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https://github.com/TigerVNC/tigervnc.git
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![Constantin Kaplinsky](/assets/img/avatar_default.png)
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
273 lines
8.6 KiB
C++
273 lines
8.6 KiB
C++
/* Copyright (C) 2002-2004 RealVNC Ltd. All Rights Reserved.
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*
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* This 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 software 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 software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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// -=- Registry.cxx
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#include <rfb/LogWriter.h>
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#include <rfb_win32/Registry.h>
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#include <rdr/MemOutStream.h>
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#include <rdr/HexOutstream.h>
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#include <rdr/HexInStream.h>
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#include <rfb_win32/Security.h>
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#include <stdlib.h>
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// These flags are required to control access control inheritance,
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// but are not defined by VC6's headers. These definitions comes
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// from the Microsoft Platform SDK.
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#ifndef PROTECTED_DACL_SECURITY_INFORMATION
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#define PROTECTED_DACL_SECURITY_INFORMATION (0x80000000L)
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#endif
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#ifndef UNPROTECTED_DACL_SECURITY_INFORMATION
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#define UNPROTECTED_DACL_SECURITY_INFORMATION (0x20000000L)
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#endif
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using namespace rfb;
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using namespace rfb::win32;
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static LogWriter vlog("Registry");
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RegKey::RegKey() : key(0), freeKey(false), valueNameBufLen(0) {}
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RegKey::RegKey(const HKEY k) : key(0), freeKey(false), valueNameBufLen(0) {
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LONG result = RegOpenKeyEx(k, 0, 0, KEY_ALL_ACCESS, &key);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegOpenKeyEx(HKEY)", result);
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vlog.debug("duplicated %x to %x", k, key);
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freeKey = true;
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}
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RegKey::RegKey(const RegKey& k) : key(0), freeKey(false), valueNameBufLen(0) {
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LONG result = RegOpenKeyEx(k.key, 0, 0, KEY_ALL_ACCESS, &key);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegOpenKeyEx(RegKey&)", result);
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vlog.debug("duplicated %x to %x", k.key, key);
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freeKey = true;
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}
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RegKey::~RegKey() {
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close();
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}
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void RegKey::setHKEY(HKEY k, bool fK) {
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close();
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freeKey = fK;
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key = k;
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}
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bool RegKey::createKey(const RegKey& root, const TCHAR* name) {
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close();
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LONG result = RegCreateKey(root.key, name, &key);
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if (result != ERROR_SUCCESS) {
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vlog.error("RegCreateKey(%x, %s): %x", root.key, name, result);
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throw rdr::SystemException("RegCreateKeyEx", result);
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}
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freeKey = true;
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return true;
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}
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void RegKey::openKey(const RegKey& root, const TCHAR* name, bool readOnly) {
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close();
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LONG result = RegOpenKeyEx(root.key, name, 0, readOnly ? KEY_READ : KEY_ALL_ACCESS, &key);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegOpenKeyEx (open)", result);
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freeKey = true;
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}
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void RegKey::setDACL(const PACL acl, bool inherit) {
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DWORD result;
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typedef DWORD (WINAPI *_SetSecurityInfo_proto) (HANDLE, SE_OBJECT_TYPE, SECURITY_INFORMATION, PSID, PSID, PACL, PACL);
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DynamicFn<_SetSecurityInfo_proto> _SetSecurityInfo(_T("advapi32.dll"), "SetSecurityInfo");
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if (!_SetSecurityInfo.isValid())
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throw rdr::SystemException("RegKey::setDACL failed", ERROR_CALL_NOT_IMPLEMENTED);
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if ((result = (*_SetSecurityInfo)(key, SE_REGISTRY_KEY,
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DACL_SECURITY_INFORMATION |
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(inherit ? UNPROTECTED_DACL_SECURITY_INFORMATION : PROTECTED_DACL_SECURITY_INFORMATION),
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0, 0, acl, 0)) != ERROR_SUCCESS)
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throw rdr::SystemException("RegKey::setDACL failed", result);
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}
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void RegKey::close() {
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if (freeKey) {
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RegCloseKey(key);
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key = 0;
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}
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}
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void RegKey::deleteKey(const TCHAR* name) const {
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LONG result = RegDeleteKey(key, name);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegDeleteKey", result);
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}
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void RegKey::deleteValue(const TCHAR* name) const {
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LONG result = RegDeleteValue(key, name);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegDeleteValue", result);
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}
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void RegKey::awaitChange(bool watchSubTree, DWORD filter) const {
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LONG result = RegNotifyChangeKeyValue(key, watchSubTree, filter, 0, FALSE);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegNotifyChangeKeyValue", result);
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}
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RegKey::operator HKEY() const {return key;}
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void RegKey::setExpandString(const TCHAR* valname, const TCHAR* value) const {
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LONG result = RegSetValueEx(key, valname, 0, REG_EXPAND_SZ, (const BYTE*)value, (_tcslen(value)+1)*sizeof(TCHAR));
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if (result != ERROR_SUCCESS) throw rdr::SystemException("setExpandString", result);
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}
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void RegKey::setString(const TCHAR* valname, const TCHAR* value) const {
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LONG result = RegSetValueEx(key, valname, 0, REG_SZ, (const BYTE*)value, (_tcslen(value)+1)*sizeof(TCHAR));
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if (result != ERROR_SUCCESS) throw rdr::SystemException("setString", result);
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}
