Re: Do we break POSIX?

[Jakob Oestergaard <jakob@unthought.net>]

On Mon, Nov 10, 2003 at 09:02:05AM -0500, Stephen Smalley wrote:
...
> > 
> > Does anyone know immediately if this is so and if we are indeed
> > breaking POSIX? If nobody can answer that, I will find out myself, as
> > I've promised him to check.
> 
> NFS can yield the same behavior.  If you are holding a file open on the
> client and writing to it, and someone changes the ownership of the file
> on the server, then subsequent write() requests will fail with
> Permission denied.  I just tested with a Linux client and server to
> verify, and this is what happens.

Yep.

But NFS doesn't claim to have POSIX semantics.

I doubt there are any real-world programs that would treat a write
returning -1 with errno set to an 'unknown error', as a successful
write.

(if such a program should exist, the author will be most thoroughly
 dealt with when I take over  ;)

So all in all I think that you are both correct, but the (my) conclusion
is that it wouldn't matter if write returned EACCESS.

 / jakob


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