Problem create row with mib2c.iterate.conf structure

I've a littrle problem to insert rows in my table.
I used mib2c.iterate.conf to generate code for my adslAturPhysTable from ADSL-LINE-MIB.
This table uses ifIndex as index (I don't understand very well this kind of index it could be external index?!) and I try to insert a row with this structure:

/** Initialize the adslAturPhysTable table by defining its contents and how it's structured */

void
initialize_table_adslAturPhysTable(void)
{
    static oid      adslAturPhysTable_oid[] =
        { 1, 3, 6, 1, 2, 1, 10, 94, 1, 1, 3 };
    size_t          adslAturPhysTable_oid_len =
        OID_LENGTH(adslAturPhysTable_oid);
.......
......
.....

    /*
     * Initialise the contents of the table here 
    */
     
     adslAturPhysTable_head=adslAturPhysTable_createEntry(1); 
         
}

............
...........
    * Typical data structure for a row entry 
     */
struct adslAturPhysTable_entry {
    /*
     * Index values 
     */
    long            ifIndex;

    /*
     * Column values 
     */
    char            adslAturInvSerialNumber;
    char            adslAturInvVendorID;
    char            adslAturInvVersionNumber;
    long            adslAturCurrSnrMgn;
    u_long          adslAturCurrAtn;
    char            adslAturCurrStatus;
    long            adslAturCurrOutputPwr;
    u_long          adslAturCurrAttainableRate;

    /*
     * Illustrate using a simple linked list 
     */
    int             valid;
    struct adslAturPhysTable_entry *next;
};

struct adslAturPhysTable_entry *adslAturPhysTable_head=NULL;


/*
 * create a new row in the (unsorted) table 
 */
struct adslAturPhysTable_entry *
adslAturPhysTable_createEntry(long ifIndex)
{
    struct adslAturPhysTable_entry *entry=NULL;

    entry = SNMP_MALLOC_TYPEDEF(struct adslAturPhysTable_entry);
    if (!entry)
        return NULL;

    entry->ifIndex = ifIndex;
    
    /* iserisco dei valori standard */
    entry->adslAturInvSerialNumber="a";
    entry->adslAturInvVendorID="r";
    entry->adslAturInvVersionNumber="u";
    entry->adslAturCurrSnrMgn=3;
    entry->adslAturCurrAtn=7;
    entry->adslAturCurrStatus="t";
    entry->adslAturCurrOutputPwr=5;
    entry->adslAturCurrAttainableRate=8;
    adslAturPhysTable_head=entry;
     entry->next =NULL;
    return entry;
}


the problem is when i start my subagent that launch initialize_table_adslAturPhysTable, and I try to do snmpwalk command but I received:

[root@Kasko-Fabio demon_table_phys]# snmpwalk -c rw -v 2c localhost -IR adslAturPhysTable
Error in packet.
Reason: (genError) A general failure occured
Failed object: ADSL-LINE-MIB::adslAturPhysTable

ADSL-LINE-MIB::adslAturPhysTable = No Such Object available on this agent at this OID

And my subagent crash 
root@Kasko-Fabio demon_table_phys]# ./adsl-demon-phy
example-demon is up and running.
Segmentation fault (core dumped)


What's wrong ? How can i create row ???





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