include/mpw/stat.h

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