Linux-Development-Sys Digest #152, Volume #8 Sun, 17 Sep 00 16:13:10 EDT
Contents:
Re: new windowing system ("John Smith")
Re: new windowing system (Kaz Kylheku)
Re: new windowing system (Grant Edwards)
Turning swap off ("H�kan")
Asynchcrounous read and write ("Klas Sehlstedt")
current working directory lib function. ("Richard Lim")
Memory hole problem (The Hack)
Re: new windowing system (Aurel Balmosan)
Re: More then one bind to a ip-port possible? (Aurel Balmosan)
Re: ext2 file size limit? (Andreas Jaeger)
Re: ext2 file size limit? (Andreas Jaeger)
Re: ext2 file size limit? (Alexander Viro)
Re: ext2 file size limit? (Andreas Jaeger)
Re: current working directory lib function. ("Arthur H. Gold")
I Need A Shell Script, Or A C Program.... (Michael Lauzon)
I Need A Shell Script, Or A C Program.... (Michael Lauzon)
programming a nss service ("Andreas Moroder")
Re: I Need A Shell Script, Or A C Program.... (Neil Schemenauer)
----------------------------------------------------------------------------
From: "John Smith" <[EMAIL PROTECTED]>
Subject: Re: new windowing system
Date: Sun, 17 Sep 2000 03:23:27 GMT
It's "neck of the woods", idiot.
"Stefaan A Eeckels" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> In article <[EMAIL PROTECTED]>,
> "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> writes:
> >
> BTW, do they still say "robot" for a traffic light
> in your nick of the woods?
------------------------------
From: [EMAIL PROTECTED] (Kaz Kylheku)
Subject: Re: new windowing system
Reply-To: [EMAIL PROTECTED]
Date: Sun, 17 Sep 2000 04:21:08 GMT
On Sun, 17 Sep 2000 03:23:27 GMT, John Smith <[EMAIL PROTECTED]> wrote:
>It's "neck of the woods", idiot.
>
>"Stefaan A Eeckels" <[EMAIL PROTECTED]> wrote in message
>news:[EMAIL PROTECTED]...
>> In article <[EMAIL PROTECTED]>,
>> "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> writes:
>> >
>> BTW, do they still say "robot" for a traffic light
>> in your nick of the woods?
Stefaan Eeckels is obviously not an English name; LU is the country code for
Luxembourg.
I wonder, should we put to the test *your* mastery of linguistic colloquialisms
unique to Luxembourg?
By the way, the proper place for a Usenet reply is *below* the fscking quotes,
not above. If you are going to call someone an idiot in a Linux newsgroup,
it kind of helps *not* to be running MS Outlook as your newreader. :)
* Chuckle *
--
Any hyperlinks appearing in this article were inserted by the unscrupulous
operators of a Usenet-to-web gateway, without obtaining the proper permission
of the author, who does not endorse any of the linked-to products or services.
------------------------------
From: [EMAIL PROTECTED] (Grant Edwards)
Crossposted-To: comp.os.linux.x,comp.windows.x
Subject: Re: new windowing system
Date: Sun, 17 Sep 2000 05:38:30 GMT
In article <8q0rud$pit$[EMAIL PROTECTED]>, Karl Heyes wrote:
>> One point I have to make: Why is everyone thinking that a socket
>> (tcp/ip, unix, ...) connection is slow? Especially when it comes
>> to X the Xlib communication layer knows how to use it efficiently.
>
>sockets add extra wrapping around the data thats coming from the
>applications, things like tcp/ip.
You've really got your X configuration screwed up if it's using TCP/IP for
local connections between client/server. I've been running X11 for 12 years
on lots of different OSes, and none of them ever used TCP/IP when client and
server are on the same machine.
>A more popular thing happening these days is 3d work, which is going though
>DRI which is not network based anyway. Linux is nice and fast on TCP/IP but
>IP has a disadvantage when dealing locally.
That's why X doesn't use IP when dealing locally. Did you really think the
developers of X are that stupid?
For high-bandwidth stuff, even the Unix domain sockets are bypassed and
shared memory is used for transferring data between client and server.
