1/* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef DynamicLinkerEnvironmentExtractor_h 27#define DynamicLinkerEnvironmentExtractor_h 28 29#include <mach/machine.h> 30#include <wtf/Noncopyable.h> 31#include <wtf/RetainPtr.h> 32#include <wtf/Vector.h> 33#include <wtf/text/CString.h> 34 35namespace WebKit { 36 37class EnvironmentVariables; 38 39class DynamicLinkerEnvironmentExtractor { 40 WTF_MAKE_NONCOPYABLE(DynamicLinkerEnvironmentExtractor); 41 42public: 43 DynamicLinkerEnvironmentExtractor(NSString *executablePath, cpu_type_t architecture); 44 45 void getExtractedEnvironmentVariables(EnvironmentVariables&) const; 46 47private: 48 void processSingleArchitecture(const void* data, size_t length); 49 void processFatFile(const void* data, size_t length); 50 void processLoadCommands(const void* data, size_t length, int32_t numberOfCommands, bool shouldByteSwap); 51 size_t processLoadCommand(const void* data, size_t length, bool shouldByteSwap); 52 void processEnvironmentVariable(const char* environmentString); 53 54 RetainPtr<NSString> m_executablePath; 55 cpu_type_t m_architecture; 56 57 Vector<std::pair<CString, CString>> m_extractedVariables; 58}; 59 60} // namespace WebKit 61 62#endif // DynamicLinkerEnvironmentExtractor_h 63