mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-27 03:20:22 +08:00
a81ca18845
which only part of a LDAPMessage is available on a socket. The server-code seemed to handle this correctly already, so I didn't touch it. My apologies for the hack in ber_get_next :-).
767 lines
19 KiB
C
767 lines
19 KiB
C
/*
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* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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/* Portions
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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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* result.c - wait for an ldap result
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <ac/errno.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include <ac/unistd.h>
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#include "ldap-int.h"
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static int ldap_abandoned LDAP_P(( LDAP *ld, int msgid ));
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static int ldap_mark_abandoned LDAP_P(( LDAP *ld, int msgid ));
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static int wait4msg LDAP_P(( LDAP *ld, int msgid, int all, struct timeval *timeout,
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LDAPMessage **result ));
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
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static int try_read1msg LDAP_P(( LDAP *ld, int msgid, int all, Sockbuf *sb, LDAPConn *lc,
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LDAPMessage **result ));
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static unsigned long build_result_ber LDAP_P(( LDAP *ld, BerElement *ber, LDAPRequest *lr ));
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static void merge_error_info LDAP_P(( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr ));
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#else /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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static int try_read1msg LDAP_P(( LDAP *ld, int msgid, int all, Sockbuf *sb,
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LDAPMessage **result ));
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#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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#if defined( LDAP_CONNECTIONLESS ) || !defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS )
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static int ldap_select1 LDAP_P(( LDAP *ld, struct timeval *timeout ));
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#endif
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/*
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* ldap_result - wait for an ldap result response to a message from the
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* ldap server. If msgid is -1, any message will be accepted, otherwise
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* ldap_result will wait for a response with msgid. If all is 0 the
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* first message with id msgid will be accepted, otherwise, ldap_result
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* will wait for all responses with id msgid and then return a pointer to
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* the entire list of messages. This is only useful for search responses,
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* which can be of two message types (zero or more entries, followed by an
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* ldap result). The type of the first message received is returned.
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* When waiting, any messages that have been abandoned are discarded.
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*
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* Example:
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* ldap_result( s, msgid, all, timeout, result )
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*/
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int
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ldap_result( LDAP *ld, int msgid, int all, struct timeval *timeout,
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LDAPMessage **result )
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{
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LDAPMessage *lm, *lastlm, *nextlm;
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/*
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* First, look through the list of responses we have received on
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* this association and see if the response we're interested in
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* is there. If it is, return it. If not, call wait4msg() to
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* wait until it arrives or timeout occurs.
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*/
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Debug( LDAP_DEBUG_TRACE, "ldap_result\n", 0, 0, 0 );
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*result = NULLMSG;
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lastlm = NULLMSG;
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for ( lm = ld->ld_responses; lm != NULLMSG; lm = nextlm ) {
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nextlm = lm->lm_next;
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if ( ldap_abandoned( ld, lm->lm_msgid ) ) {
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ldap_mark_abandoned( ld, lm->lm_msgid );
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if ( lastlm == NULLMSG ) {
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ld->ld_responses = lm->lm_next;
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} else {
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lastlm->lm_next = nextlm;
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}
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ldap_msgfree( lm );
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continue;
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}
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if ( msgid == LDAP_RES_ANY || lm->lm_msgid == msgid ) {
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LDAPMessage *tmp;
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if ( all == 0
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|| (lm->lm_msgtype != LDAP_RES_SEARCH_RESULT
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&& lm->lm_msgtype != LDAP_RES_SEARCH_REFERENCE /* LDAPv3 */
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&& lm->lm_msgtype != LDAP_RES_SEARCH_ENTRY) )
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break;
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for ( tmp = lm; tmp != NULLMSG; tmp = tmp->lm_chain ) {
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if ( tmp->lm_msgtype == LDAP_RES_SEARCH_RESULT )
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break;
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}
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if ( tmp == NULLMSG ) {
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return( wait4msg( ld, msgid, all, timeout,
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result ) );
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}
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break;
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}
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lastlm = lm;
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}
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if ( lm == NULLMSG ) {
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return( wait4msg( ld, msgid, all, timeout, result ) );
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}
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if ( lastlm == NULLMSG ) {
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ld->ld_responses = (all == 0 && lm->lm_chain != NULLMSG
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? lm->lm_chain : lm->lm_next);
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} else {
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lastlm->lm_next = (all == 0 && lm->lm_chain != NULLMSG
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? lm->lm_chain : lm->lm_next);
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}
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if ( all == 0 )
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lm->lm_chain = NULLMSG;
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lm->lm_next = NULLMSG;
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*result = lm;
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ld->ld_errno = LDAP_SUCCESS;
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return( lm->lm_msgtype );
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}
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static int
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wait4msg( LDAP *ld, int msgid, int all, struct timeval *timeout,
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LDAPMessage **result )
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{
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int rc;
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struct timeval tv, *tvp;
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time_t start_time = 0;
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time_t tmp_time;
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
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LDAPConn *lc, *nextlc;
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#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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#ifdef LDAP_DEBUG
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if ( timeout == NULL ) {
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Debug( LDAP_DEBUG_TRACE, "wait4msg (infinite timeout)\n",
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0, 0, 0 );
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} else {
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Debug( LDAP_DEBUG_TRACE, "wait4msg (timeout %ld sec, %ld usec)\n",
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(long) timeout->tv_sec, (long) timeout->tv_usec, 0 );
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}
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#endif /* LDAP_DEBUG */
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if ( timeout == NULL ) {
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tvp = NULL;
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} else {
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tv = *timeout;
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tvp = &tv;
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start_time = time( NULL );
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}
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rc = -2;
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while ( rc == -2 ) {
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#ifndef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
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/* hack attack */
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if ( ! lber_pvt_sb_data_ready(&ld->ld_sb) ) {
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rc = ldap_select1( ld, tvp );
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if ( rc == 0 || ( rc == -1 && (
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( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART)
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== LDAP_OPT_OFF )
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|| errno != EINTR ))) {
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ld->ld_errno = (rc == -1 ? LDAP_SERVER_DOWN :
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LDAP_TIMEOUT);
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return( rc );
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}
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}
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if ( rc == -1 ) {
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rc = -2; /* select interrupted: loop */
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} else {
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rc = try_read1msg( ld, msgid, all, &ld->ld_sb, result );
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}
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#else /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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#ifdef LDAP_DEBUG
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if ( ldap_debug & LDAP_DEBUG_TRACE ) {
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ldap_dump_connection( ld, ld->ld_conns, 1 );
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ldap_dump_requests_and_responses( ld );
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}
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#endif /* LDAP_DEBUG */
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for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
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if ( lber_pvt_sb_data_ready(lc->lconn_sb) ) {
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rc = try_read1msg( ld, msgid, all, lc->lconn_sb,
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lc, result );
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break;
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}
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}
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if ( lc == NULL ) {
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rc = do_ldap_select( ld, tvp );
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#ifdef LDAP_DEBUG
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if ( rc == -1 ) {
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Debug( LDAP_DEBUG_TRACE,
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"do_ldap_select returned -1: errno %d\n",
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errno, 0, 0 );
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}
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#endif
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if ( rc == 0 || ( rc == -1 && (
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( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART)
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== LDAP_OPT_OFF )
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|| errno != EINTR )))
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{
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ld->ld_errno = (rc == -1 ? LDAP_SERVER_DOWN :
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LDAP_TIMEOUT);
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return( rc );
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}
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if ( rc == -1 ) {
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rc = -2; /* select interrupted: loop */
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} else {
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rc = -2;
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for ( lc = ld->ld_conns; rc == -2 && lc != NULL;
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lc = nextlc ) {
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nextlc = lc->lconn_next;
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if ( lc->lconn_status ==
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LDAP_CONNST_CONNECTED &&
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ldap_is_read_ready( ld,
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lc->lconn_sb )) {
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rc = try_read1msg( ld, msgid, all,
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lc->lconn_sb, lc, result );
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}
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}
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}
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}
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#endif /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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if ( rc == -2 && tvp != NULL ) {
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tmp_time = time( NULL );
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if (( tv.tv_sec -= ( tmp_time - start_time )) <= 0 ) {
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rc = 0; /* timed out */
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ld->ld_errno = LDAP_TIMEOUT;
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break;
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}
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Debug( LDAP_DEBUG_TRACE, "wait4msg: %ld secs to go\n",
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(long) tv.tv_sec, 0, 0 );
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start_time = tmp_time;
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}
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}
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return( rc );
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}
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static int
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try_read1msg( LDAP *ld, int msgid, int all, Sockbuf *sb,
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
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LDAPConn *lc,
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#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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LDAPMessage **result )
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{
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BerElement *ber;
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LDAPMessage *new, *l, *prev, *tmp;
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long id;
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unsigned long tag, len;
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int foundit = 0;
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
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LDAPRequest *lr;
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BerElement tmpber;
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int rc, refer_cnt, hadref, simple_request;
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unsigned long lderr;
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ber = &lc->lconn_ber;
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#else
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ber = &ld->ld_ber;
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#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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Debug( LDAP_DEBUG_TRACE, "read1msg\n", 0, 0, 0 );
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#if 0
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ber_init_w_nullc( &ber, 0 );
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ldap_set_ber_options( ld, &ber );
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#endif
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/* get the next message */
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if ( (tag = ber_get_next( sb, &len, ber ))
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!= LDAP_TAG_MESSAGE ) {
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if ( tag == LBER_DEFAULT) {
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#ifdef LDAP_DEBUG
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Debug( LDAP_DEBUG_CONNS,
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"ber_get_next failed.\n", 0, 0, 0 );
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#endif
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#ifdef EWOULDBLOCK
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if (errno==EWOULDBLOCK) return -2;
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#endif
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#ifdef EAGAIN
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if (errno == EAGAIN) return -2;
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#endif
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ld->ld_errno = LDAP_SERVER_DOWN;
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return -1;
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}
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ld->ld_errno = LDAP_LOCAL_ERROR;
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return -1;
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}
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/* message id */
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if ( ber_get_int( ber, &id ) == LBER_ERROR ) {
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ld->ld_errno = LDAP_DECODING_ERROR;
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return( -1 );
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}
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/* if it's been abandoned, toss it */
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if ( ldap_abandoned( ld, (int)id ) ) {
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ber_clear( ber, 1 ); /* gack! */
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return( -2 ); /* continue looking */
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}
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
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if (( lr = ldap_find_request_by_msgid( ld, id )) == NULL ) {
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Debug( LDAP_DEBUG_ANY,
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"no request for response with msgid %ld (tossing)\n",
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id, 0, 0 );
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ber_clear( ber, 1 ); /* gack! */
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return( -2 ); /* continue looking */
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}
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Debug( LDAP_DEBUG_TRACE, "got %s msgid %ld, original id %d\n",
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( tag == LDAP_RES_SEARCH_ENTRY ) ? "entry" : "result", id,
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lr->lr_origid );
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id = lr->lr_origid;
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#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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/* the message type */
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if ( (tag = ber_peek_tag( ber, &len )) == LBER_ERROR ) {
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ld->ld_errno = LDAP_DECODING_ERROR;
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return( -1 );
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}
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
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refer_cnt = 0;
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hadref = simple_request = 0;
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rc = -2; /* default is to keep looking (no response found) */
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lr->lr_res_msgtype = tag;
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if ( tag != LDAP_RES_SEARCH_ENTRY ) {
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if ( ld->ld_version >= LDAP_VERSION2 &&
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( lr->lr_parent != NULL ||
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( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS)
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!= LDAP_OPT_OFF ) ) )
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{
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tmpber = *ber; /* struct copy */
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if ( ber_scanf( &tmpber, "{iaa}", &lderr,
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&lr->lr_res_matched, &lr->lr_res_error )
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!= LBER_ERROR ) {
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if ( lderr != LDAP_SUCCESS ) {
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/* referrals are in error string */
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refer_cnt = ldap_chase_referrals( ld, lr,
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&lr->lr_res_error, &hadref );
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}
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/* save errno, message, and matched string */
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if ( !hadref || lr->lr_res_error == NULL ) {
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lr->lr_res_errno = ( lderr ==
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LDAP_PARTIAL_RESULTS ) ? LDAP_SUCCESS
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: lderr;
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} else if ( ld->ld_errno != LDAP_SUCCESS ) {
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lr->lr_res_errno = ld->ld_errno;
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} else {
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lr->lr_res_errno = LDAP_PARTIAL_RESULTS;
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}
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Debug( LDAP_DEBUG_TRACE,
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"new result: res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
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lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
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lr->lr_res_matched ? lr->lr_res_matched : "" );
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}
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}
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Debug( LDAP_DEBUG_TRACE,
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"read1msg: %d new referrals\n", refer_cnt, 0, 0 );
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if ( refer_cnt != 0 ) { /* chasing referrals */
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ber_clear( ber, 1 ); /* gack! */
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if ( refer_cnt < 0 ) {
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return( -1 ); /* fatal error */
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}
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lr->lr_status = LDAP_REQST_CHASINGREFS;
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} else {
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if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL ) {
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/* request without any referrals */
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simple_request = ( hadref ? 0 : 1 );
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} else {
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/* request with referrals or child request */
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ber_clear( ber, 1 ); /* gack! */
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}
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while ( lr->lr_parent != NULL ) {
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merge_error_info( ld, lr->lr_parent, lr );
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lr = lr->lr_parent;
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if ( --lr->lr_outrefcnt > 0 ) {
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break; /* not completely done yet */
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}
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}
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if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL ) {
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id = lr->lr_msgid;
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tag = lr->lr_res_msgtype;
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Debug( LDAP_DEBUG_ANY, "request %ld done\n",
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id, 0, 0 );
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Debug( LDAP_DEBUG_TRACE,
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"res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
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lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
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lr->lr_res_matched ? lr->lr_res_matched : "" );
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if ( !simple_request ) {
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ber_clear( ber, 1 ); /* gack! */
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if ( build_result_ber( ld, ber, lr )
