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lnwallet: never create zero-value outputs within the commitment transaction

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This commit is contained in:
Olaoluwa Osuntokun 2016-07-27 12:15:31 -07:00
parent c0614c0478
commit 4104a9bcde
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GPG key ID: 9CC5B105D03521A2
1 changed files with 8 additions and 3 deletions
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7
lnwallet/channel.go
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@ -1421,9 +1421,14 @@ func createCommitTx(fundingOutput *wire.TxIn, selfKey, theirKey *btcec.PublicKey
commitTx := wire.NewMsgTx() commitTx := wire.NewMsgTx()
commitTx.Version = 2 commitTx.Version = 2
commitTx.AddTxIn(fundingOutput) commitTx.AddTxIn(fundingOutput)
// TODO(roasbeef): don't make 0 BTC output...
// Avoid creating zero value outputs within the commitment transaction.
if amountToSelf != 0 {
commitTx.AddTxOut(wire.NewTxOut(int64(amountToSelf), payToUsScriptHash)) commitTx.AddTxOut(wire.NewTxOut(int64(amountToSelf), payToUsScriptHash))
}
if amountToThem != 0 {
commitTx.AddTxOut(wire.NewTxOut(int64(amountToThem), theirWitnessKeyHash)) commitTx.AddTxOut(wire.NewTxOut(int64(amountToThem), theirWitnessKeyHash))
}
return commitTx, nil return commitTx, nil
} }