LM Lutron telnet listener

[admin]

Try this query function:

Code:

function query(req, out)
  if not sock then
    return
  end

  sock:send(req .. '\r\n')
  local res, err = sock:receive()

  if not res then
    return close(err)
  end

  local pos = res:find('~')
  if not pos then
    return close('invalid reply1 ' .. res)
  end

  res = res:sub(pos)

  if res:sub(2, #req) ~= req:sub(2) then
    return close('invalid reply2 ' .. res)
  end

  local val = res:sub(#req + 2)
  log('response', req, out, val)
  val = tonumber(val)

  if val then
    grp.checkupdate(out, val)
  end
end