mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-12-29 01:58:48 +01:00
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This software is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this software; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
// -=- WMShatter.h
|
|
//
|
|
// WMShatter provides the IsSafeWM routine, which returns true iff the
|
|
// supplied window message is safe to pass to DispatchMessage, or to
|
|
// process in the window procedure.
|
|
//
|
|
// This is only required, of course, to avoid so-called "shatter" attacks
|
|
// to be made against the VNC server, which take advantage of the noddy
|
|
// design of the Win32 window messaging system.
|
|
//
|
|
// The API here is designed to hopefully be future proof, so that if they
|
|
// ever come up with a proper way to determine whether a message is safe
|
|
// or not then it can just be reimplemented here...
|
|
|
|
#ifndef __RFB_WIN32_SHATTER_H__
|
|
#define __RFB_WIN32_SHATTER_H__
|
|
|
|
#include <windows.h>
|
|
|
|
namespace rfb {
|
|
namespace win32 {
|
|
|
|
bool IsSafeWM(HWND window, UINT msg, WPARAM wParam, LPARAM lParam);
|
|
|
|
LRESULT SafeDefWindowProc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
|
|
|
LRESULT SafeDispatchMessage(const MSG* msg);
|
|
|
|
};
|
|
};
|
|
|
|
#endif // __RFB_WIN32_SHATTER_H__
|