#include <db.h>

int
DB_ENV->get_home(DB_ENV *dbenv, const char **homep);  

The DB_ENV->get_home() method returns the database environment home directory. This directory is normally identified when the DB_ENV->open() method is called.

The DB_ENV->get_home() method may be called at any time during the life of the application.

The DB_ENV->get_home() method returns a non-zero error value on failure and 0 on success.