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Merge pull request #264 from sipa/mintxfeefix 

Fix for small change outputs
This commit is contained in:
Jeff Garzik 2011-06-05 07:32:58 -07:00
parent e3d884479a ca253d5911
commit 09d1484b22
1 changed files with 12 additions and 3 deletions
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15
src/main.cpp
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@ -3854,9 +3854,18 @@ bool CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CWalletTx&
dPriority += (double)nCredit * pcoin.first->GetDepthInMainChain();
}
// Fill a vout back to self with any change
int64 nChange = nValueIn - nTotalValue;
if (nChange >= CENT)
int64 nChange = nValueIn - nValue - nFeeRet;
// if sub-cent change is required, the fee must be raised to at least MIN_TX_FEE
// or until nChange becomes zero
if (nFeeRet < MIN_TX_FEE && nChange > 0 && nChange < CENT)
{
int64 nMoveToFee = min(nChange, MIN_TX_FEE - nFeeRet);
nChange -= nMoveToFee;
nFeeRet += nMoveToFee;
}
if (nChange > 0)
{
// Note: We use a new key here to keep it from being obvious which side is the change.
// The drawback is that by not reusing a previous key, the change may be lost if a