I am pretty new to programming. I do my best to live by the docs, but sometimes strange things get me. I have tried several variations of this code. It logs it correctly (as I expect it to), but it also sets $! to 'Inappropriate I/O control operation.'

Oh, teachers of perl wisdom, where have I failed my poor program?

logger('I would like to log an arbitrary string, please.');
sub logger{
    my $entry = shift(@_);
    my $logpath = 'C:\\Logs\\MailServer\\';
    use vars qw($sec $min $hour $mday $mon $year $wday $yday $isdst);
    ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(
+time);
    my $datestamp = (1900+$year).'_'.(1+$mon).'_'.$mday;
    my $timestamp = '~<'.$hour.':'.$min.':'.$sec.'>~ ';
    my $logname = $logpath.$datestamp.'.log';
    if ($entry){
        open my $LOG, ">>", "$logname" or die $!;
        print $LOG "$timestamp$entry\n";
        say $timestamp.$entry;
        close($LOG);
    }
}

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In reply to Lammentful logs fouled by failing filehandling by Anonymous Monk

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