gio/ginetaddress.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2008 Christian Kellner, Samuel Cormier-Iijima
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Authors: Christian Kellner <gicmo@gnome.org>
  21  *          Samuel Cormier-Iijima <sciyoshi@gmail.com>
  22  */
  23
  24 #include <config.h>
  25
  26 #include <string.h>
  27
  28 #include <glib.h>
  29
  30 #include "ginetaddress.h"
  31 #include "gioenums.h"
  32 #include "gioenumtypes.h"
  33 #include "glibintl.h"
  34 #include "gnetworkingprivate.h"
  35
  36
  37 /**
  38  * SECTION:ginetaddress
  39  * @short_description: An IPv4/IPv6 address
  40  *
  41  * #GInetAddress represents an IPv4 or IPv6 internet address. Use
  42  * g_resolver_lookup_by_name() or g_resolver_lookup_by_name_async() to
  43  * look up the #GInetAddress for a hostname. Use
  44  * g_resolver_lookup_by_address() or
  45  * g_resolver_lookup_by_address_async() to look up the hostname for a
  46  * #GInetAddress.
  47  *
  48  * To actually connect to a remote host, you will need a
  49  * #GInetSocketAddress (which includes a #GInetAddress as well as a
  50  * port number).
  51  */
  52
  53 /**
  54  * GInetAddress:
  55  *
  56  * An IPv4 or IPv6 internet address.
  57  */
  58
  59 /* Networking initialization function, called from inside the g_once of
  60  * g_inet_address_get_type()
  61  */
  62 static void
  63 _g_networking_init (void)
  64 {
  65 #ifdef G_OS_WIN32
  66   WSADATA wsadata;
  67   if (WSAStartup (MAKEWORD (2, 0), &wsadata) != 0)
  68     g_error ("Windows Sockets could not be initialized");
  69 #endif
  70 }
  71
  72 G_DEFINE_TYPE_WITH_CODE (GInetAddress, g_inet_address, G_TYPE_OBJECT,
  73                          _g_networking_init ();)
  74
  75 struct _GInetAddressPrivate
  76 {
  77   GSocketFamily family;
  78   union {
  79     struct in_addr ipv4;
  80     struct in6_addr ipv6;
  81   } addr;
  82 };
  83
  84 enum
  85 {
  86   PROP_0,
  87   PROP_FAMILY,
  88   PROP_BYTES,
  89   PROP_IS_ANY,
  90   PROP_IS_LOOPBACK,
  91   PROP_IS_LINK_LOCAL,
  92   PROP_IS_SITE_LOCAL,
  93   PROP_IS_MULTICAST,
  94   PROP_IS_MC_GLOBAL,
  95   PROP_IS_MC_LINK_LOCAL,
  96   PROP_IS_MC_NODE_LOCAL,
  97   PROP_IS_MC_ORG_LOCAL,
  98   PROP_IS_MC_SITE_LOCAL,
  99 };
 100
 101 static void
 102 g_inet_address_set_property (GObject      *object,
 103                              guint         prop_id,
 104                              const GValue *value,
 105                              GParamSpec   *pspec)
 106 {
 107   GInetAddress *address = G_INET_ADDRESS (object);
 108
 109   switch (prop_id)
 110     {
 111     case PROP_FAMILY:
 112       address->priv->family = g_value_get_enum (value);
 113       break;
 114
 115     case PROP_BYTES:
 116       memcpy (&address->priv->addr, g_value_get_pointer (value),
 117               address->priv->family == AF_INET ?
