1 /* GNIO - GLib Network Layer of GIO
3 * Copyright (C) 2008 Christian Kellner, Samuel Cormier-Iijima
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.
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.
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.
20 * Authors: Christian Kellner <gicmo@gnome.org>
21 * Samuel Cormier-Iijima <sciyoshi@gmail.com>
27 #include <gio/gasynchelper.h>
31 # include <netinet/in.h>
32 # include <arpa/inet.h>
36 # include <sys/types.h>
42 #include "ginetaddress.h"
43 #include "ginet4address.h"
44 #include "ginet6address.h"
46 #include "gnioerror.h"
47 #include "ginetsocketaddress.h"
49 G_DEFINE_TYPE (GSocket, g_socket, G_TYPE_OBJECT);
58 struct _GSocketPrivate
65 g_socket_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
67 GSocket *socket = G_SOCKET (object);
72 g_value_set_int (value, socket->priv->fd);
76 g_value_set_boolean (value, socket->priv->blocking);
80 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
85 g_socket_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
87 GSocket *socket = G_SOCKET (object);
92 socket->priv->fd = g_value_get_int (value);
96 g_socket_set_blocking (socket, g_value_get_boolean (value));
100 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
105 g_socket_finalize (GObject *object)
107 GSocket *socket G_GNUC_UNUSED = G_SOCKET (object);
109 if (G_OBJECT_CLASS (g_socket_parent_class)->finalize)
110 (*G_OBJECT_CLASS (g_socket_parent_class)->finalize) (object);
114 g_socket_dispose (GObject *object)
116 GSocket *socket G_GNUC_UNUSED = G_SOCKET (object);;
118 if (G_OBJECT_CLASS (g_socket_parent_class)->dispose)
119 (*G_OBJECT_CLASS (g_socket_parent_class)->dispose) (object);
123 g_socket_class_init (GSocketClass *klass)
125 GObjectClass *gobject_class G_GNUC_UNUSED = G_OBJECT_CLASS (klass);
127 g_type_class_add_private (klass, sizeof (GSocketPrivate));
129 gobject_class->finalize = g_socket_finalize;
130 gobject_class->dispose = g_socket_dispose;
131 gobject_class->set_property = g_socket_set_property;
132 gobject_class->get_property = g_socket_get_property;
134 g_object_class_install_property (gobject_class, PROP_FD,
135 g_param_spec_int ("fd",
137 "the socket's file descriptor",
141 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NICK));
143 g_object_class_install_property (gobject_class, PROP_BLOCKING,
144 g_param_spec_boolean ("blocking",
146 "whether or not this socket is blocking",
148 G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NICK));
152 g_socket_init (GSocket *socket)
154 socket->priv = G_TYPE_INSTANCE_GET_PRIVATE (socket, G_TYPE_SOCKET, GSocketPrivate);
156 socket->priv->fd = -1;
157 socket->priv->blocking = TRUE;
161 g_socket_new (GSocketDomain domain, GSocketType type, const gchar *protocol, GError **error)
163 static GStaticMutex getprotobyname_mutex = G_STATIC_MUTEX_INIT;
164 gint fd, native_domain, native_type, native_protocol;
168 case G_SOCKET_DOMAIN_INET:
169 native_domain = PF_INET;
172 case G_SOCKET_DOMAIN_INET6:
173 native_domain = PF_INET6;
176 case G_SOCKET_DOMAIN_UNIX:
177 native_domain = PF_UNIX;
181 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "unsupported socket domain");
187 case G_SOCKET_TYPE_STREAM:
188 native_type = SOCK_STREAM;
191 case G_SOCKET_TYPE_DATAGRAM:
192 native_type = SOCK_DGRAM;
195 case G_SOCKET_TYPE_SEQPACKET:
196 native_type = SOCK_SEQPACKET;
200 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "unsupported socket type");
204 if (protocol == NULL)
208 struct protoent *ent;
209 g_static_mutex_lock (&getprotobyname_mutex);
210 if (!(ent = getprotobyname (protocol)))
212 g_static_mutex_unlock (&getprotobyname_mutex);
213 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "unsupported socket protocol");
216 native_protocol = ent->p_proto;
217 g_static_mutex_unlock (&getprotobyname_mutex);
220 fd = socket(native_domain, native_type, native_protocol);
