SIOCGIFDSTADDR_IN6
if (ioctl(sock, SIOCGIFDSTADDR_IN6, (caddr_t)&ifr6) == -1) {
if (ioctl(sock, SIOCGIFDSTADDR_IN6, (caddr_t)&ifr6) == -1) {
case SIOCGIFDSTADDR_IN6:
case SIOCGIFDSTADDR_IN6:
case SIOCGIFDSTADDR_IN6:
if (ioctl(s, SIOCGIFDSTADDR_IN6, (char *)&ifr) == -1) {