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// Copyright (c) 2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <primitives/transaction.h>
#include <script/interpreter.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
bool CastToBool(const std::vector<unsigned char>& vch);
FUZZ_TARGET(script_interpreter)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
{
const CScript script_code = ConsumeScript(fuzzed_data_provider);
const std::optional<CMutableTransaction> mtx = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider, TX_WITH_WITNESS);
if (mtx) {
const CTransaction tx_to{*mtx};
const unsigned int in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
if (in < tx_to.vin.size()) {
auto n_hash_type = fuzzed_data_provider.ConsumeIntegral<int>();
auto amount = ConsumeMoney(fuzzed_data_provider);
auto sigversion = fuzzed_data_provider.PickValueInArray({SigVersion::BASE, SigVersion::WITNESS_V0});
(void)SignatureHash(script_code, tx_to, in, n_hash_type, amount, sigversion, nullptr);
const std::optional<CMutableTransaction> mtx_precomputed = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider, TX_WITH_WITNESS);
if (mtx_precomputed) {
const CTransaction tx_precomputed{*mtx_precomputed};
const PrecomputedTransactionData precomputed_transaction_data{tx_precomputed};
n_hash_type = fuzzed_data_provider.ConsumeIntegral<int>();
amount = ConsumeMoney(fuzzed_data_provider);
sigversion = fuzzed_data_provider.PickValueInArray({SigVersion::BASE, SigVersion::WITNESS_V0});
(void)SignatureHash(script_code, tx_to, in, n_hash_type, amount, sigversion, &precomputed_transaction_data);
}
}
}
}
{
(void)CastToBool(ConsumeRandomLengthByteVector(fuzzed_data_provider));
}
}
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