diff options
Diffstat (limited to 'io/fcntl.h')
| -rw-r--r-- | io/fcntl.h | 318 |
1 files changed, 0 insertions, 318 deletions
diff --git a/io/fcntl.h b/io/fcntl.h deleted file mode 100644 index a6ccb90a15..0000000000 --- a/io/fcntl.h +++ /dev/null @@ -1,318 +0,0 @@ -/* Copyright (C) 1991-2017 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -/* - * POSIX Standard: 6.5 File Control Operations <fcntl.h> - */ - -#ifndef _FCNTL_H -#define _FCNTL_H 1 - -#include <features.h> - -/* This must be early so <bits/fcntl.h> can define types winningly. */ -__BEGIN_DECLS - -/* Get __mode_t, __dev_t and __off_t .*/ -#include <bits/types.h> - -/* Get the definitions of O_*, F_*, FD_*: all the - numbers and flag bits for `open', `fcntl', et al. */ -#include <bits/fcntl.h> - -/* Detect if open needs mode as a third argument (or for openat as a fourth - argument). */ -#ifdef __O_TMPFILE -# define __OPEN_NEEDS_MODE(oflag) \ - (((oflag) & O_CREAT) != 0 || ((oflag) & __O_TMPFILE) == __O_TMPFILE) -#else -# define __OPEN_NEEDS_MODE(oflag) (((oflag) & O_CREAT) != 0) -#endif - -/* POSIX.1-2001 specifies that these types are defined by <fcntl.h>. - Earlier POSIX standards permitted any type ending in `_t' to be defined - by any POSIX header, so we don't conditionalize the definitions here. */ -#ifndef __mode_t_defined -typedef __mode_t mode_t; -# define __mode_t_defined -#endif - -#ifndef __off_t_defined -# ifndef __USE_FILE_OFFSET64 -typedef __off_t off_t; -# else -typedef __off64_t off_t; -# endif -# define __off_t_defined -#endif - -#if defined __USE_LARGEFILE64 && !defined __off64_t_defined -typedef __off64_t off64_t; -# define __off64_t_defined -#endif - -#ifndef __pid_t_defined -typedef __pid_t pid_t; -# define __pid_t_defined -#endif - -/* For XPG all symbols from <sys/stat.h> should also be available. */ -#ifdef __USE_XOPEN2K8 -# include <bits/types/struct_timespec.h> -#endif -#if defined __USE_XOPEN || defined __USE_XOPEN2K8 -# include <bits/stat.h> - -# 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_IFIFO -# define S_IFIFO __S_IFIFO -# endif -# ifdef __S_IFLNK -# define S_IFLNK __S_IFLNK -# endif -# if (defined __USE_UNIX98 || defined __USE_XOPEN2K8) && defined __S_IFSOCK -# define S_IFSOCK __S_IFSOCK -# 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_MISC || defined __USE_XOPEN -/* 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) - -# 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) -#endif - -#ifdef __USE_MISC -# ifndef R_OK /* Verbatim from <unistd.h>. Ugh. */ -/* Values for the second argument to access. - These may be OR'd together. */ -# define R_OK 4 /* Test for read permission. */ -# define W_OK 2 /* Test for write permission. */ -# define X_OK 1 /* Test for execute permission. */ -# define F_OK 0 /* Test for existence. */ -# endif -#endif /* Use misc. */ - -/* XPG wants the following symbols. <stdio.h> has the same definitions. */ -#if defined __USE_XOPEN || defined __USE_XOPEN2K8 -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Seek from end of file. */ -#endif /* XPG */ - -/* The constants AT_REMOVEDIR and AT_EACCESS have the same value. AT_EASSESS - is meaningful only to faccessat, while AT_REMOVEDIR is meaningful only to - unlinkat. The two functions do completely different things and therefore, - the flags can be allowed to overlap. For example, passing AT_REMOVEDIR to - faccessat would be undefined behavior and thus treating it equivalent to - AT_EACCESS is valid undefined behavior. */ -#ifdef __USE_ATFILE -# define AT_FDCWD -100 /* Special value used to indicate - the *at functions should use the - current working directory. */ -# define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */ -# define AT_REMOVEDIR 0x200 /* Remove directory instead of - unlinking file. */ -# define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */ -# ifdef __USE_GNU -# define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount - traversal. */ -# define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname. */ -# endif -# define AT_EACCESS 0x200 /* Test access permitted for - effective IDs, not real IDs. */ -#endif - -/* Do the file control operation described by CMD on FD. - The remaining arguments are interpreted depending on CMD. - - This function is a cancellation point and therefore not marked with - __THROW. */ -extern int fcntl (int __fd, int __cmd, ...); - -/* Open FILE and return a new file descriptor for it, or -1 on error. - OFLAG determines the type of access used. If O_CREAT or O_TMPFILE is set - in OFLAG, the third