Function json_sendpsbt

wallet/walletrpc.c:899–956

}

static struct command_result *json_sendpsbt(struct command *cmd,
					    const char *buffer,
					    const jsmntok_t *obj,
					    const jsmntok_t *params)
{
	struct command_result *res;
	struct sending_psbt *sending;
	struct wally_psbt *psbt;
	struct lightningd *ld = cmd->ld;
	u32 *reserve_blocks;

	if (!param(cmd, buffer, params,
		   p_req("psbt", param_psbt, &psbt),
		   p_opt_def("reserve", param_number, &reserve_blocks, 12 * 6),
		   NULL))
		return command_param_failed();

	sending = tal(cmd, struct sending_psbt);
	sending->cmd = cmd;
	sending->reserve_blocks = *reserve_blocks;

	psbt_finalize(psbt);
	sending->wtx = psbt_final_tx(sending, psbt);

	/* psbt contains info about which outputs are to external,
	 * and thus need a coin_move issued for them. We only
	 * notify if the transaction broadcasts */
	sending->psbt = tal_steal(sending, psbt);

	if (!sending->wtx)
		return command_fail(cmd, LIGHTNINGD,
				    "PSBT not finalizeable %s",
				    type_to_string(tmpctx, struct wally_psbt,
						   psbt));

	/* We have to find/locate the utxos that are ours on this PSBT,
	 * so that we know who to mark as used.
	 */
	res = match_psbt_inputs_to_utxos(cmd, psbt, NULL, &sending->utxos);
	if (res)
		return res;

	for (size_t i = 0; i < tal_count(sending->utxos); i++) {
		if (!wallet_reserve_utxo(ld->wallet, sending->utxos[i],
					 get_block_height(ld->topology),
					 sending->reserve_blocks))
			fatal("UTXO not reservable?");
	}

	/* Now broadcast the transaction */
	bitcoind_sendrawtx(cmd->ld->topology->bitcoind,
			   cmd->id,
			   tal_hex(tmpctx,
				   linearize_wtx(tmpctx, sending->wtx)),
			   false, sendpsbt_done, sending);

	return command_still_pending(cmd);
}