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MacOS 8.1
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Win98
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DOS
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This file was processed as: Tape Archive
(archive/tar).
You can browse this item here: dmsdosfs
| Confidence | Program | Detection | Match Type | Support
|
|---|
| 100%
| dexvert
| Tape Archive (archive/tar)
| magic
| Supported |
| 100%
| file
| POSIX tar archive (GNU)
| default
| |
| 99%
| file
| POSIX tar archive (GNU), directory dmsdosfs-0.6.9b/, mode 40755 , uid 0 , gid 0 , size 0 , seconds 6177156202, user root, group root
| default
| |
| 98%
| file
| data
| default
| |
| 62%
| TrID
| TAR - Tape ARchive (GNU)
| default
| |
| 37%
| TrID
| TAR - Tape ARchive (directory)
| default
| |
| 100%
| siegfried
| x-fmt/265 Tape Archive Format
| default
| |
| 100%
| lsar
| Tar
| default
| |
| 100%
| gt2
| TAR Archiv gefunden (Auflistung ist deaktiviert)
| default
| |
| 100%
| disktype
| GNU tar archive
| default
| |
| 100%
| detectItEasy
| Archive: tar
| default
| |
| 100%
| binwalkID
| POSIX tar archive (GNU), owner user name: "-0.6.9b/"
| default
| |
| 100%
| xdgMime
| application/x-tar
| default
|
|
hex view+--------+-------------------------+-------------------------+--------+--------+
|00000000| 64 6d 73 64 6f 73 66 73 | 2d 30 2e 36 2e 39 62 2f |dmsdosfs|-0.6.9b/|
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|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00000050| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000060| 00 00 00 00 20 34 30 37 | 35 35 20 00 20 20 20 20 |.... 407|55 . |
|00000070| 20 30 20 00 20 20 20 20 | 20 30 20 00 20 20 20 20 | 0 . | 0 . |
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|00000090| 32 30 32 20 20 31 31 35 | 30 32 00 20 35 00 00 00 |202 115|02. 5...|
|000000a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000100| 00 75 73 74 61 72 20 20 | 00 72 6f 6f 74 00 00 00 |.ustar |.root...|
|00000110| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000120| 00 00 00 00 00 00 00 00 | 00 72 6f 6f 74 00 00 00 |........|.root...|
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|00000140| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000001b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000001d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000200| 64 6d 73 64 6f 73 66 73 | 2d 30 2e 36 2e 39 62 2f |dmsdosfs|-0.6.9b/|
|00000210| 4d 61 6b 65 66 69 6c 65 | 00 00 00 00 00 00 00 00 |Makefile|........|
|00000220| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000230| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000240| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000250| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000260| 00 00 00 00 31 30 30 36 | 34 34 20 00 20 20 20 20 |....1006|44 . |
|00000270| 20 30 20 00 20 20 20 20 | 20 30 20 00 20 20 20 20 | 0 . | 0 . |
|00000280| 20 20 20 31 36 36 34 20 | 20 36 31 36 31 32 32 37 | 1664 | 6161227|
|00000290| 31 32 32 20 20 31 33 32 | 33 37 00 20 30 00 00 00 |122 132|37. 0...|
|000002a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000300| 00 75 73 74 61 72 20 20 | 00 72 6f 6f 74 00 00 00 |.ustar |.root...|
|00000310| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000320| 00 00 00 00 00 00 00 00 | 00 72 6f 6f 74 00 00 00 |........|.root...|
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|00000380| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000003b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000400| 23 0a 23 20 4d 61 6b 65 | 66 69 6c 65 20 66 6f 72 |#.# Make|file for|
|00000410| 20 74 68 65 20 6c 69 6e | 75 78 20 44 4d 53 44 4f | the lin|ux DMSDO|
|00000420| 53 20 66 69 6c 65 73 79 | 73 74 65 6d 20 72 6f 75 |S filesy|stem rou|
|00000430| 74 69 6e 65 73 2e 0a 23 | 0a 23 20 4e 6f 74 65 21 |tines..#|.# Note!|
|00000440| 20 44 65 70 65 6e 64 65 | 6e 63 69 65 73 20 61 72 | Depende|ncies ar|
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|00000480| 20 72 65 6d 6f 76 65 73 | 20 61 6e 79 20 6f 6c 64 | removes| any old|
|00000490| 20 64 65 70 65 6e 64 65 | 6e 63 69 65 73 2e 20 44 | depende|ncies. D|
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|00000500| 20 32 21 20 54 68 65 20 | 43 46 4c 41 47 53 20 64 | 2! The |CFLAGS d|
|00000510| 65 66 69 6e 69 74 69 6f | 6e 73 20 61 72 65 20 6e |efinitio|ns are n|
|00000520| 6f 77 20 69 6e 20 74 68 | 65 20 6d 61 69 6e 20 6d |ow in th|e main m|
|00000530| 61 6b 65 66 69 6c 65 2e | 2e 2e 0a 0a 23 43 46 4c |akefile.|....#CFL|
|00000540| 41 47 53 20 3d 20 2d 44 | 5f 5f 4b 45 52 4e 45 4c |AGS = -D|__KERNEL|
|00000550| 5f 5f 20 2d 49 2f 75 73 | 72 2f 73 72 63 2f 6c 69 |__ -I/us|r/src/li|
|00000560| 6e 75 78 2f 69 6e 63 6c | 75 64 65 20 2d 57 61 6c |nux/incl|ude -Wal|
|00000570| 6c 20 2d 57 73 74 72 69 | 63 74 2d 70 72 6f 74 6f |l -Wstri|ct-proto|
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|00000590| 20 20 2d 4f 32 20 2d 66 | 6f 6d 69 74 2d 66 72 61 | -O2 -f|omit-fra|
|000005a0| 6d 65 2d 70 6f 69 6e 74 | 65 72 20 2d 6d 34 38 36 |me-point|er -m486|
|000005b0| 20 2d 73 61 76 65 2d 74 | 65 6d 70 73 0a 0a 2e 63 | -save-t|emps...c|
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|000005e0| 0a 09 24 28 43 43 29 20 | 24 28 43 46 4c 41 47 53 |..$(CC) |$(CFLAGS|
|000005f0| 29 20 2d 63 20 24 3c 0a | 2e 73 2e 6f 3a 0a 09 24 |) -c $<.|.s.o:..$|
|00000600| 28 41 53 29 20 2d 6f 20 | 24 2a 2e 6f 20 24 3c 0a |(AS) -o |$*.o $<.|
|00000610| 0a 4f 42 4a 53 3d 09 64 | 6d 73 64 6f 73 5f 73 74 |.OBJS=.d|msdos_st|
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|00000630| 20 64 6d 73 64 6f 73 5f | 64 65 63 2e 6f 20 64 6d | dmsdos_|dec.o dm|
|00000640| 73 64 6f 73 5f 61 6c 6c | 6f 63 2e 6f 20 64 6d 73 |sdos_all|oc.o dms|
|00000650| 64 6f 73 5f 77 72 69 74 | 65 2e 6f 20 5c 0a 20 20 |dos_writ|e.o \. |
|00000660| 20 20 20 20 20 20 64 6d | 73 64 6f 73 5f 63 6f 6d | dm|sdos_com|
|00000670| 70 72 2e 6f 20 64 6d 73 | 64 6f 73 5f 69 6f 63 74 |pr.o dms|dos_ioct|
|00000680| 6c 2e 6f 20 64 6d 73 64 | 6f 73 5f 72 65 61 64 2e |l.o dmsd|os_read.|
|00000690| 6f 20 64 6d 73 64 6f 73 | 5f 6c 66 6e 2e 6f 20 5c |o dmsdos|_lfn.o \|
|000006a0| 0a 20 20 20 20 20 20 20 | 20 64 6d 73 64 6f 73 5f |. | dmsdos_|
|000006b0| 66 69 78 64 69 72 2e 6f | 0a 0a 64 6d 73 64 6f 73 |fixdir.o|..dmsdos|
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|00000710| 73 2f 64 6d 73 64 6f 73 | 2e 6f 20 24 28 54 4f 50 |s/dmsdos|.o $(TOP|
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|00000780| 28 2e 64 65 70 65 6e 64 | 2c 24 28 77 69 6c 64 63 |(.depend|,$(wildc|
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|00000800| 64 6d 73 64 6f 73 66 73 | 2d 30 2e 36 2e 39 62 2f |dmsdosfs|-0.6.9b/|
|00000810| 64 6d 73 64 6f 73 5f 61 | 6c 6c 6f 63 2e 63 00 00 |dmsdos_a|lloc.c..|
|00000820| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000830| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000840| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000850| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000860| 00 00 00 00 31 30 30 36 | 34 34 20 00 20 20 20 20 |....1006|44 . |
|00000870| 20 30 20 00 20 20 20 20 | 20 30 20 00 20 20 20 20 | 0 . | 0 . |
|00000880| 20 20 33 36 35 32 32 20 | 20 36 31 37 37 31 34 37 | 36522 | 6177147|
|00000890| 31 33 32 20 20 31 34 34 | 34 30 00 20 30 00 00 00 |132 144|40. 0...|
|000008a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00000900| 00 75 73 74 61 72 20 20 | 00 72 6f 6f 74 00 00 00 |.ustar |.root...|
|00000910| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000920| 00 00 00 00 00 00 00 00 | 00 72 6f 6f 74 00 00 00 |........|.root...|
|00000930| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000009a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a00| 2f 2a 20 0a 6c 69 6e 75 | 78 2f 66 73 2f 64 6d 73 |/* .linu|x/fs/dms|
|00000a10| 64 6f 73 2f 64 6d 73 64 | 6f 73 5f 61 6c 6c 6f 63 |dos/dmsd|os_alloc|
|00000a20| 2e 63 0a 0a 44 4d 53 44 | 4f 53 20 66 69 6c 65 73 |.c..DMSD|OS files|
|00000a30| 79 73 74 65 6d 3a 20 63 | 6c 75 73 74 65 72 20 61 |ystem: c|luster a|
|00000a40| 6c 6c 6f 63 61 74 69 6f | 6e 20 66 75 6e 63 74 69 |llocatio|n functi|
|00000a50| 6f 6e 73 0a 0a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |ons..***|********|
|00000a60| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000a70| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000a80| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000a90| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000aa0| 2a 2a 2a 0a 44 4d 53 44 | 4f 53 20 28 44 6f 75 62 |***.DMSD|OS (Doub|
|00000ab0| 6c 65 73 70 61 63 65 2f | 44 72 69 76 65 73 70 61 |lespace/|Drivespa|
|00000ac0| 63 65 20 63 6f 6d 70 72 | 65 73 73 65 64 20 4d 53 |ce compr|essed MS|
|00000ad0| 44 4f 53 20 66 69 6c 65 | 73 79 73 74 65 6d 29 20 |DOS file|system) |
|00000ae0| 66 6f 72 20 4c 69 6e 75 | 78 0a 77 72 69 74 74 65 |for Linu|x.writte|
|00000af0| 6e 20 31 39 39 35 2c 31 | 39 39 36 20 62 79 20 46 |n 1995,1|996 by F|
|00000b00| 72 61 6e 6b 20 47 6f 63 | 6b 65 6c 0a 0a 20 20 20 |rank Goc|kel.. |
|00000b10| 20 28 43 29 20 43 6f 70 | 79 72 69 67 68 74 20 31 | (C) Cop|yright 1|
|00000b20| 39 39 35 2c 31 39 39 36 | 20 62 79 20 46 72 61 6e |995,1996| by Fran|
|00000b30| 6b 20 47 6f 63 6b 65 6c | 0a 0a 53 6f 6d 65 20 63 |k Gockel|..Some c|
|00000b40| 6f 64 65 20 6f 66 20 74 | 68 65 20 64 6d 73 64 6f |ode of t|he dmsdo|
|00000b50| 73 20 66 69 6c 65 73 79 | 73 74 65 6d 20 68 61 73 |s filesy|stem has|
|00000b60| 20 62 65 65 6e 20 63 6f | 70 69 65 64 20 66 72 6f | been co|pied fro|
|00000b70| 6d 20 74 68 65 20 6d 73 | 64 6f 73 20 66 69 6c 65 |m the ms|dos file|
|00000b80| 73 79 73 74 65 6d 0a 73 | 6f 20 74 68 65 72 65 20 |system.s|o there |
|00000b90| 61 72 65 20 74 68 65 20 | 66 6f 6c 6c 6f 77 69 6e |are the |followin|
|00000ba0| 67 20 61 64 64 69 74 69 | 6f 6e 61 6c 20 63 6f 70 |g additi|onal cop|
|00000bb0| 79 72 69 67 68 74 73 3a | 0a 0a 20 20 20 20 28 43 |yrights:|.. (C|
|00000bc0| 29 20 43 6f 70 79 72 69 | 67 68 74 20 31 39 39 32 |) Copyri|ght 1992|
|00000bd0| 2c 31 39 39 33 20 62 79 | 20 57 65 72 6e 65 72 20 |,1993 by| Werner |
|00000be0| 41 6c 6d 65 73 62 65 72 | 67 65 72 20 28 6d 73 64 |Almesber|ger (msd|
|00000bf0| 6f 73 20 66 69 6c 65 73 | 79 73 74 65 6d 29 0a 20 |os files|ystem). |
|00000c00| 20 20 20 28 43 29 20 43 | 6f 70 79 72 69 67 68 74 | (C) C|opyright|
|00000c10| 20 31 39 39 34 2c 31 39 | 39 35 20 62 79 20 4a 61 | 1994,19|95 by Ja|
|00000c20| 63 71 75 65 73 20 47 65 | 6c 69 6e 61 73 20 28 6d |cques Ge|linas (m|
|00000c30| 6d 61 70 20 63 6f 64 65 | 29 0a 20 20 20 20 28 43 |map code|). (C|
|00000c40| 29 20 43 6f 70 79 72 69 | 67 68 74 20 31 39 39 32 |) Copyri|ght 1992|
|00000c50| 2d 31 39 39 35 20 62 79 | 20 4c 69 6e 75 73 20 54 |-1995 by| Linus T|
|00000c60| 6f 72 76 61 6c 64 73 0a | 0a 54 68 65 20 44 4d 53 |orvalds.|.The DMS|
|00000c70| 44 4f 53 20 66 69 6c 65 | 73 79 73 74 65 6d 20 77 |DOS file|system w|
|00000c80| 61 73 20 69 6e 73 70 69 | 72 65 64 20 62 79 20 74 |as inspi|red by t|
|00000c90| 68 65 20 54 48 53 20 66 | 69 6c 65 73 79 73 74 65 |he THS f|ilesyste|
|00000ca0| 6d 20 28 61 20 73 69 6d | 70 6c 65 20 64 6f 75 62 |m (a sim|ple doub|
|00000cb0| 6c 65 73 70 61 63 65 0a | 44 53 2d 30 2d 32 20 63 |lespace.|DS-0-2 c|
|00000cc0| 6f 6d 70 72 65 73 73 65 | 64 20 72 65 61 64 2d 6f |ompresse|d read-o|
|00000cd0| 6e 6c 79 20 66 69 6c 65 | 73 79 73 74 65 6d 29 20 |nly file|system) |
|00000ce0| 77 72 69 74 74 65 6e 20 | 31 39 39 34 20 62 79 20 |written |1994 by |
|00000cf0| 54 68 6f 6d 61 73 20 53 | 63 68 65 75 65 72 6d 61 |Thomas S|cheuerma|
|00000d00| 6e 6e 2e 0a 0a 54 68 65 | 20 44 4d 53 44 4f 53 20 |nn...The| DMSDOS |
|00000d10| 66 69 6c 65 73 79 73 74 | 65 6d 20 69 73 20 64 69 |filesyst|em is di|
|00000d20| 73 74 72 69 62 75 74 65 | 64 20 75 6e 64 65 72 20 |stribute|d under |
|00000d30| 74 68 65 20 47 6e 75 20 | 47 65 6e 65 72 61 6c 20 |the Gnu |General |
|00000d40| 50 75 62 6c 69 63 20 4c | 69 63 65 6e 63 65 2e 0a |Public L|icence..|
|00000d50| 53 65 65 20 66 69 6c 65 | 20 43 4f 50 59 49 4e 47 |See file| COPYING|
|00000d60| 20 66 6f 72 20 64 65 74 | 61 69 6c 73 2e 0a 2a 2a | for det|ails..**|
|00000d70| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000d80| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000d90| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000da0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000db0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 0a 0a 2a 2f |********|****..*/|
|00000dc0| 0a 0a 23 69 6e 63 6c 75 | 64 65 20 3c 6c 69 6e 75 |..#inclu|de <linu|
|00000dd0| 78 2f 66 73 2e 68 3e 0a | 23 69 6e 63 6c 75 64 65 |x/fs.h>.|#include|
|00000de0| 20 3c 6c 69 6e 75 78 2f | 65 72 72 6e 6f 2e 68 3e | <linux/|errno.h>|
|00000df0| 0a 23 69 6e 63 6c 75 64 | 65 20 3c 6c 69 6e 75 78 |.#includ|e <linux|
|00000e00| 2f 6b 65 72 6e 65 6c 2e | 68 3e 0a 23 69 6e 63 6c |/kernel.|h>.#incl|
|00000e10| 75 64 65 20 3c 6c 69 6e | 75 78 2f 6d 73 64 6f 73 |ude <lin|ux/msdos|
|00000e20| 5f 66 73 2e 68 3e 0a 23 | 69 6e 63 6c 75 64 65 20 |_fs.h>.#|include |
|00000e30| 3c 6c 69 6e 75 78 2f 64 | 6d 73 64 6f 73 5f 66 73 |<linux/d|msdos_fs|
|00000e40| 2e 68 3e 0a 23 69 6e 63 | 6c 75 64 65 20 3c 6c 69 |.h>.#inc|lude <li|
|00000e50| 6e 75 78 2f 73 74 72 69 | 6e 67 2e 68 3e 0a 23 69 |nux/stri|ng.h>.#i|
