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 file

​

import (

    "errors"

    "fmt"

    "math"

    "os"

    "regexp"

    "strconv"

    "time"

)

​

const MAX_BUFFER_LEN = 65536

​

func (p *Plugin) exportRegmatch(params []string, timeout int) (result interface{}, err error) {

    var startline, endline, curline uint64

​

    start := time.Now()

​

    if len(params) > 5 {

        return nil, errors.New("Too many parameters.")

    }

    if len(params) < 1 || "" == params[0] {

        return nil, errors.New("Invalid first parameter.")

    }

    if len(params) < 2 || "" == params[1] {

        return nil, errors.New("Invalid second parameter.")

    }

​

    var encoding string

    if len(params) > 2 {

        encoding = params[2]

    }

​

    if len(params) < 4 || "" == params[3] {

        startline = 0

    } else {

        startline, err = strconv.ParseUint(params[3], 10, 32)

        if err != nil {

            return nil, errors.New("Invalid fourth parameter.")

        }

    }

    if len(params) < 5 || "" == params[4] {

        endline = math.MaxUint64

    } else {

        endline, err = strconv.ParseUint(params[4], 10, 32)

        if err != nil {

            return nil, errors.New("Invalid fifth parameter.")

        }