System.Net.Security.NegotiateStream.Write C# (CSharp) Method

        public override void Write(byte[] buffer, int offset, int count)
        {
#if DEBUG
            using (DebugThreadTracking.SetThreadKind(ThreadKinds.User | ThreadKinds.Sync))
            {
#endif
                _negoState.CheckThrow(true);

                if (!_negoState.CanGetSecureStream)
                {
                    InnerStream.Write(buffer, offset, count);
                    return;
                }

                ProcessWrite(buffer, offset, count, null);
#if DEBUG
            }
#endif
        }

        public static void Main(string[] args)
        {
            if(args.Length != 1)
            {
                Console.WriteLine("need ipadress ");
                return;
            }
            IPAddress ipAddress = IPAddress.Parse(args[0]);
            int port = 7681;

            TcpClient client = new TcpClient();
            client.ConnectAsync(ipAddress, port).Wait();
            Console.WriteLine("connected");
            using (NegotiateStream stream = new NegotiateStream(client.GetStream()))
            {
                Console.WriteLine("authenticating");
                stream.AuthenticateAsClientAsync(CredentialCache.DefaultNetworkCredentials, null, "HOST/skapilac10.fareast.corp.microsoft.com").Wait();
                Console.WriteLine("authenticated");
                var sendBuffer = Encoding.UTF8.GetBytes("Request from client");
                stream.Write(sendBuffer, 0, sendBuffer.Length);
                var recvBuffer = new byte[1024];
                var byteCount = stream.Read(recvBuffer, 0, recvBuffer.Length);
                Console.WriteLine("Recieved: {0}", Encoding.UTF8.GetString(recvBuffer, 0, byteCount));
            }
        }