/ Usenet 1994 January / usenetsourcesnewsgroupsinfomagicjanuary1994.iso / sources / unix / volume3 / rfs / patches1

< prev

next >

MacOS 8.1

Win98

DOS

browse contents

view JSON data

view as text

+--------+-------------------------+-------------------------+--------+--------+
|00000000| 46 72 6f 6d 20 70 61 6e | 64 61 21 67 65 6e 72 61 |From pan|da!genra|
|00000010| 64 21 64 65 63 76 61 78 | 21 64 65 63 77 72 6c 21 |d!decvax|!decwrl!|
|00000020| 70 79 72 61 6d 69 64 21 | 68 70 6c 61 62 73 21 74 |pyramid!|hplabs!t|
|00000030| 65 6b 74 72 6f 6e 69 78 | 21 74 65 6b 63 72 6c 21 |ektronix|!tekcrl!|
|00000040| 74 6f 64 64 62 20 54 68 | 75 20 4a 61 6e 20 32 33 |toddb Th|u Jan 23|
|00000050| 20 30 39 3a 35 34 3a 31 | 38 20 45 53 54 20 31 39 | 09:54:1|8 EST 19|
|00000060| 38 36 0a 41 72 74 69 63 | 6c 65 3a 20 32 32 34 33 |86.Artic|le: 2243|
|00000070| 20 6f 66 20 6e 65 74 2e | 73 6f 75 72 63 65 73 0a | of net.|sources.|
|00000080| 52 65 6c 61 79 2d 56 65 | 72 73 69 6f 6e 3a 20 76 |Relay-Ve|rsion: v|
|00000090| 65 72 73 69 6f 6e 20 42 | 20 32 2e 31 30 2e 32 20 |ersion B| 2.10.2 |
|000000a0| 39 2f 33 2f 38 34 3b 20 | 73 69 74 65 20 74 65 64 |9/3/84; |site ted|
|000000b0| 64 79 2e 55 55 43 50 0a | 50 6f 73 74 69 6e 67 2d |dy.UUCP.|Posting-|
|000000c0| 56 65 72 73 69 6f 6e 3a | 20 76 65 72 73 69 6f 6e |Version:| version|
|000000d0| 20 42 20 32 2e 31 30 2e | 32 20 28 54 65 6b 29 20 | B 2.10.|2 (Tek) |
|000000e0| 39 2f 32 38 2f 38 34 20 | 62 61 73 65 64 20 6f 6e |9/28/84 |based on|
|000000f0| 20 39 2f 31 37 2f 38 34 | 3b 20 73 69 74 65 20 74 | 9/17/84|; site t|
|00000100| 65 6b 63 72 6c 2e 55 55 | 43 50 0a 50 61 74 68 3a |ekcrl.UU|CP.Path:|
|00000110| 20 74 65 64 64 79 21 70 | 61 6e 64 61 21 67 65 6e | teddy!p|anda!gen|
|00000120| 72 61 64 21 64 65 63 76 | 61 78 21 64 65 63 77 72 |rad!decv|ax!decwr|
|00000130| 6c 21 70 79 72 61 6d 69 | 64 21 68 70 6c 61 62 73 |l!pyrami|d!hplabs|
|00000140| 21 74 65 6b 74 72 6f 6e | 69 78 21 74 65 6b 63 72 |!tektron|ix!tekcr|
|00000150| 6c 21 74 6f 64 64 62 0a | 3e 46 72 6f 6d 3a 20 74 |l!toddb.|>From: t|
|00000160| 6f 64 64 62 40 74 65 6b | 63 72 6c 2e 55 55 43 50 |oddb@tek|crl.UUCP|
|00000170| 20 28 54 6f 64 64 20 42 | 72 75 6e 68 6f 66 66 29 | (Todd B|runhoff)|
|00000180| 0a 4e 65 77 73 67 72 6f | 75 70 73 3a 20 6e 65 74 |.Newsgro|ups: net|
|00000190| 2e 73 6f 75 72 63 65 73 | 2e 62 75 67 73 2c 6e 65 |.sources|.bugs,ne|
|000001a0| 74 2e 75 6e 69 78 2d 77 | 69 7a 61 72 64 73 2c 6e |t.unix-w|izards,n|
|000001b0| 65 74 2e 73 6f 75 72 63 | 65 73 0a 53 75 62 6a 65 |et.sourc|es.Subje|
|000001c0| 63 74 3a 20 42 75 67 20 | 66 69 78 65 73 20 66 6f |ct: Bug |fixes fo|
|000001d0| 72 20 52 46 53 0a 4d 65 | 73 73 61 67 65 2d 49 44 |r RFS.Me|ssage-ID|
|000001e0| 3a 20 3c 34 37 38 40 74 | 65 6b 63 72 6c 2e 55 55 |: <478@t|ekcrl.UU|
|000001f0| 43 50 3e 0a 44 61 74 65 | 3a 20 32 31 20 4a 61 6e |CP>.Date|: 21 Jan|
|00000200| 20 38 36 20 32 31 3a 35 | 35 3a 34 33 20 47 4d 54 | 86 21:5|5:43 GMT|
