On 01/20/2015 01:39 PM, Howard Chu wrote:
> Peter Hurley wrote:
>> On 01/19/2015 02:43 PM, Howard Chu wrote:
[...]
>> So it's really back to the question of, does allowing EXTPROC for regular
>> ttys have _value_?
>
> Does preventing it have value?
Not that that is the appropriate metric for
Howard Chu wrote:
Peter Hurley wrote:
On 01/19/2015 02:43 PM, Howard Chu wrote:
The fact that EXTPROC can be manually unset is by design. Quoting
from the original again:
stty.diff:
This file contains the changes needed for the stty(1) program
to report on the current status of the
Peter Hurley wrote:
On 01/19/2015 02:43 PM, Howard Chu wrote:
The fact that EXTPROC can be manually unset is by design. Quoting from the
original again:
stty.diff:
This file contains the changes needed for the stty(1) program
to report on the current status of the TS_EXTPROC bit.
On 01/19/2015 02:43 PM, Howard Chu wrote:
> Peter Hurley wrote:
>> On 01/19/2015 11:36 AM, Howard Chu wrote:
>>> Peter Hurley wrote:
[...]
Which brings up another point: only a pty master should be able to set
EXTPROC
mode. Right now, any tty can be set to EXTPROC and the pty
On 01/19/2015 02:43 PM, Howard Chu wrote:
> Peter Hurley wrote:
>> On 01/19/2015 11:36 AM, Howard Chu wrote:
>>> Peter Hurley wrote:
On 01/19/2015 07:46 AM, Howard Chu wrote:
> Peter Hurley wrote:
[...]
Which brings up another point: only a pty master should be able to set
On 01/20/2015 09:53 AM, Peter Hurley wrote:
> On 01/19/2015 03:31 PM, Howard Chu wrote:
>> Peter Hurley wrote:
>>> Ok.
>>> I might see if I can get telnet + a revised kernel interface to work
>>> together; I'll
>>> let you know if this works out.
>>
>> The patch here
On 01/19/2015 03:31 PM, Howard Chu wrote:
> Peter Hurley wrote:
>> Ok.
>> I might see if I can get telnet + a revised kernel interface to work
>> together; I'll
>> let you know if this works out.
>
> The patch here https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=585527#20
> still applies
On 01/19/2015 03:31 PM, Howard Chu wrote:
Peter Hurley wrote:
Ok.
I might see if I can get telnet + a revised kernel interface to work
together; I'll
let you know if this works out.
The patch here https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=585527#20
still applies cleanly to
On 01/20/2015 09:53 AM, Peter Hurley wrote:
On 01/19/2015 03:31 PM, Howard Chu wrote:
Peter Hurley wrote:
Ok.
I might see if I can get telnet + a revised kernel interface to work
together; I'll
let you know if this works out.
The patch here
Peter Hurley wrote:
On 01/19/2015 02:43 PM, Howard Chu wrote:
The fact that EXTPROC can be manually unset is by design. Quoting from the
original again:
stty.diff:
This file contains the changes needed for the stty(1) program
to report on the current status of the TS_EXTPROC bit.
Howard Chu wrote:
Peter Hurley wrote:
On 01/19/2015 02:43 PM, Howard Chu wrote:
The fact that EXTPROC can be manually unset is by design. Quoting
from the original again:
stty.diff:
This file contains the changes needed for the stty(1) program
to report on the current status of the
On 01/19/2015 02:43 PM, Howard Chu wrote:
Peter Hurley wrote:
On 01/19/2015 11:36 AM, Howard Chu wrote:
Peter Hurley wrote:
[...]
Which brings up another point: only a pty master should be able to set
EXTPROC
mode. Right now, any tty can be set to EXTPROC and the pty slave can even
On 01/19/2015 02:43 PM, Howard Chu wrote:
Peter Hurley wrote:
On 01/19/2015 11:36 AM, Howard Chu wrote:
Peter Hurley wrote:
On 01/19/2015 07:46 AM, Howard Chu wrote:
Peter Hurley wrote:
[...]
