SECStatus rv;
int ret;
get_dbkey(SECKEYKeyDBHandle *handle, DBT *index){    SECKEYDBKey *dbkey;    DBT entry;    SECStatus rv;        /* get it from the database */    rv = (SECStatus)(* handle->db->get)(handle->db, index, &entry, 0);    if ( rv ) {	PORT_SetError(SEC_ERROR_BAD_DATABASE);	return NULL;    }    /* set up dbkey struct */    dbkey = decode_dbkey(&entry, PRIVATE_KEY_DB_FILE_VERSION);    return(dbkey);}