Source Code 1994 March

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Tape Archive | 1989-03-04 | 16.0 KB
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MacOS 8.1 extracted |
Win98 extracted |
DOS extracted
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This file was processed as: Tape Archive (archive/tar).

You can browse this item here: dbcopy.tar
Confidence	Program	Detection	Match Type	Support
`100%`	dexvert	Tape Archive `(archive/tar)`	magic	Supported
`100%`	file	tar archive	default
`99%`	file	tar archive (V7), file dbcopy/, mode 755 , uid 243 , gid 12 , size 0 , seconds 4404077331	default
`98%`	file	data	default
`100%`	TrID	Sybase iAnywhere database files	default (weak)
`100%`	lsar	Tar	default
`100%`	gt2	TAR Archiv gefunden (Auflistung ist deaktiviert)	default
`100%`	disktype	Pre-POSIX tar archive	default
hex view
+--------+-------------------------+-------------------------+--------+--------+
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|00000e40| 20 70 69 70 65 20 67 6f | 69 6e 67 20 74 6f 20 74 | pipe go|ing to t|
|00000e50| 68 65 20 6f 74 68 65 72 | 20 70 72 6f 63 65 73 73 |he other| process|
|00000e60| 2c 20 61 6e 64 20 22 6d | 79 6c 6f 63 6b 22 20 69 |, and "m|ylock" i|
|00000e70| 73 20 74 68 65 20 72 65 | 61 64 0a 20 2a 20 64 65 |s the re|ad. * de|
|00000e80| 73 63 72 69 70 74 6f 72 | 20 6f 66 20 74 68 65 20 |scriptor| of the |
|00000e90| 70 69 70 65 20 62 65 69 | 6e 67 20 72 65 61 64 20 |pipe bei|ng read |
|00000ea0| 62 79 20 74 68 69 73 20 | 70 72 6f 63 65 73 73 2e |by this |process.|
|00000eb0| 0a 20 2a 2f 0a 65 6e 75 | 6d 20 73 74 61 74 75 73 |. */.enu|m status|
|00000ec0| 20 7b 20 53 5f 4f 4b 2c | 20 53 5f 45 4f 46 2c 20 | { S_OK,| S_EOF, |
|00000ed0| 53 5f 45 52 52 2c 20 53 | 5f 54 4d 20 7d 3b 0a 65 |S_ERR, S|_TM };.e|
|00000ee0| 6e 75 6d 20 73 74 61 74 | 75 73 20 77 61 69 74 66 |num stat|us waitf|
|00000ef0| 6f 72 28 29 3b 0a 69 6e | 74 20 6d 79 6c 6f 63 6b |or();.in|t mylock|
|00000f00| 2c 20 68 69 73 6c 6f 63 | 6b 3b 0a 69 6e 74 20 63 |, hisloc|k;.int c|
|00000f10| 68 69 6c 64 70 69 64 20 | 3d 20 30 3b 0a 0a 2f 2a |hildpid |= 0;../*|
|00000f20| 20 70 69 70 65 20 75 6e | 69 74 73 20 2a 2f 0a 23 | pipe un|its */.#|
|00000f30| 64 65 66 69 6e 65 09 52 | 44 09 30 0a 23 64 65 66 |define.R|D.0.#def|
|00000f40| 69 6e 65 09 57 52 09 31 | 0a 0a 6d 61 69 6e 28 61 |ine.WR.1|..main(a|
|00000f50| 72 67 63 2c 20 61 72 67 | 76 29 0a 63 68 61 72 20 |rgc, arg|v).char |
|00000f60| 2a 2a 61 72 67 76 3b 0a | 7b 0a 09 69 6e 74 20 6f |**argv;.|{..int o|
|00000f70| 75 74 70 75 74 2c 20 69 | 6e 70 75 74 3b 0a 09 6f |utput, i|nput;..o|
|00000f80| 66 66 5f 74 20 6f 66 66 | 73 65 74 2c 20 6e 77 61 |ff_t off|set, nwa|
|00000f90| 6e 74 2c 20 6e 67 6f 74 | 2c 20 76 3b 0a 09 63 68 |nt, ngot|, v;..ch|
|00000fa0| 61 72 20 2a 62 75 66 66 | 65 72 2c 20 2a 6d 61 6c |ar *buff|er, *mal|
|00000fb0| 6c 6f 63 28 29 3b 0a 09 | 69 6e 74 20 74 6f 70 61 |loc();..|int topa|
|00000fc0| 72 65 6e 74 5b 32 5d 2c | 20 74 6f 63 68 69 6c 64 |rent[2],| tochild|
|00000fd0| 5b 32 5d 3b 0a 09 69 6e | 74 20 64 6f 6e 74 77 61 |[2];..in|t dontwa|
|00000fe0| 69 74 3b 0a 09 69 6e 74 | 20 69 73 74 61 70 65 20 |it;..int| istape |
|00000ff0| 3d 20 30 2c 20 62 6c 6f | 63 6b 6e 6f 20 3d 20 30 |= 0, blo|ckno = 0|
|00001000| 2c 20 74 66 6e 6f 20 3d | 20 31 2c 20 6f 66 66 6c |, tfno =| 1, offl|
|00001010| 69 6e 65 20 3d 20 31 3b | 0a 09 69 6e 74 20 76 65 |ine = 1;|..int ve|
|00001020| 72 62 6f 73 65 20 3d 20 | 30 3b 0a 0a 09 66 6f 72 |rbose = |0;...for|
|00001030| 20 28 2d 2d 61 72 67 63 | 2c 2b 2b 61 72 67 76 3b | (--argc|,++argv;|
|00001040| 20 61 72 67 63 20 3e 20 | 31 20 26 26 20 61 72 67 | argc > |1 && arg|
|00001050| 76 5b 30 5d 5b 30 5d 20 | 3d 3d 20 27 2d 27 3b 20 |v[0][0] |== '-'; |
|00001060| 29 20 7b 0a 09 09 73 77 | 69 74 63 68 20 28 61 72 |) {...sw|itch (ar|
|00001070| 67 76 5b 30 5d 5b 31 5d | 29 20 7b 0a 09 09 63 61 |gv[0][1]|) {...ca|
|00001080| 73 65 20 27 74 27 3a 0a | 09 09 09 69 73 74 61 70 |se 't':.|...istap|
|00001090| 65 2b 2b 3b 0a 09 09 09 | 61 72 67 63 2d 2d 3b 20 |e++;....|argc--; |
|000010a0| 61 72 67 76 2b 2b 3b 0a | 09 09 09 63 6f 6e 74 69 |argv++;.|...conti|
|000010b0| 6e 75 65 3b 0a 09 09 63 | 61 73 65 20 27 6f 27 3a |nue;...c|ase 'o':|
|000010c0| 0a 09 09 09 6f 66 66 6c | 69 6e 65 20 3d 20 30 3b |....offl|ine = 0;|
|000010d0| 0a 09 09 09 61 72 67 63 | 2d 2d 3b 20 61 72 67 76 |....argc|--; argv|
|000010e0| 2b 2b 3b 0a 09 09 09 63 | 6f 6e 74 69 6e 75 65 3b |++;....c|ontinue;|
|000010f0| 0a 09 09 63 61 73 65 20 | 27 76 27 3a 0a 09 09 09 |...case |'v':....|
|00001100| 76 65 72 62 6f 73 65 20 | 3d 20 31 3b 0a 09 09 09 |verbose |= 1;....|
|00001110| 61 72 67 63 2d 2d 3b 20 | 61 72 67 76 2b 2b 3b 0a |argc--; |argv++;.|
|00001120| 09 09 09 63 6f 6e 74 69 | 6e 75 65 3b 0a 09 09 7d |...conti|nue;...}|
|00001130| 0a 0a 09 09 69 66 20 28 | 61 72 67 63 20 3c 20 32 |....if (|argc < 2|
|00001140| 29 20 7b 0a 09 09 09 66 | 70 72 69 6e 74 66 28 73 |) {....f|printf(s|
|00001150| 74 64 65 72 72 2c 20 22 | 64 62 63 6f 70 79 3a 20 |tderr, "|dbcopy: |
|00001160| 6d 69 73 73 69 6e 67 20 | 76 61 6c 75 65 20 61 66 |missing |value af|
|00001170| 74 65 72 20 25 73 5c 6e | 22 2c 0a 09 09 09 09 61 |ter %s\n|",.....a|
|00001180| 72 67 76 5b 30 5d 29 3b | 0a 09 09 09 65 78 69 74 |rgv[0]);|....exit|
|00001190| 28 32 29 3b 0a 09 09 7d | 0a 09 09 69 66 20 28 28 |(2);...}|...if ((|
|000011a0| 76 20 3d 20 61 74 6f 69 | 28 61 72 67 76 5b 31 5d |v = atoi|(argv[1]|
|000011b0| 29 29 20 3c 3d 20 30 29 | 20 7b 0a 09 09 09 66 70 |)) <= 0)| {....fp|
|000011c0| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 64 |rintf(st|derr, "d|
|000011d0| 62 63 6f 70 79 3a 20 62 | 61 64 20 70 61 72 61 6d |bcopy: b|ad param|
|000011e0| 65 74 65 72 20 25 73 5c | 6e 22 2c 20 61 72 67 76 |eter %s\|n", argv|
|000011f0| 5b 31 5d 29 3b 0a 09 09 | 09 65 78 69 74 28 32 29 |[1]);...|.exit(2)|
|00001200| 3b 0a 09 09 7d 0a 0a 09 | 09 73 77 69 74 63 68 20 |;...}...|.switch |
|00001210| 28 61 72 67 76 5b 30 5d | 5b 31 5d 29 20 7b 0a 0a |(argv[0]|[1]) {..|
|00001220| 09 09 09 2f 2a 20 62 75 | 66 66 65 72 20 73 69 7a |.../* bu|ffer siz|
|00001230| 65 20 69 6e 20 62 79 74 | 65 73 20 2a 2f 0a 09 09 |e in byt|es */...|
|00001240| 63 61 73 65 20 27 62 27 | 3a 0a 09 09 09 62 75 66 |case 'b'|:....buf|
|00001250| 73 69 7a 65 20 3d 20 76 | 3b 0a 09 09 09 73 65 74 |size = v|;....set|
|00001260| 73 69 7a 65 20 3d 20 31 | 3b 0a 09 09 09 62 72 65 |size = 1|;....bre|
|00001270| 61 6b 3b 0a 0a 09 09 09 | 2f 2a 20 74 6f 74 61 6c |ak;.....|/* total|
|00001280| 20 6c 65 6e 67 74 68 20 | 74 6f 20 63 6f 70 79 20 | length |to copy |
|00001290| 69 6e 20 62 79 74 65 73 | 20 2a 2f 0a 09 09 63 61 |in bytes| */...ca|
|000012a0| 73 65 20 27 6c 27 3a 0a | 09 09 09 6e 62 79 74 65 |se 'l':.|...nbyte|
|000012b0| 73 20 3d 20 76 3b 0a 09 | 09 09 75 6e 74 69 6c 65 |s = v;..|..untile|
|000012c0| 6f 66 20 3d 20 30 3b 0a | 09 09 09 62 72 65 61 6b |of = 0;.|...break|
|000012d0| 3b 0a 0a 09 09 09 2f 2a | 20 74 6f 74 61 6c 20 6c |;...../*| total l|
|000012e0| 65 6e 67 74 68 20 74 6f | 20 63 6f 70 79 20 69 6e |ength to| copy in|
|000012f0| 20 75 6e 69 74 73 20 6f | 66 20 74 68 65 20 62 75 | units o|f the bu|
|00001300| 66 66 65 72 20 73 69 7a | 65 20 2a 2f 0a 09 09 63 |ffer siz|e */...c|
|00001310| 61 73 65 20 27 63 27 3a | 0a 09 09 09 6e 72 65 63 |ase 'c':|....nrec|
|00001320| 20 3d 20 76 3b 0a 09 09 | 09 75 6e 74 69 6c 65 6f | = v;...|.untileo|
|00001330| 66 20 3d 20 30 3b 0a 09 | 09 09 62 72 65 61 6b 3b |f = 0;..|..break;|
|00001340| 0a 0a 09 09 64 65 66 61 | 75 6c 74 3a 0a 09 09 09 |....defa|ult:....|
|00001350| 66 70 72 69 6e 74 66 28 | 73 74 64 65 72 72 2c 20 |fprintf(|stderr, |
|00001360| 22 64 62 63 6f 70 79 3a | 20 6f 70 74 69 6f 6e 20 |"dbcopy:| option |
|00001370| 25 63 3f 5c 6e 22 2c 20 | 61 72 67 76 5b 30 5d 5b |%c?\n", |argv[0][|
|00001380| 31 5d 29 3b 0a 09 09 09 | 65 78 69 74 28 31 29 3b |1]);....|exit(1);|
