static GInetAddress * gst_udpsrc_resolve (GstUDPSrc * src, const gchar * address) { GInetAddress *addr; GError *err = NULL; GResolver *resolver; addr = g_inet_address_new_from_string (address); if (!addr) { GList *results; GST_DEBUG_OBJECT (src, "resolving IP address for host %s", address); resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, address, src->cancellable, &err); if (!results) goto name_resolve; addr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } #ifndef GST_DISABLE_GST_DEBUG { gchar *ip = g_inet_address_to_string (addr); GST_DEBUG_OBJECT (src, "IP address for host %s is %s", address, ip); g_free (ip); } #endif return addr; name_resolve: { GST_WARNING_OBJECT (src, "Failed to resolve %s: %s", address, err->message); g_clear_error (&err); g_object_unref (resolver); return NULL; } }
gboolean resolve_hostname(gchar* hostname, gchar** out_addr) { GList* resolved_addresses; GResolver* resolver; resolver = g_resolver_get_default(); resolved_addresses = g_resolver_lookup_by_name(resolver, hostname, NULL, NULL); if(resolved_addresses == NULL) { *out_addr = NULL; g_object_unref(resolver); return FALSE; } *out_addr = g_inet_address_to_string(resolved_addresses->data); g_list_free(resolved_addresses); g_object_unref(resolver); return TRUE; }
static void lookup_one_sync (const char *arg) { GError *error = NULL; if (strchr (arg, '/')) { GList *targets; /* service/protocol/domain */ char **parts = g_strsplit (arg, "/", 3); if (!parts || !parts[2]) usage (); targets = g_resolver_lookup_service (resolver, parts[0], parts[1], parts[2], cancellable, &error); print_resolved_service (arg, targets, error); } else if (g_hostname_is_ip_address (arg)) { GInetAddress *addr = g_inet_address_new_from_string (arg); char *name; name = g_resolver_lookup_by_address (resolver, addr, cancellable, &error); print_resolved_name (arg, name, error); g_object_unref (addr); } else { GList *addresses; addresses = g_resolver_lookup_by_name (resolver, arg, cancellable, &error); print_resolved_addresses (arg, addresses, error); } }
/* note that address_entry has already been validated => * both host and port (guaranteed to be a number in [0, 65535]) are set (family is optional) */ static gboolean try_tcp (GDBusServer *server, const gchar *address_entry, GHashTable *key_value_pairs, gboolean do_nonce, GError **error) { gboolean ret; const gchar *host; const gchar *port; gint port_num; GResolver *resolver; GList *resolved_addresses; GList *l; ret = FALSE; resolver = NULL; resolved_addresses = NULL; host = g_hash_table_lookup (key_value_pairs, "host"); port = g_hash_table_lookup (key_value_pairs, "port"); /* family = g_hash_table_lookup (key_value_pairs, "family"); */ if (g_hash_table_lookup (key_value_pairs, "noncefile") != NULL) { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT, _("Cannot specify nonce file when creating a server")); goto out; } if (host == NULL) host = "localhost"; if (port == NULL) port = "0"; port_num = strtol (port, NULL, 10); resolver = g_resolver_get_default (); resolved_addresses = g_resolver_lookup_by_name (resolver, host, NULL, error); if (resolved_addresses == NULL) goto out; /* TODO: handle family */ for (l = resolved_addresses; l != NULL; l = l->next) { GInetAddress *address = G_INET_ADDRESS (l->data); GSocketAddress *socket_address; GSocketAddress *effective_address; socket_address = g_inet_socket_address_new (address, port_num); if (!g_socket_listener_add_address (server->listener, socket_address, G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, NULL, /* GObject *source_object */ &effective_address, error)) { g_object_unref (socket_address); goto out; } if (port_num == 0) /* make sure we allocate the same port number for other listeners */ port_num = g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (effective_address)); g_object_unref (effective_address); g_object_unref (socket_address); } if (do_nonce) { gint fd; guint n; gsize bytes_written; gsize bytes_remaining; char *file_escaped; server->nonce = g_new0 (guchar, 16); for (n = 0; n < 16; n++) server->nonce[n] = g_random_int_range (0, 256); fd = g_file_open_tmp ("gdbus-nonce-file-XXXXXX", &server->nonce_file, error); if (fd == -1) { g_socket_listener_close (server->listener); goto out; } again: bytes_written = 0; bytes_remaining = 16; while (bytes_remaining > 0) { gssize ret; ret = write (fd, server->nonce + bytes_written, bytes_remaining); if (ret == -1) { if (errno == EINTR) goto again; g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), _("Error writing nonce file at '%s': %s"), server->nonce_file, strerror (errno)); goto out; } bytes_written += ret; bytes_remaining -= ret; } if (!g_close (fd, error)) goto out; file_escaped = g_uri_escape_string (server->nonce_file, "/\\", FALSE); server->client_address = g_strdup_printf ("nonce-tcp:host=%s,port=%d,noncefile=%s", host, port_num, file_escaped); g_free (file_escaped); } else { server->client_address = g_strdup_printf ("tcp:host=%s,port=%d", host, port_num); } server->is_using_listener = TRUE; ret = TRUE; out: g_list_free_full (resolved_addresses, g_object_unref); g_object_unref (resolver); return ret; }
