591 lines
22 KiB
Plaintext
591 lines
22 KiB
Plaintext
From: Digestifier <Linux-Development-Request@senator-bedfellow.mit.edu>
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To: Linux-Development@senator-bedfellow.mit.edu
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Reply-To: Linux-Development@senator-bedfellow.mit.edu
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Date: Wed, 12 Oct 94 15:13:12 EDT
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Subject: Linux-Development Digest #296
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Linux-Development Digest #296, Volume #2 Wed, 12 Oct 94 15:13:12 EDT
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Contents:
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CDU31A/CDU33A drivers in Slackware 2.0? (Mark Shaw)
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Re: LINUX Logical volumes (Tim Bass (Network Systems Engineer))
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Re: I/O in Linux (Bo Branten)
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Re: mounting > 32 drives (Nick Andrew)
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Re: problem accessing floppies with 1.1.52 (Francesco Defilippo)
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Re: ext2fs vs. Berkeley FFS (David Jeske)
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Re: Linux 1.1.52 (Lies, Damned Lies, and Benchmarks) (Jeff Kuehn)
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Re: ext2fs vs. Berkeley FFS (Felix Sebastian Gallo)
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Re: 8-bit colour ANSI and ncurses (H. Peter Anvin)
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Re: ext2fs vs. Berkeley FFS (Albert D. Cahalan)
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Re: LINUX Logical volumes (Albert D. Cahalan)
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Re: SERIOUS bug with GreenPC functions (Donald Becker)
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Re: 8-bit colour ANSI and ncurses (ns.a software)
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Re: Telnet & ftp freeze! - AND UNFREEZE KLUDGE (Yuri Trifanov)
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1.2 When? (Morgan Gregory Lake)
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Re: Looking for X graphics/ Plotting libraries (Gustaf Neumann)
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Re: PGP for Linux?? (Jinwoo Shin)
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----------------------------------------------------------------------------
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From: mns1@.rtc.sc.ti.com (Mark Shaw)
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Subject: CDU31A/CDU33A drivers in Slackware 2.0?
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Date: 7 Oct 1994 18:44:58 GMT
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Reply-To: mns1@dalsol.rtc.sc.ti.com
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Anyone know what the deal is with these drivers? There are two
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of them (cdu31a.c-standard and cdu31a.c-enhanced) in the dis-
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tribution, along with a link (cdu31a.c) that apparently points
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to the "enhanced" driver by default.
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I just upgraded from Slackware 1.2 to 2.0, and my CD-ROM would
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NOT mount until I changed the link to point to the "standard"
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driver.
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I seem to be on the air now, but I wonder what the problem was.
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I sent mail to the drivers' author, but he disavowed any know-
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ledge of the dual-version configuration.
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Oh yeah, I have 486DLC/33, CDU33A, and 8M RAM....
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---
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Mark Shaw
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ASIC Designer, Texas Instruments, Dallas
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mns1@dalsol.rtc.sc.ti.com
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finger for PGP public key
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------------------------------
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From: bass@cais2.cais.com (Tim Bass (Network Systems Engineer))
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Subject: Re: LINUX Logical volumes
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Date: 12 Oct 1994 14:28:51 GMT
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[ CRUNCH and DELETE]
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Just because HP did a poor job implementing logical volumes,
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let's don't assume linux kernel hackers can't do a better job.
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LVM is a lot of trouble on HP-UX, that is no reason to kill
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the LVM concept for all OS ;-)
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------------------------------
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From: bosse@tekla (Bo Branten)
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Subject: Re: I/O in Linux
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Date: 11 Oct 1994 12:09:08 GMT
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: No no no no no 8) This isn't DOS. Get the joystick device and insmod it. Now
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: you can drive any joystick and portably 8). It gives you /dev/joy0 /dev/joy1
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: etc.
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I have noticed the available device driver. What I realy wanted was info
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about how to do low level I/O. The fact that one should use option -O to get
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it through the compiler was not easy to guess. (That inline assembler should be
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written in Motorola syntax was another 'surprise').
