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Windows : fix call to LookupAccountNameW

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The call to LookupAccountNameW from advapi32 was rewritten following
the example:
http://msdn.microsoft.com/en-us/library/aa392742%28v=vs.85%29.aspx
This prevents the generation of a garbage pointer when accessing
QWindowsSystemProxy::init() for Qt compiled as 64bit library
with MinGW-w64.

Task-number: QTBUG-39874
Task-number: QTBUG-38145
Change-Id: I620b2fa64941f84838f9a386851480285336e8d1
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Richard J. Moore <rich@kde.org>
This commit is contained in:
Antonio Lotti 2014-12-17 15:55:09 +01:00 committed by Richard J. Moore
parent 83a3292342
commit dcedbce99a
1 changed files with 11 additions and 4 deletions
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15
src/network/kernel/qnetworkproxy_win.cpp
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@ -130,10 +130,17 @@ static bool currentProcessIsService()
DWORD size = UNLEN;
if (ptrGetUserName(userName, &size)) {
SID_NAME_USE type = SidTypeUser;
DWORD dummy = MAX_PATH;
wchar_t dummyStr[MAX_PATH] = L"";
PSID psid = 0;
if (ptrLookupAccountName(NULL, userName, &psid, &dummy, dummyStr, &dummy, &type))
DWORD sidSize = 0;
DWORD domainSize = 0;
// first call is to get the correct size
bool bRet = ptrLookupAccountName(NULL, userName, NULL, &sidSize, NULL, &domainSize, &type);
if (bRet == FALSE && ERROR_INSUFFICIENT_BUFFER != GetLastError())
return false;
QVarLengthArray<BYTE, 68> buff(sidSize);
QVarLengthArray<wchar_t, MAX_PATH> domainName(domainSize);
// second call to LookupAccountNameW actually gets the SID
// both the pointer to the buffer and the pointer to the domain name should not be NULL
if (ptrLookupAccountName(NULL, userName, buff.data(), &sidSize, domainName.data(), &domainSize, &type))
return type != SidTypeUser; //returns true if the current user is not a user
}
}