From b12771ab3048bb61b3dc09fd21198613f43fa030 Mon Sep 17 00:00:00 2001
From: Senthil Kumaran <senthil@uthcode.com>
Date: Mon, 23 Apr 2012 23:50:07 +0800
Subject:  3.2 - Fix for Issue13684 - httplib tunnel infinite loop

---
 Lib/http/client.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/http/client.py b/Lib/http/client.py
index 745b999..6828f14 100644
--- a/Lib/http/client.py
+++ b/Lib/http/client.py
@@ -715,6 +715,9 @@ class HTTPConnection:
             line = response.fp.readline(_MAXLINE + 1)
             if len(line) > _MAXLINE:
                 raise LineTooLong("header line")
+            if not line:
+                # for sites which EOF without sending a trailer
+                break
             if line == b'\r\n':
                 break
 
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