Change mini_inetd() to optionally return the connected socket
Change mini_inetd() to optionally return the connected socket

This is to support platforms where a socket is not an FD and can't
reliably be bound to the stdin and stdout file descriptors.

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal