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This file was processed as: DOS BACKUP file
(archive/dosBackupFile).
You can browse this item here: LOCKUNLK.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\LOCKUNLK.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 4c 4f 43 | 4b 55 4e 4c 4b 2e 43 00 |RARY\LOC|KUNLK.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 20 43 6f 70 79 72 | 69 67 68 74 20 28 43 29 |/* Copyr|ight (C)|
|00000090| 20 20 57 61 6c 74 65 72 | 20 4c 2e 20 50 65 61 63 | Walter| L. Peac|
|000000a0| 6f 63 6b 20 31 39 38 34 | 2d 31 39 38 38 2e 20 20 |ock 1984|-1988. |
|000000b0| 41 6c 6c 20 72 69 67 68 | 74 73 20 72 65 73 65 72 |All righ|ts reser|
|000000c0| 76 65 64 20 2a 2f 0d 0a | 2f 2a 20 6c 6f 63 6b 75 |ved */..|/* locku|
|000000d0| 6e 6c 6b 2e 63 20 20 6c | 6f 63 6b 20 2f 20 75 6e |nlk.c l|ock / un|
|000000e0| 6c 6f 63 6b 20 72 65 63 | 6f 72 64 20 75 73 69 6e |lock rec|ord usin|
|000000f0| 67 20 4f 53 20 6c 6f 63 | 6b 69 6e 67 20 66 75 6e |g OS loc|king fun|
|00000100| 63 74 69 6f 6e 2e 20 31 | 31 2f 30 36 2f 38 37 20 |ction. 1|1/06/87 |
|00000110| 2a 2f 0d 0a 0d 0a 2f 2a | 2d 2d 2d 2d 2d 2d 2d 2d |*/..../*|--------|
|00000120| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000130| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000140| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000150| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000160| 2d 2d 2d 2d 0d 0a 20 2a | 20 6c 6f 63 6b 75 6e 6c |----.. *| lockunl|
|00000170| 6b 28 29 20 69 73 20 63 | 61 6c 6c 65 64 20 62 79 |k() is c|alled by|
|00000180| 20 43 42 54 52 45 45 20 | 61 73 20 6e 65 65 64 65 | CBTREE |as neede|
|00000190| 64 20 74 6f 20 65 66 66 | 65 63 74 20 72 65 63 6f |d to eff|ect reco|
|000001a0| 72 64 20 6c 6f 63 6b 69 | 6e 67 2e 0d 0a 20 2a 20 |rd locki|ng... * |
|000001b0| 54 68 69 73 20 69 73 20 | 64 69 73 74 72 69 62 75 |This is |distribu|
|000001c0| 74 65 64 20 61 73 20 61 | 20 73 74 75 62 20 66 75 |ted as a| stub fu|
|000001d0| 6e 63 74 69 6f 6e 2e 20 | 20 59 6f 75 20 77 69 6c |nction. | You wil|
|000001e0| 6c 20 6e 65 65 64 20 74 | 6f 20 6d 6f 64 69 66 79 |l need t|o modify|
|000001f0| 20 74 68 69 73 0d 0a 20 | 2a 20 66 75 6e 63 74 69 | this.. |* functi|
|00000200| 6f 6e 20 74 6f 20 70 65 | 72 66 6f 72 6d 20 74 68 |on to pe|rform th|
|00000210| 65 20 74 79 70 65 20 6f | 66 20 6c 6f 63 6b 69 6e |e type o|f lockin|
|00000220| 67 20 73 75 70 70 6f 72 | 74 65 64 20 62 79 20 79 |g suppor|ted by y|
|00000230| 6f 75 72 20 70 61 72 74 | 69 63 75 6c 61 72 0d 0a |our part|icular..|