 118               sizeof (address->priv->addr.ipv4) :
 119               sizeof (address->priv->addr.ipv6));
 120       break;
 121
 122     default:
 123       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 124       break;
 125     }
 126
 127 }
 128
 129 static void
 130 g_inet_address_get_property (GObject    *object,
 131                              guint       prop_id,
 132                              GValue     *value,
 133                              GParamSpec *pspec)
 134 {
 135   GInetAddress *address = G_INET_ADDRESS (object);
 136
 137   switch (prop_id)
 138     {
 139     case PROP_FAMILY:
 140       g_value_set_enum (value, address->priv->family);
 141       break;
 142
 143     case PROP_BYTES:
 144       g_value_set_pointer (value, &address->priv->addr);
 145       break;
 146
 147     case PROP_IS_ANY:
 148       g_value_set_boolean (value, g_inet_address_get_is_any (address));
 149       break;
 150
 151     case PROP_IS_LOOPBACK:
 152       g_value_set_boolean (value, g_inet_address_get_is_loopback (address));
 153       break;
 154
 155     case PROP_IS_LINK_LOCAL:
 156       g_value_set_boolean (value, g_inet_address_get_is_link_local (address));
 157       break;
 158
 159     case PROP_IS_SITE_LOCAL:
 160       g_value_set_boolean (value, g_inet_address_get_is_site_local (address));
 161       break;
 162
 163     case PROP_IS_MULTICAST:
 164       g_value_set_boolean (value, g_inet_address_get_is_multicast (address));
 165       break;
 166
 167     case PROP_IS_MC_GLOBAL:
 168       g_value_set_boolean (value, g_inet_address_get_is_mc_global (address));
 169       break;
 170
 171     case PROP_IS_MC_LINK_LOCAL:
 172       g_value_set_boolean (value, g_inet_address_get_is_mc_link_local (address));
 173       break;
 174
 175     case PROP_IS_MC_NODE_LOCAL:
 176       g_value_set_boolean (value, g_inet_address_get_is_mc_node_local (address));
 177       break;
 178
 179     case PROP_IS_MC_ORG_LOCAL:
 180       g_value_set_boolean (value, g_inet_address_get_is_mc_org_local (address));
 181       break;
 182
 183     case PROP_IS_MC_SITE_LOCAL:
 184       g_value_set_boolean (value, g_inet_address_get_is_mc_site_local (address));
 185       break;
 186
 187     default:
 188       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 189     }
 190 }
 191
 192 static void
 193 g_inet_address_class_init (GInetAddressClass *klass)
 194 {
 195   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 196
 197   g_type_class_add_private (klass, sizeof (GInetAddressPrivate));
 198
 199   gobject_class->set_property = g_inet_address_set_property;
 200   gobject_class->get_property = g_inet_address_get_property;
 201
 202   g_object_class_install_property (gobject_class, PROP_FAMILY,
 203                                    g_param_spec_enum ("family",
 204                                                       P_("Address family"),
 205                                                       P_("The address family (IPv4 or IPv6)"),
 206                                                       G_TYPE_SOCKET_FAMILY,
 207                                                       G_SOCKET_FAMILY_INVALID,
 208                                                       G_PARAM_READWRITE |
 209                                                       G_PARAM_CONSTRUCT_ONLY |
 210                                                       G_PARAM_STATIC_STRINGS));
 211
 212   g_object_class_install_property (gobject_class, PROP_BYTES,
 213                                    g_param_spec_pointer ("bytes",
 214                                                          P_("Bytes"),
 215                                                          P_("The raw address data"),
 216                                                          G_PARAM_READWRITE |
 217                                                          G_PARAM_CONSTRUCT_ONLY |
 218                                                          G_PARAM_STATIC_STRINGS));
 219
 220   /**
 221    * GInetAddress:is-any:
 222    *
 223    * Whether this is the "any" address for its family.
 224    * See g_inet_address_get_is_any().
 225    *
 226    * Since: 2.22
 227    */
 228   g_object_class_install_property (gobject_class, PROP_IS_ANY,
 229                                    g_param_spec_boolean ("is-any",
 230                                                          P_("Is any"),
 231                                                          P_("Whether this is the \"any\" address for its family"),
 232                                                          FALSE,
 233                                                          G_PARAM_READABLE |
 234                                                          G_PARAM_STATIC_STRINGS));
 235
 236   /**
 237    * GInetAddress:is-link-local:
 238    *
 239    * Whether this is a link-local address.
 240    * See g_inet_address_get_is_link_local().
 241    *
 242    * Since: 2.22
 243    */
 244   g_object_class_install_property (gobject_class, PROP_IS_LINK_LOCAL,
 245                                    g_param_spec_boolean ("is-link-local",
 246                                                          P_("Is link-local"),
 247                                                          P_("Whether this is a link-local address"),
 248                                                          FALSE,
 249                                                          G_PARAM_READABLE |
 250                                                          G_PARAM_STATIC_STRINGS));
 251
 252   /**
 253    * GInetAddress:is-loopback:
 254    *
 255    * Whether this is the loopback address for its family.
 256    * See g_inet_address_get_is_loopback().
