how to get value requested to set in MODE_SET_ACTION

Hi ,
I want to get value which is requested by set in following net-snmp example,
how do i do that? please help me :(

my code is as follows file: nstAgentSubagentObject.c

-----------------------------------------------------------------------------------------------------
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "nstAgentSubagentObject.h"
#include <stdlib.h>

/** Initializes the nstAgentSubagentObject module */
void
init_nstAgentSubagentObject(void)
{
    static oid nstAgentSubagentObject_oid[] = { 1,3,6,1,4,1,8072,2,4,1,1,2
};

  DEBUGMSGTL(("nstAgentSubagentObject", "Initializing\n"));

    netsnmp_register_scalar(
        netsnmp_create_handler_registration("nstAgentSubagentObject",
handle_nstAgentSubagentObject,
                               nstAgentSubagentObject_oid,
OID_LENGTH(nstAgentSubagentObject_oid),
                               HANDLER_CAN_RWRITE
        ));
}

int
handle_nstAgentSubagentObject(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    int ret;
    /* We are never called for a GETNEXT if it's registered as a
       "instance", as it's "magically" handled for us.  */

    /* a instance handler also only hands us one request at a time, so
       we don't need to loop over a list of requests; we'll only get one. */


    long* VALUE;

    VALUE = (long*)malloc(sizeof(long));




    switch(reqinfo->mode) {

        case MODE_GET:



            snmp_set_var_typed_value(requests->requestvb, ASN_INTEGER,
                                     (u_char *) /* XXX: a pointer to the
scalar's data */,
                                     sizeof(long) /* XXX: the length of the
data in bytes */);
            break;

        /*
         * SET REQUEST
         *
         * multiple states in the transaction.  See:
         *
http://www.net-snmp.org/tutorial-5/toolkit/mib_module/set-actions.jpg
         */
        case MODE_SET_RESERVE1:
                /* or you could use netsnmp_check_vb_type_and_size instead
*/
            ret = netsnmp_check_vb_type(requests->requestvb, ASN_INTEGER);
            if ( ret != SNMP_ERR_NOERROR ) {
                netsnmp_set_request_error(reqinfo, requests, ret );
            }
            break;

        case MODE_SET_RESERVE2:
            /* XXX malloc "undo" storage buffer */
            if (0/* XXX if malloc, or whatever, failed: */) {
                netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
            }
            break;

        case MODE_SET_FREE:
            /* XXX: free resources allocated in RESERVE1 and/or
               RESERVE2.  Something failed somewhere, and the states
               below won't be called. */
            break;

        case MODE_SET_ACTION:
            /* XXX: perform the value change here */

            HOW TO GET VALUE HERE?
           ( where do i find value requested by set?)


            if (0/* XXX: error? */) {
                netsnmp_set_request_error(reqinfo, requests,0 /* some error
*/);
            }


            break;

        case MODE_SET_COMMIT:
            /* XXX: delete temporary storage */
            if (0/* XXX: error? */) {
                /* try _really_really_ hard to never get to this point */
                netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_COMMITFAILED);
            }
            break;

        case MODE_SET_UNDO:
            /* XXX: UNDO and return to previous value for the object */
            if (0/* XXX: error? */) {
                /* try _really_really_ hard to never get to this point */
                netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_UNDOFAILED);
            }
            break;

        default:
            /* we should never get here, so this is a really bad error */
            snmp_log(LOG_ERR, "unknown mode (%d) in
handle_nstAgentSubagentObject\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}

---------------------------------------------------------------------------------------------------------------

Thanks in advance !!!!!
mas

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