Fix error handling

Net/socket.class.php

@@ -76,10 +76,11 @@
 						chmod($this->address, 0702);
 					}elseif(function_exists('posix_mkfifo')){
 						posix_mkfifo($this->address, 0702);
-					}else{
-						throw new \Exception('Unable to create socket file');
 					}
 					$res = socket_bind($this->socket, $this->address);
+					if(!file_exists($this->address)){
+						throw new \Exception('Unable to create socket file');
+					}
 				}else{
 					$res = socket_bind($this->socket, $this->address, $this->port);
 				}