use Socket;
use Sys::Hostname;
+# adapted from syslog.pl
#
-# syslog.pl
-#
-# $Log: syslog.pl,v $
-#
-# tom christiansen <tchrist@convex.com>
+# Tom Christiansen <tchrist@convex.com>
# modified to use sockets by Larry Wall <lwall@jpl-devvax.jpl.nasa.gov>
# NOTE: openlog now takes three arguments, just like openlog(3)
-#
-# call syslog() with a string priority and a list of printf() args
-# like syslog(3)
-#
-# usage: use Syslog;
-#
-# then (put these all in a script to test function)
-#
-# 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 $$",'ndelay','user');
-# syslog('notice','fooprogram: this is really done');
-#
-# $! = 55;
-# syslog('info','problem was %m'); # %m == $! in syslog(3)
-$host = hostname() unless $host; # set $Syslog::host to change
+=head1 NAME
+
+Sys::Syslog, openlog, closelog, setlogmask, syslog - Perl interface to the UNIX syslog(3) calls
+
+=head1 SYNOPSIS
+
+ use Sys::Syslog;
+
+ openlog $ident, $logopt, $facility;
+ syslog $priority, $format, @args;
+ $oldmask = setlogmask $mask_priority;
+ closelog;
+
+=head1 DESCRIPTION
+
+Sys::Syslog is an interface to the UNIX C<syslog(3)> program.
+Call C<syslog()> with a string priority and a list of C<printf()> args
+just like C<syslog(3)>.
+
+Syslog provides the functions:
+
+=over
+
+=item openlog $ident, $logopt, $facility
+
+I<$ident> is prepended to every message.
+I<$logopt> contains one or more of the words I<pid>, I<ndelay>, I<cons>, I<nowait>.
+I<$facility> specifies the part of the system
+
+=item syslog $priority, $format, @args
+
+If I<$priority> permits, logs I<($format, @args)>
+printed as by C<printf(3V)>, with the addition that I<%m>
+is replaced with C<"$!"> (the latest error message).
+
+=item setlogmask $mask_priority
+
+Sets log mask I<$mask_priority> and returns the old mask.
+
+=item closelog
+
+Closes the log file.
+
+=back
+
+Note that C<openlog> now takes three arguments, just like C<openlog(3)>.
+
+=head1 EXAMPLES
+
+ openlog($program, 'cons,pid', 'user');
+ syslog('info', 'this is another test');
+ syslog('mail|warning', 'this is a better test: %d', time);
+ closelog();
+
+ syslog('debug', 'this is the last test');
+ openlog("$program $$", 'ndelay', 'user');
+ syslog('notice', 'fooprogram: this is really done');
+
+ $! = 55;
+ syslog('info', 'problem was %m'); # %m == $! in syslog(3)
+
+=head1 DEPENDENCIES
+
+B<Sys::Syslog> needs F<syslog.ph>, which can be created with C<h2ph>.
+
+=head1 SEE ALSO
+
+L<syslog(3)>
+
+=head1 AUTHOR
+
+Tom Christiansen E<lt>F<tchrist@perl.com>E<gt> and Larry Wall E<lt>F<larry@wall.org>E<gt>
+
+=cut
require 'syslog.ph';
$whoami = $ident;
- if (!$ident && $mask =~ /^(\S.*):\s?(.*)/) {
+ if (!$whoami && $mask =~ /^(\S.*?):\s?(.*)/) {
$whoami = $1;
$mask = $2;
}
sub xlate {
local($name) = @_;
- $name =~ y/a-z/A-Z/;
+ $name = uc $name;
$name = "LOG_$name" unless $name =~ /^LOG_/;
$name = "Sys::Syslog::$name";
- eval(&$name) || -1;
+ defined &$name ? &$name : -1;
}
sub connect {
+ unless ($host) {
+ require Sys::Hostname;
+ my($host_uniq) = Sys::Hostname::hostname();
+ ($host) = $host_uniq =~ /([A-Za-z0-9_.-]+)/; # allow FQDN (inc _)
+ }
my $udp = getprotobyname('udp');
my $syslog = getservbyname('syslog','udp');
my $this = sockaddr_in($syslog, INADDR_ANY);
}
1;
-