parsed_scoped_addresses() may return link-local IPv6 addresses with %0 as the scope id. #1361
Description
OS: Ubuntu 22.04.3 LTS
Python: 3.10.12 (though the issue occurs with 3.12 as well.)
zeroconf: 0.131.0
Hi all,
I've noticed that the parsed_scoped_addresses() will sometimes return IPv6 addresses with the scope ID uninitialized, e.g. fe80::be0f:a7ff:fe00:8a54%0.
When using the address this naturally results in an invalid argument (errno 22) OSError (e.g. from socket.connect.)
Here's some code I've been using to replicate the issue. (Naturally, replicating the issue requires that there be some services on the network matching those specified in the code.) Any idea what I'm doing wrong?
import time
from zeroconf import ServiceBrowser, ServiceListener, Zeroconf, InterfaceChoice, IPVersion
class MyListener(ServiceListener):
def __init__(self):
self.address_cache_ = {}
def update_service(self, zc: Zeroconf, type_: str, name: str) -> None:
pass
def remove_service(self, zc: Zeroconf, type_: str, name: str) -> None:
pass
def add_service(self, zc: Zeroconf, type_: str, name: str) -> None:
info = zc.get_service_info(type_, name)
if info:
print(info.parsed_scoped_addresses())
zeroconf = Zeroconf(InterfaceChoice.All, False, IPVersion.All)
listener = MyListener()
browser = ServiceBrowser(zeroconf, ["_roger._tcp.local.", "_ouster-lidar._tcp.local."], listener)
time.sleep(10)
zeroconf.close()
Here is some output from the script showing the addresses with the uninitialized scope ids:
['<redacted>.65', 'fe80::be0f:a7ff:fe00:8a98%0', '<redacted>:8a98']
['<redacted>.65', 'fe80::be0f:a7ff:fe00:8a98%0', '<redacted>:8a98']
['<redacted>.124', 'fe80::be0f:a7ff:fe00:8a54%0', '<redacted>:8a54']
['<redacted>.124', 'fe80::be0f:a7ff:fe00:8a54%0', '<redacted>:8a54']
['<redacted>.149']
['<redacted>.149']
['<redacted>.24', 'fe80::be0f:a7ff:fe00:8a20%0', '<redacted>:8a20']
['<redacted>.24', 'fe80::be0f:a7ff:fe00:8a20%0', '<redacted>:8a20']
['<redacted>.200', 'fe80::be0f:a7ff:fe00:9bd9%0', '<redacted>:9bd9']
['<redacted>.200', 'fe80::be0f:a7ff:fe00:9bd9%0', '<redacted>:9bd9']
['<redacted>.114', 'fe80::be0f:a7ff:fe00:83bc%0', '<redacted>:83bc']
['<redacted>.114', 'fe80::be0f:a7ff:fe00:83bc%0', '<redacted>:83bc']
['<redacted>.184', 'fe80::be0f:a7ff:fe00:8be5%0', '<redacted>:8be5']
['<redacted>.184', 'fe80::be0f:a7ff:fe00:8be5%0', '<redacted>:8be5']