func: static int nbd_reject_length(NBDClient *client, bool fatal, Error **errp)
  
  {
  
      int ret;
  
  
  
      assert(client->optlen);
  
      if (nbd_drop(client->ioc, client->optlen, errp) < 0) {
  
          return -EIO;
  
      }
  
      ret = nbd_negotiate_send_rep_err(client, NBD_REP_ERR_INVALID, errp,
  
                                       "option '%s' should have zero length",
  
                                       nbd_opt_lookup(client->opt));
  
      if (fatal && !ret) {
  
          error_setg(errp, "option '%s' should have zero length",
  
                     nbd_opt_lookup(client->opt));
  
          return -EINVAL;
  
      }
  
      return ret;
  
  }
  