while true do
            event, modemSide, senderChannel1, replyChannel1, user = os.pullEvent("modem_message")  -- User = specific user, senderChannel =
            if (event ~= "modem_message") then
                   os.reboot()
            end
modem.transmit(replyChannel1, 0, "Processing Request")
if (senderChannel1 == 1) then
--code
end
if(senderChannel1 == 2) then
pass = samePC(replyChannel1)
                            if(fs.exists(user) == true) then
                                            login = fs.open(user .."/pass", "r")
                                            temp = login.readLine()
                                            login.close()
                                            if (temp == pass) then
                                                            modem.transmit(replyChannel1, 0, 1) -- Password correct
                                            else
                                                            modem.transmit(replyChannel1, 0, 2) -- Password incorrect
                                            end
                            else
                                            modem.transmit(replyChannel1, 0, 0) -- user doesn't exist error
                            end
end
--etc
end