824 lines
23 KiB
C++
824 lines
23 KiB
C++
//#pragma title( "TReg.cpp - NT registry class" )
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/*
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Copyright (c) 1995-1998, Mission Critical Software, Inc. All rights reserved.
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===============================================================================
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Module - TReg.cpp
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System - Common
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Author - Tom Bernhardt, Rich Denham
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Created - 1995-09-01
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Description - NT registry class.
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Updates -
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===============================================================================
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*/
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#ifdef USE_STDAFX
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# include "stdafx.h"
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#else
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# include <windows.h>
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include "Common.hpp"
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#include "UString.hpp"
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#include "Err.hpp"
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#include "TNode.hpp"
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#include "TReg.hpp"
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// Short term solution
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#define MAX_REG_NAMELEN 512
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#define MAX_REG_VALUELEN 2048
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// Destructor function was formerly inline.
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// It is here to facilitate handle leak tracing.
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TRegKey::~TRegKey()
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{
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Close();
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};
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// Close function was formerly inline.
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// It is here to facilitate handle leak tracing.
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void
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TRegKey::Close()
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{
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if ( hKey != INVALID_HANDLE_VALUE )
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{
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RegCloseKey( hKey );
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hKey = (HKEY) INVALID_HANDLE_VALUE;
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}
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};
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// open registry on remote computer
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DWORD
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TRegKey::Connect(
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HKEY hPreDefined ,// in -must be HKEY_LOCAL_MACHINE or HKEY_USERS
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TCHAR const * machineName // in -remote computer name
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)
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{
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LONG rc; // return code
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if ( hKey != INVALID_HANDLE_VALUE )
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{
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Close();
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}
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rc = RegConnectRegistry( const_cast<TCHAR *>(machineName), hPreDefined, &hKey );
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if ( rc )
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{
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hKey = (HKEY) INVALID_HANDLE_VALUE;
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}
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return (DWORD)rc;
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}
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// create new key
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DWORD
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TRegKey::Create(
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TCHAR const * keyname ,// in -name/path of key to create/open
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HKEY hParent ,// in -handle of parent key
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DWORD * pDisp ,// out-disposition of create
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DWORD access // in -security access mask for key
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)
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{
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DWORD disp;
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LONG rc;
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if ( hKey != INVALID_HANDLE_VALUE )
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{
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Close();
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}
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rc = RegCreateKeyEx( hParent,
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keyname,
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0,
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NULL,
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REG_OPTION_NON_VOLATILE,
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access,
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NULL,
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&hKey,
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(pDisp!=NULL) ? pDisp : &disp );
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if ( rc )
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{
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hKey = (HKEY) INVALID_HANDLE_VALUE;
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}
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return (DWORD)rc;
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}
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// create new key (using backup/restore)
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DWORD
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TRegKey::CreateBR(
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TCHAR const * keyname ,// in -name/path of key to create/open
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HKEY hParent ,// in -handle of parent key
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DWORD * pDisp ,// out-disposition of create
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DWORD access // in -security access mask for key
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)
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{
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DWORD disp;
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LONG rc;
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if ( hKey != INVALID_HANDLE_VALUE )
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{
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Close();
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}
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rc = RegCreateKeyEx( hParent,
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keyname,
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0,
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NULL,
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REG_OPTION_BACKUP_RESTORE,
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access,
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NULL,
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&hKey,
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(pDisp!=NULL) ? pDisp : &disp );
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if ( rc )