/* create a socket for sending to remote machine */ static void gst_sctp_base_sink_create_socket (GstSCTPBaseSink * self) { GSocketAddress *saddr; GResolver *resolver; GInetAddress *addr; GError *err = NULL; if (GST_OBJECT_FLAG_IS_SET (self, GST_SCTP_BASE_SINK_OPEN)) return; /* look up name if we need to */ addr = g_inet_address_new_from_string (self->priv->host); if (addr == NULL) { GList *results; resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, self->priv->host, self->priv->cancellable, &err); if (results == NULL) goto name_resolve; addr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } if (G_UNLIKELY (GST_LEVEL_DEBUG <= _gst_debug_min)) { gchar *ip = g_inet_address_to_string (addr); GST_DEBUG_OBJECT (self, "IP address for host %s is %s", self->priv->host, ip); g_free (ip); } saddr = g_inet_socket_address_new (addr, self->priv->port); g_object_unref (addr); /* create sending client socket */ GST_DEBUG_OBJECT (self, "opening sending client socket to %s:%d", self->priv->host, self->priv->port); self->priv->socket = g_socket_new (g_socket_address_get_family (saddr), G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_SCTP, &err); if (self->priv->socket == NULL) goto no_socket; #if defined (SCTP_INITMSG) { struct sctp_initmsg initmsg; memset (&initmsg, 0, sizeof (initmsg)); initmsg.sinit_num_ostreams = self->priv->num_ostreams; initmsg.sinit_max_instreams = self->priv->max_istreams; if (setsockopt (g_socket_get_fd (self->priv->socket), IPPROTO_SCTP, SCTP_INITMSG, &initmsg, sizeof (initmsg)) < 0) GST_ELEMENT_WARNING (self, RESOURCE, SETTINGS, (NULL), ("Could not configure SCTP socket: %s (%d)", g_strerror (errno), errno)); } #else GST_WARNING_OBJECT (self, "don't know how to configure the SCTP initiation " "parameters on this OS."); #endif GST_DEBUG_OBJECT (self, "opened sending client socket"); /* connect to server */ if (!g_socket_connect (self->priv->socket, saddr, self->priv->cancellable, &err)) goto connect_failed; g_object_unref (saddr); GST_OBJECT_FLAG_SET (self, GST_SCTP_BASE_SINK_OPEN); GST_DEBUG ("Created sctp socket"); return; no_socket: { GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ, (NULL), ("Failed to create socket: %s", err->message)); g_clear_error (&err); g_object_unref (saddr); return; } name_resolve: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (self, "Cancelled name resolval"); } else { GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ, (NULL), ("Failed to resolve host '%s': %s", self->priv->host, err->message)); } g_clear_error (&err); g_object_unref (resolver); return; } connect_failed: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (self, "Cancelled connecting"); } else { GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ, (NULL), ("Failed to connect to host '%s:%d': %s", self->priv->host, self->priv->port, err->message)); } g_clear_error (&err); g_object_unref (saddr); /* pretend we opened ok for proper cleanup to happen */ GST_OBJECT_FLAG_SET (self, GST_SCTP_BASE_SINK_OPEN); gst_sctp_base_sink_destroy_socket (self); return; } }
static GSocket * gst_switch_server_listen (GstSwitchServer *srv, gint port, gint *bound_port) { GError *err = NULL; GInetAddress *addr; GSocket *socket = NULL; GSocketAddress *saddr; GResolver *resolver; gchar *ip; *bound_port = 0; /* look up name if we need to */ addr = g_inet_address_new_from_string (srv->host); if (!addr) { GList *results; resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, srv->host, srv->cancellable, &err); if (!results) goto resolve_no_name; addr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } ip = g_inet_address_to_string (addr); saddr = g_inet_socket_address_new (addr, port); g_object_unref (addr); /* create the server listener socket */ socket = g_socket_new (g_socket_address_get_family (saddr), G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, &err); if (!socket) goto socket_new_failed; /* bind it */ if (!g_socket_bind (socket, saddr, TRUE, &err)) goto socket_bind_failed; g_object_unref (saddr); /* listen on the socket */ g_socket_set_listen_backlog (socket, GST_SWITCH_SERVER_LISTEN_BACKLOG); if (!g_socket_listen (socket, &err)) goto socket_listen_failed; if (port == 0) { saddr = g_socket_get_local_address (socket, NULL); *bound_port = g_inet_socket_address_get_port ((GInetSocketAddress *) saddr); g_object_unref (saddr); } else { *bound_port = port; } INFO ("Listening on %s (%s:%d)", srv->host, ip, *bound_port); g_free (ip); //g_atomic_int_set (&srv->bound_port, bound_port); //g_object_notify (G_OBJECT (src), "bound-port"); return socket; /* Errors Handling */ resolve_no_name: { ERROR ("resolve: %s", err->message); g_object_unref (resolver); g_object_unref (addr); return NULL; } socket_new_failed: { ERROR ("new socket: %s", err->message); g_clear_error (&err); g_object_unref (saddr); g_free (ip); return NULL; } socket_bind_failed: { ERROR ("bind socket: %s", err->message); g_clear_error (&err); g_object_unref (saddr); g_free (ip); return NULL; } socket_listen_failed: { ERROR ("listen socket: %s", err->message); g_clear_error (&err); g_object_unref (saddr); g_free (ip); return NULL; } }
static gboolean gst_tcp_mix_src_listen (GstTCPMixSrc * src, GstTCPMixSrcPad * pad) { GError *err = NULL; GInetAddress *addr; GSocketAddress *saddr; GResolver *resolver; gint bound_port = 0; gchar *ip; /* look up name if we need to */ addr = g_inet_address_new_from_string (src->host); if (!addr) { GList *results; resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, src->host, src->cancellable, &err); if (!results) goto resolve_no_name; addr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } /* get IP address */ ip = g_inet_address_to_string (addr); saddr = g_inet_socket_address_new (addr, src->server_port); g_object_unref (addr); /* create the server listener socket */ src->server_socket = g_socket_new (g_socket_address_get_family (saddr), G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, &err); if (!src->server_socket) goto socket_new_failed; /* bind it */ if (!g_socket_bind (src->server_socket, saddr, TRUE, &err)) goto socket_bind_failed; g_object_unref (saddr); g_socket_set_listen_backlog (src->server_socket, TCP_BACKLOG); if (!g_socket_listen (src->server_socket, &err)) goto socket_listen_failed; GST_OBJECT_FLAG_SET (src, GST_TCP_MIX_SRC_OPEN); if (src->server_port == 0) { saddr = g_socket_get_local_address (src->server_socket, NULL); bound_port = g_inet_socket_address_get_port ((GInetSocketAddress *) saddr); g_object_unref (saddr); } else { bound_port = src->server_port; } GST_DEBUG_OBJECT (src, "Listening on %s (%s:%d)", src->host, ip, bound_port); g_free (ip); g_atomic_int_set (&src->bound_port, bound_port); g_object_notify (G_OBJECT (src), "bound-port"); return TRUE; /* Handling Errors */ resolve_no_name: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (src, "Cancelled name resolval"); } else { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to resolve host '%s': %s", src->host, err->message)); } g_clear_error (&err); g_object_unref (resolver); return FALSE; } socket_new_failed: { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to create socket: %s", err->message)); g_clear_error (&err); g_object_unref (saddr); return FALSE; } socket_bind_failed: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (src, "Cancelled binding"); } else { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to bind on host '%s:%d': %s", src->host, src->server_port, err->message)); } g_clear_error (&err); g_object_unref (saddr); gst_tcp_mix_src_stop (src, pad); return FALSE; } socket_listen_failed: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (src, "Cancelled listening"); } else { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to listen on host '%s:%d': %s", src->host, src->server_port, err->message)); } g_clear_error (&err); gst_tcp_mix_src_stop (src, pad); return FALSE; } }
static void handle_enrol_message (SnraClient * client, GstStructure * s) { int clock_port; gint64 tmp; GstClockTime cur_time; gchar *server_ip_str = NULL; gdouble new_vol; if (!snra_json_structure_get_int (s, "clock-port", &clock_port)) return; /* Invalid message */ if (!snra_json_structure_get_int64 (s, "current-time", &tmp)) return; /* Invalid message */ cur_time = (GstClockTime) (tmp); if (snra_json_structure_get_double (s, "volume-level", &new_vol)) { if (client->player == NULL) construct_player (client); if (client->player) { //g_print ("New volume %g\n", new_vol); g_object_set (G_OBJECT (client->player), "volume", new_vol, "mute", (gboolean) (new_vol == 0.0), NULL); } } snra_json_structure_get_boolean (s, "enabled", &client->enabled); snra_json_structure_get_boolean (s, "paused", &client->paused); #if GLIB_CHECK_VERSION(2,22,0) { GResolver *resolver = g_resolver_get_default (); GList *names; if (resolver == NULL) return; names = g_resolver_lookup_by_name (resolver, client->connected_server, NULL, NULL); if (names) { server_ip_str = g_inet_address_to_string ((GInetAddress *) (names->data)); g_resolver_free_addresses (names); } g_object_unref (resolver); } #else { struct addrinfo *names = NULL; if (getaddrinfo (client->connected_server, NULL, NULL, &names)) return; if (names) { char hbuf[NI_MAXHOST]; if (getnameinfo (names->ai_addr, names->ai_addrlen, hbuf, sizeof (hbuf), NULL, 0, NI_NUMERICHOST) == 0) { server_ip_str = g_strdup (hbuf); } freeaddrinfo (names); } } #endif if (server_ip_str) { g_print ("Creating net clock at %s:%d time %" GST_TIME_FORMAT "\n", server_ip_str, clock_port, GST_TIME_ARGS (cur_time)); if (client->net_clock) gst_object_unref (client->net_clock); client->net_clock = gst_net_client_clock_new ("net_clock", server_ip_str, clock_port, cur_time); g_free (server_ip_str); } }
static void bookmark_added (GeditCollaborationWindowHelper *helper, GeditCollaborationBookmark *bookmark) { GResolver *resolver = g_resolver_get_default (); GList *addresses; InfTcpConnection *tcp; InfIpAddress *ipaddress; InfXmppConnection *connection; gchar *ipaddr; NameInfo *info; GeditCollaborationUser *user; /* TODO: make this asynchronous and be smarter about it */ addresses = g_resolver_lookup_by_name (resolver, gedit_collaboration_bookmark_get_host (bookmark), NULL, NULL); if (!addresses) { return; } ipaddr = g_inet_address_to_string ((GInetAddress *)addresses->data); g_resolver_free_addresses (addresses); ipaddress = inf_ip_address_new_from_string (ipaddr); g_free (ipaddr); tcp = inf_tcp_connection_new (helper->priv->io, ipaddress, (guint)gedit_collaboration_bookmark_get_port (bookmark)); user = gedit_collaboration_bookmark_get_user (bookmark); connection = inf_xmpp_connection_new (tcp, INF_XMPP_CONNECTION_CLIENT, NULL, gedit_collaboration_bookmark_get_host (bookmark), INF_XMPP_CONNECTION_SECURITY_BOTH_PREFER_TLS, helper->priv->certificate_credentials, gedit_collaboration_user_get_sasl_context (user), "ANONYMOUS PLAIN"); g_signal_connect (user, "request-password", G_CALLBACK (user_request_password), helper); inf_gtk_browser_store_add_connection (helper->priv->browser_store, INF_XML_CONNECTION (connection), gedit_collaboration_bookmark_get_name (bookmark)); g_object_set_data (G_OBJECT (connection), BOOKMARK_DATA_KEY, bookmark); inf_ip_address_free (ipaddress); g_object_unref (tcp); info = g_slice_new (NameInfo); info->helper = helper; info->connection = INF_XML_CONNECTION (connection); g_signal_connect_data (bookmark, "notify::name", G_CALLBACK (on_bookmark_name_changed), info, (GClosureNotify)name_info_free, 0); }
