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 G_DEFINE_TYPE_WITH_CODE (GInetAddress, g_inet_address, G_TYPE_OBJECT,
  60                          g_networking_init ();)
  61
  62 struct _GInetAddressPrivate
  63 {
  64   GSocketFamily family;
  65   union {
  66     struct in_addr ipv4;
  67     struct in6_addr ipv6;
  68   } addr;
  69 };
  70
  71 enum
  72 {
  73   PROP_0,
  74   PROP_FAMILY,
  75   PROP_BYTES,
  76   PROP_IS_ANY,
  77   PROP_IS_LOOPBACK,
  78   PROP_IS_LINK_LOCAL,
  79   PROP_IS_SITE_LOCAL,
  80   PROP_IS_MULTICAST,
  81   PROP_IS_MC_GLOBAL,
  82   PROP_IS_MC_LINK_LOCAL,
  83   PROP_IS_MC_NODE_LOCAL,
  84   PROP_IS_MC_ORG_LOCAL,
  85   PROP_IS_MC_SITE_LOCAL,
  86 };
  87
  88 static void
  89 g_inet_address_set_property (GObject      *object,
  90                              guint         prop_id,
  91                              const GValue *value,
  92                              GParamSpec   *pspec)
  93 {
  94   GInetAddress *address = G_INET_ADDRESS (object);
  95
  96   switch (prop_id)
  97     {
  98     case PROP_FAMILY:
  99       address->priv->family = g_value_get_enum (value);
 100       break;
 101
 102     case PROP_BYTES:
 103       memcpy (&address->priv->addr, g_value_get_pointer (value),
 104               address->priv->family == AF_INET ?
 105               sizeof (address->priv->addr.ipv4) :
 106               sizeof (address->priv->addr.ipv6));
 107       break;
 108
 109     default:
 110       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 111       break;
 112     }
 113
 114 }
 115
 116 static void
 117 g_inet_address_get_property (GObject    *object,
 118                              guint       prop_id,
 119                              GValue     *value,
 120                              GParamSpec *pspec)
 121 {
 122   GInetAddress *address = G_INET_ADDRESS (object);
 123
 124   switch (prop_id)
 125     {
 126     case PROP_FAMILY:
 127       g_value_set_enum (value, address->priv->family);
 128       break;
 129
 130     case PROP_BYTES:
 131       g_value_set_pointer (value, &address->priv->addr);
 132       break;
 133
 134     case PROP_IS_ANY:
 135       g_value_set_boolean (value, g_inet_address_get_is_any (address));
 136       break;
 137
 138     case PROP_IS_LOOPBACK:
 139       g_value_set_boolean (value, g_inet_address_get_is_loopback (address));
 140       break;
 141
 142     case PROP_IS_LINK_LOCAL:
 143       g_value_set_boolean (value, g_inet_address_get_is_link_local (address));
 144       break;
 145
 146     case PROP_IS_SITE_LOCAL:
 147       g_value_set_boolean (value, g_inet_address_get_is_site_local (address));
 148       break;
 149
 150     case PROP_IS_MULTICAST:
 151       g_value_set_boolean (value, g_inet_address_get_is_multicast (address));
 152       break;
 153
 154     case PROP_IS_MC_GLOBAL:
 155       g_value_set_boolean (value, g_inet_address_get_is_mc_global (address));
 156       break;
 157
 158     case PROP_IS_MC_LINK_LOCAL:
 159       g_value_set_boolean (value, g_inet_address_get_is_mc_link_local (address));
 160       break;
 161
 162     case PROP_IS_MC_NODE_LOCAL:
 163       g_value_set_boolean (value, g_inet_address_get_is_mc_node_local (address));
 164       break;
 165
 166     case PROP_IS_MC_ORG_LOCAL:
 167       g_value_set_boolean (value, g_inet_address_get_is_mc_org_local (address));
 168       break;
 169
 170     case PROP_IS_MC_SITE_LOCAL:
 171       g_value_set_boolean (value, g_inet_address_get_is_mc_site_local (address));
 172       break;
 173
 174     default:
 175       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 176     }
 177 }
 178
 179 static void
 180 g_inet_address_class_init (GInetAddressClass *klass)
 181 {
 182   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 183
 184   g_type_class_add_private (klass, sizeof (GInetAddressPrivate));
 185
 186   gobject_class->set_property = g_inet_address_set_property;
 187   gobject_class->get_property = g_inet_address_get_property;
 188
 189   g_object_class_install_property (gobject_class, PROP_FAMILY,
 190                                    g_param_spec_enum ("family",
 191                                                       P_("Address family"),
 192                                                       P_("The address family (IPv4 or IPv6)"),
