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HPFS: Use types with defined width
Use types with defined width Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mikulas Patocka
Linus Torvalds
parent
e5d6a7dd5e
commit
d878597c2c
219
fs/hpfs/hpfs.h
219
fs/hpfs/hpfs.h
@ -21,7 +21,7 @@
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/* Notation */
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typedef unsigned secno; /* sector number, partition relative */
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typedef u32 secno; /* sector number, partition relative */
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typedef secno dnode_secno; /* sector number of a dnode */
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typedef secno fnode_secno; /* sector number of an fnode */
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@ -38,28 +38,28 @@ typedef u32 time32_t; /* 32-bit time_t type */
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struct hpfs_boot_block
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{
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unsigned char jmp[3];
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unsigned char oem_id[8];
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unsigned char bytes_per_sector[2]; /* 512 */
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unsigned char sectors_per_cluster;
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unsigned char n_reserved_sectors[2];
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unsigned char n_fats;
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unsigned char n_rootdir_entries[2];
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unsigned char n_sectors_s[2];
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unsigned char media_byte;
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unsigned short sectors_per_fat;
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unsigned short sectors_per_track;
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unsigned short heads_per_cyl;
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unsigned int n_hidden_sectors;
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unsigned int n_sectors_l; /* size of partition */
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unsigned char drive_number;
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unsigned char mbz;
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unsigned char sig_28h; /* 28h */
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unsigned char vol_serno[4];
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unsigned char vol_label[11];
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unsigned char sig_hpfs[8]; /* "HPFS " */
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unsigned char pad[448];
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unsigned short magic; /* aa55 */
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u8 jmp[3];
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u8 oem_id[8];
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u8 bytes_per_sector[2]; /* 512 */
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u8 sectors_per_cluster;
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u8 n_reserved_sectors[2];
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u8 n_fats;
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u8 n_rootdir_entries[2];
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u8 n_sectors_s[2];
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u8 media_byte;
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u16 sectors_per_fat;
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u16 sectors_per_track;
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u16 heads_per_cyl;
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u32 n_hidden_sectors;
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u32 n_sectors_l; /* size of partition */
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u8 drive_number;
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u8 mbz;
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u8 sig_28h; /* 28h */
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u8 vol_serno[4];
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u8 vol_label[11];
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u8 sig_hpfs[8]; /* "HPFS " */
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u8 pad[448];
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u16 magic; /* aa55 */
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};
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@ -71,31 +71,30 @@ struct hpfs_boot_block
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struct hpfs_super_block
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{
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unsigned magic; /* f995 e849 */
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unsigned magic1; /* fa53 e9c5, more magic? */
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/*unsigned huh202;*/ /* ?? 202 = N. of B. in 1.00390625 S.*/
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char version; /* version of a filesystem usually 2 */
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char funcversion; /* functional version - oldest version
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u32 magic; /* f995 e849 */
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u32 magic1; /* fa53 e9c5, more magic? */
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u8 version; /* version of a filesystem usually 2 */
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u8 funcversion; /* functional version - oldest version
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of filesystem that can understand
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this disk */
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unsigned short int zero; /* 0 */
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u16 zero; /* 0 */
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fnode_secno root; /* fnode of root directory */
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secno n_sectors; /* size of filesystem */
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unsigned n_badblocks; /* number of bad blocks */
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u32 n_badblocks; /* number of bad blocks */
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secno bitmaps; /* pointers to free space bit maps */
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unsigned zero1; /* 0 */
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u32 zero1; /* 0 */
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secno badblocks; /* bad block list */
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unsigned zero3; /* 0 */
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u32 zero3; /* 0 */
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time32_t last_chkdsk; /* date last checked, 0 if never */
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/*unsigned zero4;*/ /* 0 */
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time32_t last_optimize; /* date last optimized, 0 if never */
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/*u32 zero4;*/ /* 0 */
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time32_t last_optimize; /* date last optimized, 0 if never */
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secno n_dir_band; /* number of sectors in dir band */
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secno dir_band_start; /* first sector in dir band */
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secno dir_band_end; /* last sector in dir band */
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secno dir_band_bitmap; /* free space map, 1 dnode per bit */
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char volume_name[32]; /* not used */
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u8 volume_name[32]; /* not used */
