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Diffstat (limited to '')
-rw-r--r-- | lib/Lintian/Check/Libraries/Shared/Soname.pm | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Libraries/Shared/Soname.pm b/lib/Lintian/Check/Libraries/Shared/Soname.pm new file mode 100644 index 0000000..9887e3b --- /dev/null +++ b/lib/Lintian/Check/Libraries/Shared/Soname.pm @@ -0,0 +1,123 @@ +# libraries/shared/soname -- lintian check script -*- perl -*- + +# Copyright (C) 1998 Christian Schwarz and Richard Braakman +# Copyright (C) 2012 Kees Cook +# Copyright (C) 2017-2020 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::Soname; + +use v5.20; +use warnings; +use utf8; + +use Const::Fast; +use List::SomeUtils qw(any none uniq); + +use Moo; +use namespace::clean; + +with 'Lintian::Check'; + +const my $SPACE => q{ }; +const my $SLASH => q{/}; + +has DEB_HOST_MULTIARCH => ( + is => 'rw', + lazy => 1, + default => sub { + my ($self) = @_; + + return $self->data->architectures->deb_host_multiarch; + } +); + +sub installable { + my ($self) = @_; + + return + if $self->processable->type eq 'udeb'; + + my $architecture = $self->processable->fields->value('Architecture'); + my $multiarch_component = $self->DEB_HOST_MULTIARCH->{$architecture}; + + my @common_folders = qw{lib usr/lib}; + push(@common_folders, map { "$_/$multiarch_component" } @common_folders) + if length $multiarch_component; + + my @duplicated; + for my $item (@{$self->processable->installed->sorted_list}) { + + # For the package naming check, filter out SONAMEs where all the + # files are at paths other than /lib, /usr/lib and /usr/lib/<MA-DIR>. + # This avoids false positives with plugins like Apache modules, + # which may have their own SONAMEs but which don't matter for the + # purposes of this check. + next + if none { $item->dirname eq $_ . $SLASH } @common_folders; + + # Also filter out nsswitch modules + next + if $item->basename =~ m{^ libnss_[^.]+\.so(?:\.\d+) $}x; + + push(@duplicated, @{$item->elf->{SONAME} // []}); + } + + my @sonames = uniq @duplicated; + + # try to strip transition strings + my $shortened_name = $self->processable->name; + $shortened_name =~ s/c102\b//; + $shortened_name =~ s/c2a?\b//; + $shortened_name =~ s/\dg$//; + $shortened_name =~ s/gf$//; + $shortened_name =~ s/v[5-6]$//; # GCC-5 / libstdc++6 C11 ABI breakage + $shortened_name =~ s/-udeb$//; + $shortened_name =~ s/^lib64/lib/; + + my $match_found = 0; + for my $soname (@sonames) { + + $soname =~ s/ ([0-9]) [.]so[.] /$1-/x; + $soname =~ s/ [.]so (?:[.]|\z) //x; + $soname =~ s/_/-/g; + + my $lowercase = lc $soname; + + $match_found = any { $lowercase eq $_ } + ($self->processable->name, $shortened_name); + + last + if $match_found; + } + + $self->hint('package-name-doesnt-match-sonames', + join($SPACE, sort @sonames)) + if @sonames && !$match_found; + + return; +} + +1; + +# Local Variables: +# indent-tabs-mode: nil +# cperl-indent-level: 4 +# End: +# vim: syntax=perl sw=4 sts=4 sr et |