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.

**/

​

#include "zbxip.h"

​

#include "zbxnum.h"

​

/******************************************************************************

 *                                                                            *

 * Purpose: checks if the specified character is allowed whitespace character *

 *          that can be used before or after iprange definition               *

 *                                                                            *

 * Parameters: value - [IN] the character to check                            *

 *                                                                            *

 * Return value: SUCCEED - the value is whitespace character                  *

 *               FAIL    - otherwise                                          *

 *                                                                            *

 ******************************************************************************/

static int  iprange_is_whitespace_character(unsigned char value)

{

    switch (value)

    {

        case ' ':

        case '\r':

        case '\n':

        case '\t':

            return SUCCEED;

        default:

            return FAIL;

    }

}

​

/******************************************************************************

 *                                                                            *

 * Purpose: calculates the length of address data without trailing whitespace *

 *                                                                            *

 ******************************************************************************/

static size_t   iprange_address_length(const char *address)

{

    size_t      len;

    const char  *ptr;

​

    len = strlen(address);

    ptr = address + len - 1;

​

    while (0 < len && SUCCEED == iprange_is_whitespace_character(*ptr))

    {