#!/usr/bin/perl -w

use strict;
use warnings;

use File::stat;
use POSIX qw(strftime);

sub testtime {
    my $st = stat("/usr/bin/checktime") || stat("./checktime");

    my $ctime = time();

    if ($ctime < $st->atime) {
	my $system_time_str = strftime "%F %T", localtime $ctime;
	my $pkg_time_str = strftime "%F %T", localtime $st->atime;
	warn "detected wrong system time $system_time_str, older than installer ($pkg_time_str)\n";
	my $tstr = localtime $st->atime;
	# correct system time to avoid errors, i.e gpg fails
	system ("date -s '$tstr'"); 
    }
}

testtime();

exit (0);