Relevant BUGIDs:

Relevant BUGIDs:

Purpose of commit: new feature

Commit summary:
---------------
2006-01-12  Steve Grubb  <sgrubb@redhat.com>

        * configure.in: Add check for audit library.
        * libpam/Makefile.am (libpam_la_LDFLAGS): Add LIBAUDIT.
        (libpam_la_SOURCES): Add pam_audit.c.
        * libpam/pam_account.c (pam_acct_mgmt): Add _pam_auditlog() call.
        * libpam/pam_auth.c (pam_authenticate), (pam_setcred): Likewise.
        * libpam/pam_password.c (pam_chauthtok):  Likewise.
        * libpam/pam_session.c (pam_open_session),
        (pam_close_session): Likewise.
        * libpam/pam_private.h: Add audit_state member to pam_handle,
        declare _pam_auditlog and _pam_audit_end.
        * libpam/pam_start.c (pam_start): Initialize audit_state.
        * libpam/pam_audit.c: New file with _pam_auditlog and _pam_audit_end
        implementation.
        * libpam/pam_end.c (pam_end): Add _pam_audit_end() call.
        * NEWS: Note about added auditing.