protocol

type Adapter interface {
	// Name is the --protocol value, e.g. "smtp".
	Name() string
	// STARTTLS reports whether a plaintext negotiation precedes TLS.
	STARTTLS() bool
	// Upgrade negotiates TLS on s. On return the next bytes written must be
	// the ClientHello. Direct-TLS adapters do nothing.
	Upgrade(ctx context.Context, s *Session, host string) error
}

type Detection struct {
	Protocol string `json:"protocol"`
	Method   string `json:"method"`      // direct or starttls
	Via      string `json:"detected_by"` // flag, port, banner, default
	Banner   string `json:"banner,omitempty"`
}

type Session struct {
	Conn net.Conn

	Log []string
	// contains filtered or unexported fields
}