/* create a socket for sending to remote machine */ static gboolean gst_udpsrc_start (GstBaseSrc * bsrc) { GstUDPSrc *src; GInetAddress *addr, *bind_addr; GSocketAddress *bind_saddr; GResolver *resolver; GError *err = NULL; src = GST_UDPSRC (bsrc); if (src->socket == NULL) { /* need to allocate a socket */ GST_DEBUG_OBJECT (src, "allocating socket for %s:%d", src->host, src->port); addr = g_inet_address_new_from_string (src->host); if (!addr) { GList *results; GST_DEBUG_OBJECT (src, "resolving IP address for host %s", src->host); resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, src->host, src->cancellable, &err); if (!results) goto name_resolve; addr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } #ifndef GST_DISABLE_GST_DEBUG { gchar *ip = g_inet_address_to_string (addr); GST_DEBUG_OBJECT (src, "IP address for host %s is %s", src->host, ip); g_free (ip); } #endif if ((src->used_socket = g_socket_new (g_inet_address_get_family (addr), G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL) goto no_socket; src->external_socket = FALSE; GST_DEBUG_OBJECT (src, "got socket %p", src->used_socket); if (src->addr) g_object_unref (src->addr); src->addr = G_INET_SOCKET_ADDRESS (g_inet_socket_address_new (addr, src->port)); GST_DEBUG_OBJECT (src, "binding on port %d", src->port); if (g_inet_address_get_is_multicast (addr)) bind_addr = g_inet_address_new_any (g_inet_address_get_family (addr)); else bind_addr = G_INET_ADDRESS (g_object_ref (addr)); g_object_unref (addr); bind_saddr = g_inet_socket_address_new (bind_addr, src->port); g_object_unref (bind_addr); if (!g_socket_bind (src->used_socket, bind_saddr, src->reuse, &err)) goto bind_error; g_object_unref (bind_saddr); } else { GST_DEBUG_OBJECT (src, "using provided socket %p", src->socket); /* we use the configured socket, try to get some info about it */ src->used_socket = G_SOCKET (g_object_ref (src->socket)); src->external_socket = TRUE; if (src->addr) g_object_unref (src->addr); src->addr = G_INET_SOCKET_ADDRESS (g_socket_get_local_address (src->used_socket, &err)); if (!src->addr) goto getsockname_error; } #if GLIB_CHECK_VERSION (2, 35, 7) { gint val = 0; if (src->buffer_size != 0) { GError *opt_err = NULL; GST_INFO_OBJECT (src, "setting udp buffer of %d bytes", src->buffer_size); /* set buffer size, Note that on Linux this is typically limited to a * maximum of around 100K. Also a minimum of 128 bytes is required on * Linux. */ if (!g_socket_set_option (src->used_socket, SOL_SOCKET, SO_RCVBUF, src->buffer_size, &opt_err)) { GST_ELEMENT_WARNING (src, RESOURCE, SETTINGS, (NULL), ("Could not create a buffer of requested %d bytes: %s", src->buffer_size, opt_err->message)); g_error_free (opt_err); opt_err = NULL; } } /* read the value of the receive buffer. Note that on linux this returns * 2x the value we set because the kernel allocates extra memory for * metadata. The default on Linux is about 100K (which is about 50K * without metadata) */ if (g_socket_get_option (src->used_socket, SOL_SOCKET, SO_RCVBUF, &val, NULL)) { GST_INFO_OBJECT (src, "have udp buffer of %d bytes", val); } else { GST_DEBUG_OBJECT (src, "could not get udp buffer size"); } } #elif defined (SO_RCVBUF) { gint rcvsize, ret; socklen_t len; len = sizeof (rcvsize); if (src->buffer_size != 0) { rcvsize = src->buffer_size; GST_DEBUG_OBJECT (src, "setting udp buffer of %d bytes", rcvsize); /* set buffer size, Note that on Linux this is typically limited to a * maximum of around 100K. Also a minimum of 128 bytes is required on * Linux. */ ret = setsockopt (g_socket_get_fd (src->used_socket), SOL_SOCKET, SO_RCVBUF, (void *) &rcvsize, len); if (ret != 0) { GST_ELEMENT_WARNING (src, RESOURCE, SETTINGS, (NULL), ("Could not create a buffer of requested %d bytes, %d: %s (%d)", rcvsize, ret, g_strerror (errno), errno)); } } /* read the value of the receive buffer. Note that on linux this returns 2x the * value we set because the kernel allocates extra memory for metadata. * The default on Linux is about 100K (which is about 50K without metadata) */ ret = getsockopt (g_socket_get_fd (src->used_socket), SOL_SOCKET, SO_RCVBUF, (void *) &rcvsize, &len); if (ret == 0) GST_DEBUG_OBJECT (src, "have udp buffer of %d bytes", rcvsize); else GST_DEBUG_OBJECT (src, "could not get udp buffer size"); } #else if (src->buffer_size != 0) { GST_WARNING_OBJECT (src, "don't know how to set udp buffer size on this " "OS. Consider upgrading your GLib to >= 2.35.7 and re-compiling the " "GStreamer udp plugin"); } #endif g_socket_set_broadcast (src->used_socket, TRUE); if (src->auto_multicast && g_inet_address_get_is_multicast (g_inet_socket_address_get_address (src->addr))) { GST_DEBUG_OBJECT (src, "joining multicast group %s", src->host); if (!g_socket_join_multicast_group (src->used_socket, g_inet_socket_address_get_address (src->addr), FALSE, src->multi_iface, &err)) goto membership; } /* NOTE: sockaddr_in.sin_port works for ipv4 and ipv6 because sin_port * follows ss_family on both */ { GInetSocketAddress *addr; guint16 port; addr = G_INET_SOCKET_ADDRESS (g_socket_get_local_address (src->used_socket, &err)); if (!addr) goto getsockname_error; port = g_inet_socket_address_get_port (addr); GST_DEBUG_OBJECT (src, "bound, on port %d", port); if (port != src->port) { src->port = port; GST_DEBUG_OBJECT (src, "notifying port %d", port); g_object_notify (G_OBJECT (src), "port"); } g_object_unref (addr); } return