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 #ifdef G_OS_WIN32
 405   struct sockaddr_storage sa;
 406   struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
 407   struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
 408   gint len;
 409 #else /* !G_OS_WIN32 */
 410   struct in_addr in_addr;
 411   struct in6_addr in6_addr;
 412 #endif
 413
 414   /* Make sure _g_networking_init() has been called */
 415   g_type_ensure (G_TYPE_INET_ADDRESS);
 416
 417 #ifdef G_OS_WIN32
 418   memset (&sa, 0, sizeof (sa));
 419   len = sizeof (sa);
 420   if (WSAStringToAddress ((LPTSTR) string, AF_INET, NULL, (LPSOCKADDR) &sa, &len) == 0)
 421     return g_inet_address_new_from_bytes ((guint8 *)&sin->sin_addr, AF_INET);
 422   else if (WSAStringToAddress ((LPTSTR) string, AF_INET6, NULL, (LPSOCKADDR) &sa, &len) == 0)
 423     return g_inet_address_new_from_bytes ((guint8 *)&sin6->sin6_addr, AF_INET6);
 424
 425 #else /* !G_OS_WIN32 */
 426
 427   if (inet_pton (AF_INET, string, &in_addr) > 0)
 428     return g_inet_address_new_from_bytes ((guint8 *)&in_addr, AF_INET);
 429   else if (inet_pton (AF_INET6, string, &in6_addr) > 0)
 430     return g_inet_address_new_from_bytes ((guint8 *)&in6_addr, AF_INET6);
 431 #endif
 432
 433   return NULL;
 434 }
 435
 436 #define G_INET_ADDRESS_FAMILY_IS_VALID(family) ((family) == AF_INET || (family) == AF_INET6)
 437
 438 /**
 439  * g_inet_address_new_from_bytes:
 440  * @bytes: (array) (element-type guint8): raw address data
 441  * @family: the address family of @bytes
 442  *
 443  * Creates a new #GInetAddress from the given @family and @bytes.
 444  * @bytes should be 4 bytes for %G_SOCKET_FAMILY_IPV4 and 16 bytes for
 445  * %G_SOCKET_FAMILY_IPV6.
 446  *
 447  * Returns: a new #GInetAddress corresponding to @family and @bytes.
 448  *
 449  * Since: 2.22
 450  */
 451 GInetAddress *
 452 g_inet_address_new_from_bytes (const guint8         *bytes,
 453                                GSocketFamily  family)
 454 {
 455   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 456
 457   return g_object_new (G_TYPE_INET_ADDRESS,
 458                        "family", family,
 459                        "bytes", bytes,
 460                        NULL);
 461 }
 462
 463 /**
 464  * g_inet_address_new_loopback:
 465  * @family: the address family
 466  *
 467  * Creates a #GInetAddress for the loopback address for @family.
 468  *
 469  * Returns: a new #GInetAddress corresponding to the loopback address
 470  * for @family.
 471  *
 472  * Since: 2.22
 473  */
 474 GInetAddress *
 475 g_inet_address_new_loopback (GSocketFamily family)
 476 {
 477   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 478
 479   if (family == AF_INET)
 480     {
 481       guint8 addr[4] = {127, 0, 0, 1};
 482
 483       return g_inet_address_new_from_bytes (addr, family);
 484     }
 485   else
 486     return g_inet_address_new_from_bytes (in6addr_loopback.s6_addr, family);
 487 }
 488
 489 /**
 490  * g_inet_address_new_any:
 491  * @family: the address family
 492  *
 493  * Creates a #GInetAddress for the "any" address (unassigned/"don't
 494  * care") for @family.
 495  *
 496  * Returns: a new #GInetAddress corresponding to the "any" address
 497  * for @family.
