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01cad72266
1998-04-21 21:49 Zack Weinberg <zack@rabi.phys.columbia.edu> * misc/sys/cdefs.h: New macro __REDIRECT to support changing the asm symbol name of functions. * include/features.h: Kill redundant test. * dirent/dirent.h: Use new macros to implement __USE_FILE_OFFSET64. * io/ftw.h: Likewise. * io/sys/stat.h: Likewise. * io/sys/statfs.h: Likewise. * io/sys/statvfs.h: Likewise. * libio/stdio.h: Likewise. * resource/sys/resource.h: Likewise. * rt/aio.h: Likewise. * posix/unistd.h: Use new macros for __USE_FILE_OFFSET64 and __FAVOR_BSD. * signal/signal.h: Use new macros for BSD vs. SysV signal(). * misc/Makefile: Drop bsd-compat.c. Make libbsd-compat.a a dummy library. * misc/bsd-compat.c: Removed.
383 lines
12 KiB
C
383 lines
12 KiB
C
/* Copyright (C) 1991, 92, 95, 96, 97, 98 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/*
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* POSIX Standard: 5.6 File Characteristics <sys/stat.h>
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*/
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#ifndef _SYS_STAT_H
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#define _SYS_STAT_H 1
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#include <features.h>
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#include <bits/types.h> /* For __mode_t and __dev_t. */
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#ifdef __USE_UNIX98
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/* The Single Unix specification says that some more types are
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available here. */
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# ifndef dev_t
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typedef __dev_t dev_t;
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# define dev_t dev_t
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# endif
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# ifndef gid_t
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typedef __gid_t gid_t;
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# define gid_t gid_t
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# endif
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# ifndef ino_t
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# ifndef __USE_FILE_OFFSET64
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typedef __ino_t ino_t;
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# else
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typedef __ino64_t ino_t;
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# endif
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# define ino_t ino_t
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# endif
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# ifndef mode_t
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typedef __mode_t mode_t;
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# define mode_t mode_t
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# endif
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# ifndef nlink_t
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typedef __nlink_t nlink_t;
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# define nlink_t nlink_t
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# endif
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# ifndef off_t
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# ifndef __USE_FILE_OFFSET64
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typedef __off_t off_t;
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# else
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typedef __off64_t off_t;
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# endif
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# define off_t off_t
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# endif
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# ifndef uid_t
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typedef __uid_t uid_t;
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# define uid_t uid_t
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# endif
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# ifndef pid_t
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typedef __pid_t pid_t;
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# define pid_t pid_t
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# endif
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#endif /* Unix98 */
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__BEGIN_DECLS
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#include <bits/stat.h>
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#if defined __USE_BSD || defined __USE_MISC || defined __USE_UNIX98
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# define S_IFMT __S_IFMT
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# define S_IFDIR __S_IFDIR
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# define S_IFCHR __S_IFCHR
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# define S_IFBLK __S_IFBLK
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# define S_IFREG __S_IFREG
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# ifdef __S_IFIFO
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# define S_IFIFO __S_IFIFO
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# endif
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# if defined __USE_BSD || defined __USE_MISC
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# ifdef __S_IFLNK
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# define S_IFLNK __S_IFLNK
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# endif
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# ifdef __S_IFSOCK
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# define S_IFSOCK __S_IFSOCK
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# endif
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# endif
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#endif
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/* Test macros for file types. */
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#define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask))
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#define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR)
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#define S_ISCHR(mode) __S_ISTYPE((mode), __S_IFCHR)
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#define S_ISBLK(mode) __S_ISTYPE((mode), __S_IFBLK)
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#define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG)
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#ifdef __S_IFIFO
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# define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFIFO)
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#endif
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#ifdef __USE_BSD
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# ifdef __S_IFLNK
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# define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK)
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# else
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# define S_ISLNK(mode) 0
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# endif
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# ifdef __S_IFSOCK
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# define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
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# endif
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#endif
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/* Protection bits. */
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#define S_ISUID __S_ISUID /* Set user ID on execution. */
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#define S_ISGID __S_ISGID /* Set group ID on execution. */
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#if defined __USE_BSD || defined __USE_MISC
