Fix problem with TDS packets longer than packet size

Author: thekid

ChangeLog.md

@@ -3,6 +3,8 @@ RDBMS support for the XP Framework: MySQL, Sybase, MSSQL, PostgreSQL, SQLite3, I
 
 ## ?.?.? / ????-??-??
 
+* Fix problem with TDS packets longer than packet size - @thekid
+
 ## 6.4.0 / 2015-07-12
 
 * Added forward compatibility with XP 6.4.0 - @thekid

src/main/php/rdbms/tds/TdsDataStream.class.php

@@ -231,7 +231,7 @@ protected function readFully($length) {
    * @throws  rdbms.tds.TdsProtocolException
    */
   protected function read0($length) {
-    while (-1 === $length || strlen($this->buffer) < $length) {
+    while (-1 === $length || 0 === $this->header['status'] || strlen($this->buffer) < $length) {
       if (1 === $this->header['status']) return strlen($this->buffer);
 
       $bytes= $this->readFully(8);