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fix server #58

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fix server #58

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10 changes: 7 additions & 3 deletions lib/dns/server.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -21,19 +21,23 @@ defmodule DNS.Server do
end

def init([port]) do
socket = Socket.UDP.open!(port, as: :binary, mode: :active)
{:ok, socket} = :gen_udp.open(port, [{:active, true}, {:mode, :binary}])
IO.puts("Server listening at #{port}")

# accept_loop(socket, handler)
{:ok, %{port: port, socket: socket}}
end

def handle_info({:udp, client, ip, wtv, data}, state) do
def handle_info({:udp, client, ip, port, data}, state) do
record = DNS.Record.decode(data)
response = handle(record, client)
Socket.Datagram.send!(state.socket, DNS.Record.encode(response), {ip, wtv})
:gen_udp.send(state.socket, convert_address(ip), port, DNS.Record.encode(response))
{:noreply, state}
end

defp convert_address(a) when is_binary(a), do: String.to_charlist(a)

defp convert_address(a), do: a
end
end
end