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Check for duplicate txins in CheckTransaction.

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This commit is contained in:
Matt Corallo 2011-07-30 23:01:45 +02:00
parent e1f13129e8
commit 33208fb557
1 changed files with 9 additions and 0 deletions
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9
src/main.cpp
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@ -314,6 +314,15 @@ bool CTransaction::CheckTransaction() const
return error("CTransaction::CheckTransaction() : txout total out of range"); return error("CTransaction::CheckTransaction() : txout total out of range");
} }
// Check for duplicate inputs
set<COutPoint> vInOutPoints;
BOOST_FOREACH(const CTxIn& txin, vin)
{
if (vInOutPoints.count(txin.prevout))
return false;
vInOutPoints.insert(txin.prevout);
}
if (IsCoinBase()) if (IsCoinBase())
{ {
if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100) if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)