}
	if parts[3] == "*" {
		return -1, nil
	}
	var usz uint64
	usz, err = strconv.ParseUint(parts[3], 10, 64)
	if err != nil {
		return sz, err
	}
	return int64(usz), nil
}

func extractReplicateDiffOpts(q url.Values) (opts madmin.ReplDiffOpts) {
	opts.Verbose = q.Get("verbose") == "true"
	opts.ARN = q.Get("arn")
	opts.Prefix = q.Get("prefix")
	return opts
}

const (

	}

	// Check if bucket exists.
	if _, err := objectAPI.GetBucketInfo(ctx, bucket, BucketOptions{}); err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}
	opts := extractReplicateDiffOpts(r.Form)
	if opts.ARN != "" {
		tgt := globalBucketTargetSys.GetRemoteBucketTargetByArn(ctx, bucket, opts.ARN)
		if tgt.Empty() {