[openssl-users] Error in untarring FIPS 2.0.9 file

[Christopher Vance]

In ancient times tar used a blocksize of 10240 bytes (or 20 records of 512
bytes), particularly for tape. I'm pretty sure I sometimes had to zero pad
out to a multiple of 10240 bytes, even when there was no tape involved.

On Wed, Jan 14, 2015 at 12:16 AM, Matt Caswell <matt at openssl.org> wrote:

>
>
> On 13/01/15 00:51, jonetsu at teksavvy.com wrote:
> > Hello,
> >
> >   There is an untarring error with file.  Here are the details.
> >
> > File size:
> >
> > 1425056 Jan  4 18:50 openssl-fips-2.0.9.tar.gz
> >
> > md5sum test OK with:
> >
> > c8256051d7a76471c6ad4fb771404e60
> >
> > The error:
> >
> > % tar xvfz openssl-fips-2.0.9.tar.gz
> >
> > [...]
> > openssl-fips-2.0.9/util/ssleay.num
> > openssl-fips-2.0.9/util/tab_num.pl
> > openssl-fips-2.0.9/util/x86asm.sh
> > tar: A lone zero block at 14880
> >
> > Is there something wrong with the archive ?
>
> No.
>
> "Recent versions of GNU tar expect a pair of zero blocks at the end of
> the file by default. If GNU tar encounters a lone zero block, even at
> the end, this is interpreted by GNU tar as a bad archive."
> (from http://www-01.ibm.com/support/docview.wss?uid=swg21270445)
>
> if you use:
>
> tar ixvfz openssl-fips-2.0.9.tar.gz
>
> the problem goes away.
>
> Matt
>
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-- 
Christopher Vance
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