]> git.sur5r.net Git - openldap/blobdiff - libraries/libldap/result.c
define LDIF_MAXLINE instead of using BUFSIZ
[openldap] / libraries / libldap / result.c
index a4f1093bbe37b2e253cf690582a84e5edee6fa42..ebbb97c17ee0b29b12ba13fdd8223bb3416fabe6 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2005 The OpenLDAP Foundation.
+ * Copyright 1998-2006 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * can be found in the file "build/LICENSE-2.0.1" in this distribution
  * of OpenLDAP Software.
  */
-/* Portions Copyright (C) The Internet Society (1997)
- * ASN.1 fragments are from RFC 2251; see RFC for full legal notices.
- */
 
 /*
- * LDAPv3 (RFC2251)
+ * LDAPv3 (RFC 4511)
  *     LDAPResult ::= SEQUENCE {
- *             resultCode              ENUMERATED { ... },
- *             matchedDN               LDAPDN,
- *             errorMessage    LDAPString,
- *             referral                Referral OPTIONAL
+ *             resultCode                      ENUMERATED { ... },
+ *             matchedDN                       LDAPDN,
+ *             diagnosticMessage       LDAPString,
+ *             referral                        [3] Referral OPTIONAL
  *     }
  *     Referral ::= SEQUENCE OF LDAPURL        (one or more)
  *     LDAPURL ::= LDAPString                          (limited to URL chars)
 #include "ldap-int.h"
 #include "ldap_log.h"
 
-static int ldap_abandoned LDAP_P(( LDAP *ld, ber_int_t msgid ));
+static int ldap_abandoned_idx LDAP_P(( LDAP *ld, ber_int_t msgid ));
+#define ldap_abandoned(ld, msgid)      ( ldap_abandoned_idx((ld), (msgid)) > -1 )
 static int ldap_mark_abandoned LDAP_P(( LDAP *ld, ber_int_t msgid ));
 static int wait4msg LDAP_P(( LDAP *ld, ber_int_t msgid, int all, struct timeval *timeout,
        LDAPMessage **result ));
 static ber_tag_t try_read1msg LDAP_P(( LDAP *ld, ber_int_t msgid,
-       int all, Sockbuf *sb, LDAPConn **lc, LDAPMessage **result ));
+       int all, LDAPConn **lc, LDAPMessage **result ));
 static ber_tag_t build_result_ber LDAP_P(( LDAP *ld, BerElement **bp, LDAPRequest *lr ));
 static void merge_error_info LDAP_P(( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr ));
 static LDAPMessage * chkResponseList LDAP_P(( LDAP *ld, int msgid, int all));
 
+#define LDAP_MSG_X_KEEP_LOOKING                (-2)
+
 
 /*
  * ldap_result - wait for an ldap result response to a message from the
@@ -105,30 +105,37 @@ ldap_result(
        struct timeval *timeout,
        LDAPMessage **result )
 {
-       LDAPMessage     *lm;
-       int     rc;
+       LDAPMessage     *lm = NULL;
+       int             rc;
 
        assert( ld != NULL );
        assert( result != NULL );
 
-       Debug( LDAP_DEBUG_TRACE, "ldap_result msgid %d\n", msgid, 0, 0 );
+       Debug( LDAP_DEBUG_TRACE, "ldap_result ld %p msgid %d\n", (void *)ld, msgid, 0 );
 
 #ifdef LDAP_R_COMPILE
        ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex );
 #endif
-       lm = chkResponseList(ld, msgid, all);
+
+#if 0
+       /* this is already done inside wait4msg(), right?... */
+       lm = chkResponseList( ld, msgid, all );
+#endif
 
        if ( lm == NULL ) {
                rc = wait4msg( ld, msgid, all, timeout, result );
+
        } else {
                *result = lm;
                ld->ld_errno = LDAP_SUCCESS;
                rc = lm->lm_msgtype;
        }
+
 #ifdef LDAP_R_COMPILE
        ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
 #endif
-       return( rc );
+
+       return rc;
 }
 
 static LDAPMessage *
@@ -137,33 +144,37 @@ chkResponseList(
        int msgid,
        int all)
 {
-       LDAPMessage     *lm, *lastlm, *nextlm;
-    /*
+       LDAPMessage     *lm, **lastlm, *nextlm;
+       int             cnt = 0;
+
+       /*
         * Look through the list of responses we have received on
         * this association and see if the response we're interested in
         * is there.  If it is, return it.  If not, call wait4msg() to
         * wait until it arrives or timeout occurs.
         */
 
+#ifdef LDAP_R_COMPILE
+       LDAP_PVT_THREAD_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
+#endif
+
        Debug( LDAP_DEBUG_TRACE,
-               "ldap_chkResponseList for msgid=%d, all=%d\n",
-           msgid, all, 0 );
-       lastlm = NULL;
+               "ldap_chkResponseList ld %p msgid %d all %d\n",
+               (void *)ld, msgid, all );
+
+       lastlm = &ld->ld_responses;
        for ( lm = ld->ld_responses; lm != NULL; lm = nextlm ) {
                nextlm = lm->lm_next;
+               ++cnt;
 
                if ( ldap_abandoned( ld, lm->lm_msgid ) ) {
                        Debug( LDAP_DEBUG_TRACE,
                                "ldap_chkResponseList msg abandoned, msgid %d\n",
-                           msgid, 0, 0 );
+                               msgid, 0, 0 );
                        ldap_mark_abandoned( ld, lm->lm_msgid );
 
