/// <summary>
/// Processes the packet and returns a response.
/// </summary>
/// <param name="packetInfo">The <see cref="Acn.Sntp.Sockets.NewPacketEventArgs"/> instance containing the event data.</param>
protected void ProcessPacket(NewPacketEventArgs packetInfo)
{
NtpData data = packetInfo.Packet;
data.LeapIndicator = LeapIndicator.NoWarning;
data.VersionNumber = 4;
data.Mode = NtpMode.Server;
data.Stratum = NtpStratum.PrimaryReference;
data.RootDispersion = 0;
data.RootDelay = 0;
data.ReferenceID = "LOCL";
data.ReceiveTimestamp = packetInfo.RecievedTime;
data.CopyTransmitToOriginate();
data.TransmitTimestamp = DateTime.UtcNow;
socket.Send(packetInfo.SourceEndPoint, data);
}
/// <summary>
/// Gets the time delta from an NTP server.
/// Does one round trip.
/// </summary>
/// <param name="host">The host.</param>
/// <param name="timeSocket">The time socket.</param>
/// <returns>The returned time packet</returns>
private NtpData GetTimeDelta(IPEndPoint host, UdpClient timeSocket)
{
// Initialize data structure
NtpData sendData = new NtpData();
sendData.Initialize(4, NtpMode.Client, DateTime.Now);
byte[] sendBytes = sendData.ToArray();
timeSocket.Send(sendBytes, sendBytes.Length);
NtpData receiveData = new NtpData(timeSocket.Receive(ref host));
receiveData.ReceptionTimestamp = DateTime.Now;
if (!receiveData.IsResponseValid())
{
throw new Exception("Invalid response from " + TimeServer);
}
return(receiveData);
}