global getResponse
def getResponse(connection,maxLength = 0):
	data = b''
	data = recv(connection,4)
	if not data: return False
	nul = recv(connection,1)
	if not nul: return False
	if nul != b"\x00": return False
	requestLength = int.from_bytes(data,"big")
	if maxLength != 0 and requestLength > maxLength: return False
	return recv(connection,requestLength)

global sendResponse
def sendResponse(connection,data):
	connection.sendall(len(data).to_bytes(4,"big") + b"\x00" + data)