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lnd: add litecoin support for Neutrino #3062

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lnd: add litecoin support for Neutrino #3062

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597efe5
changes to allow litecoin to work in neutrino mode
May 9, 2019
2b07ad1
contrib from @wakiyamap, copy DNSSeed from litecoinParams
Jun 15, 2019
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37 changes: 37 additions & 0 deletions chainparams.go
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Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,43 @@ func applyLitecoinParams(params *bitcoinNetParams, litecoinParams *litecoinNetPa
params.CoinbaseMaturity = litecoinParams.CoinbaseMaturity

copy(params.GenesisHash[:], litecoinParams.GenesisHash[:])
copy(params.GenesisBlock.Header.MerkleRoot[:],
litecoinParams.GenesisBlock.Header.MerkleRoot[:])
params.GenesisBlock.Header.Version =
litecoinParams.GenesisBlock.Header.Version
params.GenesisBlock.Header.Timestamp =
litecoinParams.GenesisBlock.Header.Timestamp
params.GenesisBlock.Header.Bits =
litecoinParams.GenesisBlock.Header.Bits
params.GenesisBlock.Header.Nonce =
litecoinParams.GenesisBlock.Header.Nonce
params.GenesisBlock.Transactions[0].Version =
litecoinParams.GenesisBlock.Transactions[0].Version
params.GenesisBlock.Transactions[0].LockTime =
litecoinParams.GenesisBlock.Transactions[0].LockTime
params.GenesisBlock.Transactions[0].TxIn[0].Sequence =
litecoinParams.GenesisBlock.Transactions[0].TxIn[0].Sequence
params.GenesisBlock.Transactions[0].TxIn[0].PreviousOutPoint.Index =
litecoinParams.GenesisBlock.Transactions[0].TxIn[0].PreviousOutPoint.Index
copy(params.GenesisBlock.Transactions[0].TxIn[0].SignatureScript[:],
litecoinParams.GenesisBlock.Transactions[0].TxIn[0].SignatureScript[:])
copy(params.GenesisBlock.Transactions[0].TxOut[0].PkScript[:],
litecoinParams.GenesisBlock.Transactions[0].TxOut[0].PkScript[:])
params.GenesisBlock.Transactions[0].TxOut[0].Value =
litecoinParams.GenesisBlock.Transactions[0].TxOut[0].Value
params.GenesisBlock.Transactions[0].TxIn[0].PreviousOutPoint.Hash =
chainhash.Hash{}
params.PowLimitBits = litecoinParams.PowLimitBits
params.PowLimit = litecoinParams.PowLimit

dnsSeeds := make([]chaincfg.DNSSeed, len(litecoinParams.DNSSeeds))
for i := 0; i < len(litecoinParams.DNSSeeds); i++ {
dnsSeeds[i] = chaincfg.DNSSeed{
Host: litecoinParams.DNSSeeds[i].Host,
HasFiltering: litecoinParams.DNSSeeds[i].HasFiltering,
}
}
params.DNSSeeds = dnsSeeds

// Address encoding magics
params.PubKeyHashAddrID = litecoinParams.PubKeyHashAddrID
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7 changes: 5 additions & 2 deletions config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -707,9 +707,12 @@ func loadConfig() (*config, error) {
"credentials for litecoind: %v", err)
return nil, err
}
case "neutrino":
// No need to get RPC parameters.

default:
str := "%s: only ltcd and litecoind mode supported for " +
"litecoin at this time"
str := "%s: only ltcd, litecoind, and neutrino mode " +
"supported for litecoin at this time"
return nil, fmt.Errorf(str, funcName)
}

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