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"

    "io"

    "os"

    "strings"

)

​

func (p *Plugin) find_CR_LF_Szbyte(encoding string) (cr []byte, lf []byte, szbyte int) {

    /* default is single-byte character set */

    cr = []byte("\r")

    lf = []byte("\n")

    szbyte = 1

​

    if "" != encoding {

        if strings.EqualFold(encoding, "UNICODE") || strings.EqualFold(encoding, "UNICODELITTLE") ||

            strings.EqualFold(encoding, "UTF-16") || strings.EqualFold(encoding, "UTF-16LE") ||

            strings.EqualFold(encoding, "UTF16") || strings.EqualFold(encoding, "UTF16LE") ||

            strings.EqualFold(encoding, "UCS-2") || strings.EqualFold(encoding, "UCS-2LE") {

            cr = []byte("\r\x00")

            lf = []byte("\n\x00")

            szbyte = 2

        } else if strings.EqualFold(encoding, "UNICODEBIG") || strings.EqualFold(encoding, "UNICODEFFFE") ||

            strings.EqualFold(encoding, "UTF-16BE") || strings.EqualFold(encoding, "UTF16BE") ||

            strings.EqualFold(encoding, "UCS-2BE") {

            cr = []byte("\x00\r")

            lf = []byte("\x00\n")

            szbyte = 2

        } else if strings.EqualFold(encoding, "UTF-32") || strings.EqualFold(encoding, "UTF-32LE") ||

            strings.EqualFold(encoding, "UTF32") || strings.EqualFold(encoding, "UTF32LE") {

            cr = []byte("\r\x00\x00\x00")

            lf = []byte("\n\x00\x00\x00")

​

            szbyte = 4

        } else if strings.EqualFold(encoding, "UTF-32BE") || strings.EqualFold(encoding, "UTF32BE") {

            cr = []byte("\x00\x00\x00\r")

            lf = []byte("\x00\x00\x00\n")

            szbyte = 4

        }

    }

​

    return cr, lf, szbyte

}

​

func (p *Plugin) bytesCompare(a []byte, b []byte, szbyte int, aStartOffset int, bStartOffset int) bool {

    ee := true

    for ii := 0; ii < szbyte; ii++ {