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https://github.com/reactos/reactos.git
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198 lines
5.4 KiB
C++
198 lines
5.4 KiB
C++
/*
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* regexpl - Console Registry Explorer
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*
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* Copyright (C) 2000-2005 Nedko Arnaudov <nedko@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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// ShellCommandDeleteValue.cpp: implementation of the CShellCommandDeleteValue class.
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//
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//////////////////////////////////////////////////////////////////////
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#include "ph.h"
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#include "ShellCommandDeleteValue.h"
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#include "RegistryExplorer.h"
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#include "Pattern.h"
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#define DV_CMD _T("DV")
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#define DV_CMD_LENGTH COMMAND_LENGTH(DV_CMD)
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#define DV_CMD_SHORT_DESC DV_CMD _T(" command is used to delete value.\n")
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CShellCommandDeleteValue::CShellCommandDeleteValue(CRegistryTree& rTree):m_rTree(rTree)
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{
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}
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CShellCommandDeleteValue::~CShellCommandDeleteValue()
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{
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}
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BOOL CShellCommandDeleteValue::Match(const TCHAR *pszCommand)
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{
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return _tcsicmp(pszCommand,DV_CMD) == 0;
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}
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int CShellCommandDeleteValue::Execute(CConsole &rConsole, CArgumentParser& rArguments)
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{
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rArguments.ResetArgumentIteration();
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TCHAR *pszCommandItself = rArguments.GetNextArgument();
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TCHAR *pszParameter;
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TCHAR *pszValueFull = NULL;
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BOOL blnHelp = FALSE;
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if ((_tcsnicmp(pszCommandItself,DV_CMD _T(".."),DV_CMD_LENGTH+2*sizeof(TCHAR)) == 0)||
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(_tcsnicmp(pszCommandItself,DV_CMD _T("\\"),DV_CMD_LENGTH+1*sizeof(TCHAR)) == 0))
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{
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pszValueFull = pszCommandItself + DV_CMD_LENGTH;
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}
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else if (_tcsnicmp(pszCommandItself,DV_CMD _T("/"),DV_CMD_LENGTH+1*sizeof(TCHAR)) == 0)
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{
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pszParameter = pszCommandItself + DV_CMD_LENGTH;
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goto CheckValueArgument;
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}
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while((pszParameter = rArguments.GetNextArgument()) != NULL)
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{
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CheckValueArgument:
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if ((_tcsicmp(pszParameter,_T("/?")) == 0)
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||(_tcsicmp(pszParameter,_T("-?")) == 0))
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{
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blnHelp = TRUE;
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break;
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}
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else if (!pszValueFull)
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{
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pszValueFull = pszParameter;
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}
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else
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{
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rConsole.Write(_T("Bad parameter: "));
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rConsole.Write(pszParameter);
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rConsole.Write(_T("\n"));
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}
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}
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CRegistryKey Key;
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TCHAR *pszValueNamePattern;
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const TCHAR *pszEmpty = _T("");
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const TCHAR *pszPath;
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if (blnHelp)
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{
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rConsole.Write(GetHelpString());
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return 0;
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}
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if (pszValueFull)
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{
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if (_tcscmp(pszValueFull,_T("\\")) == 0)
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goto CommandNAonRoot;
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TCHAR *pchSep = _tcsrchr(pszValueFull,_T('\\'));
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pszValueNamePattern = pchSep?(pchSep+1):(pszValueFull);
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pszPath = pchSep?pszValueFull:_T(".");
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if (pchSep)
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*pchSep = 0;
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}
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else
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{
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pszValueNamePattern = (TCHAR*)pszEmpty;
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pszPath = _T(".");
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}
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{
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size_t s = _tcslen(pszValueNamePattern);
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if (s && (pszValueNamePattern[0] == _T('\"'))&&(pszValueNamePattern[s-1] == _T('\"')))
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{
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pszValueNamePattern[s-1] = 0;
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pszValueNamePattern++;
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}
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}
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if (!m_rTree.GetKey(pszPath,KEY_QUERY_VALUE|KEY_SET_VALUE,Key))
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{
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rConsole.Write(m_rTree.GetLastErrorDescription());
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return 0;
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}
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if (!Key.IsRoot())
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{ // not root key ???
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TCHAR Buffer[254];
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DWORD dwMaxValueNameLength;
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LONG nError = Key.GetMaxValueNameLength(dwMaxValueNameLength);
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if (nError != ERROR_SUCCESS)
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{
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_stprintf(Buffer,_T("Cannot query info about %s key. Error is %u\n"),Key.GetKeyName(),(unsigned int)nError);
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rConsole.Write(Buffer);
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return 0;
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}
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TCHAR *pszValueName = new (std::nothrow) TCHAR[dwMaxValueNameLength];
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if (!pszValueName)
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{
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rConsole.Write("Out of memory.");
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return 0;
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}
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Key.InitValueEnumeration(pszValueName,dwMaxValueNameLength,NULL,0,NULL);
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while ((nError = Key.GetNextValue()) == ERROR_SUCCESS)
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{
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if (PatternMatch(pszValueNamePattern,pszValueName))
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{
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nError = Key.DeleteValue(pszValueName);
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if (nError != ERROR_SUCCESS)
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{
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_stprintf(Buffer,_T("Cannot delete value. Error is %u\n"),(unsigned int)nError);
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rConsole.Write(Buffer);
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}
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else
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{
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InvalidateCompletion();
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}
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Key.InitValueEnumeration(pszValueName,dwMaxValueNameLength,NULL,0,NULL); // reset iteration
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}
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}
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} // if (pKey)
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else
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{
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CommandNAonRoot:
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rConsole.Write(DV_CMD COMMAND_NA_ON_ROOT);
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}
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return 0;
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}
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const TCHAR * CShellCommandDeleteValue::GetHelpString()
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{
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return DV_CMD_SHORT_DESC
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_T("Syntax: ") DV_CMD _T(" [<PATH>][<VALUE_NAME>] [/?]\n\n")
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_T(" <PATH> - Optional relative path of key which value will be delete.\n")
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_T(" <VALUE_NAME> - Name pattern of key's value. Default is key's default value.\n")
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_T(" /? - This help.\n\n");
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}
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const TCHAR * CShellCommandDeleteValue::GetHelpShortDescriptionString()
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{
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return DV_CMD_SHORT_DESC;
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}
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