private static Func <Task> MakeNtpServer(UdpClient socket, ServerArguments arguments, TextWriter writer)
{
var delay = new TimeSpan(0, 0, 0, arguments.SecondsDelay);
return(async() =>
{
while (true)
{
try
{
var udpReceiveResult = await socket.ReceiveAsync();
writer.WriteLine($"{DateTime.Now} Recieved request from {udpReceiveResult.RemoteEndPoint}.");
var frame = new SntpFrame(udpReceiveResult.Buffer);
frame.RearrangeForResponse(delay);
var responseBytes = frame.ToBytes();
writer.WriteLine($"{DateTime.Now} Started sending response to {udpReceiveResult.RemoteEndPoint}.");
await socket.SendAsync(
responseBytes,
responseBytes.Length,
udpReceiveResult.RemoteEndPoint);
writer.WriteLine($"{DateTime.Now} Finished sending response to {udpReceiveResult.RemoteEndPoint}.");
}
catch (Exception e)
{
writer.WriteLine(e.Message);
}
}
});
}
