sintocsa
error = ip_if_output(ifp, m, sintocsa(dst), NULL);
error = ip_tso_output(ifp, m, sintocsa(&dst.v4), NULL);
error = ip_if_output(ifp, m, sintocsa(&dst.v4), NULL);
sa = sintocsa(&sin);
sa = sintocsa(&sin);
ifreq_setaddr(cmd, ifr, sintocsa(&ia->ia_addr));
ifreq_setdstaddr(cmd, ifr, sintocsa(&ia->ia_broadaddr));
ifreq_setdstaddr(cmd, ifr, sintocsa(&ia->ia_dstaddr));
(void)looutput(ifp, copym, sintocsa(dst), NULL);
struct ifaddr *ifa = ifa_ifwithladdr_psref(sintocsa(dst), &psref_ia);
sa = (m->m_flags & M_MCAST) ? sintocsa(rdst) : sintocsa(dst);
sintocsa(rdst) : sintocsa(dst), rt);
ifreq_setaddr(SIOCDIFADDR, &ifr, sintocsa(&sin));