|00000210| 0a 44 61 74 65 2d 52 65 | 63 65 69 76 65 64 3a 20 |.Date-Re|ceived: |
|00000220| 32 33 20 4a 61 6e 20 38 | 36 20 30 31 3a 32 38 3a |23 Jan 8|6 01:28:|
|00000230| 30 33 20 47 4d 54 0a 52 | 65 70 6c 79 2d 54 6f 3a |03 GMT.R|eply-To:|
|00000240| 20 74 6f 64 64 62 40 74 | 65 6b 63 72 6c 2e 55 55 | toddb@t|ekcrl.UU|
|00000250| 43 50 20 28 54 6f 64 64 | 20 42 72 75 6e 68 6f 66 |CP (Todd| Brunhof|
|00000260| 66 29 0a 4f 72 67 61 6e | 69 7a 61 74 69 6f 6e 3a |f).Organ|ization:|
|00000270| 20 54 65 6b 74 72 6f 6e | 69 78 2c 20 42 65 61 76 | Tektron|ix, Beav|
|00000280| 65 72 74 6f 6e 20 4f 52 | 0a 4c 69 6e 65 73 3a 20 |erton OR|.Lines: |
|00000290| 39 33 0a 58 72 65 66 3a | 20 74 65 64 64 79 20 6e |93.Xref:| teddy n|
|000002a0| 65 74 2e 73 6f 75 72 63 | 65 73 2e 62 75 67 73 3a |et.sourc|es.bugs:|
|000002b0| 36 31 37 20 6e 65 74 2e | 75 6e 69 78 2d 77 69 7a |617 net.|unix-wiz|
|000002c0| 61 72 64 73 3a 36 34 32 | 30 20 6e 65 74 2e 73 6f |ards:642|0 net.so|
|000002d0| 75 72 63 65 73 3a 32 32 | 34 33 0a 0a 0a 4d 61 6e |urces:22|43...Man|
|000002e0| 79 20 68 61 76 65 20 69 | 6e 73 74 61 6c 6c 65 64 |y have i|nstalled|
|000002f0| 20 52 46 53 20 61 6e 64 | 20 74 65 6c 6c 20 6d 65 | RFS and| tell me|
|00000300| 20 74 68 61 74 20 74 68 | 65 79 20 61 72 65 20 73 | that th|ey are s|
|00000310| 61 74 69 73 66 69 65 64 | 2e 20 20 41 73 20 61 6e |atisfied|.  As an|
|00000320| 79 6f 6e 65 0a 77 6f 75 | 6c 64 2c 20 49 20 61 6d |yone.wou|ld, I am|
|00000330| 20 67 72 61 74 65 66 75 | 6c 20 74 68 61 74 20 49 | gratefu|l that I|
|00000340| 20 63 6f 75 6c 64 20 63 | 6f 6e 74 72 69 62 75 74 | could c|ontribut|
|00000350| 65 20 73 6f 6d 65 74 68 | 69 6e 67 20 75 73 65 66 |e someth|ing usef|
|00000360| 75 6c 2e 0a 50 6c 65 61 | 73 65 20 73 65 6e 64 20 |ul..Plea|se send |
|00000370| 63 6f 6d 6d 65 6e 74 73 | 20 6f 72 20 66 69 78 65 |comments| or fixe|
|00000380| 73 20 74 6f 20 6d 65 2e | 20 20 49 20 77 69 6c 6c |s to me.|  I will|
|00000390| 20 72 65 70 6f 73 74 20 | 61 73 20 61 70 70 72 6f | repost |as appro|
|000003a0| 70 72 69 61 74 65 2e 0a | 54 68 65 72 65 20 61 72 |priate..|There ar|
|000003b0| 65 20 74 77 6f 20 76 65 | 72 79 20 73 65 72 69 6f |e two ve|ry serio|
|000003c0| 75 73 20 62 75 67 73 20 | 69 6e 20 74 68 65 20 64 |us bugs |in the d|
|000003d0| 69 73 74 72 69 62 75 74 | 69 6f 6e 2e 20 20 57 68 |istribut|ion.  Wh|
|000003e0| 61 74 20 66 6f 6c 6c 6f | 77 73 20 69 73 0a 66 69 |at follo|ws is.fi|
|000003f0| 78 65 73 20 70 6c 75 73 | 20 6d 79 20 72 65 73 70 |xes plus| my resp|
|00000400| 6f 6e 73 65 20 74 6f 20 | 61 20 63 6f 75 70 6c 65 |onse to |a couple|
|00000410| 20 6f 66 20 67 6f 6f 64 | 20 71 75 65 73 74 69 6f | of good| questio|
|00000420| 6e 73 2e 0a 0a 2d 2d 20 | 23 31 20 2d 2d 2d 2d 2d |ns...-- |#1 -----|
|00000430| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000440| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000450| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000460| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 0a 41 6e 20 6f 76 65 |--------|-.An ove|
|00000470| 72 73 69 67 68 74 20 69 | 6e 20 6d 61 6b 69 6e 67 |rsight i|n making|
|00000480| 20 74 68 65 20 64 69 66 | 66 73 2e 20 20 49 66 20 | the dif|fs.  If |
|00000490| 79 6f 75 20 74 72 79 20 | 74 6f 20 65 78 65 63 20 |you try |to exec |
|000004a0| 61 20 70 72 6f 67 72 61 | 6d 20 6f 6e 20 61 0a 72 |a progra|m on a.r|
|000004b0| 65 6d 6f 74 65 20 73 79 | 73 74 65 6d 2c 20 74 68 |emote sy|stem, th|
|000004c0| 65 20 73 79 73 74 65 6d | 20 63 72 61 73 68 65 73 |e system| crashes|
|000004d0| 20 77 69 74 68 20 61 20 | 60 60 70 61 6e 69 63 3a | with a |``panic:|
|000004e0| 20 69 70 75 74 27 27 2e | 20 20 59 6f 75 20 6e 65 | iput''.|  You ne|
|000004f0| 65 64 0a 74 6f 20 66 69 | 78 20 74 68 65 20 65 6e |ed.to fi|x the en|
|00000500| 64 20 6f 66 20 65 78 65 | 63 76 65 20 73 6f 20 74 |d of exe|cve so t|
|00000510| 68 61 74 20 69 74 20 6c | 6f 6f 6b 73 20 6c 69 6b |hat it l|ooks lik|
|00000520| 65 3a 0a 0a 62 61 64 3a | 0a 09 69 66 20 28 62 70 |e:..bad:|..if (bp|
|00000530| 29 0a 09 09 62 72 65 6c | 73 65 28 62 70 29 3b 0a |)...brel|se(bp);.|
|00000540| 09 69 66 20 28 62 6e 6f | 29 0a 09 09 72 6d 66 72 |.if (bno|)...rmfr|
|00000550| 65 65 28 61 72 67 6d 61 | 70 2c 20 28 6c 6f 6e 67 |ee(argma|p, (long|
|00000560| 29 63 74 6f 64 28 63 6c | 72 6e 64 28 28 69 6e 74 |)ctod(cl|rnd((int|
|00000570| 29 20 62 74 6f 63 28 4e | 43 41 52 47 53 29 29 29 |) btoc(N|CARGS)))|
|00000580| 2c 20 62 6e 6f 29 3b 0a | 23 69 66 64 65 66 20 52 |, bno);.|#ifdef R|
|00000590| 45 4d 4f 54 45 46 53 0a | 09 69 66 20 28 72 65 6d |EMOTEFS.|.if (rem|
|000005a0| 6f 74 65 20 3c 20 30 29 | 0a 23 65 6e 64 69 66 20 |ote < 0)|.#endif |
|000005b0| 52 45 4d 4f 54 45 46 53 | 0a 09 69 70 75 74 28 69 |REMOTEFS|..iput(i|
|000005c0| 70 29 3b 0a 7d 0a 0a 49 | 74 20 61 70 70 65 61 72 |p);.}..I|t appear|
|000005d0| 73 20 74 68 61 74 20 34 | 2e 33 20 64 6f 65 73 20 |s that 4|.3 does |
|000005e0| 6e 6f 74 20 6e 65 65 64 | 20 74 68 69 73 20 62 65 |not need| this be|
|000005f0| 63 61 75 73 65 20 69 74 | 20 64 6f 65 73 20 61 0a |cause it| does a.|
|00000600| 09 69 66 20 28 69 70 29 | 0a 09 09 69 70 75 74 28 |.if (ip)|...iput(|
|00000610| 69 70 29 3b 0a 77 68 69 | 63 68 20 61 63 63 6f 6d |ip);.whi|ch accom|
|00000620| 70 6c 69 73 68 65 73 20 | 74 68 65 20 73 61 6d 65 |plishes |the same|
|00000630| 20 74 68 69 6e 67 2e 0a | 2d 2d 20 23 32 20 2d 2d | thing..|-- #2 --|
|00000640| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000650| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000660| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000670| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 0a 49 6e 20 |--------|----.In |
|00000680| 72 6d 74 5f 69 6f 2e 63 | 20 63 68 61 6e 67 65 20 |rmt_io.c| change |
|00000690| 6c 69 6e 65 20 37 37 20 | 73 6f 20 74 68 61 74 20 |line 77 |so that |
|000006a0| 73 6c 65 65 70 28 29 20 | 68 61 73 20 74 68 65 20 |sleep() |has the |
|000006b0| 72 69 67 68 74 20 6e 75 | 6d 62 65 72 20 6f 66 0a |right nu|mber of.|
