#!/usr/bin/perl -w

# $OpenBSD: check-libs-elf,v 1.3 2004/02/12 14:04:43 espie Exp $

#  Copyright (c) 2001 Marc Espie
# 
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions
#  are met:
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#  2. Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
#  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
#  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
#  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
#  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
#  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
#  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
#  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#  SUCH DAMAGE.
# 

# Check that all libraries are mentioned in lib depends.

use strict;

sub find_library
{
	my $libname = shift;
	my $LIBDIR=$ENV{'PKG_DBDIR'};
	my @list = `fgrep -l lib$libname.so $LIBDIR/*/+CONTENTS`;
	local $_;
	if (@list != 1) {
		return '???';
	}
	my $pkgname = $list[0];
	chomp $pkgname;
	open(FILE, $pkgname);
	while (<FILE>) {
		chomp;
		if (m/^\@comment subdir\=(\S+)/) {
			close FILE;
			return $1;
		}
	}
	$pkgname =~ s|$LIBDIR/(.*?)/\+CONTENTS|$1|;
	return $pkgname;
}

my $error = 0;

my %registered = map { s/.*\///; s/\.$//; s/(?:\.\d+){1,2}$//; ($_, 1); }
	split(/[ ,\n]+/, $ENV{'LIB_DEPENDS'});

open(my $libs, '<', shift) or die;
open(my $builds, '<', shift) or die;
while (<$builds>) {
	chomp;
	if (m/^.*\/lib(.*?)\.so((?:\.\d+)*)$/) {
		$registered{$1} = $2;
    	}
}

close($builds);

while (<$libs>) {
	my ($path, $name, $major, $minor);
	chomp;
	if (m/^lib(\S+)\s+(\d+)\s+(\d+)$/) {
		($name, $major, $minor) = ($1, $2, $3);
	} elsif (m/^(.*)\/lib(\S+)\s+(\d+)\s+(\d+)$/) {
		($path, $name, $major, $minor) = ($1, $2, $3, $4);
	} elsif (m/^lib(\S+)$/) {
		$name = $1;
	} elsif (m/^(.*)\/lib(\S+)$/) {
		($path, $name) = ($1, $2);
	} else {
		next;
	}
	unless (exists $registered{$name}) {
		print "lib-depends-check: no mention of $name (".find_library($name).")\n";
		$error = 1;
	}
}
close($libs);

exit($error);