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Fixing urllib3 port binding crash #9958

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merged 1 commit into from
Mar 20, 2023
Merged

Fixing urllib3 port binding crash #9958

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27 changes: 18 additions & 9 deletions projects/urllib3/fuzz_requests.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,12 +16,12 @@

import atheris
from http.server import BaseHTTPRequestHandler, HTTPServer
import os
import random
import sys
import threading
import time

with atheris.instrument_imports():
import urllib3
import urllib3

timeout = urllib3.util.Timeout(connect=1.0, read=1.0)
urllib_pool = urllib3.PoolManager(timeout=timeout)
Expand Down Expand Up @@ -117,13 +117,22 @@ def TestOneInput(input_bytes):
r.data
r.headers


if __name__ == "__main__":
x = threading.Thread(target=run_webserver, daemon=True)
x.start()
def main():
# Try and get an open port to run our test web server
for attempt in range(10):
try:
PORT = random.randint(8000,9999)
x = threading.Thread(target=run_webserver, daemon=True)
x.start()
break
except OSError as e:
pass

time.sleep(0.5) # Short delay to start test server

atheris.Setup(sys.argv, TestOneInput)

atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput)
atheris.Fuzz()

if __name__ == "__main__":
main()