Re: xz 5.0.3 (i386/NetBSD 5.0) strange "Unexpected end of input"

[David Holland <dholland-pkgtech%netbsd.org@localhost>]

On Wed, Jun 27, 2012 at 12:24:07PM +0200, Joerg Sonnenberger wrote:
 > >  > > I noticed that I was seeing
 > >  > >       unxz: (stdin): Unexpected end of input
 > >  > > occasionally - I was running pkg_info from a context where it was
 > >  > > examining a whole directory of binpkg files, and this gave no idea
 > >  > > which file was (apparently) corrupt.
 > >  > 
 > >  > If I may guess, you are hitting no corruption, just an optimisation.
 > >  > pkg_info just reads enough from the package to get the meta data.
 > >  > When libarchive is *not* built against liblzma, it calls unxz as
 > >  > external filter, pushing data as needed. Depending on how fast the
 > >  > extraction happens, unxz hits the closed stdout or closed stdin first.
 > >  > I'm not aware of a clean way to signal this.
 > > 
 > > Um? Close its stdin, wait for it, then close its stdout? Or signal it
 > > and not close either?
 > 
 > Closing stdin is what leads to the message. You really don't want to
 > extract a 100MB binary package, if all you are interested in is the
 > first few KB.

Ok then, what about signaling it?

-- 
David A. Holland
dholland%netbsd.org@localhost