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/*
* macros.h
*
* Copyright (C) 1995 Martin von Löwis
* Copyright (C) 1996 Régis Duchesne
*/
#define NTFS_FD(vol) ((vol)->u.fd)
/* Linux */
#ifdef NTFS_IN_LINUX_KERNEL
#define NTFS_SB(vol) ((struct super_block*)(vol)->sb)
#define NTFS_SB2VOL(sb) (&(sb)->u.ntfs_sb)
#define NTFS_INO2VOL(ino) (&((ino)->i_sb->u.ntfs_sb))
#define NTFS_LINO2NINO(ino) (&((ino)->u.ntfs_i))
#else
#define NTFS_SB(vol) ((struct super_block*)(vol)->u.sb)
#define NTFS_SB2VOL(sb) ((ntfs_volume*)(sb)->u.generic_sbp)
#define NTFS_INO2VOL(ino) ((ntfs_volume*)((ino)->i_sb->u.generic_sbp))
#define NTFS_LINO2NINO(ino) ((ntfs_inode*)((ino)->u.generic_ip))
#endif
/* BSD */
#define NTFS_MNT(vol) ((struct mount*)(vol)->u.sb)
#define NTFS_MNT2VOL(sb) ((ntfs_volume*)(sb)->mnt_data)
#define NTFS_V2INO(ino) ((ntfs_inode*)((ino)->v_data))
/* Classical min and max macros still missing in standard headers... */
#ifndef min
#define min(a,b) ((a) <= (b) ? (a) : (b))
#define max(a,b) ((a) >= (b) ? (a) : (b))
#endif
#define IS_MAGIC(a,b) (*(int*)(a)==*(int*)(b))
#define IS_MFT_RECORD(a) IS_MAGIC((a),"FILE")
#define IS_NTFS_VOLUME(a) IS_MAGIC((a)+3,"NTFS")
#define IS_INDEX_RECORD(a) IS_MAGIC((a),"INDX")
/* 'NTFS' in little endian */
#define NTFS_SUPER_MAGIC 0x5346544E
#define NTFS_AFLAG_RO 1
#define NTFS_AFLAG_HIDDEN 2
#define NTFS_AFLAG_SYSTEM 4
#define NTFS_AFLAG_ARCHIVE 20
#define NTFS_AFLAG_COMPRESSED 0x800
#define NTFS_AFLAG_DIR 0x10000000
/*
* Local variables:
* c-file-style: "linux"
* End:
*/
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