FSTATAT(2)                 Linux Programmer's Manual                FSTATAT(2)
       fstatat - get file status relative to a directory file descriptor

       #include <sys/stat.h>

       int fstatat(int dirfd, const char *path, 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 path is relative, then it is interpreted rela-
       tive  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  the  pathname  given  in  path is relative and dirfd is the special
       value AT_FDCWD, then path is interpreted relative to the current  work-
       ing directory of the calling process (like stat(2)).

       If the pathname given in path is absolute, then dirfd is ignored.

       flags can either be 0, or include the following flag:

              If  path  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.

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

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

       This system call is non-standard but is proposed  for  inclusion  in  a
       future revision of POSIX.1.  A similar system call exists on Solaris.

       fstatat() was added to Linux in kernel 2.6.16.

       openat(2), path_resolution(2), stat(2)

Linux 2.6.16                      2006-04-30                        FSTATAT(2)