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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 73 35 6c 61 73 74 2f 00 | 00 00 00 00 00 00 00 00 |s5last/.|........|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|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 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000060| 00 00 00 00 20 20 20 37 | 35 35 20 00 20 20 20 32 |....   7|55 .   2|
|00000070| 34 33 20 00 20 20 20 20 | 31 32 20 00 20 20 20 20 |43 .    |12 .    |
|00000080| 20 20 20 20 20 20 30 20 | 20 34 34 30 34 33 32 30 |      0 | 4404320|
|00000090| 33 32 36 20 20 20 35 32 | 32 34 00 20 00 00 00 00 |326   52|24. ....|
|000000a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000000f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000100| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000110| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000120| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000130| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000140| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000150| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000160| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000170| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000180| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000190| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000200| 73 35 6c 61 73 74 2f 53 | 68 61 72 46 69 6c 65 2e |s5last/S|harFile.|
|00000210| 48 65 61 64 65 72 73 00 | 00 00 00 00 00 00 00 00 |Headers.|........|
|00000220| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000230| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000240| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000250| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000260| 00 00 00 00 20 20 20 36 | 34 34 20 00 20 20 20 32 |....   6|44 .   2|
|00000270| 34 33 20 00 20 20 20 20 | 31 32 20 00 20 20 20 20 |43 .    |12 .    |
|00000280| 20 20 20 31 37 35 37 20 | 20 34 34 30 34 33 32 30 |   1757 | 4404320|
|00000290| 33 33 33 20 20 31 30 33 | 31 33 00 20 00 00 00 00 |333  103|13. ....|
|000002a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000002f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000300| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000310| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000320| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000330| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000340| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000350| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000360| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000370| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000380| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000390| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000003f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000400| 3d 3d 3d 20 73 35 6c 61 | 73 74 2e 73 68 61 72 20 |=== s5la|st.shar |
|00000410| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00000420| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 0a 46 72 6f 6d 20 72 |========|=.From r|
|00000430| 69 61 63 73 21 65 6f 73 | 21 61 6d 65 6c 69 61 21 |iacs!eos|!amelia!|
|00000440| 61 6d 65 73 21 6e 63 61 | 72 21 74 61 6e 6b 21 6e |ames!nca|r!tank!n|
|00000450| 69 63 2e 4d 52 2e 4e 45 | 54 21 68 61 6c 21 6e 63 |ic.MR.NE|T!hal!nc|
|00000460| 6f 61 73 74 21 61 6c 6c | 62 65 72 79 20 53 75 6e |oast!all|bery Sun|
|00000470| 20 44 65 63 20 31 31 20 | 31 31 3a 33 37 3a 30 37 | Dec 11 |11:37:07|
|00000480| 20 50 53 54 20 31 39 38 | 38 0a 0a 50 6f 73 74 69 | PST 198|8..Posti|
|00000490| 6e 67 2d 6e 75 6d 62 65 | 72 3a 20 56 6f 6c 75 6d |ng-numbe|r: Volum|
|000004a0| 65 20 35 2c 20 49 73 73 | 75 65 20 37 38 0a 53 75 |e 5, Iss|ue 78.Su|
|000004b0| 62 6d 69 74 74 65 64 2d | 62 79 3a 20 22 43 68 72 |bmitted-|by: "Chr|
|000004c0| 69 73 20 4b 65 72 6e 22 | 20 3c 63 6b 65 72 6e 40 |is Kern"| <ckern@|
|000004d0| 6b 69 6c 6c 65 72 2e 64 | 61 6c 6c 61 73 2e 74 78 |killer.d|allas.tx|
|000004e0| 2e 75 73 3e 0a 41 72 63 | 68 69 76 65 2d 6e 61 6d |.us>.Arc|hive-nam|
|000004f0| 65 3a 20 6c 61 73 74 32 | 2e 32 2e 73 35 0a 0a 42 |e: last2|.2.s5..B|
|00000500| 72 61 6e 64 6f 6e 20 2d | 2d 0a 0a 4d 79 20 69 64 |randon -|-..My id|
|00000510| 69 6f 73 79 6e 63 72 61 | 74 69 63 20 69 6d 70 6c |iosyncra|tic impl|
|00000520| 65 6d 65 6e 74 61 74 69 | 6f 6e 20 6f 66 20 61 20 |ementati|on of a |
