[Bug 4532] New: dpkg fails to populate dpkg/info/package.list file

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=4532

           Summary: dpkg fails to populate dpkg/info/package.list file
           Product: Busybox
           Version: 1.19.x
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
        AssignedTo: unassigned at busybox.net
        ReportedBy: damion.desoto at faiveleytransport.com
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


For any deb packages that do not contain a file named conffiles inside the
control.tar.gz archive, the busybox dpkg applet fails to populate the
/var/lib/dpkg/info/package.list file with the files provided by the new
package.
This means when the package is removed or purged, all the original files remain
in place on the filesystem, but the dpkg database is updated to indicate
they've been removed.

The root of this problem seems to be the fact that the get_header_tar()
function in archival/libunarchive/get_header_tar.c populates the
"archive_handle->passed" list only if an archive_handle->accept or
archive_handle->reject list exists.
For deb packages that contain a conffiles file, unpack_package() in
archival/dpkg.c successfully creates the archive_handle->accept list.
For deb packages without conffiles, archive_handle->accept is not required, and
is never created, therefore get_header_tar() never creates the
archive_handle->passed list.
The archive_handle->passed list is later used to populate the package.list
file.


If anyone who knows what they're doing can make a fix, it'd be appreciated,
otherwise I'll just mash something together and submit a patch on Monday.

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