From 71193906819ba36982a21d3d79a2251c56c92cd2 Mon Sep 17 00:00:00 2001
From: ztimson <zaktimson@gmail.com>
Date: Mon, 21 Jul 2025 18:25:14 -0400
Subject: [PATCH] Added reserved IP utility

---
 package.json |  2 +-
 src/misc.ts  | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 051e99c..30a7297 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/utils",
-	"version": "0.26.8",
+	"version": "0.26.9",
 	"description": "Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",
diff --git a/src/misc.ts b/src/misc.ts
index bb29be9..196c5fd 100644
--- a/src/misc.ts
+++ b/src/misc.ts
@@ -47,6 +47,17 @@ export function ipV6ToV4(ip: string) {
 	return ipv4;
 }
 
+/**
+ * Check if IP is reserved, e.g. localhost, private IPs, etc.
+ * @param {string} ip
+ * @returns {boolean}
+ */
+export function reservedIp(ip: string): boolean {
+	if(ip == 'localhost') return true;
+	return /\b(10\.(?:[0-9]{1,3}\.){2}[0-9]{1,3})\b|\b(172\.(?:1[6-9]|2[0-9]|3[0-1])\.(?:[0-9]{1,3}\.)[0-9]{1,3})\b|\b(192\.168\.(?:[0-9]{1,3}\.)[0-9]{1,3})\b/.test(ip);
+}
+
+
 /**
  * Represents a function that listens for events and handles them accordingly.
  *