July 24, 2008 04:03am pdt

1. Adam314 470,034
2. ozo 332,538
3. FishMonger 102,215
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5. hielo 57,450
6. mjcoyne 52,693
7. nedfine 29,740
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9. clockwat... 22,660
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14. suhasbha... 15,250
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1. ozo 3,604,303
2. Adam314 1,392,453
3. Tintin 727,609
4. kandura 579,965
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6. mjcoyne 504,831
7. FishMonger 454,849
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15. Tim_Utschig 113,107

08.24.2006 at 08:25PM PDT, ID: 21966974

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8.8

500pts - Use Net::Telnet and be able to look for "<-- MORE -->"

Zone: Perl Programming Language

Tags: perl, telnet

Here is the code I am using, I am looking for a way to get pass the "<-- MORE -->".
The device happens to be a Cisco Pix Firewall, I know there are other cisco telnet perl modules, however they support IOS only which mean Cisco routers - not the Cisco Pix firewall.

Thanks,
Mark

********
#http://search.cpan.org/~jrogers/Net-Telnet-3.03/lib/Net/Telnet.pm

use Net::Telnet;
$telnet = new Net::Telnet ( Timeout=>10,
Errmode=>'die');

$telnet = new Net::Telnet( Timeout => 10,
Errmode=>'die',
,Dump_log => 'dump.log'
,Input_log => 'input.log'
,Output_log => 'output.log');

$telnet->open('192.168.1.250');
$telnet->waitfor('/password: $/i');
$telnet->print('telnet-password');

$telnet->waitfor('/mypix> $/i');
$telnet->print('en');

$telnet->waitfor('/password: $/i');
$telnet->print('en-password');

$output = $telnet->waitfor('/mypix# $/i');
$telnet->print('show config');

****************

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Question Stats

Zone: Programming

Question Asked By: markpalinux

Solution Provided By: jmcg

Participating Experts: 4

Solution Grade: A

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08.25.2006 at 03:15AM PDT, ID: 17388215

Rank: Genius

ozo:

where do you get the "<-- MORE -->"?

08.25.2006 at 04:12AM PDT, ID: 17388439

Rank: Sage

mjcoyne:

What would you do to get past <--MORE--> in a live telnet session?

08.25.2006 at 06:08AM PDT, ID: 17389069

markpalinux:

if you do a "ls -l | more" on a linux box.

in a live telnet session you would press the space bar.

Thanks,
Mark

08.25.2006 at 08:04AM PDT, ID: 17390095

Rank: Sage

mjcoyne:

I would look at the Net::Telnet::Cisco (http://search.cpan.org/~joshua/Net-Telnet-Cisco-1.10/Cisco.pm) module, and see how the More prompt is handled by Cisco.pm; it should be adaptable to what you want to do.

I think it's going to require setting the prompt:

$telnet->prompt("/<-- MORE -->/");

and then sending a space:

$telnet->cmd(' ');

or perhaps printing a space:

$telnet->print(' ');

but I have no way to test this out...

Assisted Solution

08.25.2006 at 08:48AM PDT, ID: 17390483

Rank: Genius

Adam314:

I wouldn't think you would use |more when using net::telnet. If you wanted to get a list of files, your perl script could process all the files, you wouldn't need to use |more, because you don't have a screen.

Assisted Solution

08.25.2006 at 09:34AM PDT, ID: 17390880

Rank: Sage

mjcoyne:

I think what's happening is that the router/firewall sends the data from $telnet->print('show config') to the screen in such a way that the --MORE-- delay is used, as the data is greater than a screenful. Another example of one of those great features that you wish you could shut off...:)

08.25.2006 at 09:41AM PDT, ID: 17390939

markpalinux:

mjcoyne - you are correct --MORE-- is coming from the router, as it is a screenful.

I will try what you suggested above and will let you know the results.

Thanks,
Mark

08.25.2006 at 09:44PM PDT, ID: 17394563

Rank: Sage

jmcg:

Changing the prompt to match the "MORE" string will help if you know that will be the next prompt. I expect there will be situations where you don't know whether the next prompt will be a "MORE" or the end of the list. In this case, I think you'd need to move away from using the 'cmd' method and use the print/waitfor methods. The 'waitfor' method allows you to specify more than one string or pattern that is to be waited for. You have to test which match occurred to decide what to do next.

Accepted Solution

10.03.2006 at 10:17PM PDT, ID: 17657091

Rank: Sage

jmcg:

markpalinux -

This old question needs to be finalized accept an answer, split points, or get a refund. For information on your options, please see

http://www.experts-exchange.com/help.jsp#hs5

Once more than 21 days have passed with no new responses posted, a question is considered abandoned. If you do nothing, I will make a recommendation to the moderators on its resolution in approximately 4 to 14 days.

EXPERTS - I would appreciate any comments that would help me in making a recommendation.

jmcg
EE Page Editor for Perl wearing my Cleanup hat

10.05.2006 at 08:07AM PDT, ID: 17669364

markpalinux:

What I come to find out is that rather then use the 'show config' it was better to use the routers or switches command line to use tftp and have the config of the device be sent there.

Still wish I could have found an answer for --more-- though.

Thanks,
Mark

10.05.2006 at 08:29AM PDT, ID: 17669573

Rank: Genius

Adam314:

The answer from jmcg doesn't work with --more--?

Using his suggestion, you wouldn't use the cmd function to send commands, you would use a combination of print and waitfor. The waitfor would wait for either the --more-- or the next command prompt. If it saw --more--, it would send another print to get the next screenful. If it saw the next command prompt, it would know the command had finished. You could even put this new stuff in a new function, so it could be used from your app just like the cmd function... for example, call it cmd_with_more.

20080716-EE-VQP-33