 498  *
 499  * Since: 2.22
 500  */
 501 GInetAddress *
 502 g_inet_address_new_any (GSocketFamily family)
 503 {
 504   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 505
 506   if (family == AF_INET)
 507     {
 508       guint8 addr[4] = {0, 0, 0, 0};
 509
 510       return g_inet_address_new_from_bytes (addr, family);
 511     }
 512   else
 513     return g_inet_address_new_from_bytes (in6addr_any.s6_addr, family);
 514 }
 515
 516
 517 /**
 518  * g_inet_address_to_string:
 519  * @address: a #GInetAddress
 520  *
 521  * Converts @address to string form.
 522  *
 523  * Returns: a representation of @address as a string, which should be
 524  * freed after use.
 525  *
 526  * Since: 2.22
 527  */
 528 gchar *
 529 g_inet_address_to_string (GInetAddress *address)
 530 {
 531   gchar buffer[INET6_ADDRSTRLEN];
 532 #ifdef G_OS_WIN32
 533   DWORD buflen = sizeof (buffer), addrlen;
 534   struct sockaddr_storage sa;
 535   struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
 536   struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
 537 #endif
 538
 539   g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
 540
 541 #ifdef G_OS_WIN32
 542   sa.ss_family = address->priv->family;
 543   if (address->priv->family == AF_INET)
 544     {
 545       addrlen = sizeof (*sin);
 546       memcpy (&sin->sin_addr, &address->priv->addr.ipv4,
 547               sizeof (sin->sin_addr));
 548       sin->sin_port = 0;
 549     }
 550   else
 551     {
 552       addrlen = sizeof (*sin6);
 553       memcpy (&sin6->sin6_addr, &address->priv->addr.ipv6,
 554               sizeof (sin6->sin6_addr));
 555       sin6->sin6_port = 0;
 556     }
 557   if (WSAAddressToString ((LPSOCKADDR) &sa, addrlen, NULL, buffer, &buflen) != 0)
 558     return NULL;
 559
 560 #else /* !G_OS_WIN32 */
 561
 562   if (address->priv->family == AF_INET)
 563     inet_ntop (AF_INET, &address->priv->addr.ipv4, buffer, sizeof (buffer));
 564   else
 565     inet_ntop (AF_INET6, &address->priv->addr.ipv6, buffer, sizeof (buffer));
 566 #endif
 567
 568   return g_strdup (buffer);
 569 }
 570
 571 /**
 572  * g_inet_address_to_bytes: (skip)
 573  * @address: a #GInetAddress
 574  *
 575  * Gets the raw binary address data from @address.
 576  *
 577  * Returns: a pointer to an internal array of the bytes in @address,
 578  * which should not be modified, stored, or freed. The size of this
 579  * array can be gotten with g_inet_address_get_native_size().
 580  *
 581  * Since: 2.22
 582  */
 583 const guint8 *
 584 g_inet_address_to_bytes (GInetAddress *address)
 585 {
 586   g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
 587
 588   return (guint8 *)&address->priv->addr;
 589 }
 590
 591 /**
 592  * g_inet_address_get_native_size:
 593  * @address: a #GInetAddress
 594  *
 595  * Gets the size of the native raw binary address for @address. This
 596  * is the size of the data that you get from g_inet_address_to_bytes().
 597  *
 598  * Returns: the number of bytes used for the native version of @address.
 599  *
 600  * Since: 2.22
 601  */
 602 gsize
 603 g_inet_address_get_native_size (GInetAddress *address)
 604 {
 605   if (address->priv->family == AF_INET)
 606     return sizeof (address->priv->addr.ipv4);
 607   return sizeof (address->priv->addr.ipv6);
 608 }
 609
 610 /**
 611  * g_inet_address_get_family:
 612  * @address: a #GInetAddress
 613  *
 614  * Gets @address's family
 615  *
 616  * Returns: @address's family
 617  *
 618  * Since: 2.22
 619  */
 620 GSocketFamily
 621 g_inet_address_get_family (GInetAddress *address)
 622 {
 623   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 624
 625   return address->priv->family;
 626 }
 627
 628 /**
 629  * g_inet_address_get_is_any:
 630  * @address: a #GInetAddress
 631  *
 632  * Tests whether @address is the "any" address for its family.
 633  *
 634  * Returns: %TRUE if @address is the "any" address for its family.