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void RegKey::setBinary(const TCHAR* valname, const void* value, int length) const {
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LONG result = RegSetValueEx(key, valname, 0, REG_BINARY, (const BYTE*)value, length);
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if (result != ERROR_SUCCESS) throw rdr::SystemException("setBinary", result);
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}
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void RegKey::setInt(const TCHAR* valname, int value) const {
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LONG result = RegSetValueEx(key, valname, 0, REG_DWORD, (const BYTE*)&value, sizeof(value));
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if (result != ERROR_SUCCESS) throw rdr::SystemException("setInt", result);
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}
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void RegKey::setBool(const TCHAR* valname, bool value) const {
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setInt(valname, value ? 1 : 0);
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}
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TCHAR* RegKey::getString(const TCHAR* valname) const {return getRepresentation(valname);}
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TCHAR* RegKey::getString(const TCHAR* valname, const TCHAR* def) const {
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try {
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return getString(valname);
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} catch(rdr::Exception) {
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return tstrDup(def);
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}
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}
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void RegKey::getBinary(const TCHAR* valname, void** data, int* length) const {
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TCharArray hex = getRepresentation(valname);
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if (!rdr::HexInStream::hexStrToBin(CStr(hex.buf), (char**)data, length))
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throw rdr::Exception("getBinary failed");
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}
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void RegKey::getBinary(const TCHAR* valname, void** data, int* length, void* def, int deflen) const {
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try {
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getBinary(valname, data, length);
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} catch(rdr::Exception) {
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if (deflen) {
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*data = new char[deflen];
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memcpy(*data, def, deflen);
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} else
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*data = 0;
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*length = deflen;
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}
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}
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int RegKey::getInt(const TCHAR* valname) const {
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TCharArray tmp = getRepresentation(valname);
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return _ttoi(tmp.buf);
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}
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int RegKey::getInt(const TCHAR* valname, int def) const {
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try {
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return getInt(valname);
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} catch(rdr::Exception) {
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return def;
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}
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}
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bool RegKey::getBool(const TCHAR* valname) const {
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return getInt(valname) > 0;
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}
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bool RegKey::getBool(const TCHAR* valname, bool def) const {
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return getInt(valname, def ? 1 : 0) > 0;
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}
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TCHAR* RegKey::getRepresentation(const TCHAR* valname) const {
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DWORD type, length;
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LONG result = RegQueryValueEx(key, valname, 0, &type, 0, &length);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("get registry value length", result);
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CharArray data(length);
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result = RegQueryValueEx(key, valname, 0, &type, (BYTE*)data.buf, &length);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("get registry value", result);
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switch (type) {
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case REG_BINARY:
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{
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TCharArray hex = rdr::HexOutStream::binToHexStr(data.buf, length);
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return hex.takeBuf();
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}
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case REG_SZ:
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if (length) {
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// We must terminate the string, just to be sure. Stupid Win32...
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int len = length/sizeof(TCHAR);
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TCharArray str(len+1);
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memcpy(str.buf, data.buf, length);
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str.buf[len] = 0;
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return str.takeBuf();
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} else {
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return tstrDup(_T(""));
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}
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case REG_DWORD:
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{
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TCharArray tmp(16);
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_stprintf(tmp.buf, _T("%u"), *((DWORD*)data.buf));
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return tmp.takeBuf();
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}
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default:
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throw rdr::Exception("unsupported registry type");
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}
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}
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bool RegKey::isValue(const TCHAR* valname) const {
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try {
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TCharArray tmp = getRepresentation(valname);
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return true;
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} catch(rdr::Exception) {
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return false;
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}
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}
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const TCHAR* RegKey::getValueName(int i) {
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DWORD maxValueNameLen;
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LONG result = RegQueryInfoKey(key, 0, 0, 0, 0, 0, 0, 0, &maxValueNameLen, 0, 0, 0);
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegQueryInfoKey", result);
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if (valueNameBufLen < maxValueNameLen + 1) {
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valueNameBufLen = maxValueNameLen + 1;
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delete [] valueName.buf;
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valueName.buf = new TCHAR[valueNameBufLen];
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}
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DWORD length = valueNameBufLen;
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result = RegEnumValue(key, i, valueName.buf, &length, NULL, 0, 0, 0);
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if (result == ERROR_NO_MORE_ITEMS) return 0;
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if (result != ERROR_SUCCESS)
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throw rdr::SystemException("RegEnumValue", result);
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return valueName.buf;
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}
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