void Bind_Read_End(IAsyncResult ar)
{
Bind_SO stateObj = (Bind_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
int num = NStream.EndRead(ar);
stateObj.ReadBytes += num;
if (stateObj.ReadBytes < 8)
{
//------------------------------------
// Read the response from proxy server.
//
NStream.BeginRead(_response,
stateObj.ReadBytes,
8 - stateObj.ReadBytes,
new AsyncCallback(Bind_Read_End),
stateObj);
}
else
{
VerifyResponse();
_localEndPoint = ConstructBindEndPoint(stateObj.ProxyIP);
_remoteEndPoint = null;
stateObj.SetCompleted();
}
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
}
void Connect_Read_End(IAsyncResult ar)
{
Connect_SO stateObj = (Connect_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
int num = NStream.EndRead(ar);
stateObj.ReadBytes += num;
if (stateObj.ReadBytes < 8)
{
//------------------------------------
// Read the response from proxy server.
//
NStream.BeginRead(_response,
stateObj.ReadBytes,
8 - stateObj.ReadBytes,
new AsyncCallback(Connect_Read_End),
stateObj);
}
else
{
VerifyResponse();
stateObj.SetCompleted();
}
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
}
void Bind_Write_End(IAsyncResult ar)
{
Bind_SO stateObj = (Bind_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
NStream.EndWrite(ar);
//------------------------------------
// Read the response from proxy server.
//
NStream.BeginRead(
_response,
0,
8,
new AsyncCallback(Bind_Read_End),
stateObj);
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
}
override internal IAsyncResult BeginAccept(AsyncCallback callback,
object state)
{
CheckDisposed();
Accept_SO stateObj = null;
SetProgress(true);
try
{
stateObj = new Accept_SO(callback, state);
//------------------------------------
// Read the second response from proxy server.
//
NStream.BeginRead(_response,
0,
8,
new AsyncCallback(Accept_Read_End),
stateObj);
}
catch
{
SetProgress(false);
throw;
}
return(stateObj);
}
void Connect_Read_End(IAsyncResult ar)
{
Connect_SO stateObj = (Connect_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
int num = NStream.EndRead(ar);
stateObj.ReadBytes += num;
if (stateObj.ReadBytes < 8)
{
//------------------------------------
// Read the response from proxy server.
//
NStream.BeginRead(
_response,
stateObj.ReadBytes,
8 - stateObj.ReadBytes,
new AsyncCallback(Connect_Read_End),
stateObj);
}
else
{
VerifyResponse();
//---------------------------------------
// I we unable to resolve remote host then
// store information - it will required
// later for BIND command.
if (null == stateObj.RemoteEndPoint)
{
_remotePort = stateObj.HostPort;
_remoteHost = stateObj.HostName;
}
stateObj.SetCompleted();
}
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
}