if (defined $arg) {
    if (ref($arg) and UNIVERSAL::isa($arg, 'IO::Handle')) {
      $ioref = $arg;
    } elsif (tied($arg)) {
      my $class = ref($arg);
      no strict 'refs';
      $ioref = $arg if defined &{"${class}::TIEHANDLE"};
    }
    else {
      require IO::Handle;
      eval {
        no strict 'refs';
        $ioref = *{$arg}{IO} if defined *{$arg};
      };
      undef $@;
    }
  }
[download]

but to me it looks equally scary. undef $@ after eval? wtf?

At least, there's no strict 'refs'; inside the eval (but isn't it another wtf?)

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}