211 int scope_id; // 0
212
213 /**
214 * This will be set to true when the scope_id field contains a valid
215 * integer scope_id.
216 */
217 boolean scope_id_set; // false
218
219 /**
220 * scoped interface. scope_id is derived from this as the scope_id of the first
221 * address whose scope is the same as this address for the named interface.
222 */
223 NetworkInterface scope_ifname; // null
224
225 /**
226 * set if the object is constructed with a scoped
227 * interface instead of a numeric scope id.
228 */
229 boolean scope_ifname_set; // false;
230
231 void setAddr(byte addr[]) {
232 if (addr.length == INADDRSZ) { // normal IPv6 address
233 System.arraycopy(addr, 0, ipaddress, 0, INADDRSZ);
234 }
235 }
236
237 void init(byte addr[], int scope_id) {
238 setAddr(addr);
239
240 if (scope_id >= 0) {
241 this.scope_id = scope_id;
242 this.scope_id_set = true;
243 }
244 }
245
246 void init(byte addr[], NetworkInterface nif)
247 throws UnknownHostException
248 {
249 setAddr(addr);
250
251 if (nif != null) {
252 this.scope_id = deriveNumericScope(ipaddress, nif);
253 this.scope_id_set = true;
254 this.scope_ifname = nif;
255 this.scope_ifname_set = true;
256 }
257 }
258
259 String getHostAddress() {
260 String s = numericToTextFormat(ipaddress);
261 if (scope_ifname != null) { /* must check this first */
262 s = s + "%" + scope_ifname.getName();
263 } else if (scope_id_set) {
264 s = s + "%" + scope_id;
265 }
266 return s;
365 && (ipaddress[1] & 0x0f) == 0x08);
366 }
367 }
368
369 private final transient Inet6AddressHolder holder6;
370
371 private static final long serialVersionUID = 6880410070516793377L;
372
373 // Perform native initialization
374 static { init(); }
375
376 Inet6Address() {
377 super();
378 holder.init(null, IPv6);
379 holder6 = new Inet6AddressHolder();
380 }
381
382 /* checking of value for scope_id should be done by caller
383 * scope_id must be >= 0, or -1 to indicate not being set
384 */
385 Inet6Address(String hostName, byte addr[], int scope_id) {
386 holder.init(hostName, IPv6);
387 holder6 = new Inet6AddressHolder();
388 holder6.init(addr, scope_id);
389 }
390
391 Inet6Address(String hostName, byte addr[]) {
392 holder6 = new Inet6AddressHolder();
393 try {
394 initif (hostName, addr, null);
395 } catch (UnknownHostException e) {} /* cant happen if ifname is null */
396 }
397
398 Inet6Address (String hostName, byte addr[], NetworkInterface nif)
399 throws UnknownHostException
400 {
401 holder6 = new Inet6AddressHolder();
402 initif (hostName, addr, nif);
403 }
404
405 Inet6Address (String hostName, byte addr[], String ifname)
406 throws UnknownHostException
407 {
408 holder6 = new Inet6AddressHolder();
409 initstr (hostName, addr, ifname);
410 }
411
412 /**
413 * Create an Inet6Address in the exact manner of {@link
414 * InetAddress#getByAddress(String,byte[])} except that the IPv6 scope_id is
415 * set to the value corresponding to the given interface for the address
416 * type specified in {@code addr}. The call will fail with an
417 * UnknownHostException if the given interface does not have a numeric
418 * scope_id assigned for the given address type (eg. link-local or site-local).
419 * See <a href="Inet6Address.html#scoped">here</a> for a description of IPv6
420 * scoped addresses.
421 *
422 * @param host the specified host
423 * @param addr the raw IP address in network byte order
424 * @param nif an interface this address must be associated with.
425 * @return an Inet6Address object created from the raw IP address.
462 *
463 * @since 1.5
464 */
465 public static Inet6Address getByAddress(String host, byte[] addr,
466 int scope_id)
467 throws UnknownHostException
468 {
469 if (host != null && host.length() > 0 && host.charAt(0) == '[') {
470 if (host.charAt(host.length()-1) == ']') {
471 host = host.substring(1, host.length() -1);
472 }
473 }
474 if (addr != null) {
475 if (addr.length == Inet6Address.INADDRSZ) {
476 return new Inet6Address(host, addr, scope_id);
477 }
478 }
479 throw new UnknownHostException("addr is of illegal length");
480 }
481
482 private void initstr(String hostName, byte addr[], String ifname)
483 throws UnknownHostException
484 {
485 try {
486 NetworkInterface nif = NetworkInterface.getByName (ifname);
487 if (nif == null) {
488 throw new UnknownHostException ("no such interface " + ifname);
489 }
490 initif (hostName, addr, nif);
491 } catch (SocketException e) {
492 throw new UnknownHostException ("SocketException thrown" + ifname);
493 }
494 }
495
496 private void initif(String hostName, byte addr[], NetworkInterface nif)
497 throws UnknownHostException
498 {
499 int family = -1;
500 holder6.init(addr, nif);
501
502 if (addr.length == INADDRSZ) { // normal IPv6 address
503 family = IPv6;
504 }
505 holder.init(hostName, family);
506 }
507
508 /* check the two Ipv6 addresses and return false if they are both
509 * non global address types, but not the same.
510 * (ie. one is sitelocal and the other linklocal)
511 * return true otherwise.
512 */
513
514 private static boolean isDifferentLocalAddressType(
515 byte[] thisAddr, byte[] otherAddr) {
516
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211 int scope_id; // 0
212
213 /**
214 * This will be set to true when the scope_id field contains a valid
215 * integer scope_id.