|00000530| 42 53 44 20 6c 61 73 74 | 28 31 29 2d 73 74 79 6c |BSD last|(1)-styl|
|00000540| 65 20 70 72 6f 67 72 61 | 6d 0a 66 6f 72 20 53 79 |e progra|m.for Sy|
|00000550| 73 74 65 6d 20 56 20 68 | 61 64 20 6f 6e 65 20 69 |stem V h|ad one i|
|00000560| 64 69 6f 73 79 6e 63 72 | 61 73 79 20 49 20 64 69 |diosyncr|asy I di|
|00000570| 64 6e 27 74 20 69 6e 74 | 65 6e 64 3a 20 77 68 65 |dn't int|end: whe|
|00000580| 6e 20 69 6e 76 6f 6b 65 | 64 0a 77 69 74 68 20 61 |n invoke|d.with a|
|00000590| 20 75 73 65 72 20 6e 61 | 6d 65 2c 20 69 74 20 66 | user na|me, it f|
|000005a0| 61 69 6c 65 64 20 74 6f | 20 6d 61 74 63 68 20 6c |ailed to| match l|
|000005b0| 6f 67 69 6e 73 20 74 68 | 61 74 20 77 65 72 65 20 |ogins th|at were |
|000005c0| 6c 6f 6e 67 65 72 20 74 | 68 61 6e 0a 65 69 67 68 |longer t|han.eigh|
|000005d0| 74 20 63 68 61 72 61 63 | 74 65 72 73 2e 20 20 54 |t charac|ters.  T|
|000005e0| 68 61 74 20 69 73 20 74 | 68 65 20 73 69 7a 65 20 |hat is t|he size |
|000005f0| 6f 66 20 74 68 65 20 75 | 74 5f 75 73 65 72 20 66 |of the u|t_user f|
|00000600| 69 65 6c 64 20 69 6e 0a | 2f 65 74 63 2f 77 74 6d |ield in.|/etc/wtm|
|00000610| 70 2e 20 20 48 6f 77 65 | 76 65 72 2c 20 69 74 20 |p.  Howe|ver, it |
|00000620| 69 73 20 70 6f 73 73 69 | 62 6c 65 20 74 6f 20 63 |is possi|ble to c|
|00000630| 72 65 61 74 65 20 61 20 | 6c 6f 67 69 6e 20 6e 61 |reate a |login na|
|00000640| 6d 65 20 74 68 61 74 0a | 68 61 73 20 6d 6f 72 65 |me that.|has more|
|00000650| 20 74 68 61 6e 20 65 69 | 67 68 74 20 63 68 61 72 | than ei|ght char|
|00000660| 61 63 74 65 72 73 2e 20 | 20 28 41 6c 77 61 79 73 |acters. | (Always|
|00000670| 20 74 65 73 74 20 66 6f | 72 20 6f 62 76 69 6f 75 | test fo|r obviou|
|00000680| 73 0a 76 69 6f 6c 61 74 | 69 6f 6e 73 20 6f 66 20 |s.violat|ions of |
|00000690| 62 6f 75 6e 64 61 72 79 | 20 63 6f 6e 64 69 74 69 |boundary| conditi|
|000006a0| 6f 6e 73 2e 20 20 53 69 | 67 68 2e 29 0a 0a 42 65 |ons.  Si|gh.)..Be|
|000006b0| 63 61 75 73 65 20 74 68 | 65 20 70 72 6f 67 72 61 |cause th|e progra|
|000006c0| 6d 20 69 73 20 73 68 6f | 72 74 2c 20 49 20 61 6d |m is sho|rt, I am|
|000006d0| 20 70 72 6f 76 69 64 69 | 6e 67 20 61 20 66 69 78 | providi|ng a fix|
|000006e0| 65 64 20 76 65 72 73 69 | 6f 6e 0a 72 61 74 68 65 |ed versi|on.rathe|
|000006f0| 72 20 74 68 61 6e 20 70 | 6f 73 74 69 6e 67 20 63 |r than p|osting c|
|00000700| 6f 6e 74 65 78 74 20 64 | 69 66 66 73 20 66 6f 72 |ontext d|iffs for|
|00000710| 20 74 68 65 20 6f 72 69 | 67 69 6e 61 6c 20 76 65 | the ori|ginal ve|
|00000720| 72 73 69 6f 6e 2c 0a 77 | 68 69 63 68 20 79 6f 75 |rsion,.w|hich you|
|00000730| 20 64 69 73 74 72 69 62 | 75 74 65 64 20 61 73 20 | distrib|uted as |
|00000740| 76 30 35 69 30 36 32 2e | 0a 0a 54 68 61 6e 6b 73 |v05i062.|..Thanks|
|00000750| 20 74 6f 20 44 6f 75 67 | 20 57 65 6c 6c 73 20 28 | to Doug| Wells (|
|00000760| 64 6d 77 40 63 6c 6f 75 | 64 39 2e 55 55 43 50 29 |dmw@clou|d9.UUCP)|
|00000770| 20 66 6f 72 20 70 6f 69 | 6e 74 69 6e 67 20 74 68 | for poi|nting th|
|00000780| 69 73 20 6f 75 74 2e 0a | 0a 43 6f 6d 6d 65 6e 74 |is out..|.Comment|
|00000790| 73 20 6f 72 20 72 65 70 | 6f 72 74 73 20 6f 66 20 |s or rep|orts of |
|000007a0| 6f 74 68 65 72 20 62 75 | 67 73 20 73 68 6f 75 6c |other bu|gs shoul|
|000007b0| 64 20 62 65 20 64 69 72 | 65 63 74 65 64 20 74 6f |d be dir|ected to|
|000007c0| 20 6d 79 0a 61 63 63 6f | 75 6e 74 20 63 6b 65 72 | my.acco|unt cker|
|000007d0| 6e 40 6b 69 6c 6c 65 72 | 2e 44 61 6c 6c 61 73 2e |n@killer|.Dallas.|
|000007e0| 54 58 2e 55 53 2e 0a 0a | 43 68 72 69 73 0a 0a 00 |TX.US...|Chris...|
|000007f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000800| 73 35 6c 61 73 74 2f 6c | 61 73 74 2e 63 00 00 00 |s5last/l|ast.c...|
|00000810| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000820| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000830| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000840| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000850| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000860| 00 00 00 00 20 20 20 36 | 34 34 20 00 20 20 20 32 |....   6|44 .   2|
|00000870| 34 33 20 00 20 20 20 20 | 31 32 20 00 20 20 20 20 |43 .    |12 .    |
|00000880| 20 20 20 36 30 36 36 20 | 20 34 34 30 34 33 32 30 |   6066 | 4404320|
|00000890| 33 32 35 20 20 20 36 34 | 32 37 00 20 00 00 00 00 |325   64|27. ....|
