nodename nor servname provided, or not known

[shinma]

iOS: 11.3
Xcode: 9.3

When: on executing connect(to host: String, port: Int32, timeout: UInt = default) on Socket
Possible cause: getaddrinfo()

[shinma]

.create(family: .inet6, type: .stream, proto: .tcp)

[shinma]

Even though I'm not using IP address it shouldn't work like this. What if provider switches to IPv6 in the meantime.

[billabt]

I've made a change to the signature of the connect() function that corrects the problems but also allows for the caller to specify that only a socket of the family of the calling Socket will be allowed. The default is to allow connection to a socket of any family. This change will be in the latest version, 1.0.2, as soon as I get it posted. Thanks.

[davidjaystrauss]

What was the fix on this? I'm still having this error occur on socket create in 1.0.46

[billabt]

@davidjaystrauss What error are you getting? Can you give me an example of the code? Thanks.

[davidjaystrauss]

Hi @billabt, definitely!

We aren't specifying anything to the create method, as we're using this in parallel with BlueSSLService.

So for create we just call try Socket.create() and get Error code: -9989(0x-2705), nodename nor servname provided, or not known

This doesn't happen every time, seems to be random at the moment when it's occurring.. sorry trying to get some more data for you

[davidjaystrauss]

Some more info:

After creation we specify host/port with try socket.connect(to: self.config.getProxyHost(), port: Int32(self.config.getProxyPort()))

[billabt]

What is the value being returned by self.config.getProxyHost()? The error you're getting indicates a getaddrinfo() failure... This typically means that the hostname provided is an empty string.