LM Lutron telnet listener

[AEK]

hello everyone!!

I made function (with Admin's big help), which will show you what Lutron send by telnet
I have lutron Homework QS

create user libruary "lutron"

Code:

local socket = require("socket")

local user = 'default'
local password = 'default'

function lutron_connect()
    local tcp = assert(socket.tcp())
 tcp:settimeout(31)
    local res, err = tcp:connect('192.168.0.105', 23)
 if res then
   return tcp
 else
   tcp:close()
   return nil, err
 end
end

function lutron_login()
 local tcp, tcp_err = lutron_connect()
 if not tcp then
   return nil,  tcp_err
 end
 tcp:receive(7)
 tcp:send(user..'\r\n')
    tcp:receive(10)
 tcp:send(password..'\r\n')
 local res = tcp:receive(9)
 if res == nil or res == 'bad login' then
   tcp:close()
   return nil, res
 end
 return tcp
end
 
function lutron_receive(tcp)
res, err = tcp:receive()
 if not res then
   tcp:close()
   return nil, err
 end
 return res
end

and resident script

Code:

require('user.lutron')
 
tcp, err = lutron_login()
if not tcp then
 log('no connection to device', err)
end
while tcp do
 res, err = lutron_receive(tcp)
 log(res,err)
   if (res == nil) then
     return
   end
end