|000008a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000008f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000900| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000910| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000920| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000930| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000940| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000950| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000960| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000970| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000980| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000990| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000009f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000a00| 23 69 6e 63 6c 75 64 65 | 20 3c 73 74 64 69 6f 2e |#include| <stdio.|
|00000a10| 68 3e 0a 23 69 6e 63 6c | 75 64 65 20 3c 73 79 73 |h>.#incl|ude <sys|
|00000a20| 2f 74 79 70 65 73 2e 68 | 3e 0a 23 69 6e 63 6c 75 |/types.h|>.#inclu|
|00000a30| 64 65 20 3c 73 74 72 69 | 6e 67 2e 68 3e 0a 23 69 |de <stri|ng.h>.#i|
|00000a40| 6e 63 6c 75 64 65 20 3c | 74 69 6d 65 2e 68 3e 0a |nclude <|time.h>.|
|00000a50| 23 69 6e 63 6c 75 64 65 | 20 3c 75 74 6d 70 2e 68 |#include| <utmp.h|
|00000a60| 3e 0a 0a 0a 23 64 65 66 | 69 6e 65 09 20 4f 57 54 |>...#def|ine. OWT|
|00000a70| 4d 50 5f 46 49 4c 45 09 | 09 22 2f 75 73 72 2f 61 |MP_FILE.|."/usr/a|
|00000a80| 64 6d 2f 61 63 63 74 2f | 6e 69 74 65 2f 6f 77 74 |dm/acct/|nite/owt|
|00000a90| 6d 70 22 09 09 2f 2a 20 | 66 69 6c 65 20 74 6f 20 |mp"../* |file to |
|00000aa0| 73 65 61 72 63 68 20 61 | 66 74 65 72 20 2f 65 74 |search a|fter /et|
|00000ab0| 63 2f 77 74 6d 70 20 2a | 2f 0a 0a 23 64 65 66 69 |c/wtmp *|/..#defi|
|00000ac0| 6e 65 20 20 4c 49 4e 45 | 5f 46 49 45 4c 44 5f 4c |ne  LINE|_FIELD_L|
|00000ad0| 45 4e 09 09 31 32 09 09 | 09 09 09 2f 2a 20 6d 61 |EN..12..|.../* ma|
|00000ae0| 67 69 63 20 6e 75 6d 62 | 65 72 73 20 63 6f 75 72 |gic numb|ers cour|
|00000af0| 74 65 73 79 20 6f 66 20 | 2f 75 73 72 2f 69 6e 63 |tesy of |/usr/inc|
|00000b00| 6c 75 64 65 2f 75 74 6d | 70 2e 68 20 2a 2f 0a 23 |lude/utm|p.h */.#|
|00000b10| 64 65 66 69 6e 65 20 20 | 55 53 45 52 5f 46 49 45 |define  |USER_FIE|
|00000b20| 4c 44 5f 4c 45 4e 09 09 | 20 38 0a 0a 73 74 61 74 |LD_LEN..| 8..stat|
|00000b30| 69 63 20 63 68 61 72 20 | 2a 70 72 6f 67 3b 0a 73 |ic char |*prog;.s|
|00000b40| 74 61 74 69 63 20 63 68 | 61 72 20 2a 77 74 6d 70 |tatic ch|ar *wtmp|
|00000b50| 66 69 6c 65 5b 5d 20 3d | 20 7b 20 4f 57 54 4d 50 |file[] =| { OWTMP|
|00000b60| 5f 46 49 4c 45 2c 20 57 | 54 4d 50 5f 46 49 4c 45 |_FILE, W|TMP_FILE|
|00000b70| 2c 20 4e 55 4c 4c 20 7d | 3b 0a 0a 73 74 72 75 63 |, NULL }|;..struc|
|00000b80| 74 20 6c 69 73 74 20 7b | 0a 09 09 73 74 72 75 63 |t list {|...struc|
|00000b90| 74 20 75 74 6d 70 20 72 | 65 63 3b 0a 09 09 73 74 |t utmp r|ec;...st|
|00000ba0| 72 75 63 74 20 6c 69 73 | 74 20 2a 6e 65 78 74 3b |ruct lis|t *next;|
|00000bb0| 0a 09 09 73 74 72 75 63 | 74 20 6c 69 73 74 20 2a |...struc|t list *|
|00000bc0| 70 72 65 76 69 6f 75 73 | 3b 0a 7d 3b 0a 0a 0a 0a |previous|;.};....|
|00000bd0| 6d 61 69 6e 28 61 72 67 | 63 2c 20 61 72 67 76 29 |main(arg|c, argv)|
|00000be0| 09 09 09 2f 2a 20 6c 61 | 73 74 3a 20 73 68 6f 77 |.../* la|st: show|
|00000bf0| 20 72 65 63 65 6e 74 20 | 6c 6f 67 69 6e 73 20 69 | recent |logins i|
|00000c00| 6e 20 6c 61 73 74 2d 74 | 6f 2d 66 69 72 73 74 20 |n last-t|o-first |
|00000c10| 6f 72 64 65 72 20 2a 2f | 0a 69 6e 74 20 61 72 67 |order */|.int arg|
|00000c20| 63 3b 0a 63 68 61 72 20 | 2a 61 72 67 76 5b 5d 3b |c;.char |*argv[];|
|00000c30| 0a 7b 0a 09 69 6e 74 20 | 20 20 20 69 3b 0a 09 76 |.{..int |   i;..v|
|00000c40| 6f 69 64 20 20 20 70 72 | 70 72 6f 63 28 29 3b 0a |oid   pr|proc();.|
|00000c50| 09 73 74 72 75 63 74 20 | 6c 69 73 74 20 2a 6c 69 |.struct |list *li|
|00000c60| 73 74 70 20 3d 20 4e 55 | 4c 4c 2c 20 2a 70 2c 20 |stp = NU|LL, *p, |
|00000c70| 2a 61 64 64 6c 69 73 74 | 28 29 3b 0a 09 73 74 72 |*addlist|();..str|
|00000c80| 75 63 74 20 75 74 6d 70 | 20 2a 65 6e 74 72 79 3b |uct utmp| *entry;|
|00000c90| 0a 09 65 78 74 65 72 6e | 20 76 6f 69 64 20 75 74 |..extern| void ut|
|00000ca0| 6d 70 6e 61 6d 65 28 29 | 3b 0a 09 65 78 74 65 72 |mpname()|;..exter|
|00000cb0| 6e 20 73 74 72 75 63 74 | 20 75 74 6d 70 20 2a 67 |n struct| utmp *g|
|00000cc0| 65 74 75 74 65 6e 74 28 | 29 3b 0a 0a 09 70 72 6f |etutent(|);...pro|
|00000cd0| 67 20 3d 20 61 72 67 76 | 5b 30 5d 3b 0a 0a 09 66 |g = argv|[0];...f|
|00000ce0| 6f 72 20 28 69 20 3d 20 | 30 3b 20 77 74 6d 70 66 |or (i = |0; wtmpf|
