I have written a simple server and client code in C#. As soon as the client is connected, the server will send a welcome message, a file size and a string to the client one by one and the client will display it. The client will convert the string into a string array and display it. After that the client will send an id to server and the server will display it. But the problem is, the client is not properly displaying. When I run the client program after running the server, it's displaying the following thing whereas it's supposed to display each message in a single line.
welcome1.cpp,.jpg,.png
Moreover, on the client side, The line which I have written to display the converted string array, is not working at all neither the lines after this are executing. Seems like,the code hangs. I have marked it in my code. My sample code is given below:
Server:
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;
namespace server
{
class Program
{
static void Main(string[] args)
{
// Listen on port 1234.
try
{
TcpListener tcpListener = new TcpListener(IPAddress.Any, 1234);
tcpListener.Start();
byte[] data = new byte[1024];
// Infinite loop to connect to new clients.
while (true)
{
// Accept a TcpClient
TcpClient tcpClient = tcpListener.AcceptTcpClient();
NetworkStream ns = tcpClient.GetStream();
//sending welcome message
string welcome = "welcome";
ns.Write(Encoding.ASCII.GetBytes(welcome), 0, welcome.Length);
ns.Flush();
//sending file size
string fsize = "1";
ns.Write(Encoding.ASCII.GetBytes(fsize), 0, fsize.Length);
ns.Flush();
//sending extensions
string[] extensions = { ".cpp", ".jpg", ".png" };
string str = string.Join(",", extensions);
Console.WriteLine(str);
ns.Write(Encoding.ASCII.GetBytes(str), 0, str.Length);
ns.Flush();
//receiving id
int recv = ns.Read(data, 0, data.Length);
string id = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(id);
}
}
catch (Exception e)
{
Console.Write(e.Message);
}
Console.Read();
}
}
}
Client:
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;
namespace client
{
class Program
{
static void Main(string[] args)
{
try
{
TcpClient tcpClient = new TcpClient("127.0.0.1", 1234);
NetworkStream ns = tcpClient.GetStream();
byte[] data = new byte[1024];
StreamWriter sWriter = new StreamWriter(tcpClient.GetStream());
//receiving welcome message
int recv = ns.Read(data, 0, data.Length);
string message = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine(message);
//receive filesize
int recv2 = ns.Read(data, 0, data.Length);
string message2 = Encoding.ASCII.GetString(data, 0, recv2);
Console.WriteLine(message2);
//receiving extensions
int recv1 = ns.Read(data, 0, data.Length);
string message1 = Encoding.ASCII.GetString(data, 0, recv1);
Console.WriteLine(message1);
var array2 = message1.Split(',');
foreach (string s in array2) //from this line the program isn't working
{
Console.WriteLine(s);
}
string input = Console.ReadLine();
ns.Write(Encoding.ASCII.GetBytes(input), 0, input.Length);
ns.Flush();
}
catch (Exception e)
{
Console.Write(e.Message);
}
Console.Read();
}
}
}
What's wrong in the code?