|00000e60| 6e 63 6c 75 64 65 20 3c | 6c 69 6e 75 78 2f 73 63 |nclude <|linux/sc|
|00000e70| 68 65 64 2e 68 3e 0a 0a | 65 78 74 65 72 6e 20 44 |hed.h>..|extern D|
|00000e80| 62 6c 73 62 20 64 62 6c | 73 62 5b 5d 3b 0a 0a 23 |blsb dbl|sb[];..#|
|00000e90| 64 65 66 69 6e 65 20 4e | 45 41 52 5f 41 52 45 41 |define N|EAR_AREA|
|00000ea0| 20 35 31 32 0a 2f 2a 20 | 6e 6f 20 63 68 61 6e 67 | 512./* |no chang|
|00000eb0| 65 20 66 6f 72 20 64 6f | 75 62 6c 65 73 70 61 63 |e for do|ublespac|
|00000ec0| 65 2c 20 62 75 74 20 66 | 69 78 65 73 20 64 72 69 |e, but f|ixes dri|
|00000ed0| 76 65 73 70 61 63 65 20 | 33 20 70 72 6f 62 6c 65 |vespace |3 proble|
|00000ee0| 6d 73 20 28 77 61 73 20 | 35 30 29 20 2a 2f 0a 23 |ms (was |50) */.#|
|00000ef0| 64 65 66 69 6e 65 20 42 | 49 47 5f 48 4f 4c 45 20 |define B|IG_HOLE |
|00000f00| 28 64 62 6c 73 62 5b 63 | 76 66 6e 72 5d 2e 73 5f |(dblsb[c|vfnr].s_|
|00000f10| 73 65 63 74 70 65 72 63 | 6c 75 73 74 2a 33 2b 32 |sectperc|lust*3+2|
|00000f20| 29 20 0a 0a 73 74 72 75 | 63 74 20 77 61 69 74 5f |) ..stru|ct wait_|
|00000f30| 71 75 65 75 65 20 2a 20 | 61 6c 6c 6f 63 5f 77 61 |queue * |alloc_wa|
|00000f40| 69 74 20 3d 20 4e 55 4c | 4c 3b 0a 69 6e 74 20 61 |it = NUL|L;.int a|
|00000f50| 6c 6c 6f 63 5f 6c 6f 63 | 6b 3d 30 3b 0a 76 6f 69 |lloc_loc|k=0;.voi|
|00000f60| 64 20 6c 6f 63 6b 5f 61 | 6c 6c 6f 63 28 76 6f 69 |d lock_a|lloc(voi|
|00000f70| 64 29 0a 7b 20 77 68 69 | 6c 65 28 61 6c 6c 6f 63 |d).{ whi|le(alloc|
|00000f80| 5f 6c 6f 63 6b 29 73 6c | 65 65 70 5f 6f 6e 28 26 |_lock)sl|eep_on(&|
|00000f90| 61 6c 6c 6f 63 5f 77 61 | 69 74 29 3b 0a 20 20 61 |alloc_wa|it);. a|
|00000fa0| 6c 6c 6f 63 5f 6c 6f 63 | 6b 3d 31 3b 0a 7d 0a 76 |lloc_loc|k=1;.}.v|
|00000fb0| 6f 69 64 20 75 6e 6c 6f | 63 6b 5f 61 6c 6c 6f 63 |oid unlo|ck_alloc|
|00000fc0| 28 76 6f 69 64 29 0a 7b | 20 61 6c 6c 6f 63 5f 6c |(void).{| alloc_l|
|00000fd0| 6f 63 6b 3d 30 3b 0a 20 | 20 77 61 6b 65 5f 75 70 |ock=0;. | wake_up|
|00000fe0| 28 26 61 6c 6c 6f 63 5f | 77 61 69 74 29 3b 0a 7d |(&alloc_|wait);.}|
|00000ff0| 0a 0a 73 74 72 75 63 74 | 20 77 61 69 74 5f 71 75 |..struct| wait_qu|
|00001000| 65 75 65 20 2a 20 72 65 | 61 64 77 72 69 74 65 5f |eue * re|adwrite_|
|00001010| 77 61 69 74 20 3d 20 4e | 55 4c 4c 3b 0a 69 6e 74 |wait = N|ULL;.int|
|00001020| 20 72 65 61 64 77 72 69 | 74 65 5f 6c 6f 63 6b 3d | readwri|te_lock=|
|00001030| 30 3b 0a 76 6f 69 64 20 | 6c 6f 63 6b 5f 72 65 61 |0;.void |lock_rea|
|00001040| 64 77 72 69 74 65 28 76 | 6f 69 64 29 0a 7b 20 77 |dwrite(v|oid).{ w|
|00001050| 68 69 6c 65 28 72 65 61 | 64 77 72 69 74 65 5f 6c |hile(rea|dwrite_l|
|00001060| 6f 63 6b 29 73 6c 65 65 | 70 5f 6f 6e 28 26 72 65 |ock)slee|p_on(&re|
|00001070| 61 64 77 72 69 74 65 5f | 77 61 69 74 29 3b 0a 20 |adwrite_|wait);. |
|00001080| 20 72 65 61 64 77 72 69 | 74 65 5f 6c 6f 63 6b 3d | readwri|te_lock=|
|00001090| 31 3b 0a 7d 0a 76 6f 69 | 64 20 75 6e 6c 6f 63 6b |1;.}.voi|d unlock|
|000010a0| 5f 72 65 61 64 77 72 69 | 74 65 28 76 6f 69 64 29 |_readwri|te(void)|
|000010b0| 0a 7b 20 72 65 61 64 77 | 72 69 74 65 5f 6c 6f 63 |.{ readw|rite_loc|
|000010c0| 6b 3d 30 3b 0a 20 20 77 | 61 6b 65 5f 75 70 28 26 |k=0;. w|ake_up(&|
|000010d0| 72 65 61 64 77 72 69 74 | 65 5f 77 61 69 74 29 3b |readwrit|e_wait);|
|000010e0| 0a 7d 0a 0a 76 6f 69 64 | 20 66 72 65 65 5f 63 68 |.}..void| free_ch|
|000010f0| 61 69 6e 28 73 74 72 75 | 63 74 20 73 75 70 65 72 |ain(stru|ct super|
|00001100| 5f 62 6c 6f 63 6b 2a 73 | 62 2c 20 69 6e 74 20 63 |_block*s|b, int c|
|00001110| 6c 75 73 74 65 72 6e 72 | 2c 20 69 6e 74 20 63 76 |lusternr|, int cv|
|00001120| 66 6e 72 29 0a 7b 20 0a | 20 20 4d 64 66 61 74 5f |fnr).{ .| Mdfat_|
|00001130| 65 6e 74 72 79 20 6d 64 | 65 2c 64 75 6d 6d 79 2c |entry md|e,dummy,|
|00001140| 6e 65 77 6d 64 65 3b 0a | 20 20 69 6e 74 20 6e 65 |newmde;.| int ne|
|00001150| 77 76 61 6c 3d 30 3b 0a | 20 20 69 6e 74 20 69 3b |wval=0;.| int i;|
|00001160| 0a 20 20 69 6e 74 20 73 | 65 6b 74 6f 72 73 3b 0a |. int s|ektors;.|
|00001170| 20 20 69 6e 74 20 73 65 | 6b 74 6f 72 6e 72 3b 0a | int se|ktornr;.|
|00001180| 20 20 69 6e 74 20 6d 65 | 72 6b 3b 0a 20 20 0a 20 | int me|rk;. . |
|00001190| 20 6c 6f 63 6b 5f 61 6c | 6c 6f 63 28 29 3b 0a 20 | lock_al|loc();. |
|000011a0| 20 77 68 69 6c 65 28 63 | 6c 75 73 74 65 72 6e 72 | while(c|lusternr|
|000011b0| 3e 30 29 0a 20 20 7b 20 | 2f 2a 70 72 69 6e 74 6b |>0). { |/*printk|
|000011c0| 28 22 44 4d 53 44 4f 53 | 3a 20 66 72 65 65 20 63 |("DMSDOS|: free c|
|000011d0| 68 61 69 6e 3a 20 66 72 | 65 65 69 6e 67 20 63 6c |hain: fr|eeing cl|
|000011e0| 75 73 74 65 72 20 25 64 | 5c 6e 22 2c 63 6c 75 73 |uster %d|\n",clus|
|000011f0| 74 65 72 6e 72 29 3b 2a | 2f 0a 20 20 20 20 2f 2a |ternr);*|/. /*|
|00001200| 20 72 65 61 64 20 6d 64 | 66 61 74 20 65 6e 74 72 | read md|fat entr|
|00001210| 79 20 61 6e 64 20 63 6c | 65 61 72 20 2a 2f 0a 20 |y and cl|ear */. |
|00001220| 20 20 20 6e 65 77 6d 64 | 65 2e 73 65 63 74 6f 72 | newmd|e.sector|
|00001230| 5f 6d 69 6e 75 73 5f 31 | 3d 30 3b 0a 20 20 20 20 |_minus_1|=0;. |
|00001240| 6e 65 77 6d 64 65 2e 73 | 69 7a 65 5f 6c 6f 5f 6d |newmde.s|ize_lo_m|
|00001250| 69 6e 75 73 5f 31 3d 30 | 3b 0a 20 20 20 20 6e 65 |inus_1=0|;. ne|
|00001260| 77 6d 64 65 2e 73 69 7a | 65 5f 68 69 5f 6d 69 6e |wmde.siz|e_hi_min|
|00001270| 75 73 5f 31 3d 30 3b 0a | 20 20 20 20 6e 65 77 6d |us_1=0;.| newm|
|00001280| 64 65 2e 66 6c 61 67 73 | 3d 30 3b 0a 20 20 20 20 |de.flags|=0;. |
|00001290| 64 62 6c 5f 6d 64 66 61 | 74 5f 76 61 6c 75 65 28 |dbl_mdfa|t_value(|
|000012a0| 73 62 2c 63 6c 75 73 74 | 65 72 6e 72 2c 63 76 66 |sb,clust|ernr,cvf|
|000012b0| 6e 72 2c 4e 55 4c 4c 2c | 26 6d 64 65 29 3b 0a 20 |nr,NULL,|&mde);. |
|000012c0| 20 20 20 64 62 6c 5f 6d | 64 66 61 74 5f 76 61 6c | dbl_m|dfat_val|
|000012d0| 75 65 28 73 62 2c 63 6c | 75 73 74 65 72 6e 72 2c |ue(sb,cl|usternr,|
|000012e0| 63 76 66 6e 72 2c 26 6e | 65 77 6d 64 65 2c 26 64 |cvfnr,&n|ewmde,&d|
|000012f0| 75 6d 6d 79 29 3b 0a 20 | 20 20 20 73 65 6b 74 6f |ummy);. | sekto|
|00001300| 72 73 3d 6d 64 65 2e 73 | 69 7a 65 5f 6c 6f 5f 6d |rs=mde.s|ize_lo_m|
|00001310| 69 6e 75 73 5f 31 2b 31 | 3b 0a 20 20 20 20 73 65 |inus_1+1|;. se|
|00001320| 6b 74 6f 72 6e 72 3d 6d | 64 65 2e 73 65 63 74 6f |ktornr=m|de.secto|
|00001330| 72 5f 6d 69 6e 75 73 5f | 31 2b 31 3b 0a 20 20 20 |r_minus_|1+1;. |
|00001340| 20 69 66 28 6d 64 65 2e | 66 6c 61 67 73 26 32 29 | if(mde.|flags&2)|
|00001350| 0a 20 20 20 20 7b 0a 20 | 20 20 20 20 20 2f 2a 20 |. {. | /* |
|00001360| 66 72 65 65 20 73 65 63 | 74 6f 72 73 20 69 6e 20 |free sec|tors in |
|00001370| 62 69 74 66 61 74 20 2a | 2f 0a 20 20 20 20 20 20 |bitfat *|/. |
|00001380| 66 6f 72 28 69 3d 30 3b | 69 3c 73 65 6b 74 6f 72 |for(i=0;|i<sektor|
|00001390| 73 3b 2b 2b 69 29 64 62 | 6c 5f 62 69 74 66 61 74 |s;++i)db|l_bitfat|
|000013a0| 5f 76 61 6c 75 65 28 73 | 62 2c 73 65 6b 74 6f 72 |_value(s|b,sektor|
|000013b0| 6e 72 2b 69 2c 63 76 66 | 6e 72 2c 26 6e 65 77 76 |nr+i,cvf|nr,&newv|
|000013c0| 61 6c 29 3b 0a 20 20 20 | 20 20 20 64 62 6c 73 62 |al);. | dblsb|
|000013d0| 5b 63 76 66 6e 72 5d 2e | 73 5f 66 75 6c 6c 3d 30 |[cvfnr].|s_full=0|
|000013e0| 3b 0a 20 20 20 20 7d 0a | 20 20 20 20 65 6c 73 65 |;. }.| else|
|000013f0| 0a 20 20 20 20 7b 20 70 | 72 69 6e 74 6b 28 22 44 |. { p|rintk("D|
|00001400| 4d 53 44 4f 53 3a 20 43 | 56 46 20 25 64 3a 20 69 |MSDOS: C|VF %d: i|
|00001410| 6e 76 61 6c 69 64 20 4d | 44 46 41 54 20 65 6e 74 |nvalid M|DFAT ent|
|00001420| 72 79 20 66 6f 72 20 63 | 6c 75 73 74 65 72 20 25 |ry for c|luster %|
|00001430| 64 2c 20 7a 65 72 6f 69 | 6e 67 20 69 74 20 2d 20 |d, zeroi|ng it - |
|00001440| 63 68 65 63 6b 20 66 69 | 6c 65 73 79 73 74 65 6d |check fi|lesystem|
|00001450| 5c 6e 22 2c 0a 20 20 20 | 20 20 20 20 20 20 20 20 |\n",. | |
|00001460| 20 20 63 76 66 6e 72 2b | 31 2c 63 6c 75 73 74 65 | cvfnr+|1,cluste|
|00001470| 72 6e 72 29 3b 0a 20 20 | 20 20 7d 0a 20 20 20 20 |rnr);. | }. |
|00001480| 2f 2a 20 72 65 61 64 20 | 66 61 74 20 65 6e 74 72 |/* read |fat entr|
|00001490| 79 20 61 6e 64 20 63 6c | 65 61 72 20 2a 2f 0a 20 |y and cl|ear */. |
|000014a0| 20 20 20 6d 65 72 6b 3d | 63 6c 75 73 74 65 72 6e | merk=|clustern|
|000014b0| 72 3b 0a 20 20 20 20 63 | 6c 75 73 74 65 72 6e 72 |r;. c|lusternr|
|000014c0| 3d 64 62 6c 5f 66 61 74 | 5f 6e 65 78 74 63 6c 75 |=dbl_fat|_nextclu|
|000014d0| 73 74 65 72 28 73 62 2c | 63 6c 75 73 74 65 72 6e |ster(sb,|clustern|
|000014e0| 72 2c 63 76 66 6e 72 2c | 4e 55 4c 4c 29 3b 0a 20 |r,cvfnr,|NULL);. |
|000014f0| 20 20 20 64 62 6c 5f 66 | 61 74 5f 6e 65 78 74 63 | dbl_f|at_nextc|
|00001500| 6c 75 73 74 65 72 28 73 | 62 2c 6d 65 72 6b 2c 63 |luster(s|b,merk,c|
|00001510| 76 66 6e 72 2c 26 6e 65 | 77 76 61 6c 29 3b 0a 20 |vfnr,&ne|wval);. |
|00001520| 20 7d 0a 20 20 75 6e 6c | 6f 63 6b 5f 61 6c 6c 6f | }. unl|ock_allo|
|00001530| 63 28 29 3b 0a 7d 0a 0a | 69 6e 74 20 66 69 6e 64 |c();.}..|int find|
|00001540| 5f 66 72 65 65 5f 62 69 | 74 66 61 74 28 73 74 72 |_free_bi|tfat(str|
|00001550| 75 63 74 20 73 75 70 65 | 72 5f 62 6c 6f 63 6b 2a |uct supe|r_block*|
|00001560| 73 62 2c 20 69 6e 74 20 | 73 65 6b 74 6f 72 6e 72 |sb, int |sektornr|
|00001570| 2c 69 6e 74 20 63 76 66 | 6e 72 2c 20 69 6e 74 20 |,int cvf|nr, int |
|00001580| 73 69 7a 65 29 0a 7b 20 | 69 6e 74 20 74 65 73 74 |size).{ |int test|
|00001590| 73 65 6b 3b 0a 20 20 69 | 6e 74 20 69 3b 0a 0a 20 |sek;. i|nt i;.. |
|000015a0| 20 69 66 28 73 65 6b 74 | 6f 72 6e 72 3e 3d 64 62 | if(sekt|ornr>=db|
|000015b0| 6c 73 62 5b 63 76 66 6e | 72 5d 2e 73 5f 64 61 74 |lsb[cvfn|r].s_dat|
|000015c0| 61 73 74 61 72 74 26 26 | 73 65 6b 74 6f 72 6e 72 |astart&&|sektornr|
|000015d0| 3c 3d 64 62 6c 73 62 5b | 63 76 66 6e 72 5d 2e 73 |<=dblsb[|cvfnr].s|
|000015e0| 5f 64 61 74 61 65 6e 64 | 2d 73 69 7a 65 29 0a 20 |_dataend|-size). |
|000015f0| 20 7b 20 2f 2a 20 73 65 | 61 72 63 68 20 65 78 61 | { /* se|arch exa|
|00001600| 63 74 6c 79 20 66 69 74 | 74 69 6e 67 20 68 6f 6c |ctly fit|ting hol|
|00001610| 65 20 6e 65 61 72 20 73 | 65 6b 74 6f 72 6e 72 20 |e near s|ektornr |
|00001620| 2a 2f 0a 20 20 20 20 74 | 65 73 74 73 65 6b 3d 73 |*/. t|estsek=s|
|00001630| 65 6b 74 6f 72 6e 72 3b | 20 20 0a 20 20 20 20 77 |ektornr;| . w|
|00001640| 68 69 6c 65 28 74 65 73 | 74 73 65 6b 3c 73 65 6b |hile(tes|tsek<sek|
|00001650| 74 6f 72 6e 72 2b 4e 45 | 41 52 5f 41 52 45 41 29 |tornr+NE|AR_AREA)|
|00001660| 0a 20 20 20 20 7b 20 69 | 66 28 64 62 6c 5f 62 69 |. { i|f(dbl_bi|
|00001670| 74 66 61 74 5f 76 61 6c | 75 65 28 73 62 2c 74 65 |tfat_val|ue(sb,te|
|00001680| 73 74 73 65 6b 2c 63 76 | 66 6e 72 2c 4e 55 4c 4c |stsek,cv|fnr,NULL|
|00001690| 29 29 0a 20 20 20 20 20 | 20 7b 20 2b 2b 74 65 73 |)). | { ++tes|
|000016a0| 74 73 65 6b 3b 0a 20 20 | 20 20 20 20 20 20 63 6f |tsek;. | co|
|000016b0| 6e 74 69 6e 75 65 3b 0a | 20 20 20 20 20 20 7d 0a |ntinue;.| }.|
|000016c0| 20 20 20 20 20 20 69 3d | 31 3b 0a 20 20 20 20 20 | i=|1;. |
|000016d0| 20 77 68 69 6c 65 28 69 | 3c 3d 73 69 7a 65 26 26 | while(i|<=size&&|
|000016e0| 64 62 6c 5f 62 69 74 66 | 61 74 5f 76 61 6c 75 65 |dbl_bitf|at_value|
|000016f0| 28 73 62 2c 74 65 73 74 | 73 65 6b 2b 69 2c 63 76 |(sb,test|sek+i,cv|
|00001700| 66 6e 72 2c 4e 55 4c 4c | 29 3d 3d 30 29 2b 2b 69 |fnr,NULL|)==0)++i|
|00001710| 3b 0a 20 20 20 20 20 20 | 69 66 28 69 3d 3d 73 69 |;. |if(i==si|
|00001720| 7a 65 29 0a 20 20 20 20 | 20 20 7b 20 64 62 6c 73 |ze). | { dbls|
|00001730| 62 5b 63 76 66 6e 72 5d | 2e 73 5f 66 75 6c 6c 3d |b[cvfnr]|.s_full=|
|00001740| 30 3b 20 0a 20 20 20 20 | 20 20 20 20 72 65 74 75 |0; . | retu|
|00001750| 72 6e 20 74 65 73 74 73 | 65 6b 3b 0a 20 20 20 20 |rn tests|ek;. |
|00001760| 20 20 7d 0a 20 20 20 20 | 20 20 74 65 73 74 73 65 | }. | testse|
|00001770| 6b 2b 3d 69 3b 0a 20 20 | 20 20 7d 0a 20 20 20 20 |k+=i;. | }. |
|00001780| 74 65 73 74 73 65 6b 3d | 73 65 6b 74 6f 72 6e 72 |testsek=|sektornr|
|00001790| 3b 0a 20 20 20 20 77 68 | 69 6c 65 28 74 65 73 74 |;. wh|ile(test|
|000017a0| 73 65 6b 3e 73 65 6b 74 | 6f 72 6e 72 2d 4e 45 41 |sek>sekt|ornr-NEA|
|000017b0| 52 5f 41 52 45 41 29 0a | 20 20 20 20 7b 20 69 66 |R_AREA).| { if|
|000017c0| 28 64 62 6c 5f 62 69 74 | 66 61 74 5f 76 61 6c 75 |(dbl_bit|fat_valu|
|000017d0| 65 28 73 62 2c 74 65 73 | 74 73 65 6b 2c 63 76 66 |e(sb,tes|tsek,cvf|
|000017e0| 6e 72 2c 4e 55 4c 4c 29 | 29 0a 20 20 20 20 20 20 |nr,NULL)|). |
|000017f0| 7b 20 2d 2d 74 65 73 74 | 73 65 6b 3b 0a 20 20 20 |{ --test|sek;. |
|00001800| 20 20 20 20 20 63 6f 6e | 74 69 6e 75 65 3b 0a 20 | con|tinue;. |
|00001810| 20 20 20 20 20 7d 0a 20 | 20 20 20 20 20 69 3d 31 | }. | i=1|
|00001820| 3b 0a 20 20 20 20 20 20 | 77 68 69 6c 65 28 69 3c |;. |while(i<|
|00001830| 3d 73 69 7a 65 26 26 64 | 62 6c 5f 62 69 74 66 61 |=size&&d|bl_bitfa|
|00001840| 74 5f 76 61 6c 75 65 28 | 73 62 2c 74 65 73 74 73 |t_value(|sb,tests|
|00001850| 65 6b 2d 69 2c 63 76 66 | 6e 72 2c 4e 55 4c 4c 29 |ek-i,cvf|nr,NULL)|
|00001860| 3d 3d 30 29 2b 2b 69 3b | 0a 20 20 20 20 20 20 69 |==0)++i;|. i|
|00001870| 66 28 69 3d 3d 73 69 7a | 65 29 0a 20 20 20 20 20 |f(i==siz|e). |
|00001880| 20 7b 20 64 62 6c 73 62 | 5b 63 76 66 6e 72 5d 2e | { dblsb|[cvfnr].|
|00001890| 73 5f 66 75 6c 6c 3d 30 | 3b 0a 20 20 20 20 20 20 |s_full=0|;. |
|000018a0| 20 20 72 65 74 75 72 6e | 20 74 65 73 74 73 65 6b | return| testsek|
|000018b0| 2d 69 2b 31 3b 0a 20 20 | 20 20 20 20 7d 0a 20 20 |-i+1;. | }. |
|000018c0| 20 20 20 20 74 65 73 74 | 73 65 6b 2d 3d 69 3b 0a | test|sek-=i;.|
|000018d0| 20 20 20 20 7d 0a 20 20 | 7d 0a 20 20 0a 20 20 2f | }. |}. . /|
|000018e0| 2a 20 73 65 61 72 63 68 | 20 66 6f 72 20 61 20 62 |* search| for a b|
|000018f0| 69 67 20 68 6f 6c 65 20 | 2a 2f 0a 20 20 74 65 73 |ig hole |*/. tes|
|00001900| 74 73 65 6b 3d 64 62 6c | 73 62 5b 63 76 66 6e 72 |tsek=dbl|sb[cvfnr|
|00001910| 5d 2e 73 5f 64 61 74 61 | 73 74 61 72 74 3b 0a 20 |].s_data|start;. |
|00001920| 20 77 68 69 6c 65 28 74 | 65 73 74 73 65 6b 3c 3d | while(t|estsek<=|
|00001930| 64 62 6c 73 62 5b 63 76 | 66 6e 72 5d 2e 73 5f 64 |dblsb[cv|fnr].s_d|
|00001940| 61 74 61 65 6e 64 2d 73 | 69 7a 65 29 0a 20 20 7b |ataend-s|ize). {|
|00001950| 20 69 66 28 64 62 6c 5f | 62 69 74 66 61 74 5f 76 | if(dbl_|bitfat_v|
|00001960| 61 6c 75 65 28 73 62 2c | 74 65 73 74 73 65 6b 2c |alue(sb,|testsek,|
|00001970| 63 76 66 6e 72 2c 4e 55 | 4c 4c 29 29 0a 20 20 20 |cvfnr,NU|LL)). |
|00001980| 20 7b 20 2b 2b 74 65 73 | 74 73 65 6b 3b 0a 20 20 | { ++tes|tsek;. |
|00001990| 20 20 20 20 63 6f 6e 74 | 69 6e 75 65 3b 0a 20 20 | cont|inue;. |
|000019a0| 20 20 7d 0a 20 20 20 20 | 69 3d 31 3b 0a 20 20 20 | }. |i=1;. |
|000019b0| 20 77 68 69 6c 65 28 69 | 3c 42 49 47 5f 48 4f 4c | while(i|<BIG_HOL|
|000019c0| 45 26 26 64 62 6c 5f 62 | 69 74 66 61 74 5f 76 61 |E&&dbl_b|itfat_va|
|000019d0| 6c 75 65 28 73 62 2c 74 | 65 73 74 73 65 6b 2b 69 |lue(sb,t|estsek+i|
|000019e0| 2c 63 76 66 6e 72 2c 4e | 55 4c 4c 29 3d 3d 30 29 |,cvfnr,N|ULL)==0)|
|000019f0| 2b 2b 69 3b 0a 20 20 20 | 20 69 66 28 69 3d 3d 42 |++i;. | if(i==B|
|00001a00| 49 47 5f 48 4f 4c 45 29 | 0a 20 20 20 20 7b 20 64 |IG_HOLE)|. { d|
|00001a10| 62 6c 73 62 5b 63 76 66 | 6e 72 5d 2e 73 5f 66 75 |blsb[cvf|nr].s_fu|
|00001a20| 6c 6c 3d 30 3b 0a 20 20 | 20 20 20 20 72 65 74 75 |ll=0;. | retu|
|00001a30| 72 6e 20 74 65 73 74 73 | 65 6b 3b 0a 20 20 20 20 |rn tests|ek;. |
|00001a40| 7d 0a 20 20 20 20 74 65 | 73 74 73 65 6b 2b 3d 69 |}. te|stsek+=i|
|00001a50| 3b 0a 20 20 7d 0a 20 20 | 0a 20 20 2f 2a 20 73 65 |;. }. |. /* se|
|00001a60| 61 72 63 68 20 66 6f 72 | 20 61 6e 20 65 78 61 63 |arch for| an exac|
|00001a70| 74 6c 79 20 66 69 74 74 | 69 6e 67 20 68 6f 6c 65 |tly fitt|ing hole|
|00001a80| 20 2a 2f 0a 20 20 74 65 | 73 74 73 65 6b 3d 64 62 | */. te|stsek=db|
|00001a90| 6c 73 62 5b 63 76 66 6e | 72 5d 2e 73 5f 64 61 74 |lsb[cvfn|r].s_dat|
|00001aa0| 61 73 74 61 72 74 3b 0a | 20 20 77 68 69 6c 65 28 |astart;.| while(|
|00001ab0| 74 65 73 74 73 65 6b 3c | 3d 64 62 6c 73 62 5b 63 |testsek<|=dblsb[c|
|00001ac0| 76 66 6e 72 5d 2e 73 5f | 64 61 74 61 65 6e 64 2d |vfnr].s_|dataend-|
|00001ad0| 73 69 7a 65 29 0a 20 20 | 7b 20 69 66 28 64 62 6c |size). |{ if(dbl|
|00001ae0| 5f 62 69 74 66 61 74 5f | 76 61 6c 75 65 28 73 62 |_bitfat_|value(sb|
|00001af0| 2c 74 65 73 74 73 65 6b | 2c 63 76 66 6e 72 2c 4e |,testsek|,cvfnr,N|
|00001b00| 55 4c 4c 29 29 0a 20 20 | 20 20 7b 20 2b 2b 74 65 |ULL)). | { ++te|
|00001b10| 73 74 73 65 6b 3b 0a 20 | 20 20 20 20 20 63 6f 6e |stsek;. | con|
|00001b20| 74 69 6e 75 65 3b 0a 20 | 20 20 20 7d 0a 20 20 20 |tinue;. | }. |
|00001b30| 20 69 3d 31 3b 0a 20 20 | 20 20 77 68 69 6c 65 28 | i=1;. | while(|
|00001b40| 69 3c 3d 73 69 7a 65 26 | 26 64 62 6c 5f 62 69 74 |i<=size&|&dbl_bit|
|00001b50| 66 61 74 5f 76 61 6c 75 | 65 28 73 62 2c 74 65 73 |fat_valu|e(sb,tes|
|00001b60| 74 73 65 6b 2b 69 2c 63 | 76 66 6e 72 2c 4e 55 4c |tsek+i,c|vfnr,NUL|
|00001b70| 4c 29 3d 3d 30 29 2b 2b | 69 3b 0a 20 20 20 20 69 |L)==0)++|i;. i|
|00001b80| 66 28 69 3d 3d 73 69 7a | 65 29 0a 20 20 20 20 7b |f(i==siz|e). {|
|00001b90| 20 64 62 6c 73 62 5b 63 | 76 66 6e 72 5d 2e 73 5f | dblsb[c|vfnr].s_|
|00001ba0| 66 75 6c 6c 3d 30 3b 0a | 20 20 20 20 20 20 72 65 |full=0;.| re|
|00001bb0| 74 75 72 6e 20 74 65 73 | 74 73 65 6b 3b 0a 20 20 |turn tes|tsek;. |
|00001bc0| 20 20 7d 0a 20 20 20 20 | 74 65 73 74 73 65 6b 2b | }. |testsek+|
|00001bd0| 3d 69 3b 0a 20 20 7d 0a | 20 20 0a 20 20 69 66 28 |=i;. }.| . if(|
|00001be0| 64 62 6c 73 62 5b 63 76 | 66 6e 72 5d 2e 73 5f 66 |dblsb[cv|fnr].s_f|
|00001bf0| 75 6c 6c 3d 3d 30 29 0a | 20 20 70 72 69 6e 74 6b |ull==0).| printk|
|00001c00| 28 4b 45 52 4e 5f 45 4d | 45 52 47 20 22 44 4d 53 |(KERN_EM|ERG "DMS|
|00001c10| 44 4f 53 3a 20 43 56 46 | 20 25 64 20 61 6c 6d 6f |DOS: CVF| %d almo|
|00001c20| 73 74 20 66 75 6c 6c 20 | 6f 72 20 68 69 67 68 6c |st full |or highl|
|00001c30| 79 20 66 72 61 67 6d 65 | 6e 74 65 64 20 61 74 20 |y fragme|nted at |
|00001c40| 4d 44 46 41 54 20 6c 65 | 76 65 6c 2c 20 72 65 66 |MDFAT le|vel, ref|
|00001c50| 75 73 69 6e 67 20 66 75 | 72 74 68 65 72 20 6e 6f |using fu|rther no|
|00001c60| 6e 2d 72 6f 6f 74 20 77 | 72 69 74 65 20 61 63 63 |n-root w|rite acc|
|00001c70| 65 73 73 2e 5c 6e 22 2c | 0a 20 20 20 20 20 20 20 |ess.\n",|. |
|00001c80| 20 20 63 76 66 6e 72 2b | 31 29 3b 0a 20 20 0a 20 | cvfnr+|1);. . |
|00001c90| 20 64 62 6c 73 62 5b 63 | 76 66 6e 72 5d 2e 73 5f | dblsb[c|vfnr].s_|
|00001ca0| 66 75 6c 6c 3d 31 3b 0a | 20 20 2f 2a 20 6c 61 73 |full=1;.| /* las|
|00001cb0| 74 20 74 72 69 61 6c 3a | 20 73 65 61 72 63 68 20 |t trial:| search |
|00001cc0| 66 6f 72 20 61 6e 79 20 | 68 6f 6c 65 20 3e 3d 20 |for any |hole >= |
|00001cd0| 73 69 7a 65 20 2a 2f 0a | 20 20 74 65 73 74 73 65 |size */.| testse|
|00001ce0| 6b 3d 64 62 6c 73 62 5b | 63 76 66 6e 72 5d 2e 73 |k=dblsb[|cvfnr].s|
|00001cf0| 5f 64 61 74 61 73 74 61 | 72 74 3b 0a 20 20 77 68 |_datasta|rt;. wh|
|00001d00| 69 6c 65 28 74 65 73 74 | 73 65 6b 3c 3d 64 62 6c |ile(test|sek<=dbl|
|00001d10| 73 62 5b 63 76 66 6e 72 | 5d 2e 73 5f 64 61 74 61 |sb[cvfnr|].s_data|
|00001d20| 65 6e 64 2d 73 69 7a 65 | 29 0a 20 20 7b 20 69 66 |end-size|). { if|
|00001d30| 28 64 62 6c 5f 62 69 74 | 66 61 74 5f 76 61 6c 75 |(dbl_bit|fat_valu|
|00001d40| 65 28 73 62 2c 74 65 73 | 74 73 65 6b 2c 63 76 66 |e(sb,tes|tsek,cvf|
|00001d50| 6e 72 2c 4e 55 4c 4c 29 | 29 0a 20 20 20 20 7b 20 |nr,NULL)|). { |
|00001d60| 2b 2b 74 65 73 74 73 65 | 6b 3b 0a 20 20 20 20 20 |++testse|k;. |
|00001d70| 20 63 6f 6e 74 69 6e 75 | 65 3b 0a 20 20 20 20 7d | continu|e;. }|
|00001d80| 0a 20 20 20 20 69 3d 31 | 3b 0a 20 20 20 20 77 68 |. i=1|;. wh|
|00001d90| 69 6c 65 28 69 3c 73 69 | 7a 65 26 26 64 62 6c 5f |ile(i<si|ze&&dbl_|
|00001da0| 62 69 74 66 61 74 5f 76 | 61 6c 75 65 28 73 62 2c |bitfat_v|alue(sb,|
|00001db0| 74 65 73 74 73 65 6b 2b | 69 2c 63 76 66 6e 72 2c |testsek+|i,cvfnr,|
|00001dc0| 4e 55 4c 4c 29 3d 3d 30 | 29 2b 2b 69 3b 0a 20 20 |NULL)==0|)++i;. |
|00001dd0| 20 20 69 66 28 69 3d 3d | 73 69 7a 65 29 72 65 74 | if(i==|size)ret|
|00001de0| 75 72 6e 20 74 65 73 74 | 73 65 6b 3b 0a 20 20 20 |urn test|sek;. |
|00001df0| 20 74 65 73 74 73 65 6b | 2b 3d 69 3b 0a 20 20 7d | testsek|+=i;. }|
|00001e00| 0a 20 20 0a 20 20 2f 2a | 20 6e 6f 74 20 66 6f 75 |. . /*| not fou|
|00001e10| 6e 64 2c 20 6d 65 61 6e | 73 20 64 69 73 6b 20 66 |nd, mean|s disk f|
|00001e20| 75 6c 6c 20 6f 72 20 4d | 44 46 41 54 20 74 6f 6f |ull or M|DFAT too|
|00001e30| 20 66 72 61 67 6d 65 6e | 74 65 64 20 2a 2f 0a 20 | fragmen|ted */. |
|00001e40| 20 64 62 6c 73 62 5b 63 | 76 66 6e 72 5d 2e 73 5f | dblsb[c|vfnr].s_|
|00001e50| 66 75 6c 6c 3d 32 3b 0a | 20 20 70 72 69 6e 74 6b |full=2;.| printk|
|00001e60| 28 4b 45 52 4e 5f 45 4d | 45 52 47 20 22 44 4d 53 |(KERN_EM|ERG "DMS|
|00001e70| 44 4f 53 3a 20 43 56 46 | 20 25 64 20 66 75 6c 6c |DOS: CVF| %d full|
|00001e80| 20 6f 72 20 74 6f 6f 20 | 66 72 61 67 6d 65 6e 74 | or too |fragment|
|00001e90| 65 64 20 61 74 20 4d 44 | 46 41 54 20 6c 65 76 65 |ed at MD|FAT leve|
|00001ea0| 6c 20 2d 20 73 65 65 20 | 64 6f 63 5c 6e 22 2c 63 |l - see |doc\n",c|
|00001eb0| 76 66 6e 72 2b 31 29 3b | 0a 20 20 72 65 74 75 72 |vfnr+1);|. retur|
|00001ec0| 6e 20 30 3b 0a 7d 0a 0a | 2f 2a 20 66 69 6e 64 73 |n 0;.}..|/* finds|
|00001ed0| 20 61 20 66 72 65 65 20 | 63 6c 75 73 74 65 72 2c | a free |cluster,|
|00001ee0| 20 6d 61 72 6b 73 20 69 | 74 20 61 73 20 65 6e 64 | marks i|t as end|
|00001ef0| 20 69 6e 20 66 61 74 2c | 0a 20 20 20 72 65 74 75 | in fat,|. retu|
|00001f00| 72 6e 73 20 63 6c 75 73 | 74 65 72 6e 72 20 0a 20 |rns clus|ternr . |
|00001f10| 20 20 72 65 74 75 72 6e | 73 20 2d 45 4e 4f 53 50 | return|s -ENOSP|
|00001f20| 43 20 69 66 20 64 69 73 | 6b 20 66 75 6c 6c 20 0a |C if dis|k full .|
|00001f30| 20 20 20 0a 20 20 20 2a | 2a 2a 2a 20 64 6f 20 6e | . *|*** do n|
|00001f40| 6f 74 20 63 61 6c 6c 20 | 64 69 72 65 63 74 6c 79 |ot call |directly|
|00001f50| 2c 20 63 61 6c 6c 20 74 | 68 65 20 75 73 65 72 20 |, call t|he user |
|00001f60| 70 72 65 66 65 72 61 62 | 6c 65 20 61 6c 6c 6f 63 |preferab|le alloc|
|00001f70| 61 74 69 6f 6e 20 66 75 | 6e 63 74 69 6f 6e 73 0a |ation fu|nctions.|
|00001f80| 20 20 20 20 20 20 20 20 | 69 6e 73 74 65 61 64 0a | |instead.|
|00001f90| 2a 2f 0a 69 6e 74 20 61 | 6c 6c 6f 63 61 74 65 5f |*/.int a|llocate_|
|00001fa0| 63 6c 75 73 74 65 72 28 | 73 74 72 75 63 74 20 73 |cluster(|struct s|
|00001fb0| 75 70 65 72 5f 62 6c 6f | 63 6b 2a 73 62 2c 20 69 |uper_blo|ck*sb, i|
|00001fc0| 6e 74 20 63 76 66 6e 72 | 29 0a 7b 20 0a 20 20 69 |nt cvfnr|).{ . i|
|00001fd0| 6e 74 20 69 3b 0a 20 20 | 69 6e 74 20 6e 65 77 76 |nt i;. |int newv|
|00001fe0| 61 6c 3b 0a 20 20 69 6e | 74 20 63 6c 75 73 74 65 |al;. in|t cluste|
|00001ff0| 72 6e 72 3b 0a 20 20 4d | 64 66 61 74 5f 65 6e 74 |rnr;. M|dfat_ent|
|00002000| 72 79 20 6d 64 65 3b 0a | 20 20 0a 20 20 2f 2a 20 |ry mde;.| . /* |
|00002010| 77 68 65 6e 20 66 69 6c | 65 73 79 73 74 65 6d 20 |when fil|esystem |
|00002020| 69 73 20 61 6c 6d 6f 73 | 74 20 66 75 6c 6c 2c 20 |is almos|t full, |
|00002030| 6f 6e 6c 79 20 72 6f 6f | 74 20 6d 61 79 20 75 73 |only roo|t may us|
|00002040| 65 20 74 68 65 20 6c 61 | 73 74 20 42 49 47 5f 48 |e the la|st BIG_H|
|00002050| 4f 4c 45 0a 20 20 20 20 | 20 73 65 63 74 6f 72 73 |OLE. | sectors|
|00002060| 20 73 69 6e 63 65 20 69 | 74 20 63 61 6e 20 62 65 | since i|t can be|
|00002070| 20 64 61 6e 67 65 72 6f | 75 73 20 74 6f 20 66 69 | dangero|us to fi|
|00002080| 6c 6c 20 61 20 43 56 46 | 20 75 70 74 6f 20 69 74 |ll a CVF| upto it|
|00002090| 73 20 6e 65 63 6b 20 0a | 20 20 20 20 20 2d 20 73 |s neck .| - s|
|000020a0| 6f 20 69 67 6e 6f 72 65 | 20 74 68 65 20 73 5f 66 |o ignore| the s_f|
|000020b0| 75 6c 6c 20 66 6c 61 67 | 20 6f 6e 20 72 6f 6f 74 |ull flag| on root|
|000020c0| 20 2a 2f 0a 20 20 69 66 | 28 64 62 6c 73 62 5b 63 | */. if|(dblsb[c|
|000020d0| 76 66 6e 72 5d 2e 73 5f | 66 75 6c 6c 21 3d 30 26 |vfnr].s_|full!=0&|
|000020e0| 26 63 75 72 72 65 6e 74 | 2d 3e 65 75 69 64 21 3d |¤t|->euid!=|
|000020f0| 30 29 72 65 74 75 72 6e | 20 2d 45 4e 4f 53 50 43 |0)return| -ENOSPC|
|00002100| 3b 0a 20 20 0a 20 20 2f | 2a 20 69 66 20 74 68 65 |;. . /|* if the|
|00002110| 72 65 27 73 20 2a 72 65 | 61 6c 6c 79 2a 20 6e 6f |re's *re|ally* no|
|00002120| 74 68 69 6e 67 20 66 72 | 65 65 20 61 6e 79 20 6d |thing fr|ee any m|
|00002130| 6f 72 65 2c 20 64 6f 6e | 27 74 20 6c 65 74 20 72 |ore, don|'t let r|
|00002140| 6f 6f 74 20 77 72 69 74 | 65 20 2a 2f 0a 20 20 69 |oot writ|e */. i|
|00002150| 66 28 64 62 6c 73 62 5b | 63 76 66 6e 72 5d 2e 73 |f(dblsb[|cvfnr].s|
|00002160| 5f 66 75 6c 6c 3d 3d 32 | 29 72 65 74 75 72 6e 20 |_full==2|)return |
|00002170| 2d 45 4e 4f 53 50 43 3b | 0a 20 20 0a 20 20 2f 2a |-ENOSPC;|. . /*|
|00002180| 20 66 69 6e 64 20 66 72 | 65 65 20 63 6c 75 73 74 | find fr|ee clust|
|00002190| 65 72 20 69 6e 20 66 61 | 74 20 2a 2f 0a 20 20 63 |er in fa|t */. c|
|000021a0| 6c 75 73 74 65 72 6e 72 | 3d 30 3b 0a 20 20 66 6f |lusternr|=0;. fo|
|000021b0| 72 28 69 3d 32 3b 69 3c | 3d 64 62 6c 73 62 5b 63 |r(i=2;i<|=dblsb[c|
|000021c0| 76 66 6e 72 5d 2e 73 5f | 6d 61 78 5f 63 6c 75 73 |vfnr].s_|max_clus|
|000021d0| 74 65 72 3b 2b 2b 69 29 | 0a 20 20 7b 20 69 66 28 |ter;++i)|. { if(|
|000021e0| 64 62 6c 5f 66 61 74 5f | 6e 65 78 74 63 6c 75 73 |dbl_fat_|nextclus|
|000021f0| 74 65 72 28 73 62 2c 69 | 2c 63 76 66 6e 72 2c 4e |ter(sb,i|,cvfnr,N|
|00002200| 55 4c 4c 29 3d 3d 30 29 | 0a 20 20 20 20 7b 20 63 |ULL)==0)|. { c|
|00002210| 6c 75 73 74 65 72 6e 72 | 3d 69 3b 0a 0a 20 20 20 |lusternr|=i;.. |
|00002220| 20 20 20 2f 2a 20 63 68 | 65 63 6b 20 6d 64 66 61 | /* ch|eck mdfa|
|00002230| 74 20 69 66 20 65 6d 70 | 74 79 20 2a 2f 0a 20 20 |t if emp|ty */. |
|00002240| 20 20 20 20 64 62 6c 5f | 6d 64 66 61 74 5f 76 61 | dbl_|mdfat_va|
|00002250| 6c 75 65 28 73 62 2c 63 | 6c 75 73 74 65 72 6e 72 |lue(sb,c|lusternr|
|00002260| 2c 63 76 66 6e 72 2c 4e | 55 4c 4c 2c 26 6d 64 65 |,cvfnr,N|ULL,&mde|
|00002270| 29 3b 0a 20 20 20 20 20 | 20 69 66 28 6d 64 65 2e |);. | if(mde.|
|00002280| 66 6c 61 67 73 26 32 29 | 0a 20 20 20 20 20 20 7b |flags&2)|. {|
|00002290| 20 70 72 69 6e 74 6b 28 | 22 44 4d 53 44 4f 53 3a | printk(|"DMSDOS:|
|000022a0| 20 43 56 46 20 25 64 3a | 20 4d 44 46 41 54 20 63 | CVF %d:| MDFAT c|
|000022b0| 6f 6e 74 72 61 64 69 63 | 74 73 20 46 41 54 20 66 |ontradic|ts FAT f|
|000022c0| 6f 72 20 63 6c 75 73 74 | 65 72 20 25 64 2c 20 69 |or clust|er %d, i|
|000022d0| 67 6e 6f 72 69 6e 67 20 | 65 6e 74 72 79 20 2d 20 |gnoring |entry - |
|000022e0| 63 68 65 63 6b 20 66 69 | 6c 65 73 79 73 74 65 6d |check fi|lesystem|
|000022f0| 21 5c 6e 22 2c 0a 20 20 | 20 20 20 20 20 20 20 20 |!\n",. | |
|00002300| 20 20 20 20 20 63 76 66 | 6e 72 2b 31 2c 63 6c 75 | cvf|nr+1,clu|
