FreeBSD tar errors on valid empty tar.gz
Andrew Reilly
andrew-freebsd at areilly.bpc-users.org
Thu Jan 10 21:51:28 PST 2008
On Fri, 11 Jan 2008 01:08:59 +0100
Kris Kennaway <kris at FreeBSD.org> wrote:
> Steven Hartland wrote:
> > A totally empty file is not valid try the following test:-
> >> touch empty
> >> tar cvzf test.tar.gz --files-from empty
> >> tar tvzf test.tar.gz tar: Unrecognized archive format: Inappropriate
> >> file type or format
> >> tar --version
> >> bsdtar 1.2.53 - libarchive 1.2.53
> >> gtar tvzf test.tar.gz
> >> gtar --version
> >> tar (GNU tar) 1.15.1
> >
> > Tested on: FreeBSD 6.2-RELEASE-p9
>
> OK, so it's already fixed?
Seems to work OK on my 7-STABLE system.
Interestingly, if I follow Steven Hartland's recipe (using
--files-from empty), I get a 45-byte .tar.gz file that gzcat's
to 10240 zero bytes, but if I leave the "z" off the tar commands, I
get an uncompressed file of 1024 zero bytes. Should that happen?
In both cases, tar tvf{,z} doesn't whinge about unrecognized
formats.
Cheers,
--
Andrew
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