ilbd_reply_err
void ilbd_reply_err(uint32_t *, size_t *, ilb_status_t);
ilbd_reply_err(reply_buf, &rbufsz, rc);
ilbd_reply_err(rbuf, rbufsz, ILB_STATUS_ENOMEM);
ilbd_reply_err(rbuf, rbufsz, ret);
ilbd_reply_err(rbuf, rbufsz, ILB_STATUS_ENOMEM);
ilbd_reply_err(rbuf, rbufsz, ret);