From 6bedfe19341f4dac9b891fee3796eeba12100264 Mon Sep 17 00:00:00 2001
From: David Wilson <dw@botanicus.net>
Date: Thu, 11 Aug 2016 02:15:15 +0100
Subject: [PATCH] Fix input length check error.

---
 econtext/core.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/econtext/core.py b/econtext/core.py
index 3ad41482..0901afc1 100644
--- a/econtext/core.py
+++ b/econtext/core.py
@@ -276,7 +276,7 @@ class Stream(BasicStream):
     def _ReceiveOne(self):
         msg_mac = self._input_buf[:20]
         msg_len = struct.unpack('>L', self._input_buf[20:24])[0]
-        if len(self._input_buf) < msg_len-24:
+        if len(self._input_buf)-24 < msg_len:
             IOLOG.error('Input too short')
             return False