|000006c0| 61 72 67 75 6d 65 6e 74 | 73 3a 0a 0a 09 73 6c 65 |argument|s:...sle|
|000006d0| 65 70 28 28 63 61 64 64 | 72 5f 74 29 26 72 70 2d |ep((cadd|r_t)&rp-|
|000006e0| 3e 72 5f 73 6f 63 6b 2c | 20 50 5a 45 52 4f 2b 31 |>r_sock,| PZERO+1|
|000006f0| 29 3b 0a 2d 2d 20 63 6f | 6d 6d 65 6e 74 73 20 2d |);.-- co|mments -|
|00000700| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000710| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000720| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000730| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 0a 0a 4b 65 |--------|----..Ke|
|00000740| 6e 20 4c 61 6c 6f 6e 64 | 65 20 77 72 69 74 65 73 |n Lalond|e writes|
|00000750| 3a 0a 3e 54 68 65 20 2f | 73 79 73 2f 72 65 6d 6f |:.>The /|sys/remo|
|00000760| 74 65 20 63 6f 64 65 20 | 67 65 74 73 20 6c 6f 74 |te code |gets lot|
|00000770| 73 20 6f 66 20 63 6f 6d | 70 6c 61 69 6e 74 73 20 |s of com|plaints |
|00000780| 66 72 6f 6d 20 6c 69 6e | 74 3a 0a 3e 6c 61 63 6b |from lin|t:.>lack|
|00000790| 20 6f 66 20 63 61 73 74 | 73 3a 20 28 28 63 68 61 | of cast|s: ((cha|
|000007a0| 72 20 2a 29 30 2c 20 28 | 63 61 64 64 72 5f 74 29 |r *)0, (|caddr_t)|
|000007b0| 29 2c 20 75 6e 75 73 65 | 64 20 76 61 72 69 61 62 |), unuse|d variab|
|000007c0| 6c 65 73 2c 0a 3e 6c 61 | 63 6b 20 6f 66 20 28 76 |les,.>la|ck of (v|
|000007d0| 6f 69 64 29 73 2e 20 20 | 4e 6f 6e 65 20 6f 66 20 |oid)s.  |None of |
|000007e0| 74 68 69 73 20 61 66 66 | 65 63 74 73 20 74 68 65 |this aff|ects the|
|000007f0| 20 67 65 6e 65 72 61 74 | 65 64 20 63 6f 64 65 2c | generat|ed code,|
|00000800| 0a 3e 62 75 74 20 69 74 | 27 73 20 6e 69 63 65 20 |.>but it|'s nice |
|00000810| 74 6f 20 6b 65 65 70 20 | 74 68 65 20 6b 65 72 6e |to keep |the kern|
|00000820| 65 6c 20 6c 69 6e 74 2d | 66 72 65 65 2e 0a 0a 09 |el lint-|free....|
|00000830| 56 65 72 79 20 74 72 75 | 65 2e 0a 0a 3e 53 68 6f |Very tru|e...>Sho|
|00000840| 75 6c 64 6e 27 74 20 72 | 6d 74 69 6f 63 74 6c 28 |uldn't r|mtioctl(|
|00000850| 29 20 61 6e 64 20 72 6d | 74 73 65 6c 65 63 74 28 |) and rm|tselect(|
|00000860| 29 20 72 65 74 75 72 6e | 20 61 6e 20 65 72 72 6f |) return| an erro|
|00000870| 72 2c 20 72 61 74 68 65 | 72 0a 3e 74 68 61 6e 20 |r, rathe|r.>than |
|00000880| 30 3f 0a 09 48 65 72 65 | 20 69 73 20 68 6f 77 20 |0?..Here| is how |
|00000890| 49 20 72 65 6d 65 6d 62 | 65 72 20 69 74 3a 20 20 |I rememb|er it:  |
|000008a0| 74 68 65 20 72 65 6d 6f | 74 65 6f 70 73 20 73 74 |the remo|teops st|
|000008b0| 72 75 63 74 75 72 65 20 | 28 77 68 69 63 68 20 68 |ructure |(which h|
|000008c0| 6f 6c 64 73 20 74 68 65 | 0a 09 72 65 66 65 72 65 |olds the|..refere|
|000008d0| 6e 63 65 20 74 6f 20 72 | 6d 74 69 6f 63 74 6c 28 |nce to r|mtioctl(|
|000008e0| 29 20 61 6e 64 20 72 6d | 74 73 65 6c 65 63 74 28 |) and rm|tselect(|
|000008f0| 29 20 69 73 20 70 75 72 | 65 6c 79 20 66 6f 72 20 |) is pur|ely for |
|00000900| 74 68 65 20 73 61 6b 65 | 20 6f 66 20 74 68 65 0a |the sake| of the.|
