/// <summary>
/// Compares the host components of two URLs. </summary>
/// <param name="u1"> the URL of the first host to compare </param>
/// <param name="u2"> the URL of the second host to compare </param>
/// <returns> {@code true} if and only if they
/// are equal, {@code false} otherwise.
/// @since 1.3 </returns>
protected internal virtual bool HostsEqual(URL u1, URL u2)
{
InetAddress a1 = GetHostAddress(u1);
InetAddress a2 = GetHostAddress(u2);
// if we have internet address for both, compare them
if (a1 != null && a2 != null)
{
return(a1.Equals(a2));
// else, if both have host names, compare them
}
else if (u1.Host != null && u2.Host != null)
{
return(u1.Host.EqualsIgnoreCase(u2.Host));
}
else
{
return(u1.Host == null && u2.Host == null);
}
}
public override sealed bool Equals(Object obj)
{
if (obj == null || !(obj is InetSocketAddressHolder))
{
return(false);
}
InetSocketAddressHolder that = (InetSocketAddressHolder)obj;
bool sameIP;
if (Addr != null)
{
sameIP = Addr.Equals(that.Addr);
}
else if (Hostname != null)
{
sameIP = (that.Addr == null) && Hostname.EqualsIgnoreCase(that.Hostname);
}
else
{
sameIP = (that.Addr == null) && (that.Hostname == null);
}
return(sameIP && (Port_Renamed == that.Port_Renamed));
}
public virtual void Send(DatagramPacket p, sbyte ttl)
{
if (Closed)
{
throw new SocketException("Socket is closed");
}
CheckAddress(p.Address, "send");
lock (TtlLock)
{
lock (p)
{
if (ConnectState == ST_NOT_CONNECTED)
{
// Security manager makes sure that the multicast address
// is allowed one and that the ttl used is less
// than the allowed maxttl.
SecurityManager security = System.SecurityManager;
if (security != null)
{
if (p.Address.MulticastAddress)
{
security.CheckMulticast(p.Address, ttl);
}
else
{
security.CheckConnect(p.Address.HostAddress, p.Port);
}
}
}
else
{
// we're connected
InetAddress packetAddress = null;
packetAddress = p.Address;
if (packetAddress == null)
{
p.Address = ConnectedAddress;
p.Port = ConnectedPort;
}
else if ((!packetAddress.Equals(ConnectedAddress)) || p.Port != ConnectedPort)
{
throw new SecurityException("connected address and packet address" + " differ");
}
}
sbyte dttl = TTL;
try
{
if (ttl != dttl)
{
// set the ttl
Impl.TTL = ttl;
}
// call the datagram method to send
Impl.Send(p);
}
finally
{
// set it back to default
if (ttl != dttl)
{
Impl.TTL = dttl;
}
}
} // synch p
} //synch ttl
} //method