internal virtual FTPDataSocket NewActiveDataSocket(int port)
{
BaseSocket sock = new StandardSocket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
this.log.Debug("NewActiveDataSocket(" + port + ")");
IPEndPoint localEP = new IPEndPoint(((IPEndPoint) this.controlSock.LocalEndPoint).Address, port);
sock.Bind(localEP);
sock.Listen(5);
this.SetDataPort((IPEndPoint) sock.LocalEndPoint);
}
catch (Exception exception)
{
this.log.Error("Failed to create listening socket", exception);
sock.Close();
throw;
}
return new FTPActiveDataSocket(sock);
}
/// <summary>
/// Constructs a new <code>FTPDataSocket</code> object (server mode) which will
/// listen on the given port number.
/// </summary>
/// <param name="port">Remote port to listen on.
/// </param>
/// <returns> A new <code>FTPDataSocket</code> object (server mode) which is
/// configured to listen on the given port.
/// </returns>
/// <throws> SystemException Thrown if an error occurred when creating the socket. </throws>
internal virtual FTPDataSocket NewActiveDataSocket(int port)
{
// create listening socket at a system allocated port
BaseSocket sock =
new StandardSocket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// choose any port
IPEndPoint endPoint = new IPEndPoint(((IPEndPoint)controlSock.LocalEndPoint).Address, 0);
sock.Bind(endPoint);
// queue up to 5 connections
sock.Listen(5);
// find out ip & port we are listening on
SetDataPort((IPEndPoint)sock.LocalEndPoint);
return new FTPActiveDataSocket(sock);
}
/// <summary>
/// Constructs a new <code>FTPDataSocket</code> object (server mode) which will
/// listen on the given port number.
/// </summary>
/// <param name="port">Remote port to listen on.
/// </param>
/// <returns> A new <code>FTPDataSocket</code> object (server mode) which is
/// configured to listen on the given port.
/// </returns>
/// <throws> SystemException Thrown if an error occurred when creating the socket. </throws>
internal virtual FTPDataSocket NewActiveDataSocket(int port)
{
// create listening socket at a system allocated port
BaseSocket sock =
new StandardSocket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp, logTag);
try
{
log.Debug("NewActiveDataSocket(" + port + ")");
// choose specified port and listen on all interfaces
IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, port);
sock.Bind(endPoint);
// queue up to 5 connections
sock.Listen(5);
// send the *control socket IP* to the server with the listening socket's port
endPoint = new IPEndPoint(((IPEndPoint)controlSock.LocalEndPoint).Address, ((IPEndPoint)sock.LocalEndPoint).Port);
SetDataPort(endPoint);
}
catch (Exception ex)
{
log.Error("Failed to create listening socket", ex);
sock.Close();
throw;
}
return new FTPActiveDataSocket(sock);
}