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/* references.c */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2022 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>.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#include "ldap-int.h"
LDAPMessage *
ldap_first_reference( LDAP *ld, LDAPMessage *chain )
{
assert( ld != NULL );
assert( LDAP_VALID( ld ) );
assert( chain != NULL );
return chain->lm_msgtype == LDAP_RES_SEARCH_REFERENCE
? chain
: ldap_next_reference( ld, chain );
}
LDAPMessage *
ldap_next_reference( LDAP *ld, LDAPMessage *ref )
{
assert( ld != NULL );
assert( LDAP_VALID( ld ) );
assert( ref != NULL );
for (
ref = ref->lm_chain;
ref != NULL;
ref = ref->lm_chain )
{
if( ref->lm_msgtype == LDAP_RES_SEARCH_REFERENCE ) {
return( ref );
}
}
return( NULL );
}
int
ldap_count_references( LDAP *ld, LDAPMessage *chain )
{
int i;
assert( ld != NULL );
assert( LDAP_VALID( ld ) );
for ( i = 0; chain != NULL; chain = chain->lm_chain ) {
if( chain->lm_msgtype == LDAP_RES_SEARCH_REFERENCE ) {
i++;
}
}
return( i );
}
int
ldap_parse_reference(
LDAP *ld,
LDAPMessage *ref,
char ***referralsp,
LDAPControl ***serverctrls,
int freeit)
{
BerElement be;
char **refs = NULL;
int rc;
assert( ld != NULL );
assert( LDAP_VALID( ld ) );
assert( ref != NULL );
if( ref->lm_msgtype != LDAP_RES_SEARCH_REFERENCE ) {
return LDAP_PARAM_ERROR;
}
/* make a private copy of BerElement */
AC_MEMCPY(&be, ref->lm_ber, sizeof(be));
if ( ber_scanf( &be, "{v" /*}*/, &refs ) == LBER_ERROR ) {
rc = LDAP_DECODING_ERROR;
goto free_and_return;
}
if ( serverctrls == NULL ) {
rc = LDAP_SUCCESS;
goto free_and_return;
}
if ( ber_scanf( &be, /*{*/ "}" ) == LBER_ERROR ) {
rc = LDAP_DECODING_ERROR;
goto free_and_return;
}
rc = ldap_pvt_get_controls( &be, serverctrls );
free_and_return:
if( referralsp != NULL ) {
/* provide references regardless of return code */
*referralsp = refs;
} else {
LDAP_VFREE( refs );
}
if( freeit ) {
ldap_msgfree( ref );
}
if( rc != LDAP_SUCCESS ) {
ld->ld_errno = rc;
if( ld->ld_matched != NULL ) {
LDAP_FREE( ld->ld_matched );
ld->ld_matched = NULL;
}
if( ld->ld_error != NULL ) {
LDAP_FREE( ld->ld_error );
ld->ld_error = NULL;
}
}
return rc;
}
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