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List:       busybox
Subject:    Re: Question about busybox telnet command
From:       walter harms <wharms () bfs ! de>
Date:       2009-02-23 20:23:41
Message-ID: 49A305CD.7040902 () bfs ! de
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Hi Max,
 i have a theory,
 you screenshot shows that the cursor is in the next line,
 so it looks that it get a "\n" (LineFeed).
 But perhaps you are talking to a dosbox that needs a "\r\n" (CR\LF).
 Because the never sees the \r it does not echo the commands and does actually
 nothing.

perhaps you can try something like:
echo -e "3 @ 50\r\n" | nc 192.168.1.104 3100

(nc is netcat, i see no authentication so i hope that it works of cause i could not
test) If this works it would offer the opportunity to programm that beast very easy
using a simple shell script :)
If this does not work in the first attempt you may try "\n\r".
If everything breaks, use "tcpdump" to sniff the tcp connection like
tcpdump -i <interface> -vvv host 192.168.1.104 mostlikely this will be not on your
phone you may need a "full" linux computer for that.

note: the usual disclaimer applies, if you blow up your device you are on your own \
....

re,
 wh


Max aaaaaaaaaaaaaaaaaaaa schrieb:
> Hi Walter,
> The Busybox version is 1.13.2.  I've attached 3 screenshots which I hope will give \
> you the information you need. 
> In Picture1, I have logged into the Lightfactory telnet server from windows using \
> "telnet 192.168.1.104 3100".  In the telnet session, I then have entered "4 @ \
> 50<Enter>", which is the Lightfactory command to turn on channel 4 at 50%.  You can \
> see it has turned on in the Lightfactory channel window behind the terminal window. \
> Ok, so far so good. 
> In Picture2, I have logged into the Lightfactory telnet server from my phone, using \
> "busybox telnet 192.168.1.104 3100".  I have then entered "3 @ 50<Enter>", which \
> should bring channel 3 to 50%, but does nothing.  By the way, I think you are \
> correct when you say that I shouldn't be able to see other connections, as the "4 @ \
> 50<Enter>" I entered on the first computer does not show up.  However, I can see \
> notifications from the telnet server on the phone, so I know the connection is \
> there. 
> In Picture3, I have returned to the computer and hit the <Enter> key.  The "3 @ \
> 50<Enter>" string that I entered from the phone then executes, and channel 3 is \
> brought to 50%, as expected. 
> Thank you so much for the help, and let me know if there's any other information \
> that I can provide to help you troubleshoot. 
> Max
> 
> 
> 
> 
> 
> 
> ________________________________
> From: walter harms <wharms@bfs.de>
> To: Max aaaaaaaaaaaaaaaaaaaa <dishragwhore@yahoo.com>
> Cc: busybox@busybox.net
> Sent: Friday, February 20, 2009 12:15:04 AM
> Subject: Re: Question about busybox telnet command
> 
> 
> 
> Max aaaaaaaaaaaaaaaaaaaa schrieb:
> > Hi All,
> > I use a theatrical lighting control software called Lightfactory \
> > (www.lifact.com), which has a telnet server feature that allows you to control \
> > the software remotely.  It works fine on every windows and ubuntu machine I've \
> > ever used, but not on my Android G1 phone on which I have busybox installed. 
> > I can log into the Lightfactory server with the busybox telnet command, and I can \
> > see the commands posted by the software or from other devices, but when I try to \
> > send a command, nothing happens.  However, if on another computer I then hit the \
> > Enter key, the command or whatever else I've typed in is executed.   
> > So it seems like the Enter key on my phone is not doing the same thing as the \
> > Enter key on another machine--is there a special keystroke or something I need to \
> > append to the end of the line to get the telnet server to see the command as \
> > executable?  Or a mode that I can enter? 
> > Thanks for the help, I'm definitely a linux neophyte but I'm excited about all \
> > the possibilities Busybox on my phone opens up. 
> 
> 
> Hi Max,
> please give us a change and tell what version of busybox you are using !
> 
> "I can see the commands posted by the software or from other devices"
> I do not understand with a telnet daemon you should see only your connection ?
> 
> "the command or whatever else I've typed in is executed." ... "get the telnet \
> server to see the command as executable" i am confused, you forgot a "not" ?
> any error messages ?
> 
> can you send a something like a screenshot ?
> 
> 
> re,
> wh
> 
> 
> 
> 
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