|00002310| 73 74 65 72 6e 72 29 3b | 0a 20 20 20 20 20 20 7d |sternr);|. }|
|00002320| 0a 20 20 20 20 20 20 65 | 6c 73 65 0a 20 20 20 20 |. e|lse. |
|00002330| 20 20 7b 0a 20 20 20 20 | 20 20 20 20 2f 2a 20 6f | {. | /* o|
|00002340| 6b 61 79 2c 20 6d 61 72 | 6b 20 61 70 70 65 6e 64 |kay, mar|k append|
|00002350| 65 64 20 63 6c 75 73 74 | 65 72 20 61 73 20 27 65 |ed clust|er as 'e|
|00002360| 6e 64 27 20 2a 2f 0a 20 | 20 20 20 20 20 20 20 6e |nd' */. | n|
|00002370| 65 77 76 61 6c 3d 30 78 | 46 46 46 46 3b 0a 20 20 |ewval=0x|FFFF;. |
|00002380| 20 20 20 20 20 20 64 62 | 6c 5f 66 61 74 5f 6e 65 | db|l_fat_ne|
|00002390| 78 74 63 6c 75 73 74 65 | 72 28 73 62 2c 63 6c 75 |xtcluste|r(sb,clu|
|000023a0| 73 74 65 72 6e 72 2c 63 | 76 66 6e 72 2c 26 6e 65 |sternr,c|vfnr,&ne|
|000023b0| 77 76 61 6c 29 3b 0a 20 | 20 20 20 20 20 20 20 0a |wval);. | .|
|000023c0| 20 20 20 20 20 20 20 20 | 72 65 74 75 72 6e 20 63 | |return c|
|000023d0| 6c 75 73 74 65 72 6e 72 | 3b 0a 20 20 20 20 20 20 |lusternr|;. |
|000023e0| 7d 0a 20 20 20 20 7d 0a | 20 20 7d 0a 20 20 0a 20 |}. }.| }. . |
|000023f0| 20 72 65 74 75 72 6e 20 | 2d 45 4e 4f 53 50 43 3b | return |-ENOSPC;|
|00002400| 0a 7d 0a 0a 2f 2a 20 75 | 73 65 72 20 70 72 65 66 |.}../* u|ser pref|
|00002410| 65 72 61 62 6c 65 20 63 | 6c 75 73 74 65 72 20 61 |erable c|luster a|
|00002420| 6c 6c 6f 63 61 74 69 6f | 6e 20 72 6f 75 74 69 6e |llocatio|n routin|
|00002430| 65 73 20 2a 2f 0a 0a 69 | 6e 74 20 61 6c 6c 6f 63 |es */..i|nt alloc|
|00002440| 61 74 65 5f 66 69 72 73 | 74 5f 63 6c 75 73 74 65 |ate_firs|t_cluste|
|00002450| 72 28 73 74 72 75 63 74 | 20 73 75 70 65 72 5f 62 |r(struct| super_b|
|00002460| 6c 6f 63 6b 2a 73 62 2c | 20 69 6e 74 20 63 76 66 |lock*sb,| int cvf|
|00002470| 6e 72 29 0a 7b 20 69 6e | 74 20 72 65 73 3b 0a 0a |nr).{ in|t res;..|
|00002480| 20 20 6c 6f 63 6b 5f 61 | 6c 6c 6f 63 28 29 3b 20 | lock_a|lloc(); |
|00002490| 0a 20 20 72 65 73 3d 61 | 6c 6c 6f 63 61 74 65 5f |. res=a|llocate_|
|000024a0| 63 6c 75 73 74 65 72 28 | 73 62 2c 63 76 66 6e 72 |cluster(|sb,cvfnr|
|000024b0| 29 3b 0a 20 20 75 6e 6c | 6f 63 6b 5f 61 6c 6c 6f |);. unl|ock_allo|
|000024c0| 63 28 29 3b 0a 20 20 72 | 65 74 75 72 6e 20 72 65 |c();. r|eturn re|
|000024d0| 73 3b 0a 7d 0a 0a 69 6e | 74 20 61 6c 6c 6f 63 61 |s;.}..in|t alloca|
|000024e0| 74 65 5f 6e 65 78 74 5f | 63 6c 75 73 74 65 72 28 |te_next_|cluster(|
|000024f0| 73 74 72 75 63 74 20 73 | 75 70 65 72 5f 62 6c 6f |struct s|uper_blo|
|00002500| 63 6b 2a 73 62 2c 20 69 | 6e 74 20 61 6b 74 5f 63 |ck*sb, i|nt akt_c|
|00002510| 6c 75 73 74 65 72 2c 20 | 69 6e 74 20 63 76 66 6e |luster, |int cvfn|
|00002520| 72 29 0a 7b 20 0a 20 20 | 69 6e 74 20 72 65 73 3b |r).{ . |int res;|
|00002530| 0a 0a 20 20 6c 6f 63 6b | 5f 61 6c 6c 6f 63 28 29 |.. lock|_alloc()|
|00002540| 3b 0a 20 20 72 65 73 3d | 61 6c 6c 6f 63 61 74 65 |;. res=|allocate|
|00002550| 5f 63 6c 75 73 74 65 72 | 28 73 62 2c 63 76 66 6e |_cluster|(sb,cvfn|
|00002560| 72 29 3b 0a 20 20 69 66 | 28 72 65 73 3e 30 29 64 |r);. if|(res>0)d|
|00002570| 62 6c 5f 66 61 74 5f 6e | 65 78 74 63 6c 75 73 74 |bl_fat_n|extclust|
|00002580| 65 72 28 73 62 2c 61 6b | 74 5f 63 6c 75 73 74 65 |er(sb,ak|t_cluste|
|00002590| 72 2c 63 76 66 6e 72 2c | 26 72 65 73 29 3b 0a 20 |r,cvfnr,|&res);. |
|000025a0| 20 75 6e 6c 6f 63 6b 5f | 61 6c 6c 6f 63 28 29 3b | unlock_|alloc();|
|000025b0| 0a 20 20 72 65 74 75 72 | 6e 20 72 65 73 3b 0a 7d |. retur|n res;.}|
|000025c0| 0a 0a 2f 2a 20 72 65 70 | 6c 61 63 65 73 20 61 6e |../* rep|laces an|
|000025d0| 20 65 78 69 73 74 69 6e | 67 20 63 6c 75 73 74 65 | existin|g cluste|
|000025e0| 72 3b 0a 20 20 20 74 68 | 69 73 20 75 6e 75 73 75 |r;. th|is unusu|
|000025f0| 61 6c 20 66 75 6e 63 74 | 69 6f 6e 20 6d 75 73 74 |al funct|ion must|
|00002600| 20 62 65 20 63 61 6c 6c | 65 64 20 62 65 66 6f 72 | be call|ed befor|
|00002610| 65 20 72 65 77 72 69 74 | 69 6e 67 20 61 6e 79 20 |e rewrit|ing any |
|00002620| 66 69 6c 65 20 63 6c 75 | 73 74 65 72 3b 0a 20 20 |file clu|ster;. |
|00002630| 20 2a 2a 2a 20 73 69 7a | 65 20 6d 75 73 74 20 62 | *** siz|e must b|
|00002640| 65 20 6b 6e 6f 77 6e 20 | 28 65 6e 63 6f 64 65 64 |e known |(encoded|
|00002650| 20 69 6e 20 6d 64 65 29 | 20 2a 2a 2a 0a 20 20 20 | in mde)| ***. |
|00002660| 69 74 20 64 6f 65 73 20 | 6e 6f 74 68 69 6e 67 20 |it does |nothing |
|00002670| 69 66 20 63 61 6c 6c 65 | 64 20 74 6f 6f 20 6f 66 |if calle|d too of|
|00002680| 74 65 6e 3b 0a 20 20 20 | 72 65 74 75 72 6e 73 20 |ten;. |returns |
|00002690| 66 69 72 73 74 20 73 65 | 63 74 6f 72 20 6e 72 0a |first se|ctor nr.|
|000026a0| 2a 2f 0a 0a 69 6e 74 20 | 72 65 70 6c 61 63 65 5f |*/..int |replace_|
|000026b0| 65 78 69 73 74 69 6e 67 | 5f 63 6c 75 73 74 65 72 |existing|_cluster|
|000026c0| 28 73 74 72 75 63 74 20 | 73 75 70 65 72 5f 62 6c |(struct |super_bl|
|000026d0| 6f 63 6b 2a 73 62 2c 20 | 69 6e 74 20 63 6c 75 73 |ock*sb, |int clus|
|000026e0| 74 65 72 2c 20 0a 20 20 | 20 20 20 20 20 20 20 20 |ter, . | |
|000026f0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00002700| 20 20 20 69 6e 74 20 6e | 65 61 72 5f 73 65 63 74 | int n|ear_sect|
|00002710| 6f 72 2c 0a 20 20 20 20 | 20 20 20 20 20 20 20 20 |or,. | |
|00002720| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00002730| 20 4d 64 66 61 74 5f 65 | 6e 74 72 79 2a 6d 64 65 | Mdfat_e|ntry*mde|
|00002740| 2c 20 69 6e 74 20 63 76 | 66 6e 72 29 0a 7b 20 4d |, int cv|fnr).{ M|
|00002750| 64 66 61 74 5f 65 6e 74 | 72 79 20 6f 6c 64 5f 6d |dfat_ent|ry old_m|
|00002760| 64 65 2c 6e 65 77 5f 6d | 64 65 2c 64 75 6d 6d 79 |de,new_m|de,dummy|
|00002770| 3b 0a 20 20 69 6e 74 20 | 69 3b 0a 20 20 69 6e 74 |;. int |i;. int|
|00002780| 20 6e 65 77 76 61 6c 3b | 0a 20 20 69 6e 74 20 73 | newval;|. int s|
|00002790| 65 6b 74 6f 72 3b 0a 20 | 20 69 6e 74 20 6f 6c 64 |ektor;. | int old|
|000027a0| 5f 73 65 6b 74 6f 72 3b | 0a 20 20 69 6e 74 20 6f |_sektor;|. int o|
|000027b0| 6c 64 5f 73 69 7a 65 3b | 0a 20 20 69 6e 74 20 6e |ld_size;|. int n|
|000027c0| 65 77 5f 73 69 7a 65 3b | 0a 20 20 0a 20 20 6c 6f |ew_size;|. . lo|
|000027d0| 63 6b 5f 61 6c 6c 6f 63 | 28 29 3b 0a 0a 20 20 2f |ck_alloc|();.. /|
|000027e0| 2a 20 70 72 69 6e 74 6b | 28 22 44 4d 53 44 4f 53 |* printk|("DMSDOS|
|000027f0| 3a 20 72 65 70 6c 61 63 | 65 5f 65 78 69 73 74 69 |: replac|e_existi|
|00002800| 6e 67 5f 63 6c 75 73 74 | 65 72 20 63 6c 75 73 74 |ng_clust|er clust|
|00002810| 65 72 3d 25 64 20 6e 65 | 61 72 5f 73 65 63 74 6f |er=%d ne|ar_secto|
|00002820| 72 3d 25 64 20 6d 64 66 | 61 74 62 69 74 73 3d 30 |r=%d mdf|atbits=0|
|00002830| 78 25 78 20 63 76 66 6e | 72 3d 25 64 5c 6e 22 2c |x%x cvfn|r=%d\n",|
|00002840| 0a 20 20 20 20 20 20 20 | 20 20 63 6c 75 73 74 65 |. | cluste|
|00002850| 72 2c 6e 65 61 72 5f 73 | 65 63 74 6f 72 2c 6d 64 |r,near_s|ector,md|
|00002860| 66 61 74 62 69 74 73 2c | 63 76 66 6e 72 2b 31 29 |fatbits,|cvfnr+1)|
|00002870| 3b 2a 2f 0a 20 20 64 62 | 6c 5f 6d 64 66 61 74 5f |;*/. db|l_mdfat_|
|00002880| 76 61 6c 75 65 28 73 62 | 2c 63 6c 75 73 74 65 72 |value(sb|,cluster|
|00002890| 2c 63 76 66 6e 72 2c 4e | 55 4c 4c 2c 26 6f 6c 64 |,cvfnr,N|ULL,&old|
|000028a0| 5f 6d 64 65 29 3b 0a 20 | 20 6f 6c 64 5f 73 69 7a |_mde);. | old_siz|
|000028b0| 65 3d 6f 6c 64 5f 6d 64 | 65 2e 73 69 7a 65 5f 6c |e=old_md|e.size_l|
|000028c0| 6f 5f 6d 69 6e 75 73 5f | 31 2b 31 3b 0a 20 20 6f |o_minus_|1+1;. o|
|000028d0| 6c 64 5f 73 65 6b 74 6f | 72 3d 6f 6c 64 5f 6d 64 |ld_sekto|r=old_md|
|000028e0| 65 2e 73 65 63 74 6f 72 | 5f 6d 69 6e 75 73 5f 31 |e.sector|_minus_1|
|000028f0| 2b 31 3b 0a 20 20 6e 65 | 77 5f 73 69 7a 65 3d 6d |+1;. ne|w_size=m|
|00002900| 64 65 2d 3e 73 69 7a 65 | 5f 6c 6f 5f 6d 69 6e 75 |de->size|_lo_minu|
|00002910| 73 5f 31 2b 31 3b 0a 20 | 20 69 66 28 6f 6c 64 5f |s_1+1;. | if(old_|
|00002920| 6d 64 65 2e 66 6c 61 67 | 73 26 32 29 0a 20 20 7b |mde.flag|s&2). {|
|00002930| 0a 20 20 20 20 2f 2a 20 | 74 65 73 74 20 77 68 65 |. /* |test whe|
|00002940| 74 68 65 72 20 73 61 6d | 65 20 6c 65 6e 67 74 68 |ther sam|e length|
|00002950| 20 2a 2f 0a 20 20 20 20 | 69 66 28 6f 6c 64 5f 73 | */. |if(old_s|
|00002960| 69 7a 65 3d 3d 6e 65 77 | 5f 73 69 7a 65 29 0a 20 |ize==new|_size). |
|00002970| 20 20 20 7b 20 2f 2a 70 | 72 69 6e 74 6b 28 22 44 | { /*p|rintk("D|
|00002980| 4d 53 44 4f 53 3a 20 72 | 65 70 6c 61 63 65 5f 65 |MSDOS: r|eplace_e|
|00002990| 78 69 73 74 69 6e 67 5f | 63 6c 75 73 74 65 72 3a |xisting_|cluster:|
|000029a0| 20 73 61 6d 65 20 6c 65 | 6e 67 74 68 2c 20 6f 6b | same le|ngth, ok|
|000029b0| 5c 6e 22 29 3b 2a 2f 0a | 20 20 20 20 20 20 73 65 |\n");*/.| se|
|000029c0| 6b 74 6f 72 3d 6f 6c 64 | 5f 73 65 6b 74 6f 72 3b |ktor=old|_sektor;|
|000029d0| 0a 20 20 20 20 20 20 67 | 6f 74 6f 20 6d 64 66 61 |. g|oto mdfa|
|000029e0| 74 5f 75 70 64 61 74 65 | 3b 0a 20 20 20 20 7d 0a |t_update|;. }.|
|000029f0| 20 20 20 20 2f 2a 20 64 | 69 66 66 65 72 65 6e 74 | /* d|ifferent|
|00002a00| 20 6c 65 6e 67 74 68 2c | 20 72 65 70 6c 61 63 65 | length,| replace|
|00002a10| 20 6d 64 66 61 74 20 65 | 6e 74 72 79 20 2a 2f 0a | mdfat e|ntry */.|
|00002a20| 20 20 20 20 6e 65 77 76 | 61 6c 3d 30 3b 0a 20 20 | newv|al=0;. |
|00002a30| 20 20 2f 2a 70 72 69 6e | 74 6b 28 22 44 4d 53 44 | /*prin|tk("DMSD|
|00002a40| 4f 53 3a 20 72 65 70 6c | 61 63 65 5f 65 78 69 73 |OS: repl|ace_exis|
|00002a50| 74 69 6e 67 5f 63 6c 75 | 73 74 65 72 3a 20 66 72 |ting_clu|ster: fr|
|00002a60| 65 65 69 6e 67 20 6f 6c | 64 20 73 65 63 74 6f 72 |eeing ol|d sector|
|00002a70| 73 2e 2e 2e 5c 6e 22 29 | 3b 2a 2f 0a 20 20 20 20 |s...\n")|;*/. |
|00002a80| 66 6f 72 28 69 3d 30 3b | 69 3c 6f 6c 64 5f 73 69 |for(i=0;|i<old_si|
|00002a90| 7a 65 3b 2b 2b 69 29 64 | 62 6c 5f 62 69 74 66 61 |ze;++i)d|bl_bitfa|
|00002aa0| 74 5f 76 61 6c 75 65 28 | 73 62 2c 6f 6c 64 5f 73 |t_value(|sb,old_s|
|00002ab0| 65 6b 74 6f 72 2b 69 2c | 63 76 66 6e 72 2c 26 6e |ektor+i,|cvfnr,&n|
|00002ac0| 65 77 76 61 6c 29 3b 0a | 20 20 20 20 2f 2a 70 72 |ewval);.| /*pr|
|00002ad0| 69 6e 74 6b 28 22 44 4d | 53 44 4f 53 3a 20 72 65 |intk("DM|SDOS: re|
|00002ae0| 70 6c 61 63 65 5f 65 78 | 69 73 74 69 6e 67 5f 63 |place_ex|isting_c|
|00002af0| 6c 75 73 74 65 72 3a 20 | 66 72 65 65 69 6e 67 20 |luster: |freeing |
|00002b00| 66 69 6e 69 73 68 65 64 | 5c 6e 22 29 3b 2a 2f 0a |finished|\n");*/.|
|00002b10| 20 20 7d 0a 20 20 2f 2a | 70 72 69 6e 74 6b 28 22 | }. /*|printk("|
|00002b20| 44 4d 53 44 4f 53 3a 20 | 72 65 70 6c 61 63 65 5f |DMSDOS: |replace_|
|00002b30| 65 78 69 73 74 69 6e 67 | 5f 63 6c 75 73 74 65 72 |existing|_cluster|
|00002b40| 3a 20 63 61 6c 6c 20 66 | 69 6e 64 5f 66 72 65 65 |: call f|ind_free|
|00002b50| 5f 62 69 74 66 61 74 2e | 2e 2e 5c 6e 22 29 3b 2a |_bitfat.|..\n");*|
|00002b60| 2f 0a 20 20 73 65 6b 74 | 6f 72 3d 66 69 6e 64 5f |/. sekt|or=find_|
|00002b70| 66 72 65 65 5f 62 69 74 | 66 61 74 28 73 62 2c 6e |free_bit|fat(sb,n|
|00002b80| 65 61 72 5f 73 65 63 74 | 6f 72 2c 63 76 66 6e 72 |ear_sect|or,cvfnr|
|00002b90| 2c 6e 65 77 5f 73 69 7a | 65 29 3b 0a 20 20 2f 2a |,new_siz|e);. /*|
|00002ba0| 70 72 69 6e 74 6b 28 22 | 44 4d 53 44 4f 53 3a 20 |printk("|DMSDOS: |
|00002bb0| 72 65 70 6c 61 63 65 5f | 65 78 69 73 74 69 6e 67 |replace_|existing|
|00002bc0| 5f 63 6c 75 73 74 65 72 | 3a 20 66 69 6e 64 5f 66 |_cluster|: find_f|
|00002bd0| 72 65 65 5f 62 69 74 66 | 61 74 20 72 65 74 75 72 |ree_bitf|at retur|
|00002be0| 6e 65 64 20 25 64 5c 6e | 22 2c 0a 20 20 20 20 20 |ned %d\n|",. |
|00002bf0| 20 20 20 20 73 65 6b 74 | 6f 72 29 3b 2a 2f 0a 20 | sekt|or);*/. |
|00002c00| 20 69 66 28 73 65 6b 74 | 6f 72 3d 3d 30 29 0a 20 | if(sekt|or==0). |
|00002c10| 20 7b 20 69 66 28 6f 6c | 64 5f 6d 64 65 2e 66 6c | { if(ol|d_mde.fl|
|00002c20| 61 67 73 26 32 29 0a 20 | 20 20 20 7b 0a 20 20 20 |ags&2). | {. |
|00002c30| 20 20 20 2f 2a 20 75 6e | 64 6f 20 62 69 74 66 61 | /* un|do bitfa|
|00002c40| 74 20 66 72 65 65 20 2a | 2f 0a 20 20 20 20 20 20 |t free *|/. |
|00002c50| 6e 65 77 76 61 6c 3d 31 | 3b 0a 20 20 20 20 20 20 |newval=1|;. |
|00002c60| 66 6f 72 28 69 3d 30 3b | 69 3c 6f 6c 64 5f 73 69 |for(i=0;|i<old_si|
|00002c70| 7a 65 3b 2b 2b 69 29 64 | 62 6c 5f 62 69 74 66 61 |ze;++i)d|bl_bitfa|
|00002c80| 74 5f 76 61 6c 75 65 28 | 73 62 2c 6f 6c 64 5f 73 |t_value(|sb,old_s|
|00002c90| 65 6b 74 6f 72 2b 69 2c | 63 76 66 6e 72 2c 26 6e |ektor+i,|cvfnr,&n|
|00002ca0| 65 77 76 61 6c 29 3b 0a | 20 20 20 20 7d 0a 20 20 |ewval);.| }. |
|00002cb0| 20 20 75 6e 6c 6f 63 6b | 5f 61 6c 6c 6f 63 28 29 | unlock|_alloc()|
|00002cc0| 3b 0a 20 20 20 20 72 65 | 74 75 72 6e 20 2d 45 4e |;. re|turn -EN|
|00002cd0| 4f 53 50 43 3b 20 2f 2a | 20 64 69 73 6b 20 66 75 |OSPC; /*| disk fu|
|00002ce0| 6c 6c 20 2a 2f 0a 20 20 | 7d 0a 20 20 2f 2a 20 63 |ll */. |}. /* c|
|00002cf0| 68 65 63 6b 20 77 68 65 | 74 68 65 72 20 72 65 61 |heck whe|ther rea|
|00002d00| 6c 6c 79 20 66 72 65 65 | 20 28 62 75 67 20 73 75 |lly free| (bug su|
|00002d10| 70 70 6f 73 65 64 20 69 | 6e 20 66 69 6e 64 5f 66 |pposed i|n find_f|
|00002d20| 72 65 65 5f 62 69 74 66 | 61 74 29 20 2a 2f 0a 20 |ree_bitf|at) */. |
|00002d30| 20 66 6f 72 28 69 3d 30 | 3b 69 3c 6e 65 77 5f 73 | for(i=0|;i<new_s|
|00002d40| 69 7a 65 3b 2b 2b 69 29 | 0a 20 20 7b 20 69 66 28 |ize;++i)|. { if(|
|00002d50| 64 62 6c 5f 62 69 74 66 | 61 74 5f 76 61 6c 75 65 |dbl_bitf|at_value|
|00002d60| 28 73 62 2c 73 65 6b 74 | 6f 72 2b 69 2c 63 76 66 |(sb,sekt|or+i,cvf|