-                       if ( lastlm == NULL ) {
-                               /* Remove first entry in list */
-                               ld->ld_responses = lm->lm_next;
-                       } else {
-                               lastlm->lm_next = nextlm;
-                       }
+                       /* Remove this entry from list */
+                       *lastlm = nextlm;
 
                        ldap_msgfree( lm );
 
@@ -173,32 +184,18 @@ chkResponseList(
                if ( msgid == LDAP_RES_ANY || lm->lm_msgid == msgid ) {
                        LDAPMessage     *tmp;
 
-                       if ( all == LDAP_MSG_ONE || msgid == LDAP_RES_UNSOLICITED ) {
+                       if ( all == LDAP_MSG_ONE || all == LDAP_MSG_RECEIVED ||
+                               msgid == LDAP_RES_UNSOLICITED )
+                       {
                                break;
                        }
 
-                       if ( lm->lm_chain == NULL ) {
-                               assert(lm->lm_chain_tail == lm);
-                               if ((lm->lm_msgtype == LDAP_RES_SEARCH_ENTRY) ||
-                                       (lm->lm_msgtype == LDAP_RES_SEARCH_REFERENCE) ||
-                                       (lm->lm_msgtype == LDAP_RES_INTERMEDIATE)) {
-                                       tmp = NULL;
-                               } else {
-                                       tmp = lm;
-                               }
-                       } else {
-                               assert(lm->lm_chain_tail != NULL);
-                               assert(lm->lm_chain_tail->lm_chain != NULL);
-                               if ((lm->lm_chain_tail->lm_chain->lm_msgtype
-                                               == LDAP_RES_SEARCH_ENTRY) ||
-                                       (lm->lm_chain_tail->lm_chain->lm_msgtype
-                                               == LDAP_RES_SEARCH_REFERENCE) ||
-                                       (lm->lm_chain_tail->lm_chain->lm_msgtype
-                                               == LDAP_RES_INTERMEDIATE)) {
-                                       tmp = NULL;
-                               } else {
-                                       tmp = lm->lm_chain_tail->lm_chain;
-                               }
+                       tmp = lm->lm_chain_tail;
+                       if ( (tmp->lm_msgtype == LDAP_RES_SEARCH_ENTRY) ||
+                               (tmp->lm_msgtype == LDAP_RES_SEARCH_REFERENCE) ||
+                               (tmp->lm_msgtype == LDAP_RES_INTERMEDIATE) )
+                       {
+                               tmp = NULL;
                        }
 
                        if ( tmp == NULL ) {
@@ -207,36 +204,41 @@ chkResponseList(
 
                        break;
                }
-               lastlm = lm;
+               lastlm = &lm->lm_next;
+       }
+
+#if 0
+       {
+               char    buf[ BUFSIZ ];
+
+               snprintf( buf, sizeof( buf ), "ld=%p msgid=%d%s cnt=%d",
+                       ld, msgid, all ? " all" : "", cnt );
+               Debug( LDAP_DEBUG_TRACE, "+++ chkResponseList %s\n", buf, 0, 0 );
        }
+#endif
 
-    if ( lm != NULL ) {
+       if ( lm != NULL ) {
                /* Found an entry, remove it from the list */
-           if ( lastlm == NULL ) {
-                   ld->ld_responses = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
-                       ? lm->lm_chain : lm->lm_next);
-           } else {
-                   lastlm->lm_next = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
-                       ? lm->lm_chain : lm->lm_next);
-           }
-           if ( all == LDAP_MSG_ONE && lm->lm_chain != NULL ) {
+               if ( all == LDAP_MSG_ONE && lm->lm_chain != NULL ) {
+                       *lastlm = lm->lm_chain;
                        lm->lm_chain->lm_next = lm->lm_next;
                        lm->lm_chain->lm_chain_tail = ( lm->lm_chain_tail != lm ) ? lm->lm_chain_tail : lm->lm_chain;
-                       assert(lm->lm_chain->lm_chain_tail != NULL);
                        lm->lm_chain = NULL;
                        lm->lm_chain_tail = NULL;
-           }
-           lm->lm_next = NULL;
-    }
+               } else {
+                       *lastlm = lm->lm_next;
+               }
+               lm->lm_next = NULL;
+       }
 
 #ifdef LDAP_DEBUG
-       if( lm == NULL) {
+       if ( lm == NULL) {
                Debug( LDAP_DEBUG_TRACE,
-                       "ldap_chkResponseList returns NULL\n", 0, 0, 0);
+                       "ldap_chkResponseList returns ld %p NULL\n", (void *)ld, 0, 0);
        } else {
                Debug( LDAP_DEBUG_TRACE,
-                       "ldap_chkResponseList returns msgid %d, type 0x%02lu\n",
-                       lm->lm_msgid, (unsigned long) lm->lm_msgtype, 0);
+                       "ldap_chkResponseList returns ld %p msgid %d, type 0x%02lu\n",
+                       (void *)ld, lm->lm_msgid, (unsigned long) lm->lm_msgtype );
        }
 #endif
     return lm;
@@ -251,21 +253,27 @@ wait4msg(
        LDAPMessage **result )
 {
        int             rc;
-       struct timeval  tv, tv0, *tvp;
+       struct timeval  tv = { 0 },
+                       tv0 = { 0 },
+                       *tvp;
        time_t          start_time = 0;
        time_t          tmp_time;
-       LDAPConn        *lc, *nextlc;
+       LDAPConn        *lc;
 
        assert( ld != NULL );
        assert( result != NULL );
 
