b1a42ef8c2
portability somewhat:
- consistently use POSIX uint{8,16,32,64}_t throughout the code.
- asssume for now that the compiler supports ULL as suffix
- use AC_TYPE_UINT{8,16,32,64}_T instead of bits.c to compute
possible replacement types.
Bump to 20070703. Tested by Thorsten Glaser on Interix and tnn@ on
Solaris.
107 lines
3.6 KiB
C
107 lines
3.6 KiB
C
#ifndef PORTABLE_C__
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#define PORTABLE_C__
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#include "config.h"
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/* Definition of minimum-width integer types
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*
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* u8 -> unsigned integer type, at least 8 bits, equivalent to unsigned char
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* u16 -> unsigned integer type, at least 16 bits
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* u32 -> unsigned integer type, at least 32 bits
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*
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* s8, s16, s32 -> signed counterparts of u8, u16, u32
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*
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* Always use macro's T8(), T16() or T32() to obtain exact-width results,
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* i.e., to specify the size of the result of each expression.
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*/
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typedef uint8_t u8;
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typedef uint16_t u16;
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typedef uint32_t u32;
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typedef uint64_t u64;
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#define ONE8 0xffU
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#define ONE16 0xffffU
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#define ONE32 0xffffffffUL
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#define LL(v) (v##ULL)
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#define ONE64 LL(0xffffffffffffffff)
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#define T8(x) ((x) & ONE8)
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#define T16(x) ((x) & ONE16)
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#define T32(x) ((x) & ONE32)
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#define T64(x) ((x) & ONE64)
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#define ROTR64(v, n) (((v) >> (n)) | T64((v) << (64 - (n))))
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/*
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* Note: the test is used to detect native 64-bit architectures;
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* if the unsigned long is strictly greater than 32-bit, it is
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* assumed to be at least 64-bit. This will not work correctly
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* on (old) 36-bit architectures (PDP-11 for instance).
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*
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* On non-64-bit architectures, "long long" is used.
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*/
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/*
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* U8TO32_BIG(c) returns the 32-bit value stored in big-endian convention
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* in the unsigned char array pointed to by c.
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*/
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#define U8TO32_BIG(c) (((u32)T8(*(c)) << 24) | ((u32)T8(*((c) + 1)) << 16) | ((u32)T8(*((c) + 2)) << 8) | ((u32)T8(*((c) + 3))))
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/*
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* U8TO32_LITTLE(c) returns the 32-bit value stored in little-endian convention
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* in the unsigned char array pointed to by c.
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*/
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#define U8TO32_LITTLE(c) (((u32)T8(*(c))) | ((u32)T8(*((c) + 1)) << 8) | (u32)T8(*((c) + 2)) << 16) | ((u32)T8(*((c) + 3)) << 24))
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/*
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* U8TO32_BIG(c, v) stores the 32-bit-value v in big-endian convention
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* into the unsigned char array pointed to by c.
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*/
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#define U32TO8_BIG(c, v) do { u32 x = (v); u8 *d = (c); d[0] = T8(x >> 24); d[1] = T8(x >> 16); d[2] = T8(x >> 8); d[3] = T8(x); } while (0)
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/*
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* U8TO32_LITTLE(c, v) stores the 32-bit-value v in little-endian convention
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* into the unsigned char array pointed to by c.
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*/
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#define U32TO8_LITTLE(c, v) do { u32 x = (v); u8 *d = (c); d[0] = T8(x); d[1] = T8(x >> 8); d[2] = T8(x >> 16); d[3] = T8(x >> 24); } while (0)
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/*
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* ROTL32(v, n) returns the value of the 32-bit unsigned value v after
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* a rotation of n bits to the left. It might be replaced by the appropriate
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* architecture-specific macro.
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*
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* It evaluates v and n twice.
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*
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* The compiler might emit a warning if n is the constant 0. The result
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* is undefined if n is greater than 31.
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*/
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#define ROTL32(v, n) (T32((v) << (n)) | ((v) >> (32 - (n))))
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/*
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* Whirlpool-specific definitions.
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*/
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#define WHIRLPOOL_DIGEST_BYTES 64
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#define WHIRLPOOL_DIGEST_BITS (8*WHIRLPOOL_DIGEST_BYTES) /* 512 */
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#define WHIRLPOOL_WBLOCK_BYTES 64
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#define WHIRLPOOL_WBLOCK_BITS (8*WHIRLPOOL_WBLOCK_BYTES) /* 512 */
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#define WHIRLPOOL_LENGTH_BYTES 32
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#define WHIRLPOOL_LENGTH_BITS (8*WHIRLPOOL_LENGTH_BYTES) /* 256 */
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typedef struct whirlpool_context_t {
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u8 bitLength[WHIRLPOOL_LENGTH_BYTES]; /* global number of hashed bits (256-bit counter) */
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u8 buffer[WHIRLPOOL_WBLOCK_BYTES]; /* buffer of data to hash */
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int bufferBits; /* current number of bits on the buffer */
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int bufferPos; /* current (possibly incomplete) byte slot on the buffer */
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u64 hash[WHIRLPOOL_DIGEST_BYTES/8]; /* the hashing state */
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} whirlpool_context_t;
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void whirlpool_init(whirlpool_context_t *);
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void whirlpool_update(whirlpool_context_t *, const unsigned char *, unsigned int);
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char *whirlpool_end(whirlpool_context_t *, char *);
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char *whirlpool_file(char *, char *);
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#endif /* PORTABLE_C__ */
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