 193                                                       G_TYPE_SOCKET_FAMILY,
 194                                                       G_SOCKET_FAMILY_INVALID,
 195                                                       G_PARAM_READWRITE |
 196                                                       G_PARAM_CONSTRUCT_ONLY |
 197                                                       G_PARAM_STATIC_STRINGS));
 198
 199   g_object_class_install_property (gobject_class, PROP_BYTES,
 200                                    g_param_spec_pointer ("bytes",
 201                                                          P_("Bytes"),
 202                                                          P_("The raw address data"),
 203                                                          G_PARAM_READWRITE |
 204                                                          G_PARAM_CONSTRUCT_ONLY |
 205                                                          G_PARAM_STATIC_STRINGS));
 206
 207   /**
 208    * GInetAddress:is-any:
 209    *
 210    * Whether this is the "any" address for its family.
 211    * See g_inet_address_get_is_any().
 212    *
 213    * Since: 2.22
 214    */
 215   g_object_class_install_property (gobject_class, PROP_IS_ANY,
 216                                    g_param_spec_boolean ("is-any",
 217                                                          P_("Is any"),
 218                                                          P_("Whether this is the \"any\" address for its family"),
 219                                                          FALSE,
 220                                                          G_PARAM_READABLE |
 221                                                          G_PARAM_STATIC_STRINGS));
 222
 223   /**
 224    * GInetAddress:is-link-local:
 225    *
 226    * Whether this is a link-local address.
 227    * See g_inet_address_get_is_link_local().
 228    *
 229    * Since: 2.22
 230    */
 231   g_object_class_install_property (gobject_class, PROP_IS_LINK_LOCAL,
 232                                    g_param_spec_boolean ("is-link-local",
 233                                                          P_("Is link-local"),
 234                                                          P_("Whether this is a link-local address"),
 235                                                          FALSE,
 236                                                          G_PARAM_READABLE |
 237                                                          G_PARAM_STATIC_STRINGS));
 238
 239   /**
 240    * GInetAddress:is-loopback:
 241    *
 242    * Whether this is the loopback address for its family.
 243    * See g_inet_address_get_is_loopback().
 244    *
 245    * Since: 2.22
 246    */
 247   g_object_class_install_property (gobject_class, PROP_IS_LOOPBACK,
 248                                    g_param_spec_boolean ("is-loopback",
 249                                                          P_("Is loopback"),
 250                                                          P_("Whether this is the loopback address for its family"),
 251                                                          FALSE,
 252                                                          G_PARAM_READABLE |
 253                                                          G_PARAM_STATIC_STRINGS));
 254
 255   /**
 256    * GInetAddress:is-site-local:
 257    *
 258    * Whether this is a site-local address.
 259    * See g_inet_address_get_is_loopback().
 260    *
 261    * Since: 2.22
 262    */
 263   g_object_class_install_property (gobject_class, PROP_IS_SITE_LOCAL,
 264                                    g_param_spec_boolean ("is-site-local",
 265                                                          P_("Is site-local"),
 266                                                          P_("Whether this is a site-local address"),
 267                                                          FALSE,
 268                                                          G_PARAM_READABLE |
 269                                                          G_PARAM_STATIC_STRINGS));
 270
 271   /**
 272    * GInetAddress:is-multicast:
 273    *
 274    * Whether this is a multicast address.
 275    * See g_inet_address_get_is_multicast().