 635  *
 636  * Since: 2.22
 637  */
 638 gboolean
 639 g_inet_address_get_is_any (GInetAddress *address)
 640 {
 641   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 642
 643   if (address->priv->family == AF_INET)
 644     {
 645       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 646
 647       return addr4 == INADDR_ANY;
 648     }
 649   else
 650     return IN6_IS_ADDR_UNSPECIFIED (&address->priv->addr.ipv6);
 651 }
 652
 653 /**
 654  * g_inet_address_get_is_loopback:
 655  * @address: a #GInetAddress
 656  *
 657  * Tests whether @address is the loopback address for its family.
 658  *
 659  * Returns: %TRUE if @address is the loopback address for its family.
 660  *
 661  * Since: 2.22
 662  */
 663 gboolean
 664 g_inet_address_get_is_loopback (GInetAddress *address)
 665 {
 666   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 667
 668   if (address->priv->family == AF_INET)
 669     {
 670       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 671
 672       /* 127.0.0.0/8 */
 673       return ((addr4 & 0xff000000) == 0x7f000000);
 674     }
 675   else
 676     return IN6_IS_ADDR_LOOPBACK (&address->priv->addr.ipv6);
 677 }
 678
 679 /**
 680  * g_inet_address_get_is_link_local:
 681  * @address: a #GInetAddress
 682  *
 683  * Tests whether @address is a link-local address (that is, if it
 684  * identifies a host on a local network that is not connected to the
 685  * Internet).
 686  *
 687  * Returns: %TRUE if @address is a link-local address.
 688  *
 689  * Since: 2.22
 690  */
 691 gboolean
 692 g_inet_address_get_is_link_local (GInetAddress *address)
 693 {
 694   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 695
 696   if (address->priv->family == AF_INET)
 697     {
 698       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 699
 700       /* 169.254.0.0/16 */
 701       return ((addr4 & 0xffff0000) == 0xa9fe0000);
 702     }
 703   else
 704     return IN6_IS_ADDR_LINKLOCAL (&address->priv->addr.ipv6);
 705 }
 706
 707 /**
 708  * g_inet_address_get_is_site_local:
 709  * @address: a #GInetAddress
 710  *
 711  * Tests whether @address is a site-local address such as 10.0.0.1
 712  * (that is, the address identifies a host on a local network that can
 713  * not be reached directly from the Internet, but which may have
 714  * outgoing Internet connectivity via a NAT or firewall).
 715  *
 716  * Returns: %TRUE if @address is a site-local address.
 717  *
 718  * Since: 2.22
 719  */
 720 gboolean
 721 g_inet_address_get_is_site_local (GInetAddress *address)
 722 {
 723   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 724
 725   if (address->priv->family == AF_INET)
 726     {
 727       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 728
 729       /* 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 */
 730       return ((addr4 & 0xff000000) == 0x0a000000 ||
 731               (addr4 & 0xfff00000) == 0xac100000 ||
 732               (addr4 & 0xffff0000) == 0xc0a80000);
 733     }
 734   else
 735     return IN6_IS_ADDR_SITELOCAL (&address->priv->addr.ipv6);
 736 }
 737
 738 /**
 739  * g_inet_address_get_is_multicast:
 740  * @address: a #GInetAddress
 741  *
 742  * Tests whether @address is a multicast address.
 743  *
 744  * Returns: %TRUE if @address is a multicast address.
 745  *
 746  * Since: 2.22
 747  */
 748 gboolean
 749 g_inet_address_get_is_multicast (GInetAddress *address)
 750 {
 751   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 752
 753   if (address->priv->family == AF_INET)
 754     {
 755       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 756
 757       return IN_MULTICAST (addr4);
 758     }
 759   else
 760     return IN6_IS_ADDR_MULTICAST (&address->priv->addr.ipv6);
 761 }
 762
 763 /**
 764  * g_inet_address_get_is_mc_global:
 765  * @address: a #GInetAddress
 766  *
 767  * Tests whether @address is a global multicast address.
 768  *
 769  * Returns: %TRUE if @address is a global multicast address.
