IPV6_V6ONLY       299 source4/heimdal/lib/roken/socket.c #if defined(IPV6_V6ONLY) && defined(HAVE_SETSOCKOPT)
IPV6_V6ONLY       300 source4/heimdal/lib/roken/socket.c     setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void *)&val, sizeof(val));