// and wait for our os.Stderr (and os.Stdout) to close as a result.
	// However, if the os.Stderr (or os.Stdout) file descriptors are
	// passed on, the hanging adb subprocess will hold them open and
	// go test will hang forever.
	//
	// Avoid that by wrapping stderr, breaking the short circuit and
	// forcing cmd.Run to use another pipe and goroutine to pass
	// along stderr from adb.

	fmt.Fprintf(w, "reads addresses from standard input and writes two lines for each:\n")
	fmt.Fprintf(w, "\tfunction name\n")
	fmt.Fprintf(w, "\tfile:line\n")
}

func usage() {
	printUsage(os.Stderr)
	os.Exit(2)
}

func main() {
	log.SetFlags(0)
	log.SetPrefix("addr2line: ")

	// pprof expects this behavior when checking for addr2line
	if len(os.Args) > 1 && os.Args[1] == "--help" {

	default:
		fatal("unknown test %q", os.Args[1])
	case "Call":
		testCall()
	case "Callback":
		testCallback()
	}
	println("OK")
}

func fatal(f string, args ...any) {
	fmt.Fprintln(os.Stderr, fmt.Sprintf(f, args...))
	os.Exit(1)
}

type GoCallback struct{}

func (p *GoCallback) Run() string {
	return "GoCallback.Run"
}

func testCall() {
	c := NewCaller()
	cb := NewCallback()

	_ "k8s.io/client-go/plugin/pkg/client/auth"

	"istio.io/istio/istioctl/cmd"
	"istio.io/istio/pkg/log"
)

func main() {
	if err := cmd.ConfigAndEnvProcessing(); err != nil {
		fmt.Fprintf(os.Stderr, "Could not initialize: %v\n", err)
		exitCode := cmd.GetExitCode(err)
		os.Exit(exitCode)
	}

	rootCmd := cmd.GetRootCmd(os.Args[1:])

	log.EnableKlogWithCobra()

	if err := rootCmd.Execute(); err != nil {

		log.Fatalln(err)
	}

	tclnt, err := buildS3Client(targetEndpoint, targetAccessKey, targetSecretKey, insecure)
	if err != nil {
		log.Fatalln(err)
	}

	if debug {
		sclnt.TraceOn(os.Stderr)
		tclnt.TraceOn(os.Stderr)
	}

	sopts := minio.ListObjectsOptions{
		Recursive: true,
		Prefix:    sourcePrefix,
	}

	topts := minio.ListObjectsOptions{
		Recursive: true,
		Prefix:    targetPrefix,

		Creds:     credentials.NewStaticV4(accessKey, secretKey, ""),
		Secure:    secure,
		Transport: transport,
	})
	if err != nil {
		log.Fatalln(err)
	}

	if debug {
		s3Client.TraceOn(os.Stderr)
	}

	var buckets []string
	if bucket != "" {
		buckets = append(buckets, bucket)
	} else {
		bucketsInfo, err := s3Client.ListBuckets(context.Background())
		if err != nil {
			log.Fatalln(err)

		fatal("read unexpected characters")
	}
	if Fclose(f) != 0 {
		fatal("fclose failed")
	}

	println("OK")
}

func fatal(f string, args ...any) {
	fmt.Fprintln(os.Stderr, fmt.Sprintf(f, args...))
	os.Exit(1)