103 lines
3.2 KiB
C
103 lines
3.2 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 /* original minix fs */
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#define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 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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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[46];
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u_char s_uuid[16];
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u_char s_volume_name[16];
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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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#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 0x00011954
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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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