|00002d70| 6e 72 2c 4e 55 4c 4c 29 | 29 0a 20 20 20 20 7b 20 |nr,NULL)|). { |
|00002d80| 70 72 69 6e 74 6b 28 4b | 45 52 4e 5f 45 4d 45 52 |printk(K|ERN_EMER|
|00002d90| 47 20 22 44 4d 53 44 4f | 53 3a 20 66 69 6e 64 5f |G "DMSDO|S: find_|
|00002da0| 66 72 65 65 5f 62 69 74 | 66 61 74 20 72 65 74 75 |free_bit|fat retu|
|00002db0| 72 6e 65 64 20 73 65 6b | 74 6f 72 20 25 64 20 73 |rned sek|tor %d s|
|00002dc0| 69 7a 65 20 25 64 20 62 | 75 74 20 74 68 65 79 20 |ize %d b|ut they |
|00002dd0| 61 72 65 20 6e 6f 74 20 | 61 6c 6c 20 66 72 65 65 |are not |all free|
|00002de0| 21 5c 6e 22 2c 0a 20 20 | 20 20 20 20 20 20 20 20 |!\n",. | |
|00002df0| 20 20 20 73 65 6b 74 6f | 72 2c 6e 65 77 5f 73 69 | sekto|r,new_si|
|00002e00| 7a 65 29 3b 0a 20 20 20 | 20 20 20 75 6e 6c 6f 63 |ze);. | unloc|
|00002e10| 6b 5f 61 6c 6c 6f 63 28 | 29 3b 0a 20 20 20 20 20 |k_alloc(|);. |
|00002e20| 20 70 61 6e 69 63 28 22 | 54 68 69 73 20 69 73 20 | panic("|This is |
|00002e30| 61 20 64 6d 73 64 6f 73 | 20 62 75 67 20 2d 20 72 |a dmsdos| bug - r|
|00002e40| 65 62 6f 6f 74 20 61 6e | 64 20 63 68 65 63 6b 20 |eboot an|d check |
|00002e50| 66 69 6c 65 73 79 73 74 | 65 6d 5c 6e 22 29 3b 0a |filesyst|em\n");.|
|00002e60| 20 20 20 20 20 20 72 65 | 74 75 72 6e 20 2d 45 49 | re|turn -EI|
|00002e70| 4f 3b 0a 20 20 20 20 7d | 0a 20 20 7d 0a 20 20 6e |O;. }|. }. n|
|00002e80| 65 77 76 61 6c 3d 31 3b | 0a 20 20 2f 2a 70 72 69 |ewval=1;|. /*pri|
|00002e90| 6e 74 6b 28 22 44 4d 53 | 44 4f 53 3a 20 72 65 70 |ntk("DMS|DOS: rep|
|00002ea0| 6c 61 63 65 5f 65 78 69 | 73 74 69 6e 67 5f 63 6c |lace_exi|sting_cl|
|00002eb0| 75 73 74 65 72 3a 20 61 | 6c 6c 6f 63 61 74 69 6e |uster: a|llocatin|
|00002ec0| 67 20 69 6e 20 62 69 74 | 66 61 74 2e 2e 2e 5c 6e |g in bit|fat...\n|
|00002ed0| 22 29 3b 2a 2f 0a 20 20 | 66 6f 72 28 69 3d 30 3b |");*/. |for(i=0;|
|00002ee0| 69 3c 6e 65 77 5f 73 69 | 7a 65 3b 2b 2b 69 29 64 |i<new_si|ze;++i)d|
|00002ef0| 62 6c 5f 62 69 74 66 61 | 74 5f 76 61 6c 75 65 28 |bl_bitfa|t_value(|
|00002f00| 73 62 2c 73 65 6b 74 6f | 72 2b 69 2c 63 76 66 6e |sb,sekto|r+i,cvfn|
|00002f10| 72 2c 26 6e 65 77 76 61 | 6c 29 3b 0a 20 20 0a 6d |r,&newva|l);. .m|
|00002f20| 64 66 61 74 5f 75 70 64 | 61 74 65 3a 0a 20 20 6e |dfat_upd|ate:. n|
|00002f30| 65 77 5f 6d 64 65 2e 73 | 65 63 74 6f 72 5f 6d 69 |ew_mde.s|ector_mi|
|00002f40| 6e 75 73 5f 31 3d 73 65 | 6b 74 6f 72 2d 31 3b 0a |nus_1=se|ktor-1;.|
|00002f50| 20 20 6e 65 77 5f 6d 64 | 65 2e 73 69 7a 65 5f 6c | new_md|e.size_l|
|00002f60| 6f 5f 6d 69 6e 75 73 5f | 31 3d 6d 64 65 2d 3e 73 |o_minus_|1=mde->s|
|00002f70| 69 7a 65 5f 6c 6f 5f 6d | 69 6e 75 73 5f 31 3b 0a |ize_lo_m|inus_1;.|
|00002f80| 20 20 6e 65 77 5f 6d 64 | 65 2e 73 69 7a 65 5f 68 | new_md|e.size_h|
|00002f90| 69 5f 6d 69 6e 75 73 5f | 31 3d 6d 64 65 2d 3e 73 |i_minus_|1=mde->s|
|00002fa0| 69 7a 65 5f 68 69 5f 6d | 69 6e 75 73 5f 31 3b 0a |ize_hi_m|inus_1;.|
|00002fb0| 20 20 6e 65 77 5f 6d 64 | 65 2e 66 6c 61 67 73 3d | new_md|e.flags=|
|00002fc0| 6d 64 65 2d 3e 66 6c 61 | 67 73 7c 32 3b 0a 20 20 |mde->fla|gs|2;. |
|00002fd0| 2f 2a 70 72 69 6e 74 6b | 28 22 44 4d 53 44 4f 53 |/*printk|("DMSDOS|
|00002fe0| 3a 20 72 65 70 6c 61 63 | 65 5f 65 78 69 73 74 69 |: replac|e_existi|
|00002ff0| 6e 67 5f 63 6c 75 73 74 | 65 72 3a 20 77 72 69 74 |ng_clust|er: writ|
|00003000| 69 6e 67 20 6d 64 66 61 | 74 2e 2e 2e 5c 6e 22 29 |ing mdfa|t...\n")|
|00003010| 3b 2a 2f 0a 20 20 64 62 | 6c 5f 6d 64 66 61 74 5f |;*/. db|l_mdfat_|
|00003020| 76 61 6c 75 65 28 73 62 | 2c 63 6c 75 73 74 65 72 |value(sb|,cluster|
|00003030| 2c 63 76 66 6e 72 2c 26 | 6e 65 77 5f 6d 64 65 2c |,cvfnr,&|new_mde,|
|00003040| 26 64 75 6d 6d 79 29 3b | 0a 20 20 75 6e 6c 6f 63 |&dummy);|. unloc|
|00003050| 6b 5f 61 6c 6c 6f 63 28 | 29 3b 0a 20 20 72 65 74 |k_alloc(|);. ret|
|00003060| 75 72 6e 20 73 65 6b 74 | 6f 72 3b 20 2f 2a 20 6f |urn sekt|or; /* o|
|00003070| 6b 61 79 20 2a 2f 0a 7d | 0a 0a 2f 2a 20 75 73 65 |kay */.}|../* use|
|00003080| 72 20 70 72 65 66 65 72 | 61 62 6c 65 20 63 6c 75 |r prefer|able clu|
|00003090| 73 74 65 72 20 61 6c 6c | 6f 63 61 74 69 6f 6e 20 |ster all|ocation |
|000030a0| 66 75 6e 63 74 69 6f 6e | 73 20 66 6f 72 20 64 69 |function|s for di|
|000030b0| 72 65 63 74 6f 72 69 65 | 73 20 2a 2f 0a 2f 2a 20 |rectorie|s */./* |
|000030c0| 63 6c 75 73 74 65 72 20 | 69 73 20 75 6e 63 6f 6d |cluster |is uncom|
|000030d0| 70 72 65 73 73 65 64 2c | 20 6f 66 20 6d 61 78 69 |pressed,| of maxi|
|000030e0| 6d 75 6d 20 73 69 7a 65 | 20 61 6e 64 20 7a 65 72 |mum size| and zer|
|000030f0| 6f 64 20 6f 75 74 20 61 | 6e 64 20 77 72 69 74 74 |od out a|nd writt|
|00003100| 65 6e 20 2a 2f 0a 0a 69 | 6e 74 20 61 6c 6c 6f 63 |en */..i|nt alloc|
|00003110| 61 74 65 5f 66 69 72 73 | 74 5f 64 69 72 5f 63 6c |ate_firs|t_dir_cl|
|00003120| 75 73 74 65 72 28 73 74 | 72 75 63 74 20 73 75 70 |uster(st|ruct sup|
|00003130| 65 72 5f 62 6c 6f 63 6b | 2a 73 62 2c 69 6e 74 20 |er_block|*sb,int |
|00003140| 63 76 66 6e 72 29 0a 7b | 20 69 6e 74 20 72 65 73 |cvfnr).{| int res|
|00003150| 3b 0a 20 20 69 6e 74 20 | 73 65 6b 74 6f 72 3b 0a |;. int |sektor;.|
|00003160| 20 20 69 6e 74 20 63 6c | 75 73 74 65 72 3b 0a 20 | int cl|uster;. |
|00003170| 20 69 6e 74 20 69 3b 0a | 20 20 69 6e 74 20 73 69 | int i;.| int si|
|00003180| 7a 65 3b 0a 20 20 73 74 | 72 75 63 74 20 62 75 66 |ze;. st|ruct buf|
|00003190| 66 65 72 5f 68 65 61 64 | 2a 62 68 3b 0a 20 20 69 |fer_head|*bh;. i|
|000031a0| 6e 74 20 6e 65 77 76 61 | 6c 3b 0a 20 20 4d 64 66 |nt newva|l;. Mdf|
|000031b0| 61 74 5f 65 6e 74 72 79 | 20 6d 64 65 3b 0a 20 20 |at_entry| mde;. |
|000031c0| 0a 20 20 72 65 73 3d 61 | 6c 6c 6f 63 61 74 65 5f |. res=a|llocate_|
|000031d0| 66 69 72 73 74 5f 63 6c | 75 73 74 65 72 28 73 62 |first_cl|uster(sb|
|000031e0| 2c 63 76 66 6e 72 29 3b | 0a 20 20 69 66 28 72 65 |,cvfnr);|. if(re|
|000031f0| 73 3c 3d 30 29 72 65 74 | 75 72 6e 20 72 65 73 3b |s<=0)ret|urn res;|
|00003200| 0a 20 20 63 6c 75 73 74 | 65 72 3d 72 65 73 3b 0a |. clust|er=res;.|
|00003210| 20 20 73 69 7a 65 3d 64 | 62 6c 73 62 5b 63 76 66 | size=d|blsb[cvf|
|00003220| 6e 72 5d 2e 73 5f 73 65 | 63 74 70 65 72 63 6c 75 |nr].s_se|ctperclu|
|00003230| 73 74 3b 0a 20 20 6d 64 | 65 2e 73 69 7a 65 5f 6c |st;. md|e.size_l|
|00003240| 6f 5f 6d 69 6e 75 73 5f | 31 3d 73 69 7a 65 2d 31 |o_minus_|1=size-1|
|00003250| 3b 0a 20 20 6d 64 65 2e | 73 69 7a 65 5f 68 69 5f |;. mde.|size_hi_|
|00003260| 6d 69 6e 75 73 5f 31 3d | 73 69 7a 65 2d 31 3b 0a |minus_1=|size-1;.|
|00003270| 20 20 6d 64 65 2e 66 6c | 61 67 73 3d 33 3b 0a 20 | mde.fl|ags=3;. |
|00003280| 20 72 65 73 3d 72 65 70 | 6c 61 63 65 5f 65 78 69 | res=rep|lace_exi|
|00003290| 73 74 69 6e 67 5f 63 6c | 75 73 74 65 72 28 73 62 |sting_cl|uster(sb|
|000032a0| 2c 63 6c 75 73 74 65 72 | 2c 30 2c 26 6d 64 65 2c |,cluster|,0,&mde,|
|000032b0| 63 76 66 6e 72 29 3b 0a | 20 20 69 66 28 72 65 73 |cvfnr);.| if(res|
|000032c0| 3c 30 29 0a 20 20 7b 20 | 2f 2a 20 75 6e 64 6f 20 |<0). { |/* undo |
|000032d0| 63 6c 75 73 74 65 72 20 | 61 6c 6c 6f 63 61 74 69 |cluster |allocati|
|000032e0| 6f 6e 20 2a 2f 0a 20 20 | 20 20 6e 65 77 76 61 6c |on */. | newval|
|000032f0| 3d 30 3b 0a 20 20 20 20 | 64 62 6c 5f 66 61 74 5f |=0;. |dbl_fat_|
|00003300| 6e 65 78 74 63 6c 75 73 | 74 65 72 28 73 62 2c 63 |nextclus|ter(sb,c|
|00003310| 6c 75 73 74 65 72 2c 63 | 76 66 6e 72 2c 26 6e 65 |luster,c|vfnr,&ne|
|00003320| 77 76 61 6c 29 3b 20 0a | 20 20 20 20 72 65 74 75 |wval); .| retu|
|00003330| 72 6e 20 72 65 73 3b 0a | 20 20 7d 0a 20 20 0a 20 |rn res;.| }. . |
|00003340| 20 2f 2a 20 7a 65 72 6f | 20 69 74 20 6f 75 74 20 | /* zero| it out |
|00003350| 73 69 6e 63 65 20 69 74 | 20 69 73 20 61 6e 20 65 |since it| is an e|
|00003360| 6d 70 74 79 20 64 69 72 | 20 63 6c 75 73 74 65 72 |mpty dir| cluster|
|00003370| 20 2a 2f 0a 20 20 73 65 | 6b 74 6f 72 3d 72 65 73 | */. se|ktor=res|
|00003380| 3b 0a 20 20 66 6f 72 28 | 69 3d 30 3b 69 3c 73 69 |;. for(|i=0;i<si|
|00003390| 7a 65 3b 2b 2b 69 29 0a | 20 20 7b 20 62 68 3d 6e |ze;++i).| { bh=n|
|000033a0| 6f 72 65 61 64 5f 64 62 | 6c 5f 73 65 63 74 6f 72 |oread_db|l_sector|
|000033b0| 28 73 62 2c 73 65 6b 74 | 6f 72 2b 69 2c 63 76 66 |(sb,sekt|or+i,cvf|
|000033c0| 6e 72 29 3b 0a 20 20 20 | 20 69 66 28 62 68 3d 3d |nr);. | if(bh==|
|000033d0| 4e 55 4c 4c 29 0a 20 20 | 20 20 7b 20 2f 2a 20 75 |NULL). | { /* u|
|000033e0| 6e 64 6f 20 63 6c 75 73 | 74 65 72 20 61 6c 6c 6f |ndo clus|ter allo|
|000033f0| 63 61 74 69 6f 6e 20 2a | 2f 0a 20 20 20 20 20 20 |cation *|/. |
|00003400| 6e 65 77 76 61 6c 3d 30 | 3b 0a 20 20 20 20 20 20 |newval=0|;. |
|00003410| 64 62 6c 5f 66 61 74 5f | 6e 65 78 74 63 6c 75 73 |dbl_fat_|nextclus|
|00003420| 74 65 72 28 73 62 2c 63 | 6c 75 73 74 65 72 2c 63 |ter(sb,c|luster,c|
|00003430| 76 66 6e 72 2c 26 6e 65 | 77 76 61 6c 29 3b 0a 20 |vfnr,&ne|wval);. |
|00003440| 20 20 20 20 20 72 65 74 | 75 72 6e 20 2d 45 49 4f | ret|urn -EIO|
|00003450| 3b 0a 20 20 20 20 7d 0a | 20 20 20 20 6d 65 6d 73 |;. }.| mems|
|00003460| 65 74 28 62 68 2d 3e 62 | 5f 64 61 74 61 2c 30 2c |et(bh->b|_data,0,|
|00003470| 53 45 43 54 4f 52 5f 53 | 49 5a 45 29 3b 0a 20 20 |SECTOR_S|IZE);. |
|00003480| 20 20 62 68 5f 64 69 72 | 74 79 28 73 62 2c 62 68 | bh_dir|ty(sb,bh|
|00003490| 29 3b 0a 20 20 20 20 62 | 68 5f 66 72 65 65 28 73 |);. b|h_free(s|
|000034a0| 62 2c 62 68 29 3b 0a 20 | 20 7d 0a 20 20 0a 20 20 |b,bh);. | }. . |
|000034b0| 72 65 74 75 72 6e 20 63 | 6c 75 73 74 65 72 3b 0a |return c|luster;.|
|000034c0| 7d 0a 0a 69 6e 74 20 61 | 6c 6c 6f 63 61 74 65 5f |}..int a|llocate_|
|000034d0| 6e 65 78 74 5f 64 69 72 | 5f 63 6c 75 73 74 65 72 |next_dir|_cluster|
|000034e0| 28 73 74 72 75 63 74 20 | 73 75 70 65 72 5f 62 6c |(struct |super_bl|
|000034f0| 6f 63 6b 2a 73 62 2c 20 | 69 6e 74 20 61 6b 74 5f |ock*sb, |int akt_|
|00003500| 63 6c 75 73 74 65 72 2c | 0a 20 20 20 20 20 20 20 |cluster,|. |
|00003510| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00003520| 20 20 20 20 20 20 20 69 | 6e 74 20 63 76 66 6e 72 | i|nt cvfnr|
|00003530| 29 0a 7b 20 69 6e 74 20 | 72 65 73 3b 0a 20 20 69 |).{ int |res;. i|
|00003540| 6e 74 20 73 65 6b 74 6f | 72 3b 0a 20 20 69 6e 74 |nt sekto|r;. int|
|00003550| 20 69 3b 0a 20 20 73 74 | 72 75 63 74 20 62 75 66 | i;. st|ruct buf|
|00003560| 66 65 72 5f 68 65 61 64 | 2a 62 68 3b 0a 20 20 69 |fer_head|*bh;. i|
|00003570| 6e 74 20 63 6c 75 73 74 | 65 72 3b 0a 20 20 69 6e |nt clust|er;. in|
|00003580| 74 20 73 69 7a 65 3b 0a | 20 20 69 6e 74 20 6e 65 |t size;.| int ne|
|00003590| 77 76 61 6c 3b 0a 20 20 | 4d 64 66 61 74 5f 65 6e |wval;. |Mdfat_en|
|000035a0| 74 72 79 20 6d 64 65 3b | 0a 20 20 0a 20 20 72 65 |try mde;|. . re|
|000035b0| 73 3d 61 6c 6c 6f 63 61 | 74 65 5f 6e 65 78 74 5f |s=alloca|te_next_|
|000035c0| 63 6c 75 73 74 65 72 28 | 73 62 2c 61 6b 74 5f 63 |cluster(|sb,akt_c|
|000035d0| 6c 75 73 74 65 72 2c 63 | 76 66 6e 72 29 3b 0a 20 |luster,c|vfnr);. |
|000035e0| 20 69 66 28 72 65 73 3c | 3d 30 29 72 65 74 75 72 | if(res<|=0)retur|
|000035f0| 6e 20 72 65 73 3b 0a 20 | 20 63 6c 75 73 74 65 72 |n res;. | cluster|
|00003600| 3d 72 65 73 3b 0a 20 20 | 73 69 7a 65 3d 64 62 6c |=res;. |size=dbl|
|00003610| 73 62 5b 63 76 66 6e 72 | 5d 2e 73 5f 73 65 63 74 |sb[cvfnr|].s_sect|
|00003620| 70 65 72 63 6c 75 73 74 | 3b 0a 20 20 6d 64 65 2e |perclust|;. mde.|
|00003630| 73 69 7a 65 5f 6c 6f 5f | 6d 69 6e 75 73 5f 31 3d |size_lo_|minus_1=|
|00003640| 73 69 7a 65 2d 31 3b 0a | 20 20 6d 64 65 2e 73 69 |size-1;.| mde.si|
|00003650| 7a 65 5f 68 69 5f 6d 69 | 6e 75 73 5f 31 3d 73 69 |ze_hi_mi|nus_1=si|
|00003660| 7a 65 2d 31 3b 0a 20 20 | 6d 64 65 2e 66 6c 61 67 |ze-1;. |mde.flag|
|00003670| 73 3d 33 3b 0a 20 20 73 | 65 6b 74 6f 72 3d 64 62 |s=3;. s|ektor=db|
|00003680| 6c 5f 6d 64 66 61 74 5f | 63 6c 75 73 74 65 72 32 |l_mdfat_|cluster2|
|00003690| 73 65 63 74 6f 72 28 73 | 62 2c 61 6b 74 5f 63 6c |sector(s|b,akt_cl|
|000036a0| 75 73 74 65 72 2c 63 76 | 66 6e 72 29 3b 0a 20 20 |uster,cv|fnr);. |
|000036b0| 72 65 73 3d 72 65 70 6c | 61 63 65 5f 65 78 69 73 |res=repl|ace_exis|
|000036c0| 74 69 6e 67 5f 63 6c 75 | 73 74 65 72 28 73 62 2c |ting_clu|ster(sb,|
|000036d0| 63 6c 75 73 74 65 72 2c | 73 65 6b 74 6f 72 2c 26 |cluster,|sektor,&|
|000036e0| 6d 64 65 2c 63 76 66 6e | 72 29 3b 0a 20 20 69 66 |mde,cvfn|r);. if|
|000036f0| 28 72 65 73 3c 30 29 0a | 20 20 7b 20 2f 2a 20 75 |(res<0).| { /* u|
|00003700| 6e 64 6f 20 63 6c 75 73 | 74 65 72 20 61 6c 6c 6f |ndo clus|ter allo|
|00003710| 63 61 74 69 6f 6e 20 2a | 2f 0a 20 20 20 20 6e 65 |cation *|/. ne|
|00003720| 77 76 61 6c 3d 30 3b 0a | 20 20 20 20 64 62 6c 5f |wval=0;.| dbl_|
|00003730| 66 61 74 5f 6e 65 78 74 | 63 6c 75 73 74 65 72 28 |fat_next|cluster(|
|00003740| 73 62 2c 63 6c 75 73 74 | 65 72 2c 63 76 66 6e 72 |sb,clust|er,cvfnr|
|00003750| 2c 26 6e 65 77 76 61 6c | 29 3b 0a 20 20 20 20 6e |,&newval|);. n|
|00003760| 65 77 76 61 6c 3d 2d 31 | 3b 0a 20 20 20 20 64 62 |ewval=-1|;. db|
|00003770| 6c 5f 66 61 74 5f 6e 65 | 78 74 63 6c 75 73 74 65 |l_fat_ne|xtcluste|
|00003780| 72 28 73 62 2c 61 6b 74 | 5f 63 6c 75 73 74 65 72 |r(sb,akt|_cluster|
|00003790| 2c 63 76 66 6e 72 2c 26 | 6e 65 77 76 61 6c 29 3b |,cvfnr,&|newval);|
|000037a0| 0a 20 20 20 20 72 65 74 | 75 72 6e 20 72 65 73 3b |. ret|urn res;|
|000037b0| 0a 20 20 7d 0a 20 20 0a | 20 20 2f 2a 20 7a 65 72 |. }. .| /* zer|