 276    *
 277    * Since: 2.22
 278    */
 279   g_object_class_install_property (gobject_class, PROP_IS_MULTICAST,
 280                                    g_param_spec_boolean ("is-multicast",
 281                                                          P_("Is multicast"),
 282                                                          P_("Whether this is a multicast address"),
 283                                                          FALSE,
 284                                                          G_PARAM_READABLE |
 285                                                          G_PARAM_STATIC_STRINGS));
 286
 287   /**
 288    * GInetAddress:is-mc-global:
 289    *
 290    * Whether this is a global multicast address.
 291    * See g_inet_address_get_is_mc_global().
 292    *
 293    * Since: 2.22
 294    */
 295   g_object_class_install_property (gobject_class, PROP_IS_MC_GLOBAL,
 296                                    g_param_spec_boolean ("is-mc-global",
 297                                                          P_("Is multicast global"),
 298                                                          P_("Whether this is a global multicast address"),
 299                                                          FALSE,
 300                                                          G_PARAM_READABLE |
 301                                                          G_PARAM_STATIC_STRINGS));
 302
 303
 304   /**
 305    * GInetAddress:is-mc-link-local:
 306    *
 307    * Whether this is a link-local multicast address.
 308    * See g_inet_address_get_is_mc_link_local().
 309    *
 310    * Since: 2.22
 311    */
 312   g_object_class_install_property (gobject_class, PROP_IS_MC_LINK_LOCAL,
 313                                    g_param_spec_boolean ("is-mc-link-local",
 314                                                          P_("Is multicast link-local"),
 315                                                          P_("Whether this is a link-local multicast address"),
 316                                                          FALSE,
 317                                                          G_PARAM_READABLE |
 318                                                          G_PARAM_STATIC_STRINGS));
 319
 320   /**
 321    * GInetAddress:is-mc-node-local:
 322    *
 323    * Whether this is a node-local multicast address.
 324    * See g_inet_address_get_is_mc_node_local().
 325    *
 326    * Since: 2.22
 327    */
 328   g_object_class_install_property (gobject_class, PROP_IS_MC_NODE_LOCAL,
 329                                    g_param_spec_boolean ("is-mc-node-local",
 330                                                          P_("Is multicast node-local"),
 331                                                          P_("Whether this is a node-local multicast address"),
 332                                                          FALSE,
 333                                                          G_PARAM_READABLE |
 334                                                          G_PARAM_STATIC_STRINGS));
 335
 336   /**
 337    * GInetAddress:is-mc-org-local:
 338    *
 339    * Whether this is an organization-local multicast address.
 340    * See g_inet_address_get_is_mc_org_local().
 341    *
 342    * Since: 2.22
 343    */
 344   g_object_class_install_property (gobject_class, PROP_IS_MC_ORG_LOCAL,
 345                                    g_param_spec_boolean ("is-mc-org-local",
 346                                                          P_("Is multicast org-local"),
 347                                                          P_("Whether this is an organization-local multicast address"),
 348                                                          FALSE,
 349                                                          G_PARAM_READABLE |
 350                                                          G_PARAM_STATIC_STRINGS));
 351
 352   /**
 353    * GInetAddress:is-mc-site-local:
 354    *
 355    * Whether this is a site-local multicast address.
 356    * See g_inet_address_get_is_mc_site_local().
 357    *
 358    * Since: 2.22
 359    */
 360   g_object_class_install_property (gobject_class, PROP_IS_MC_SITE_LOCAL,
 361                                    g_param_spec_boolean ("is-mc-site-local",
 362                                                          P_("Is multicast site-local"),
 363                                                          P_("Whether this is a site-local multicast address"),
 364                                                          FALSE,
 365                                                          G_PARAM_READABLE |
 366                                                          G_PARAM_STATIC_STRINGS));
 367 }
 368
 369 static void
 370 g_inet_address_init (GInetAddress *address)
 371 {
 372   address->priv = G_TYPE_INSTANCE_GET_PRIVATE (address,
 373                                                G_TYPE_INET_ADDRESS,
 374                                                GInetAddressPrivate);
 375 }
 376
 377 /**
 378  * g_inet_address_new_from_string:
 379  * @string: a string representation of an IP address
 380  *
 381  * Parses @string as an IP address and creates a new #GInetAddress.
