syslog.h

<syslog.h>(P)							<syslog.h>(P)



NAME
       syslog.h - definitions for system error logging

SYNOPSIS
       #include <syslog.h>

DESCRIPTION
       The  <syslog.h>	header shall define the following symbolic constants,
       zero or more of which may be OR’ed together to form the logopt  option
       of openlog():

       LOG_PID
	      Log the process ID with each message.

       LOG_CONS
	      Log to the system console on error.

       LOG_NDELAY
	      Connect to syslog daemon immediately.

       LOG_ODELAY
	      Delay open until syslog() is called.

       LOG_NOWAIT
	      Do not wait for child processes.


       The  following  symbolic constants shall be defined as possible values
       of the facility argument to openlog():

       LOG_KERN
	      Reserved for message generated by the system.

       LOG_USER
	      Message generated by a process.

       LOG_MAIL
	      Reserved for message generated by mail system.

       LOG_NEWS
	      Reserved for message generated by news system.

       LOG_UUCP
	      Reserved for message generated by UUCP system.

       LOG_DAEMON
	      Reserved for message generated by system daemon.

       LOG_AUTH
	      Reserved for message generated by authorization daemon.

       LOG_CRON
	      Reserved for message generated by clock daemon.

       LOG_LPR
	      Reserved for message generated by printer system.

       LOG_LOCAL0
	      Reserved for local use.

       LOG_LOCAL1
	      Reserved for local use.

       LOG_LOCAL2
	      Reserved for local use.

       LOG_LOCAL3
	      Reserved for local use.

       LOG_LOCAL4
	      Reserved for local use.

       LOG_LOCAL5
	      Reserved for local use.

       LOG_LOCAL6
	      Reserved for local use.

       LOG_LOCAL7
	      Reserved for local use.


       The following shall be declared as macros for constructing the maskpri
       argument to setlogmask(). The following macros expand to an expression
       of type int when the argument pri is an expression of type int:

       LOG_MASK(pri)
	      A mask for priority pri.


       The following constants shall be defined as possible  values  for  the
       priority argument of syslog():

       LOG_EMERG
	      A panic condition was reported to all processes.

       LOG_ALERT
	      A condition that should be corrected immediately.

       LOG_CRIT
	      A critical condition.

       LOG_ERR
	      An error message.

       LOG_WARNING
	      A warning message.

       LOG_NOTICE
	      A condition requiring special handling.

       LOG_INFO
	      A general information message.

       LOG_DEBUG
	      A message useful for debugging programs.


       The  following  shall be declared as functions and may also be defined
       as macros. Function prototypes shall be provided.


	      void  closelog(void);
	      void  openlog(const char *, int, int);
	      int   setlogmask(int);
	      void  syslog(int, const char *, ...);

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       The System Interfaces volume of IEEE Std 1003.1-2001, closelog()

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic	 form
       from  IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface  (POSIX),  The  Open	Group
       Base  Specifications Issue 6, Copyright (C) 2001-2003 by the Institute
       of Electrical and Electronics Engineers, Inc and The  Open  Group.  In
       the  event  of  any  discrepancy between this version and the original
       IEEE and The Open Group Standard, the original IEEE and The Open Group
       Standard	 is  the  referee  document.  The  original  Standard  can be
       obtained online at http://www.opengroup.org/unix/online.html .



POSIX				     2003			<syslog.h>(P)