sf_ffiles
if (sfp->sf_ffiles > INT64_MAX)
sbp->f_ffree = sfp->sf_ffiles;
sbp->sf_ffiles = fxdr_hyper(tl); tl += 2;
sfp->sf_ffiles != fxdr_hyper(tl))
sfp->sf_ffiles = fxdr_hyper(tl);
txdr_hyper(tval, &sfp->sf_ffiles);
tquad = fxdr_hyper(&sfp->sf_ffiles);