pfi_get_ifaces
if (pfi_get_ifaces(filter, b->pfrb_caddr, &(b->pfrb_size)))
int pfi_get_ifaces(const char *, struct pfi_kif *, int *);
int pfi_get_ifaces(const char *, struct pfi_kif *, int *);
if (pfi_get_ifaces(filter, b.pfrb_caddr, &b.pfrb_size))
pfi_get_ifaces(io->pfiio_name, kif_buf, &io->pfiio_size);
void pfi_get_ifaces(const char *, struct pfi_kif *, int *);