Source code of Windows XP (NT5)
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// PPServerClass.cpp : Implementation of CPPServerClass
#include "stdafx.h"
#include "PPServer.h"
#include "PPServerClass.h"
/////////////////////////////////////////////////////////////////////////////
// Keys
#define REG_LOCAL_TS_LOC _T("SOFTWARE\\Microsoft")
#define REG_LOCAL_TS_PROGRAM _T("TShoot")
// Values ///////////////////////////////////////////////////////////////////
#define SNIFF_AUTOMATIC_STR _T("AutomaticSniffing")
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// CPPServerClass
bool CPPServerClass::Create(HKEY hKeyParent, LPCTSTR strKeyName, bool* bCreatedNew, REGSAM access)
{
HKEY hRetKey = NULL;
DWORD dwDisposition = 0;
long nWinError = ::RegCreateKeyEx(
hKeyParent,
strKeyName,
0,
NULL,
REG_OPTION_NON_VOLATILE,
access,
NULL,
&hRetKey,
&dwDisposition
);
if(nWinError == ERROR_SUCCESS)
{
m_hKey = hRetKey;
*bCreatedNew = dwDisposition == REG_CREATED_NEW_KEY ? true : false;
try
{
m_arrKeysToClose.push_back(hRetKey);
}
catch (exception&)
{
return false;
}
return true;
}
return false;
}
bool CPPServerClass::SetNumericValue(LPCTSTR strValueName, DWORD dwValue)
{
BYTE* pData = (BYTE*)&dwValue;
long nWinError = ::RegSetValueEx(
m_hKey,
strValueName,
0,
REG_DWORD,
pData,
sizeof(DWORD)
);
if (nWinError == ERROR_SUCCESS)
return true;
return false;
}
bool CPPServerClass::GetNumericValue(LPCTSTR strValueName, DWORD& dwValue)
{
DWORD tmp = 0;
BYTE* pData = (BYTE*)&tmp;
DWORD type = 0;
DWORD size = sizeof(DWORD);
long nWinError = ::RegQueryValueEx(
m_hKey,
strValueName,
NULL,
&type,
pData,
&size
);
if (type != REG_DWORD)
return false;
if (nWinError == ERROR_SUCCESS)
{
dwValue = tmp;
return true;
}
return false;
}
void CPPServerClass::Close()
{
for (vector<HKEY>::reverse_iterator i = m_arrKeysToClose.rbegin(); i != m_arrKeysToClose.rend(); i++)
::RegCloseKey( *i );
m_arrKeysToClose.clear();
}
STDMETHODIMP CPPServerClass::AllowAutomaticSniffing(VARIANT *pvarShow)
{
bool was_created = false;
DWORD dwAllowSniffing = 1;
// [BC - 20010302] - Changed regsitry access level from WRITE to QUERY and READ. Write access
// not allowed for certain user accts, such as WinXP built in guest acct. Write access should
// not be required by this component.
if (Create(HKEY_LOCAL_MACHINE, REG_LOCAL_TS_LOC, &was_created, KEY_QUERY_VALUE))
{
if (Create(m_hKey, REG_LOCAL_TS_PROGRAM, &was_created, KEY_READ))
{
// this call can be not successfull, if there is no such value.
// BUT we do not set this value,
// we leave dwAllowSniffing as initialized ("1")
// This approach will comply the "Sniffing version 3.2.doc" statement,
// that if "AutomaticSniffing" value is missed, we treat it as set to "1"
GetNumericValue(SNIFF_AUTOMATIC_STR, dwAllowSniffing);
}
}
Close();
::VariantInit(pvarShow);
V_VT(pvarShow) = VT_I4;
if (dwAllowSniffing == 1)
pvarShow->lVal = 1;
else
pvarShow->lVal = 0;
return S_OK;
}