RFC: adding fd-passing to win32

Thu Aug 25 09:24:24 UTC 2022

I wrote:

> On Tue, 23 Aug 2022 15:35:06 -0300, Thiago Macieira wrote:
> 
>> Do note that's not a Unix feature, but a Linux one.  
> 
> IEEE 1003.1, otherwise known as POSIX. Looking at a copy of “Issue 6”
> (from 2001) ...

OK, on further examination, seems that is part of the STREAMS module,
which is not commonly supported these days. But according to this
<https://gist.github.com/kentonv/bc7592af98c68ba2738f4436920868dc>, the
BSDs do support SCM_RIGHTS for FD-passing, as does Linux. So that
covers all the nonproprietary POSIX-conforming OSes, as far as I’m
aware.