#include <db.h> int DB_ENV->get_lg_max(DB_ENV *dbenv, u_int32_t *lg_maxp);
         The DB_ENV->get_lg_max() method returns the maximum log file size.
         You can manage this value using the
         DB_ENV->set_lg_max()
         method. 
    
         The DB_ENV->get_lg_max() method may be called at any time during the
         life of the application.
    
         The DB_ENV->get_lg_max() 
            
                  method returns a non-zero error value on failure and 0 on success.