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DOS

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|00001ab0| 66 28 22 55 73 65 72 20 | 69 6e 74 65 72 72 75 70 |f("User |interrup|
|00001ac0| 74 21 5c 6e 22 29 3b 0a | 58 20 20 69 66 20 28 64 |t!\n");.|X  if (d|
|00001ad0| 69 66 66 5f 64 72 76 29 | 0a 58 20 20 20 20 63 68 |iff_drv)|.X    ch|
|00001ae0| 64 69 72 28 63 77 64 5f | 6f 72 67 32 29 3b 09 09 |dir(cwd_|org2);..|
|00001af0| 2f 2a 20 52 65 73 65 74 | 20 66 6f 72 20 65 61 63 |/* Reset| for eac|
|00001b00| 68 20 63 6f 6d 6d 61 6e | 64 20 2a 2f 0a 58 20 20 |h comman|d */.X  |
|00001b10| 63 68 64 69 72 28 63 77 | 64 5f 6f 72 67 29 3b 09 |chdir(cw|d_org);.|
|00001b20| 09 2f 2a 20 52 65 74 75 | 72 6e 20 74 6f 20 6f 72 |./* Retu|rn to or|
|00001b30| 69 67 69 6e 61 6c 20 64 | 69 72 65 63 74 6f 72 79 |iginal d|irectory|
|00001b40| 20 2a 2f 0a 58 20 20 73 | 65 74 64 69 73 6b 28 63 | */.X  s|etdisk(c|
|00001b50| 75 72 72 5f 64 69 73 6b | 29 3b 0a 58 20 20 65 78 |urr_disk|);.X  ex|
|00001b60| 69 74 28 31 29 3b 09 09 | 09 2f 2a 20 54 68 65 79 |it(1);..|./* They|
|00001b70| 20 77 61 6e 74 20 6f 75 | 74 21 20 2a 2f 0a 58 7d | want ou|t! */.X}|
|00001b80| 0a 58 0a 58 0a 58 2f 2a | 0a 58 20 2a 20 73 77 66 |.X.X.X/*|.X * swf|
|00001b90| 6c 61 67 2e 63 3a 20 50 | 61 72 73 65 20 66 6c 61 |lag.c: P|arse fla|
|00001ba0| 67 20 74 79 70 65 20 73 | 77 69 74 63 68 65 73 2e |g type s|witches.|
|00001bb0| 0a 58 20 2a 0a 58 20 2a | 20 73 77 5f 66 6c 61 67 |.X *.X *| sw_flag|
|00001bc0| 20 28 26 61 63 2c 20 61 | 76 2c 20 22 6c 65 74 74 | (&ac, a|v, "lett|
|00001bd0| 65 72 73 22 2c 20 66 6c | 61 67 73 29 0a 58 20 2a |ers", fl|ags).X *|
|00001be0| 0a 58 20 2a 20 46 6f 72 | 20 65 61 63 68 20 6c 65 |.X * For| each le|
|00001bf0| 74 74 65 72 2c 20 69 66 | 20 69 74 20 69 73 20 66 |tter, if| it is f|
|00001c00| 6f 75 6e 64 20 69 6e 20 | 61 20 73 77 69 74 63 68 |ound in |a switch|
|00001c10| 20 77 68 69 63 68 20 63 | 6f 6e 74 61 69 6e 73 0a | which c|ontains.|
|00001c20| 58 20 2a 20 6f 6e 6c 79 | 20 76 61 6c 69 64 20 6c |X * only| valid l|
|00001c30| 65 74 74 65 72 73 20 66 | 72 6f 6d 20 74 68 65 20 |etters f|rom the |
|00001c40| 73 65 71 75 65 6e 63 65 | 20 22 6c 65 74 74 65 72 |sequence| "letter|
