From 95b743d5b0e207ecbe92252757100641b5e13d35 Mon Sep 17 00:00:00 2001
From: yiwenchen <yiwenchen@synology.com>
Date: Wed, 14 Feb 2018 22:26:54 +0000
Subject: [PATCH] Fix boundary for test introduced in
 3e3f1029c9ec6c63e430ff51063a6301d4b2262

This fixes breakage of  DHCPv6 relay.

(cherry picked from commit 499d8dde2b1a216eab9252ee500cc31b8c2b2974)
---
 src/rfc3315.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rfc3315.c b/src/rfc3315.c
index 1e85c5c..42c7a0e 100644
--- a/src/rfc3315.c
+++ b/src/rfc3315.c
@@ -216,9 +216,9 @@ static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
   
   for (opt = opts; opt; opt = opt6_next(opt, end))
     {
-      if (opt6_ptr(opt, 0) + opt6_len(opt) >= end) {
+      if (opt6_ptr(opt, 0) + opt6_len(opt) > end) 
         return 0;
-      }
+     
       int o = new_opt6(opt6_type(opt));
       if (opt6_type(opt) == OPTION6_RELAY_MSG)
 	{
-- 
2.21.1