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/* Save swapped text after use (sticky bit). This is pretty well obsolete. */
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# define S_ISVTX __S_ISVTX
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#endif
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#define S_IRUSR __S_IREAD /* Read by owner. */
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#define S_IWUSR __S_IWRITE /* Write by owner. */
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#define S_IXUSR __S_IEXEC /* Execute by owner. */
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/* Read, write, and execute by owner. */
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#define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC)
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#if defined __USE_MISC && defined __USE_BSD
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# define S_IREAD S_IRUSR
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# define S_IWRITE S_IWUSR
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# define S_IEXEC S_IXUSR
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#endif
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#define S_IRGRP (S_IRUSR >> 3) /* Read by group. */
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#define S_IWGRP (S_IWUSR >> 3) /* Write by group. */
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#define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */
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/* Read, write, and execute by group. */
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#define S_IRWXG (S_IRWXU >> 3)
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#define S_IROTH (S_IRGRP >> 3) /* Read by others. */
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#define S_IWOTH (S_IWGRP >> 3) /* Write by others. */
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#define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */
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/* Read, write, and execute by others. */
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#define S_IRWXO (S_IRWXG >> 3)
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#ifdef __USE_BSD
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/* Macros for common mode bit masks. */
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# define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
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# define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */
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# define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/
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# define S_BLKSIZE 512 /* Block size for `st_blocks'. */
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#endif
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/* Get file attributes for FILE and put them in BUF. */
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extern int __stat __P ((__const char *__file, struct stat *__buf));
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/* Get file attributes for the file, device, pipe, or socket
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that file descriptor FD is open on and put them in BUF. */
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extern int __fstat __P ((int __fd, struct stat *__buf));
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/* Get file attributes about FILE and put them in BUF.
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If FILE is a symbolic link, do not follow it. */
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extern int __lstat __P ((__const char *__file, struct stat *__buf));
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#ifndef __USE_FILE_OFFSET64
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extern int stat __P ((__const char *__file, struct stat *__buf));
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extern int fstat __P ((int __fd, struct stat *__buf));
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#else
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# ifdef __REDIRECT
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extern int __REDIRECT (stat, __P ((__const char *__file, struct stat *__buf)),
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stat64);
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extern int __REDIRECT (fstat, __P ((int __fd, struct stat *__buf)), fstat64);
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# else
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# define stat stat64
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# define fstat fstat64
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# endif
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#endif
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#ifdef __USE_LARGEFILE64
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extern int stat64 __P ((__const char *__file, struct stat64 *__buf));
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extern int fstat64 __P ((int __fd, struct stat64 *__buf));
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#endif
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#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
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# ifndef __USE_FILE_OFFSET64
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extern int lstat __P ((__const char *__file, struct stat *__buf));
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# else
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# ifdef __REDIRECT
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extern int __REDIRECT (lstat, __P ((__const char *__file, struct stat *__buf)),
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lstat64);
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# else
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# define lstat lstat64
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# endif
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# endif
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# ifdef __USE_LARGEFILE64
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extern int lstat64 __P ((__const char *__file, struct stat64 *__buf));
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# endif
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#endif
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/* Set file access permissions for FILE to MODE.
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This takes an `int' MODE argument because that
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is what `mode_t's get widened to. */
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extern int __chmod __P ((__const char *__file, __mode_t __mode));
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extern int chmod __P ((__const char *__file, __mode_t __mode));
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/* Set file access permissions of the file FD is open on to MODE. */
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extern int __fchmod __P ((int __fd, __mode_t __mode));
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#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
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extern int fchmod __P ((int __fd, __mode_t __mode));
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#endif
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/* Set the file creation mask of the current process to MASK,
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and return the old creation mask. */
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extern __mode_t __umask __P ((__mode_t __mask));
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extern __mode_t umask __P ((__mode_t __mask));
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#ifdef __USE_GNU
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/* Get the current `umask' value without changing it.
