C Code using SNMP_MSG_GET to 'walk' OIDs

Hi - I'm still struggling to find out why using code based on snmpwalk.c
will not 'walk' OIDs
 
I mentioned trying to use the code to walk from:
.1.3.6.1.2.1.17.4.3.1.2 (dot1dTpFdbPort)
 
Seems it is the same for any OID.
I tried it with 
.1.3.6.1.2.1.3.1
it recovers the first: Fa0/1, and stops as the code recognises the "OID
is not increasing".
 
When I examine the situation with a extra line:
 
snprint_variable(buf, sizeof(buf), vars->name, vars->name_length, vp);
and print out the buffer it produces:
 
IF-MIB::ifName.1 = Wrong Type (should be OCTET STRING): Variable has bad
typebuffer now  (should be OCTET STRING)
 
Does this suggest the variable the data is being loaded into is the
wrong type?
 
As I mentioned before, snmpwalk, from the command line, deals with
either of these OIDs with no problems.
I left the original question for a couple of weeks
 - hope this repeat doesn't annoy anybody, and what I'm missing isn't
too stupid! :o)
 
Regards
 
Greg 


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