[Coco] Tutorial on Telnet/inetd on Coco3 DW4 (is there one?)

[Aaron Wolfe]

That's not good.

Are you still using the nightly disk that has other issues?  I wonder if
this is another.  The dw command output is a stream, not sector based and
the largest single transfer of bytes possible in the stream is 255, not
256.  So... I think it is very unlikely that the output of the dw s l
command actually contained 256 0s aligned perfectly with a sector
boundary..  which I think means that the bit after the redirect is where
things went wrong.  Dw4 will create zero filled sectors to pad out a file
when necessary... if you have a file with 10 sectors in it and write to
sector 12, 11 will be created and zero filled.  Its possible an entire
write operation went missing?  Did you notice any errors or warnings on the
server log screen?  And, is it consistent or do multiple runs yield
different results?  Fwiw this and every other transfer I've tested work
fine here, but I am running an older disk generated from my own clone of
the source which is not current...  bit of a mess.

Anyway, scary because it seems likely the problem is actually in the sector
write, which would likely effect any write op, not just those writing the
output of a dw download.  Hrmmmm .  Need to sort this out.   If you could
submit a bug report with all boxes checked after running that command, I'll
look through it for any clues.
 On Oct 12, 2012 4:15 AM, "Bob Devries" <devries.bob at gmail.com> wrote:

> Hi Aaron.
>
> I tried out one of your suggestions, like this:
>
>> dw s l ftp://www.rtsi.com/OS9/OS9_**6X09/ezgen.lzh<ftp://www.rtsi.com/OS9/OS9_6X09/ezgen.lzh>> /dd/work/ezgen.lzh
>>
>
> and I found that the resultant file was corrupted. One 256 byte block in
> the file was filled with nulls $00.
>
> Thinking that the file might be corrupt on RTSI, I downloaded it with my
> favourite ftp programme (LeapFTP) and the file came across perfectly.
>
> Is there some condition which would cause DW to substitute a block of
> nulls in the file. The file using DW was also shorter by 153 bytes.
>
> Regards, Bob Devries
> Dalby, QLD, Australia
>
> ----- Original Message ----- From: "Aaron Wolfe" <aawolfe at gmail.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Friday, October 12, 2012 2:53 PM
> Subject: Re: [Coco] Tutorial on Telnet/inetd on Coco3 DW4 (is there one?)
>
>
>  On Thu, Oct 11, 2012 at 9:30 PM, Bob Devries <devries.bob at gmail.com>
>> wrote:
>>
>>>
>>> I guess what we need is a realiable way to add a file to an existing
>>> .DSK or
>>> .VHD file. Not sure if wimgtool.exe will fill the bill, or what you'd
>>> use on
>>> Linux.
>>>
>>>
>> If you'd like to do this directly from the CoCo, the commands 'dw
>> server list' and 'dw server dir' are an easy way.
>>
>> To bring a file from your windows machine into the CoCo's disk:
>>
>> dw s l c:\coco\somefile.b09 > /dd/work/somefile.b09
>>
>> Or, maybe you want to bring a file from a web site or ftp site into
>> the CoCo's disk:
>>
>> dw s l ftp://www.rtsi.com/OS9/OS9_**6X09/ezgen.lzh<ftp://www.rtsi.com/OS9/OS9_6X09/ezgen.lzh>> /dd/work/ezgen.lzh
>>
>> A sort of poor man's FTP client in OS9:
>>
>> {N2|03}/DD:dw s d ftp://www.rtsi.com/OS9/OS9_**6X09<ftp://www.rtsi.com/OS9/OS9_6X09>
>> Directory of ftp://www.rtsi.com/OS9/OS9_**6X09<ftp://www.rtsi.com/OS9/OS9_6X09>
>>
>> .bash_logout                  .bash_profile
>> .bashrc                       .kde
>> APPS                          ARCHIVERS
>> COM                           CoCo_Projects.zip
>> EMULATORS                     GAMES
>> GLENSIDE                      GRAPHICS
>> Glenside                      HARDWARE
>> LANGUAGES                     PROG
>> REFERENCE                     SOUNDUTILS
>> SYSMODS                       TELECOM
>> TXT                           UMUSE
>> UTILITIES                     coco
>> coco_archive.iso              coco_archive_gofd_readme.txt
>> cocoos9.zip                   dagorpatch.zip
>> ezgen.lzh                     fsr.lzh
>> gofd.zip                      oscom10.zip
>> vCoCo.cpt.Hqx.sit             xt-hd.lzh
>> xt-rom.lzh
>> {N2|03}/DD:
>>
>>
>> So 'dw s l' will bring in pretty much anything local or remote, dump
>> it to stdout where you can redirect into a local file on the coco, and
>> 'dw s d' will list a directory of most anything that can provide a
>> directory.
>>
>> To go the other way, I'd suggest using httpd on OS9.  Add a line like:
>>
>> 80,runb,httpd
>>
>> to your inetd.conf, restart inetd and visit http://127.0.0.1/dd with a
>> web browser on your server.
>> you can browse the entire OS9 filesystem and download files with the
>> browser.
>>
>> -Aaron
>>
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
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>>
>
>
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