/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* This class represents a Network Interface address. In short it's an
* IP address, a subnet mask and a broadcast address when the address is
* an IPv4 one. An IP address and a network prefix length in the case
* of IPv6 address.
*
* @see java.net.NetworkInterface
* @since 1.6
*/
public class InterfaceAddress {
/*
* Package private constructor. Can't be built directly, instances are
* obtained through the NetworkInterface class.
*/
InterfaceAddress() {
}
/**
* Returns an <code>InetAddress</code> for this address.
*
* @return the <code>InetAddress</code> for this address.
*/
return address;
}
/**
* Returns an <code>InetAddress</code> for the brodcast address
* for this InterfaceAddress.
* <p>
* Only IPv4 networks have broadcast address therefore, in the case
* of an IPv6 network, <code>null</code> will be returned.
*
* @return the <code>InetAddress</code> representing the broadcast
* address or <code>null</code> if there is no broadcast address.
*/
return broadcast;
}
/**
* Returns the network prefix length for this address. This is also known
* as the subnet mask in the context of IPv4 addresses.
* Typical IPv4 values would be 8 (255.0.0.0), 16 (255.255.0.0)
* or 24 (255.255.255.0). <p>
* Typical IPv6 values would be 128 (::1/128) or 10 (fe80::203:baff:fe27:1243/10)
*
* @return a <code>short</code> representing the prefix length for the
* subnet of that address.
*/
public short getNetworkPrefixLength() {
return maskLength;
}
/**
* Compares this object against the specified object.
* The result is <code>true</code> if and only if the argument is
* not <code>null</code> and it represents the same interface address as
* this object.
* <p>
* Two instances of <code>InterfaceAddress</code> represent the same
* address if the InetAddress, the prefix length and the broadcast are
* the same for both.
*
* @param obj the object to compare against.
* @return <code>true</code> if the objects are the same;
* <code>false</code> otherwise.
* @see java.net.InterfaceAddress#hashCode()
*/
if (!(obj instanceof InterfaceAddress)) {
return false;
}
return false;
return false;
return false;
return true;
}
/**
* Returns a hashcode for this Interface address.
*
* @return a hash code value for this Interface address.
*/
public int hashCode() {
}
/**
* Converts this Interface address to a <code>String</code>. The
* string returned is of the form: InetAddress / prefix length [ broadcast address ].
*
* @return a string representation of this Interface address.
*/
}
}