lreq
struct lifreq *lreqp, lreq;
strlcpy(lreq.lifr_name, lreqp->lifr_name,
sizeof (lreq.lifr_name));
if (ioctl(s, SIOCGLIFFLAGS, &lreq) < 0) {
if ((lreq.lifr_flags & IFF_UP) &&
!(lreq.lifr_flags & IFF_NOLOCAL) &&
!(lreq.lifr_flags & IFF_NOXMIT) &&
!(lreq.lifr_flags & IFF_LOOPBACK)) {
struct lreq *lrv_ul;
struct lreq *lrv_lk;
struct lreq *lr;