common.h

/*
 * This file is part of John the Ripper password cracker,
 * Copyright (c) 1996-99,2005,2009,2011,2013,2015 by Solar Designer
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted.
 *
 * There's ABSOLUTELY NO WARRANTY, express or implied.
 */

/*
 * Things common to many ciphertext formats.
 */

#ifndef _JOHN_COMMON_H
#define _JOHN_COMMON_H

#include "arch.h"
#include "memory.h"

#ifdef __GNUC__
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
#define MAYBE_INLINE __attribute__((always_inline)) __inline__
#else
#define MAYBE_INLINE __inline__
#endif
#elif __STDC_VERSION__ >= 199901L
#define MAYBE_INLINE inline
#else
#define MAYBE_INLINE
#endif

#if ((__GNUC__ == 2) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 2)
#define CC_CACHE_ALIGN \
	__attribute__ ((aligned (MEM_ALIGN_CACHE)))
#else
#define CC_CACHE_ALIGN			/* nothing */
#endif

/*
 * This "shift" is the number of bytes that may be inserted between arrays the
 * size of which would be a multiple of cache line size (some power of two) and
 * that might be accessed simultaneously.  The purpose of the shift is to avoid
 * cache bank conflicts with such accesses, actually allowing them to proceed
 * simultaneously.  This number should be a multiple of the machine's word size
 * but smaller than cache line size.
 */
#define CACHE_BANK_SHIFT		ARCH_SIZE

/*
 * ASCII <-> binary conversion tables.
 */
extern const char itoa64[64]; /* crypt(3) base64 - not MIME Base64! */
extern unsigned char atoi64[0x100];
extern const char itoa16[16];
extern unsigned char atoi16[0x100], atoi16l[0x100];

/*
 * Initializes the tables.
 */
extern void common_init(void);

#endif