Merged revisions 77989 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r77989 | antoine.pitrou | 2010-02-05 18:05:54 +0100 (ven., 05 févr. 2010) | 6 lines

  Issue #5677: Explicitly forbid write operations on read-only file objects,
  and read operations on write-only file objects.  On Windows, the system C
  library would return a bogus result; on Solaris, it was possible to crash
  the interpreter.  Patch by Stefan Krah.
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diff --git a/Include/fileobject.h b/Include/fileobject.h
index 56cf40a..96c1e57 100644
--- a/Include/fileobject.h
+++ b/Include/fileobject.h
@@ -28,6 +28,8 @@
 	PyObject *weakreflist; /* List of weak references */
 	int unlocked_count;	/* Num. currently running sections of code
 				   using f_fp with the GIL released. */
+	int readable;
+	int writable;
 } PyFileObject;
 
 PyAPI_DATA(PyTypeObject) PyFile_Type;