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{
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hKey = (HKEY) INVALID_HANDLE_VALUE;
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}
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return (DWORD)rc;
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}
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// open existing key
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DWORD
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TRegKey::Open(
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TCHAR const * keyname ,// in -name/path of key to create/open
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HKEY hParent ,// in -handle of parent key
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DWORD access // in -security access mask for key
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)
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{
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LONG rc;
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if ( hKey != INVALID_HANDLE_VALUE )
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{
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Close();
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}
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rc = RegOpenKeyEx( hParent,
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keyname,
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0,
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access,
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&hKey );
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if ( rc )
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{
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hKey = (HKEY) INVALID_HANDLE_VALUE;
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}
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return (DWORD)rc;
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}
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// Gets the subkey value of the specified index number
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DWORD // ret-os return code
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TRegKey::SubKeyEnum(
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DWORD n ,// in -ordinal number of subkey
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TCHAR * keyname ,// out-key name
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DWORD keylen // in -max size of key name in TCHARs
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) const
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{
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LONG rc;
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DWORD keyLen = keylen;
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FILETIME lastWrite;
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rc = RegEnumKeyEx( hKey,
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n,
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keyname,
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&keyLen,
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0,
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NULL,
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NULL,
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&lastWrite );
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return (DWORD)rc;
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}
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// Enumerate value
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DWORD // ret-0 or error code
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TRegKey::ValueEnum(
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DWORD index ,// in -ordinal number of subkey
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TCHAR * name ,// out-name
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DWORD namelen ,// in -name size in TCHARs
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void * value ,// out-value
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DWORD * valuelen ,// i/o-value size in BYTEs
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DWORD * type // out-value type code
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) const
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{
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return (DWORD)RegEnumValue( hKey, index, name, &namelen, NULL, type, (BYTE *) value, valuelen );
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}
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// Get REG_DWORD value
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DWORD // ret-OS return code
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TRegKey::ValueGetDWORD(
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TCHAR const * name ,// in -value name
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DWORD * value // out-returned DWORD value
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) const
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{
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LONG osRc; // OS return code
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DWORD type; // type of value
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DWORD len = sizeof *value; // value length
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osRc = RegQueryValueEx( hKey, name, NULL, &type, (BYTE *) value, &len );
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if ( !osRc && (type != REG_DWORD) )
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{
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osRc = ERROR_FILE_NOT_FOUND;
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}
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return (DWORD)osRc;
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}
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// Get REG_SZ value
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DWORD // ret-OS return code
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TRegKey::ValueGetStr(
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TCHAR const * name ,// in -value name
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TCHAR * value ,// out-value buffer
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DWORD maxlen // in -sizeof value buffer
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) const
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{
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LONG osRc; // OS return code
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DWORD type; // type of value
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DWORD len; // value length
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// force maxlen to an integral number of TEXT characters
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maxlen = maxlen / (sizeof value[0]) * (sizeof value[0]);
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if ( !maxlen )
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{
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osRc = ERROR_FILE_NOT_FOUND;
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}
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else
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{
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len = maxlen;
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osRc = RegQueryValueEx( hKey, name, NULL, &type, (BYTE *) value, &len );
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len = len / (sizeof value[0]) * (sizeof value[0]);
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if ( !osRc && (type != REG_SZ) )
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{
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osRc = ERROR_FILE_NOT_FOUND;
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}
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if ( osRc )
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{
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value[0] = TEXT('\0');
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}
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else
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{ // return of a null-terminated string is not guaranteed by API!
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// force null-terminated string, truncate string if necessary.
