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kernelbase: Add IsBadStringPtr() replacement functions. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
stable
Alexandre Julliard 2019-12-10 11:12:20 +01:00
parent 7b3c0fbed2
commit 0235e51465
1 changed files with 36 additions and 0 deletions
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36
dlls/kernelbase/memory.c
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@ -390,6 +390,42 @@ BOOL WINAPI DECLSPEC_HOTPATCH WriteProcessMemory( HANDLE process, void *addr, co
}
/* IsBadStringPtrA replacement for kernelbase, to catch exception in debug traces. */
BOOL WINAPI IsBadStringPtrA( LPCSTR str, UINT_PTR max )
{
if (!str) return TRUE;
__TRY
{
volatile const char *p = str;
while (p != str + max) if (!*p++) break;
}
__EXCEPT_PAGE_FAULT
{
return TRUE;
}
__ENDTRY
return FALSE;
}
/* IsBadStringPtrW replacement for kernelbase, to catch exception in debug traces. */
BOOL WINAPI IsBadStringPtrW( LPCWSTR str, UINT_PTR max )
{
if (!str) return TRUE;
__TRY
{
volatile const WCHAR *p = str;
while (p != str + max) if (!*p++) break;
}
__EXCEPT_PAGE_FAULT
{
return TRUE;
}
__ENDTRY
return FALSE;
}
/***********************************************************************
* Heap functions
***********************************************************************/