[134] | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
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| 2 | * |
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| 3 | * Copyright (C) 1998, 1999, 2000 Martin K, Petersen <mkp@mkp.net> |
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| 4 | * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or modify |
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| 7 | * it under the terms of the GNU General Public License as published by |
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| 8 | * the Free Software Foundation; either version 2 of the License, or |
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| 9 | * (at your option) any later version. |
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| 10 | * |
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| 11 | * This program is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | * GNU General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU General Public License |
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| 17 | * along with this program; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 19 | * |
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| 20 | */ |
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| 21 | |
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| 22 | #include "config.h" |
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| 23 | |
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| 24 | #include <stdlib.h> |
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| 25 | #include <stdio.h> |
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| 26 | #include <unistd.h> |
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| 27 | #include <string.h> |
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| 28 | #include <errno.h> |
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| 29 | #include <sys/types.h> |
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| 30 | #include <netinet/in.h> |
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| 31 | #include <sys/socket.h> |
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| 32 | #include <sys/ioctl.h> |
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| 33 | #include <net/if.h> |
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| 34 | #ifdef HAVE_SYS_SOCKIO_H |
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| 35 | #include <sys/sockio.h> |
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| 36 | #endif |
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| 37 | |
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| 38 | #include <X11/Xmd.h> |
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| 39 | #include <X11/Xdmcp.h> |
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| 40 | |
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| 41 | #include <glib.h> |
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| 42 | #include <glib/gi18n.h> |
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| 43 | #include <glib-object.h> |
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| 44 | #include <gtk/gtk.h> |
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| 45 | |
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| 46 | #include "gdm-address.h" |
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| 47 | #include "gdm-chooser-host.h" |
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| 48 | #include "gdm-host-chooser-widget.h" |
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| 49 | |
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| 50 | #define GDM_HOST_CHOOSER_WIDGET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_HOST_CHOOSER_WIDGET, GdmHostChooserWidgetPrivate)) |
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| 51 | |
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| 52 | struct GdmHostChooserWidgetPrivate |
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| 53 | { |
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| 54 | GtkWidget *treeview; |
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| 55 | |
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| 56 | int kind_mask; |
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| 57 | |
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| 58 | char **hosts; |
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| 59 | |
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| 60 | XdmcpBuffer broadcast_buf; |
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| 61 | XdmcpBuffer query_buf; |
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| 62 | gboolean have_ipv6; |
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| 63 | int socket_fd; |
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| 64 | guint io_watch_id; |
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| 65 | guint scan_time_id; |
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| 66 | guint ping_try_id; |
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| 67 | |
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| 68 | int ping_tries; |
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| 69 | |
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| 70 | GSList *broadcast_addresses; |
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| 71 | GSList *query_addresses; |
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| 72 | GSList *chooser_hosts; |
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| 73 | |
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| 74 | GdmChooserHost *current_host; |
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| 75 | }; |
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| 76 | |
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| 77 | enum { |
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| 78 | PROP_0, |
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| 79 | PROP_KIND_MASK, |
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| 80 | }; |
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| 81 | |
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| 82 | enum { |
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| 83 | HOST_ACTIVATED, |
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| 84 | LAST_SIGNAL |
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| 85 | }; |
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| 86 | |
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| 87 | static guint signals [LAST_SIGNAL] = { 0, }; |
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| 88 | |
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| 89 | static void gdm_host_chooser_widget_class_init (GdmHostChooserWidgetClass *klass); |
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| 90 | static void gdm_host_chooser_widget_init (GdmHostChooserWidget *host_chooser_widget); |
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| 91 | static void gdm_host_chooser_widget_finalize (GObject *object); |
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| 92 | |
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| 93 | G_DEFINE_TYPE (GdmHostChooserWidget, gdm_host_chooser_widget, GTK_TYPE_VBOX) |
