Esempio n. 1
0
        /// <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);
        }
Esempio n. 2
0
        /// <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);
        }