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gui: fix coin control input size accounting for taproot spends

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This commit is contained in:
Sebastian Falbesoner 2023-10-07 01:01:57 +02:00
parent 54bdb6e074
commit 00a52e6394
1 changed files with 13 additions and 1 deletions
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14
src/qt/coincontroldialog.cpp
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@ -421,7 +421,19 @@ void CoinControlDialog::updateLabels(CCoinControl& m_coin_control, WalletModel *
std::vector<unsigned char> witnessprogram;
if (out.txout.scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram))
{
nBytesInputs += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4);
// add input skeleton bytes (outpoint, scriptSig size, nSequence)
nBytesInputs += (32 + 4 + 1 + 4);
if (witnessversion == 0) { // P2WPKH
// 1 WU (witness item count) + 72 WU (ECDSA signature with len byte) + 34 WU (pubkey with len byte)
nBytesInputs += 107 / WITNESS_SCALE_FACTOR;
} else if (witnessversion == 1) { // P2TR key-path spend
// 1 WU (witness item count) + 65 WU (Schnorr signature with len byte)
nBytesInputs += 66 / WITNESS_SCALE_FACTOR;
} else {
// not supported, should be unreachable
throw std::runtime_error("Trying to spend future segwit version script");
}
fWitness = true;
}
else if(ExtractDestination(out.txout.scriptPubKey, address))