 382  *
 383  * Returns: a new #GInetAddress corresponding to @string, or %NULL if
 384  * @string could not be parsed.
 385  *
 386  * Since: 2.22
 387  */
 388 GInetAddress *
 389 g_inet_address_new_from_string (const gchar *string)
 390 {
 391 #ifdef G_OS_WIN32
 392   struct sockaddr_storage sa;
 393   struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
 394   struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
 395   gint len;
 396 #else /* !G_OS_WIN32 */
 397   struct in_addr in_addr;
 398   struct in6_addr in6_addr;
 399 #endif
 400
 401   /* If this GInetAddress is the first networking-related object to be
 402    * created, then we won't have called g_networking_init() yet at
 403    * this point.
 404    */
 405   g_networking_init ();
 406
 407 #ifdef G_OS_WIN32
 408   memset (&sa, 0, sizeof (sa));
 409   len = sizeof (sa);
 410   if (WSAStringToAddress ((LPTSTR) string, AF_INET, NULL, (LPSOCKADDR) &sa, &len) == 0)
 411     return g_inet_address_new_from_bytes ((guint8 *)&sin->sin_addr, AF_INET);
 412   else if (WSAStringToAddress ((LPTSTR) string, AF_INET6, NULL, (LPSOCKADDR) &sa, &len) == 0)
 413     return g_inet_address_new_from_bytes ((guint8 *)&sin6->sin6_addr, AF_INET6);
 414
 415 #else /* !G_OS_WIN32 */
 416
 417   if (inet_pton (AF_INET, string, &in_addr) > 0)
 418     return g_inet_address_new_from_bytes ((guint8 *)&in_addr, AF_INET);
 419   else if (inet_pton (AF_INET6, string, &in6_addr) > 0)
 420     return g_inet_address_new_from_bytes ((guint8 *)&in6_addr, AF_INET6);
 421 #endif
 422
 423   return NULL;
 424 }
 425
 426 #define G_INET_ADDRESS_FAMILY_IS_VALID(family) ((family) == AF_INET || (family) == AF_INET6)
 427
 428 /**
 429  * g_inet_address_new_from_bytes:
 430  * @bytes: (array) (element-type guint8): raw address data
 431  * @family: the address family of @bytes
 432  *
 433  * Creates a new #GInetAddress from the given @family and @bytes.
 434  * @bytes should be 4 bytes for %G_SOCKET_FAMILY_IPV4 and 16 bytes for
 435  * %G_SOCKET_FAMILY_IPV6.
 436  *
 437  * Returns: a new #GInetAddress corresponding to @family and @bytes.
 438  *
 439  * Since: 2.22
 440  */
 441 GInetAddress *
 442 g_inet_address_new_from_bytes (const guint8         *bytes,
 443                                GSocketFamily  family)
 444 {
 445   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 446
 447   return g_object_new (G_TYPE_INET_ADDRESS,
 448                        "family", family,
 449                        "bytes", bytes,
 450                        NULL);
 451 }
 452
 453 /**
 454  * g_inet_address_new_loopback:
 455  * @family: the address family
 456  *
 457  * Creates a #GInetAddress for the loopback address for @family.
 458  *
 459  * Returns: a new #GInetAddress corresponding to the loopback address
 460  * for @family.
 461  *
 462  * Since: 2.22
 463  */
 464 GInetAddress *
 465 g_inet_address_new_loopback (GSocketFamily family)
 466 {
 467   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 468
 469   if (family == AF_INET)
 470     {
 471       guint8 addr[4] = {127, 0, 0, 1};
 472
 473       return g_inet_address_new_from_bytes (addr, family);
 474     }
 475   else
 476     return g_inet_address_new_from_bytes (in6addr_loopback.s6_addr, family);
 477 }
 478
 479 /**
 480  * g_inet_address_new_any:
 481  * @family: the address family
 482  *
 483  * Creates a #GInetAddress for the "any" address (unassigned/"don't
 484  * care") for @family.
 485  *
 486  * Returns: a new #GInetAddress corresponding to the "any" address
 487  * for @family.
