This function retrieves the data source name corresponding to an opened database handle. A DL module is responsible for allocating the memory required for the list.
char * CSSMAPI CSSM_DL_GetDbNameFromHandle (CSSM_DL_DB_HANDLE DLDBHandle)
Returns a string that contains a data store name. If the pointer is NULL, an error has occurred. Use CSSM_GetError to obtain the error code.