214 lines
6.3 KiB
C
214 lines
6.3 KiB
C
/* Including <linux/fs.h> became more and more painful.
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Below a very abbreviated version of some declarations,
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only designed to be able to check a magic number
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in case no filesystem type was given. */
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#ifndef BLKGETSIZE
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#ifndef _IO
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/* pre-1.3.45 */
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#define BLKGETSIZE 0x1260 /* return device size */
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#else
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/* same on i386, m68k, arm; different on alpha, mips, sparc, ppc */
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#define BLKGETSIZE _IO(0x12,96)
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#endif
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#endif
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#define MINIX_SUPER_MAGIC 0x137F /* minix v1, 14 char names */
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#define MINIX_SUPER_MAGIC2 0x138F /* minix v1, 30 char names */
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#define MINIX2_SUPER_MAGIC 0x2468 /* minix v2, 14 char names */
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#define MINIX2_SUPER_MAGIC2 0x2478 /* minix v2, 30 char names */
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struct minix_super_block {
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u_char s_dummy[16];
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u_char s_magic[2];
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};
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#define minixmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
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#define ISODCL(from, to) (to - from + 1)
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#define ISO_STANDARD_ID "CD001"
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struct iso_volume_descriptor {
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char type[ISODCL(1,1)]; /* 711 */
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char id[ISODCL(2,6)];
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char version[ISODCL(7,7)];
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char data[ISODCL(8,2048)];
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};
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#define HS_STANDARD_ID "CDROM"
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struct hs_volume_descriptor {
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char foo[ISODCL ( 1, 8)]; /* 733 */
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char type[ISODCL ( 9, 9)]; /* 711 */
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char id[ISODCL ( 10, 14)];
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char version[ISODCL ( 15, 15)]; /* 711 */
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char data[ISODCL(16,2048)];
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};
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#define EXT_SUPER_MAGIC 0x137D
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struct ext_super_block {
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u_char s_dummy[56];
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u_char s_magic[2];
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};
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#define extmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
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#define EXT2_PRE_02B_MAGIC 0xEF51
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#define EXT2_SUPER_MAGIC 0xEF53
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#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
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struct ext2_super_block {
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u_char s_dummy1[56];
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u_char s_magic[2];
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u_char s_dummy2[34];
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u_char s_feature_compat[4];
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u_char s_feature_incompat[4];
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u_char s_feature_ro_compat[4];
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u_char s_uuid[16];
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u_char s_volume_name[16];
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u_char s_dummy3[88];
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u_char s_journal_inum[4]; /* ext3 only */
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};
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#define ext2magic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
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struct reiserfs_super_block
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{
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u_char s_block_count[4];
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u_char s_free_blocks[4];
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u_char s_root_block[4];
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u_char s_journal_block[4];
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u_char s_journal_dev[4];
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u_char s_orig_journal_size[4];
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u_char s_journal_trans_max[4];
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u_char s_journal_block_count[4];
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u_char s_journal_max_batch[4];
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u_char s_journal_max_commit_age[4];
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u_char s_journal_max_trans_age[4];
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u_char s_blocksize[2];
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u_char s_oid_maxsize[2];
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u_char s_oid_cursize[2];
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u_char s_state[2];
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u_char s_magic[12];
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};
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#define REISERFS_SUPER_MAGIC_STRING "ReIsErFs"
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#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
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#define REISERFS_DISK_OFFSET_IN_BYTES (64 * 1024)
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/* the spot for the super in versions 3.5 - 3.5.10 (inclusive) */
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#define REISERFS_OLD_DISK_OFFSET_IN_BYTES (8 * 1024)
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#define _XIAFS_SUPER_MAGIC 0x012FD16D
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struct xiafs_super_block {
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u_char s_boot_segment[512]; /* 1st sector reserved for boot */
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u_char s_dummy[60];
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u_char s_magic[4];
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};
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#define xiafsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
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(((uint) s.s_magic[2]) << 16) + \
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(((uint) s.s_magic[3]) << 24))
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/* From jj@sunsite.ms.mff.cuni.cz Mon Mar 23 15:19:05 1998 */
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#define UFS_SUPER_MAGIC_LE 0x00011954