|000037c0| 6f 20 69 74 20 6f 75 74 | 20 73 69 6e 63 65 20 69 |o it out| since i|
|000037d0| 74 20 69 73 20 61 6e 20 | 65 6d 70 74 79 20 64 69 |t is an |empty di|
|000037e0| 72 20 63 6c 75 73 74 65 | 72 20 2a 2f 0a 20 20 73 |r cluste|r */. s|
|000037f0| 65 6b 74 6f 72 3d 72 65 | 73 3b 0a 20 20 66 6f 72 |ektor=re|s;. for|
|00003800| 28 69 3d 30 3b 69 3c 73 | 69 7a 65 3b 2b 2b 69 29 |(i=0;i<s|ize;++i)|
|00003810| 0a 20 20 7b 20 62 68 3d | 6e 6f 72 65 61 64 5f 64 |. { bh=|noread_d|
|00003820| 62 6c 5f 73 65 63 74 6f | 72 28 73 62 2c 73 65 6b |bl_secto|r(sb,sek|
|00003830| 74 6f 72 2b 69 2c 63 76 | 66 6e 72 29 3b 0a 20 20 |tor+i,cv|fnr);. |
|00003840| 20 20 69 66 28 62 68 3d | 3d 4e 55 4c 4c 29 0a 20 | if(bh=|=NULL). |
|00003850| 20 20 20 7b 20 2f 2a 20 | 75 6e 64 6f 20 63 6c 75 | { /* |undo clu|
|00003860| 73 74 65 72 20 61 6c 6c | 6f 63 61 74 69 6f 6e 20 |ster all|ocation |
|00003870| 2a 2f 0a 20 20 20 20 20 | 20 6e 65 77 76 61 6c 3d |*/. | newval=|
|00003880| 30 3b 0a 20 20 20 20 20 | 20 64 62 6c 5f 66 61 74 |0;. | dbl_fat|
|00003890| 5f 6e 65 78 74 63 6c 75 | 73 74 65 72 28 73 62 2c |_nextclu|ster(sb,|
|000038a0| 63 6c 75 73 74 65 72 2c | 63 76 66 6e 72 2c 26 6e |cluster,|cvfnr,&n|
|000038b0| 65 77 76 61 6c 29 3b 0a | 20 20 20 20 20 20 6e 65 |ewval);.| ne|
|000038c0| 77 76 61 6c 3d 2d 31 3b | 20 2f 2a 20 63 75 74 20 |wval=-1;| /* cut |
|000038d0| 6f 66 66 20 6f 72 20 64 | 69 72 65 63 74 6f 72 79 |off or d|irectory|
|000038e0| 20 77 69 6c 6c 20 62 65 | 20 75 6e 72 65 61 64 61 | will be| unreada|
|000038f0| 62 6c 65 20 2a 2f 0a 20 | 20 20 20 20 20 64 62 6c |ble */. | dbl|
|00003900| 5f 66 61 74 5f 6e 65 78 | 74 63 6c 75 73 74 65 72 |_fat_nex|tcluster|
|00003910| 28 73 62 2c 61 6b 74 5f | 63 6c 75 73 74 65 72 2c |(sb,akt_|cluster,|
|00003920| 63 76 66 6e 72 2c 26 6e | 65 77 76 61 6c 29 3b 0a |cvfnr,&n|ewval);.|
|00003930| 20 20 20 20 20 20 72 65 | 74 75 72 6e 20 2d 45 49 | re|turn -EI|
|00003940| 4f 3b 0a 20 20 20 20 7d | 0a 20 20 20 20 6d 65 6d |O;. }|. mem|
|00003950| 73 65 74 28 62 68 2d 3e | 62 5f 64 61 74 61 2c 30 |set(bh->|b_data,0|
|00003960| 2c 53 45 43 54 4f 52 5f | 53 49 5a 45 29 3b 0a 20 |,SECTOR_|SIZE);. |
|00003970| 20 20 20 62 68 5f 64 69 | 72 74 79 28 73 62 2c 62 | bh_di|rty(sb,b|
|00003980| 68 29 3b 0a 20 20 20 20 | 62 68 5f 66 72 65 65 28 |h);. |bh_free(|
|00003990| 73 62 2c 62 68 29 3b 0a | 20 20 7d 0a 20 20 0a 20 |sb,bh);.| }. . |
|000039a0| 20 72 65 74 75 72 6e 20 | 63 6c 75 73 74 65 72 3b | return |cluster;|
|000039b0| 0a 7d 0a 0a 69 6e 74 20 | 73 63 61 6e 5f 64 62 6c |.}..int |scan_dbl|
|000039c0| 5f 64 69 72 5f 34 5f 65 | 6d 70 74 79 28 73 74 72 |_dir_4_e|mpty(str|
|000039d0| 75 63 74 20 73 75 70 65 | 72 5f 62 6c 6f 63 6b 2a |uct supe|r_block*|
|000039e0| 73 62 2c 20 69 6e 74 20 | 64 69 72 73 74 61 72 74 |sb, int |dirstart|
|000039f0| 63 6c 75 73 74 2c 20 69 | 6e 74 20 63 76 66 6e 72 |clust, i|nt cvfnr|
|00003a00| 29 0a 7b 20 20 72 65 74 | 75 72 6e 20 73 63 61 6e |).{ ret|urn scan|
|00003a10| 5f 64 62 6c 5f 64 69 72 | 5f 34 5f 6e 5f 65 6d 70 |_dbl_dir|_4_n_emp|
|00003a20| 74 79 28 73 62 2c 64 69 | 72 73 74 61 72 74 63 6c |ty(sb,di|rstartcl|
|00003a30| 75 73 74 2c 63 76 66 6e | 72 2c 31 2c 4e 55 4c 4c |ust,cvfn|r,1,NULL|
|00003a40| 29 3b 0a 7d 0a 0a 2f 2a | 20 66 69 6e 64 20 6e 20 |);.}../*| find n |
|00003a50| 65 6d 70 74 79 20 64 69 | 72 20 65 6e 74 72 69 65 |empty di|r entrie|
|00003a60| 73 0a 20 20 20 61 70 70 | 65 6e 64 20 61 20 64 69 |s. app|end a di|
|00003a70| 72 20 63 6c 75 73 74 65 | 72 20 69 66 20 6e 65 63 |r cluste|r if nec|
|00003a80| 65 73 73 61 72 79 0a 20 | 20 20 66 69 6c 6c 73 20 |essary. | fills |
|00003a90| 6c 66 6e 5f 69 6e 6f 73 | 20 69 66 20 21 3d 4e 55 |lfn_inos| if !=NU|
|00003aa0| 4c 4c 0a 2a 2f 0a 0a 69 | 6e 74 20 73 63 61 6e 5f |LL.*/..i|nt scan_|
|00003ab0| 64 62 6c 5f 64 69 72 5f | 34 5f 6e 5f 65 6d 70 74 |dbl_dir_|4_n_empt|
|00003ac0| 79 28 73 74 72 75 63 74 | 20 73 75 70 65 72 5f 62 |y(struct| super_b|
|00003ad0| 6c 6f 63 6b 2a 73 62 2c | 20 69 6e 74 20 64 69 72 |lock*sb,| int dir|
|00003ae0| 73 74 61 72 74 63 6c 75 | 73 74 2c 20 69 6e 74 20 |startclu|st, int |
|00003af0| 63 76 66 6e 72 2c 0a 20 | 20 20 20 20 20 20 20 20 |cvfnr,. | |
|00003b00| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00003b10| 20 20 69 6e 74 20 6e 2c | 69 6e 74 2a 6c 66 6e 5f | int n,|int*lfn_|
|00003b20| 69 6e 6f 73 29 0a 7b 20 | 69 6e 74 20 69 6e 6f 3b |inos).{ |int ino;|
|00003b30| 0a 20 20 69 6e 74 20 65 | 6e 74 3d 30 3b 0a 20 20 |. int e|nt=0;. |
|00003b40| 75 6e 73 69 67 6e 65 64 | 20 63 68 61 72 20 62 75 |unsigned| char bu|
|00003b50| 66 5b 33 32 5d 3b 0a 20 | 20 69 6e 74 20 6c 61 73 |f[32];. | int las|
|00003b60| 74 63 6c 75 73 74 65 72 | 3b 0a 20 20 69 6e 74 20 |tcluster|;. int |
|00003b70| 6d 65 72 6b 3b 0a 20 20 | 73 74 72 75 63 74 20 69 |merk;. |struct i|
|00003b80| 6e 6f 64 65 20 2a 20 69 | 6e 6f 64 65 3b 0a 20 20 |node * i|node;. |
|00003b90| 69 6e 74 20 66 6f 75 6e | 64 3d 30 3b 0a 20 20 0a |int foun|d=0;. .|
|00003ba0| 20 20 2f 2a 20 66 69 6c | 6c 20 66 69 72 73 74 20 | /* fil|l first |
|00003bb0| 75 6e 75 73 65 64 20 77 | 69 74 68 20 7a 65 72 6f |unused w|ith zero|
|00003bc0| 20 2d 2d 20 66 6f 72 20 | 73 61 66 65 74 79 20 2a | -- for |safety *|
|00003bd0| 2f 0a 20 20 69 66 28 6c | 66 6e 5f 69 6e 6f 73 29 |/. if(l|fn_inos)|
|00003be0| 6c 66 6e 5f 69 6e 6f 73 | 5b 6e 5d 3d 30 3b 0a 20 |lfn_inos|[n]=0;. |
|00003bf0| 20 0a 20 20 77 68 69 6c | 65 28 28 69 6e 6f 3d 72 | . whil|e((ino=r|
|00003c00| 65 61 64 5f 64 62 6c 5f | 64 69 72 65 6e 74 72 79 |ead_dbl_|direntry|
|00003c10| 28 73 62 2c 64 69 72 73 | 74 61 72 74 63 6c 75 73 |(sb,dirs|tartclus|
|00003c20| 74 2c 63 76 66 6e 72 2c | 65 6e 74 2c 62 75 66 29 |t,cvfnr,|ent,buf)|
|00003c30| 29 3e 30 29 0a 20 20 7b | 20 2b 2b 65 6e 74 3b 0a |)>0). {| ++ent;.|
|00003c40| 20 20 20 20 69 66 28 62 | 75 66 5b 30 5d 3d 3d 30 | if(b|uf[0]==0|
|00003c50| 78 65 35 7c 7c 62 75 66 | 5b 30 5d 3d 3d 30 29 0a |xe5||buf|[0]==0).|
|00003c60| 20 20 20 20 7b 20 20 69 | 6e 6f 64 65 3d 69 67 65 | { i|node=ige|
|00003c70| 74 28 73 62 2c 69 6e 6f | 29 3b 0a 20 20 20 20 20 |t(sb,ino|);. |
|00003c80| 20 20 69 66 28 4d 53 44 | 4f 53 5f 49 28 69 6e 6f | if(MSD|OS_I(ino|
|00003c90| 64 65 29 2d 3e 69 5f 62 | 75 73 79 3d 3d 30 29 0a |de)->i_b|usy==0).|
|00003ca0| 20 20 20 20 20 20 20 7b | 20 69 70 75 74 28 69 6e | {| iput(in|
|00003cb0| 6f 64 65 29 3b 0a 20 20 | 20 20 20 20 20 20 20 2b |ode);. | +|
|00003cc0| 2b 66 6f 75 6e 64 3b 0a | 20 20 20 20 20 20 20 20 |+found;.| |
|00003cd0| 20 69 66 28 6c 66 6e 5f | 69 6e 6f 73 29 6c 66 6e | if(lfn_|inos)lfn|
|00003ce0| 5f 69 6e 6f 73 5b 6e 2d | 66 6f 75 6e 64 5d 3d 69 |_inos[n-|found]=i|
|00003cf0| 6e 6f 3b 0a 20 20 20 20 | 20 20 20 20 20 69 66 28 |no;. | if(|
|00003d00| 6e 3d 3d 66 6f 75 6e 64 | 29 72 65 74 75 72 6e 20 |n==found|)return |
|00003d10| 69 6e 6f 3b 0a 20 20 20 | 20 20 20 20 7d 0a 20 20 |ino;. | }. |
|00003d20| 20 20 20 20 20 65 6c 73 | 65 0a 20 20 20 20 20 20 | els|e. |
|00003d30| 20 7b 20 66 6f 75 6e 64 | 3d 30 3b 0a 20 20 20 20 | { found|=0;. |
|00003d40| 20 20 20 20 20 69 70 75 | 74 28 69 6e 6f 64 65 29 | ipu|t(inode)|
|00003d50| 3b 0a 20 20 20 20 20 20 | 20 7d 0a 20 20 20 20 7d |;. | }. }|
|00003d60| 0a 20 20 20 20 65 6c 73 | 65 20 66 6f 75 6e 64 3d |. els|e found=|
|00003d70| 30 3b 0a 20 20 20 20 0a | 20 20 7d 0a 20 20 69 66 |0;. .| }. if|
|00003d80| 28 64 69 72 73 74 61 72 | 74 63 6c 75 73 74 3d 3d |(dirstar|tclust==|
|00003d90| 30 29 72 65 74 75 72 6e | 20 2d 45 4e 4f 53 50 43 |0)return| -ENOSPC|
|00003da0| 3b 20 2f 2a 20 72 6f 6f | 74 20 64 69 72 20 66 75 |; /* roo|t dir fu|
|00003db0| 6c 6c 20 2a 2f 0a 20 20 | 0a 20 20 69 66 28 65 6e |ll */. |. if(en|
|00003dc0| 74 25 28 64 62 6c 73 62 | 5b 63 76 66 6e 72 5d 2e |t%(dblsb|[cvfnr].|
|00003dd0| 73 5f 73 65 63 74 70 65 | 72 63 6c 75 73 74 2a 31 |s_sectpe|rclust*1|
|00003de0| 36 29 29 0a 20 20 7b 20 | 70 72 69 6e 74 6b 28 22 |6)). { |printk("|
|00003df0| 44 4d 53 44 4f 53 3a 20 | 73 63 61 6e 5f 64 62 6c |DMSDOS: |scan_dbl|
|00003e00| 5f 64 69 72 5f 34 5f 65 | 6d 70 74 79 3a 20 73 63 |_dir_4_e|mpty: sc|
|00003e10| 61 6e 20 65 72 72 6f 72 | 20 6f 63 63 75 72 65 64 |an error| occured|
|00003e20| 2c 20 72 65 66 75 73 69 | 6e 67 20 74 6f 20 61 70 |, refusi|ng to ap|
|00003e30| 70 65 6e 64 20 63 6c 75 | 73 74 65 72 5c 6e 22 29 |pend clu|ster\n")|
|00003e40| 3b 0a 20 20 20 20 72 65 | 74 75 72 6e 20 2d 45 4e |;. re|turn -EN|
|00003e50| 4f 53 50 43 3b 0a 20 20 | 7d 0a 20 20 0a 20 20 2f |OSPC;. |}. . /|
|00003e60| 2a 20 6f 6b 61 79 2c 20 | 6d 75 73 74 20 61 70 70 |* okay, |must app|
|00003e70| 65 6e 64 20 61 20 63 6c | 75 73 74 65 72 20 2a 2f |end a cl|uster */|
|00003e80| 0a 20 20 6c 61 73 74 63 | 6c 75 73 74 65 72 3d 64 |. lastc|luster=d|
|00003e90| 69 72 73 74 61 72 74 63 | 6c 75 73 74 3b 0a 20 20 |irstartc|lust;. |
|00003ea0| 77 68 69 6c 65 28 28 6d | 65 72 6b 3d 64 62 6c 5f |while((m|erk=dbl_|
|00003eb0| 66 61 74 5f 6e 65 78 74 | 63 6c 75 73 74 65 72 28 |fat_next|cluster(|
|00003ec0| 73 62 2c 6c 61 73 74 63 | 6c 75 73 74 65 72 2c 63 |sb,lastc|luster,c|
|00003ed0| 76 66 6e 72 2c 4e 55 4c | 4c 29 29 3e 30 29 0a 20 |vfnr,NUL|L))>0). |
|00003ee0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00003ef0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00003f00| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00003f10| 20 20 20 20 20 20 20 20 | 6c 61 73 74 63 6c 75 73 | |lastclus|
|00003f20| 74 65 72 3d 6d 65 72 6b | 3b 0a 20 20 6c 61 73 74 |ter=merk|;. last|
|00003f30| 63 6c 75 73 74 65 72 3d | 61 6c 6c 6f 63 61 74 65 |cluster=|allocate|
|00003f40| 5f 6e 65 78 74 5f 64 69 | 72 5f 63 6c 75 73 74 65 |_next_di|r_cluste|
|00003f50| 72 28 73 62 2c 6c 61 73 | 74 63 6c 75 73 74 65 72 |r(sb,las|tcluster|
|00003f60| 2c 63 76 66 6e 72 29 3b | 0a 20 20 69 66 28 6c 61 |,cvfnr);|. if(la|
|00003f70| 73 74 63 6c 75 73 74 65 | 72 3c 30 29 20 72 65 74 |stcluste|r<0) ret|
|00003f80| 75 72 6e 20 2d 45 4e 4f | 53 50 43 3b 20 2f 2a 20 |urn -ENO|SPC; /* |
|00003f90| 64 69 73 6b 20 66 75 6c | 6c 20 2a 2f 0a 20 20 2f |disk ful|l */. /|
|00003fa0| 2a 20 74 68 65 20 63 6c | 75 73 74 65 72 20 69 73 |* the cl|uster is|
|00003fb0| 20 61 6c 72 65 61 64 79 | 20 7a 65 72 6f 64 20 6f | already| zerod o|
|00003fc0| 75 74 20 2a 2f 0a 20 20 | 0a 20 20 77 68 69 6c 65 |ut */. |. while|
|00003fd0| 28 66 6f 75 6e 64 3c 6e | 29 0a 20 20 7b 0a 20 20 |(found<n|). {. |
|00003fe0| 20 20 69 6e 6f 3d 72 65 | 61 64 5f 64 62 6c 5f 64 | ino=re|ad_dbl_d|
|00003ff0| 69 72 65 6e 74 72 79 28 | 73 62 2c 64 69 72 73 74 |irentry(|sb,dirst|
|00004000| 61 72 74 63 6c 75 73 74 | 2c 63 76 66 6e 72 2c 65 |artclust|,cvfnr,e|
|00004010| 6e 74 2c 62 75 66 29 3b | 0a 20 20 20 20 69 66 28 |nt,buf);|. if(|
|00004020| 69 6e 6f 3c 30 29 0a 20 | 20 20 20 7b 20 70 72 69 |ino<0). | { pri|
|00004030| 6e 74 6b 28 22 44 4d 53 | 44 4f 53 3a 20 73 63 61 |ntk("DMS|DOS: sca|
|00004040| 6e 5f 64 62 6c 5f 64 69 | 72 5f 34 5f 65 6d 70 74 |n_dbl_di|r_4_empt|
|00004050| 79 3a 20 65 72 72 6f 72 | 20 61 66 74 65 72 20 61 |y: error| after a|
|00004060| 70 70 65 6e 64 69 6e 67 | 20 64 69 72 20 63 6c 75 |ppending| dir clu|
|00004070| 73 74 65 72 5c 6e 22 29 | 3b 0a 20 20 20 20 20 20 |ster\n")|;. |
|00004080| 72 65 74 75 72 6e 20 69 | 6e 6f 3b 0a 20 20 20 20 |return i|no;. |
|00004090| 7d 0a 20 20 20 20 2b 2b | 66 6f 75 6e 64 3b 2b 2b |}. ++|found;++|
|000040a0| 65 6e 74 3b 0a 20 20 20 | 20 69 66 28 6c 66 6e 5f |ent;. | if(lfn_|
|000040b0| 69 6e 6f 73 29 6c 66 6e | 5f 69 6e 6f 73 5b 6e 2d |inos)lfn|_inos[n-|
|000040c0| 66 6f 75 6e 64 5d 3d 69 | 6e 6f 3b 0a 20 20 7d 0a |found]=i|no;. }.|
|000040d0| 20 20 72 65 74 75 72 6e | 20 69 6e 6f 3b 0a 7d 0a | return| ino;.}.|
|000040e0| 0a 69 6e 74 20 6d 6f 76 | 65 62 61 63 6b 28 73 74 |.int mov|eback(st|
|000040f0| 72 75 63 74 20 73 75 70 | 65 72 5f 62 6c 6f 63 6b |ruct sup|er_block|
|00004100| 2a 73 62 2c 20 69 6e 74 | 20 63 6c 75 73 74 65 72 |*sb, int| cluster|
|00004110| 6e 72 2c 20 69 6e 74 20 | 63 76 66 6e 72 29 0a 7b |nr, int |cvfnr).{|
|00004120| 20 4d 64 66 61 74 5f 65 | 6e 74 72 79 20 6d 64 65 | Mdfat_e|ntry mde|
|00004130| 2c 64 75 6d 6d 79 3b 0a | 20 20 69 6e 74 20 73 65 |,dummy;.| int se|
|00004140| 63 74 6f 72 3b 0a 20 20 | 69 6e 74 20 69 2c 6e 65 |ctor;. |int i,ne|
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|00004eb0| 6f 6d 70 72 65 73 73 69 | 6f 6e 20 73 63 68 65 6d |ompressi|on schem|
|00004ec0| 65 20 67 75 65 73 73 69 | 6e 67 20 63 6f 64 65 20 |e guessi|ng code |
|00004ed0| 74 6f 20 72 65 74 75 72 | 6e 20 4a 4d 2d 30 2d 31 |to retur|n JM-0-1|
|00004ee0| 20 61 73 0a 20 20 20 72 | 65 73 75 6c 74 20 77 68 | as. r|esult wh|
|00004ef0| 65 6e 20 69 74 20 69 6e | 20 66 61 63 74 20 68 61 |en it in| fact ha|
|00004f00| 73 20 67 75 65 73 73 65 | 64 20 53 51 2d 30 2d 30 |s guesse|d SQ-0-0|
|00004f10| 2e 20 54 68 69 73 20 69 | 73 20 62 65 63 61 75 73 |. This i|s becaus|
|00004f20| 65 20 53 51 2d 30 2d 30 | 20 69 73 0a 20 20 20 63 |e SQ-0-0| is. c|
|00004f30| 75 72 72 65 6e 74 6c 79 | 20 75 6e 73 75 70 70 6f |urrently| unsuppo|
|00004f40| 72 74 65 64 2c 20 73 6f | 20 77 72 69 74 65 20 61 |rted, so| write a|
|00004f50| 63 63 65 73 73 20 77 6f | 75 6c 64 20 62 65 20 61 |ccess wo|uld be a|
|00004f60| 6c 77 61 79 73 20 75 6e | 63 6f 6d 70 72 65 73 73 |lways un|compress|
|00004f70| 65 64 20 6f 6e 0a 20 20 | 20 53 51 2d 30 2d 30 20 |ed on. | SQ-0-0 |
