added commandline parse, use structopt

Cargo.toml

@@ -19,6 +19,7 @@ rsa = "0.9.6"
 serde = { version = "1.0.196", features = ["derive"] }
 serde_json = "1.0.113"
 serde_repr = "0.1.18"
+structopt = "0.3.26"
 tokio = { version = "1.36.0", features = ["full"] }
 tracing = "0.1.40"
 tracing-appender = "0.2.3"

src/bin/sdlan-sn/main.rs

@@ -3,11 +3,14 @@ use sdlan_sn_rs::packet;
 use sdlan_sn_rs::utils::Result;
 use tracing::{debug, error};
 
+use std::net::Ipv4Addr;
 //use std::io::Read;
 use std::net::SocketAddr;
 use std::time::Duration;
 use tokio::net::UdpSocket;
 
+use structopt::StructOpt;
+
 mod config;
 mod utils;
 
@@ -36,16 +39,24 @@ async fn client(address: &str) -> Result<()> {
 
 #[tokio::main]
 async fn main() -> Result<()> {
+    // init log
     let _guard = log::init_log();
     debug!("main starts here");
 
     // check license
     license_ok()?;
 
-    let listener = UdpSocket::bind(SERVER).await?;
+    // parse command line argument
+    let args = utils::CommandLine::from_args();
+    debug!("args: {:?}", args);
+    // check the argument
+    let _: Ipv4Addr = args.address.parse().expect("invalid address found");
+
+    let server = format!("{}:{}", args.address, args.port);
+    let listener = UdpSocket::bind(server).await?;
 
     let supernode = utils::SuperNode::new(listener);
-    utils::init_supernode(supernode);
+    utils::init_supernode(supernode).expect("failed to init supernode");
 
     tokio::spawn(async {
         client(SERVER).await.unwrap();

src/bin/sdlan-sn/utils/mod.rs

@@ -3,3 +3,6 @@ pub use sn::*;
 
 mod license;
 pub use license::*;
+
+mod params;
+pub use params::*;

src/bin/sdlan-sn/utils/params.rs

@@ -0,0 +1,12 @@
+use structopt::StructOpt;
+
+#[derive(StructOpt, Debug)]
+pub struct CommandLine {
+    /// fedration, other sn
+    #[structopt(short = "f", long = "fedration", default_value = "")]
+    pub fedration: String,
+    #[structopt(short = "p", long = "port", default_value = "7655")]
+    pub port: u16,
+    #[structopt(short = "a", long = "addr", default_value = "0.0.0.0")]
+    pub address: String,
+}