Thanks Geet,
This is really strange, you have every thing but still not able to access the
data,
What is the Output of the Following.
vars->val.bitstring
from the email, what ever you did is right, and there is no confusion on that,
if possible for you can u send us "C" file as well to check the sematics before
coming to an conclusion.
--
Anish
________________________________
From: Geet Bhatia <geetbhati...@gmail.com>
To: Anish <anish2g...@yahoo.co.in>
Cc: Net-snmp-coders <Net-snmp-coders@lists.sourceforge.net>
Sent: Tuesday, 10 September 2013 2:38 PM
Subject: Re: Problem in snmpget
Hi Anish,
Thanks for responding.
The output of print_variable is:
00 02 04 08 10 20 40 7E 0C 1E 3B 00 00 0B 0B 0D
09 01 01 16 FF FF FF 00 09 01 01 03 FF FF FF 00
00 00 00 00 00 00 00 00
The ouput of snmpget command is:
SNMPv2-SMI::enterprises.29665.101.1.0 = Hex-STRING: 00 02 04 08 10 20 40 7E 0C
1E 3B 00 00 0B 0B 0D
09 01 01 16 FF FF FF 00 09 01 01 03 FF FF FF 00
00 00 00 00 00 00 00 00
Its showing the Hex-STRING
Thanks & Regards
On Tue, Sep 10, 2013 at 12:59 AM, Anish <anish2g...@yahoo.co.in> wrote:
Hi Geet,
>
>Please send the value of the following,
>
>for(vars = response->variables; vars; vars = vars->next_variable)
>print_variable(vars->name, vars->name_length, vars);
>
>
>
>
>________________________________
> From: Geet Bhatia <geetbhati...@gmail.com>
>To: Net-snmp-coders@lists.sourceforge.net
>Sent: Monday, 9 September 2013 2:22 PM
>Subject: Problem in snmpget
>
>
>
>
>
>Hi,
>
>
>
>I have written a code to send snmp request and receive response from agent.
>The program is also processing the response. For this I memcpy the response in
>a buffer. I am using the following code to copy the response after receiving
>it in "response" snmp_pdu variable:
>
>
>for(vars=response->variables;vars;vars=vars->next_variable)
>{
> if(vars->type == ASN_OCTET_STR)
> {
> char *sp = (char*)malloc(1+vars->val_len);
> memcpy(sp,vars->val.string,vars->val_len);
> sp[vars->val_len] = '\0';
>
>
> //process the sp buffer
>
>
> }
>}
>
>
>The response is of 40 Bytes of ASN_OCTET_STR. The first byte of response is
>always 0.
>
>
>Problem: The problem is I am not getting anything in vars->val.string. Though
>the length returned by vars->val_len is 40 and data type returned by
>vars->type is ASN_OCTET_STR.
>The value sent by agent is correct. I have checked it on wireshark. Even the
>print_variable is printing correct value on console. But I am not able to get
>this value copied in buffer.
>I have also used the function snprint_variable but that too is copying 0 in
>buffer.
>I have also debug the code and the value in vars->val.string is zero.
>
>
>Please help me in resolving this problem.
>
>
>Thanks & RegardsGeet Bhatia
>
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