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38 lines
1.2 KiB
38 lines
1.2 KiB
4 months ago
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// Copyright 2018 The Chromium Authors. All rights reserved.
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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/string_escape.h"
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#include <memory>
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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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const bool put_in_quotes = data[size - 1];
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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 put_in_quotes).
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size_t actual_size_char8 = size - 1;
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std::unique_ptr<char[]> input(new char[actual_size_char8]);
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memcpy(input.get(), data, actual_size_char8);
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base::StringPiece input_string(input.get(), actual_size_char8);
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std::string escaped_string;
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base::EscapeJSONString(input_string, put_in_quotes, &escaped_string);
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// Test for wide-strings if available size is even.
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if (actual_size_char8 & 1)
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return 0;
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size_t actual_size_char16 = actual_size_char8 / 2;
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base::StringPiece16 input_string16(
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reinterpret_cast<base::char16*>(input.get()), actual_size_char16);
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escaped_string.clear();
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base::EscapeJSONString(input_string16, put_in_quotes, &escaped_string);
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return 0;
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}
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