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 envied 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 "global.h"

​

#include "embed.h"

#include "duktape.h"

#include "base64.h"

#include "zbxcrypto.h"

#include "zbxjson.h"

​

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

 *                                                                            *

 * Purpose: export duktape data at the index into buffer                      *

 *                                                                            *

 * Return value: allocated buffer with exported data or NULL on error         *

 *                                                                            *

 * Comments: Throws an error:                                                 *

 *               - if the top value at ctx value stack is non buffer object   *

 *               - if the value stack is empty                                *

 *           The returned buffer must be freed by the caller.                 *

 *                                                                            *

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

char    *es_get_buffer_dyn(duk_context *ctx, int index, duk_size_t *len)

{

    duk_int_t   type;

    const char  *ptr;

    char        *buf = NULL;

​

    *len = 0;

​

    type = duk_get_type(ctx, index);

​

    switch (type)

    {

        case DUK_TYPE_BUFFER:

        case DUK_TYPE_OBJECT:

            ptr = duk_require_buffer_data(ctx, index, len);

            buf = zbx_malloc(NULL, *len);

            memcpy(buf, ptr, *len);

            break;

        case DUK_TYPE_UNDEFINED:

        case DUK_TYPE_NONE:

        case DUK_TYPE_NULL:

            break;

        default:

            if (SUCCEED == es_duktape_string_decode(duk_to_string(ctx, index), &buf))