Mercurial > sdl-ios-xcode
annotate src/video/Xext/README @ 4511:ae7799d16c87
Daniel Wyatt 2010-03-26 14:52:53 PDT
If a non-console Windows SDL program has a non-quoted 0th argument followed
optionally by more non-quoted arguments and then by an empty quoted argument,
it will crash (attempts to dereference a NULL pointer).
In other words, something like this:
test.exe [non-quoted args] "" [...]
The fix is a one-liner in ParseCommandLine() of
src/main/win32/SDL_win32_main.c.
You can test this with any non-console SDL program on windows like this:
1) Open a console (cmd.exe)
2) Launch the program in one of the following ways:
program ""
program arg1 ""
program arg1 "" arg3
These will not cause a crash:
"program" [...]
program "arg1" ""
When a Windows program is launched from Explorer, its 0th argument seems to
always be quoted, so it won't be a problem in that case.
I've tested this on Windows XP SP3 and Windows 7.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 12 Jul 2010 22:08:50 -0700 |
parents | b87d8d4c205d |
children |
rev | line source |
---|---|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
2 The reason these libraries are built outside of the standard XFree86 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
3 tree is so that they can be linked as shared object code directly into |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
4 SDL without causing any symbol collisions with code in the application. |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
5 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
6 You can't link static library code into shared libraries on non-x86 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
7 Linux platforms. Since these libraries haven't become standard yet, |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
8 we'll just include them directly. |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
9 |
690
b87d8d4c205d
Fixed use of SDL with XInitThreads()
Sam Lantinga <slouken@libsdl.org>
parents:
292
diff
changeset
|
10 These sources are synchronized with XFree86 4.2.1 |