From: "Scott H." <lists@...>
Date: 2012-04-16T10:21:02+09:00
Subject: Help with Ruby and Telnet timeouts

Hi all
I'm having some trouble with Telnet on Ruby
I'm communicating with a server, and the response code is always
something like this:

 >
 ><next>
FCX: ?><next>
FCY: ?>
FCY: ?>drive
FCY: drive>dylan
FCY: dylan>he
FCY: dylan><next>
 ><next>
FCX: ?>drive
FCX: drive>dyl

You switch interfaces between X/Y and Console by using Ctrl-T so that's
fine

My code so far is:

tn = Net::Telnet.new("Host" => "10.54.30.40","Timeout" =>
10,"Telnetmode"=>false,"Prompt"=>"/[.*>]/","Dump_log"=>"C:/temp/dump.log")
tn.puts(?\024)
tn.cmd('dylan stat')
tn.cmd("String"=>'con sh',"match"=>' >')

the responses are valid, and both the dump log and wireshark agree that
the response back from the server is
[block of data]
 >

dump log extract:
# 0x00000: 43 6f 6e 6e  65 63 74 65  64 20 74 6f  20 31 30 2e  Connected
to 10.
# 0x00010: 35 34 2e 33  30 2e 34 30  2e 0a
54.30.40..

> 0x00000: 63 6f 6e 20  73 68 0d 0a                            con sh..

< 0x00000: ff fb 01                                            ...

< 0x00000: 63 6f 6e 20  73 68 0d 0a                            con sh..

< 0x00000: 2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d
----------------
< 0x00010: 2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d
----------------
< 0x00020: 2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d
----------------
< 0x00030: 2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d
----------------
... large block of data....
< 0x00090: 2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d
----------------
< 0x000a0: 2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 2d 2d
----------------
< 0x000b0: 2d 2d 2d 2d  2d 2d 2d 2d  2d 2d 0d 0a  0d 0a 54 77
----------....Tw
< 0x000c0: 65 61 6b 73  3a 20 30 20  3a 20 24 30  30 20 24 30  eaks: 0 :
$00 $0
< 0x000d0: 30 20 24 30  30 20 24 30  30 20 24 30  30 20 24 30  0 $00 $00
$00 $0
< 0x000e0: 30 20 24 30  30 20 24 30  30 20 24 30  30 20 24 30  0 $00 $00
$00 $0
< 0x000f0: 30 20 24 30  30 20 24 30  30 20 24 30  30 20 24 30  0 $00 $00
$00 $0
< 0x00100: 30 20 24 30  30 20 24 30  30 20 0d 0a  0d 0a 46 6c  0 $00 $00
....Fl
< 0x00110: 61 67 73 3a  0d 0a 50 72  69 6e 74 42  61 64 0d 0a
ags:..PrintBad..
< 0x00120: 52 65 70 53  69 67 45 72  72 73 0d 0a  50 72 69 6e
RepSigErrs..Prin
< 0x00130: 74 42 6c 61  63 6b 0d 0a  50 72 69 6e  74 41 6c 6c
tBlack..PrintAll
< 0x00140: 42 6c 61 63  6b 0d 0a 0d  0a                        Black....

< 0x00000: 20 3e                                                >


How do I set up my prompt so that it gives me the correct responses and
doesn't constantly timeout?
The response to my last message in the console was:
irb(main):046:0> tn.cmd("String"=>'con sh',"match"=>' >')
Timeout::Error: timed out while waiting for more data
        from C:/Ruby/lib/ruby/1.9.1/net/telnet.rb:558:in `waitfor'
        from C:/Ruby/lib/ruby/1.9.1/net/telnet.rb:697:in `cmd'
        from (irb):46
        from C:/Ruby/bin/irb:12:in `<main>'

Many thanks
Scott

-- 
Posted via http://www.ruby-forum.com/.