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 (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)