 770  *
 771  * Since: 2.22
 772  */
 773 gboolean
 774 g_inet_address_get_is_mc_global (GInetAddress *address)
 775 {
 776   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 777
 778   if (address->priv->family == AF_INET)
 779     return FALSE;
 780   else
 781     return IN6_IS_ADDR_MC_GLOBAL (&address->priv->addr.ipv6);
 782 }
 783
 784 /**
 785  * g_inet_address_get_is_mc_link_local:
 786  * @address: a #GInetAddress
 787  *
 788  * Tests whether @address is a link-local multicast address.
 789  *
 790  * Returns: %TRUE if @address is a link-local multicast address.
 791  *
 792  * Since: 2.22
 793  */
 794 gboolean
 795 g_inet_address_get_is_mc_link_local (GInetAddress *address)
 796 {
 797   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 798
 799   if (address->priv->family == AF_INET)
 800     return FALSE;
 801   else
 802     return IN6_IS_ADDR_MC_LINKLOCAL (&address->priv->addr.ipv6);
 803 }
 804
 805 /**
 806  * g_inet_address_get_is_mc_node_local:
 807  * @address: a #GInetAddress
 808  *
 809  * Tests whether @address is a node-local multicast address.
 810  *
 811  * Returns: %TRUE if @address is a node-local multicast address.
 812  *
 813  * Since: 2.22
 814  */
 815 gboolean
 816 g_inet_address_get_is_mc_node_local (GInetAddress *address)
 817 {
 818   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 819
 820   if (address->priv->family == AF_INET)
 821     return FALSE;
 822   else
 823     return IN6_IS_ADDR_MC_NODELOCAL (&address->priv->addr.ipv6);
 824 }
 825
 826 /**
 827  * g_inet_address_get_is_mc_org_local:
 828  * @address: a #GInetAddress
 829  *
 830  * Tests whether @address is an organization-local multicast address.
 831  *
 832  * Returns: %TRUE if @address is an organization-local multicast address.
 833  *
 834  * Since: 2.22
 835  */
 836 gboolean
 837 g_inet_address_get_is_mc_org_local  (GInetAddress *address)
 838 {
 839   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 840
 841   if (address->priv->family == AF_INET)
 842     return FALSE;
 843   else
 844     return IN6_IS_ADDR_MC_ORGLOCAL (&address->priv->addr.ipv6);
 845 }
 846
 847 /**
 848  * g_inet_address_get_is_mc_site_local:
 849  * @address: a #GInetAddress
 850  *
 851  * Tests whether @address is a site-local multicast address.
 852  *
 853  * Returns: %TRUE if @address is a site-local multicast address.
 854  *
 855  * Since: 2.22
 856  */
 857 gboolean
 858 g_inet_address_get_is_mc_site_local (GInetAddress *address)
 859 {
 860   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 861
 862   if (address->priv->family == AF_INET)
 863     return FALSE;
 864   else
 865     return IN6_IS_ADDR_MC_SITELOCAL (&address->priv->addr.ipv6);
 866 }
 867
 868 /**
 869  * g_inet_address_equal:
 870  * @address: A #GInetAddress.
 871  * @other_address: Another #GInetAddress.
 872  *
 873  * Checks if two #GInetAddress instances are equal, e.g. the same address.
 874  *
 875  * Returns: %TRUE if @address and @other_address are equal, %FALSE otherwise.
 876  *
 877  * Since: 2.30
 878  */
 879 gboolean
 880 g_inet_address_equal (GInetAddress *address,
 881                       GInetAddress *other_address)
 882 {
 883   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 884   g_return_val_if_fail (G_IS_INET_ADDRESS (other_address), FALSE);
 885
 886   if (g_inet_address_get_family (address) != g_inet_address_get_family (other_address))
 887     return FALSE;
 888
 889   if (memcmp (g_inet_address_to_bytes (address),
 890               g_inet_address_to_bytes (other_address),
 891               g_inet_address_get_native_size (address)) != 0)
 892     return FALSE;
 893
 894   return TRUE;
 895 }