 257    *
 258    * Since: 2.22
 259    */
 260   g_object_class_install_property (gobject_class, PROP_IS_LOOPBACK,
 261                                    g_param_spec_boolean ("is-loopback",
 262                                                          P_("Is loopback"),
 263                                                          P_("Whether this is the loopback address for its family"),
 264                                                          FALSE,
 265                                                          G_PARAM_READABLE |
 266                                                          G_PARAM_STATIC_STRINGS));
 267
 268   /**
 269    * GInetAddress:is-site-local:
 270    *
 271    * Whether this is a site-local address.
 272    * See g_inet_address_get_is_loopback().
 273    *
 274    * Since: 2.22
 275    */
 276   g_object_class_install_property (gobject_class, PROP_IS_SITE_LOCAL,
 277                                    g_param_spec_boolean ("is-site-local",
 278                                                          P_("Is site-local"),
 279                                                          P_("Whether this is a site-local address"),
 280                                                          FALSE,
 281                                                          G_PARAM_READABLE |
 282                                                          G_PARAM_STATIC_STRINGS));
 283
 284   /**
 285    * GInetAddress:is-multicast:
 286    *
 287    * Whether this is a multicast address.
 288    * See g_inet_address_get_is_multicast().
 289    *
 290    * Since: 2.22
 291    */
 292   g_object_class_install_property (gobject_class, PROP_IS_MULTICAST,
 293                                    g_param_spec_boolean ("is-multicast",
 294                                                          P_("Is multicast"),
 295                                                          P_("Whether this is a multicast address"),
 296                                                          FALSE,
 297                                                          G_PARAM_READABLE |
 298                                                          G_PARAM_STATIC_STRINGS));
 299
 300   /**
 301    * GInetAddress:is-mc-global:
 302    *
 303    * Whether this is a global multicast address.
 304    * See g_inet_address_get_is_mc_global().
 305    *
 306    * Since: 2.22
 307    */
 308   g_object_class_install_property (gobject_class, PROP_IS_MC_GLOBAL,
 309                                    g_param_spec_boolean ("is-mc-global",
 310                                                          P_("Is multicast global"),
 311                                                          P_("Whether this is a global multicast address"),
 312                                                          FALSE,
 313                                                          G_PARAM_READABLE |
 314                                                          G_PARAM_STATIC_STRINGS));
 315
 316
 317   /**
 318    * GInetAddress:is-mc-link-local:
 319    *
 320    * Whether this is a link-local multicast address.
 321    * See g_inet_address_get_is_mc_link_local().
 322    *
 323    * Since: 2.22
 324    */
 325   g_object_class_install_property (gobject_class, PROP_IS_MC_LINK_LOCAL,
 326                                    g_param_spec_boolean ("is-mc-link-local",
 327                                                          P_("Is multicast link-local"),
 328                                                          P_("Whether this is a link-local multicast address"),
 329                                                          FALSE,
 330                                                          G_PARAM_READABLE |
 331                                                          G_PARAM_STATIC_STRINGS));
 332
 333   /**
 334    * GInetAddress:is-mc-node-local:
 335    *
 336    * Whether this is a node-local multicast address.
 337    * See g_inet_address_get_is_mc_node_local().
 338    *
 339    * Since: 2.22
 340    */
 341   g_object_class_install_property (gobject_class, PROP_IS_MC_NODE_LOCAL,
 342                                    g_param_spec_boolean ("is-mc-node-local",
 343                                                          P_("Is multicast node-local"),
 344                                                          P_("Whether this is a node-local multicast address"),
 345                                                          FALSE,
 346                                                          G_PARAM_READABLE |
 347                                                          G_PARAM_STATIC_STRINGS));
 348
 349   /**
 350    * GInetAddress:is-mc-org-local:
 351    *
 352    * Whether this is an organization-local multicast address.
 353    * See g_inet_address_get_is_mc_org_local().
 354    *
 355    * Since: 2.22
 356    */
 357   g_object_class_install_property (gobject_class, PROP_IS_MC_ORG_LOCAL,
 358                                    g_param_spec_boolean ("is-mc-org-local",
 359                                                          P_("Is multicast org-local"),
 360                                                          P_("Whether this is an organization-local multicast address"),
 361                                                          FALSE,
 362                                                          G_PARAM_READABLE |
 363                                                          G_PARAM_STATIC_STRINGS));
 364
 365   /**
 366    * GInetAddress:is-mc-site-local:
 367    *
 368    * Whether this is a site-local multicast address.
