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import time | |
import _xxsubinterpreters as subinterpreters | |
import _xxinterpchannels as interpchannels | |
from threading import Thread | |
import textwrap as tw | |
from queue import Queue | |
timeout = 1 # in seconds.. | |
def run(host: str, port: int, results: Queue): | |
# Create a communication channel | |
channel_id = interpchannels.create() | |
interpid = subinterpreters.create() | |
subinterpreters.run_string( | |
interpid, | |
tw.dedent( | |
""" | |
import socket | |
import _xxsubinterpreters as subinterpreters | |
import _xxinterpchannels as interpchannels | |
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
sock.settimeout(timeout) | |
result = sock.connect_ex((host, port)) | |
interpchannels.send(channel_id, result) | |
sock.close() | |
"""), | |
shared=dict( | |
channel_id=channel_id, | |
host=host, | |
port=port, | |
timeout=timeout | |
)) | |
print("completed") | |
output = interpchannels.recv(channel_id) | |
interpchannels.release(channel_id) | |
if output == 0: | |
results.put(port) | |
if __name__ == '__main__': | |
start = time.time() | |
host = "localhost" # pick a friend | |
threads = [] | |
results = Queue() | |
for port in range(80, 100): | |
t = Thread(target=run, args=(host, port, results)) | |
t.start() | |
threads.append(t) | |
for t in threads: | |
t.join() | |
while not results.empty(): | |
print("Port {0} is open".format(results.get())) | |
print("Completed scan in {0} seconds".format(time.time() - start)) |
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FWIW, I'm pretty sure the crashes are much fewer now, though non-zero.