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| 94 | |
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| 95 | #define GDM_XDMCP_PROTOCOL_VERSION 1001 |
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| 96 | #define SCAN_TIMEOUT 30 |
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| 97 | #define PING_TIMEOUT 2 |
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| 98 | #define PING_TRIES 3 |
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| 99 | |
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| 100 | enum { |
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| 101 | CHOOSER_LIST_ICON_COLUMN = 0, |
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| 102 | CHOOSER_LIST_LABEL_COLUMN, |
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| 103 | CHOOSER_LIST_HOST_COLUMN |
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| 104 | }; |
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| 105 | |
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| 106 | static void |
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| 107 | chooser_host_add (GdmHostChooserWidget *widget, |
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| 108 | GdmChooserHost *host) |
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| 109 | { |
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| 110 | widget->priv->chooser_hosts = g_slist_prepend (widget->priv->chooser_hosts, host); |
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| 111 | } |
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| 112 | |
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| 113 | #if 0 |
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| 114 | static void |
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| 115 | chooser_host_remove (GdmHostChooserWidget *widget, |
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| 116 | GdmChooserHost *host) |
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| 117 | { |
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| 118 | widget->priv->chooser_hosts = g_slist_remove (widget->priv->chooser_hosts, host); |
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| 119 | } |
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| 120 | #endif |
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| 121 | |
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| 122 | static GdmChooserHost * |
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| 123 | find_known_host (GdmHostChooserWidget *widget, |
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| 124 | GdmAddress *address) |
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| 125 | { |
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| 126 | GSList *li; |
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| 127 | GdmChooserHost *host; |
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| 128 | |
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| 129 | for (li = widget->priv->chooser_hosts; li != NULL; li = li->next) { |
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| 130 | host = li->data; |
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| 131 | if (gdm_address_equal (gdm_chooser_host_get_address (host), address)) { |
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| 132 | goto out; |
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| 133 | } |
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| 134 | } |
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| 135 | |
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| 136 | host = NULL; |
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| 137 | out: |
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| 138 | |
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| 139 | return host; |
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| 140 | } |
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| 141 | |
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| 142 | static void |
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| 143 | browser_add_host (GdmHostChooserWidget *widget, |
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| 144 | GdmChooserHost *host) |
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| 145 | { |
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| 146 | char *hostname; |
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| 147 | char *name; |
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| 148 | char *desc; |
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| 149 | char *label; |
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| 150 | GtkTreeModel *model; |
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| 151 | GtkTreeIter iter; |
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| 152 | gboolean res; |
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| 153 | |
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| 154 | g_assert (host != NULL); |
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| 155 | |
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| 156 | if (! gdm_chooser_host_get_willing (host)) { |
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| 157 | gtk_widget_set_sensitive (GTK_WIDGET (widget), TRUE); |
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| 158 | return; |
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| 159 | } |
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| 160 | |
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| 161 | res = gdm_address_get_hostname (gdm_chooser_host_get_address (host), &hostname); |
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| 162 | if (! res) { |
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| 163 | gdm_address_get_numeric_info (gdm_chooser_host_get_address (host), &hostname, NULL); |
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| 164 | } |
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| 165 | |
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| 166 | name = g_markup_escape_text (hostname, -1); |
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| 167 | desc = g_markup_escape_text (gdm_chooser_host_get_description (host), -1); |
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| 168 | label = g_strdup_printf ("<b>%s</b>\n%s", name, desc); |
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| 169 | g_free (name); |
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| 170 | g_free (desc); |
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| 171 | |
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| 172 | model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget->priv->treeview)); |
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| 173 | |
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| 174 | gtk_list_store_append (GTK_LIST_STORE (model), &iter); |
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| 175 | gtk_list_store_set (GTK_LIST_STORE (model), |
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| 176 | &iter, |
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| 177 | CHOOSER_LIST_ICON_COLUMN, NULL, |
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| 178 | CHOOSER_LIST_LABEL_COLUMN, label, |
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| 179 | CHOOSER_LIST_HOST_COLUMN, host, |
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| 180 | -1); |
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| 181 | g_free (label); |
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| 182 | |
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| 183 | } |
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| 184 | |
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| 185 | static gboolean |
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| 186 | decode_packet (GIOChannel *source, |
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| 187 | GIOCondition condition, |
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| 188 | GdmHostChooserWidget *widget) |
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| 189 | { |
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| 190 | struct sockaddr_storage clnt_ss; |
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| 191 | GdmAddress *address; |
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| 192 | int ss_len; |
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| 193 | XdmcpHeader header; |
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| 194 | int res; |
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| 195 | static XdmcpBuffer buf; |
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| 196 | ARRAY8 auth = {0}; |
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| 197 | ARRAY8 host = {0}; |
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| 198 | ARRAY8 stat = {0}; |
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| 199 | char *status; |
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| 200 | GdmChooserHost *chooser_host; |
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| 201 | |
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| 202 | status = NULL; |
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| 203 | address = NULL; |
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| 204 | |
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| 205 | g_debug ("decode_packet: GIOCondition %d", (int)condition); |
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| 206 | |
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| 207 | if ( ! (condition & G_IO_IN)) { |
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| 208 | return TRUE; |
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| 209 | } |
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| 210 | |
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| 211 | ss_len = sizeof (clnt_ss); |
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| 212 | res = XdmcpFill (widget->priv->socket_fd, &buf, (XdmcpNetaddr)&clnt_ss, &ss_len); |
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| 213 | if G_UNLIKELY (! res) { |
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| 214 | g_debug (_("XDMCP: Could not create XDMCP buffer!")); |
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| 215 | return TRUE; |
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| 216 | } |
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| 217 | |
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| 218 | res = XdmcpReadHeader (&buf, &header); |
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| 219 | if G_UNLIKELY (! res) { |
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| 220 | g_warning (_("XDMCP: Could not read XDMCP header!")); |
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| 221 | return TRUE; |
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| 222 | } |
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| 223 | |
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| 224 | if G_UNLIKELY (header.version != XDM_PROTOCOL_VERSION && |
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| 225 | header.version != GDM_XDMCP_PROTOCOL_VERSION) { |
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| 226 | g_warning (_("XMDCP: Incorrect XDMCP version!")); |
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| 227 | return TRUE; |
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| 228 | } |
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| 229 | |
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| 230 | address = gdm_address_new_from_sockaddr ((struct sockaddr *) &clnt_ss, ss_len); |
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| 231 | if (address == NULL) { |
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| 232 | g_warning (_("XMDCP: Unable to parse address")); |
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| 233 | return TRUE; |
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| 234 | } |
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| 235 | |
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| 236 | gdm_address_debug (address); |
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| 237 | |
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| 238 | if (header.opcode == WILLING) { |
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| 239 | if (! XdmcpReadARRAY8 (&buf, &auth)) { |
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| 240 | goto done; |
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| 241 | } |
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| 242 | |
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| 243 | if (! XdmcpReadARRAY8 (&buf, &host)) { |
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| 244 | goto done; |
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| 245 | } |
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| 246 | |
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| 247 | if (! XdmcpReadARRAY8 (&buf, &stat)) { |
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| 248 | goto done; |
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| 249 | } |
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| 250 | |
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| 251 | status = g_strndup ((char *) stat.data, MIN (stat.length, 256)); |
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| 252 | } else if (header.opcode == UNWILLING) { |
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| 253 | /* immaterial, will not be shown */ |
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| 254 | status = NULL; |
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| 255 | } else { |
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| 256 | goto done; |
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| 257 | } |
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| 258 | |
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| 259 | g_debug ("STATUS: %s", status); |
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| 260 | |
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| 261 | chooser_host = find_known_host (widget, address); |
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| 262 | if (chooser_host == NULL) { |
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| 263 | chooser_host = g_object_new (GDM_TYPE_CHOOSER_HOST, |
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| 264 | "address", address, |
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| 265 | "description", status, |
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| 266 | "willing", (header.opcode == WILLING), |
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| 267 | "kind", GDM_CHOOSER_HOST_KIND_XDMCP, |
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| 268 | NULL); |
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| 269 | chooser_host_add (widget, chooser_host); |
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| 270 | browser_add_host (widget, chooser_host); |
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| 271 | } else { |
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| 272 | /* server changed it's mind */ |
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| 273 | if (header.opcode == WILLING |
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| 274 | && ! gdm_chooser_host_get_willing (chooser_host)) { |
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| 275 | g_object_set (chooser_host, "willing", TRUE, NULL); |
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| 276 | browser_add_host (widget, chooser_host); |
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| 277 | } |
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| 278 | /* FIXME: handle unwilling? */ |
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| 279 | } |
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| 280 | |
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| 281 | done: |
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| 282 | if (header.opcode == WILLING) { |
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| 283 | XdmcpDisposeARRAY8 (&auth); |
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| 284 | XdmcpDisposeARRAY8 (&host); |
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| 285 | XdmcpDisposeARRAY8 (&stat); |
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| 286 | } |
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| 287 | |
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| 288 | g_free (status); |
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| 289 | gdm_address_free (address); |
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| 290 | |
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| 291 | return TRUE; |
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| 292 | } |
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| 293 | |
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| 294 | static void |
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| 295 | do_ping (GdmHostChooserWidget *widget, |
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| 296 | gboolean full) |
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| 297 | { |
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| 298 | GSList *l; |
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| 299 | |
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| 300 | g_debug ("do ping full:%d", full); |
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| 301 | |
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| 302 | for (l = widget->priv->broadcast_addresses; l != NULL; l = l->next) { |
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| 303 | GdmAddress *address; |
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| 304 | int res; |
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| 305 | |
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| 306 | address = l->data; |
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| 307 | |
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| 308 | gdm_address_debug (address); |
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| 309 | errno = 0; |
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| 310 | g_debug ("fd:%d", widget->priv->socket_fd); |
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| 311 | res = XdmcpFlush (widget->priv->socket_fd, |
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| 312 | &widget->priv->broadcast_buf, |
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| 313 | (XdmcpNetaddr)gdm_address_peek_sockaddr_storage (address), |
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| 314 | (int)sizeof (struct sockaddr_storage)); |
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| 315 | if (! res) { |
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| 316 | g_warning ("Unable to flush the XDMCP broadcast packet: %s", g_strerror (errno)); |
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| 317 | } |
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| 318 | } |
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| 319 | |
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| 320 | if (full) { |
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| 321 | for (l = widget->priv->query_addresses; l != NULL; l = l->next) { |
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| 322 | GdmAddress *address; |
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| 323 | int res; |
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| 324 | |
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| 325 | address = l->data; |
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| 326 | |
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| 327 | gdm_address_debug (address); |
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| 328 | res = XdmcpFlush (widget->priv->socket_fd, |
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| 329 | &widget->priv->query_buf, |
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| 330 | (XdmcpNetaddr)gdm_address_peek_sockaddr_storage (address), |
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| 331 | (int)sizeof (struct sockaddr_storage)); |
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| 332 | if (! res) { |
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| 333 | g_warning ("Unable to flush the XDMCP query packet"); |
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| 334 | } |
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| 335 | } |
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| 336 | } |
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| 337 | } |
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| 338 | |
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| 339 | static gboolean |
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| 340 | ping_try (GdmHostChooserWidget *widget) |
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| 341 | { |
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| 342 | do_ping (widget, FALSE); |
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| 343 | |
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| 344 | widget->priv->ping_tries --; |
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| 345 | |
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| 346 | if (widget->priv->ping_tries <= 0) { |
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| 347 | widget->priv->ping_try_id = 0; |
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| 348 | return FALSE; |
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| 349 | } else { |
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| 350 | return TRUE; |
