&reftitle.constants; &extension.constants.core; Constant Description LOG_CONS if there is an error while sending data to the system logger, write directly to the system console LOG_NDELAY open the connection to the logger immediately LOG_ODELAY (default) delay opening the connection until the first message is logged LOG_PERROR print log message also to standard error LOG_PID include PID with each message Constant Description LOG_EMERG system is unusable LOG_ALERT action must be taken immediately LOG_CRIT critical conditions LOG_ERR error conditions LOG_WARNING warning conditions LOG_NOTICE normal, but significant, condition LOG_INFO informational message LOG_DEBUG debug-level message