|00000240| 20 2a 20 73 79 73 74 65 | 6d 2e 20 20 43 6f 64 65 | * syste|m. Code|
|00000250| 20 70 72 6f 76 69 64 65 | 64 20 62 65 6c 6f 77 20 | provide|d below |
|00000260| 69 73 20 66 6f 72 20 44 | 4f 53 20 33 2e 78 20 6c |is for D|OS 3.x l|
|00000270| 6f 63 6b 69 6e 67 20 77 | 69 74 68 20 63 6f 6d 70 |ocking w|ith comp|
|00000280| 69 6c 65 72 20 73 75 70 | 70 6f 72 74 2e 0d 0a 20 |iler sup|port... |
|00000290| 2a 20 44 4f 53 20 33 2e | 78 20 75 73 65 72 73 20 |* DOS 3.|x users |
|000002a0| 6d 75 73 74 20 69 6e 73 | 74 61 6c 6c 20 73 68 61 |must ins|tall sha|
|000002b0| 72 65 2e 65 78 65 20 6f | 72 20 73 68 61 72 65 2e |re.exe o|r share.|
|000002c0| 63 6f 6d 2c 20 6f 72 20 | 6e 65 74 77 6f 72 6b 20 |com, or |network |
|000002d0| 73 6f 66 74 77 61 72 65 | 2e 0d 0a 20 2a 2d 2d 2d |software|... *---|
|000002e0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000002f0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000300| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000310| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000320| 2d 2d 2d 2d 2d 2d 2d 2d | 2a 2f 0d 0a 0d 0a 23 69 |--------|*/....#i|
|00000330| 6e 63 6c 75 64 65 20 22 | 63 62 74 72 65 65 2e 68 |nclude "|cbtree.h|
|00000340| 22 0d 0a 0d 0a 23 69 66 | 20 58 45 4e 49 58 0d 0a |"....#if| XENIX..|
|00000350| 2f 2a 20 23 69 6e 63 6c | 75 64 65 20 3c 73 79 73 |/* #incl|ude <sys|
|00000360| 2f 6c 6f 63 6b 69 6e 67 | 2e 68 3e 20 2a 2f 0d 0a |/locking|.h> */..|
|00000370| 23 65 6e 64 69 66 0d 0a | 0d 0a 23 64 65 66 69 6e |#endif..|..#defin|
|00000380| 65 20 4c 4b 5f 4e 42 4c | 43 4b 20 32 0d 0a 23 64 |e LK_NBL|CK 2..#d|
|00000390| 65 66 69 6e 65 20 4c 4b | 5f 55 4e 4c 43 4b 20 30 |efine LK|_UNLCK 0|
|000003a0| 0d 0a 0d 0a 23 64 65 66 | 69 6e 65 20 4c 43 4b 54 |....#def|ine LCKT|
|000003b0| 52 59 53 20 38 30 30 0d | 0a 23 64 65 66 69 6e 65 |RYS 800.|.#define|
|000003c0| 20 4c 4f 43 4b 4f 4b 20 | 31 0d 0a 23 64 65 66 69 | LOCKOK |1..#defi|
|000003d0| 6e 65 20 42 55 53 59 20 | 30 0d 0a 0d 0a 09 09 20 |ne BUSY |0...... |
|000003e0| 20 2f 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a | /******|********|
|000003f0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000400| 2a 2a 2a 2a 2a 2a 2a 2a | 2f 0d 0a 23 69 66 20 31 |********|/..#if 1|
|00000410| 20 09 20 2f 2a 20 63 68 | 61 6e 67 65 20 74 68 69 | . /* ch|ange thi|
|00000420| 73 20 74 6f 20 30 20 74 | 6f 20 65 6e 61 62 6c 65 |s to 0 t|o enable|
|00000430| 20 6c 6f 63 6b 69 6e 67 | 20 2a 2f 0d 0a 09 09 2f | locking| */..../|
|00000440| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000450| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000460| 2a 2a 2a 2a 2a 2a 2f 0d | 0a 0d 0a 09 2f 2a 20 64 |******/.|..../* d|
|00000470| 75 6d 6d 79 20 73 74 75 | 62 20 2a 2f 0d 0a 6c 6f |ummy stu|b */..lo|
|00000480| 63 6b 75 6e 6c 6b 28 29 | 20 2f 2a 20 66 64 3a 20 |ckunlk()| /* fd: |
|00000490| 66 69 6c 65 20 64 65 73 | 63 2e 3b 20 70 6f 73 3a |file des|c.; pos:|
|000004a0| 20 72 65 6c 61 74 69 76 | 65 20 62 79 74 65 20 6c | relativ|e byte l|
|000004b0| 6f 63 61 74 69 6f 6e 3b | 20 2a 2f 0d 0a 7b 0d 0a |ocation;| */..{..|
|000004c0| 09 72 65 74 75 72 6e 28 | 4c 4f 43 4b 4f 4b 29 3b |.return(|LOCKOK);|
|000004d0| 0d 0a 7d 0d 0a 0d 0a 23 | 65 6c 73 65 20 20 20 2f |..}....#|else /|
|000004e0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000004f0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000500| 2a 2a 2a 2a 2a 2a 2f 0d | 0a 0d 0a 6c 6f 63 6b 75 |******/.|...locku|
|00000510| 6e 6c 6b 28 66 64 2c 20 | 70 6f 73 2c 20 6c 65 6e |nlk(fd, |pos, len|
|00000520| 2c 20 6d 6f 64 65 29 20 | 2f 2a 20 66 64 3a 20 66 |, mode) |/* fd: f|
|00000530| 69 6c 65 20 64 65 73 63 | 2e 3b 20 70 6f 73 3a 20 |ile desc|.; pos: |
|00000540| 72 65 6c 61 74 69 76 65 | 20 62 79 74 65 20 6c 6f |relative| byte lo|
|00000550| 63 61 74 69 6f 6e 3b 20 | 2a 2f 0d 0a 69 6e 74 20 |cation; |*/..int |
|00000560| 66 64 3b 0d 0a 6c 6f 6e | 67 20 70 6f 73 3b 0d 0a |fd;..lon|g pos;..|
|00000570| 69 6e 74 20 6c 65 6e 3b | 09 09 09 09 09 2f 2a 20 |int len;|...../* |
|00000580| 23 20 62 79 74 65 73 20 | 69 6e 20 6c 6f 63 6b 20 |# bytes |in lock |
|00000590| 72 65 67 69 6f 6e 20 2a | 2f 0d 0a 69 6e 74 20 6d |region *|/..int m|
|000005a0| 6f 64 65 3b 09 09 09 09 | 09 2f 2a 20 72 65 61 64 |ode;....|./* read|
|000005b0| 20 6f 72 20 77 72 69 74 | 65 20 6c 6f 63 6b 20 2a | or writ|e lock *|
|000005c0| 2f 0d 0a 7b 0d 0a 09 69 | 6e 74 20 6c 6f 63 6b 63 |/..{...i|nt lockc|
|000005d0| 6e 74 20 3d 20 30 2c 20 | 6c 6b 72 65 74 3b 0d 0a |nt = 0, |lkret;..|
|000005e0| 09 6c 6f 6e 67 20 6c 73 | 65 65 6b 28 29 3b 0d 0a |.long ls|eek();..|
|000005f0| 0d 0a 09 69 66 20 28 6c | 73 65 65 6b 28 66 64 2c |...if (l|seek(fd,|
|00000600| 20 70 6f 73 2c 20 30 29 | 20 3d 3d 20 2d 31 4c 29 | pos, 0)| == -1L)|
|00000610| 0d 0a 09 09 63 6b 65 72 | 72 6f 72 28 2d 20 43 4b |....cker|ror(- CK|
|00000620| 5f 53 45 45 4b 2c 20 22 | 38 32 22 29 3b 0d 0a 0d |_SEEK, "|82");...|
|00000630| 0a 09 69 66 20 28 6d 6f | 64 65 20 3d 3d 20 55 4e |..if (mo|de == UN|
|00000640| 4c 4f 43 4b 52 29 20 09 | 09 2f 2a 20 54 55 52 42 |LOCKR) .|./* TURB|
