From 6e99c29cf844c6bb57efef530328f63decd4db24 Mon Sep 17 00:00:00 2001
From: Tim van der Meij <timvandermeij@gmail.com>
Date: Tue, 30 Dec 2014 14:18:51 +0100
Subject: [PATCH] Implement guards for stringToBytes and bytesToString

---
 src/shared/util.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/shared/util.js b/src/shared/util.js
index 767f727ea..780af3388 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -439,6 +439,8 @@ var XRefParseException = (function XRefParseExceptionClosure() {
 
 
 function bytesToString(bytes) {
+  assert(bytes !== null && typeof bytes === 'object' &&
+         bytes.length !== undefined, 'Invalid argument for bytesToString');
   var length = bytes.length;
   var MAX_ARGUMENT_COUNT = 8192;
   if (length < MAX_ARGUMENT_COUNT) {
@@ -454,6 +456,7 @@ function bytesToString(bytes) {
 }
 
 function stringToBytes(str) {
+  assert(typeof str === 'string', 'Invalid argument for stringToBytes');
   var length = str.length;
   var bytes = new Uint8Array(length);
   for (var i = 0; i < length; ++i) {