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23.0.50; Possible bug with bzip2 compressed tar files?

From: Peter Dyballa
Subject: 23.0.50; Possible bug with bzip2 compressed tar files?
Date: Sat, 12 Jan 2008 15:12:54 +0100


There seems to be a problem with bzip2 compressed tar files. It does not happen with every such file. It does not depend from the file size, or the block size used by bzip, nor the file name extension, .tar.bz2 or .tbz2 or .tbz. One stable element is that the files all come from one source: The Omni Group! I can't be more specific, because the files are fetched by the web browser OmniWeb from some site and saved locally inside a UNIX file system. The saved archives are almost 15 MB in size – which I probably can't send by eMail, FTP would be an option. I'll also contact the Omni Group.

Using tar (versions 1.14 +CVE-2006-0300 +CVE-2006-6097 or 1.16.1, bzip2 Version 1.0.4, 20-Dec-2006) on the command line, I can list the archive's contents and also extract files:

        tar: Record size = 8 blocks
        drwxr-xr-x root/admin        0 2008-01-10 22:51:47 OmniWeb.app/
drwxr-xr-x root/admin 0 2008-01-10 22:52:24 OmniWeb.app/ Contents/ drwxr-xr-x root/admin 0 2008-01-10 22:52:24 OmniWeb.app/ Contents/Frameworks/ drwxr-xr-x root/admin 0 2008-01-10 22:52:33 OmniWeb.app/ Contents/Frameworks/JavaScriptCore.framework/ lrwxrwxr-x root/wheel 0 2008-01-10 22:51:59 OmniWeb.app/ Contents/Frameworks/JavaScriptCore.framework/JavaScriptCore -> Versions/Current/JavaScriptCore lrwxrwxr-x root/wheel 0 2008-01-10 22:51:59 OmniWeb.app/ Contents/Frameworks/JavaScriptCore.framework/Resources -> Versions/ Current/Resources

The error happens also in GNU Emacs 23.0.60 and in GNU Emacs 22.1.50.

In GNU Emacs (powerpc-apple-darwin8.11.0, X toolkit, Xaw3d scroll bars)
 of 2008-01-12 on Latsche.local
Windowing system distributor `The XFree86 Project, Inc', version 11.0.40400000 configured using `configure '--with-dbus' '--without-sound' '-- without-pop' '--with-xpm' '--with-jpeg' '--with-tiff' '--with-gif' '-- with-png' '--with-x-toolkit=athena' '--enable-locallisppath=/Library/ Application Support/Emacs/calendar22:/Library/Application Support/ Emacs/caml:/Library/Application Support/Emacs:/sw/share/emacs21/site- lisp/elib' 'PKG_CONFIG_PATH=/sw/lib/freetype219/lib/pkgconfig:/sw/lib/ fontconfig2/lib/pkgconfig:/usr/X11R6/lib/pkgconfig:/sw/lib/pkgconfig:/ sw/lib/system-openssl/lib/pkgconfig:/sw/share/pkgconfig:/usr/lib/ pkgconfig:/usr/local/lib/pkgconfig:/usr/local/clamXav/lib/pkgconfig' 'CFLAGS=-Wno-pointer-sign -bind_at_load -pipe -fPIC -mcpu=7450 - mtune=7450 -fast -mpim-altivec -ftree-vectorize -foptimize-register- move -freorder-blocks -freorder-blocks-and-partition -fthread-jumps - fpeephole -fno-crossjumping' 'CPPFLAGS=-no-cpp-precomp -I/usr/include/ openssl -I/sw/include/pango-1.0 -I/sw/lib/freetype219/include -I/sw/ lib/freetype219/include/freetype2 -I/sw/lib/fontconfig2/include -I/sw/ include -I/usr/local/include -idirafter /usr/X11R6/include' 'LDFLAGS=- dead_strip -multiply_defined suppress -L/sw/lib/ncurses -L/sw/lib/ freetype219/lib -L/sw/lib/fontconfig2/lib -L/sw/lib -L/usr/local/lib - L/usr/X11R6/lib''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: de_DE.UTF-8
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: de_DE.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  show-paren-mode: t
  display-time-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  view-mode: t

Recent input:
<down-mouse-1> <mouse-1> C-x d / V o <tab> H a <tab>
_ n e <tab> <return> <escape> < s <down> <down> <down>
<down> <down> <down> <down> v y <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<help-menu> <send-emacs-bug-report>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Loading time...done
Loading paren...done
Mark set
File OmniWeb-5.7-r97021-Alpha.tbz2 is large (14MB), really open? (y or n)
View mode: type C-h for help, h for commands, q to quit.

Not using View mode because the major mode is special



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