OTP feature for /bin/login

[Guylhem]

On Sat, May 5, 2012 at 7:40 AM, Bernd Petrovitsch
<bernd at petrovitsch.priv.at> wrote:
> And that in patches which show all the changes so that others can easily
> review them.

I'm not sure I understand. It's a full reimplementation, with some #if to
remain compatible and manage the same use cases.

I kept a glibc 2.4 workaround, only with a little more explanation
because I did not immediately understood why that was here.

Simply remove the "#define ENABLE_FEATURE_LOGINOTP 1" at the top
(which should be a config option) to provide the same functionality as
the former correct_password.c