Memory leak in sub-agents

Hi All,
I am using net-snmp-5.1.2 in RH 9, i am using master sub-agent
concept, whenever i am doing walk on a table memory used by the
sub-agent keeps on growing.

I used mib2c to generate the skeleton code.

mib2c.iterate.conf

Below is the code which i modified to suit our need. Is there anything
wrong with the modification. or any API available to free the memory.

void
initialize_table_channelTable(void)
{
static oid channelTable_oid[] =
{ x, x, x, x, x, x, x, x, x };
netsnmp_table_registration_info *table_info;
netsnmp_handler_registration *my_handler;
netsnmp_iterator_info *iinfo;

/** create the table registration information structures */
table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_inf o);

/** if your table is read only, it's easiest to change the
HANDLER_CAN_RWRITE definition below to HANDLER_CAN_RONLY */
my_handler = netsnmp_create_handler_registration("channelTable" ,

channelTable_handler,
channelTable_oid,
OID_LENGTH
(channelTable_oid),

HANDLER_CAN_RWRITE);
if (!my_handler || !table_info ) {
snmp_log(LOG_ERR,
"malloc failed in initialize_table_channelTable");
return; /* Serious error. */
}
netsnmp_table_helper_add_indexes(table_info, ASN_INTEGER, /* index:
channelId */
0);
table_info->min_column = 1;
table_info->max_column = 7;

DEBUGMSGTL(("initialize_table_channelTable",
"Registering table channelTable as a table
iterator\n"));
netsnmp_register_table_iterator(my_handler, table_info);
}

void
init_ioCardGroup(void)
{
/** here we initialize all the tables we're planning on supporting */
initialize_table_channelTable();
}

/** handles requests for the channelTable table, if anything else needs
to be done */
int
channelTable_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{

netsnmp_request_info *request;
netsnmp_table_request_info *table_info;
netsnmp_variable_list *var;

for (request = requests; request; request = request->next) {
var = request->requestvb;
if (request->processed != 0)
continue;

/** extracts the information about the table from the request */
table_info = netsnmp_extract_table_info(request);
if (table_info == NULL) {
continue;
}

switch (reqinfo->mode) {
case MODE_GET:
switch (table_info->colnum) {
case COLUMN_CHANNELID:
snmp_set_var_typed_value(var, ASN_INTEGER,
(u_char *) /** XXX: column data
*/
, /** XXX: column data length
*/
);
break;

case COLUMN_CHANNELNAME:
snmp_set_var_typed_value(var, ASN_OCTET_STR,
(u_char *) /** XXX: column data
*/
, /** XXX: column data length
*/
);
break;

default:
/** We shouldn't get here */
snmp_log(LOG_ERR,
"problem encountered in channelTable_handler:
unknown column\n");
}
break;

case MODE_SET_RESERVE1:
/** set handling... */

default:
snmp_log(LOG_ERR,
"problem encountered in channelTable_handler:
unsupported mode\n");
}
}
return SNMP_ERR_NOERROR;
}

--
Regards,
Sasikumar.B



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