1 files changed, 74 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Files/Ownership.pm b/lib/Lintian/Check/Files/Ownership.pm
new file mode 100644
index 0000000..bbea4b9
--- /dev/null
+++ b/lib/Lintian/Check/Files/Ownership.pm
@@ -0,0 +1,74 @@
+# files/ownership -- lintian check script -*- perl -*-
+
+# Copyright (C) 1998 Christian Schwarz and Richard Braakman
+#
+# 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::Files::Ownership;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Const::Fast;
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+const my $SLASH => q{/};
+
+const my $MAXIMUM_LOW_RESERVED => 99;
+const my $MAXIMUM_HIGH_RESERVED => 64_999;
+const my $MINIMUM_HIGH_RESERVED => 60_000;
+const my $NOBODY => 65_534;
+
+sub visit_installed_files {
+    my ($self, $item) = @_;
+
+    $self->pointed_hint('wrong-file-owner-uid-or-gid', $item->pointer,
+        $item->uid . $SLASH . $item->gid)
+      if out_of_bounds($item->uid)
+      || out_of_bounds($item->gid);
+
+    return;
+}
+
+sub out_of_bounds {
+    my ($id) = @_;
+
+    return 0
+      if $id <= $MAXIMUM_LOW_RESERVED;
+
+    return 0
+      if $id == $NOBODY;
+
+    return 0
+      if $id >= $MINIMUM_HIGH_RESERVED
+      && $id <= $MAXIMUM_HIGH_RESERVED;
+
+    return 1;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et