named.conf cannot be changed

[Joseph S D Yao]

On Thu, Dec 07, 2006 at 05:10:18PM -0500, Robert Spangler wrote:
> On Wed December 6 2006 19:11, Joseph S D Yao wrote:
> 
> >  Although a good idea sometimes, in this case disastrous.  Apparently the
> >  file is copied from one location to another in this distribution.
> >
> >  Have you ever tried copying a file over itself?
> 
> No I have not, but you have sparked an interest in finding out what happens.  
> I plan on fiddling around with this some.  Thnx.


file1
cp file1 file1
  open file1 for reading
  open file1 for writing from byte 0
  read file1 ... hey, there's no data here
  close file1 read
  close file1 write
one nice zero-length file

Depending on the utility, this may vary ... some may read before opening
to write, but that's an odd way to do things.  if they do, their SECOND
read would return end-of-file.

-- 
Joe Yao
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