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.TH SYSLOG.H 3HEAD "Sep 10, 2003"
.SH NAME
syslog.h, syslog \- definitions for system error logging
.SH SYNOPSIS
.LP
.nf
#include <\fBsyslog.h\fR>
.fi

.SH DESCRIPTION
.sp
.LP
The <\fBsyslog.h\fR> header defines the following symbolic constants, zero or
more of which can be OR'ed together to form the \fBlogopt\fR option of
\fBopenlog()\fR:
.sp
.ne 2
.na
\fB\fBLOG_PID\fR\fR
.ad
.RS 14n
Log the process ID with each message.
.RE

.sp
.ne 2
.na
\fB\fBLOG_CONS\fR\fR
.ad
.RS 14n
Log to the system console on error.
.RE

.sp
.ne 2
.na
\fB\fBLOG_NDELAY\fR\fR
.ad
.RS 14n
Connect to syslog daemon immediately.
.RE

.sp
.ne 2
.na
\fB\fBLOG_ODELAY\fR\fR
.ad
.RS 14n
Delay open until \fBsyslog()\fR is called.
.RE

.sp
.ne 2
.na
\fB\fBLOG_NOWAIT\fR\fR
.ad
.RS 14n
Do not wait for child processes.
.RE

.sp
.LP
The following symbolic constants are defined as possible values of the
\fIfacility\fR argument to \fBopenlog()\fR:
.sp
.ne 2
.na
\fB\fBLOG_KERN\fR\fR
.ad
.RS 14n
reserved for message generated by the system
.RE

.sp
.ne 2
.na
\fB\fBLOG_USER\fR\fR
.ad
.RS 14n
message generated by a process
.RE

.sp
.ne 2
.na
\fB\fBLOG_MAIL\fR\fR
.ad
.RS 14n
reserved for message generated by mail system
.RE

.sp
.ne 2
.na
\fB\fBLOG_NEWS\fR\fR
.ad
.RS 14n
reserved for message generated by news system
.RE

.sp
.ne 2
.na
\fB\fBLOG_UUCP\fR\fR
.ad
.RS 14n
reserved for message generated by UUCP system
.RE

.sp
.ne 2
.na
\fB\fBLOG_DAEMON\fR\fR
.ad
.RS 14n
reserved for message generated by system daemon
.RE

.sp
.ne 2
.na
\fB\fBLOG_AUTH\fR\fR
.ad
.RS 14n
reserved for message generated by authorization daemon
.RE

.sp
.ne 2
.na
\fB\fBLOG_CRON\fR\fR
.ad
.RS 14n
reserved for message generated by clock daemon
.RE

.sp
.ne 2
.na
\fB\fBLOG_LPR\fR\fR
.ad
.RS 14n
reserved for message generated by printer system
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL0\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL1\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL2\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL3\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL4\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL5\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL6\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.ne 2
.na
\fB\fBLOG_LOCAL7\fR\fR
.ad
.RS 14n
reserved for local use
.RE

.sp
.LP
The following is declared as a macro for constructing the \fImaskpri\fR
argument to \fBsetlogmask()\fR. The following macro expands to an expression of
type \fBint\fR when the argument \fIpri\fR is an expre ssion of type \fBint\fR:
.sp
.ne 2
.na
\fB\fBLOG_MASK(\fR\fIpri\fR\fB)\fR\fR
.ad
.RS 17n
a mask for priority \fIpri\fR
.RE

.sp
.LP
The following constants are defined as possible values for the \fIpriority\fR
argument of \fBsyslog()\fR:
.sp
.ne 2
.na
\fB\fBLOG_EMERG\fR\fR
.ad
.RS 15n
A panic condition was reported to all processes.
.RE

.sp
.ne 2
.na
\fB\fBLOG_ALERT\fR\fR
.ad
.RS 15n
A condition that should be corrected immediately.
.RE

.sp
.ne 2
.na
\fB\fBLOG_CRIT\fR\fR
.ad
.RS 15n
A critical condition.
.RE

.sp
.ne 2
.na
\fB\fBLOG_ERR\fR\fR
.ad
.RS 15n
An error message.
.RE

.sp
.ne 2
.na
\fB\fBLOG_WARNING\fR\fR
.ad
.RS 15n
A warning message.
.RE

.sp
.ne 2
.na
\fB\fBLOG_NOTICE\fR\fR
.ad
.RS 15n
A condition requiring special handling.
.RE

.sp
.ne 2
.na
\fB\fBLOG_INFO\fR\fR
.ad
.RS 15n
A general information message.
.RE

.sp
.ne 2
.na
\fB\fBLOG_DEBUG\fR\fR
.ad
.RS 15n
A message useful for debugging programs.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Standard
.TE

.SH SEE ALSO
.sp
.LP
.BR syslog (3C),
.BR attributes (7),
.BR standards (7)