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if ( len >= maxlen )
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{
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len = maxlen - sizeof value[0];
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}
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value[len/(sizeof value[0])] = TEXT('\0');
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}
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}
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return (DWORD)osRc;
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}
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DWORD
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TRegKey::ValueGet(
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TCHAR const * name ,// in -name
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void * value ,// out-value
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DWORD * lenvalue ,// i/o-length of value
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DWORD * typevalue // out-type of value
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) const
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{
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return (DWORD)RegQueryValueEx( hKey, name, 0, typevalue, (UCHAR *) value, lenvalue );
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}
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// Set REG_SZ value
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DWORD
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TRegKey::ValueSetStr(
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TCHAR const * name ,// in -value name
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TCHAR const * value ,// out-value
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DWORD type // in -value type
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) const
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{
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return (DWORD)RegSetValueEx( hKey,
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name,
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NULL,
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type,
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(LPBYTE) value,
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(UStrLen(value) + 1) * sizeof value[0] );
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}
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DWORD
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TRegKey::ValueSet(
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TCHAR const * name ,// in -name
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void const * value ,// in -value
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DWORD lenvalue ,// in -length of value
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DWORD typevalue // in -type of value
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) const
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{
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return (DWORD)RegSetValueEx( hKey,
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name,
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0,
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typevalue,
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(UCHAR const *) value,
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lenvalue );
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}
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DWORD // ret-0 or error code
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TRegKey::ValueDel(
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TCHAR const * name // in -value name
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) const
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{
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LONG rc;
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rc = (DWORD)RegDeleteValue(hKey, name);
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return rc;
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}
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DWORD // ret-OS return code
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TRegKey::HiveCopy(
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TRegKey const * source // in -source hive
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)
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{
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DWORD retval=0; // returned value
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DWORD index; // key/value index
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TCHAR name[MAX_REG_NAMELEN]; // key name
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TCHAR value[MAX_REG_VALUELEN]; // value name
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DWORD valuelen; // value length
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DWORD type; // value type
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TRegKey srcNest; // nested source registry
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TRegKey trgNest; // nested target registry
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// process values at this level
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for ( index = 0;
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!retval;
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index++ )
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{
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valuelen = sizeof value;
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retval = source->ValueEnum( index, name, MAX_REG_NAMELEN, value, &valuelen, &type );
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if ( !retval )
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{
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retval = this->ValueSet( name, value, valuelen, type );
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}
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else if ( retval == ERROR_MORE_DATA )
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{
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retval = 0;
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}
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}
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if ( retval == ERROR_NO_MORE_ITEMS )
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{
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retval = 0;
