The following patch seems to work for restoring user id/group id (ownership) data to files on linux.  As far as I know it is only possible to use uid/gid to restore file ownership using python.  Change filenames or cut and paste code as appropriate.

This makes linux full or partial file system recovery using sync command workable.

- Jim

--- s3cmd.orig 2012-06-05 15:44:52.000000000 -0400
+++ s3cmd 2012-06-05 14:28:09.000000000 -0400
@@ -755,6 +755,8 @@
                         atime = attrs.has_key('atime') and int(attrs['atime']) or int(time.time())
                         os.utime(dst_file, (atime, mtime))
                     ## FIXME: uid/gid / uname/gname handling comes here! TODO
+                    if attrs.has_key('uid') and attrs.has_key('gid'):
+                        os.chown(dst_file, int(attrs['uid']), int(attrs['gid']))
             except OSError, e:
                 try: dst_stream.close()
                 except: pass

Jim Wilson, IT Manager
Kelco Industries
PO Box 160
Milbridge, ME 04658