| // Copyright 2019 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 <stdint.h> |
| |
| #include "cast/streaming/compound_rtcp_parser.h" |
| #include "cast/streaming/frame_id.h" |
| #include "cast/streaming/rtcp_session.h" |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| using openscreen::cast::CompoundRtcpParser; |
| using openscreen::cast::FrameId; |
| using openscreen::cast::RtcpSession; |
| using openscreen::cast::Ssrc; |
| |
| constexpr Ssrc kSenderSsrcInSeedCorpus = 1; |
| constexpr Ssrc kReceiverSsrcInSeedCorpus = 2; |
| |
| // Allocate the RtcpSession and CompoundRtcpParser statically (i.e., one-time |
| // init) to improve the fuzzer's execution rate. This is because RtcpSession |
| // also contains a NtpTimeConverter, which samples the system clock at |
| // construction time. There is no reason to re-construct these objects for |
| // each fuzzer test input. |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wexit-time-destructors" |
| static RtcpSession session(kSenderSsrcInSeedCorpus, kReceiverSsrcInSeedCorpus, |
| openscreen::Clock::time_point{}); |
| static CompoundRtcpParser::Client client_that_ignores_everything; |
| static CompoundRtcpParser parser(&session, &client_that_ignores_everything); |
| #pragma clang diagnostic pop |
| |
| const auto max_feedback_frame_id = FrameId::first() + 100; |
| parser.Parse(absl::Span<const uint8_t>(data, size), max_feedback_frame_id); |
| |
| return 0; |
| } |
| |
| #if defined(NEEDS_MAIN_TO_CALL_FUZZER_DRIVER) |
| |
| // Forward declarations of Clang's built-in libFuzzer driver. |
| namespace fuzzer { |
| using TestOneInputCallback = int (*)(const uint8_t* data, size_t size); |
| int FuzzerDriver(int* argc, char*** argv, TestOneInputCallback callback); |
| } // namespace fuzzer |
| |
| int main(int argc, char* argv[]) { |
| return fuzzer::FuzzerDriver(&argc, &argv, LLVMFuzzerTestOneInput); |
| } |
| |
| #endif // defined(NEEDS_MAIN_TO_CALL_FUZZER_DRIVER) |