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| 351 | } |
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| 352 | } |
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| 353 | |
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| 354 | static void |
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| 355 | xdmcp_discover (GdmHostChooserWidget *widget) |
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| 356 | { |
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| 357 | #if 0 |
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| 358 | gtk_widget_set_sensitive (GTK_WIDGET (manage), FALSE); |
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| 359 | gtk_widget_set_sensitive (GTK_WIDGET (rescan), FALSE); |
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| 360 | gtk_list_store_clear (GTK_LIST_STORE (browser_model)); |
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| 361 | gtk_widget_set_sensitive (GTK_WIDGET (browser), FALSE); |
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| 362 | gtk_label_set_label (GTK_LABEL (status_label), |
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| 363 | _(scanning_message)); |
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| 364 | |
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| 365 | while (hl) { |
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| 366 | gdm_chooser_host_dispose ((GdmChooserHost *) hl->data); |
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| 367 | hl = hl->next; |
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| 368 | } |
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| 369 | |
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| 370 | g_list_free (chooser_hosts); |
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| 371 | chooser_hosts = NULL; |
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| 372 | #endif |
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| 373 | |
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| 374 | do_ping (widget, TRUE); |
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| 375 | |
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| 376 | #if 0 |
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| 377 | if (widget->priv->scan_time_id > 0) { |
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| 378 | g_source_remove (widget->priv->scan_time_id); |
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| 379 | } |
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| 380 | |
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| 381 | widget->priv->scan_time_id = g_timeout_add_seconds (SCAN_TIMEOUT, |
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| 382 | chooser_scan_time_update, |
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| 383 | widget); |
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| 384 | #endif |
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| 385 | /* Note we already used up one try */ |
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| 386 | widget->priv->ping_tries = PING_TRIES - 1; |
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| 387 | if (widget->priv->ping_try_id > 0) { |
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| 388 | g_source_remove (widget->priv->ping_try_id); |
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| 389 | } |
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| 390 | |
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| 391 | widget->priv->ping_try_id = g_timeout_add_seconds (PING_TIMEOUT, |
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| 392 | (GSourceFunc)ping_try, |
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| 393 | widget); |
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| 394 | } |
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| 395 | |
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| 396 | /* Find broadcast address for all active, non pointopoint interfaces */ |
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| 397 | static void |
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| 398 | find_broadcast_addresses (GdmHostChooserWidget *widget) |
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| 399 | { |
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| 400 | int i; |
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| 401 | int num; |
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| 402 | int sock; |
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| 403 | struct ifconf ifc; |
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| 404 | char *buf; |
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| 405 | struct ifreq *ifr; |
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| 406 | |
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| 407 | g_debug ("Finding broadcast addresses"); |
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| 408 | |
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| 409 | sock = socket (AF_INET, SOCK_DGRAM, 0); |
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| 410 | #ifdef SIOCGIFNUM |
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| 411 | if (ioctl (sock, SIOCGIFNUM, &num) < 0) { |
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| 412 | num = 64; |
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| 413 | } |
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| 414 | #else |
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| 415 | num = 64; |
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| 416 | #endif |
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| 417 | |
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| 418 | ifc.ifc_len = sizeof (struct ifreq) * num; |
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| 419 | ifc.ifc_buf = buf = g_malloc0 (ifc.ifc_len); |
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| 420 | if (ioctl (sock, SIOCGIFCONF, &ifc) < 0) { |
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| 421 | g_warning ("Could not get local addresses!"); |
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| 422 | goto out; |
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| 423 | } |
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| 424 | |
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| 425 | ifr = ifc.ifc_req; |
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| 426 | num = ifc.ifc_len / sizeof (struct ifreq); |
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| 427 | for (i = 0 ; i < num ; i++) { |
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| 428 | const char *name; |
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| 429 | |
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| 430 | name = ifr[i].ifr_name; |
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| 431 | g_debug ("Checking if %s", name); |
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| 432 | if (name != NULL && name[0] != '\0') { |
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| 433 | struct ifreq ifreq; |
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| 434 | GdmAddress *address; |
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| 435 | struct sockaddr_in sin; |
