Hex return needs to be unpacked?


There's more than one way to do things
	PerlMonks

Hex return needs to be unpacked?

by c (Hermit)

on Mar 03, 2002 at 00:45 UTC ( [id://148919]=perlquestion: print w/replies, xml )

Need Help??

c has asked for the wisdom of the Perl Monks concerning the following question:

I am using SNMP.pm to gather some information from routers on my company network. For one OID in particular, when the query returns a valid answer, all goes well and my variable is set to the value of the response:

my $response = $session->get("$oid");
[download]

However, when the query receives an null string from the remote device, the variable $response is set to a hex value:

enterprises.9.9.23.1.2.1.1.6.1.1 =  Hex: 00 00 00 00 00 00 82 48 0C 00
+ 01 4D 48 0C 00 00
A8 48 0C 00 00 EE 48 0C 00 00 00 00 01 00 00 00
03 00 00 00 06 00 00 00 01 00 00 00 02 00 00 00
01 00 00 00 11 00 00 00 07 00 00 00 01 00 00 00
03 00 00
[download]

Is this something that I can use unpack to find a string response?

thanks -c

Comment on Hex return needs to be unpacked? Select or Download Code

Replies are listed 'Best First'.
Re: Hex return needs to be unpacked? by Ryszard (Priest) on Mar 03, 2002 at 06:52 UTC
You have a conflicting statement here. If $response is a hex value, then, by definition you're query cant have returned a null (or rather undef), unless there is some default thing in the pm. `print pack("H*", $response);` I think is the answer to your question.	[reply] [d/l]

Back to Seekers of Perl Wisdom

Domain Nodelet^?

www.com | www.net | www.org

Node Status^?

node history
Node Type: perlquestion [id://148919]
Approved by root
help

Chatterbox^?

How do I use this? • Last hour • Other CB clients

Other Users^?

Others rifling through the Monastery: (5)

As of 2024-04-18 05:15 GMT

Sections^?

Information^?

Find Nodes^?

Leftovers^?

Today I Learned

Voting Booth^?

No recent polls found