public Int32 MyRecvFrom(IntPtr Socket, IntPtr buffer, Int32 length, SendDataFlags flags, ref SockAddr from, IntPtr fromlen)
{
// this.HookClient.Log("recvfrom");
return(0);
// return recvfrom(Socket, buffer, length, flags, ref from, IntPtr.Zero);
}
private Int32 MySendTo(IntPtr Socket, IntPtr buffer, Int32 length, SendDataFlags flags, ref SockAddr To, Int32 tomlen)
{
// this.HookClient.Log("sendto");
return(0);
// return sendto(Socket, buffer, length, flags, ref To, tomlen);
}
/*
* This is the winsock hook which intercepts the "sendto" method.
*/
private int SendToHook(IntPtr Socket, IntPtr buff, int len, SendDataFlags flags, ref SockAddr To, int tomlen)
{
int returnCode = 0;
try
{
returnCode = sendto(Socket, buff, len, flags, ref To, tomlen);
if (returnCode == -1)
{
int errCode = Marshal.GetLastWin32Error();
if (errCode == (int)WSA_ERROR.WSAENOTSOCK)
{
// swallow the original eeror and spoof a good return code
this.handler.OnErrorCaptured(this.applicationName, "sendto", this.processName, errCode);
WSASetLastError(0);
returnCode = 0;
}
}
}
catch (Exception exception)
{
this.handler.OnError(this.applicationName, this.processName, exception);
}
return(returnCode);
}
public static extern Int32 sendto(IntPtr Socket, IntPtr buffer, Int32 length, SendDataFlags flags, ref SockAddr To, Int32 tomlen);
public static extern Int32 recvfrom(IntPtr Socket, IntPtr buffer, Int32 length, SendDataFlags flags, ref SockAddr from, IntPtr fromlen);
public static extern int sendto(IntPtr Socket, IntPtr buff, int len, SendDataFlags flags, ref SockAddr To, int tomlen);
