Sys/Syslog

Section: Perl Programmers Reference Guide (3)
Updated: perl 5.003 with
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NAME

Sys::Syslog, openlog, closelog, setlogmask, syslog - Perl interface to the UNIX syslog(3) calls  

SYNOPSIS

    use Sys::Syslog;


    openlog $ident, $logopt, $facility;
    syslog $priority, $mask, $format, @args;
    $oldmask = setlogmask $mask_priority;
    closelog;


 

DESCRIPTION

Sys::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 one or more of the words pid, ndelay, cons, nowait. $facility specifies the part of the system
syslog $priority, $mask, $format, @args
If $priority and $mask permit, logs ($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.
closelog
Closes the log file.

Note that openlog now takes three arguments, just like openlog(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');
    openlog("$program $$", 'ndelay', 'user');
    syslog('notice', 'fooprogram: this is really done');


    $! = 55;
    syslog('info', 'problem was %m'); # %m == $! in syslog(3)


 

DEPENDENCIES

Sys::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 <lwall@sems.com>


 

Index

NAME
SYNOPSIS
DESCRIPTION
EXAMPLES
DEPENDENCIES
SEE ALSO
AUTHOR

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Time: 07:08:43 GMT, August 26, 2024