listen on a socket

app.go

@@ -1,7 +1,39 @@
 package main
 
-import "fmt"
+import (
+	"log"
+	"net"
+)
 
 func main() {
-	fmt.Println(socketPath)
+	l, err := net.Listen("unix", socketPath)
+	if err != nil {
+		log.Fatal("listen error:", err)
+	}
+
+	for {
+		fd, err := l.Accept()
+		if err != nil {
+			log.Fatal("accept error:", err)
+		}
+
+		go echoServer(fd)
+	}
+}
+
+func echoServer(c net.Conn) {
+	for {
+		buf := make([]byte, 512)
+		nr, err := c.Read(buf)
+		if err != nil {
+			return
+		}
+
+		data := buf[0:nr]
+		println("Server got:", string(data))
+		_, err = c.Write(data)
+		if err != nil {
+			log.Fatal("Write: ", err)
+		}
+	}
 }