reactos/rosapps/sysutils/regexpl/RegistryKey.cpp

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/* $Id: RegistryKey.cpp,v 1.6 2002/09/03 18:44:18 chorns Exp $
*
* regexpl - Console Registry Explorer
*
* Copyright (C) 2000,2001 Nedko Arnaoudov <nedkohome@atia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
// RegistryKey.cpp: implementation of the CRegistryKey class.
//
//////////////////////////////////////////////////////////////////////
#include "ph.h"
#include "RegistryKey.h"
static TCHAR *g_ppszHiveNames[] =
{
_T("HKEY_CLASSES_ROOT"),
_T("HKEY_CURRENT_USER"),
_T("HKEY_LOCAL_MACHINE"),
_T("HKEY_USERS"),
_T("HKEY_PERFORMANCE_DATA"),
_T("HKEY_CURRENT_CONFIG"),
_T("HKEY_DYN_DATA")
};
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CRegistryKey::CRegistryKey()
{
m_pszKeyName = NULL;
m_pszMachineName = NULL;
m_CurrentAccess = 0;
m_hKey = NULL;
}
HRESULT CRegistryKey::InitRoot(const TCHAR *pszMachineName)
{
if ((pszMachineName)&&
((_tcslen(pszMachineName) < 3)||
(pszMachineName[0] != _T('\\'))||
(pszMachineName[1] != _T('\\'))
)
)
{
return E_INVALIDARG;
}
HRESULT hr = Uninit();
if (FAILED(hr))
return hr;
if (pszMachineName)
{ // copy machine name
size_t size = _tcslen(pszMachineName);
m_pszMachineName = new TCHAR [size+2];
if (!m_pszMachineName)
return E_OUTOFMEMORY;
_tcscpy(m_pszMachineName,pszMachineName);
m_pszMachineName[size] = _T('\\');
m_pszMachineName[size+1] = 0;
}
else
{
m_pszMachineName = NULL; // local registry
}
ASSERT(m_pszKeyName == NULL);
m_CurrentAccess = 0;
ASSERT(m_hKey == NULL);
return S_OK;
}
HRESULT CRegistryKey::Init(HKEY hKey, const TCHAR *pszPath, const TCHAR *pszKeyName, REGSAM CurrentAccess)
{
HRESULT hr = Uninit();
if (FAILED(hr))
return hr;
if (!pszKeyName || !hKey)
return E_INVALIDARG;
// copy key name name
size_t size = _tcslen(pszKeyName);
if (pszPath)
size += _tcslen(pszPath);
m_pszKeyName = new TCHAR [size+2];
if (!m_pszKeyName)
return E_OUTOFMEMORY;
_stprintf(m_pszKeyName,_T("%s%s\\"),pszPath?pszPath:_T(""),pszKeyName);
m_CurrentAccess = CurrentAccess;
m_hKey = hKey;
ASSERT(m_hKey);
return S_OK;
}
HRESULT CRegistryKey::Uninit()
{
if (m_pszKeyName)
{
delete [] m_pszKeyName;
m_pszKeyName = NULL;
}
if (m_pszMachineName)
{
delete [] m_pszMachineName;
m_pszMachineName = NULL;
}
LONG nError = ERROR_SUCCESS;
if((m_hKey != NULL)&&(!IsHive(m_hKey)))
nError = RegCloseKey(m_hKey);
m_hKey = NULL;
return (nError == ERROR_SUCCESS)?S_OK:E_FAIL;
}
BOOL CRegistryKey::IsHive(HKEY hKey)
{
return ((hKey == HKEY_CLASSES_ROOT)||
(hKey == HKEY_CURRENT_USER)||
(hKey == HKEY_LOCAL_MACHINE)||
(hKey == HKEY_USERS)||
(hKey == HKEY_PERFORMANCE_DATA)||
(hKey == HKEY_CURRENT_CONFIG)||
(hKey == HKEY_DYN_DATA));
}
CRegistryKey::~CRegistryKey()
{
Uninit();
}
const TCHAR * CRegistryKey::GetKeyName()
{
return m_pszKeyName?m_pszKeyName:(m_pszMachineName?m_pszMachineName:_T("\\"));
}
BOOL CRegistryKey::IsRoot()
{
return m_hKey == NULL;
}
LONG CRegistryKey::OpenSubkey(REGSAM samDesired, const TCHAR *pszSubkeyName, HKEY &rhKey)
{
if (m_hKey == NULL)
{ // subkey of root key is hive root key.
