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This file was processed as: DOS BACKUP file
(archive/dosBackupFile).
You can browse this item here: BTVARLEN.C
| Confidence | Program | Detection | Match Type | Support
|
|---|
| 100%
| dexvert
| DOS BACKUP file (archive/dosBackupFile)
| magic
| Supported |
| 66%
| dexvert
| Compact Compressed (Unix) (archive/compact)
| ext
| Supported |
| 100%
| file
| DOS 2.0-3.2 backed up file \CBTREE\LIBRARY\BTVARLEN.C
| default
| |
| 99%
| file
| data
| default
| |
| 51%
| TrID
| DOS 2.0-3.2 backup
| default
| |
| 48%
| TrID
| MP3 audio
| default (weak)
|
|
hex view+--------+-------------------------+-------------------------+--------+--------+
|00000000| ff 01 00 00 00 5c 43 42 | 54 52 45 45 5c 4c 49 42 |.....\CB|TREE\LIB|
|00000010| 52 41 52 59 5c 42 54 56 | 41 52 4c 45 4e 2e 43 00 |RARY\BTV|ARLEN.C.|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000050| 00 00 00 1b 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000060| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000070| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000080| 2f 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |/*******|********|
|00000090| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000000a0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000000b0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000000c0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 0d 0a 20 2a 0d 0a 20 |********|*.. *.. |
|000000d0| 2a 20 20 20 20 62 74 76 | 61 72 6c 65 6e 2e 63 20 |* btv|arlen.c |
|000000e0| 20 2d 2d 20 20 76 61 72 | 69 61 62 6c 65 20 6c 65 | -- var|iable le|
|000000f0| 6e 67 74 68 20 72 65 63 | 6f 72 64 20 73 75 70 70 |ngth rec|ord supp|
|00000100| 6f 72 74 20 72 6f 75 74 | 69 6e 65 73 0d 0a 20 2a |ort rout|ines.. *|
|00000110| 0d 0a 20 2a 2f 0d 0a 0d | 0a 23 69 6e 63 6c 75 64 |.. */...|.#includ|
|00000120| 65 20 22 63 62 74 72 65 | 65 2e 68 22 0d 0a 0d 0a |e "cbtre|e.h"....|
|00000130| 23 64 65 66 69 6e 65 20 | 41 56 4c 5f 42 49 54 20 |#define |AVL_BIT |
|00000140| 20 20 30 78 30 30 30 31 | 0d 0a 0d 0a 23 64 65 66 | 0x0001|....#def|
|00000150| 69 6e 65 20 55 53 45 5f | 42 4c 4f 43 4b 20 73 74 |ine USE_|BLOCK st|
|00000160| 72 75 63 74 20 5f 75 73 | 65 5f 62 6c 6f 63 6b 0d |ruct _us|e_block.|
|00000170| 0a 55 53 45 5f 42 4c 4f | 43 4b 0d 0a 7b 0d 0a 20 |.USE_BLO|CK..{.. |
|00000180| 20 20 75 77 6f 72 64 20 | 75 62 5f 73 69 7a 65 3b | uword |ub_size;|
|00000190| 20 20 20 20 2f 2a 20 74 | 6f 74 61 6c 20 73 69 7a | /* t|otal siz|
|000001a0| 65 20 6f 66 20 75 73 65 | 20 62 6c 6f 63 6b 20 2a |e of use| block *|
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|000001c0| 6c 61 63 65 3b 20 20 20 | 2f 2a 20 77 68 65 72 65 |lace; |/* where|
|000001d0| 20 74 68 69 73 20 75 73 | 65 20 62 6c 6f 63 6b 20 | this us|e block |
|000001e0| 69 73 20 2a 2f 0d 0a 7d | 3b 0d 0a 23 64 65 66 69 |is */..}|;..#defi|
|000001f0| 6e 65 20 53 5a 5f 55 42 | 20 20 73 69 7a 65 6f 66 |ne SZ_UB| sizeof|
|00000200| 28 55 53 45 5f 42 4c 4f | 43 4b 29 0d 0a 0d 0a 6c |(USE_BLO|CK)....l|
|00000210| 6f 6e 67 20 62 74 67 69 | 76 76 61 72 28 66 64 2c |ong btgi|vvar(fd,|
|00000220| 20 72 65 63 73 7a 29 20 | 20 2f 2a 20 72 65 74 75 | recsz) | /* retu|
|00000230| 72 6e 20 62 79 74 65 20 | 6f 66 66 73 65 74 20 74 |rn byte |offset t|
|00000240| 6f 20 61 20 6e 65 77 20 | 72 65 63 6f 72 64 20 2a |o a new |record *|
|00000250| 2f 0d 0a 69 6e 74 20 20 | 66 64 3b 20 20 20 20 20 |/..int |fd; |
|00000260| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 2f 2a | | /*|
|00000270| 20 64 61 74 61 20 66 69 | 6c 65 20 64 65 73 63 72 | data fi|le descr|
|00000280| 69 70 74 6f 72 20 2a 2f | 0d 0a 75 77 6f 72 64 20 |iptor */|..uword |
|00000290| 72 65 63 73 7a 3b 20 20 | 20 20 20 20 20 20 20 20 |recsz; | |
|000002a0| 20 20 20 20 20 2f 2a 20 | 64 65 73 69 72 65 64 20 | /* |desired |
|000002b0| 23 20 62 79 74 65 73 20 | 69 6e 20 72 65 63 6f 72 |# bytes |in recor|
|000002c0| 64 20 2a 2f 0d 0a 7b 0d | 0a 20 20 20 65 78 74 65 |d */..{.|. exte|
|000002d0| 72 6e 20 76 6f 69 64 20 | 72 65 61 64 5f 75 62 28 |rn void |read_ub(|
|000002e0| 29 3b 0d 0a 20 20 20 65 | 78 74 65 72 6e 20 76 6f |);.. e|xtern vo|
|000002f0| 69 64 20 77 72 69 74 65 | 5f 75 62 28 29 3b 0d 0a |id write|_ub();..|
|00000300| 20 20 20 65 78 74 65 72 | 6e 20 76 6f 69 64 20 77 | exter|n void w|
|00000310| 72 69 74 7a 65 72 6f 73 | 28 29 3b 0d 0a 20 20 20 |ritzeros|();.. |
|00000320| 42 54 42 4c 4b 48 44 52 | 20 68 64 72 70 74 72 73 |BTBLKHDR| hdrptrs|
|00000330| 3b 20 20 20 20 20 20 20 | 2f 2a 20 66 69 6c 65 20 |; |/* file |
|00000340| 68 65 61 64 65 72 20 70 | 6f 69 6e 74 65 72 73 3a |header p|ointers:|
|00000350| 20 66 72 65 65 6c 73 74 | 20 26 20 65 6f 66 20 2a | freelst| & eof *|
|00000360| 2f 0d 0a 20 20 20 55 53 | 45 5f 42 4c 4f 43 4b 20 |/.. US|E_BLOCK |
|00000370| 68 64 72 5f 62 6c 6b 3b | 20 20 20 20 20 20 2f 2a |hdr_blk;| /*|
|00000380| 20 27 63 75 72 72 65 6e | 74 27 20 75 73 65 20 62 | 'curren|t' use b|
|00000390| 6c 6f 63 6b 20 2a 2f 0d | 0a 20 20 20 55 53 45 5f |lock */.|. USE_|
|000003a0| 42 4c 4f 43 4b 20 70 72 | 76 5f 62 6c 6b 3b 20 20 |BLOCK pr|v_blk; |
|000003b0| 20 20 20 20 2f 2a 20 70 | 72 65 76 69 6f 75 73 20 | /* p|revious |
|000003c0| 75 73 65 20 62 6c 6f 63 | 6b 20 2a 2f 0d 0a 20 20 |use bloc|k */.. |
|000003d0| 20 75 77 6f 72 64 20 6e | 6f 72 6d 5f 73 69 7a 65 | uword n|orm_size|
|000003e0| 3b 20 20 20 20 20 20 20 | 20 2f 2a 20 6e 6f 72 6d |; | /* norm|
|000003f0| 61 6c 69 7a 65 64 20 72 | 65 63 6f 72 64 20 73 69 |alized r|ecord si|
|00000400| 7a 65 20 2a 2f 0d 0a 20 | 20 20 72 65 67 69 73 74 |ze */.. | regist|
|00000410| 65 72 20 6c 6f 6e 67 20 | 62 6c 6b 5f 70 3b 20 20 |er long |blk_p; |
|00000420| 20 20 2f 2a 20 27 63 75 | 72 72 65 6e 74 27 20 62 | /* 'cu|rrent' b|
|00000430| 6c 6f 63 6b 20 70 6f 69 | 6e 74 65 72 20 2a 2f 0d |lock poi|nter */.|
|00000440| 0a 20 20 20 72 65 67 69 | 73 74 65 72 20 6c 6f 6e |. regi|ster lon|
|00000450| 67 20 70 62 6c 6b 5f 70 | 3b 20 20 20 2f 2a 20 70 |g pblk_p|; /* p|
|00000460| 72 65 76 69 6f 75 73 20 | 62 6c 6f 63 6b 20 70 6f |revious |block po|
|00000470| 69 6e 74 65 72 20 2a 2f | 0d 0a 20 20 20 75 77 6f |inter */|.. uwo|
|00000480| 72 64 20 20 70 61 73 73 | 20 3d 20 30 3b 20 20 20 |rd pass| = 0; |
|00000490| 20 20 20 20 20 2f 2a 20 | 74 6f 20 64 65 74 65 63 | /* |to detec|
|000004a0| 74 20 77 68 65 6e 20 74 | 6f 20 73 74 6f 70 20 2a |t when t|o stop *|
|000004b0| 2f 0d 0a 20 20 20 75 77 | 6f 72 64 20 20 75 3b 20 |/.. uw|ord u; |
|000004c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 2f 2a | | /*|
|000004d0| 20 6d 69 73 63 20 2a 2f | 0d 0a 0d 0a 20 20 20 6e | misc */|.... n|
|000004e0| 6f 72 6d 5f 73 69 7a 65 | 20 3d 20 28 72 65 63 73 |orm_size| = (recs|
|000004f0| 7a 20 2b 20 28 53 5a 5f | 55 42 20 2b 20 31 29 29 |z + (SZ_|UB + 1))|
|00000500| 20 26 20 7e 41 56 4c 5f | 42 49 54 3b 20 20 20 20 | & ~AVL_|BIT; |
|00000510| 20 20 20 2f 2a 20 77 6f | 72 64 20 61 6c 69 67 6e | /* wo|rd align|
|00000520| 20 2a 2f 0d 0a 20 20 20 | 69 66 20 28 28 69 6e 74 | */.. |if ((int|
|00000530| 29 6e 6f 72 6d 5f 73 69 | 7a 65 20 3c 20 28 69 6e |)norm_si|ze < (in|
|00000540| 74 29 72 65 63 73 7a 29 | 20 20 20 20 20 20 20 2f |t)recsz)| /|
|00000550| 2a 20 77 72 61 70 20 68 | 61 73 20 74 61 6b 65 6e |* wrap h|as taken|
|00000560| 20 70 6c 61 63 65 20 3f | 20 2a 2f 0d 0a 20 20 20 | place ?| */.. |
|00000570| 20 20 20 72 65 74 75 72 | 6e 20 28 30 4c 29 3b 20 | retur|n (0L); |
|00000580| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000590| 20 20 20 20 20 20 20 2f | 2a 20 72 65 74 75 72 6e | /|* return|
