Mercurial > sdl-ios-xcode
view src/video/maccommon/SDL_lowvideo.h @ 4355:9b464226e541 SDL-1.2
Fixed bug #855
Ludwig Nussel 2009-10-18 06:31:52 PDT
an mprotect call was added to fix bug 528. However that results in a buffer
that allows writing and code execution. Ie the no-execute security features of
modern operating systems are defeated this way. Two mprotect calls are needed.
One to make the buffer executable but not writeable when done and another one
to make the buffer writeable again if the content needs to be changed.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 18 Oct 2009 17:31:37 +0000 |
| parents | a1b03ba2fcd0 |
| children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_lowvideo_h #define _SDL_lowvideo_h #if defined(__APPLE__) && defined(__MACH__) #include <Carbon/Carbon.h> #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335) #include <Carbon.h> #else #include <Quickdraw.h> #include <Palettes.h> #include <Menus.h> #include <DrawSprocket.h> #endif #if SDL_VIDEO_OPENGL typedef struct __AGLContextRec *AGLContext; #endif #include "SDL_video.h" #include "../SDL_sysvideo.h" /* Hidden "this" pointer for the video functions */ #define _THIS SDL_VideoDevice *this #if !TARGET_API_MAC_CARBON /* not available in OS X (or more accurately, Carbon) */ /* Global QuickDraw data */ extern QDGlobals *theQD; #endif /* Private display data */ struct SDL_PrivateVideoData { GDevice **SDL_Display; WindowRef SDL_Window; SDL_Rect **SDL_modelist; CTabHandle SDL_CTab; PaletteHandle SDL_CPal; #if TARGET_API_MAC_CARBON /* For entering and leaving fullscreen mode */ Ptr fullscreen_ctx; #endif /* The current window document style */ int current_style; /* Information about the last cursor position */ Point last_where; /* Information about the last keys down */ EventModifiers last_mods; KeyMap last_keys; /* A handle to the Apple Menu */ MenuRef apple_menu; /* Information used by DrawSprocket driver */ struct DSpInfo *dspinfo; #if SDL_VIDEO_OPENGL AGLContext appleGLContext; void *libraryHandle; #endif }; /* Old variable names */ #define SDL_Display (this->hidden->SDL_Display) #define SDL_Window (this->hidden->SDL_Window) #define SDL_modelist (this->hidden->SDL_modelist) #define SDL_CTab (this->hidden->SDL_CTab) #define SDL_CPal (this->hidden->SDL_CPal) #define fullscreen_ctx (this->hidden->fullscreen_ctx) #define current_style (this->hidden->current_style) #define last_where (this->hidden->last_where) #define last_mods (this->hidden->last_mods) #define last_keys (this->hidden->last_keys) #define apple_menu (this->hidden->apple_menu) #define glContext (this->hidden->appleGLContext) #endif /* _SDL_lowvideo_h */