From 6e1dfd3003ab762a59a70203f45939f9463533d3 Mon Sep 17 00:00:00 2001
From: "Ryan X. Charles" <ryan@bitpay.com>
Date: Wed, 17 Sep 2014 15:41:30 -0700
Subject: [PATCH] allow bufferreader.read to specify length

...to be more symmetric with the write function of bufferwriter
---
 lib/bufferreader.js  |  4 +++-
 test/bufferreader.js | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/bufferreader.js b/lib/bufferreader.js
index ffac561..375ed3f 100644
--- a/lib/bufferreader.js
+++ b/lib/bufferreader.js
@@ -28,7 +28,9 @@ BufferReader.prototype.buffer = function(len) {
   return buf;
 };
 
-BufferReader.prototype.read = function() {
+BufferReader.prototype.read = function(len) {
+  if (len)
+    return this.buffer(len);
   var buf = this.buf.slice(this.pos);
   this.pos = this.buf.length;
   return buf;
diff --git a/test/bufferreader.js b/test/bufferreader.js
index 650389f..57ed76f 100644
--- a/test/bufferreader.js
+++ b/test/bufferreader.js
@@ -58,6 +58,16 @@ describe('BufferReader', function() {
       br.read().toString('hex').should.equal(buf.toString('hex'));
     });
 
+    it('should return a buffer of this length', function() {
+      var buf = new Buffer(10);
+      buf.fill(0);
+      var br = new BufferReader(buf);
+      var buf2 = br.read(2);
+      buf2.length.should.equal(2);
+      br.eof().should.equal(false);
+      br.pos.should.equal(2);
+    });
+
   });
 
   describe('#readUInt8', function() {