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secno user_id_table; /* 8 preallocated sectors - user id */
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unsigned zero6[103]; /* 0 */
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u32 zero6[103]; /* 0 */
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};
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@ -107,11 +106,10 @@ struct hpfs_super_block
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struct hpfs_spare_block
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{
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unsigned magic; /* f991 1849 */
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unsigned magic1; /* fa52 29c5, more magic? */
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u32 magic; /* f991 1849 */
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u32 magic1; /* fa52 29c5, more magic? */
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unsigned dirty: 1; /* 0 clean, 1 "improperly stopped" */
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/*unsigned flag1234: 4;*/ /* unknown flags */
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unsigned sparedir_used: 1; /* spare dirblks used */
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unsigned hotfixes_used: 1; /* hotfixes used */
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unsigned bad_sector: 1; /* bad sector, corrupted disk (???) */
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@ -126,25 +124,24 @@ struct hpfs_spare_block
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unsigned dce_acls_active: 1;
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unsigned dasd_limits_dirty: 1;
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unsigned flag67: 2;
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unsigned char mm_contlgulty;
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unsigned char unused;
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u8 mm_contlgulty;
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u8 unused;
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secno hotfix_map; /* info about remapped bad sectors */
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unsigned n_spares_used; /* number of hotfixes */
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unsigned n_spares; /* number of spares in hotfix map */
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unsigned n_dnode_spares_free; /* spare dnodes unused */
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unsigned n_dnode_spares; /* length of spare_dnodes[] list,
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u32 n_spares_used; /* number of hotfixes */
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u32 n_spares; /* number of spares in hotfix map */
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u32 n_dnode_spares_free; /* spare dnodes unused */
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u32 n_dnode_spares; /* length of spare_dnodes[] list,
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follows in this block*/
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secno code_page_dir; /* code page directory block */
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unsigned n_code_pages; /* number of code pages */
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/*unsigned large_numbers[2];*/ /* ?? */
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unsigned super_crc; /* on HPFS386 and LAN Server this is
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u32 n_code_pages; /* number of code pages */
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u32 super_crc; /* on HPFS386 and LAN Server this is
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checksum of superblock, on normal
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OS/2 unused */
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unsigned spare_crc; /* on HPFS386 checksum of spareblock */
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unsigned zero1[15]; /* unused */
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u32 spare_crc; /* on HPFS386 checksum of spareblock */
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u32 zero1[15]; /* unused */
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dnode_secno spare_dnodes[100]; /* emergency free dnode list */
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unsigned zero2[1]; /* room for more? */
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u32 zero2[1]; /* room for more? */
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};
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/* The bad block list is 4 sectors long. The first word must be zero,
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@ -179,18 +176,18 @@ struct hpfs_spare_block
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struct code_page_directory
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{
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unsigned magic; /* 4945 21f7 */
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unsigned n_code_pages; /* number of pointers following */
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unsigned zero1[2];
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u32 magic; /* 4945 21f7 */
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u32 n_code_pages; /* number of pointers following */
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u32 zero1[2];
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struct {
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unsigned short ix; /* index */
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unsigned short code_page_number; /* code page number */
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unsigned bounds; /* matches corresponding word
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u16 ix; /* index */
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u16 code_page_number; /* code page number */
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u32 bounds; /* matches corresponding word
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in data block */
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secno code_page_data; /* sector number of a code_page_data
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containing c.p. array */
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unsigned short index; /* index in c.p. array in that sector*/
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unsigned short unknown; /* some unknown value; usually 0;
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u16 index; /* index in c.p. array in that sector*/
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u16 unknown; /* some unknown value; usually 0;
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2 in Japanese version */
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} array[31]; /* unknown length */
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};
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@ -201,21 +198,21 @@ struct code_page_directory
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struct code_page_data
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{
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unsigned magic; /* 8945 21f7 */
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unsigned n_used; /* # elements used in c_p_data[] */
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unsigned bounds[3]; /* looks a bit like
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u32 magic; /* 8945 21f7 */
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u32 n_used; /* # elements used in c_p_data[] */
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u32 bounds[3]; /* looks a bit like
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(beg1,end1), (beg2,end2)
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one byte each */