 369    * See g_inet_address_get_is_mc_site_local().
 370    *
 371    * Since: 2.22
 372    */
 373   g_object_class_install_property (gobject_class, PROP_IS_MC_SITE_LOCAL,
 374                                    g_param_spec_boolean ("is-mc-site-local",
 375                                                          P_("Is multicast site-local"),
 376                                                          P_("Whether this is a site-local multicast address"),
 377                                                          FALSE,
 378                                                          G_PARAM_READABLE |
 379                                                          G_PARAM_STATIC_STRINGS));
 380 }
 381
 382 static void
 383 g_inet_address_init (GInetAddress *address)
 384 {
 385   address->priv = G_TYPE_INSTANCE_GET_PRIVATE (address,
 386                                                G_TYPE_INET_ADDRESS,
 387                                                GInetAddressPrivate);
 388 }
 389
 390 /**
 391  * g_inet_address_new_from_string:
 392  * @string: a string representation of an IP address
 393  *
 394  * Parses @string as an IP address and creates a new #GInetAddress.
 395  *
 396  * Returns: a new #GInetAddress corresponding to @string, or %NULL if
 397  * @string could not be parsed.
 398  *
 399  * Since: 2.22
 400  */
 401 GInetAddress *
 402 g_inet_address_new_from_string (const gchar *string)
 403 {
 404   volatile GType type;
 405 #ifdef G_OS_WIN32
 406   struct sockaddr_storage sa;
 407   struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
 408   struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
 409   gint len;
 410 #else /* !G_OS_WIN32 */
 411   struct in_addr in_addr;
 412   struct in6_addr in6_addr;
 413 #endif
 414
 415   /* Make sure _g_networking_init() has been called */
 416   type = g_inet_address_get_type ();
 417   (type); /* To avoid -Wunused-but-set-variable */
 418
 419 #ifdef G_OS_WIN32
 420   memset (&sa, 0, sizeof (sa));
 421   len = sizeof (sa);
 422   if (WSAStringToAddress ((LPTSTR) string, AF_INET, NULL, (LPSOCKADDR) &sa, &len) == 0)
 423     return g_inet_address_new_from_bytes ((guint8 *)&sin->sin_addr, AF_INET);
 424   else if (WSAStringToAddress ((LPTSTR) string, AF_INET6, NULL, (LPSOCKADDR) &sa, &len) == 0)
 425     return g_inet_address_new_from_bytes ((guint8 *)&sin6->sin6_addr, AF_INET6);
 426
 427 #else /* !G_OS_WIN32 */
 428
 429   if (inet_pton (AF_INET, string, &in_addr) > 0)
 430     return g_inet_address_new_from_bytes ((guint8 *)&in_addr, AF_INET);
 431   else if (inet_pton (AF_INET6, string, &in6_addr) > 0)
 432     return g_inet_address_new_from_bytes ((guint8 *)&in6_addr, AF_INET6);
 433 #endif
 434
 435   return NULL;
 436 }
 437
 438 #define G_INET_ADDRESS_FAMILY_IS_VALID(family) ((family) == AF_INET || (family) == AF_INET6)
 439
 440 /**
 441  * g_inet_address_new_from_bytes:
 442  * @bytes: raw address data
 443  * @family: the address family of @bytes
 444  *
 445  * Creates a new #GInetAddress from the given @family and @bytes.
 446  * @bytes should be 4 bytes for %G_INET_ADDRESS_IPV4 and 16 bytes for
 447  * %G_INET_ADDRESS_IPV6.
 448  *
 449  * Returns: a new #GInetAddress corresponding to @family and @bytes.
 450  *
 451  * Since: 2.22
 452  */
 453 GInetAddress *
 454 g_inet_address_new_from_bytes (const guint8         *bytes,
 455                                GSocketFamily  family)
 456 {
 457   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 458
 459   return g_object_new (G_TYPE_INET_ADDRESS,
 460                        "family", family,
 461                        "bytes", bytes,
 462                        NULL);
 463 }
 464
 465 /**
 466  * g_inet_address_new_loopback:
 467  * @family: the address family
 468  *
 469  * Creates a #GInetAddress for the loopback address for @family.
 470  *
 471  * Returns: a new #GInetAddress corresponding to the loopback address
 472  * for @family.
