[5.4] mode bits changed by close(2)

[Daniel O'Connor]

On Saturday 28 January 2006 07:31, dlm-fb at weaselfish.com wrote:
> A demonstration program is included below.  I've verified this on a
> fairly recently 5.4 client system, with both Linux and FBSD 5.4 NFS
> servers.  I don't have 6 or -current available to me at the moment.
> There's the obvious work-around of doing a chmod() after the close,
> but that has security implications.

I tested it on a 6.0 server with a -current client..
[inchoate 8:55] /remotehome/darius >~/test ./foo
Initial permissions: 0644
After write: 04711
After close: 0711

:(

I also get the same result with a loopback NFS mount on -current.

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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