Add debug outputs and fix prevtx issue

Author: remyers

channeld/channeld.c

@@ -4141,6 +4141,10 @@ static void splice_initiator_user_update(struct peer *peer, const u8 *inmsg)
 	ictx->tx_add_input_count = peer->splicing->tx_add_input_count;
 	ictx->tx_add_output_count = peer->splicing->tx_add_output_count;
 
+	ictx->shared_outpoint = tal(ictx, struct bitcoin_outpoint);
+	*ictx->shared_outpoint = peer->channel->funding;
+	ictx->funding_tx = bitcoin_tx_from_txid(peer, peer->channel->funding.txid);
+
 	/* If there no are no changes, we consider the splice user finalized */
 	if (!interactivetx_has_changes(ictx, ictx->desired_psbt)) {
 		splice_initiator_user_finalized(peer);

common/interactivetx.c

@@ -227,19 +227,35 @@ static char *send_next(const tal_t *ctx,
 
 		/* If this the shared channel input, we send funding txid in
 		 * in tlvs and do not send prevtx */
+		if (ictx->shared_outpoint) {
+			status_debug("ictx->shared_outpoint=%s",
+				    fmt_bitcoin_outpoint(tmpctx,
+				    			 ictx->shared_outpoint));
+		}
+		else {
+			status_debug("ictx->shared_outpoint = NULL");
+		}
+		status_debug("point=%s", fmt_bitcoin_outpoint(tmpctx, &point));
+
  		if (ictx->shared_outpoint
  			&& bitcoin_outpoint_eq(&point, ictx->shared_outpoint)) {
-			struct tlv_tx_add_input_tlvs *tlvs = tal(tmpctx, struct tlv_tx_add_input_tlvs);
+			struct tlv_tx_add_input_tlvs *tlvs = tlv_tx_add_input_tlvs_new(tmpctx);
 			tlvs->shared_input_txid = tal_dup(tlvs,
 							  struct bitcoin_txid,
 							  &point.txid);
+			status_debug("Adding shared input %s",
+				     tal_hexstr(ctx, &serial_id,
+				     		sizeof(serial_id)));
  			msg = towire_tx_add_input(NULL, cid, serial_id,
 						  NULL, in->input.index,
 						  in->input.sequence, tlvs);
  		} else {
 			msg = towire_tx_add_input(NULL, cid, serial_id,
 						  prevtx, in->input.index,
 						  in->input.sequence, NULL);
+			status_debug("Adding splice input %s",
+				     tal_hexstr(ctx, &serial_id,
+				     		sizeof(serial_id)));
 		}
 
 		tal_arr_remove(&set->added_ins, 0);