COMPARE,
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(char *)dn, ber );
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*msgidp = rc;
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return( rc < 0 ? LDAP_GET_LDERRNO( ld, NULL, NULL ) : LDAP_SUCCESS );
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}
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int
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LDAP_CALL
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ldap_compare_s( LDAP *ld, const char *dn, const char *attr,
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const char *value )
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{
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struct berval bv;
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bv.bv_val = (char *)value;
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bv.bv_len = ( value == NULL ) ? 0 : strlen( value );
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return( ldap_compare_ext_s( ld, dn, attr, &bv, NULL, NULL ));
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}
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int
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LDAP_CALL
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ldap_compare_ext_s( LDAP *ld, const char *dn, const char *attr,
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const struct berval *bvalue, LDAPControl **serverctrls,
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LDAPControl **clientctrls )
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{
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int err, msgid;
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LDAPMessage *res;
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if (( err = ldap_compare_ext( ld, dn, attr, bvalue, serverctrls,
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clientctrls, &msgid )) != LDAP_SUCCESS ) {
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return( err );
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}
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if ( ldap_result( ld, msgid, 1, (struct timeval *)NULL, &res )
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== -1 ) {
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return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );
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}
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return( ldap_result2error( ld, res, 1 ) );
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}
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