---

#!/bin/bash
#Author：cosann
#Create Time：20220714
#Description：批量解析域名A记录和CNAME记录脚本

#初始化DNS服务器
dns1=$1
dns2=$2
dns3=$3

#初始化解析库
dns_file=$4

#DNS检测函数定义
function Ping_Stat_1 (){
    ping -w 1 $dns1 &> /dev/null
    if [ "`echo $?`" == 0 ]
    then
        return 100
    else
        return 200
    fi
}
function Ping_Stat_2 (){
    ping -w 1 $dns2 &> /dev/null
    if [ "`echo $?`" == 0 ]
    then
        return 100
    else
        return 200
    fi
}
function Ping_Stat_3 (){
    ping -w 1 $dns3 &> /dev/null
    if [ "`echo $?`" == 0 ]
    then
        return 100
    else
        return 200
    fi
}

echo -e "DNS连通性检测中，请稍等"

#DNS检测函数调用
Ping_Stat_1
code1=`echo $?`

Ping_Stat_2
code2=`echo $?`

Ping_Stat_3
code3=`echo $?`


#DNS解析控制及解析功能实现
if [ "$code1" == 100 ];then
    echo -e "DNS:$dns1 OK\n"
    echo -e "DNS1(IP:$dns1)"
    echo -e "域名\t\t\tA记录/CNAME 记录"
    cat $dns_file | while read line
    do
        dig @$dns1  $line A +short | sed "s/^/$line\t\t/g" 
    done
    echo -e "\n"
else
    echo -e "DNS:$dns1 NG" && echo -e "目标DNS网络不可达!"
fi

if [ "$code2" == 100 ];then
    echo -e "DNS:$dns2 OK\n"
    echo -e "DNS2(IP:$dns2)"
    echo -e "域名\t\t\tA记录/CNAME记录"
    cat $dns_file | while read line
    do
        dig @$dns2  $line A +short | sed "s/^/$line\t\t/g" 
    done
    echo -e "\n"
else
    echo -e "DNS:$dns2 NG" && echo -e "目标DNS网络不可达!"
fi 

if [ "$code3" == 100 ];then
    echo -e "DNS:$dns3 OK\n"
    echo -e "DNS3(IP:$dns3)"
    echo -e "域名\t\t\tA记录/CNAME记录"
    cat $dns_file | while read line
    do
        dig @$dns3  $line A +short  | sed "s/^/$line\t\t/g" 
    done
else
    echo -e "DNS:$dns3 NG" && echo -e "目标DNS网络不可达!"
fi