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Diffstat (limited to '')
-rw-r--r-- | lib/Lintian/Check/Libraries/Shared/FilePermissions.pm | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Libraries/Shared/FilePermissions.pm b/lib/Lintian/Check/Libraries/Shared/FilePermissions.pm new file mode 100644 index 0000000..663205e --- /dev/null +++ b/lib/Lintian/Check/Libraries/Shared/FilePermissions.pm @@ -0,0 +1,72 @@ +# 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 |