|000005a0| 20 65 72 72 6f 72 20 2a | 2f 0d 0a 0d 0a 23 69 66 | error *|/....#if|
|000005b0| 20 30 0d 0a 70 72 69 6e | 74 66 28 22 5c 6e 42 54 | 0..prin|tf("\nBT|
|000005c0| 5f 47 49 56 56 41 52 2e | 43 3a 20 6c 6f 6f 6b 69 |_GIVVAR.|C: looki|
|000005d0| 6e 67 20 66 6f 72 20 30 | 78 25 78 20 62 79 74 65 |ng for 0|x%x byte|
|000005e0| 73 2e 2e 2e 22 2c 20 6e | 6f 72 6d 5f 73 69 7a 65 |s...", n|orm_size|
|000005f0| 29 3b 0d 0a 23 65 6e 64 | 69 66 0d 0a 0d 0a 20 20 |);..#end|if.... |
|00000600| 20 70 62 6c 6b 5f 70 20 | 3d 20 30 4c 3b 20 20 20 | pblk_p |= 0L; |
|00000610| 20 20 20 20 20 20 20 20 | 20 2f 2a 20 69 6e 69 74 | | /* init|
|00000620| 69 61 6c 69 7a 65 20 70 | 72 65 76 69 6f 75 73 20 |ialize p|revious |
|00000630| 62 6c 6f 63 6b 20 70 6f | 69 6e 74 65 72 20 2a 2f |block po|inter */|
|00000640| 0d 0a 20 20 20 70 72 76 | 5f 62 6c 6b 2e 75 62 5f |.. prv|_blk.ub_|
|00000650| 73 69 7a 65 20 3d 20 30 | 3b 20 20 20 20 2f 2a 20 |size = 0|; /* |
|00000660| 69 6e 69 74 69 61 6c 69 | 7a 65 20 70 72 65 76 69 |initiali|ze previ|
|00000670| 6f 75 73 20 61 76 61 69 | 6c 61 62 6c 65 20 72 65 |ous avai|lable re|
|00000680| 63 6f 72 64 20 73 69 7a | 65 20 2a 2f 0d 0a 0d 0a |cord siz|e */....|
|00000690| 20 20 20 67 65 74 66 68 | 64 72 28 26 68 64 72 70 | getfh|dr(&hdrp|
|000006a0| 74 72 73 2c 20 66 64 29 | 3b 20 20 20 20 20 2f 2a |trs, fd)|; /*|
|000006b0| 20 67 65 74 20 66 69 6c | 65 20 68 65 61 64 65 72 | get fil|e header|
|000006c0| 20 6c 69 73 74 20 70 6f | 69 6e 74 65 72 73 20 2a | list po|inters *|
|000006d0| 2f 0d 0a 0d 0a 20 20 20 | 69 66 20 28 28 62 6c 6b |/.... |if ((blk|
|000006e0| 5f 70 20 3d 20 68 64 72 | 70 74 72 73 2e 66 72 65 |_p = hdr|ptrs.fre|
|000006f0| 65 6c 73 74 29 20 21 3d | 20 30 4c 29 20 20 20 20 |elst) !=| 0L) |
|00000700| 20 20 2f 2a 20 66 69 72 | 73 74 20 70 6c 61 63 65 | /* fir|st place|
|00000710| 20 74 6f 20 6c 6f 6f 6b | 20 2a 2f 0d 0a 20 20 20 | to look| */.. |
|00000720| 7b 0d 0a 20 20 20 20 20 | 20 72 65 70 65 61 74 20 |{.. | repeat |
|00000730| 20 20 20 20 20 2f 2a 20 | 75 6e 74 69 6c 20 77 65 | /* |until we|
|00000740| 27 76 65 20 63 79 63 6c | 65 64 20 63 6f 6d 70 6c |'ve cycl|ed compl|
|00000750| 65 74 65 6c 79 20 61 72 | 6f 75 6e 64 20 2a 2f 0d |etely ar|ound */.|
|00000760| 0a 20 20 20 20 20 20 7b | 0d 0a 20 20 20 20 20 20 |. {|.. |
|00000770| 20 20 20 72 65 61 64 5f | 75 62 28 66 64 2c 20 62 | read_|ub(fd, b|
|00000780| 6c 6b 5f 70 2c 20 26 68 | 64 72 5f 62 6c 6b 29 3b |lk_p, &h|dr_blk);|
|00000790| 20 20 20 20 20 2f 2a 20 | 72 65 61 64 20 75 73 65 | /* |read use|
|000007a0| 20 62 6c 6f 63 6b 20 2a | 2f 0d 0a 23 69 66 20 30 | block *|/..#if 0|
|000007b0| 0d 0a 70 72 69 6e 74 66 | 28 22 5c 6e 42 54 5f 47 |..printf|("\nBT_G|
|000007c0| 49 56 56 41 52 2e 43 3a | 20 72 65 61 64 69 6e 67 |IVVAR.C:| reading|
|000007d0| 20 62 6c 6f 63 6b 20 61 | 74 20 30 78 25 6c 78 2c | block a|t 0x%lx,|
|000007e0| 20 2e 75 62 5f 73 69 7a | 65 20 3d 20 30 78 25 78 | .ub_siz|e = 0x%x|
|000007f0| 2c 20 2e 75 62 5f 70 6c | 61 63 65 20 3d 20 30 78 |, .ub_pl|ace = 0x|
|00000800| 25 78 22 2c 0d 0a 20 20 | 20 20 20 20 62 6c 6b 5f |%x",.. | blk_|
|00000810| 70 2c 20 68 64 72 5f 62 | 6c 6b 2e 75 62 5f 73 69 |p, hdr_b|lk.ub_si|
|00000820| 7a 65 2c 20 68 64 72 5f | 62 6c 6b 2e 75 62 5f 70 |ze, hdr_|blk.ub_p|
|00000830| 6c 61 63 65 29 3b 0d 0a | 23 65 6e 64 69 66 0d 0a |lace);..|#endif..|
|00000840| 0d 0a 20 20 20 20 20 20 | 20 20 20 69 66 20 28 68 |.. | if (h|
|00000850| 64 72 5f 62 6c 6b 2e 75 | 62 5f 70 6c 61 63 65 20 |dr_blk.u|b_place |
|00000860| 21 3d 20 28 75 77 6f 72 | 64 29 62 6c 6b 5f 70 29 |!= (uwor|d)blk_p)|
|00000870| 20 20 20 20 2f 2a 20 62 | 61 64 20 75 73 65 20 62 | /* b|ad use b|
|00000880| 6c 6f 63 6b 20 2a 2f 0d | 0a 20 20 20 20 20 20 20 |lock */.|. |
|00000890| 20 20 20 20 20 63 6b 65 | 72 72 6f 72 28 2d 20 43 | cke|rror(- C|
|000008a0| 4b 5f 49 4e 44 58 2c 20 | 22 31 31 31 22 29 3b 0d |K_INDX, |"111");.|
|000008b0| 0a 0d 0a 23 69 66 20 30 | 0d 0a 70 72 69 6e 74 66 |...#if 0|..printf|
|000008c0| 28 22 5c 6e 42 54 5f 47 | 49 56 56 41 52 2e 43 3a |("\nBT_G|IVVAR.C:|
|000008d0| 20 66 6f 75 6e 64 20 2d | 2d 30 78 25 78 2d 2d 20 | found -|-0x%x-- |
|000008e0| 25 73 61 76 61 69 6c 61 | 62 6c 65 20 62 79 74 65 |%savaila|ble byte|
|000008f0| 73 20 61 74 20 30 78 25 | 6c 78 22 2c 0d 0a 68 64 |s at 0x%|lx",..hd|
|00000900| 72 5f 62 6c 6b 2e 75 62 | 5f 73 69 7a 65 20 26 20 |r_blk.ub|_size & |
|00000910| 7e 41 56 4c 5f 42 49 54 | 2c 20 28 68 64 72 5f 62 |~AVL_BIT|, (hdr_b|
|00000920| 6c 6b 2e 75 62 5f 73 69 | 7a 65 20 26 20 41 56 4c |lk.ub_si|ze & AVL|
|00000930| 5f 42 49 54 29 20 3f 20 | 22 22 20 3a 20 22 55 4e |_BIT) ? |"" : "UN|
|00000940| 22 2c 20 62 6c 6b 5f 70 | 29 3b 0d 0a 23 65 6e 64 |", blk_p|);..#end|
|00000950| 69 66 0d 0a 0d 0a 20 20 | 20 20 20 20 20 20 20 69 |if.... | i|
|00000960| 66 20 28 68 64 72 5f 62 | 6c 6b 2e 75 62 5f 73 69 |f (hdr_b|lk.ub_si|
|00000970| 7a 65 20 26 20 41 56 4c | 5f 42 49 54 29 20 20 20 |ze & AVL|_BIT) |
|00000980| 2f 2a 20 69 73 20 74 68 | 69 73 20 73 6c 6f 74 20 |/* is th|is slot |
|00000990| 61 76 61 69 6c 61 62 6c | 65 20 3f 20 2a 2f 0d 0a |availabl|e ? */..|
|000009a0| 20 20 20 20 20 20 20 20 | 20 7b 0d 0a 0d 0a 23 69 | | {....#i|
|000009b0| 66 20 30 0d 0a 70 72 69 | 6e 74 66 28 22 5c 6e 42 |f 0..pri|ntf("\nB|
|000009c0| 54 5f 47 49 56 56 41 52 | 2e 43 3a 20 70 72 65 76 |T_GIVVAR|.C: prev|
|000009d0| 69 6f 75 73 20 62 6c 6f | 63 6b 20 70 6f 69 6e 74 |ious blo|ck point|
|000009e0| 65 72 20 69 73 20 30 78 | 25 6c 78 2c 20 30 78 25 |er is 0x|%lx, 0x%|
|000009f0| 78 20 62 79 74 65 73 22 | 2c 0d 0a 70 62 6c 6b 5f |x bytes"|,..pblk_|
|00000a00| 70 2c 20 70 72 76 5f 62 | 6c 6b 2e 75 62 5f 73 69 |p, prv_b|lk.ub_si|
|00000a10| 7a 65 29 3b 0d 0a 23 65 | 6e 64 69 66 0d 0a 0d 0a |ze);..#e|ndif....|
|00000a20| 20 20 20 20 20 20 20 20 | 20 20 20 20 69 66 20 28 | | if (|
|00000a30| 70 62 6c 6b 5f 70 20 21 | 3d 20 30 4c 29 20 20 20 |pblk_p !|= 0L) |
|00000a40| 20 20 20 20 2f 2a 20 69 | 66 20 70 72 65 76 69 6f | /* i|f previo|
|00000a50| 75 73 20 62 6c 6f 63 6b | 20 6a 6f 69 6e 73 20 74 |us block| joins t|
|00000a60| 68 69 73 20 6f 6e 65 20 | 2a 2f 0d 0a 20 20 20 20 |his one |*/.. |
|00000a70| 20 20 20 20 20 20 20 20 | 7b 20 20 20 20 20 20 20 | |{ |
|00000a80| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000a90| 2f 2a 20 6d 65 72 67 65 | 20 74 68 65 20 74 77 6f |/* merge| the two|
|00000aa0| 20 2a 2f 0d 0a 20 20 20 | 20 20 20 20 20 20 20 20 | */.. | |
|00000ab0| 20 20 20 20 62 6c 6b 5f | 70 20 3d 20 70 62 6c 6b | blk_|p = pblk|
|00000ac0| 5f 70 3b 20 20 20 20 20 | 20 2f 2a 20 6d 65 72 67 |_p; | /* merg|
|00000ad0| 65 20 70 72 65 76 20 62 | 6c 6b 20 77 20 63 75 72 |e prev b|lk w cur|
|00000ae0| 20 62 6c 6b 20 2a 2f 0d | 0a 20 20 20 20 20 20 20 | blk */.|. |
|00000af0| 20 20 20 20 20 20 20 20 | 68 64 72 5f 62 6c 6b 2e | |hdr_blk.|
|00000b00| 75 62 5f 73 69 7a 65 20 | 2b 3d 20 28 70 72 76 5f |ub_size |+= (prv_|
|00000b10| 62 6c 6b 2e 75 62 5f 73 | 69 7a 65 20 26 20 7e 41 |blk.ub_s|ize & ~A|
|00000b20| 56 4c 5f 42 49 54 29 3b | 0d 0a 20 20 20 20 20 20 |VL_BIT);|.. |
|00000b30| 20 20 20 20 20 20 20 20 | 20 68 64 72 5f 62 6c 6b | | hdr_blk|
|00000b40| 2e 75 62 5f 70 6c 61 63 | 65 20 3d 20 28 75 77 6f |.ub_plac|e = (uwo|
|00000b50| 72 64 29 62 6c 6b 5f 70 | 3b 0d 0a 20 20 20 20 20 |rd)blk_p|;.. |
|00000b60| 20 20 20 20 20 20 20 20 | 20 20 77 72 69 74 65 5f | | write_|
|00000b70| 75 62 28 66 64 2c 20 62 | 6c 6b 5f 70 2c 20 26 68 |ub(fd, b|lk_p, &h|
|00000b80| 64 72 5f 62 6c 6b 29 3b | 0d 0a 23 69 66 20 30 0d |dr_blk);|..#if 0.|