if ((_tcsicmp(pszSubkeyName,_T("HKCR")) == 0)||
(_tcsicmp(pszSubkeyName,_T("HKEY_CLASSES_ROOT")) == 0))
{
rhKey = HKEY_CLASSES_ROOT;
if (m_pszMachineName)
return ERROR_FILE_NOT_FOUND;
return ERROR_SUCCESS;
}
else if ((_tcsicmp(pszSubkeyName,_T("HKCU")) == 0)||
(_tcsicmp(pszSubkeyName,_T("HKEY_CURRENT_USER")) == 0))
{
rhKey = HKEY_CURRENT_USER;
if (m_pszMachineName)
return ERROR_FILE_NOT_FOUND;
return ERROR_SUCCESS;
}
else if ((_tcsicmp(pszSubkeyName,_T("HKLM")) == 0)||
(_tcsicmp(pszSubkeyName,_T("HKEY_LOCAL_MACHINE")) == 0))
{
rhKey = HKEY_LOCAL_MACHINE;
if (m_pszMachineName)
return RegConnectRegistry(m_pszMachineName,rhKey,&rhKey);
return ERROR_SUCCESS;
}
else if ((_tcsicmp(pszSubkeyName,_T("HKU")) == 0)||
(_tcsicmp(pszSubkeyName,_T("HKEY_USERS")) == 0))
{
rhKey = HKEY_USERS;
if (m_pszMachineName)
return RegConnectRegistry(m_pszMachineName,rhKey,&rhKey);
return ERROR_SUCCESS;
}
else if ((_tcsicmp(pszSubkeyName,_T("HKPD")) == 0)||
(_tcsicmp(pszSubkeyName,_T("HKEY_PERFORMANCE_DATA")) == 0))
{
rhKey = HKEY_PERFORMANCE_DATA;
if (m_pszMachineName)
return RegConnectRegistry(m_pszMachineName,rhKey,&rhKey);
return ERROR_SUCCESS;
}
else if ((_tcsicmp(pszSubkeyName,_T("HKDD")) == 0)||
(_tcsicmp(pszSubkeyName,_T("HKEY_DYN_DATA")) == 0))
{
rhKey = HKEY_DYN_DATA;
if (m_pszMachineName)
return RegConnectRegistry(m_pszMachineName,rhKey,&rhKey);
return ERROR_SUCCESS;
}
else if ((_tcsicmp(pszSubkeyName,_T("HKCC")) == 0)||
(_tcsicmp(pszSubkeyName,_T("HKEY_CURRENT_CONFIG")) == 0))
{
rhKey = HKEY_CURRENT_CONFIG;
if (m_pszMachineName)
{
TCHAR *pch = m_pszMachineName;
while (*pch)
pch++;
pch--;
ASSERT(*pch == _T('\\'));
if (*pch != _T('\\'))
return ERROR_INTERNAL_ERROR;
*pch = 0;
LONG nError = RegConnectRegistry(m_pszMachineName,rhKey,&rhKey);
*pch = _T('\\');
return nError;
}
return ERROR_SUCCESS;
}
else
{
return ERROR_FILE_NOT_FOUND;
}
}
return RegOpenKeyEx(m_hKey,pszSubkeyName,0,samDesired,&rhKey);
}
LONG CRegistryKey::OpenSubkey(REGSAM samDesired, const TCHAR *pszSubkeyName, CRegistryKey &rKey)
{
HKEY hKey;
LONG nError = OpenSubkey(samDesired, pszSubkeyName, hKey);
if (nError == ERROR_SUCCESS)
{
const TCHAR *pszKeyName = GetKeyName();
size_t size = _tcslen(pszKeyName) + _tcslen(pszSubkeyName) + 1;
TCHAR *pszSubkeyFullName = new TCHAR [size];
if (!pszSubkeyFullName)
{
nError = RegCloseKey(hKey);
ASSERT(nError == ERROR_SUCCESS);
return ERROR_OUTOFMEMORY;
}
_tcscpy(pszSubkeyFullName,pszKeyName);