216 */
217 boolean scope_id_set; // false
218
219 /**
220 * scoped interface. scope_id is derived from this as the scope_id of the first
221 * address whose scope is the same as this address for the named interface.
222 */
223 NetworkInterface scope_ifname; // null
224
225 /**
226 * set if the object is constructed with a scoped
227 * interface instead of a numeric scope id.
228 */
229 boolean scope_ifname_set; // false;
230
231 void setAddr(byte[] addr) {
232 if (addr.length == INADDRSZ) { // normal IPv6 address
233 System.arraycopy(addr, 0, ipaddress, 0, INADDRSZ);
234 }
235 }
236
237 void init(byte[] addr, int scope_id) {
238 setAddr(addr);
239
240 if (scope_id >= 0) {
241 this.scope_id = scope_id;
242 this.scope_id_set = true;
243 }
244 }
245
246 void init(byte[] addr, NetworkInterface nif)
247 throws UnknownHostException
248 {
249 setAddr(addr);
250
251 if (nif != null) {
252 this.scope_id = deriveNumericScope(ipaddress, nif);
253 this.scope_id_set = true;
254 this.scope_ifname = nif;
255 this.scope_ifname_set = true;
256 }
257 }
258
259 String getHostAddress() {
260 String s = numericToTextFormat(ipaddress);
261 if (scope_ifname != null) { /* must check this first */
262 s = s + "%" + scope_ifname.getName();
263 } else if (scope_id_set) {
264 s = s + "%" + scope_id;
265 }
266 return s;
365 && (ipaddress[1] & 0x0f) == 0x08);
366 }
367 }
368
369 private final transient Inet6AddressHolder holder6;
370
371 private static final long serialVersionUID = 6880410070516793377L;
372
373 // Perform native initialization
374 static { init(); }
375
376 Inet6Address() {
377 super();
378 holder.init(null, IPv6);
379 holder6 = new Inet6AddressHolder();
380 }
381
382 /* checking of value for scope_id should be done by caller
383 * scope_id must be >= 0, or -1 to indicate not being set
384 */
385 Inet6Address(String hostName, byte[] addr, int scope_id) {
386 holder.init(hostName, IPv6);
387 holder6 = new Inet6AddressHolder();
388 holder6.init(addr, scope_id);
389 }
390
391 Inet6Address(String hostName, byte[] addr) {
392 holder6 = new Inet6AddressHolder();
393 try {
394 initif (hostName, addr, null);
395 } catch (UnknownHostException e) {} /* cant happen if ifname is null */
396 }
397
398 Inet6Address (String hostName, byte[] addr, NetworkInterface nif)
399 throws UnknownHostException
400 {
401 holder6 = new Inet6AddressHolder();
402 initif (hostName, addr, nif);
403 }
404
405 Inet6Address (String hostName, byte[] addr, String ifname)
406 throws UnknownHostException
407 {
408 holder6 = new Inet6AddressHolder();
409 initstr (hostName, addr, ifname);
410 }
411
412 /**
413 * Create an Inet6Address in the exact manner of {@link
414 * InetAddress#getByAddress(String,byte[])} except that the IPv6 scope_id is
415 * set to the value corresponding to the given interface for the address
416 * type specified in {@code addr}. The call will fail with an
417 * UnknownHostException if the given interface does not have a numeric
418 * scope_id assigned for the given address type (eg. link-local or site-local).
419 * See <a href="Inet6Address.html#scoped">here</a> for a description of IPv6
420 * scoped addresses.
421 *
422 * @param host the specified host
423 * @param addr the raw IP address in network byte order
424 * @param nif an interface this address must be associated with.
425 * @return an Inet6Address object created from the raw IP address.
462 *
463 * @since 1.5
464 */
465 public static Inet6Address getByAddress(String host, byte[] addr,
466 int scope_id)
467 throws UnknownHostException
468 {
469 if (host != null && host.length() > 0 && host.charAt(0) == '[') {
470 if (host.charAt(host.length()-1) == ']') {
471 host = host.substring(1, host.length() -1);
472 }
473 }
474 if (addr != null) {
475 if (addr.length == Inet6Address.INADDRSZ) {
476 return new Inet6Address(host, addr, scope_id);
477 }
478 }
479 throw new UnknownHostException("addr is of illegal length");
480 }
481
482 private void initstr(String hostName, byte[] addr, String ifname)
483 throws UnknownHostException
484 {
485 try {
486 NetworkInterface nif = NetworkInterface.getByName (ifname);
487 if (nif == null) {
488 throw new UnknownHostException ("no such interface " + ifname);
489 }
490 initif (hostName, addr, nif);
491 } catch (SocketException e) {
492 throw new UnknownHostException ("SocketException thrown" + ifname);
493 }
494 }
495
496 private void initif(String hostName, byte[] addr, NetworkInterface nif)
497 throws UnknownHostException
498 {
499 int family = -1;
500 holder6.init(addr, nif);
501
502 if (addr.length == INADDRSZ) { // normal IPv6 address
503 family = IPv6;
504 }
505 holder.init(hostName, family);
506 }
507
508 /* check the two Ipv6 addresses and return false if they are both
509 * non global address types, but not the same.
510 * (ie. one is sitelocal and the other linklocal)
511 * return true otherwise.
512 */
513
514 private static boolean isDifferentLocalAddressType(
515 byte[] thisAddr, byte[] otherAddr) {
516
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