> On Mon, 10 Oct 2005 10:59:59 -0300 Jordan wrote:
> JJLDS> I´ve developed a agent with 2 tables(control table and
> result table). JJLDS> When I query the agent with snmpget or snmpset
> everything goes fine. JJLDS> The problem is when I use snmptable. If
> the control table is empty, a JJLDS> segmentation fault error
> happens when I return NULL(row not found). The JJLDS> same happens
> with result table.
>
> The agent segfaults? What happens if you do snmpgetnext with multiple
> varbinds?
Yes. The same of snmptable, segmentation fault when the get_{first, next}.
/******************************GET_FIRST************************************/
> JJLDS> marca* ptMarcaTemp = NULL;
> JJLDS> netsnmp_variable_list *vptr;
> JJLDS>
> JJLDS> //Get the first node (line) of the structure (linked list)
> JJLDS> ptMarcaTemp = primeiro_no();
/*if ptMarcaTmp is NULL, return NULL*/
> JJLDS>
> JJLDS> *my_loop_context = ptMarcaTemp;
> JJLDS> *my_data_context = ptMarcaTemp;
> JJLDS>
> JJLDS> vptr = put_index_data;
> JJLDS>
> JJLDS> snmp_set_var_value(vptr, (u_char *) &ptMarcaTemp->indice,
> sizeof( JJLDS> ptMarcaTemp->indice ));
>
> If the table is empty, won't ptMarcaTmp be NULL? If so, you shouldn't
> dereference it!
Sorry, When I copied the code to the e-mail I forgot to copy the line of the
return code. Even with this line, nothing occurs. My data structure has top
and a bottom nodes to handle every node the same way.
Is there another idea? That problem makes me crazy.
regards, Jordan.
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