usr/include/syslog.h

/*      syslog.h        4.1     83/05/27        */

/*
 *  SYSLOG.H -- declarations for system logging program
 *
 *      These are used as the first parameter to logmsg().
 *      Their meanings are approximately as follows:
 *
 *      LOG_ALERT -- this priority should essentially never
 *              be used.  It applies only to messages that
 *              are so important that every user should be
 *              aware of them, e.g., a serious hardware failure.
 *      LOG_SALERT -- messages of this priority should be
 *              issued only when immediate attention is needed
 *              by a qualified system person, e.g., when some
 *              valuable system resource dissappears.  They get
 *              sent to a list of system people.
 *      LOG_EMERG -- Emergency messages are not sent to users,
 *              but represent major conditions.  An example
 *              might be hard disk failures.  These could be
 *              logged in a separate file so that critical
 *              conditions could be easily scanned.
 *      LOG_ERR -- these represent error conditions, such as soft
 *              disk failures, etc.
 *      LOG_CRIT -- such messages contain critical information,
 *              but which can not be classed as errors, for example,
 *              'su' attempts.
 *      LOG_WARNING -- issued when an abnormal condition has been
 *              detected, but recovery can take place.
 *      LOG_NOTICE -- something that falls in the class of
 *              "important information"; this class is informational
 *              but important enough that you don't want to throw
 *              it away casually.
 *      LOG_INFO -- information level messages.  These messages
 *              could be thrown away without problems, but should
 *              be included if you want to keep a close watch on
 *              your system.
 *      LOG_DEBUG -- it may be useful to log certain debugging
 *              information.  Normally this will be thrown away.
 */

/* some configuration parameters..... */
#define LOG_IPC                         /* set if using 4.2 IPC, else mpx */
#define LOG_HOST        "localhost"     /* name of host to log on */

/* defines for priorities */
#define LOG_ALERT       1       /* alert -- send to all users */
#define LOG_SALERT      2       /* subalert -- send to special users */
#define LOG_EMERG       3       /* emergency conditions */
#define LOG_ERROR       4       /* error */
#define LOG_ERR         4       /* synonym of LOG_ERROR */
#define LOG_CRIT        5       /* critical information */
#define LOG_WARNING     6       /* warning */
#define LOG_NOTICE      7       /* important information */
#define LOG_INFO        8       /* informational message */
#define LOG_DEBUG       9       /* debug level info */

/*
 *  Mode parameters to initlog.
 */
#define LOG_NULL        0       /* don't touch log */
#define LOG_SOUT        1       /* log standard & diag output */
#define LOG_DIAG        2       /* log diagnostic output */
#define LOG_INDEP       3       /* log independently */
#define LOG_CLOSE       4       /* close the log */

/*
 *  Status parameters to initlog.
 */
#define LOG_PID         0001    /* log the pid with each message */
#define LOG_TIME        0002    /* log the time with each message */
#define LOG_COOLIT      0004    /* suppress priority stuff */
#define LOG_DGRAM       0010    /* running over a datagram socket */