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/*
** 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/>.
**/
#ifndef ZABBIX_SERIALIZE_H
#define ZABBIX_SERIALIZE_H
#include "zbxcommon.h"
#define zbx_serialize_prepare_str(len, str) \
do \
{ \
str##_len = (NULL != str ? (zbx_uint32_t)strlen(str) + 1 : 0); \
len += str##_len + (zbx_uint32_t)sizeof(zbx_uint32_t); \
} \
while(0)
#define zbx_serialize_prepare_str_len(len, str, str_len) \
do \
{ \
str_len = (NULL != str ? (zbx_uint32_t)strlen(str) + 1 : 0); \
len += str_len + (zbx_uint32_t)sizeof(zbx_uint32_t); \
} \
while(0)
#define zbx_serialize_prepare_vector_uint64_len(len, vector_uint64, vector_uint64_len) \
do \
{ \
vector_uint64_len = (zbx_uint32_t)vector_uint64->values_num * (zbx_uint32_t)sizeof(zbx_uint64_t); \
len += vector_uint64_len + (zbx_uint32_t)sizeof(zbx_uint32_t); \
} \
while(0)
#define zbx_serialize_prepare_value(len, value) do { len += (zbx_uint32_t)sizeof(value); } while(0)
#define zbx_serialize_uint64(buffer, value) \
(memcpy(buffer, (const zbx_uint64_t *)&value, sizeof(zbx_uint64_t)), sizeof(zbx_uint64_t))
#define zbx_serialize_int(buffer, value) (memcpy(buffer, (const int *)&value, sizeof(int)), sizeof(int))
#define zbx_serialize_short(buffer, value) (memcpy(buffer, (const short *)&value, sizeof(short)), sizeof(short))
#define zbx_serialize_double(buffer, value) (memcpy(buffer, (const double *)&value, sizeof(double)), sizeof(double))
#define zbx_serialize_char(buffer, value) (*buffer = (char)value, sizeof(char))
#define zbx_serialize_str_null(buffer) (memset(buffer, 0, sizeof(zbx_uint32_t)), sizeof(zbx_uint32_t))
#define zbx_serialize_str(buffer, value, len) \
( \
0 == len ? zbx_serialize_str_null(buffer) : \
( \
memcpy(buffer, (zbx_uint32_t *)&len, sizeof(zbx_uint32_t)), \
memcpy(buffer + sizeof(zbx_uint32_t), value, len), \
len + sizeof(zbx_uint32_t) \
) \
)
#define zbx_serialize_vector_uint64(buffer, vector_uint64, len) \
( \
0 == len ? zbx_serialize_str_null(buffer) : \
( \
memcpy(buffer, (zbx_uint32_t *)&len, sizeof(zbx_uint32_t)), \
memcpy(buffer + sizeof(zbx_uint32_t), vector_uint64->values, len), \
len + sizeof(zbx_uint32_t) \
) \
)
#define zbx_serialize_value(buffer, value) (memcpy(buffer, &value, sizeof(value)), sizeof(value))
/* deserialization of primitive types */
#define zbx_deserialize_uint64(buffer, value) \
(memcpy(value, buffer, sizeof(zbx_uint64_t)), sizeof(zbx_uint64_t))
#define zbx_deserialize_int(buffer, value) \
(memcpy(value, buffer, sizeof(int)), sizeof(int))
#define zbx_deserialize_short(buffer, value) \
(memcpy(value, buffer, sizeof(short)), sizeof(short))
#define zbx_deserialize_char(buffer, value) \
(*value = *buffer, sizeof(char))
#define zbx_deserialize_double(buffer, value) \
(memcpy(value, buffer, sizeof(double)), sizeof(double))
#define zbx_deserialize_str(buffer, value, value_len) \
( \
memcpy(&value_len, buffer, sizeof(zbx_uint32_t)), \
0 < value_len ? ( \
*value = (char *)zbx_malloc(NULL, (zbx_uint64_t)value_len + 1), \
memcpy(*(value), buffer + sizeof(zbx_uint32_t), value_len), \
(*value)[value_len] = '\0' \
) : (*value = NULL, 0), \
value_len + sizeof(zbx_uint32_t) \
)
#define zbx_deserialize_vector_uint64(buffer, vector_uint64, value_len) \
( \
memcpy(&value_len, buffer, sizeof(zbx_uint32_t)), \
0 < value_len ? \
zbx_vector_uint64_append_array(vector_uint64, \
(const zbx_uint64_t *)(buffer + sizeof(zbx_uint32_t)), \
(int)(value_len / sizeof(zbx_uint64_t))) \
: (void)0, \
value_len + sizeof(zbx_uint32_t) \
)
#define zbx_deserialize_value(buffer, value) \
(memcpy(value, buffer, sizeof(*value)), sizeof(*value))
/* length prefixed binary data */
#define zbx_deserialize_bin(buffer, value, value_len) \
( \
memcpy(&value_len, buffer, sizeof(zbx_uint32_t)), \
*value = (void *)zbx_malloc(NULL, value_len + sizeof(zbx_uint32_t)), \
memcpy(*(value), buffer, value_len + sizeof(zbx_uint32_t)), \
value_len + sizeof(zbx_uint32_t) \
)
/* complex serialization/deserialization functions */
zbx_uint32_t zbx_serialize_uint31_compact(unsigned char *ptr, zbx_uint32_t value);
zbx_uint32_t zbx_deserialize_uint31_compact(const unsigned char *ptr, zbx_uint32_t *value);
#endif /* ZABBIX_SERIALIZE_H */
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