use std::{
    io::{self, Read as _, Write as _},
    net::{Shutdown, TcpStream},
};
fn main() -> io::Result<()> {
    let mut stream = TcpStream::connect("baidu.com:80")?;
    const REQUEST: &[u8] = b"GET http://baidu.com/ HTTP/1.1\r\n\
        Host: baidu.com\r\n\
        \r\n";
    stream.write_all(REQUEST)?;
    // Signal that we have done writing.
    stream.shutdown(Shutdown::Write)?;
    println!("Sent {} bytes", REQUEST.len());
    let mut buf = vec![];
    stream.read_to_end(&mut buf)?;
    println!("Received {} bytes", buf.len());
    println!("{}", String::from_utf8_lossy(&buf));
    Ok(())
}

use tokio::{
    io::{self, AsyncReadExt as _, AsyncWriteExt as _},
    net::TcpStream,
};
#[tokio::main]
async fn main() -> io::Result<()> {
    let mut stream = TcpStream::connect("baidu.com:80").await?;
    const REQUEST: &[u8] = b"GET http://baidu.com/ HTTP/1.1\r\n\
        Host: baidu.com\r\n\
        \r\n";
    stream.write_all(REQUEST).await?;
    // Signal that we have done writing.
    stream.shutdown().await?;
    println!("Sent {} bytes", REQUEST.len());
    let mut buf = vec![];
    stream.read_to_end(&mut buf).await?;
    println!("Received {} bytes", buf.len());
    println!("{}", String::from_utf8_lossy(&buf));
    Ok(())
}

console = "0.15.10"

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