From d5f29c37b4d17b5b9e5ab8194ff2cdb37e71b3cb Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 14 May 2014 15:08:53 -0500
Subject: [PATCH] script: fix undefined error.

Signed-off-by: Fedor Indutny <fedor@indutny.com>
---
 lib/bcoin/script.js | 4 ++--
 lib/bcoin/utils.js  | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/bcoin/script.js b/lib/bcoin/script.js
index 0949670d..af76103f 100644
--- a/lib/bcoin/script.js
+++ b/lib/bcoin/script.js
@@ -35,12 +35,12 @@ script.decode = function decode(s) {
       opcodes.push(s.slice(i, i + len));
       i += 2 + len;
     } else if (opcode === 'pushdata2') {
-      var len = readU16(s, i);
+      var len = utils.readU16(s, i);
       i += 2;
       opcodes.push(s.slice(i, i + len));
       i += len;
     } else if (opcode === 'pushdata4') {
-      var len = readU32(s, i);
+      var len = utils.readU32(s, i);
       i += 4;
       opcodes.push(s.slice(i, i + len));
       i += len;
diff --git a/lib/bcoin/utils.js b/lib/bcoin/utils.js
index f2afa256..1adf947e 100644
--- a/lib/bcoin/utils.js
+++ b/lib/bcoin/utils.js
@@ -134,6 +134,12 @@ utils.dsha256 = function dsha256(data, enc) {
   return utils.sha256(utils.sha256(data, enc));
 };
 
+utils.readU16 = function readU16(arr, off) {
+  if (!off)
+    off = 0;
+  return arr[off] | (arr[off + 1] << 8);
+};
+
 utils.readU32 = function readU32(arr, off) {
   if (!off)
     off = 0;