problem with get/set scalar

Hi,

i made some template code using mib2c filled the blanks and modified 
NET-SNMP-EXAMPLES-MIB like this:

netSnmpExampleString OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
 "This is a simple object which merely houses a writable
  String.  It's only purposes is to hold the value of a single
  String.  Writing to it will simply change the value for
  subsequent GET/GETNEXT/GETBULK retrievals.
"
    DEFVAL { hallo }
    ::= { netSnmpExampleScalars 1 }


this is my sample code netSnmpExampleString.c

/*

* Note: this file originally auto-generated by mib2c using

* : mib2c.scalar.conf,v 1.8 2004/10/14 12:57:34 dts12 Exp $

*/

#include <net-snmp/net-snmp-config.h>

#include <net-snmp/net-snmp-includes.h>

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

#include "netSnmpExampleString.h"

#define BUF_LEN 51

/** Initializes the netSnmpExampleString module */

static char netSnmpExampleString[BUF_LEN];

char *tmp_ptr;

void init_control_vars(void)

{

strcpy(netSnmpExampleString, "hallo");


}

void

init_netSnmpExampleString(void)

{

static oid netSnmpExampleString_oid[] = { 1,3,6,1,4,1,8072,2,1,1 };

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


init_control_vars();

netsnmp_register_scalar(

netsnmp_create_handler_registration("netSnmpExampleString", 
handle_netSnmpExampleString,

netSnmpExampleString_oid, OID_LENGTH(netSnmpExampleString_oid),

HANDLER_CAN_RWRITE

));

}

int

handle_netSnmpExampleString(netsnmp_mib_handler *handler,

netsnmp_handler_registration *reginfo,

netsnmp_agent_request_info *reqinfo,

netsnmp_request_info *requests)

{

/* 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. */

switch(reqinfo->mode) {

case MODE_GET:


snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR,

(u_char *)netSnmpExampleString,strlen(netSnmpExampleString));

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:

tmp_ptr = NULL;

if (requests->requestvb->type != ASN_INTEGER ) {

netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_WRONGTYPE);

return SNMP_ERR_WRONGTYPE;

if (requests->requestvb->val.integer < 0 ) {

netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_WRONGVALUE);

return SNMP_ERR_WRONGVALUE;


}

break;

case MODE_SET_RESERVE2:

tmp_ptr = (char *)malloc(requests->requestvb->val_len + 1);

if (tmp_ptr == NULL)

{

printf("SNMP_ERR_RESOURCEUNAVAILABLE!\n");

netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_RESOURCEUNAVAILABLE);

return (SNMP_ERR_RESOURCEUNAVAILABLE);

}

printf("memory alloced!\n");

break;

case MODE_SET_FREE:

if (tmp_ptr)

{

free(tmp_ptr);

printf("memory freed!\n");

}

break;

case MODE_SET_ACTION:

if (tmp_ptr == NULL)

{

printf("SNMP_ERR_RESOURCEUNAVAILABLE!\n");

netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_RESOURCEUNAVAILABLE);

return (SNMP_ERR_RESOURCEUNAVAILABLE);

}

memset(tmp_ptr, 0, BUF_LEN);

strncpy(tmp_ptr, (char *)requests->requestvb->val.integer, (BUF_LEN-1));

break;

case MODE_SET_COMMIT:

if (sizeof(tmp_ptr) >= BUF_LEN)

{

printf("SNMP_ERR_COMMITFAILED!\n");

netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_COMMITFAILED);

return (SNMP_ERR_COMMITFAILED);

}

strcpy(netSnmpExampleString, tmp_ptr);

free(tmp_ptr);

printf("memory freed in commit!\n");

break;

case MODE_SET_UNDO:

free(tmp_ptr);

printf("memory freed in undo!\n");

break;

default:

/* we should never get here, so this is a really bad error */

snmp_log(LOG_ERR, "unknown mode (%d) in handle_netSnmpExampleString\n", 
reqinfo->mode );

return SNMP_ERR_GENERR;

}

return SNMP_ERR_NOERROR;

}

}

i compile this code (it is in agent/mibgoup/examples)  into the agent and 
get always packet error messages.

snmpget -v 1 -c psi 127.0.0.1 netSnmpExampleString.0

Error in packet
Reason:(noSuchName) There is no such variable name in this MIB
Failed object: NET-SNMP-EXAMPLES-MIB::netSnmpExampleString.0


i use net-snmp 5.2.1.2 and the win32sdk.dsw in the win32 folder to compile
the package. On the VS.NET Environment screen it looks like this

-win32sdk (Projectmap)
  |-+ encode_keychange (the project folders)
  |-+ libagent
  |-+ libhelpers
  |-+ libnetsnmptrapd
  |-+ libsnmp
  |-+ netsnmpmibssdk   (the code is in the examples folder of this project)
  |-+ snmpbulkget
  |-+ snmpbulkwalk
  |-+ snmpdelta
  |-+ snmpdf
  |-+ snmpdsdk
  |-+ snmpget
  |-+ snmpgetnext
  |-+ snmpnetstat
  |-+ snmpset
  |-+ snmptranslate
  |-+ snmptrap
  |-+ snmptrapd
  |-+ snmpusm
  |-+ snmpvacm
  |-+ snmpwalk


i follow always follow the instructions in the win32 README to install the 
compiled package

Is something wrong with the code or do i compile the code in a wrong 
projectfolder?

with best regards





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