File Transfer using C# .Net Socket Programming 3/3

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Server Code:

[C#]

using System;

using System.Collections.Generic;

using System.Text;

using System.Net;

using System.Net.Sockets;

using System.IO;

namespace beginSocketServer

{

//FILE TRANSFER USING C#.NET SOCKET PROGRAMMING - SERVER

class Program

{

static void Main(string[] args)

{

try

{

Console.WriteLine("That program can transfer small file. I've test up to 850kb file");

IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, 5656);

Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);

sock.Bind(ipEnd);

sock.Listen(100);

Socket clientSock = sock.Accept();

byte[] clientData = new byte[1024 * 5000];

string receivedPath = "e:/";

int receivedBytesLen = clientSock.Receive(clientData);

int fileNameLen = BitConverter.ToInt32(clientData, 0);

string fileName = Encoding.ASCII.GetString(clientData, 4, fileNameLen);

Console.WriteLine("Client:{0} connected & File {1} started received.", clientSock.RemoteEndPoint, fileName);

BinaryWriter bWrite = new BinaryWriter(File.Open(receivedPath + fileName, FileMode.Append)); ;

bWrite.Write(clientData, 4 + fileNameLen, receivedBytesLen - 4 - fileNameLen);

Console.WriteLine("File: {0} received & saved at path: {1}", fileName, receivedPath);

bWrite.Close();

clientSock.Close();

Console.ReadLine();

}

catch (Exception ex)

{

Console.WriteLine("File Receiving fail." + ex.Message);

}

}

}

}

[Visual Basic]

Imports System

Imports System.Collections.Generic

Imports System.Text

Imports System.Net

Imports System.Net.Sockets

Imports System.IO

Namespace beginSocketServer

'FILE TRANSFER USING C#.NET SOCKET PROGRAMMING- SERVER

Class Program

Private Shared Sub Main(ByVal args As String())

Try

Console.WriteLine("That program can transfer small file. I've test up to 850kb file")

Dim ipEnd As New IPEndPoint(IPAddress.Any, 5656)

Dim sock As New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP)

sock.Bind(ipEnd)

sock.Listen(100)

Dim clientSock As Socket = sock.Accept()

Dim clientData As Byte() = New Byte(1024 5000 - 1) {}

Dim receivedPath As String = "e:/"

Dim receivedBytesLen As Integer = clientSock.Receive(clientData)

Dim fileNameLen As Integer = BitConverter.ToInt32(clientData, 0)

Dim fileName As String = Encoding.ASCII.GetString(clientData, 4, fileNameLen)

Console.WriteLine("Client:{0} connected & File {1} started received.", clientSock.RemoteEndPoint, fileName)

Dim bWrite As New BinaryWriter(File.Open(receivedPath + fileName, FileMode.Append))

bWrite.Write(clientData, 4 + fileNameLen, receivedBytesLen - 4 - fileNameLen)

Console.WriteLine("File: {0} received & saved at path: {1}", fileName, receivedPath)

bWrite.Close()

clientSock.Close()

Console.ReadLine()

Catch ex As Exception

Console.WriteLine("File Receiving fail." & ex.Message)

End Try

End Sub

End Class

End Namespace

Synchronous Server Socket using Network Stream in C# .Net Programming

Hi frends,I’m back again with two sample socket application. These two project also for beginner’s in C#.Net Socket world. One of these is Server socket application and another is Client socket application. Both application has used NetworkStream class to send and receive data between Client and Server. These two has written based on previous articles on Socket programming and these are very easy to learn. I hope any one can understood these very easyly. If you feel any problem then please reply me via comment I will response these.

Here Server socket with Network stream in C# has written and in different blog post contains the client application. Both two has written based on synchronous communication mode, but in future I will show you, how you can built asynchronous socket application by these synchronous socket. So lets starts code.

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace NetworkStreamSocketServer
{
class Program
{
static void Main(string[] args)
{
IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, 5656);
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
sock.Bind(ipEnd);
sock.Listen(100);
Socket clientSock = sock.Accept();
byte[] clientData = new byte[1024];

//With other Socket server application difference only here.
//Create an Network stream object and wait for client's request
NetworkStream ns = new NetworkStream(clientSock);

//Wait for new connection and to receive data from client
int receivedBytesLen = ns.Read(clientData, 0, clientData.Length);
string clientDataInString = Encoding.ASCII.GetString(clientData, 0, receivedBytesLen);
ns.Flush();//Free Stream buffer
Console.WriteLine("Received Data {0}", clientDataInString);

string clientStr = "Client Data Received";
byte[] sendData = new byte[1024];
sendData = Encoding.ASCII.GetBytes(clientStr);
//Now network stream object send some data to client
ns.Write(sendData, 0, sendData.Length);
//Release all resources
ns.Close();
clientSock.Close();
Console.ReadLine();
}
}
}

Synchronous Server Socket using Network Stream in C# .Net Programming

Hi frends,I’m back again with two sample socket application. These two project also for beginner’s in C#.Net Socket world. One of these is Server socket application and another is Client socket application. Both application has used NetworkStream class to send and receive data between Client and Server. These two has written based on previous articles on Socket programming and these are very easy to learn. I hope any one can understood these very easyly. If you feel any problem then please reply me via comment I will response these.

Here Server socket with Network stream in C# has written and in different blog post contains the client application. Both two has written based on synchronous communication mode, but in future I will show you, how you can built asynchronous socket application by these synchronous socket. So lets starts code.

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace NetworkStreamSocketServer
{
class Program
{
static void Main(string[] args)
{
IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, 5656);
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
sock.Bind(ipEnd);
sock.Listen(100);
Socket clientSock = sock.Accept();
byte[] clientData = new byte[1024];

//With other Socket server application difference only here.
//Create an Network stream object and wait for client's request
NetworkStream ns = new NetworkStream(clientSock);

//Wait for new connection and to receive data from client
int receivedBytesLen = ns.Read(clientData, 0, clientData.Length);
string clientDataInString = Encoding.ASCII.GetString(clientData, 0, receivedBytesLen);
ns.Flush();//Free Stream buffer
Console.WriteLine("Received Data {0}", clientDataInString);

string clientStr = "Client Data Received";
byte[] sendData = new byte[1024];
sendData = Encoding.ASCII.GetBytes(clientStr);
//Now network stream object send some data to client
ns.Write(sendData, 0, sendData.Length);
//Release all resources
ns.Close();
clientSock.Close();
Console.ReadLine();
}
}
}