Piotr Caban : msvcrt: Return error if last known character is further in the string then current character.
Alexandre Julliard
julliard at wine.codeweavers.com
Mon Dec 21 15:10:33 CST 2015
Module: wine
Branch: master
Commit: 9f532321d0bb88fc1bd321de44c89c64122acceb
URL: http://source.winehq.org/git/wine.git/?a=commit;h=9f532321d0bb88fc1bd321de44c89c64122acceb
Author: Piotr Caban <piotr at codeweavers.com>
Date: Mon Dec 21 11:22:55 2015 +0100
msvcrt: Return error if last known character is further in the string then current character.
Signed-off-by: Piotr Caban <piotr at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/msvcrt/mbcs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/dlls/msvcrt/mbcs.c b/dlls/msvcrt/mbcs.c
index e7adaad..56945bb 100644
--- a/dlls/msvcrt/mbcs.c
+++ b/dlls/msvcrt/mbcs.c
@@ -520,6 +520,9 @@ unsigned int CDECL _mbcjmstojis(unsigned int c)
*/
unsigned char* CDECL _mbsdec(const unsigned char* start, const unsigned char* cur)
{
+ if(start >= cur)
+ return NULL;
+
if(get_mbcinfo()->ismbcodepage)
return (unsigned char *)(_ismbstrail(start,cur-1) ? cur - 2 : cur -1);
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