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byte_stream.h
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byte_stream.h
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/*
* Byte stream functions
*
* Copyright (c) 2006-2009, Joachim Metz <forensics@hoffmannbv.nl>,
* Hoffmann Investigations.
*
* Refer to AUTHORS for acknowledgements.
*
* This software is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This software 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 Lesser General Public License
* along with this software. If not, see <http://www.gnu.org/licenses/>.
*/
#if !defined( _BYTE_STREAM_H )
#define _BYTE_STREAM_H
#include "common.h"
#include "types.h"
#if defined( __cplusplus )
extern "C" {
#endif
#define _BYTE_STREAM_ENDIAN_BIG (uint8_t) 'b'
#define _BYTE_STREAM_ENDIAN_LITTLE (uint8_t) 'l'
typedef union byte_stream_float32
{
float floating_point;
uint32_t integer;
} byte_stream_float32_t;
typedef union byte_stream_float64
{
double floating_point;
uint64_t integer;
} byte_stream_float64_t;
#define byte_stream_copy_to_uint16_big_endian( byte_stream, value ) \
value = ( byte_stream )[ 0 ]; \
value <<= 8; \
value |= ( byte_stream )[ 1 ];
#define byte_stream_copy_to_uint16_little_endian( byte_stream, value ) \
value = ( byte_stream )[ 1 ]; \
value <<= 8; \
value |= ( byte_stream )[ 0 ];
#define byte_stream_copy_to_uint32_big_endian( byte_stream, value ) \
value = ( byte_stream )[ 0 ]; \
value <<= 8; \
value |= ( byte_stream )[ 1 ]; \
value <<= 8; \
value |= ( byte_stream )[ 2 ]; \
value <<= 8; \
value |= ( byte_stream )[ 3 ];
#define byte_stream_copy_to_uint32_little_endian( byte_stream, value ) \
value = ( byte_stream )[ 3 ]; \
value <<= 8; \
value |= ( byte_stream )[ 2 ]; \
value <<= 8; \
value |= ( byte_stream )[ 1 ]; \
value <<= 8; \
value |= ( byte_stream )[ 0 ];
#define byte_stream_copy_to_uint64_big_endian( byte_stream, value ) \
value = ( byte_stream )[ 0 ]; \
value <<= 8; \
value |= ( byte_stream )[ 1 ]; \
value <<= 8; \
value |= ( byte_stream )[ 2 ]; \
value <<= 8; \
value |= ( byte_stream )[ 3 ]; \
value <<= 8; \
value |= ( byte_stream )[ 4 ]; \
value <<= 8; \
value |= ( byte_stream )[ 5 ]; \
value <<= 8; \
value |= ( byte_stream )[ 6 ]; \
value <<= 8; \
value |= ( byte_stream )[ 7 ];
#define byte_stream_copy_to_uint64_little_endian( byte_stream, value ) \
value = ( byte_stream )[ 7 ]; \
value <<= 8; \
value |= ( byte_stream )[ 6 ]; \
value <<= 8; \
value |= ( byte_stream )[ 5 ]; \
value <<= 8; \
value |= ( byte_stream )[ 4 ]; \
value <<= 8; \
value |= ( byte_stream )[ 3 ]; \
value <<= 8; \
value |= ( byte_stream )[ 2 ]; \
value <<= 8; \
value |= ( byte_stream )[ 1 ]; \
value <<= 8; \
value |= ( byte_stream )[ 0 ];
#define byte_stream_copy_from_uint16_big_endian( byte_stream, value ) \
( byte_stream )[ 0 ] = (uint8_t) ( ( value >> 8 ) & 0x0ff ); \
( byte_stream )[ 1 ] = (uint8_t) ( value & 0x0ff )
#define byte_stream_copy_from_uint16_little_endian( byte_stream, value ) \
( byte_stream )[ 1 ] = (uint8_t) ( ( value >> 8 ) & 0x0ff ); \
( byte_stream )[ 0 ] = (uint8_t) ( value & 0x0ff )
#define byte_stream_copy_from_uint32_big_endian( byte_stream, value ) \
( byte_stream )[ 0 ] = (uint8_t) ( ( value >> 24 ) & 0x0ff ); \
( byte_stream )[ 1 ] = (uint8_t) ( ( value >> 16 ) & 0x0ff ); \
( byte_stream )[ 2 ] = (uint8_t) ( ( value >> 8 ) & 0x0ff ); \
( byte_stream )[ 3 ] = (uint8_t) ( value & 0x0ff )
#define byte_stream_copy_from_uint32_little_endian( byte_stream, value ) \
( byte_stream )[ 3 ] = (uint8_t) ( ( value >> 24 ) & 0x0ff ); \
( byte_stream )[ 2 ] = (uint8_t) ( ( value >> 16 ) & 0x0ff ); \
( byte_stream )[ 1 ] = (uint8_t) ( ( value >> 8 ) & 0x0ff ); \
( byte_stream )[ 0 ] = (uint8_t) ( value & 0x0ff )
#define byte_stream_copy_from_uint64_big_endian( byte_stream, value ) \
( byte_stream )[ 0 ] = (uint8_t) ( ( value >> 56 ) & 0x0ff ); \
( byte_stream )[ 1 ] = (uint8_t) ( ( value >> 48 ) & 0x0ff ); \
( byte_stream )[ 2 ] = (uint8_t) ( ( value >> 40 ) & 0x0ff ); \
( byte_stream )[ 3 ] = (uint8_t) ( ( value >> 32 ) & 0x0ff ); \
( byte_stream )[ 4 ] = (uint8_t) ( ( value >> 24 ) & 0x0ff ); \
( byte_stream )[ 5 ] = (uint8_t) ( ( value >> 16 ) & 0x0ff ); \
( byte_stream )[ 6 ] = (uint8_t) ( ( value >> 8 ) & 0x0ff ); \
( byte_stream )[ 7 ] = (uint8_t) ( value & 0x0ff )
#define byte_stream_copy_from_uint64_little_endian( byte_stream, value ) \
( byte_stream )[ 7 ] = (uint8_t) ( ( value >> 56 ) & 0x0ff ); \
( byte_stream )[ 6 ] = (uint8_t) ( ( value >> 48 ) & 0x0ff ); \
( byte_stream )[ 5 ] = (uint8_t) ( ( value >> 40 ) & 0x0ff ); \
( byte_stream )[ 4 ] = (uint8_t) ( ( value >> 32 ) & 0x0ff ); \
( byte_stream )[ 3 ] = (uint8_t) ( ( value >> 24 ) & 0x0ff ); \
( byte_stream )[ 2 ] = (uint8_t) ( ( value >> 16 ) & 0x0ff ); \
( byte_stream )[ 1 ] = (uint8_t) ( ( value >> 8 ) & 0x0ff ); \
( byte_stream )[ 0 ] = (uint8_t) ( value & 0x0ff )
#if defined( __cplusplus )
}
#endif
#endif

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