n = g_strdup_printf("%s.%s", b->service_type, b->domain_name);
k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
g_free(n);
b->record_browser = avahi_record_browser_new(server, interface, protocol, k, record_browser_callback, b);
n = g_strdup_printf("%s.%s", b->service_type, b->domain_name);
k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
g_free(n);
b->record_browser = avahi_record_browser_new(server, interface, protocol, k, record_browser_callback, b);