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This function is only available under the GNU Hurd. */
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extern __mode_t getumask __P ((void));
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#endif
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/* Create a new directory named PATH, with permission bits MODE. */
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extern int __mkdir __P ((__const char *__path, __mode_t __mode));
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extern int mkdir __P ((__const char *__path, __mode_t __mode));
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/* Create a device file named PATH, with permission and special bits MODE
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and device number DEV (which can be constructed from major and minor
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device numbers with the `makedev' macro above). */
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extern int __mknod __P ((__const char *__path,
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__mode_t __mode, __dev_t __dev));
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#if defined __USE_MISC || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
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extern int mknod __P ((__const char *__path,
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__mode_t __mode, __dev_t __dev));
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#endif
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/* Create a new FIFO named PATH, with permission bits MODE. */
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extern int mkfifo __P ((__const char *__path, __mode_t __mode));
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/* To allow the `struct stat' structure and the file type `mode_t'
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bits to vary without changing shared library major version number,
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the `stat' family of functions and `mknod' are in fact inline
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wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod',
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which all take a leading version-number argument designating the
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data structure and bits used. <bits/stat.h> defines _STAT_VER with
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the version number corresponding to `struct stat' as defined in
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that file; and _MKNOD_VER with the version number corresponding to
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the S_IF* macros defined therein. It is arranged that when not
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inlined these function are always statically linked; that way a
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dynamically-linked executable always encodes the version number
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corresponding to the data structures it uses, so the `x' functions
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in the shared library can adapt without needing to recompile all
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callers. */
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#ifndef _STAT_VER
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# define _STAT_VER 0
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#endif
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#ifndef _MKNOD_VER
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# define _MKNOD_VER 0
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#endif
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/* Wrappers for stat and mknod system calls. */
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#ifndef __USE_FILE_OFFSET64
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extern int __fxstat __P ((int __ver, int __fildes,
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struct stat *__stat_buf));
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extern int __xstat __P ((int __ver, __const char *__filename,
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struct stat *__stat_buf));
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extern int __lxstat __P ((int __ver, __const char *__filename,
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struct stat *__stat_buf));
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#else
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# ifdef __REDIRECT
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extern int __REDIRECT (__fxstat, __P ((int __ver, int __fildes,
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struct stat *__stat_buf)), __fxstat64);
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extern int __REDIRECT (__xstat, __P ((int __ver, __const char *__filename,
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struct stat *__stat_buf)), __xstat64);
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extern int __REDIRECT (__lxstat __P ((int __ver, __const char *__filename,
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struct stat *__stat_buf)), __lxstat64);
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# else
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# define __fxstat __fxstat64
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# define __xstat __xstat64
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# define __lxstat __lxstat64
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# endif
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#endif
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#ifdef __USE_LARGEFILE64
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extern int __fxstat64 __P ((int __ver, int __fildes,
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struct stat64 *__stat_buf));
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extern int __xstat64 __P ((int __ver, __const char *__filename,
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struct stat64 *__stat_buf));
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extern int __lxstat64 __P ((int __ver, __const char *__filename,
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struct stat64 *__stat_buf));
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#endif
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extern int __xmknod __P ((int __ver, __const char *__path,
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__mode_t __mode, __dev_t *__dev));
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#if defined __GNUC__ && __GNUC__ >= 2
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/* Inlined versions of the real stat and mknod functions. */
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extern __inline__ int __stat (__const char *__path, struct stat *__statbuf)
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{
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return __xstat (_STAT_VER, __path, __statbuf);
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}
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extern __inline__ int stat (__const char *__path, struct stat *__statbuf)
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{
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return __xstat (_STAT_VER, __path, __statbuf);
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}
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extern __inline__ int __lstat (__const char *__path, struct stat *__statbuf)
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{
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return __lxstat (_STAT_VER, __path, __statbuf);
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}
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# if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
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extern __inline__ int lstat (__const char *__path, struct stat *__statbuf)
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{
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return __lxstat (_STAT_VER, __path, __statbuf);
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}
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# endif
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extern __inline__ int __fstat (int __fd, struct stat *__statbuf)
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{
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return __fxstat (_STAT_VER, __fd, __statbuf);
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}
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extern __inline__ int fstat (int __fd, struct stat *__statbuf)
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{
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return __fxstat (_STAT_VER, __fd, __statbuf);
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}
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extern __inline__ int __mknod (__const char *__path, __mode_t __mode,
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__dev_t __dev)
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{ return __xmknod (_MKNOD_VER, __path, __mode, &__dev); }
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# if defined __USE_MISC || defined __USE_BSD
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extern __inline__ int mknod (__const char *__path, __mode_t __mode,
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__dev_t __dev)
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{ return __xmknod (_MKNOD_VER, __path, __mode, &__dev); }
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# endif
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# ifdef __USE_LARGEFILE64
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extern __inline__ int stat64 (__const char *__path, struct stat64 *__statbuf)
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{
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return __xstat64 (_STAT_VER, __path, __statbuf);
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}
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# if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
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extern __inline__ int lstat64 (__const char *__path, struct stat64 *__statbuf)
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{
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return __lxstat64 (_STAT_VER, __path, __statbuf);
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}
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# endif
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extern __inline__ int fstat64 (int __fd, struct stat64 *__statbuf)
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{
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return __fxstat64 (_STAT_VER, __fd, __statbuf);
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}
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# endif
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#endif
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__END_DECLS
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#endif /* sys/stat.h */
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