From 92ff693eb1a967643c650366abe032aee5164945 Mon Sep 17 00:00:00 2001
From: Neal Norwitz <nnorwitz@gmail.com>
Date: Mon, 3 Oct 2005 05:13:46 +0000
Subject: Fix SF bug #991735, os.access reports true for read-only directories.
  Will backport

---
 Doc/lib/libos.tex | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Doc/lib/libos.tex b/Doc/lib/libos.tex
index 2fbecfa..3662a46 100644
--- a/Doc/lib/libos.tex
+++ b/Doc/lib/libos.tex
@@ -692,6 +692,11 @@ Availability: Macintosh, \UNIX, Windows.
 open a file before actually doing so using \function{open()} creates a 
 security hole, because the user might exploit the short time interval 
 between checking and opening the file to manipulate it.}
+
+\note{I/O operations may fail even when \function{access()}
+indicates that they would succeed, particularly for operations
+on network filesystems which may have permissions semantics
+beyond the usual \POSIX{} permission-bit model.}
 \end{funcdesc}
 
 \begin{datadesc}{F_OK}
-- 
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