mhd_bithelpers.h File Reference

macros for bits manipulations More...

#include "mhd_options.h"
#include <stdint.h>
#include "mhd_byteorder.h"

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Macros
#define	__has_builtin(x)   0
#define	_MHD_BYTES_SWAP32(value32)
#define	_MHD_BYTES_SWAP64(value64)
#define	_MHD_PUT_64BIT_LE_SLOW(addr, value64)
#define	_MHD_PUT_64BIT_LE(addr, value64)
#define	_MHD_PUT_64BIT_LE_UNALIGNED   1
#define	_MHD_PUT_32BIT_LE(addr, value32)
#define	_MHD_PUT_32BIT_LE_UNALIGNED   1
#define	_MHD_GET_32BIT_LE(addr)
#define	_MHD_GET_32BIT_LE_UNALIGNED   1
#define	_MHD_PUT_64BIT_BE_SLOW(addr, value64)
#define	_MHD_PUT_64BIT_BE(addr, value64)   _MHD_PUT_64BIT_BE_SLOW(addr, value64)
#define	_MHD_PUT_64BIT_BE_UNALIGNED   1
#define	_MHD_PUT_32BIT_BE(addr, value32)
#define	_MHD_PUT_32BIT_BE_UNALIGNED   1
#define	_MHD_GET_32BIT_BE(addr)
#define	_MHD_GET_32BIT_BE_UNALIGNED   1

Functions
_MHD_static_inline void	_MHD_PUT_64BIT_LE_SAFE (void *dst, uint64_t value)
_MHD_static_inline void	_MHD_PUT_64BIT_BE_SAFE (void *dst, uint64_t value)
_MHD_static_inline uint32_t	_MHD_ROTR32 (uint32_t value32, int bits)
_MHD_static_inline uint32_t	_MHD_ROTL32 (uint32_t value32, int bits)

Detailed Description

macros for bits manipulations

Author

Karlson2k (Evgeny Grin)

Definition in file mhd_bithelpers.h.

Macro Definition Documentation

__has_builtin

#define __has_builtin

(

x

)

0

Definition at line 44 of file mhd_bithelpers.h.

_MHD_BYTES_SWAP32

#define _MHD_BYTES_SWAP32

(

value32

)

Value:

  ( (((uint32_t) (value32)) << 24)                                  \
    | ((((uint32_t) (value32)) & ((uint32_t) 0x0000FF00)) << 8)     \
    | ((((uint32_t) (value32)) & ((uint32_t) 0x00FF0000)) >> 8)     \
    | (((uint32_t) (value32))                           >> 24) )

Definition at line 63 of file mhd_bithelpers.h.

_MHD_BYTES_SWAP64

#define _MHD_BYTES_SWAP64

(

value64

)

Value:

  ( (((uint64_t) (value64)) << 56)                                          \
    | ((((uint64_t) (value64)) & ((uint64_t) 0x000000000000FF00)) << 40)    \
    | ((((uint64_t) (value64)) & ((uint64_t) 0x0000000000FF0000)) << 24)    \
    | ((((uint64_t) (value64)) & ((uint64_t) 0x00000000FF000000)) << 8)     \
    | ((((uint64_t) (value64)) & ((uint64_t) 0x000000FF00000000)) >> 8)     \
    | ((((uint64_t) (value64)) & ((uint64_t) 0x0000FF0000000000)) >> 24)    \
    | ((((uint64_t) (value64)) & ((uint64_t) 0x00FF000000000000)) >> 40)    \
    | (((uint64_t) (value64))                                   >> 56) )

Definition at line 85 of file mhd_bithelpers.h.

_MHD_GET_32BIT_BE

#define _MHD_GET_32BIT_BE

(

addr

)

Value:

  ( (((uint32_t) (((const uint8_t*) addr)[0])) << 24)     \
    | (((uint32_t) (((const uint8_t*) addr)[1])) << 16)   \
    | (((uint32_t) (((const uint8_t*) addr)[2])) << 8)    \
    | ((uint32_t) (((const uint8_t*) addr)[3])) )

Definition at line 266 of file mhd_bithelpers.h.

_MHD_GET_32BIT_BE_UNALIGNED

#define _MHD_GET_32BIT_BE_UNALIGNED   1

Definition at line 272 of file mhd_bithelpers.h.

_MHD_GET_32BIT_LE

#define _MHD_GET_32BIT_LE

(

addr

)

Value:

  ( ( (uint32_t) (((const uint8_t*) addr)[0]))            \
    | (((uint32_t) (((const uint8_t*) addr)[1])) << 8)    \
    | (((uint32_t) (((const uint8_t*) addr)[2])) << 16)   \
    | (((uint32_t) (((const uint8_t*) addr)[3])) << 24) )

Definition at line 181 of file mhd_bithelpers.h.

_MHD_GET_32BIT_LE_UNALIGNED

#define _MHD_GET_32BIT_LE_UNALIGNED   1

Definition at line 187 of file mhd_bithelpers.h.

_MHD_PUT_32BIT_BE

#define _MHD_PUT_32BIT_BE	(		addr,
			value32
	)

Value:

    do {                            \
    ((uint8_t*) (addr))[3] = (uint8_t) ((uint32_t) (value32));           \
    ((uint8_t*) (addr))[2] = (uint8_t) (((uint32_t) (value32)) >> 8);    \
    ((uint8_t*) (addr))[1] = (uint8_t) (((uint32_t) (value32)) >> 16);   \
    ((uint8_t*) (addr))[0] = (uint8_t) (((uint32_t) (value32)) >> 24);   \
} while (0)

Definition at line 244 of file mhd_bithelpers.h.

_MHD_PUT_32BIT_BE_UNALIGNED

#define _MHD_PUT_32BIT_BE_UNALIGNED   1

Definition at line 251 of file mhd_bithelpers.h.

_MHD_PUT_32BIT_LE

#define _MHD_PUT_32BIT_LE	(		addr,
			value32
	)

Value:

    do {                            \
    ((uint8_t*) (addr))[0] = (uint8_t) ((uint32_t) (value32));           \
    ((uint8_t*) (addr))[1] = (uint8_t) (((uint32_t) (value32)) >> 8);    \
    ((uint8_t*) (addr))[2] = (uint8_t) (((uint32_t) (value32)) >> 16);   \
    ((uint8_t*) (addr))[3] = (uint8_t) (((uint32_t) (value32)) >> 24);   \
} while (0)

Definition at line 159 of file mhd_bithelpers.h.

_MHD_PUT_32BIT_LE_UNALIGNED

#define _MHD_PUT_32BIT_LE_UNALIGNED   1

Definition at line 166 of file mhd_bithelpers.h.

_MHD_PUT_64BIT_BE

#define _MHD_PUT_64BIT_BE	(		addr,
			value64
	)		_MHD_PUT_64BIT_BE_SLOW(addr, value64)

Definition at line 214 of file mhd_bithelpers.h.

_MHD_PUT_64BIT_BE_SLOW

#define _MHD_PUT_64BIT_BE_SLOW	(		addr,
			value64
	)

Value:

    do {                       \
    ((uint8_t*) (addr))[7] = (uint8_t) ((uint64_t) (value64));           \
    ((uint8_t*) (addr))[6] = (uint8_t) (((uint64_t) (value64)) >> 8);    \
    ((uint8_t*) (addr))[5] = (uint8_t) (((uint64_t) (value64)) >> 16);   \
    ((uint8_t*) (addr))[4] = (uint8_t) (((uint64_t) (value64)) >> 24);   \
    ((uint8_t*) (addr))[3] = (uint8_t) (((uint64_t) (value64)) >> 32);   \
    ((uint8_t*) (addr))[2] = (uint8_t) (((uint64_t) (value64)) >> 40);   \
    ((uint8_t*) (addr))[1] = (uint8_t) (((uint64_t) (value64)) >> 48);   \
    ((uint8_t*) (addr))[0] = (uint8_t) (((uint64_t) (value64)) >> 56);   \
} while (0)

Definition at line 196 of file mhd_bithelpers.h.

_MHD_PUT_64BIT_BE_UNALIGNED

#define _MHD_PUT_64BIT_BE_UNALIGNED   1

Definition at line 216 of file mhd_bithelpers.h.

_MHD_PUT_64BIT_LE

#define _MHD_PUT_64BIT_LE	(		addr,
			value64
	)

Value:

    do {                            \
    ((uint8_t*) (addr))[0] = (uint8_t) ((uint64_t) (value64));           \
    ((uint8_t*) (addr))[1] = (uint8_t) (((uint64_t) (value64)) >> 8);    \
    ((uint8_t*) (addr))[2] = (uint8_t) (((uint64_t) (value64)) >> 16);   \
    ((uint8_t*) (addr))[3] = (uint8_t) (((uint64_t) (value64)) >> 24);   \
    ((uint8_t*) (addr))[4] = (uint8_t) (((uint64_t) (value64)) >> 32);   \
    ((uint8_t*) (addr))[5] = (uint8_t) (((uint64_t) (value64)) >> 40);   \
    ((uint8_t*) (addr))[6] = (uint8_t) (((uint64_t) (value64)) >> 48);   \
    ((uint8_t*) (addr))[7] = (uint8_t) (((uint64_t) (value64)) >> 56);   \
} while (0)

Definition at line 120 of file mhd_bithelpers.h.

_MHD_PUT_64BIT_LE_SLOW

#define _MHD_PUT_64BIT_LE_SLOW	(		addr,
			value64
	)

Value:

    do {                       \
    ((uint8_t*) (addr))[0] = (uint8_t) ((uint64_t) (value64));           \
    ((uint8_t*) (addr))[1] = (uint8_t) (((uint64_t) (value64)) >> 8);    \
    ((uint8_t*) (addr))[2] = (uint8_t) (((uint64_t) (value64)) >> 16);   \
    ((uint8_t*) (addr))[3] = (uint8_t) (((uint64_t) (value64)) >> 24);   \
    ((uint8_t*) (addr))[4] = (uint8_t) (((uint64_t) (value64)) >> 32);   \
    ((uint8_t*) (addr))[5] = (uint8_t) (((uint64_t) (value64)) >> 40);   \
    ((uint8_t*) (addr))[6] = (uint8_t) (((uint64_t) (value64)) >> 48);   \
    ((uint8_t*) (addr))[7] = (uint8_t) (((uint64_t) (value64)) >> 56);   \
} while (0)

Definition at line 102 of file mhd_bithelpers.h.

_MHD_PUT_64BIT_LE_UNALIGNED

#define _MHD_PUT_64BIT_LE_UNALIGNED   1

Definition at line 131 of file mhd_bithelpers.h.

Function Documentation

_MHD_PUT_64BIT_BE_SAFE()

_MHD_static_inline void _MHD_PUT_64BIT_BE_SAFE	(	void *	dst,
		uint64_t	value
	)

Definition at line 221 of file mhd_bithelpers.h.

References _MHD_PUT_64BIT_BE, _MHD_PUT_64BIT_BE_SLOW, and _MHD_UINT64_ALIGN.

Referenced by MHD_SHA1_finish(), and MHD_SHA256_finish().

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_MHD_PUT_64BIT_LE_SAFE()

_MHD_static_inline void _MHD_PUT_64BIT_LE_SAFE	(	void *	dst,
		uint64_t	value
	)

Definition at line 136 of file mhd_bithelpers.h.

References _MHD_PUT_64BIT_LE, _MHD_PUT_64BIT_LE_SLOW, and _MHD_UINT64_ALIGN.

Referenced by MHD_MD5Final().

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_MHD_ROTL32()

_MHD_static_inline uint32_t _MHD_ROTL32	(	uint32_t	value32,
		int	bits
	)

Rotate left 32-bit value by number of bits. bits parameter must be more than zero and must be less than 32.

Definition at line 321 of file mhd_bithelpers.h.

_MHD_ROTR32()

_MHD_static_inline uint32_t _MHD_ROTR32	(	uint32_t	value32,
		int	bits
	)

Rotate right 32-bit value by number of bits. bits parameter must be more than zero and must be less than 32.

Definition at line 293 of file mhd_bithelpers.h.