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 "zbxvariant.h"

​

#include "zbxnum.h"

#include "zbxstr.h"

​

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

 *                                                                            *

 * Purpose: converts variant value to type compatible with requested value    *

 *          type                                                              *

 *                                                                            *

 * Parameters: value         - [IN/OUT] the value to convert                  *

 *             value_type    - [IN] the target value type                     *

 *             dbl_precision - [IN] double precision option                   *

 *             errmsg        - [OUT] the error message                        *

 *                                                                            *

 * Return value: SUCCEED - Value conversion was successful.                   *

 *               FAIL    - Otherwise                                          *

 *                                                                            *

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

int zbx_variant_to_value_type(zbx_variant_t *value, unsigned char value_type, int dbl_precision, char **errmsg)

{

    int ret;

​

    zbx_free(*errmsg);

​

    switch (value_type)

    {

        case ITEM_VALUE_TYPE_FLOAT:

            if (SUCCEED == (ret = zbx_variant_convert(value, ZBX_VARIANT_DBL)))

            {

                if (FAIL == (ret = zbx_validate_value_dbl(value->data.dbl, dbl_precision)))

                {

                    char    buffer[ZBX_MAX_DOUBLE_LEN + 1];

​

                    *errmsg = zbx_dsprintf(NULL, "Value %s is too small or too large.",

                            zbx_print_double(buffer, sizeof(buffer), value->data.dbl));

                }

            }

            break;

        case ITEM_VALUE_TYPE_UINT64:

            ret = zbx_variant_convert(value, ZBX_VARIANT_UI64);

            break;

        case ITEM_VALUE_TYPE_STR:

        case ITEM_VALUE_TYPE_TEXT: