From 8ba4ac15acb9f6326e94ebcb57ab2d120099b969 Mon Sep 17 00:00:00 2001
From: Shelikhoo <xiaokangwang@outlook.com>
Date: Sun, 18 Apr 2021 23:45:51 +0100
Subject: [PATCH] fixed a panic issue caused by not checking type of input
 address in fake dns

---
 app/dns/fakedns/fake.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/dns/fakedns/fake.go b/app/dns/fakedns/fake.go
index c95120d46..8aa6624a2 100644
--- a/app/dns/fakedns/fake.go
+++ b/app/dns/fakedns/fake.go
@@ -24,6 +24,9 @@ type Holder struct {
 }
 
 func (fkdns *Holder) IsIPInIPPool(ip net.Address) bool {
+	if ip.Family().IsDomain() {
+		return false
+	}
 	return fkdns.ipRange.Contains(ip.IP())
 }
 
@@ -139,6 +142,9 @@ type HolderMulti struct {
 }
 
 func (h *HolderMulti) IsIPInIPPool(ip net.Address) bool {
+	if ip.Family().IsDomain() {
+		return false
+	}
 	for _, v := range h.holders {
 		if v.IsIPInIPPool(ip) {
 			return true