turn 0.17.1

A pure Rust implementation of TURN
Documentation 
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#[cfg(test)]
mod dontfrag_test;

use stun::attributes::*;
use stun::message::*;

/// `DontFragmentAttr` represents `DONT-FRAGMENT` attribute.
#[derive(Debug, Default, PartialEq, Eq)]
pub struct DontFragmentAttr;

impl Setter for DontFragmentAttr {
    /// Adds `DONT-FRAGMENT` attribute to message.
    fn add_to(&self, m: &mut Message) -> Result<(), stun::Error> {
        m.add(ATTR_DONT_FRAGMENT, &[]);
        Ok(())
    }
}

impl Getter for DontFragmentAttr {
    /// Returns true if `DONT-FRAGMENT` attribute is set.
    fn get_from(&mut self, m: &Message) -> Result<(), stun::Error> {
        let _ = m.get(ATTR_DONT_FRAGMENT)?;
        Ok(())
    }
}