zeeff@b-tech.UUCP (Jon Zeeff) (04/06/88)
Subject: bsd version of arc Newsgroups: comp.sources.d After running lint on this thing, I find it amazing that it works for anyone. Does anyone have diffs for a lint free version or a version with the bugs removed? (yes, some nasty ones did turn up) --Jon Moral of the story: "lint *.c" isn't hard to do. Always use it on any code you work on. -- Jon Zeeff Branch Technology, uunet!umix!b-tech!zeeff zeeff%b-tech.uucp@umix.cc.umich.edu
eichin@athena.mit.edu (Mark W. Eichin) (04/06/88)
In article <4395@b-tech.UUCP> zeeff@b-tech.UUCP (Jon Zeeff) writes: >Subject: bsd version of arc >Newsgroups: comp.sources.d > >After running lint on this thing, I find it amazing that it works for >anyone. Does anyone have diffs for a lint free version or a version >with the bugs removed? (yes, some nasty ones did turn up) > >--Jon > >Moral of the story: "lint *.c" isn't hard to do. Always use it on >any code you work on. >-- >Jon Zeeff Branch Technology, >uunet!umix!b-tech!zeeff zeeff%b-tech.uucp@umix.cc.umich.edu I built it here (vax 4.3bsd) and tried un-arc'ing something I had been sent, and had it barf with "Stack Overflow" and other errors. It would also produce total garbage for some of the files. On following up another announcement, and finally being able to get through to IUVAX.CS.INDIANA.EDU, I ftp'd their version. It is definitely newer, although most of the work is adding a `squash' module. The diffs that DIDN'T deal with squash mode follow: diff -r ARC/arclzw.c IUarc/arclzw.c 109c109 < #if MSODS --- > #if MSDOS 565c565,566 < local = (pred + foll) | 0x0800; /* create the hash key */ --- > local = ((pred + foll) | 0x0800) & 0xffff; /* create the hash key */ > /*local = (pred + foll) | 0x0800; /* create the hash key */ 574c575,576 < return ((pred+foll)*15073)&0xFFF; /* faster hash */ --- > return (((pred+foll)&0xffff)*15073)&0xFFF; /* faster hash */ > /*return ((pred+foll)*15073)&0xFFF; /* faster hash */ diff -r ARC/arcm.h IUarc/arcm.h 25c25 < #define ARCVER 8 /* archive header version code */ --- > #define ARCVER 9 /* archive header version code */ This version still hangs in certain parts of the archive I was attacking, but now only gets stuck on one file. Someone who wants to seriously hunt this down can ask me, but effort would be better spent in finding a more recent version of ARC to post! I don't know who at indiana it was, but the scrap of posting I still have follows: > Someone ported the actual PC Arc program to Unix and posted it last year. >We have a copy of the source here. You can ftp it from pub/arc/* at >iuvax.cs.indiana.edu. Mark Eichin <eichin@athena.mit.edu> SIPB Member & Project Athena ``Watchmaker''
creps@silver.bacs.indiana.edu (Steve Creps) (04/06/88)
In article <4385@bloom-beacon.MIT.EDU> eichin@athena.mit.edu (Mark W. Eichin) writes: >In article <4395@b-tech.UUCP> zeeff@b-tech.UUCP (Jon Zeeff) writes: [ deleted ] >On following up another announcement, and finally being able to get >through to IUVAX.CS.INDIANA.EDU, I ftp'd their version. It is >definitely newer, although most of the work is adding a `squash' >module. The diffs that DIDN'T deal with squash mode follow: > [ deleted ] >I don't know who at indiana it was, but the scrap of posting I still >have follows: > >> Someone ported the actual PC Arc program to Unix and posted it last year. >>We have a copy of the source here. You can ftp it from pub/arc/* at >>iuvax.cs.indiana.edu. I wrote that. I guess I should add that the version we have is just as it was taken from the net and unshared. No changes were made at this site. I don't remember who posted it to the net, but it's possible the original shar files are somewhere at an archive site. Probably would be a good idea to find who posted it to the net in the first place. - - - - - - - - - - Steve Creps on an Ultrix machine at Indiana University. creps@silver.bacs.indiana.edu (192.12.206.2) {pur-ee ihnp4 rutgers pyramid}!iuvax!silver!creps creps@iubacs.bitnet (forwarded)
ip@mill.me.uucp (Bevis Ip) (04/07/88)
In article <4395@b-tech.UUCP> zeeff@b-tech.UUCP (Jon Zeeff) writes: >Subject: bsd version of arc >Newsgroups: comp.sources.d > >After running lint on this thing, I find it amazing that it works for >anyone. Does anyone have diffs for a lint free version or a version >with the bugs removed? (yes, some nasty ones did turn up) You'e right, the code is quite dirty. I have BSD version of arc running on DEC (BSD4.3), SUN (SUN3.4) and MIPS (UMIPS-BSD) machines; they all works fine for extracting files, but only the one running on DEC works for creating/updating archives. (BTW, I tried all posted versions, from the first working BSD version to the latest squashing patch.) If any one has a fully working version running on either SUN or MIPS, I will appreciate it if one could send me a copy. >Moral of the story: "lint *.c" isn't hard to do. Always use it on >any code you work on. I think the morale for people in this case is to get it to work first, and then worry about lint's complains about other people's code. It is sometimes easier and more enjoyable to rewrite stuff from scratch than to do 2nd or 3rd hand hacking, like here. /bevis -- Bevis Ip Univ. of Toronto, Dept. of Mechanical Engineering UUCP : {ihnp4,allegra,decwrl,decvax}!utcsri!me!ip {pyramid,uunet}!utai!me!ip ARPA : ip%me.toronto.edu@csnet-relay.arpa BitNet: ip@me.UTORONTO CSNet : ip@me.toronto.edu
gnu@hoptoad.uucp (John Gilmore) (04/08/88)
I have a version of "arc" with numerous bugs removed. It seems to
create, extract, list, and test files in all archives I have run across
(except damaged archives, which it complains about now rather than core
dumping on). Arc files it has created have been moved to msdos without
trouble, and vice verse. It's still really slow and stupid, but I
didn't fix design problems, just bugs.
Many months ago, I sent my version to somebody at umix who claimed to
be willing to maintain a master "Unix ARC" source. I no longer have a
record of who that was, and they don't seem to have distributed it or
answered any of these net queries.
I am *not* willing to send out copies to everybody who asks. I am *not*
willing to act as a clearing house for arc bugfixes. I *am* willing to send
my version to a person who *is* willing to do the above two things.
In other words, I don't mind sharing my bug fixes, I just have no
interest being stuck maintaining the damn thing, or having to handle a
lot of email about it. How about a serious volunteer responding by
posting in comp.sources.d? (Then everybody can email their versions to
this person, who had better be willing to merge a lot of bugfixes from
a lot of wierd versions of arc.)
--
{pyramid,pacbell,amdahl,sun,ihnp4}!hoptoad!gnu gnu@toad.com
I forsee a day when there are two kinds of C compilers: standard ones and
useful ones ... just like Pascal and Fortran. Are we making progress yet?
-- ASC:GUTHERY%slb-test.csnet