Address hostname failure on Windows

[Greg Reimer]

This works on OS X, but fails on Windows 7 (io.js 2.5.0):

    var http = require('http')

    var server = http.createServer(function(req, res) {

      res.end('hello')

    }).listen(0, function() {

      var addr = server.address()

      http.get({

        hostname: addr.address, // <-- this

        port: addr.port,

        path: '/foo',

      }, function(res) {

        console.log('hello')

        process.exit(0)

      })

    })

If I change addr.address to 'localhost' it starts working, but I'm curious why. Here's the error:

    Error: connect EADDRNOTAVAIL :::51539

        at Object.exports._errnoException (util.js:812:11)

        at exports._exceptionWithHostPort (util.js:835:20)

        at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1048:14)

Thanks.

[Ryan Schmidt]

I don't know the answer to your question, but it looks like you're trying to have your web server send an http request to itself. That's usually an indication that you've structured your program incorrectly; it shouldn't ever be necessary to do that.

[Greg Reimer]

Thanks. I think there are a few valid use cases for it, for example as part of a testing function, which is what this was.

[Ryan Graham]

Your listening address is the equivalent of 0.0.0.0, which Windows does not like to connect to. The solution for your IPv6 case is the same as for IPv4, which is to give a host address. Unfortunately that means on Windows you can't do what you're trying to do with an ADDRANY listening socket.

~Ryan

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