diff options
Diffstat (limited to 'libjava/classpath/java/net/Inet6Address.java')
| -rw-r--r-- | libjava/classpath/java/net/Inet6Address.java | 171 |
1 files changed, 166 insertions, 5 deletions
diff --git a/libjava/classpath/java/net/Inet6Address.java b/libjava/classpath/java/net/Inet6Address.java index 0d62fe919a0..8d834a6fd28 100644 --- a/libjava/classpath/java/net/Inet6Address.java +++ b/libjava/classpath/java/net/Inet6Address.java @@ -39,13 +39,16 @@ exception statement from your version. */ package java.net; import java.util.Arrays; +import java.io.ObjectInputStream; +import java.io.ObjectOutputStream; +import java.io.IOException; /* * Written using on-line Java Platform 1.4 API Specification and * RFC 1884 (http://www.ietf.org/rfc/rfc1884.txt) * * @author Michael Koch - * @status Believed complete and correct. + * @status Updated to 1.5. Serialization compatibility is tested. */ public final class Inet6Address extends InetAddress { @@ -57,6 +60,39 @@ public final class Inet6Address extends InetAddress byte[] ipaddress; /** + * The scope ID, if any. + * @since 1.5 + * @serial + */ + private int scope_id; + + /** + * The scope ID, if any. + * @since 1.5 + * @serial + */ + private boolean scope_id_set; + + /** + * Whether ifname is set or not. + * @since 1.5 + * @serial + */ + private boolean scope_ifname_set; + + /** + * Name of the network interface, used only by the serialization methods + * @since 1.5 + * @serial + */ + private String ifname; + + /** + * Scope network interface, or <code>null</code>. + */ + private transient NetworkInterface nif; + + /** * Create an Inet6Address object * * @param addr The IP address @@ -67,6 +103,10 @@ public final class Inet6Address extends InetAddress super(addr, host); // Super constructor clones the addr. Get a reference to the clone. this.ipaddress = this.addr; + ifname = null; + scope_ifname_set = scope_id_set = false; + scope_id = 0; + nif = null; } /** @@ -199,6 +239,75 @@ public final class Inet6Address extends InetAddress } /** + * Creates a scoped Inet6Address where the scope has an integer id. + * + * @throws UnkownHostException if the address is an invalid number of bytes. + * @since 1.5 + */ + public static Inet6Address getByAddress(String host, byte[] addr, + int scopeId) + throws UnknownHostException + { + if( addr.length != 16 ) + throw new UnknownHostException("Illegal address length: " + addr.length + + " bytes."); + Inet6Address ip = new Inet6Address( addr, host ); + ip.scope_id = scopeId; + ip.scope_id_set = true; + return ip; + } + + /** + * Creates a scoped Inet6Address where the scope is a given + * NetworkInterface. + * + * @throws UnkownHostException if the address is an invalid number of bytes. + * @since 1.5 + */ + public static Inet6Address getByAddress(String host, byte[] addr, + NetworkInterface nif) + throws UnknownHostException + { + if( addr.length != 16 ) + throw new UnknownHostException("Illegal address length: " + addr.length + + " bytes."); + Inet6Address ip = new Inet6Address( addr, host ); + ip.nif = nif; + + return ip; + } + + /** + * Returns the <code>NetworkInterface</code> of the address scope + * if it is a scoped address and the scope is given in the form of a + * NetworkInterface. + * (I.e. the address was created using the + * getByAddress(String, byte[], NetworkInterface) method) + * Otherwise this method returns <code>null</code>. + * @since 1.5 + */ + public NetworkInterface getScopedInterface() + { + return nif; + } + + /** + * Returns the scope ID of the address scope if it is a scoped adress using + * an integer to identify the scope. + * + * Otherwise this method returns 0. + * @since 1.5 + */ + public int getScopeId() + { + // check scope_id_set because some JDK-serialized objects seem to have + // scope_id set to a nonzero value even when scope_id_set == false + if( scope_id_set ) + return scope_id; + return 0; + } + + /** * Returns the IP address string in textual presentation */ public String getHostAddress() @@ -214,12 +323,17 @@ public final class Inet6Address extends InetAddress sbuf.append(Integer.toHexString(x)); } + if( nif != null ) + sbuf.append( "%" + nif.getName() ); + else if( scope_id_set ) + sbuf.append( "%" + scope_id ); return sbuf.toString(); } /** * Returns a hashcode for this IP address + * (The hashcode is independent of scope) */ public int hashCode() { @@ -234,10 +348,23 @@ public final class Inet6Address extends InetAddress if (! (obj instanceof Inet6Address)) return false; - // this.ipaddress is never set in this class except to - // the value of the super class' addr. The super classes - // equals(Object) will do the compare. - return super.equals(obj); + Inet6Address ip = (Inet6Address)obj; + if (ipaddress.length != ip.ipaddress.length) + return false; + + for (int i = 0; i < ip.ipaddress.length; i++) + if (ipaddress[i] != ip.ipaddress[i]) + return false; + + if( ip.nif != null && nif != null ) + return nif.equals( ip.nif ); + if( ip.nif != nif ) + return false; + if( ip.scope_id_set != scope_id_set ) + return false; + if( scope_id_set ) + return (scope_id == ip.scope_id); + return true; } /** @@ -258,4 +385,38 @@ public final class Inet6Address extends InetAddress return true; } + + /** + * Required for 1.5-compatible serialization. + * @since 1.5 + */ + private void readObject(ObjectInputStream s) + throws IOException, ClassNotFoundException + { + s.defaultReadObject(); + try + { + if( scope_ifname_set ) + nif = NetworkInterface.getByName( ifname ); + } + catch( SocketException se ) + { + // FIXME: Ignore this? or throw an IOException? + } + } + + /** + * Required for 1.5-compatible serialization. + * @since 1.5 + */ + private void writeObject(ObjectOutputStream s) + throws IOException + { + if( nif != null ) + { + ifname = nif.getName(); + scope_ifname_set = true; + } + s.defaultWriteObject(); + } } |