|00004f80| 63 6f 6d 70 72 65 73 73 | 65 64 20 64 72 69 76 65 |compress|ed drive|
|00004f90| 73 2e 20 27 75 6e 64 65 | 66 27 20 74 68 69 73 20 |s. 'unde|f' this |
|00004fa0| 74 6f 20 61 76 6f 69 64 | 20 74 68 69 73 20 68 61 |to avoid| this ha|
|00004fb0| 63 6b 20 2a 2f 20 0a 23 | 64 65 66 69 6e 65 20 47 |ck */ .#|define G|
|00004fc0| 55 45 53 53 5f 48 41 43 | 4b 0a 0a 23 69 66 64 65 |UESS_HAC|K..#ifde|
|00004fd0| 66 20 5f 5f 4b 45 52 4e | 45 4c 5f 5f 0a 65 78 74 |f __KERN|EL__.ext|
|00004fe0| 65 72 6e 20 44 62 6c 73 | 62 20 64 62 6c 73 62 5b |ern Dbls|b dblsb[|
|00004ff0| 5d 3b 0a 23 65 6c 73 65 | 0a 65 78 74 65 72 6e 20 |];.#else|.extern |
|00005000| 69 6e 74 20 63 66 61 6b | 74 6f 72 3b 0a 76 6f 69 |int cfak|tor;.voi|
|00005010| 64 20 70 61 6e 69 63 28 | 63 68 61 72 2a 29 3b 0a |d panic(|char*);.|
|00005020| 23 65 6e 64 69 66 20 2f | 2a 5f 5f 4b 45 52 4e 45 |#endif /|*__KERNE|
|00005030| 4c 5f 5f 2a 2f 0a 0a 2f | 2a 20 6d 61 79 62 65 20 |L__*/../|* maybe |
|00005040| 74 68 65 20 76 61 6c 75 | 65 73 20 68 61 76 65 20 |the valu|es have |
|00005050| 74 6f 20 62 65 20 61 64 | 61 70 74 65 64 20 66 6f |to be ad|apted fo|
|00005060| 72 20 6f 70 74 69 6d 61 | 6c 20 63 6f 6d 70 72 65 |r optima|l compre|
|00005070| 73 73 69 6f 6e 2f 73 70 | 65 65 64 20 0a 20 20 20 |ssion/sp|eed . |
|00005080| 72 65 6c 61 74 69 6f 6e | 73 68 69 70 20 2a 2f 0a |relation|ship */.|
|00005090| 69 6e 74 20 63 5f 6d 61 | 78 64 69 66 66 5b 31 32 |int c_ma|xdiff[12|
|000050a0| 5d 3d 7b 20 36 33 2c 20 | 36 33 2c 20 36 33 2c 20 |]={ 63, |63, 63, |
|000050b0| 36 33 2c 33 31 39 2c 33 | 31 39 2c 33 31 39 2c 33 |63,319,3|19,319,3|
|000050c0| 31 39 2c 34 34 31 34 2c | 34 34 31 34 2c 34 34 31 |19,4414,|4414,441|
|000050d0| 34 2c 34 34 31 34 7d 3b | 0a 69 6e 74 20 63 5f 6d |4,4414};|.int c_m|
|000050e0| 61 78 6c 65 6e 5b 31 32 | 5d 20 3d 7b 20 36 34 2c |axlen[12|] ={ 64,|
|000050f0| 31 32 38 2c 32 35 36 2c | 35 31 32 2c 20 36 34 2c |128,256,|512, 64,|
|00005100| 31 32 38 2c 32 35 36 2c | 35 31 32 2c 20 20 36 34 |128,256,|512, 64|
|00005110| 2c 20 31 32 38 2c 20 32 | 35 36 2c 20 35 31 32 7d |, 128, 2|56, 512}|
|00005120| 3b 0a 0a 69 6e 6c 69 6e | 65 20 76 6f 69 64 20 70 |;..inlin|e void p|
|00005130| 75 74 62 69 74 28 75 6e | 73 69 67 6e 65 64 20 63 |utbit(un|signed c|
|00005140| 68 61 72 2a 63 6c 75 73 | 74 65 72 6b 2c 69 6e 74 |har*clus|terk,int|
|00005150| 2a 7a 69 65 6c 70 6f 73 | 2c 69 6e 74 2a 7a 69 65 |*zielpos|,int*zie|
|00005160| 6c 6d 61 73 6b 2c 69 6e | 74 20 62 69 74 29 0a 7b |lmask,in|t bit).{|
|00005170| 0a 20 20 69 66 28 62 69 | 74 29 63 6c 75 73 74 65 |. if(bi|t)cluste|
|00005180| 72 6b 5b 2a 7a 69 65 6c | 70 6f 73 5d 7c 3d 2a 7a |rk[*ziel|pos]|=*z|
|00005190| 69 65 6c 6d 61 73 6b 3b | 0a 20 20 65 6c 73 65 20 |ielmask;|. else |
|000051a0| 63 6c 75 73 74 65 72 6b | 5b 2a 7a 69 65 6c 70 6f |clusterk|[*zielpo|
|000051b0| 73 5d 26 3d 7e 28 2a 7a | 69 65 6c 6d 61 73 6b 29 |s]&=~(*z|ielmask)|
|000051c0| 3b 0a 20 20 28 2a 7a 69 | 65 6c 6d 61 73 6b 29 3c |;. (*zi|elmask)<|
|000051d0| 3c 3d 31 3b 0a 20 20 69 | 66 28 2a 7a 69 65 6c 6d |<=1;. i|f(*zielm|
|000051e0| 61 73 6b 3d 3d 32 35 36 | 29 0a 20 20 7b 20 2a 7a |ask==256|). { *z|
|000051f0| 69 65 6c 6d 61 73 6b 3d | 31 3b 0a 20 20 20 20 2b |ielmask=|1;. +|
|00005200| 2b 28 2a 7a 69 65 6c 70 | 6f 73 29 3b 0a 20 20 7d |+(*zielp|os);. }|
|00005210| 0a 7d 0a 0a 76 6f 69 64 | 20 70 75 74 62 69 74 73 |.}..void| putbits|
|00005220| 28 75 6e 73 69 67 6e 65 | 64 20 63 68 61 72 2a 63 |(unsigne|d char*c|
|00005230| 6c 75 73 74 65 72 6b 2c | 69 6e 74 2a 7a 69 65 6c |lusterk,|int*ziel|
|00005240| 70 6f 73 2c 69 6e 74 2a | 7a 69 65 6c 6d 61 73 6b |pos,int*|zielmask|
|00005250| 2c 69 6e 74 20 62 79 74 | 65 2c 69 6e 74 20 61 6e |,int byt|e,int an|
|00005260| 7a 29 0a 7b 20 69 6e 74 | 20 69 3b 0a 20 20 69 6e |z).{ int| i;. in|
|00005270| 74 20 6d 61 73 6b 3b 0a | 20 20 0a 20 20 6d 61 73 |t mask;.| . mas|
|00005280| 6b 3d 31 3b 0a 20 20 66 | 6f 72 28 69 3d 30 3b 69 |k=1;. f|or(i=0;i|
|00005290| 3c 61 6e 7a 3b 2b 2b 69 | 29 0a 20 20 7b 20 70 75 |<anz;++i|). { pu|
|000052a0| 74 62 69 74 28 63 6c 75 | 73 74 65 72 6b 2c 7a 69 |tbit(clu|sterk,zi|
|000052b0| 65 6c 70 6f 73 2c 7a 69 | 65 6c 6d 61 73 6b 2c 62 |elpos,zi|elmask,b|
|000052c0| 79 74 65 26 6d 61 73 6b | 29 3b 0a 20 20 20 20 6d |yte&mask|);. m|
|000052d0| 61 73 6b 3c 3c 3d 31 3b | 0a 20 20 7d 0a 7d 0a 0a |ask<<=1;|. }.}..|
|000052e0| 76 6f 69 64 20 77 72 69 | 74 65 5f 62 79 74 65 28 |void wri|te_byte(|
|000052f0| 75 6e 73 69 67 6e 65 64 | 20 63 68 61 72 2a 63 6c |unsigned| char*cl|
|00005300| 75 73 74 65 72 6b 2c 69 | 6e 74 2a 7a 69 65 6c 70 |usterk,i|nt*zielp|
|00005310| 6f 73 2c 69 6e 74 2a 7a | 69 65 6c 6d 61 73 6b 2c |os,int*z|ielmask,|
|00005320| 69 6e 74 20 62 79 74 65 | 2c 0a 20 20 20 20 20 20 |int byte|,. |
|00005330| 20 20 20 20 20 20 20 20 | 20 20 69 6e 74 20 6d 65 | | int me|
|00005340| 74 68 6f 64 29 0a 7b 20 | 69 66 28 6d 65 74 68 6f |thod).{ |if(metho|
|00005350| 64 21 3d 4a 4d 5f 30 5f | 30 26 26 6d 65 74 68 6f |d!=JM_0_|0&&metho|
|00005360| 64 21 3d 4a 4d 5f 30 5f | 31 29 0a 20 20 7b 20 69 |d!=JM_0_|1). { i|
|00005370| 66 28 62 79 74 65 3c 31 | 32 38 29 70 75 74 62 69 |f(byte<1|28)putbi|
|00005380| 74 73 28 63 6c 75 73 74 | 65 72 6b 2c 7a 69 65 6c |ts(clust|erk,ziel|
|00005390| 70 6f 73 2c 7a 69 65 6c | 6d 61 73 6b 2c 32 2c 32 |pos,ziel|mask,2,2|
|000053a0| 29 3b 0a 20 20 20 20 65 | 6c 73 65 20 70 75 74 62 |);. e|lse putb|
|000053b0| 69 74 73 28 63 6c 75 73 | 74 65 72 6b 2c 7a 69 65 |its(clus|terk,zie|
|000053c0| 6c 70 6f 73 2c 7a 69 65 | 6c 6d 61 73 6b 2c 31 2c |lpos,zie|lmask,1,|
|000053d0| 32 29 3b 0a 20 20 7d 0a | 20 20 65 6c 73 65 20 2f |2);. }.| else /|
|000053e0| 2a 20 4a 4d 5f 30 5f 30 | 20 2a 2f 0a 20 20 7b 20 |* JM_0_0| */. { |
|000053f0| 69 66 28 62 79 74 65 3c | 31 32 38 29 70 75 74 62 |if(byte<|128)putb|
|00005400| 69 74 28 63 6c 75 73 74 | 65 72 6b 2c 7a 69 65 6c |it(clust|erk,ziel|
|00005410| 70 6f 73 2c 7a 69 65 6c | 6d 61 73 6b 2c 30 29 3b |pos,ziel|mask,0);|
|00005420| 0a 20 20 20 20 65 6c 73 | 65 20 70 75 74 62 69 74 |. els|e putbit|
|00005430| 73 28 63 6c 75 73 74 65 | 72 6b 2c 7a 69 65 6c 70 |s(cluste|rk,zielp|
|00005440| 6f 73 2c 7a 69 65 6c 6d | 61 73 6b 2c 33 2c 32 29 |os,zielm|ask,3,2)|
|00005450| 3b 0a 20 20 7d 0a 20 20 | 70 75 74 62 69 74 73 28 |;. }. |putbits(|
|00005460| 63 6c 75 73 74 65 72 6b | 2c 7a 69 65 6c 70 6f 73 |clusterk|,zielpos|
|00005470| 2c 7a 69 65 6c 6d 61 73 | 6b 2c 62 79 74 65 2c 37 |,zielmas|k,byte,7|
|00005480| 29 3b 0a 7d 0a 0a 76 6f | 69 64 20 77 72 69 74 65 |);.}..vo|id write|
|00005490| 5f 74 65 6d 70 28 75 6e | 73 69 67 6e 65 64 20 63 |_temp(un|signed c|
|000054a0| 68 61 72 2a 63 6c 75 73 | 74 65 72 6b 2c 69 6e 74 |har*clus|terk,int|
|000054b0| 2a 7a 69 65 6c 70 6f 73 | 2c 69 6e 74 2a 7a 69 65 |*zielpos|,int*zie|
|000054c0| 6c 6d 61 73 6b 2c 0a 20 | 20 20 20 20 20 20 20 20 |lmask,. | |
|000054d0| 20 20 20 20 20 20 20 75 | 6e 73 69 67 6e 65 64 20 | u|nsigned |
|000054e0| 63 68 61 72 2a 74 65 6d | 70 73 74 72 2c 69 6e 74 |char*tem|pstr,int|
|000054f0| 20 6c 65 6e 2c 69 6e 74 | 20 64 69 66 66 2c 69 6e | len,int| diff,in|
|00005500| 74 20 6d 65 74 68 6f 64 | 29 0a 7b 20 69 66 28 6c |t method|).{ if(l|
|00005510| 65 6e 3d 3d 31 29 0a 20 | 20 7b 20 77 72 69 74 65 |en==1). | { write|
|00005520| 5f 62 79 74 65 28 63 6c | 75 73 74 65 72 6b 2c 7a |_byte(cl|usterk,z|
|00005530| 69 65 6c 70 6f 73 2c 7a | 69 65 6c 6d 61 73 6b 2c |ielpos,z|ielmask,|
|00005540| 74 65 6d 70 73 74 72 5b | 30 5d 2c 6d 65 74 68 6f |tempstr[|0],metho|
|00005550| 64 29 3b 0a 20 20 20 20 | 72 65 74 75 72 6e 3b 0a |d);. |return;.|
|00005560| 20 20 7d 0a 20 20 69 66 | 28 6c 65 6e 3d 3d 32 26 | }. if|(len==2&|
|00005570| 26 28 6d 65 74 68 6f 64 | 3d 3d 4a 4d 5f 30 5f 30 |&(method|==JM_0_0|
|00005580| 7c 7c 6d 65 74 68 6f 64 | 3d 3d 4a 4d 5f 30 5f 31 |||method|==JM_0_1|
|00005590| 29 29 0a 20 20 7b 20 77 | 72 69 74 65 5f 62 79 74 |)). { w|rite_byt|
|000055a0| 65 28 63 6c 75 73 74 65 | 72 6b 2c 7a 69 65 6c 70 |e(cluste|rk,zielp|
|000055b0| 6f 73 2c 7a 69 65 6c 6d | 61 73 6b 2c 74 65 6d 70 |os,zielm|ask,temp|
|000055c0| 73 74 72 5b 30 5d 2c 6d | 65 74 68 6f 64 29 3b 0a |str[0],m|ethod);.|
|000055d0| 20 20 20 20 77 72 69 74 | 65 5f 62 79 74 65 28 63 | writ|e_byte(c|
|000055e0| 6c 75 73 74 65 72 6b 2c | 7a 69 65 6c 70 6f 73 2c |lusterk,|zielpos,|
|000055f0| 7a 69 65 6c 6d 61 73 6b | 2c 74 65 6d 70 73 74 72 |zielmask|,tempstr|
|00005600| 5b 31 5d 2c 6d 65 74 68 | 6f 64 29 3b 0a 20 20 20 |[1],meth|od);. |
|00005610| 20 72 65 74 75 72 6e 3b | 0a 20 20 7d 0a 20 20 69 | return;|. }. i|
|00005620| 66 28 6d 65 74 68 6f 64 | 21 3d 4a 4d 5f 30 5f 30 |f(method|!=JM_0_0|
|00005630| 26 26 6d 65 74 68 6f 64 | 21 3d 4a 4d 5f 30 5f 31 |&&method|!=JM_0_1|
|00005640| 29 0a 20 20 7b 20 2b 2b | 6c 65 6e 3b 20 2f 2a 20 |). { ++|len; /* |
|00005650| 63 6f 72 72 65 63 74 73 | 20 64 69 66 66 65 72 65 |corrects| differe|
|00005660| 6e 74 20 63 6f 75 6e 74 | 69 6e 67 20 73 63 68 65 |nt count|ing sche|
|00005670| 6d 65 20 2a 2f 0a 20 20 | 20 20 69 66 28 64 69 66 |me */. | if(dif|
|00005680| 66 3c 36 34 29 70 75 74 | 62 69 74 73 28 63 6c 75 |f<64)put|bits(clu|
|00005690| 73 74 65 72 6b 2c 7a 69 | 65 6c 70 6f 73 2c 7a 69 |sterk,zi|elpos,zi|
|000056a0| 65 6c 6d 61 73 6b 2c 30 | 2c 32 29 3b 0a 20 20 20 |elmask,0|,2);. |
|000056b0| 20 65 6c 73 65 20 70 75 | 74 62 69 74 73 28 63 6c | else pu|tbits(cl|
|000056c0| 75 73 74 65 72 6b 2c 7a | 69 65 6c 70 6f 73 2c 7a |usterk,z|ielpos,z|
|000056d0| 69 65 6c 6d 61 73 6b 2c | 33 2c 32 29 3b 0a 20 20 |ielmask,|3,2);. |
|000056e0| 7d 0a 20 20 65 6c 73 65 | 20 2f 2a 20 4a 4d 5f 30 |}. else| /* JM_0|
|000056f0| 5f 30 20 2a 2f 0a 20 20 | 7b 20 70 75 74 62 69 74 |_0 */. |{ putbit|
|00005700| 73 28 63 6c 75 73 74 65 | 72 6b 2c 7a 69 65 6c 70 |s(cluste|rk,zielp|
|00005710| 6f 73 2c 7a 69 65 6c 6d | 61 73 6b 2c 31 2c 32 29 |os,zielm|ask,1,2)|
|00005720| 3b 0a 20 20 20 20 70 75 | 74 62 69 74 28 63 6c 75 |;. pu|tbit(clu|
|00005730| 73 74 65 72 6b 2c 7a 69 | 65 6c 70 6f 73 2c 7a 69 |sterk,zi|elpos,zi|
|00005740| 65 6c 6d 61 73 6b 2c 28 | 64 69 66 66 3c 36 34 29 |elmask,(|diff<64)|
|00005750| 3f 30 3a 31 29 3b 0a 20 | 20 7d 0a 20 20 69 66 28 |?0:1);. | }. if(|
|00005760| 64 69 66 66 3c 36 34 29 | 70 75 74 62 69 74 73 28 |diff<64)|putbits(|
|00005770| 63 6c 75 73 74 65 72 6b | 2c 7a 69 65 6c 70 6f 73 |clusterk|,zielpos|
|00005780| 2c 7a 69 65 6c 6d 61 73 | 6b 2c 64 69 66 66 2c 36 |,zielmas|k,diff,6|
|00005790| 29 3b 0a 20 20 65 6c 73 | 65 20 0a 20 20 7b 20 69 |);. els|e . { i|
|000057a0| 66 28 64 69 66 66 3c 33 | 32 30 29 0a 20 20 20 20 |f(diff<3|20). |
|000057b0| 7b 20 70 75 74 62 69 74 | 28 63 6c 75 73 74 65 72 |{ putbit|(cluster|
|000057c0| 6b 2c 7a 69 65 6c 70 6f | 73 2c 7a 69 65 6c 6d 61 |k,zielpo|s,zielma|
|000057d0| 73 6b 2c 30 29 3b 0a 20 | 20 20 20 20 20 70 75 74 |sk,0);. | put|
|000057e0| 62 69 74 73 28 63 6c 75 | 73 74 65 72 6b 2c 7a 69 |bits(clu|sterk,zi|
|000057f0| 65 6c 70 6f 73 2c 7a 69 | 65 6c 6d 61 73 6b 2c 64 |elpos,zi|elmask,d|
|00005800| 69 66 66 2d 36 34 2c 38 | 29 3b 0a 20 20 20 20 7d |iff-64,8|);. }|
|00005810| 0a 20 20 20 20 65 6c 73 | 65 0a 20 20 20 20 7b 20 |. els|e. { |
|00005820| 70 75 74 62 69 74 28 63 | 6c 75 73 74 65 72 6b 2c |putbit(c|lusterk,|
|00005830| 7a 69 65 6c 70 6f 73 2c | 7a 69 65 6c 6d 61 73 6b |zielpos,|zielmask|
|00005840| 2c 31 29 3b 0a 20 20 20 | 20 20 20 70 75 74 62 69 |,1);. | putbi|
|00005850| 74 73 28 63 6c 75 73 74 | 65 72 6b 2c 7a 69 65 6c |ts(clust|erk,ziel|
|00005860| 70 6f 73 2c 7a 69 65 6c | 6d 61 73 6b 2c 64 69 66 |pos,ziel|mask,dif|
|00005870| 66 2d 33 32 30 2c 31 32 | 29 3b 0a 20 20 20 20 7d |f-320,12|);. }|
|00005880| 0a 20 20 7d 0a 20 20 2f | 2a 20 6f 6b 61 79 2c 20 |. }. /|* okay, |
|00005890| 6e 6f 77 20 65 6e 63 6f | 64 65 20 6c 65 6e 20 2a |now enco|de len *|
|000058a0| 2f 0a 20 20 69 66 28 6c | 65 6e 3d 3d 33 29 0a 20 |/. if(l|en==3). |
|000058b0| 20 7b 20 70 75 74 62 69 | 74 28 63 6c 75 73 74 65 | { putbi|t(cluste|
|000058c0| 72 6b 2c 7a 69 65 6c 70 | 6f 73 2c 7a 69 65 6c 6d |rk,zielp|os,zielm|
|000058d0| 61 73 6b 2c 31 29 3b 0a | 20 20 20 20 72 65 74 75 |ask,1);.| retu|
|000058e0| 72 6e 3b 0a 20 20 7d 0a | 20 20 70 75 74 62 69 74 |rn;. }.| putbit|
|000058f0| 28 63 6c 75 73 74 65 72 | 6b 2c 7a 69 65 6c 70 6f |(cluster|k,zielpo|
|00005900| 73 2c 7a 69 65 6c 6d 61 | 73 6b 2c 30 29 3b 0a 20 |s,zielma|sk,0);. |
|00005910| 20 69 66 28 6c 65 6e 3c | 36 29 0a 20 20 7b 20 70 | if(len<|6). { p|
|00005920| 75 74 62 69 74 28 63 6c | 75 73 74 65 72 6b 2c 7a |utbit(cl|usterk,z|
|00005930| 69 65 6c 70 6f 73 2c 7a | 69 65 6c 6d 61 73 6b 2c |ielpos,z|ielmask,|
|00005940| 31 29 3b 0a 20 20 20 20 | 70 75 74 62 69 74 28 63 |1);. |putbit(c|
|00005950| 6c 75 73 74 65 72 6b 2c | 7a 69 65 6c 70 6f 73 2c |lusterk,|zielpos,|
|00005960| 7a 69 65 6c 6d 61 73 6b | 2c 6c 65 6e 2d 34 29 3b |zielmask|,len-4);|
|00005970| 0a 20 20 20 20 72 65 74 | 75 72 6e 3b 0a 20 20 7d |. ret|urn;. }|
|00005980| 0a 20 20 70 75 74 62 69 | 74 28 63 6c 75 73 74 65 |. putbi|t(cluste|
|00005990| 72 6b 2c 7a 69 65 6c 70 | 6f 73 2c 7a 69 65 6c 6d |rk,zielp|os,zielm|
|000059a0| 61 73 6b 2c 30 29 3b 0a | 20 20 69 66 28 6c 65 6e |ask,0);.| if(len|
|000059b0| 3c 31 30 29 0a 20 20 7b | 20 70 75 74 62 69 74 28 |<10). {| putbit(|
|000059c0| 63 6c 75 73 74 65 72 6b | 2c 7a 69 65 6c 70 6f 73 |clusterk|,zielpos|
