rem: (struct con_postgres*)res->tail = aug_alloc(sizeof(struct con_postgres), (char*)res);
add: res->tail = (unsigned long)aug_alloc (sizeof(struct con_postgres), (char*)res);
context: db_con_t *db_init(const char* _sqlurl){	db_con_t* res;	DLOG("db_init", "entry");	/*	** this is the root memory for this database connection.	*/	res = aug_alloc(sizeof(db_con_t), 0);	memset(res, 0, sizeof(db_con_t));	(struct con_postgres*)res->tail = aug_alloc(sizeof(struct con_postgres), (char*)res);	memset((struct con_postgres*)res->tail, 0, sizeof(struct con_postgres));	if (connect_db(res, _sqlurl) < 0)	{		PLOG("db_init", "Error while trying to open database, FATAL\n");		aug_free(res);		return((db_con_t *) 0);	}	return res;}