Function nix::fcntl::openat

pub fn openat<P: ?Sized + NixPath, Fd: AsFd>(
    dirfd: Fd,
    path: &P,
    oflag: OFlag,
    mode: Mode,
) -> Result<OwnedFd>

open or create a file for reading, writing or executing

The openat function is equivalent to the open function except in the case where the path specifies a relative path. In that case, the file to be opened is determined relative to the directory associated with the file descriptor dirfd.

See Also

openat