PF_NETLINK
sd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
.nl_family = PF_NETLINK,
.dom_family = PF_NETLINK,
.nl_family = PF_NETLINK,
ATF_REQUIRE((fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) != -1);
ATF_REQUIRE((fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) != -1);
ATF_REQUIRE((fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) != -1);
ATF_REQUIRE((fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) != -1);