|00000b90| 0a 70 72 69 6e 74 66 28 | 22 5c 6e 42 54 5f 47 49 |.printf(|"\nBT_GI|
|00000ba0| 56 56 41 52 2e 43 3a 20 | 6d 65 72 67 65 64 20 74 |VVAR.C: |merged t|
|00000bb0| 77 6f 20 62 6c 6f 63 6b | 73 20 61 74 20 30 78 25 |wo block|s at 0x%|
|00000bc0| 6c 78 2c 20 30 78 25 78 | 20 62 79 74 65 73 22 2c |lx, 0x%x| bytes",|
|00000bd0| 0d 0a 62 6c 6b 5f 70 2c | 20 68 64 72 5f 62 6c 6b |..blk_p,| hdr_blk|
|00000be0| 2e 75 62 5f 73 69 7a 65 | 29 3b 0d 0a 23 65 6e 64 |.ub_size|);..#end|
|00000bf0| 69 66 0d 0a 0d 0a 20 20 | 20 20 20 20 20 20 20 20 |if.... | |
|00000c00| 20 20 7d 0d 0a 20 20 20 | 20 20 20 20 20 20 20 20 | }.. | |
|00000c10| 20 69 66 20 28 28 75 20 | 3d 20 68 64 72 5f 62 6c | if ((u |= hdr_bl|
|00000c20| 6b 2e 75 62 5f 73 69 7a | 65 29 20 3e 20 6e 6f 72 |k.ub_siz|e) > nor|
|00000c30| 6d 5f 73 69 7a 65 29 20 | 20 20 20 2f 2a 20 62 6c |m_size) | /* bl|
|00000c40| 6b 20 69 73 20 62 69 67 | 20 65 6e 75 66 20 2a 2f |k is big| enuf */|
|00000c50| 0d 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 7b 0d |.. | {.|
|00000c60| 0a 0d 0a 23 69 66 20 30 | 0d 0a 70 72 69 6e 74 66 |...#if 0|..printf|
|00000c70| 28 22 5c 6e 42 54 5f 47 | 49 56 56 41 52 2e 43 3a |("\nBT_G|IVVAR.C:|
|00000c80| 20 62 69 67 20 65 6e 6f | 75 67 68 20 62 6c 6f 63 | big eno|ugh bloc|
|00000c90| 6b 20 66 6f 75 6e 64 20 | 61 74 20 30 78 25 6c 78 |k found |at 0x%lx|
|00000ca0| 2c 20 30 78 25 78 20 62 | 79 74 65 73 22 2c 0d 0a |, 0x%x b|ytes",..|
|00000cb0| 62 6c 6b 5f 70 2c 20 68 | 64 72 5f 62 6c 6b 2e 75 |blk_p, h|dr_blk.u|
|00000cc0| 62 5f 73 69 7a 65 29 3b | 0d 0a 23 65 6e 64 69 66 |b_size);|..#endif|
|00000cd0| 0d 0a 0d 0a 20 20 20 20 | 20 20 20 20 20 20 20 20 |.... | |
|00000ce0| 20 20 20 69 66 20 28 28 | 75 20 2d 3d 20 6e 6f 72 | if ((|u -= nor|
|00000cf0| 6d 5f 73 69 7a 65 29 20 | 3c 20 53 5a 5f 55 42 29 |m_size) |< SZ_UB)|
|00000d00| 20 20 20 20 2f 2a 20 63 | 61 6e 20 77 65 20 73 70 | /* c|an we sp|
|00000d10| 69 74 20 69 74 20 3f 20 | 2a 2f 0d 0a 20 20 20 20 |it it ? |*/.. |
|00000d20| 20 20 20 20 20 20 20 20 | 20 20 20 7b 0d 0a 23 69 | | {..#i|
|00000d30| 66 20 30 0d 0a 70 72 69 | 6e 74 66 28 22 5c 6e 42 |f 0..pri|ntf("\nB|
|00000d40| 54 5f 47 49 56 56 41 52 | 2e 43 3a 20 4e 4f 20 53 |T_GIVVAR|.C: NO S|
|00000d50| 50 4c 49 54 3a 20 6d 61 | 72 6b 20 62 6c 6f 63 6b |PLIT: ma|rk block|
|00000d60| 20 61 74 20 30 78 25 6c | 78 20 74 6f 20 30 78 25 | at 0x%l|x to 0x%|
|00000d70| 78 20 28 4e 4f 54 20 61 | 76 61 69 6c 61 62 6c 65 |x (NOT a|vailable|
|00000d80| 29 22 2c 0d 0a 62 6c 6b | 5f 70 2c 20 68 64 72 5f |)",..blk|_p, hdr_|
|00000d90| 62 6c 6b 2e 75 62 5f 73 | 69 7a 65 20 26 20 7e 41 |blk.ub_s|ize & ~A|
|00000da0| 56 4c 5f 42 49 54 29 3b | 0d 0a 23 65 6e 64 69 66 |VL_BIT);|..#endif|
|00000db0| 0d 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|00000dc0| 20 20 20 20 68 64 72 5f | 62 6c 6b 2e 75 62 5f 73 | hdr_|blk.ub_s|
|00000dd0| 69 7a 65 20 26 3d 20 7e | 41 56 4c 5f 42 49 54 3b |ize &= ~|AVL_BIT;|
|00000de0| 20 20 20 20 20 2f 2a 20 | 4e 4f 20 6c 6f 6e 67 65 | /* |NO longe|
|00000df0| 72 20 61 76 61 69 6c 61 | 62 6c 65 20 2a 2f 0d 0a |r availa|ble */..|
|00000e00| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000e10| 20 20 77 72 69 74 65 5f | 75 62 28 66 64 2c 20 62 | write_|ub(fd, b|
|00000e20| 6c 6b 5f 70 2c 20 26 68 | 64 72 5f 62 6c 6b 29 3b |lk_p, &h|dr_blk);|
|00000e30| 0d 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |.. | |
|00000e40| 20 7d 0d 0a 20 20 20 20 | 20 20 20 20 20 20 20 20 | }.. | |
|00000e50| 20 20 20 65 6c 73 65 20 | 20 20 2f 2a 20 43 41 4e | else | /* CAN|
|00000e60| 20 73 70 6c 69 74 20 69 | 74 20 2a 2f 0d 0a 20 20 | split i|t */.. |
|00000e70| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 7b 0d 0a | | {..|
|00000e80| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000e90| 20 20 68 64 72 5f 62 6c | 6b 2e 75 62 5f 73 69 7a | hdr_bl|k.ub_siz|
|00000ea0| 65 20 3d 20 6e 6f 72 6d | 5f 73 69 7a 65 3b 20 20 |e = norm|_size; |
|00000eb0| 2f 2a 20 73 65 74 20 73 | 69 7a 65 20 6f 66 20 6e |/* set s|ize of n|
|00000ec0| 65 77 20 62 6c 6f 63 6b | 20 2a 2f 0d 0a 20 20 20 |ew block| */.. |
|00000ed0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 77 | | w|
|00000ee0| 72 69 74 65 5f 75 62 28 | 66 64 2c 20 62 6c 6b 5f |rite_ub(|fd, blk_|
|00000ef0| 70 2c 20 26 68 64 72 5f | 62 6c 6b 29 3b 0d 0a 20 |p, &hdr_|blk);.. |
|00000f00| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000f10| 20 70 62 6c 6b 5f 70 20 | 3d 20 62 6c 6b 5f 70 20 | pblk_p |= blk_p |
|00000f20| 2b 20 6e 6f 72 6d 5f 73 | 69 7a 65 3b 20 20 20 20 |+ norm_s|ize; |
|00000f30| 20 2f 2a 20 6e 65 77 20 | 6e 65 78 74 20 2a 2f 0d | /* new |next */.|
|00000f40| 0a 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|00000f50| 20 20 20 70 72 76 5f 62 | 6c 6b 2e 75 62 5f 73 69 | prv_b|lk.ub_si|
|00000f60| 7a 65 20 3d 20 75 3b 0d | 0a 20 20 20 20 20 20 20 |ze = u;.|. |
|00000f70| 20 20 20 20 20 20 20 20 | 20 20 20 70 72 76 5f 62 | | prv_b|
|00000f80| 6c 6b 2e 75 62 5f 70 6c | 61 63 65 20 3d 20 28 75 |lk.ub_pl|ace = (u|
|00000f90| 77 6f 72 64 29 70 62 6c | 6b 5f 70 3b 0d 0a 20 20 |word)pbl|k_p;.. |
|00000fa0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000fb0| 77 72 69 74 65 5f 75 62 | 28 66 64 2c 20 70 62 6c |write_ub|(fd, pbl|
|00000fc0| 6b 5f 70 2c 20 26 70 72 | 76 5f 62 6c 6b 29 3b 20 |k_p, &pr|v_blk); |
|00000fd0| 20 20 2f 2a 20 6e 65 77 | 20 72 65 63 73 7a 20 2a | /* new| recsz *|
|00000fe0| 2f 0d 0a 0d 0a 20 20 20 | 20 20 20 20 20 20 20 20 |/.... | |
|00000ff0| 20 20 20 20 20 20 20 68 | 64 72 70 74 72 73 2e 66 | h|drptrs.f|
|00001000| 72 65 65 6c 73 74 20 3d | 20 70 62 6c 6b 5f 70 3b |reelst =| pblk_p;|
|00001010| 20 20 2f 2a 20 73 65 74 | 20 6e 65 77 20 73 74 61 | /* set| new sta|
|00001020| 72 74 20 70 6f 69 6e 74 | 20 2a 2f 0d 0a 20 20 20 |rt point| */.. |
|00001030| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 70 | | p|
|00001040| 75 74 66 68 64 72 28 66 | 64 2c 20 26 68 64 72 70 |utfhdr(f|d, &hdrp|
|00001050| 74 72 73 29 3b 0d 0a 0d | 0a 23 69 66 20 30 0d 0a |trs);...|.#if 0..|
|00001060| 70 72 69 6e 74 66 28 22 | 5c 6e 42 54 5f 47 49 56 |printf("|\nBT_GIV|
|00001070| 56 41 52 2e 43 3a 20 53 | 50 4c 49 54 20 62 6c 6f |VAR.C: S|PLIT blo|
|00001080| 63 6b 20 61 74 20 30 78 | 25 6c 78 20 74 6f 20 30 |ck at 0x|%lx to 0|
|00001090| 78 25 78 20 62 79 74 65 | 73 22 2c 20 62 6c 6b 5f |x%x byte|s", blk_|
|000010a0| 70 2c 20 6e 6f 72 6d 5f | 73 69 7a 65 29 3b 0d 0a |p, norm_|size);..|
|000010b0| 70 72 69 6e 74 66 28 22 | 5c 6e 42 54 5f 47 49 56 |printf("|\nBT_GIV|
|000010c0| 56 41 52 2e 43 3a 20 4e | 45 57 20 20 20 62 6c 6f |VAR.C: N|EW blo|
|000010d0| 63 6b 20 61 74 20 30 78 | 25 6c 78 2c 20 20 20 30 |ck at 0x|%lx, 0|
|000010e0| 78 25 78 20 62 79 74 65 | 73 22 2c 20 70 62 6c 6b |x%x byte|s", pblk|
|000010f0| 5f 70 2c 20 75 29 3b 0d | 0a 23 65 6e 64 69 66 0d |_p, u);.|.#endif.|
|00001100| 0a 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |. | |
|00001110| 7d 0d 0a 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |}.. | |
|00001120| 20 20 72 65 74 75 72 6e | 20 28 62 6c 6b 5f 70 20 | return| (blk_p |
|00001130| 2b 20 53 5a 5f 55 42 29 | 3b 20 20 20 20 2f 2a 20 |+ SZ_UB)|; /* |
|00001140| 77 68 65 72 65 20 75 73 | 65 72 20 63 61 6e 20 73 |where us|er can s|
|00001150| 74 61 72 74 20 77 72 69 | 74 69 6e 67 20 2a 2f 0d |tart wri|ting */.|
|00001160| 0a 20 20 20 20 20 20 20 | 20 20 20 20 20 7d 0d 0a |. | }..|
|00001170| 0d 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 2f 2a |.. | /*|
|00001180| 20 62 6c 6f 63 6b 20 69 | 73 20 4e 4f 54 20 62 69 | block i|s NOT bi|
