// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
#include "checkpoints.h"
#include "db.h"
#include "net.h"
if (!tx.CheckTransaction())
return DoS(tx.nDoS, error("CheckBlock() : CheckTransaction failed"));
+ // Check for duplicate txids. This is caught by ConnectInputs(),
+ // but catching it earlier avoids a potential DoS attack:
+ set<uint256> uniqueTx;
+ BOOST_FOREACH(const CTransaction& tx, vtx)
+ {
+ uniqueTx.insert(tx.GetHash());
+ }
+ if (uniqueTx.size() != vtx.size())
+ return DoS(100, error("CheckBlock() : duplicate transaction"));
+
unsigned int nSigOps = 0;
BOOST_FOREACH(const CTransaction& tx, vtx)
{
dPriority += (double)nValueIn * nConf;
if (fDebug && GetBoolArg("-printpriority"))
- printf("priority nValueIn=%-12I64d nConf=%-5d dPriority=%-20.1f\n", nValueIn, nConf, dPriority);
+ printf("priority nValueIn=%-12"PRI64d" nConf=%-5d dPriority=%-20.1f\n", nValueIn, nConf, dPriority);
}
// Priority is sum(valuein * age) / txsize