std-embedded-nal 0.0.3

Implementation of the `embedded-nal` traits for large devices that support the standard library
Documentation 
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/// A brutally oversimplified CoAP client that GETs /.well-known/core from localhost:5683
use embedded_nal::nb::block;
use embedded_nal::{Dns, UdpClient};

fn run<S, E>(stack: &S) -> Result<(), E>
where
    E: core::fmt::Debug, // Might go away when MSRV goes up to 1.49, see https://github.com/rust-lang/rust/issues/80821
    S: UdpClient<Error = E> + Dns<Error = E>,
{
    let target = embedded_nal::SocketAddr::new(
        stack.gethostbyname("localhost", embedded_nal::AddrType::IPv6)?,
        5683,
    );

    let mut sock = stack.socket()?;
    stack.connect(&mut sock, target)?;
    // Data, V1 NON no token, GET, message ID 0x0000, 2x Uri-Path
    block!(stack.send(&mut sock, b"\x50\x01\0\0\xbb.well-known\x04core"))?;

    let mut respbuf = [0; 1500];
    let (resplen, _) = block!(stack.receive(&mut sock, &mut respbuf))?;
    let response = &respbuf[..resplen];

    println!("Response: {}", String::from_utf8_lossy(response));

    Ok(())
}

fn main() {
    let stack = &std_embedded_nal::STACK;

    run(stack).expect("Error running the main program")
}