|00001190| 67 20 65 6e 6f 75 67 68 | 3a 20 63 68 65 63 6b 20 |g enough|: check |
|000011a0| 6e 65 78 74 20 62 6c 6f | 63 6b 20 2a 2f 0d 0a 20 |next blo|ck */.. |
|000011b0| 20 20 20 20 20 20 20 20 | 20 20 20 70 62 6c 6b 5f | | pblk_|
|000011c0| 70 20 3d 20 62 6c 6b 5f | 70 3b 0d 0a 20 20 20 20 |p = blk_|p;.. |
|000011d0| 20 20 20 20 20 20 20 20 | 70 72 76 5f 62 6c 6b 2e | |prv_blk.|
|000011e0| 75 62 5f 73 69 7a 65 20 | 3d 20 68 64 72 5f 62 6c |ub_size |= hdr_bl|
|000011f0| 6b 2e 75 62 5f 73 69 7a | 65 3b 20 20 2f 2a 20 72 |k.ub_siz|e; /* r|
|00001200| 65 6d 65 6d 62 65 72 20 | 72 65 63 6f 72 64 20 73 |emember |record s|
|00001210| 69 7a 65 20 2a 2f 0d 0a | 20 20 20 20 20 20 20 20 |ize */..| |
|00001220| 20 7d 0d 0a 20 20 20 20 | 20 20 20 20 20 65 6c 73 | }.. | els|
|00001230| 65 20 20 20 2f 2a 20 62 | 6c 6f 63 6b 20 69 73 20 |e /* b|lock is |
|00001240| 4e 4f 54 20 61 76 61 69 | 6c 61 62 6c 65 20 2a 2f |NOT avai|lable */|
|00001250| 0d 0a 20 20 20 20 20 20 | 20 20 20 7b 0d 0a 20 20 |.. | {.. |
|00001260| 20 20 20 20 20 20 20 20 | 20 20 70 62 6c 6b 5f 70 | | pblk_p|
|00001270| 20 3d 20 30 4c 3b 20 20 | 20 20 2f 2a 20 72 65 73 | = 0L; | /* res|
|00001280| 65 74 20 70 72 65 76 69 | 6f 75 73 20 62 6c 6f 63 |et previ|ous bloc|
|00001290| 6b 20 70 6f 69 6e 74 65 | 72 20 2a 2f 0d 0a 20 20 |k pointe|r */.. |
|000012a0| 20 20 20 20 20 20 20 20 | 20 20 70 72 76 5f 62 6c | | prv_bl|
|000012b0| 6b 2e 75 62 5f 73 69 7a | 65 20 3d 20 30 3b 20 20 |k.ub_siz|e = 0; |
|000012c0| 2f 2a 20 72 65 73 65 74 | 20 61 76 61 69 6c 61 62 |/* reset| availab|
|000012d0| 6c 65 20 72 65 63 6f 72 | 64 20 73 69 7a 65 20 2a |le recor|d size *|
|000012e0| 2f 0d 0a 20 20 20 20 20 | 20 20 20 20 7d 0d 0a 0d |/.. | }...|
|000012f0| 0a 20 20 20 20 20 20 20 | 20 20 2f 2a 20 6e 65 78 |. | /* nex|
|00001300| 74 20 62 6c 6f 63 6b 20 | 2a 2f 0d 0a 20 20 20 20 |t block |*/.. |
|00001310| 20 20 20 20 20 62 6c 6b | 5f 70 20 2b 3d 20 28 68 | blk|_p += (h|
|00001320| 64 72 5f 62 6c 6b 2e 75 | 62 5f 73 69 7a 65 20 26 |dr_blk.u|b_size &|
|00001330| 20 7e 41 56 4c 5f 42 49 | 54 29 3b 20 20 20 2f 2a | ~AVL_BI|T); /*|
|00001340| 20 6e 65 78 74 20 62 6c | 6f 63 6b 20 2a 2f 0d 0a | next bl|ock */..|
|00001350| 0d 0a 23 69 66 20 30 0d | 0a 70 72 69 6e 74 66 28 |..#if 0.|.printf(|
|00001360| 22 5c 6e 42 54 5f 47 49 | 56 56 41 52 2e 43 3a 20 |"\nBT_GI|VVAR.C: |
|00001370| 4e 45 58 54 20 42 4c 4f | 43 4b 3a 20 30 78 25 6c |NEXT BLO|CK: 0x%l|
|00001380| 78 22 2c 20 62 6c 6b 5f | 70 29 3b 0d 0a 70 72 69 |x", blk_|p);..pri|
|00001390| 6e 74 66 28 22 5c 6e 42 | 54 5f 47 49 56 56 41 52 |ntf("\nB|T_GIVVAR|
|000013a0| 2e 43 3a 20 68 64 72 70 | 74 72 73 2e 66 72 65 65 |.C: hdrp|trs.free|
|000013b0| 6c 73 74 3a 20 30 78 25 | 6c 78 22 2c 20 68 64 72 |lst: 0x%|lx", hdr|
|000013c0| 70 74 72 73 2e 66 72 65 | 65 6c 73 74 29 3b 0d 0a |ptrs.fre|elst);..|
|000013d0| 70 72 69 6e 74 66 28 22 | 5c 6e 42 54 5f 47 49 56 |printf("|\nBT_GIV|
|000013e0| 56 41 52 2e 43 3a 20 68 | 64 72 70 74 72 73 2e 65 |VAR.C: h|drptrs.e|
|000013f0| 6f 66 6c 73 74 3a 20 20 | 30 78 25 6c 78 22 2c 20 |oflst: |0x%lx", |
|00001400| 68 64 72 70 74 72 73 2e | 65 6f 66 6c 73 74 29 3b |hdrptrs.|eoflst);|
|00001410| 0d 0a 23 65 6e 64 69 66 | 0d 0a 0d 0a 20 20 20 20 |..#endif|.... |
|00001420| 20 20 20 20 20 69 66 20 | 28 62 6c 6b 5f 70 20 3d | if |(blk_p =|
|00001430| 3d 20 68 64 72 70 74 72 | 73 2e 65 6f 66 6c 73 74 |= hdrptr|s.eoflst|
|00001440| 29 0d 0a 20 20 20 20 20 | 20 20 20 20 7b 0d 0a 20 |).. | {.. |
|00001450| 20 20 20 20 20 20 20 20 | 20 20 20 62 6c 6b 5f 70 | | blk_p|
|00001460| 20 3d 20 42 41 53 45 42 | 4c 4b 3b 20 20 2f 2a 20 | = BASEB|LK; /* |
|00001470| 63 79 63 6c 65 20 62 61 | 63 6b 20 74 6f 20 74 68 |cycle ba|ck to th|
|00001480| 65 20 62 65 67 69 6e 6e | 69 6e 67 20 2a 2f 0d 0a |e beginn|ing */..|
|00001490| 20 20 20 20 20 20 20 20 | 20 20 20 20 70 62 6c 6b | | pblk|
|000014a0| 5f 70 20 3d 20 30 4c 3b | 0d 0a 20 20 20 20 20 20 |_p = 0L;|.. |
|000014b0| 20 20 20 7d 0d 0a 23 69 | 66 20 30 0d 0a 70 72 69 | }..#i|f 0..pri|
|000014c0| 6e 74 66 28 22 5c 6e 42 | 54 5f 47 49 56 56 41 52 |ntf("\nB|T_GIVVAR|
|000014d0| 2e 43 3a 20 70 62 6c 6b | 5f 70 3a 20 30 78 25 6c |.C: pblk|_p: 0x%l|
|000014e0| 78 22 2c 20 70 62 6c 6b | 5f 70 29 3b 0d 0a 0d 0a |x", pblk|_p);....|
|000014f0| 70 72 69 6e 74 66 28 22 | 5c 6e 42 54 5f 47 49 56 |printf("|\nBT_GIV|
|00001500| 56 41 52 2e 43 3a 20 70 | 61 73 73 3a 20 30 78 25 |VAR.C: p|ass: 0x%|
|00001510| 78 22 2c 20 70 61 73 73 | 29 3b 0d 0a 23 65 6e 64 |x", pass|);..#end|
|00001520| 69 66 0d 0a 0d 0a 20 20 | 20 20 20 20 20 20 20 69 |if.... | i|
|00001530| 66 20 28 62 6c 6b 5f 70 | 20 3d 3d 20 68 64 72 70 |f (blk_p| == hdrp|
|00001540| 74 72 73 2e 66 72 65 65 | 6c 73 74 20 26 26 20 70 |trs.free|lst && p|
|00001550| 62 6c 6b 5f 70 20 3d 3d | 20 30 4c 29 20 20 20 20 |blk_p ==| 0L) |
|00001560| 20 20 2f 2a 20 6e 6f 20 | 72 65 63 68 65 63 6b 20 | /* no |recheck |
|00001570| 2a 2f 0d 0a 20 20 20 20 | 20 20 20 20 20 20 20 20 |*/.. | |
|00001580| 62 72 65 61 6b 3b 0d 0a | 20 20 20 20 20 20 20 20 |break;..| |
|00001590| 20 65 6c 73 65 20 69 66 | 20 28 62 6c 6b 5f 70 20 | else if| (blk_p |
|000015a0| 3d 3d 20 68 64 72 70 74 | 72 73 2e 66 72 65 65 6c |== hdrpt|rs.freel|
|000015b0| 73 74 29 20 20 20 20 20 | 2f 2a 20 63 68 65 63 6b |st) |/* check|
|000015c0| 20 61 67 61 69 6e 20 77 | 2f 20 6d 65 72 67 65 20 | again w|/ merge |
|000015d0| 2a 2f 0d 0a 20 20 20 20 | 20 20 20 20 20 20 20 20 |*/.. | |
|000015e0| 2b 2b 70 61 73 73 3b 0d | 0a 20 20 20 20 20 20 7d |++pass;.|. }|
|000015f0| 0d 0a 20 20 20 20 20 20 | 75 6e 74 69 6c 28 62 6c |.. |until(bl|
|00001600| 6b 5f 70 20 3e 20 68 64 | 72 70 74 72 73 2e 66 72 |k_p > hd|rptrs.fr|
|00001610| 65 65 6c 73 74 20 26 26 | 20 70 61 73 73 20 3e 20 |eelst &&| pass > |
|00001620| 31 29 3b 20 20 20 20 2f | 2a 20 75 6e 74 69 6c 20 |1); /|* until |
|00001630| 77 65 27 72 65 20 68 6f | 6d 65 20 2a 2f 0d 0a 0d |we're ho|me */...|
|00001640| 0a 23 69 66 20 30 0d 0a | 70 72 69 6e 74 66 28 22 |.#if 0..|printf("|
|00001650| 5c 6e 42 54 5f 47 49 56 | 56 41 52 2e 43 3a 20 77 |\nBT_GIV|VAR.C: w|
|00001660| 65 27 72 65 20 68 6f 6d | 65 20 61 67 61 69 6e 20 |e're hom|e again |
|00001670| 61 74 20 30 78 25 6c 78 | 22 2c 20 62 6c 6b 5f 70 |at 0x%lx|", blk_p|
|00001680| 29 3b 0d 0a 23 65 6e 64 | 69 66 0d 0a 0d 0a 20 20 |);..#end|if.... |
|00001690| 20 7d 0d 0a 0d 0a 20 20 | 20 2f 2a 20 65 78 74 65 | }.... | /* exte|
|000016a0| 6e 64 20 66 69 6c 65 20 | 2a 2f 0d 0a 20 20 20 68 |nd file |*/.. h|
|000016b0| 64 72 5f 62 6c 6b 2e 75 | 62 5f 73 69 7a 65 20 3d |dr_blk.u|b_size =|
|000016c0| 20 6e 6f 72 6d 5f 73 69 | 7a 65 3b 0d 0a 20 20 20 | norm_si|ze;.. |
|000016d0| 68 64 72 5f 62 6c 6b 2e | 75 62 5f 70 6c 61 63 65 |hdr_blk.|ub_place|
|000016e0| 20 3d 20 28 75 77 6f 72 | 64 29 28 62 6c 6b 5f 70 | = (uwor|d)(blk_p|
|000016f0| 20 3d 20 68 64 72 70 74 | 72 73 2e 65 6f 66 6c 73 | = hdrpt|rs.eofls|
|00001700| 74 29 3b 0d 0a 20 20 20 | 77 72 69 74 65 5f 75 62 |t);.. |write_ub|
|00001710| 28 66 64 2c 20 62 6c 6b | 5f 70 2c 20 26 68 64 72 |(fd, blk|_p, &hdr|
|00001720| 5f 62 6c 6b 29 3b 20 20 | 20 20 20 2f 2a 20 77 72 |_blk); | /* wr|
|00001730| 69 74 65 20 6e 65 77 20 | 62 6c 6f 63 6b 20 68 65 |ite new |block he|
|00001740| 61 64 65 72 20 2a 2f 0d | 0a 20 20 20 77 72 69 74 |ader */.|. writ|
|00001750| 7a 65 72 6f 73 28 66 64 | 2c 20 62 6c 6b 5f 70 20 |zeros(fd|, blk_p |
|00001760| 2b 3d 20 53 5a 5f 55 42 | 2c 20 6e 6f 72 6d 5f 73 |+= SZ_UB|, norm_s|
|00001770| 69 7a 65 20 2d 20 53 5a | 5f 55 42 29 3b 20 20 20 |ize - SZ|_UB); |
|00001780| 20 20 20 2f 2a 20 26 20 | 72 65 63 6f 72 64 20 2a | /* & |record *|
|00001790| 2f 0d 0a 20 20 20 68 64 | 72 70 74 72 73 2e 65 6f |/.. hd|rptrs.eo|
|000017a0| 66 6c 73 74 20 2b 3d 20 | 6e 6f 72 6d 5f 73 69 7a |flst += |norm_siz|
|000017b0| 65 3b 0d 0a 20 20 20 70 | 75 74 66 68 64 72 28 66 |e;.. p|utfhdr(f|
|000017c0| 64 2c 20 26 68 64 72 70 | 74 72 73 29 3b 0d 0a 20 |d, &hdrp|trs);.. |
|000017d0| 20 20 72 65 74 75 72 6e | 20 28 62 6c 6b 5f 70 29 | return| (blk_p)|
|000017e0| 3b 0d 0a 7d 0d 0a 0d 0a | 76 6f 69 64 20 62 74 64 |;..}....|void btd|
|000017f0| 65 6c 76 61 72 28 66 64 | 2c 20 62 6c 6b 5f 70 29 |elvar(fd|, blk_p)|
|00001800| 20 20 20 2f 2a 20 66 72 | 65 65 20 73 70 65 63 69 | /* fr|ee speci|
|00001810| 66 69 65 64 20 6d 65 6d | 6f 72 79 20 62 6c 6f 63 |fied mem|ory bloc|
|00001820| 6b 20 2a 2f 0d 0a 69 6e | 74 20 66 64 3b 0d 0a 6c |k */..in|t fd;..l|
|00001830| 6f 6e 67 20 62 6c 6b 5f | 70 3b 0d 0a 7b 0d 0a 20 |ong blk_|p;..{.. |
|00001840| 20 20 65 78 74 65 72 6e | 20 76 6f 69 64 20 72 65 | extern| void re|
|00001850| 61 64 5f 75 62 28 29 3b | 0d 0a 20 20 20 65 78 74 |ad_ub();|.. ext|
|00001860| 65 72 6e 20 76 6f 69 64 | 20 77 72 69 74 65 5f 75 |ern void| write_u|
|00001870| 62 28 29 3b 0d 0a 20 20 | 20 42 54 42 4c 4b 48 44 |b();.. | BTBLKHD|
|00001880| 52 20 20 68 64 72 70 74 | 72 73 3b 20 20 20 20 20 |R hdrpt|rs; |
|00001890| 20 2f 2a 20 66 72 65 65 | 6c 69 73 74 20 61 6e 64 | /* free|list and|
|000018a0| 20 65 6f 66 20 70 6f 69 | 6e 74 65 72 73 20 2a 2f | eof poi|nters */|
|000018b0| 0d 0a 20 20 20 55 53 45 | 5f 42 4c 4f 43 4b 20 62 |.. USE|_BLOCK b|
|000018c0| 6c 6b 5f 68 64 72 3b 20 | 20 20 20 20 20 2f 2a 20 |lk_hdr; | /* |
|000018d0| 27 63 75 72 72 65 6e 74 | 27 20 62 6c 6f 63 6b 20 |'current|' block |
|000018e0| 68 65 61 64 65 72 20 2a | 2f 0d 0a 20 20 20 55 53 |header *|/.. US|
|000018f0| 45 5f 42 4c 4f 43 4b 20 | 73 61 76 5f 68 64 72 3b |E_BLOCK |sav_hdr;|
|00001900| 20 20 20 20 20 20 2f 2a | 20 75 73 65 64 20 69 6e | /*| used in|
|00001910| 20 6c 6f 6f 70 20 2a 2f | 0d 0a 20 20 20 6c 6f 6e | loop */|.. lon|
|00001920| 67 20 73 61 76 5f 70 3b | 20 20 20 20 20 20 20 20 |g sav_p;| |
|00001930| 20 20 20 20 20 2f 2a 20 | 66 6f 72 20 6c 6f 6f 70 | /* |for loop|
|00001940| 20 2a 2f 0d 0a 0d 0a 20 | 20 20 62 6c 6b 5f 70 20 | */.... | blk_p |
|00001950| 2d 3d 20 53 5a 5f 55 42 | 3b 20 20 20 20 20 20 20 |-= SZ_UB|; |
|00001960| 20 20 2f 2a 20 70 6f 69 | 6e 74 20 74 6f 20 62 6c | /* poi|nt to bl|
|00001970| 6f 63 6b 20 68 65 61 64 | 65 72 20 2a 2f 0d 0a 0d |ock head|er */...|
|00001980| 0a 23 69 66 20 30 0d 0a | 70 72 69 6e 74 66 28 22 |.#if 0..|printf("|
|00001990| 5c 6e 42 54 5f 44 45 4c | 56 41 52 2e 43 3a 20 64 |\nBT_DEL|VAR.C: d|
|000019a0| 65 6c 65 74 69 6e 67 20 | 62 6c 6f 63 6b 20 61 74 |eleting |block at|
|000019b0| 20 30 78 25 6c 78 22 2c | 20 62 6c 6b 5f 70 29 3b | 0x%lx",| blk_p);|
|000019c0| 0d 0a 23 65 6e 64 69 66 | 0d 0a 0d 0a 20 20 20 72 |..#endif|.... r|
|000019d0| 65 61 64 5f 75 62 28 66 | 64 2c 20 62 6c 6b 5f 70 |ead_ub(f|d, blk_p|
|000019e0| 2c 20 26 62 6c 6b 5f 68 | 64 72 29 3b 0d 0a 0d 0a |, &blk_h|dr);....|
|000019f0| 23 69 66 20 30 0d 0a 70 | 72 69 6e 74 66 28 22 5c |#if 0..p|rintf("\|
|00001a00| 6e 42 54 5f 44 45 4c 56 | 41 52 2e 43 3a 20 62 6c |nBT_DELV|AR.C: bl|
|00001a10| 6b 5f 68 64 72 2e 75 62 | 5f 73 69 7a 65 20 3d 20 |k_hdr.ub|_size = |
|00001a20| 30 78 25 78 2c 20 2e 75 | 62 5f 70 6c 61 63 65 20 |0x%x, .u|b_place |
|00001a30| 3d 20 30 78 25 78 22 2c | 0d 0a 20 20 20 20 20 20 |= 0x%x",|.. |
|00001a40| 62 6c 6b 5f 68 64 72 2e | 75 62 5f 73 69 7a 65 2c |blk_hdr.|ub_size,|
|00001a50| 20 62 6c 6b 5f 68 64 72 | 2e 75 62 5f 70 6c 61 63 | blk_hdr|.ub_plac|
|00001a60| 65 29 3b 0d 0a 23 65 6e | 64 69 66 0d 0a 0d 0a 20 |e);..#en|dif.... |
|00001a70| 20 20 69 66 20 28 62 6c | 6b 5f 68 64 72 2e 75 62 | if (bl|k_hdr.ub|
|00001a80| 5f 70 6c 61 63 65 20 21 | 3d 20 28 75 77 6f 72 64 |_place !|= (uword|
|00001a90| 29 62 6c 6b 5f 70 29 0d | 0a 20 20 20 7b 0d 0a 20 |)blk_p).|. {.. |
|00001aa0| 20 20 20 20 20 70 72 69 | 6e 74 66 28 22 5c 37 5c | pri|ntf("\7\|
|00001ab0| 6e 42 54 5f 44 45 4c 56 | 41 52 2e 43 3a 20 63 6f |nBT_DELV|AR.C: co|
|00001ac0| 72 72 75 70 74 65 64 20 | 73 61 66 65 74 79 20 77 |rrupted |safety w|
|00001ad0| 6f 72 64 20 6f 72 20 62 | 61 64 20 6f 66 66 73 65 |ord or b|ad offse|
|00001ae0| 74 21 22 29 3b 0d 0a 20 | 20 20 20 20 20 65 78 69 |t!");.. | exi|
|00001af0| 74 28 31 29 3b 0d 0a 20 | 20 20 7d 0d 0a 0d 0a 20 |t(1);.. | }.... |
|00001b00| 20 20 69 66 20 28 28 62 | 6c 6b 5f 68 64 72 2e 75 | if ((b|lk_hdr.u|
|00001b10| 62 5f 73 69 7a 65 20 26 | 20 41 56 4c 5f 42 49 54 |b_size &| AVL_BIT|
|00001b20| 29 20 21 3d 20 30 29 20 | 20 20 2f 2a 20 61 6e 79 |) != 0) | /* any|
|00001b30| 20 63 6f 72 72 75 70 74 | 69 6f 6e 20 3f 20 2a 2f | corrupt|ion ? */|
|00001b40| 0d 0a 20 20 20 7b 0d 0a | 20 20 20 20 20 20 70 72 |.. {..| pr|
|00001b50| 69 6e 74 66 28 22 5c 6e | 42 54 5f 44 45 4c 56 41 |intf("\n|BT_DELVA|
|00001b60| 52 2e 43 3a 20 64 65 6c | 65 74 69 6e 67 20 61 20 |R.C: del|eting a |
|00001b70| 72 65 63 6f 72 64 20 77 | 68 69 63 68 20 69 73 20 |record w|hich is |
|00001b80| 41 4c 52 45 41 44 59 20 | 64 65 6c 65 74 65 64 21 |ALREADY |deleted!|
|00001b90| 22 29 3b 0d 0a 20 20 20 | 20 20 20 65 78 69 74 28 |");.. | exit(|
|00001ba0| 31 29 3b 0d 0a 20 20 20 | 7d 0d 0a 0d 0a 23 69 66 |1);.. |}....#if|
|00001bb0| 20 30 0d 0a 70 72 69 6e | 74 66 28 22 5c 6e 42 54 | 0..prin|tf("\nBT|
|00001bc0| 5f 44 45 4c 56 41 52 2e | 43 3a 20 6d 65 72 67 69 |_DELVAR.|C: mergi|
|00001bd0| 6e 67 20 61 76 61 69 6c | 61 62 6c 65 20 62 6c 6f |ng avail|able blo|
|00001be0| 63 6b 73 2e 2e 2e 22 29 | 3b 0d 0a 23 65 6e 64 69 |cks...")|;..#endi|
|00001bf0| 66 0d 0a 0d 0a 20 20 20 | 67 65 74 66 68 64 72 28 |f.... |getfhdr(|
|00001c00| 26 68 64 72 70 74 72 73 | 2c 20 66 64 29 3b 20 20 |&hdrptrs|, fd); |
|00001c10| 20 20 20 2f 2a 20 67 65 | 74 20 66 69 6c 65 20 68 | /* ge|t file h|
|00001c20| 65 61 64 65 72 20 70 6f | 69 6e 74 65 72 73 20 2a |eader po|inters *|
|00001c30| 2f 0d 0a 0d 0a 23 69 66 | 20 30 0d 0a 70 72 69 6e |/....#if| 0..prin|
|00001c40| 74 66 28 22 5c 6e 42 54 | 5f 44 45 4c 56 41 52 2e |tf("\nBT|_DELVAR.|
|00001c50| 43 3a 20 68 64 72 70 74 | 72 73 2e 65 6f 66 6c 73 |C: hdrpt|rs.eofls|
|00001c60| 74 20 3d 20 30 78 25 6c | 78 22 2c 20 68 64 72 70 |t = 0x%l|x", hdrp|
|00001c70| 74 72 73 2e 65 6f 66 6c | 73 74 29 3b 0d 0a 23 65 |trs.eofl|st);..#e|
|00001c80| 6e 64 69 66 0d 0a 0d 0a | 20 20 20 2f 2a 20 6d 65 |ndif....| /* me|
|00001c90| 72 67 65 20 66 6f 6c 6c | 6f 77 69 6e 67 20 41 56 |rge foll|owing AV|
|00001ca0| 41 49 4c 41 42 4c 45 20 | 62 6c 6f 63 6b 73 20 2a |AILABLE |blocks *|
|00001cb0| 2f 0d 0a 20 20 20 73 61 | 76 5f 70 20 3d 20 62 6c |/.. sa|v_p = bl|
|00001cc0| 6b 5f 70 3b 0d 0a 20 20 | 20 73 61 76 5f 68 64 72 |k_p;.. | sav_hdr|
|00001cd0| 2e 75 62 5f 73 69 7a 65 | 20 3d 20 62 6c 6b 5f 68 |.ub_size| = blk_h|
|00001ce0| 64 72 2e 75 62 5f 73 69 | 7a 65 3b 0d 0a 0d 0a 20 |dr.ub_si|ze;.... |
|00001cf0| 20 20 66 6f 72 28 3b 3b | 29 20 20 20 20 20 2f 2a | for(;;|) /*|
|00001d00| 20 75 6e 74 69 6c 20 4e | 4f 54 20 41 56 41 49 4c | until N|OT AVAIL|
|00001d10| 20 2a 2f 0d 0a 20 20 20 | 7b 0d 0a 20 20 20 20 20 | */.. |{.. |
|00001d20| 20 73 61 76 5f 70 20 2b | 3d 20 73 61 76 5f 68 64 | sav_p +|= sav_hd|
|00001d30| 72 2e 75 62 5f 73 69 7a | 65 20 26 20 7e 41 56 4c |r.ub_siz|e & ~AVL|
|00001d40| 5f 42 49 54 3b 20 20 20 | 20 2f 2a 20 6e 65 78 74 |_BIT; | /* next|
|00001d50| 20 62 6c 6f 63 6b 20 2a | 2f 0d 0a 0d 0a 23 69 66 | block *|/....#if|
|00001d60| 20 30 0d 0a 70 72 69 6e | 74 66 28 22 5c 6e 42 54 | 0..prin|tf("\nBT|