 488  *
 489  * Since: 2.22
 490  */
 491 GInetAddress *
 492 g_inet_address_new_any (GSocketFamily family)
 493 {
 494   g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
 495
 496   if (family == AF_INET)
 497     {
 498       guint8 addr[4] = {0, 0, 0, 0};
 499
 500       return g_inet_address_new_from_bytes (addr, family);
 501     }
 502   else
 503     return g_inet_address_new_from_bytes (in6addr_any.s6_addr, family);
 504 }
 505
 506
 507 /**
 508  * g_inet_address_to_string:
 509  * @address: a #GInetAddress
 510  *
 511  * Converts @address to string form.
 512  *
 513  * Returns: a representation of @address as a string, which should be
 514  * freed after use.
 515  *
 516  * Since: 2.22
 517  */
 518 gchar *
 519 g_inet_address_to_string (GInetAddress *address)
 520 {
 521   gchar buffer[INET6_ADDRSTRLEN];
 522 #ifdef G_OS_WIN32
 523   DWORD buflen = sizeof (buffer), addrlen;
 524   struct sockaddr_storage sa;
 525   struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
 526   struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
 527 #endif
 528
 529   g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
 530
 531 #ifdef G_OS_WIN32
 532   sa.ss_family = address->priv->family;
 533   if (address->priv->family == AF_INET)
 534     {
 535       addrlen = sizeof (*sin);
 536       memcpy (&sin->sin_addr, &address->priv->addr.ipv4,
 537               sizeof (sin->sin_addr));
 538       sin->sin_port = 0;
 539     }
 540   else
 541     {
 542       addrlen = sizeof (*sin6);
 543       memcpy (&sin6->sin6_addr, &address->priv->addr.ipv6,
 544               sizeof (sin6->sin6_addr));
 545       sin6->sin6_port = 0;
 546     }
 547   if (WSAAddressToString ((LPSOCKADDR) &sa, addrlen, NULL, buffer, &buflen) != 0)
 548     return NULL;
 549
 550 #else /* !G_OS_WIN32 */
 551
 552   if (address->priv->family == AF_INET)
 553     inet_ntop (AF_INET, &address->priv->addr.ipv4, buffer, sizeof (buffer));
 554   else
 555     inet_ntop (AF_INET6, &address->priv->addr.ipv6, buffer, sizeof (buffer));
 556 #endif
 557
 558   return g_strdup (buffer);
 559 }
 560
 561 /**
 562  * g_inet_address_to_bytes: (skip)
 563  * @address: a #GInetAddress
 564  *
 565  * Gets the raw binary address data from @address.
 566  *
 567  * Returns: a pointer to an internal array of the bytes in @address,
 568  * which should not be modified, stored, or freed. The size of this
 569  * array can be gotten with g_inet_address_get_native_size().
 570  *
 571  * Since: 2.22
 572  */
 573 const guint8 *
 574 g_inet_address_to_bytes (GInetAddress *address)
 575 {
 576   g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
 577
 578   return (guint8 *)&address->priv->addr;
 579 }
 580
 581 /**
 582  * g_inet_address_get_native_size:
 583  * @address: a #GInetAddress
 584  *
 585  * Gets the size of the native raw binary address for @address. This
 586  * is the size of the data that you get from g_inet_address_to_bytes().
 587  *
 588  * Returns: the number of bytes used for the native version of @address.
 589  *
 590  * Since: 2.22
 591  */
 592 gsize
 593 g_inet_address_get_native_size (GInetAddress *address)
 594 {
 595   if (address->priv->family == AF_INET)
 596     return sizeof (address->priv->addr.ipv4);
 597   return sizeof (address->priv->addr.ipv6);
 598 }
 599
 600 /**
 601  * g_inet_address_get_family:
 602  * @address: a #GInetAddress
 603  *
 604  * Gets @address's family
 605  *
 606  * Returns: @address's family
 607  *
 608  * Since: 2.22
 609  */
 610 GSocketFamily
 611 g_inet_address_get_family (GInetAddress *address)
 612 {
 613   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 614
 615   return address->priv->family;
 616 }
 617
 618 /**
 619  * g_inet_address_get_is_any:
 620  * @address: a #GInetAddress
 621  *
 622  * Tests whether @address is the "any" address for its family.
