ifgr_group
strlcpy(ifgr.ifgr_group, group_name, IFNAMSIZ);
if (strlcpy(ifgr.ifgr_group, group_name, IFNAMSIZ) >= IFNAMSIZ)
error = if_addgroup(ifp, ifgr->ifgr_group);
error = if_delgroup(ifp, ifgr->ifgr_group);
if (!strcmp(ifgr->ifgr_group, IFG_ALL))
if (!strcmp(ifgl->ifgl_group->ifg_group, ifgr->ifgr_group)) {
strlcpy(ifgr.ifgr_group, vfr.vfr_value,
sizeof(ifgr.ifgr_group)) >= sizeof(ifgr.ifgr_group))