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GSocket: Add function for setting unicast TTL

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This commit is contained in:
Sebastian Dröge 2012-01-13 12:48:02 +01:00
parent 03b40522df
commit 5560d9b880
4 changed files with 123 additions and 0 deletions
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2
docs/reference/gio/gio-sections.txt
View File

@ -1814,6 +1814,8 @@ g_socket_get_keepalive
g_socket_set_keepalive
g_socket_get_timeout
g_socket_set_timeout
g_socket_set_ttl
g_socket_get_ttl
g_socket_get_family
g_socket_get_fd
g_socket_get_local_address

2
gio/gio.symbols
View File

@ -953,6 +953,7 @@ g_socket_get_blocking
g_socket_get_family
g_socket_get_fd
g_socket_get_timeout
g_socket_get_ttl
g_socket_get_keepalive
g_socket_get_listen_backlog
g_socket_get_local_address
@ -978,6 +979,7 @@ g_socket_send_to
g_socket_send_with_blocking
g_socket_set_blocking
g_socket_set_timeout
g_socket_set_ttl
g_socket_set_keepalive
g_socket_set_listen_backlog
g_socket_set_multicast_loopback

114
gio/gsocket.c
View File

@ -138,6 +138,7 @@ enum
PROP_LOCAL_ADDRESS,
PROP_REMOTE_ADDRESS,
PROP_TIMEOUT,
PROP_TTL,
PROP_MULTICAST_LOOPBACK,
PROP_MULTICAST_TTL
};
@ -615,6 +616,10 @@ g_socket_get_property (GObject *object,
g_value_set_uint (value, socket->priv->timeout);
break;
case PROP_TTL:
g_value_set_uint (value, g_socket_get_ttl (socket));
break;
case PROP_MULTICAST_LOOPBACK:
g_value_set_boolean (value, g_socket_get_multicast_loopback (socket));
break;
@ -670,6 +675,10 @@ g_socket_set_property (GObject *object,
g_socket_set_timeout (socket, g_value_get_uint (value));
break;
case PROP_TTL:
g_socket_set_ttl (socket, g_value_get_uint (value));
break;
case PROP_MULTICAST_LOOPBACK:
g_socket_set_multicast_loopback (socket, g_value_get_boolean (value));
break;
@ -836,6 +845,21 @@ g_socket_class_init (GSocketClass *klass)
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
/**
* GSocket:ttl:
*
* Time-to-live for outgoing unicast packets
*
* Since: 2.32
*/
g_object_class_install_property (gobject_class, PROP_TTL,
g_param_spec_uint ("ttl",
P_("TTL"),
P_("Time-to-live of outgoing unicast packets"),
0, G_MAXUINT, 0,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
/**
* GSocket:multicast-loopback:
*
@ -1211,6 +1235,96 @@ g_socket_set_timeout (GSocket *socket,
}
}
/**
* g_socket_get_ttl:
* @socket: a #GSocket.
*
* Gets the unicast time-to-live setting on @socket; see
* g_socket_set_ttl() for more details.
*
* Returns: the time-to-live setting on @socket
*
* Since: 2.32
*/
guint
g_socket_get_ttl (GSocket *socket)
{
int result;
guint value, optlen;
g_return_val_if_fail (G_IS_SOCKET (socket), FALSE);
if (socket->priv->family == G_SOCKET_FAMILY_IPV4)
{
guchar optval;
optlen = sizeof (optval);
result = getsockopt (socket->priv->fd, IPPROTO_IP, IP_TTL,
&optval, &optlen);
value = optval;
}
else if (socket->priv->family == G_SOCKET_FAMILY_IPV6)
{
optlen = sizeof (value);
result = getsockopt (socket->priv->fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
&value, &optlen);
}
else
g_return_val_if_reached (FALSE);
if (result < 0)
{
int errsv = get_socket_errno ();
g_warning ("error getting unicast ttl: %s", socket_strerror (errsv));
return FALSE;
}
return value;
}
/**
* g_socket_set_ttl:
* @socket: a #GSocket.
* @ttl: the time-to-live value for all unicast packets on @socket
*
* Sets the time-to-live for outgoing unicast packets on @socket.
* By default the platform-specific default value is used.
*
* Since: 2.32
*/
void
g_socket_set_ttl (GSocket *socket,
guint ttl)
{
int result;
g_return_if_fail (G_IS_SOCKET (socket));
if (socket->priv->family == G_SOCKET_FAMILY_IPV4)
{
guchar optval = (guchar)ttl;
result = setsockopt (socket->priv->fd, IPPROTO_IP, IP_TTL,
&optval, sizeof (optval));
}
else if (socket->priv->family == G_SOCKET_FAMILY_IPV6)
{
result = setsockopt (socket->priv->fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
&ttl, sizeof (ttl));
}
else
g_return_if_reached ();
if (result < 0)
{
int errsv = get_socket_errno ();
g_warning ("error setting unicast ttl: %s", socket_strerror (errsv));
return;
}
g_object_notify (G_OBJECT (socket), "ttl");
}
/**
* g_socket_get_multicast_loopback:
* @socket: a #GSocket.

5
gio/gsocket.h
View File

@ -100,6 +100,11 @@ void g_socket_set_listen_backlog (GSocket
guint g_socket_get_timeout (GSocket *socket);
void g_socket_set_timeout (GSocket *socket,
guint timeout);
guint g_socket_get_ttl (GSocket *socket);
void g_socket_set_ttl (GSocket *socket,
guint ttl);
gboolean g_socket_get_multicast_loopback (GSocket *socket);
void g_socket_set_multicast_loopback (GSocket *socket,
gboolean loopback);