Re: bug: mount on an open directory succeeds

From: Werner Almesberger (almesber@lrc.epfl.ch)
Date: Mon Mar 06 2000 - 08:33:44 EST


Alexander Viro wrote:
> Oh? Please, try to do the following:
[...]

Sure, but this is a completely different scenario ! If you change the
directory (chdir), you can obviously get a different result.

Again, POSIX ANSI/IEEE Std 1003.1 (2nd ed., 1996-07-12), section 2.3.6,
page 32, 2nd paragraph:

"The special filename, dot, refers to the directory specified by its
 predecessor."

In the cd /foo; mount /foo; stat bar; stat ./bar case, both stats
should return the same result, because the refer to the same directory.
Note that I'm not advocating that they should also equal stat /foo/bar
(which would be more like your example).

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, ICA, EPFL, CH       werner.almesberger@ica.epfl.ch /
/_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/

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