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# libraries/shared/file-permissions -- lintian check script -*- perl -*-
# Copyright (C) 1998 Christian Schwarz
# Copyright (C) 2018-2019 Chris Lamb <lamby@debian.org>
# Copyright (C) 2021 Felix Lechner
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, you can find it on the World Wide
# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
package Lintian::Check::Libraries::Shared::FilePermissions;
use v5.20;
use warnings;
use utf8;
use Const::Fast;
use Moo;
use namespace::clean;
with 'Lintian::Check';
const my $WIDELY_READABLE => oct(644);
sub visit_installed_files {
my ($self, $item) = @_;
return
unless $item->is_file;
# shared library
return
unless @{$item->elf->{SONAME} // [] };
# Yes. But if the library has an INTERP section, it's
# designed to do something useful when executed, so don't
# report an error. Also give ld.so a pass, since it's
# special.
$self->pointed_hint('shared-library-is-executable',
$item->pointer, $item->octal_permissions)
if $item->is_executable
&& !$item->elf->{INTERP}
&& $item->name !~ m{^lib.*/ld-[\d.]+\.so$};
$self->pointed_hint('odd-permissions-on-shared-library',
$item->pointer, $item->octal_permissions)
if !$item->is_executable
&& $item->operm != $WIDELY_READABLE;
return;
}
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
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