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2007-07-15
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1 # portscanner.py: checks for active ports on a given machine; would be
2 # more realistic if checked several hosts at once; different threads
3 # check different ports; there is a self-imposed limit on the number of
4 # threads, and the event mechanism is used to wait if that limit is
5 # reached
6
7 # usage: python portscanner.py host maxthreads
8
9 import sys, threading, socket
10
11 class scanner(threading.Thread):
12 tlist = [] # list of all current scanner threads
13 maxthreads = int(sys.argv[2]) # max number of threads we’re allowing
14 evnt = threading.Event() # e
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server:
import sys
import socket
host = sys.argv[1]
port = int(sys.argv[2])
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((host,port))
while 1:
try:
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