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Add checks for settxfee reasonableness

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This commit is contained in:
Anthony Towns 2018-08-09 01:52:42 +10:00
parent b5591ca0b0
commit 48618daf26
1 changed files with 9 additions and 1 deletions
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10
src/wallet/rpcwallet.cpp
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@ -2982,8 +2982,16 @@ static UniValue settxfee(const JSONRPCRequest& request)
LOCK2(cs_main, pwallet->cs_wallet); LOCK2(cs_main, pwallet->cs_wallet);
CAmount nAmount = AmountFromValue(request.params[0]); CAmount nAmount = AmountFromValue(request.params[0]);
CFeeRate tx_fee_rate(nAmount, 1000);
if (tx_fee_rate == 0) {
// automatic selection
} else if (tx_fee_rate < ::minRelayTxFee) {
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be less than min relay tx fee (%s)", ::minRelayTxFee.ToString()));
} else if (tx_fee_rate < pwallet->m_min_fee) {
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be less than wallet min fee (%s)", pwallet->m_min_fee.ToString()));
}
pwallet->m_pay_tx_fee = CFeeRate(nAmount, 1000); pwallet->m_pay_tx_fee = tx_fee_rate;
return true; return true;
} }