From: Ulrich Drepper <drepper@gmail.com>
Date: Sat, 3 Dec 2011 02:13:10 +0000 (-0500)
Subject: Remove aliasing problems in NIS code
X-Git-Tag: upstream/2.20~4841
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3a9654961929c2968c898d98ddfd3d840360080d;p=platform%2Fupstream%2Flinaro-glibc.git

Remove aliasing problems in NIS code
---

diff --git a/ChangeLog b/ChangeLog
index a0ba6b0..6763ac1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2011-12-02  Ulrich Drepper  <drepper@gmail.com>
 
+	* nis/nis_findserv.c (__nis_findfastest_with_timeout): Avoid aliasing
+	problem.
+
 	* nscd/aicache.c (addhstaiX): Avoid unused variable warning.
 
 2011-11-29  Joseph Myers  <joseph@codesourcery.com>
diff --git a/nis/nis_findserv.c b/nis/nis_findserv.c
index b1a9aa7..b02c63b 100644
--- a/nis/nis_findserv.c
+++ b/nis/nis_findserv.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2000, 2001, 2010 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000, 2001, 2010, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
 
@@ -175,7 +175,9 @@ __nis_findfastest_with_timeout (dir_binding *bind,
 			(xdrproc_t) xdr_void, (caddr_t) 0,
 			*timeout);
     if (RPC_SUCCESS == rc) {
-      fastest = *((u_int32_t *) (cu->cu_inbuf)) - xid_seed;
+      u_int32_t val;
+      memcpy (&val, cu->cu_inbuf, sizeof (u_int32_t));
+      fastest = val - xid_seed;
       if (fastest < pings_count) {
 	bind->server_used = pings[fastest].server_nr;
 	bind->current_ep = pings[fastest].server_ep;