Re: tlug: cpio WARNING

[Scott Stone <sstone@example.com>]

On Mon, 26 Oct 1998, Scott Perlman wrote:

> Please, do NOT exit(0)
> 
> Ayone depending on cpio -c for a backup mechanism will happily use the
> scripts they have gotten debugged and working forever, and as cpio
> succeeds will not know things went wrong.
> 
> Give an exit code that makes more sense.
> 
> (also make sure tyou print to STDERR not STDOUT)

Good points all, thanks.  exit(1) is probably better.

> 
> -Scott
> 
> Scott Stone did state upon Mon, Oct 26, 1998 at 12:58:46PM +0900:
> > 
> > do NOT use cpio with the '-c' flag (-c == use portable ASCII archive
> > format) on a glibc-based system.  There's some libc-internal data
> > structure whose size has changed between libc5 and glibc.  Any archive you
> > create on a glibc system with 'cpio -c' will be completely unreadable.
> > libc5 systems are not affected, and glibc systems can read 'cpio -c'
> > archives created on libc5 systems.
> > 
> > Despite the fact that this bug has been Reported to the right people,
> > there is no patch.  Use afio instead of cpio.
> > 
> > I'm patching TurboLinux's cpio (in 3.0) to say, "use afio instead" and
> > exit(0) when the -c flag is used.  Data loss is not fun :)
> > 
> > This bug is easily verifiable by simply creating a cpio archive with -c
> > and then trying to extract it somewhere else.
> > 
> > Affected systems are Redhat 5.0, 5.1, TurboLinux 2.0, Debian 2.0, and
> > anything else that's glibc based and has a glibc-built cpio binary.
> > 
> > --------------------------------------------------
> > Scott M. Stone <sstone@example.com, sstone@example.com>
> >                <sstone@example.com>
> > Head of TurboLinux Development/Systems Administrator
> > Pacific HiTech, Inc (USA) / Pacific HiTech, KK (Japan)
> > http://www.pht.com		http://armadillo.pht.co.jp
> > http://www.pht.co.jp	        http://www.turbolinux.com
> > 
> > 
> > ---------------------------------------------------------------
> > Next Nomikai: 20 November, 19:30 Tengu TokyoEkiMae 03-3275-3691
> > Next Technical Meeting: January, 1999 (details TBA)
> > ---------------------------------------------------------------
> > Sponsor: PHT, makers of TurboLinux http://www.pht.co.jp
> >>>end
> 
> -- 
> "Then I was inspired,			| Scott Perlman
>  Now I'm sad and tired,			| perlman@example.com
>  After all I've tried for three years,  
>  Seems like ninety." JC-JCS-ALW 
> ---------------------------------------------------------------
> Next Nomikai: 20 November, 19:30 Tengu TokyoEkiMae 03-3275-3691
> Next Technical Meeting: January, 1999 (details TBA)
> ---------------------------------------------------------------
> Sponsor: PHT, makers of TurboLinux http://www.pht.co.jp
> 

--------------------------------------------------
Scott M. Stone <sstone@example.com, sstone@example.com>
               <sstone@example.com>
Head of TurboLinux Development/Systems Administrator
Pacific HiTech, Inc (USA) / Pacific HiTech, KK (Japan)
http://www.pht.com		http://armadillo.pht.co.jp
http://www.pht.co.jp	        http://www.turbolinux.com


---------------------------------------------------------------
Next Nomikai: 20 November, 19:30 Tengu TokyoEkiMae 03-3275-3691
Next Technical Meeting: January, 1999 (details TBA)
---------------------------------------------------------------
Sponsor: PHT, makers of TurboLinux http://www.pht.co.jp