/usr/lib/perl5/Net/RawIP/tcphdr.pm is in libnet-rawip-perl 0.25-1build3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | package Net::RawIP::tcphdr;
use strict;
use warnings;
our $VERSION = '0.24';
use Class::Struct qw(struct);
our @tcphdr = qw(source dest seq ack_seq doff res1 res2 urg ack psh rst syn
fin window check urg_ptr data);
struct ( 'Net::RawIP::tcphdr' => [map { $_ => '$' } @tcphdr ] );
1;
|