|00001d70| 5f 44 45 4c 56 41 52 2e | 43 3a 20 73 61 76 5f 70 |_DELVAR.|C: sav_p|
|00001d80| 20 3d 20 30 78 25 6c 78 | 22 2c 20 73 61 76 5f 70 | = 0x%lx|", sav_p|
|00001d90| 29 3b 0d 0a 23 65 6e 64 | 69 66 0d 0a 0d 0a 20 20 |);..#end|if.... |
|00001da0| 20 20 20 20 2f 2a 20 62 | 65 66 6f 72 65 20 72 65 | /* b|efore re|
|00001db0| 61 64 69 6e 67 20 6e 65 | 77 20 62 6c 6f 63 6b 2c |ading ne|w block,|
|00001dc0| 20 6d 61 6b 65 20 73 75 | 72 65 20 77 65 20 63 61 | make su|re we ca|
|00001dd0| 6e 20 2a 2f 0d 0a 20 20 | 20 20 20 20 69 66 20 28 |n */.. | if (|
|00001de0| 73 61 76 5f 70 20 3d 3d | 20 68 64 72 70 74 72 73 |sav_p ==| hdrptrs|
|00001df0| 2e 65 6f 66 6c 73 74 29 | 20 20 20 20 20 2f 2a 20 |.eoflst)| /* |
|00001e00| 65 6e 64 20 6f 66 20 66 | 69 6c 65 2c 20 64 6f 6e |end of f|ile, don|
|00001e10| 65 20 2a 2f 0d 0a 20 20 | 20 20 20 20 20 20 20 62 |e */.. | b|
|00001e20| 72 65 61 6b 3b 0d 0a 20 | 20 20 20 20 20 65 6c 73 |reak;.. | els|
|00001e30| 65 20 69 66 20 28 73 61 | 76 5f 70 20 3e 20 68 64 |e if (sa|v_p > hd|
|00001e40| 72 70 74 72 73 2e 65 6f | 66 6c 73 74 29 0d 0a 20 |rptrs.eo|flst).. |
|00001e50| 20 20 20 20 20 20 20 20 | 63 6b 65 72 72 6f 72 28 | |ckerror(|
|00001e60| 2d 20 43 4b 5f 4e 4f 4d | 45 4d 2c 20 22 31 31 32 |- CK_NOM|EM, "112|
|00001e70| 22 29 3b 0d 0a 20 20 20 | 20 20 20 72 65 61 64 5f |");.. | read_|
|00001e80| 75 62 28 66 64 2c 20 73 | 61 76 5f 70 2c 20 26 73 |ub(fd, s|av_p, &s|
|00001e90| 61 76 5f 68 64 72 29 3b | 20 20 20 20 2f 2a 20 72 |av_hdr);| /* r|
|00001ea0| 65 61 64 20 6e 65 78 74 | 20 62 6c 6f 63 6b 20 2a |ead next| block *|
|00001eb0| 2f 0d 0a 20 20 20 20 20 | 20 69 66 20 28 73 61 76 |/.. | if (sav|
|00001ec0| 5f 68 64 72 2e 75 62 5f | 70 6c 61 63 65 20 21 3d |_hdr.ub_|place !=|
|00001ed0| 20 28 75 77 6f 72 64 29 | 73 61 76 5f 70 29 20 20 | (uword)|sav_p) |
|00001ee0| 20 20 20 2f 2a 20 61 6e | 64 20 76 61 6c 69 64 61 | /* an|d valida|
|00001ef0| 74 65 20 69 74 20 2a 2f | 0d 0a 20 20 20 20 20 20 |te it */|.. |
|00001f00| 20 20 20 63 6b 65 72 72 | 6f 72 28 2d 20 43 4b 5f | ckerr|or(- CK_|
|00001f10| 49 4e 44 58 2c 20 22 31 | 31 33 22 29 3b 0d 0a 0d |INDX, "1|13");...|
|00001f20| 0a 23 69 66 20 30 0d 0a | 70 72 69 6e 74 66 28 22 |.#if 0..|printf("|
|00001f30| 5c 6e 42 54 5f 44 45 4c | 56 41 52 2e 43 3a 20 73 |\nBT_DEL|VAR.C: s|
|00001f40| 61 76 5f 68 64 72 2e 75 | 62 5f 73 69 7a 65 20 3d |av_hdr.u|b_size =|
|00001f50| 20 30 78 25 78 22 2c 20 | 73 61 76 5f 68 64 72 2e | 0x%x", |sav_hdr.|
|00001f60| 75 62 5f 73 69 7a 65 29 | 3b 0d 0a 23 65 6e 64 69 |ub_size)|;..#endi|
|00001f70| 66 0d 0a 0d 0a 20 20 20 | 20 20 20 69 66 20 28 28 |f.... | if ((|
|00001f80| 73 61 76 5f 68 64 72 2e | 75 62 5f 73 69 7a 65 20 |sav_hdr.|ub_size |
|00001f90| 26 20 41 56 4c 5f 42 49 | 54 29 20 3d 3d 20 30 29 |& AVL_BI|T) == 0)|
|00001fa0| 20 2f 2a 20 62 6c 6f 63 | 6b 20 4e 4f 54 20 41 56 | /* bloc|k NOT AV|
|00001fb0| 41 49 4c 20 66 6f 72 20 | 6d 65 72 67 69 6e 67 20 |AIL for |merging |
|00001fc0| 2a 2f 0d 0a 20 20 20 20 | 20 20 20 20 20 62 72 65 |*/.. | bre|
|00001fd0| 61 6b 3b 20 20 20 20 20 | 20 2f 2a 20 77 65 20 64 |ak; | /* we d|
|00001fe0| 6f 6e 65 20 2a 2f 0d 0a | 0d 0a 23 69 66 20 30 0d |one */..|..#if 0.|
|00001ff0| 0a 70 72 69 6e 74 66 28 | 22 5c 6e 42 54 5f 44 45 |.printf(|"\nBT_DE|
|00002000| 4c 56 41 52 2e 43 3a 20 | 73 61 76 5f 68 64 72 2e |LVAR.C: |sav_hdr.|
|00002010| 75 62 5f 73 69 7a 65 20 | 26 20 41 56 4c 5f 42 49 |ub_size |& AVL_BI|
|00002020| 54 20 3d 20 30 78 25 78 | 22 2c 20 73 61 76 5f 68 |T = 0x%x|", sav_h|
|00002030| 64 72 2e 75 62 5f 73 69 | 7a 65 20 26 20 41 56 4c |dr.ub_si|ze & AVL|
|00002040| 5f 42 49 54 29 3b 0d 0a | 23 65 6e 64 69 66 0d 0a |_BIT);..|#endif..|
|00002050| 0d 0a 20 20 20 20 20 20 | 62 6c 6b 5f 68 64 72 2e |.. |blk_hdr.|
|00002060| 75 62 5f 73 69 7a 65 20 | 2b 3d 20 28 73 61 76 5f |ub_size |+= (sav_|
|00002070| 68 64 72 2e 75 62 5f 73 | 69 7a 65 20 26 20 7e 41 |hdr.ub_s|ize & ~A|
|00002080| 56 4c 5f 42 49 54 29 3b | 20 20 20 20 20 20 2f 2a |VL_BIT);| /*|
|00002090| 20 65 78 74 65 6e 64 20 | 62 6c 6b 20 2a 2f 0d 0a | extend |blk */..|
|000020a0| 0d 0a 23 69 66 20 30 0d | 0a 70 72 69 6e 74 66 28 |..#if 0.|.printf(|
|000020b0| 22 5c 6e 42 54 5f 44 45 | 4c 56 41 52 2e 43 3a 20 |"\nBT_DE|LVAR.C: |
|000020c0| 62 6c 6b 5f 68 64 72 2e | 75 62 5f 73 69 7a 65 20 |blk_hdr.|ub_size |
|000020d0| 3d 20 30 78 25 78 22 2c | 20 62 6c 6b 5f 68 64 72 |= 0x%x",| blk_hdr|
|000020e0| 2e 75 62 5f 73 69 7a 65 | 29 3b 0d 0a 23 65 6e 64 |.ub_size|);..#end|
|000020f0| 69 66 0d 0a 0d 0a 20 20 | 20 7d 0d 0a 0d 0a 20 20 |if.... | }.... |
|00002100| 20 62 6c 6b 5f 68 64 72 | 2e 75 62 5f 73 69 7a 65 | blk_hdr|.ub_size|
|00002110| 20 7c 3d 20 41 56 4c 5f | 42 49 54 3b 20 20 20 20 | |= AVL_|BIT; |
|00002120| 20 20 2f 2a 20 64 65 6c | 65 74 65 64 20 62 6c 6b | /* del|eted blk|
|00002130| 20 65 78 74 65 6e 64 65 | 64 20 26 20 61 76 61 69 | extende|d & avai|
|00002140| 6c 61 62 6c 65 20 21 20 | 2a 2f 0d 0a 0d 0a 23 69 |lable ! |*/....#i|
|00002150| 66 20 30 0d 0a 70 72 69 | 6e 74 66 28 22 5c 6e 42 |f 0..pri|ntf("\nB|
|00002160| 54 5f 44 45 4c 56 41 52 | 2e 43 3a 20 62 6c 6b 5f |T_DELVAR|.C: blk_|
|00002170| 68 64 72 2e 75 62 5f 73 | 69 7a 65 20 7c 20 41 56 |hdr.ub_s|ize | AV|
|00002180| 4c 5f 42 49 54 20 3d 20 | 30 78 25 78 22 2c 20 62 |L_BIT = |0x%x", b|
|00002190| 6c 6b 5f 68 64 72 2e 75 | 62 5f 73 69 7a 65 29 3b |lk_hdr.u|b_size);|
|000021a0| 0d 0a 23 65 6e 64 69 66 | 0d 0a 0d 0a 20 20 20 77 |..#endif|.... w|
|000021b0| 72 69 74 65 5f 75 62 28 | 66 64 2c 20 62 6c 6b 5f |rite_ub(|fd, blk_|
|000021c0| 70 2c 20 26 62 6c 6b 5f | 68 64 72 29 3b 20 20 20 |p, &blk_|hdr); |
|000021d0| 20 2f 2a 20 77 72 69 74 | 65 20 6e 65 77 20 62 6c | /* writ|e new bl|
|000021e0| 6b 20 68 65 61 64 65 72 | 20 6f 75 74 20 2a 2f 0d |k header| out */.|
|000021f0| 0a 20 20 20 68 64 72 70 | 74 72 73 2e 66 72 65 65 |. hdrp|trs.free|
|00002200| 6c 73 74 20 3d 20 62 6c | 6b 5f 70 3b 20 20 20 20 |lst = bl|k_p; |
|00002210| 20 20 2f 2a 20 73 65 74 | 20 6e 65 77 20 73 74 61 | /* set| new sta|
|00002220| 72 74 20 70 6f 69 6e 74 | 20 2a 2f 0d 0a 20 20 20 |rt point| */.. |
|00002230| 70 75 74 66 68 64 72 28 | 66 64 2c 20 26 68 64 72 |putfhdr(|fd, &hdr|
|00002240| 70 74 72 73 29 3b 20 20 | 20 20 20 2f 2a 20 73 65 |ptrs); | /* se|
|00002250| 74 20 61 20 6e 65 77 20 | 66 72 65 65 6c 73 74 20 |t a new |freelst |
|00002260| 70 6f 69 6e 74 65 72 20 | 2a 2f 0d 0a 7d 0d 0a 0d |pointer |*/..}...|
|00002270| 0a 6c 6f 6e 67 20 62 74 | 6e 78 74 76 61 72 28 66 |.long bt|nxtvar(f|
|00002280| 64 2c 20 6f 66 66 73 65 | 74 29 20 20 2f 2a 20 72 |d, offse|t) /* r|
|00002290| 65 74 75 72 6e 20 6f 66 | 66 73 65 74 20 74 6f 20 |eturn of|fset to |
|000022a0| 6e 65 78 74 20 72 65 63 | 6f 72 64 3a 20 4e 4f 20 |next rec|ord: NO |
|000022b0| 45 4f 46 20 43 48 4b 20 | 21 20 2a 2f 0d 0a 69 6e |EOF CHK |! */..in|
|000022c0| 74 20 20 20 20 20 20 20 | 20 66 64 3b 0d 0a 6c 6f |t | fd;..lo|
|000022d0| 6e 67 20 20 20 20 20 20 | 20 6f 66 66 73 65 74 3b |ng | offset;|
|000022e0| 0d 0a 7b 0d 0a 20 20 20 | 65 78 74 65 72 6e 20 75 |..{.. |extern u|
|000022f0| 77 6f 72 64 20 62 74 73 | 69 7a 76 61 72 28 29 3b |word bts|izvar();|
|00002300| 0d 0a 0d 0a 20 20 20 69 | 66 20 28 6f 66 66 73 65 |.... i|f (offse|
|00002310| 74 20 3c 20 28 6c 6f 6e | 67 29 28 42 41 53 45 42 |t < (lon|g)(BASEB|
|00002320| 4c 4b 20 2b 20 53 5a 5f | 55 42 29 29 0d 0a 20 20 |LK + SZ_|UB)).. |
|00002330| 20 20 20 20 72 65 74 75 | 72 6e 20 28 28 6c 6f 6e | retu|rn ((lon|
|00002340| 67 29 28 42 41 53 45 42 | 4c 4b 20 2b 20 53 5a 5f |g)(BASEB|LK + SZ_|