|00001390| 0a 09 09 7d 0a 09 09 61 | 72 67 63 20 2d 3d 20 32 |...}...a|rgc -= 2|
|000013a0| 2c 20 61 72 67 76 20 2b | 3d 20 32 3b 0a 09 7d 0a |, argv +|= 2;..}.|
|000013b0| 0a 09 69 66 20 28 61 72 | 67 63 20 21 3d 20 32 29 |..if (ar|gc != 2)|
|000013c0| 20 7b 0a 09 09 66 70 72 | 69 6e 74 66 28 73 74 64 | {...fpr|intf(std|
|000013d0| 65 72 72 2c 20 22 55 73 | 61 67 65 3a 20 64 62 63 |err, "Us|age: dbc|
|000013e0| 6f 70 79 20 5b 2d 6f 5d | 20 5b 2d 76 5d 20 5b 2d |opy [-o]| [-v] [-|
|000013f0| 74 5d 20 5b 2d 62 20 62 | 75 66 73 69 7a 65 5d 20 |t] [-b b|ufsize] |
|00001400| 5b 2d 6c 20 6c 65 6e 67 | 74 68 5d 20 5b 2d 63 20 |[-l leng|th] [-c |
|00001410| 63 6f 75 6e 74 5d 20 69 | 6e 70 75 74 20 6f 75 74 |count] i|nput out|
|00001420| 70 75 74 5c 6e 22 29 3b | 0a 09 09 65 78 69 74 28 |put\n");|...exit(|
|00001430| 32 29 3b 0a 09 7d 0a 09 | 69 66 20 28 6e 62 79 74 |2);..}..|if (nbyt|
|00001440| 65 73 20 3d 3d 20 30 20 | 26 26 20 6e 72 65 63 20 |es == 0 |&& nrec |
|00001450| 21 3d 20 30 29 0a 09 09 | 6e 62 79 74 65 73 20 3d |!= 0)...|nbytes =|
|00001460| 20 6e 72 65 63 20 2a 20 | 62 75 66 73 69 7a 65 3b | nrec * |bufsize;|
|00001470| 0a 09 69 66 20 28 69 73 | 74 61 70 65 29 7b 0a 09 |..if (is|tape){..|
|00001480| 09 69 66 28 20 75 6e 74 | 69 6c 65 6f 66 20 3d 3d |.if( unt|ileof ==|
|00001490| 20 30 29 20 7b 0a 09 09 | 09 66 70 72 69 6e 74 66 | 0) {...|.fprintf|
|000014a0| 28 73 74 64 65 72 72 2c | 20 22 64 62 63 6f 70 79 |(stderr,| "dbcopy|
|000014b0| 3a 20 43 61 6e 27 74 20 | 79 65 74 20 63 6f 70 79 |: Can't |yet copy|
|000014c0| 20 61 6e 79 74 68 69 6e | 67 20 62 75 74 20 77 68 | anythin|g but wh|
|000014d0| 6f 6c 65 20 74 61 70 65 | 5c 6e 22 29 3b 0a 09 09 |ole tape|\n");...|
|000014e0| 09 65 78 69 74 28 32 29 | 3b 0a 09 09 7d 0a 09 09 |.exit(2)|;...}...|
|000014f0| 69 66 28 73 65 74 73 69 | 7a 65 29 20 2b 2b 62 75 |if(setsi|ze) ++bu|
|00001500| 66 73 69 7a 65 3b 09 2f | 2a 20 2b 31 20 66 6f 72 |fsize;./|* +1 for|
|00001510| 20 6f 76 65 72 66 6c 6f | 77 20 63 68 65 63 6b 20 | overflo|w check |
|00001520| 2a 2f 0a 09 09 65 6c 73 | 65 20 62 75 66 73 69 7a |*/...els|e bufsiz|
|00001530| 65 3d 30 78 37 46 46 31 | 3b 09 2f 2a 20 33 32 6b |e=0x7FF1|;./* 32k|
|00001540| 20 6c 65 73 73 20 6d 61 | 6c 6c 6f 63 27 73 20 6f | less ma|lloc's o|
|00001550| 76 65 72 68 65 61 64 20 | 61 6e 64 20 31 20 66 6f |verhead |and 1 fo|
|00001560| 72 20 63 68 65 63 6b 20 | 2a 2f 0a 09 7d 0a 0a 09 |r check |*/..}...|
|00001570| 69 6e 70 75 74 20 3d 20 | 73 65 74 75 70 28 61 72 |input = |setup(ar|
|00001580| 67 76 5b 30 5d 2c 20 30 | 29 3b 0a 09 6f 75 74 70 |gv[0], 0|);..outp|
|00001590| 75 74 20 3d 20 73 65 74 | 75 70 28 61 72 67 76 5b |ut = set|up(argv[|
|000015a0| 31 5d 2c 20 31 29 3b 0a | 09 0a 09 69 66 20 28 70 |1], 1);.|...if (p|
|000015b0| 69 70 65 28 74 6f 70 61 | 72 65 6e 74 29 20 7c 7c |ipe(topa|rent) |||
|000015c0| 20 70 69 70 65 28 74 6f | 63 68 69 6c 64 29 29 20 | pipe(to|child)) |
|000015d0| 7b 0a 09 09 66 70 72 69 | 6e 74 66 28 73 74 64 65 |{...fpri|ntf(stde|
|000015e0| 72 72 2c 20 22 64 62 63 | 6f 70 79 3a 20 63 61 6e |rr, "dbc|opy: can|
|000015f0| 6e 6f 74 20 63 72 65 61 | 74 65 20 70 69 70 65 73 |not crea|te pipes|
|00001600| 5c 6e 22 29 3b 0a 09 09 | 65 78 69 74 28 31 29 3b |\n");...|exit(1);|
|00001610| 0a 09 7d 0a 0a 09 73 77 | 69 74 63 68 28 63 68 69 |..}...sw|itch(chi|
|00001620| 6c 64 70 69 64 20 3d 20 | 66 6f 72 6b 28 29 29 20 |ldpid = |fork()) |
|00001630| 7b 0a 0a 09 63 61 73 65 | 20 30 3a 09 09 09 2f 2a |{...case| 0:.../*|
|00001640| 20 63 68 69 6c 64 20 2a | 2f 0a 09 09 6f 66 66 73 | child *|/...offs|
|00001650| 65 74 20 3d 20 62 75 66 | 73 69 7a 65 3b 0a 09 09 |et = buf|size;...|
|00001660| 62 6c 6f 63 6b 6e 6f 20 | 3d 20 31 3b 0a 09 09 6d |blockno |= 1;...m|
|00001670| 79 6c 6f 63 6b 20 3d 20 | 74 6f 63 68 69 6c 64 5b |ylock = |tochild[|
|00001680| 52 44 5d 3b 0a 09 09 68 | 69 73 6c 6f 63 6b 20 3d |RD];...h|islock =|
|00001690| 20 74 6f 70 61 72 65 6e | 74 5b 57 52 5d 3b 0a 09 | toparen|t[WR];..|
|000016a0| 09 2f 2a 0a 09 09 20 2a | 20 57 65 20 64 6f 6e 27 |./*... *| We don'|
|000016b0| 74 20 63 6c 6f 73 65 20 | 74 68 65 20 70 69 70 65 |t close |the pipe|
|000016c0| 20 64 65 73 63 72 69 70 | 74 6f 72 73 20 77 68 69 | descrip|tors whi|
|000016d0| 63 68 20 61 72 65 20 75 | 6e 75 73 65 64 0a 09 09 |ch are u|nused...|
|000016e0| 20 2a 20 69 6e 20 65 61 | 63 68 20 70 72 6f 63 65 | * in ea|ch proce|
|000016f0| 73 73 2e 20 20 54 68 69 | 73 20 70 72 65 76 65 6e |ss.  Thi|s preven|
|00001700| 74 73 20 67 65 74 74 69 | 6e 67 20 22 70 69 70 65 |ts getti|ng "pipe|
|00001710| 20 62 72 6f 6b 65 6e 22 | 0a 09 09 20 2a 20 73 69 | broken"|... * si|
|00001720| 67 6e 61 6c 73 20 69 66 | 20 77 65 20 72 65 6c 65 |gnals if| we rele|
|00001730| 61 73 65 20 61 20 6c 6f | 63 6b 20 61 6e 64 20 74 |ase a lo|ck and t|
|00001740| 68 65 20 6f 74 68 65 72 | 20 70 72 6f 63 65 73 73 |he other| process|
|00001750| 20 68 61 73 0a 09 09 20 | 2a 20 61 6c 72 65 61 64 | has... |* alread|
|00001760| 79 20 65 78 69 74 65 64 | 2e 0a 09 09 20 2a 2f 0a |y exited|.... */.|
|00001770| 09 09 64 6f 6e 74 77 61 | 69 74 20 3d 20 30 3b 0a |..dontwa|it = 0;.|
|00001780| 09 09 62 72 65 61 6b 3b | 0a 0a 09 64 65 66 61 75 |..break;|...defau|
|00001790| 6c 74 3a 09 09 2f 2a 20 | 70 61 72 65 6e 74 20 2a |lt:../* |parent *|
|000017a0| 2f 0a 09 09 6f 66 66 73 | 65 74 20 3d 20 30 3b 0a |/...offs|et = 0;.|
|000017b0| 09 09 62 6c 6f 63 6b 6e | 6f 20 3d 20 30 3b 0a 09 |..blockn|o = 0;..|
|000017c0| 09 6d 79 6c 6f 63 6b 20 | 3d 20 74 6f 70 61 72 65 |.mylock |= topare|
|000017d0| 6e 74 5b 52 44 5d 3b 0a | 09 09 68 69 73 6c 6f 63 |nt[RD];.|..hisloc|
|000017e0| 6b 20 3d 20 74 6f 63 68 | 69 6c 64 5b 57 52 5d 3b |k = toch|ild[WR];|
|000017f0| 0a 09 09 64 6f 6e 74 77 | 61 69 74 20 3d 20 31 3b |...dontw|ait = 1;|
|00001800| 0a 09 09 62 72 65 61 6b | 3b 0a 09 0a 09 63 61 73 |...break|;....cas|
|00001810| 65 20 2d 31 3a 0a 09 09 | 66 70 72 69 6e 74 66 28 |e -1:...|fprintf(|
|00001820| 73 74 64 65 72 72 2c 20 | 22 64 62 63 6f 70 79 3a |stderr, |"dbcopy:|
|00001830| 20 63 61 6e 6e 6f 74 20 | 66 6f 72 6b 5c 6e 22 29 | cannot |fork\n")|
|00001840| 3b 0a 09 09 65 78 69 74 | 28 33 29 3b 0a 09 7d 0a |;...exit|(3);..}.|
|00001850| 0a 0a 09 2f 2a 20 61 6c | 6c 6f 63 61 74 65 20 62 |.../* al|locate b|
|00001860| 75 66 66 65 72 20 61 66 | 74 65 72 20 66 6f 72 6b |uffer af|ter fork|
|00001870| 20 74 6f 20 61 76 6f 69 | 64 20 63 6f 70 79 69 6e | to avoi|d copyin|
|00001880| 67 20 69 74 20 64 75 72 | 69 6e 67 20 66 6f 72 6b |g it dur|ing fork|
|00001890| 20 2a 2f 0a 09 69 66 20 | 28 28 62 75 66 66 65 72 | */..if |((buffer|
|000018a0| 20 3d 20 6d 61 6c 6c 6f | 63 28 62 75 66 73 69 7a | = mallo|c(bufsiz|
|000018b0| 65 29 29 20 3d 3d 20 4e | 55 4c 4c 29 20 7b 0a 09 |e)) == N|ULL) {..|
|000018c0| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|000018d0| 20 22 64 62 63 6f 70 79 | 3a 20 63 61 6e 6e 6f 74 | "dbcopy|: cannot|
|000018e0| 20 67 65 74 20 62 75 66 | 66 65 72 5c 6e 22 29 3b | get buf|fer\n");|
|000018f0| 0a 09 09 78 78 69 74 28 | 31 29 3b 0a 09 7d 0a 09 |...xxit(|1);..}..|
|00001900| 69 66 28 69 73 74 61 70 | 65 29 20 2d 2d 62 75 66 |if(istap|e) --buf|
|00001910| 73 69 7a 65 3b 20 2f 2a | 20 66 6f 72 20 6f 76 65 |size; /*| for ove|
|00001920| 72 66 6c 6f 77 20 63 68 | 65 63 6b 69 6e 67 20 2a |rflow ch|ecking *|
|00001930| 2f 0a 0a 09 77 68 69 6c | 65 20 28 75 6e 74 69 6c |/...whil|e (until|
|00001940| 65 6f 66 20 7c 7c 20 6f | 66 66 73 65 74 20 3c 20 |eof || o|ffset < |
|00001950| 6e 62 79 74 65 73 29 20 | 7b 0a 09 09 65 6e 75 6d |nbytes) |{...enum|
|00001960| 20 73 74 61 74 75 73 20 | 73 74 61 74 75 73 3b 0a | status |status;.|
|00001970| 0a 09 09 69 66 20 28 75 | 6e 74 69 6c 65 6f 66 20 |...if (u|ntileof |
|00001980| 7c 7c 20 6e 62 79 74 65 | 73 2d 6f 66 66 73 65 74 ||| nbyte|s-offset|
|00001990| 20 3e 20 62 75 66 73 69 | 7a 65 29 0a 09 09 09 6e | > bufsi|ze)....n|
