From 2f54848835e030ab0bac81d182386344018913b1 Mon Sep 17 00:00:00 2001
From: xadparo <45482148+xadparo@users.noreply.github.com>
Date: Mon, 30 May 2022 18:29:00 +0900
Subject: [PATCH] fix: os.networkInterface result migrate

---
 lib/ip.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/ip.js b/lib/ip.js
index 4b2adb5..f141519 100644
--- a/lib/ip.js
+++ b/lib/ip.js
@@ -362,6 +362,17 @@ ip.loopback = function (family) {
 ip.address = function (name, family) {
   const interfaces = os.networkInterfaces();
 
+  // Node version 18.x after, os.networkInterfaces() returns { ... family: {4|6} }, not { ... family: {IPv4|IPv6} }
+  // [NodeJS Docs 18.x os.html#osnetworkinterfaces](https://nodejs.org/docs/latest-v18.x/api/os.html#osnetworkinterfaces)
+  // [NodeJS Docs 17.x os.html#osnetworkinterfaces](https://nodejs.org/docs/latest-v17.x/api/os.html#osnetworkinterfaces)
+  for (let name in interfaces) {
+    interfaces[name].forEach(function(details) {
+      if (typeof details.family === 'number') {
+        details.family = 'IPv' + details.family;
+      }
+    });
+  }
+
   //
   // Default to `ipv4`
   //