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unsigned short offs[3]; /* offsets from start of sector
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u16 offs[3]; /* offsets from start of sector
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to start of c_p_data[ix] */
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struct {
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unsigned short ix; /* index */
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unsigned short code_page_number; /* code page number */
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unsigned short unknown; /* the same as in cp directory */
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unsigned char map[128]; /* upcase table for chars 80..ff */
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unsigned short zero2;
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u16 ix; /* index */
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u16 code_page_number; /* code page number */
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u16 unknown; /* the same as in cp directory */
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u8 map[128]; /* upcase table for chars 80..ff */
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u16 zero2;
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} code_page[3];
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unsigned char incognita[78];
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u8 incognita[78];
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};
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@ -255,8 +252,8 @@ struct code_page_data
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#define DNODE_MAGIC 0x77e40aae
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struct dnode {
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unsigned magic; /* 77e4 0aae */
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unsigned first_free; /* offset from start of dnode to
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u32 magic; /* 77e4 0aae */
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u32 first_free; /* offset from start of dnode to
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first free dir entry */
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unsigned root_dnode:1; /* Is it root dnode? */
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unsigned increment_me:31; /* some kind of activity counter?
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@ -265,11 +262,11 @@ struct dnode {
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secno up; /* (root dnode) directory's fnode
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(nonroot) parent dnode */
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dnode_secno self; /* pointer to this dnode */
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unsigned char dirent[2028]; /* one or more dirents */
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u8 dirent[2028]; /* one or more dirents */
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};
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struct hpfs_dirent {
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unsigned short length; /* offset to next dirent */
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u16 length; /* offset to next dirent */
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unsigned first: 1; /* set on phony ^A^A (".") entry */
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unsigned has_acl: 1;
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unsigned down: 1; /* down pointer present (after name) */
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@ -290,15 +287,15 @@ struct hpfs_dirent {
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unsigned flag15: 1;
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fnode_secno fnode; /* fnode giving allocation info */
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time32_t write_date; /* mtime */
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unsigned file_size; /* file length, bytes */
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u32 file_size; /* file length, bytes */
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time32_t read_date; /* atime */
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time32_t creation_date; /* ctime */
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unsigned ea_size; /* total EA length, bytes */
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u32 ea_size; /* total EA length, bytes */
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unsigned char no_of_acls : 3; /* number of ACL's */
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unsigned char reserver : 5;
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unsigned char ix; /* code page index (of filename), see
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u8 ix; /* code page index (of filename), see
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struct code_page_data */
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unsigned char namelen, name[1]; /* file name */
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u8 namelen, name[1]; /* file name */
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/* dnode_secno down; btree down pointer, if present,
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follows name on next word boundary, or maybe it
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precedes next dirent, which is on a word boundary. */
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@ -318,14 +315,14 @@ struct hpfs_dirent {
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struct bplus_leaf_node
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{
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unsigned file_secno; /* first file sector in extent */
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unsigned length; /* length, sectors */
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u32 file_secno; /* first file sector in extent */
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u32 length; /* length, sectors */
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secno disk_secno; /* first corresponding disk sector */
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};
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struct bplus_internal_node
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{
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unsigned file_secno; /* subtree maps sectors < this */
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u32 file_secno; /* subtree maps sectors < this */
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anode_secno down; /* pointer to subtree */
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};
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@ -346,10 +343,10 @@ struct bplus_header
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unsigned binary_search: 1; /* suggest binary search (unused) */
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unsigned internal: 1; /* 1 -> (internal) tree of anodes
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0 -> (leaf) list of extents */
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unsigned char fill[3];
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unsigned char n_free_nodes; /* free nodes in following array */
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unsigned char n_used_nodes; /* used nodes in following array */
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unsigned short first_free; /* offset from start of header to
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u8 fill[3];
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u8 n_free_nodes; /* free nodes in following array */
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u8 n_used_nodes; /* used nodes in following array */
