From 5286ef2f4bec6155219dbb132157f98588ab82bd Mon Sep 17 00:00:00 2001
From: Trustin Lee <t@motd.kr>
Date: Tue, 16 Sep 2014 19:08:52 +0900
Subject: [PATCH] Fix a bug in NetUtil.createByteArrayFromIpAddressString()

Motivation:

An IPv6 string can have a zone index which is followed by the '%' sign.
When a user passes an IPv6 string with a zone index,
NetUtil.createByteArrayFromIpAddressString() returns an incorrect value.

Modification:

- Strip the zone index before conversion

Result:

An IPv6 string with a zone index is decoded correctly.
---
 common/src/main/java/io/netty/util/NetUtil.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/common/src/main/java/io/netty/util/NetUtil.java b/common/src/main/java/io/netty/util/NetUtil.java
index 3a1f1057e0..b2ecdfb5da 100644
--- a/common/src/main/java/io/netty/util/NetUtil.java
+++ b/common/src/main/java/io/netty/util/NetUtil.java
@@ -284,6 +284,11 @@ public final class NetUtil {
                 ipAddressString = ipAddressString.substring(1, ipAddressString.length() - 1);
             }
 
+            int percentPos = ipAddressString.indexOf('%');
+            if (percentPos >= 0) {
+                ipAddressString = ipAddressString.substring(0, percentPos);
+            }
+
             StringTokenizer tokenizer = new StringTokenizer(ipAddressString, ":.", true);
             ArrayList<String> hexStrings = new ArrayList<String>();
             ArrayList<String> decStrings = new ArrayList<String>();