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[KERNEL32]: Check for NULL pointer specified to lstrlenA/W and return null length, as specified in the MSDN doc and checked by the tests of r74118.

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This should remove the unwanted 1st-chance exceptions caught when debugging Office 2010 installation, that calls from time to time lstrlen with NULL pointers.

svn path=/trunk/; revision=74119
This commit is contained in:
Hermès Bélusca-Maïto 2017-03-06 19:17:53 +00:00
parent c5dde308bf
commit f606ee89dd
1 changed files with 9 additions and 1 deletions
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10
reactos/dll/win32/kernel32/winnls/string/lstring.c
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@ -27,7 +27,8 @@ lstrcmpA(LPCSTR lpString1, LPCSTR lpString2)
return 1;
Result = CompareStringA(GetThreadLocale(), 0, lpString1, -1, lpString2, -1);
if (Result) Result -= 2;
if (Result)
Result -= 2;
return Result;
}
@ -56,6 +57,7 @@ lstrcmpiA(LPCSTR lpString1, LPCSTR lpString2)
return Result;
}
/*
* @implemented
*/
@ -144,6 +146,9 @@ lstrlenA(LPCSTR lpString)
{
INT Ret = 0;
if (lpString == NULL)
return 0;
_SEH2_TRY
{
Ret = strlen(lpString);
@ -292,6 +297,9 @@ lstrlenW(LPCWSTR lpString)
{
INT Ret = 0;
if (lpString == NULL)
return 0;
_SEH2_TRY
{
Ret = wcslen(lpString);