TRUE; /* ERRORS */ name_resolve: { GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL), ("Name resolval failed: %s", err->message)); g_clear_error (&err); g_object_unref (resolver); return FALSE; } no_socket: { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("no socket error: %s", err->message)); g_clear_error (&err); g_object_unref (addr); return FALSE; } bind_error: { GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL), ("bind failed: %s", err->message)); g_clear_error (&err); g_object_unref (bind_saddr); gst_udpsrc_stop (GST_BASE_SRC (src)); return FALSE; } membership: { GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL), ("could add membership: %s", err->message)); g_clear_error (&err); gst_udpsrc_stop (GST_BASE_SRC (src)); return FALSE; } getsockname_error: { GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL), ("getsockname failed: %s", err->message)); g_clear_error (&err); gst_udpsrc_stop (GST_BASE_SRC (src)); return FALSE; } }
/* create a socket for sending to remote machine */ static gboolean gst_multiudpsink_start (GstBaseSink * bsink) { GstMultiUDPSink *sink; GList *clients; GstUDPClient *client; GError *err = NULL; sink = GST_MULTIUDPSINK (bsink); sink->external_socket = FALSE; if (sink->socket) { GST_DEBUG_OBJECT (sink, "using configured socket"); if (g_socket_get_family (sink->socket) == G_SOCKET_FAMILY_IPV6) { sink->used_socket_v6 = G_SOCKET (g_object_ref (sink->socket)); sink->external_socket = TRUE; } else { sink->used_socket = G_SOCKET (g_object_ref (sink->socket)); sink->external_socket = TRUE; } } if (sink->socket_v6) { GST_DEBUG_OBJECT (sink, "using configured IPv6 socket"); g_return_val_if_fail (g_socket_get_family (sink->socket) != G_SOCKET_FAMILY_IPV6, FALSE); if (sink->used_socket_v6 && sink->used_socket_v6 != sink->socket_v6) { GST_ERROR_OBJECT (sink, "Provided different IPv6 sockets in socket and socket-v6 properties"); return FALSE; } sink->used_socket_v6 = G_SOCKET (g_object_ref (sink->socket_v6)); sink->external_socket = TRUE; } if (!sink->used_socket && !sink->used_socket_v6) { GSocketAddress *bind_addr; GInetAddress *bind_iaddr; if (sink->bind_address) { GSocketFamily family; bind_iaddr = g_inet_address_new_from_string (sink->bind_address); if (!bind_iaddr) { GList *results; GResolver *resolver; resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, sink->bind_address, sink->cancellable, &err); if (!results) { g_object_unref (resolver); goto name_resolve; } bind_iaddr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } bind_addr = g_inet_socket_address_new (bind_iaddr, sink->bind_port); g_object_unref (bind_iaddr); family = g_socket_address_get_family (G_SOCKET_ADDRESS (bind_addr)); if ((sink->used_socket = g_socket_new (family, G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL) { g_object_unref (bind_addr); goto no_socket; } g_socket_bind (sink->used_socket, bind_addr, TRUE, &err); if (err != NULL) goto bind_error; } else { /* create sender sockets if none available */ if ((sink->used_socket = g_socket_new (G_SOCKET_FAMILY_IPV4, G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL) goto no_socket; bind_iaddr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4); bind_addr = g_inet_socket_address_new (bind_iaddr, sink->bind_port); g_socket_bind (sink->used_socket, bind_addr, TRUE, &err); g_object_unref (bind_addr); g_object_unref (bind_iaddr); if (err != NULL) goto bind_error; if ((sink->used_socket_v6 = g_socket_new (G_SOCKET_FAMILY_IPV6, G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL) { GST_INFO_OBJECT (sink, "Failed to create IPv6 socket: %s", err->message); g_clear_error (&err); } else { bind_iaddr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV6); bind_addr = g_inet_socket_address_new (bind_iaddr, sink->bind_port); g_socket_bind (sink->used_socket_v6, bind_addr, TRUE, &err); g_object_unref (bind_addr); g_object_unref (bind_iaddr); if (err != NULL) goto bind_error; } } } #ifdef SO_SNDBUF { socklen_t len; gint sndsize, ret; len = sizeof (sndsize); if (sink->buffer_size != 0) { sndsize = sink->buffer_size; GST_DEBUG_OBJECT (sink, "setting udp buffer of %d bytes", sndsize); /* set buffer size, Note that on Linux this is typically limited to a * maximum of around 100K. Also a minimum of 128 bytes is required on * Linux. */ if (sink->used_socket) { ret = setsockopt (g_socket_get_fd (sink->used_socket), SOL_SOCKET, SO_SNDBUF, (void *) &sndsize, len); if (ret != 0) { GST_ELEMENT_WARNING (sink, RESOURCE, SETTINGS, (NULL), ("Could not create a buffer of requested %d bytes, %d: %s", sndsize, ret, g_strerror (errno))); } } if (sink->used_socket_v6) { ret = setsockopt (g_socket_get_fd (sink->used_socket_v6), SOL_SOCKET, SO_SNDBUF, (void *) &sndsize, len); if (ret != 0) { GST_ELEMENT_WARNING (sink, RESOURCE, SETTINGS, (NULL), ("Could not create a buffer of requested %d bytes, %d: %s", sndsize, ret, g_strerror (errno))); } } } /* read the value of the receive buffer. Note that on linux this returns 2x the * value we set because the kernel allocates extra memory for metadata. * The default on Linux is about 100K (which is about 50K without metadata) */ if (sink->used_socket) { ret = getsockopt (g_socket_get_fd (sink->used_socket), SOL_SOCKET, SO_SNDBUF, (void *) &sndsize, &len); if (ret == 0) GST_DEBUG_OBJECT (sink, "have UDP buffer of %d bytes", sndsize); else GST_DEBUG_OBJECT (sink, "could not get UDP buffer size"); } if (sink->used_socket_v6) { ret = getsockopt (g_socket_get_fd (sink->used_socket_v6), SOL_SOCKET, SO_SNDBUF, (void *) &sndsize, &len); if (ret == 0) GST_DEBUG_OBJECT (sink, "have UDPv6 buffer of %d bytes", sndsize); else GST_DEBUG_OBJECT (sink, "could not get UDPv6 buffer size"); } } #endif #ifdef SO_BINDTODEVICE if (sink->multi_iface) { if (sink->used_socket) { setsockopt (g_socket_get_fd (sink->used_socket), SOL_SOCKET, SO_BINDTODEVICE, sink->multi_iface, strlen (sink->multi_iface)); } if (sink->used_socket_v6) { setsockopt (g_socket_get_fd (sink->used_socket_v6), SOL_SOCKET, SO_BINDTODEVICE, sink->multi_iface, strlen (sink->multi_iface)); } } #endif if (sink->used_socket) g_socket_set_broadcast (sink->used_socket, TRUE); if (sink->used_socket_v6) g_socket_set_broadcast (sink->used_socket_v6, TRUE); sink->bytes_to_serve = 0; sink->bytes_served = 0; gst_multiudpsink_setup_qos_dscp (sink, sink->used_socket); gst_multiudpsink_setup_qos_dscp (sink, sink->used_socket_v6); /* look for multicast clients and join multicast groups appropriately set also ttl and multicast loopback delivery appropriately */ for (clients = sink->clients; clients; clients = g_list_next (clients)) { client = (GstUDPClient *) clients->data; if (!gst_multiudpsink_configure_client (sink, client)) return FALSE; } return TRUE; /* ERRORS */ no_socket: { GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL), ("Could not create socket: %s", err->message)); g_clear_error (&err); return FALSE; } bind_error: { GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL), ("Failed to bind socket: %s", err->message)); g_clear_error (&err); return FALSE; } name_resolve: { GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL), ("Failed to resolve bind address %s: %s", sink->bind_address, err->message)); g_clear_error (&err); return FALSE; } }
static GSocketAddress * g_proxy_address_enumerator_next (GSocketAddressEnumerator *enumerator, GCancellable *cancellable, GError **error) { GProxyAddressEnumeratorPrivate *priv = GET_PRIVATE (enumerator); GSocketAddress *result = NULL; GError *first_error = NULL; if (priv->proxies == NULL) { GProxyResolver *resolver = g_proxy_resolver_get_default (); priv->proxies = g_proxy_resolver_lookup (resolver, priv->dest_uri, cancellable, error); priv->next_proxy = priv->proxies; if (priv->proxies == NULL) return NULL; } while (result == NULL && (*priv->next_proxy || priv->addr_enum)) { gchar *dest_hostname; gchar *dest_protocol; GInetSocketAddress *inetsaddr; GInetAddress *inetaddr; guint16 port; next_enumerator (priv); if (!priv->addr_enum) continue; if (priv->proxy_address == NULL) { priv->proxy_address = g_socket_address_enumerator_next ( priv->addr_enum, cancellable, first_error ? NULL : &first_error); } if (priv->proxy_address == NULL) { g_object_unref (priv->addr_enum); priv->addr_enum = NULL; if (priv->dest_ips) { g_resolver_free_addresses (priv->dest_ips); priv->dest_ips = NULL; } continue; } if (strcmp ("direct", priv->proxy_type) == 0) { result = priv->proxy_address; priv->proxy_address = NULL; continue; } if (!priv->supports_hostname) { GInetAddress *dest_ip; if (!priv->dest_ips) { GResolver *resolver; resolver = g_resolver_get_default(); priv->dest_ips = g_resolver_lookup_by_name (resolver, priv->dest_hostname, cancellable, first_error ? NULL : &first_error); g_object_unref (resolver); if (!priv->dest_ips) { g_object_unref (priv->proxy_address); priv->proxy_address = NULL; continue; } } if (!priv->next_dest_ip) priv->next_dest_ip = priv->dest_ips; dest_ip = G_INET_ADDRESS (priv->next_dest_ip->data); dest_hostname = g_inet_address_to_string (dest_ip); priv->next_dest_ip = g_list_next (priv->next_dest_ip); } else { dest_hostname = g_strdup (priv->dest_hostname); } dest_protocol = g_uri_parse_scheme (priv->dest_uri); g_return_val_if_fail (G_IS_INET_SOCKET_ADDRESS (priv->proxy_address), NULL); inetsaddr = G_INET_SOCKET_ADDRESS (priv->proxy_address); inetaddr = g_inet_socket_address_get_address (inetsaddr); port = g_inet_socket_address_get_port (inetsaddr); result = g_object_new (G_TYPE_PROXY_ADDRESS, "address", inetaddr, "port", port, "protocol", priv->proxy_type, "destination-protocol", dest_protocol, "destination-hostname", dest_hostname, "destination-port", priv->dest_port, "username", priv->proxy_username, "password", priv->proxy_password, "uri", priv->proxy_uri, NULL); g_free (dest_hostname); g_free (dest_protocol); if (priv->supports_hostname || priv->next_dest_ip == NULL) { g_object_unref (priv->proxy_address); priv->proxy_address = NULL; } } if (result == NULL && first_error) g_propagate_error (error, first_error); else if (first_error) g_error_free (first_error); return result; }
static gboolean gst_net_client_internal_clock_start (GstNetClientInternalClock * self) { GSocketAddress *servaddr; GSocketAddress *myaddr; GSocketAddress *anyaddr; GInetAddress *inetaddr; GSocket *socket; GError *error = NULL; GSocketFamily family; GPollFD dummy_pollfd; GResolver *resolver = NULL; GError *err = NULL; g_return_val_if_fail (self->address != NULL, FALSE); g_return_val_if_fail (self->servaddr == NULL, FALSE); /* create target address */ inetaddr = g_inet_address_new_from_string (self->address); if (inetaddr == NULL) { GList *results; resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, self->address, NULL, &err); if (!results) goto failed_to_resolve; inetaddr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } family = g_inet_address_get_family (inetaddr); servaddr = g_inet_socket_address_new (inetaddr, self->port); g_object_unref (inetaddr); g_assert (servaddr != NULL); GST_DEBUG_OBJECT (self, "will