diff --git a/src/lib.rs b/src/lib.rs
index 57dbd1f77a97e7295fd0081a01f7889dfa508883..5e0cd7045e359c94fdd619cb866753e1c649314d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,5 @@
+// Copyright (C) 2022-2022 Agilor Co.,Ltd.   All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
 #![cfg_attr(feature = "alloc", no_std, feature(prelude_import))]
 #![feature(once_cell)]
 #[allow(unused_imports)]
@@ -25,3 +27,4 @@ mod reactor;
 
 pub use drive_s::{block_on, spawn};
 pub use net::*;
+
diff --git a/src/net/mod.rs b/src/net/mod.rs
index 6f3cd7a3b9f0d50e8f742f23c0323e34f34c18c0..b6df8a901142c40fcb00a16b1ddd21d950cb8675 100644
--- a/src/net/mod.rs
+++ b/src/net/mod.rs
@@ -1,4 +1,7 @@
+// Copyright (C) 2022-2022 Agilor Co.,Ltd.   All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
 #[allow(dead_code)]
 #[allow(dead_code)]
 mod sys;
 pub use sys::*;
+
diff --git a/src/net/sys/mod.rs b/src/net/sys/mod.rs
index d1cce2d59fd153921eeff2a172d4702104f3cdbf..25923ca73d5e3aa92ffedef57eb9055c8996d652 100644
--- a/src/net/sys/mod.rs
+++ b/src/net/sys/mod.rs
@@ -1,3 +1,6 @@
+// Copyright (C) 2022-2022 Agilor Co.,Ltd.   All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
 mod unix;
 
 pub use unix::*;
+
diff --git a/src/net/sys/unix/socket.rs b/src/net/sys/unix/socket.rs
index 3e8c202d5c8b009f362ba1ffc3aecd5d6d584c7f..476cb5bcc1a201c74e61a9a364f65d2c6962398a 100644
--- a/src/net/sys/unix/socket.rs
+++ b/src/net/sys/unix/socket.rs
@@ -30,6 +30,11 @@ pub enum Shutdown {
 }
 impl Socket {
     pub const ADDR_SIZE: u32 = size_of::<libc::sockaddr_in>() as u32;
+
+    pub fn get_fd(&self) -> i32 {
+        self.inner.fd
+    }
+
     fn get_pool() -> &'static ObjPool<SocketInner> {
         static P: ObjPool<SocketInner> = ObjPool::new();
         &P
diff --git a/src/reactor.rs b/src/reactor.rs
index 51a0b7efabc1971b99260b2a95fceadd05dbb3e5..58d9e4f07a6b483b6db3e068407f08354b487c08 100644
--- a/src/reactor.rs
+++ b/src/reactor.rs
@@ -1,3 +1,5 @@
+// Copyright (C) 2022-2022 Agilor Co.,Ltd.   All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
 use core::{mem::MaybeUninit, task::Waker};
 use stdlib::{io::Result, lazy::SyncLazy};
 
@@ -31,3 +33,4 @@ impl Reactor {
         Ok(())
     }
 }
+