|000019a0| 77 61 6e 74 20 3d 20 62 | 75 66 73 69 7a 65 3b 0a |want = b|ufsize;.|
|000019b0| 09 09 65 6c 73 65 0a 09 | 09 09 6e 77 61 6e 74 20 |..else..|..nwant |
|000019c0| 3d 20 6e 62 79 74 65 73 | 2d 6f 66 66 73 65 74 3b |= nbytes|-offset;|
|000019d0| 0a 09 09 69 66 20 28 21 | 64 6f 6e 74 77 61 69 74 |...if (!|dontwait|
|000019e0| 29 0a 09 09 09 73 77 69 | 74 63 68 28 73 74 61 74 |)....swi|tch(stat|
|000019f0| 75 73 20 3d 20 77 61 69 | 74 66 6f 72 28 29 29 20 |us = wai|tfor()) |
|00001a00| 7b 0a 09 09 09 63 61 73 | 65 20 53 5f 4f 4b 3a 0a |{....cas|e S_OK:.|
|00001a10| 09 09 09 09 62 72 65 61 | 6b 3b 0a 09 09 09 63 61 |....brea|k;....ca|
|00001a20| 73 65 20 53 5f 54 4d 3a | 0a 09 09 09 09 2b 2b 74 |se S_TM:|.....++t|
|00001a30| 66 6e 6f 3b 0a 09 09 09 | 09 62 6c 6f 63 6b 6e 6f |fno;....|.blockno|
|00001a40| 20 3d 20 30 3b 0a 09 09 | 09 09 62 72 65 61 6b 3b | = 0;...|..break;|
|00001a50| 0a 09 09 09 63 61 73 65 | 20 53 5f 45 52 52 3a 0a |....case| S_ERR:.|
|00001a60| 09 09 09 09 64 6f 6e 65 | 28 20 31 20 29 3b 0a 09 |....done|( 1 );..|
|00001a70| 09 09 63 61 73 65 20 53 | 5f 45 4f 46 3a 0a 09 09 |..case S|_EOF:...|
|00001a80| 09 09 64 6f 6e 65 28 20 | 30 20 29 3b 0a 09 09 09 |..done( |0 );....|
|00001a90| 64 65 66 61 75 6c 74 3a | 0a 09 09 09 09 66 70 72 |default:|.....fpr|
|00001aa0| 69 6e 74 66 28 20 73 74 | 64 65 72 72 2c 20 22 64 |intf( st|derr, "d|
|00001ab0| 62 63 6f 70 79 3a 20 75 | 6e 6b 6e 6f 77 6e 20 73 |bcopy: u|nknown s|
|00001ac0| 74 61 74 75 73 5c 6e 22 | 20 29 3b 0a 09 09 09 09 |tatus\n"| );.....|
|00001ad0| 64 6f 6e 65 28 20 31 20 | 29 3b 0a 09 09 09 7d 0a |done( 1 |);....}.|
|00001ae0| 09 09 2f 2a 0a 09 09 20 | 2a 20 54 68 69 73 20 6c |../*... |* This l|
|00001af0| 73 65 65 6b 20 73 68 6f | 75 6c 64 20 6e 65 76 65 |seek sho|uld neve|
|00001b00| 72 20 62 65 20 6e 65 63 | 65 73 73 61 72 79 20 62 |r be nec|essary b|
|00001b10| 65 63 61 75 73 65 20 6f | 66 0a 09 09 20 2a 20 74 |ecause o|f... * t|
|00001b20| 68 65 20 77 61 79 20 74 | 68 65 20 72 65 61 64 73 |he way t|he reads|
|00001b30| 20 6f 66 20 74 68 65 20 | 74 77 6f 20 70 72 6f 63 | of the |two proc|
|00001b40| 65 73 73 65 73 20 61 72 | 65 20 69 6e 74 65 72 6c |esses ar|e interl|
|00001b50| 6f 63 6b 65 64 2e 0a 09 | 09 20 2a 20 42 75 74 20 |ocked...|. * But |
|00001b60| 69 66 20 73 6f 6d 65 74 | 68 69 6e 67 20 6d 65 73 |if somet|hing mes|
|00001b70| 73 65 73 20 75 70 2c 20 | 74 72 79 20 61 64 64 69 |ses up, |try addi|
|00001b80| 6e 67 20 69 74 2e 0a 09 | 09 20 2a 0a 09 09 20 2a |ng it...|. *... *|
|00001b90| 20 6c 73 65 65 6b 28 69 | 6e 70 75 74 2c 20 6f 66 | lseek(i|nput, of|
|00001ba0| 66 73 65 74 2c 20 30 29 | 3b 0a 09 09 20 2a 2f 0a |fset, 0)|;... */.|
|00001bb0| 09 09 69 66 28 69 73 74 | 61 70 65 29 7b 0a 09 09 |..if(ist|ape){...|
|00001bc0| 09 6e 67 6f 74 3d 72 65 | 61 64 28 69 6e 70 75 74 |.ngot=re|ad(input|
|00001bd0| 2c 62 75 66 66 65 72 2c | 6e 77 61 6e 74 2b 31 29 |,buffer,|nwant+1)|
|00001be0| 3b 0a 09 09 09 69 66 28 | 6e 67 6f 74 3e 6e 77 61 |;....if(|ngot>nwa|
|00001bf0| 6e 74 29 7b 0a 09 09 09 | 09 66 70 72 69 6e 74 66 |nt){....|.fprintf|
|00001c00| 28 73 74 64 65 72 72 2c | 22 54 61 70 65 20 62 6c |(stderr,|"Tape bl|
|00001c10| 6f 63 6b 20 77 61 73 20 | 6d 6f 72 65 20 74 68 61 |ock was |more tha|
|00001c20| 6e 20 25 64 20 62 79 74 | 65 73 2c 5c 6e 22 2c 20 |n %d byt|es,\n", |
|00001c30| 6e 77 61 6e 74 29 3b 0a | 09 09 09 09 66 70 72 69 |nwant);.|....fpri|
|00001c40| 6e 74 66 28 73 74 64 65 | 72 72 2c 22 61 74 20 66 |ntf(stde|rr,"at f|
|00001c50| 69 6c 65 20 25 64 2c 20 | 62 6c 6f 63 6b 20 25 64 |ile %d, |block %d|
|00001c60| 2e 5c 6e 22 2c 20 74 66 | 6e 6f 2c 62 6c 6f 63 6b |.\n", tf|no,block|
|00001c70| 6e 6f 29 3b 0a 09 09 09 | 09 72 65 6c 65 61 73 65 |no);....|.release|
|00001c80| 28 53 5f 45 52 52 29 3b | 0a 09 09 09 09 62 72 65 |(S_ERR);|.....bre|
|00001c90| 61 6b 3b 0a 09 09 09 7d | 0a 09 09 7d 0a 09 09 65 |ak;....}|...}...e|
|00001ca0| 6c 73 65 20 6e 67 6f 74 | 3d 72 65 61 64 28 69 6e |lse ngot|=read(in|
|00001cb0| 70 75 74 2c 62 75 66 66 | 65 72 2c 6e 77 61 6e 74 |put,buff|er,nwant|
|00001cc0| 29 3b 0a 09 09 69 66 28 | 20 28 6e 67 6f 74 3d 3d |);...if(| (ngot==|
|00001cd0| 6e 77 61 6e 74 29 20 7c | 7c 0a 09 09 20 20 20 20 |nwant) |||...    |
|00001ce0| 28 69 73 74 61 70 65 20 | 26 26 20 6e 67 6f 74 20 |(istape |&& ngot |
|00001cf0| 3e 3d 20 30 29 29 0a 09 | 09 09 69 66 28 69 73 74 |>= 0))..|..if(ist|
|00001d00| 61 70 65 20 26 26 20 6e | 67 6f 74 20 3d 3d 20 30 |ape && n|got == 0|
|00001d10| 29 0a 09 09 09 09 69 66 | 28 73 74 61 74 75 73 20 |).....if|(status |
|00001d20| 3d 3d 20 53 5f 54 4d 29 | 20 7b 0a 09 09 09 09 09 |== S_TM)| {......|
|00001d30| 69 66 28 76 65 72 62 6f | 73 65 29 0a 09 09 09 09 |if(verbo|se).....|
|00001d40| 09 09 70 72 69 6e 74 66 | 28 22 25 64 20 66 69 6c |..printf|("%d fil|
|00001d50| 65 73 5c 6e 22 2c 20 74 | 66 6e 6f 2d 31 29 3b 0a |es\n", t|fno-1);.|
|00001d60| 09 09 09 09 09 72 65 6c | 65 61 73 65 28 53 5f 45 |.....rel|ease(S_E|
|00001d70| 4f 46 29 3b 0a 09 09 09 | 09 7d 20 65 6c 73 65 20 |OF);....|.} else |
|00001d80| 7b 0a 09 09 09 09 09 69 | 66 28 76 65 72 62 6f 73 |{......i|f(verbos|
|00001d90| 65 29 0a 09 09 09 09 09 | 09 70 72 69 6e 74 66 28 |e)......|.printf(|
|00001da0| 22 66 69 6c 65 20 25 64 | 2c 20 25 64 20 62 6c 6f |"file %d|, %d blo|
|00001db0| 63 6b 73 5c 6e 22 2c 0a | 09 09 09 09 09 09 09 74 |cks\n",.|.......t|
|00001dc0| 66 6e 6f 2c 20 62 6c 6f | 63 6b 6e 6f 29 3b 0a 09 |fno, blo|ckno);..|
|00001dd0| 09 09 09 09 2b 2b 74 66 | 6e 6f 3b 0a 09 09 09 09 |....++tf|no;.....|
|00001de0| 09 62 6c 6f 63 6b 6e 6f | 20 3d 20 2d 31 3b 0a 09 |.blockno| = -1;..|
|00001df0| 09 09 09 09 72 65 6c 65 | 61 73 65 28 53 5f 54 4d |....rele|ase(S_TM|
|00001e00| 29 3b 0a 09 09 09 09 7d | 0a 09 09 09 65 6c 73 65 |);.....}|....else|
|00001e10| 0a 09 09 09 09 72 65 6c | 65 61 73 65 28 53 5f 4f |.....rel|ease(S_O|
|00001e20| 4b 29 3b 0a 09 09 65 6c | 73 65 20 7b 0a 09 09 09 |K);...el|se {....|
|00001e30| 66 70 72 69 6e 74 66 28 | 73 74 64 65 72 72 2c 20 |fprintf(|stderr, |
|00001e40| 22 64 62 63 6f 70 79 3a | 20 22 29 3b 0a 09 09 09 |"dbcopy:| ");....|
|00001e50| 69 66 20 28 6e 67 6f 74 | 3c 30 29 20 7b 0a 09 09 |if (ngot|<0) {...|
|00001e60| 09 09 69 66 28 69 73 74 | 61 70 65 29 0a 09 09 09 |..if(ist|ape)....|
|00001e70| 09 09 66 70 72 69 6e 74 | 66 28 73 74 64 65 72 72 |..fprint|f(stderr|
|00001e80| 2c 20 22 66 69 6c 65 20 | 25 64 2c 20 62 6c 6f 63 |, "file |%d, bloc|
|00001e90| 6b 20 25 64 20 22 2c 0a | 09 09 09 09 09 09 74 66 |k %d ",.|......tf|
|00001ea0| 6e 6f 2c 20 62 6c 6f 63 | 6b 6e 6f 29 3b 0a 09 09 |no, bloc|kno);...|
|00001eb0| 09 09 65 6c 73 65 0a 09 | 09 09 09 09 66 70 72 69 |..else..|....fpri|
|00001ec0| 6e 74 66 28 73 74 64 65 | 72 72 2c 20 22 28 61 74 |ntf(stde|rr, "(at|
|00001ed0| 20 73 65 65 6b 20 25 6c | 64 29 20 22 2c 20 6f 66 | seek %l|d) ", of|
|00001ee0| 66 73 65 74 29 3b 0a 09 | 09 09 09 70 65 72 72 6f |fset);..|...perro|
|00001ef0| 72 28 22 72 65 61 64 22 | 29 3b 0a 09 09 09 09 72 |r("read"|);.....r|
|00001f00| 65 6c 65 61 73 65 28 53 | 5f 45 52 52 29 3b 0a 09 |elease(S|_ERR);..|
|00001f10| 09 09 09 62 72 65 61 6b | 3b 0a 09 09 09 7d 20 65 |...break|;....} e|
|00001f20| 6c 73 65 20 69 66 20 28 | 6e 67 6f 74 20 3d 3d 20 |lse if (|ngot == |
|00001f30| 30 29 20 7b 0a 09 09 09 | 09 69 66 20 28 21 75 6e |0) {....|.if (!un|
|00001f40| 74 69 6c 65 6f 66 29 0a | 09 09 09 09 09 66 70 72 |tileof).|.....fpr|
|00001f50| 69 6e 74 66 28 73 74 64 | 65 72 72 2c 20 22 50 72 |intf(std|err, "Pr|
|00001f60| 65 6d 61 74 75 72 65 20 | 22 29 3b 0a 09 09 09 09 |emature |");.....|
|00001f70| 69 66 20 28 76 65 72 62 | 6f 73 65 20 7c 7c 20 21 |if (verb|ose || !|
|00001f80| 75 6e 74 69 6c 65 6f 66 | 29 0a 09 09 09 09 09 66 |untileof|)......f|
|00001f90| 70 72 69 6e 74 66 28 75 | 6e 74 69 6c 65 6f 66 3f |printf(u|ntileof?|
|00001fa0| 20 73 74 64 6f 75 74 3a | 73 74 64 65 72 72 2c 0a | stdout:|stderr,.|