+#ifdef LDAP_R_COMPILE
+       LDAP_PVT_THREAD_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
+#endif
+
 #ifdef LDAP_DEBUG
        if ( timeout == NULL ) {
-               Debug( LDAP_DEBUG_TRACE, "wait4msg (infinite timeout), msgid %d\n",
-                   msgid, 0, 0 );
+               Debug( LDAP_DEBUG_TRACE, "wait4msg ld %p msgid %d (infinite timeout)\n",
+                       (void *)ld, msgid, 0 );
        } else {
-               Debug( LDAP_DEBUG_TRACE, "wait4msg (timeout %ld sec, %ld usec), msgid %d\n",
-                      (long) timeout->tv_sec, (long) timeout->tv_usec, msgid );
+               Debug( LDAP_DEBUG_TRACE, "wait4msg ld %p msgid %d (timeout %ld usec)\n",
+                       (void *)ld, msgid, (long)timeout->tv_sec * 1000000 + timeout->tv_usec );
        }
 #endif /* LDAP_DEBUG */
 
@@ -278,33 +286,54 @@ wait4msg(
                start_time = time( NULL );
        }
                    
-       rc = -2;
-       while ( rc == -2 ) {
+       rc = LDAP_MSG_X_KEEP_LOOKING;
+       while ( rc == LDAP_MSG_X_KEEP_LOOKING ) {
 #ifdef LDAP_DEBUG
-               Debug( LDAP_DEBUG_TRACE, "wait4msg continue, msgid %d, all %d\n",
-                   msgid, all, 0 );
                if ( ldap_debug & LDAP_DEBUG_TRACE ) {
+                       Debug( LDAP_DEBUG_TRACE, "wait4msg continue ld %p msgid %d all %d\n",
+                               (void *)ld, msgid, all );
+#ifdef LDAP_R_COMPILE
+                       ldap_pvt_thread_mutex_lock( &ld->ld_conn_mutex );
+#endif
                        ldap_dump_connection( ld, ld->ld_conns, 1 );
+#ifdef LDAP_R_COMPILE
+                       ldap_pvt_thread_mutex_unlock( &ld->ld_conn_mutex );
+                       ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
+#endif
                        ldap_dump_requests_and_responses( ld );
+#ifdef LDAP_R_COMPILE
+                       ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
+#endif
                }
 #endif /* LDAP_DEBUG */
 
-               if ( (*result = chkResponseList(ld, msgid, all)) != NULL ) {
+               if ( ( *result = chkResponseList( ld, msgid, all ) ) != NULL ) {
                        rc = (*result)->lm_msgtype;
 
                } else {
                        int lc_ready = 0;
 
-                       for ( lc = ld->ld_conns; lc != NULL; lc = nextlc ) {
-                               nextlc = lc->lconn_next;
+#ifdef LDAP_R_COMPILE
+                       ldap_pvt_thread_mutex_lock( &ld->ld_conn_mutex );
+#endif
+                       for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
                                if ( ber_sockbuf_ctrl( lc->lconn_sb,
-                                               LBER_SB_OPT_DATA_READY, NULL ) ) {
-                                       rc = try_read1msg( ld, msgid, all, lc->lconn_sb,
-                                               &lc, result );
+                                               LBER_SB_OPT_DATA_READY, NULL ) )
+                               {
+#ifdef LDAP_R_COMPILE
+                                       ldap_pvt_thread_mutex_unlock( &ld->ld_conn_mutex );
+#endif
+                                       rc = try_read1msg( ld, msgid, all, &lc, result );
+#ifdef LDAP_R_COMPILE
+                                       ldap_pvt_thread_mutex_lock( &ld->ld_conn_mutex );
+#endif
                                        lc_ready = 1;
                                        break;
                                }
-                       }
+                       }
+#ifdef LDAP_R_COMPILE
+                       ldap_pvt_thread_mutex_unlock( &ld->ld_conn_mutex );
+#endif
 
                        if ( !lc_ready ) {
                                rc = ldap_int_select( ld, tvp );
@@ -312,13 +341,13 @@ wait4msg(
                                if ( rc == -1 ) {
                                        Debug( LDAP_DEBUG_TRACE,
                                                "ldap_int_select returned -1: errno %d\n",
-                                               errno, 0, 0 );
+                                               sock_errno(), 0, 0 );
                                }
 #endif
 
                                if ( rc == 0 || ( rc == -1 && (
                                        !LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART)
-                                               || errno != EINTR )))
+                                               || sock_errno() != EINTR ) ) )
                                {
                                        ld->ld_errno = (rc == -1 ? LDAP_SERVER_DOWN :
                                                LDAP_TIMEOUT);
@@ -326,9 +355,10 @@ wait4msg(
                                }
 
                                if ( rc == -1 ) {
-                                       rc = -2;        /* select interrupted: loop */
+                                       rc = LDAP_MSG_X_KEEP_LOOKING;   /* select interrupted: loop */
+
                                } else {
-                                       rc = -2;
+                                       rc = LDAP_MSG_X_KEEP_LOOKING;
 #ifdef LDAP_R_COMPILE
                                        ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 #endif
@@ -341,34 +371,56 @@ wait4msg(
                                        }
 #ifdef LDAP_R_COMPILE
                                        ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
+                                       ldap_pvt_thread_mutex_lock( &ld->ld_conn_mutex );
 #endif
-                                       for ( lc = ld->ld_conns; rc == -2 && lc != NULL;
-                                               lc = nextlc )
+                                       for ( lc = ld->ld_conns;
+                                               rc == LDAP_MSG_X_KEEP_LOOKING && lc != NULL; )
                                        {
-                                               nextlc = lc->lconn_next;
                                                if ( lc->lconn_status == LDAP_CONNST_CONNECTED &&
-                                                       ldap_is_read_ready( ld, lc->lconn_sb ))
+                                                       ldap_is_read_ready( ld, lc->lconn_sb ) )
                                                {
-                                                       rc = try_read1msg( ld, msgid, all,
-                                                               lc->lconn_sb, &lc, result );
-                                                               if ( lc == NULL ) lc = nextlc;
+#ifdef LDAP_R_COMPILE
+                                                       ldap_pvt_thread_mutex_unlock( &ld->ld_conn_mutex );
+#endif
+                                                       rc = try_read1msg( ld, msgid, all, &lc, result );
+#ifdef LDAP_R_COMPILE
+                                                       ldap_pvt_thread_mutex_lock( &ld->ld_conn_mutex );
+#endif
+                                                       if ( lc == NULL ) {
+                                                               /* if lc gets free()'d,
+                                                                * there's no guarantee
+                                                                * lc->lconn_next is still
+                                                                * sane; better restart
+                                                                * (ITS#4405) */
+                                                               lc = ld->ld_conns;
+
+                                                               /* don't get to next conn! */
+                                                               break;
+                                                       }
                                                }
+
+                                               /* next conn */
+                                               lc = lc->lconn_next;
                                        }
+#ifdef LDAP_R_COMPILE
+                                       ldap_pvt_thread_mutex_unlock( &ld->ld_conn_mutex );
+#endif
                                }
                        }
                }
 
-               if ( rc == -2 && tvp != NULL ) {
+               if ( rc == LDAP_MSG_X_KEEP_LOOKING && tvp != NULL ) {
                        tmp_time = time( NULL );
-                       if (( tv0.tv_sec -=  ( tmp_time - start_time )) <= 0 ) {
+                       tv0.tv_sec -= ( tmp_time - start_time );
+                       if ( tv0.tv_sec <= 0 ) {
                                rc = 0; /* timed out */
                                ld->ld_errno = LDAP_TIMEOUT;
                                break;
                        }
                        tv.tv_sec = tv0.tv_sec;
 
-                       Debug( LDAP_DEBUG_TRACE, "wait4msg %ld secs to go\n",
-                              (long) tv.tv_sec, 0, 0 );
+                       Debug( LDAP_DEBUG_TRACE, "wait4msg ld %p %ld secs to go\n",
+                               (void *)ld, (long) tv.tv_sec, 0 );
                        start_time = tmp_time;
                }
        }
@@ -382,7 +434,6 @@ try_read1msg(
        LDAP *ld,
        ber_int_t msgid,
        int all,
-       Sockbuf *sb,
        LDAPConn **lcp,
        LDAPMessage **result )
 {
@@ -400,7 +451,7 @@ try_read1msg(
 
 #ifdef LDAP_CONNECTIONLESS
        LDAPMessage     *tmp = NULL, *chain_head = NULL;
-       int             firstmsg = 1, moremsgs = 0, isv2 = 0;
+       int             moremsgs = 0, isv2 = 0;
 #endif
 
        /*
@@ -417,13 +468,18 @@ try_read1msg(
        assert( lcp != NULL );
        assert( *lcp != NULL );
        
-       Debug( LDAP_DEBUG_TRACE, "read1msg: msgid %d, all %d\n", msgid, all, 0 );
+#ifdef LDAP_R_COMPILE
+       LDAP_PVT_THREAD_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
+#endif
+
+       Debug( LDAP_DEBUG_TRACE, "read1msg: ld %p msgid %d all %d\n",
+               (void *)ld, msgid, all );
 
        lc = *lcp;
 
 retry:
        if ( lc->lconn_ber == NULL ) {
-               lc->lconn_ber = ldap_alloc_ber_with_options(ld);
+               lc->lconn_ber = ldap_alloc_ber_with_options( ld );
 
                if( lc->lconn_ber == NULL ) {
                        return -1;
@@ -434,38 +490,40 @@ retry:
        assert( LBER_VALID (ber) );
 
        /* get the next message */
-       errno = 0;
+       sock_errset(0);
 #ifdef LDAP_CONNECTIONLESS
        if ( LDAP_IS_UDP(ld) ) {
                struct sockaddr from;
-               ber_int_sb_read(sb, &from, sizeof(struct sockaddr));
-               if (ld->ld_options.ldo_version == LDAP_VERSION2) isv2=1;
+               ber_int_sb_read( lc->lconn_sb, &from, sizeof(struct sockaddr) );
+               if (ld->ld_options.ldo_version == LDAP_VERSION2) isv2 = 1;
        }
 nextresp3:
 #endif
-       tag = ber_get_next( sb, &len, ber );
-       if ( tag == LDAP_TAG_MESSAGE ) {
+       tag = ber_get_next( lc->lconn_sb, &len, ber );
+       switch ( tag ) {
+       case LDAP_TAG_MESSAGE:
                /*
                 * We read a complete message.
                 * The connection should no longer need this ber.
                 */
                lc->lconn_ber = NULL;
-       }
-       if ( tag != LDAP_TAG_MESSAGE ) {
-               if ( tag == LBER_DEFAULT) {
+               break;
+
+       case LBER_DEFAULT:
 #ifdef LDAP_DEBUG                 
-                       Debug( LDAP_DEBUG_CONNS,
-                             "ber_get_next failed.\n", 0, 0, 0 );
+               Debug( LDAP_DEBUG_CONNS,
+                       "ber_get_next failed.\n", 0, 0, 0 );
 #endif            
 #ifdef EWOULDBLOCK                     
-                       if (errno==EWOULDBLOCK) return -2;
+               if ( sock_errno() == EWOULDBLOCK ) return LDAP_MSG_X_KEEP_LOOKING;
 #endif
 #ifdef EAGAIN
-                       if (errno == EAGAIN) return -2;
+               if ( sock_errno() == EAGAIN ) return LDAP_MSG_X_KEEP_LOOKING;
 #endif
-                       ld->ld_errno = LDAP_SERVER_DOWN;
-                       return -1;
-               }
+               ld->ld_errno = LDAP_SERVER_DOWN;
+               return -1;
+
+       default:
                ld->ld_errno = LDAP_LOCAL_ERROR;
                return -1;
        }
@@ -479,20 +537,21 @@ nextresp3:
 