communicate with %s:%d", self->address, self->port); socket = g_socket_new (family, G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &error); if (socket == NULL) goto no_socket; GST_DEBUG_OBJECT (self, "binding socket"); inetaddr = g_inet_address_new_any (family); anyaddr = g_inet_socket_address_new (inetaddr, 0); g_socket_bind (socket, anyaddr, TRUE, &error); g_object_unref (anyaddr); g_object_unref (inetaddr); if (error != NULL) goto bind_error; /* check address we're bound to, mostly for debugging purposes */ myaddr = g_socket_get_local_address (socket, &error); if (myaddr == NULL) goto getsockname_error; GST_DEBUG_OBJECT (self, "socket opened on UDP port %d", g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (myaddr))); g_object_unref (myaddr); self->cancel = g_cancellable_new (); self->made_cancel_fd = g_cancellable_make_pollfd (self->cancel, &dummy_pollfd); self->socket = socket; self->servaddr = G_SOCKET_ADDRESS (servaddr); self->thread = g_thread_try_new ("GstNetClientInternalClock", gst_net_client_internal_clock_thread, self, &error); if (error != NULL) goto no_thread; return TRUE; /* ERRORS */ no_socket: { GST_ERROR_OBJECT (self, "socket_new() failed: %s", error->message); g_error_free (error); return FALSE; } bind_error: { GST_ERROR_OBJECT (self, "bind failed: %s", error->message); g_error_free (error); g_object_unref (socket); return FALSE; } getsockname_error: { GST_ERROR_OBJECT (self, "get_local_address() failed: %s", error->message); g_error_free (error); g_object_unref (socket); return FALSE; } failed_to_resolve: { GST_ERROR_OBJECT (self, "resolving '%s' failed: %s", self->address, err->message); g_clear_error (&err); g_object_unref (resolver); return FALSE; } no_thread: { GST_ERROR_OBJECT (self, "could not create thread: %s", error->message); g_object_unref (self->servaddr); self->servaddr = NULL; g_object_unref (self->socket); self->socket = NULL; g_error_free (error); return FALSE; } }
/* set up server */ static gboolean gst_tcp_server_src_start (GstBaseSrc * bsrc) { GstTCPServerSrc *src = GST_TCP_SERVER_SRC (bsrc); GError *err = NULL; GInetAddress *addr; GSocketAddress *saddr; GResolver *resolver; /* look up name if we need to */ addr = g_inet_address_new_from_string (src->host); if (!addr) { GList *results; resolver = g_resolver_get_default (); results = g_resolver_lookup_by_name (resolver, src->host, src->cancellable, &err); if (!results) goto name_resolve; addr = G_INET_ADDRESS (g_object_ref (results->data)); g_resolver_free_addresses (results); g_object_unref (resolver); } #ifndef GST_DISABLE_GST_DEBUG { gchar *ip = g_inet_address_to_string (addr); GST_DEBUG_OBJECT (src, "IP address for host %s is %s", src->host, ip); g_free (ip); } #endif saddr = g_inet_socket_address_new (addr, src->server_port); g_object_unref (addr); /* create the server listener socket */ src->server_socket = g_socket_new (g_socket_address_get_family (saddr), G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, &err); if (!src->server_socket) goto no_socket; GST_DEBUG_OBJECT (src, "opened receiving server socket"); /* bind it */ GST_DEBUG_OBJECT (src, "binding server socket to address"); if (!g_socket_bind (src->server_socket, saddr, TRUE, &err)) goto bind_failed; g_object_unref (saddr); GST_DEBUG_OBJECT (src, "listening on server socket"); g_socket_set_listen_backlog (src->server_socket, TCP_BACKLOG); if (!g_socket_listen (src->server_socket, &err)) goto listen_failed; GST_OBJECT_FLAG_SET (src, GST_TCP_SERVER_SRC_OPEN); return TRUE; /* ERRORS */ no_socket: { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to create socket: %s", err->message)); g_clear_error (&err); g_object_unref (saddr); return FALSE; } name_resolve: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (src, "Cancelled name resolval"); } else { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to resolve host '%s': %s", src->host, err->message)); } g_clear_error (&err); g_object_unref (resolver); return FALSE; } bind_failed: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (src, "Cancelled binding"); } else { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to bind on host '%s:%d': %s", src->host, src->server_port, err->message)); } g_clear_error (&err); g_object_unref (saddr); gst_tcp_server_src_stop (GST_BASE_SRC (src)); return FALSE; } listen_failed: { if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { GST_DEBUG_OBJECT (src, "Cancelled listening"); } else { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Failed to listen on host '%s:%d': %s", src->host, src->server_port, err->message)); } g_clear_error (&err); gst_tcp_server_src_stop (GST_BASE_SRC (src)); return FALSE; } }
/** * magmad command line parsing code * * @param argc number of command line arguments * @param argv vector of command line arguments */ void magma_parse_args(int argc, char **argv) { memset(magma_environment.log, 0, 255); magma_environment.progname = *argv; /* saving program name */ magma_environment.port = MAGMA_PORT; /* default port */ magma_environment.servername = g_strdup(""); /* default server name */ magma_environment.nickname = g_strdup(""); /* default server nickname */ magma_environment.ipaddr = g_strdup(""); /* default server IP address */ magma_environment.hashpath = g_strdup(""); /* default server path for local storage */ magma_environment.bootserver = NULL; /* default remote boot server */ magma_environment.secretkey = NULL; magma_environment.bandwidth = MAGMA_DEFAULT_BANDWIDTH; /* Declared bandwidth */ magma_environment.storage = MAGMA_DEFAULT_STORAGE; /* Declared storage */ magma_environment.bootstrap = 0; /* If true, this node should bootstrap a new network, if false this node should join an existing one */ /* * cycling through options */ char c; while ((c = getopt(argc, argv, "blhHA?D:Tp:i:n:s:d:w:r:k:" )) != -1) { switch (c) { case 'b': if (magma_environment.bootserver) { dbg(LOG_ERR, DEBUG_BOOT, "Bootstrap and remote server can't be specified together. Exiting now."); exit(1); } magma_environment.bootstrap = 1; break; case 'h': case 'H': magma_usage(NULL); break; case 'A': memset(magma_environment.log, 1, 255); dbg(LOG_INFO, DEBUG_BOOT, "Enabling all debug statements"); break; case 'D': if (optarg) { magma_environment.logstring = g_strdup(optarg); dbg(LOG_INFO, DEBUG_BOOT, "Setting debug mask to %s", magma_environment.logstring); } break; case 'p': if (optarg) { magma_environment.port = atol(optarg); dbg(LOG_INFO, DEBUG_BOOT, "port: %d", magma_environment.port); } break; case 'i': if (optarg) { g_free_null(magma_environment.ipaddr); magma_environment.ipaddr = g_strdup(optarg); dbg(LOG_INFO, DEBUG_BOOT, "Server local IP addr: %s", magma_environment.ipaddr); } break; case 'n': if (optarg) { g_free_null(magma_environment.nickname); magma_environment.nickname = g_strndup(optarg, 255); dbg(LOG_INFO, DEBUG_BOOT, "Server Nickname: %s", magma_environment.nickname); } break; case 's': if (optarg) { g_free_null(magma_environment.servername); magma_environment.servername = g_strndup(optarg, 255); dbg(LOG_INFO, DEBUG_BOOT, "Server FQDN name: %s", magma_environment.servername); } break; case 'd': if (optarg) { g_free_null(magma_environment.hashpath); magma_environment.hashpath = g_strdup(optarg); if (magma_environment.hashpath[strlen(magma_environment.hashpath) - 1] == '/') { magma_environment.hashpath[strlen(magma_environment.hashpath) - 1] = '\0'; } dbg(LOG_INFO, DEBUG_BOOT, "Hash Dir Path: %s", magma_environment.hashpath); } break; case 'w': if (optarg) { magma_environment.bandwidth = atol(optarg); dbg(LOG_INFO, DEBUG_BOOT, "Declared Bandwidth: %dKbit/s", magma_environment.bandwidth); } break; case 'r': if (optarg) { if (magma_environment.bootstrap) { dbg(LOG_ERR, DEBUG_BOOT, "Bootstrap and remote server can't be specified together. Exiting now."); exit(1); } g_free_null(magma_environment.bootserver); char *portp = NULL; if ((portp = rindex(optarg,':')) != NULL) { *portp = '\0'; portp++; magma_environment.bootport = atoi(portp); } else { magma_environment.bootport = MAGMA_PORT; } magma_environment.bootserver = g_strdup(optarg); magma_environment.bootstrap = 0; dbg(LOG_INFO, DEBUG_BOOT, "Remote boot server: %s:%u", magma_environment.bootserver, magma_environment.bootport); } break; case 'k': if (optarg) { magma_environment.secretkey = g_strdup(optarg); dbg(LOG_INFO, DEBUG_BOOT, "Secret Key is [%s]", magma_environment.secretkey); } break; case '?': if (isprint(optopt)) { dbg(LOG_ERR, DEBUG_ERR, "Unknown option -%c", optopt); magma_usage(NULL); } else { dbg(LOG_INFO, DEBUG_BOOT, "Unknown option character \\x%x", optopt); } break; default: break; } } magma_expand_log_channels(&magma_environment); GResolver *resolver = g_resolver_get_default(); /* * try to replace default nickname with a valid one from the DNS */ if (!strlen(magma_environment.nickname)) { char *hostname = malloc(HOST_NAME_MAX); if (hostname != NULL) { if (gethostname(hostname, HOST_NAME_MAX) == 0) { g_free_null(magma_environment.nickname); magma_environment.nickname = g_strdup(hostname); } g_free_null(hostname); } } /* * try to replace default server name with a valid one from the DNS */ if (!strlen(magma_environment.servername)) { /* struct hostent *h = gethostbyname(magma_environment.nickname); if (h != NULL) { g_free_null(magma_environment.servername); magma_environment.servername = g_strdup(h->h_name); if (index(magma_environment.servername, '.') == NULL) { // server name should be a fully qualified name!!! magma_usage("Server Fully Qualified Name is not Fully Qualified!"); } } */ GList *addr = g_resolver_lookup_by_name(resolver, magma_environment.nickname, NULL, NULL); gchar *addr_string = g_list_nth_data(addr, 0); if (!addr_string) { gchar *string = g_strdup_printf( "No FQDN provided and magmad was unable to resolve one from %s", magma_environment.nickname); magma_usage(string); } else { if (!index(magma_environment.servername, '.')) { magma_usage("Server Fully Qualified Name is not Fully Qualified!"); } } } /* * Without a valid IP address the server can't start. * Try to resolve magma_environment.servername and exit * if the operation fails */ if (inet_aton(magma_environment.ipaddr, NULL) == 0) { GList *addr = g_resolver_lookup_by_name(resolver, magma_environment.servername, NULL, NULL); gchar *addr_string = g_list_nth_data(addr, 0); if (!addr_string) { gchar *string = g_strdup_printf("No IP address provided and can't resolve %s", magma_environment.servername); magma_usage(string); } else { magma_environment.ipaddr = addr_string; } } /* * if neither boot server or bootstrap has been specified, the * server should load its state from last saved lava topology */ if (!magma_environment.bootstrap && !magma_environment.bootserver) { if (!magma_environment.nickname || !strlen(magma_environment.nickname)) { magma_usage("Please specify server nickname to allow status loading from disk!"); } } else if (magma_environment.secretkey == NULL ) { magma_usage("No secret key specified! Network can't be created or joined!"); } g_object_unref(resolver); }