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/>.

**/

​

#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] character to check                                *

 *                                                                            *

 * Return value: SUCCEED - 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 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))

    {

        ptr--;

        len--;

    }

​

    return len;