From: Andreas Jaeger <aj@suse.de>
Date: Tue, 5 Jun 2001 13:38:39 +0000 (+0000)
Subject: (mangle_tree): Ensure array indices are within bounds when lag > 0.
X-Git-Tag: cvs/pre-lgplv2_1~123
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=673c34e01c706930c97c922b5ad97febfb6dbf1b;p=thirdparty%2Fglibc.git

(mangle_tree): Ensure array indices are within bounds when lag > 0.
---

diff --git a/misc/tst-tsearch.c b/misc/tst-tsearch.c
index 06f743bc053..bdefdebba71 100644
--- a/misc/tst-tsearch.c
+++ b/misc/tst-tsearch.c
@@ -1,5 +1,5 @@
 /* Test program for tsearch et al.
-   Copyright (C) 1997, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2000, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -171,8 +171,9 @@ mangle_tree (enum order how, enum action what, void **root, int lag)
 	  if (i >= lag)
 	    k = y[i - lag];
 	  else
-	    k = y[SIZE - i - 1 + lag];
-	  j = y[i];
+	    /* Ensure that the array index is within bounds.  */
+	    k = y[(SIZE - i - 1 + lag) % SIZE];
+	  j = y[i % SIZE];
 	  break;
 
 	case ascending: