func ethrLookupIP()

in utils.go [411:437]

• 25 lines of code
• 9 McCabe index (conditional complexity)

func ethrLookupIP(server string) (net.IPAddr, string, error) {
	var ipAddr net.IPAddr
	var ipStr string

	ip := net.ParseIP(server)
	if ip != nil {
		ipAddr.IP = ip
		ipStr = server
		return ipAddr, ipStr, nil
	}

	ips, err := net.LookupIP(server)
	if err != nil {
		ui.printErr("Failed to lookup IP address for the server: %v. Error: %v", server, err)
		return ipAddr, ipStr, err
	}
	for _, ip := range ips {
		if gIPVersion == ethrIPAny || (gIPVersion == ethrIPv4 && ip.To4() != nil) || (gIPVersion == ethrIPv6 && ip.To16() != nil) {
			ipAddr.IP = ip
			ipStr = ip.String()
			ui.printDbg("Resolved server: %v to IP address: %v\n", server, ip)
			return ipAddr, ipStr, nil
		}
	}
	ui.printErr("Unable to resolve the given server: %v to an IP address.", server)
	return ipAddr, ipStr, os.ErrNotExist
}