// (c) 2020-2022 ZeroTier, Inc. -- currently propritery pending actual release and licensing. See LICENSE.md.

// from zeronsd
pub fn randstring(len: u8) -> String {
    (0..len)
        .map(|_| (rand::random::<u8>() % 26) + 'a' as u8)
        .map(|c| {
            if rand::random::<bool>() {
                (c as char).to_ascii_uppercase()
            } else {
                c as char
            }
        })
        .map(|c| c.to_string())
        .collect::<Vec<String>>()
        .join("")
}