"No connection could be made because the target machine a

Question

i am writing a program to transfer file using socket programing in c# i am getting this error

 

"No connection could be made because the target machine actively refused it ::1:5656"

 

my code where error is occuring is

IPAddress[] ipAddress = Dns.GetHostAddresses("localhost");

IPEndPoint ipEnd = new IPEndPoint(ipAddress[0], 5656);

Socket clientSock = new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.IP);

string filePath = "";

fileName = fileName.Replace("\\", "/");

while (fileName.IndexOf("/") > -1)

{

filePath += fileName.Substring(0, fileName.IndexOf("/") + 1);

fileName = fileName.Substring(fileName.IndexOf("/") + 1);

}

byte[] fileNameByte = Encoding.ASCII.GetBytes(fileName);

if (fileNameByte.Length > 850 * 1024)

{

curMsg = "File size is more than 850kb, please try with small file.";

return;

}

curMsg = "Buffering ...";

byte[] fileData = File.ReadAllBytes(filePath + fileName);

byte[] clientData = new byte[4 + fileNameByte.Length + fileData.Length];

byte[] fileNameLen = BitConverter.GetBytes(fileNameByte.Length);

fileNameLen.CopyTo(clientData, 0);

fileNameByte.CopyTo(clientData, 4);

fileData.CopyTo(clientData, 4 + fileNameByte.Length);

curMsg = "Connection to server ...";

clientSock.Connect(ipEnd); // here i am getting the error 

curMsg = "File sending...";

clientSock.Send(clientData);

curMsg = "Disconnecting...";

clientSock.Close();

curMsg = "File transferred.";