EINVAL and EHOSTDOWN

[esavini]

Hi,
I've created a simple server, but if I make requests from the local machine (OS X El Capitan, dig command) always is ok, if I make requests from another computer in the same LAN (Windows 10, Chrome) always I get EHOSTDOWN or EINVAL errors.

The code I used is this.

var named = require('node-named')
var dns = require('dns')

var dnsServer = named.createServer()

dnsServer.on('query', (query) => {

  switch(query.type()) {

    case 'A':
      dns.resolve(query.name(), 'A', (err, addresses) => {

        if(err)
          return

        for(var i = 0; i < addresses.length; i++)
          query.addAnswer(query.name(), new named.ARecord(addresses[i]), 0)

        dnsServer.send(query)
      })

      break

  }
})

dnsServer.on('uncaughtException', (e) => console.log('LOG0'))
dnsServer.on('after', (e) => console.log('LOG1'))
dnsServer.on('clientError', (e) => console.log('LOG2'));

dnsServer.listen(process.env.DNS_PORT || 53, () => {
  console.log('DNS server started.')
})

Console output is this

imac-di-edoardo:ad Edoardo$ sudo npm start

> [email protected] start /Users/Edoardo/Desktop/FLRAuth/ad
> node server.js

DNS server started.
{ Error: send EHOSTDOWN ::ffff:192.168.1.4:61551
    at Object.exports._errnoException (util.js:1018:11)
    at exports._exceptionWithHostPort (util.js:1041:20)
    at SendWrap.afterSend [as oncomplete] (dgram.js:406:11)
  code: 'EHOSTDOWN',
  errno: 'EHOSTDOWN',
  syscall: 'send',
  address: '::ffff:192.168.1.4',
  port: 61551 }
{"name":"named","hostname":"imac-di-edoardo.local","pid":1081,"component":"agent","level":40,"adddress":"::ffff:192.168.1.4","port":61551,"err":{"message":"send EHOSTDOWN ::ffff:192.168.1.4:61551","name":"Error","stack":"Error: send EHOSTDOWN ::ffff:192.168.1.4:61551\n    at Object.exports._errnoException (util.js:1018:11)\n    at exports._exceptionWithHostPort (util.js:1041:20)\n    at SendWrap.afterSend [as oncomplete] (dgram.js:406:11)","code":"EHOSTDOWN","errno":"EHOSTDOWN","syscall":"send","address":"::ffff:192.168.1.4","port":61551},"msg":"send: unable to send response","time":"2017-04-18T16:45:12.387Z","v":0}

events.js:160
      throw er; // Unhandled 'error' event
      ^
ExceptionError: function () {
                return msg || name;
        }
    at SendWrap.callback (/Users/Edoardo/Desktop/FLRAuth/ad/node_modules/node-named/lib/server.js:137:44)
    at SendWrap.afterSend [as oncomplete] (dgram.js:411:8)

npm ERR! Darwin 15.6.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"
npm ERR! node v6.10.1
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! [email protected] start: `node server.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] start script 'node server.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the ad package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node server.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs ad
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls ad
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/Edoardo/Desktop/FLRAuth/ad/npm-debug.log

My node version is 6.10.1.

Thank you in advance.

[trevoro]

Ah you are indeed correct.
This is a pretty old issue, actually as it appears to have been introduced when there was a change to the way that node address binding worked.

I'll submit a patch shortly.

[tsndr]

When will it get patched?

[gbrian]

@tsndr there you go #33
Thanks @trevoro for this project, helped me a lot! 😉

[A-312]

Do we get a fix ?