C API for ACLs

[raf]

Hi,

Does anyone know how to get at macOS's ACLs from C?
I just need to access them in text form. I'm using
the "POSIX" ACL API, and it compiles and runs, but
it doesn't find anything. The ACL entries that I can
create with chmod +a, and view with ls -e, don't
show up because they're not "POSIX" ACL compatible
(or some similar sensible reason). Searching the net
has only turned up the "POSIX" ACL API so far.

cheers,
raf