relay

rednet.open("left")
rednet.open("right")
rednet.host("door","relay")
c = rednet.lookup("door","controller")
state = 1
while (state == 1) do
  id, msg, pc = rednet.receive("door")
  if (msg == "toggle") then
    rednet.send(c,"toggle","door")
    print("relaying toggle message")
  elseif (msg == "shutdown") then
    state = 0
    print("shutting down")
  end
end