mirror of
https://github.com/libyal/libexe
synced 2026-06-08 15:29:55 +00:00
Joachim Metz
258 lines
10 KiB
C
258 lines
10 KiB
C
/*
|
|
* Byte stream functions
|
|
*
|
|
* Copyright (C) 2011-2016, Joachim Metz <joachim.metz@gmail.com>
|
|
*
|
|
* 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_HOST_IS_ENDIAN_BIG ( *((uint32_t *) "\x01\x02\x03\x04" ) == 0x01020304 )
|
|
#define _BYTE_STREAM_HOST_IS_ENDIAN_LITTLE ( *((uint32_t *) "\x01\x02\x03\x04" ) == 0x04030201 )
|
|
#define _BYTE_STREAM_HOST_IS_ENDIAN_MIDDLE ( *((uint32_t *) "\x01\x02\x03\x04" ) == 0x02010403 )
|
|
|
|
#define _BYTE_STREAM_ENDIAN_BIG (uint8_t) 'b'
|
|
#define _BYTE_STREAM_ENDIAN_LITTLE (uint8_t) 'l'
|
|
#define _BYTE_STREAM_ENDIAN_MIDDLE (uint8_t) 'm'
|
|
|
|
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 ) */
|
|
|