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Disable replacement of peg-in transactions

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Matt Corallo 2016-03-18 22:36:21 -07:00 • committed by Gregory Sanders
parent 3db5ff1e03
commit 6939698bc5
1 changed files with 4 additions and 0 deletions
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4
src/main.cpp
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@ -1262,11 +1262,15 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
if (!view.HaveInputs(tx))
return state.Invalid(false, REJECT_DUPLICATE, "bad-txns-inputs-spent");
// We disable replacement of peg-ins as they are spendable-by-anyone
BOOST_FOREACH(const CTxIn &txin, tx.vin)
{
CCoins coins;
assert(view.GetCoins(txin.prevout.hash, coins));
if (coins.vout[txin.prevout.n].scriptPubKey.IsWithdrawLock() && txin.scriptSig.IsWithdrawProof()) {
if (pool.mapNextTx.count(txin.prevout))
return state.Invalid(false, REJECT_CONFLICT, "txn-mempool-replace-withdraw");
pair<uint256, COutPoint> outpoint = make_pair(coins.vout[txin.prevout.n].scriptPubKey.GetWithdrawLockGenesisHash(), txin.scriptSig.GetWithdrawSpent());
if (view.IsWithdrawSpent(outpoint))
return state.Invalid(false, REJECT_CONFLICT, "withdraw-already-claimed");