|00002350| 55 42 29 29 3b 0d 0a 0d | 0a 20 20 20 6f 66 66 73 |UB));...|. offs|
|00002360| 65 74 20 2b 3d 20 62 74 | 73 69 7a 76 61 72 28 66 |et += bt|sizvar(f|
|00002370| 64 2c 20 6f 66 66 73 65 | 74 29 20 2b 20 53 5a 5f |d, offse|t) + SZ_|
|00002380| 55 42 3b 20 2f 2a 20 6d | 69 67 68 74 20 62 65 20 |UB; /* m|ight be |
|00002390| 62 65 79 6f 6e 64 20 45 | 4f 46 20 2a 2f 0d 0a 0d |beyond E|OF */...|
|000023a0| 0a 20 20 20 72 65 74 75 | 72 6e 20 28 6f 66 66 73 |. retu|rn (offs|
|000023b0| 65 74 29 3b 0d 0a 7d 0d | 0a 0d 0a 75 77 6f 72 64 |et);..}.|...uword|
|000023c0| 20 62 74 73 69 7a 76 61 | 72 28 66 64 2c 20 6f 66 | btsizva|r(fd, of|
|000023d0| 66 73 65 74 29 20 20 2f | 2a 20 72 65 74 75 72 6e |fset) /|* return|
|000023e0| 20 73 69 7a 65 6f 66 20 | 72 65 63 6f 72 64 20 2a | sizeof |record *|
|000023f0| 2f 0d 0a 69 6e 74 20 20 | 20 20 20 20 20 20 66 64 |/..int | fd|
|00002400| 3b 0d 0a 6c 6f 6e 67 20 | 20 20 20 20 20 20 6f 66 |;..long | of|
|00002410| 66 73 65 74 3b 0d 0a 7b | 0d 0a 20 20 20 65 78 74 |fset;..{|.. ext|
|00002420| 65 72 6e 20 6c 6f 6e 67 | 20 6c 73 65 65 6b 28 29 |ern long| lseek()|
|00002430| 3b 0d 0a 20 20 20 65 78 | 74 65 72 6e 20 75 69 6e |;.. ex|tern uin|
|00002440| 74 20 72 65 61 64 28 29 | 3b 0d 0a 20 20 20 75 77 |t read()|;.. uw|
|00002450| 6f 72 64 20 73 69 7a 65 | 20 3d 20 30 3b 0d 0a 0d |ord size| = 0;...|
|00002460| 0a 20 20 20 69 66 20 28 | 6c 73 65 65 6b 28 66 64 |. if (|lseek(fd|
|00002470| 2c 20 6f 66 66 73 65 74 | 20 2d 20 53 5a 5f 55 42 |, offset| - SZ_UB|
|00002480| 2c 20 30 29 20 3d 3d 20 | 2d 31 4c 29 20 20 20 2f |, 0) == |-1L) /|
|00002490| 2a 20 73 65 65 6b 20 74 | 6f 20 77 68 65 72 65 20 |* seek t|o where |
|000024a0| 6c 6f 6e 67 20 69 73 20 | 2a 2f 0d 0a 20 20 20 20 |long is |*/.. |
|000024b0| 20 20 63 6b 65 72 72 6f | 72 28 2d 20 43 4b 5f 53 | ckerro|r(- CK_S|
|000024c0| 45 45 4b 2c 20 22 31 31 | 34 22 29 3b 0d 0a 20 20 |EEK, "11|4");.. |
|000024d0| 20 69 66 20 28 72 65 61 | 64 28 66 64 2c 20 28 63 | if (rea|d(fd, (c|
|000024e0| 68 61 72 20 2a 29 26 73 | 69 7a 65 2c 20 73 69 7a |har *)&s|ize, siz|
|000024f0| 65 6f 66 28 73 69 7a 65 | 29 29 20 3d 3d 20 45 52 |eof(size|)) == ER|
|00002500| 52 29 0d 0a 20 20 20 20 | 20 20 63 6b 65 72 72 6f |R).. | ckerro|
|00002510| 72 28 2d 20 43 4b 5f 52 | 45 41 44 2c 20 22 31 31 |r(- CK_R|EAD, "11|
|00002520| 35 22 29 3b 0d 0a 20 20 | 20 72 65 74 75 72 6e 20 |5");.. | return |
|00002530| 28 28 75 77 6f 72 64 29 | 28 73 69 7a 65 20 2d 20 |((uword)|(size - |
|00002540| 53 5a 5f 55 42 29 29 3b | 20 20 2f 2a 20 63 61 73 |SZ_UB));| /* cas|
|00002550| 74 20 72 65 71 75 69 72 | 65 64 20 66 6f 72 20 4c |t requir|ed for L|
|00002560| 43 20 2a 2f 0d 0a 7d 0d | 0a 0d 0a 76 6f 69 64 20 |C */..}.|...void |
|00002570| 77 72 69 74 7a 65 72 6f | 73 28 66 64 2c 20 6f 66 |writzero|s(fd, of|
|00002580| 66 73 65 74 2c 20 6e 29 | 20 20 20 20 2f 2a 20 65 |fset, n)| /* e|
|00002590| 78 74 65 6e 64 20 66 69 | 6c 65 20 77 69 74 68 20 |xtend fi|le with |
|000025a0| 7a 65 72 6f 73 20 2a 2f | 0d 0a 69 6e 74 20 66 64 |zeros */|..int fd|
|000025b0| 3b 0d 0a 6c 6f 6e 67 20 | 6f 66 66 73 65 74 3b 0d |;..long |offset;.|
|000025c0| 0a 75 77 6f 72 64 20 6e | 3b 0d 0a 7b 0d 0a 20 20 |.uword n|;..{.. |
|000025d0| 20 65 78 74 65 72 6e 20 | 6c 6f 6e 67 20 6c 73 65 | extern |long lse|
|000025e0| 65 6b 28 29 3b 0d 0a 20 | 20 20 65 78 74 65 72 6e |ek();.. | extern|
|000025f0| 20 75 69 6e 74 20 77 72 | 69 74 65 28 29 3b 0d 0a | uint wr|ite();..|
|00002600| 20 20 20 65 78 74 65 72 | 6e 20 63 68 61 72 20 2a | exter|n char *|
|00002610| 63 61 6c 6c 6f 63 28 29 | 3b 0d 0a 20 20 20 63 68 |calloc()|;.. ch|
|00002620| 61 72 20 2a 63 70 3b 0d | 0a 0d 0a 20 20 20 69 66 |ar *cp;.|... if|
|00002630| 20 28 6c 73 65 65 6b 28 | 66 64 2c 20 6f 66 66 73 | (lseek(|fd, offs|
|00002640| 65 74 2c 20 30 29 20 3d | 3d 20 2d 31 4c 29 20 20 |et, 0) =|= -1L) |
|00002650| 20 2f 2a 20 73 65 65 6b | 20 74 6f 20 77 68 65 72 | /* seek| to wher|
|00002660| 65 20 6c 6f 6e 67 20 69 | 73 20 2a 2f 0d 0a 20 20 |e long i|s */.. |
|00002670| 20 20 20 20 63 6b 65 72 | 72 6f 72 28 2d 20 43 4b | cker|ror(- CK|
|00002680| 5f 53 45 45 4b 2c 20 22 | 31 31 36 22 29 3b 0d 0a |_SEEK, "|116");..|
|00002690| 20 20 20 69 66 20 28 28 | 63 70 20 3d 20 63 61 6c | if ((|cp = cal|
|000026a0| 6c 6f 63 28 6e 2c 20 31 | 29 29 20 3d 3d 20 20 4e |loc(n, 1|)) == N|
|000026b0| 55 4c 4c 29 0d 0a 20 20 | 20 20 20 20 63 6b 65 72 |ULL).. | cker|
|000026c0| 72 6f 72 28 2d 20 43 4b | 5f 4e 4f 4d 45 4d 2c 20 |ror(- CK|_NOMEM, |
|000026d0| 22 31 31 37 22 29 3b 0d | 0a 20 20 20 69 66 20 28 |"117");.|. if (|
|000026e0| 77 72 69 74 65 28 66 64 | 2c 20 63 70 2c 20 6e 29 |write(fd|, cp, n)|
|000026f0| 20 3d 3d 20 45 52 52 29 | 0d 0a 20 20 20 20 20 20 | == ERR)|.. |
|00002700| 63 6b 65 72 72 6f 72 28 | 2d 20 43 4b 5f 52 45 41 |ckerror(|- CK_REA|
|00002710| 44 2c 20 22 31 31 38 22 | 29 3b 0d 0a 20 20 20 66 |D, "118"|);.. f|
|00002720| 72 65 65 28 63 70 29 3b | 0d 0a 7d 0d 0a 0d 0a 76 |ree(cp);|..}....v|
|00002730| 6f 69 64 20 72 65 61 64 | 5f 75 62 28 66 64 2c 20 |oid read|_ub(fd, |
|00002740| 6f 66 66 73 65 74 2c 20 | 75 62 70 29 20 20 2f 2a |offset, |ubp) /*|
|00002750| 20 72 65 61 64 20 75 73 | 65 20 62 6c 6f 63 6b 20 | read us|e block |
|00002760| 2a 2f 0d 0a 69 6e 74 20 | 20 20 20 20 20 20 20 66 |*/..int | f|
|00002770| 64 3b 0d 0a 6c 6f 6e 67 | 20 20 20 20 20 20 20 6f |d;..long| o|
|00002780| 66 66 73 65 74 3b 0d 0a | 55 53 45 5f 42 4c 4f 43 |ffset;..|USE_BLOC|
|00002790| 4b 20 2a 75 62 70 3b 0d | 0a 7b 0d 0a 20 20 20 65 |K *ubp;.|.{.. e|
|000027a0| 78 74 65 72 6e 20 6c 6f | 6e 67 20 6c 73 65 65 6b |xtern lo|ng lseek|
|000027b0| 28 29 3b 0d 0a 20 20 20 | 65 78 74 65 72 6e 20 75 |();.. |extern u|
|000027c0| 69 6e 74 20 72 65 61 64 | 28 29 3b 0d 0a 0d 0a 20 |int read|();.... |
|000027d0| 20 20 69 66 20 28 6c 73 | 65 65 6b 28 66 64 2c 20 | if (ls|eek(fd, |
|000027e0| 6f 66 66 73 65 74 2c 20 | 30 29 20 3d 3d 20 2d 31 |offset, |0) == -1|
|000027f0| 4c 29 20 20 20 2f 2a 20 | 73 65 65 6b 20 74 6f 20 |L) /* |seek to |
|00002800| 77 68 65 72 65 20 6c 6f | 6e 67 20 69 73 20 2a 2f |where lo|ng is */|
|00002810| 0d 0a 20 20 20 20 20 20 | 63 6b 65 72 72 6f 72 28 |.. |ckerror(|
|00002820| 2d 20 43 4b 5f 53 45 45 | 4b 2c 20 22 31 31 39 22 |- CK_SEE|K, "119"|
|00002830| 29 3b 0d 0a 20 20 20 69 | 66 20 28 72 65 61 64 28 |);.. i|f (read(|
|00002840| 66 64 2c 20 28 63 68 61 | 72 20 2a 29 75 62 70 2c |fd, (cha|r *)ubp,|
|00002850| 20 53 5a 5f 55 42 29 20 | 3d 3d 20 45 52 52 29 0d | SZ_UB) |== ERR).|
|00002860| 0a 20 20 20 20 20 20 63 | 6b 65 72 72 6f 72 28 2d |. c|kerror(-|
|00002870| 20 43 4b 5f 52 45 41 44 | 2c 20 22 31 32 30 22 29 | CK_READ|, "120")|
|00002880| 3b 0d 0a 7d 0d 0a 0d 0a | 76 6f 69 64 20 77 72 69 |;..}....|void wri|
|00002890| 74 65 5f 75 62 28 66 64 | 2c 20 6f 66 66 73 65 74 |te_ub(fd|, offset|
|000028a0| 2c 20 75 62 70 29 20 20 | 2f 2a 20 77 72 69 74 65 |, ubp) |/* write|
|000028b0| 20 75 73 65 20 62 6c 6f | 63 6b 20 2a 2f 0d 0a 69 | use blo|ck */..i|
|000028c0| 6e 74 20 20 20 20 20 20 | 20 20 66 64 3b 0d 0a 6c |nt | fd;..l|
|000028d0| 6f 6e 67 20 20 20 20 20 | 20 20 6f 66 66 73 65 74 |ong | offset|
|000028e0| 3b 0d 0a 55 53 45 5f 42 | 4c 4f 43 4b 20 2a 75 62 |;..USE_B|LOCK *ub|
|000028f0| 70 3b 0d 0a 7b 0d 0a 20 | 20 20 65 78 74 65 72 6e |p;..{.. | extern|
|00002900| 20 6c 6f 6e 67 20 6c 73 | 65 65 6b 28 29 3b 0d 0a | long ls|eek();..|
|00002910| 20 20 20 65 78 74 65 72 | 6e 20 75 69 6e 74 20 77 | exter|n uint w|
|00002920| 72 69 74 65 28 29 3b 0d | 0a 0d 0a 20 20 20 69 66 |rite();.|... if|
|00002930| 20 28 6c 73 65 65 6b 28 | 66 64 2c 20 6f 66 66 73 | (lseek(|fd, offs|
