/// <summary>
/// Creates a socket and connects it to the specified port on
/// the specified host. </summary>
/// <param name="host"> the specified host </param>
/// <param name="port"> the specified port </param>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: protected void connect(String host, int port) throws UnknownHostException, java.io.IOException
protected internal override void Connect(String host, int port)
{
bool connected = false;
try
{
InetAddress address = InetAddress.GetByName(host);
this.Port_Renamed = port;
this.Address = address;
ConnectToAddress(address, port, Timeout_Renamed);
connected = true;
}
finally
{
if (!connected)
{
try
{
Close();
}
catch (IOException)
{
/* Do nothing. If connect threw an exception then
* it will be passed up the call stack */
}
}
}
}
/// <summary>
/// Get the IP address of our host. An empty host field or a DNS failure
/// will result in a null return.
/// </summary>
/// <param name="u"> a URL object </param>
/// <returns> an {@code InetAddress} representing the host
/// IP address.
/// @since 1.3 </returns>
protected internal virtual InetAddress GetHostAddress(URL u)
{
lock (this)
{
if (u.HostAddress != null)
{
return(u.HostAddress);
}
String host = u.Host;
if (host == null || host.Equals(""))
{
return(null);
}
else
{
try
{
u.HostAddress = InetAddress.GetByName(host);
}
catch (UnknownHostException)
{
return(null);
}
catch (SecurityException)
{
return(null);
}
}
return(u.HostAddress);
}
}
///
/// <summary>
/// Creates a socket address from a hostname and a port number.
/// <para>
/// An attempt will be made to resolve the hostname into an InetAddress.
/// If that attempt fails, the address will be flagged as <I>unresolved</I>.
/// </para>
/// <para>
/// If there is a security manager, its {@code checkConnect} method
/// is called with the host name as its argument to check the permission
/// to resolve it. This could result in a SecurityException.
/// <P>
/// A valid port value is between 0 and 65535.
/// A port number of {@code zero} will let the system pick up an
/// ephemeral port in a {@code bind} operation.
/// <P>
/// </para>
/// </summary>
/// <param name="hostname"> the Host name </param>
/// <param name="port"> The port number </param>
/// <exception cref="IllegalArgumentException"> if the port parameter is outside the range
/// of valid port values, or if the hostname parameter is <TT>null</TT>. </exception>
/// <exception cref="SecurityException"> if a security manager is present and
/// permission to resolve the host name is
/// denied. </exception>
/// <seealso cref= #isUnresolved() </seealso>
public InetSocketAddress(String hostname, int port)
{
CheckHost(hostname);
InetAddress addr = null;
String host = null;
try
{
addr = InetAddress.GetByName(hostname);
}
catch (UnknownHostException)
{
host = hostname;
}
Holder = new InetSocketAddressHolder(host, addr, CheckPort(port));
}