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Dir : ~/proc/1856814/root/usr/local/include/mutils/

Edit File: mutils.h

/*
 *    Copyright (C) 2005 Jonathan Day, Nikos Mavroyanopoulos
 *
 *    This library is free software; you can redistribute it and/or modify it 
 *    under the terms of the GNU Library General Public License as published 
 *    by the Free Software Foundation; either version 2 of the License, or 
 *    (at your option) any later version.
 *
 *    This library 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
 *    Library General Public License for more details.
 *
 *    You should have received a copy of the GNU Library General Public
 *    License along with this library; if not, write to the
 *    Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 *    Boston, MA 02111-1307, USA.
 */

#if !defined(__MUTILS_H)
#define __MUTILS_H

#include <mutils/mincludes.h>

#if defined(const)
#define __const const
#endif

/*
 * The vast majority of user code won't care about mutils, so changes to
 * this helper library API should not result in a change to the MHASH API
 * version number.
 */

#define MUTILS_API 20060624

/* FIXME: We're assuming we've a standard integer types header and that it has been included
 * correctly.
 */

#define MUTILS_STANDARD_TYPES 1

#if defined(MUTILS_STANDARD_TYPES)

#define TIGER_64BIT

#define mutils_word64 uint64_t
#define mutils_word32 uint32_t
#define mutils_word16 uint16_t
#define mutils_word8 uint8_t

#else /* Ok, we don't have the standard integer type definitions */

#if SIZEOF_UNSIGNED_LONG_INT == 8
typedef unsigned long int mutils_word64;
#define TIGER_64BIT
#elif SIZEOF_UNSIGNED_LONG_LONG_INT == 8
typedef unsigned long long int mutils_word64;
#else
#error "Cannot find a 64 bit integer in your system, sorry."
#endif

#if SIZEOF_UNSIGNED_LONG_INT == 4
typedef unsigned long int mutils_word32;
#elif SIZEOF_UNSIGNED_INT == 4
typedef unsigned int mutils_word32;
#else
#error "Cannot find a 32 bit integer in your system, sorry."
#endif

#if SIZEOF_UNSIGNED_INT == 2
typedef unsigned int mutils_word16;
#elif SIZEOF_UNSIGNED_SHORT_INT == 2
typedef unsigned short int mutils_word16;
#else
#error "Cannot find a 16 bit integer in your system, sorry."
#endif

#if SIZEOF_UNSIGNED_CHAR == 1
typedef unsigned char mutils_word8;
#else
#error "Cannot find an 8 bit char in your system, sorry."
#endif

#endif /* End of standard integer type declarationsd */

/*
 * Due to buggy implementations of the boolean headers in some systems,
 * we have to detect the boolean values seperately from the boolean type.
 * A big thank you to Heiko Lehmann for spotting the bug. Unfortunately,
 * this fix may not be enough, as it is only going to work on things the
 * precompiler knows about.
 *
 * Why go to all this trouble over something that should have a standard
 * value anyway? Because.
 */

#if defined(HAVE__BOOL)
#define mutils_boolean _Bool
#else
typedef char mutils_boolean;
#endif

#if defined(false)
#define MUTILS_FALSE (mutils_boolean) false
#else
#if defined(FALSE)
#define MUTILS_FALSE (mutils_boolean) FALSE
#else
#define MUTILS_FALSE (mutils_boolean) 0
#endif /* FALSE */
#endif /* false */

#if defined(true)
#define MUTILS_TRUE (mutils_boolean) true
#else
#if defined(TRUE)
#define MUTILS_TRUE (mutils_boolean) TRUE
#else
#define MUTILS_TRUE (mutils_boolean) -1
#endif /* TRUE */
#endif /* true */

/*
 * Other than OK, the only defined values should be for a category of error.
 * Even then, the values shouldn't be assumed. Their only function is to
 * make it easy to programmatically identify the nature of the error and to
 * ensure a library upgrade won't break existing binaries, should new error
 * codes be introduced.
 */

typedef enum __mutils_error_codes
{
	MUTILS_OK			= 0,
	MUTILS_SYSTEM_ERROR		= 0x100,
	MUTILS_UNSPECIFIED_ERROR,
	MUTILS_SYSTEM_RESOURCE_ERROR,
	MUTILS_PARAMETER_ERROR		= 0x200,
	MUTILS_INVALID_FUNCTION,
	MUTILS_INVALID_INPUT_BUFFER,
	MUTILS_INVALID_OUTPUT_BUFFER,
	MUTILS_INVALID_PASSES,
	MUTILS_INVALID_FORMAT,
	MUTILS_INVALID_SIZE,
	MUTILS_INVALID_RESULT
} mutils_error_codes;