 473  *
 474  * Since: 2.22
 475  */
 476 GInetAddress *
 477 g_inet_address_new_loopback (GSocketFamily family)
 478 {
 479   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 480
 481   if (family == AF_INET)
 482     {
 483       guint8 addr[4] = {127, 0, 0, 1};
 484
 485       return g_inet_address_new_from_bytes (addr, family);
 486     }
 487   else
 488     return g_inet_address_new_from_bytes (in6addr_loopback.s6_addr, family);
 489 }
 490
 491 /**
 492  * g_inet_address_new_any:
 493  * @family: the address family
 494  *
 495  * Creates a #GInetAddress for the "any" address (unassigned/"don't
 496  * care") for @family.
 497  *
 498  * Returns: a new #GInetAddress corresponding to the "any" address
 499  * for @family.
 500  *
 501  * Since: 2.22
 502  */
 503 GInetAddress *
 504 g_inet_address_new_any (GSocketFamily family)
 505 {
 506   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 507
 508   if (family == AF_INET)
 509     {
 510       guint8 addr[4] = {0, 0, 0, 0};
 511
 512       return g_inet_address_new_from_bytes (addr, family);
 513     }
 514   else
 515     return g_inet_address_new_from_bytes (in6addr_any.s6_addr, family);
 516 }
 517
 518
 519 /**
 520  * g_inet_address_to_string:
 521  * @address: a #GInetAddress
 522  *
 523  * Converts @address to string form.
 524  *
 525  * Returns: a representation of @address as a string, which should be
 526  * freed after use.
 527  *
 528  * Since: 2.22
 529  */
 530 gchar *
 531 g_inet_address_to_string (GInetAddress *address)
 532 {
 533   gchar buffer[INET6_ADDRSTRLEN];
 534 #ifdef G_OS_WIN32
 535   DWORD buflen = sizeof (buffer), addrlen;
 536   struct sockaddr_storage sa;
 537   struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
 538   struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
 539 #endif
 540
 541   g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
 542
 543 #ifdef G_OS_WIN32
 544   sa.ss_family = address->priv->family;
 545   if (address->priv->family == AF_INET)
 546     {
 547       addrlen = sizeof (*sin);
 548       memcpy (&sin->sin_addr, &address->priv->addr.ipv4,
 549               sizeof (sin->sin_addr));
 550       sin->sin_port = 0;
 551     }
 552   else
 553     {
 554       addrlen = sizeof (*sin6);
 555       memcpy (&sin6->sin6_addr, &address->priv->addr.ipv6,
 556               sizeof (sin6->sin6_addr));
 557       sin6->sin6_port = 0;
 558     }
 559   if (WSAAddressToString ((LPSOCKADDR) &sa, addrlen, NULL, buffer, &buflen) != 0)
 560     return NULL;
 561
 562 #else /* !G_OS_WIN32 */
 563
 564   if (address->priv->family == AF_INET)
 565     inet_ntop (AF_INET, &address->priv->addr.ipv4, buffer, sizeof (buffer));
 566   else
 567     inet_ntop (AF_INET6, &address->priv->addr.ipv6, buffer, sizeof (buffer));
 568 #endif
 569
 570   return g_strdup (buffer);
 571 }
 572
 573 /**
 574  * g_inet_address_to_bytes: (skip)
 575  * @address: a #GInetAddress
 576  *
 577  * Gets the raw binary address data from @address.
 578  *
 579  * Returns: a pointer to an internal array of the bytes in @address,
 580  * which should not be modified, stored, or freed. The size of this
 581  * array can be gotten with g_inet_address_get_native_size().
 582  *
 583  * Since: 2.22
 584  */
 585 const guint8 *
 586 g_inet_address_to_bytes (GInetAddress *address)
 587 {
 588   g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
 589
 590   return (guint8 *)&address->priv->addr;
 591 }
 592
 593 /**
 594  * g_inet_address_get_native_size:
 595  * @address: a #GInetAddress
 596  *
 597  * Gets the size of the native raw binary address for @address. This
 598  * is the size of the data that you get from g_inet_address_to_bytes().
 599  *
 600  * Returns: the number of bytes used for the native version of @address.
