Fix tlvdata socket infinite loop condition

A client could spin the confluent server endlessly by bailing out of connection
at wrong time.

confluent_common/confluent/tlvdata.py

@@ -44,8 +44,13 @@ def send(handle, data):
 
 def recv(handle):
     tl = handle.recv(4)
+    if not tl:
+        return None
     while len(tl) < 4:
-        tl += handle.recv(4 - len(tl))
+        ndata = handle.recv(4 - len(tl))
+        if not ndata:
+            raise Exception("Error reading data")
+        tl += ndata
     if len(tl) == 0:
         return None
     tl = struct.unpack("!I", tl)[0]

confluent_common/setup.py

@@ -2,7 +2,7 @@ from setuptools import setup
 
 setup(
     name='confluent_common',
-    version='0.1.0',
+    version='0.1.2',
     author='Jarrod Johnson',
     author_email='jbjohnso@us.ibm.com',
     description='common content for confluent client and server',

confluent_server/confluent/sockapi.py

@@ -194,7 +194,7 @@ def process_request(connection, request, cfm, authdata, authname, skipauth):
 
 
 def _tlshandler():
-    plainsocket = socket.socket(AF_INET6)
+    plainsocket = socket.socket(socket.AF_INET6)
     plainsocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
     plainsocket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
     srv = ssl.wrap_socket(plainsocket, keyfile="/etc/confluent/privkey.pem",

confluent_server/setup.py

@@ -2,7 +2,7 @@ from setuptools import setup
 
 setup(
     name='confluent_server',
-    version='0.1.7',
+    version='0.1.8',
     author='Jarrod Johnson',
     author_email='jbjohnso@us.ibm.com',
     url='http://xcat.sf.net/',