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       1                 :            : /* GIO - GLib Input, Output and Streaming Library
       2                 :            :  *
       3                 :            :  * Copyright (C) 2008 Christian Kellner, Samuel Cormier-Iijima
       4                 :            :  *
       5                 :            :  * SPDX-License-Identifier: LGPL-2.1-or-later
       6                 :            :  *
       7                 :            :  * This library is free software; you can redistribute it and/or
       8                 :            :  * modify it under the terms of the GNU Lesser General Public
       9                 :            :  * License as published by the Free Software Foundation; either
      10                 :            :  * version 2.1 of the License, or (at your option) any later version.
      11                 :            :  *
      12                 :            :  * This library is distributed in the hope that it will be useful,
      13                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15                 :            :  * Lesser General Public License for more details.
      16                 :            :  *
      17                 :            :  * You should have received a copy of the GNU Lesser General
      18                 :            :  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
      19                 :            :  *
      20                 :            :  * Authors: Christian Kellner <gicmo@gnome.org>
      21                 :            :  *          Samuel Cormier-Iijima <sciyoshi@gmail.com>
      22                 :            :  */
      23                 :            : 
      24                 :            : #include <config.h>
      25                 :            : #include <glib.h>
      26                 :            : #include <string.h>
      27                 :            : 
      28                 :            : #include "gnativesocketaddress.h"
      29                 :            : #include "gnetworkingprivate.h"
      30                 :            : #include "gioerror.h"
      31                 :            : #include "glibintl.h"
      32                 :            : 
      33                 :            : 
      34                 :            : /**
      35                 :            :  * GNativeSocketAddress:
      36                 :            :  *
      37                 :            :  * A socket address of some unknown native type.
      38                 :            :  *
      39                 :            :  * This corresponds to a general `struct sockaddr` of a type not otherwise
      40                 :            :  * handled by GLib.
      41                 :            :  *
      42                 :            :  * Since: 2.46
      43                 :            :  */
      44                 :            : 
      45                 :            : struct _GNativeSocketAddressPrivate
      46                 :            : {
      47                 :            :   struct sockaddr *sockaddr;
      48                 :            :   union {
      49                 :            :     struct sockaddr_storage storage;
      50                 :            :     struct sockaddr sa;
      51                 :            :   } storage;
      52                 :            :   gsize sockaddr_len;
      53                 :            : };
      54                 :            : 
      55   [ +  +  +  -  :        407 : G_DEFINE_TYPE_WITH_PRIVATE (GNativeSocketAddress, g_native_socket_address, G_TYPE_SOCKET_ADDRESS)
                   +  + ]
      56                 :            : 
      57                 :            : static void
      58                 :         22 : g_native_socket_address_dispose (GObject *object)
      59                 :            : {
      60                 :         22 :   GNativeSocketAddress *address = G_NATIVE_SOCKET_ADDRESS (object);
      61                 :            : 
      62         [ +  + ]:         22 :   if (address->priv->sockaddr != &address->priv->storage.sa)
      63                 :          1 :     g_free (address->priv->sockaddr);
      64                 :            : 
      65                 :         22 :   G_OBJECT_CLASS (g_native_socket_address_parent_class)->dispose (object);
      66                 :         22 : }
      67                 :            : 
      68                 :            : static GSocketFamily
      69                 :          0 : g_native_socket_address_get_family (GSocketAddress *address)
      70                 :            : {
      71                 :            :   GNativeSocketAddress *addr;
      72                 :            : 
      73                 :          0 :   g_return_val_if_fail (G_IS_NATIVE_SOCKET_ADDRESS (address), 0);
      74                 :            : 
      75                 :          0 :   addr = G_NATIVE_SOCKET_ADDRESS (address);
      76                 :            : 
      77                 :          0 :   return addr->priv->sockaddr->sa_family;
      78                 :            : }
      79                 :            : 
      80                 :            : static gssize
      81                 :          0 : g_native_socket_address_get_native_size (GSocketAddress *address)
      82                 :            : {
      83                 :            :   GNativeSocketAddress *addr;
      84                 :            : 
      85                 :          0 :   g_return_val_if_fail (G_IS_NATIVE_SOCKET_ADDRESS (address), 0);
      86                 :            : 
      87                 :          0 :   addr = G_NATIVE_SOCKET_ADDRESS (address);
      88                 :            : 
      89                 :          0 :   return addr->priv->sockaddr_len;
      90                 :            : }
      91                 :            : 
      92                 :            : static gboolean
      93                 :        126 : g_native_socket_address_to_native (GSocketAddress  *address,
      94                 :            :                                    gpointer         dest,
      95                 :            :                                    gsize            destlen,
      96                 :            :                                    GError         **error)
      97                 :            : {
      98                 :            :   GNativeSocketAddress *addr;
      99                 :            : 
     100                 :        126 :   g_return_val_if_fail (G_IS_NATIVE_SOCKET_ADDRESS (address), FALSE);
     101                 :            : 
     102                 :        126 :   addr = G_NATIVE_SOCKET_ADDRESS (address);
     103                 :            : 
     104         [ -  + ]:        126 :   if (destlen < addr->priv->sockaddr_len)
     105                 :            :     {
     106                 :          0 :       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NO_SPACE,
     107                 :            :                            _("Not enough space for socket address"));
     108                 :          0 :       return FALSE;
     109                 :            :     }
     110                 :            : 
     111                 :        126 :   memcpy (dest, addr->priv->sockaddr, addr->priv->sockaddr_len);
     112                 :        126 :   return TRUE;
     113                 :            : }
     114                 :            : 
     115                 :            : static void
     116                 :         23 : g_native_socket_address_class_init (GNativeSocketAddressClass *klass)
     117                 :            : {
     118                 :         23 :   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
     119                 :         23 :   GSocketAddressClass *gsocketaddress_class = G_SOCKET_ADDRESS_CLASS (klass);
     120                 :            : 
     121                 :         23 :   gobject_class->dispose = g_native_socket_address_dispose;
     122                 :            : 
     123                 :         23 :   gsocketaddress_class->get_family = g_native_socket_address_get_family;
     124                 :         23 :   gsocketaddress_class->to_native = g_native_socket_address_to_native;
     125                 :         23 :   gsocketaddress_class->get_native_size = g_native_socket_address_get_native_size;
     126                 :         23 : }
     127                 :            : 
     128                 :            : static void
     129                 :         43 : g_native_socket_address_init (GNativeSocketAddress *address)
     130                 :            : {
     131                 :         43 :   address->priv = g_native_socket_address_get_instance_private (address);
     132                 :         43 : }
     133                 :            : 
     134                 :            : /**
     135                 :            :  * g_native_socket_address_new:
     136                 :            :  * @native: a native address object
     137                 :            :  * @len: the length of @native, in bytes
     138                 :            :  *
     139                 :            :  * Creates a new #GNativeSocketAddress for @native and @len.
     140                 :            :  *
     141                 :            :  * Returns: a new #GNativeSocketAddress
     142                 :            :  *
     143                 :            :  * Since: 2.46
     144                 :            :  */
     145                 :            : GSocketAddress *
     146                 :         42 : g_native_socket_address_new (gpointer        native,
     147                 :            :                              gsize           len)
     148                 :            : {
     149                 :            :   GNativeSocketAddress *addr;
     150                 :            : 
     151                 :         42 :   addr = g_object_new (G_TYPE_NATIVE_SOCKET_ADDRESS, NULL);
     152                 :            : 
     153         [ +  - ]:         42 :   if (len <= sizeof(addr->priv->storage))
     154                 :         42 :     addr->priv->sockaddr = &addr->priv->storage.sa;
     155                 :            :   else
     156                 :          0 :     addr->priv->sockaddr = g_malloc (len);
     157                 :            : 
     158                 :         42 :   memcpy (addr->priv->sockaddr, native, len);
     159                 :         42 :   addr->priv->sockaddr_len = len;
     160                 :         42 :   return G_SOCKET_ADDRESS (addr);
     161                 :            : }