// numbers for platforms that don't have a complete list of port numbers.
//
// See https://www.iana.org/assignments/service-names-port-numbers
//
// On Unix, this map is augmented by readServices via goLookupPort.
var services = map[string]map[string]int{
	"udp": {
		"domain": 53,
	},
	"tcp": {
		"ftp":         21,
		"ftps":        990,
		"gopher":      70, // ʕ◔ϖ◔ʔ
		"http":        80,
		"https":       443,