client.lua

rednet.open("left")





local function registry()

    local name = arg[2]

    local id = os.getComputerID()

    local data = {name = name, id = id}

    local message = textutils.serialise(data)



    rednet.send(126, message, "dns_register")



    local senderID, message, protocol = rednet.receive("dns_ack")

    print(message)

end





local function getall()

    rednet.send(126, "", "dns_list")

    local senderID, message, protocol = rednet.receive("dns_list_response")

    print(message)



end





if #arg == 0 then

    print("No argements provided. Available commands:")

    print("1. reg [domain] - register a domain")

    print("2. getall - list all domains")

    return

end





if arg[1] == "reg" then

    registry()

elseif arg[1] == "getall" then

    getall()

end