rtalloc1
rt = rtalloc1((struct sockaddr *)&sin6, 0);
rt = rtalloc1(dst, 0);
if ((rt1 = rtalloc1(rt->rt_gateway, 1)) == NULL) {
if ((rt = rtalloc1((const struct sockaddr*)&dst, 1)) == NULL)
rt = rtalloc1((struct sockaddr *)&sin, 0);
if ((rt = rtalloc1(dst, 0)) != NULL) {
rt = rtalloc1(ifa->ifa_addr, 0);
rt = rtalloc1(ifa->ifa_addr, 0);
rt = rtalloc1(rtcache_getdst(ro), flag);
rt = rtalloc1(dst, 0);
rtalloc1(const struct sockaddr *, int);
rt = rtalloc1(sa, 0);
rt = rtalloc1(sintosa(&dst), 0);
_rt = rtalloc1(dst, 0);
rt = rtalloc1(&u.sa, 0);
rt = rtalloc1(dst, 1);
rt = rtalloc1(sin6tosa(&sin6), 0);
rt = rtalloc1(dst, 1);
rt = rtalloc1(sin6tosa(&mltaddr), 0);
rt = rtalloc1(sin6tosa(&mltaddr), 0);
rt = rtalloc1(&u.sa, 0);
rt = rtalloc1(sin6tosa(&sin6), 0);
rt = rtalloc1(sin6tocsa(addr), 0);
rt = rtalloc1(sin6tosa(&tsin6), 0);