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GH-86508: skip binding to local addresses of different family in asyncio.open_connection (#100615)

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Kumar Aditya 2023-01-04 13:30:26 +05:30 • committed by GitHub
parent a286caa937
commit ba8dcdbcab
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3 changed files with 50 additions and 2 deletions
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10
Lib/asyncio/base_events.py
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@ -961,7 +961,10 @@ class BaseEventLoop(events.AbstractEventLoop):
sock = socket.socket(family=family, type=type_, proto=proto)
sock.setblocking(False)
if local_addr_infos is not None:
for _, _, _, _, laddr in local_addr_infos:
for lfamily, _, _, _, laddr in local_addr_infos:
# skip local addresses of different family
if lfamily != family:
continue
try:
sock.bind(laddr)
break
@ -974,7 +977,10 @@ class BaseEventLoop(events.AbstractEventLoop):
exc = OSError(exc.errno, msg)
my_exceptions.append(exc)
else: # all bind attempts failed
raise my_exceptions.pop()
if my_exceptions:
raise my_exceptions.pop()
else:
raise OSError(f"no matching local address with {family=} found")
await self.sock_connect(sock, address)
return sock
except OSError as exc: