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- // Copyright 2018 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 "base/memory/ref_counted.h"
- #include "components/cast_channel/cast_channel_enum.h"
- #include "components/cast_channel/cast_framer.h"
- #include "net/base/io_buffer.h"
- #include "third_party/openscreen/src/cast/common/channel/proto/cast_channel.pb.h"
- // Silence logging from the protobuf library.
- google::protobuf::LogSilencer log_silencer;
- namespace cast_channel {
- extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
- if (size > MessageFramer::MessageHeader::max_message_size())
- return 0;
- scoped_refptr<net::GrowableIOBuffer> buffer =
- base::MakeRefCounted<net::GrowableIOBuffer>();
- buffer->SetCapacity(MessageFramer::MessageHeader::max_message_size());
- memcpy(buffer->StartOfBuffer(), data, size);
- std::unique_ptr<MessageFramer> framer =
- std::make_unique<MessageFramer>(buffer.get());
- size_t bytes_ingested = 0u;
- size_t bytes_to_read =
- std::min(framer->BytesRequested(), size - bytes_ingested);
- while (bytes_to_read > 0u && bytes_ingested < size) {
- ChannelError unused_error;
- size_t unused_message_length;
- std::unique_ptr<CastMessage> unused_cast_message =
- framer->Ingest(bytes_to_read, &unused_message_length, &unused_error);
- bytes_ingested += bytes_to_read;
- bytes_to_read = std::min(framer->BytesRequested(), size - bytes_ingested);
- }
- return 0;
- }
- } // namespace cast_channel
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