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-BEGIN VERIFY SCRIPT- sed -i 's/\.DoS(\(.*\), REJECT_\(.*\), \(true\|false\)/.DoS(\1, REJECT_\2/' src/validation.cpp src/consensus/tx_verify.cpp src/consensus/tx_check.cpp sed -i 's/state.GetRejectCode(), state.GetRejectReason(), [^,]\+, state.GetDebugMessage())/state.GetRejectCode(), state.GetRejectReason(), state.GetDebugMessage())/' src/validation.cpp sed -i 's/\.DoS([^,]*, /.Invalid\(/' src/validation.cpp src/consensus/tx_verify.cpp src/consensus/tx_check.cpp -END VERIFY SCRIPT- Co-authored-by: Suhas Daftuar <sdaftuar@gmail.com>
57 lines
2.5 KiB
C++
57 lines
2.5 KiB
C++
// Copyright (c) 2017-2018 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/tx_check.h>
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#include <primitives/transaction.h>
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#include <consensus/validation.h>
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bool CheckTransaction(const CTransaction& tx, CValidationState &state, bool fCheckDuplicateInputs)
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{
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// Basic checks that don't depend on any context
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if (tx.vin.empty())
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-vin-empty");
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if (tx.vout.empty())
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-vout-empty");
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// Size limits (this doesn't take the witness into account, as that hasn't been checked for malleability)
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if (::GetSerializeSize(tx, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * WITNESS_SCALE_FACTOR > MAX_BLOCK_WEIGHT)
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-oversize");
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// Check for negative or overflow output values
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CAmount nValueOut = 0;
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for (const auto& txout : tx.vout)
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{
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if (txout.nValue < 0)
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-vout-negative");
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if (txout.nValue > MAX_MONEY)
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-vout-toolarge");
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nValueOut += txout.nValue;
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if (!MoneyRange(nValueOut))
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-txouttotal-toolarge");
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}
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// Check for duplicate inputs - note that this check is slow so we skip it in CheckBlock
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if (fCheckDuplicateInputs) {
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std::set<COutPoint> vInOutPoints;
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for (const auto& txin : tx.vin)
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{
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if (!vInOutPoints.insert(txin.prevout).second)
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-inputs-duplicate");
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}
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}
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if (tx.IsCoinBase())
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{
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if (tx.vin[0].scriptSig.size() < 2 || tx.vin[0].scriptSig.size() > 100)
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-cb-length");
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}
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else
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{
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for (const auto& txin : tx.vin)
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if (txin.prevout.IsNull())
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return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, "bad-txns-prevout-null");
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}
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return true;
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}
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