|00000cf0| 69 6c 65 5b 69 5d 20 21 | 3d 20 4e 55 4c 4c 3b 20 |ile[i] !|= NULL; |
|00000d00| 69 2b 2b 29 20 7b 0a 09 | 09 75 74 6d 70 6e 61 6d |i++) {..|.utmpnam|
|00000d10| 65 28 77 74 6d 70 66 69 | 6c 65 5b 69 5d 29 3b 0a |e(wtmpfi|le[i]);.|
|00000d20| 09 09 77 68 69 6c 65 20 | 28 28 65 6e 74 72 79 20 |..while |((entry |
|00000d30| 3d 20 67 65 74 75 74 65 | 6e 74 28 29 29 20 21 3d |= getute|nt()) !=|
|00000d40| 20 4e 55 4c 4c 29 0a 09 | 09 09 6c 69 73 74 70 20 | NULL)..|..listp |
|00000d50| 3d 20 61 64 64 6c 69 73 | 74 28 6c 69 73 74 70 2c |= addlis|t(listp,|
|00000d60| 20 65 6e 74 72 79 29 3b | 0a 09 7d 0a 0a 09 2f 2a | entry);|..}.../*|
|00000d70| 20 6c 69 73 74 70 20 70 | 6f 69 6e 74 73 20 74 6f | listp p|oints to|
|00000d80| 20 6d 6f 73 74 20 72 65 | 63 65 6e 74 20 77 74 6d | most re|cent wtm|
|00000d90| 70 20 65 6e 74 72 79 20 | 2a 2f 0a 0a 09 66 6f 72 |p entry |*/...for|
|00000da0| 20 28 70 20 3d 20 6c 69 | 73 74 70 3b 20 70 20 21 | (p = li|stp; p !|
|00000db0| 3d 20 4e 55 4c 4c 3b 20 | 70 20 3d 20 70 2d 3e 70 |= NULL; |p = p->p|
|00000dc0| 72 65 76 69 6f 75 73 29 | 0a 09 09 69 66 20 28 70 |revious)|...if (p|
|00000dd0| 2d 3e 72 65 63 2e 75 74 | 5f 74 79 70 65 20 3d 3d |->rec.ut|_type ==|
|00000de0| 20 55 53 45 52 5f 50 52 | 4f 43 45 53 53 29 20 7b | USER_PR|OCESS) {|
|00000df0| 0a 09 09 09 69 66 20 28 | 61 72 67 63 20 3d 3d 20 |....if (|argc == |
|00000e00| 31 29 0a 09 09 09 09 70 | 72 70 72 6f 63 28 70 2c |1).....p|rproc(p,|
|00000e10| 20 6c 69 73 74 70 29 3b | 0a 09 09 09 65 6c 73 65 | listp);|....else|
|00000e20| 0a 09 09 09 09 66 6f 72 | 20 28 69 20 3d 20 31 3b |.....for| (i = 1;|
|00000e30| 20 69 20 3c 20 61 72 67 | 63 3b 20 69 2b 2b 29 20 | i < arg|c; i++) |
|00000e40| 7b 0a 09 09 09 09 09 69 | 66 20 28 73 74 72 6e 63 |{......i|f (strnc|
|00000e50| 6d 70 28 70 2d 3e 72 65 | 63 2e 75 74 5f 75 73 65 |mp(p->re|c.ut_use|
|00000e60| 72 2c 20 61 72 67 76 5b | 69 5d 2c 20 55 53 45 52 |r, argv[|i], USER|
|00000e70| 5f 46 49 45 4c 44 5f 4c | 45 4e 29 20 3d 3d 20 30 |_FIELD_L|EN) == 0|
|00000e80| 29 20 7b 0a 09 09 09 09 | 09 09 70 72 70 72 6f 63 |) {.....|..prproc|
|00000e90| 28 70 2c 20 6c 69 73 74 | 70 29 3b 0a 09 09 09 09 |(p, list|p);.....|
|00000ea0| 09 09 62 72 65 61 6b 3b | 0a 09 09 09 09 09 7d 0a |..break;|......}.|
|00000eb0| 09 09 09 09 7d 0a 09 09 | 7d 0a 0a 09 72 65 74 75 |....}...|}...retu|
|00000ec0| 72 6e 20 28 30 29 3b 0a | 7d 0a 0a 0a 0a 73 74 72 |rn (0);.|}....str|
|00000ed0| 75 63 74 20 6c 69 73 74 | 20 2a 61 64 64 6c 69 73 |uct list| *addlis|
|00000ee0| 74 28 68 65 61 64 2c 20 | 77 74 6d 70 29 09 2f 2a |t(head, |wtmp)./*|
|00000ef0| 20 61 64 64 20 6e 65 77 | 20 77 74 6d 70 20 65 6e | add new| wtmp en|
|00000f00| 74 72 79 20 74 6f 20 68 | 65 61 64 20 6f 66 20 6c |try to h|ead of l|
|00000f10| 69 73 74 20 2a 2f 0a 73 | 74 72 75 63 74 20 6c 69 |ist */.s|truct li|
|00000f20| 73 74 20 2a 68 65 61 64 | 3b 0a 73 74 72 75 63 74 |st *head|;.struct|
|00000f30| 20 75 74 6d 70 20 2a 77 | 74 6d 70 3b 0a 7b 0a 09 | utmp *w|tmp;.{..|
|00000f40| 76 6f 69 64 09 20 65 72 | 72 65 78 69 74 28 29 3b |void. er|rexit();|
|00000f50| 0a 09 72 65 67 69 73 74 | 65 72 20 73 74 72 75 63 |..regist|er struc|
|00000f60| 74 20 6c 69 73 74 20 2a | 6e 65 77 3b 0a 09 65 78 |t list *|new;..ex|
|00000f70| 74 65 72 6e 09 20 63 68 | 61 72 20 2a 6d 61 6c 6c |tern. ch|ar *mall|
|00000f80| 6f 63 28 29 3b 0a 0a 09 | 69 66 20 28 28 6e 65 77 |oc();...|if ((new|
|00000f90| 20 3d 20 28 73 74 72 75 | 63 74 20 6c 69 73 74 20 | = (stru|ct list |
|00000fa0| 2a 29 20 6d 61 6c 6c 6f | 63 28 73 69 7a 65 6f 66 |*) mallo|c(sizeof|
|00000fb0| 28 73 74 72 75 63 74 20 | 6c 69 73 74 29 29 29 20 |(struct |list))) |
|00000fc0| 3d 3d 20 4e 55 4c 4c 29 | 0a 09 09 65 72 72 65 78 |== NULL)|...errex|
|00000fd0| 69 74 28 22 6d 65 6d 6f | 72 79 20 65 72 72 6f 72 |it("memo|ry error|
|00000fe0| 22 2c 20 4e 55 4c 4c 29 | 3b 0a 09 65 6c 73 65 20 |", NULL)|;..else |
|00000ff0| 7b 0a 09 09 6e 65 77 2d | 3e 72 65 63 20 3d 20 2a |{...new-|>rec = *|
|00001000| 77 74 6d 70 3b 0a 09 09 | 6e 65 77 2d 3e 6e 65 78 |wtmp;...|new->nex|
|00001010| 74 20 3d 20 6e 65 77 3b | 09 09 2f 2a 20 6e 6f 20 |t = new;|../* no |
|00001020| 6e 65 78 74 20 79 65 74 | 20 2a 2f 0a 09 09 6e 65 |next yet| */...ne|
|00001030| 77 2d 3e 70 72 65 76 69 | 6f 75 73 20 3d 20 68 65 |w->previ|ous = he|
|00001040| 61 64 3b 0a 09 09 69 66 | 20 28 68 65 61 64 20 21 |ad;...if| (head !|
|00001050| 3d 20 4e 55 4c 4c 29 0a | 09 09 09 68 65 61 64 2d |= NULL).|...head-|
