--- tarfile.py	2008-06-04 18:11:15.198434000 -0700
+++ tarfile_patched.py	2008-06-04 18:16:02.989079000 -0700
@@ -2501,10 +2501,10 @@
         except ImportError:
             from StringIO import StringIO
         import calendar
-        zinfo.name = zinfo.filename
-        zinfo.size = zinfo.file_size
-        zinfo.mtime = calendar.timegm(zinfo.date_time)
-        self.tarfile.addfile(zinfo, StringIO(bytes))
+        tinfo = TarInfo(zinfo.filename)
+        tinfo.size = len(bytes)
+        tinfo.mtime = calendar.timegm(zinfo.date_time)
+        self.tarfile.addfile(tinfo, StringIO(bytes))
     def close(self):
         self.tarfile.close()
 #class TarFileCompat