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@ -2018,52 +2018,51 @@ bool CBlock::AcceptBlock(CDiskBlockPos *dbp)
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CBlockIndex* pindexPrev = NULL;
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int nHeight = 0;
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if (hash != hashGenesisBlock) {
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map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock);
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if (mi == mapBlockIndex.end())
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return DoS(10, error("AcceptBlock() : prev block not found"));
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pindexPrev = (*mi).second;
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nHeight = pindexPrev->nHeight+1;
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// Check proof of work
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if (nBits != GetNextWorkRequired(pindexPrev, this))
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return DoS(100, error("AcceptBlock() : incorrect proof of work"));
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// Check timestamp against prev
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if (GetBlockTime() <= pindexPrev->GetMedianTimePast())
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return error("AcceptBlock() : block's timestamp is too early");
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// Check that all transactions are finalized
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BOOST_FOREACH(const CTransaction& tx, vtx)
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if (!tx.IsFinal(nHeight, GetBlockTime()))
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return DoS(10, error("AcceptBlock() : contains a non-final transaction"));
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// Check that the block chain matches the known block chain up to a checkpoint
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if (!Checkpoints::CheckBlock(nHeight, hash))
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return DoS(100, error("AcceptBlock() : rejected by checkpoint lock-in at %d", nHeight));
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// Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded:
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if (nVersion < 2)
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{
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if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 950, 1000)) ||
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(fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 75, 100)))
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map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock);
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if (mi == mapBlockIndex.end())
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return DoS(10, error("AcceptBlock() : prev block not found"));
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pindexPrev = (*mi).second;
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nHeight = pindexPrev->nHeight+1;
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// Check proof of work
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if (nBits != GetNextWorkRequired(pindexPrev, this))
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return DoS(100, error("AcceptBlock() : incorrect proof of work"));
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// Check timestamp against prev
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if (GetBlockTime() <= pindexPrev->GetMedianTimePast())
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return error("AcceptBlock() : block's timestamp is too early");
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// Check that all transactions are finalized
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BOOST_FOREACH(const CTransaction& tx, vtx)
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if (!tx.IsFinal(nHeight, GetBlockTime()))
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return DoS(10, error("AcceptBlock() : contains a non-final transaction"));
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// Check that the block chain matches the known block chain up to a checkpoint
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if (!Checkpoints::CheckBlock(nHeight, hash))
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return DoS(100, error("AcceptBlock() : rejected by checkpoint lock-in at %d", nHeight));
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// Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded:
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if (nVersion < 2)
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{
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return error("AcceptBlock() : rejected nVersion=1 block");
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if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 950, 1000)) ||
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(fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 75, 100)))
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{
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return error("AcceptBlock() : rejected nVersion=1 block");
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}
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}
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}
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// Enforce block.nVersion=2 rule that the coinbase starts with serialized block height
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if (nVersion >= 2)
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{
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// if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet):
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if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 750, 1000)) ||
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(fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 51, 100)))
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// Enforce block.nVersion=2 rule that the coinbase starts with serialized block height
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if (nVersion >= 2)
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{
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CScript expect = CScript() << nHeight;
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if (!std::equal(expect.begin(), expect.end(), vtx[0].vin[0].scriptSig.begin()))
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return DoS(100, error("AcceptBlock() : block height mismatch in coinbase"));
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// if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet):
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if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 750, 1000)) ||
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(fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 51, 100)))
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{
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CScript expect = CScript() << nHeight;
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if (!std::equal(expect.begin(), expect.end(), vtx[0].vin[0].scriptSig.begin()))
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return DoS(100, error("AcceptBlock() : block height mismatch in coinbase"));
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}
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}
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}
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}
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// Write block to history file
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unsigned int nBlockSize = ::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION);
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