|00001060| 3e 6e 65 78 74 20 3d 20 | 6e 65 77 3b 0a 09 7d 0a |>next = |new;..}.|
|00001070| 09 72 65 74 75 72 6e 20 | 28 6e 65 77 29 3b 0a 7d |.return |(new);.}|
|00001080| 0a 0a 0a 0a 76 6f 69 64 | 20 70 72 70 72 6f 63 28 |....void| prproc(|
|00001090| 73 74 61 72 74 2c 20 6c | 61 73 74 29 09 09 2f 2a |start, l|ast)../*|
|000010a0| 20 70 72 69 6e 74 20 65 | 6e 74 72 69 65 73 20 66 | print e|ntries f|
|000010b0| 6f 72 20 70 72 6f 63 65 | 73 73 20 2a 2f 0a 73 74 |or proce|ss */.st|
|000010c0| 72 75 63 74 20 6c 69 73 | 74 20 2a 73 74 61 72 74 |ruct lis|t *start|
|000010d0| 2c 20 2a 6c 61 73 74 3b | 0a 7b 0a 09 76 6f 69 64 |, *last;|.{..void|
|000010e0| 09 20 70 72 65 6e 74 72 | 79 28 29 3b 0a 09 72 65 |. prentr|y();..re|
|000010f0| 67 69 73 74 65 72 20 73 | 74 72 75 63 74 20 6c 69 |gister s|truct li|
|00001100| 73 74 20 2a 70 3b 0a 0a | 09 70 72 65 6e 74 72 79 |st *p;..|.prentry|
|00001110| 28 73 74 61 72 74 2d 3e | 72 65 63 29 3b 0a 09 66 |(start->|rec);..f|
|00001120| 6f 72 20 28 70 20 3d 20 | 73 74 61 72 74 2d 3e 6e |or (p = |start->n|
|00001130| 65 78 74 3b 20 70 20 21 | 3d 20 6c 61 73 74 3b 20 |ext; p !|= last; |
|00001140| 70 20 3d 20 70 2d 3e 6e | 65 78 74 29 0a 09 09 69 |p = p->n|ext)...i|
|00001150| 66 20 28 70 2d 3e 72 65 | 63 2e 75 74 5f 70 69 64 |f (p->re|c.ut_pid|
|00001160| 20 3d 3d 20 73 74 61 72 | 74 2d 3e 72 65 63 2e 75 | == star|t->rec.u|
|00001170| 74 5f 70 69 64 29 0a 09 | 09 09 70 72 65 6e 74 72 |t_pid)..|..prentr|
|00001180| 79 28 70 2d 3e 72 65 63 | 29 3b 0a 09 70 75 74 63 |y(p->rec|);..putc|
|00001190| 68 61 72 28 27 5c 6e 27 | 29 3b 0a 7d 0a 0a 0a 09 |har('\n'|);.}....|
|000011a0| 0a 76 6f 69 64 20 70 72 | 65 6e 74 72 79 28 77 74 |.void pr|entry(wt|
|000011b0| 6d 70 29 09 09 09 2f 2a | 20 70 72 69 6e 74 20 77 |mp).../*| print w|
|000011c0| 74 6d 70 20 65 6e 74 72 | 79 20 2a 2f 0a 73 74 72 |tmp entr|y */.str|
|000011d0| 75 63 74 20 75 74 6d 70 | 20 77 74 6d 70 3b 0a 7b |uct utmp| wtmp;.{|
|000011e0| 0a 09 73 74 61 74 69 63 | 20 63 68 61 72 20 2a 77 |..static| char *w|
|000011f0| 6b 64 61 79 5b 5d 20 3d | 20 7b 20 22 53 75 6e 22 |kday[] =| { "Sun"|
|00001200| 2c 20 22 4d 6f 6e 22 2c | 20 22 54 75 65 22 2c 20 |, "Mon",| "Tue", |
|00001210| 22 57 65 64 22 2c 20 22 | 54 68 75 22 2c 20 22 46 |"Wed", "|Thu", "F|
|00001220| 72 69 22 2c 20 22 53 61 | 74 22 20 7d 3b 0a 09 73 |ri", "Sa|t" };..s|
|00001230| 74 61 74 69 63 20 63 68 | 61 72 20 2a 6d 6f 6e 74 |tatic ch|ar *mont|
|00001240| 68 5b 5d 20 3d 20 7b 20 | 22 4a 61 6e 22 2c 20 22 |h[] = { |"Jan", "|
|00001250| 46 65 62 22 2c 20 22 4d | 61 72 22 2c 20 22 41 70 |Feb", "M|ar", "Ap|
|00001260| 72 22 2c 20 22 4d 61 79 | 22 2c 20 22 4a 75 6e 22 |r", "May|", "Jun"|
|00001270| 2c 20 22 4a 75 6c 22 2c | 20 22 41 75 67 22 2c 20 |, "Jul",| "Aug", |
|00001280| 22 53 65 70 22 2c 20 22 | 4f 63 74 22 2c 20 22 4e |"Sep", "|Oct", "N|
|00001290| 6f 76 22 2c 20 22 44 65 | 63 22 20 7d 3b 0a 0a 09 |ov", "De|c" };...|
|000012a0| 63 68 61 72 20 20 20 6c | 69 6e 65 5b 4c 49 4e 45 |char   l|ine[LINE|
|000012b0| 5f 46 49 45 4c 44 5f 4c | 45 4e 20 2b 20 31 5d 2c |_FIELD_L|EN + 1],|
|000012c0| 20 75 73 65 72 5b 55 53 | 45 52 5f 46 49 45 4c 44 | user[US|ER_FIELD|
|000012d0| 5f 4c 45 4e 20 2b 20 31 | 5d 3b 0a 09 73 74 72 75 |_LEN + 1|];..stru|
|000012e0| 63 74 20 74 6d 20 2a 74 | 69 6d 65 3b 0a 09 65 78 |ct tm *t|ime;..ex|
|000012f0| 74 65 72 6e 20 73 74 72 | 75 63 74 20 74 6d 20 2a |tern str|uct tm *|
|00001300| 6c 6f 63 61 6c 74 69 6d | 65 28 29 3b 0a 0a 09 73 |localtim|e();...s|
|00001310| 74 72 6e 63 70 79 28 6c | 69 6e 65 2c 20 77 74 6d |trncpy(l|ine, wtm|
|00001320| 70 2e 75 74 5f 6c 69 6e | 65 2c 20 4c 49 4e 45 5f |p.ut_lin|e, LINE_|
|00001330| 46 49 45 4c 44 5f 4c 45 | 4e 29 3b 0a 09 73 74 72 |FIELD_LE|N);..str|
|00001340| 6e 63 70 79 28 75 73 65 | 72 2c 20 77 74 6d 70 2e |ncpy(use|r, wtmp.|
|00001350| 75 74 5f 75 73 65 72 2c | 20 55 53 45 52 5f 46 49 |ut_user,| USER_FI|
|00001360| 45 4c 44 5f 4c 45 4e 29 | 3b 0a 09 6c 69 6e 65 5b |ELD_LEN)|;..line[|
|00001370| 4c 49 4e 45 5f 46 49 45 | 4c 44 5f 4c 45 4e 5d 20 |LINE_FIE|LD_LEN] |
|00001380| 3d 20 75 73 65 72 5b 55 | 53 45 52 5f 46 49 45 4c |= user[U|SER_FIEL|
|00001390| 44 5f 4c 45 4e 5d 20 3d | 20 27 5c 30 27 3b 0a 09 |D_LEN] =| '\0';..|
|000013a0| 74 69 6d 65 20 3d 20 6c | 6f 63 61 6c 74 69 6d 65 |time = l|ocaltime|
|000013b0| 28 26 77 74 6d 70 2e 75 | 74 5f 74 69 6d 65 29 3b |(&wtmp.u|t_time);|
|000013c0| 0a 09 73 77 69 74 63 68 | 20 28 77 74 6d 70 2e 75 |..switch| (wtmp.u|
