projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| da7c5cc6 | 1 | /* |
| 6d0f0ece KM |
2 | * Copyright (c) 1982, 1989 The Regents of the University of California. |
| 3 | * All rights reserved. | |
| da7c5cc6 | 4 | * |
| 6d0f0ece KM |
5 | * Redistribution and use in source and binary forms are permitted |
| 6 | * provided that the above copyright notice and this paragraph are | |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 16 | * | |
| aa9924e1 | 17 | * @(#)dinode.h 7.8 (Berkeley) %G% |
| da7c5cc6 | 18 | */ |
| d0064d3a BJ |
19 | |
| 20 | /* | |
| 55a2aa38 | 21 | * This structure defines the on-disk format of an inode. |
| d0064d3a | 22 | */ |
| ad30fb67 | 23 | |
| af0b24db SL |
24 | #define NDADDR 12 /* direct addresses in inode */ |
| 25 | #define NIADDR 3 /* indirect addresses in inode */ | |
| d0064d3a | 26 | |
| ad30fb67 | 27 | struct dinode { |
| 55a2aa38 KM |
28 | u_short di_mode; /* 0: mode and type of file */ |
| 29 | short di_nlink; /* 2: number of links to file */ | |
| 30 | uid_t di_uid; /* 4: owner's user id */ | |
| 31 | gid_t di_gid; /* 6: owner's group id */ | |
| aa9924e1 | 32 | u_quad di_qsize; /* 8: number of bytes in file */ |
| 55a2aa38 KM |
33 | time_t di_atime; /* 16: time last accessed */ |
| 34 | long di_atspare; | |
| 35 | time_t di_mtime; /* 24: time last modified */ | |
| 36 | long di_mtspare; | |
| 37 | time_t di_ctime; /* 32: last time inode changed */ | |
| 38 | long di_ctspare; | |
| 39 | daddr_t di_db[NDADDR]; /* 40: disk block addresses */ | |
| 40 | daddr_t di_ib[NIADDR]; /* 88: indirect blocks */ | |
| 41 | long di_flags; /* 100: status, currently unused */ | |
| 42 | long di_blocks; /* 104: blocks actually held */ | |
| 43 | long di_gen; /* 108: generation number */ | |
| 44 | long di_spare[4]; /* 112: reserved, currently unused */ | |
| ad30fb67 KM |
45 | }; |
| 46 | ||
| aa9924e1 | 47 | #if BYTE_ORDER == LITTLE_ENDIAN || defined(tahoe) /* ugh! -- must be fixed */ |
| 55a2aa38 | 48 | #define di_size di_qsize.val[0] |
| aa9924e1 | 49 | #else /* BYTE_ORDER == BIG_ENDIAN */ |
| 55a2aa38 | 50 | #define di_size di_qsize.val[1] |
| 961945a8 | 51 | #endif |
| 55a2aa38 | 52 | #define di_rdev di_db[0] |
| af0b24db | 53 | |
| 55a2aa38 | 54 | /* file modes */ |
| ad30fb67 | 55 | #define IFMT 0170000 /* type of file */ |
| d328121a | 56 | #define IFIFO 0010000 /* named pipe (fifo) */ |
| ad30fb67 KM |
57 | #define IFCHR 0020000 /* character special */ |
| 58 | #define IFDIR 0040000 /* directory */ | |
| 59 | #define IFBLK 0060000 /* block special */ | |
| 60 | #define IFREG 0100000 /* regular */ | |
| 61 | #define IFLNK 0120000 /* symbolic link */ | |
| dc9a2d80 BJ |
62 | #define IFSOCK 0140000 /* socket */ |
| 63 | ||
| ad30fb67 KM |
64 | #define ISUID 04000 /* set user id on execution */ |
| 65 | #define ISGID 02000 /* set group id on execution */ | |
| 66 | #define ISVTX 01000 /* save swapped text even after use */ | |
| 67 | #define IREAD 0400 /* read, write, execute permissions */ | |
| 68 | #define IWRITE 0200 | |
| 69 | #define IEXEC 0100 |