/usr/share/perl5/IM/Log.pm is in im 1:152-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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################################################################
###
### Log.pm
###
### Author: Internet Message Group <img@mew.org>
### Created: Apr 23, 1997
### Revised: Apr 23, 2007
###
my $PM_VERSION = "IM::Log.pm version 20151220(IM152)";
package IM::Log;
require 5.003;
require Exporter;
use IM::Config qw(expand_path used_selectors msg_mode);
use IM::Util;
use integer;
use strict;
use vars qw(@ISA @EXPORT);
@ISA = qw(Exporter);
@EXPORT = qw(log_action);
use vars qw($initialized);
##### WRITE DISPATCHING ACTION HISTORY #####
#
# log_action(protocol, server, to, stat, response)
# protocol: current protocol to be logged
# server: server name
# stat: result status to be logged
# to: list of recipients
# return value: none
#
sub log_action($$$$;@) {
my($proto, $server, $to, $stat, @resp) = @_;
# my($proto, $server, $id, $to, $stat, @resp) = @_;
return if ($main::Log_file eq '' && !$main::opt_syslog);
unless (defined($initialized)) {
$initialized = 1;
if ($main::opt_syslog) {
require Socket && import Socket;
require 'sys/syslog.ph';
unless (socket(SYSLOG, &AF_UNIX, &SOCK_DGRAM, 0)) {
im_warn("syslog socket: $!\n");
return;
}
unless (-S &_PATH_LOG) {
im_warn(&_PATH_LOG . " not found\n");
return;
}
my $sun = sockaddr_un(&_PATH_LOG);
unless (connect(SYSLOG, $sun)) {
im_warn("syslog connect: $!\n");
return;
}
} else {
# eval 'use IM::Folder';
}
}
my($tm_sec, $tm_min, $tm_hour, $tm_mday, $tm_mon, $tm_year)
= localtime(time);
my $msg = '';
$msg = sprintf "%d/%02d/%02d %02d:%02d:%02d ",
$tm_year + 1900, $tm_mon+1, $tm_mday, $tm_hour, $tm_min, $tm_sec
unless ($main::opt_syslog);
$msg .= "proto=$proto";
$msg .= " server=$server" if ($server);
$msg .= " id=$main::Cur_mid" if ($main::Cur_mid);
my $cfg = &used_selectors();
$msg .= " from=$main::Sender ($cfg)" if ($cfg ne '');
$msg .= " to=$to" if ($to ne '');
if ($#resp >= 0) {
$msg .= " stat=$stat (" . join('/', @resp) . ')';
} else {
$msg .= " stat=$stat";
}
if ($main::opt_syslog) {
my $pname = progname() . "[$$]";
my $sum = &LOG_MAIL + &LOG_INFO;
send(SYSLOG, "<$sum>$pname: $msg", 0);
return;
}
my $file = expand_path($main::Log_file);
return unless ($file =~ /(.+)/);
if ($> != 0) {
$file = $1; # to pass through taint check
}
&msg_mode(1);
unless (im_open(\*HISTORY, ">>$file")) {
im_warn("can't open history file: $file ($!)\n");
return;
}
unless (print HISTORY "$msg\n") {
im_warn("can't write to history file: $file ($!)\n");
close(HISTORY);
return;
}
unless (close(HISTORY)) {
im_warn("can't write to history file: $file ($!)\n");
}
}
1;
__END__
=head1 NAME
IM::Log - IM log handler
=head1 SYNOPSIS
use IM::Log;
$main::Log_file = "putlog";
log_action($proto, $server, $to, $stat, @resp);
=head1 DESCRIPTION
The I<IM::Log> module handles log file of IM.
This modules is provided by IM (Internet Message).
=head1 COPYRIGHT
IM (Internet Message) is copyrighted by IM developing team.
You can redistribute it and/or modify it under the modified BSD
license. See the copyright file for more details.
=cut
### Copyright (C) 1997, 1998, 1999 IM developing team
### All rights reserved.
###
### Redistribution and use in source and binary forms, with or without
### modification, are permitted provided that the following conditions
### are met:
###
### 1. Redistributions of source code must retain the above copyright
### notice, this list of conditions and the following disclaimer.
### 2. Redistributions in binary form must reproduce the above copyright
### notice, this list of conditions and the following disclaimer in the
### documentation and/or other materials provided with the distribution.
### 3. Neither the name of the team nor the names of its contributors
### may be used to endorse or promote products derived from this software
### without specific prior written permission.
###
### THIS SOFTWARE IS PROVIDED BY THE TEAM AND CONTRIBUTORS ``AS IS'' AND
### ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
### IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
### PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE TEAM OR CONTRIBUTORS BE
### LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
### CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
### SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
### BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
### WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
### OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
### IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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