|000013d0| 74 5f 74 79 70 65 29 20 | 7b 0a 09 63 61 73 65 20 |t_type) |{..case |
|000013e0| 55 53 45 52 5f 50 52 4f | 43 45 53 53 3a 0a 09 09 |USER_PRO|CESS:...|
|000013f0| 70 72 69 6e 74 66 28 22 | 25 2d 2a 73 20 25 2d 2a |printf("|%-*s %-*|
|00001400| 73 20 25 73 20 25 73 20 | 25 32 64 20 25 30 32 64 |s %s %s |%2d %02d|
|00001410| 3a 25 30 32 64 22 2c 20 | 55 53 45 52 5f 46 49 45 |:%02d", |USER_FIE|
|00001420| 4c 44 5f 4c 45 4e 2c 20 | 75 73 65 72 2c 20 4c 49 |LD_LEN, |user, LI|
|00001430| 4e 45 5f 46 49 45 4c 44 | 5f 4c 45 4e 2c 20 6c 69 |NE_FIELD|_LEN, li|
|00001440| 6e 65 2c 0a 09 09 09 77 | 6b 64 61 79 5b 74 69 6d |ne,....w|kday[tim|
|00001450| 65 2d 3e 74 6d 5f 77 64 | 61 79 5d 2c 20 6d 6f 6e |e->tm_wd|ay], mon|
|00001460| 74 68 5b 74 69 6d 65 2d | 3e 74 6d 5f 6d 6f 6e 5d |th[time-|>tm_mon]|
|00001470| 2c 20 74 69 6d 65 2d 3e | 74 6d 5f 6d 64 61 79 2c |, time->|tm_mday,|
|00001480| 20 74 69 6d 65 2d 3e 74 | 6d 5f 68 6f 75 72 2c 20 | time->t|m_hour, |
|00001490| 74 69 6d 65 2d 3e 74 6d | 5f 6d 69 6e 29 3b 0a 09 |time->tm|_min);..|
|000014a0| 09 62 72 65 61 6b 3b 0a | 09 63 61 73 65 20 44 45 |.break;.|.case DE|
|000014b0| 41 44 5f 50 52 4f 43 45 | 53 53 3a 0a 09 09 70 72 |AD_PROCE|SS:...pr|
|000014c0| 69 6e 74 66 28 22 20 20 | 2d 20 20 25 30 32 64 3a |intf("  |-  %02d:|
|000014d0| 25 30 32 64 20 25 73 22 | 2c 20 74 69 6d 65 2d 3e |%02d %s"|, time->|
|000014e0| 74 6d 5f 68 6f 75 72 2c | 20 74 69 6d 65 2d 3e 74 |tm_hour,| time->t|
|000014f0| 6d 5f 6d 69 6e 2c 20 77 | 6b 64 61 79 5b 74 69 6d |m_min, w|kday[tim|
|00001500| 65 2d 3e 74 6d 5f 77 64 | 61 79 5d 29 3b 0a 09 09 |e->tm_wd|ay]);...|
|00001510| 62 72 65 61 6b 3b 0a 09 | 64 65 66 61 75 6c 74 3a |break;..|default:|
|00001520| 0a 09 09 73 70 72 69 6e | 74 66 28 6c 69 6e 65 2c |...sprin|tf(line,|
|00001530| 20 22 25 64 22 2c 20 77 | 74 6d 70 2e 75 74 5f 74 | "%d", w|tmp.ut_t|
|00001540| 79 70 65 29 3b 0a 09 09 | 65 72 72 65 78 69 74 28 |ype);...|errexit(|
|00001550| 22 69 6c 6c 65 67 61 6c | 20 77 74 6d 70 2e 75 74 |"illegal| wtmp.ut|
|00001560| 5f 74 79 70 65 20 65 6e | 74 72 79 3a 22 2c 20 6c |_type en|try:", l|
|00001570| 69 6e 65 29 3b 0a 09 7d | 0a 7d 0a 0a 0a 0a 76 6f |ine);..}|.}....vo|
|00001580| 69 64 20 65 72 72 65 78 | 69 74 28 73 31 2c 20 73 |id errex|it(s1, s|
|00001590| 32 29 09 09 09 2f 2a 20 | 70 72 69 6e 74 20 65 72 |2).../* |print er|
|000015a0| 72 6f 72 20 6d 65 73 73 | 61 67 65 20 61 6e 64 20 |ror mess|age and |
|000015b0| 64 69 65 20 2a 2f 0a 63 | 68 61 72 20 73 31 5b 5d |die */.c|har s1[]|
|000015c0| 2c 20 73 32 5b 5d 3b 0a | 7b 0a 09 65 78 74 65 72 |, s2[];.|{..exter|
|000015d0| 6e 20 76 6f 69 64 20 65 | 78 69 74 28 29 3b 0a 0a |n void e|xit();..|
|000015e0| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|000015f0| 20 73 32 20 3d 3d 20 4e | 55 4c 4c 20 3f 20 22 25 | s2 == N|ULL ? "%|
|00001600| 73 3a 20 25 73 5c 6e 22 | 20 3a 20 22 25 73 3a 20 |s: %s\n"| : "%s: |
|00001610| 25 73 20 25 73 5c 6e 22 | 2c 20 70 72 6f 67 2c 20 |%s %s\n"|, prog, |
|00001620| 73 31 2c 20 73 32 29 3b | 0a 09 65 78 69 74 28 2d |s1, s2);|..exit(-|
|00001630| 31 29 3b 0a 7d 0a 00 00 | 00 00 00 00 00 00 00 00 |1);.}...|........|
|00001640| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001650| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001660| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001670| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001680| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001690| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000016a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000016b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000016c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000016d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000016e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000016f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001700| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001710| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001720| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001730| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001740| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001750| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001760| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001770| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001780| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001790| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000017a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000017b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000017c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000017d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000017e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000017f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001800| 73 35 6c 61 73 74 2f 6c | 61 73 74 2e 31 00 00 00 |s5last/l|ast.1...|