|00001fb0| 09 09 09 09 09 09 22 45 | 4f 46 20 61 74 20 25 6c |......"E|OF at %l|
|00001fc0| 64 20 62 79 74 65 73 5c | 6e 22 2c 20 6f 66 66 73 |d bytes\|n", offs|
|00001fd0| 65 74 29 3b 0a 09 09 09 | 09 72 65 6c 65 61 73 65 |et);....|.release|
|00001fe0| 28 53 5f 45 4f 46 29 3b | 0a 09 09 09 09 62 72 65 |(S_EOF);|.....bre|
|00001ff0| 61 6b 3b 0a 09 09 09 7d | 20 65 6c 73 65 20 7b 0a |ak;....}| else {.|
|00002000| 09 09 09 09 66 70 72 69 | 6e 74 66 28 73 74 64 65 |....fpri|ntf(stde|
|00002010| 72 72 2c 20 22 73 68 6f | 72 74 20 72 65 61 64 20 |rr, "sho|rt read |
|00002020| 61 74 20 25 6c 64 2c 20 | 77 61 6e 74 65 64 20 25 |at %ld, |wanted %|
|00002030| 6c 64 20 67 6f 74 20 25 | 6c 64 5c 6e 22 2c 0a 09 |ld got %|ld\n",..|
|00002040| 09 09 09 09 6f 66 66 73 | 65 74 2c 20 6e 77 61 6e |....offs|et, nwan|
|00002050| 74 2c 20 6e 67 6f 74 29 | 3b 0a 09 09 09 09 72 65 |t, ngot)|;.....re|
|00002060| 6c 65 61 73 65 28 53 5f | 45 52 52 29 3b 0a 09 09 |lease(S_|ERR);...|
|00002070| 09 7d 0a 09 09 7d 0a 09 | 09 69 66 20 28 21 64 6f |.}...}..|.if (!do|
|00002080| 6e 74 77 61 69 74 29 0a | 09 09 09 73 77 69 74 63 |ntwait).|...switc|
|00002090| 68 28 77 61 69 74 66 6f | 72 28 29 29 20 7b 0a 09 |h(waitfo|r()) {..|
|000020a0| 09 09 63 61 73 65 20 53 | 5f 4f 4b 3a 0a 09 09 09 |..case S|_OK:....|
|000020b0| 09 62 72 65 61 6b 3b 0a | 09 09 09 63 61 73 65 20 |.break;.|...case |
|000020c0| 53 5f 54 4d 3a 0a 09 09 | 09 09 66 70 72 69 6e 74 |S_TM:...|..fprint|
|000020d0| 66 28 73 74 64 65 72 72 | 2c 20 22 64 62 63 6f 70 |f(stderr|, "dbcop|
|000020e0| 79 3a 20 4f 75 74 20 6f | 66 20 73 79 6e 63 68 20 |y: Out o|f synch |
|000020f0| 28 73 6f 66 74 77 61 72 | 65 20 65 72 72 6f 72 29 |(softwar|e error)|
|00002100| 5c 6e 22 29 3b 0a 09 09 | 09 09 64 6f 6e 65 28 20 |\n");...|..done( |
|00002110| 31 20 29 3b 0a 09 09 09 | 63 61 73 65 20 53 5f 45 |1 );....|case S_E|
|00002120| 52 52 3a 0a 09 09 09 09 | 64 6f 6e 65 28 20 31 20 |RR:.....|done( 1 |
|00002130| 29 3b 0a 09 09 09 63 61 | 73 65 20 53 5f 45 4f 46 |);....ca|se S_EOF|
|00002140| 3a 0a 09 09 09 09 64 6f | 6e 65 28 20 30 20 29 3b |:.....do|ne( 0 );|
|00002150| 0a 09 09 09 64 65 66 61 | 75 6c 74 3a 0a 09 09 09 |....defa|ult:....|
|00002160| 09 66 70 72 69 6e 74 66 | 28 20 73 74 64 65 72 72 |.fprintf|( stderr|
|00002170| 2c 20 22 64 62 63 6f 70 | 79 3a 20 75 6e 6b 6e 6f |, "dbcop|y: unkno|
|00002180| 77 6e 20 73 74 61 74 75 | 73 5c 6e 22 20 29 3b 0a |wn statu|s\n" );.|
|00002190| 09 09 09 09 64 6f 6e 65 | 28 20 31 20 29 3b 0a 09 |....done|( 1 );..|
|000021a0| 09 09 7d 0a 09 09 64 6f | 6e 74 77 61 69 74 20 3d |..}...do|ntwait =|
|000021b0| 20 30 3b 0a 09 09 2f 2a | 0a 09 09 20 2a 20 41 6e | 0;.../*|... * An|
|000021c0| 20 6c 73 65 65 6b 20 73 | 68 6f 75 6c 64 20 6e 6f | lseek s|hould no|
|000021d0| 74 20 62 65 20 6e 65 63 | 65 73 73 61 72 79 20 68 |t be nec|essary h|
|000021e0| 65 72 65 20 65 69 74 68 | 65 72 2e 0a 09 09 20 2a |ere eith|er.... *|
|000021f0| 0a 09 09 20 2a 20 6c 73 | 65 65 6b 28 6f 75 74 70 |... * ls|eek(outp|
|00002200| 75 74 2c 20 6f 66 66 73 | 65 74 2c 20 30 29 3b 0a |ut, offs|et, 0);.|
|00002210| 09 09 20 2a 2f 0a 09 09 | 69 66 20 28 69 73 74 61 |.. */...|if (ista|
|00002220| 70 65 20 26 26 20 6e 67 | 6f 74 20 3d 3d 20 30 29 |pe && ng|ot == 0)|
|00002230| 20 7b 0a 09 09 09 73 74 | 72 75 63 74 20 6d 74 6f | {....st|ruct mto|
|00002240| 70 20 6d 74 6f 70 3b 0a | 09 09 09 6d 74 6f 70 2e |p mtop;.|...mtop.|
|00002250| 6d 74 5f 6f 70 20 3d 20 | 4d 54 57 45 4f 46 3b 0a |mt_op = |MTWEOF;.|
|00002260| 09 09 09 6d 74 6f 70 2e | 6d 74 5f 63 6f 75 6e 74 |...mtop.|mt_count|
|00002270| 20 3d 20 31 3b 0a 09 09 | 09 69 66 28 69 6f 63 74 | = 1;...|.if(ioct|
|00002280| 6c 28 6f 75 74 70 75 74 | 2c 20 4d 54 49 4f 43 54 |l(output|, MTIOCT|
|00002290| 4f 50 2c 20 26 6d 74 6f | 70 29 20 3c 20 30 29 20 |OP, &mto|p) < 0) |
|000022a0| 7b 0a 09 09 09 09 66 70 | 72 69 6e 74 66 28 73 74 |{.....fp|rintf(st|
|000022b0| 64 65 72 72 2c 20 22 64 | 62 63 6f 70 79 3a 20 22 |derr, "d|bcopy: "|
|000022c0| 29 3b 0a 09 09 09 09 70 | 65 72 72 6f 72 28 22 77 |);.....p|error("w|
|000022d0| 72 69 74 65 20 65 6f 66 | 22 29 3b 0a 09 09 09 09 |rite eof|");.....|
|000022e0| 72 65 6c 65 61 73 65 28 | 53 5f 45 52 52 29 3b 0a |release(|S_ERR);.|
|000022f0| 09 09 09 09 62 72 65 61 | 6b 3b 0a 09 09 09 7d 0a |....brea|k;....}.|
|00002300| 09 09 09 69 66 28 73 74 | 61 74 75 73 20 3d 3d 20 |...if(st|atus == |
|00002310| 53 5f 54 4d 29 20 7b 0a | 09 09 09 09 69 66 28 6f |S_TM) {.|....if(o|
|00002320| 66 66 6c 69 6e 65 29 20 | 7b 0a 09 09 09 09 09 6d |ffline) |{......m|
|00002330| 74 6f 70 2e 6d 74 5f 6f | 70 20 3d 20 4d 54 4f 46 |top.mt_o|p = MTOF|
|00002340| 46 4c 3b 0a 09 09 09 09 | 09 69 6f 63 74 6c 28 69 |FL;.....|.ioctl(i|
|00002350| 6e 70 75 74 2c 20 4d 54 | 49 4f 43 54 4f 50 2c 20 |nput, MT|IOCTOP, |
|00002360| 26 6d 74 6f 70 29 3b 0a | 09 09 09 09 09 69 6f 63 |&mtop);.|.....ioc|
|00002370| 74 6c 28 6f 75 74 70 75 | 74 2c 20 4d 54 49 4f 43 |tl(outpu|t, MTIOC|
|00002380| 54 4f 50 2c 20 26 6d 74 | 6f 70 29 3b 0a 09 09 09 |TOP, &mt|op);....|
|00002390| 09 7d 0a 09 09 09 09 2f | 2a 20 41 6c 72 65 61 64 |.}...../|* Alread|
|000023a0| 79 20 64 69 64 20 72 65 | 6c 65 61 73 65 20 6f 66 |y did re|lease of|
|000023b0| 20 53 5f 45 4f 46 20 2a | 2f 0a 09 09 09 09 62 72 | S_EOF *|/.....br|
|000023c0| 65 61 6b 3b 0a 09 09 09 | 7d 20 65 6c 73 65 0a 09 |eak;....|} else..|
|000023d0| 09 09 09 72 65 6c 65 61 | 73 65 28 53 5f 4f 4b 29 |...relea|se(S_OK)|
|000023e0| 3b 0a 09 09 7d 20 65 6c | 73 65 20 69 66 20 28 77 |;...} el|se if (w|
|000023f0| 72 69 74 65 28 6f 75 74 | 70 75 74 2c 20 62 75 66 |rite(out|put, buf|
|00002400| 66 65 72 2c 20 6e 67 6f | 74 29 20 3d 3d 20 6e 67 |fer, ngo|t) == ng|
|00002410| 6f 74 29 0a 09 09 09 72 | 65 6c 65 61 73 65 28 53 |ot)....r|elease(S|
|00002420| 5f 4f 4b 29 3b 0a 09 09 | 65 6c 73 65 20 7b 0a 09 |_OK);...|else {..|
|00002430| 09 09 66 70 72 69 6e 74 | 66 28 73 74 64 65 72 72 |..fprint|f(stderr|
|00002440| 2c 20 22 64 62 63 6f 70 | 79 3a 20 22 29 3b 0a 09 |, "dbcop|y: ");..|
|00002450| 09 09 69 66 28 69 73 74 | 61 70 65 29 0a 09 09 09 |..if(ist|ape)....|
|00002460| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|00002470| 20 22 66 69 6c 65 20 25 | 64 2c 20 62 6c 6f 63 6b | "file %|d, block|
|00002480| 20 25 64 20 22 2c 0a 09 | 09 09 09 09 74 66 6e 6f | %d ",..|....tfno|
|00002490| 2c 20 62 6c 6f 63 6b 6e | 6f 29 3b 0a 09 09 09 70 |, blockn|o);....p|
|000024a0| 65 72 72 6f 72 28 22 77 | 72 69 74 65 22 29 3b 0a |error("w|rite");.|
|000024b0| 09 09 09 72 65 6c 65 61 | 73 65 28 53 5f 45 52 52 |...relea|se(S_ERR|
|000024c0| 29 3b 0a 09 09 09 62 72 | 65 61 6b 3b 0a 09 09 7d |);....br|eak;...}|
|000024d0| 0a 09 09 69 66 20 28 69 | 73 74 61 70 65 20 3d 3d |...if (i|stape ==|
|000024e0| 20 30 20 26 26 20 6e 67 | 6f 74 20 21 3d 20 6e 77 | 0 && ng|ot != nw|
|000024f0| 61 6e 74 29 09 2f 2a 20 | 73 68 6f 72 74 20 72 65 |ant)./* |short re|
|00002500| 61 64 20 2a 2f 0a 09 09 | 09 62 72 65 61 6b 3b 0a |ad */...|.break;.|
|00002510| 0a 09 09 6f 66 66 73 65 | 74 20 2b 3d 20 32 2a 62 |...offse|t += 2*b|
|00002520| 75 66 73 69 7a 65 3b 0a | 09 09 62 6c 6f 63 6b 6e |ufsize;.|..blockn|
|00002530| 6f 20 2b 3d 20 32 3b 0a | 09 7d 0a 0a 09 64 6f 6e |o += 2;.|.}...don|
|00002540| 65 28 20 30 20 29 3b 0a | 7d 0a 0a 65 72 72 28 73 |e( 0 );.|}..err(s|
|00002550| 29 0a 63 68 61 72 20 2a | 73 3b 0a 7b 0a 09 66 70 |).char *|s;.{..fp|
|00002560| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 64 |rintf(st|derr, "d|
|00002570| 62 63 6f 70 79 3a 20 22 | 29 3b 0a 09 70 65 72 72 |bcopy: "|);..perr|
|00002580| 6f 72 28 73 29 3b 0a 09 | 78 78 69 74 28 31 29 3b |or(s);..|xxit(1);|
|00002590| 0a 7d 0a 0a 73 65 74 75 | 70 28 73 2c 20 6d 6f 64 |.}..setu|p(s, mod|
|000025a0| 65 29 0a 63 68 61 72 20 | 2a 73 3b 0a 7b 0a 09 73 |e).char |*s;.{..s|
|000025b0| 74 72 75 63 74 20 73 74 | 61 74 20 73 74 61 74 62 |truct st|at statb|
