ipfw_iface_info
const ipfw_iface_info *ia, *ib;
ia = (const ipfw_iface_info *)a;
ib = (const ipfw_iface_info *)b;
ipfw_iface_info *info;
info = (ipfw_iface_info *)(olh + 1);
info = (ipfw_iface_info *)((caddr_t)info + olh->objsize);
ipfw_iface_info *i;
i = (ipfw_iface_info *)ipfw_get_sopt_space(da->sd, sizeof(*i));
size = count * sizeof(ipfw_iface_info) + sizeof(ipfw_obj_lheader);
olh->objsize = sizeof(ipfw_iface_info);