Function SQLGetInfo 

pub unsafe extern "C" fn SQLGetInfo(
    connection_handle: SQLHDBC,
    info_type: InfoType,
    info_value_ptr: SQLPOINTER,
    buffer_length: SQLSMALLINT,
    string_length_ptr: *mut SQLSMALLINT,
) -> SQLRETURN

Returns general information about the driver and data source associated with a connection

Returns

SQL_SUCCESS, SQL_SUCCESS_WITH_INFO, SQL_ERROR, or SQL_INVALID_HANDLE