Squashed code beautifications

commit d5fdf845bf
Author: ssrlive <[email protected]>
Date:   Thu Mar 23 23:21:22 2023 +0800

    Update tun2proxy.rs

commit 2540daa423
Author: ssrlive <[email protected]>
Date:   Thu Mar 23 22:40:26 2023 +0800

    Update main.rs

commit 9ef5efb864
Author: ssrlive <[email protected]>
Date:   Thu Mar 23 22:19:06 2023 +0800

    Update main.rs

commit 017ea1a17a
Author: ssrlive <[email protected]>
Date:   Thu Mar 23 22:15:00 2023 +0800

    Update main.rs

src/main.rs

@@ -13,10 +13,11 @@ struct Args {
     tun: String,
 
     /// The proxy URL in the form proto://[username[:password]@]host:port
-    #[arg(short, long = "proxy", value_parser = Proxy::from_url, value_name = "URL")]
+    #[arg(short, long, value_parser = Proxy::from_url, value_name = "URL")]
     proxy: Proxy,
 
-    #[arg(short, long = "dns")]
+    /// Enable virtual DNS feature
+    #[arg(short = 'd', long = "dns")]
     virtual_dns: bool,
 }
 

src/tun2proxy.rs

@@ -48,15 +48,13 @@ pub(crate) struct Destination {
 impl TryFrom<Destination> for SocketAddr {
     type Error = Error;
     fn try_from(value: Destination) -> Result<Self, Self::Error> {
-        Ok(SocketAddr::new(
-            match value.host {
-                DestinationHost::Address(addr) => addr,
-                Hostname(e) => {
-                    return Err(e.into());
-                }
-            },
-            value.port,
-        ))
+        let ip = match value.host {
+            DestinationHost::Address(addr) => addr,
+            Hostname(e) => {
+                return Err(e.into());
+            }
+        };
+        Ok(SocketAddr::new(ip, value.port))
     }
 }