Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** 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 General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

package uptime

​

import (

    "bufio"

    "errors"

    "fmt"

    "strconv"

    "strings"

    "time"

​

    "git.zabbix.com/ap/plugin-support/std"

)

​

func getUptime() (uptime int, err error) {

    var file std.File

    if file, err = stdOs.Open("/proc/stat"); err != nil {

        err = fmt.Errorf("Cannot read boot time: %s", err.Error())

        return

    }

    defer file.Close()

​

    scanner := bufio.NewScanner(file)

    for scanner.Scan() {

        if strings.HasPrefix(scanner.Text(), "btime") {

            var boot int

            if boot, err = strconv.Atoi(scanner.Text()[6:]); err != nil {

                return

            }

            return int(time.Now().Unix()) - boot, nil

        }

    }

​

    return 0, errors.New("Cannot locate boot time")

}