bpo-34139: Remove unix datagram socket from FS before binding (GH-8323)
https://bugs.python.org/issue34139
diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py
index 36fe7e0..9b4b846 100644
--- a/Lib/asyncio/base_events.py
+++ b/Lib/asyncio/base_events.py
@@ -20,6 +20,7 @@
import itertools
import os
import socket
+import stat
import subprocess
import threading
import time
@@ -1183,6 +1184,19 @@
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: