/* Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* * POSIX Standard: 5.6 File Characteristics */ #ifndef _SYS_STAT_H #define _SYS_STAT_H 1 #include #include /* For __mode_t and __dev_t. */ __BEGIN_DECLS #include #if defined(__USE_BSD) || defined(__USE_MISC) #define S_IFMT __S_IFMT #define S_IFDIR __S_IFDIR #define S_IFCHR __S_IFCHR #define S_IFBLK __S_IFBLK #define S_IFREG __S_IFREG #ifdef __S_IFLNK #define S_IFLNK __S_IFLNK #endif #ifdef __S_IFSOCK #define S_IFSOCK __S_IFSOCK #endif #ifdef __S_IFIFO #define S_IFIFO __S_IFIFO #endif #endif /* Test macros for file types. */ #define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask)) #define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR) #define S_ISCHR(mode) __S_ISTYPE((mode), __S_IFCHR) #define S_ISBLK(mode) __S_ISTYPE((mode), __S_IFBLK) #define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG) #ifdef __S_IFIFO #define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFIFO) #endif #ifdef __USE_BSD #ifdef __S_IFLNK #define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) #endif #ifdef __S_IFSOCK #define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK) #endif #endif /* Protection bits. */ #define S_ISUID __S_ISUID /* Set user ID on execution. */ #define S_ISGID __S_ISGID /* Set group ID on execution. */ #if defined(__USE_BSD) || defined(__USE_MISC) /* Save swapped text after use (sticky bit). This is pretty well obsolete. */ #define S_ISVTX __S_ISVTX #endif #define S_IRUSR __S_IREAD /* Read by owner. */ #define S_IWUSR __S_IWRITE /* Write by owner. */ #define S_IXUSR __S_IEXEC /* Execute by owner. */ /* Read, write, and execute by owner. */ #define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC) #if defined(__USE_MISC) && defined(__USE_BSD) #define S_IREAD S_IRUSR #define S_IWRITE S_IWUSR #define S_IEXEC S_IXUSR #endif #define S_IRGRP (S_IRUSR >> 3) /* Read by group. */ #define S_IWGRP (S_IWUSR >> 3) /* Write by group. */ #define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */ /* Read, write, and execute by group. */ #define S_IRWXG (S_IRWXU >> 3) #define S_IROTH (S_IRGRP >> 3) /* Read by others. */ #define S_IWOTH (S_IWGRP >> 3) /* Write by others. */ #define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */ /* Read, write, and execute by others. */ #define S_IRWXO (S_IRWXG >> 3) #ifdef __USE_BSD /* Macros for common mode bit masks. */ #define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */ #define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */ #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666 */ #define S_BLKSIZE 512 /* Block size for `st_blocks'. */ #endif /* Get file attributes for FILE and put them in BUF. */ extern int __stat __P ((__const char *__file, struct stat *__buf)); extern int stat __P ((__const char *__file, struct stat *__buf)); /* Get file attributes for the file, device, pipe, or socket that file descriptor FD is open on and put them in BUF. */ extern int __fstat __P ((int __fd, struct stat *__buf)); extern int fstat __P ((int __fd, struct stat *__buf)); /* Get file attributes about FILE and put them in BUF. If FILE is a symbolic link, do not follow it. */ extern int __lstat __P ((__const char *__file, struct stat *__buf)); #if defined(__USE_BSD) || defined(__USE_XOPEN_EXTENDED) extern int lstat __P ((__const char *__file, struct stat *__buf)); #endif /* Set file access permissions for FILE to MODE. This takes an `int' MODE argument because that is what `mode_t's get widened to. */ extern int __chmod __P ((__const char *__file, __mode_t __mode)); extern int chmod __P ((__const char *__file, __mode_t __mode)); /* Set file access permissions of the file FD is open on to MODE. */ extern int __fchmod __P ((int __fd, __mode_t __mode)); #if defined(__USE_BSD) || defined(__USE_XOPEN_EXTENDED) extern int fchmod __P ((int __fd, __mode_t __mode)); #endif /* Set the file creation mask of the current process to MASK, and return the old creation mask. */ extern __mode_t __umask __P ((__mode_t __mask)); extern __mode_t umask __P ((__mode_t __mask)); #ifdef __USE_GNU /* Get the current `umask' value without changing it. This function is only available under the GNU Hurd. */ extern __mode_t getumask __P ((void)); #endif /* Create a new directory named PATH, with permission bits MODE. */ extern int __mkdir __P ((__const char *__path, __mode_t __mode)); extern int mkdir __P ((__const char *__path, __mode_t __mode)); /* Create a device file named PATH, with permission and special bits MODE and device number DEV (which can be constructed from major and minor device numbers with the `makedev' macro above). */ extern int __mknod __P ((__const char *__path, __mode_t __mode, __dev_t __dev)); #if defined(__USE_MISC) || defined(__USE_BSD) || defined(__USE_XOPEN_EXTENDED) extern int mknod __P ((__const char *__path, __mode_t __mode, __dev_t __dev)); #endif /* Create a new FIFO named PATH, with permission bits MODE. */ extern int mkfifo __P ((__const char *__path, __mode_t __mode)); /* To allow the `struct stat' structure and the file type `mode_t' bits to vary without changing shared library major version number, the `stat' family of functions and `mknod' are in fact inline wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod', which all take a leading version-number argument designating the data structure and bits used. defines _STAT_VER with the version number corresponding to `struct stat' as defined in that file; and _MKNOD_VER with the version number corresponding to the S_IF* macros defined therein. It is arranged that when not inlined these function are always statically linked; that way a dynamically-linked executable always encodes the version number corresponding to the data structures it uses, so the `x' functions in the shared library can adapt without needing to recompile all callers. */ #ifndef _STAT_VER #define _STAT_VER 0 #endif #ifndef _MKNOD_VER #define _MKNOD_VER 0 #endif /* Wrappers for stat and mknod system calls. */ extern int __fxstat __P ((int __ver, int __fildes, struct stat *__stat_buf)); extern int __xstat __P ((int __ver, __const char *__filename, struct stat *__stat_buf)); extern int __lxstat __P ((int __ver, __const char *__filename, struct stat *__stat_buf)); extern int __xmknod __P ((int __ver, __const char *__path, __mode_t __mode, __dev_t *__dev)); #if defined (__GNUC__) && __GNUC__ >= 2 /* Inlined versions of the real stat and mknod functions. */ extern __inline__ int __stat (__const char *__path, struct stat *__statbuf) { return __xstat (_STAT_VER, __path, __statbuf); } extern __inline__ int stat (__const char *__path, struct stat *__statbuf) { return __xstat (_STAT_VER, __path, __statbuf); } extern __inline__ int __lstat(__const char *__path, struct stat *__statbuf) { return __lxstat (_STAT_VER, __path, __statbuf); } #if defined(__USE_BSD) || defined(__USE_XOPEN_EXTENDED) extern __inline__ int lstat(__const char *__path, struct stat *__statbuf) { return __lxstat (_STAT_VER, __path, __statbuf); } #endif extern __inline__ int __fstat (int __fd, struct stat *__statbuf) { return __fxstat (_STAT_VER, __fd, __statbuf); } extern __inline__ int fstat (int __fd, struct stat *__statbuf) { return __fxstat (_STAT_VER, __fd, __statbuf); } extern __inline__ int __mknod (__const char *__path, __mode_t __mode, __dev_t __dev) { return __xmknod (_MKNOD_VER, __path, __mode, &__dev); } #if defined(__USE_MISC) || defined(__USE_BSD) extern __inline__ int mknod (__const char *__path, __mode_t __mode, __dev_t __dev) { return __xmknod (_MKNOD_VER, __path, __mode, &__dev); } #endif #endif __END_DECLS #endif /* sys/stat.h */