Login Client

-- To prevent people from using Ctrl + T on this program, uncomment the next two commented lines AND the very last line. Don't do it until both programs actually work together.
--local oldPullEvent = os.pullEvent
--os.pullEvent = os.pullEventRaw

while true do -- Repeat the login loop until a user logs in successfully
    print("  Login  ")
    print("=========")
    sleep(1)
    print(" ")
    sleep(1)
    print("Username: ")
    sleep(1)
    login = read() --you enter your username
    sleep(1)
    rednet.open("right") --open connection to the modem
    rednet.send(3, login) --send the username to pc3(DB PC)
    sleep(2)
    x,y,z = rednet.receive() --waiting for the answer with the pw or wpw message
    if y == "wpw" then --if wpw then restart the login process
        print("Wrong username!")
        sleep(1)
    else
        sleep(1)
        print("Password: ")
        sleep(1)
        -- It can be simplified to just this, since you don't ever reference to the pw variable again
        if read("*") == y then --if the entered password is equal to the pw sent back by the DB then access is granted
        print("Access Granted!")
        sleep(1)
        print("Main menu following...")
        sleep(2)
        break -- Exit the while loop and the program
    else --if it's not equal start the program again
        print("Wrong password!")
        sleep(1)
    end
end

--os.pullEvent = oldPullEvent