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143 lines
5.1 KiB
143 lines
5.1 KiB
/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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#ifndef ZABBIX_SERIALIZE_H
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#define ZABBIX_SERIALIZE_H
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#include "zbxcommon.h"
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#define zbx_serialize_prepare_str(len, str) \
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do \
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{ \
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str##_len = (NULL != str ? (zbx_uint32_t)strlen(str) + 1 : 0); \
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len += str##_len + (zbx_uint32_t)sizeof(zbx_uint32_t); \
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} \
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while(0)
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#define zbx_serialize_prepare_str_len(len, str, str_len) \
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do \
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{ \
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str_len = (NULL != str ? (zbx_uint32_t)strlen(str) + 1 : 0); \
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len += str_len + (zbx_uint32_t)sizeof(zbx_uint32_t); \
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} \
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while(0)
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#define zbx_serialize_prepare_vector_uint64_len(len, vector_uint64, vector_uint64_len) \
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do \
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{ \
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vector_uint64_len = (zbx_uint32_t)vector_uint64.values_num * (zbx_uint32_t)sizeof(zbx_uint64_t); \
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len += vector_uint64_len + (zbx_uint32_t)sizeof(zbx_uint32_t); \
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} \
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while(0)
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#define zbx_serialize_prepare_value(len, value) do { len += (zbx_uint32_t)sizeof(value); } while(0)
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#define zbx_serialize_uint64(buffer, value) \
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(memcpy(buffer, (const zbx_uint64_t *)&value, sizeof(zbx_uint64_t)), sizeof(zbx_uint64_t))
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#define zbx_serialize_int(buffer, value) (memcpy(buffer, (const int *)&value, sizeof(int)), sizeof(int))
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#define zbx_serialize_short(buffer, value) (memcpy(buffer, (const short *)&value, sizeof(short)), sizeof(short))
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#define zbx_serialize_double(buffer, value) (memcpy(buffer, (const double *)&value, sizeof(double)), sizeof(double))
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#define zbx_serialize_char(buffer, value) (*buffer = (char)value, sizeof(char))
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#define zbx_serialize_str_null(buffer) (memset(buffer, 0, sizeof(zbx_uint32_t)), sizeof(zbx_uint32_t))
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#define zbx_serialize_str(buffer, value, len) \
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( \
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0 == len ? zbx_serialize_str_null(buffer) : \
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( \
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memcpy(buffer, (zbx_uint32_t *)&len, sizeof(zbx_uint32_t)), \
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memcpy(buffer + sizeof(zbx_uint32_t), value, len), \
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len + sizeof(zbx_uint32_t) \
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) \
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)
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#define zbx_serialize_vector_uint64(buffer, vector_uint64, len) \
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( \
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0 == len ? zbx_serialize_str_null(buffer) : \
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( \
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memcpy(buffer, (zbx_uint32_t *)&len, sizeof(zbx_uint32_t)), \
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memcpy(buffer + sizeof(zbx_uint32_t), vector_uint64.values, len), \
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len + sizeof(zbx_uint32_t) \
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) \
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)
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#define zbx_serialize_value(buffer, value) (memcpy(buffer, &value, sizeof(value)), sizeof(value))
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/* deserialization of primitive types */
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#define zbx_deserialize_uint64(buffer, value) \
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(memcpy(value, buffer, sizeof(zbx_uint64_t)), sizeof(zbx_uint64_t))
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#define zbx_deserialize_int(buffer, value) \
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(memcpy(value, buffer, sizeof(int)), sizeof(int))
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#define zbx_deserialize_short(buffer, value) \
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(memcpy(value, buffer, sizeof(short)), sizeof(short))
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#define zbx_deserialize_char(buffer, value) \
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(*value = *buffer, sizeof(char))
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#define zbx_deserialize_double(buffer, value) \
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(memcpy(value, buffer, sizeof(double)), sizeof(double))
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#define zbx_deserialize_str(buffer, value, value_len) \
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( \
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memcpy(&value_len, buffer, sizeof(zbx_uint32_t)), \
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0 < value_len ? ( \
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*value = (char *)zbx_malloc(NULL, (zbx_uint64_t)value_len + 1), \
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memcpy(*(value), buffer + sizeof(zbx_uint32_t), value_len), \
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(*value)[value_len] = '\0' \
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) : (*value = NULL, 0), \
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value_len + sizeof(zbx_uint32_t) \
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)
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#define zbx_deserialize_vector_uint64(buffer, vector_uint64, value_len) \
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( \
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memcpy(&value_len, buffer, sizeof(zbx_uint32_t)), \
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0 < value_len ? \
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zbx_vector_uint64_append_array(vector_uint64, \
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(const zbx_uint64_t *)(buffer + sizeof(zbx_uint32_t)), \
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(int)(value_len / sizeof(zbx_uint64_t))) \
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: (void)0, \
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value_len + sizeof(zbx_uint32_t) \
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)
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#define zbx_deserialize_value(buffer, value) \
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(memcpy(value, buffer, sizeof(*value)), sizeof(*value))
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/* length prefixed binary data */
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#define zbx_deserialize_bin(buffer, value, value_len) \
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( \
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memcpy(&value_len, buffer, sizeof(zbx_uint32_t)), \
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*value = (void *)zbx_malloc(NULL, value_len + sizeof(zbx_uint32_t)), \
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memcpy(*(value), buffer, value_len + sizeof(zbx_uint32_t)), \
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value_len + sizeof(zbx_uint32_t) \
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)
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/* complex serialization/deserialization functions */
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zbx_uint32_t zbx_serialize_uint31_compact(unsigned char *ptr, zbx_uint32_t value);
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zbx_uint32_t zbx_deserialize_uint31_compact(const unsigned char *ptr, zbx_uint32_t *value);
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#endif /* ZABBIX_SERIALIZE_H */
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