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u16 first_free; /* offset from start of header to
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first free node in array */
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union {
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struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
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@ -369,19 +366,18 @@ struct bplus_header
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struct fnode
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{
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unsigned magic; /* f7e4 0aae */
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unsigned zero1[2]; /* read history */
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unsigned char len, name[15]; /* true length, truncated name */
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u32 magic; /* f7e4 0aae */
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u32 zero1[2]; /* read history */
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u8 len, name[15]; /* true length, truncated name */
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fnode_secno up; /* pointer to file's directory fnode */
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/*unsigned zero2[3];*/
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secno acl_size_l;
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secno acl_secno;
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unsigned short acl_size_s;
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char acl_anode;
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char zero2; /* history bit count */
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unsigned ea_size_l; /* length of disk-resident ea's */
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u16 acl_size_s;
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u8 acl_anode;
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u8 zero2; /* history bit count */
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u32 ea_size_l; /* length of disk-resident ea's */
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secno ea_secno; /* first sector of disk-resident ea's*/
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unsigned short ea_size_s; /* length of fnode-resident ea's */
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u16 ea_size_s; /* length of fnode-resident ea's */
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unsigned flag0: 1;
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unsigned ea_anode: 1; /* 1 -> ea_secno is an anode */
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@ -407,17 +403,16 @@ struct fnode
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struct bplus_internal_node internal[12];
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} u;
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unsigned file_size; /* file length, bytes */
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unsigned n_needea; /* number of EA's with NEEDEA set */
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char user_id[16]; /* unused */
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unsigned short ea_offs; /* offset from start of fnode
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u32 file_size; /* file length, bytes */
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u32 n_needea; /* number of EA's with NEEDEA set */
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u8 user_id[16]; /* unused */
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u16 ea_offs; /* offset from start of fnode
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to first fnode-resident ea */
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char dasd_limit_treshhold;
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char dasd_limit_delta;
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unsigned dasd_limit;
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unsigned dasd_usage;
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/*unsigned zero5[2];*/
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unsigned char ea[316]; /* zero or more EA's, packed together
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u8 dasd_limit_treshhold;
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u8 dasd_limit_delta;
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u32 dasd_limit;
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u32 dasd_usage;
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u8 ea[316]; /* zero or more EA's, packed together
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with no alignment padding.
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(Do not use this name, get here
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via fnode + ea_offs. I think.) */
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@ -430,7 +425,7 @@ struct fnode
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struct anode
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{
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unsigned magic; /* 37e4 0aae */
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u32 magic; /* 37e4 0aae */
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anode_secno self; /* pointer to this anode */
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secno up; /* parent anode or fnode */
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@ -440,7 +435,7 @@ struct anode
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struct bplus_internal_node internal[60];
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} u;
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unsigned fill[3]; /* unused */
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u32 fill[3]; /* unused */
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};
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@ -471,15 +466,15 @@ struct extended_attribute
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unsigned flag5: 1;
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unsigned flag6: 1;
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unsigned needea: 1; /* required ea */
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unsigned char namelen; /* length of name, bytes */
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unsigned short valuelen; /* length of value, bytes */
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unsigned char name[0];
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u8 namelen; /* length of name, bytes */
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u16 valuelen; /* length of value, bytes */
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u8 name[0];
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/*
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unsigned char name[namelen]; ascii attrib name
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unsigned char nul; terminating '\0', not counted
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unsigned char value[valuelen]; value, arbitrary
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u8 name[namelen]; ascii attrib name
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u8 nul; terminating '\0', not counted
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u8 value[valuelen]; value, arbitrary
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if this.indirect, valuelen is 8 and the value is
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unsigned length; real length of value, bytes
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u32 length; real length of value, bytes
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secno secno; sector address where it starts
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if this.anode, the above sector number is the root of an anode tree
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which points to the value.
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