Function json_fundchannel_complete

lightningd/opening_control.c:966–1054

}

static struct command_result *json_fundchannel_complete(struct command *cmd,
							const char *buffer,
							const jsmntok_t *obj UNNEEDED,
							const jsmntok_t *params)
{
	u8 *msg;
	struct node_id *id;
	struct bitcoin_txid *funding_txid;
	struct peer *peer;
	struct wally_psbt *funding_psbt;
	u32 *funding_txout_num = NULL;
	struct funding_channel *fc;

	if (!param(cmd, buffer, params,
		   p_req("id", param_node_id, &id),
		   p_req("psbt", param_psbt, &funding_psbt),
		   NULL))
		return command_param_failed();

	peer = peer_by_id(cmd->ld, id);
	if (!peer) {
		return command_fail(cmd, FUNDING_UNKNOWN_PEER, "Unknown peer");
	}

	if (peer->connected != PEER_CONNECTED)
		return command_fail(cmd, FUNDING_PEER_NOT_CONNECTED,
				    "Peer %s",
				    peer->connected == PEER_DISCONNECTED
				    ? "not connected" : "still connecting");

	if (!peer->uncommitted_channel
	    || !peer->uncommitted_channel->fc
	    || !peer->uncommitted_channel->fc->inflight)
		return command_fail(cmd, LIGHTNINGD, "No channel funding in progress.");

	if (peer->uncommitted_channel->fc->cmd)
		return command_fail(cmd, LIGHTNINGD, "Channel funding in progress.");

	fc = peer->uncommitted_channel->fc;

	/* Figure out the correct output, and perform sanity checks. */
	for (size_t i = 0; i < funding_psbt->tx->num_outputs; i++) {
		if (memeq(funding_psbt->tx->outputs[i].script,
			  funding_psbt->tx->outputs[i].script_len,
			  fc->funding_scriptpubkey,
			  tal_bytelen(fc->funding_scriptpubkey))) {
			if (funding_txout_num)
				return command_fail(cmd, FUNDING_PSBT_INVALID,
						    "Two outputs to open channel");
			funding_txout_num = tal(cmd, u32);
			*funding_txout_num = i;
		}
	}
	if (!funding_txout_num)
		return command_fail(cmd, FUNDING_PSBT_INVALID,
				    "No output to open channel");

	/* Can't really check amounts for elements. */