|00001810| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001820| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001830| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001840| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001850| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001860| 00 00 00 00 20 20 20 36 | 34 34 20 00 20 20 20 32 |....   6|44 .   2|
|00001870| 34 33 20 00 20 20 20 20 | 31 32 20 00 20 20 20 20 |43 .    |12 .    |
|00001880| 20 20 20 31 30 31 32 20 | 20 34 34 30 34 33 32 30 |   1012 | 4404320|
|00001890| 33 32 37 20 20 20 36 33 | 33 31 00 20 00 00 00 00 |327   63|31. ....|
|000018a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000018b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000018c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000018d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000018e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000018f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001900| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001910| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001920| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001930| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001940| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001950| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001960| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001970| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001980| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001990| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000019a0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000019b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000019c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000019d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000019e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000019f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001a00| 2e 54 48 20 4c 41 53 54 | 20 31 20 56 4f 41 0a 2e |.TH LAST| 1 VOA..|
|00001a10| 53 48 20 4e 41 4d 45 0a | 6c 61 73 74 20 20 5c 2d |SH NAME.|last  \-|
|00001a20| 20 20 73 68 6f 77 20 72 | 65 63 65 6e 74 20 6c 6f |  show r|ecent lo|
|00001a30| 67 69 6e 73 20 69 6e 20 | 6c 61 73 74 2d 74 6f 2d |gins in |last-to-|
|00001a40| 66 69 72 73 74 20 6f 72 | 64 65 72 0a 2e 53 48 20 |first or|der..SH |
|00001a50| 53 59 4e 4f 50 53 49 53 | 0a 2e 42 20 6c 61 73 74 |SYNOPSIS|..B last|
|00001a60| 0a 5b 0a 75 73 65 72 20 | 2e 2e 2e 0a 5d 0a 2e 53 |.[.user |....]..S|
|00001a70| 48 20 44 45 53 43 52 49 | 50 54 49 4f 4e 0a 2e 49 |H DESCRI|PTION..I|
|00001a80| 20 4c 61 73 74 0a 64 69 | 73 70 6c 61 79 73 20 72 | Last.di|splays r|
|00001a90| 65 63 65 6e 74 20 6c 6f | 67 69 6e 20 61 6e 64 20 |ecent lo|gin and |
|00001aa0| 6c 6f 67 6f 75 74 20 74 | 69 6d 65 73 0a 69 6e 20 |logout t|imes.in |
|00001ab0| 6c 61 73 74 2d 74 6f 2d | 66 69 72 73 74 20 6f 72 |last-to-|first or|
|00001ac0| 64 65 72 2e 0a 49 66 20 | 69 6e 76 6f 6b 65 64 20 |der..If |invoked |
|00001ad0| 77 69 74 68 0a 2e 49 52 | 20 75 73 65 72 20 73 2c |with..IR| user s,|
|00001ae0| 0a 6f 75 74 70 75 74 20 | 69 73 20 72 65 73 74 72 |.output |is restr|
|00001af0| 69 63 74 65 64 0a 74 6f | 20 74 68 65 20 6c 6f 67 |icted.to| the log|
|00001b00| 69 6e 20 61 6e 64 20 6c | 6f 67 6f 75 74 20 74 69 |in and l|ogout ti|
|00001b10| 6d 65 73 0a 6f 66 20 74 | 68 65 20 73 70 65 63 69 |mes.of t|he speci|
|00001b20| 66 69 65 64 20 61 63 63 | 6f 75 6e 74 28 73 29 2e |fied acc|ount(s).|
|00001b30| 0a 2e 53 48 20 46 49 4c | 45 53 0a 2e 54 50 20 33 |..SH FIL|ES..TP 3|
|00001b40| 30 0a 2f 65 74 63 2f 77 | 74 6d 70 0a 63 75 72 72 |0./etc/w|tmp.curr|
|00001b50| 65 6e 74 20 61 63 63 6f | 75 6e 74 69 6e 67 20 66 |ent acco|unting f|
|00001b60| 69 6c 65 0a 2e 54 50 20 | 33 30 0a 2f 75 73 72 2f |ile..TP |30./usr/|
|00001b70| 61 64 6d 2f 61 63 63 74 | 2f 6e 69 74 65 2f 6f 77 |adm/acct|/nite/ow|
|00001b80| 74 6d 70 0a 70 72 65 76 | 69 6f 75 73 20 64 61 79 |tmp.prev|ious day|
|00001b90| 27 73 20 61 63 63 6f 75 | 6e 74 69 6e 67 20 66 69 |'s accou|nting fi|