        /* if it's been abandoned, toss it */
        if ( ldap_abandoned( ld, id ) ) {
-               Debug( LDAP_DEBUG_ANY, "abandoned\n", 0, 0, 0);
+               Debug( LDAP_DEBUG_ANY, "abandoned/discarded ld %p msgid %ld\n",
+                       (void *)ld, (long) id, 0);
 retry_ber:
                ber_free( ber, 1 );
-               if ( ber_sockbuf_ctrl( sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
+               if ( ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
                        goto retry;
                }
-               return( -2 );   /* continue looking */
+               return( LDAP_MSG_X_KEEP_LOOKING );      /* continue looking */
        }
 
        lr = ldap_find_request_by_msgid( ld, id );
        if ( lr == NULL ) {
                Debug( LDAP_DEBUG_ANY,
-                   "no request for response with msgid %ld (tossing)\n",
-                   (long) id, 0, 0 );
+                       "no request for response on ld %p msgid %ld (tossing)\n",
+                       (void *)ld, (long)id, 0 );
                goto retry_ber;
        }
 #ifdef LDAP_CONNECTIONLESS
@@ -509,14 +568,13 @@ nextresp2:
        }
 
        Debug( LDAP_DEBUG_TRACE,
-               "ldap_read: message type %s msgid %ld, original id %ld\n",
-               ldap_int_msgtype2str( tag ),
-               (long) lr->lr_msgid, (long) lr->lr_origid );
+               "read1msg: ld %p msgid %ld message type %s\n",
+               (void *)ld, (long) lr->lr_msgid, ldap_int_msgtype2str( tag ));
 
        id = lr->lr_origid;
        refer_cnt = 0;
        hadref = simple_request = 0;
-       rc = -2;        /* default is to keep looking (no response found) */
+       rc = LDAP_MSG_X_KEEP_LOOKING;   /* default is to keep looking (no response found) */
        lr->lr_res_msgtype = tag;
 
        /*
@@ -539,6 +597,7 @@ nextresp2:
                                /* Get the referral list */
                                if ( ber_scanf( &tmpber, "{v}", &refs ) == LBER_ERROR ) {
                                        rc = LDAP_DECODING_ERROR;
+
                                } else {
                                        /* Note: refs array is freed by ldap_chase_v3referrals */
                                        refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
@@ -546,7 +605,7 @@ nextresp2:
                                        if ( refer_cnt > 0 ) {
                                                /* sucessfully chased reference */
                                                /* If haven't got end search, set chasing referrals */
-                                               if( lr->lr_status != LDAP_REQST_COMPLETED) {
+                                               if ( lr->lr_status != LDAP_REQST_COMPLETED ) {
                                                        lr->lr_status = LDAP_REQST_CHASINGREFS;
                                                        Debug( LDAP_DEBUG_TRACE,
                                                                "read1msg:  search ref chased, "
@@ -560,12 +619,13 @@ nextresp2:
                                        }
                                }
                        }
+
                } else {
                        /* Check for V3 referral */
                        ber_len_t       len;
                        char            *lr_res_error = NULL;
 
-                       if ( ber_scanf( &tmpber, "{eaa",/*}*/ &lderr,
+                       if ( ber_scanf( &tmpber, "{eAA",/*}*/ &lderr,
                                    &lr->lr_res_matched, &lr_res_error )
                                    != LBER_ERROR )
                        {
@@ -577,6 +637,7 @@ nextresp2:
                                        } else {
                                                lr->lr_res_error = lr_res_error;
                                        }
+                                       lr_res_error = NULL;
                                }
 
