winbind build/link question

[Roylance, Stephen D.]

> The fill_pwent function is static in winbind_nss.c  You are probably
> trying to call it directly from your winbind_aix.c which won't work.
> 
> Can winbind_aix.c be modelled like winbind_solaris.c?  That is, wrapper
> functions abstract out the vendor specific nss stuff which then call the
> _nss_winbind_* functions.
> 
> 
> Tim.

I am by no means an expert.  I don't understand the nss api at all, and I only
understand the AIX API from studying it over the past two weeks.

Nss and AIX loadable auth modules seem very different.  In AIX the module is
responsible for allocating the memory for the result structures.  The return
value is a pointer to the result struct and failure is communicated by returning
NULL.  I'm not sure if it's possible to differentiate between failure because an
object wasn't found and some other kind of failure.  It appears to be less work
to go from AIX->winbind rather than AIX->nss->winbind.  I can probably make it
cleaner/more efficient if I rewrite what fill_pwent/fill_grent do for AIX,
because winbind_aix has to allocate the memory itself anyway.

-Steve