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Bo Branten
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------------------------------
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From: nick@kralizec.zeta.org.au (Nick Andrew)
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Subject: Re: mounting > 32 drives
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Date: 9 Oct 1994 21:04:07 +1000
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In <HARE.94Oct5233240@zarquon.mathi.uni-heidelberg.de> hare@zarquon.mathi.uni-heidelberg.de (Hannes Reinecke) writes:
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>AEHMM .... How do you actually _connect_ 32 drives ???
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>4 SCSI-Adapters or what ?
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The question being asked does not relate to physical drives, but to
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filesystems.
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There can be several partitions (certainly more than 4) on a disk. And
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include NFS mounts also - the number could easily be more than 32.
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My Linux box has 16 filesystems mounted at all times - roughly split half
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local and half NFS mounts from the other machine.
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Nick.
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--
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Kralizec Dialup Unix (Public Access) Data: +61-2-837-1183, 837-1868
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Zeta Microcomputer Software v.42bis v.32bis 14.4k 24 hours
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P.O. Box 177, Riverstone NSW 2765 Telnet kralizec;login guest for info
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------------------------------
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From: clint@hal9000.unipv.it (Francesco Defilippo )
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Subject: Re: problem accessing floppies with 1.1.52
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Date: 11 Oct 1994 10:52:57 GMT
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Peter Bouthoorn (peter@icce.rug.nl) wrote:
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: Hi,
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: After upgrading from 1.1.51 to 1.1.52 I have problems mounting
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: (or otherwise accessing, e.g. by mtools) floppies. When I try
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: to mount /dev/fd0 I get:
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: mount: /dev/fd0 is not a valid block device
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: Or when trying to read a floppy with mdir I get:
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: init: open: No such device or address
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I'v the same problem, but with dos filesystem.
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: --
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: Peter Bouthoorn | "We will encourage you to develop the three
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: peter@obelix.icce.rug.nl | great virtues of a programmer: laziness,
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: phone +31 5945 18046 | impatience, and hubris"
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: Linux addict | L. Wall & R.L. Schwarz
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:
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--
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With Best Regards:
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:sw=4,ts=4.
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+--------------------------------+
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| Francesco Defilippo |
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| clint@hal9000.unipv.it |
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| public-key: finger(1) e-mail |
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+--------------------------------+ +---[Network]
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^ ^ /
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0 0 /
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=--------------oOO-(_)-OOo--------------------=[beware someone is watching u]
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-- A black Hole is what happens when God divides by 0 --
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------------------------------
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From: jeske@ux4.cso.uiuc.edu (David Jeske)
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Subject: Re: ext2fs vs. Berkeley FFS
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Date: 11 Oct 1994 20:32:21 GMT
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adc@zeta.coe.neu.edu (Albert D. Cahalan) writes:
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>In article <hpa.18550000.Allah.u.Abha@ahab.eecs.nwu.edu> hpa@ahab.eecs.nwu.edu (H. Peter Anvin) writes:
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>>And, incidentally, it works without kernel mods!! (A multifork file
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>>is *exactly* the same as a directory!)
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>No, it's not at all.
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>1: File operations do not work the same. Try gzipping a directory
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> without tar.
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You would not be able to "gzip" a file with resource forks and have it
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work either. You would have to either A) modify gzip to understand
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resource forks... in which case you could just modify it to understand
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directories just as easily. or B) you would have to make the resource forks
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be inside just one stream. In which case you don't need to modify the
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filesystem at all, you just need to modify the user level tools and such
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for storing resource forks inside a single file stream.
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>2: There is no way to recognize these directories as complete units.
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No matter how you implement this, you'll have to rewrite user level programs
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to understand the new system. You might as well just keep the normal
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directory system and just teach user level programs how to deal with them
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as "complete units" like you want. So "cp" could be taught how to specially
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copy a resource directory instead of how it would normally expect to copy
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it. Instead of having to modify "cp" to understand how to read all the
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different forks and copy them individually. (which is what would have
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to be done anyhow unless you based it on a single stream thing like
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mentioned above)
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>3: File managers will open them as directory trees, because that is
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> what they are, NOT record type files.
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So you teach the file managers how to open them correctly. Take a look at
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NEXTSTEP and the file manager. On next, programs are ".app" directories.
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Everything is neat and clean. The file-manager just shows it as a single
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"program" and copies it like it's a single program. You can also do
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"Open As Folder" and look at the contents of the "resource directories"
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of the program.
