/* * Copyright (C) 2011 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "DelayLoadedModulesEnumerator.h" #include "ImportedFunctionsEnumerator.h" #include <delayimp.h> // See <http://msdn.microsoft.com/en-us/magazine/cc301808.aspx> and // <http://msdn.microsoft.com/en-us/windows/hardware/gg463119> for more information about the PE // image format. namespace WebCore { DelayLoadedModulesEnumerator::DelayLoadedModulesEnumerator(const PEImage& image) : m_image(image) { if (m_image.isValid()) m_descriptor = static_cast<const ImgDelayDescr*>(m_image.dataDirectoryEntryAddress(IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT)); else m_descriptor = 0; } bool DelayLoadedModulesEnumerator::isAtEnd() const { return !m_descriptor || !m_descriptor->rvaHmod; } void DelayLoadedModulesEnumerator::next() { ASSERT(!isAtEnd()); ++m_descriptor; } const char* DelayLoadedModulesEnumerator::currentModuleName() const { ASSERT(!isAtEnd()); return static_cast<const char*>(convertPotentialRVAToAddress(m_descriptor->rvaDLLName)); } ImportedFunctionsEnumerator DelayLoadedModulesEnumerator::functionsEnumerator() const { ASSERT(!isAtEnd()); const IMAGE_THUNK_DATA* importNameTable = static_cast<const IMAGE_THUNK_DATA*>(convertPotentialRVAToAddress(m_descriptor->rvaINT)); const IMAGE_THUNK_DATA* importAddressTable = static_cast<const IMAGE_THUNK_DATA*>(convertPotentialRVAToAddress(m_descriptor->rvaIAT)); return ImportedFunctionsEnumerator(m_image, importNameTable, importAddressTable); } const void* DelayLoadedModulesEnumerator::convertPotentialRVAToAddress(DWORD potentialRVA) const { ASSERT(!isAtEnd()); if (!(m_descriptor->grAttrs & dlattrRva)) { // m_image is a pre-VC7.0 image, so addresses stored in the ImageDelayDescr are non-relative. return reinterpret_cast<void*>(potentialRVA); } return m_image.convertRVAToAddress(potentialRVA); } } // namespace WebCore