|00002940| 65 74 2c 20 30 29 20 3d | 3d 20 2d 31 4c 29 20 20 |et, 0) =|= -1L) |
|00002950| 20 2f 2a 20 73 65 65 6b | 20 74 6f 20 77 68 65 72 | /* seek| to wher|
|00002960| 65 20 6c 6f 6e 67 20 69 | 73 20 2a 2f 0d 0a 20 20 |e long i|s */.. |
|00002970| 20 20 20 20 63 6b 65 72 | 72 6f 72 28 2d 20 43 4b | cker|ror(- CK|
|00002980| 5f 53 45 45 4b 2c 20 22 | 31 32 31 22 29 3b 0d 0a |_SEEK, "|121");..|
|00002990| 20 20 20 69 66 20 28 77 | 72 69 74 65 28 66 64 2c | if (w|rite(fd,|
|000029a0| 20 28 63 68 61 72 20 2a | 29 75 62 70 2c 20 53 5a | (char *|)ubp, SZ|
|000029b0| 5f 55 42 29 20 3d 3d 20 | 45 52 52 29 0d 0a 20 20 |_UB) == |ERR).. |
|000029c0| 20 20 20 20 63 6b 65 72 | 72 6f 72 28 2d 20 43 4b | cker|ror(- CK|
|000029d0| 5f 52 45 41 44 2c 20 22 | 31 32 32 22 29 3b 0d 0a |_READ, "|122");..|
|000029e0| 7d 0d 0a 0d 0a 23 69 66 | 6e 64 65 66 20 4e 4f 54 |}....#if|ndef NOT|
|000029f0| 45 53 54 0d 0a 0d 0a 23 | 69 6e 63 6c 75 64 65 20 |EST....#|include |
|00002a00| 22 62 74 66 69 6f 2e 68 | 22 0d 0a 0d 0a 76 6f 69 |"btfio.h|"....voi|
|00002a10| 64 20 6d 61 69 6e 28 61 | 72 67 63 2c 20 61 72 67 |d main(a|rgc, arg|
|00002a20| 76 29 0d 0a 69 6e 74 20 | 61 72 67 63 3b 0d 0a 63 |v)..int |argc;..c|
|00002a30| 68 61 72 20 2a 61 72 67 | 76 5b 5d 3b 0d 0a 7b 0d |har *arg|v[];..{.|
|00002a40| 0a 20 20 20 42 54 42 4c | 4b 48 44 52 20 68 64 72 |. BTBL|KHDR hdr|
|00002a50| 70 74 72 73 3b 0d 0a 20 | 20 20 69 6e 74 20 20 66 |ptrs;.. | int f|
|00002a60| 64 3b 0d 0a 20 20 20 69 | 6e 74 20 20 69 3b 0d 0a |d;.. i|nt i;..|
|00002a70| 20 20 20 69 6e 74 20 20 | 6a 3b 0d 0a 20 20 20 69 | int |j;.. i|
|00002a80| 6e 74 20 20 6b 3b 0d 0a | 20 20 20 69 6e 74 20 20 |nt k;..| int |
|00002a90| 63 6f 75 6e 74 20 3d 20 | 30 3b 0d 0a 20 20 20 6c |count = |0;.. l|
|00002aa0| 6f 6e 67 20 6c 2c 20 6c | 31 20 3d 20 30 4c 2c 20 |ong l, l|1 = 0L, |
|00002ab0| 6c 32 20 3d 20 30 4c 3b | 0d 0a 20 20 20 75 77 6f |l2 = 0L;|.. uwo|
|00002ac0| 72 64 20 6d 61 78 63 6f | 75 6e 74 3b 0d 0a 0d 0a |rd maxco|unt;....|
|00002ad0| 20 20 20 69 66 20 28 61 | 72 67 63 20 21 3d 20 32 | if (a|rgc != 2|
|00002ae0| 29 0d 0a 20 20 20 7b 0d | 0a 20 20 20 20 20 20 70 |).. {.|. p|
|00002af0| 72 69 6e 74 66 28 22 5c | 6e 4e 65 65 64 20 61 72 |rintf("\|nNeed ar|
|00002b00| 67 75 6d 65 6e 74 3a 20 | 6d 61 78 63 6f 75 6e 74 |gument: |maxcount|
|00002b10| 21 5c 6e 22 29 3b 0d 0a | 20 20 20 20 20 20 65 78 |!\n");..| ex|
|00002b20| 69 74 28 31 29 3b 0d 0a | 20 20 20 7d 0d 0a 20 20 |it(1);..| }.. |
|00002b30| 20 6d 61 78 63 6f 75 6e | 74 20 3d 20 61 74 6f 69 | maxcoun|t = atoi|
|00002b40| 28 61 72 67 76 5b 31 5d | 29 20 2b 20 31 3b 0d 0a |(argv[1]|) + 1;..|
|00002b50| 0d 0a 20 20 20 69 66 20 | 28 28 66 64 20 3d 20 62 |.. if |((fd = b|
|00002b60| 74 5f 6f 70 65 6e 28 22 | 74 65 73 74 2e 64 61 74 |t_open("|test.dat|
|00002b70| 22 2c 20 4f 5f 4e 45 57 | 7c 4f 5f 52 44 57 52 29 |", O_NEW||O_RDWR)|
|00002b80| 29 20 3d 3d 20 45 52 52 | 29 0d 0a 20 20 20 20 20 |) == ERR|).. |
|00002b90| 20 63 6b 65 72 72 6f 72 | 28 2d 20 43 4b 5f 4f 50 | ckerror|(- CK_OP|
|00002ba0| 45 4e 2c 20 22 62 74 67 | 69 76 76 61 72 2e 63 3a |EN, "btg|ivvar.c:|
|00002bb0| 20 74 65 73 74 2e 64 61 | 74 22 29 3b 0d 0a 0d 0a | test.da|t");....|
|00002bc0| 20 20 20 68 64 72 70 74 | 72 73 2e 66 72 65 65 6c | hdrpt|rs.freel|
|00002bd0| 73 74 20 3d 20 30 4c 3b | 0d 0a 20 20 20 68 64 72 |st = 0L;|.. hdr|
|00002be0| 70 74 72 73 2e 65 6f 66 | 6c 73 74 20 3d 20 38 4c |ptrs.eof|lst = 8L|
|00002bf0| 3b 0d 0a 20 20 20 70 75 | 74 66 68 64 72 28 66 64 |;.. pu|tfhdr(fd|
|00002c00| 2c 20 26 68 64 72 70 74 | 72 73 29 3b 0d 0a 0d 0a |, &hdrpt|rs);....|
|00002c10| 20 20 20 66 6f 72 20 28 | 69 20 3d 20 31 2c 20 6a | for (|i = 1, j|
|00002c20| 20 3d 20 31 3b 20 28 6b | 20 3d 20 69 20 2b 20 6a | = 1; (k| = i + j|
|00002c30| 29 20 3c 20 6d 61 78 63 | 6f 75 6e 74 3b 20 6a 20 |) < maxc|ount; j |
|00002c40| 3d 20 69 2c 20 69 20 3d | 20 6b 29 0d 0a 20 20 20 |= i, i =| k).. |
|00002c50| 7b 0d 0a 20 20 20 20 20 | 20 69 66 20 28 63 6f 75 |{.. | if (cou|
|00002c60| 6e 74 20 3d 3d 20 32 29 | 0d 0a 20 20 20 20 20 20 |nt == 2)|.. |
|00002c70| 7b 0d 0a 20 20 20 20 20 | 20 20 20 20 70 72 69 6e |{.. | prin|
|00002c80| 74 66 28 22 5c 6e 64 65 | 6c 65 74 69 6e 67 20 72 |tf("\nde|leting r|
|00002c90| 65 63 6f 72 64 20 61 74 | 20 62 79 74 65 20 6f 66 |ecord at| byte of|
|00002ca0| 66 73 65 74 20 30 78 25 | 6c 78 22 2c 20 6c 31 29 |fset 0x%|lx", l1)|
|00002cb0| 3b 0d 0a 20 20 20 20 20 | 20 20 20 20 62 74 64 65 |;.. | btde|
|00002cc0| 6c 76 61 72 28 66 64 2c | 20 6c 31 29 3b 0d 0a 20 |lvar(fd,| l1);.. |
|00002cd0| 20 20 20 20 20 20 20 20 | 70 72 69 6e 74 66 28 22 | |printf("|
|00002ce0| 5c 6e 64 65 6c 65 74 69 | 6e 67 20 72 65 63 6f 72 |\ndeleti|ng recor|
|00002cf0| 64 20 61 74 20 62 79 74 | 65 20 6f 66 66 73 65 74 |d at byt|e offset|
|00002d00| 20 30 78 25 6c 78 22 2c | 20 6c 32 29 3b 0d 0a 20 | 0x%lx",| l2);.. |
|00002d10| 20 20 20 20 20 20 20 20 | 62 74 64 65 6c 76 61 72 | |btdelvar|
|00002d20| 28 66 64 2c 20 6c 32 29 | 3b 0d 0a 0d 0a 20 20 20 |(fd, l2)|;.... |
|00002d30| 20 20 20 7d 0d 0a 20 20 | 20 20 20 20 70 72 69 6e | }.. | prin|
|00002d40| 74 66 28 22 5c 6e 41 73 | 6b 69 6e 67 20 66 6f 72 |tf("\nAs|king for|
|00002d50| 20 30 78 25 78 20 62 79 | 74 65 20 72 65 63 6f 72 | 0x%x by|te recor|
|00002d60| 64 3a 20 22 2c 20 6b 29 | 3b 0d 0a 20 20 20 20 20 |d: ", k)|;.. |
|00002d70| 20 6c 20 3d 20 62 74 67 | 69 76 76 61 72 28 66 64 | l = btg|ivvar(fd|
|00002d80| 2c 20 6b 29 3b 0d 0a 20 | 20 20 20 20 20 69 66 20 |, k);.. | if |
|00002d90| 28 63 6f 75 6e 74 20 3d | 3d 20 30 29 0d 0a 20 20 |(count =|= 0).. |
|00002da0| 20 20 20 20 20 20 20 6c | 31 20 3d 20 6c 3b 0d 0a | l|1 = l;..|
|00002db0| 20 20 20 20 20 20 65 6c | 73 65 20 69 66 20 28 63 | el|se if (c|
|00002dc0| 6f 75 6e 74 20 3d 3d 20 | 31 29 0d 0a 20 20 20 20 |ount == |1).. |
|00002dd0| 20 20 20 20 20 6c 32 20 | 3d 20 6c 3b 0d 0a 20 20 | l2 |= l;.. |
|00002de0| 20 20 20 20 69 66 20 28 | 63 6f 75 6e 74 20 3d 3d | if (|count ==|
|00002df0| 20 32 29 0d 0a 20 20 20 | 20 20 20 20 20 20 63 6f | 2).. | co|
|00002e00| 75 6e 74 20 3d 20 30 3b | 0d 0a 20 20 20 20 20 20 |unt = 0;|.. |
|00002e10| 65 6c 73 65 0d 0a 20 20 | 20 20 20 20 20 20 20 63 |else.. | c|
|00002e20| 6f 75 6e 74 2b 2b 3b 0d | 0a 20 20 20 20 20 20 69 |ount++;.|. i|
|00002e30| 66 20 28 6c 20 21 3d 20 | 30 4c 29 0d 0a 20 20 20 |f (l != |0L).. |
|00002e40| 20 20 20 7b 0d 0a 20 20 | 20 20 20 20 20 20 20 70 | {.. | p|
|00002e50| 72 69 6e 74 66 28 22 5c | 6e 67 6f 74 20 72 65 63 |rintf("\|ngot rec|
|00002e60| 6f 72 64 20 61 74 20 62 | 79 74 65 20 6f 66 66 73 |ord at b|yte offs|
|00002e70| 65 74 20 30 78 25 6c 78 | 22 2c 20 6c 29 3b 0d 0a |et 0x%lx|", l);..|
|00002e80| 20 20 20 20 20 20 7d 0d | 0a 20 20 20 20 20 20 65 | }.|. e|
|00002e90| 6c 73 65 0d 0a 20 20 20 | 20 20 20 7b 0d 0a 20 20 |lse.. | {.. |
|00002ea0| 20 20 20 20 20 20 20 70 | 72 69 6e 74 66 28 22 5c | p|rintf("\|
|00002eb0| 6e 4d 41 49 4e 3a 20 62 | 74 67 69 76 76 61 72 28 |nMAIN: b|tgivvar(|
|00002ec0| 29 20 46 41 49 4c 45 44 | 21 20 6c 20 3d 20 25 6c |) FAILED|! l = %l|
|00002ed0| 64 22 2c 20 6c 29 3b 0d | 0a 20 20 20 20 20 20 20 |d", l);.|. |
|00002ee0| 20 20 62 72 65 61 6b 3b | 0d 0a 20 20 20 20 20 20 | break;|.. |
|00002ef0| 7d 0d 0a 20 20 20 7d 0d | 0a 20 20 20 63 6c 6f 73 |}.. }.|. clos|
|00002f00| 65 28 66 64 29 3b 0d 0a | 20 20 20 70 75 74 73 28 |e(fd);..| puts(|
|00002f10| 22 22 29 3b 0d 0a 7d 0d | 0a 23 65 6e 64 69 66 0d |"");..}.|.#endif.|
|00002f20| 0a | |. | |
+--------+-------------------------+-------------------------+--------+--------+
