Leaked source code of windows server 2003
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#include "shellprv.h"
#pragma hdrstop
#include "regsuprt.h"
#ifdef DEBUG
UINT CRegSupport::_cRefHKEY = 0;
UINT CRegSupport::_cRefExternalHKEY = 0;
#endif
void CRegSupport::RSInitRoot(HKEY hkey, LPCTSTR pszSubKey1, LPCTSTR pszSubKey2,
DWORD dwRootOptions, DWORD dwDefaultOptions)
{
_dwRootOptions = dwRootOptions;
_dwDefaultOptions = dwDefaultOptions;
_hkeyInit = hkey;
_InitSetRoot(pszSubKey1, pszSubKey2);
#ifdef DEBUG
ASSERT(!_fInited);
_fInited = TRUE;
#endif
}
BOOL CRegSupport::RSSubKeyExist(LPCTSTR pszSubKey)
{
BOOL fRet = FALSE;
HKEY hkeySubKey = NULL;
_EnterCSKeyRoot();
if (pszSubKey && *pszSubKey)
hkeySubKey = _GetSubKey(pszSubKey, FALSE);
else
hkeySubKey = _GetRootKey(FALSE);
if (hkeySubKey)
{
fRet = TRUE;
_CloseRegSubKey(hkeySubKey);
}
_LeaveCSKeyRoot();
return fRet;
}
BOOL CRegSupport::RSValueExist(LPCTSTR pszSubKey, LPCTSTR pszValueName)
{
BOOL fRet = FALSE;
HKEY hkeySubKey = NULL;
_EnterCSKeyRoot();
if (pszSubKey && *pszSubKey)
hkeySubKey = _GetSubKey(pszSubKey, FALSE);
else
hkeySubKey = _GetRootKey(FALSE);
if (hkeySubKey)
{
fRet = (RegQueryValueEx(hkeySubKey, pszValueName, 0, NULL, NULL, NULL) ==
ERROR_SUCCESS);
_CloseRegSubKey(hkeySubKey);
}
_LeaveCSKeyRoot();
return fRet;
}
BOOL CRegSupport::RSDeleteValue(LPCTSTR pszSubKey, LPCTSTR pszValueName)
{
BOOL fRet = FALSE;
HKEY hkeySubKey = NULL;
_EnterCSKeyRoot();
if (pszSubKey && *pszSubKey)
hkeySubKey = _GetSubKey(pszSubKey, FALSE);
else
hkeySubKey = _GetRootKey(FALSE);
if (hkeySubKey)
{
if (ERROR_SUCCESS == RegDeleteValue(hkeySubKey, pszValueName))
{
fRet = TRUE;
}
_CloseRegSubKey(hkeySubKey);
}
_LeaveCSKeyRoot();
return fRet;
}
BOOL CRegSupport::RSDeleteKey()
{
BOOL bRet = FALSE;
TCHAR szRoot[MAX_ROOT];
if (_hkeyInit)
{
if (SHDeleteKey(_hkeyInit, _GetRoot(szRoot, ARRAYSIZE(szRoot))) == ERROR_SUCCESS)
{
bRet = TRUE;
}
}
return bRet;
}
BOOL CRegSupport::RSDeleteSubKey(LPCTSTR pszSubKey)
{
BOOL fRet = FALSE;
_EnterCSKeyRoot();
HKEY hkey = _GetRootKey(FALSE);
if (hkey)
{
if (ERROR_SUCCESS == SHDeleteKey(hkey, pszSubKey))
{
fRet = TRUE;
}
_CloseRegSubKey(hkey);
}
_LeaveCSKeyRoot();
return fRet;
}
BOOL CRegSupport::RSSetBinaryValue(LPCTSTR pszSubKey, LPCTSTR pszValueName,
PBYTE pb, DWORD cb,
DWORD dwOptions)
{
return _SetGeneric(pszSubKey, pszValueName, pb, cb, REG_BINARY, dwOptions);
}
BOOL CRegSupport::RSSetTextValue(LPCTSTR pszSubKey, LPCTSTR pszValueName,
LPCTSTR pszValue,
DWORD dwOptions)
