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;


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 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).
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)


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 <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.