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127 lines
4.3 KiB
C++
127 lines
4.3 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__
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#define GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__
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#include <thirdparty/protobuf/stubs/logging.h>
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#include <thirdparty/protobuf/stubs/common.h>
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#include <thirdparty/protobuf/io/coded_stream.h>
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#include <thirdparty/protobuf/io/zero_copy_stream_impl_lite.h>
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#include <thirdparty/protobuf/arena.h>
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namespace google {
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namespace protobuf {
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template <typename T, bool use_arena>
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void TestParseCorruptedString(const T& message) {
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int success_count = 0;
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std::string s;
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{
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// Map order is not deterministic. To make the test deterministic we want
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// to serialize the proto deterministically.
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io::StringOutputStream output(&s);
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io::CodedOutputStream out(&output);
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out.SetSerializationDeterministic(true);
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message.SerializePartialToCodedStream(&out);
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}
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const int kMaxIters = 900;
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const int stride = s.size() <= kMaxIters ? 1 : s.size() / kMaxIters;
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const int start = stride == 1 || use_arena ? 0 : (stride + 1) / 2;
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for (int i = start; i < s.size(); i += stride) {
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for (int c = 1 + (i % 17); c < 256; c += 2 * c + (i & 3)) {
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s[i] ^= c;
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Arena arena;
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T* message = Arena::CreateMessage<T>(use_arena ? &arena : nullptr);
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if (message->ParseFromString(s)) {
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++success_count;
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}
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if (!use_arena) {
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delete message;
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}
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s[i] ^= c; // Restore s to its original state.
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}
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}
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// This next line is a low bar. But getting through the test without crashing
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// due to use-after-free or other bugs is a big part of what we're checking.
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GOOGLE_CHECK_GT(success_count, 0);
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}
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namespace internal {
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class NoHeapChecker {
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public:
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NoHeapChecker() { capture_alloc.Hook(); }
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~NoHeapChecker();
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private:
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class NewDeleteCapture {
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public:
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// TODO(xiaofeng): Implement this for opensource protobuf.
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void Hook() {}
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void Unhook() {}
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int alloc_count() { return 0; }
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int free_count() { return 0; }
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} capture_alloc;
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};
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// Owns the internal T only if it's not owned by an arena.
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// T needs to be arena constructible and destructor skippable.
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template <typename T>
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class ArenaHolder {
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public:
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explicit ArenaHolder(Arena* arena)
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: field_(Arena::CreateMessage<T>(arena)),
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owned_by_arena_(arena != nullptr) {
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GOOGLE_DCHECK(google::protobuf::Arena::is_arena_constructable<T>::value);
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GOOGLE_DCHECK(google::protobuf::Arena::is_destructor_skippable<T>::value);
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}
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~ArenaHolder() {
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if (!owned_by_arena_) {
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delete field_;
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}
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}
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T* get() { return field_; }
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T* operator->() { return field_; }
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T& operator*() { return *field_; }
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private:
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T* field_;
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bool owned_by_arena_;
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};
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} // namespace internal
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} // namespace protobuf
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} // namespace google
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#endif // GOOGLE_PROTOBUF_ARENA_TEST_UTIL_H__
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