                                /* Check if V3 referral */
@@ -594,18 +655,19 @@ nextresp2:
                                                        rc = LDAP_DECODING_ERROR;
                                                        lr->lr_status = LDAP_REQST_COMPLETED;
                                                        Debug( LDAP_DEBUG_TRACE,
-                                                           "read1msg: referral decode error, mark request completed, id = %d\n",
-                                                                   lr->lr_msgid, 0, 0);
+                                                               "read1msg: referral decode error, mark request completed, ld %p msgid %d\n",
+                                                               (void *)ld, lr->lr_msgid, 0);
+
                                                } else {
                                                        /* Chase the referral 
                                                         * Note: refs arrary is freed by ldap_chase_v3referrals
                                                         */
                                                        refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
-                                                           0, &lr->lr_res_error, &hadref );
+                                                               0, &lr->lr_res_error, &hadref );
                                                        lr->lr_status = LDAP_REQST_COMPLETED;
                                                        Debug( LDAP_DEBUG_TRACE,
-                                                           "read1msg:  referral chased, mark request completed, id = %d\n",
-                                                           lr->lr_msgid, 0, 0);
+                                                               "read1msg: referral chased, mark request completed, ld %p msgid %d\n",
+                                                               (void *)ld, lr->lr_msgid, 0);
                                                        if( refer_cnt > 0) {
                                                                /* Referral successfully chased */
                                                                v3ref = V3REF_SUCCESS;
@@ -618,6 +680,7 @@ nextresp2:
                                        LDAP_FREE( lr->lr_res_matched );
                                        lr->lr_res_matched = NULL;
                                }
+
                                if( lr->lr_res_error != NULL ) {
                                        LDAP_FREE( lr->lr_res_error );
                                        lr->lr_res_error = NULL;
@@ -649,7 +712,8 @@ nextresp2:
                                 */
                                if ( tag == LDAP_RES_SEARCH_RESULT )
                                        refer_cnt = 0;
-                       } else if ( ber_scanf( &tmpber, "{eaa}", &lderr,
+
+                       } else if ( ber_scanf( &tmpber, "{eAA}", &lderr,
                                &lr->lr_res_matched, &lr_res_error )
                                != LBER_ERROR )
                        {
@@ -692,32 +756,47 @@ nextresp2:
                                        lr->lr_res_errno = ( lderr ==
                                        LDAP_PARTIAL_RESULTS ) ? LDAP_SUCCESS
                                        : lderr;
+
                                } else if ( ld->ld_errno != LDAP_SUCCESS ) {
                                        lr->lr_res_errno = ld->ld_errno;
+
                                } else {
                                        lr->lr_res_errno = LDAP_PARTIAL_RESULTS;
                                }
-Debug( LDAP_DEBUG_TRACE,
-    "new result:  res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
-    lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
-    lr->lr_res_matched ? lr->lr_res_matched : "" );
+
+                               Debug( LDAP_DEBUG_TRACE, "new result:  "
+                                       "res_errno: %d, "
+                                       "res_error: <%s>, "
+                                       "res_matched: <%s>\n",
+                                       lr->lr_res_errno,
+                                       lr->lr_res_error ? lr->lr_res_error : "",
+                                       lr->lr_res_matched ? lr->lr_res_matched : "" );
+                       }
+
+                       /* in any case, don't leave any lr_res_error 'round */
+                       if ( lr_res_error ) {
+                               LDAP_FREE( lr_res_error );
                        }
                }
 
                Debug( LDAP_DEBUG_TRACE,
-                   "read1msg:  %d new referrals\n", refer_cnt, 0, 0 );
+                       "read1msg: ld %p %d new referrals\n",
+                       (void *)ld, refer_cnt, 0 );
 
                if ( refer_cnt != 0 ) { /* chasing referrals */
                        ber_free( ber, 1 );
                        ber = NULL;
                        if ( refer_cnt < 0 ) {
+                               ldap_return_request( ld, lr, 0 );
                                return( -1 );   /* fatal error */
                        }
                        lr->lr_res_errno = LDAP_SUCCESS; /* sucessfully chased referral */
+
                } else {
                        if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL ) {
                                /* request without any referrals */
                                simple_request = ( hadref ? 0 : 1 );
+
                        } else {
                                /* request with referrals or child request */
                                ber_free( ber, 1 );
@@ -726,7 +805,8 @@ Debug( LDAP_DEBUG_TRACE,
 
                        lr->lr_status = LDAP_REQST_COMPLETED; /* declare this request done */
                        Debug( LDAP_DEBUG_TRACE,
-                           "read1msg:  mark request completed, id = %d\n", lr->lr_msgid, 0, 0);
+                               "read1msg:  mark request completed, ld %p msgid %d\n",
+                               (void *)ld, lr->lr_msgid, 0);
                        while ( lr->lr_parent != NULL ) {
                                merge_error_info( ld, lr->lr_parent, lr );
 
@@ -738,12 +818,12 @@ Debug( LDAP_DEBUG_TRACE,
 
                        /* Check if all requests are finished, lr is now parent */
                        tmplr = lr;
-                       if (tmplr->lr_status == LDAP_REQST_COMPLETED) {
-                               for ( tmplr=lr->lr_child;
+                       if ( tmplr->lr_status == LDAP_REQST_COMPLETED ) {
+                               for ( tmplr = lr->lr_child;
                                        tmplr != NULL;
-                                       tmplr=tmplr->lr_refnext)
+                                       tmplr = tmplr->lr_refnext )
                                {
-                                       if( tmplr->lr_status != LDAP_REQST_COMPLETED) break;
+                                       if ( tmplr->lr_status != LDAP_REQST_COMPLETED ) break;
                                }
                        }
 
@@ -753,8 +833,8 @@ Debug( LDAP_DEBUG_TRACE,
                        {
                                id = lr->lr_msgid;
                                tag = lr->lr_res_msgtype;
-                               Debug( LDAP_DEBUG_ANY, "request %ld done\n",
-                                   (long) id, 0, 0 );
+                               Debug( LDAP_DEBUG_ANY, "request done: ld %p msgid %ld\n",
+                                       (void *)ld, (long) id, 0 );
 Debug( LDAP_DEBUG_TRACE,
 "res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
 lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
@@ -763,18 +843,14 @@ lr->lr_res_matched ? lr->lr_res_matched : "" );
                                        ber_free( ber, 1 );
                                        ber = NULL;
                                        if ( build_result_ber( ld, &ber, lr )
-                                           == LBER_ERROR ) {
+                                           == LBER_ERROR )
+                                       {
                                                rc = -1; /* fatal error */
                                        }
                                }
 
