From 3087aa4eb6e107f7f39ef3ec57a2cab7c5468633 Mon Sep 17 00:00:00 2001
From: Yachen Mao <maoyachen55@gmail.com>
Date: Sun, 20 Oct 2024 23:54:02 +0800
Subject: [PATCH] handle nextUpHook is nil (#465)

---
 cmd/sshpiperd/daemon.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cmd/sshpiperd/daemon.go b/cmd/sshpiperd/daemon.go
index d1ea0565..e3612c61 100644
--- a/cmd/sshpiperd/daemon.go
+++ b/cmd/sshpiperd/daemon.go
@@ -267,7 +267,10 @@ func (d *daemon) run() error {
 							return nil, nil
 						}
 					}
-					return nextUpHook(b)
+					if nextUpHook != nil {
+						return nextUpHook(b)
+					}
+					return b, nil
 				}
 			}