ipfr_newfrag
static ipfr_t *ipfr_newfrag __P((fr_info_t *, u_32_t, ipfr_t **));
fra = ipfr_newfrag(fin, pass, ifs->ifs_ipfr_heads);
fra = ipfr_newfrag(fin, pass, ifs->ifs_ipfr_nattab);
fra = ipfr_newfrag(fin, 0, ifs->ifs_ipfr_ipidtab);