pub fn faccessat<P: ?Sized + NixPath>(
    dirfd: Option<RawFd>,
    path: &P,
    mode: AccessFlags,
    flags: AtFlags
) -> Result<()>Expand description
Checks the file named by path for accessibility according to the flags given by mode
If dirfd has a value, then path is relative to directory associated with the file descriptor.
If dirfd is None, then path is relative to the current working directory.