--
Grant Edwards grante Yow! Where do your SOCKS
at go when you lose them in
visi.com th' WASHER?
------------------------------
From: "H�kan" <[EMAIL PROTECTED]>
Subject: Turning swap off
Date: Sun, 17 Sep 2000 14:23:34 +0200
Hi List
What happend if I turning swap offt? Should I see any preformace downloads?
Not so good network preformance? Does anyone know?
Second question:
How do I turn the swap off. Is it enough to remove the swap entry in
/etc/fstab
or do I have to do more??
Probebly you wonder why do that... ... I working with a embedded Linux
system!
TIA
--
/H�kan
My email address is not valid use
h DOT kan AT home DOT se
------------------------------
From: "Klas Sehlstedt" <[EMAIL PROTECTED]>
Subject: Asynchcrounous read and write
Date: Sun, 17 Sep 2000 14:56:43 +0200
Hi
Does linux have support for asynchrounus read and write.
I'm looking for something similar to solaris aread, awrite ?
This can offcourse be done by sending a suitable iocontrol
and let the driver when its finnished sending a signal when the
operation is finnished. This is describewd in
Rubinis deveice driver book
But I think this is to slow for my purposes.
Is there another way ?
Klas Sehlstedt
------------------------------
From: "Richard Lim" <[EMAIL PROTECTED]>
Subject: current working directory lib function.
Date: Sun, 17 Sep 2000 21:05:33 +0800
Hi,
how can i get current working directory using a lib fuction?
please advice.
regards,
richard lim
------------------------------
From: The Hack <[EMAIL PROTECTED]>
Subject: Memory hole problem
Date: Sun, 17 Sep 2000 16:42:17 +0200
SGkhDQoNCkhlcmUncyB0aGUgdGhpbmchDQpJJ3ZlIHJlY2VudGx5IGJvdWdodCBhbiBBdGhs
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IFNCIENMDQpQQ0kgMTI4IHNvdW5kIGNhcmQgZGlkbid0IHdvcmsuIFRoZSByZWFzb24gd2Fz
ICggYXBwYXJlbnRseSApIHRoYXQgdGhlDQpjYXJkIHJlZnVzZXMgdG8gd29yayB1bmxlc3Mg
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b2YgZGVhbGluZyB3aXRoIHRoaXMsIG9yIGEgdmVyeSBkaWZmaWN1bHQgYW5kIGxvZ2ljYWwg
b25lICgNCmxpa2UgZXZlcnl0aGluZyBpbiBwcm9ncmFtaW5nICkuDQoNCkFueSBoZWxwIHdv
dWxkIGJlIHdlbGNvbWUNCkFscmVhZHkgZ3JhdGVmdWwNCg0KICAgICAgICAgICAgICAgICAg
ICAgICAgICAgICAgICAgICAgVC5ILg0K
------------------------------
Crossposted-To: comp.os.linux.x,comp.windows.x
From: Aurel Balmosan <[EMAIL PROTECTED]>
Subject: Re: new windowing system
Date: Sun, 17 Sep 2000 14:53:56 GMT
In comp.os.linux.development.system Karl Heyes <[EMAIL PROTECTED]>
wrote:
> sockets add extra wrapping around the data thats coming from the
> applications, things like tcp/ip. It's not much in itself but every
> piece of information has its own, and each has to processed through
> the networkl stack. They are useful when dealing over a network but
> run locally it adds an overhead, which can add up.
Your right, but what kind of application would suffer from it? I
think only games would.
> A more popular thing happening these days is 3d work, which is going
> though DRI which is not network based anyway. Linux is nice
> and fast on TCP/IP but IP has a disadvantage when dealing locally.
Most of us are using UNIX sockets anyway. Also it is a thing about the
Xlib implementation if it notice that the server is a local one and then
to i.e. DRI anyway. This could have been done years ago. I thing SGI has
this quite a while in their server's and xlib implementations.
> karl
--
================================================================
Aurel Balmosan | [EMAIL PROTECTED], [EMAIL PROTECTED]
http://gaia.owl.de/~aurel/ |
================================================================
------------------------------
From: Aurel Balmosan <[EMAIL PROTECTED]>
Subject: Re: More then one bind to a ip-port possible?