|00000650| 4f 20 43 20 75 73 65 20 | 75 6e 6c 6f 63 6b 28 29 |O C use |unlock()|
|00000660| 20 69 6e 20 70 6c 61 63 | 65 20 6f 66 20 6c 6f 63 | in plac|e of loc|
|00000670| 6b 69 6e 67 2e 20 2a 2f | 0d 0a 09 09 6c 6b 72 65 |king. */|....lkre|
|00000680| 74 20 3d 20 6c 6f 63 6b | 69 6e 67 28 66 64 2c 20 |t = lock|ing(fd, |
|00000690| 4c 4b 5f 55 4e 4c 43 4b | 2c 20 28 6c 6f 6e 67 29 |LK_UNLCK|, (long)|
|000006a0| 20 6c 65 6e 29 3b 20 20 | 20 2f 2a 20 58 45 4e 49 | len); | /* XENI|
|000006b0| 58 20 73 74 79 6c 65 20 | 63 61 6c 6c 20 2a 2f 0d |X style |call */.|
|000006c0| 0a 09 65 6c 73 65 7b 0d | 0a 20 20 20 20 09 77 68 |..else{.|. .wh|
|000006d0| 69 6c 65 28 2b 2b 6c 6f | 63 6b 63 6e 74 20 3c 20 |ile(++lo|ckcnt < |
|000006e0| 4c 43 4b 54 52 59 53 29 | 09 2f 2a 20 54 55 52 42 |LCKTRYS)|./* TURB|
|000006f0| 4f 20 43 20 75 73 65 20 | 6c 6f 63 6b 28 29 20 69 |O C use |lock() i|
|00000700| 6e 20 70 6c 61 63 65 20 | 6f 66 20 6c 6f 63 6b 69 |n place |of locki|
|00000710| 6e 67 2e 2a 2f 0d 0a 09 | 09 09 69 66 28 28 6c 6b |ng.*/...|..if((lk|
|00000720| 72 65 74 20 3d 20 6c 6f | 63 6b 69 6e 67 28 66 64 |ret = lo|cking(fd|
|00000730| 2c 20 4c 4b 5f 4e 42 4c | 43 4b 2c 20 28 6c 6f 6e |, LK_NBL|CK, (lon|
|00000740| 67 29 20 6c 65 6e 29 29 | 20 3d 3d 20 30 29 20 20 |g) len))| == 0) |
|00000750| 20 2f 2a 20 58 45 4e 49 | 58 20 73 74 79 6c 65 20 | /* XENI|X style |
|00000760| 63 61 6c 6c 20 2a 2f 0d | 0a 09 09 09 09 72 65 74 |call */.|.....ret|
|00000770| 75 72 6e 28 4c 4f 43 4b | 4f 4b 29 3b 0d 0a 09 09 |urn(LOCK|OK);....|
|00000780| 09 65 6c 73 65 0d 0a 20 | 20 20 20 20 20 20 20 20 |.else.. | |
|00000790| 09 09 64 65 6c 61 79 28 | 31 4c 29 3b 0d 0a 0d 0a |..delay(|1L);....|
|000007a0| 09 09 09 2f 2a 20 74 6f | 74 61 6c 20 64 65 6c 61 |.../* to|tal dela|
|000007b0| 79 20 3d 20 4c 43 4b 54 | 52 59 53 20 2a 20 64 65 |y = LCKT|RYS * de|
|000007c0| 6c 61 79 3b 20 28 38 30 | 30 20 2a 20 30 2e 30 31 |lay; (80|0 * 0.01|
|000007d0| 20 3d 20 38 20 73 65 63 | 6f 6e 64 73 2e 29 20 2a | = 8 sec|onds.) *|
|000007e0| 2f 0d 0a 0d 0a 09 09 72 | 65 74 75 72 6e 28 42 55 |/......r|eturn(BU|
|000007f0| 53 59 29 3b 0d 0a 09 7d | 0d 0a 7d 0d 0a 0d 0a 23 |SY);...}|..}....#|
|00000800| 65 6e 64 69 66 09 2f 2a | 2a 2a 2a 2a 2a 2a 2a 2a |endif./*|********|
|00000810| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000820| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2f 0d 0a |********|*****/..|
|00000830| 0d 0a | |.. | |
+--------+-------------------------+-------------------------+--------+--------+
