feat: getMultiaddr and missing deps

package.json

@@ -37,11 +37,13 @@
   "dependencies": {
     "debug": "^3.1.0",
     "interface-connection": "~0.3.2",
+    "ip-address": "^5.8.9",
     "lodash.includes": "^4.3.0",
     "lodash.isfunction": "^3.0.9",
     "mafmt": "^3.0.2",
     "multiaddr": "^3.0.2",
     "once": "^1.4.0",
+    "stream-to-pull-stream": "^1.7.2",
     "utp-native": "^1.6.2"
   },
   "contributors": [

src/get-multiaddr.js

@@ -0,0 +1,28 @@
+'use strict'
+
+const multiaddr = require('multiaddr')
+const Address6 = require('ip-address').Address6
+
+module.exports = (socket) => {
+  let ma
+
+  if (socket.remoteFamily === 'IPv6') {
+    const addr = new Address6(socket.remoteAddress)
+
+    if (addr.v4) {
+      const ip4 = addr.to4().correctForm()
+      ma = multiaddr('/ip4/' + ip4 +
+        '/tcp/' + socket.remotePort
+      )
+    } else {
+      ma = multiaddr('/ip6/' + socket.remoteAddress +
+        '/tcp/' + socket.remotePort
+      )
+    }
+  } else {
+    ma = multiaddr('/ip4/' + socket.remoteAddress +
+      '/tcp/' + socket.remotePort)
+  }
+
+  return ma
+}