fixed error message when connecting to a stream raises an error befor…

…e connect()

CHANGES

@@ -4,7 +4,7 @@ Changelog
 6.2.2 (2019-XX-XX)
 ------------------
 
- * n/a
+ * fixed error message when connecting to a stream raises an error before connect()
 
 6.2.1 (2019-04-21)
 ------------------

lib/classes/Swift/Transport/StreamBuffer.php

@@ -264,13 +264,16 @@ private function establishSocketConnection()
             $options = array_merge($options, $this->params['stream_context_options']);
         }
         $streamContext = stream_context_create($options);
-        $this->stream = @stream_socket_client($host.':'.$this->params['port'], $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $streamContext);
-        if (false === $this->stream) {
-            throw new Swift_TransportException(
-                'Connection could not be established with host '.$this->params['host'].
-                ' ['.$errstr.' #'.$errno.']'
-                );
+
+        set_error_handler(function ($type, $msg) {
+            throw new Swift_TransportException('Connection could not be established with host '.$this->params['host'].' :'.$msg);
+        });
+        try {
+            $this->stream = stream_socket_client($host.':'.$this->params['port'], $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $streamContext);
+        } finally {
+            restore_error_handler();
         }
+
         if (!empty($this->params['blocking'])) {
             stream_set_blocking($this->stream, 1);
         } else {