osprey/cygnus/include/mpw/stat.h

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/* The <sys/stat.h> header defines a struct that is used in the stat() and
 * fstat functions.  The information in this struct comes from the i-node of
 * some file.  These calls are the only approved way to inspect i-nodes.
 */

#ifndef _STAT_H
#define _STAT_H

#ifndef _TYPES_H    /* not quite right */
#include <sys/types.h>
#endif

struct stat {
  dev_t st_dev;     /* major/minor device number */
  ino_t st_ino;     /* i-node number */
  mode_t st_mode;   /* file mode, protection bits, etc. */
  short int st_nlink;   /* # links; TEMPORARY HACK: should be nlink_t*/
  uid_t st_uid;     /* uid of the file's owner */
  short int st_gid;   /* gid; TEMPORARY HACK: should be gid_t */
  dev_t st_rdev;
  off_t st_size;    /* file size */
  time_t st_atime;    /* time of last access */
  time_t st_mtime;    /* time of last data modification */
  time_t st_ctime;    /* time of last file status change */
};

/* Traditional mask definitions for st_mode. */
#define S_IFMT  0170000   /* type of file */
#define S_IFREG 0100000   /* regular */
#define S_IFBLK 0060000   /* block special */
#define S_IFDIR 0040000   /* directory */
#define S_IFCHR 0020000   /* character special */
#define S_IFIFO 0010000   /* this is a FIFO */
#define S_ISUID 0004000   /* set user id on execution */
#define S_ISGID 0002000   /* set group id on execution */
        /* next is reserved for future use */
#define S_ISVTX   01000   /* save swapped text even after use */

/* POSIX masks for st_mode. */
#define S_IRWXU   00700   /* owner:  rwx------ */
#define S_IRUSR   00400   /* owner:  r-------- */
#define S_IWUSR   00200   /* owner:  -w------- */
#define S_IXUSR   00100   /* owner:  --x------ */

#define S_IRWXG   00070   /* group:  ---rwx--- */
#define S_IRGRP   00040   /* group:  ---r----- */
#define S_IWGRP   00020   /* group:  ----w---- */
#define S_IXGRP   00010   /* group:  -----x--- */

#define S_IRWXO   00007   /* others: ------rwx */
#define S_IROTH   00004   /* others: ------r-- */ 
#define S_IWOTH   00002   /* others: -------w- */
#define S_IXOTH   00001   /* others: --------x */

/* The following macros test st_mode (from POSIX Sec. 5.6.1.1. */
#define S_ISREG(m)  ((m & S_IFMT) == S_IFREG) /* is a reg file */
#define S_ISDIR(m)  ((m & S_IFMT) == S_IFDIR) /* is a directory */
#define S_ISCHR(m)  ((m & S_IFMT) == S_IFCHR) /* is a char spec */
#define S_ISBLK(m)  ((m & S_IFMT) == S_IFBLK) /* is a block spec */
#define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO) /* is a pipe/FIFO */


/* Function Prototypes. */
#ifndef _ANSI_H
#include <ansi.h>
#endif

_PROTOTYPE( int chmod, (const char *_path, int _mode)     );
_PROTOTYPE( int fstat, (int _fildes, struct stat *_buf)     );
_PROTOTYPE( int mkdir, (const char *_path, int _mode)     );
_PROTOTYPE( int mkfifo, (const char *_path, int _mode)      );
_PROTOTYPE( int stat , (const char *_path, struct stat *_buf)   );
_PROTOTYPE( mode_t umask, (int _cmask)          );

#endif /* _STAT_H */

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