|000059d0| 2c 7a 69 65 6c 6d 61 73 | 6b 2c 31 29 3b 0a 20 20 |,zielmas|k,1);. |
|000059e0| 20 20 70 75 74 62 69 74 | 73 28 63 6c 75 73 74 65 | putbit|s(cluste|
|000059f0| 72 6b 2c 7a 69 65 6c 70 | 6f 73 2c 7a 69 65 6c 6d |rk,zielp|os,zielm|
|00005a00| 61 73 6b 2c 6c 65 6e 2d | 36 2c 32 29 3b 0a 20 20 |ask,len-|6,2);. |
|00005a10| 20 20 72 65 74 75 72 6e | 3b 0a 20 20 7d 0a 20 20 | return|;. }. |
|00005a20| 70 75 74 62 69 74 28 63 | 6c 75 73 74 65 72 6b 2c |putbit(c|lusterk,|
|00005a30| 7a 69 65 6c 70 6f 73 2c | 7a 69 65 6c 6d 61 73 6b |zielpos,|zielmask|
|00005a40| 2c 30 29 3b 0a 20 20 69 | 66 28 6c 65 6e 3c 31 38 |,0);. i|f(len<18|
|00005a50| 29 0a 20 20 7b 20 70 75 | 74 62 69 74 28 63 6c 75 |). { pu|tbit(clu|
|00005a60| 73 74 65 72 6b 2c 7a 69 | 65 6c 70 6f 73 2c 7a 69 |sterk,zi|elpos,zi|
|00005a70| 65 6c 6d 61 73 6b 2c 31 | 29 3b 0a 20 20 20 20 70 |elmask,1|);. p|
|00005a80| 75 74 62 69 74 73 28 63 | 6c 75 73 74 65 72 6b 2c |utbits(c|lusterk,|
|00005a90| 7a 69 65 6c 70 6f 73 2c | 7a 69 65 6c 6d 61 73 6b |zielpos,|zielmask|
|00005aa0| 2c 6c 65 6e 2d 31 30 2c | 33 29 3b 0a 20 20 20 20 |,len-10,|3);. |
|00005ab0| 72 65 74 75 72 6e 3b 0a | 20 20 7d 0a 20 20 70 75 |return;.| }. pu|
|00005ac0| 74 62 69 74 28 63 6c 75 | 73 74 65 72 6b 2c 7a 69 |tbit(clu|sterk,zi|
|00005ad0| 65 6c 70 6f 73 2c 7a 69 | 65 6c 6d 61 73 6b 2c 30 |elpos,zi|elmask,0|
|00005ae0| 29 3b 0a 20 20 69 66 28 | 6c 65 6e 3c 33 34 29 0a |);. if(|len<34).|
|00005af0| 20 20 7b 20 70 75 74 62 | 69 74 28 63 6c 75 73 74 | { putb|it(clust|
|00005b00| 65 72 6b 2c 7a 69 65 6c | 70 6f 73 2c 7a 69 65 6c |erk,ziel|pos,ziel|
|00005b10| 6d 61 73 6b 2c 31 29 3b | 0a 20 20 20 20 70 75 74 |mask,1);|. put|
|00005b20| 62 69 74 73 28 63 6c 75 | 73 74 65 72 6b 2c 7a 69 |bits(clu|sterk,zi|
|00005b30| 65 6c 70 6f 73 2c 7a 69 | 65 6c 6d 61 73 6b 2c 6c |elpos,zi|elmask,l|
|00005b40| 65 6e 2d 31 38 2c 34 29 | 3b 0a 20 20 20 20 72 65 |en-18,4)|;. re|
|00005b50| 74 75 72 6e 3b 0a 20 20 | 7d 0a 20 20 70 75 74 62 |turn;. |}. putb|
|00005b60| 69 74 28 63 6c 75 73 74 | 65 72 6b 2c 7a 69 65 6c |it(clust|erk,ziel|
|00005b70| 70 6f 73 2c 7a 69 65 6c | 6d 61 73 6b 2c 30 29 3b |pos,ziel|mask,0);|
|00005b80| 0a 20 20 69 66 28 6c 65 | 6e 3c 36 36 29 0a 20 20 |. if(le|n<66). |
|00005b90| 7b 20 70 75 74 62 69 74 | 28 63 6c 75 73 74 65 72 |{ putbit|(cluster|
|00005ba0| 6b 2c 7a 69 65 6c 70 6f | 73 2c 7a 69 65 6c 6d 61 |k,zielpo|s,zielma|
|00005bb0| 73 6b 2c 31 29 3b 0a 20 | 20 20 20 70 75 74 62 69 |sk,1);. | putbi|
|00005bc0| 74 73 28 63 6c 75 73 74 | 65 72 6b 2c 7a 69 65 6c |ts(clust|erk,ziel|
|00005bd0| 70 6f 73 2c 7a 69 65 6c | 6d 61 73 6b 2c 6c 65 6e |pos,ziel|mask,len|
|00005be0| 2d 33 34 2c 35 29 3b 0a | 20 20 20 20 72 65 74 75 |-34,5);.| retu|
|00005bf0| 72 6e 3b 0a 20 20 7d 0a | 20 20 70 75 74 62 69 74 |rn;. }.| putbit|
|00005c00| 28 63 6c 75 73 74 65 72 | 6b 2c 7a 69 65 6c 70 6f |(cluster|k,zielpo|
|00005c10| 73 2c 7a 69 65 6c 6d 61 | 73 6b 2c 30 29 3b 0a 20 |s,zielma|sk,0);. |
|00005c20| 20 69 66 28 6c 65 6e 3c | 31 33 30 29 0a 20 20 7b | if(len<|130). {|
|00005c30| 20 70 75 74 62 69 74 28 | 63 6c 75 73 74 65 72 6b | putbit(|clusterk|
|00005c40| 2c 7a 69 65 6c 70 6f 73 | 2c 7a 69 65 6c 6d 61 73 |,zielpos|,zielmas|
|00005c50| 6b 2c 31 29 3b 0a 20 20 | 20 20 70 75 74 62 69 74 |k,1);. | putbit|
|00005c60| 73 28 63 6c 75 73 74 65 | 72 6b 2c 7a 69 65 6c 70 |s(cluste|rk,zielp|
|00005c70| 6f 73 2c 7a 69 65 6c 6d | 61 73 6b 2c 6c 65 6e 2d |os,zielm|ask,len-|
|00005c80| 36 36 2c 36 29 3b 0a 20 | 20 20 20 72 65 74 75 72 |66,6);. | retur|
|00005c90| 6e 3b 0a 20 20 7d 0a 20 | 20 70 75 74 62 69 74 28 |n;. }. | putbit(|
|00005ca0| 63 6c 75 73 74 65 72 6b | 2c 7a 69 65 6c 70 6f 73 |clusterk|,zielpos|
|00005cb0| 2c 7a 69 65 6c 6d 61 73 | 6b 2c 30 29 3b 0a 20 20 |,zielmas|k,0);. |
|00005cc0| 69 66 28 6c 65 6e 3c 32 | 35 38 29 0a 20 20 7b 20 |if(len<2|58). { |
|00005cd0| 70 75 74 62 69 74 28 63 | 6c 75 73 74 65 72 6b 2c |putbit(c|lusterk,|
|00005ce0| 7a 69 65 6c 70 6f 73 2c | 7a 69 65 6c 6d 61 73 6b |zielpos,|zielmask|
|00005cf0| 2c 31 29 3b 0a 20 20 20 | 20 70 75 74 62 69 74 73 |,1);. | putbits|
|00005d00| 28 63 6c 75 73 74 65 72 | 6b 2c 7a 69 65 6c 70 6f |(cluster|k,zielpo|
|00005d10| 73 2c 7a 69 65 6c 6d 61 | 73 6b 2c 6c 65 6e 2d 31 |s,zielma|sk,len-1|
|00005d20| 33 30 2c 37 29 3b 0a 20 | 20 20 20 72 65 74 75 72 |30,7);. | retur|
|00005d30| 6e 3b 0a 20 20 7d 0a 20 | 20 70 75 74 62 69 74 28 |n;. }. | putbit(|
|00005d40| 63 6c 75 73 74 65 72 6b | 2c 7a 69 65 6c 70 6f 73 |clusterk|,zielpos|
|00005d50| 2c 7a 69 65 6c 6d 61 73 | 6b 2c 30 29 3b 0a 20 20 |,zielmas|k,0);. |
|00005d60| 70 75 74 62 69 74 28 63 | 6c 75 73 74 65 72 6b 2c |putbit(c|lusterk,|
|00005d70| 7a 69 65 6c 70 6f 73 2c | 7a 69 65 6c 6d 61 73 6b |zielpos,|zielmask|
|00005d80| 2c 31 29 3b 0a 20 20 70 | 75 74 62 69 74 73 28 63 |,1);. p|utbits(c|
|00005d90| 6c 75 73 74 65 72 6b 2c | 7a 69 65 6c 70 6f 73 2c |lusterk,|zielpos,|
|00005da0| 7a 69 65 6c 6d 61 73 6b | 2c 6c 65 6e 2d 32 35 38 |zielmask|,len-258|
|00005db0| 2c 38 29 3b 0a 7d 0a 0a | 76 6f 69 64 20 77 72 69 |,8);.}..|void wri|
|00005dc0| 74 65 5f 6d 61 72 6b 65 | 72 28 75 6e 73 69 67 6e |te_marke|r(unsign|
|00005dd0| 65 64 20 63 68 61 72 2a | 63 6c 75 73 74 65 72 6b |ed char*|clusterk|
|00005de0| 2c 69 6e 74 2a 7a 69 65 | 6c 70 6f 73 2c 69 6e 74 |,int*zie|lpos,int|
|00005df0| 2a 7a 69 65 6c 6d 61 73 | 6b 2c 69 6e 74 20 6d 65 |*zielmas|k,int me|
|00005e00| 74 68 6f 64 29 0a 7b 20 | 69 66 28 6d 65 74 68 6f |thod).{ |if(metho|
|00005e10| 64 3d 3d 4a 4d 5f 30 5f | 30 7c 7c 6d 65 74 68 6f |d==JM_0_|0||metho|
|00005e20| 64 3d 3d 4a 4d 5f 30 5f | 31 29 70 75 74 62 69 74 |d==JM_0_|1)putbit|
|00005e30| 73 28 63 6c 75 73 74 65 | 72 6b 2c 7a 69 65 6c 70 |s(cluste|rk,zielp|
|00005e40| 6f 73 2c 7a 69 65 6c 6d | 61 73 6b 2c 31 33 2c 34 |os,zielm|ask,13,4|
|00005e50| 29 3b 0a 20 20 65 6c 73 | 65 20 2f 2a 20 44 53 5f |);. els|e /* DS_|
|00005e60| 30 5f 78 20 2a 2f 20 70 | 75 74 62 69 74 73 28 63 |0_x */ p|utbits(c|
|00005e70| 6c 75 73 74 65 72 6b 2c | 7a 69 65 6c 70 6f 73 2c |lusterk,|zielpos,|
|00005e80| 7a 69 65 6c 6d 61 73 6b | 2c 37 2c 33 29 3b 0a 20 |zielmask|,7,3);. |
|00005e90| 20 70 75 74 62 69 74 73 | 28 63 6c 75 73 74 65 72 | putbits|(cluster|
|00005ea0| 6b 2c 7a 69 65 6c 70 6f | 73 2c 7a 69 65 6c 6d 61 |k,zielpo|s,zielma|
|00005eb0| 73 6b 2c 30 78 46 46 46 | 2c 31 32 29 3b 20 0a 7d |sk,0xFFF|,12); .}|
|00005ec0| 0a 0a 69 6e 6c 69 6e 65 | 20 69 6e 74 20 73 75 63 |..inline| int suc|
|00005ed0| 68 5f 72 62 5f 62 79 74 | 65 28 75 6e 73 69 67 6e |h_rb_byt|e(unsign|
|00005ee0| 65 64 20 63 68 61 72 2a | 63 6c 75 73 74 65 72 64 |ed char*|clusterd|
|00005ef0| 2c 20 69 6e 74 20 62 79 | 74 65 2c 20 69 6e 74 20 |, int by|te, int |
|00005f00| 61 62 29 0a 7b 20 77 68 | 69 6c 65 28 61 62 3e 3d |ab).{ wh|ile(ab>=|
|00005f10| 30 29 0a 20 20 7b 20 69 | 66 28 62 79 74 65 3d 3d |0). { i|f(byte==|
|00005f20| 63 6c 75 73 74 65 72 64 | 5b 61 62 5d 29 72 65 74 |clusterd|[ab])ret|
|00005f30| 75 72 6e 20 61 62 3b 0a | 20 20 20 20 2d 2d 61 62 |urn ab;.| --ab|
|00005f40| 3b 0a 20 20 7d 0a 20 20 | 72 65 74 75 72 6e 20 2d |;. }. |return -|
|00005f50| 31 3b 0a 7d 0a 0a 69 6e | 6c 69 6e 65 20 69 6e 74 |1;.}..in|line int|
|00005f60| 20 6d 79 73 74 72 6e 63 | 6d 70 28 75 6e 73 69 67 | mystrnc|mp(unsig|
|00005f70| 6e 65 64 20 63 68 61 72 | 2a 61 2c 75 6e 73 69 67 |ned char|*a,unsig|
|00005f80| 6e 65 64 20 63 68 61 72 | 2a 62 2c 69 6e 74 20 6c |ned char|*b,int l|
|00005f90| 65 6e 29 0a 7b 20 2d 2d | 6c 65 6e 3b 0a 20 20 77 |en).{ --|len;. w|
|00005fa0| 68 69 6c 65 28 6c 65 6e | 3e 3d 30 29 0a 20 20 7b |hile(len|>=0). {|
|00005fb0| 20 69 66 28 61 5b 6c 65 | 6e 5d 21 3d 62 5b 6c 65 | if(a[le|n]!=b[le|
|00005fc0| 6e 5d 29 72 65 74 75 72 | 6e 20 31 3b 0a 20 20 20 |n])retur|n 1;. |
|00005fd0| 20 2d 2d 6c 65 6e 3b 0a | 20 20 7d 0a 20 20 72 65 | --len;.| }. re|
|00005fe0| 74 75 72 6e 20 30 3b 0a | 7d 0a 0a 69 6e 6c 69 6e |turn 0;.|}..inlin|
|00005ff0| 65 20 69 6e 74 20 73 75 | 63 68 5f 72 62 5f 73 74 |e int su|ch_rb_st|
|00006000| 72 69 6e 67 28 75 6e 73 | 69 67 6e 65 64 20 63 68 |ring(uns|igned ch|
|00006010| 61 72 2a 63 6c 75 73 74 | 65 72 64 2c 75 6e 73 69 |ar*clust|erd,unsi|
|00006020| 67 6e 65 64 20 63 68 61 | 72 2a 74 65 6d 70 73 74 |gned cha|r*tempst|
|00006030| 72 2c 69 6e 74 20 61 62 | 2c 0a 20 20 20 20 20 20 |r,int ab|,. |
|00006040| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 69 6e 74 | | int|
|00006050| 20 6c 65 6e 29 0a 7b 20 | 77 68 69 6c 65 28 61 62 | len).{ |while(ab|
|00006060| 3e 3d 30 29 0a 20 20 7b | 20 69 66 28 6d 79 73 74 |>=0). {| if(myst|
|00006070| 72 6e 63 6d 70 28 74 65 | 6d 70 73 74 72 2c 26 28 |rncmp(te|mpstr,&(|
|00006080| 63 6c 75 73 74 65 72 64 | 5b 61 62 5d 29 2c 6c 65 |clusterd|[ab]),le|
|00006090| 6e 29 3d 3d 30 29 72 65 | 74 75 72 6e 20 61 62 3b |n)==0)re|turn ab;|
|000060a0| 0a 20 20 20 20 2d 2d 61 | 62 3b 0a 20 20 7d 0a 20 |. --a|b;. }. |
|000060b0| 20 72 65 74 75 72 6e 20 | 2d 31 3b 0a 7d 20 20 20 | return |-1;.} |
|000060c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000060d0| 0a 0a 2f 2a 20 63 6f 6d | 70 72 65 73 73 65 73 20 |../* com|presses |
|000060e0| 61 20 63 6c 75 73 74 65 | 72 20 0a 20 20 20 67 65 |a cluste|r . ge|
|000060f0| 74 73 20 75 6e 63 6f 6d | 70 72 65 73 73 65 64 20 |ts uncom|pressed |
|00006100| 73 69 7a 65 20 28 6e 75 | 6d 62 65 72 20 6f 66 20 |size (nu|mber of |
|00006110| 75 73 65 64 20 73 65 63 | 74 6f 72 73 29 0a 20 20 |used sec|tors). |
|00006120| 20 72 65 74 75 72 6e 73 | 20 63 6f 6d 70 72 65 73 | returns| compres|
|00006130| 73 65 64 20 73 69 7a 65 | 20 28 69 6e 20 6e 75 6d |sed size| (in num|
|00006140| 62 65 72 20 6f 66 20 75 | 73 65 64 20 73 65 63 74 |ber of u|sed sect|
|00006150| 6f 72 73 29 20 6f 72 20 | 2d 31 20 69 66 20 66 61 |ors) or |-1 if fa|
|00006160| 69 6c 65 64 0a 2a 2f 0a | 69 6e 74 20 63 6f 6d 70 |iled.*/.|int comp|
|00006170| 72 65 73 73 28 75 6e 73 | 69 67 6e 65 64 20 63 68 |ress(uns|igned ch|
|00006180| 61 72 2a 20 63 6c 75 73 | 74 65 72 6b 2c 20 75 6e |ar* clus|terk, un|
|00006190| 73 69 67 6e 65 64 20 63 | 68 61 72 2a 20 63 6c 75 |signed c|har* clu|
|000061a0| 73 74 65 72 64 2c 20 69 | 6e 74 20 73 69 7a 65 2c |sterd, i|nt size,|
|000061b0| 0a 20 20 20 20 20 20 20 | 20 20 20 20 20 20 69 6e |. | in|
|000061c0| 74 20 6d 65 74 68 6f 64 | 2c 69 6e 74 20 63 76 66 |t method|,int cvf|
|000061d0| 6e 72 29 0a 7b 20 0a 0a | 23 69 66 64 65 66 20 44 |nr).{ ..|#ifdef D|
|000061e0| 42 4c 5f 43 4f 4d 50 52 | 45 53 53 49 4f 4e 0a 0a |BL_COMPR|ESSION..|
|000061f0| 20 20 69 6e 74 20 69 3b | 0a 20 20 69 6e 74 20 6a | int i;|. int j|
|00006200| 3b 0a 20 20 69 6e 74 20 | 7a 69 65 6c 70 6f 73 3b |;. int |zielpos;|
|00006210| 0a 20 20 69 6e 74 20 7a | 69 65 6c 6d 61 73 6b 3b |. int z|ielmask;|
|00006220| 0a 20 20 69 6e 74 20 70 | 6f 73 3b 0a 20 20 69 6e |. int p|os;. in|
|00006230| 74 20 6c 65 6e 74 65 6d | 70 3b 0a 20 20 69 6e 74 |t lentem|p;. int|
|00006240| 20 6d 61 78 7a 69 65 6c | 70 6f 73 3b 0a 20 20 69 | maxziel|pos;. i|
|00006250| 6e 74 20 62 79 74 65 3b | 0a 20 20 69 6e 74 20 72 |nt byte;|. int r|
|00006260| 62 5f 70 6f 73 3d 30 3b | 20 2f 2a 20 61 76 6f 69 |b_pos=0;| /* avoi|
|00006270| 64 73 20 77 61 72 6e 69 | 6e 67 20 2a 2f 0a 20 20 |ds warni|ng */. |
|00006280| 69 6e 74 20 72 62 5f 62 | 65 67 3d 30 3b 20 2f 2a |int rb_b|eg=0; /*|
|00006290| 20 61 76 6f 69 64 73 20 | 77 61 72 6e 69 6e 67 20 | avoids |warning |
|000062a0| 2a 2f 0a 20 20 69 6e 74 | 20 6c 61 73 74 5f 72 62 |*/. int| last_rb|
|000062b0| 5f 70 6f 73 3b 0a 23 69 | 66 64 65 66 20 5f 5f 4b |_pos;.#i|fdef __K|
|000062c0| 45 52 4e 45 4c 5f 5f 0a | 20 20 69 6e 74 20 6d 61 |ERNEL__.| int ma|
|000062d0| 78 64 69 66 66 3d 63 5f | 6d 61 78 64 69 66 66 5b |xdiff=c_|maxdiff[|
|000062e0| 64 62 6c 73 62 5b 63 76 | 66 6e 72 5d 2e 73 5f 63 |dblsb[cv|fnr].s_c|
|000062f0| 66 61 6b 74 6f 72 5d 3b | 0a 20 20 69 6e 74 20 6d |faktor];|. int m|
|00006300| 61 78 6c 65 6e 3d 63 5f | 6d 61 78 6c 65 6e 5b 64 |axlen=c_|maxlen[d|
|00006310| 62 6c 73 62 5b 63 76 66 | 6e 72 5d 2e 73 5f 63 66 |blsb[cvf|nr].s_cf|
|00006320| 61 6b 74 6f 72 5d 3b 0a | 23 65 6c 73 65 0a 20 20 |aktor];.|#else. |
|00006330| 69 6e 74 20 6d 61 78 64 | 69 66 66 3d 63 5f 6d 61 |int maxd|iff=c_ma|
|00006340| 78 64 69 66 66 5b 63 66 | 61 6b 74 6f 72 5d 3b 0a |xdiff[cf|aktor];.|
|00006350| 20 20 69 6e 74 20 6d 61 | 78 6c 65 6e 3d 63 5f 6d | int ma|xlen=c_m|
|00006360| 61 78 6c 65 6e 5b 63 66 | 61 6b 74 6f 72 5d 3b 0a |axlen[cf|aktor];.|
|00006370| 23 65 6e 64 69 66 20 2f | 2a 5f 5f 4b 45 52 4e 45 |#endif /|*__KERNE|
|00006380| 4c 5f 5f 2a 2f 0a 0a 20 | 20 73 77 69 74 63 68 28 |L__*/.. | switch(|
|00006390| 6d 65 74 68 6f 64 29 0a | 20 20 7b 20 63 61 73 65 |method).| { case|
|000063a0| 20 44 53 5f 30 5f 30 3a | 0a 20 20 20 20 63 61 73 | DS_0_0:|. cas|
|000063b0| 65 20 44 53 5f 30 5f 31 | 3a 0a 20 20 20 20 63 61 |e DS_0_1|:. ca|
|000063c0| 73 65 20 44 53 5f 30 5f | 32 3a 20 2f 2a 20 68 61 |se DS_0_|2: /* ha|
|000063d0| 6e 64 6c 65 64 20 74 6f | 67 65 74 68 65 72 20 77 |ndled to|gether w|
|000063e0| 69 74 68 20 4a 4d 5f 30 | 5f 30 20 62 65 63 61 75 |ith JM_0|_0 becau|
|000063f0| 73 65 20 73 69 6d 69 6c | 61 72 20 2a 2f 0a 20 20 |se simil|ar */. |
+--------+-------------------------+-------------------------+--------+--------+
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