/* * Copyright (C) 2008 The Android Open Source Project * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #pragma once /** * @file sys/stat.h * @brief File status. */ #include #include #include #include __BEGIN_DECLS #if defined(__aarch64__) || defined(__riscv) #define __STAT64_BODY \ dev_t st_dev; \ ino_t st_ino; \ mode_t st_mode; \ nlink_t st_nlink; \ uid_t st_uid; \ gid_t st_gid; \ dev_t st_rdev; \ unsigned long __pad1; \ off_t st_size; \ int st_blksize; \ int __pad2; \ long st_blocks; \ struct timespec st_atim; \ struct timespec st_mtim; \ struct timespec st_ctim; \ unsigned int __unused4; \ unsigned int __unused5; \ #elif defined(__x86_64__) #define __STAT64_BODY \ dev_t st_dev; \ ino_t st_ino; \ unsigned long st_nlink; \ mode_t st_mode; \ uid_t st_uid; \ gid_t st_gid; \ unsigned int __pad0; \ dev_t st_rdev; \ off_t st_size; \ long st_blksize; \ long st_blocks; \ struct timespec st_atim; \ struct timespec st_mtim; \ struct timespec st_ctim; \ long __pad3[3]; \ #else /* __arm__ || __i386__ */ #define __STAT64_BODY \ unsigned long long st_dev; \ unsigned char __pad0[4]; \ unsigned long __st_ino; \ unsigned int st_mode; \ nlink_t st_nlink; \ uid_t st_uid; \ gid_t st_gid; \ unsigned long long st_rdev; \ unsigned char __pad3[4]; \ long long st_size; \ unsigned long st_blksize; \ unsigned long long st_blocks; \ struct timespec st_atim; \ struct timespec st_mtim; \ struct timespec st_ctim; \ unsigned long long st_ino; \ #endif struct stat { __STAT64_BODY }; struct stat64 { __STAT64_BODY }; #undef __STAT64_BODY /* Compatibility with older versions of POSIX. */ #define st_atime st_atim.tv_sec #define st_mtime st_mtim.tv_sec #define st_ctime st_ctim.tv_sec /* Compatibility with glibc. */ #define st_atimensec st_atim.tv_nsec #define st_mtimensec st_mtim.tv_nsec #define st_ctimensec st_ctim.tv_nsec /* Compatibility with Linux headers and old NDKs. */ #define st_atime_nsec st_atim.tv_nsec #define st_mtime_nsec st_mtim.tv_nsec #define st_ctime_nsec st_ctim.tv_nsec #if defined(__USE_BSD) /* Permission macros provided by glibc for compatibility with BSDs. */ #define ACCESSPERMS (S_IRWXU | S_IRWXG | S_IRWXO) /* 0777 */ #define ALLPERMS (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO) /* 07777 */ #define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) /* 0666 */ #endif #if defined(__USE_BSD) || defined(__USE_GNU) #define S_IREAD S_IRUSR #define S_IWRITE S_IWUSR #define S_IEXEC S_IXUSR #endif /* POSIX mandates these, but Linux doesn't implement them as distinct file types. */ #define S_TYPEISMQ(__sb) 0 #define S_TYPEISSEM(__sb) 0 #define S_TYPEISSHM(__sb) 0 #define S_TYPEISTMO(__sb) 0 int chmod(const char* _Nonnull __path, mode_t __mode); int fchmod(int __fd, mode_t __mode); int mkdir(const char* _Nonnull __path, mode_t __mode); int fstat(int __fd, struct stat* _Nonnull __buf); int fstat64(int __fd, struct stat64* _Nonnull __buf); int fstatat(int __dir_fd, const char* _Nonnull __path, struct stat* _Nonnull __buf, int __flags); int fstatat64(int __dir_fd, const char* _Nonnull __path, struct stat64* _Nonnull __buf, int __flags); int lstat(const char* _Nonnull __path, struct stat* _Nonnull __buf); int lstat64(const char* _Nonnull __path, struct stat64* _Nonnull __buf); int stat(const char* _Nonnull __path, struct stat* _Nonnull __buf); int stat64(const char* _Nonnull __path, struct stat64* _Nonnull __buf); int mknod(const char* _Nonnull __path, mode_t __mode, dev_t __dev); mode_t umask(mode_t __mask); #if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS) #include #endif int mkfifo(const char* _Nonnull __path, mode_t __mode); int mkfifoat(int __dir_fd, const char* _Nonnull __path, mode_t __mode) __INTRODUCED_IN(23); int fchmodat(int __dir_fd, const char* _Nonnull __path, mode_t __mode, int __flags); int mkdirat(int __dir_fd, const char* _Nonnull __path, mode_t __mode); int mknodat(int __dir_fd, const char* _Nonnull __path, mode_t __mode, dev_t __dev); /** * Used in the tv_nsec field of an argument to utimensat()/futimens() * to set that time to the current time. */ #define UTIME_NOW ((1L << 30) - 1L) /** * Used in the tv_nsec field of an argument to utimensat()/futimens() * to _not_ set that time. */ #define UTIME_OMIT ((1L << 30) - 2L) /** * [utimensat(2)](https://man7.org/linux/man-pages/man2/utimensat.2.html) sets * file timestamps. * * Note: Linux supports `__path` being NULL (in which case `__dir_fd` need not * be a directory), allowing futimens() to be implemented with utimensat(). * For normal use of utimensat(), though, `__path` should be non-null. * * `__times[0]` is the access time (atime), and `__times[1]` the last modification time (mtime). * If `__times` is NULL, both times are set to the current time. * See also UTIME_NOW and UTIME_OMIT. * * Returns 0 on success and returns -1 and sets `errno` on failure. */ int utimensat(int __dir_fd, const char* __BIONIC_COMPLICATED_NULLNESS __path, const struct timespec __times[_Nullable 2], int __flags); /** * [futimens(2)](https://man7.org/linux/man-pages/man2/utimensat.2.html) sets * the given file descriptor's timestamp. * * `__times[0]` is the access time (atime), and `__times[1]` the last modification time (mtime). * If `__times` is NULL, both times are set to the current time. * See also UTIME_NOW and UTIME_OMIT. * * Returns 0 on success and returns -1 and sets `errno` on failure. */ int futimens(int __fd, const struct timespec __times[_Nullable 2]); #if defined(__USE_GNU) /** * [statx(2)](http://man7.org/linux/man-pages/man2/statx.2.html) returns * extended file status information. * * Returns 0 on success and returns -1 and sets `errno` on failure. * * Available since API level 30. */ int statx(int __dir_fd, const char* _Nonnull __path, int __flags, unsigned __mask, struct statx* _Nonnull __buf) __INTRODUCED_IN(30); #endif __END_DECLS