reverting to dpkt v1.8.6 instead of 1.8.6.2 to avoid importing error of pystone modue

1 files changed, 17 insertions, 0 deletions

diff --git a/scripts/external_libs/dpkt-1.8.6/dpkt/igmp.py b/scripts/external_libs/dpkt-1.8.6/dpkt/igmp.py
new file mode 100644
index 00000000..8031fa72
--- /dev/null
+++ b/scripts/external_libs/dpkt-1.8.6/dpkt/igmp.py
@@ -0,0 +1,17 @@
+# $Id: igmp.py 23 2006-11-08 15:45:33Z dugsong $
+
+"""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)