_tcscat(pszSubkeyFullName,pszSubkeyName);
HRESULT hr = rKey.Init(hKey,GetKeyName(),pszSubkeyName,samDesired);
delete pszSubkeyName;
if (FAILED(hr))
{
nError = RegCloseKey(hKey);
ASSERT(nError == ERROR_SUCCESS);
if (hr == (HRESULT)E_OUTOFMEMORY)
return ERROR_OUTOFMEMORY;
else
return ERROR_INTERNAL_ERROR;
}
}
return nError;
}
LONG CRegistryKey::GetSubkeyNameMaxLength(DWORD &rdwMaxSubkeyNameLength)
{
if (m_hKey == NULL)
{ // root key
rdwMaxSubkeyNameLength = 0;
for(int i = 0; i < 7 ; i++)
{
size_t l = _tcslen(g_ppszHiveNames[i]);
if (rdwMaxSubkeyNameLength < l)
rdwMaxSubkeyNameLength = l;
}
rdwMaxSubkeyNameLength++; // terminating null
return ERROR_SUCCESS;
}
LONG nRet;
nRet = RegQueryInfoKey(m_hKey,NULL,NULL,NULL,NULL,&rdwMaxSubkeyNameLength,NULL,NULL,NULL,NULL,NULL,NULL);
rdwMaxSubkeyNameLength = (nRet == ERROR_SUCCESS)?(rdwMaxSubkeyNameLength+1):0;
return nRet;
}
void CRegistryKey::InitSubkeyEnumeration(TCHAR *pszSubkeyNameBuffer, DWORD dwBufferSize)
{
m_pchSubkeyNameBuffer = pszSubkeyNameBuffer;
m_dwSubkeyNameBufferSize = dwBufferSize;
m_dwCurrentSubKeyIndex = 0;
}
LONG CRegistryKey::GetNextSubkeyName(DWORD *pdwActualSize)
{
LONG nError;
if (m_hKey == NULL)
{
if (m_dwCurrentSubKeyIndex < (DWORD)(m_pszMachineName?5:7))
{
DWORD dwIndex = m_pszMachineName?m_dwCurrentSubKeyIndex+2:m_dwCurrentSubKeyIndex;
_tcsncpy(m_pchSubkeyNameBuffer,g_ppszHiveNames[dwIndex],m_dwSubkeyNameBufferSize);
nError = ERROR_SUCCESS;
if (pdwActualSize)
*pdwActualSize = strlen(m_pchSubkeyNameBuffer);
}
else
{
nError = ERROR_NO_MORE_ITEMS;
}
}
else
{
DWORD dwActualSize = m_dwSubkeyNameBufferSize;
FILETIME ft;
nError = RegEnumKeyEx(m_hKey,
m_dwCurrentSubKeyIndex,
m_pchSubkeyNameBuffer,
&dwActualSize,
NULL,
NULL,
NULL,
&ft);
if (pdwActualSize)
*pdwActualSize = dwActualSize;
}
m_dwCurrentSubKeyIndex++;
if (pdwActualSize)
*pdwActualSize = strlen(m_pchSubkeyNameBuffer);
return nError;
}
LONG CRegistryKey::GetSubkeyCount(DWORD &rdwSubkeyCount)
{
return RegQueryInfoKeyW(m_hKey,NULL,NULL,NULL,&rdwSubkeyCount,NULL,NULL,NULL,NULL,NULL,NULL,NULL);
}
LONG CRegistryKey::GetMaxValueDataSize(DWORD& rdwMaxValueDataBuferSize)
{
return RegQueryInfoKeyW(m_hKey,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,&rdwMaxValueDataBuferSize,NULL,NULL);
}
LONG CRegistryKey::GetMaxValueNameLength(DWORD& rdwMaxValueNameBuferSize)
{
rdwMaxValueNameBuferSize = 0;
if (!m_hKey)
return 0; // the root key abstraction has only subkeys (hives)
LONG nError = RegQueryInfoKeyW(m_hKey,NULL,NULL,NULL,NULL,NULL,NULL,NULL,&rdwMaxValueNameBuferSize,NULL,NULL,NULL);
rdwMaxValueNameBuferSize++;
return nError;
}
void CRegistryKey::InitValueEnumeration(TCHAR *pszValueNameBuffer,
DWORD dwValueNameBufferSize,
BYTE *pbValueDataBuffer,
DWORD dwValueDataBufferSize,
DWORD *pdwType)
{
m_pszValueNameBuffer = pszValueNameBuffer;
m_dwValueNameBufferSize = dwValueNameBufferSize;
m_pbValueDataBuffer = pbValueDataBuffer;
m_dwValueDataBufferSize = dwValueDataBufferSize;
m_pdwType = pdwType;
m_dwCurrentValueIndex = 0;
}
// On input dwValueNameSize is size in characters of buffer pointed by pchValueNameBuffer
// On output dwValueNameSize contains number of characters stored in buffer
LONG CRegistryKey::GetNextValue(DWORD *pdwNameActualSize, DWORD *pdwDataActualSize)
{
if (!m_hKey)
return ERROR_NO_MORE_ITEMS; // the root key abstraction has only subkeys (hives)
DWORD dwValueNameBufferSize = m_dwValueNameBufferSize;
DWORD dwValueDataBufferSize = m_dwValueDataBufferSize;
LONG nError = RegEnumValue(m_hKey,
m_dwCurrentValueIndex,
m_pszValueNameBuffer,
&dwValueNameBufferSize,
NULL,
m_pdwType,
m_pbValueDataBuffer,
&dwValueDataBufferSize);
if (pdwNameActualSize)
*pdwNameActualSize = dwValueNameBufferSize;
if (pdwDataActualSize)
*pdwDataActualSize = dwValueDataBufferSize;
m_dwCurrentValueIndex++;
return nError;
}
LONG CRegistryKey::GetValueCount(DWORD& rdwValueCount)
{
if (!m_hKey)
return 0; // the root key abstraction has only subkeys (hives)
return RegQueryInfoKeyW(m_hKey,NULL,NULL,NULL,NULL,NULL,NULL,&rdwValueCount,NULL,NULL,NULL,NULL);
}
LONG CRegistryKey::GetDefaultValue(DWORD *pdwType,
BYTE *pbValueDataBuffer,
DWORD dwValueDataBufferSize,
DWORD *pdwValueDataActualSize)
{
DWORD dwBufferSize = dwValueDataBufferSize;
LONG nError = RegQueryValueEx(m_hKey,NULL,NULL,pdwType,pbValueDataBuffer,&dwBufferSize);
if (pdwValueDataActualSize && (nError == ERROR_SUCCESS))
*pdwValueDataActualSize = dwBufferSize;
return nError;
}
const TCHAR * CRegistryKey::GetValueTypeName(DWORD dwType)
{
switch(dwType)
{
case REG_NONE:
return _T("REG_NONE");
case REG_SZ:
return _T("REG_SZ");
case REG_EXPAND_SZ:
return _T("REG_EXPAND_SZ");
case REG_BINARY:
return _T("REG_BINARY");
case REG_DWORD_LITTLE_ENDIAN:
return _T("REG_DWORD_LITTLE_ENDIAN");
case REG_DWORD_BIG_ENDIAN:
return _T("REG_DWORD_BIG_ENDIAN");
case REG_LINK:
