I'm not quite sure what you mean here. passwd, adduser, chfn and so on work in as much as they update /etc/passwd (they all use the libshadow functions for this even if you don't compile it as a shared library), but NetBSD getpwnam will only use the db format files. What I think we need is to modify libshadow to be able to cope with these and make the pw_mkdb call once they've added information. It looks like there's some sort of basic infrastructure for doing this, so I don't imagine that it'd be too difficult.
see libutil; pw_init(3) & friends.
