Messages in this thread | | | Date | Wed, 19 Sep 2007 19:06:04 +0100 | From | Alan Cox <> | Subject | Re: follow-up: discrepancy with POSIX |
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On Wed, 19 Sep 2007 10:46:54 -0700 Ulrich Drepper <drepper@redhat.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Andi Kleen wrote: > >> But the spec calls for a "null address" to be used and that's in my > >> understanding something different from using AF_UNSPEC. > > > > memset(&sockaddr, 0, sizeof(sockaddr)) should give you AF_UNSPEC > > But the spec calls for <quote>null address for the protocol</quote>. > > That means the family for the null address is the same as the family of > the socket.
Which is a valid address in some protocols. If I remember rightly then appletalk net 0 node 0 port 0 is valid although I'd want to look in the book to check that - ditto AF_ECONET although I doubt anyone cares too much 8)
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