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40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
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// Copyright (c) 2009-2019 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_TEST_FUZZ_UTIL_H
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#define BITCOIN_TEST_FUZZ_UTIL_H
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#include <attributes.h>
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#include <optional.h>
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#include <serialize.h>
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#include <streams.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <version.h>
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#include <cstdint>
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#include <string>
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#include <vector>
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NODISCARD inline std::vector<uint8_t> ConsumeRandomLengthByteVector(FuzzedDataProvider& fuzzed_data_provider, size_t max_length = 4096) noexcept
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{
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const std::string s = fuzzed_data_provider.ConsumeRandomLengthString(max_length);
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return {s.begin(), s.end()};
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}
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template <typename T>
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NODISCARD inline Optional<T> ConsumeDeserializable(FuzzedDataProvider& fuzzed_data_provider, size_t max_length = 4096) noexcept
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{
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const std::vector<uint8_t>& buffer = ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length);
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CDataStream ds{buffer, SER_NETWORK, INIT_PROTO_VERSION};
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T obj;
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try {
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ds >> obj;
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} catch (const std::ios_base::failure&) {
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return nullopt;
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}
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return obj;
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}
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#endif // BITCOIN_TEST_FUZZ_UTIL_H
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