 623  *
 624  * Returns: %TRUE if @address is the "any" address for its family.
 625  *
 626  * Since: 2.22
 627  */
 628 gboolean
 629 g_inet_address_get_is_any (GInetAddress *address)
 630 {
 631   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 632
 633   if (address->priv->family == AF_INET)
 634     {
 635       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 636
 637       return addr4 == INADDR_ANY;
 638     }
 639   else
 640     return IN6_IS_ADDR_UNSPECIFIED (&address->priv->addr.ipv6);
 641 }
 642
 643 /**
 644  * g_inet_address_get_is_loopback:
 645  * @address: a #GInetAddress
 646  *
 647  * Tests whether @address is the loopback address for its family.
 648  *
 649  * Returns: %TRUE if @address is the loopback address for its family.
 650  *
 651  * Since: 2.22
 652  */
 653 gboolean
 654 g_inet_address_get_is_loopback (GInetAddress *address)
 655 {
 656   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 657
 658   if (address->priv->family == AF_INET)
 659     {
 660       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 661
 662       /* 127.0.0.0/8 */
 663       return ((addr4 & 0xff000000) == 0x7f000000);
 664     }
 665   else
 666     return IN6_IS_ADDR_LOOPBACK (&address->priv->addr.ipv6);
 667 }
 668
 669 /**
 670  * g_inet_address_get_is_link_local:
 671  * @address: a #GInetAddress
 672  *
 673  * Tests whether @address is a link-local address (that is, if it
 674  * identifies a host on a local network that is not connected to the
 675  * Internet).
 676  *
 677  * Returns: %TRUE if @address is a link-local address.
 678  *
 679  * Since: 2.22
 680  */
 681 gboolean
 682 g_inet_address_get_is_link_local (GInetAddress *address)
 683 {
 684   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 685
 686   if (address->priv->family == AF_INET)
 687     {
 688       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 689
 690       /* 169.254.0.0/16 */
 691       return ((addr4 & 0xffff0000) == 0xa9fe0000);
 692     }
 693   else
 694     return IN6_IS_ADDR_LINKLOCAL (&address->priv->addr.ipv6);
 695 }
 696
 697 /**
 698  * g_inet_address_get_is_site_local:
 699  * @address: a #GInetAddress
 700  *
 701  * Tests whether @address is a site-local address such as 10.0.0.1
 702  * (that is, the address identifies a host on a local network that can
 703  * not be reached directly from the Internet, but which may have
 704  * outgoing Internet connectivity via a NAT or firewall).
 705  *
 706  * Returns: %TRUE if @address is a site-local address.
 707  *
 708  * Since: 2.22
 709  */
 710 gboolean
 711 g_inet_address_get_is_site_local (GInetAddress *address)
 712 {
 713   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 714
 715   if (address->priv->family == AF_INET)
 716     {
 717       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 718
 719       /* 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 */
 720       return ((addr4 & 0xff000000) == 0x0a000000 ||
 721               (addr4 & 0xfff00000) == 0xac100000 ||
 722               (addr4 & 0xffff0000) == 0xc0a80000);
 723     }
 724   else
 725     return IN6_IS_ADDR_SITELOCAL (&address->priv->addr.ipv6);
 726 }
 727
 728 /**
 729  * g_inet_address_get_is_multicast:
 730  * @address: a #GInetAddress
 731  *
 732  * Tests whether @address is a multicast address.
 733  *
 734  * Returns: %TRUE if @address is a multicast address.
 735  *
 736  * Since: 2.22
 737  */
 738 gboolean
 739 g_inet_address_get_is_multicast (GInetAddress *address)
 740 {
 741   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 742
 743   if (address->priv->family == AF_INET)
 744     {
 745       guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
 746
 747       return IN_MULTICAST (addr4);
 748     }
 749   else
 750     return IN6_IS_ADDR_MULTICAST (&address->priv->addr.ipv6);
 751 }
 752
 753 /**
 754  * g_inet_address_get_is_mc_global:
 755  * @address: a #GInetAddress
 756  *
 757  * Tests whether @address is a global multicast address.
