added dpkt package, initial stateless client implementation

1 files changed, 19 insertions, 0 deletions

diff --git a/external_libs/python/dpkt-1.8.6.2/dpkt/igmp.py b/external_libs/python/dpkt-1.8.6.2/dpkt/igmp.py
new file mode 100644
index 00000000..5e5cb166
--- /dev/null
+++ b/external_libs/python/dpkt-1.8.6.2/dpkt/igmp.py
@@ -0,0 +1,19 @@
+# $Id: igmp.py 23 2006-11-08 15:45:33Z dugsong $
+# -*- coding: utf-8 -*-
+"""Internet Group Management Protocol."""
+
+import dpkt
+
+
+class IGMP(dpkt.Packet):
+    __hdr__ = (
+        ('type', 'B', 0),
+        ('maxresp', 'B', 0),
+        ('sum', 'H', 0),
+        ('group', 'I', 0)
+    )
+
+    def __str__(self):
+        if not self.sum:
+            self.sum = dpkt.in_cksum(dpkt.Packet.__str__(self))
+        return dpkt.Packet.__str__(self)