Socket Client/Server

[KACY5]

I want to make a program so that the server reads from a file (c:/test.txt) and send data to the client, and it writes to another file (c:/info2.txt).

The problem this poses is that I could not figure out that when the client stops receiving, it should call me to send nothing but how to do a program like that?

here is the my source code


Client:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.IO;
namespace Script_Client
{
    class Program
    {
        static void Main(string[] args)
        {
            TcpClient c = new TcpClient("localhost", 8080);
            Stream str = c.GetStream();
            byte[] b=new byte[100];
            string line = null; 
            StreamWriter fluxInfos = null; 
            try
            {
                fluxInfos = new StreamWriter("c:/infos2.txt" );
                    while(str.Read(b,0,50)!=-1)
                    {
                            line = Encoding.ASCII.GetString(b);
                            Console.WriteLine(line);
                            fluxInfos.WriteLine(line);
                    }
            }
            catch (Exception e)
            {
                Console.WriteLine("The following error occurred: " + e.Message);
            }
            Console.ReadLine();
        }
    }
}

Server:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;
namespace Play
{
    class Program
    {
        static void Main(string[] args)
        {
            IPHostEntry iphe = Dns.Resolve("localhost" );
            IPEndPoint ipep = new IPEndPoint(iphe.AddressList[0], 8080);
            TcpListener s = new TcpListener(ipep);
            s.Start();
            TcpClient c = s.AcceptTcpClient();
            Stream str = c.GetStream();
            byte[] b;
            String line = null;
            StreamReader fluxInfos = null;
            try
            {
                fluxInfos = new StreamReader("c:/Test.txt" );
                    line = fluxInfos.ReadLine();
                    while (line != null)
                    {
                        Console.WriteLine(line);
                        b = Encoding.ASCII.GetBytes(line);
                        str.Write(b, 0, b.Length);
                        line = fluxInfos.ReadLine();
                    }
            }
            catch (Exception e)
            {
                Console.WriteLine("The following error occurred: " + e.Message);
            }
            System.Console.ReadLine();
        }
    }
}

[DotNetUser]

You can try to use a special character to indicate the end. You can use a special character unprintable, it seems that there is a character to signal the end of file (EOF).Basically there are special characters that are not friendly, throw a glance on the side of the ASCII table.

[KACY5]

Yes I can but it's not a very good solution. If I use $ then I have a $ in my text, its definitely going to be a problem. I'm not very surprised but I know the special characters are unprintable. Its mean anything?

[!const]

In fact you have in principle nothing to do knowing that you work with the flow. The method "Read" returns "0" when the flow is finished: http://msdn.microsoft.com/en-us/libr...ream.read.aspx

The read method return the total number of bytes read into the buffer. This can be less than the number of bytes requested if that many bytes are not currently available, or zero (0) if the end of the stream has been reached.

[KACY5]

I made a new program that allows me to read line by line at the server (StreamReader / StreamWriter) and sent to the client, the problem that this poses is that the customer does not always know when it stops, it turns into a infinite loop but server stops at end of file:

Client:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.IO;
namespace Script_Client
{
    class Program
    {
        static void Main(string[] args)
        {
            TcpClient c = new TcpClient("localhost", 8080);
            NetworkStream networkStream = c.GetStream();
            StreamReader streamReader = new StreamReader(networkStream);
            String theString;           
            StreamWriter fluxInfos = null;
            try
            {
                fluxInfos = new StreamWriter("c:/infos2.txt" );
                theString = streamReader.ReadLine();
                while (theString!="" )
                    {
                        Console.WriteLine(theString);
                        theString = streamReader.ReadLine();
                         fluxInfos.WriteLine(theString);
                    }
            }
            catch (Exception e)
            {
                Console.WriteLine("The following error occurred: " + e.Message);
            }
            streamReader.Close();
            networkStream.Close();
            c.Close();
        }
    }
}

Server:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;
namespace Play
{
    class Program
    {
        static void Main(string[] args)
        {
            IPHostEntry iphe = Dns.Resolve("localhost" );
            IPEndPoint ipep = new IPEndPoint(iphe.AddressList[0], 8080);
            TcpListener s = new TcpListener(ipep);
            s.Start();
            TcpClient c = s.AcceptTcpClient();
            NetworkStream networkStream = c.GetStream();
            StreamWriter streamWriter = new StreamWriter(networkStream);
            streamWriter.AutoFlush = true;
            String line = null;
            StreamReader fluxInfos = null;
            try
            {
                fluxInfos = new StreamReader("c:/Test.txt" );
                    line = fluxInfos.ReadLine();
                    while (line!= null)
                    {
                        Console.WriteLine(line);
                        streamWriter.WriteLine(line);
                        line = fluxInfos.ReadLine();
                    }
            }
            catch (Exception e)
            {
                Console.WriteLine("The following error occurred: " + e.Message);
            }
            networkStream.Close();
            streamWriter.Close();
            //c.Close();
            System.Console.ReadLine();
        }
    }
}