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Fix AsyncSniffer Attribute Error #4800

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Merged
merged 2 commits into from
Jul 30, 2025
Merged

Fix AsyncSniffer Attribute Error #4800

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dbc895c
Fix AsyncSniffer Attribute Error
louis-6wind Jul 21, 2025
19e5e86
Forward error + test
gpotter2 Jul 30, 2025
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5 changes: 5 additions & 0 deletions scapy/sendrecv.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1401,6 +1401,11 @@ def stop(self, join=True):
"""Stops AsyncSniffer if not in async mode"""
if self.running:
self.stop_cb()
if not hasattr(self, "continue_sniff"):
# Never started -> is there an exception?
if self.exception is not None:
raise self.exception
return None
if self.continue_sniff:
raise Scapy_Exception(
"Unsupported (offline or unsupported socket)"
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9 changes: 9 additions & 0 deletions test/regression.uts
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Original file line number Diff line number Diff line change
Expand Up @@ -1787,6 +1787,15 @@ try:
except ValueError:
assert True

try:
sniffer = AsyncSniffer(iface="this_interface_does_not_exists")
sniffer.start()
sniffer.thread.join()
sniffer.stop()
assert False, "Should have errored by now"
except ValueError:
assert True

= Sending a TCP syn 'forever' at layer 2 and layer 3
~ netaccess needs_root IP
def _test():
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