named.conf cannot be changed
Joseph S D Yao
jsdy at center.osis.gov
Thu Dec 7 22:34:02 UTC 2006
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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