Simon Hug
When RWops seeks with fseek or fseeko it uses the types long or off_t which can be 32 bits on some platforms. stdio_seek does not check if the 64-bit integer for the offset fits into a 32-bit integer. Offsets equal or larger than 2 GiB will have implementation-defined behavior and failure states would be very confusing to debug.
The attached patch adds range checking by using the macros from limits.h for long type and some bit shifting for off_t because POSIX couldn't be bothered to specify min and max macros.
It also defines HAVE_FSEEKI64 in SDL_config_windows.h so that the Windows function gets picked up automatically with the default config.
And there's an additional error message for when ftell fails.
Juha Niemimä
On AmigaOS 4 platform with Newlib 'C' library, there is a problem with failing fseeko64. This seemed to be caused by using fopen instead of fopen64.
Tim McDaniel
This patch replaces all use of NSAutoreleasePool with the Apple recommended @autoreleasepool. @autoreleasepool is supposedly more efficient, and since it is scope based it can't be accidentally not released.
Alex Szpakowski
Some minor changes to the Mac-specific backend code:
- Fixed up some code style issues (mostly brace style inconsistencies).
- Fixed a compiler warning in SDL_cocoaevents.m.
- Removed some useless code now that the 10.7 SDK is required to build SDL.
- Removed Gestalt(gestaltSystemVersion, ...) call and switched to NSAppKitVersionNumber for version checking code. Using Gestalt with gestaltSystemVersion will give 0x1090 in Mac OS 10.10+, and the whole Gestalt function was deprecated in Mac OS 10.8.
Philipp Wiesemann
There is a NULL pointer dereference in SDL_AllocRW() if the system is out of memory. The "type" field is always written. This may be fixed with an early return.
Or an else{} or not writing the field and using slower SDL_calloc().
This fault was recently introduced (http://hg.libsdl.org/SDL/rev/681820ca0e78).
This lets us change things like this...
if (Failed) {
SDL_SetError("We failed");
return -1;
}
...into this...
if (Failed) {
return SDL_SetError("We failed");
}
Fixes Bugzilla #1778.
