Relevant BUGIDs:

Relevant BUGIDs:

Purpose of commit: bugfix

Commit summary:
---------------
2008-12-02  Olivier Fourdan <ofourdan@redhat.com>

        * modules/pam_filter/pam_filter.c (master): Use /dev/ptmx
        instead of the old BSD pseudoterminal API.
        (set_filter): Call grantpt(), unlockpt() and ptsname(). Do not
        close pseudoterminal handle in filter child.
        * modules/pam_filter/upperLOWER/upperLOWER.c (main): Use
        regular read() instead of pam_modutil_read() to allow for
        short reads.