|00001c50| 73 22 20 74 68 65 6e 20 | 74 68 65 20 63 6f 72 72 |s" then |the corr|
|00001c60| 65 73 70 6f 6e 64 69 6e | 67 0a 58 20 2a 20 66 6c |espondin|g.X * fl|
|00001c70| 61 67 20 69 73 20 73 65 | 74 20 74 72 75 65 2c 20 |ag is se|t true, |
|00001c80| 65 6c 73 65 20 73 65 74 | 20 66 61 6c 73 65 2e 20 |else set| false. |
|00001c90| 54 68 65 20 66 6c 61 67 | 73 20 63 6f 75 6e 74 20 |The flag|s count |
|00001ca0| 74 68 65 20 6e 75 6d 62 | 65 72 20 6f 66 20 6f 63 |the numb|er of oc|
|00001cb0| 63 75 72 72 65 6e 63 65 | 73 0a 58 0a 58 20 2a 20 |currence|s.X.X * |
|00001cc0| 6f 66 20 74 68 65 20 73 | 77 69 74 63 68 20 6c 65 |of the s|witch le|
|00001cd0| 74 74 65 72 2e 20 54 68 | 75 73 2c 20 74 68 65 20 |tter. Th|us, the |
|00001ce0| 70 72 6f 67 72 61 6d 20 | 63 61 6e 20 75 73 65 20 |program |can use |
|00001cf0| 72 65 70 65 74 69 74 69 | 6f 6e 20 66 6f 72 0a 58 |repetiti|on for.X|
|00001d00| 20 2a 20 65 6d 70 68 61 | 73 69 73 2e 0a 58 20 2a | * empha|sis..X *|
|00001d10| 20 65 2e 67 2e 20 6c 65 | 74 74 65 72 20 22 76 22 | e.g. le|tter "v"|
|00001d20| 20 66 6f 72 20 76 65 72 | 62 6f 73 69 74 79 3b 20 | for ver|bosity; |
|00001d30| 2d 76 76 20 77 6f 75 6c | 64 20 6d 65 61 6e 20 65 |-vv woul|d mean e|
|00001d40| 78 74 72 61 20 76 65 72 | 62 6f 73 65 2e 0a 58 20 |xtra ver|bose..X |
|00001d50| 2a 0a 58 20 2a 20 48 49 | 53 54 4f 52 59 0a 58 20 |*.X * HI|STORY.X |
|00001d60| 2a 20 31 39 2d 53 65 70 | 2d 38 36 20 20 4c 65 6f |* 19-Sep|-86  Leo|
|00001d70| 6e 61 72 64 20 48 61 6d | 65 79 20 28 6c 67 68 29 |nard Ham|ey (lgh)|
|00001d80| 20 61 74 20 43 61 72 6e | 65 67 69 65 2d 4d 65 6c | at Carn|egie-Mel|
|00001d90| 6c 6f 6e 20 55 6e 69 76 | 65 72 73 69 74 79 0a 58 |lon Univ|ersity.X|
|00001da0| 20 2a 09 46 69 78 65 64 | 20 62 75 67 20 77 68 69 | *.Fixed| bug whi|
|00001db0| 63 68 20 61 6c 6c 6f 77 | 65 64 20 61 20 6c 6f 6e |ch allow|ed a lon|
|00001dc0| 65 20 68 79 70 68 65 6e | 20 74 6f 20 62 65 20 6d |e hyphen| to be m|
|00001dd0| 61 74 63 68 65 64 20 61 | 73 20 61 20 66 6c 61 67 |atched a|s a flag|
|00001de0| 73 0a 58 20 2a 09 61 72 | 67 75 6d 65 6e 74 20 77 |s.X *.ar|gument w|
|00001df0| 69 74 68 20 6e 6f 20 66 | 6c 61 67 73 2e 0a 58 20 |ith no f|lags..X |
|00001e00| 2a 0a 58 20 2a 20 20 39 | 2d 41 75 67 2d 38 36 20 |*.X *  9|-Aug-86 |
