internal static global::System.Runtime.InteropServices.HandleRef getCPtr(TlsInfo obj)
{
return((obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr);
}
static async Task Main(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine("No host names specified!");
}
foreach (var hostName in args)
{
Console.WriteLine();
WriteLineWithColour(GetHeader(hostName), ConsoleColor.DarkGreen);
Console.WriteLine();
try {
string host;
var port = DefaultPortNumber;
var m = s_hostNameWithPort.Match(hostName);
if (m.Success)
{
host = m.Groups["host"].Value;
port = int.Parse(m.Groups["port"].Value);
}
else
{
host = hostName;
}
string resolvedHostNameOrIp;
if (IPAddress.TryParse(host, out var ip))
{
resolvedHostNameOrIp = ip.ToString();
}
else if (string.Equals(host, Localhost, StringComparison.OrdinalIgnoreCase))
{
resolvedHostNameOrIp = Localhost;
}
else
{
var dnsEntry = await Dns.GetHostEntryAsync(host).ConfigureAwait(false);
resolvedHostNameOrIp = dnsEntry.HostName;
}
Console.WriteLine($"Resolved Host Name: {resolvedHostNameOrIp}");
using (var tcpClient = new TcpClient(resolvedHostNameOrIp, port))
using (var sslStream = new SslStream(tcpClient.GetStream(), false, ValidateServerCertificate, null)) {
await sslStream.AuthenticateAsClientAsync(
resolvedHostNameOrIp,
null,
SslProtocols.Tls12,
true
).ConfigureAwait(false);
var tlsInfo = new TlsInfo(sslStream);
Console.WriteLine($"TLS Version: {tlsInfo.ProtocolVersion}");
Console.WriteLine($"Key Exchange Algorithm: {tlsInfo.KeyExchangeAlgorithm}");
Console.WriteLine($"Cipher Algorithm: {tlsInfo.CipherAlgorithm}");
Console.WriteLine($"Hash Algorithm: {tlsInfo.HashAlgorithm}");
Console.WriteLine("Certificate:");
Console.WriteLine();
Console.WriteLine(tlsInfo.RemoteCertificate.ToString(false));
}
}
catch (Exception e) {
WriteLineWithColour(e.ToString(), ConsoleColor.DarkRed);
Console.WriteLine();
}
}
}
