From 5d1981bf23031b6baf2314402dbbe490b285d61c Mon Sep 17 00:00:00 2001
From: Benton60 <benton.programming@gmail.com>
Date: Mon, 6 Apr 2026 12:50:21 -0400
Subject: [PATCH] fix failing os-test by correcting disconnect behavior

---
 netstack/src/scheme/udp.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/netstack/src/scheme/udp.rs b/netstack/src/scheme/udp.rs
index 2fe0cc9461..449ba80445 100644
--- a/netstack/src/scheme/udp.rs
+++ b/netstack/src/scheme/udp.rs
@@ -235,6 +235,17 @@ impl<'a> SchemeSocket for UdpSocket<'a> {
                 // there's no accept() for UDP
                 return Err(SyscallError::new(syscall::EAFNOSUPPORT));
             }
+            "disconnect" => {
+                let remote_endpoint = IpListenEndpoint {
+                    addr: None,
+                    port: 0,
+                };
+                if let SchemeFile::Socket(ref udp_handle) = *file {
+                    SchemeFile::Socket(udp_handle.clone_with_data(remote_endpoint))
+                } else {
+                    SchemeFile::Socket(SocketFile::new_with_data(socket_handle, remote_endpoint))
+                }
+            }
             _ => {
                 let remote_endpoint = parse_endpoint(path);
                 if let SchemeFile::Socket(ref udp_handle) = *file {