From 766b7c3a604787604e5e4d671ff0033b9046cce9 Mon Sep 17 00:00:00 2001
From: CN_SZTL <cnsztl@gmail.com>
Date: Wed, 4 Mar 2020 12:18:15 +0800
Subject: [PATCH] luci-app-serverchan: sync with upstream source

---
 .../luci-app-serverchan/root/usr/bin/serverchan/serverchan     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package/ctcgfw/luci-app-serverchan/root/usr/bin/serverchan/serverchan b/package/ctcgfw/luci-app-serverchan/root/usr/bin/serverchan/serverchan
index ec942af533..743a5f95e2 100755
--- a/package/ctcgfw/luci-app-serverchan/root/usr/bin/serverchan/serverchan
+++ b/package/ctcgfw/luci-app-serverchan/root/usr/bin/serverchan/serverchan
@@ -445,7 +445,8 @@ function up(){
 if [ ! -f "${dir}ipAddress" ] ; then > ${dir}ipAddress;fi
 if [ "$1" ] ;then
 	# 如果 ipAddress 文件中存在此ip，则跳过，待断线检测
-	if ( ! echo ${dir}ipAddress | grep -q -w $1 ) ; then
+	local ip=`cat ${dir}ipAddress | grep -w $1`
+	if [ -z "$ip" ] ; then
 		local ip_mac=`getmac $1`
 		local ip_name=`getname $1 $ip_mac`