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windows: improve ssnet/try_connect() logic

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nom3ad 2024-05-01 20:08:49 +05:30 committed by Brian May
parent b826ae6b91
commit 554b8e3ae5
1 changed files with 16 additions and 12 deletions
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28
sshuttle/ssnet.py
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@ -168,21 +168,25 @@ class SockWrapper:
debug3('%r: fixed connect result: %s' % (self, e))
if e.args[0] in [errno.EINPROGRESS, errno.EALREADY]:
pass # not connected yet
elif sys.platform == 'win32' and e.args[0] == errno.WSAEWOULDBLOCK:
elif sys.platform == 'win32' and e.args[0] == errno.WSAEWOULDBLOCK: # 10035
pass # not connected yet
elif e.args[0] == 0:
# connected successfully (weird Linux bug?)
# Sometimes Linux seems to return EINVAL when it isn't
# invalid. This *may* be caused by a race condition
# between connect() and getsockopt(SO_ERROR) (ie. it
# finishes connecting in between the two, so there is no
# longer an error). However, I'm not sure of that.
#
# I did get at least one report that the problem went away
# when we added this, however.
self.connect_to = None
if sys.platform == 'win32':
# On Windows "real" error of EINVAL could be 0, when socket is in connecting state
pass
else:
# connected successfully (weird Linux bug?)
# Sometimes Linux seems to return EINVAL when it isn't
# invalid. This *may* be caused by a race condition
# between connect() and getsockopt(SO_ERROR) (ie. it
# finishes connecting in between the two, so there is no
# longer an error). However, I'm not sure of that.
#
# I did get at least one report that the problem went away
# when we added this, however.
self.connect_to = None
elif e.args[0] == errno.EISCONN:
# connected successfully (BSD)
# connected successfully (BSD + Windows)
self.connect_to = None
elif e.args[0] in NET_ERRS + [errno.EACCES, errno.EPERM]:
# a "normal" kind of error