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== LBER_ERROR ) {
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ld->ld_errno = LDAP_NO_MEMORY;
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rc = -1; /* fatal error */
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}
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}
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ldap_free_request( ld, lr );
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}
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if ( lc != NULL ) {
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ldap_free_connection( ld, lc, 0, 1 );
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}
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}
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}
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if ( ber->ber_buf == NULL ) {
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return( rc );
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}
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#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
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/* make a new ldap message */
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if ( (new = (LDAPMessage *) calloc( 1, sizeof(LDAPMessage) ))
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== NULL ) {
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ld->ld_errno = LDAP_NO_MEMORY;
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return( -1 );
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}
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new->lm_msgid = (int)id;
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new->lm_msgtype = tag;
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new->lm_ber = ber_dup( ber );
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ber_clear( ber, 0 ); /* don't kill buffer */
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#ifndef LDAP_NOCACHE
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if ( ld->ld_cache != NULL ) {
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ldap_add_result_to_cache( ld, new );
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}
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#endif /* LDAP_NOCACHE */
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/* is this the one we're looking for? */
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if ( msgid == LDAP_RES_ANY || id == msgid ) {
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if ( all == 0
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|| (new->lm_msgtype != LDAP_RES_SEARCH_RESULT
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&& new->lm_msgtype != LDAP_RES_SEARCH_ENTRY) ) {
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*result = new;
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ld->ld_errno = LDAP_SUCCESS;
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return( tag );
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} else if ( new->lm_msgtype == LDAP_RES_SEARCH_RESULT) {
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foundit = 1; /* return the chain later */
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}
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}
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/*
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* if not, we must add it to the list of responses. if
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* the msgid is already there, it must be part of an existing
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* search response.
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*/
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prev = NULLMSG;
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for ( l = ld->ld_responses; l != NULLMSG; l = l->lm_next ) {
|
|
if ( l->lm_msgid == new->lm_msgid )
|
|
break;
|
|
prev = l;
|
|
}
|
|
|
|
/* not part of an existing search response */
|
|
if ( l == NULLMSG ) {
|
|
if ( foundit ) {
|
|
*result = new;
|
|
ld->ld_errno = LDAP_SUCCESS;
|
|
return( tag );
|
|
}
|
|
|
|
new->lm_next = ld->ld_responses;
|
|
ld->ld_responses = new;
|
|
return( -2 ); /* continue looking */
|
|
}
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "adding response id %d type %d:\n",
|
|
new->lm_msgid, new->lm_msgtype, 0 );
|
|
|
|
/* part of a search response - add to end of list of entries */
|
|
for ( tmp = l; tmp->lm_chain != NULLMSG &&
|
|
tmp->lm_chain->lm_msgtype == LDAP_RES_SEARCH_ENTRY;
|
|
tmp = tmp->lm_chain )
|
|
; /* NULL */
|
|
tmp->lm_chain = new;
|
|
|
|
/* return the whole chain if that's what we were looking for */
|
|
if ( foundit ) {
|
|
if ( prev == NULLMSG )
|
|
ld->ld_responses = l->lm_next;
|
|
else
|
|
prev->lm_next = l->lm_next;
|
|
*result = l;
|
|
ld->ld_errno = LDAP_SUCCESS;
|
|
#ifdef LDAP_WORLD_P16
|
|
/*
|
|
* XXX questionable fix; see text for [P16] on
|
|
* http://www.critical-angle.com/ldapworld/patch/
|
|
*
|
|
* inclusion of this patch causes searchs to hang on
|
|
* multiple platforms
|
|
*/
|
|
return( l->lm_msgtype );
|
|
#else /* LDAP_WORLD_P16 */
|
|
return( tag );
|
|
#endif /* !LDAP_WORLD_P16 */
|
|
}
|
|
|
|
return( -2 ); /* continue looking */
|
|
}
|
|
|
|
|
|
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
|
|
static unsigned long
|
|
build_result_ber( LDAP *ld, BerElement *ber, LDAPRequest *lr )
|
|
{
|
|
unsigned long len;
|
|
long along;
|
|
|
|
ber_init_w_nullc( ber, 0 );
|
|
ldap_set_ber_options( ld, ber );
|
|
if ( ber_printf( ber, "{it{ess}}", lr->lr_msgid,
|
|
(long)lr->lr_res_msgtype, lr->lr_res_errno,
|
|
lr->lr_res_matched ? lr->lr_res_matched : "",
|
|
lr->lr_res_error ? lr->lr_res_error : "" ) == -1 ) {
|
|
return( LBER_ERROR );
|
|
}
|
|
|
|
ber_reset( ber, 1 );
|
|
if ( ber_skip_tag( ber, &len ) == LBER_ERROR ) {
|
|
return( LBER_ERROR );
|
|
}
|
|
|
|
if ( ber_get_int( ber, &along ) == LBER_ERROR ) {
|
|
return( LBER_ERROR );
|
|
}
|
|
|
|
return( ber_peek_tag( ber, &len ));
|
|
}
|
|
|
|
|
|
static void
|
|
merge_error_info( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr )
|
|
{
|
|
/*
|
|
* Merge error information in "lr" with "parentr" error code and string.
|
|
*/
|
|
if ( lr->lr_res_errno == LDAP_PARTIAL_RESULTS ) {
|
|
parentr->lr_res_errno = lr->lr_res_errno;
|
|
if ( lr->lr_res_error != NULL ) {
|
|
(void)ldap_append_referral( ld, &parentr->lr_res_error,
|
|
lr->lr_res_error );
|
|
}
|
|
} else if ( lr->lr_res_errno != LDAP_SUCCESS &&
|
|
parentr->lr_res_errno == LDAP_SUCCESS ) {
|
|
parentr->lr_res_errno = lr->lr_res_errno;
|
|
if ( parentr->lr_res_error != NULL ) {
|
|
free( parentr->lr_res_error );
|
|
}
|
|
parentr->lr_res_error = lr->lr_res_error;
|
|
lr->lr_res_error = NULL;
|
|
if ( NAME_ERROR( lr->lr_res_errno )) {
|
|
if ( parentr->lr_res_matched != NULL ) {
|
|
free( parentr->lr_res_matched );
|
|
}
|
|
parentr->lr_res_matched = lr->lr_res_matched;
|
|
lr->lr_res_matched = NULL;
|
|
}
|
|
}
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "merged parent (id %d) error info: ",
|
|
parentr->lr_msgid, 0, 0 );
|
|
Debug( LDAP_DEBUG_TRACE, "result errno %d, error <%s>, matched <%s>\n",
|
|
parentr->lr_res_errno, parentr->lr_res_error ?
|
|
parentr->lr_res_error : "", parentr->lr_res_matched ?