|00000910| 09 73 65 6c 65 63 74 28 | 29 20 73 79 73 74 65 6d |.select(|) system|
|00000920| 20 63 61 6c 6c 2e 20 20 | 49 2e 65 2e 20 73 65 6c | call.  |I.e. sel|
|00000930| 65 63 74 28 29 20 63 61 | 6c 6c 73 20 74 68 65 20 |ect() ca|lls the |
|00000940| 73 65 6c 73 63 61 6e 28 | 29 20 77 68 69 63 68 20 |selscan(|) which |
|00000950| 63 61 6c 6c 73 0a 09 74 | 68 65 20 73 65 6c 65 63 |calls..t|he selec|
|00000960| 74 20 72 6f 75 74 69 6e | 65 20 76 69 61 0a 09 09 |t routin|e via...|
|00000970| 28 2a 66 70 2d 3e 66 5f | 6f 70 73 2d 3e 66 6f 5f |(*fp->f_|ops->fo_|
|00000980| 73 65 6c 65 63 74 29 28 | 66 70 2c 20 66 6c 61 67 |select)(|fp, flag|
|00000990| 29 0a 09 57 68 69 63 68 | 20 61 6c 77 61 79 73 20 |)..Which| always |
|000009a0| 72 65 74 75 72 6e 73 20 | 30 2e 20 20 49 74 20 61 |returns |0.  It a|
|000009b0| 70 70 65 61 72 73 20 74 | 68 61 74 20 74 68 69 73 |ppears t|hat this|
|000009c0| 20 73 68 6f 75 6c 64 20 | 72 65 61 6c 6c 79 20 72 | should |really r|
|000009d0| 65 74 75 72 6e 20 61 20 | 31 0a 09 73 6f 20 74 68 |eturn a |1..so th|
|000009e0| 61 74 20 61 20 73 65 6c | 65 63 74 20 6f 6e 20 61 |at a sel|ect on a|
|000009f0| 20 72 65 6d 6f 74 65 20 | 66 69 6c 65 20 64 65 73 | remote |file des|
|00000a00| 63 72 69 70 74 6f 72 20 | 61 6c 77 61 79 73 20 73 |criptor |always s|
|00000a10| 75 63 63 65 65 64 73 2e | 20 20 42 75 74 0a 09 6d |ucceeds.|  But..m|
|00000a20| 61 79 62 65 20 6e 6f 74 | 2e 20 20 49 20 77 6f 75 |aybe not|.  I wou|
|00000a30| 6c 64 20 61 70 70 72 65 | 63 69 61 74 65 20 69 74 |ld appre|ciate it|
|00000a40| 20 69 66 20 79 6f 75 20 | 77 6f 75 6c 64 20 69 6e | if you |would in|
|00000a50| 76 65 73 74 69 67 61 74 | 65 20 66 75 72 74 68 65 |vestigat|e furthe|
|00000a60| 72 2e 20 20 41 73 0a 09 | 66 6f 72 20 74 68 65 20 |r.  As..|for the |
|00000a70| 69 6f 63 74 6c 2c 20 74 | 68 65 72 65 20 69 73 20 |ioctl, t|here is |
|00000a80| 61 20 72 6d 74 5f 69 6f | 63 74 6c 28 29 20 28 6e |a rmt_io|ctl() (n|
|00000a90| 6f 74 20 72 6d 74 69 6f | 63 74 6c 29 20 69 6e 20 |ot rmtio|ctl) in |
|00000aa0| 72 6d 74 5f 73 79 73 63 | 61 6c 6c 32 2e 63 0a 09 |rmt_sysc|all2.c..|
|00000ab0| 77 68 69 63 68 20 72 65 | 74 75 72 6e 73 20 74 68 |which re|turns th|
|00000ac0| 65 20 65 72 72 6f 72 20 | 62 65 63 61 75 73 65 20 |e error |because |
|00000ad0| 69 74 20 69 73 20 77 68 | 61 74 20 69 73 20 63 61 |it is wh|at is ca|
|00000ae0| 6c 6c 65 64 20 62 79 0a | 09 72 65 6d 6f 74 65 5f |lled by.|.remote_|
|00000af0| 73 74 61 72 74 75 70 28 | 29 2c 20 65 74 63 2e 0a |startup(|), etc..|
|00000b00| 0a 3e 49 74 20 73 65 65 | 6d 73 20 74 6f 20 6d 65 |.>It see|ms to me|
|00000b10| 20 74 68 65 20 69 64 65 | 61 20 6f 66 20 61 20 67 | the ide|a of a g|
|00000b20| 65 6e 65 72 69 63 20 6d | 6f 75 6e 74 20 70 6f 69 |eneric m|ount poi|
|00000b30| 6e 74 20 69 73 6e 27 74 | 0a 3e 77 6f 72 74 68 20 |nt isn't|.>worth |
|00000b40| 74 68 65 20 74 72 6f 75 | 62 6c 65 20 28 65 78 74 |the trou|ble (ext|
|00000b50| 72 61 20 63 6f 64 65 20 | 69 6e 20 74 68 65 20 6b |ra code |in the k|