{
return _SetGeneric(pszSubKey, pszValueName, (PBYTE)pszValue,
(lstrlen(pszValue) + 1) * sizeof(TCHAR), REG_SZ, dwOptions);
}
BOOL CRegSupport::RSSetDWORDValue(LPCTSTR pszSubKey, LPCTSTR pszValueName,
DWORD dwValue,
DWORD dwOptions)
{
return _SetGeneric(pszSubKey, pszValueName, (PBYTE)&dwValue,
sizeof(DWORD), REG_DWORD, dwOptions);
}
BOOL CRegSupport::RSGetBinaryValue(LPCTSTR pszSubKey, LPCTSTR pszValueName,
PBYTE pb, DWORD* pcb)
{
return _GetGeneric(pszSubKey, pszValueName, pb, pcb);
}
BOOL CRegSupport::RSGetTextValue(LPCTSTR pszSubKey, LPCTSTR pszValueName,
LPTSTR pszValue, DWORD* pcchValue)
{
DWORD cbData = *pcchValue * sizeof(TCHAR);
return _GetGeneric(pszSubKey, pszValueName, (PBYTE)pszValue, &cbData);
}
BOOL CRegSupport::RSGetDWORDValue(LPCTSTR pszSubKey, LPCTSTR pszValueName, DWORD* pdwValue)
{
DWORD cbData = sizeof(DWORD);
return _GetGeneric(pszSubKey, pszValueName, (PBYTE)pdwValue, &cbData);
}
BOOL CRegSupport::_SetGeneric(LPCTSTR pszSubKey, LPCTSTR pszValueName,
PBYTE pb, DWORD cb, DWORD dwType,
DWORD dwOptions)
{
BOOL fRet = FALSE;
HKEY hkeySubKey = NULL;
_EnterCSKeyRoot();
if (pszSubKey && *pszSubKey)
hkeySubKey = _GetSubKey(pszSubKey, TRUE, dwOptions);
else
hkeySubKey = _GetRootKey(TRUE, dwOptions);
if (hkeySubKey)
{
if (ERROR_SUCCESS == RegSetValueEx(hkeySubKey, pszValueName, 0,
dwType, pb, cb))
{
fRet = TRUE;
}
_CloseRegSubKey(hkeySubKey);
}
_LeaveCSKeyRoot();
return fRet;
}
BOOL CRegSupport::_GetGeneric(LPCTSTR pszSubKey, LPCTSTR pszValueName,
PBYTE pb, DWORD* pcb)
{
BOOL fRet = FALSE;
HKEY hkeySubKey = NULL;
_EnterCSKeyRoot();
if (pszSubKey && *pszSubKey)
hkeySubKey = _GetSubKey(pszSubKey, FALSE);
else
hkeySubKey = _GetRootKey(FALSE);
if (hkeySubKey)
{
if (ERROR_SUCCESS == SHQueryValueEx(hkeySubKey, pszValueName, 0,
NULL, pb, pcb))
{
fRet = TRUE;
}
_CloseRegSubKey(hkeySubKey);
}
_LeaveCSKeyRoot();
return fRet;
}
HKEY CRegSupport::RSDuplicateRootKey()
{
RIP(_fInited);
#ifdef DEBUG
// we need to decrement here since it will be icnremented inside this fct
// and the key will not be close by this object
--_cRefHKEY;
++_cRefExternalHKEY;
#endif
TCHAR szRoot[MAX_ROOT];
return _RegCreateKeyExHelper(_hkeyInit, _GetRoot(szRoot, ARRAYSIZE(szRoot)), _dwRootOptions);
}
HKEY CRegSupport::RSDuplicateSubKey(LPCTSTR pszSubKey, BOOL fCreate, BOOL fVolatile)
{
return _GetSubKey(pszSubKey, fCreate, fVolatile ? REG_OPTION_VOLATILE : REG_OPTION_NON_VOLATILE);
}
HKEY CRegSupport::_GetRootKey(BOOL fCreate, DWORD dwOptions)
{
RIP(_fInited);
HKEY hkey;
TCHAR szRoot[MAX_ROOT];
if (REG_OPTION_INVALID == dwOptions)
dwOptions = _dwRootOptions;
if (fCreate)
hkey = _RegCreateKeyExHelper(_hkeyInit, _GetRoot(szRoot, ARRAYSIZE(szRoot)), dwOptions);
else
hkey = _RegOpenKeyExHelper(_hkeyInit, _GetRoot(szRoot, ARRAYSIZE(szRoot)));
return hkey;
}
void CRegSupport::_CloseRegSubKey(HKEY hkeySubKey)
{
RegCloseKey(hkeySubKey);
#ifdef DEBUG
--_cRefHKEY;
#endif
}
// Always need to be called from within the _csRootKey critical section (when critical section
// stuff is enabled)
HKEY CRegSupport::_GetSubKey(LPCTSTR pszSubKey, BOOL fCreate, DWORD dwOptions)
{
HKEY hkey = NULL;
HKEY hRootKey = _GetRootKey(fCreate, dwOptions);
if (REG_OPTION_INVALID == dwOptions)
dwOptions = _dwDefaultOptions;
if (hRootKey)
{
if (fCreate)
hkey = _RegCreateKeyExHelper(hRootKey, pszSubKey, dwOptions);
else
hkey = _RegOpenKeyExHelper(hRootKey, pszSubKey);
_CloseRegSubKey(hRootKey);
}
return hkey;
}
//static
HKEY CRegSupport::_RegCreateKeyExHelper(HKEY hkey, LPCTSTR pszSubKey, DWORD dwOptions)
{
HKEY hkeyTmp;
DWORD dwDisp;
ASSERT(REG_OPTION_INVALID != dwOptions);
if (ERROR_SUCCESS != RegCreateKeyEx(hkey, pszSubKey, 0, NULL,
dwOptions, MAXIMUM_ALLOWED, NULL, &hkeyTmp, &dwDisp))
{
hkeyTmp = NULL;
}
#ifdef DEBUG
else
{
++_cRefHKEY;
}
#endif
return hkeyTmp;
}
//static
HKEY CRegSupport::_RegOpenKeyExHelper(HKEY hkey, LPCTSTR pszSubKey)
{
HKEY hkeyTmp;
if (ERROR_SUCCESS != RegOpenKeyEx(hkey, pszSubKey, 0,
MAXIMUM_ALLOWED, &hkeyTmp))
{
hkeyTmp = NULL;
}
#ifdef DEBUG
else
{
++_cRefHKEY;
}
#endif
return hkeyTmp;
}
BOOL CRegSupport::_InitSetRoot(LPCTSTR pszSubKey1, LPCTSTR pszSubKey2)
{
_pszSubKey1 = pszSubKey1;
_pszSubKey2 = pszSubKey2;
return TRUE;
}
LPCTSTR CRegSupport::_GetRoot(LPTSTR pszRoot, DWORD cchRoot)
{
ASSERT(cchRoot > 0);
LPTSTR pszNext;
size_t cchLeft;
HRESULT hr;
hr = StringCchCopyEx(pszRoot, cchRoot, _pszSubKey1, &pszNext, &cchLeft, 0);
if (SUCCEEDED(hr))
{
if (_pszSubKey2)
{
hr = StringCchCopyEx(pszNext, cchLeft, TEXT("\\"), &pszNext, &cchLeft, 0);
if (SUCCEEDED(hr))
{
hr = StringCchCopy(pszNext, cchLeft, _pszSubKey2);
}
}
}
if (FAILED(hr))
{
*pszRoot = 0;
}
return pszRoot;
}
void CRegSupport::_EnterCSKeyRoot()
{
if (_fcsKeyRoot)
{
EnterCriticalSection(&_csKeyRoot);
}
}
void CRegSupport::_LeaveCSKeyRoot()
{
if (_fcsKeyRoot)
{
LeaveCriticalSection(&_csKeyRoot);
}
}
CRegSupport::CRegSupport() : _hkeyInit(NULL)
{}
CRegSupport::~CRegSupport()
{
if (_fcsKeyRoot)
{
DeleteCriticalSection(&_csKeyRoot);
}
}