From dd8c92d5fdf60805815633bdc3827ac2648ad672 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 18 May 2016 18:54:46 -0700
Subject: [PATCH] handle errors better in parser.

---
 lib/bcoin/protocol/parser.js | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/lib/bcoin/protocol/parser.js b/lib/bcoin/protocol/parser.js
index 273f7374..eb24aa1f 100644
--- a/lib/bcoin/protocol/parser.js
+++ b/lib/bcoin/protocol/parser.js
@@ -92,8 +92,11 @@ Parser.prototype.feed = function feed(data) {
 Parser.prototype.parse = function parse(chunk) {
   var checksum;
 
-  if (chunk.length > constants.MAX_MESSAGE)
+  if (chunk.length > constants.MAX_MESSAGE) {
+    this.waiting = 24;
+    this.packet = null;
     return this._error('Packet too large: %dmb.', utils.mb(chunk.length));
+  }
 
   if (this.packet === null) {
     this.packet = this.parseHeader(chunk) || {};
@@ -104,8 +107,11 @@ Parser.prototype.parse = function parse(chunk) {
 
   checksum = utils.checksum(this.packet.payload).readUInt32LE(0, true);
 
-  if (checksum !== this.packet.checksum)
+  if (checksum !== this.packet.checksum) {
+    this.waiting = 24;
+    this.packet = null;
     return this._error('Invalid checksum');
+  }
 
   try {
     this.packet.payload = this.parsePayload(this.packet.cmd, this.packet.payload);
@@ -143,10 +149,13 @@ Parser.prototype.parseHeader = function parseHeader(h) {
     return this._error('Not NULL-terminated cmd');
 
   cmd = h.toString('ascii', 4, 4 + i);
+
   this.waiting = h.readUInt32LE(16, true);
 
-  if (this.waiting > constants.MAX_MESSAGE)
+  if (this.waiting > constants.MAX_MESSAGE) {
+    this.waiting = 24;
     return this._error('Packet length too large: %dmb', utils.mb(this.waiting));
+  }
 
   return {
     cmd: cmd,