|00000b60| 65 72 6e 65 6c 20 61 6e | 64 20 73 65 72 76 65 72 |ernel an|d server|
|00000b70| 2c 0a 3e 61 20 6e 65 77 | 20 73 79 73 63 61 6c 6c |,.>a new| syscall|
|00000b80| 2c 20 74 68 65 20 22 70 | 77 64 22 20 70 72 6f 62 |, the "p|wd" prob|
|00000b90| 6c 65 6d 29 2e 20 20 41 | 20 73 63 72 69 70 74 20 |lem).  A| script |
|00000ba0| 74 6f 20 6d 6f 75 6e 74 | 0a 3e 65 61 63 68 20 68 |to mount|.>each h|
|00000bb0| 6f 73 74 2c 20 72 75 6e | 20 61 74 20 62 6f 6f 74 |ost, run| at boot|
|00000bc0| 20 74 69 6d 65 2c 20 64 | 6f 65 73 20 74 68 65 20 | time, d|oes the |
|00000bd0| 6a 6f 62 20 6a 75 73 74 | 20 61 73 20 77 65 6c 6c |job just| as well|
|00000be0| 2e 0a 09 49 6e 20 79 6f | 75 72 20 65 6e 76 69 72 |...In yo|ur envir|
|00000bf0| 6f 6e 6d 65 6e 74 20 28 | 61 20 66 65 77 20 62 69 |onment (|a few bi|
|00000c00| 67 20 6d 61 63 68 69 6e | 65 73 29 2c 20 49 20 61 |g machin|es), I a|
|00000c10| 67 72 65 65 20 63 6f 6d | 70 6c 65 74 65 6c 79 2e |gree com|pletely.|
|00000c20| 20 20 42 75 74 20 49 0a | 09 68 61 76 65 20 74 77 |  But I.|.have tw|
|00000c30| 6f 20 68 6f 77 65 76 65 | 72 27 73 2c 20 68 6f 77 |o howeve|r's, how|
|00000c40| 65 76 65 72 2e 20 20 46 | 69 72 73 74 2c 20 49 20 |ever.  F|irst, I |
|00000c50| 6d 61 64 65 20 76 65 72 | 79 20 73 75 72 65 20 74 |made ver|y sure t|
|00000c60| 68 61 74 20 76 65 72 79 | 20 6c 69 74 74 6c 65 0a |hat very| little.|
|00000c70| 09 63 6f 64 65 20 74 68 | 61 74 20 68 61 73 20 74 |.code th|at has t|
|00000c80| 6f 20 64 6f 20 77 69 74 | 68 20 67 65 6e 65 72 69 |o do wit|h generi|
|00000c90| 63 20 6d 6f 75 6e 74 20 | 69 73 20 69 6e 20 74 68 |c mount |is in th|
|00000ca0| 65 20 77 61 79 20 6f 66 | 20 74 68 65 20 6d 61 69 |e way of| the mai|
|00000cb0| 6e 20 66 6c 6f 77 0a 09 | 6f 66 20 63 6f 64 65 2e |n flow..|of code.|
|00000cc0| 20 20 53 65 63 6f 6e 64 | 2c 20 69 6e 20 61 6e 20 |  Second|, in an |
|00000cd0| 65 6e 76 69 72 6f 6e 6d | 65 6e 74 20 6f 66 20 32 |environm|ent of 2|
|00000ce0| 20 56 41 58 20 61 6e 64 | 20 31 30 30 20 77 6f 72 | VAX and| 100 wor|
|00000cf0| 6b 73 74 61 74 69 6f 6e | 73 2c 20 69 74 0a 09 69 |kstation|s, it..i|
|00000d00| 73 20 69 6e 64 69 73 70 | 65 6e 73 61 62 6c 65 2e |s indisp|ensable.|
|00000d10| 0a 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |.-------|--------|
|00000d20| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000d30| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000d40| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000d50| 2d 2d 2d 0a 0a 44 20 47 | 77 79 6e 20 77 72 69 74 |---..D G|wyn writ|
|00000d60| 65 73 3a 0a 3e 49 20 61 | 70 70 6c 61 75 64 20 74 |es:.>I a|pplaud t|
|00000d70| 68 65 20 63 6f 6e 74 72 | 69 62 75 74 69 6f 6e 20 |he contr|ibution |
|00000d80| 6f 66 20 52 46 53 20 28 | 77 68 69 63 68 20 73 68 |of RFS (|which sh|
|00000d90| 6f 75 6c 64 20 62 65 20 | 67 69 76 65 6e 20 73 6f |ould be |given so|
|00000da0| 6d 65 0a 3e 6f 74 68 65 | 72 20 6e 61 6d 65 20 74 |me.>othe|r name t|
