if (avahi_s_entry_group_is_empty(hw->entry_group)) {
char name[AVAHI_LABEL_MAX], mac[256];
avahi_format_mac_address(mac, sizeof(mac), hw->mac_address, hw->mac_address_size);
snprintf(name, sizeof(name), "%s [%s]", m->server->host_name, mac);
if (avahi_s_entry_group_is_empty(hw->entry_group)) {
char name[AVAHI_LABEL_MAX], mac[256];
avahi_format_mac_address(mac, sizeof(mac), hw->mac_address, hw->mac_address_size);
snprintf(name, sizeof(name), "%s [%s]", m->server->host_name, mac);