no longer need to include IN.py or SOCKET.py
diff --git a/Demo/sockets/mcast.py b/Demo/sockets/mcast.py
index 8c6298e..4cd8706 100755
--- a/Demo/sockets/mcast.py
+++ b/Demo/sockets/mcast.py
@@ -1,5 +1,7 @@
-# Send/receive UDP multicast packets (SGI)
-# After /usr/people/4Dgifts/examples/network/mcast.c
+# Send/receive UDP multicast packets.
+# Requires that your OS kernel supports IP multicast.
+# This is built-in on SGI, still optional for most other vendors.
+#
# Usage:
# mcast -s (sender)
# mcast -b (sender, using broadcast instead multicast)
@@ -13,8 +15,6 @@
import struct
import regsub
from socket import *
-from SOCKET import *
-from IN import * # SGI specific!!! (Sorry)
# Main program
@@ -60,13 +60,10 @@
def openmcastsock(group, port):
# Import modules used only here
import regsub
- import socket
import struct
- from SOCKET import *
- from IN import *
#
# Create a socket
- s = socket.socket(AF_INET, SOCK_DGRAM)
+ s = socket(AF_INET, SOCK_DGRAM)
#
# Allow multiple copies of this program on one machine
# (not strictly needed)
@@ -77,7 +74,7 @@
#
# Look up multicast group address in name server
# (doesn't hurt if it is already in ddd.ddd.ddd.ddd format)
- group = socket.gethostbyname(group)
+ group = gethostbyname(group)
#
# Construct binary group address
bytes = eval(regsub.gsub('\.', ',', group))