|
|
parentr->lr_res_matched : "" );
|
|
}
|
|
#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
|
|
|
|
|
|
|
|
#if defined( LDAP_CONNECTIONLESS ) || !defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS )
|
|
|
|
static int
|
|
ldap_select1( LDAP *ld, struct timeval *timeout )
|
|
{
|
|
fd_set readfds;
|
|
static int tblsize;
|
|
|
|
if ( tblsize == 0 ) {
|
|
#ifdef HAVE_SYSCONF
|
|
tblsize = sysconf( _SC_OPEN_MAX );
|
|
#elif HAVE_GETDTABLESIZE
|
|
tblsize = getdtablesize();
|
|
#else
|
|
tblsize = FD_SETSIZE;
|
|
#endif
|
|
#ifdef FD_SETSIZE
|
|
if ( tblsize > FD_SETSIZE ) {
|
|
tblsize = FD_SETSIZE;
|
|
}
|
|
#endif /* FD_SETSIZE */
|
|
}
|
|
|
|
FD_ZERO( &readfds );
|
|
FD_SET( lber_pvt_sb_get_desc(&ld->ld_sb), &readfds );
|
|
|
|
return( select( tblsize, &readfds, 0, 0, timeout ) );
|
|
}
|
|
|
|
#endif /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
|
|
|
|
|
|
int
|
|
ldap_msgtype( LDAPMessage *lm )
|
|
{
|
|
return( lm ? lm->lm_msgtype : -1 );
|
|
}
|
|
|
|
int
|
|
ldap_msgid( LDAPMessage *lm )
|
|
{
|
|
return( lm ? lm->lm_msgid : -1 );
|
|
}
|
|
|
|
|
|
int
|
|
ldap_msgfree( LDAPMessage *lm )
|
|
{
|
|
LDAPMessage *next;
|
|
int type = 0;
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "ldap_msgfree\n", 0, 0, 0 );
|
|
|
|
for ( ; lm != NULLMSG; lm = next ) {
|
|
next = lm->lm_chain;
|
|
type = lm->lm_msgtype;
|
|
ber_free( lm->lm_ber, 1 );
|
|
free( (char *) lm );
|
|
}
|
|
|
|
return( type );
|
|
}
|
|
|
|
/*
|
|
* ldap_msgdelete - delete a message. It returns:
|
|
* 0 if the entire message was deleted
|
|
* -1 if the message was not found, or only part of it was found
|
|
*/
|
|
int
|
|
ldap_msgdelete( LDAP *ld, int msgid )
|
|
{
|
|
LDAPMessage *lm, *prev;
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "ldap_msgdelete\n", 0, 0, 0 );
|
|
|
|
prev = NULLMSG;
|
|
for ( lm = ld->ld_responses; lm != NULLMSG; lm = lm->lm_next ) {
|
|
if ( lm->lm_msgid == msgid )
|
|
break;
|
|
prev = lm;
|
|
}
|
|
|
|
if ( lm == NULLMSG )
|
|
return( -1 );
|
|
|
|
if ( prev == NULLMSG )
|
|
ld->ld_responses = lm->lm_next;
|
|
else
|
|
prev->lm_next = lm->lm_next;
|
|
|
|
if ( ldap_msgfree( lm ) == LDAP_RES_SEARCH_ENTRY )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
|
|
/*
|
|
* return 1 if message msgid is waiting to be abandoned, 0 otherwise
|
|
*/
|
|
static int
|
|
ldap_abandoned( LDAP *ld, int msgid )
|
|
{
|
|
int i;
|
|
|
|
if ( ld->ld_abandoned == NULL )
|
|
return( 0 );
|
|
|
|
for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
|
|
if ( ld->ld_abandoned[i] == msgid )
|
|
return( 1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
|
|
static int
|
|
ldap_mark_abandoned( LDAP *ld, int msgid )
|
|
{
|
|
int i;
|
|
|
|
if ( ld->ld_abandoned == NULL )
|
|
return( -1 );
|
|
|
|
for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
|
|
if ( ld->ld_abandoned[i] == msgid )
|
|
break;
|
|
|
|
if ( ld->ld_abandoned[i] == -1 )
|
|
return( -1 );
|
|
|
|
for ( ; ld->ld_abandoned[i] != -1; i++ ) {
|
|
ld->ld_abandoned[i] = ld->ld_abandoned[i + 1];
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
|
|
#ifdef LDAP_CONNECTIONLESS
|
|
int
|
|
cldap_getmsg( LDAP *ld, struct timeval *timeout, BerElement *ber )
|
|
{
|
|
int rc;
|
|
unsigned long tag, len;
|
|
|
|
if ( ! lber_pvt_sb_data_ready(&ld->ld_sb) ) {
|
|
rc = ldap_select1( ld, timeout );
|
|
if ( rc == -1 || rc == 0 ) {
|
|
ld->ld_errno = (rc == -1 ? LDAP_SERVER_DOWN :
|
|
LDAP_TIMEOUT);
|
|
return( rc );
|
|
}
|
|
}
|
|
|
|
/* get the next message */
|
|
if ( (tag = ber_get_next( &ld->ld_sb, &len, ber ))
|
|
!= LDAP_TAG_MESSAGE ) {
|
|
ld->ld_errno = (tag == LBER_DEFAULT ? LDAP_SERVER_DOWN :
|
|
LDAP_LOCAL_ERROR);
|
|
return( -1 );
|
|
}
|
|
|
|
return( tag );
|
|
}
|
|
#endif /* LDAP_CONNECTIONLESS */
|