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 "zbxcrypto.h"

​

#include "zbxcommon.h"

​

static void *hmac_hash_init(zbx_crypto_hash_t type)

{

    void    *ctx;

​

    switch (type)

    {

        case ZBX_HASH_MD5:

            ctx = zbx_malloc(NULL, sizeof(md5_state_t));

            zbx_md5_init((md5_state_t *)ctx);

            break;

        case ZBX_HASH_SHA256:

            ctx = zbx_malloc(NULL, sizeof(sha256_ctx));

            zbx_sha256_init((sha256_ctx *)ctx);

            break;

        default:

            return NULL;

    }

​

    return ctx;

}

​

static void hmac_hash_append(zbx_crypto_hash_t type, void *ctx, const char *text, size_t text_len)

{

    switch (type)

    {

        case ZBX_HASH_MD5:

            zbx_md5_append((md5_state_t *)(ctx), (const md5_byte_t *)text, text_len);

            break;

        case ZBX_HASH_SHA256:

            zbx_sha256_process_bytes(text, text_len, (sha256_ctx *)ctx);

            break;

        default:

            return;

    }

}

​

static void hmac_hash_finish(zbx_crypto_hash_t type, void *ctx, char *out)

{

    switch (type)

    {

        case ZBX_HASH_MD5:

            zbx_md5_finish((md5_state_t *)(ctx), (md5_byte_t *)out);

            break;

        case ZBX_HASH_SHA256:

            zbx_sha256_finish((sha256_ctx *)ctx, out);