224 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), "unable to create socket: %s", g_strerror (errno));
228 return G_SOCKET (g_object_new (G_TYPE_SOCKET, "fd", fd, NULL));
232 g_socket_new_from_fd (gint fd)
237 if ((arg = fcntl (fd, F_GETFL, NULL)) < 0)
238 g_warning ("Error getting socket status flags: %s", g_strerror (errno));
240 blocking = ((arg & O_NONBLOCK) != 0);
242 return G_SOCKET (g_object_new (G_TYPE_SOCKET, "blocking", blocking, "fd", fd, NULL));
246 g_socket_set_blocking (GSocket *socket,
251 g_return_if_fail (G_IS_SOCKET (socket));
253 if ((arg = fcntl (socket->priv->fd, F_GETFL, NULL)) < 0)
254 g_warning ("Error getting socket status flags: %s", g_strerror (errno));
256 arg = blocking ? arg & ~O_NONBLOCK : arg | O_NONBLOCK;
258 if (fcntl (socket->priv->fd, F_SETFL, arg) < 0)
259 g_warning ("Error setting socket status flags: %s", g_strerror (errno));
261 socket->priv->blocking = blocking;
265 g_socket_get_blocking (GSocket *socket)
267 g_return_val_if_fail (G_IS_SOCKET (socket), FALSE);
269 return socket->priv->blocking;
273 g_socket_get_peer_address (GSocket *socket,
279 g_return_val_if_fail (G_IS_SOCKET (socket), NULL);
281 if (getpeername (socket->priv->fd, (struct sockaddr *) buffer, &len) < 0)
283 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), "could not get peer address: %s", g_strerror (errno));
287 return g_socket_address_from_native (buffer, len);
291 g_socket_listen (GSocket *socket,
294 g_return_if_fail (G_IS_SOCKET (socket));
296 listen (socket->priv->fd, backlog);
300 g_socket_bind (GSocket *socket,
301 GSocketAddress *address,
304 g_return_val_if_fail (G_IS_SOCKET (socket) && G_IS_SOCKET_ADDRESS (address), FALSE);
309 if (!g_socket_address_to_native (address, addr))
312 if (bind (socket->priv->fd, (struct sockaddr *) addr, g_socket_address_native_size (address)) < 0)
314 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), "error binding to address: %s", g_strerror (errno));
318 g_object_unref (address);
325 g_socket_accept (GSocket *socket,
326 GCancellable *cancellable,
331 if (g_cancellable_set_error_if_cancelled (cancellable, error))
334 if ((ret = accept (socket->priv->fd, NULL, 0)) < 0)
336 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), "error accepting connection");
340 if (g_cancellable_set_error_if_cancelled (cancellable, error))
346 return g_socket_new_from_fd (ret);
350 GAsyncReadyCallback callback;
351 GCancellable *cancellable;
357 accept_callback (AcceptData *data,
358 GIOCondition condition,
362 GSimpleAsyncResult *result;
365 socket = data->socket;
367 if (condition & G_IO_IN)
369 if ((ret = accept (socket->priv->fd, NULL, 0)) < 0)
374 result = g_simple_async_result_new_error (G_OBJECT (socket), data->callback, data->user_data, G_IO_ERROR, g_io_error_from_errno (errno), "error accepting connection");
378 result = g_simple_async_result_new (G_OBJECT (socket), data->callback, data->user_data, g_socket_accept_async);
380 g_simple_async_result_set_op_res_gpointer (result, g_socket_new_from_fd (ret), g_object_unref);
383 g_simple_async_result_complete (result);
385 g_object_unref (result);
392 g_socket_accept_async (GSocket *socket,
393 GCancellable *cancellable,
394 GAsyncReadyCallback callback,
398 GSimpleAsyncResult *result;
402 g_return_if_fail (G_IS_SOCKET (socket));
404 if (g_socket_get_blocking (socket))
405 g_socket_set_blocking (socket, FALSE);
407 if ((ret = accept (socket->priv->fd, NULL, 0)) < 0)
411 source = _g_fd_source_new (socket->priv->fd, G_IO_IN | G_IO_HUP | G_IO_ERR, cancellable);
413 data = g_new (AcceptData, 1);
415 data->socket = socket;
416 data->callback = callback;
417 data->cancellable = cancellable;
418 data->user_data = user_data;
420 g_source_set_callback (source, (GSourceFunc) accept_callback, data, g_free);
422 g_source_attach (source, NULL);
426 g_simple_async_report_error_in_idle (G_OBJECT (socket), callback, user_data, G_IO_ERROR, g_io_error_from_errno (errno), "error accepting connection");
