!
@abstract Sets a specified CRAM option on the open file handle.
@param fp The file handle open the open file.
@param opt The CRAM_OPT_* option.
@param ... Optional arguments, dependent on the option used.
@return 0 for success, or negative if an error occurred.
! @abstract Sets a specified CRAM option on the open file handle. @param fp The file handle open the open file. @param opt The CRAM_OPT_* option. @param ... Optional arguments, dependent on the option used. @return 0 for success, or negative if an error occurred.