argument is taken as a `mode_t', the mode of the - created file. - - This function is a cancellation point and therefore not marked with - __THROW. */ -#ifndef __USE_FILE_OFFSET64 -extern int open (const char *__file, int __oflag, ...) __nonnull ((1)); -#else -# ifdef __REDIRECT -extern int __REDIRECT (open, (const char *__file, int __oflag, ...), open64) - __nonnull ((1)); -# else -# define open open64 -# endif -#endif -#ifdef __USE_LARGEFILE64 -extern int open64 (const char *__file, int __oflag, ...) __nonnull ((1)); -#endif - -#ifdef __USE_ATFILE -/* Similar to `open' but a relative path name is interpreted relative to - the directory for which FD is a descriptor. - - NOTE: some other `openat' implementation support additional functionality - through this interface, especially using the O_XATTR flag. This is not - yet supported here. - - This function is a cancellation point and therefore not marked with - __THROW. */ -# ifndef __USE_FILE_OFFSET64 -extern int openat (int __fd, const char *__file, int __oflag, ...) - __nonnull ((2)); -# else -# ifdef __REDIRECT -extern int __REDIRECT (openat, (int __fd, const char *__file, int __oflag, - ...), openat64) __nonnull ((2)); -# else -# define openat openat64 -# endif -# endif -# ifdef __USE_LARGEFILE64 -extern int openat64 (int __fd, const char *__file, int __oflag, ...) - __nonnull ((2)); -# endif -#endif - -/* Create and open FILE, with mode MODE. This takes an `int' MODE - argument because that is what `mode_t' will be widened to. - - This function is a cancellation point and therefore not marked with - __THROW. */ -#ifndef __USE_FILE_OFFSET64 -extern int creat (const char *__file, mode_t __mode) __nonnull ((1)); -#else -# ifdef __REDIRECT -extern int __REDIRECT (creat, (const char *__file, mode_t __mode), - creat64) __nonnull ((1)); -# else -# define creat creat64 -# endif -#endif -#ifdef __USE_LARGEFILE64 -extern int creat64 (const char *__file, mode_t __mode) __nonnull ((1)); -#endif - -#if !defined F_LOCK && (defined __USE_MISC || (defined __USE_XOPEN_EXTENDED \ - && !defined __USE_POSIX)) -/* NOTE: These declarations also appear in <unistd.h>; be sure to keep both - files consistent. Some systems have them there and some here, and some - software depends on the macros being defined without including both. */ - -/* `lockf' is a simpler interface to the locking facilities of `fcntl'. - LEN is always relative to the current file position. - The CMD argument is one of the following. */ - -# define F_ULOCK 0 /* Unlock a previously locked region. */ -# define F_LOCK 1 /* Lock a region for exclusive use. */ -# define F_TLOCK 2 /* Test and lock a region for exclusive use. */ -# define F_TEST 3 /* Test a region for other processes locks. */ - -# ifndef __USE_FILE_OFFSET64 -extern int lockf (int __fd, int __cmd, off_t __len); -# else -# ifdef __REDIRECT -extern int __REDIRECT (lockf, (int __fd, int __cmd, __off64_t __len), lockf64); -# else -# define lockf lockf64 -# endif -# endif -# ifdef __USE_LARGEFILE64 -extern int lockf64 (int __fd, int __cmd, off64_t __len); -# endif -#endif - -#ifdef __USE_XOPEN2K -/* Advice the system about the expected behaviour of the application with - respect to the file associated with FD. */ -# ifndef __USE_FILE_OFFSET64 -extern int posix_fadvise (int __fd, off_t __offset, off_t __len, - int __advise) __THROW; -# else - # ifdef __REDIRECT_NTH -extern int __REDIRECT_NTH (posix_fadvise, (int __fd, __off64_t __offset, - __off64_t __len, int __advise), - posix_fadvise64); -# else -# define posix_fadvise posix_fadvise64 -# endif -# endif -# ifdef __USE_LARGEFILE64 -extern int posix_fadvise64 (int __fd, off64_t __offset, off64_t __len, - int __advise) __THROW; -# endif - - -/* Reserve storage for the data of the file associated with FD. - - This function is a possible cancellation point and therefore not - marked with __THROW. */ -# ifndef __USE_FILE_OFFSET64 -extern int posix_fallocate (int __fd, off_t __offset, off_t __len); -# else - # ifdef __REDIRECT -extern int __REDIRECT (posix_fallocate, (int __fd, __off64_t __offset, - __off64_t __len), - posix_fallocate64); -# else -# define posix_fallocate posix_fallocate64 -# endif -# endif -# ifdef __USE_LARGEFILE64 -extern int posix_fallocate64 (int __fd, off64_t __offset, off64_t __len); -# endif -#endif - - -/* Define some inlines helping to catch common problems. */ -#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function \ - && defined __va_arg_pack_len -# include <bits/fcntl2.h> -#endif - -__END_DECLS - -#endif /* fcntl.h */ |