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#define UFS_SUPER_MAGIC_BE 0x54190100
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struct ufs_super_block {
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u_char s_dummy[0x55c];
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u_char s_magic[4];
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};
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#define ufsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
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(((uint) s.s_magic[2]) << 16) + \
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(((uint) s.s_magic[3]) << 24))
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/* From Richard.Russon@ait.co.uk Wed Feb 24 08:05:27 1999 */
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#define NTFS_SUPER_MAGIC "NTFS"
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struct ntfs_super_block {
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u_char s_dummy[3];
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u_char s_magic[4];
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};
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/* From inspection of a few FAT filesystems - aeb */
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/* Unfortunately I find almost the same thing on an extended partition;
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it looks like a primary has some directory entries where the extended
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has a partition table: IO.SYS, MSDOS.SYS, WINBOOT.SYS */
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struct fat_super_block {
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u_char s_dummy[3];
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u_char s_os[8]; /* "MSDOS5.0" or "MSWIN4.0" or "MSWIN4.1" */
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/* mtools-3.9.4 writes "MTOOL394" */
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u_char s_dummy2[32];
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u_char s_label[11]; /* for DOS? */
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u_char s_fs[8]; /* "FAT12 " or "FAT16 " or all zero */
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/* OS/2 BM has "FAT " here. */
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u_char s_dummy3[9];
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u_char s_label2[11]; /* for Windows? */
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u_char s_fs2[8]; /* garbage or "FAT32 " */
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};
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#define XFS_SUPER_MAGIC "XFSB"
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struct xfs_super_block {
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u_char s_magic[4];
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u_char s_dummy[28];
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u_char s_uuid[16];
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u_char s_dummy2[60];
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u_char s_fname[12];
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};
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#define CRAMFS_SUPER_MAGIC 0x28cd3d45
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struct cramfs_super_block {
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u_char s_magic[4];
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u_char s_dummy[12];
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u_char s_id[16];
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};
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#define cramfsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
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(((uint) s.s_magic[2]) << 16) + \
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(((uint) s.s_magic[3]) << 24))
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#define HFS_SUPER_MAGIC 0x4244
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struct hfs_super_block {
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u_char s_magic[2];
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u_char s_dummy[18];
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u_char s_blksize[4];
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};
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#define hfsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8))
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#define hfsblksize(s) ((uint) s.s_blksize[0] + \
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(((uint) s.s_blksize[1]) << 8) + \
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(((uint) s.s_blksize[2]) << 16) + \
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(((uint) s.s_blksize[3]) << 24))
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#define HPFS_SUPER_MAGIC 0xf995e849
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struct hpfs_super_block {
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u_char s_magic[4];
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u_char s_magic2[4];
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};
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#define hpfsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
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(((uint) s.s_magic[2]) << 16) + \
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(((uint) s.s_magic[3]) << 24))
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struct adfs_super_block {
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u_char s_dummy[448];
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u_char s_blksize[1];
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u_char s_dummy2[62];
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u_char s_checksum[1];
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};
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#define adfsblksize(s) ((uint) s.s_blksize[0])
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/* found in first 4 bytes of block 1 */
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struct vxfs_super_block {
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u_char s_magic[4];
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};
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#define vxfsmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
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(((uint) s.s_magic[2]) << 16) + \
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(((uint) s.s_magic[3]) << 24))
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#define VXFS_SUPER_MAGIC 0xa501FCF5
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struct jfs_super_block {
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char s_magic[4];
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u_char s_dummy1[97];
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char s_fpack[11];
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};
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#define JFS_SUPER1_OFF 0x8000
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#define JFS_MAGIC "JFS1"
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#define SYSV_SUPER_MAGIC 0xfd187e20
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struct sysv_super_block {
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u_char s_dummy1[504];
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u_char s_magic[4];
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u_char type[4];
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};
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#define sysvmagic(s) ((uint) s.s_magic[0] + (((uint) s.s_magic[1]) << 8) + \
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(((uint) s.s_magic[2]) << 16) + \
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(((uint) s.s_magic[3]) << 24))
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