Date: Sun, 17 Sep 2000 15:01:01 GMT
Mario Klebsch <[EMAIL PROTECTED]> wrote:
> Aurel Balmosan <[EMAIL PROTECTED]> writes:
> >I know that this feature is none standard and that it
> >will only work with packet orientated transmissions
> >(like UDP) and only when two packets contain always
> >independend data. Would it be difficult to introduce
> >this feature also into Linux?
> You should already be able to do it in Linux (as on most other UNIXes,
> too). You create the socket in a parent process and inherit it to each
> child.
Yes, this is a way too. The only disadvantage I see is that you can not
start another server processes from the outside. And you have
to do the process handling (starting new processes ...) within your
server.
Maybe I can change my server to do that.
Bye,
Aurel.
> 73, Mario
> --
> Mario Klebsch [EMAIL PROTECTED]
> PGP-Key available at http://www.klebsch.de/public.key
> Fingerprint DSS: EE7C DBCC D9C8 5DC1 D4DB 1483 30CE 9FB2 A047 9CE0
> Diffie-Hellman: D447 4ED6 8A10 2C65 C5E5 8B98 9464 53FF 9382 F518
--
================================================================
Aurel Balmosan | [EMAIL PROTECTED], [EMAIL PROTECTED]
http://gaia.owl.de/~aurel/ |
================================================================
------------------------------
From: Andreas Jaeger <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc
Subject: Re: ext2 file size limit?
Date: 17 Sep 2000 17:33:50 +0200
>>>>> Mikko Rauhala writes:
Mikko> On Sat, 16 Sep 2000 17:53:18 -0700, Paul Reilly <[EMAIL PROTECTED]> wrote:
>> Can someone tell me what the max size for a single file is in linux?
Mikko> On 32-bit platforms it's the 2 gigs you just hit. This limit is removed
Mikko> in the 2.4-series kernels (currently in testing phase), though you of course
Mikko> need a recent enough libc as well, and to compile the app with a 64-bit
Mikko> size_t.
Have a look at my page for details:
http://www.suse.de/~aj/linux_lfs.html
Mikko> Support for 64-bit sizes has also been backported to the 2.2-series, and
Mikko> I believe at least Red Hat's default kernel has the patch included.
SuSE did it, for other distributions I've got no definite information.
Mikko> Also, on 64-bit platforms 64-bit files are of course supported.
Andreas
--
Andreas Jaeger
SuSE Labs [EMAIL PROTECTED]
private [EMAIL PROTECTED]
http://www.suse.de/~aj
------------------------------
From: Andreas Jaeger <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc
Subject: Re: ext2 file size limit?
Date: 17 Sep 2000 17:35:35 +0200
>>>>> Alexander Viro writes:
> In article <[EMAIL PROTECTED]>,
> Christopher Browne <[EMAIL PROTECTED]> wrote:
>> ext2fs has a file size limit of _2TB,_ I'm sorry, but the limit that
>> is being hit is _not_ a filesystem limit, but rather a limitation in
>> the interface between VFS and GLIBC on 32 bit platforms.
> Yaaaaargh... OK, it seems to become a FAQ
> Q: is it true that ext2 has 2Gb limit on file size?
> A: BS
> Q: so how comes that I can't create files larger than that?
> A: because VM in Linux 2.2 and earlier can't cope with files larger than
> 2.2 on 32-bit architectures. Regardless of filesystem.
> Q: will reiserfs help?
> A: what part of "regardless of filesystem" is too hard to understand?
> Q: OK, so what can I do, I'm stuck with 32-bit box?
> A: use 2.4 _or_ 2.2 with LFS patches _or_ FreeBSD. All of them will handle
> more than 2Gb on ext2.
> Q: I've done that, and half of utilities doesn't work
> A: That was a question?
> Q: OK, _why_?
> A: because if libc thinks that offsets are 32 bit it's not going to pass
> anything larger to the kernel
> Q: what should I do?
> A: get sufficiently recent libc. And learn to use search engines, already -
> all that stuff had been beaten to death _many_ times.
Q: Why does it still not work?
