C++/현재 로그인한 사용자의 SID 구하기

DWORD GetProcessIDFromName(LPTSTR szProcName)
{
	PROCESSENTRY32 procEntry;
	HANDLE hSnapshot;
	BOOL bFound;
 
	if(!(hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0))) return 0;
	procEntry.dwSize = sizeof(PROCESSENTRY32);
 
	bFound = Process32First(hSnapshot, &procEntry);
	while(bFound) {
		if(!lstrcmp(procEntry.szExeFile, szProcName)) {
			CloseHandle(hSnapshot);
			return procEntry.th32ProcessID;
		}
		bFound = Process32Next(hSnapshot, &procEntry);
	}
 
	CloseHandle(hSnapshot);
	return 0;
}

BOOL GetCurrentUserSID(CString *csSid)
{
	DWORD dwProcessID = GetProcessIDFromName(_T("explorer.exe"));
	if( 0 == dwProcessID )
	{
		return FALSE;
	}

#ifndef _RELEASE_WIN9X
	HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, dwProcessID);
	if( hProc == NULL )
	{
		return FALSE;
	}
	HANDLE hToken;
	if( !OpenProcessToken(hProc, TOKEN_QUERY, &hToken) )
	{
		CloseHandle(hProc);
		return FALSE;
	}
	CloseHandle(hProc);
	BOOL bRet = FALSE;
	TOKEN_USER *pTokenUser;
	DWORD Len;
	TCHAR* pBuffer = NULL;
	if( !GetTokenInformation(hToken, TokenUser, NULL, 0, &Len) )
	{
		if( GetLastError() ==  ERROR_INSUFFICIENT_BUFFER )
		{
			pBuffer = new TCHAR[Len];
			if( !GetTokenInformation(hToken,TokenUser, pBuffer, Len, &Len) )
			{
				delete pBuffer;
				CloseHandle(hToken);
				return FALSE;
			}
		}
		else
		{
			CloseHandle(hToken);
			return FALSE;
		}
	}

pTokenUser = (TOKEN_USER*)pBuffer;
	TCHAR *szStringSID;
	if( FALSE == ConvertSidToStringSid(pTokenUser->User.Sid, &szStringSID) )
	{
		CloseHandle(hToken);
		return FALSE;
	}
	else
	{
		(*csSid).Format(_T("%s"), szStringSID);
		//std::string strTemp = szStringSID;
		LocalFree(szStringSID);
		//strSID = strTemp;
	}
	CloseHandle(hToken);

#endif _RELEASE_WIN9X
	return TRUE;
}

CString strSid;
if (GetCurrentUserSID(&strSid))
{
	D0(_T("%s"), strSid);
}

-> S-1-5-21-41567755-2767001670-2024363275-1000