|000025c0| 3b 0a 09 69 6e 74 20 69 | 3b 0a 0a 09 69 66 20 28 |;..int i|;...if (|
|000025d0| 28 69 20 3d 20 6f 70 65 | 6e 28 73 2c 20 6d 6f 64 |(i = ope|n(s, mod|
|000025e0| 65 29 29 3c 30 29 0a 09 | 09 65 72 72 28 73 29 3b |e))<0)..|.err(s);|
|000025f0| 0a 09 69 66 20 28 73 74 | 61 74 28 73 2c 20 26 73 |..if (st|at(s, &s|
|00002600| 74 61 74 62 29 3c 30 29 | 20 7b 0a 09 09 66 70 72 |tatb)<0)| {...fpr|
|00002610| 69 6e 74 66 28 73 74 64 | 65 72 72 2c 20 22 64 62 |intf(std|err, "db|
|00002620| 63 6f 70 79 3a 20 63 61 | 6e 27 74 20 73 74 61 74 |copy: ca|n't stat|
|00002630| 20 25 73 5c 6e 22 2c 20 | 73 29 3b 0a 09 09 78 78 | %s\n", |s);...xx|
|00002640| 69 74 28 31 29 3b 0a 09 | 7d 0a 23 69 66 20 30 0a |it(1);..|}.#if 0.|
|00002650| 09 69 66 20 28 28 73 74 | 61 74 62 2e 73 74 5f 6d |.if ((st|atb.st_m|
|00002660| 6f 64 65 26 53 5f 49 46 | 4d 54 29 21 3d 53 5f 49 |ode&S_IF|MT)!=S_I|
|00002670| 46 43 48 52 29 20 7b 0a | 09 09 66 70 72 69 6e 74 |FCHR) {.|..fprint|
|00002680| 66 28 73 74 64 65 72 72 | 2c 20 22 64 62 63 6f 70 |f(stderr|, "dbcop|
|00002690| 79 3a 20 25 73 20 69 73 | 20 6e 6f 74 20 61 20 72 |y: %s is| not a r|
|000026a0| 61 77 20 64 65 76 69 63 | 65 5c 6e 22 2c 20 73 29 |aw devic|e\n", s)|
|000026b0| 3b 0a 09 09 78 78 69 74 | 28 31 29 3b 0a 09 7d 0a |;...xxit|(1);..}.|
|000026c0| 23 65 6e 64 69 66 0a 09 | 72 65 74 75 72 6e 28 69 |#endif..|return(i|
|000026d0| 29 3b 0a 7d 0a 0a 78 78 | 69 74 28 63 6f 64 65 29 |);.}..xx|it(code)|
|000026e0| 0a 7b 0a 09 69 6e 74 20 | 73 74 61 74 3b 0a 0a 09 |.{..int |stat;...|
|000026f0| 69 66 20 28 63 68 69 6c | 64 70 69 64 29 20 7b 0a |if (chil|dpid) {.|
|00002700| 09 09 6b 69 6c 6c 28 63 | 68 69 6c 64 70 69 64 2c |..kill(c|hildpid,|
|00002710| 20 53 49 47 54 45 52 4d | 29 3b 0a 09 09 77 61 69 | SIGTERM|);...wai|
|00002720| 74 28 26 73 74 61 74 29 | 3b 0a 09 7d 0a 09 65 78 |t(&stat)|;..}..ex|
|00002730| 69 74 28 63 6f 64 65 29 | 3b 0a 7d 0a 0a 0a 64 6f |it(code)|;.}...do|
|00002740| 6e 65 28 20 63 6f 64 65 | 20 29 0a 7b 0a 09 69 6e |ne( code| ).{..in|
|00002750| 74 20 73 74 61 74 3b 0a | 0a 09 69 66 20 28 63 68 |t stat;.|..if (ch|
|00002760| 69 6c 64 70 69 64 29 20 | 7b 0a 09 09 73 74 61 74 |ildpid) |{...stat|
|00002770| 20 3d 20 2d 31 3b 0a 09 | 09 69 66 20 28 77 61 69 | = -1;..|.if (wai|
|00002780| 74 28 26 73 74 61 74 29 | 20 21 3d 20 63 68 69 6c |t(&stat)| != chil|
|00002790| 64 70 69 64 29 20 7b 0a | 09 09 09 66 70 72 69 6e |dpid) {.|...fprin|
|000027a0| 74 66 28 73 74 64 65 72 | 72 2c 20 22 64 62 63 6f |tf(stder|r, "dbco|
|000027b0| 70 79 3a 20 77 61 69 74 | 20 65 72 72 6f 72 5c 6e |py: wait| error\n|
|000027c0| 22 29 3b 0a 09 09 09 65 | 78 69 74 28 31 29 3b 0a |");....e|xit(1);.|
|000027d0| 09 09 7d 20 65 6c 73 65 | 20 69 66 20 28 73 74 61 |..} else| if (sta|
|000027e0| 74 20 21 3d 20 30 29 0a | 09 09 09 65 78 69 74 28 |t != 0).|...exit(|
|000027f0| 31 29 3b 0a 09 7d 0a 09 | 65 78 69 74 28 20 63 6f |1);..}..|exit( co|
|00002800| 64 65 20 29 3b 0a 7d 0a | 0a 09 65 6e 75 6d 20 73 |de );.}.|..enum s|
|00002810| 74 61 74 75 73 0a 77 61 | 69 74 66 6f 72 28 29 0a |tatus.wa|itfor().|
|00002820| 7b 0a 09 63 68 61 72 20 | 63 3b 0a 0a 09 69 66 20 |{..char |c;...if |
|00002830| 28 72 65 61 64 28 6d 79 | 6c 6f 63 6b 2c 20 26 63 |(read(my|lock, &c|
|00002840| 2c 20 31 29 20 21 3d 20 | 31 29 0a 09 09 65 72 72 |, 1) != |1)...err|
|00002850| 28 22 70 69 70 65 20 72 | 65 61 64 22 29 3b 0a 09 |("pipe r|ead");..|
|00002860| 72 65 74 75 72 6e 20 28 | 65 6e 75 6d 20 73 74 61 |return (|enum sta|
|00002870| 74 75 73 29 20 63 3b 0a | 7d 0a 0a 72 65 6c 65 61 |tus) c;.|}..relea|
|00002880| 73 65 28 73 74 61 74 29 | 0a 09 65 6e 75 6d 20 73 |se(stat)|..enum s|
|00002890| 74 61 74 75 73 20 73 74 | 61 74 3b 0a 7b 0a 09 63 |tatus st|at;.{..c|
|000028a0| 68 61 72 20 63 20 3d 20 | 28 63 68 61 72 29 20 73 |har c = |(char) s|
|000028b0| 74 61 74 3b 0a 0a 09 69 | 66 20 28 77 72 69 74 65 |tat;...i|f (write|
|000028c0| 28 68 69 73 6c 6f 63 6b | 2c 20 26 63 2c 20 31 29 |(hislock|, &c, 1)|
|000028d0| 20 21 3d 20 31 29 0a 09 | 09 65 72 72 28 22 70 69 | != 1)..|.err("pi|
|000028e0| 70 65 20 77 72 69 74 65 | 22 29 3b 0a 7d 0a 0a 09 |pe write|");.}...|
|000028f0| 69 66 28 73 65 74 73 69 | 7a 65 29 20 2b 2b 62 75 |if(setsi|ze) ++bu|
|00002900| 66 73 69 7a 65 3b 09 2f | 2a 20 2b 31 20 66 6f 72 |fsize;./|* +1 for|
|00002910| 20 6f 76 65 72 66 6c 6f | 77 20 63 68 65 63 6b 20 | overflo|w check |
|00002920| 2a 2f 0a 09 09 65 6c 73 | 65 20 62 75 66 73 69 7a |*/...els|e bufsiz|
|00002930| 65 3d 30 78 37 46 46 31 | 3b 09 2f 2a 20 33 32 6b |e=0x7FF1|;./* 32k|
|00002940| 20 6c 65 73 73 20 6d 61 | 6c 6c 6f 63 27 73 20 6f | less ma|lloc's o|
|00002950| 76 65 72 68 65 61 64 20 | 61 6e 64 20 31 20 66 6f |verhead |and 1 fo|
|00002960| 72 20 63 68 65 63 6b 20 | 2a 2f 0a 09 7d 0a 0a 09 |r check |*/..}...|
|00002970| 69 6e 70 75 74 20 3d 20 | 73 65 74 75 70 28 61 72 |input = |setup(ar|
|00002980| 67 76 5b 30 5d 2c 20 30 | 29 3b 0a 09 6f 75 74 70 |gv[0], 0|);..outp|
|00002990| 75 74 20 3d 20 73 65 74 | 75 70 28 61 72 67 76 5b |ut = set|up(argv[|
|000029a0| 31 5d 2c 20 31 29 3b 0a | 09 0a 09 69 66 20 28 70 |1], 1);.|...if (p|
|000029b0| 69 70 65 28 74 6f 70 61 | 72 65 6e 74 29 20 7c 7c |ipe(topa|rent) |||
|000029c0| 20 70 69 70 65 28 74 6f | 63 68 69 6c 64 29 29 20 | pipe(to|child)) |
|000029d0| 7b 0a 09 09 66 70 72 69 | 6e 74 66 28 73 74 64 65 |{...fpri|ntf(stde|
|000029e0| 72 72 2c 20 22 64 62 63 | 6f 70 79 3a 20 63 61 6e |rr, "dbc|opy: can|
|000029f0| 6e 6f 74 20 63 72 65 61 | 74 65 20 70 69 70 65 73 |not crea|te pipes|
|00002a00| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a10| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a60| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a80| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002a90| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002aa0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002ab0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002ac0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002ad0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002ae0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002af0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b00| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b10| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b60| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b80| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002b90| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002ba0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002bb0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002bc0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002bd0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002be0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002bf0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c00| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c10| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c60| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c80| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002c90| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002ca0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002cb0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002cc0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002cd0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002ce0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002cf0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d00| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d10| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d60| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d80| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002d90| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002da0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002db0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002dc0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002dd0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002de0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002df0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00002e00| 0a 20 2a 20 49 6e 20 65 | 61 63 68 20 70 72 6f 63 |. * In e|ach proc|
