text: 
  #define GETDENTS_BUFSIZ	257
  
  #define ISO9660_STANDARD_ID "CD001" /* Standard code for ISO9660 filesystems */
  
  #define NR_DIR_RECORDS 256	/* Number of dir records to use at the same
  				 * time. */
  #define NR_ATTR_RECS 256	/* Number of extended attributes that is 
  				 * possible to use at the same time */
  /* #define NR_ID_INODES 1024 */	/* The ISO9660 doesn't save the inode numbers.
  				 * There is a table that assign to every inode
  				 * a particular id. This number defines the 
  				 * maximum number of ids the filesystem can 
  				 * handle */
  
  #define NO_ADDRESS (-1)		/* Error constants */
  #define NO_FREE_INODES (-1)
  
  #define PATH_PENULTIMATE 001   /* parse_path stops at last but one name */
  #define PATH_NONSYMBOLIC 004   /* parse_path scans final name if symbolic */
  
  #define DIR_ENTRY_SIZE       sizeof (struct direct)
  #define NR_DIR_ENTRIES(b)   ((b)/DIR_ENTRY_SIZE)
  
  /* Below there are constant of the ISO9660 fs */
  
  #define ISO9660_SUPER_BLOCK_POSITION        (32768)
  #define ISO9660_MIN_BLOCK_SIZE		 2048
  
  /* SIZES FIELDS ISO9660 STRUCTURES */
  #define ISO9660_SIZE_STANDARD_ID 5
  #define ISO9660_SIZE_BOOT_SYS_ID 32
  #define ISO9660_SIZE_BOOT_ID 32
  
  #define ISO9660_SIZE_SYS_ID 32
  #define ISO9660_SIZE_VOLUME_ID 32
  #define ISO9660_SIZE_VOLUME_SET_ID 128
  #define ISO9660_SIZE_PUBLISHER_ID 128
  #define ISO9660_SIZE_DATA_PREP_ID 128
  #define ISO9660_SIZE_APPL_ID 128
  #define ISO9660_SIZE_COPYRIGHT_FILE_ID 37
  #define ISO9660_SIZE_ABSTRACT_FILE_ID 37
  #define ISO9660_SIZE_BIBL_FILE_ID 37
  
  #define ISO9660_SIZE_VOL_CRE_DATE 17
  #define ISO9660_SIZE_VOL_MOD_DATE 17
  #define ISO9660_SIZE_VOL_EXP_DATE 17
  #define ISO9660_SIZE_VOL_EFF_DATE 17
  
  #define ISO9660_SIZE_ESCAPE_SQC 32
  #define ISO9660_SIZE_PART_ID 32
  
  #define ISO9660_SIZE_SYSTEM_USE 64
  
  /* maximum size of length of name file used in dir records */
  #define ISO9660_MAX_FILE_ID_LEN 32
  
  #define MFS_DEV_READ    10001
  #define MFS_DEV_WRITE   10002
  #define MFS_DEV_SCATTER 10003
  #define MFS_DEV_GATHER  10004
  
  #define END_OF_FILE   (-104)	/* eof detected */
  
  #define	offsetof(type, field)	((size_t)(&((type *)0)->field))
  
  /* Miscellaneous constants */
  #define SYS_UID  ((uid_t) 0)	/* uid_t for processes MM and INIT */
  #define SYS_GID  ((gid_t) 0)	/* gid_t for processes MM and INIT */
  