 601  *
 602  * Since: 2.22
 603  */
 604 gsize
 605 g_inet_address_get_native_size (GInetAddress *address)
 606 {
 607   if (address->priv->family == AF_INET)
 608     return sizeof (address->priv->addr.ipv4);
 609   return sizeof (address->priv->addr.ipv6);
 610 }
 611
 612 /**
 613  * g_inet_address_get_family:
 614  * @address: a #GInetAddress
 615  *
 616  * Gets @address's family
 617  *
 618  * Returns: @address's family
 619  *
 620  * Since: 2.22
 621  */
 622 GSocketFamily
 623 g_inet_address_get_family (GInetAddress *address)
 624 {
 625   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 626
 627   return address->priv->family;
 628 }
 629
 630 /**
 631  * g_inet_address_get_is_any:
 632  * @address: a #GInetAddress
 633  *
 634  * Tests whether @address is the "any" address for its family.
 635  *
 636  * Returns: %TRUE if @address is the "any" address for its family.
 637  *
 638  * Since: 2.22
 639  */
 640 gboolean
 641 g_inet_address_get_is_any (GInetAddress *address)
 642 {
 643   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 644
 645   if (address->priv->family == AF_INET)
 646     {
 647       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 648
 649       return addr4 == INADDR_ANY;
 650     }
 651   else
 652     return IN6_IS_ADDR_UNSPECIFIED (&address->priv->addr.ipv6);
 653 }
 654
 655 /**
 656  * g_inet_address_get_is_loopback:
 657  * @address: a #GInetAddress
 658  *
 659  * Tests whether @address is the loopback address for its family.
 660  *
 661  * Returns: %TRUE if @address is the loopback address for its family.
 662  *
 663  * Since: 2.22
 664  */
 665 gboolean
 666 g_inet_address_get_is_loopback (GInetAddress *address)
 667 {
 668   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 669
 670   if (address->priv->family == AF_INET)
 671     {
 672       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 673
 674       /* 127.0.0.0/8 */
 675       return ((addr4 & 0xff000000) == 0x7f000000);
 676     }
 677   else
 678     return IN6_IS_ADDR_LOOPBACK (&address->priv->addr.ipv6);
 679 }
 680
 681 /**
 682  * g_inet_address_get_is_link_local:
 683  * @address: a #GInetAddress
 684  *
 685  * Tests whether @address is a link-local address (that is, if it
 686  * identifies a host on a local network that is not connected to the
 687  * Internet).
 688  *
 689  * Returns: %TRUE if @address is a link-local address.
 690  *
 691  * Since: 2.22
 692  */
 693 gboolean
 694 g_inet_address_get_is_link_local (GInetAddress *address)
 695 {
 696   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 697
 698   if (address->priv->family == AF_INET)
 699     {
 700       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 701
 702       /* 169.254.0.0/16 */
 703       return ((addr4 & 0xffff0000) == 0xa9fe0000);
 704     }
 705   else
 706     return IN6_IS_ADDR_LINKLOCAL (&address->priv->addr.ipv6);
 707 }
 708
 709 /**
 710  * g_inet_address_get_is_site_local:
 711  * @address: a #GInetAddress
 712  *
 713  * Tests whether @address is a site-local address such as 10.0.0.1
 714  * (that is, the address identifies a host on a local network that can
 715  * not be reached directly from the Internet, but which may have
 716  * outgoing Internet connectivity via a NAT or firewall).
 717  *
 718  * Returns: %TRUE if @address is a site-local address.
 719  *
 720  * Since: 2.22
 721  */
 722 gboolean
 723 g_inet_address_get_is_site_local (GInetAddress *address)
 724 {
 725   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 726
 727   if (address->priv->family == AF_INET)
 728     {
 729       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 730
 731       /* 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 */
 732       return ((addr4 & 0xff000000) == 0x0a000000 ||
 733               (addr4 & 0xfff00000) == 0xac100000 ||
 734               (addr4 & 0xffff0000) == 0xc0a80000);
 735     }
 736   else
 737     return IN6_IS_ADDR_SITELOCAL (&address->priv->addr.ipv6);
 738 }
 739
 740 /**
 741  * g_inet_address_get_is_multicast:
 742  * @address: a #GInetAddress
 743  *
 744  * Tests whether @address is a multicast address.
 745  *
 746  * Returns: %TRUE if @address is a multicast address.
 747  *
 748  * Since: 2.22
 749  */
 750 gboolean
 751 g_inet_address_get_is_multicast (GInetAddress *address)
 752 {
 753   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 754
 755   if (address->priv->family == AF_INET)
 756     {
 757       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 758
 759       return IN_MULTICAST (addr4);
 760     }
 761   else
 762     return IN6_IS_ADDR_MULTICAST (&address->priv->addr.ipv6);
 763 }
 764
 765 /**
 766  * g_inet_address_get_is_mc_global:
 767  * @address: a #GInetAddress
 768  *
 769  * Tests whether @address is a global multicast address.
