[First - *please* don't mail me privately, without
Cc:ing the mailing list. I don't have the time or
inclination to offer private, unpaid, SNMP consultancy.
In fact, you should send initial queries to the list
*only*. I've currently stepped back from the lists,
to try and concentrate on other work for a while.]
On Fri, 2005-03-18 at 09:16, V, Bharath (Bharath) wrote:
> Hi Dave,
>
> I am trying to update a octet string variable using snmpset, but i
> am facing some problem.
> If the length of new string and old string is same then it will work fine..
> if the length is different it gives "Wrong length error"
Yes - that's because you've declared things as being "fixed size".
> ******************************************************
> winfo[i] = netsnmp_create_watcher_info((strScalars),
> strlen((strScalars)),
> ASN_OCTET_STR, WATCHER_FIXED_SIZE);
^^^^^^^^^^^^^^^^^^
> Is there any way to update the length of the string???
There should be a discussion of this on the mailing list,
though I don't have a reference to hand. Very briefly,
the watcher structure contains two size fields - max_size
and data_size. These are both initialised to the same value
by the netsnmp_create_watcher_info() call.
If you've got a variable-length string, you'll have to set
one of these manually.
Either:
winfo[i] = netsnmp_create_watcher_info((strScalars),
strlen((strScalars)),
ASN_OCTET_STR, WATCHER_MAX_SIZE);
winfo[i]->max_size = sizeof(strScalars);
or:
winfo[i] = netsnmp_create_watcher_info((strScalars),
sizeof((strScalars)),
ASN_OCTET_STR, WATCHER_MAX_SIZE);
winfo[i]->data_size = strlen(strScalars);
Dave
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