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56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
// Copyright 2007-2019 The JsonCpp Authors
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// Distributed under MIT license, or public domain if desired and
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// recognized in your jurisdiction.
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// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
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#include "fuzz.h"
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#include <cstdint>
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#include <json/config.h>
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#include <json/json.h>
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#include <memory>
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#include <stdint.h>
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#include <string>
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namespace Json {
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class Exception;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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Json::CharReaderBuilder builder;
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if (size < sizeof(uint32_t)) {
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return 0;
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}
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const uint32_t hash_settings = static_cast<uint32_t>(data[0]) |
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(static_cast<uint32_t>(data[1]) << 8) |
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(static_cast<uint32_t>(data[2]) << 16) |
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(static_cast<uint32_t>(data[3]) << 24);
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data += sizeof(uint32_t);
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size -= sizeof(uint32_t);
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builder.settings_["failIfExtra"] = hash_settings & (1 << 0);
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builder.settings_["allowComments_"] = hash_settings & (1 << 1);
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builder.settings_["strictRoot_"] = hash_settings & (1 << 2);
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builder.settings_["allowDroppedNullPlaceholders_"] = hash_settings & (1 << 3);
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builder.settings_["allowNumericKeys_"] = hash_settings & (1 << 4);
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builder.settings_["allowSingleQuotes_"] = hash_settings & (1 << 5);
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builder.settings_["failIfExtra_"] = hash_settings & (1 << 6);
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builder.settings_["rejectDupKeys_"] = hash_settings & (1 << 7);
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builder.settings_["allowSpecialFloats_"] = hash_settings & (1 << 8);
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builder.settings_["collectComments"] = hash_settings & (1 << 9);
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builder.settings_["allowTrailingCommas_"] = hash_settings & (1 << 10);
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std::unique_ptr<Json::CharReader> reader(builder.newCharReader());
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Json::Value root;
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const auto data_str = reinterpret_cast<const char*>(data);
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try {
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reader->parse(data_str, data_str + size, &root, nullptr);
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} catch (Json::Exception const&) {
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}
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// Whether it succeeded or not doesn't matter.
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return 0;
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}
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