From 9cf656029daa8aa1bb5b8eab5147684189615277 Mon Sep 17 00:00:00 2001
From: DOCCA0 <2947323341@qq.com>
Date: Sun, 12 Jun 2022 21:57:43 +0800
Subject: [PATCH] =?UTF-8?q?ipv6=E6=9C=AC=E5=9C=B0=E5=9C=B0=E5=9D=80?=
 =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E5=9B=BE=E7=89=87=E6=8A=A5=E9=94=99?=
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---
 pkg/util/iploc/iploc.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkg/util/iploc/iploc.go b/pkg/util/iploc/iploc.go
index 0a103738..7a0e95d0 100644
--- a/pkg/util/iploc/iploc.go
+++ b/pkg/util/iploc/iploc.go
@@ -21,7 +21,12 @@ const (
 
 // Find get country and city base ip
 func Find(ip string) (string, string) {
-	offset := searchIndex(binary.BigEndian.Uint32(net.ParseIP(ip).To4()))
+	// If ip is "::1", To4 returns nil.
+	to4 := net.ParseIP(ip).To4()
+	if to4 == nil {
+		to4 = net.ParseIP("127.0.0.1").To4()
+	}
+	offset := searchIndex(binary.BigEndian.Uint32(to4))
 	if offset <= 0 {
 		return "", ""
 	}