431 result = g_simple_async_result_new (G_OBJECT (socket), callback, user_data, g_socket_accept_async);
433 g_simple_async_result_set_op_res_gpointer (result, g_socket_new_from_fd (ret), g_object_unref);
435 g_simple_async_result_complete_in_idle (result);
437 g_object_unref (result);
442 g_socket_accept_finish (GSocket *socket,
443 GAsyncResult *result,
447 GSimpleAsyncResult *simple;
449 g_return_val_if_fail (G_IS_SOCKET (socket), NULL);
451 simple = G_SIMPLE_ASYNC_RESULT (result);
453 if (g_simple_async_result_propagate_error (simple, error))
456 g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == g_socket_accept_async);
458 new_socket = g_object_ref (g_simple_async_result_get_op_res_gpointer (simple));
464 g_socket_connect (GSocket *socket,
465 GSocketAddress *address,
466 GCancellable *cancellable,
471 g_return_val_if_fail (G_IS_SOCKET (socket) && G_IS_SOCKET_ADDRESS (address), FALSE);
473 g_socket_address_to_native (address, buffer);
475 if (connect (socket->priv->fd, (struct sockaddr *) buffer, g_socket_address_native_size (address)) < 0)
477 if (errno == EINPROGRESS)
478 g_set_error (error, G_IO_ERROR, G_IO_ERROR_PENDING, "connection in progress");
480 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), "error connecting: %s", g_strerror (errno));
488 GAsyncReadyCallback callback;
489 GCancellable *cancellable;
492 gchar address_buffer[256];
493 gsize address_length;
497 connect_callback (ConnectData *data,
498 GIOCondition condition,
502 GSimpleAsyncResult *result = NULL;
504 gsize sockerr_size = 1;
506 socket = data->socket;
508 if (condition & G_IO_OUT)
510 result = g_simple_async_result_new (G_OBJECT (socket), data->callback, data->user_data, g_socket_connect_async);
512 else if (condition & G_IO_ERR)
514 if (getsockopt (fd, SOL_SOCKET, SO_ERROR, (gpointer) &sockerr, &sockerr_size) < 0)
515 g_warning ("getsockopt: %s", g_strerror (errno));
518 result = g_simple_async_result_new_error (G_OBJECT (socket), data->callback, data->user_data, G_IO_ERROR, g_io_error_from_errno (sockerr), "error connecting: %s", g_strerror (sockerr));
520 g_warning ("getsockopt SO_ERROR returned no error, with sockerr = %d", sockerr);
523 g_simple_async_result_complete (result);
525 g_object_unref (result);
531 g_socket_connect_async (GSocket *socket,
532 GSocketAddress *address,
533 GCancellable *cancellable,
534 GAsyncReadyCallback callback,
538 GSimpleAsyncResult *result;
544 g_return_if_fail (G_IS_SOCKET (socket) && G_IS_SOCKET_ADDRESS (address));
546 if (g_socket_get_blocking (socket))
547 g_socket_set_blocking (socket, FALSE);
549 g_socket_address_to_native (address, buffer);
551 len = g_socket_address_native_size (address);
553 if ((ret = connect (socket->priv->fd, (struct sockaddr *) buffer, len)) < 0)
555 if (errno == EINPROGRESS)
557 source = _g_fd_source_new (socket->priv->fd, G_IO_OUT | G_IO_ERR, cancellable);
559 data = g_new (ConnectData, 1);
561 data->socket = socket;
562 data->callback = callback;
563 data->cancellable = cancellable;
564 data->user_data = user_data;
565 data->address_length = len;
566 memcpy (data->address_buffer, buffer, len);
568 g_source_set_callback (source, (GSourceFunc) connect_callback, data, g_free);
570 g_source_attach (source, NULL);
574 g_simple_async_report_error_in_idle (G_OBJECT (socket), callback, user_data, G_IO_ERROR, g_io_error_from_errno (errno), "error connecting: %s", g_strerror (errno));
579 result = g_simple_async_result_new (G_OBJECT (socket), callback, user_data, g_socket_connect_async);
581 g_simple_async_result_complete_in_idle (result);
583 g_object_unref (result);
588 g_socket_connect_finish (GSocket *socket,
589 GAsyncResult *result,
592 GSimpleAsyncResult *simple;
594 g_return_val_if_fail (G_IS_SOCKET (socket), FALSE);
596 simple = G_SIMPLE_ASYNC_RESULT (result);
598 if (g_simple_async_result_propagate_error (simple, error))
601 g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == g_socket_connect_async);