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libyal-libexe/common/byte_stream.h
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Joachim Metz 04b0b41273 Worked on tests and changes for CI tests
2026-06-01 21:59:03 +02:00

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/*
* Byte stream functions
*
* Copyright (C) 2011-2026, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This program 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 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 General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://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 'b'
#define _BYTE_STREAM_ENDIAN_LITTLE 'l'
#define _BYTE_STREAM_ENDIAN_MIDDLE 'm'
#undef _BYTE_STREAM_HOST_BYTE_ORDER
#if defined( __BYTE_ORDER__ ) && defined( __ORDER_LITTLE_ENDIAN__ ) && defined( __ORDER_BIG_ENDIAN__ ) && defined( __ORDER_PDP_ENDIAN__ )
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_BIG
#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_LITTLE
#elif __BYTE_ORDER__ == __ORDER_PDP_ENDIAN__
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_MIDDLE
#endif
#elif defined( __linux__ ) || defined( __GLIBC__ )
#include <endian.h>
#if defined( __BYTE_ORDER ) && defined( __LITTLE_ENDIAN ) && defined( __BIG_ENDIAN ) && defined( __PDP_ENDIAN )
#if __BYTE_ORDER == __BIG_ENDIAN
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_BIG
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_LITTLE
#elif __BYTE_ORDER == __PDP_ENDIAN
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_MIDDLE
#endif
#endif
#elif defined( __APPLE__ ) || defined( __FreeBSD__ ) || defined( __OpenBSD__ ) || defined( __NetBSD__ )
#include <machine/endian.h>
#if defined( BYTE_ORDER ) && defined( LITTLE_ENDIAN ) && defined( BIG_ENDIAN )
#if BYTE_ORDER == BIG_ENDIAN
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_BIG
#elif BYTE_ORDER == LITTLE_ENDIAN
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_LITTLE
#endif
#endif
#elif defined( _MSC_VER ) || defined( _WIN32 )
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_LITTLE
#elif defined( __hppa__ ) || defined( __m68k__ ) || defined( __mips__ ) || defined( __powerpc__ ) || defined( __sparc__ )
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_BIG
#elif defined( __i386__ ) || defined( __x86_64__ ) || defined( __arm__ ) || defined( __aarch64__ )
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_LITTLE
#elif defined( __pdp11__ )
#define _BYTE_STREAM_HOST_BYTE_ORDER _BYTE_STREAM_ENDIAN_MIDDLE
#endif
#if !defined( _BYTE_STREAM_HOST_BYTE_ORDER )
#error "Unable to determine host byte-order"
#endif
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_uint24_big_endian( byte_stream, value ) \
( value ) = ( byte_stream )[ 0 ]; \
( value ) <<= 8; \
( value ) |= ( byte_stream )[ 1 ]; \
( value ) <<= 8; \
( value ) |= ( byte_stream )[ 2 ];
#define byte_stream_copy_to_uint24_little_endian( byte_stream, value ) \
( value ) = ( byte_stream )[ 2 ]; \
( value ) <<= 8; \
( 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_uint48_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 ];
#define byte_stream_copy_to_uint48_little_endian( byte_stream, value ) \
( 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_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_uint24_big_endian( byte_stream, value ) \
( byte_stream )[ 0 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \
( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \
( byte_stream )[ 2 ] = (uint8_t) ( ( value ) & 0x0ff )
#define byte_stream_copy_from_uint24_little_endian( byte_stream, value ) \
( 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_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_uint48_big_endian( byte_stream, value ) \
( byte_stream )[ 0 ] = (uint8_t) ( ( ( value ) >> 40 ) & 0x0ff ); \
( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 32 ) & 0x0ff ); \
( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 24 ) & 0x0ff ); \
( byte_stream )[ 3 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \
( byte_stream )[ 4 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \
( byte_stream )[ 5 ] = (uint8_t) ( ( value ) & 0x0ff )
#define byte_stream_copy_from_uint48_little_endian( byte_stream, value ) \
( 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 )
#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 )
#define byte_stream_bit_rotate_left_8bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 8 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_right_8bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 8 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_left_16bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 16 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_right_16bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 16 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_left_32bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 32 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_right_32bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 32 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_left_64bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 64 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_right_64bit( byte_stream, number_of_bits ) \
( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 64 - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_left( value, number_of_bits ) \
( ( ( value ) << ( number_of_bits ) ) | ( ( value ) >> ( ( sizeof( value ) << 3 ) - ( number_of_bits ) ) ) )
#define byte_stream_bit_rotate_right( value, number_of_bits ) \
( ( ( value ) >> ( number_of_bits ) ) | ( ( value ) << ( ( sizeof( value ) << 3 ) - ( number_of_bits ) ) ) )
#if defined( __cplusplus )
}
#endif
#endif /* !defined( _BYTE_STREAM_H ) */
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