return _T("REG_LINK");
case REG_MULTI_SZ:
return _T("REG_MULTI_SZ");
case REG_RESOURCE_LIST:
return _T("REG_RESOURCE_LIST");
case REG_FULL_RESOURCE_DESCRIPTOR:
return _T("REG_FULL_RESOURCE_DESCRIPTOR");
case REG_RESOURCE_REQUIREMENTS_LIST:
return _T("REG_RESOURCE_REQUIREMENTS_LIST");
default:
return _T("Unkown Type");
}
}
DWORD CRegistryKey::GetValue(TCHAR *pchValueName, DWORD *pdwType, LPBYTE lpValueDataBuffer, DWORD *pdwValueDataSize)
{
return RegQueryValueEx(m_hKey,pchValueName,NULL,pdwType,lpValueDataBuffer,pdwValueDataSize);
}
LONG CRegistryKey::CreateSubkey(REGSAM samDesired,
const TCHAR *pszSubkeyName,
HKEY &rhKey,
BOOL *pblnOpened,
BOOL blnVolatile)
{
DWORD dwDisposition;
LONG nError = RegCreateKeyEx(
m_hKey,
pszSubkeyName,
0,
NULL,
blnVolatile?REG_OPTION_VOLATILE:REG_OPTION_NON_VOLATILE,
samDesired,
NULL,
&rhKey,
&dwDisposition);
if ((nError == ERROR_SUCCESS)&&(pblnOpened))
*pblnOpened = dwDisposition == REG_OPENED_EXISTING_KEY;
return nError;
}
LONG CRegistryKey::GetLastWriteTime(SYSTEMTIME &st)
{
FILETIME ftLocal,ft;
LONG nError = RegQueryInfoKeyW(m_hKey,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,&ft);
if (nError == ERROR_SUCCESS)
{
FileTimeToLocalFileTime(&ft,&ftLocal);
FileTimeToSystemTime(&ftLocal,&st);
}
return nError;
}
const TCHAR * CRegistryKey::GetLastWriteTime()
{
SYSTEMTIME st;
if (GetLastWriteTime(st) != ERROR_SUCCESS)
return _T("(Cannot get time last write time)");
static TCHAR Buffer[256];
_stprintf(Buffer,_T("%d.%d.%d %02d:%02d:%02d"),st.wDay,st.wMonth,st.wYear,st.wHour,st.wMinute,st.wSecond);
return Buffer;
}
LONG CRegistryKey::GetSecurityDescriptorLength(DWORD *pdwSecurityDescriptor)
{
return RegQueryInfoKeyW(m_hKey,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
NULL,NULL,pdwSecurityDescriptor,NULL);
}
LONG CRegistryKey::GetSecurityDescriptor(SECURITY_INFORMATION SecurityInformation, PSECURITY_DESCRIPTOR pSecurityDescriptor, LPDWORD lpcbSecurityDescriptor)
{
return RegGetKeySecurity(m_hKey,SecurityInformation,pSecurityDescriptor,lpcbSecurityDescriptor);
}
LONG CRegistryKey::DeleteSubkey(const TCHAR *pszSubkeyName)
{
return RegDeleteKey(m_hKey,pszSubkeyName);
}
LONG CRegistryKey::SetValue(LPCTSTR pszValueName, DWORD dwType, BYTE *lpData, DWORD dwDataSize)
{
return RegSetValueEx(m_hKey,pszValueName,0,dwType,lpData,dwDataSize);
}
LONG CRegistryKey::DeleteValue(const TCHAR *pszValueName)
{
return RegDeleteValue(m_hKey,pszValueName);
}