Function hex_decode

nodedb-cluster/src/auth/join_token.rs:127–138

(s: &str)

}

fn hex_decode(s: &str) -> Result<Vec<u8>, TokenError> {
    let mut out = Vec::with_capacity(s.len() / 2);
    for chunk in s.as_bytes().chunks(2) {
        if chunk.len() != 2 {
            return Err(TokenError::InvalidHex);
        }
        let hi = hex_digit(chunk[0]).ok_or(TokenError::InvalidHex)?;
        let lo = hex_digit(chunk[1]).ok_or(TokenError::InvalidHex)?;
        out.push((hi << 4) | lo);
    }
    Ok(out)
}

fn hex_digit(b: u8) -> Option<u8> {
    match b {