From 236899069c6f7d7bd857b9deac1197143ec99862 Mon Sep 17 00:00:00 2001
From: Kazuyoshi Kato <katokazu@amazon.com>
Date: Fri, 21 May 2021 17:12:43 -0700
Subject: [PATCH] Make the example command buildable on macOS

Signed-off-by: Kazuyoshi Kato <katokazu@amazon.com>
---
 example/cmd/handshaker_linux.go | 23 +++++++++++++++++++++++
 example/cmd/handshaker_other.go | 25 +++++++++++++++++++++++++
 example/cmd/main.go             |  2 +-
 3 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 example/cmd/handshaker_linux.go
 create mode 100644 example/cmd/handshaker_other.go

diff --git a/example/cmd/handshaker_linux.go b/example/cmd/handshaker_linux.go
new file mode 100644
index 000000000..67b415f4a
--- /dev/null
+++ b/example/cmd/handshaker_linux.go
@@ -0,0 +1,23 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package main
+
+import ttrpc "github.com/containerd/ttrpc"
+
+func defaultHandshaker() ttrpc.Handshaker {
+	return ttrpc.UnixSocketRequireSameUser()
+}
diff --git a/example/cmd/handshaker_other.go b/example/cmd/handshaker_other.go
new file mode 100644
index 000000000..5ea1a90ea
--- /dev/null
+++ b/example/cmd/handshaker_other.go
@@ -0,0 +1,25 @@
+// +build !linux
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package main
+
+import ttrpc "github.com/containerd/ttrpc"
+
+func defaultHandshaker() ttrpc.Handshaker {
+	return nil
+}
diff --git a/example/cmd/main.go b/example/cmd/main.go
index f1f43ab70..da924ebd3 100644
--- a/example/cmd/main.go
+++ b/example/cmd/main.go
@@ -73,7 +73,7 @@ func dumpMetadata(ctx context.Context) {
 
 func server() error {
 	s, err := ttrpc.NewServer(
-		ttrpc.WithServerHandshaker(ttrpc.UnixSocketRequireSameUser()),
+		ttrpc.WithServerHandshaker(defaultHandshaker()),
 		ttrpc.WithUnaryServerInterceptor(serverIntercept),
 	)
 	if err != nil {