1 files changed, 83 insertions, 0 deletions
diff --git a/runsc/container/uds_test_app.go b/runsc/container/uds_test_app.go
new file mode 100644
index 000000000..bef98ac66
--- /dev/null
+++ b/runsc/container/uds_test_app.go
@@ -0,0 +1,83 @@
+// Copyright 2018 Google Inc.
+//
+// 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.
+
+// Binary uds-test-app opens a socket and reads a series of numbers
+// which are then written to an output file.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net"
+	"os"
+	"strconv"
+	"time"
+)
+
+var (
+	fileName   = flag.String("file", "", "name of output file")
+	socketPath = flag.String("socket", "", "path to socket")
+)
+
+func server(listener net.Listener, f *os.File) {
+	buf := make([]byte, 16)
+
+	for {
+		c, err := listener.Accept()
+		if err != nil {
+			log.Fatal("error accepting connection:", err)
+		}
+		nr, err := c.Read(buf)
+		if err != nil {
+			log.Fatal("error reading from buf:", err)
+		}
+		data := buf[0:nr]
+		fmt.Fprintf(f, string(data)+"\n")
+	}
+}
+
+func main() {
+	flag.Parse()
+	if *fileName == "" || *socketPath == "" {
+		log.Fatalf("Flags cannot be empty, given: fileName=%s, socketPath=%s", *fileName, *socketPath)
+	}
+	outputFile, err := os.OpenFile(*fileName, os.O_WRONLY|os.O_CREATE, 0666)
+	if err != nil {
+		log.Fatal("error opening output file:", err)
+	}
+
+	socket := *socketPath
+	defer os.Remove(socket)
+
+	listener, err := net.Listen("unix", socket)
+	if err != nil {
+		log.Fatal("error listening on socket:", err)
+	}
+
+	go server(listener, outputFile)
+	for i := 0; ; i++ {
+
+		conn, err := net.Dial("unix", socket)
+		if err != nil {
+			log.Fatal("error dialing:", err)
+		}
+		if _, err := conn.Write([]byte(strconv.Itoa(i))); err != nil {
+			log.Fatal("error writing:", err)
+		}
+		conn.Close()
+		time.Sleep(100 * time.Millisecond)
+	}
+
+}