ipf_htable_find
iph = ipf_htable_find(arg, ilp->ili_unit,
iph = ipf_htable_find(arg, unit, name);
iph = ipf_htable_find(arg, op->iplo_unit, op->iplo_name);
if (ipf_htable_find(arg, op->iplo_unit, op->iplo_name) != NULL) {
iph = ipf_htable_find(arg, op->iplo_unit, op->iplo_name);
extern iphtable_t *ipf_htable_find(void *, int, char *);
tab = ipf_htable_find(softl->ipf_back[i], unit, name);