#define mutils_error mutils_word32

#include <mutils/mglobal.h>

/*
 * Some useful, generic endian macros.
 */

#define mutils_swapendian64(x) \
	((mutils_word64) \
		(((x) & 0xff00000000000000ull) >> 56) |	\
		(((x) & 0x00ff000000000000ull) >> 40) |	\
		(((x) & 0x0000ff0000000000ull) >> 24) | \
		(((x) & 0x000000ff00000000ull) >>  8) | \
		(((x) & 0x00000000ff000000ull) <<  8) | \
		(((x) & 0x0000000000ff0000ull) << 24) | \
		(((x) & 0x000000000000ff00ull) << 40) | \
	 	(((x) & 0x00000000000000ffull) << 56))

#define mutils_swapendian32(a) \
	((mutils_word32) \
		(((a & (mutils_word32) 0x000000ffU) << 24) | \
		 ((a & (mutils_word32) 0x0000ff00U) << 8)  | \
		 ((a & (mutils_word32) 0x00ff0000U) >> 8)  | \
		 ((a & (mutils_word32) 0xff000000U) >> 24))  \
	)

#define mutils_swapendian16(a) \
	((mutils_word16) \
		(((a & (mutils_word16) 0x00ffU) << 8) | \
		 ((a & (mutils_word16) 0xff00U) >> 8))  \
	 )

/* Change the endianness of the data if (and only if) the data type we want
 * is the opposite from the native endianness. This allows us to have some
 * reasonably generic macros, provided we always start from the native
 * ordering.
 */

#if defined(WORDS_BIGENDIAN)

#define mutils_lend64(n) mutils_swapendian64(n)
#define mutils_lend32(n) mutils_swapendian32(n)
#define mutils_lend16(n) mutils_swapendian16(n)

#define mutils_bend64(n) n
#define mutils_bend32(n) n
#define mutils_bend16(n) n

#define mutils_lend2sys64(n) mutils_swapendian64(n)
#define mutils_lend2sys32(n) mutils_swapendian32(n)
#define mutils_lend2sys16(n) mutils_swapendian16(n)

#define mutils_bend2sys32(n) n
#define mutils_bend2sys16(n) n

#else

#define mutils_lend64(n) n
#define mutils_lend32(n) n
#define mutils_lend16(n) n

#define mutils_bend64(n) mutils_swapendian64(n)
#define mutils_bend32(n) mutils_swapendian32(n)
#define mutils_bend16(n) mutils_swapendian16(n)

#define mutils_lend2sys64(n) n
#define mutils_lend2sys32(n) n
#define mutils_lend2sys16(n) n

#define mutils_bend2sys64(n) mutils_swapendian64(n)
#define mutils_bend2sys32(n) mutils_swapendian32(n)
#define mutils_bend2sys16(n) mutils_swapendian16(n)

#endif

int mutils_mlock(__const void *addr, __const mutils_word32 len);
int mutils_munlock(__const void *addr, __const mutils_word32 len);

void *mutils_malloc(__const mutils_word32 n);
void *mutils_realloc(__const void *ptr, __const mutils_word32 n);
void mutils_free(__const void *ptr);
void mutils_bzero(void *s, __const mutils_word32 n);

void mutils_memset(void *dest, __const mutils_word8 c, __const mutils_word32 n);
void mutils_memcpy(void *dest, __const void *src, __const mutils_word32 n);
void mutils_memmove(void *dest, __const void *src, __const mutils_word32 n);
int mutils_memcmp(__const void *s1, __const void *s2, __const mutils_word32 n);

mutils_word32 mutils_strlen(__const mutils_word8 *str);
mutils_word8 *mutils_strdup(__const mutils_word8 *str);
mutils_word8 *mutils_strcat(mutils_word8 *dest, __const mutils_word8 *src);
mutils_word8 *mutils_strcpy(mutils_word8 *dest, __const mutils_word8 *src);
mutils_word8 *mutils_strncpy(mutils_word8 *dest, __const mutils_word8 *src, __const mutils_word32 n);
int mutils_strcmp(__const mutils_word8 *src1, __const mutils_word8 *src2);
int mutils_strncmp(__const mutils_word8 *src1, __const mutils_word8 *src2, __const mutils_word32 n);
long mutils_strtol(__const mutils_word8 *nptr, mutils_word8 **endptr, __const mutils_word8 base);

mutils_word32 mutils_word32swap(mutils_word32 x);
mutils_word32 *mutils_word32nswap(mutils_word32 *x, mutils_word32 n, mutils_boolean destructive);

mutils_word8 *mutils_asciify(mutils_word8 *in, __const mutils_word32 len);
mutils_boolean mutils_thequals(mutils_word8 *text, mutils_word8 *hash, __const mutils_word32 len);

#endif /* __MUTILS_H */