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FSTATAT(2)                 Linux Programmer's Manual                FSTATAT(2)

       fstatat - get file status relative to a directory file descriptor

       #define _ATFILE_SOURCE
       #include <fcntl.h> /* Definition of AT_* constants */
       #include <sys/stat.h>

       int fstatat(int dirfd, const char *pathname, struct stat *buf,
                   int flags);

       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:

              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).)

       On success, fstatat() returns 0.  On error, -1 is returned and errno is set to indicate the error.

       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.

              pathname is relative and dirfd is a file descriptor referring to a file other than a directory.

       fstatat() was added to Linux in kernel 2.6.16.

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

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

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

       This  page  is part of release 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at

Linux                             2008-08-21                        FSTATAT(2)