IFS file authority using "C" open API

In rewriting an application I am moving from writing to a temporary
native file and CPYTOSTMF to writing directly to the IFS.

As part of the security the involved IFS tree is secured using an
Authorization List (AUTL). When a PC creates anything in this tree all
the authority entries are copied from the parent folder including the
AUTL. However, when the RPGLE program creates a file only the PGP is
copied to the new file. I understand that this is part of the UNIX way
and a result of setting the authority bits during the open with the
create bit set.

What I haven't been able to find is a way to automatically or at least
semi-automatically (another step but using reference) copy the rest of
the entries. I don't want to have to store the AUTL and have the
program(s) do a CHGAUT every time it creates a file. Having the program
perform a step that says "copy the authority from the parent folder to
this file" is OK as it can be using appropriate references.

What have I been unable to find in InfoCenter and the Midrange archives?

Thanks.

Roger Vicker, CCP