[patch] texinfo-4.8: avoid obvious out-of-bounds accesses.

html.c.diff (text/plain), 1.20 KB, created by Alexey Dobriyan on 2006-07-18 05:22:20 UTC

===================================================================
RCS file: /usr/OpenBSD/cvs/src/gnu/usr.bin/texinfo/makeinfo/html.c,v
retrieving revision 1.1.1.3
retrieving revision 1.2
diff -u -r1.1.1.3 -r1.2
--- src/gnu/usr.bin/texinfo/makeinfo/html.c	2006/07/17 16:03:46	1.1.1.3
+++ src/gnu/usr.bin/texinfo/makeinfo/html.c	2006/07/17 22:29:29	1.2
@@ -1,5 +1,5 @@
 /* html.c -- html-related utilities.
-   $Id: html.c,v 1.1.1.3 2006/07/17 16:03:46 espie Exp $
+   $Id: html.c,v 1.2 2006/07/17 22:29:29 espie Exp $
 
    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 Free Software
    Foundation, Inc.
@@ -445,7 +445,7 @@
     return 0;
 
   /* Find the end of the previous tag.  */
-  while (output_paragraph[check_position-1] != '>' && check_position > 0)
+  while (check_position > 0 && output_paragraph[check_position-1] != '>')
     check_position--;
 
   /* Save stuff between tag's end to output_paragraph's end.  */
@@ -462,7 +462,7 @@
     }
 
   /* Find the start of the previous tag.  */
-  while (output_paragraph[check_position-1] != '<' && check_position > 0)
+  while (check_position > 0 && output_paragraph[check_position-1] != '<')
     check_position--;
 
   /* Check to see if this is the tag.  */