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#include <bitcoin/script.h>
#include <common/key_derive.h>
#include <common/utxo.h>
#include <wire/wire.h>
void towire_utxo(u8 **pptr, const struct utxo *utxo)
{
/* Is this a unilateral close output and needs the
* close_info? */
bool is_unilateral_close = utxo->close_info != NULL;
towire_bitcoin_txid(pptr, &utxo->txid);
towire_u32(pptr, utxo->outnum);
towire_u64(pptr, utxo->amount);
towire_u32(pptr, utxo->keyindex);
towire_bool(pptr, utxo->is_p2sh);
towire_bool(pptr, is_unilateral_close);
if (is_unilateral_close) {
towire_u64(pptr, utxo->close_info->channel_id);
towire_pubkey(pptr, &utxo->close_info->peer_id);
towire_pubkey(pptr, &utxo->close_info->commitment_point);
}
}
struct utxo *fromwire_utxo(const tal_t *ctx, const u8 **ptr, size_t *max)
{
struct utxo *utxo = tal(ctx, struct utxo);
fromwire_bitcoin_txid(ptr, max, &utxo->txid);
utxo->outnum = fromwire_u32(ptr, max);
utxo->amount = fromwire_u64(ptr, max);
utxo->keyindex = fromwire_u32(ptr, max);
utxo->is_p2sh = fromwire_bool(ptr, max);
if (fromwire_bool(ptr, max)) {
utxo->close_info = tal(utxo, struct unilateral_close_info);
utxo->close_info->channel_id = fromwire_u64(ptr, max);
fromwire_pubkey(ptr, max, &utxo->close_info->peer_id);
fromwire_pubkey(ptr, max, &utxo->close_info->commitment_point);
} else {
utxo->close_info = NULL;
}
return utxo;
}
struct bitcoin_tx *tx_spending_utxos(const tal_t *ctx,
const struct utxo **utxos,
const struct ext_key *bip32_base,
bool add_change_output)
{
struct bitcoin_tx *tx =
bitcoin_tx(ctx, tal_count(utxos), add_change_output ? 2 : 1);
for (size_t i = 0; i < tal_count(utxos); i++) {
tx->input[i].txid = utxos[i]->txid;
tx->input[i].index = utxos[i]->outnum;
tx->input[i].amount = tal_dup(tx, u64, &utxos[i]->amount);
if (utxos[i]->is_p2sh && bip32_base) {
struct pubkey key;
bip32_pubkey(bip32_base, &key, utxos[i]->keyindex);
tx->input[i].script =
bitcoin_scriptsig_p2sh_p2wpkh(tx, &key);
}
}
return tx;
}