feat: add client

src/bin/client.rs

@@ -0,0 +1,35 @@
+use std::net::TcpStream;
+use std::io::{Error, BufReader, BufWriter, Write, stdout, BufRead};
+
+fn main() {
+    let stream = TcpStream::connect("127.0.0.1:33333");
+    match stream {
+        Ok(s) => {
+            handler(s).unwrap_or_else(|error| eprintln!("{:?}", error));
+        }
+        Err(e) =>  {eprintln!("error: {}", e)}
+    }
+}
+
+fn handler(stream: TcpStream) -> Result<(), Error> {
+    loop {
+        let mut input = String::new();
+        print!(">> ");
+        stdout().flush()?;
+
+        std::io::stdin().read_line(&mut input)?;
+
+        let mut writer = BufWriter::new(&stream);
+        writer.write(input.as_bytes())?;
+        writer.flush()?;
+        let mut reader = BufReader::new(&stream);
+        let mut return_value = String::new();
+        let nbytes = reader.read_line(&mut return_value)?;
+        if nbytes == 0 {
+            println!("receive EOF");
+            break
+        }
+        print!("{}", return_value);
+    }
+    return Ok(())
+}