|00001ba0| 6c 65 0a 2e 53 48 20 42 | 55 47 53 0a 43 65 72 74 |le..SH B|UGS.Cert|
|00001bb0| 61 69 6e 20 74 79 70 65 | 73 20 6f 66 20 73 79 73 |ain type|s of sys|
|00001bc0| 74 65 6d 20 65 72 72 6f | 72 73 0a 77 69 6c 6c 20 |tem erro|rs.will |
|00001bd0| 72 65 73 75 6c 74 20 69 | 6e 0a 2e 49 20 6c 61 73 |result i|n..I las|
|00001be0| 74 0a 66 61 69 6c 69 6e | 67 20 74 6f 20 72 65 70 |t.failin|g to rep|
|00001bf0| 6f 72 74 0a 61 20 75 73 | 65 72 27 73 20 6c 6f 67 |ort.a us|er's log|
|00001c00| 6f 75 74 20 74 69 6d 65 | 2e 0a 66 69 72 73 74 20 |out time|..first |
|00001c10| 6f 72 64 65 72 20 2a 2f | 0a 69 6e 74 20 61 72 67 |order */|.int arg|
|00001c20| 63 3b 0a 63 68 61 72 20 | 2a 61 72 67 76 5b 5d 3b |c;.char |*argv[];|
|00001c30| 0a 7b 0a 09 69 6e 74 20 | 20 20 20 69 3b 0a 09 76 |.{..int |   i;..v|
|00001c40| 6f 69 64 20 20 20 70 72 | 70 72 6f 63 28 29 3b 0a |oid   pr|proc();.|
|00001c50| 09 73 74 72 75 63 74 20 | 6c 69 73 74 20 2a 6c 69 |.struct |list *li|
|00001c60| 73 74 70 20 3d 20 4e 55 | 4c 4c 2c 20 2a 70 2c 20 |stp = NU|LL, *p, |
|00001c70| 2a 61 64 64 6c 69 73 74 | 28 29 3b 0a 09 73 74 72 |*addlist|();..str|
|00001c80| 75 63 74 20 75 74 6d 70 | 20 2a 65 6e 74 72 79 3b |uct utmp| *entry;|
|00001c90| 0a 09 65 78 74 65 72 6e | 20 76 6f 69 64 20 75 74 |..extern| void ut|
|00001ca0| 6d 70 6e 61 6d 65 28 29 | 3b 0a 09 65 78 74 65 72 |mpname()|;..exter|
|00001cb0| 6e 20 73 74 72 75 63 74 | 20 75 74 6d 70 20 2a 67 |n struct| utmp *g|
|00001cc0| 65 74 75 74 65 6e 74 28 | 29 3b 0a 0a 09 70 72 6f |etutent(|);...pro|
|00001cd0| 67 20 3d 20 61 72 67 76 | 5b 30 5d 3b 0a 0a 09 66 |g = argv|[0];...f|
|00001ce0| 6f 72 20 28 69 20 3d 20 | 30 3b 20 77 74 6d 70 66 |or (i = |0; wtmpf|
|00001cf0| 69 6c 65 5b 69 5d 20 21 | 3d 20 4e 55 4c 4c 3b 20 |ile[i] !|= NULL; |
|00001d00| 69 2b 2b 29 20 7b 0a 09 | 09 75 74 6d 70 6e 61 6d |i++) {..|.utmpnam|
|00001d10| 65 28 77 74 6d 70 66 69 | 6c 65 5b 69 5d 29 3b 0a |e(wtmpfi|le[i]);.|
|00001d20| 09 09 77 68 69 6c 65 20 | 28 28 65 6e 74 72 79 20 |..while |((entry |
|00001d30| 3d 20 67 65 74 75 74 65 | 6e 74 28 29 29 20 21 3d |= getute|nt()) !=|
|00001d40| 20 4e 55 4c 4c 29 0a 09 | 09 09 6c 69 73 74 70 20 | NULL)..|..listp |
|00001d50| 3d 20 61 64 64 6c 69 73 | 74 28 6c 69 73 74 70 2c |= addlis|t(listp,|
|00001d60| 20 65 6e 74 72 79 29 3b | 0a 09 7d 0a 0a 09 2f 2a | entry);|..}.../*|
|00001d70| 20 6c 69 73 74 70 20 70 | 6f 69 6e 74 73 20 74 6f | listp p|oints to|
|00001d80| 20 6d 6f 73 74 20 72 65 | 63 65 6e 74 20 77 74 6d | most re|cent wtm|
|00001d90| 70 20 65 6e 74 72 79 20 | 2a 2f 0a 0a 09 66 6f 72 |p entry |*/...for|
|00001da0| 20 28 70 20 3d 20 6c 69 | 73 74 70 3b 20 70 20 21 | (p = li|stp; p !|
|00001db0| 3d 20 4e 55 4c 4c 3b 20 | 70 20 3d 20 70 2d 3e 70 |= NULL; |p = p->p|
|00001dc0| 72 65 76 69 6f 75 73 29 | 0a 09 09 69 66 20 28 70 |revious)|...if (p|
|00001dd0| 2d 3e 72 65 63 2e 75 74 | 5f 74 79 70 65 20 3d 3d |->rec.ut|_type ==|
|00001de0| 20 55 53 45 52 5f 50 52 | 4f 43 45 53 53 29 20 7b | USER_PR|OCESS) {|
|00001df0| 0a 09 09 09 69 66 20 28 | 61 72 67 63 20 3d 3d 20 |....if (|argc == |
|00001e00| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e10| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e60| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e80| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001e90| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001ea0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001eb0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001ec0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001ed0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001ee0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001ef0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f00| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f10| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f60| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f80| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001f90| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001fa0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001fb0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001fc0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001fd0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001fe0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001ff0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
+--------+-------------------------+-------------------------+--------+--------+