 770  *
 771  * Returns: %TRUE if @address is a global multicast address.
 772  *
 773  * Since: 2.22
 774  */
 775 gboolean
 776 g_inet_address_get_is_mc_global (GInetAddress *address)
 777 {
 778   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 779
 780   if (address->priv->family == AF_INET)
 781     return FALSE;
 782   else
 783     return IN6_IS_ADDR_MC_GLOBAL (&address->priv->addr.ipv6);
 784 }
 785
 786 /**
 787  * g_inet_address_get_is_mc_link_local:
 788  * @address: a #GInetAddress
 789  *
 790  * Tests whether @address is a link-local multicast address.
 791  *
 792  * Returns: %TRUE if @address is a link-local multicast address.
 793  *
 794  * Since: 2.22
 795  */
 796 gboolean
 797 g_inet_address_get_is_mc_link_local (GInetAddress *address)
 798 {
 799   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 800
 801   if (address->priv->family == AF_INET)
 802     return FALSE;
 803   else
 804     return IN6_IS_ADDR_MC_LINKLOCAL (&address->priv->addr.ipv6);
 805 }
 806
 807 /**
 808  * g_inet_address_get_is_mc_node_local:
 809  * @address: a #GInetAddress
 810  *
 811  * Tests whether @address is a node-local multicast address.
 812  *
 813  * Returns: %TRUE if @address is a node-local multicast address.
 814  *
 815  * Since: 2.22
 816  */
 817 gboolean
 818 g_inet_address_get_is_mc_node_local (GInetAddress *address)
 819 {
 820   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 821
 822   if (address->priv->family == AF_INET)
 823     return FALSE;
 824   else
 825     return IN6_IS_ADDR_MC_NODELOCAL (&address->priv->addr.ipv6);
 826 }
 827
 828 /**
 829  * g_inet_address_get_is_mc_org_local:
 830  * @address: a #GInetAddress
 831  *
 832  * Tests whether @address is an organization-local multicast address.
 833  *
 834  * Returns: %TRUE if @address is an organization-local multicast address.
 835  *
 836  * Since: 2.22
 837  */
 838 gboolean
 839 g_inet_address_get_is_mc_org_local  (GInetAddress *address)
 840 {
 841   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 842
 843   if (address->priv->family == AF_INET)
 844     return FALSE;
 845   else
 846     return IN6_IS_ADDR_MC_ORGLOCAL (&address->priv->addr.ipv6);
 847 }
 848
 849 /**
 850  * g_inet_address_get_is_mc_site_local:
 851  * @address: a #GInetAddress
 852  *
 853  * Tests whether @address is a site-local multicast address.
 854  *
 855  * Returns: %TRUE if @address is a site-local multicast address.
 856  *
 857  * Since: 2.22
 858  */
 859 gboolean
 860 g_inet_address_get_is_mc_site_local (GInetAddress *address)
 861 {
 862   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 863
 864   if (address->priv->family == AF_INET)
 865     return FALSE;
 866   else
 867     return IN6_IS_ADDR_MC_SITELOCAL (&address->priv->addr.ipv6);
 868 }
 869
 870 /**
 871  * g_inet_address_equal:
 872  * @address: A #GInetAddress.
 873  * @other_address: Another #GInetAddress.
 874  *
 875  * Checks if two #GInetAddress instances are equal, e.g. the same address.
 876  *
 877  * Returns: %TRUE if @address and @other_address are equal, %FALSE otherwise.
 878  *
 879  * Since: 2.30
 880  */
 881 gboolean
 882 g_inet_address_equal (GInetAddress *address,
 883                       GInetAddress *other_address)
 884 {
 885   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 886   g_return_val_if_fail (G_IS_INET_ADDRESS (other_address), FALSE);
 887
 888   if (g_inet_address_get_family (address) != g_inet_address_get_family (other_address))
 889     return FALSE;
 890
 891   if (memcmp (g_inet_address_to_bytes (address),
 892               g_inet_address_to_bytes (other_address),
 893               g_inet_address_get_native_size (address)) != 0)
 894     return FALSE;
 895
 896   return TRUE;
 897 }