From ac314287b83957a20c7f71113f224cc05f4eb09c Mon Sep 17 00:00:00 2001
From: Yury Popov <github@phoenix.dj>
Date: Sun, 11 Sep 2016 14:09:30 +0300
Subject: [PATCH] Fix IPv6 AltName parsers

---
 index.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 856f4d2..815e237 100644
--- a/index.js
+++ b/index.js
@@ -39,7 +39,13 @@ function getCommonNames (buffer, encoding) {
         case 'dNSName':
           return e.value
         case 'iPAddress':
-          return [e.value[0], e.value[1], e.value[2], e.value[3]].join('.')
+          if (e.value.length === 4) {
+            return [e.value[0], e.value[1], e.value[2], e.value[3]].join('.')
+          } else if (e.value.length === 16) {
+            return e.value.toString('hex').replace(/(.{4})/g, '$1:').replace(/:$/, '')
+          }
+          console.log('Unknown IP value: %s', e.value.toString('hex'))
+          return null
         default:
           console.log('Unknown type: %s', e.type)
           return null