[mib2c .c code] code for MODE_SET_ACTION

Hi all,
I have run mib2c and obtained my .c and .h files. I have one single RW scalar variable named "id". I I have completed the MODE_GET case by giving the pointor and lenght of "id". The problem is that i don't know how to complete the MODE_SET_ACTION, all i want is to affect an integer value to my scalar object "id".
Please help, I'm totally begineer. Thanks a lot.

here is the C code given by mib2c:


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

/*
 * Then, we declare the variables we want to be accessed with their default values 
 */
 
static int id = 1

void
init_leadTechDesign(void)
{
     /*
     * the OIDs we want to register our scalars at
     */
    static oid      id_oid[] = { 1, 3, 6, 1, 4, 1, 31900, 1, 2, 1 };
     /*
     * a debugging statement 
     */
    DEBUGMSGTL(("leadTechDesign", "Initializing\n"));

    netsnmp_register_scalar(netsnmp_create_handler_registration
                            ("id", handle_id, id_oid, OID_LENGTH(id_oid),
}
int
handle_id(netsnmp_mib_handler *handler,
          netsnmp_handler_registration *reginfo,
          netsnmp_agent_request_info *reqinfo,
          netsnmp_request_info *requests)
{
    int             ret;

    switch (reqinfo->mode) {

    case MODE_GET:
        snmp_set_var_typed_value(requests->requestvb, ASN_INTEGER,
                                 (u_char *) &id
                                 /* XXX: a pointer to the scalar's data */
                                 , sizeof(id)
                                 /*
                                  * XXX: the length of the data in bytes 
                                  */ );
        DEBUGMSGTL(("LTD-MIB", "id current value :  %d\n", id));
        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:
        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:
        if ( /* XXX if malloc, or whatever, failed: */ ) {
            netsnmp_set_request_error(reqinfo, requests,
                                      SNMP_ERR_RESOURCEUNAVAILABLE);
        }
        break;

    case MODE_SET_FREE:
        break;

    case MODE_SET_ACTION:
        /*         * XXX: perform the value change here          */
        if ( /* XXX: error? */ ) {
            netsnmp_set_request_error(reqinfo, requests, /* some error */
                                      );
        }
        break;

    case MODE_SET_COMMIT:
        if ( /* XXX: error? */ ) {
            netsnmp_set_request_error(reqinfo, requests,
                                      SNMP_ERR_COMMITFAILED);
        }
        break;

    case MODE_SET_UNDO:
        if ( /* XXX: error? */ ) {
            netsnmp_set_request_error(reqinfo, requests,
                                      SNMP_ERR_UNDOFAILED);
        }
        break;
    default:
        snmp_log(LOG_ERR, "unknown mode (%d) in handle_id\n",
                 reqinfo->mode);
        return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}

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