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bpo-34139: Remove unix datagram socket from FS before binding (GH-8323)

Browse source 
https://bugs.python.org/issue34139
This commit is contained in:
Quentin Dawans 2019-04-09 15:40:59 +02:00 • committed by Miss Islington (bot)
parent 5aaac94eeb
commit 56065d4c8a
3 changed files with 29 additions and 0 deletions
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14
Lib/asyncio/base_events.py
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@ -20,6 +20,7 @@ import heapq
import itertools
import os
import socket
import stat
import subprocess
import threading
import time
@ -1183,6 +1184,19 @@ class BaseEventLoop(events.AbstractEventLoop):
for addr in (local_addr, remote_addr):
if addr is not None and not isinstance(addr, str):
raise TypeError('string is expected')
if local_addr and local_addr[0] not in (0, '\x00'):
try:
if stat.S_ISSOCK(os.stat(local_addr).st_mode):
os.remove(local_addr)
except FileNotFoundError:
pass
except OSError as err:
# Directory may have permissions only to create socket.
logger.error('Unable to check or remove stale UNIX '
'socket %r: %r',
local_addr, err)
addr_pairs_info = (((family, proto),
(local_addr, remote_addr)), )
else: