> Package: apt-listbugs
> Version: 0.0.48
> Severity: normal
>
> Recently I started getting the error messages during my apt-get call.
> I tracked them down to the following call in apt-listbugs:
>
> changelog = `/usr/bin/dpkg-deb --fsys-tarfile #{pkgpath} | tar -x -O
> ./usr/share/doc/#{field["package"]}/#{chfile} -f - 2> /dev/null | gzip -d 2>
> /dev/null`
>
> The tar program is called in the following way:
>
> $ tar -x -O dummy -f -
>
> This works fine as long as the TAPE environment variable is not set,
> however:
>
> $ TAPE=/dev/nst0 tar -x -O dummy -f -
> tar: /dev/nst0: Cannot open: No such file or directory
> tar: Error is not recoverable: exiting now
>
> This is the reason for the error message shown in the subject line.
>
> This problem can simply be solved by changing the order of the parameters:
>
> $ TAPE=/dev/nst0 tar -x -f - -O dummy
> ... Waiting for input
>
> I assume tar stops parsing the flags after the first pathname
> parameter (dummy in the example) like it should according to the
> single unix specification, so it nevers sees the "-f -" option to read
> from stdin. It just reads from stdin if the TAPE variable is unset
> which should never be assumed by a software.
Isn't it the bug of tar?
>From
~$ info tar:
You must specify the source archives using `--file=ARCHIVE-NAME'
(`-f ARCHIVE-NAME') (*note file::). If you do not specify the target
archive, `tar' uses the value of the environment variable `TAPE', or,
if this has not been set, the default archive name.
....
If you do not name the archive, `tar' uses the value of the
environment variable `TAPE' as the file name for the archive. If that
is not available, `tar' uses a default, compiled-in archive name,
usually that for tape unit zero (ie. `/dev/tu00'). `tar' always needs
an archive name.
Thanks
> Torsten
>
> -- System Information:
> Debian Release: 3.1
> APT prefers unstable
> APT policy: (500, 'unstable')
> Architecture: i386 (i686)
> Shell: /bin/sh linked to /bin/dash
> Kernel: Linux 2.6.10
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
>
> Versions of packages apt-listbugs depends on:
> ii apt 0.5.28.6 Advanced front-end for dpkg
> ii libdpkg-ruby1.8 0.3.1 modules/classes for dpkg on ruby
> 1
> ii libintl-gettext-ruby1.8 0.11-5 Gettext wrapper for Ruby 1.8
> ii libruby1.8 [libzlib-ruby1.8] 1.8.2-7 Libraries necessary to run Ruby
> 1.
> ii libxml-parser-ruby1.8 0.6.8-1 Interface of expat for the
> scripti
> ii ruby 1.8.2-1 An interpreter of
> object-oriented
> ii tar 1.15.1-1 GNU tar
>
> -- no debconf information
>
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