v6only 25 tools/testing/selftests/net/reuseaddr_conflict.c int v6only = 1; v6only 56 tools/testing/selftests/net/reuseaddr_conflict.c if (ipv6 && setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&v6only, v6only 57 tools/testing/selftests/net/reuseaddr_conflict.c sizeof(v6only)) < 0) {