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}
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// process keys at this level; for each key make a recursive call
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for ( index = 0;
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!retval;
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index++ )
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{
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retval = source->SubKeyEnum( index, name, MAX_REG_NAMELEN );
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if ( !retval )
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{
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retval = srcNest.Open( name, source );
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if ( !retval )
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{
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retval = trgNest.Create( name, this );
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if ( !retval )
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{
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retval = trgNest.HiveCopy( &srcNest );
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trgNest.Close();
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}
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srcNest.Close();
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}
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}
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}
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if ( retval == ERROR_NO_MORE_ITEMS )
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{
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retval = 0;
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}
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return retval;
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}
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DWORD // ret-OS return code
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TRegKey::HiveDel()
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{
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DWORD retval = 0; // returned value
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DWORD index; // value/key index
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TCHAR name[MAX_REG_NAMELEN]; // name
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DWORD namelen; // name length
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BYTE value[MAX_REG_VALUELEN]; // value
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DWORD valuelen; // value length
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DWORD type; // value type code
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TRegKey trgNest; // nested target registry
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// delete values at this level
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for ( index = 0;
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!retval;
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/* index++ */ ) // note that index remains at zero
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{
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namelen = MAX_REG_NAMELEN;
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valuelen = sizeof value;
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retval = ValueEnum( index, name, namelen, value, &valuelen, &type );
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if ( retval == ERROR_MORE_DATA )
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{
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retval = 0;
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}
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if ( !retval )
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{
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retval = ValueDel( name );
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}
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}
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if ( retval == ERROR_NO_MORE_ITEMS )
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{
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retval = 0;
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}
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// process keys at this level; for each key make a recursive call
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for ( index = 0;
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!retval;
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/* index++ */ ) // note that index remains at zero
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{
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retval = SubKeyEnum( index, name, MAX_REG_NAMELEN );
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if ( !retval )
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{
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retval = trgNest.Open( name, this );
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if ( !retval )
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{
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retval = trgNest.HiveDel();
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trgNest.Close();
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}
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retval = SubKeyDel( name );
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}
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}
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if ( retval == ERROR_NO_MORE_ITEMS )
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{
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retval = 0;
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}
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return retval;
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}
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// These four classes are used only by TRegReplicate
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// Class to represent one registry key
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class RKey : public TNode
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{
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friend class RKeyList;
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private:
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TCHAR * name; // key name
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protected:
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public:
