Tom Lynn added the comment:
See attached bad.tar.
$ less bad.tar | cat
drwxr-xr-x 0/0 0 2012-09-05 20:04 foo/
-rw-rw-r-- uname/gname 0 2012-09-05 20:04 foo/a
$ python -c 'import tarfile; print(tarfile.open("bad.tar").getnames())'
['foo']
$ python -c 'import tarfile, patch; patch.patch_tarfile(); print
(tarfile.open("bad.tar").getnames())'
['foo', 'foo/a']
I'm only allowed to attach one file via the tracker web UI, so patch.py will
follow.
Creation code for bad.tar, largely for my benefit:
import java.io.FileOutputStream;
import java.io.IOException;
import org.codehaus.plexus.archiver.tar.TarOutputStream;
import org.codehaus.plexus.archiver.tar.TarEntry;
class TarTest {
public static void main(String[] args) throws IOException {
FileOutputStream fos = new FileOutputStream("bad.tar");
TarOutputStream tos = new TarOutputStream(fos);
TarEntry entry = new TarEntry("foo/");
entry.setMode(16877); // 0o40755
entry.setUserId(0);
entry.setGroupId(0);
entry.setUserName("");
entry.setGroupName("");
tos.putNextEntry(entry);
TarEntry entry2 = new TarEntry("foo/a");
entry2.setMode(33204); // 0o100664
entry2.setUserId(-1); // XXX: dodgy
entry2.setGroupId(-1); // XXX: dodgy
entry2.setUserName("uname");
entry2.setGroupName("gname");
tos.putNextEntry(entry2);
tos.close();
fos.close();
}
}
----------
Added file: http://bugs.python.org/file27129/bad.tar
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<http://bugs.python.org/issue15858>
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