<syslog.h>(P) POSIX Programmer's Manual <syslog.h>(P)
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NAMEsyslog.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 Technology
-- 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 .
IEEE/The Open Group 2003 <syslog.h>(P)