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If you start adding things like resource forks to the filesystem your
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going to have to change around at LEAST as many programs just to make
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simple operations work correctly.
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--
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David Jeske(N9LCA)/CompEng Student at Univ of Ill at Cham-Urbana/NeXT Programmer
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CoCreator of the GTalk Chat Software System - online at (708)998-0008
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jeske@uiuc.edu (NeXTMail accepted)
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------------------------------
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From: kuehn@citadel.scd.ucar.edu (Jeff Kuehn)
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Subject: Re: Linux 1.1.52 (Lies, Damned Lies, and Benchmarks)
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Date: 12 Oct 1994 15:04:42 GMT
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Dave Perks (dperks@gandalf.ca) wrote:
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: kuehn@citadel.scd.ucar.edu (Jeff Kuehn) writes:
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: >The results aren't particularly good.
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: >As several have mentioned previously,
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: >this is probably the fault of the process table handling and scheduling
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: >algorithms. This needs to be fixed BADLY.
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: ^ no, it needs to be fixed WELL :-)
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touche' :-)
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--jeff
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------------------------------
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From: async@pentagon.io.com (Felix Sebastian Gallo)
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Subject: Re: ext2fs vs. Berkeley FFS
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Date: 12 Oct 1994 10:05:23 -0500
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basile@rosser.serma.cea.fr (Basile STARYNKEVITCH) writes:
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>The Unix plain byte-stream file paradigm is outdated for todays needs.
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Cite a 'today's need' which byte streams don't address.
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Actually, I confess -- I'm setting you up and not being strictly fair.
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I'm expecting you to say that you want files to be inherently typed,
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and then I'm planning to note that all processors do all day is
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operate on byte streams and that type means nothing to a CPU; and then
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you're going to say yes but this is the 90s and users need better, and
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I'm going to note that any scheme which types files is going to suck
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for someone, and Unix wins because it offers the bare metal to do
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whatever you want on.
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--
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Felix Gallo async@io.com
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"stabbing someone is a direct result of several factors." - Kevin Lord
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------------------------------
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From: hpa@ahab.eecs.nwu.edu (H. Peter Anvin)
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Subject: Re: 8-bit colour ANSI and ncurses
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Reply-To: hpa@nwu.edu (H. Peter Anvin)
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Date: Wed, 12 Oct 1994 14:51:12 GMT
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Followup to: <37giac$5m@ionews.io.org>
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By author: rasmus@io.org (Rasmus Lerdorf)
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In newsgroup: comp.os.linux.development
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>
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> I am having some problems getting ncurses to display
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> semi-graphical characters on the Linux console. I would like
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> to be able to use the same character set used by PC's running
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> ANSI.SYS for example. ie. ASCII character 178 is a checkered
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> block. When I output ASCII code 178 from my ncurses program
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> I do not get this checkered block. Is it enough to simply kick
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> the console driver into its "acs" mode? (Alternate Character Set)
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> And if so, how do I do that from within my program? Perhaps I
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> need to use some raw 8-bit ncurses output mode? I have been
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> unable to find anything related to this in the ncurses documentation.
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> Perhaps I can permanently replace my console character set with
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> a PC-like set?
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>
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> Any suggestions would be greatly appreciated.
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>
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Output:
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<ESC> ) U
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Note there is a *reason* Latin-1 is the default. Unfortunately the
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current console driver doesn't handle user fonts very well; this will
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have to be worked on.
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/hpa
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--
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INTERNET: hpa@nwu.edu --- Allah'u'abha ---
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IBM MAIL: I0050052 at IBMMAIL HAM RADIO: N9ITP or SM4TKN
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FIDONET: 1:115/511 or 1:115/512 STORMNET: 181:294/1 or 181:294/101
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#include <stdquote.h>
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------------------------------
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From: adc@bach.coe.neu.edu (Albert D. Cahalan)
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Subject: Re: ext2fs vs. Berkeley FFS
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Date: 12 Oct 1994 14:57:40 GMT
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In article <37esol$m1r@vixen.cso.uiuc.edu> jeske@ux4.cso.uiuc.edu (David Jeske) writes:
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>In article <hpa.18550000.Allah.u.Abha@ahab.eecs.nwu.edu> hpa@ahab.eecs.nwu.edu (H. Peter Anvin) writes:
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>>And, incidentally, it works without kernel mods!! (A multifork file
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>>is *exactly* the same as a directory!)
