/usr/share/doc/libnet-server-mail-perl/examples/smtpd-select.pl is in libnet-server-mail-perl 0.22-1ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | #!/usr/bin/perl -w
#
# Olivier Poitrey <rs@rhapsodyk.net>
# 8th november 2002
#
# smtpd-select.pl: A dummy SMTP server using Net::Server::Mail and
# IO::Select.
require 5.006;
use strict;
use POSIX qw(setsid);
use Getopt::Std;
use IO::Socket;
use IO::Select;
use Net::Server::Mail::ESMTP;
my %opts = (p => 25, h => 'localhost');
getopts('p:h:', \%opts);
# become a daemon
fork and exit;
setsid;
# start to listen
my $server = new IO::Socket::INET
(
Listen => 1,
LocalPort => $opts{p},
LocalHost => $opts{h},
) or die "can't listen $opts{h}:$opts{p}";
my $select = new IO::Select $server;
my(@ready, $fh, %session_pool);
while(@ready = $select->can_read)
{
foreach $fh (@ready)
{
if($fh == $server)
{
my $new = $server->accept();
$select->add($new);
$new->blocking(0);
my $smtp = new Net::Server::Mail::ESMTP socket => $new
or die "can't start server on port $opts{p}";
$smtp->register('Net::Server::Mail::ESMTP::PIPELINING');
$smtp->register('Net::Server::Mail::ESMTP::8BITMIME');
$smtp->banner();
$session_pool{$new} = $smtp;
}
else
{
my $operation = join '', <$fh>;
my $rv = $session_pool{$fh}->process_once($operation);
if(defined $rv)
{
$select->remove($fh);
delete $session_pool{$fh};
$fh->close();
}
}
}
}
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