A: Compile your applications so that they use the LFS interface.
> Q: why...
> A: excuse me, what was your username, again?
> Q: ... are you so... Hey, what's up with this NIC? It's sparAAAAAASSSHHH<thud>
Andreas
--
Andreas Jaeger
SuSE Labs [EMAIL PROTECTED]
private [EMAIL PROTECTED]
http://www.suse.de/~aj
------------------------------
From: [EMAIL PROTECTED] (Alexander Viro)
Subject: Re: ext2 file size limit?
Date: 17 Sep 2000 11:55:14 -0400
In article <[EMAIL PROTECTED]>,
Andreas Jaeger <[EMAIL PROTECTED]> wrote:
> > A: get sufficiently recent libc. And learn to use search engines, already -
> > all that stuff had been beaten to death _many_ times.
>
>Q: Why does it still not work?
>A: Compile your applications so that they use the LFS interface.
Covered by the previous actually - /usr/include/*.h comes from libc...
--
"You're one of those condescending Unix computer users!"
"Here's a nickel, kid. Get yourself a better computer" - Dilbert.
------------------------------
From: Andreas Jaeger <[EMAIL PROTECTED]>
Subject: Re: ext2 file size limit?
Date: 17 Sep 2000 19:00:08 +0200
>>>>> Alexander Viro writes:
Al> In article <[EMAIL PROTECTED]>,
Al> Andreas Jaeger <[EMAIL PROTECTED]> wrote:
>> > A: get sufficiently recent libc. And learn to use search engines, already -
>> > all that stuff had been beaten to death _many_ times.
>>
>> Q: Why does it still not work?
>> A: Compile your applications so that they use the LFS interface.
Al> Covered by the previous actually - /usr/include/*.h comes from libc...
It might be that I misunderstood your previous Q&As but that
wasn't clear to me.
I know what's in libc. If you just use the normal interface, you'll
only get 32 bits - you have to use explictly the LFS interface (or
compile with -D_FILE_OFFSET_BITS=64).
Andreas
--
Andreas Jaeger
SuSE Labs [EMAIL PROTECTED]
private [EMAIL PROTECTED]
http://www.suse.de/~aj
------------------------------
Date: Sun, 17 Sep 2000 12:55:51 -0500
From: "Arthur H. Gold" <[EMAIL PROTECTED]>
Subject: Re: current working directory lib function.
Richard Lim wrote:
>
> Hi,
> how can i get current working directory using a lib fuction?
> please advice.
>
> regards,
> richard lim
man getcwd
HTH,
--ag
--
Artie Gold, Austin, TX (finger the cs.utexas.edu account
for more info)
mailto:[EMAIL PROTECTED] or mailto:[EMAIL PROTECTED]
--
"I'd sooner fly another combat mission than ride the Cyclone
again" -- Joseph Heller
------------------------------
From: [EMAIL PROTECTED] (Michael Lauzon)
Subject: I Need A Shell Script, Or A C Program....
Date: Sun, 17 Sep 2000 18:10:35 GMT
I need a shell script to run as root, it will search all the users who have MP3s, list
there usernames,
list the MP3s, and delete them if I so desire. So, what I am looking for is as
follows. A
program that searches, lists each user with a number before their username, which then
the program will
let me choose which user by number (or name), list all the MP3s that the user has and
asks me if I want
to delete them all at once, or one by one. This could also be a C program. I need
this by Monday at the
earliest, and a week Monday at the latest.
--
Michael
http://www.geocities.com/SiliconValley/Way/9180/
'Eat, drink, and be merry, for tomorrow you may work.'
------------------------------
From: [EMAIL PROTECTED] (Michael Lauzon)
Subject: I Need A Shell Script, Or A C Program....
Date: Sun, 17 Sep 2000 18:09:59 GMT
I need a shell script to run as root, it will search all the users who have MP3s, list
there usernames,
list the MP3s, and delete them if I so desire. So, what I am looking for is as
follows. A
program that searches, lists each user with a number before their username, which then
the program will
let me choose which user by number (or name), list all the MP3s that the user has and
asks me if I want
to delete them all at once, or one by one. This could also be a C program. I need
this by Monday at the
earliest, and a week Monday at the latest.
