/usr/lib/x86_64-linux-gnu/perl5/5.24/Net/Libdnet/Tun.pm is in libnet-libdnet-perl 0.98-1+b4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# $Id: Tun.pm 57 2012-11-02 16:39:39Z gomor $
#
package Net::Libdnet::Tun;
use strict; use warnings;
use base qw(Class::Gomor::Array);
our @AS = qw(
src
dst
_mtu
_handle
);
__PACKAGE__->cgBuildIndices;
__PACKAGE__->cgBuildAccessorsScalar(\@AS);
use Net::Libdnet qw(:tun);
sub _getMtu {
my ($src) = @_;
my $h = dnet_intf_open() or return;
my $intf = dnet_intf_get_src($h, $src) or return;
$intf->{intf_mtu} || undef;
}
sub new {
my $self = shift->SUPER::new(@_);
my $mtu = _getMtu($self->src)
or die("Tun::new: unable to get mtu");
$self->_mtu($mtu);
my $handle = dnet_tun_open($self->src, $self->dst, $mtu)
or die("Tun::new: unable to open");
$self->_handle($handle);
$self;
}
sub fileno {
my $self = shift;
dnet_tun_fileno($self->_handle);
}
sub name {
my $self = shift;
dnet_tun_name($self->_handle);
}
sub send {
my $self = shift;
my ($buf) = @_;
dnet_tun_send($self->_handle, $buf, length($buf));
}
sub recv {
my $self = shift;
dnet_tun_recv($self->_handle, $self->_mtu);
}
sub DESTROY {
my $self = shift;
defined($self->_handle) && dnet_tun_close($self->_handle);
}
1;
__END__
=head1 NAME
Net::Libdnet::Tun - high level API to access libdnet tun_* functions
=head1 SYNOPSIS
XXX
=head1 DESCRIPTION
XXX
=head1 METHODS
=over 4
=item B<new>
=item B<fileno>
=item B<name>
=item B<recv>
=item B<send>
=back
=head1 AUTHOR
Patrice E<lt>GomoRE<gt> Auffret
=head1 COPYRIGHT AND LICENSE
You may distribute this module under the terms of the BSD license. See LICENSE file in the source distribution archive.
Copyright (c) 2008-2012, Patrice <GomoR> Auffret
=cut
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