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 modbus

​

import (

    "encoding/binary"

    "fmt"

    "net"

    "net/url"

    "runtime"

    "strconv"

    "strings"

)

​

// main parsing

func parseParams(params *[]string) (*mbParams, error) {

    var p mbParams

    var err error

​

    if p.ReqType, err = getReqType((*params)[0]); err != nil {

        return nil, err

    }

​

    switch p.ReqType {

    case RTU, ASCII:

        if p.Serial, err = getSerial((*params)[0]); err != nil {

            return nil, err

        }

    case TCP:

        if p.NetAddr, err = getNetAddr((*params)[0]); err != nil {

            return nil, err

        }

    default:

        return nil, fmt.Errorf("Unsupported modbus protocol")

    }

​

    if p.SlaveID, err = getSlaveID(params, 1, p.ReqType); err != nil {

        return nil, err

    }

​

    if p.FuncID, err = getFuncID(params, 2); err != nil {

        return nil, err

    }

​

    if p.MemAddr, p.FuncID, err = getMemAddr(params, 3, p.FuncID); err != nil {

        return nil, err

    }

​

    if p.RetType, err = getRetType(params, 5, p.FuncID); err != nil {

        return nil, err

    }