mirror of
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92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Ehsan Akhgari <ehsan@mozilla.com> (Original Author)
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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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsSetDllDirectory_h
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#define nsSetDllDirectory_h
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#ifndef XP_WIN
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#error This file only makes sense on Windows.
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#endif
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#include <windows.h>
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#include <nscore.h>
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#include <stdlib.h>
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namespace mozilla {
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static void SanitizeEnvironmentVariables()
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{
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DWORD bufferSize = GetEnvironmentVariableW(L"PATH", NULL, 0);
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if (bufferSize) {
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wchar_t* originalPath = new wchar_t[bufferSize];
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if (bufferSize - 1 == GetEnvironmentVariableW(L"PATH", originalPath, bufferSize)) {
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bufferSize = ExpandEnvironmentStringsW(originalPath, NULL, 0);
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if (bufferSize) {
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wchar_t* newPath = new wchar_t[bufferSize];
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if (ExpandEnvironmentStringsW(originalPath,
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newPath,
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bufferSize)) {
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SetEnvironmentVariableW(L"PATH", newPath);
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}
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delete[] newPath;
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}
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}
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delete[] originalPath;
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}
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}
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// Sets the directory from which DLLs can be loaded if the SetDllDirectory OS
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// API is available.
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// You must call SanitizeEnvironmentVariables before this function when calling
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// it the first time.
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static inline void NS_SetDllDirectory(const WCHAR *aDllDirectory)
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{
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typedef BOOL
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(WINAPI *pfnSetDllDirectory) (LPCWSTR);
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pfnSetDllDirectory setDllDirectory = nsnull;
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setDllDirectory = reinterpret_cast<pfnSetDllDirectory>
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(GetProcAddress(GetModuleHandleW(L"kernel32.dll"), "SetDllDirectoryW"));
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if (setDllDirectory) {
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setDllDirectory(aDllDirectory);
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}
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}
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}
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#endif
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