|00001e10| 20 4c 65 6f 6e 61 72 64 | 20 48 61 6d 65 79 20 28 | Leonard| Hamey (|
|00001e20| 6c 67 68 29 20 61 74 20 | 43 61 72 6e 65 67 69 65 |lgh) at |Carnegie|
|00001e30| 2d 4d 65 6c 6c 6f 6e 20 | 55 6e 69 76 65 72 73 69 |-Mellon |Universi|
|00001e40| 74 79 0a 58 20 2a 09 43 | 72 65 61 74 65 64 2e 0a |ty.X *.C|reated..|
|00001e50| 58 20 2a 2f 0a 58 0a 58 | 76 6f 69 64 20 73 77 5f |X */.X.X|void sw_|
|00001e60| 66 6c 61 67 73 28 61 63 | 2c 20 61 76 2c 20 6c 65 |flags(ac|, av, le|
|00001e70| 74 74 65 72 73 2c 20 66 | 6c 61 67 73 29 0a 58 69 |tters, f|lags).Xi|
|00001e80| 6e 74 20 2a 61 63 3b 0a | 58 72 65 67 69 73 74 65 |nt *ac;.|Xregiste|
|00001e90| 72 20 63 68 61 72 20 2a | 2a 61 76 3b 0a 58 72 65 |r char *|*av;.Xre|
|00001ea0| 67 69 73 74 65 72 20 63 | 68 61 72 20 2a 6c 65 74 |gister c|har *let|
|00001eb0| 74 65 72 73 3b 0a 58 72 | 65 67 69 73 74 65 72 20 |ters;.Xr|egister |
|00001ec0| 69 6e 74 20 2a 66 6c 61 | 67 73 3b 0a 58 7b 0a 58 |int *fla|gs;.X{.X|
|00001ed0| 20 20 72 65 67 69 73 74 | 65 72 20 63 68 61 72 20 |  regist|er char |
|00001ee0| 2a 70 3b 0a 58 20 20 72 | 65 67 69 73 74 65 72 20 |*p;.X  r|egister |
|00001ef0| 69 6e 74 20 69 2c 20 6a | 3b 0a 58 20 20 69 66 20 |int i, j|;.X  if |
|00001f00| 28 6c 65 74 74 65 72 73 | 5b 30 5d 20 3d 3d 20 27 |(letters|[0] == '|
|00001f10| 2d 27 29 0a 58 20 20 20 | 20 6c 65 74 74 65 72 73 |-').X   | letters|
|00001f20| 2b 2b 3b 0a 58 20 20 66 | 6f 72 20 28 69 20 3d 20 |++;.X  f|or (i = |
|00001f30| 30 3b 20 6c 65 74 74 65 | 72 73 5b 69 5d 20 21 3d |0; lette|rs[i] !=|
|00001f40| 20 27 5c 30 27 3b 20 69 | 2b 2b 29 0a 58 20 20 20 | '\0'; i|++).X   |
|00001f50| 20 66 6c 61 67 73 5b 69 | 5d 20 3d 20 30 3b 0a 58 | flags[i|] = 0;.X|
|00001f60| 20 20 66 6f 72 20 28 69 | 20 3d 20 2a 61 63 3b 20 |  for (i| = *ac; |
|00001f70| 2d 2d 69 20 3e 3d 20 31 | 3b 20 29 0a 58 20 20 7b |--i >= 1|; ).X  {|
|00001f80| 0a 58 20 20 20 20 70 20 | 3d 20 61 76 5b 69 5d 3b |.X    p |= av[i];|
|00001f90| 0a 58 20 20 20 20 69 66 | 20 28 2a 70 20 3d 3d 20 |.X    if| (*p == |
|00001fa0| 27 2d 27 20 26 26 20 70 | 5b 31 5d 20 21 3d 20 27 |'-' && p|[1] != '|
|00001fb0| 5c 30 27 29 0a 58 20 20 | 20 20 7b 0a 58 20 20 20 |\0').X  |  {.X   |
