Sys::Syslog(3) Perl Programmers Reference Guide Sys::Syslog(3)NAME
Sys::Syslog, openlog, closelog, setlogmask, syslog - Perl
interface to the UNIX syslog(3) calls
SYNOPSIS
use Sys::Syslog; # all except setlogsock, or:
use Sys::Syslog qw(:DEFAULT setlogsock); # default set, plus setlogsock
setlogsock $sock_type;
openlog $ident, $logopt, $facility;
syslog $priority, $format, @args;
$oldmask = setlogmask $mask_priority;
closelog;
DESCRIPTIONSys::Syslog is an interface to the UNIX syslog(3) program.
Call syslog() with a string priority and a list of
printf() args just like syslog(3).
Syslog provides the functions:
openlog $ident, $logopt, $facility
$ident is prepended to every message. $logopt
contains zero or more of the words pid, ndelay, cons,
nowait. $facility specifies the part of the system
syslog $priority, $format, @args
If $priority permits, logs ($format, @args) printed
as by printf(3V), with the addition that %m is
replaced with "$!" (the latest error message).
setlogmask $mask_priority
Sets log mask $mask_priority and returns the old
mask.
setlogsock $sock_type (added in 5.004_02)
Sets the socket type to be used for the next call to
openlog() or syslog() and returns TRUE on success,
undef on failure.
A value of 'unix' will connect to the UNIX domain
socket returned by _PATH_LOG in syslog.ph. A value
of 'inet' will connect to an INET socket returned by
getservbyname(). Any other value croaks.
The default is for the INET socket to be used.
closelog
Closes the log file.
Note that openlog now takes three arguments, just like
openlog(3).
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Sys::Syslog(3) Perl Programmers Reference Guide Sys::Syslog(3)EXAMPLES
openlog($program, 'cons,pid', 'user');
syslog('info', 'this is another test');
syslog('mail|warning', 'this is a better test: %d', time);
closelog();
syslog('debug', 'this is the last test');
setlogsock('unix');
openlog("$program $$", 'ndelay', 'user');
syslog('notice', 'fooprogram: this is really done');
setlogsock('inet');
$! = 55;
syslog('info', 'problem was %m'); # %m == $! in syslog(3)DEPENDENCIESSys::Syslog needs syslog.ph, which can be created with
h2ph.
SEE ALSO
the syslog(3) manpage
AUTHOR
Tom Christiansen <tchrist@perl.com> and Larry Wall
<larry@wall.org>. UNIX domain sockets added by Sean
Robinson <robinson_s@sc.maricopa.edu> with support from
Tim Bunce <Tim.Bunce@ig.co.uk> and the perl5-porters
mailing list.
16/Sep/1999 perl 5.005, patch 03 2