-#ifdef LDAP_R_COMPILE
-                               ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
-#endif
-                               ldap_free_request( ld, lr );
-#ifdef LDAP_R_COMPILE
-                               ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
-#endif
+                               ldap_return_request( ld, lr, 1 );
+                               lr = NULL;
                        }
 
                        if ( lc != NULL ) {
@@ -785,11 +861,16 @@ lr->lr_res_matched ? lr->lr_res_matched : "" );
 #ifdef LDAP_R_COMPILE
                                ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 #endif
-                               *lcp = NULL;
+                               lc = *lcp = NULL;
                        }
                }
        }
 
+       if ( lr != NULL ) {
+               ldap_return_request( ld, lr, 0 );
+               lr = NULL;
+       }
+
        if ( ber == NULL ) {
                return( rc );
        }
@@ -803,6 +884,7 @@ lr->lr_res_matched ? lr->lr_res_matched : "" );
        newmsg->lm_msgid = (int)id;
        newmsg->lm_msgtype = tag;
        newmsg->lm_ber = ber;
+       newmsg->lm_chain_tail = newmsg;
 
 #ifdef LDAP_CONNECTIONLESS
        /* CLDAP replies all fit in a single datagram. In LDAPv2 RFC1798
@@ -845,21 +927,18 @@ lr->lr_res_matched ? lr->lr_res_matched : "" );
                                 * datagram, if the sockbuf is readable we still have data
                                 * to parse.
                                 */
-                               ber = ldap_alloc_ber_with_options(ld);
-                               if (ber_sockbuf_ctrl(sb, LBER_SB_OPT_DATA_READY, NULL)) ok=1;
+                               ber = ldap_alloc_ber_with_options( ld );
+                               if ( ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_DATA_READY, NULL ) ) ok = 1;
                        }
                        /* set up response chain */
-                       if ( firstmsg ) {
-                               firstmsg = 0;
+                       if ( tmp == NULL ) {
                                newmsg->lm_next = ld->ld_responses;
                                ld->ld_responses = newmsg;
-                               newmsg->lm_chain_tail = newmsg;
                                chain_head = newmsg;
                        } else {
-                               assert( tmp != NULL );
                                tmp->lm_chain = newmsg;
-                               chain_head->lm_chain_tail = tmp;
                        }
+                       chain_head->lm_chain_tail = newmsg;
                        tmp = newmsg;
                        /* "ok" means there's more to parse */
                        if (ok) {
@@ -880,7 +959,7 @@ lr->lr_res_matched ? lr->lr_res_matched : "" );
                 * first response off the head of the chain.
                 */
                        tmp->lm_chain = newmsg;
-                       chain_head->lm_chain_tail = tmp;
+                       chain_head->lm_chain_tail = newmsg;
                        *result = chkResponseList( ld, msgid, all );
                        ld->ld_errno = LDAP_SUCCESS;
                        return( (*result)->lm_msgtype );
@@ -924,33 +1003,15 @@ lr->lr_res_matched ? lr->lr_res_matched : "" );
 
                newmsg->lm_next = ld->ld_responses;
                ld->ld_responses = newmsg;
-               newmsg->lm_chain_tail = newmsg;
                goto exit;
        }
 
-       Debug( LDAP_DEBUG_TRACE, "adding response id %ld type %ld:\n",
-           (long) newmsg->lm_msgid, (long) newmsg->lm_msgtype, 0 );
+       Debug( LDAP_DEBUG_TRACE, "adding response ld %p msgid %ld type %ld:\n",
+               (void *)ld, (long) newmsg->lm_msgid, (long) newmsg->lm_msgtype );
 
        /* part of a search response - add to end of list of entries */
-       if (l->lm_chain == NULL) {
-               assert(l->lm_chain_tail == l);
-               l->lm_chain = newmsg;
-       } else {
-               assert(l->lm_chain_tail != NULL);
-               assert(l->lm_chain_tail->lm_chain != NULL);
-               if ((l->lm_chain_tail->lm_chain->lm_msgtype
-                               == LDAP_RES_SEARCH_ENTRY) ||
-                       (l->lm_chain_tail->lm_chain->lm_msgtype
-                               == LDAP_RES_SEARCH_REFERENCE) ||
-                       (l->lm_chain_tail->lm_chain->lm_msgtype
-                               == LDAP_RES_INTERMEDIATE)) {
-                       l->lm_chain_tail->lm_chain->lm_chain = newmsg;
-                       l->lm_chain_tail = l->lm_chain_tail->lm_chain;
-               } else {
-                       /*FIXME: ldap_msgfree( l->lm_chain_tail->lm_chain );*/
-                       l->lm_chain_tail->lm_chain = newmsg;
-               }
-       }
+       l->lm_chain_tail->lm_chain = newmsg;
+       l->lm_chain_tail = newmsg;
 
        /* return the whole chain if that's what we were looking for */
        if ( foundit ) {
@@ -966,10 +1027,10 @@ exit:
                ld->ld_errno = LDAP_SUCCESS;
                return( tag );
        }
-       if ( ber_sockbuf_ctrl( sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
+       if ( lc && ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
                goto retry;
        }
-       return( -2 );   /* continue looking */
+       return( LDAP_MSG_X_KEEP_LOOKING );      /* continue looking */
 }
 
 
@@ -1026,18 +1087,19 @@ build_result_ber( LDAP *ld, BerElement **bp, LDAPRequest *lr )
 }
 
