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diff --git a/lib/Lintian/Debian/Control.pm b/lib/Lintian/Debian/Control.pm
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+# -*- perl -*-
+# Lintian::Debian::Control -- object for fields in d/control
+
+# Copyright (C) 2008 Russ Allbery
+# Copyright (C) 2009 Raphael Geissert
+# Copyright (C) 2020 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, see <http://www.gnu.org/licenses/>.
+
+package Lintian::Debian::Control;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Path::Tiny;
+use Syntax::Keyword::Try;
+use Unicode::UTF8 qw(valid_utf8 decode_utf8 encode_utf8);
+
+use Lintian::Deb822;
+use Lintian::Deb822::Section;
+use Lintian::Util qw($PKGNAME_REGEX);
+
+use Moo;
+use namespace::clean;
+
+=head1 NAME
+
+Lintian::Debian::Control - Lintian interface to d/control fields
+
+=head1 SYNOPSIS
+
+    use Lintian::Debian::Control;
+
+=head1 DESCRIPTION
+
+Lintian::Debian::Control provides access to fields in d/control.
+
+=head1 INSTANCE METHODS
+
+=over 4
+
+=item item
+=item source_fields
+=item installable_fields_by_name
+
+=cut
+
+has item => (is => 'rw');
+
+has source_fields => (
+    is => 'rw',
+    default => sub { return Lintian::Deb822::Section->new; },
+    coerce => sub {
+        my ($blessedref) = @_;
+        return ($blessedref // Lintian::Deb822::Section->new);
+    },
+);
+
+has installable_fields_by_name => (
+    is => 'rw',
+    default => sub { {} },
+    coerce => sub { my ($hashref) = @_; return ($hashref // {}); },
+);
+
+=item load
+
+=cut
+
+sub load {
+    my ($self, $item) = @_;
+
+    return
+      unless defined $item;
+
+    $self->item($item);
+
+    return
+      unless -r $item->unpacked_path;
+
+    my $deb822 = Lintian::Deb822->new;
+
+    my @sections;
+    try {
+        @sections = $deb822->read_file($item->unpacked_path);
+
+    } catch {
+        # If it is a syntax error, ignore it (we emit
+        # syntax-error-in-control-file in this case via
+        # control-file).
+        die map { encode_utf8($_) } $@
+          unless $@ =~ /syntax error/;
+
+        return;
+    }
+
+    # in theory, one could craft a package in which d/control is empty
+    my $source = shift @sections;
+    $self->source_fields($source);
+
+    my @named
+      = grep { $_->value('Package') =~ m{\A $PKGNAME_REGEX \Z}x }@sections;
+
+    my %by_name = map { $_->value('Package') => $_ } @named;
+
+    $self->installable_fields_by_name(\%by_name);
+
+    return;
+}
+
+=item installables
+
+Returns a list of the binary and udeb packages listed in the
+F<debian/control>.
+
+=cut
+
+sub installables {
+    my ($self) = @_;
+
+    return keys %{$self->installable_fields_by_name};
+}
+
+=item installable_package_type (NAME)
+
+Returns package type based on value of the Package-Type (or if absent,
+X-Package-Type) field.  If the field is omitted, the default value
+"deb" is used.
+
+If NAME is not an installable listed in the source packages
+F<debian/control> file, this method return C<undef>.
+
+=cut
+
+sub installable_package_type {
+    my ($self, $name) = @_;
+
+    my $type;
+
+    my $fields = $self->installable_fields_by_name->{$name};
+
+    $type = $fields->value('Package-Type') || $fields->value('XC-Package-Type')
+      if defined $fields;
+
+    $type ||= 'deb';
+
+    return lc $type;
+}
+
+=item installable_fields (PACKAGE)
+
+Returns the Deb822::Section object for the installable. Returns an
+empty object if the installable does not exist.
+
+=cut
+
+sub installable_fields {
+    my ($self, $package) = @_;
+
+    my $per_package;
+
+    $per_package = $self->installable_fields_by_name->{$package}
+      if length $package;
+
+    return ($per_package // Lintian::Deb822::Section->new);
+}
+
+=back
+
+=head1 AUTHOR
+
+Originally written by Russ Allbery <rra@debian.org> for Lintian.
+Amended by Felix Lechner <felix.lechner@lease-up.com> for Lintian.
+
+=head1 SEE ALSO
+
+lintian(1)
+
+=cut
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et