--
Michael
http://www.geocities.com/SiliconValley/Way/9180/
'Eat, drink, and be merry, for tomorrow you may work.'
------------------------------
From: "Andreas Moroder" <[EMAIL PROTECTED]>
Subject: programming a nss service
Date: Sun, 17 Sep 2000 20:50:09 +0200
Hello I would like to write a new nsswitch service that gets all the data
from novell nds instead of "files".
I am just making the first steps and have few problems with nss. The first
service I try to add is the group service and I wrote a sample. All works
well, except
getgrent_r.
If i log in the debug code show me that setgrent ist opened, and getgrent_r
is called two times.
I don't understand why it is not called six times.
Remember it is onyl a sample, but it should work.
( don't forget to delete it from nsswitch.conf before you shut down your
machine. )
It would be very nice if anyone can give a look at the sources and tell me
whats wrong in my first test code.
Remember, this is
Thank you
Andreas Moroder
#include <nss.h>
#include <grp.h>
#include <sys/types.h>
char *GRP_NAME[]={"root","bin","daemon","kock","bo","tty"};
static int ent=0;
#define DEBUG(x) debug((x))
void
debug(char *str)
{
write(2,str,strlen(str));
sleep(1);
}
enum nss_status _nss_nds_setgrent(void)
{
DEBUG("SET\n");
ent=0;
return NSS_STATUS_SUCCESS;
}
enum nss_status _nss_nds_endgrent(void)
{
DEBUG("END\n");
return NSS_STATUS_SUCCESS;
}
enum nss_status _nss_nds_getgrent_r(struct group *result_buf, char *buffer,
size_t buflen)
{
char buf[10];
result_buf->gr_mem=NULL;
result_buf->gr_gid=ent;
if(strlen(GRP_NAME[ent])>=buflen) {
DEBUG("AGAIN\n");
return NSS_STATUS_TRYAGAIN;
}
strcpy(buffer,GRP_NAME[ent]);
result_buf->gr_name=buffer;
sprintf(buf,"%d##%s\n",ent,buffer);
ent++;
if(ent>6) {
DEBUG("GET_NOT_FOUND\n");
return NSS_STATUS_NOTFOUND;
}
DEBUG(buf);
return NSS_STATUS_SUCCESS;
}
enum nss_status _nss_nds_getgrgid_r (gid_t gid, struct group *result_buf,
char *buffer, size_t buflen)
{
char buf[20];
result_buf->gr_gid=gid;
result_buf->gr_mem=NULL;
if(gid>=6) {
DEBUG("GET_NOT_FOUND\n");
return NSS_STATUS_NOTFOUND;
}
if(strlen(GRP_NAME[gid])>buflen) {
DEBUG("AGAIN\n");
return NSS_STATUS_TRYAGAIN;
}
strcpy(buffer,GRP_NAME[gid]);
result_buf->gr_name=buffer;
// sprintf(buf,"%d$$\n",gid);
// DEBUG(buf);
return NSS_STATUS_SUCCESS;
}
enum nss_status _nss_nds_getgrnam_r (char *name, struct group *result_buf,
char *buffer, size_t buflen)
{
int i;
write(2,"NAM:",4);
write(2,name,strlen(name));
for(i=0;i<6;i++) {
if(strcasecmp(name,GRP_NAME[i])==0) {
result_buf->gr_gid=i;
result_buf->gr_mem=NULL;
DEBUG("\nOK\n");
return NSS_STATUS_SUCCESS;
}
}
DEBUG("!\n");
return NSS_STATUS_NOTFOUND;
}
------------------------------
From: [EMAIL PROTECTED] (Neil Schemenauer)
Subject: Re: I Need A Shell Script, Or A C Program....
Date: 17 Sep 2000 19:59:17 GMT
Michael Lauzon <[EMAIL PROTECTED]> wrote:
>I need a shell script to run as root, it will search all the
>users who have MP3s, list there usernames, list the MP3s, and
>delete them if I so desire. [...] I need this by Monday at the
>earliest, and a week Monday at the latest.
I'll get right on it.
Neil
------------------------------
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