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fstatat

man page of fstatat

fstatat: get file status relative to a directory file descriptor

NAME

fstatat - get file status relative to a directory file descriptor

SYNOPSIS

#include <fcntl.h> /* Definition of AT_* constants */ #include <sys/stat.h> int fstatat(int dirfd, const char *pathname, struct stat *buf, int flags); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): fstatat(): Since glibc 2.10: _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _ATFILE_SOURCE

DESCRIPTION

The fstatat() system call operates in exactly the same way as stat(2), except for the differences described in this manual page. If the pathname given in pathname is relative, then it is interpreted relative to the directory referred to by the file descriptor dirfd (rather than relative to the current working directory of the calling process, as is done by stat(2) for a relative pathname). If pathname is relative and dirfd is the special value AT_FDCWD, then pathname is interpreted relative to the current working directory of the calling process (like stat(2)). If pathname is absolute, then dirfd is ignored. flags can either be 0, or include the following flag: AT_SYMLINK_NOFOLLOW If pathname is a symbolic link, do not dereference it: instead return information about the link itself, like lstat(2). (By default, fstatat() dereferences symbolic links, like stat(2).)

RETURN VALUE

On success, fstatat() returns 0. On error, -1 is returned and errno is set to indicate the error.
ERRORS
The same errors that occur for stat(2) can also occur for fstatat(). The following additional errors can occur for fstatat(): EBADF dirfd is not a valid file descriptor. EINVAL Invalid flag specified in flags. ENOTDIR pathname is relative and dirfd is a file descriptor referring to a file other than a directory.
VERSIONS
fstatat() was added to Linux in kernel 2.6.16.

CONFORMING TO

POSIX.1-2008. A similar system call exists on Solaris.

NOTES

See openat(2) for an explanation of the need for fstatat().

SEE ALSO

openat(2), stat(2), path_resolution(7), symlink(7)

COLOPHON

This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at //www.kernel.org/doc/man-pages/. FSTATAT(2)
 
 
 

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