/usr/lib/perl5/Linux/Prctl/CapabilitySet.pm is in liblinux-prctl-perl 1.5.0-1build1.
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 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 | package Linux::Prctl::CapabilitySet;
use strict;
use warnings;
use Linux::Prctl;
use Tie::Hash;
use Carp qw(croak);
use vars qw(@ISA);
@ISA = qw(Tie::StdHash);
sub TIEHASH {
my ($class, $error, $flag) = @_;
if ($error) { croak $error; }
my $self = {__flag => $flag};
return bless($self, $class);
}
sub cap {
my ($self, $cap) = @_;
croak("Unknown capability: $cap") unless grep { $_ eq 'CAP_' . uc($cap) } @Linux::Prctl::EXPORT_OK;
my ($error, $val) = Linux::Prctl::constant('CAP_' . uc($cap));
if ($error) { croak $error; }
return $val
}
sub set_cap {
shift;
return Linux::Prctl->can('set_cap')->(@_);
}
sub get_cap {
shift;
return Linux::Prctl->can('get_cap')->(@_);
}
sub STORE {
my ($self, $key, $value) = @_;
$key = $self->cap($key);
$self->set_cap($self->{__flag}, $key, $value);
}
sub FETCH {
my ($self, $key) = @_;
$key = $self->cap($key);
return $self->get_cap($self->{__flag}, $key);
}
1;
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