Fix reading headers of large packets

If it takes more than one pass through readPacket to collect the
entirety of a packet, we would not correctly read the header after
the first pass.  This ensures that any time the packet is at least
long enough for a header, it is decoded.

Change-Id: I210bed20da3005298765ce22826e26539d085125

1 files changed, 2 insertions, 2 deletions

diff --git a/gear/__init__.py b/gear/__init__.py
index 7113ab5..76b5b16 100644
--- a/gear/__init__.py
+++ b/gear/__init__.py
@@ -315,9 +315,9 @@ class Connection(object):
                         packet = b''
                         return admin_request
                 else:
-                    if len(packet) == 12:
+                    if code is None and len(packet) >= 12:
                         code, ptype, datalen = struct.unpack('!4sii',
-                                                             packet)
+                                                             packet[:12])
                     if len(packet) == datalen + 12:
                         p = Packet(code, ptype, packet[12:],
                                    connection=self)