 758  *
 759  * Returns: %TRUE if @address is a global multicast address.
 760  *
 761  * Since: 2.22
 762  */
 763 gboolean
 764 g_inet_address_get_is_mc_global (GInetAddress *address)
 765 {
 766   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 767
 768   if (address->priv->family == AF_INET)
 769     return FALSE;
 770   else
 771     return IN6_IS_ADDR_MC_GLOBAL (&address->priv->addr.ipv6);
 772 }
 773
 774 /**
 775  * g_inet_address_get_is_mc_link_local:
 776  * @address: a #GInetAddress
 777  *
 778  * Tests whether @address is a link-local multicast address.
 779  *
 780  * Returns: %TRUE if @address is a link-local multicast address.
 781  *
 782  * Since: 2.22
 783  */
 784 gboolean
 785 g_inet_address_get_is_mc_link_local (GInetAddress *address)
 786 {
 787   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 788
 789   if (address->priv->family == AF_INET)
 790     return FALSE;
 791   else
 792     return IN6_IS_ADDR_MC_LINKLOCAL (&address->priv->addr.ipv6);
 793 }
 794
 795 /**
 796  * g_inet_address_get_is_mc_node_local:
 797  * @address: a #GInetAddress
 798  *
 799  * Tests whether @address is a node-local multicast address.
 800  *
 801  * Returns: %TRUE if @address is a node-local multicast address.
 802  *
 803  * Since: 2.22
 804  */
 805 gboolean
 806 g_inet_address_get_is_mc_node_local (GInetAddress *address)
 807 {
 808   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 809
 810   if (address->priv->family == AF_INET)
 811     return FALSE;
 812   else
 813     return IN6_IS_ADDR_MC_NODELOCAL (&address->priv->addr.ipv6);
 814 }
 815
 816 /**
 817  * g_inet_address_get_is_mc_org_local:
 818  * @address: a #GInetAddress
 819  *
 820  * Tests whether @address is an organization-local multicast address.
 821  *
 822  * Returns: %TRUE if @address is an organization-local multicast address.
 823  *
 824  * Since: 2.22
 825  */
 826 gboolean
 827 g_inet_address_get_is_mc_org_local  (GInetAddress *address)
 828 {
 829   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 830
 831   if (address->priv->family == AF_INET)
 832     return FALSE;
 833   else
 834     return IN6_IS_ADDR_MC_ORGLOCAL (&address->priv->addr.ipv6);
 835 }
 836
 837 /**
 838  * g_inet_address_get_is_mc_site_local:
 839  * @address: a #GInetAddress
 840  *
 841  * Tests whether @address is a site-local multicast address.
 842  *
 843  * Returns: %TRUE if @address is a site-local multicast address.
 844  *
 845  * Since: 2.22
 846  */
 847 gboolean
 848 g_inet_address_get_is_mc_site_local (GInetAddress *address)
 849 {
 850   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 851
 852   if (address->priv->family == AF_INET)
 853     return FALSE;
 854   else
 855     return IN6_IS_ADDR_MC_SITELOCAL (&address->priv->addr.ipv6);
 856 }
 857
 858 /**
 859  * g_inet_address_equal:
 860  * @address: A #GInetAddress.
 861  * @other_address: Another #GInetAddress.
 862  *
 863  * Checks if two #GInetAddress instances are equal, e.g. the same address.
 864  *
 865  * Returns: %TRUE if @address and @other_address are equal, %FALSE otherwise.
 866  *
 867  * Since: 2.30
 868  */
 869 gboolean
 870 g_inet_address_equal (GInetAddress *address,
 871                       GInetAddress *other_address)
 872 {
 873   g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
 874   g_return_val_if_fail (G_IS_INET_ADDRESS (other_address), FALSE);
 875
 876   if (g_inet_address_get_family (address) != g_inet_address_get_family (other_address))
 877     return FALSE;
 878
 879   if (memcmp (g_inet_address_to_bytes (address),
 880               g_inet_address_to_bytes (other_address),
 881               g_inet_address_get_native_size (address)) != 0)
 882     return FALSE;
 883
 884   return TRUE;
 885 }