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 13struct 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 */ 76