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#!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if 0; # not running under some shell
use strict;
use warnings;
use vars qw($PATH);
use IO::Socket;
use IO::Select;
use Getopt::Long;
use Mail::SRS qw(:all);
use Mail::SRS::Daemon qw(:all);
$PATH = '/tmp/srsd';
my ($secretfile, $help);
my $separator = $SRSSEP;
my $hashlength = $SRSHASHLENGTH;
my @secrets;
my $result = GetOptions (
"separator=s" => \$separator,
"secret=s" => \@secrets,
"secretfile=s" => \$secretfile,
"hashlength=i" => \$hashlength,
"help" => \$help,
);
if (!$result || $help) {
print << "EOH";
Usage: srs [flags] [address ...]
--separator=s Specify the initial separator to be - + or =
--secret=s Specify an SRS cryptographic secret
--secretfile=s Specify a file from which to read the secret
--hashlength=i Specify number of characters to use in the hash
--help Display this help
=s denotes a string argument. =i denotes an integer argument
Multiple addresses are permitted. Multiple secrets are permitted.
EOH
exit(1);
}
my $daemon = new Mail::SRS::Daemon(
Secret => \@secrets,
SecretFile => $secretfile,
HashLength => $hashlength,
Separator => $separator,
);
$daemon->run();
__END__
=head1 NAME
srsd - daemon interface to Mail::SRS
=head1 SYNOPSIS
srsd --secretfile=/etc/srs_secret
=head1 DESCRIPTION
The srsd daemon listens on a socket for SRS address transformation
requests. It transforms the addresses and returns the new addresses
on the socket.
It may be used from exim using ${readsocket ...}, from sendmail via
a TCP socket in a rule, and probably from other MTAs as well. See
http://www.anarres.org/projects/srs/ for examples.
Arguments take the form --name or --name=value.
=head1 ARGUMENTS
=head2 --separator
String, specified at most once. Defaults to $SRSSEP (C<=>).
Specify the initial separator for the SRS address. See L<Mail::SRS> for
details.
=head2 --secret
String, may be specified multiple times, at least one of --secret or
--secretfile must be specified.
Specify an SRS secret. The first specified secret is used for
encoding. All secrets are used for decoding.
=head2 --secretfile
String, specified at most once, at least one of --secret or
--secretfile must be specified.
A file to read for secrets. Secrets are specified once per line. The
first specified secret is used for encoding. Secrets are written
one per line. Blank lines and lines starting with a # are ignored.
If --secret is not given, then the secret file must be nonempty.
--secret will specify a primary secret and override --secretfile
if both are specified. However, secrets read from --secretfile will
still be used for decoding if both are specified.
=head2 --hashlength
Integer, may be specified at most once, defaults to 4.
Specify the number of base64 characters to use for the cryptographic
authentication code.
=head2 --help
Print some basic help.
=head1 PROTOCOL
A forward request:
FORWARD sender@source.com alias@forwarder.com
A reverse request:
REVERSE srs0+HHH=TT=domain=local-part@forwarder.com
A client called srsc has been included in this distribution for
testing purposes.
=head1 TODO
Add more daemon-related options. Path to socket. Document protocol.
=head1 SEE ALSO
L<Mail::SRS>, L<Mail::SRS::Daemon>, L<srsc>,
http://www.anarres.org/projects/srs/
=head1 AUTHOR
Shevek
CPAN ID: SHEVEK
cpan@anarres.org
http://www.anarres.org/projects/
=head1 COPYRIGHT
Copyright (c) 2004 Shevek. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut