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d80e12104f
glib/gio/ginetaddress.c
Alexander Larsson d80e12104f Ensure we're actually initializing the winsock library 
It turns out that just calling g_inet_address_get_type() isn't
enough, since its marked G_GNUC_CONST, so the call is optimized
away. If we assign the return value to a volatile location we ensure
it is called.
2009-04-29 12:19:57 +02:00

757 lines
23 KiB
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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2008 Christian Kellner, Samuel Cormier-Iijima
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors: Christian Kellner <gicmo@gnome.org>
* Samuel Cormier-Iijima <sciyoshi@gmail.com>
*/
#include <config.h>
#include <string.h>
#include <glib.h>
#include "ginetaddress.h"
#include "gioenums.h"
#include "gioenumtypes.h"
#include "glibintl.h"
#include "gnetworkingprivate.h"
#include "gioalias.h"
/**
* SECTION:ginetaddress
* @short_description: An IPv4/IPv6 address
*
* #GInetAddress represents an IPv4 or IPv6 internet address. Use
* g_resolver_lookup_by_name() or g_resolver_lookup_by_name_async() to
* look up the #GInetAddress for a hostname. Use
* g_resolver_lookup_by_address() or
* g_resolver_lookup_by_address_async() to look up the hostname for a
* #GInetAddress.
*
* To actually connect to a remote host, you will need a
* #GInetSocketAddress (which includes a #GInetAddress as well as a
* port number).
**/
/**
* GInetAddress:
*
* An IPv4 or IPv6 internet address.
**/
/* Networking initialization function, called from inside the g_once of
* g_inet_address_get_type()
*/
static void
_g_networking_init (void)
{
#ifdef G_OS_WIN32
WSADATA wsadata;
if (WSAStartup (MAKEWORD (2, 0), &wsadata) != 0)
g_error ("Windows Sockets could not be initialized");
#endif
}
G_DEFINE_TYPE_WITH_CODE (GInetAddress, g_inet_address, G_TYPE_OBJECT,
_g_networking_init ();)
struct _GInetAddressPrivate
{
GSocketFamily family;
union {
struct in_addr ipv4;
struct in6_addr ipv6;
} addr;
};
enum
{
PROP_0,
PROP_FAMILY,
PROP_BYTES,
PROP_IS_ANY,
PROP_IS_LOOPBACK,
PROP_IS_LINK_LOCAL,
PROP_IS_SITE_LOCAL,
PROP_IS_MULTICAST,
PROP_IS_MC_GLOBAL,
PROP_IS_MC_LINK_LOCAL,
PROP_IS_MC_NODE_LOCAL,
PROP_IS_MC_ORG_LOCAL,
PROP_IS_MC_SITE_LOCAL,
};
static void
g_inet_address_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GInetAddress *address = G_INET_ADDRESS (object);
switch (prop_id)
{
case PROP_FAMILY:
address->priv->family = g_value_get_enum (value);
break;
case PROP_BYTES:
memcpy (&address->priv->addr, g_value_get_pointer (value),
address->priv->family == AF_INET ?
sizeof (address->priv->addr.ipv4) :
sizeof (address->priv->addr.ipv6));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_inet_address_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GInetAddress *address = G_INET_ADDRESS (object);
switch (prop_id)
{
case PROP_FAMILY:
g_value_set_enum (value, address->priv->family);
break;
case PROP_BYTES:
g_value_set_pointer (value, &address->priv->addr);
break;
case PROP_IS_ANY:
g_value_set_boolean (value, g_inet_address_get_is_any (address));
break;
case PROP_IS_LOOPBACK:
g_value_set_boolean (value, g_inet_address_get_is_loopback (address));
break;
case PROP_IS_LINK_LOCAL:
g_value_set_boolean (value, g_inet_address_get_is_link_local (address));
break;
case PROP_IS_SITE_LOCAL:
g_value_set_boolean (value, g_inet_address_get_is_site_local (address));
break;
case PROP_IS_MULTICAST:
g_value_set_boolean (value, g_inet_address_get_is_multicast (address));
break;
case PROP_IS_MC_GLOBAL:
g_value_set_boolean (value, g_inet_address_get_is_mc_global (address));
break;
case PROP_IS_MC_LINK_LOCAL:
g_value_set_boolean (value, g_inet_address_get_is_mc_link_local (address));
break;
case PROP_IS_MC_NODE_LOCAL:
g_value_set_boolean (value, g_inet_address_get_is_mc_node_local (address));
break;
case PROP_IS_MC_ORG_LOCAL:
g_value_set_boolean (value, g_inet_address_get_is_mc_org_local (address));
break;
case PROP_IS_MC_SITE_LOCAL:
g_value_set_boolean (value, g_inet_address_get_is_mc_site_local (address));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
g_inet_address_class_init (GInetAddressClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GInetAddressPrivate));
gobject_class->set_property = g_inet_address_set_property;
gobject_class->get_property = g_inet_address_get_property;
g_object_class_install_property (gobject_class, PROP_FAMILY,
g_param_spec_enum ("family",
P_("Address family"),
P_("The address family (IPv4 or IPv6)"),
G_TYPE_SOCKET_FAMILY,
G_SOCKET_FAMILY_INVALID,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_BYTES,
g_param_spec_pointer ("bytes",
P_("Bytes"),
P_("The raw address data"),
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_ANY,
g_param_spec_boolean ("is-any",
P_("Is any"),
P_("See g_inet_address_get_is_any()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_LINK_LOCAL,
g_param_spec_boolean ("is-link-local",
P_("Is link-local"),
P_("See g_inet_address_get_is_link_local()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_LOOPBACK,
g_param_spec_boolean ("is-loopback",
P_("Is loopback"),
P_("See g_inet_address_get_is_loopback()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_SITE_LOCAL,
g_param_spec_boolean ("is-site-local",
P_("Is site-local"),
P_("See g_inet_address_get_is_site_local()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_MULTICAST,
g_param_spec_boolean ("is-multicast",
P_("Is multicast"),
P_("See g_inet_address_get_is_multicast()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_MC_GLOBAL,
g_param_spec_boolean ("is-mc-global",
P_("Is multicast global"),
P_("See g_inet_address_get_is_mc_global()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_MC_LINK_LOCAL,
g_param_spec_boolean ("is-mc-link-local",
P_("Is multicast link-local"),
P_("See g_inet_address_get_is_mc_link_local()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_MC_NODE_LOCAL,
g_param_spec_boolean ("is-mc-node-local",
P_("Is multicast node-local"),
P_("See g_inet_address_get_is_mc_node_local()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_MC_ORG_LOCAL,
g_param_spec_boolean ("is-mc-org-local",
P_("Is multicast org-local"),
P_("See g_inet_address_get_is_mc_org_local()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
g_object_class_install_property (gobject_class, PROP_IS_MC_SITE_LOCAL,
g_param_spec_boolean ("is-mc-site-local",
P_("Is multicast site-local"),
P_("See g_inet_address_get_is_mc_site_local()"),
FALSE,
G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NAME));
}
static void
g_inet_address_init (GInetAddress *address)
{
address->priv = G_TYPE_INSTANCE_GET_PRIVATE (address,
G_TYPE_INET_ADDRESS,
GInetAddressPrivate);
}
/**
* g_inet_address_new_from_string:
* @string: a string representation of an IP address
*
* Parses @string as an IP address and creates a new #GInetAddress.
*
* Returns: a new #GInetAddress corresponding to @string, or %NULL if
* @string could not be parsed.
*
* Since: 2.22
*/
GInetAddress *
g_inet_address_new_from_string (const gchar *string)
{
#ifdef G_OS_WIN32
struct sockaddr_storage sa;
struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
volatile GType type;
gint len;
#else /* !G_OS_WIN32 */
struct in_addr in_addr;
struct in6_addr in6_addr;
#endif
/* Make sure _g_networking_init() has been called */
type = g_inet_address_get_type ();
#ifdef G_OS_WIN32
memset (&sa, 0, sizeof (sa));
len = sizeof (sa);
if (WSAStringToAddress ((LPTSTR) string, AF_INET, NULL, (LPSOCKADDR) &sa, &len) == 0)
return g_inet_address_new_from_bytes ((guint8 *)&sin->sin_addr, AF_INET);
else if (WSAStringToAddress ((LPTSTR) string, AF_INET6, NULL, (LPSOCKADDR) &sa, &len) == 0)
return g_inet_address_new_from_bytes ((guint8 *)&sin6->sin6_addr, AF_INET6);
#else /* !G_OS_WIN32 */
if (inet_pton (AF_INET, string, &in_addr) > 0)
return g_inet_address_new_from_bytes ((guint8 *)&in_addr, AF_INET);
else if (inet_pton (AF_INET6, string, &in6_addr) > 0)
return g_inet_address_new_from_bytes ((guint8 *)&in6_addr, AF_INET6);
#endif
return NULL;
}
#define G_INET_ADDRESS_FAMILY_IS_VALID(family) ((family) == AF_INET || (family) == AF_INET6)
/**
* g_inet_address_new_from_bytes:
* @bytes: raw address data
* @family: the address family of @bytes
*
* Creates a new #GInetAddress from the given @family and @bytes.
