Creating a Unix socket

Let’s go through a step-by-step example in Go for creating a UNIX socket server and client. After that, we’ll understand how to use lsof to inspect the socket:

1. For socket path and cleanup, perform the following:

   socketPath := "/tmp/example.sock"
   if err := os.Remove(socketPath); err != nil && !os.IsNotExist(err) {
       log.Printf("Error removing socket file: %v", err)
       return
   }

   • Path definition: socketPath := "/tmp/example.sock" sets the location for the UNIX socket
   • Cleanup logic: os.Remove(socketPath) attempts to delete any existing socket file at this location to avoid conflicts when starting the server
2. For creating and listening on the UNIX socket:

   listener, err := net.Listen("unix", socketPath)
   if err != nil {
       log.Printf("Error listening: %v", err)
       return
   }
   defer listener.Close()
   fmt.Println...