|00001fc0| 20 20 20 66 6f 72 20 28 | 70 2b 2b 3b 20 2a 70 20 |   for (|p++; *p |
|00001fd0| 21 3d 20 27 5c 30 27 3b | 20 70 2b 2b 29 0a 58 09 |!= '\0';| p++).X.|
|00001fe0| 69 66 20 28 73 74 72 63 | 68 72 20 28 6c 65 74 74 |if (strc|hr (lett|
|00001ff0| 65 72 73 2c 20 2a 70 29 | 20 3d 3d 20 30 29 0a 58 |ers, *p)| == 0).X|
|00002000| 09 20 20 62 72 65 61 6b | 3b 0a 58 20 20 20 20 20 |.  break|;.X     |
|00002010| 20 69 66 20 28 2a 70 20 | 21 3d 20 27 5c 30 27 29 | if (*p |!= '\0')|
|00002020| 0a 58 09 63 6f 6e 74 69 | 6e 75 65 3b 0a 58 20 20 |.X.conti|nue;.X  |
|00002030| 20 20 20 20 66 6f 72 20 | 28 70 20 3d 20 61 76 5b |    for |(p = av[|
|00002040| 69 5d 2b 31 3b 20 2a 70 | 20 21 3d 20 27 5c 30 27 |i]+1; *p| != '\0'|
|00002050| 3b 20 70 2b 2b 29 0a 58 | 20 20 20 20 20 20 7b 20 |; p++).X|      { |
|00002060| 2f 2a 0a 58 09 20 2a 20 | 43 6f 75 6e 74 20 6f 63 |/*.X. * |Count oc|
|00002070| 63 75 72 72 65 6e 63 65 | 73 20 6f 66 20 74 68 65 |currence|s of the|
|00002080| 20 66 6c 61 67 0a 58 09 | 20 2a 2f 0a 58 09 66 6c | flag.X.| */.X.fl|
|00002090| 61 67 73 5b 73 74 72 63 | 68 72 28 6c 65 74 74 65 |ags[strc|hr(lette|
|000020a0| 72 73 2c 2a 70 29 20 2d | 20 6c 65 74 74 65 72 73 |rs,*p) -| letters|
|000020b0| 5d 2b 2b 3b 0a 58 20 20 | 20 20 20 20 7d 0a 58 20 |]++;.X  |    }.X |
|000020c0| 20 20 20 20 20 2f 2a 0a | 58 20 20 20 20 20 20 20 |     /*.|X       |
|000020d0| 2a 20 44 69 73 63 61 72 | 64 20 61 72 67 75 6d 65 |* Discar|d argume|
|000020e0| 6e 74 2e 0a 58 20 20 20 | 20 20 20 20 2a 2f 0a 58 |nt..X   |    */.X|
|000020f0| 20 20 20 20 20 20 28 2a | 61 63 29 2d 2d 3b 0a 58 |      (*|ac)--;.X|
|00002100| 20 20 20 20 20 20 66 6f | 72 20 28 6a 20 3d 20 69 |      fo|r (j = i|
|00002110| 3b 20 6a 20 3c 20 2a 61 | 63 3b 20 6a 2b 2b 29 0a |; j < *a|c; j++).|
|00002120| 58 09 61 76 5b 6a 5d 20 | 3d 20 61 76 5b 6a 2b 31 |X.av[j] |= av[j+1|
|00002130| 5d 3b 0a 58 20 20 20 20 | 20 20 61 76 5b 6a 5d 20 |];.X    |  av[j] |
|00002140| 3d 20 4e 55 4c 4c 3b 0a | 58 20 20 20 20 7d 0a 58 |= NULL;.|X    }.X|
|00002150| 20 20 7d 0a 58 7d 0a 58 | 0a 45 4e 44 5f 4f 46 5f |  }.X}.X|.END_OF_|
|00002160| 46 49 4c 45 0a 69 66 20 | 74 65 73 74 20 37 35 34 |FILE.if |test 754|
|00002170| 33 20 2d 6e 65 20 60 77 | 63 20 2d 63 20 3c 27 64 |3 -ne `w|c -c <'d|
