ret_value->u.open.ret = open(data->u.open.path, data->u.open.flags, data->u.open.mode);
ret_value->fd = ret_value->u.open.ret;
ret_value->_errno = errno;
ret_value->u.open.ret = open(data->u.open.path, data->u.open.flags, data->u.open.mode);
ret_value->fd = ret_value->u.open.ret;
ret_value->_errno = errno;