From e875f4f930049cec439c7996cd7f66e96c8d4e2e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BD=B1=E8=88=9E=E8=80=85?= <shadow1ng@qq.com>
Date: Fri, 3 Dec 2021 09:30:03 +0800
Subject: [PATCH] fix bug

---
 common/ParseIP.go | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/common/ParseIP.go b/common/ParseIP.go
index feb0f51..c838af2 100644
--- a/common/ParseIP.go
+++ b/common/ParseIP.go
@@ -23,9 +23,6 @@ var ParseIPErr = errors.New(" host parsing error\n" +
 	"192.168.1.1-255")
 
 func ParseIP(host string, filename string, nohosts ...string) (hosts []string, err error) {
-	if host == "" {
-		return
-	}
 	hosts = ParseIPs(host)
 	if filename != "" {
 		var filehost []string
@@ -57,7 +54,7 @@ func ParseIP(host string, filename string, nohosts ...string) (hosts []string, e
 		}
 	}
 	hosts = RemoveDuplicate(hosts)
-	if len(hosts) == 0 {
+	if len(hosts) == 0 && host != "" && filename != "" {
 		err = ParseIPErr
 	}
 	return