Function wally_map_set_unknown

bitcoin/psbt.c:509–540

}

static bool wally_map_set_unknown(const tal_t *ctx,
				  struct wally_map *map,
				  const u8 *key,
				  const void *value,
				  size_t value_len)
{
	size_t exists_at;
	struct wally_map_item *item;

	assert(value_len != 0);
	if (wally_map_find(map, key, tal_bytelen(key), &exists_at) != WALLY_OK)
		return false;

	/* If not exists, add */
	if (exists_at == 0) {
		bool ok;
		tal_wally_start();
		ok = wally_map_add(map, key, tal_bytelen(key),
			      (unsigned char *) memcheck(value, value_len), value_len)
			== WALLY_OK;
		tal_wally_end(ctx);
		return ok;
	}

	/* Already in map, update entry */
	item = &map->items[exists_at - 1];
	tal_resize(&item->value, value_len);
	memcpy(item->value, memcheck(value, value_len), value_len);
	item->value_len = value_len;

	return true;
}

void psbt_input_set_unknown(const tal_t *ctx,
			    struct wally_psbt_input *in,