 
-static void
-merge_error_info( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr )
-{
 /*
  * Merge error information in "lr" with "parentr" error code and string.
  */
+static void
+merge_error_info( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr )
+{
        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 )
        {
@@ -1057,11 +1119,11 @@ merge_error_info( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr )
        }
 
        Debug( LDAP_DEBUG_TRACE, "merged parent (id %d) error info:  ",
-           parentr->lr_msgid, 0, 0 );
+               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 : "" );
+               parentr->lr_res_errno,
+               parentr->lr_res_error ?  parentr->lr_res_error : "",
+               parentr->lr_res_matched ?  parentr->lr_res_matched : "" );
 }
 
 
@@ -1070,7 +1132,7 @@ int
 ldap_msgtype( LDAPMessage *lm )
 {
        assert( lm != NULL );
-       return ( lm != NULL ) ? lm->lm_msgtype : -1;
+       return ( lm != NULL ) ? (int)lm->lm_msgtype : -1;
 }
 
 
@@ -1116,7 +1178,7 @@ ldap_msgfree( LDAPMessage *lm )
                LDAP_FREE( (char *) lm );
        }
 
-       return( type );
+       return type;
 }
 
 /*
@@ -1132,73 +1194,120 @@ ldap_msgdelete( LDAP *ld, int msgid )
 
        assert( ld != NULL );
 
-       Debug( LDAP_DEBUG_TRACE, "ldap_msgdelete\n", 0, 0, 0 );
+       Debug( LDAP_DEBUG_TRACE, "ldap_msgdelete ld=%p msgid=%d\n",
+               (void *)ld, msgid, 0 );
 
-       prev = NULL;
 #ifdef LDAP_R_COMPILE
        ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex );
 #endif
+       prev = NULL;
        for ( lm = ld->ld_responses; lm != NULL; lm = lm->lm_next ) {
-               if ( lm->lm_msgid == msgid )
+               if ( lm->lm_msgid == msgid ) {
                        break;
+               }
                prev = lm;
        }
 
        if ( lm == NULL ) {
                rc = -1;
+
        } else {
-               if ( prev == NULL )
+               if ( prev == NULL ) {
                        ld->ld_responses = lm->lm_next;
-               else
+               } else {
                        prev->lm_next = lm->lm_next;
+               }
        }
 #ifdef LDAP_R_COMPILE
        ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
 #endif
-       if ( lm && ldap_msgfree( lm ) == LDAP_RES_SEARCH_ENTRY )
+       if ( lm && ldap_msgfree( lm ) == LDAP_RES_SEARCH_ENTRY ) {
                rc = -1;
+       }
 
-       return( rc );
+       return rc;
 }
 
 
 /*
- * return 1 if message msgid is waiting to be abandoned, 0 otherwise
+ * ldap_abandoned_idx
+ *
+ * return the location of the message id in the array of abandoned
+ * message ids, or -1
+ *
+ * expects ld_res_mutex to be locked
  */
 static int
-ldap_abandoned( LDAP *ld, ber_int_t msgid )
+ldap_abandoned_idx( LDAP *ld, ber_int_t msgid )
 {
-       int     i;
+       int     begin,
+               end;
 
-       if ( ld->ld_abandoned == NULL )
-               return( 0 );
+#ifdef LDAP_R_COMPILE
+       LDAP_PVT_THREAD_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
+#endif
 
-       for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
-               if ( ld->ld_abandoned[i] == msgid )
-                       return( 1 );
+       assert( ld->ld_nabandoned >= 0 );
 
-       return( 0 );
-}
+       if ( ld->ld_abandoned == NULL || ld->ld_nabandoned == 0 ) {
+               return -1;
+       }
+
+       begin = 0;
+       end = ld->ld_nabandoned - 1;
+
+       /* use bisection */
+       if ( msgid < ld->ld_abandoned[ begin ] ) {
+               return -1;
+       }
+
+       if ( msgid > ld->ld_abandoned[ end ] ) {
+               return -1;
+       }
+
+       while ( end >= begin ) {
+               int     pos = (begin + end)/2;
+               int     curid = ld->ld_abandoned[ pos ];
 
+               if ( msgid < curid ) {
+                       end = pos - 1;
 
+               } else if ( msgid > curid ) {
+                       begin = pos + 1;
+
+               } else {
+                       return pos;
+               }
+       }
+
+       /* not abandoned */
+       return -1;
+}
+
+/*
+ * ldap_mark_abandoned
+ *
+ * expects ld_res_mutex to be locked
+ */
 static int
 ldap_mark_abandoned( LDAP *ld, ber_int_t msgid )
 {
-       int     i;
-
-       if ( ld->ld_abandoned == NULL )
-               return( -1 );
+       int     i, idx;
 
-       for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
-               if ( ld->ld_abandoned[i] == msgid )
-                       break;
+#ifdef LDAP_R_COMPILE
+       LDAP_PVT_THREAD_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
+#endif
 
-       if ( ld->ld_abandoned[i] == -1 )
-               return( -1 );
+       idx = ldap_abandoned_idx( ld, msgid );
+       if ( idx == -1 ) {
+               return -1;
+       }
 
-       for ( ; ld->ld_abandoned[i] != -1; i++ ) {
-               ld->ld_abandoned[i] = ld->ld_abandoned[i + 1];
+       --ld->ld_nabandoned;
+       assert( ld->ld_nabandoned >= 0 );
+       for ( i = idx; i < ld->ld_nabandoned; i++ ) {
+               ld->ld_abandoned[ i ] = ld->ld_abandoned[ i + 1 ];
        }
 
-       return( 0 );
+       return 0;
 }