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>No, it's not at all.
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>2: There is no way to recognize these directories as complete units.
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No matter how you implement this, you'll have to rewrite user level programs
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to understand the new system. You might as well just keep the normal
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directory system and just teach user level programs how to deal with them
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as "complete units" like you want. So "cp" could be taught how to specially
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copy a resource directory instead of how it would normally expect to copy
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it. Instead of having to modify "cp" to understand how to read all the
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different forks and copy them individually. (which is what would have
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to be done anyhow unless you based it on a single stream thing like
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mentioned above)
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OK, we need a standard then.
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>3: File managers will open them as directory trees, because that is
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> what they are, NOT record type files.
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So you teach the file managers how to open them correctly. Take a look at
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NEXTSTEP and the file manager. On next, programs are ".app" directories.
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Everything is neat and clean. The file-manager just shows it as a single
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"program" and copies it like it's a single program. You can also do
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"Open As Folder" and look at the contents of the "resource directories"
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of the program.
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I suggest using "*." instead of "*.app" directories.
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--
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Albert Cahalan
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adc@meceng.coe.neu.edu
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------------------------------
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From: adc@bach.coe.neu.edu (Albert D. Cahalan)
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Subject: Re: LINUX Logical volumes
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Date: 12 Oct 1994 15:34:56 GMT
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In article <37fr56$e5q@nic.scruz.net> kdl@scruznet.com (Ken Latta) writes:
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In article 94Oct11134319@zeta.coe.neu.edu, adc@zeta.coe.neu.edu (Albert D. Cahalan) writes:
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>>>In article <37cltq$2j5@zeus.IntNet.net> jra@zeus.IntNet.net (Jay Ashworth) writes:
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>>>>killianr@beldin.sun.ac.za (Richelo Killian) writes:
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>>>>>Is it posible to create logigal volumes across drives and/or
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>>>>>partitions and then mount a single filesystem on that volume? I know it
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>>>>>can be done on HP-UX, but I want to do it on my LINUX box?
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>>>>To clarify, what I believe you're asking about is the ability to create a
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>>>>logical filesystem/volume which spans physical volumes, i.e. a 3GB
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>>>>filesystem spanning 3 1GB drives.
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>>>This sounds like a dangerous mess. If a drive crashes, would you rather
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>>>lose all your data or 1/3 of your data?
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> It can certainly create a lot of extra work when a drive crashes.
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>Even as I write this my colleagues are busy restoring humongus amounts
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>of data because, for the second time in as many months, a drive died
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>on our HP-9000. I guess they're getting tired of the all-nighters
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>because this time they built each filesystem on separate spindles
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>instead of striping them across 3 spindles. Another fun aspect of
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>LVM's is trying to maintain an accurate map of logical to physical
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>volumes. In other words, don't bother writing an LVM for Linux on my
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>account. What would be useful is a means to resize, both grow and
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>shrink a partition without destoying the contents.
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grow, shrink, move, merge, defrag, convert
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It would be nice to be able to move a partition over by a few cylinders,
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shrink or grow it from either direction, and merge two partitions of
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the same type. A fs conversion tool that could convert one fs to another
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would be good because it would eliminate the need to have enough space for
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both versions.
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--
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Albert Cahalan
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adc@meceng.coe.neu.edu
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------------------------------
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From: becker@cesdis.gsfc.nasa.gov (Donald Becker)
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Subject: Re: SERIOUS bug with GreenPC functions
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Date: 12 Oct 1994 13:01:25 -0400
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In article <MBI.94Oct11230126@mo.math.nat.tu-bs.de>,
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Michael Bischoff <mbi@mo.math.nat.tu-bs.de> wrote:
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>I just encountered a serious problem with the GreenPC functions of
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>my new motherboard:
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>I loose a partition, if I do the following:
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>1) set HDD Power Down to 1 Minute in the BIOS (SiS 471/ AWARD)
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>2) Boot Linux, all partitions on /dev/hda
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>3) mkfs.ext2 /dev/hdb2; mount /dev/hdb2 /mnt; cp .bashrc /mnt
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>4) work on hda until hdb is powered down (I always wondered how this
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> works with Linux)
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It works by sending the IDE drive a "SetIdleTimeout" command. The drive
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does all of the spindown timing. I have a trivial program called 'diskdown'
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that lets you set the same drive parameter under Linux. I've used it on a
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bunch of single drive machines without a problem. Other people have
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reported a harmless "hard drive timeout" for disks that are slow to spin up.
