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#include "funding_tx.h"
#include <bitcoin/pubkey.h>
#include <bitcoin/script.h>
#include <bitcoin/tx.h>
#include <ccan/ptrint/ptrint.h>
#include <common/permute_tx.h>
#include <common/utxo.h>
#ifndef SUPERVERBOSE
#define SUPERVERBOSE(...)
#endif
struct bitcoin_tx *funding_tx(const tal_t *ctx,
u16 *outnum,
const struct utxo **utxomap,
u64 funding_satoshis,
const struct pubkey *local_fundingkey,
const struct pubkey *remote_fundingkey,
u64 change_satoshis,
const struct pubkey *changekey,
const struct ext_key *bip32_base)
{
u8 *wscript;
struct bitcoin_tx *tx;
tx = tx_spending_utxos(ctx, utxomap, bip32_base, change_satoshis != 0);
tx->output[0].amount = funding_satoshis;
wscript = bitcoin_redeem_2of2(tx, local_fundingkey, remote_fundingkey);
SUPERVERBOSE("# funding witness script = %s\n",
tal_hex(wscript, wscript));
tx->output[0].script = scriptpubkey_p2wsh(tx, wscript);
tal_free(wscript);
if (change_satoshis != 0) {
const void *map[2];
map[0] = int2ptr(0);
map[1] = int2ptr(1);
tx->output[1].script = scriptpubkey_p2wpkh(tx, changekey);
tx->output[1].amount = change_satoshis;
permute_outputs(tx->output, NULL, map);
*outnum = (map[0] == int2ptr(0) ? 0 : 1);
} else {
*outnum = 0;
}
permute_inputs(tx->input, (const void **)utxomap);
return tx;
}