//-----------------------------------------------------------------------
//  This file is part of the Microsoft .NET Framework SDK Code Samples.
// 
//  Copyright (C) Microsoft Corporation.  All rights reserved.
// 
//This source code is intended only as a supplement to Microsoft
//Development Tools and/or on-line documentation.  See these other
//materials for detailed information regarding Microsoft code samples.
// 
//THIS CODE AND INFORMATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY
//KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
//IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//PARTICULAR PURPOSE.
//-----------------------------------------------------------------------

using System;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;
namespace Microsoft.Samples.QuickStart.HowTo.Net.TcpUdp
{

    class Client 
    {
        public static void Main(String[] args) 
        {

            TcpClient tcpc = new TcpClient();
            Byte[] read = new Byte[32];

            if (args.Length != 1) 
            {
                Console.WriteLine("Please specify a server name in the command line");
                return;
            }

            String server = args[0];

            // Verify that the server exists
            if (Dns.GetHostEntry(server) == null) 
            {
                Console.WriteLine("Cannot find server: {0}", server);
                return;
            }

            // Try to connect to the server
            try 
            {
                tcpc.Connect(server, 13);
            } 
            catch (SocketException exc) 
            {
                Console.WriteLine("Cannot connect to {0}: {1}", server, exc.Message);
                return;
            }

            // Get the stream
            Stream s = null;
			int bytes = 0;
			String time = null;

			try
			{
				s = tcpc.GetStream();
				// Read the stream and convert it to ASII
				bytes = s.Read(read, 0, read.Length);
				time = Encoding.ASCII.GetString(read);
			}
			catch (InvalidOperationException exc)
			{
				Console.WriteLine("Cannot connect to {0}: {1}", server, exc.Message);
				return;
			}
			finally 
			{
				if(tcpc != null)
					tcpc.Close();
				if (s != null)
					s.Close();
			}
			// Display the data
            Console.WriteLine("Received {0} bytes", bytes);
            Console.WriteLine("Current date and time is: {0}", time);

            
            // Wait for user response to exit
            Console.WriteLine("Press Return to exit");
            Console.Read();
        }
    }
}