зеркало из https://github.com/mozilla/gecko-dev.git
86 строки
2.7 KiB
C++
86 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsOERegUtil.h"
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#include "OEDebugLog.h"
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BYTE * nsOERegUtil::GetValueBytes( HKEY hKey, const char *pValueName)
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{
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LONG err;
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DWORD bufSz;
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LPBYTE pBytes = NULL;
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DWORD type = 0;
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err = ::RegQueryValueEx( hKey, pValueName, NULL, &type, NULL, &bufSz);
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if (err == ERROR_SUCCESS) {
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pBytes = new BYTE[bufSz];
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err = ::RegQueryValueEx( hKey, pValueName, NULL, NULL, pBytes, &bufSz);
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if (err != ERROR_SUCCESS) {
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delete [] pBytes;
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pBytes = NULL;
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}
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else {
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if (type == REG_EXPAND_SZ) {
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DWORD sz = bufSz;
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LPBYTE pExpand = NULL;
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DWORD rSz;
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do {
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if (pExpand)
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delete [] pExpand;
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sz += 1024;
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pExpand = new BYTE[sz];
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rSz = ::ExpandEnvironmentStrings( (LPCSTR) pBytes, (LPSTR) pExpand, sz);
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} while (rSz > sz);
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delete [] pBytes;
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return( pExpand);
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}
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}
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}
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return( pBytes);
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}
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void nsOERegUtil::FreeValueBytes( BYTE *pBytes)
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{
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if (pBytes)
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delete [] pBytes;
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}
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