refactor(set_adv_config): replace recursion with while loop

scripts/menus/2_settings.sh

@@ -281,22 +281,25 @@ set_redir_mod() {
     done
 }
 
-set_adv_config() { #端口设置
+inputport() {
+    read -p "请输入端口号(1-65535) > " portx
+    . "$CRASHDIR"/menus/check_port.sh # 加载测试函数
+    if check_port "$portx"; then
+        setconfig "$xport" "$portx"
+        echo -e "\033[32m设置成功！！！\033[0m"
+    else
+        echo -e "\033[31m设置失败！！！\033[0m"
+    fi
+    sleep 1
+}
+
+# 端口设置
+set_adv_config() {
+    while true; do
         . "$CFG_PATH" >/dev/null
         [ -z "$secret" ] && secret=未设置
         [ -z "$table" ] && table=100
         [ -z "$authentication" ] && auth=未设置 || auth=******
-    inputport() {
-        read -p "请输入端口号(1-65535) > " portx
-		. "$CRASHDIR"/menus/check_port.sh #加载测试函数
-        if check_port "$portx"; then
-            setconfig "$xport" "$portx"
-            echo -e "\033[32m设置成功！！！\033[0m"
-			set_adv_config
-		else
-			sleep 1
-		fi	
-    }
         echo "-----------------------------------------------"
         echo -e " 1 修改Http/Sock5端口：	\033[36m$mix_port\033[0m"
         echo -e " 2 设置Http/Sock5密码：	\033[36m$auth\033[0m"
@@ -309,7 +312,9 @@ set_adv_config() { #端口设置
         echo -e " 0 返回上级菜单"
         read -p "请输入对应数字 > " num
         case "$num" in
-    0) ;;
+        "" | 0)
+            break
+            ;;
         1)
             xport=mix_port
             inputport
@@ -324,7 +329,7 @@ set_adv_config() { #端口设置
             if [ "$input" = "0" ]; then
                 authentication=""
                 setconfig authentication
-            echo 密码已移除！
+                echo "密码已移除！"
             else
                 if [ "$local_proxy" = "ON" -a "$local_type" = "环境变量" ]; then
                     echo "-----------------------------------------------"
@@ -340,7 +345,6 @@ set_adv_config() { #端口设置
                     fi
                 fi
             fi
-        set_adv_config
             ;;
         3)
             xport=redir_port
@@ -361,7 +365,6 @@ set_adv_config() { #端口设置
                 setconfig secret $secret
                 echo -e "\033[32m设置成功！！！\033[0m"
             fi
-        set_adv_config
             ;;
         8)
             echo "-----------------------------------------------"
@@ -382,7 +385,6 @@ set_adv_config() { #端口设置
                 echo -e "\033[31m输入错误，请仔细核对！！！\033[0m"
             fi
             sleep 1
-        set_adv_config
             ;;
         9)
             echo "-----------------------------------------------"
@@ -393,13 +395,16 @@ set_adv_config() { #端口设置
                 setconfig table "$table"
                 echo -e "\033[32m设置成功！！！\033[0m"
             fi
-        set_adv_config
             ;;
         *)
             errornum
+            sleep 1
+            break
             ;;
         esac
+    done
 }
+
 set_firewall_area() { #路由范围设置
     [ -z "$vm_redir" ] && vm_redir='OFF'
     echo "-----------------------------------------------"