|00002e10| 65 73 73 2c 20 22 68 69 | 73 6c 6f 63 6b 22 20 69 |ess, "hi|slock" i|
|00002e20| 73 20 74 68 65 20 77 72 | 69 74 65 20 64 65 73 63 |s the wr|ite desc|
|00002e30| 72 69 70 74 6f 72 20 6f | 66 20 74 68 65 0a 20 2a |riptor o|f the. *|
|00002e40| 20 70 69 70 65 20 67 6f | 69 6e 67 20 74 6f 20 74 | pipe go|ing to t|
|00002e50| 68 65 20 6f 74 68 65 72 | 20 70 72 6f 63 65 73 73 |he other| process|
|00002e60| 2c 20 61 6e 64 20 22 6d | 79 6c 6f 63 6b 22 20 69 |, and "m|ylock" i|
|00002e70| 73 20 74 68 65 20 72 65 | 61 64 0a 20 2a 20 64 65 |s the re|ad. * de|
|00002e80| 73 63 72 69 70 74 6f 72 | 20 6f 66 20 74 68 65 20 |scriptor| of the |
|00002e90| 70 69 70 65 20 62 65 69 | 6e 67 20 72 65 61 64 20 |pipe bei|ng read |
|00002ea0| 62 79 20 74 68 69 73 20 | 70 72 6f 63 65 73 73 2e |by this |process.|
|00002eb0| 0a 20 2a 2f 0a 65 6e 75 | 6d 20 73 74 61 74 75 73 |. */.enu|m status|
|00002ec0| 20 7b 20 53 5f 4f 4b 2c | 20 53 5f 45 4f 46 2c 20 | { S_OK,| S_EOF, |
|00002ed0| 53 5f 45 52 52 2c 20 53 | 5f 54 4d 20 7d 3b 0a 65 |S_ERR, S|_TM };.e|
|00002ee0| 6e 75 6d 20 73 74 61 74 | 75 73 20 77 61 69 74 66 |num stat|us waitf|
|00002ef0| 6f 72 28 29 3b 0a 69 6e | 74 20 6d 79 6c 6f 63 6b |or();.in|t mylock|
|00002f00| 2c 20 68 69 73 6c 6f 63 | 6b 3b 0a 69 6e 74 20 63 |, hisloc|k;.int c|
|00002f10| 68 69 6c 64 70 69 64 20 | 3d 20 30 3b 0a 0a 2f 2a |hildpid |= 0;../*|
|00002f20| 20 70 69 70 65 20 75 6e | 69 74 73 20 2a 2f 0a 23 | pipe un|its */.#|
|00002f30| 64 65 66 69 6e 65 09 52 | 44 09 30 0a 23 64 65 66 |define.R|D.0.#def|
|00002f40| 69 6e 65 09 57 52 09 31 | 0a 0a 6d 61 69 6e 28 61 |ine.WR.1|..main(a|
|00002f50| 72 67 63 2c 20 61 72 67 | 76 29 0a 63 68 61 72 20 |rgc, arg|v).char |
|00002f60| 2a 2a 61 72 67 76 3b 0a | 7b 0a 09 69 6e 74 20 6f |**argv;.|{..int o|
|00002f70| 75 74 70 75 74 2c 20 69 | 6e 70 75 74 3b 0a 09 6f |utput, i|nput;..o|
|00002f80| 66 66 5f 74 20 6f 66 66 | 73 65 74 2c 20 6e 77 61 |ff_t off|set, nwa|
|00002f90| 6e 74 2c 20 6e 67 6f 74 | 2c 20 76 3b 0a 09 63 68 |nt, ngot|, v;..ch|
|00002fa0| 61 72 20 2a 62 75 66 66 | 65 72 2c 20 2a 6d 61 6c |ar *buff|er, *mal|
|00002fb0| 6c 6f 63 28 29 3b 0a 09 | 69 6e 74 20 74 6f 70 61 |loc();..|int topa|
|00002fc0| 72 65 6e 74 5b 32 5d 2c | 20 74 6f 63 68 69 6c 64 |rent[2],| tochild|
|00002fd0| 5b 32 5d 3b 0a 09 69 6e | 74 20 64 6f 6e 74 77 61 |[2];..in|t dontwa|
|00002fe0| 69 74 3b 0a 09 69 6e 74 | 20 69 73 74 61 70 65 20 |it;..int| istape |
|00002ff0| 3d 20 30 2c 20 62 6c 6f | 63 6b 6e 6f 20 3d 20 30 |= 0, blo|ckno = 0|
|00003000| 2c 20 74 66 6e 6f 20 3d | 20 31 2c 20 6f 66 66 6c |, tfno =| 1, offl|
|00003010| 69 6e 65 20 3d 20 31 3b | 0a 09 69 6e 74 20 76 65 |ine = 1;|..int ve|
|00003020| 72 62 6f 73 65 20 3d 20 | 30 3b 0a 0a 09 66 6f 72 |rbose = |0;...for|
|00003030| 20 28 2d 2d 61 72 67 63 | 2c 2b 2b 61 72 67 76 3b | (--argc|,++argv;|
|00003040| 20 61 72 67 63 20 3e 20 | 31 20 26 26 20 61 72 67 | argc > |1 && arg|
|00003050| 76 5b 30 5d 5b 30 5d 20 | 3d 3d 20 27 2d 27 3b 20 |v[0][0] |== '-'; |
|00003060| 29 20 7b 0a 09 09 73 77 | 69 74 63 68 20 28 61 72 |) {...sw|itch (ar|
|00003070| 67 76 5b 30 5d 5b 31 5d | 29 20 7b 0a 09 09 63 61 |gv[0][1]|) {...ca|
|00003080| 73 65 20 27 74 27 3a 0a | 09 09 09 69 73 74 61 70 |se 't':.|...istap|
|00003090| 65 2b 2b 3b 0a 09 09 09 | 61 72 67 63 2d 2d 3b 20 |e++;....|argc--; |
|000030a0| 61 72 67 76 2b 2b 3b 0a | 09 09 09 63 6f 6e 74 69 |argv++;.|...conti|
|000030b0| 6e 75 65 3b 0a 09 09 63 | 61 73 65 20 27 6f 27 3a |nue;...c|ase 'o':|
|000030c0| 0a 09 09 09 6f 66 66 6c | 69 6e 65 20 3d 20 30 3b |....offl|ine = 0;|
|000030d0| 0a 09 09 09 61 72 67 63 | 2d 2d 3b 20 61 72 67 76 |....argc|--; argv|
|000030e0| 2b 2b 3b 0a 09 09 09 63 | 6f 6e 74 69 6e 75 65 3b |++;....c|ontinue;|
|000030f0| 0a 09 09 63 61 73 65 20 | 27 76 27 3a 0a 09 09 09 |...case |'v':....|
|00003100| 76 65 72 62 6f 73 65 20 | 3d 20 31 3b 0a 09 09 09 |verbose |= 1;....|
|00003110| 61 72 67 63 2d 2d 3b 20 | 61 72 67 76 2b 2b 3b 0a |argc--; |argv++;.|
|00003120| 09 09 09 63 6f 6e 74 69 | 6e 75 65 3b 0a 09 09 7d |...conti|nue;...}|
|00003130| 0a 0a 09 09 69 66 20 28 | 61 72 67 63 20 3c 20 32 |....if (|argc < 2|
|00003140| 29 20 7b 0a 09 09 09 66 | 70 72 69 6e 74 66 28 73 |) {....f|printf(s|
|00003150| 74 64 65 72 72 2c 20 22 | 64 62 63 6f 70 79 3a 20 |tderr, "|dbcopy: |
|00003160| 6d 69 73 73 69 6e 67 20 | 76 61 6c 75 65 20 61 66 |missing |value af|
|00003170| 74 65 72 20 25 73 5c 6e | 22 2c 0a 09 09 09 09 61 |ter %s\n|",.....a|
|00003180| 72 67 76 5b 30 5d 29 3b | 0a 09 09 09 65 78 69 74 |rgv[0]);|....exit|
|00003190| 28 32 29 3b 0a 09 09 7d | 0a 09 09 69 66 20 28 28 |(2);...}|...if ((|
|000031a0| 76 20 3d 20 61 74 6f 69 | 28 61 72 67 76 5b 31 5d |v = atoi|(argv[1]|
|000031b0| 29 29 20 3c 3d 20 30 29 | 20 7b 0a 09 09 09 66 70 |)) <= 0)| {....fp|
|000031c0| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 64 |rintf(st|derr, "d|
|000031d0| 62 63 6f 70 79 3a 20 62 | 61 64 20 70 61 72 61 6d |bcopy: b|ad param|
|000031e0| 65 74 65 72 20 25 73 5c | 6e 22 2c 20 61 72 67 76 |eter %s\|n", argv|
|000031f0| 5b 31 5d 29 3b 0a 09 09 | 09 65 78 69 74 28 32 29 |[1]);...|.exit(2)|
|00003200| 3b 0a 09 09 7d 0a 0a 09 | 09 73 77 69 74 63 68 20 |;...}...|.switch |
|00003210| 28 61 72 67 76 5b 30 5d | 5b 31 5d 29 20 7b 0a 0a |(argv[0]|[1]) {..|
|00003220| 09 09 09 2f 2a 20 62 75 | 66 66 65 72 20 73 69 7a |.../* bu|ffer siz|
|00003230| 65 20 69 6e 20 62 79 74 | 65 73 20 2a 2f 0a 09 09 |e in byt|es */...|
|00003240| 63 61 73 65 20 27 62 27 | 3a 0a 09 09 09 62 75 66 |case 'b'|:....buf|
|00003250| 73 69 7a 65 20 3d 20 76 | 3b 0a 09 09 09 73 65 74 |size = v|;....set|
|00003260| 73 69 7a 65 20 3d 20 31 | 3b 0a 09 09 09 62 72 65 |size = 1|;....bre|
|00003270| 61 6b 3b 0a 0a 09 09 09 | 2f 2a 20 74 6f 74 61 6c |ak;.....|/* total|
|00003280| 20 6c 65 6e 67 74 68 20 | 74 6f 20 63 6f 70 79 20 | length |to copy |
|00003290| 69 6e 20 62 79 74 65 73 | 20 2a 2f 0a 09 09 63 61 |in bytes| */...ca|
|000032a0| 73 65 20 27 6c 27 3a 0a | 09 09 09 6e 62 79 74 65 |se 'l':.|...nbyte|
|000032b0| 73 20 3d 20 76 3b 0a 09 | 09 09 75 6e 74 69 6c 65 |s = v;..|..untile|
|000032c0| 6f 66 20 3d 20 30 3b 0a | 09 09 09 62 72 65 61 6b |of = 0;.|...break|
|000032d0| 3b 0a 0a 09 09 09 2f 2a | 20 74 6f 74 61 6c 20 6c |;...../*| total l|
|000032e0| 65 6e 67 74 68 20 74 6f | 20 63 6f 70 79 20 69 6e |ength to| copy in|
|000032f0| 20 75 6e 69 74 73 20 6f | 66 20 74 68 65 20 62 75 | units o|f the bu|
|00003300| 66 66 65 72 20 73 69 7a | 65 20 2a 2f 0a 09 09 63 |ffer siz|e */...c|
|00003310| 61 73 65 20 27 63 27 3a | 0a 09 09 09 6e 72 65 63 |ase 'c':|....nrec|
|00003320| 20 3d 20 76 3b 0a 09 09 | 09 75 6e 74 69 6c 65 6f | = v;...|.untileo|
|00003330| 66 20 3d 20 30 3b 0a 09 | 09 09 62 72 65 61 6b 3b |f = 0;..|..break;|
|00003340| 0a 0a 09 09 64 65 66 61 | 75 6c 74 3a 0a 09 09 09 |....defa|ult:....|
|00003350| 66 70 72 69 6e 74 66 28 | 73 74 64 65 72 72 2c 20 |fprintf(|stderr, |
|00003360| 22 64 62 63 6f 70 79 3a | 20 6f 70 74 69 6f 6e 20 |"dbcopy:| option |
|00003370| 25 63 3f 5c 6e 22 2c 20 | 61 72 67 76 5b 30 5d 5b |%c?\n", |argv[0][|
|00003380| 31 5d 29 3b 0a 09 09 09 | 65 78 69 74 28 31 29 3b |1]);....|exit(1);|
|00003390| 0a 09 09 7d 0a 09 09 61 | 72 67 63 20 2d 3d 20 32 |...}...a|rgc -= 2|
|000033a0| 2c 20 61 72 67 76 20 2b | 3d 20 32 3b 0a 09 7d 0a |, argv +|= 2;..}.|
|000033b0| 0a 09 69 66 20 28 61 72 | 67 63 20 21 3d 20 32 29 |..if (ar|gc != 2)|
|000033c0| 20 7b 0a 09 09 66 70 72 | 69 6e 74 66 28 73 74 64 | {...fpr|intf(std|
|000033d0| 65 72 72 2c 20 22 55 73 | 61 67 65 3a 20 64 62 63 |err, "Us|age: dbc|
|000033e0| 6f 70 79 20 5b 2d 6f 5d | 20 5b 2d 76 5d 20 5b 2d |opy [-o]| [-v] [-|
