Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

** See the GNU Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

package dns

​

import (

    "errors"

    "fmt"

    "net"

    "strconv"

    "strings"

    "time"

​

    "github.com/miekg/dns"

    "golang.zabbix.com/sdk/errs"

    "golang.zabbix.com/sdk/plugin"

    "golang.zabbix.com/sdk/zbxerr"

)

​

const (

    base10 = 10

​

    tcpProtocol = "tcp"

    udpProtocol = "udp"

​

    inAddrSuffix   = ".in-addr.arpa"

    inAddrV6Suffix = ".ip6.arpa"

)

​

const (

    noneParam = iota

    firstParam

    secondParam

    thirdParam

    fourthParam

    fifthParam

    sixthParam

    seventhParam

)

​

var impl Plugin

​

var dnsTypes = map[string]uint16{

    "ANY":   dns.TypeANY,

    "A":     dns.TypeA,

    "NS":    dns.TypeNS,

    "CNAME": dns.TypeCNAME,

    "MB":    dns.TypeMB,

    "MG":    dns.TypeMG,

    "MR":    dns.TypeMR,

    "PTR":   dns.TypePTR,

    "MD":    dns.TypeMD,