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/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* The contents of this file constitute Original Code as defined in and
* are subject to the Apple Public Source License Version 1.1 (the
* "License"). You may not use this file except in compliance with the
* License. Please obtain a copy of the License at
* http://www.apple.com/publicsource and read it before using this file.
*
* This Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#ifndef __HFS_ENDIAN_H__
#define __HFS_ENDIAN_H__
/*
* hfs_endian.h
*
* This file prototypes endian swapping routines for the HFS/HFS Plus
* volume format.
*/
#include <hfs/hfs_format.h>
#if LINUX
#include <endian.h>
#include <byteswap.h>
#else
#include <architecture/byte_order.h>
#endif
/*********************/
/* BIG ENDIAN Macros */
/*********************/
#if BYTE_ORDER == BIG_ENDIAN
/* HFS is always big endian, make swaps into no-ops */
#define SWAP_BE16(__a) (__a)
#define SWAP_BE32(__a) (__a)
#define SWAP_BE64(__a) (__a)
/* HFS is always big endian, no swapping needed */
#define SWAP_HFSMDB(__a)
#define SWAP_HFSPLUSVH(__a)
/************************/
/* LITTLE ENDIAN Macros */
/************************/
#elif BYTE_ORDER == LITTLE_ENDIAN
/* HFS is always big endian, make swaps actually swap */
#define SWAP_BE16(__a) NXSwapBigShortToHost (__a)
#define SWAP_BE32(__a) NXSwapBigLongToHost (__a)
#define SWAP_BE64(__a) NXSwapBigLongLongToHost (__a)
#define SWAP_HFSMDB(__a) hfs_swap_HFSMasterDirectoryBlock ((__a))
#define SWAP_HFSPLUSVH(__a) hfs_swap_HFSPlusVolumeHeader ((__a));
#else
#warning Unknown byte order
#error
#endif
#ifdef __cplusplus
extern "C" {
#endif
void hfs_swap_HFSMasterDirectoryBlock (void *buf);
void hfs_swap_HFSPlusVolumeHeader (void *buf);
#ifdef __cplusplus
}
#endif
#endif /* __HFS_FORMAT__ */
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