handle panic

util.go

@@ -20,6 +20,11 @@ var SSHLogLevel = ERROR
 
 // PipeAndClose pipe the data between c and s, close both when done
 func PipeAndClose(c io.ReadWriteCloser, s io.ReadWriteCloser) {
+	defer func() {
+		if err := recover(); err != nil {
+			log.Printf("recovered: %+v", err)
+		}
+	}()
 	defer c.Close()
 	defer s.Close()
 	cc := make(chan struct{}, 2)