Re: follow-up: discrepancy with POSIX

Andi Kleen
2007-09-19T18:30:20Z

On Wed, Sep 19, 2007 at 11:02:00AM -0700, Ulrich Drepper wrote:
> > on UDP/RAW and it's certainly possible to connect() to that.
>
> Where do you get this from? And where is this implemented? I don't

Sorry it's actually loopback, not broadcast as implemented in Linux.
In Linux it's implemented in ip_route_output_slow(). Essentially
converted to 127.0.0.1

I think it's traditional BSD behaviour but couldn't find it on
a quick look in FreeBSD source (but haven't looked very intensively)

Admittedly port 0 is somewhat dodgy for UDP too, but at least in RAW
context it might be valid.

-Andi