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Fast-Port-scanner.py
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Fast-Port-scanner.py
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import threading
from queue import Queue
import time
import socket
# a print_lock is used to prevent "double"
# modification of shared variables this is
# used so that while one thread is using a
# variable others cannot access it Once it
# is done, the thread releases the print_lock.
# In order to use it, we want to specify a
# print_lock per thing you wish to print_lock.
print_lock = threading.Lock()
# ip = socket.gethostbyname(target)
target = 'localhost'
def portscan(port):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
con = s.connect((target, port))
with print_lock:
print('port is open', port)
con.close()
except:
print('port is close', port)
# The threader thread pulls a worker
# from a queue and processes it
def threader():
while True:
# gets a worker from the queue
worker = q.get()
# Run the example job with the available
# worker in queue (thread)
portscan(worker)
# completed with the job
q.task_done()
# Creating the queue and threader
q = Queue()
# number of threads are we going to allow for
for x in range(4):
t = threading.Thread(target=threader)
# classifying as a daemon, so they it will
# die when the main dies
t.daemon = True
# begins, must come after daemon definition
t.start()
start = time.time()
# 10 jobs assigned.
for worker in range(1, 10):
q.put(worker)
# wait till the thread terminates.
q.join()