|00002180| 75 2e 63 27 60 3b 20 74 | 68 65 6e 0a 20 20 20 20 |u.c'`; t|hen.    |
|00002190| 65 63 68 6f 20 73 68 61 | 72 3a 20 5c 22 27 64 75 |echo sha|r: \"'du|
|000021a0| 2e 63 27 5c 22 20 75 6e | 70 61 63 6b 65 64 20 77 |.c'\" un|packed w|
|000021b0| 69 74 68 20 77 72 6f 6e | 67 20 73 69 7a 65 21 0a |ith wron|g size!.|
|000021c0| 66 69 0a 23 20 65 6e 64 | 20 6f 66 20 27 64 75 2e |fi.# end| of 'du.|
|000021d0| 63 27 0a 66 69 0a 65 63 | 68 6f 20 73 68 61 72 3a |c'.fi.ec|ho shar:|
|000021e0| 20 45 6e 64 20 6f 66 20 | 73 68 65 6c 6c 20 61 72 | End of |shell ar|
|000021f0| 63 68 69 76 65 2e 0a 65 | 78 69 74 20 30 0a 65 78 |chive..e|xit 0.ex|
|00002200| 69 74 20 30 20 23 20 4a | 75 73 74 20 69 6e 20 63 |it 0 # J|ust in c|
|00002210| 61 73 65 2e 2e 2e 0a 2d | 2d 20 0a 4b 65 6e 74 20 |ase....-|- .Kent |
|00002220| 4c 61 6e 64 66 69 65 6c | 64 20 20 20 20 20 20 20 |Landfiel|d       |
|00002230| 20 20 20 20 20 20 20 20 | 20 20 20 20 49 4e 54 45 |        |    INTE|
|00002240| 52 4e 45 54 3a 20 6b 65 | 6e 74 40 73 70 61 72 6b |RNET: ke|nt@spark|
|00002250| 79 2e 49 4d 44 2e 53 74 | 65 72 6c 69 6e 67 2e 43 |y.IMD.St|erling.C|
|00002260| 4f 4d 0a 53 74 65 72 6c | 69 6e 67 20 53 6f 66 74 |OM.Sterl|ing Soft|
|00002270| 77 61 72 65 2c 20 49 4d | 44 20 20 20 20 20 20 20 |ware, IM|D       |
|00002280| 20 20 20 20 55 55 43 50 | 3a 20 20 20 20 20 75 75 |    UUCP|:     uu|
|00002290| 6e 65 74 21 73 70 61 72 | 6b 79 21 6b 65 6e 74 0a |net!spar|ky!kent.|
|000022a0| 50 68 6f 6e 65 3a 20 20 | 20 20 28 34 30 32 29 20 |Phone:  |  (402) |
|000022b0| 32 39 31 2d 38 33 30 30 | 20 20 20 20 20 20 20 20 |291-8300|        |
|000022c0| 20 46 41 58 3a 20 20 20 | 20 20 20 28 34 30 32 29 | FAX:   |   (402)|
|000022d0| 20 32 39 31 2d 34 33 36 | 32 0a 50 6c 65 61 73 65 | 291-436|2.Please|
|000022e0| 20 73 65 6e 64 20 63 6f | 6d 70 2e 73 6f 75 72 63 | send co|mp.sourc|
|000022f0| 65 73 2e 6d 69 73 63 2d | 72 65 6c 61 74 65 64 20 |es.misc-|related |
|00002300| 6d 61 69 6c 20 74 6f 20 | 6b 65 6e 74 40 75 75 6e |mail to |kent@uun|
|00002310| 65 74 2e 75 75 2e 6e 65 | 74 2e 0a 0a 0a          |et.uu.ne|t....   |
+--------+-------------------------+-------------------------+--------+--------+