if ((fd = socket(PF_ROUTE, SOCK_RAW, AF_UNSPEC)) < 0) {
avahi_log_error(__FILE__": socket(PF_ROUTE): %s", strerror(errno));
goto fail;
if ((fd = socket(PF_ROUTE, SOCK_RAW, AF_UNSPEC)) < 0) {
avahi_log_error(__FILE__": socket(PF_ROUTE): %s", strerror(errno));
goto fail;