Function nix::unistd::fchown

pub fn fchown(fd: RawFd, owner: Option<Uid>, group: Option<Gid>) -> Result<()>

Available on crate features user and fs only.

Change the ownership of the file referred to by the open file descriptor fd to be owned by the specified owner (user) and group (see fchown(2)).

The owner/group for the provided file will not be modified if None is provided for that argument. Ownership change will be attempted for the path only if Some owner/group is provided.