Which brings up another point: only a pty master should be able to set
EXTPROC
mode. Right now,
On 01/20/2015 01:39 PM, Howard Chu wrote:
Peter Hurley wrote:
On 01/19/2015 02:43 PM, Howard Chu wrote:
[...]
So it's really back to the question of, does allowing EXTPROC for regular
ttys have _value_?
Does preventing it have value?
Not that that is the appropriate metric for kernel
Peter Hurley wrote:
Ok.
I might see if I can get telnet + a revised kernel interface to work together;
I'll
let you know if this works out.
The patch here
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=585527#20 still
applies cleanly to current Ubuntu netkit-telnet source and works.
Peter Hurley wrote:
On 01/19/2015 11:36 AM, Howard Chu wrote:
Peter Hurley wrote:
Thanks, Howard.
[ adding Ted too ]
On 01/19/2015 07:46 AM, Howard Chu wrote:
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 ("tty: Add EXTPROC support
On 01/19/2015 11:36 AM, Howard Chu wrote:
> Peter Hurley wrote:
[...]
>> A description of how the pty master uses EXTPROC to implement line mode would
>> be very helpful, especially to people working in the tty code (eg., me,
>> although
>> I don't need it now).
>
> The original patch
On 01/19/2015 11:36 AM, Howard Chu wrote:
> Peter Hurley wrote:
>> Thanks, Howard.
>>
>> [ adding Ted too ]
>>
>> On 01/19/2015 07:46 AM, Howard Chu wrote:
>>> Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
> Peter Hurley wrote:
>> Commit 26df6d13406d1 ("tty: Add
On 01/19/2015 11:37 AM, Theodore Ts'o wrote:
> On Mon, Jan 19, 2015 at 09:57:23AM -0500, Peter Hurley wrote:
>>
>> This reader set EOL2 to DISABLED_CHAR earlier, and left EOL unchanged.
>> I have seen userspace code that expects a line to be no longer than 4096
>> chars.
>
> Userspace code that
On Mon, Jan 19, 2015 at 09:57:23AM -0500, Peter Hurley wrote:
>
> This reader set EOL2 to DISABLED_CHAR earlier, and left EOL unchanged.
> I have seen userspace code that expects a line to be no longer than 4096
> chars.
Userspace code that does this is going to be very fragile. Input from
the
Peter Hurley wrote:
Thanks, Howard.
[ adding Ted too ]
On 01/19/2015 07:46 AM, Howard Chu wrote:
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
the undocumented EXTPROC input processing
Hi Ted,
On 01/18/2015 11:55 PM, Theodore Ts'o wrote:
> Line mode goes back to BSD 4.x days, and it's useful over high latency
> links --- i.e., the sort of thing that you get with stone age cellular
> data networks (i.e., the sort of thing that we still have the US),
> amateur packet radio links,
Thanks, Howard.
[ adding Ted too ]
On 01/19/2015 07:46 AM, Howard Chu wrote:
> Peter Hurley wrote:
>> On 01/18/2015 05:45 PM, Howard Chu wrote:
>>> Peter Hurley wrote:
Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
the undocumented EXTPROC input processing mode,
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in non-canonical
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in non-canonical
Thanks, Howard.
[ adding Ted too ]
On 01/19/2015 07:46 AM, Howard Chu wrote:
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing mode, which ignores the
On Mon, Jan 19, 2015 at 09:57:23AM -0500, Peter Hurley wrote:
This reader set EOL2 to DISABLED_CHAR earlier, and left EOL unchanged.
I have seen userspace code that expects a line to be no longer than 4096
chars.
Userspace code that does this is going to be very fragile. Input from
the tty
Peter Hurley wrote:
Thanks, Howard.