|000033f0| 74 5d 20 5b 2d 62 20 62 | 75 66 73 69 7a 65 5d 20 |t] [-b b|ufsize] |
|00003400| 5b 2d 6c 20 6c 65 6e 67 | 74 68 5d 20 5b 2d 63 20 |[-l leng|th] [-c |
|00003410| 63 6f 75 6e 74 5d 20 69 | 6e 70 75 74 20 6f 75 74 |count] i|nput out|
|00003420| 70 75 74 5c 6e 22 29 3b | 0a 09 09 65 78 69 74 28 |put\n");|...exit(|
|00003430| 32 29 3b 0a 09 7d 0a 09 | 69 66 20 28 6e 62 79 74 |2);..}..|if (nbyt|
|00003440| 65 73 20 3d 3d 20 30 20 | 26 26 20 6e 72 65 63 20 |es == 0 |&& nrec |
|00003450| 21 3d 20 30 29 0a 09 09 | 6e 62 79 74 65 73 20 3d |!= 0)...|nbytes =|
|00003460| 20 6e 72 65 63 20 2a 20 | 62 75 66 73 69 7a 65 3b | nrec * |bufsize;|
|00003470| 0a 09 69 66 20 28 69 73 | 74 61 70 65 29 7b 0a 09 |..if (is|tape){..|
|00003480| 09 69 66 28 20 75 6e 74 | 69 6c 65 6f 66 20 3d 3d |.if( unt|ileof ==|
|00003490| 20 30 29 20 7b 0a 09 09 | 09 66 70 72 69 6e 74 66 | 0) {...|.fprintf|
|000034a0| 28 73 74 64 65 72 72 2c | 20 22 64 62 63 6f 70 79 |(stderr,| "dbcopy|
|000034b0| 3a 20 43 61 6e 27 74 20 | 79 65 74 20 63 6f 70 79 |: Can't |yet copy|
|000034c0| 20 61 6e 79 74 68 69 6e | 67 20 62 75 74 20 77 68 | anythin|g but wh|
|000034d0| 6f 6c 65 20 74 61 70 65 | 5c 6e 22 29 3b 0a 09 09 |ole tape|\n");...|
|000034e0| 09 65 78 69 74 28 32 29 | 3b 0a 09 09 7d 0a 09 09 |.exit(2)|;...}...|
|000034f0| 69 66 28 73 65 74 73 69 | 7a 65 29 20 2b 2b 62 75 |if(setsi|ze) ++bu|
|00003500| 66 73 69 7a 65 3b 09 2f | 2a 20 2b 31 20 66 6f 72 |fsize;./|* +1 for|
|00003510| 20 6f 76 65 72 66 6c 6f | 77 20 63 68 65 63 6b 20 | overflo|w check |
|00003520| 2a 2f 0a 09 09 65 6c 73 | 65 20 62 75 66 73 69 7a |*/...els|e bufsiz|
|00003530| 65 3d 30 78 37 46 46 31 | 3b 09 2f 2a 20 33 32 6b |e=0x7FF1|;./* 32k|
|00003540| 20 6c 65 73 73 20 6d 61 | 6c 6c 6f 63 27 73 20 6f | less ma|lloc's o|
|00003550| 76 65 72 68 65 61 64 20 | 61 6e 64 20 31 20 66 6f |verhead |and 1 fo|
|00003560| 72 20 63 68 65 63 6b 20 | 2a 2f 0a 09 7d 0a 0a 09 |r check |*/..}...|
|00003570| 69 6e 70 75 74 20 3d 20 | 73 65 74 75 70 28 61 72 |input = |setup(ar|
|00003580| 67 76 5b 30 5d 2c 20 30 | 29 3b 0a 09 6f 75 74 70 |gv[0], 0|);..outp|
|00003590| 75 74 20 3d 20 73 65 74 | 75 70 28 61 72 67 76 5b |ut = set|up(argv[|
|000035a0| 31 5d 2c 20 31 29 3b 0a | 09 0a 09 69 66 20 28 70 |1], 1);.|...if (p|
|000035b0| 69 70 65 28 74 6f 70 61 | 72 65 6e 74 29 20 7c 7c |ipe(topa|rent) |||
|000035c0| 20 70 69 70 65 28 74 6f | 63 68 69 6c 64 29 29 20 | pipe(to|child)) |
|000035d0| 7b 0a 09 09 66 70 72 69 | 6e 74 66 28 73 74 64 65 |{...fpri|ntf(stde|
|000035e0| 72 72 2c 20 22 64 62 63 | 6f 70 79 3a 20 63 61 6e |rr, "dbc|opy: can|
|000035f0| 6e 6f 74 20 63 72 65 61 | 74 65 20 70 69 70 65 73 |not crea|te pipes|
|00003600| 5c 6e 22 29 3b 0a 09 09 | 65 78 69 74 28 31 29 3b |\n");...|exit(1);|
|00003610| 0a 09 7d 0a 0a 09 73 77 | 69 74 63 68 28 63 68 69 |..}...sw|itch(chi|
|00003620| 6c 64 70 69 64 20 3d 20 | 66 6f 72 6b 28 29 29 20 |ldpid = |fork()) |
|00003630| 7b 0a 0a 09 63 61 73 65 | 20 30 3a 09 09 09 2f 2a |{...case| 0:.../*|
|00003640| 20 63 68 69 6c 64 20 2a | 2f 0a 09 09 6f 66 66 73 | child *|/...offs|
|00003650| 65 74 20 3d 20 62 75 66 | 73 69 7a 65 3b 0a 09 09 |et = buf|size;...|
|00003660| 62 6c 6f 63 6b 6e 6f 20 | 3d 20 31 3b 0a 09 09 6d |blockno |= 1;...m|
|00003670| 79 6c 6f 63 6b 20 3d 20 | 74 6f 63 68 69 6c 64 5b |ylock = |tochild[|
|00003680| 52 44 5d 3b 0a 09 09 68 | 69 73 6c 6f 63 6b 20 3d |RD];...h|islock =|
|00003690| 20 74 6f 70 61 72 65 6e | 74 5b 57 52 5d 3b 0a 09 | toparen|t[WR];..|
|000036a0| 09 2f 2a 0a 09 09 20 2a | 20 57 65 20 64 6f 6e 27 |./*... *| We don'|
|000036b0| 74 20 63 6c 6f 73 65 20 | 74 68 65 20 70 69 70 65 |t close |the pipe|
|000036c0| 20 64 65 73 63 72 69 70 | 74 6f 72 73 20 77 68 69 | descrip|tors whi|
|000036d0| 63 68 20 61 72 65 20 75 | 6e 75 73 65 64 0a 09 09 |ch are u|nused...|
|000036e0| 20 2a 20 69 6e 20 65 61 | 63 68 20 70 72 6f 63 65 | * in ea|ch proce|
|000036f0| 73 73 2e 20 20 54 68 69 | 73 20 70 72 65 76 65 6e |ss.  Thi|s preven|
|00003700| 74 73 20 67 65 74 74 69 | 6e 67 20 22 70 69 70 65 |ts getti|ng "pipe|
|00003710| 20 62 72 6f 6b 65 6e 22 | 0a 09 09 20 2a 20 73 69 | broken"|... * si|
|00003720| 67 6e 61 6c 73 20 69 66 | 20 77 65 20 72 65 6c 65 |gnals if| we rele|
|00003730| 61 73 65 20 61 20 6c 6f | 63 6b 20 61 6e 64 20 74 |ase a lo|ck and t|
|00003740| 68 65 20 6f 74 68 65 72 | 20 70 72 6f 63 65 73 73 |he other| process|
|00003750| 20 68 61 73 0a 09 09 20 | 2a 20 61 6c 72 65 61 64 | has... |* alread|
|00003760| 79 20 65 78 69 74 65 64 | 2e 0a 09 09 20 2a 2f 0a |y exited|.... */.|
|00003770| 09 09 64 6f 6e 74 77 61 | 69 74 20 3d 20 30 3b 0a |..dontwa|it = 0;.|
|00003780| 09 09 62 72 65 61 6b 3b | 0a 0a 09 64 65 66 61 75 |..break;|...defau|
|00003790| 6c 74 3a 09 09 2f 2a 20 | 70 61 72 65 6e 74 20 2a |lt:../* |parent *|
|000037a0| 2f 0a 09 09 6f 66 66 73 | 65 74 20 3d 20 30 3b 0a |/...offs|et = 0;.|
|000037b0| 09 09 62 6c 6f 63 6b 6e | 6f 20 3d 20 30 3b 0a 09 |..blockn|o = 0;..|
|000037c0| 09 6d 79 6c 6f 63 6b 20 | 3d 20 74 6f 70 61 72 65 |.mylock |= topare|
|000037d0| 6e 74 5b 52 44 5d 3b 0a | 09 09 68 69 73 6c 6f 63 |nt[RD];.|..hisloc|
|000037e0| 6b 20 3d 20 74 6f 63 68 | 69 6c 64 5b 57 52 5d 3b |k = toch|ild[WR];|
|000037f0| 0a 09 09 64 6f 6e 74 77 | 61 69 74 20 3d 20 31 3b |...dontw|ait = 1;|
|00003800| 0a 09 09 62 72 65 61 6b | 3b 0a 09 0a 09 63 61 73 |...break|;....cas|
|00003810| 65 20 2d 31 3a 0a 09 09 | 66 70 72 69 6e 74 66 28 |e -1:...|fprintf(|
|00003820| 73 74 64 65 72 72 2c 20 | 22 64 62 63 6f 70 79 3a |stderr, |"dbcopy:|
|00003830| 20 63 61 6e 6e 6f 74 20 | 66 6f 72 6b 5c 6e 22 29 | cannot |fork\n")|
|00003840| 3b 0a 09 09 65 78 69 74 | 28 33 29 3b 0a 09 7d 0a |;...exit|(3);..}.|
|00003850| 0a 0a 09 2f 2a 20 61 6c | 6c 6f 63 61 74 65 20 62 |.../* al|locate b|
|00003860| 75 66 66 65 72 20 61 66 | 74 65 72 20 66 6f 72 6b |uffer af|ter fork|
|00003870| 20 74 6f 20 61 76 6f 69 | 64 20 63 6f 70 79 69 6e | to avoi|d copyin|
|00003880| 67 20 69 74 20 64 75 72 | 69 6e 67 20 66 6f 72 6b |g it dur|ing fork|
|00003890| 20 2a 2f 0a 09 69 66 20 | 28 28 62 75 66 66 65 72 | */..if |((buffer|
|000038a0| 20 3d 20 6d 61 6c 6c 6f | 63 28 62 75 66 73 69 7a | = mallo|c(bufsiz|
|000038b0| 65 29 29 20 3d 3d 20 4e | 55 4c 4c 29 20 7b 0a 09 |e)) == N|ULL) {..|
|000038c0| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|000038d0| 20 22 64 62 63 6f 70 79 | 3a 20 63 61 6e 6e 6f 74 | "dbcopy|: cannot|
|000038e0| 20 67 65 74 20 62 75 66 | 66 65 72 5c 6e 22 29 3b | get buf|fer\n");|
|000038f0| 0a 09 09 78 78 69 74 28 | 31 29 3b 0a 09 7d 0a 09 |...xxit(|1);..}..|
|00003900| 69 66 28 69 73 74 61 70 | 65 29 20 2d 2d 62 75 66 |if(istap|e) --buf|
|00003910| 73 69 7a 65 3b 20 2f 2a | 20 66 6f 72 20 6f 76 65 |size; /*| for ove|
|00003920| 72 66 6c 6f 77 20 63 68 | 65 63 6b 69 6e 67 20 2a |rflow ch|ecking *|
|00003930| 2f 0a 0a 09 77 68 69 6c | 65 20 28 75 6e 74 69 6c |/...whil|e (until|
|00003940| 65 6f 66 20 7c 7c 20 6f | 66 66 73 65 74 20 3c 20 |eof || o|ffset < |
|00003950| 6e 62 79 74 65 73 29 20 | 7b 0a 09 09 65 6e 75 6d |nbytes) |{...enum|
|00003960| 20 73 74 61 74 75 73 20 | 73 74 61 74 75 73 3b 0a | status |status;.|
|00003970| 0a 09 09 69 66 20 28 75 | 6e 74 69 6c 65 6f 66 20 |...if (u|ntileof |
|00003980| 7c 7c 20 6e 62 79 74 65 | 73 2d 6f 66 66 73 65 74 ||| nbyte|s-offset|
|00003990| 20 3e 20 62 75 66 73 69 | 7a 65 29 0a 09 09 09 6e | > bufsi|ze)....n|
|000039a0| 77 61 6e 74 20 3d 20 62 | 75 66 73 69 7a 65 3b 0a |want = b|ufsize;.|
|000039b0| 09 09 65 6c 73 65 0a 09 | 09 09 6e 77 61 6e 74 20 |..else..|..nwant |
|000039c0| 3d 20 6e 62 79 74 65 73 | 2d 6f 66 66 73 65 74 3b |= nbytes|-offset;|
|000039d0| 0a 09 09 69 66 20 28 21 | 64 6f 6e 74 77 61 69 74 |...if (!|dontwait|
|000039e0| 29 0a 09 09 09 73 77 69 | 74 63 68 28 73 74 61 74 |)....swi|tch(stat|
|000039f0| 75 73 20 3d 20 77 61 69 | 74 66 6f 72 28 29 29 20 |us = wai|tfor()) |
