1 // Copyright 2016 The Gorilla WebSocket Authors. All rights reserved.  Use of

     2 // this source code is governed by a BSD-style license that can be found in the

     3 // LICENSE file.

     4 

     5 // +build appengine

     6 

     7 package websocket

     8 

     9 func maskBytes(key [4]byte, pos int, b []byte) int {

    10 	for i := range b {

    11 		b[i] ^= key[pos&3]

    12 		pos++

    13 	}

    14 	return pos & 3

    15 }