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Ensure zeroconf can be loaded when the system disables IPv6 #624

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Merged
bdraco merged 1 commit into from
Jun 15, 2021
Merged

Ensure zeroconf can be loaded when the system disables IPv6 #624

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5 changes: 4 additions & 1 deletion zeroconf/const.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,10 @@
_MDNS_ADDR = '224.0.0.251'
_MDNS_ADDR_BYTES = socket.inet_aton(_MDNS_ADDR)
_MDNS_ADDR6 = 'ff02::fb'
_MDNS_ADDR6_BYTES = socket.inet_pton(socket.AF_INET6, _MDNS_ADDR6)
try:
_MDNS_ADDR6_BYTES = socket.inet_pton(socket.AF_INET6, _MDNS_ADDR6)
except OSError: # can't use AF_INET6, IPv6 is disabled
pass
_MDNS_PORT = 5353
_DNS_PORT = 53
_DNS_HOST_TTL = 120 # two minute for host records (A, SRV etc) as-per RFC6762
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