Initial commit

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.toml

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+[package]
+name = "echo"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/bin/main.rs

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+use std::net::{TcpListener, TcpStream};
+use std::io::prelude::*;
+
+fn main() {
+    let listener = TcpListener::bind("0.0.0.0:8888").unwrap();
+    for stream in listener.incoming() {
+        let stream = stream.unwrap();
+        handle_connection(stream);
+    }
+}
+
+fn handle_connection(mut stream: TcpStream) {
+    let mut buffer = [0; 1024];
+    let remote_addr = stream.peer_addr().unwrap().ip().to_string();
+
+    stream.read(&mut buffer).unwrap();
+
+    let response = "HTTP/1.1 200 OK\r\n\r\n";
+
+    stream.write(response.as_bytes()).unwrap();
+    stream.write(remote_addr.as_bytes()).unwrap();
+    stream.flush().unwrap();
+}