glib/gio/gnativesocketaddress.c

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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2008 Christian Kellner, Samuel Cormier-Iijima
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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 2.1 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, see <http://www.gnu.org/licenses/>.
*
* Authors: Christian Kellner <gicmo@gnome.org>
* Samuel Cormier-Iijima <sciyoshi@gmail.com>
*/
#include <config.h>
#include <glib.h>
#include <string.h>
#include "gnativesocketaddress.h"
#include "gnetworkingprivate.h"
#include "gioerror.h"
#include "glibintl.h"
/**
* GNativeSocketAddress:
*
* A socket address of some unknown native type.
*
* This corresponds to a general `struct sockaddr` of a type not otherwise
* handled by GLib.
*
* Since: 2.46
*/
struct _GNativeSocketAddressPrivate
{
struct sockaddr *sockaddr;
union {
struct sockaddr_storage storage;
struct sockaddr sa;
} storage;
gsize sockaddr_len;
};
G_DEFINE_TYPE_WITH_PRIVATE (GNativeSocketAddress, g_native_socket_address, G_TYPE_SOCKET_ADDRESS)
static void
g_native_socket_address_dispose (GObject *object)
{
GNativeSocketAddress *address = G_NATIVE_SOCKET_ADDRESS (object);
if (address->priv->sockaddr != &address->priv->storage.sa)
g_free (address->priv->sockaddr);
G_OBJECT_CLASS (g_native_socket_address_parent_class)->dispose (object);
}
static GSocketFamily
g_native_socket_address_get_family (GSocketAddress *address)
{
GNativeSocketAddress *addr;
g_return_val_if_fail (G_IS_NATIVE_SOCKET_ADDRESS (address), 0);
addr = G_NATIVE_SOCKET_ADDRESS (address);
return addr->priv->sockaddr->sa_family;
}
static gssize
g_native_socket_address_get_native_size (GSocketAddress *address)
{
GNativeSocketAddress *addr;
g_return_val_if_fail (G_IS_NATIVE_SOCKET_ADDRESS (address), 0);
addr = G_NATIVE_SOCKET_ADDRESS (address);
return addr->priv->sockaddr_len;
}
static gboolean
g_native_socket_address_to_native (GSocketAddress *address,
gpointer dest,
gsize destlen,
GError **error)
{
GNativeSocketAddress *addr;
g_return_val_if_fail (G_IS_NATIVE_SOCKET_ADDRESS (address), FALSE);
addr = G_NATIVE_SOCKET_ADDRESS (address);
if (destlen < addr->priv->sockaddr_len)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NO_SPACE,
_("Not enough space for socket address"));
return FALSE;
}
memcpy (dest, addr->priv->sockaddr, addr->priv->sockaddr_len);
return TRUE;
}
static void
g_native_socket_address_class_init (GNativeSocketAddressClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GSocketAddressClass *gsocketaddress_class = G_SOCKET_ADDRESS_CLASS (klass);
gobject_class->dispose = g_native_socket_address_dispose;
gsocketaddress_class->get_family = g_native_socket_address_get_family;
gsocketaddress_class->to_native = g_native_socket_address_to_native;
gsocketaddress_class->get_native_size = g_native_socket_address_get_native_size;
}
static void
g_native_socket_address_init (GNativeSocketAddress *address)
{
address->priv = g_native_socket_address_get_instance_private (address);
}
/**
* g_native_socket_address_new:
* @native: a native address object
* @len: the length of @native, in bytes
*
* Creates a new #GNativeSocketAddress for @native and @len.
*
* Returns: a new #GNativeSocketAddress
*
* Since: 2.46
*/
GSocketAddress *
g_native_socket_address_new (gpointer native,
gsize len)
{
GNativeSocketAddress *addr;
addr = g_object_new (G_TYPE_NATIVE_SOCKET_ADDRESS, NULL);
if (len <= sizeof(addr->priv->storage))
addr->priv->sockaddr = &addr->priv->storage.sa;
else
addr->priv->sockaddr = g_malloc (len);
memcpy (addr->priv->sockaddr, native, len);
addr->priv->sockaddr_len = len;
return G_SOCKET_ADDRESS (addr);
}