* @bytes should be 4 bytes for %G_INET_ADDRESS_IPV4 and 16 bytes for
* %G_INET_ADDRESS_IPV6.
*
* Returns: a new #GInetAddress corresponding to @family and @bytes.
*
* Since: 2.22
*/
GInetAddress *
g_inet_address_new_from_bytes (const guint8 *bytes,
GSocketFamily family)
{
g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
return g_object_new (G_TYPE_INET_ADDRESS,
"family", family,
"bytes", bytes,
NULL);
}
/**
* g_inet_address_new_loopback:
* @family: the address family
*
* Creates a #GInetAddress for the loopback address for @family.
*
* Returns: a new #GInetAddress corresponding to the loopback address
* for @family.
*
* Since: 2.22
*/
GInetAddress *
g_inet_address_new_loopback (GSocketFamily family)
{
g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
if (family == AF_INET)
{
guint8 addr[4] = {127, 0, 0, 1};
return g_inet_address_new_from_bytes (addr, family);
}
else
return g_inet_address_new_from_bytes (in6addr_loopback.s6_addr, family);
}
/**
* g_inet_address_new_any:
* @family: the address family
*
* Creates a #GInetAddress for the "any" address (unassigned/"don't
* care") for @family.
*
* Returns: a new #GInetAddress corresponding to the "any" address
* for @family.
*
* Since: 2.22
*/
GInetAddress *
g_inet_address_new_any (GSocketFamily family)
{
g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL);
if (family == AF_INET)
{
guint8 addr[4] = {0, 0, 0, 0};
return g_inet_address_new_from_bytes (addr, family);
}
else
return g_inet_address_new_from_bytes (in6addr_any.s6_addr, family);
}
/**
* g_inet_address_to_string:
* @address: a #GInetAddress
*
* Converts @address to string form.
*
* Returns: a representation of @address as a string, which should be
* freed after use.
*
* Since: 2.22
*/
gchar *
g_inet_address_to_string (GInetAddress *address)
{
gchar buffer[INET6_ADDRSTRLEN];
#ifdef G_OS_WIN32
DWORD buflen = sizeof (buffer), addrlen;
struct sockaddr_storage sa;
struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
#endif
g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
#ifdef G_OS_WIN32
sa.ss_family = address->priv->family;
if (address->priv->family == AF_INET)
{
addrlen = sizeof (*sin);
memcpy (&sin->sin_addr, &address->priv->addr.ipv4,
sizeof (sin->sin_addr));
sin->sin_port = 0;
}
else
{
addrlen = sizeof (*sin6);
memcpy (&sin6->sin6_addr, &address->priv->addr.ipv6,
sizeof (sin6->sin6_addr));
sin6->sin6_port = 0;
}
if (WSAAddressToString ((LPSOCKADDR) &sa, addrlen, NULL, buffer, &buflen) != 0)
return NULL;
#else /* !G_OS_WIN32 */
if (address->priv->family == AF_INET)
inet_ntop (AF_INET, &address->priv->addr.ipv4, buffer, sizeof (buffer));
else
inet_ntop (AF_INET6, &address->priv->addr.ipv6, buffer, sizeof (buffer));
#endif
return g_strdup (buffer);
}
/**
* g_inet_address_to_bytes:
* @address: a #GInetAddress
*
* Gets the raw binary address data from @address.
*
* Returns: a pointer to an internal array of the bytes in @address,
* which should not be modified, stored, or freed.
*
* Since: 2.22
*/
const guint8 *
g_inet_address_to_bytes (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
return (guint8 *)&address->priv->addr;
}
/**
* g_inet_address_get_family:
* @address: a #GInetAddress
*
* Gets @address's family
*
* Returns: @address's family
*
* Since: 2.22
*/
GSocketFamily
g_inet_address_get_family (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
return address->priv->family;
}
/**
* g_inet_address_get_is_any:
* @address: a #GInetAddress
*
* Tests whether @address is the "any" address for its family.
*
* Returns: %TRUE if @address is the "any" address for its family.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_any (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
{
guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
return addr4 == INADDR_ANY;
}
else
return IN6_IS_ADDR_UNSPECIFIED (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_loopback:
* @address: a #GInetAddress
*
* Tests whether @address is the loopback address for its family.
*
* Returns: %TRUE if @address is the loopback address for its family.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_loopback (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
{
guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
/* 127.0.0.0/8 */
return ((addr4 & 0xff000000) == 0x7f000000);
}
else
return IN6_IS_ADDR_LOOPBACK (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_link_local:
* @address: a #GInetAddress
*
* Tests whether @address is a link-local address (that is, if it
* identifies a host on a local network that is not connected to the
* Internet).
*
* Returns: %TRUE if @address is a link-local address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_link_local (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
{
guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
/* 169.254.0.0/16 */
return ((addr4 & 0xffff0000) == 0xa9fe0000);
}
else
return IN6_IS_ADDR_LINKLOCAL (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_site_local:
* @address: a #GInetAddress
*
* Tests whether @address is a site-local address such as 10.0.0.1
* (that is, the address identifies a host on a local network that can
* not be reached directly from the Internet, but which may have
* outgoing Internet connectivity via a NAT or firewall).
*
* Returns: %TRUE if @address is a site-local address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_site_local (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
{
guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
/* 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 */
return ((addr4 & 0xff000000) == 0x0a000000 ||
(addr4 & 0xfff00000) == 0xac100000 ||
(addr4 & 0xffff0000) == 0xc0a80000);
}
else
return IN6_IS_ADDR_SITELOCAL (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_multicast:
* @address: a #GInetAddress
*
* Tests whether @address is a multicast address.
*
* Returns: %TRUE if @address is a multicast address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_multicast (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
{
guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr);
return IN_MULTICAST (addr4);
}
else
return IN6_IS_ADDR_MULTICAST (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_mc_global:
* @address: a #GInetAddress
*
* Tests whether @address is a global multicast address.
*
* Returns: %TRUE if @address is a global multicast address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_mc_global (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
return FALSE;
else
return IN6_IS_ADDR_MC_GLOBAL (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_mc_link_local:
* @address: a #GInetAddress
*
* Tests whether @address is a link-local multicast address.
*
* Returns: %TRUE if @address is a link-local multicast address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_mc_link_local (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
return FALSE;
else
return IN6_IS_ADDR_MC_LINKLOCAL (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_mc_node_local:
* @address: a #GInetAddress
*
* Tests whether @address is a node-local multicast address.
*
* Returns: %TRUE if @address is a node-local multicast address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_mc_node_local (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
return FALSE;
else
return IN6_IS_ADDR_MC_NODELOCAL (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_mc_org_local:
* @address: a #GInetAddress
*
* Tests whether @address is an organization-local multicast address.
*
* Returns: %TRUE if @address is an organization-local multicast address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_mc_org_local (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
return FALSE;
else
return IN6_IS_ADDR_MC_ORGLOCAL (&address->priv->addr.ipv6);
}
/**
* g_inet_address_get_is_mc_site_local:
* @address: a #GInetAddress
*
* Tests whether @address is a site-local multicast address.
*
* Returns: %TRUE if @address is a site-local multicast address.
*
* Since: 2.22
*/
gboolean
g_inet_address_get_is_mc_site_local (GInetAddress *address)
{
g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE);
if (address->priv->family == AF_INET)
return FALSE;
else
return IN6_IS_ADDR_MC_SITELOCAL (&address->priv->addr.ipv6);
}
#define __G_INET_ADDRESS_C__
#include "gioaliasdef.c"
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