Ticket #4212 defect new
Opened 3 years ago
Twisted names gives the wrong address family.
|Reported by:||ali||Owned by:|
I don't pretend to understand this too well, but:
from twisted.internet import reactor, ssl from twisted.words.protocols import irc from twisted.internet.protocol import ClientFactory from twisted.names import client reactor.installResolver(client.createResolver()) class Bot(irc.IRCClient): nickname = 'screwytestcase' def signedOn(self): print 'Signed On' class BotFac(ClientFactory): protocol = Bot def clientConnectionFailed(self, connector, reason): print 'Failed', connector, reason f = BotFac() reactor.connectSSL("testnet.freenode.net", 9003, f, ssl.ClientContextFactory()) reactor.run()
Failed <twisted.internet.ssl.Connector instance at 0x99114ec> [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectError'>: An error occurred while connecting: -9: Unknown error 4294967287.
According to exarkun
19:58 < exarkun> aa_: testnet.freenode.net has some AAAA records and some A records 19:58 < exarkun> aa_: Seems like Twisted Names will give you back an AAAA record from getHostByName, if it happens to be first in the response 19:59 < exarkun> aa_: which sometimes it will be, because servers like to jumble up the order 19:59 < exarkun> socket.gaierror: [Errno -9] Address family for hostname not supported 20:00 < exarkun> That's some bad error handling on our part; -9 isn't a real errno, but gaierror tricks us into thinking it is.
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