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RKey() { name = NULL; };
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~RKey() { if ( name ) delete name; };
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BOOL New( TCHAR const * aname );
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TCHAR const * GetName() const { return name; };
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};
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BOOL
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RKey::New(
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TCHAR const * aname // in -key name
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)
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{
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name = new TCHAR[UStrLen(aname)+1];
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if ( name )
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{
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UStrCpy( name, aname );
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}
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return !!name;
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}
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// Class to represent the set of registry keys at one level
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class RKeyList : public TNodeListSortable
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{
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private:
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static TNodeCompare( Compare ) { return UStrICmp(
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((RKey const *) v1)->name,
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((RKey const *) v2)->name ); }
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protected:
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public:
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RKeyList() : TNodeListSortable( Compare ) {}
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~RKeyList();
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};
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// RKeyList object destructor
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RKeyList::~RKeyList()
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{
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DeleteAllListItems( RKey );
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}
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// Class to represent one registry value
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class RValue : public TNode
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{
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friend class RValueList;
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private:
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TCHAR * name; // value's name
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BYTE * value; // value's value
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DWORD valuelen; // value's value length
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DWORD type; // value's type
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protected:
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public:
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RValue() { name = NULL; value = NULL; valuelen = type = 0; };
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~RValue() { if ( name ) delete name;
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if ( value ) delete value; };
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BOOL New( TCHAR const * aname, BYTE const * avalue, DWORD valuelen, DWORD type );
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TCHAR const * GetName() const { return name; };
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BYTE const * GetValue() const { return value; };
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DWORD GetValueLen() const { return valuelen; };
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DWORD GetType() const { return type; };
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};
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|
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BOOL
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RValue::New(
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TCHAR const * aname ,// in -value's name
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BYTE const * avalue ,// in -value's value
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DWORD avaluelen ,// in -value's value length
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DWORD atype // in -value's type
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)
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{
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name = new TCHAR[UStrLen(aname)+1];
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if ( name )
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{
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UStrCpy( name, aname );
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}
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value = new BYTE[avaluelen];
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if ( value )
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{
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memcpy( value, avalue, avaluelen );
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}
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valuelen = avaluelen;
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type = atype;
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return name && value;
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}
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|
|
// Class to represent the set of registry values at one level
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|
class RValueList : public TNodeListSortable
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|
{
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|
private:
|
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static TNodeCompare( Compare ) { return UStrICmp(
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((RValue const *)v1)->name,
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((RValue const *)v2)->name ); }
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protected:
|
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public:
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RValueList() : TNodeListSortable( Compare ) {}