[ adding Ted too ]
On 01/19/2015 07:46 AM, Howard Chu wrote:
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing
On 01/19/2015 11:37 AM, Theodore Ts'o wrote:
On Mon, Jan 19, 2015 at 09:57:23AM -0500, Peter Hurley wrote:
This reader set EOL2 to DISABLED_CHAR earlier, and left EOL unchanged.
I have seen userspace code that expects a line to be no longer than 4096
chars.
Userspace code that does this
Hi Ted,
On 01/18/2015 11:55 PM, Theodore Ts'o wrote:
Line mode goes back to BSD 4.x days, and it's useful over high latency
links --- i.e., the sort of thing that you get with stone age cellular
data networks (i.e., the sort of thing that we still have the US),
amateur packet radio links,
On 01/19/2015 11:36 AM, Howard Chu wrote:
Peter Hurley wrote:
[...]
A description of how the pty master uses EXTPROC to implement line mode would
be very helpful, especially to people working in the tty code (eg., me,
although
I don't need it now).
The original patch submission carried
Peter Hurley wrote:
On 01/19/2015 11:36 AM, Howard Chu wrote:
Peter Hurley wrote:
Thanks, Howard.
[ adding Ted too ]
On 01/19/2015 07:46 AM, Howard Chu wrote:
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support
On 01/19/2015 11:36 AM, Howard Chu wrote:
Peter Hurley wrote:
Thanks, Howard.
[ adding Ted too ]
On 01/19/2015 07:46 AM, Howard Chu wrote:
Peter Hurley wrote:
On 01/18/2015 05:45 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
Peter Hurley wrote:
Ok.
I might see if I can get telnet + a revised kernel interface to work together;
I'll
let you know if this works out.
The patch here
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=585527#20 still
applies cleanly to current Ubuntu netkit-telnet source and works.
Line mode goes back to BSD 4.x days, and it's useful over high latency
links --- i.e., the sort of thing that you get with stone age cellular
data networks (i.e., the sort of thing that we still have the US),
amateur packet radio links, etc. So it's certianly a nice to have, if
someone is willing
On 01/18/2015 05:44 PM, Howard Chu wrote:
> Peter Hurley wrote:
>> Hi Howard,
>>
>> On 01/18/2015 05:09 PM, Howard Chu wrote:
>>> Peter Hurley wrote:
Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
the undocumented EXTPROC input processing mode, which ignores the
Peter Hurley wrote:
Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in non-canonical
mode.
Although intended to provide a transparent mechanism for
Peter Hurley wrote:
Hi Howard,
On 01/18/2015 05:09 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in
Hi Howard,
On 01/18/2015 05:09 PM, Howard Chu wrote:
> Peter Hurley wrote:
>> Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
>> the undocumented EXTPROC input processing mode, which ignores the ICANON
>> setting and forces pty slave input to be processed in non-canonical
>>
Commit 26df6d13406d1 ("tty: Add EXTPROC support for LINEMODE") added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in non-canonical
mode.
Although intended to provide a transparent mechanism for local line
edit with
Line mode goes back to BSD 4.x days, and it's useful over high latency
links --- i.e., the sort of thing that you get with stone age cellular
data networks (i.e., the sort of thing that we still have the US),
amateur packet radio links, etc. So it's certianly a nice to have, if
someone is willing
On 01/18/2015 05:44 PM, Howard Chu wrote:
Peter Hurley wrote:
Hi Howard,
On 01/18/2015 05:09 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and
Hi Howard,
On 01/18/2015 05:09 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in non-canonical
mode.
Peter Hurley wrote:
Hi Howard,
On 01/18/2015 05:09 PM, Howard Chu wrote:
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in
Peter Hurley wrote:
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in non-canonical
mode.
Although intended to provide a transparent mechanism for
Commit 26df6d13406d1 (tty: Add EXTPROC support for LINEMODE) added
the undocumented EXTPROC input processing mode, which ignores the ICANON
setting and forces pty slave input to be processed in non-canonical
mode.
Although intended to provide a transparent mechanism for local line
edit with
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