Fwd: SNMPTable - Multilple Instances

---------- Forwarded message ----------
From: pavithra s <[email protected]>
Date: Jul 13, 2007 6:28 PM
Subject: Re: SNMPTable - Multilple Instances
To: [email protected]

Can anyone say what i m doing is right or not...........

On 7/13/07, pavithra s <[email protected]> wrote:

> Hi All,
>
> I trying to do multiple instances using Table code generated from mib2c
> tool.I m able to walk,bulkget,etc., but the problem is the agent is not
> recognising the end of the instance.For  example if i have created 2
> instances using createEntry funtion,when i request for the third instance as
> XXX.3,i shoould get Msg like "No such Instance available"
>
> But i m error like
> netsnmp_assert pss->s_snmp_errno != (-11) failed snmp_api.c:3124
> snmp_build()
> send response: Error building ASN.1 representation (build int size 0: s/b
> 4)
> XXX.2
>
> I m attaching what i ve done to generated code:
>
> void
> initialize_table_voltTable(void)
> {
>
> struct voltTable_entry *data=NULL;
>
> ........../* same as generated*/
> ..........
>
> data = GetVoltData();
>      if(data==NULL)
>          return NULL;
> }
> struct voltTable_entry *GetVoltData()
> {
>
>     struct voltTable_entry
> *entry=NULL,*tmp=NULL,*tmp_ptr=NULL,*tmp3=NULL,*tmp4=NULL;
>
>     tmp = SNMP_MALLOC_TYPEDEF(struct voltTable_entry);
>     if (!tmp)
>         return NULL;
>
>     tmp_ptr = SNMP_MALLOC_TYPEDEF(struct voltTable_entry);
>     if (!tmp_ptr)
>         return NULL;
>
> /
>
>     tmp = voltTable_createEntry(0);
>
>
>         tmp->valid =1;
>
>         strncpy(tmp->voltDescr,"Voltage",strlen("Voltage")+1);
>         tmp->voltReading = 18;//voltReading;
>         tmp->voltNominalReading =17;// voltNominalReading;
>         tmp->voltNonRecovLimitHigh =16 ;//voltNonRecovLimitHigh;
>
> //     tmp->next=NULL;
>
>         tmp_ptr = tmp->next;
>
>         tmp_ptr = voltTable_createEntry(1);
>         tmp_ptr->valid =1;
>
>
> strncpy(tmp_ptr->voltDescr,"Voltage2",strlen("Voltage22222222222")+1);
>         tmp_ptr->voltReading = 10;//voltReading;
>         tmp_ptr->voltNominalReading =22;// voltNominalReading;
>         tmp_ptr->voltNonRecovLimitHigh =21 ;//voltNonRecovLimitHigh;
>
>
>         tmp_ptr->next=NULL;
>
> }
>
> netsnmp_variable_list *
> voltTable_get_first_data_point(void **my_loop_context,
>                                void **my_data_context,
>                                netsnmp_variable_list * put_index_data,
>                                netsnmp_iterator_info *mydata)
> {
>
>
>     voltTable_head = GetVoltData();
>
>     if(voltTable_head!=NULL){
>         *my_loop_context = voltTable_head;
>         printf("\n\n index==========in gte_first
> %d",put_index_data->index);
>         return voltTable_get_next_data_point(my_loop_context,
> my_data_context,
>                                          put_index_data, mydata);
>     }
>     else{
>         return NULL;
>     }
> }
>
> netsnmp_variable_list *
> voltTable_get_next_data_point(void **my_loop_context,
>                               void **my_data_context,
>                               netsnmp_variable_list * put_index_data,
>                               netsnmp_iterator_info *mydata)
> {
>
>     struct voltTable_entry *entry =
>                 (struct voltTable_entry *) *my_loop_context;
>
>                 netsnmp_variable_list *idx = put_index_data;
>
>     if (entry)
>      {
> //         printf("\n----innnndex ==---%d",*put_index_data->val.integer);
>         if(*put_index_data->val.integer<2)
>             {
> //             printf("\n in set_value\n\n");
>             snmp_set_var_value(idx,(u_char *)&entry->voltIndex,
> sizeof(entry->voltIndex));
>             idx = idx->next_variable;
>             *my_data_context = (void *)entry;
>             *my_loop_context = (void *)entry->next;
>             return put_index_data;
>             }
>         else{
>             printf("\n I M HERE in else \n\n");
>             return NULL;
>         }
>
>     }
>
>     else {
>         printf("\n I m here-------------in entry=NULL---\n\n");
> //         SET_SNMP_ERROR(SNMPERR_UNKNOWN_OBJID);
>         return NULL;
>     }
>
> }
>
>
>
> This is wht i ve done to the generated template....I tried for very long
> time but i m not able to resolve....  Any help will be of great help....its
> urgent ....


Cab anyone shed some light on this......


Thanks &Regards,
> Pavithra S
>
>
>
>

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