|00003a00| 7b 0a 09 09 09 63 61 73 | 65 20 53 5f 4f 4b 3a 0a |{....cas|e S_OK:.|
|00003a10| 09 09 09 09 62 72 65 61 | 6b 3b 0a 09 09 09 63 61 |....brea|k;....ca|
|00003a20| 73 65 20 53 5f 54 4d 3a | 0a 09 09 09 09 2b 2b 74 |se S_TM:|.....++t|
|00003a30| 66 6e 6f 3b 0a 09 09 09 | 09 62 6c 6f 63 6b 6e 6f |fno;....|.blockno|
|00003a40| 20 3d 20 30 3b 0a 09 09 | 09 09 62 72 65 61 6b 3b | = 0;...|..break;|
|00003a50| 0a 09 09 09 63 61 73 65 | 20 53 5f 45 52 52 3a 0a |....case| S_ERR:.|
|00003a60| 09 09 09 09 64 6f 6e 65 | 28 20 31 20 29 3b 0a 09 |....done|( 1 );..|
|00003a70| 09 09 63 61 73 65 20 53 | 5f 45 4f 46 3a 0a 09 09 |..case S|_EOF:...|
|00003a80| 09 09 64 6f 6e 65 28 20 | 30 20 29 3b 0a 09 09 09 |..done( |0 );....|
|00003a90| 64 65 66 61 75 6c 74 3a | 0a 09 09 09 09 66 70 72 |default:|.....fpr|
|00003aa0| 69 6e 74 66 28 20 73 74 | 64 65 72 72 2c 20 22 64 |intf( st|derr, "d|
|00003ab0| 62 63 6f 70 79 3a 20 75 | 6e 6b 6e 6f 77 6e 20 73 |bcopy: u|nknown s|
|00003ac0| 74 61 74 75 73 5c 6e 22 | 20 29 3b 0a 09 09 09 09 |tatus\n"| );.....|
|00003ad0| 64 6f 6e 65 28 20 31 20 | 29 3b 0a 09 09 09 7d 0a |done( 1 |);....}.|
|00003ae0| 09 09 2f 2a 0a 09 09 20 | 2a 20 54 68 69 73 20 6c |../*... |* This l|
|00003af0| 73 65 65 6b 20 73 68 6f | 75 6c 64 20 6e 65 76 65 |seek sho|uld neve|
|00003b00| 72 20 62 65 20 6e 65 63 | 65 73 73 61 72 79 20 62 |r be nec|essary b|
|00003b10| 65 63 61 75 73 65 20 6f | 66 0a 09 09 20 2a 20 74 |ecause o|f... * t|
|00003b20| 68 65 20 77 61 79 20 74 | 68 65 20 72 65 61 64 73 |he way t|he reads|
|00003b30| 20 6f 66 20 74 68 65 20 | 74 77 6f 20 70 72 6f 63 | of the |two proc|
|00003b40| 65 73 73 65 73 20 61 72 | 65 20 69 6e 74 65 72 6c |esses ar|e interl|
|00003b50| 6f 63 6b 65 64 2e 0a 09 | 09 20 2a 20 42 75 74 20 |ocked...|. * But |
|00003b60| 69 66 20 73 6f 6d 65 74 | 68 69 6e 67 20 6d 65 73 |if somet|hing mes|
|00003b70| 73 65 73 20 75 70 2c 20 | 74 72 79 20 61 64 64 69 |ses up, |try addi|
|00003b80| 6e 67 20 69 74 2e 0a 09 | 09 20 2a 0a 09 09 20 2a |ng it...|. *... *|
|00003b90| 20 6c 73 65 65 6b 28 69 | 6e 70 75 74 2c 20 6f 66 | lseek(i|nput, of|
|00003ba0| 66 73 65 74 2c 20 30 29 | 3b 0a 09 09 20 2a 2f 0a |fset, 0)|;... */.|
|00003bb0| 09 09 69 66 28 69 73 74 | 61 70 65 29 7b 0a 09 09 |..if(ist|ape){...|
|00003bc0| 09 6e 67 6f 74 3d 72 65 | 61 64 28 69 6e 70 75 74 |.ngot=re|ad(input|
|00003bd0| 2c 62 75 66 66 65 72 2c | 6e 77 61 6e 74 2b 31 29 |,buffer,|nwant+1)|
|00003be0| 3b 0a 09 09 09 69 66 28 | 6e 67 6f 74 3e 6e 77 61 |;....if(|ngot>nwa|
|00003bf0| 6e 74 29 7b 0a 09 09 09 | 09 66 70 72 69 6e 74 66 |nt){....|.fprintf|
|00003c00| 28 73 74 64 65 72 72 2c | 22 54 61 70 65 20 62 6c |(stderr,|"Tape bl|
|00003c10| 6f 63 6b 20 77 61 73 20 | 6d 6f 72 65 20 74 68 61 |ock was |more tha|
|00003c20| 6e 20 25 64 20 62 79 74 | 65 73 2c 5c 6e 22 2c 20 |n %d byt|es,\n", |
|00003c30| 6e 77 61 6e 74 29 3b 0a | 09 09 09 09 66 70 72 69 |nwant);.|....fpri|
|00003c40| 6e 74 66 28 73 74 64 65 | 72 72 2c 22 61 74 20 66 |ntf(stde|rr,"at f|
|00003c50| 69 6c 65 20 25 64 2c 20 | 62 6c 6f 63 6b 20 25 64 |ile %d, |block %d|
|00003c60| 2e 5c 6e 22 2c 20 74 66 | 6e 6f 2c 62 6c 6f 63 6b |.\n", tf|no,block|
|00003c70| 6e 6f 29 3b 0a 09 09 09 | 09 72 65 6c 65 61 73 65 |no);....|.release|
|00003c80| 28 53 5f 45 52 52 29 3b | 0a 09 09 09 09 62 72 65 |(S_ERR);|.....bre|
|00003c90| 61 6b 3b 0a 09 09 09 7d | 0a 09 09 7d 0a 09 09 65 |ak;....}|...}...e|
|00003ca0| 6c 73 65 20 6e 67 6f 74 | 3d 72 65 61 64 28 69 6e |lse ngot|=read(in|
|00003cb0| 70 75 74 2c 62 75 66 66 | 65 72 2c 6e 77 61 6e 74 |put,buff|er,nwant|
|00003cc0| 29 3b 0a 09 09 69 66 28 | 20 28 6e 67 6f 74 3d 3d |);...if(| (ngot==|
|00003cd0| 6e 77 61 6e 74 29 20 7c | 7c 0a 09 09 20 20 20 20 |nwant) |||...    |
|00003ce0| 28 69 73 74 61 70 65 20 | 26 26 20 6e 67 6f 74 20 |(istape |&& ngot |
|00003cf0| 3e 3d 20 30 29 29 0a 09 | 09 09 69 66 28 69 73 74 |>= 0))..|..if(ist|
|00003d00| 61 70 65 20 26 26 20 6e | 67 6f 74 20 3d 3d 20 30 |ape && n|got == 0|
|00003d10| 29 0a 09 09 09 09 69 66 | 28 73 74 61 74 75 73 20 |).....if|(status |
|00003d20| 3d 3d 20 53 5f 54 4d 29 | 20 7b 0a 09 09 09 09 09 |== S_TM)| {......|
|00003d30| 69 66 28 76 65 72 62 6f | 73 65 29 0a 09 09 09 09 |if(verbo|se).....|
|00003d40| 09 09 70 72 69 6e 74 66 | 28 22 25 64 20 66 69 6c |..printf|("%d fil|
|00003d50| 65 73 5c 6e 22 2c 20 74 | 66 6e 6f 2d 31 29 3b 0a |es\n", t|fno-1);.|
|00003d60| 09 09 09 09 09 72 65 6c | 65 61 73 65 28 53 5f 45 |.....rel|ease(S_E|
|00003d70| 4f 46 29 3b 0a 09 09 09 | 09 7d 20 65 6c 73 65 20 |OF);....|.} else |
|00003d80| 7b 0a 09 09 09 09 09 69 | 66 28 76 65 72 62 6f 73 |{......i|f(verbos|
|00003d90| 65 29 0a 09 09 09 09 09 | 09 70 72 69 6e 74 66 28 |e)......|.printf(|
|00003da0| 22 66 69 6c 65 20 25 64 | 2c 20 25 64 20 62 6c 6f |"file %d|, %d blo|
|00003db0| 63 6b 73 5c 6e 22 2c 0a | 09 09 09 09 09 09 09 74 |cks\n",.|.......t|
|00003dc0| 66 6e 6f 2c 20 62 6c 6f | 63 6b 6e 6f 29 3b 0a 09 |fno, blo|ckno);..|
|00003dd0| 09 09 09 09 2b 2b 74 66 | 6e 6f 3b 0a 09 09 09 09 |....++tf|no;.....|
|00003de0| 09 62 6c 6f 63 6b 6e 6f | 20 3d 20 2d 31 3b 0a 09 |.blockno| = -1;..|
|00003df0| 09 09 09 09 72 65 6c 65 | 61 73 65 28 53 5f 54 4d |....rele|ase(S_TM|
|00003e00| 29 3b 0a 09 09 09 09 7d | 0a 09 09 09 65 6c 73 65 |);.....}|....else|
|00003e10| 0a 09 09 09 09 72 65 6c | 65 61 73 65 28 53 5f 4f |.....rel|ease(S_O|
|00003e20| 4b 29 3b 0a 09 09 65 6c | 73 65 20 7b 0a 09 09 09 |K);...el|se {....|
|00003e30| 66 70 72 69 6e 74 66 28 | 73 74 64 65 72 72 2c 20 |fprintf(|stderr, |
|00003e40| 22 64 62 63 6f 70 79 3a | 20 22 29 3b 0a 09 09 09 |"dbcopy:| ");....|
|00003e50| 69 66 20 28 6e 67 6f 74 | 3c 30 29 20 7b 0a 09 09 |if (ngot|<0) {...|
|00003e60| 09 09 69 66 28 69 73 74 | 61 70 65 29 0a 09 09 09 |..if(ist|ape)....|
|00003e70| 09 09 66 70 72 69 6e 74 | 66 28 73 74 64 65 72 72 |..fprint|f(stderr|
|00003e80| 2c 20 22 66 69 6c 65 20 | 25 64 2c 20 62 6c 6f 63 |, "file |%d, bloc|
|00003e90| 6b 20 25 64 20 22 2c 0a | 09 09 09 09 09 09 74 66 |k %d ",.|......tf|
|00003ea0| 6e 6f 2c 20 62 6c 6f 63 | 6b 6e 6f 29 3b 0a 09 09 |no, bloc|kno);...|
|00003eb0| 09 09 65 6c 73 65 0a 09 | 09 09 09 09 66 70 72 69 |..else..|....fpri|
|00003ec0| 6e 74 66 28 73 74 64 65 | 72 72 2c 20 22 28 61 74 |ntf(stde|rr, "(at|
|00003ed0| 20 73 65 65 6b 20 25 6c | 64 29 20 22 2c 20 6f 66 | seek %l|d) ", of|
|00003ee0| 66 73 65 74 29 3b 0a 09 | 09 09 09 70 65 72 72 6f |fset);..|...perro|
|00003ef0| 72 28 22 72 65 61 64 22 | 29 3b 0a 09 09 09 09 72 |r("read"|);.....r|
|00003f00| 65 6c 65 61 73 65 28 53 | 5f 45 52 52 29 3b 0a 09 |elease(S|_ERR);..|
|00003f10| 09 09 09 62 72 65 61 6b | 3b 0a 09 09 09 7d 20 65 |...break|;....} e|
|00003f20| 6c 73 65 20 69 66 20 28 | 6e 67 6f 74 20 3d 3d 20 |lse if (|ngot == |
|00003f30| 30 29 20 7b 0a 09 09 09 | 09 69 66 20 28 21 75 6e |0) {....|.if (!un|
|00003f40| 74 69 6c 65 6f 66 29 0a | 09 09 09 09 09 66 70 72 |tileof).|.....fpr|
|00003f50| 69 6e 74 66 28 73 74 64 | 65 72 72 2c 20 22 50 72 |intf(std|err, "Pr|
|00003f60| 65 6d 61 74 75 72 65 20 | 22 29 3b 0a 09 09 09 09 |emature |");.....|
|00003f70| 69 66 20 28 76 65 72 62 | 6f 73 65 20 7c 7c 20 21 |if (verb|ose || !|
|00003f80| 75 6e 74 69 6c 65 6f 66 | 29 0a 09 09 09 09 09 66 |untileof|)......f|
|00003f90| 70 72 69 6e 74 66 28 75 | 6e 74 69 6c 65 6f 66 3f |printf(u|ntileof?|
|00003fa0| 20 73 74 64 6f 75 74 3a | 73 74 64 65 72 72 2c 0a | stdout:|stderr,.|
|00003fb0| 09 09 09 09 09 09 22 45 | 4f 46 20 61 74 20 25 6c |......"E|OF at %l|
|00003fc0| 64 20 62 79 74 65 73 5c | 6e 22 2c 20 6f 66 66 73 |d bytes\|n", offs|
|00003fd0| 65 74 29 3b 0a 09 09 09 | 09 72 65 6c 65 61 73 65 |et);....|.release|
|00003fe0| 28 53 5f 45 4f 46 29 3b | 0a 09 09 09 09 62 72 65 |(S_EOF);|.....bre|
|00003ff0| 61 6b 3b 0a 09 09 09 7d | 20 65 6c 73 65 20 7b 0a |ak;....}| else {.|
+--------+-------------------------+-------------------------+--------+--------+