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~RValueList();
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};
|
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|
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// RValueList object destructor
|
|
RValueList::~RValueList()
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|
{
|
|
DeleteAllListItems( RValue );
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}
|
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|
|
// Static subroutine used only by TRegReplicate
|
|
// collect all values at one registry level into a RValueList
|
|
DWORD static
|
|
CollectValues(
|
|
RValueList * pValueList ,// out-value list to be built
|
|
TRegKey const * pRegKey // in -registry key
|
|
)
|
|
{
|
|
DWORD retval=0; // returned value
|
|
DWORD index; // value enum index
|
|
TCHAR name[MAX_REG_NAMELEN]; // value name
|
|
BYTE value[MAX_REG_VALUELEN]; // value value
|
|
DWORD valuelen; // value length
|
|
DWORD type; // value type
|
|
RValue * pValue; // new value
|
|
|
|
for ( index = 0;
|
|
!retval;
|
|
index++ )
|
|
{
|
|
valuelen = sizeof value;
|
|
retval = pRegKey->ValueEnum( index, name, MAX_REG_NAMELEN, value, &valuelen, &type );
|
|
if ( !retval )
|
|
{
|
|
pValue = new RValue;
|
|
if ( pValue )
|
|
{
|
|
if ( pValue->New( name, value, valuelen, type ) )
|
|
{
|
|
pValueList->Insert( pValue );
|
|
}
|
|
else
|
|
{
|
|
delete pValue;
|
|
pValue = NULL;
|
|
}
|
|
}
|
|
if ( !pValue )
|
|
{
|
|
retval = ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
}
|
|
else if ( retval == ERROR_MORE_DATA )
|
|
{
|
|
retval = 0;
|
|
}
|
|
}
|
|
if ( retval == ERROR_NO_MORE_ITEMS )
|
|
{
|
|
retval = 0;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
// Static subroutine used only by TRegReplicate
|
|
// collect all keys at one registry level into a RKeyList
|
|
DWORD static
|
|
CollectKeys(
|
|
RKeyList * pKeyList ,// out-key list to be built
|
|
TRegKey const * pRegKey // in -registry key
|
|
)
|
|
{
|
|
DWORD retval=0; // returned value
|
|
DWORD index; // key enum index
|
|
TCHAR name[MAX_REG_NAMELEN]; // key name
|
|
RKey * pKey; // new key object
|
|
|
|
for ( index = 0;
|
|
!retval;
|
|
index++ )
|
|
{
|
|
retval = pRegKey->SubKeyEnum( index, name, MAX_REG_NAMELEN );
|
|
if ( !retval )
|
|
{
|
|
pKey = new RKey;
|
|
if ( pKey )
|
|
{
|
|
if ( pKey->New( name ) )
|
|
{
|
|
pKeyList->Insert( pKey );
|
|
}
|
|
else
|
|
{
|
|
delete pKey;
|
|
pKey = NULL;
|
|
}
|
|
}
|
|
if ( !pKey )
|
|
{
|
|
retval = ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( retval == ERROR_NO_MORE_ITEMS )
|
|
{
|
|
retval = 0;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
// Replicate registry hive
|
|
DWORD // ret-OS return code
|
|
TRegKey::HiveReplicate(
|
|
TRegKey const * source // in -source hive
|
|
)
|
|
{
|
|
DWORD retval=0; // returned value
|
|
RValueList srcValues; // source values
|
|
RValueList trgValues; // target values
|
|
TNodeListEnum eSrcValue; // enumerate source values
|
|
RValue const * pSrcValue; // source value
|
|
TNodeListEnum eTrgValue; // enumerate target values
|
|
RValue const * pTrgValue; // target value
|
|
RKeyList srcKeys; // source keys
|
|
RKeyList trgKeys; // target keys
|
|
TNodeListEnum eSrcKey; // enumerate source keys
|
|
RKey const * pSrcKey; // source key
|
|
TNodeListEnum eTrgKey; // enumerate target keys
|
|
RKey const * pTrgKey; // target key
|
|
int cmpRc; // compare return code
|
|
TRegKey srcNest; // nested source registry
|
|
TRegKey trgNest; // nested target registry
|
|
|
|
// handle replication of values at this level
|
|
CollectValues( &srcValues, source );
|
|
CollectValues( &trgValues, this );
|
|
|
|
// now merge the values
|
|
pSrcValue = (RValue const *) eSrcValue.OpenFirst( &srcValues );
|
|
pTrgValue = (RValue const *) eTrgValue.OpenFirst( &trgValues );
|
|
while ( !retval && (pSrcValue || pTrgValue) )
|
|
{
|
|
if ( !pTrgValue )
|
|
{
|
|
cmpRc = -1;
|
|
}
|
|
else if ( !pSrcValue )
|
|
{
|
|
cmpRc = 1;
|
|
}
|
|
else
|
|
{
|
|
cmpRc = UStrICmp( pSrcValue->GetName(), pTrgValue->GetName() );
|
|
}
|
|
if ( cmpRc < 0 )
|
|
{ // source value only (copy)
|
|
retval = this->ValueSet( pSrcValue->GetName(), pSrcValue->GetValue(),
|
|
pSrcValue->GetValueLen(), pSrcValue->GetType() );
|
|
pSrcValue = (RValue const *) eSrcValue.Next();
|
|
}
|
|
else if ( cmpRc > 0 )
|
|
{ // target value only (delete)
|
|
retval = this->ValueDel( pTrgValue->GetName() );
|
|
pTrgValue = (RValue const *) eTrgValue.Next();
|
|
}
|
|
else /* if ( cmpRc == 0 ) */
|
|
{ // identical value names (replicate)
|
|
retval = this->ValueSet( pSrcValue->GetName(), pSrcValue->GetValue(),
|
|
pSrcValue->GetValueLen(), pSrcValue->GetType() );
|
|
pSrcValue = (RValue const *) eSrcValue.Next();
|
|
pTrgValue = (RValue const *) eTrgValue.Next();
|
|
}
|
|
}
|
|
|
|
eSrcValue.Close();
|
|
eTrgValue.Close();
|
|
|
|
// handle replication of keys at this level
|
|
CollectKeys( &srcKeys, source );
|
|
CollectKeys( &trgKeys, this );
|
|
|
|
// now merge the values
|
|
pSrcKey = (RKey const *) eSrcKey.OpenFirst( &srcKeys );
|
|
pTrgKey = (RKey const *) eTrgKey.OpenFirst( &trgKeys );
|
|
|
|
while ( !retval && (pSrcKey || pTrgKey) )
|
|
{
|
|
if ( !pTrgKey )
|
|
{
|
|
cmpRc = -1;
|
|
}
|
|
else if ( !pSrcKey )
|
|
{
|
|
cmpRc = 1;
|
|
}
|
|
else
|
|
{
|
|
cmpRc = UStrICmp( pSrcKey->GetName(), pTrgKey->GetName() );
|
|
}
|
|
if ( cmpRc < 0 )
|
|
{ // source key only (copy hive)
|
|
retval = srcNest.Open( pSrcKey->GetName(), source );
|
|
if ( !retval )
|
|
{
|
|
retval = trgNest.Create( pSrcKey->GetName(), this );
|
|
if ( !retval )
|
|
{
|
|
retval = trgNest.HiveCopy( &srcNest );
|
|
trgNest.Close();
|
|
}
|
|
srcNest.Close();
|
|
}
|
|
pSrcKey = (RKey const *) eSrcKey.Next();
|
|
}
|
|
else if ( cmpRc > 0 )
|
|
{ // target key only (delete hive)
|
|
retval = trgNest.Open( pTrgKey->GetName(), this );
|
|
if ( !retval )
|
|
{
|
|
retval = trgNest.HiveDel();
|
|
trgNest.Close();
|
|
}
|
|
retval = SubKeyDel( pTrgKey->GetName() );
|
|
pTrgKey = (RKey const *) eTrgKey.Next();
|
|
}
|
|
else /* if ( cmpRc == 0 ) */
|
|
{ // identical keys (replicate hive)
|
|
retval = srcNest.Open( pSrcKey->GetName(), source );
|
|
if ( !retval )
|
|
{
|
|
retval = trgNest.Open( pSrcKey->GetName(), this );
|
|
if ( !retval )
|
|
{
|
|
retval = trgNest.HiveReplicate( &srcNest );
|
|
trgNest.Close();
|
|
}
|
|
srcNest.Close();
|
|
}
|
|
pSrcKey = (RKey const *) eSrcKey.Next();
|
|
pTrgKey = (RKey const *) eTrgKey.Next();
|
|
}
|
|
}
|
|
|
|
eSrcKey.Close();
|
|
eTrgKey.Close();
|
|
|
|
return retval;
|
|
}
|
|
|
|
// TReg.cpp - end of file
|