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Nullability check for stat module

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Bugs: b/245972273
Test: None
Change-Id: I8611c7d7c22e2fb6b0cec4b5101dbcb3174ae706
This commit is contained in:
zijunzhao 2023-02-03 02:28:40 +00:00 committed by Zijun Zhao
parent 475275b3ec
commit 1cda74daba
1 changed files with 58 additions and 19 deletions
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77
libc/include/sys/stat.h
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@ -136,20 +136,20 @@ struct stat64 { __STAT64_BODY };
#define S_TYPEISSHM(__sb) 0
#define S_TYPEISTMO(__sb) 0
int chmod(const char* __path, mode_t __mode);
int chmod(const char* _Nonnull __path, mode_t __mode);
int fchmod(int __fd, mode_t __mode);
int mkdir(const char* __path, mode_t __mode);
int mkdir(const char* _Nonnull __path, mode_t __mode);
int fstat(int __fd, struct stat* __buf);
int fstat64(int __fd, struct stat64* __buf) __RENAME_STAT64(fstat, 3, 21);
int fstatat(int __dir_fd, const char* __path, struct stat* __buf, int __flags);
int fstatat64(int __dir_fd, const char* __path, struct stat64* __buf, int __flags) __RENAME_STAT64(fstatat, 3, 21);
int lstat(const char* __path, struct stat* __buf);
int lstat64(const char* __path, struct stat64* __buf) __RENAME_STAT64(lstat, 3, 21);
int stat(const char* __path, struct stat* __buf);
int stat64(const char* __path, struct stat64* __buf) __RENAME_STAT64(stat, 3, 21);
int fstat(int __fd, struct stat* _Nonnull __buf);
int fstat64(int __fd, struct stat64* _Nonnull __buf) __RENAME_STAT64(fstat, 3, 21);
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) __RENAME_STAT64(fstatat, 3, 21);
int lstat(const char* _Nonnull __path, struct stat* _Nonnull __buf);
int lstat64(const char* _Nonnull __path, struct stat64* _Nonnull __buf) __RENAME_STAT64(lstat, 3, 21);
int stat(const char* _Nonnull __path, struct stat* _Nonnull __buf);
int stat64(const char* _Nonnull __path, struct stat64* _Nonnull __buf) __RENAME_STAT64(stat, 3, 21);
int mknod(const char* __path, mode_t __mode, dev_t __dev);
int mknod(const char* _Nonnull __path, mode_t __mode, dev_t __dev);
mode_t umask(mode_t __mask);
#if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
@ -157,21 +157,58 @@ mode_t umask(mode_t __mask);
#endif
#if __ANDROID_API__ >= 21
int mkfifo(const char* __path, mode_t __mode) __INTRODUCED_IN(21);
int mkfifo(const char* _Nonnull __path, mode_t __mode) __INTRODUCED_IN(21);
#else
// Implemented as a static inline before 21.
#endif
int mkfifoat(int __dir_fd, const char* __path, mode_t __mode) __INTRODUCED_IN(23);
int mkfifoat(int __dir_fd, const char* _Nonnull __path, mode_t __mode) __INTRODUCED_IN(23);
int fchmodat(int __dir_fd, const char* __path, mode_t __mode, int __flags);
int mkdirat(int __dir_fd, const char* __path, mode_t __mode);
int mknodat(int __dir_fd, const char* __path, mode_t __mode, dev_t __dev) __INTRODUCED_IN(21);
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) __INTRODUCED_IN(21);
/**
* 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)
int utimensat(int __dir_fd, const char* __path, const struct timespec __times[2], int __flags);
int futimens(int __dir_fd, const struct timespec __times[2]) __INTRODUCED_IN(19);
/**
* [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.
*
* Available since API level 19.
*/
int futimens(int __fd, const struct timespec __times[_Nullable 2]) __INTRODUCED_IN(19);
#if defined(__USE_GNU)
/**
@ -179,8 +216,10 @@ int futimens(int __dir_fd, const struct timespec __times[2]) __INTRODUCED_IN(19)
* 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* __path, int __flags, unsigned __mask, struct statx* __buf) __INTRODUCED_IN(30);
int statx(int __dir_fd, const char* _Nonnull __path, int __flags, unsigned __mask, struct statx* _Nonnull __buf) __INTRODUCED_IN(30);
#endif
__END_DECLS