ifg_req
struct ifg_req *ifg;
for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req);
len -= sizeof(struct ifg_req);
struct ifg_req ifgrq, *ifgp;
ifgr->ifgr_len += sizeof(struct ifg_req);
if ((error = copyout(&ifgrq, ifgp, sizeof(struct ifg_req))))
struct ifg_req ifgrq, *ifgp;
if ((error = copyout(&ifgrq, ifgp, sizeof(struct ifg_req))))
struct ifg_req *ifgru_groups;