// Copyright (c) 2019-2020 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include void initialize_transaction() { SelectParams(CBaseChainParams::REGTEST); } FUZZ_TARGET_INIT(transaction, initialize_transaction) { CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION); try { int nVersion; ds >> nVersion; ds.SetVersion(nVersion); } catch (const std::ios_base::failure&) { return; } bool valid_tx = true; const CTransaction tx = [&] { try { return CTransaction(deserialize, ds); } catch (const std::ios_base::failure&) { valid_tx = false; return CTransaction{CMutableTransaction{}}; } }(); bool valid_mutable_tx = true; CDataStream ds_mtx(buffer, SER_NETWORK, INIT_PROTO_VERSION); CMutableTransaction mutable_tx; try { int nVersion; ds_mtx >> nVersion; ds_mtx.SetVersion(nVersion); ds_mtx >> mutable_tx; } catch (const std::ios_base::failure&) { valid_mutable_tx = false; } assert(valid_tx == valid_mutable_tx); if (!valid_tx) { return; } { TxValidationState state_with_dupe_check; const bool res{CheckTransaction(tx, state_with_dupe_check)}; Assert(res == state_with_dupe_check.IsValid()); } const CFeeRate dust_relay_fee{DUST_RELAY_TX_FEE}; std::string reason; const bool is_standard_with_permit_bare_multisig = IsStandardTx(tx, /* permit_bare_multisig= */ true, dust_relay_fee, reason); const bool is_standard_without_permit_bare_multisig = IsStandardTx(tx, /* permit_bare_multisig= */ false, dust_relay_fee, reason); if (is_standard_without_permit_bare_multisig) { assert(is_standard_with_permit_bare_multisig); } (void)tx.GetHash(); (void)tx.GetTotalSize(); try { (void)tx.GetValueOut(); } catch (const std::runtime_error&) { } (void)tx.GetWitnessHash(); (void)tx.HasWitness(); (void)tx.IsCoinBase(); (void)tx.IsNull(); (void)tx.ToString(); (void)EncodeHexTx(tx); (void)GetLegacySigOpCount(tx); (void)GetTransactionWeight(tx); (void)GetVirtualTransactionSize(tx); (void)IsFinalTx(tx, /* nBlockHeight= */ 1024, /* nBlockTime= */ 1024); (void)IsStandardTx(tx, reason); (void)RecursiveDynamicUsage(tx); (void)SignalsOptInRBF(tx); CCoinsView coins_view; const CCoinsViewCache coins_view_cache(&coins_view); (void)AreInputsStandard(tx, coins_view_cache, false); (void)AreInputsStandard(tx, coins_view_cache, true); (void)IsWitnessStandard(tx, coins_view_cache); UniValue u(UniValue::VOBJ); TxToUniv(tx, /*hashBlock=*/uint256::ZERO, u); TxToUniv(tx, /*hashBlock=*/uint256::ONE, u); }