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45 lines
2.1 KiB
C++
45 lines
2.1 KiB
C++
// Copyright (c) 2022 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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#include <consensus/amount.h>
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#include <consensus/consensus.h>
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#include <kernel/mempool_entry.h>
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#include <primitives/transaction.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/util.h>
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#include <test/fuzz/util/mempool.h>
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#include <cassert>
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#include <cstdint>
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#include <limits>
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bool SanityCheckForConsumeTxMemPoolEntry(const CTransaction& tx) noexcept
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{
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try {
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(void)tx.GetValueOut();
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return true;
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} catch (const std::runtime_error&) {
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return false;
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}
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}
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// NOTE: Transaction must pass SanityCheckForConsumeTxMemPoolEntry first
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CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzzed_data_provider, const CTransaction& tx) noexcept
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{
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// Avoid:
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// policy/feerate.cpp:28:34: runtime error: signed integer overflow: 34873208148477500 * 1000 cannot be represented in type 'long'
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//
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// Reproduce using CFeeRate(348732081484775, 10).GetFeePerK()
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const CAmount fee{ConsumeMoney(fuzzed_data_provider, /*max=*/std::numeric_limits<CAmount>::max() / CAmount{100'000})};
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assert(MoneyRange(fee));
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const int64_t time = fuzzed_data_provider.ConsumeIntegral<int64_t>();
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const uint64_t entry_sequence{fuzzed_data_provider.ConsumeIntegral<uint64_t>()};
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const double coin_age = fuzzed_data_provider.ConsumeFloatingPoint<double>();
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const unsigned int entry_height = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, std::numeric_limits<unsigned int>::max() - 1);
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const bool spends_coinbase = fuzzed_data_provider.ConsumeBool();
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const int32_t extra_weight = fuzzed_data_provider.ConsumeIntegralInRange<int32_t>(0, GetTransactionWeight(tx) * 3);
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const unsigned int sig_op_cost = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, MAX_BLOCK_SIGOPS_COST);
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return CTxMemPoolEntry{MakeTransactionRef(tx), fee, time, entry_height, entry_sequence, /*entry_tx_inputs_coin_age=*/coin_age, tx.GetValueOut(), spends_coinbase, extra_weight, sig_op_cost, {}};
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}
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