|00000db0| 6f 20 61 76 6f 69 64 20 | 63 6f 6e 66 75 73 69 6f |o avoid |confusio|
|00000dc0| 6e 20 77 69 74 68 20 41 | 54 26 54 27 73 20 22 52 |n with A|T&T's "R|
|00000dd0| 46 53 22 29 2c 20 62 75 | 74 20 49 20 74 61 6b 65 |FS"), bu|t I take|
|00000de0| 0a 3e 69 73 73 75 65 20 | 77 69 74 68 20 74 68 65 |.>issue |with the|
|00000df0| 20 63 6c 61 69 6d 20 74 | 68 61 74 20 6f 6e 65 20 | claim t|hat one |
|00000e00| 64 6f 65 73 20 6e 6f 74 | 20 77 61 6e 74 20 22 66 |does not| want "f|
|00000e10| 69 6e 64 20 2f 20 2d 70 | 72 69 6e 74 22 0a 3e 74 |ind / -p|rint".>t|
|00000e20| 6f 20 63 72 6f 73 73 20 | 6f 76 65 72 20 74 6f 20 |o cross |over to |
|00000e30| 72 65 6d 6f 74 65 20 66 | 69 6c 65 20 73 79 73 74 |remote f|ile syst|
|00000e40| 65 6d 73 20 61 73 20 69 | 74 20 74 72 61 76 65 72 |ems as i|t traver|
|00000e50| 73 65 73 20 74 68 65 0a | 3e 64 69 72 65 63 74 6f |ses the.|>directo|
|00000e60| 72 79 2e 20 20 54 6f 20 | 74 68 65 20 63 6f 6e 74 |ry.  To |the cont|
|00000e70| 72 61 72 79 2c 20 74 68 | 61 74 20 69 73 20 74 68 |rary, th|at is th|
|00000e80| 65 20 77 68 6f 6c 65 20 | 70 6f 69 6e 74 20 6f 66 |e whole |point of|
|00000e90| 20 52 46 53 0a 3e 74 72 | 61 6e 73 70 61 72 65 6e | RFS.>tr|ansparen|
|00000ea0| 63 79 2e 20 20 54 68 65 | 72 65 20 61 72 65 20 73 |cy.  The|re are s|
|00000eb0| 6f 6d 65 20 67 6f 6f 64 | 20 65 78 61 6d 70 6c 65 |ome good| example|
|00000ec0| 73 20 28 73 75 63 68 20 | 61 73 20 67 72 65 70 70 |s (such |as grepp|
|00000ed0| 69 6e 67 0a 3e 66 6f 72 | 20 22 72 6e 6a 22 20 69 |ing.>for| "rnj" i|
|00000ee0| 6e 20 2f 6e 2f 2a 2f 65 | 74 63 2f 70 61 73 73 77 |n /n/*/e|tc/passw|
|00000ef0| 64 29 20 69 6e 20 61 20 | 42 65 6c 6c 20 4c 61 62 |d) in a |Bell Lab|
|00000f00| 73 20 70 61 70 65 72 20 | 70 75 62 6c 69 73 68 65 |s paper |publishe|
|00000f10| 64 0a 3e 6f 6e 65 20 6f | 72 20 74 77 6f 20 55 53 |d.>one o|r two US|
|00000f20| 45 4e 49 58 65 73 20 61 | 67 6f 2e 0a 09 49 20 61 |ENIXes a|go...I a|
|00000f30| 64 6d 69 74 20 74 68 61 | 74 20 60 60 67 72 65 70 |dmit tha|t ``grep|
|00000f40| 20 22 72 6e 6a 22 20 2f | 6e 2f 2a 2f 65 74 63 2f | "rnj" /|n/*/etc/|
|00000f50| 70 61 73 73 77 64 27 27 | 20 69 73 20 64 65 73 69 |passwd''| is desi|
|00000f60| 72 61 62 6c 65 2c 0a 09 | 62 75 74 20 69 6e 20 67 |rable,..|but in g|
|00000f70| 65 6e 65 72 61 6c 2c 20 | 69 74 20 69 73 20 74 68 |eneral, |it is th|
|00000f80| 65 20 65 78 63 65 70 74 | 69 6f 6e 20 74 6f 20 74 |e except|ion to t|
|00000f90| 68 65 20 72 75 6c 65 2e | 20 20 41 6e 64 20 69 6e |he rule.|  And in|
|00000fa0| 20 66 61 63 74 2c 0a 09 | 69 66 20 79 6f 75 20 6d | fact,..|if you m|
|00000fb0| 61 6b 65 20 74 68 61 74 | 20 74 68 65 20 72 75 6c |ake that| the rul|
|00000fc0| 65 2c 20 69 74 20 62 65 | 63 6f 6d 65 73 20 69 6d |e, it be|comes im|
|00000fd0| 70 6f 73 73 69 62 6c 65 | 20 74 6f 20 66 69 6e 64 |possible| to find|
|00000fe0| 20 66 69 6c 65 73 0a 09 | 74 68 61 74 20 61 72 65 | files..|that are|
|00000ff0| 20 6f 6e 6c 79 20 6f 6e | 20 79 6f 75 72 20 6d 61 | only on| your ma|
|00001000| 63 68 69 6e 65 2e 20 20 | 48 6f 77 20 64 6f 65 73 |chine.  |How does|
|00001010| 20 41 54 26 54 27 73 20 | 76 65 72 73 69 6f 6e 20 | AT&T's |version |
|00001020| 64 6f 20 69 74 3f 0a 09 | 49 20 74 68 69 6e 6b 20 |do it?..|I think |
|00001030| 74 68 61 74 20 74 68 65 | 20 2f 6e 20 6e 6f 64 65 |that the| /n node|
|00001040| 20 69 6e 20 74 68 65 20 | 65 78 61 6d 70 6c 65 20 | in the |example |
|00001050| 69 73 20 72 6f 75 67 68 | 6c 79 20 65 71 75 69 76 |is rough|ly equiv|
|00001060| 61 6c 65 6e 74 20 74 6f | 20 74 68 65 0a 09 67 65 |alent to| the..ge|
|00001070| 6e 65 72 69 63 20 6d 6f | 75 6e 74 20 70 6f 69 6e |neric mo|unt poin|
|00001080| 74 20 69 6e 20 52 46 53 | 3b 20 69 66 20 74 68 69 |t in RFS|; if thi|
|00001090| 73 20 77 61 73 20 6d 6f | 72 65 20 63 6f 6d 70 6c |s was mo|re compl|
|000010a0| 65 74 65 6c 79 20 69 6d | 70 6c 65 6d 65 6e 74 65 |etely im|plemente|
|000010b0| 64 2c 20 49 0a 09 77 6f | 75 6c 64 20 74 68 69 6e |d, I..wo|uld thin|
|000010c0| 6b 20 74 68 61 74 20 69 | 74 20 73 68 6f 75 6c 64 |k that i|t should|
|000010d0| 20 62 65 20 61 62 6c 65 | 20 74 6f 20 61 63 63 6f | be able| to acco|
|000010e0| 6d 70 6c 69 73 68 20 61 | 62 6f 75 74 20 74 68 65 |mplish a|bout the|
|000010f0| 20 73 61 6d 65 20 74 68 | 69 6e 67 2e 0a 09 41 73 | same th|ing...As|
|00001100| 20 69 74 20 69 73 2c 20 | 74 68 65 20 62 65 73 74 | it is, |the best|
|00001110| 20 79 6f 75 20 63 61 6e | 20 64 6f 20 69 73 20 77 | you can| do is w|
|00001120| 69 74 68 20 63 73 68 3a | 0a 0a 09 09 67 72 65 70 |ith csh:|....grep|
|00001130| 20 22 72 6e 6a 22 20 2f | 7b 76 61 78 31 2c 76 61 | "rnj" /|{vax1,va|
|00001140| 78 32 2c 76 61 78 33 7d | 2f 65 74 63 2f 70 61 73 |x2,vax3}|/etc/pas|
|00001150| 73 77 64 0a 09 6f 72 20 | 77 69 74 68 20 74 68 65 |swd..or |with the|
|00001160| 20 67 65 6e 65 72 69 63 | 20 6d 6f 75 6e 74 20 70 | generic| mount p|
|00001170| 6f 69 6e 74 2e 0a 09 09 | 67 72 65 70 20 22 72 6e |oint....|grep "rn|
|00001180| 6a 22 20 2f 6e 65 74 2f | 7b 76 61 78 31 2c 76 61 |j" /net/|{vax1,va|
|00001190| 78 32 2c 76 61 78 33 7d | 2f 65 74 63 2f 70 61 73 |x2,vax3}|/etc/pas|
|000011a0| 73 77 64 0a 0a 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |swd..---|--------|
|000011b0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000011c0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000011d0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000011e0| 2d 2d 2d 2d 2d 2d 2d 0a | 09 09 09 54 6f 64 64 20 |-------.|...Todd |
|000011f0| 42 72 75 6e 68 6f 66 66 | 0a 09 09 09 74 6f 64 64 |Brunhoff|....todd|
|00001200| 62 25 63 72 6c 40 74 65 | 6b 74 72 6f 6e 69 78 2e |b%crl@te|ktronix.|
|00001210| 63 73 6e 65 74 0a 09 09 | 09 7b 75 63 62 76 61 78 |csnet...|.{ucbvax|
|00001220| 2c 64 65 63 76 61 78 7d | 21 74 65 6b 74 72 6f 6e |,decvax}|!tektron|
|00001230| 69 78 21 74 6f 64 64 62 | 0a 0a 0a                |ix!toddb|...     |
+--------+-------------------------+-------------------------+--------+--------+