change names of clients

hbc

@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+# $Id: hbc,v 1.1 2005/07/14 19:28:59 andreas Exp $
+import sys, time, socket, os, signal
+
+ADDR="204.29.161.33"
+#ADDR="10.99.1.4"
+PORT=50003
+INTERVAL=20
+
+def handler(signum, frame):
+	global up
+	if signum == 1:
+		os.execv("/usr/bin/env", ["python", sys.argv[0],"relaunch"])
+	if up == 0:
+		return
+	sys.exit(0)
+iam=socket.gethostname()
+sock=socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+msg="interval=%s;name=%s" % (INTERVAL, iam)
+
+if len(sys.argv) <= 1 or sys.argv[1] != "relaunch":
+	msgboot="boot=1;interval=%s;name=%s" % (INTERVAL, iam)
+	while 1:
+		try:
+			sock.sendto(msgboot, (ADDR, PORT))
+			break
+		except:
+			time.sleep(10)
+	
+up=1
+signal.signal(signal.SIGTERM, handler)
+signal.signal(signal.SIGHUP, handler)
+
+while up:
+	try:
+		time.sleep(10)
+	except:
+		break
+	try:
+		sock.sendto(msg, (ADDR, PORT))
+	except:
+		pass
+
+up=0
+msg="shutdown=1;name=%s" % (iam)
+sock.sendto(msg, (ADDR, PORT))
+time.sleep(1)
+sock.close()