private long readBytes(long lastMaxOffset)
{
_reader.BaseStream.Seek(lastMaxOffset, SeekOrigin.Begin);
var buffer = new byte[_hexEncoder.BlockLength];
var buffPos = 0;
int i;
i = _reader.BaseStream.ReadByte();
while (i != -1)
{
buffer[buffPos] = (byte)i;
buffPos++;
if (buffPos == _hexEncoder.BlockLength)
{
var l = _hexEncoder.GetHex(_address, buffer);
Session.AddEvent(this, l);
_address += (ulong)buffPos;
buffPos = 0;
}
i = _reader.BaseStream.ReadByte();
}
lastMaxOffset = _reader.BaseStream.Position;
return(lastMaxOffset);
}
/// <summary>
/// This is where all the actual 'listening' is done.
/// </summary>
protected void Listen()
{
if (Session == null)
{
throw new NullReferenceException("This IListener has no Session yet!");
}
IPEndPoint remoteEndPoint;
if (_endpoint == "ANY")
{
remoteEndPoint = new IPEndPoint(IPAddress.Any, _port);
}
else
{
remoteEndPoint = new IPEndPoint(IPAddress.Parse(_endpoint), _port);
}
var buffer = new Byte[256];
string loggingEvent;
try
{
_tcpListener = new System.Net.Sockets.TcpListener(remoteEndPoint);
_tcpListener.Start();
_log.Info(GetHashCode(), "Started listening for TCP on port " + _port.ToString() + " using prefix: " + MessagePrefix);
while (true)
{
var client = _tcpListener.AcceptTcpClient();
var sender = "";
if (Session.Viewer.ShowListenerPrefix)
{
sender = client.Client.RemoteEndPoint.ToString();
}
var data = "";
var stream = client.GetStream();
int i;
if (_encName == HexEncoder.EncName)
{
data = _hexEncoder.GetHex(_address, buffer);
}
else
{
// Loop to receive all the data sent by the client.
while ((i = stream.Read(buffer, 0, buffer.Length)) != 0)
{
data += Encoding.GetEncoding(_encName).GetString(buffer, 0, i);
}
}
// Shutdown and end connection
client.Close();
loggingEvent = sender + " " + data;
Session.AddEvent(this, loggingEvent);
}
}
catch (SocketException ex)
{
var foo = "(TCP ERROR) The TCP listener could not be started at port " + _port.ToString() + " " + Environment.NewLine + ex.Message;
_log.Error(GetHashCode(), foo);
Session.AddEvent(this, foo);
}
catch (ThreadAbortException)
{
var foo = "(TCP ERROR) TcpListener aborted.";
_log.Error(GetHashCode(), foo);
Session.AddEvent(this, foo);
}
catch (Exception e)
{
var foo = "(TCP ERROR) Internal error in TcpListener: " + e.Message + Environment.NewLine + e.StackTrace;
_log.Error(GetHashCode(), foo);
Session.AddEvent(this, foo);
}
finally
{
if (_tcpListener != null)
{
_tcpListener.Stop();
}
}
}
/// <summary>
/// This is where all the actual 'listening' is done.
/// </summary>
protected void Listen()
{
if (Session == null)
{
throw new NullReferenceException("This IListener has no Session yet!");
}
IPEndPoint remoteEndPoint;
if (_endpoint == "ANY")
{
remoteEndPoint = new IPEndPoint(IPAddress.Any, _port);
}
else
{
remoteEndPoint = new IPEndPoint(IPAddress.Parse(_endpoint), _port);
}
byte[] buffer;
string loggingEvent;
_hexEncoder = new HexEncoder();
try
{
_udpClient = new UdpClient(_port);
_log.Info(GetHashCode(), "Started listening for UDP on port " + _port.ToString() + " using prefix: " + MessagePrefix);
while (true)
{
buffer = _udpClient.Receive(ref remoteEndPoint);
var sender = "";
if (Session.Viewer.ShowListenerPrefix)
{
sender = remoteEndPoint.Address.ToString() + " ";
}
if (_encName == HexEncoder.EncName)
{
loggingEvent = sender + _hexEncoder.GetHex(_address, buffer);
_address += (ulong)buffer.Length;
}
else
{
loggingEvent = sender + Encoding.GetEncoding(_encName).GetString(buffer);
}
Session.AddEvent(this, loggingEvent);
}
}
catch (SocketException ex)
{
var foo = "(UDP ERROR) The UDP listener could not be started at port " + _port.ToString() + " " + Environment.NewLine + ex.Message;
_log.Error(GetHashCode(), foo);
Session.AddEvent(this, foo);
}
catch (ThreadAbortException)
{
var foo = "(UDP) UdpListener thread aborted.";
_log.Error(GetHashCode(), foo);
Session.AddEvent(this, foo);
}
catch (Exception e)
{
var foo = "(UDP ERROR) Internal error in UdpListener: " + e.Message + Environment.NewLine + e.StackTrace;
_log.Error(GetHashCode(), foo);
Session.AddEvent(this, foo);
}
finally
{
if (_udpClient != null)
{
_udpClient.Close();
}
}
}
