| [4] | 1 | /* The <sys/stat.h> header defines a struct that is used in the stat() and
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| 2 | * fstat functions. The information in this struct comes from the i-node of
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| 3 | * some file. These calls are the only approved way to inspect i-nodes.
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| 4 | */
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| 5 |
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| 6 | #ifndef _STAT_H
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| 7 | #define _STAT_H
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| 8 |
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| 9 | #ifndef _TYPES_H
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| 10 | #include <sys/types.h>
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| 11 | #endif
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| 12 |
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| 13 | struct stat {
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| 14 | dev_t st_dev; /* major/minor device number */
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| 15 | ino_t st_ino; /* i-node number */
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| 16 | mode_t st_mode; /* file mode, protection bits, etc. */
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| 17 | short int st_nlink; /* # links; TEMPORARY HACK: should be nlink_t*/
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| 18 | uid_t st_uid; /* uid of the file's owner */
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| 19 | short int st_gid; /* gid; TEMPORARY HACK: should be gid_t */
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| 20 | dev_t st_rdev;
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| 21 | off_t st_size; /* file size */
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| 22 | time_t st_atime; /* time of last access */
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| 23 | time_t st_mtime; /* time of last data modification */
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| 24 | time_t st_ctime; /* time of last file status change */
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| 25 | };
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| 26 |
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| 27 | /* Traditional mask definitions for st_mode. */
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| 28 | /* The ugly casts on only some of the definitions are to avoid suprising sign
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| 29 | * extensions such as S_IFREG != (mode_t) S_IFREG when ints are 32 bits.
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| 30 | */
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| 31 | #define S_IFMT ((mode_t) 0170000) /* type of file */
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| 32 | #define S_IFLNK ((mode_t) 0120000) /* symbolic link, not implemented */
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| 33 | #define S_IFREG ((mode_t) 0100000) /* regular */
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| 34 | #define S_IFBLK 0060000 /* block special */
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| 35 | #define S_IFDIR 0040000 /* directory */
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| 36 | #define S_IFCHR 0020000 /* character special */
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| 37 | #define S_IFIFO 0010000 /* this is a FIFO */
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| 38 | #define S_ISUID 0004000 /* set user id on execution */
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| 39 | #define S_ISGID 0002000 /* set group id on execution */
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| 40 | /* next is reserved for future use */
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| 41 | #define S_ISVTX 01000 /* save swapped text even after use */
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| 42 |
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| 43 | /* POSIX masks for st_mode. */
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| 44 | #define S_IRWXU 00700 /* owner: rwx------ */
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| 45 | #define S_IRUSR 00400 /* owner: r-------- */
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| 46 | #define S_IWUSR 00200 /* owner: -w------- */
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| 47 | #define S_IXUSR 00100 /* owner: --x------ */
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| 48 |
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| 49 | #define S_IRWXG 00070 /* group: ---rwx--- */
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| 50 | #define S_IRGRP 00040 /* group: ---r----- */
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| 51 | #define S_IWGRP 00020 /* group: ----w---- */
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| 52 | #define S_IXGRP 00010 /* group: -----x--- */
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| 53 |
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| 54 | #define S_IRWXO 00007 /* others: ------rwx */
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| 55 | #define S_IROTH 00004 /* others: ------r-- */
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| 56 | #define S_IWOTH 00002 /* others: -------w- */
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| 57 | #define S_IXOTH 00001 /* others: --------x */
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| 58 |
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| 59 | /* The following macros test st_mode (from POSIX Sec. 5.6.1.1). */
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| 60 | #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) /* is a reg file */
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| 61 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) /* is a directory */
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| 62 | #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) /* is a char spec */
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| 63 | #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) /* is a block spec */
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| 64 | #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) /* is a pipe/FIFO */
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| 65 | #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) /* is a sym link */
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| 66 |
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| 67 | /* Function Prototypes. */
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| 68 | _PROTOTYPE( int chmod, (const char *_path, _mnx_Mode_t _mode) );
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| 69 | _PROTOTYPE( int fstat, (int _fildes, struct stat *_buf) );
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| 70 | _PROTOTYPE( int mkdir, (const char *_path, _mnx_Mode_t _mode) );
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| 71 | _PROTOTYPE( int mkfifo, (const char *_path, _mnx_Mode_t _mode) );
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| 72 | _PROTOTYPE( int stat, (const char *_path, struct stat *_buf) );
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| 73 | _PROTOTYPE( mode_t umask, (_mnx_Mode_t _cmask) );
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| 74 |
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| 75 | /* Open Group Base Specifications Issue 6 (not complete) */
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| 76 | _PROTOTYPE( int lstat, (const char *_path, struct stat *_buf) );
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| 77 |
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| 78 | #endif /* _STAT_H */
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