the op may have seen this: http://lwn.net/Articles/411845/On Fri Nov 5 07:36:42 EDT 2010, rogpeppe@gmail.com wrote:
> see srv(3)
> http://plan9.bell-labs.com/magic/man2html/3/srv
>
> On 5 November 2010 10:29, Kirill A. Shutemov <kirill@shutemov.name> wrote:
> > One of the ugliest interface in Unix is passing a file descriptor between
> > processes [1]. Does Plan9 provide any mechanism for it?
> >
> > [1] http://book.chinaunix.net/special/ebook/addisonWesley/APUE2/0201433079/ch17lev1sec4.html
—which i found hard to read because the author's changing
definition of "unix".
- erik