projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| b688fc87 WJ |
1 | /* |
| 2 | * Copyright (c) 1982, 1989 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This product includes software developed by the University of | |
| 16 | * California, Berkeley and its contributors. | |
| 17 | * 4. Neither the name of the University nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| 32 | * | |
| 33 | * @(#)dinode.h 7.10 (Berkeley) 5/8/91 | |
| 34 | */ | |
| 35 | ||
| 36 | /* | |
| 37 | * A dinode contains all the meta-data associated with a UFS file. | |
| 38 | * This structure defines the on-disk format of a dinode. | |
| 39 | */ | |
| 40 | ||
| 41 | #define NDADDR 12 /* direct addresses in inode */ | |
| 42 | #define NIADDR 3 /* indirect addresses in inode */ | |
| 43 | ||
| 44 | struct dinode { | |
| 45 | u_short di_mode; /* 0: mode and type of file */ | |
| 46 | short di_nlink; /* 2: number of links to file */ | |
| 47 | uid_t di_uid; /* 4: owner's user id */ | |
| 48 | gid_t di_gid; /* 6: owner's group id */ | |
| 49 | u_quad di_qsize; /* 8: number of bytes in file */ | |
| 50 | time_t di_atime; /* 16: time last accessed */ | |
| 51 | long di_atspare; | |
| 52 | time_t di_mtime; /* 24: time last modified */ | |
| 53 | long di_mtspare; | |
| 54 | time_t di_ctime; /* 32: last time inode changed */ | |
| 55 | long di_ctspare; | |
| 56 | daddr_t di_db[NDADDR]; /* 40: disk block addresses */ | |
| 57 | daddr_t di_ib[NIADDR]; /* 88: indirect blocks */ | |
| 58 | long di_flags; /* 100: status, currently unused */ | |
| 59 | long di_blocks; /* 104: blocks actually held */ | |
| 60 | long di_gen; /* 108: generation number */ | |
| 61 | long di_spare[4]; /* 112: reserved, currently unused */ | |
| 62 | }; | |
| 63 | ||
| 64 | #if BYTE_ORDER == LITTLE_ENDIAN || defined(tahoe) /* ugh! -- must be fixed */ | |
| 65 | #define di_size di_qsize.val[0] | |
| 66 | #else /* BYTE_ORDER == BIG_ENDIAN */ | |
| 67 | #define di_size di_qsize.val[1] | |
| 68 | #endif | |
| 69 | #define di_rdev di_db[0] | |
| 70 | ||
| 71 | /* file modes */ | |
| 72 | #define IFMT 0170000 /* mask of file type */ | |
| 73 | #define IFIFO 0010000 /* named pipe (fifo) */ | |
| 74 | #define IFCHR 0020000 /* character special device */ | |
| 75 | #define IFDIR 0040000 /* directory */ | |
| 76 | #define IFBLK 0060000 /* block special device */ | |
| 77 | #define IFREG 0100000 /* regular file */ | |
| 78 | #define IFLNK 0120000 /* symbolic link */ | |
| 79 | #define IFSOCK 0140000 /* UNIX domain socket */ | |
| 80 | ||
| 81 | #define ISUID 04000 /* set user identifier when exec'ing */ | |
| 82 | #define ISGID 02000 /* set group identifier when exec'ing */ | |
| 83 | #define ISVTX 01000 /* save execution information on exit */ | |
| 84 | #define IREAD 0400 /* read permission */ | |
| 85 | #define IWRITE 0200 /* write permission */ | |
| 86 | #define IEXEC 0100 /* execute permission */ |