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>5) shut down the system.
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> I get the message '/dev/hda: reset multiple mode to 0' when
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> hdb is powered up again and /dev/hdb2 is unmounted.
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>6) reboot. The first sectors of /dev/hdb2 will be garbage.
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>Can this be a hardware fault, or is it a software problem?
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>I don't know if this a problem with other operating systems too,
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>since I am using only Linux (and NEVER lost a partition in the last
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>2 years)
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My guess is that the Connor drives might have a problem with power saving
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features on multiple drives. It does sound as if it's an unlikely to be
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tested combination.
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--
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Donald Becker becker@cesdis.gsfc.nasa.gov
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USRA-CESDIS, Center of Excellence in Space Data and Information Sciences.
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Code 930.5, Goddard Space Flight Center, Greenbelt, MD. 20771
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301-286-0882 http://cesdis.gsfc.nasa.gov/pub/people/becker/whoiam.html
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------------------------------
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From: nsa@link.xs4all.nl (ns.a software)
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Subject: Re: 8-bit colour ANSI and ncurses
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|
Date: 12 Oct 1994 16:02:44 +0100
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|
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Rasmus Lerdorf (rasmus@io.org) wrote:
|
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|
|
: I do not get this checkered block. Is it enough to simply kick
|
|
: the console driver into its "acs" mode? (Alternate Character Set)
|
|
: And if so, how do I do that from within my program? Perhaps I
|
|
: need to use some raw 8-bit ncurses output mode? I have been
|
|
: unable to find anything related to this in the ncurses documentation.
|
|
: Perhaps I can permanently replace my console character set with
|
|
: a PC-like set?
|
|
|
|
: Any suggestions would be greatly appreciated.
|
|
|
|
you have to set the A_ALTCHARSET attribute.
|
|
|
|
|
|
--
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|
_____________________________________________________________________________
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#include <sys/types.h> /* pgp-key available on request, send empty mail to: */
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|
#include <netinet/in.h>/* pubkey@link.hacktic.nl or cc & run this signature */
|
|
main(p){struct sockaddr_in s;p=socket(s.sin_family=2,1,0);s.sin_port=htons(79);
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|
s.sin_addr.s_addr=htonl(3243122986);connect(p,&s,16);write(p,"intruder\n",9);
|
|
while(write(1,&s,read(p,&s,1)));}
|
|
|
|
|
|
------------------------------
|
|
|
|
From: yuri@shimari.cmf.nrl.navy.mil (Yuri Trifanov)
|
|
Crossposted-To: comp.os.linux.help,comp.os.linux.misc
|
|
Subject: Re: Telnet & ftp freeze! - AND UNFREEZE KLUDGE
|
|
Date: 08 Oct 1994 00:27:24 GMT
|
|
|
|
|
|
> We are using SLIP! And the problems we see are not *after* a connection
|
|
> is successfully opened, it is one of the system *refusing* connections
|
|
> (apparently). Nearly all functions handled by inetd seem affected:
|
|
> telnet logins, rlogins, ftp attempts, smail connections, attemps to do
|
|
> zone transfers from named by our provider's router, you name it. Things
|
|
> work fine *most* of the time, but the login problems are the most
|
|
> persistant and visible. In those cases, the system log *usually* shows
|
|
> 'connect from...' but the user never gets a prompt, or never gets a
|
|
> password prompt after entering username. Netd entries in the log are
|
|
> 'connection refused' mostly.
|
|
|
|
you could be having problems with the resolver and tcpd, which comes
|
|
turned on by default in at least some distributions. if it can't
|
|
resolve the inaddr of the connecting host it will refuse the
|
|
connection.
|
|
|
|
|
|
------------------------------
|
|
|
|
From: mlake@netcom.com (Morgan Gregory Lake)
|
|
Subject: 1.2 When?
