Add sparse file support to cpio [PSARC/2008/727 Self Review]

[Joerg Schilling]

James Carlson <james.d.carlson at sun.com> wrote:

> Don Cragun writes:
> > >If there are, then should we be deliberately incompatible?
> > 
> > The star and the recent AT&T pax archivers encode sparse files using
> > ustar/pax format archives.  The project team has not seen any other
> > attempt to encode sparse files using cpio format.
>
> That's the part I wanted to hear: that the project team had looked for
> other implementations and found none.  I'm satisfied with that.

Other implementation use data_offset/data_size pairs for tar archive extension
since a long time. It makes sense to try to be as similar as possible.

Jörg

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