Module Name:    src
Committed By:   yamt
Date:           Thu May 22 15:45:50 UTC 2014

Modified Files:
        src/external/bsd/libbind/dist/nameser [yamt-pagecache]: ns_name.c

Log Message:
sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")


To generate a diff of this commit:
cvs rdiff -u -r1.1.1.1.14.1 -r1.1.1.1.14.2 \
    src/external/bsd/libbind/dist/nameser/ns_name.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/external/bsd/libbind/dist/nameser/ns_name.c
diff -u src/external/bsd/libbind/dist/nameser/ns_name.c:1.1.1.1.14.1 src/external/bsd/libbind/dist/nameser/ns_name.c:1.1.1.1.14.2
--- src/external/bsd/libbind/dist/nameser/ns_name.c:1.1.1.1.14.1	Tue Oct 30 18:55:33 2012
+++ src/external/bsd/libbind/dist/nameser/ns_name.c	Thu May 22 15:45:50 2014
@@ -1,4 +1,4 @@
-/*	$NetBSD: ns_name.c,v 1.1.1.1.14.1 2012/10/30 18:55:33 yamt Exp $	*/
+/*	$NetBSD: ns_name.c,v 1.1.1.1.14.2 2014/05/22 15:45:50 yamt Exp $	*/
 
 /*
  * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
@@ -463,11 +463,13 @@ ns_name_unpack2(const u_char *msg, const
 			}
 			if (len < 0)
 				len = srcp - src + 1;
-			srcp = msg + (((n & 0x3f) << 8) | (*srcp & 0xff));
-			if (srcp < msg || srcp >= eom) {  /*%< Out of range. */
+
+			n = ((n & 0x3f) << 8) | (*srcp & 0xff);
+			if (n >= eom - msg) {  /*%< Out of range. */
 				errno = EMSGSIZE;
 				return (-1);
 			}
+			srcp = msg + n;
 			checked += 2;
 			/*
 			 * Check for loops in the compressed name;

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