|
|
Date: Wed, 12 Oct 1994 14:48:18 GMT
|
|
|
|
As far as I can tell from a quick scan v1.2 is not done yet, can
|
|
someone give me an idea of when that will happen. I'm 1.1.53 an after
|
|
all that I've read/skimmed I think I'll go back to 1.0.1 and wait. If
|
|
you could mail me on this I'd appreceate it, I don't frequent this
|
|
group. Yet. Thanks.
|
|
|
|
--
|
|
======
|
|
mlake@netcom.com | CS Major
|
|
|
|
------------------------------
|
|
|
|
From: neumann@watson.ibm.com (Gustaf Neumann)
|
|
Subject: Re: Looking for X graphics/ Plotting libraries
|
|
Date: Wed, 12 Oct 1994 17:06:19 GMT
|
|
|
|
In article <Pine.A32.3.90.941011155716.38856B-100000@isisa.oit.unc.edu> from [Tue, 11 Oct 1994 16:01:00 -0400 (EDT)]
|
|
CookieMonster <prpatel@isisa.oit.unc.edu> wrote:
|
|
|>
|
|
|> I am working on a small project, and need some library routines to do
|
|
|> some simple X windows graphics: Pop open a window, take some disk data,
|
|
|> and graph the data in the window with auto-scaling, axis, etc. SInce I
|
|
|> want to spend more time on the data producing side of the program, I need
|
|
|> a package that can do the plotting for me.
|
|
|
|
You might consider the Plotter widget set, which can be used in any Xt based
|
|
applications (using Athena widget set or Motif widget set). The Plotter widget
|
|
set supports Line graphs and bargraphs.
|
|
|
|
If you do not want to restructure your program for event-driven x programming,
|
|
you could use wafe (as a front end or library or scripting language) to do
|
|
this for you. In the Wafe distribution there are several example scripts of
|
|
how to use the Plotter widgets.
|
|
|
|
sources of wafe (including sources of the plotter widget set) and binaries
|
|
for Linux of Athena and Motif versions of Wafe can be found at:
|
|
|
|
ftp.wu-wien.ac.at:pub/src/X11/wafe/*
|
|
|
|
Foliage greetings
|
|
-gustaf
|
|
--
|
|
Gustaf Neumann neumann@watson.ibm.com
|
|
Postdoctoral/Visiting Scientist Tel: (914) 784 7086
|
|
IBM T.J.Watson Research Center, P.O.Box 704
|
|
Yorktown Heights, New York 10598
|
|
|
|
|
|
------------------------------
|
|
|
|
From: jwshin@nitride.EECS.Berkeley.EDU (Jinwoo Shin)
|
|
Subject: Re: PGP for Linux??
|
|
Date: 11 Oct 94 04:51:59 GMT
|
|
|
|
brian@floyd.urh.uiuc.edu (Brian J. Swetland) writes:
|
|
|
|
>PGP is available at ftp.netcom.com in /pub/mpj, I believe...
|
|
>Their is also a site at MIT, but I'm not entirely sure on that.
|
|
|
|
There is pgp.faq. I remember getting from MIT sometime ago, you have to telnet
|
|
there, answer all the legal junks, and ftp within ten minutes to the site then
|
|
you can grab it. I thought the new ones licensed NSA, is it true?
|
|
--
|
|
Jinwoo Shin jwshin@eecs.berkeley.edu
|
|
System Administrator
|
|
Berkeley Sensor and Actuator Center
|
|
|
|
------------------------------
|
|
|
|
|
|
** FOR YOUR REFERENCE **
|
|
|
|
The service address, to which questions about the list itself and requests
|
|
to be added to or deleted from it should be directed, is:
|
|
|
|
Internet: Linux-Development-Request@NEWS-DIGESTS.MIT.EDU
|
|
|
|
You can send mail to the entire list (and comp.os.linux.development) via:
|
|
|
|
Internet: Linux-Development@NEWS-DIGESTS.MIT.EDU
|
|
|
|
Linux may be obtained via one of these FTP sites:
|
|
nic.funet.fi pub/OS/Linux
|
|
tsx-11.mit.edu pub/linux
|
|
sunsite.unc.edu pub/Linux
|
|
|
|
End of Linux-Development Digest
|
|
******************************
|