From 7cb1f7e2c268c16a16955546cbac0b98a726b79c Mon Sep 17 00:00:00 2001
From: Owen <owen@txv.io>
Date: Tue, 9 Dec 2025 17:10:38 -0500
Subject: [PATCH] Working on ipv6 stuff

---
 util/util.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/util/util.go b/util/util.go
index 66f718b..58221c4 100644
--- a/util/util.go
+++ b/util/util.go
@@ -33,6 +33,19 @@ func ResolveDomain(domain string) (string, error) {
 		port = ""
 	}
 
+	// Check if host is already an IP address (IPv4 or IPv6)
+	// For IPv6, the host from SplitHostPort will already have brackets stripped
+	// but if there was no port, we need to handle bracketed IPv6 addresses
+	cleanHost := strings.TrimPrefix(strings.TrimSuffix(host, "]"), "[")
+	if ip := net.ParseIP(cleanHost); ip != nil {
+		// It's already an IP address, no need to resolve
+		ipAddr := ip.String()
+		if port != "" {
+			return net.JoinHostPort(ipAddr, port), nil
+		}
+		return ipAddr, nil
+	}
+
 	// Lookup IP addresses
 	ips, err := net.LookupIP(host)
 	if err != nil {