45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
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// Copyright 2015 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/json/json_reader.h"
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#include "base/json/json_writer.h"
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#include "base/values.h"
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#include "third_party/abseil-cpp/absl/types/optional.h"
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namespace base {
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// Entry point for LibFuzzer.
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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if (size < 2)
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return 0;
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// Create a copy of input buffer, as otherwise we don't catch
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// overflow that touches the last byte (which is used in options).
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std::unique_ptr<char[]> input(new char[size - 1]);
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memcpy(input.get(), data, size - 1);
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StringPiece input_string(input.get(), size - 1);
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const int options = data[size - 1];
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auto json_val =
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JSONReader::ReadAndReturnValueWithError(input_string, options);
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if (json_val.has_value()) {
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// Check that the value can be serialized and deserialized back to an
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// equivalent |Value|.
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const Value& value = *json_val;
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std::string serialized;
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CHECK(JSONWriter::Write(value, &serialized));
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absl::optional<Value> deserialized =
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JSONReader::Read(StringPiece(serialized));
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CHECK(deserialized);
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CHECK_EQ(value, deserialized.value());
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}
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return 0;
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}
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} // namespace base
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