A bit of code of yours would be handy to know what you are really doing, to reproduce the problem, and to hint you at solutions. See How (Not) To Ask A Question.

As for PAM, I agree with Theo de Raadt's statement:

I will try to be as nice as anyone has ever seen me be:
PAM is completely and utterly broken and cannot be fixed.

--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}

In reply to Re: Authentication token manipulation error in Authen-PAM by shmem
in thread Authentication token manipulation error in Authen-PAM by sajidk

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