From d35a62e05a9ea08d573d8dabdf0ecf3bf16b88c9 Mon Sep 17 00:00:00 2001
From: smin-k <a7965344@gmail.com>
Date: Thu, 9 May 2024 16:34:17 +0900
Subject: [PATCH] p2p/enode: fix ipv6 address used as extip results

---
 p2p/enode/node.go | 37 +++++++++++++++++--------------------
 1 file changed, 17 insertions(+), 20 deletions(-)

diff --git a/p2p/enode/node.go b/p2p/enode/node.go
index f2d1de30f9..cb35842088 100644
--- a/p2p/enode/node.go
+++ b/p2p/enode/node.go
@@ -101,26 +101,23 @@ func (n *Node) Load(k enr.Entry) error {
 
 // IP returns the IP address of the node. This prefers IPv4 addresses.
 func (n *Node) IP() net.IP {
-    var (
-        ip4 enr.IPv4
-        ip6 enr.IPv6
-    )
-    if n.Load(&ip4) == nil {
-        ipv4Addr := net.IP(ip4)
-        if !ipv4Addr.IsLoopback() {
-            return ipv4Addr
-        }
-    }
-    if n.Load(&ip6) == nil {
-        return net.IP(ip6)
-    }
-    if n.Load(&ip4) == nil {
-        ipv4Addr := net.IP(ip4)
-        if ipv4Addr.IsLoopback() {
-            return ipv4Addr
-        }
-    }
-    return nil
+	var (
+		ip4 enr.IPv4
+		ip6 enr.IPv6
+	)
+	if n.Load(&ip4) == nil {
+		ipv4Addr := net.IP(ip4)
+		if !ipv4Addr.IsLoopback() {
+			return ipv4Addr
+		}
+	}
+	if n.Load(&ip6) == nil {
+		return net.IP(ip6)
+	}
+	if ipv4Addr := net.IP(ip4); ipv4Addr.IsLoopback() {
+		return ipv4Addr
+	}
+	return nil
 }