blob: 3941773705b2e26bbb0ebb604a37679592c9bebb [file] [log] [blame]
// 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 <list>
#include <vector>
#include "net/third_party/quiche/src/http2/decoder/http2_frame_decoder.h"
#include "third_party/libFuzzer/src/utils/FuzzedDataProvider.h"
// Entry point for LibFuzzer.
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
FuzzedDataProvider fuzzed_data_provider(data, size);
http2::Http2FrameDecoder decoder;
// Store all chunks in a function scope list, as the API requires the caller
// to make sure the fragment chunks data is accessible during the whole
// decoding process. |http2::DecodeBuffer| does not copy the data, it is just
// a wrapper for the chunk provided in its constructor.
std::list<std::vector<char>> all_chunks;
while (fuzzed_data_provider.remaining_bytes() > 0) {
size_t chunk_size = fuzzed_data_provider.ConsumeIntegralInRange(1, 32);
all_chunks.emplace_back(
fuzzed_data_provider.ConsumeBytes<char>(chunk_size));
const auto& chunk = all_chunks.back();
// http2::DecodeBuffer constructor does not accept nullptr buffer.
if (chunk.data() == nullptr)
continue;
http2::DecodeBuffer frame_data(chunk.data(), chunk.size());
decoder.DecodeFrame(&frame_data);
}
return 0;
}