| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "chrome/utility/safe_browsing/mac/hfs.h" |
| #include "chrome/utility/safe_browsing/mac/read_stream.h" |
| #include "testing/libfuzzer/libfuzzer_exports.h" |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| safe_browsing::dmg::MemoryReadStream input(data, size); |
| safe_browsing::dmg::HFSIterator hfs_iterator(&input); |
| |
| if (!hfs_iterator.Open()) |
| return 0; |
| |
| std::vector<uint8_t> buffer(getpagesize(), 0); |
| |
| while (hfs_iterator.Next()) { |
| // Test accessing properties. |
| ignore_result(hfs_iterator.IsSymbolicLink()); |
| ignore_result(hfs_iterator.IsDecmpfsCompressed()); |
| ignore_result(hfs_iterator.GetPath()); |
| |
| if (hfs_iterator.IsDirectory() || hfs_iterator.IsHardLink()) |
| continue; |
| |
| // Read out file contents. |
| std::unique_ptr<safe_browsing::dmg::ReadStream> file( |
| hfs_iterator.GetReadStream()); |
| size_t read_this_pass = 0; |
| do { |
| if (!file->Read(buffer.data(), buffer.size(), &read_this_pass)) |
| break; |
| } while (read_this_pass != 0); |
| } |
| |
| return 0; |
| } |