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| 436 | |
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| 437 | memset (&ifreq, 0, sizeof (ifreq)); |
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| 438 | |
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| 439 | strncpy (ifreq.ifr_name, |
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| 440 | ifr[i].ifr_name, |
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| 441 | sizeof (ifreq.ifr_name)); |
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| 442 | /* paranoia */ |
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| 443 | ifreq.ifr_name[sizeof (ifreq.ifr_name) - 1] = '\0'; |
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| 444 | |
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| 445 | if (ioctl (sock, SIOCGIFFLAGS, &ifreq) < 0) { |
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| 446 | g_warning ("Could not get SIOCGIFFLAGS for %s", ifr[i].ifr_name); |
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| 447 | } |
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| 448 | |
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| 449 | if ((ifreq.ifr_flags & IFF_UP) == 0 || |
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| 450 | (ifreq.ifr_flags & IFF_BROADCAST) == 0 || |
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| 451 | ioctl (sock, SIOCGIFBRDADDR, &ifreq) < 0) { |
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| 452 | g_debug ("Skipping if %s", name); |
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| 453 | continue; |
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| 454 | } |
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| 455 | |
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| 456 | g_memmove (&sin, &ifreq.ifr_broadaddr, sizeof (struct sockaddr_in)); |
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| 457 | sin.sin_port = htons (XDM_UDP_PORT); |
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| 458 | address = gdm_address_new_from_sockaddr ((struct sockaddr *) &sin, sizeof (sin)); |
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| 459 | if (address != NULL) { |
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| 460 | g_debug ("Adding if %s", name); |
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| 461 | gdm_address_debug (address); |
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| 462 | |
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| 463 | widget->priv->broadcast_addresses = g_slist_append (widget->priv->broadcast_addresses, address); |
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| 464 | } |
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| 465 | } |
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| 466 | } |
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| 467 | out: |
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| 468 | g_free (buf); |
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| 469 | close (sock); |
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| 470 | } |
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| 471 | |
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| 472 | static void |
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| 473 | add_hosts (GdmHostChooserWidget *widget) |
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| 474 | { |
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| 475 | int i; |
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| 476 | |
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| 477 | for (i = 0; widget->priv->hosts != NULL && widget->priv->hosts[i] != NULL; i++) { |
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| 478 | struct addrinfo hints; |
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| 479 | struct addrinfo *result; |
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| 480 | struct addrinfo *ai; |
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| 481 | int gaierr; |
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| 482 | const char *name; |
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| 483 | char serv_buf [NI_MAXSERV]; |
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| 484 | const char *serv; |
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| 485 | |
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| 486 | name = widget->priv->hosts[i]; |
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| 487 | |
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| 488 | if (strcmp (name, "BROADCAST") == 0) { |
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| 489 | find_broadcast_addresses (widget); |
---|
| 490 | continue; |
---|
| 491 | } |
---|
| 492 | |
---|
| 493 | if (strcmp (name, "MULTICAST") == 0) { |
---|
| 494 | /*gdm_chooser_find_mcaddr ();*/ |
---|
| 495 | continue; |
---|
| 496 | } |
---|
| 497 | |
---|
| 498 | result = NULL; |
---|
| 499 | memset (&hints, 0, sizeof (hints)); |
---|
| 500 | hints.ai_socktype = SOCK_STREAM; |
---|
| 501 | |
---|
| 502 | snprintf (serv_buf, sizeof (serv_buf), "%u", XDM_UDP_PORT); |
---|
| 503 | serv = serv_buf; |
---|
| 504 | |
---|
| 505 | gaierr = getaddrinfo (name, serv, &hints, &result); |
---|
| 506 | if (gaierr != 0) { |
---|
| 507 | g_warning ("Unable to get address info for name %s: %s", name, gai_strerror (gaierr)); |
---|
| 508 | continue; |
---|
| 509 | } |
---|
| 510 | |
---|
| 511 | for (ai = result; ai != NULL; ai = ai->ai_next) { |
---|
| 512 | GdmAddress *address; |
---|
| 513 | |
---|
| 514 | address = gdm_address_new_from_sockaddr (ai->ai_addr, ai->ai_addrlen); |
---|
| 515 | if (address != NULL) { |
---|
| 516 | widget->priv->query_addresses = g_slist_append (widget->priv->query_addresses, address); |
---|
| 517 | } |
---|
| 518 | } |
---|
| 519 | |
---|
| 520 | freeaddrinfo (result); |
---|
| 521 | } |
---|
| 522 | |
---|
| 523 | if (widget->priv->broadcast_addresses == NULL && widget->priv->query_addresses == NULL) { |
---|
| 524 | find_broadcast_addresses (widget); |
---|
| 525 | } |
---|
| 526 | } |
---|
| 527 | |
---|
| 528 | static void |
---|
| 529 | xdmcp_init (GdmHostChooserWidget *widget) |
---|
| 530 | { |
---|
| 531 | XdmcpHeader header; |
---|
| 532 | int sockopts; |
---|
| 533 | int res; |
---|
| 534 | GIOChannel *ioc; |
---|
| 535 | ARRAYofARRAY8 aanames; |
---|
| 536 | |
---|
| 537 | sockopts = 1; |
---|
| 538 | |
---|
| 539 | widget->priv->socket_fd = -1; |
---|
| 540 | |
---|
| 541 | /* Open socket for communication */ |
---|
| 542 | #ifdef ENABLE_IPV6 |
---|
| 543 | widget->priv->socket_fd = socket (AF_INET6, SOCK_DGRAM, 0); |
---|
| 544 | if (widget->priv->socket_fd != -1) { |
---|
| 545 | widget->priv->have_ipv6 = TRUE; |
---|
| 546 | } |
---|
| 547 | #endif |
---|
| 548 | if (! widget->priv->have_ipv6) { |
---|
| 549 | widget->priv->socket_fd = socket (AF_INET, SOCK_DGRAM, 0); |
---|
| 550 | if (widget->priv->socket_fd == -1) { |
---|
| 551 | g_critical ("Could not create socket!"); |
---|
| 552 | } |
---|
| 553 | } |
---|
| 554 | |
---|
| 555 | res = setsockopt (widget->priv->socket_fd, |
---|
| 556 | SOL_SOCKET, |
---|
| 557 | SO_BROADCAST, |
---|
| 558 | (char *) &sockopts, |
---|
| 559 | sizeof (sockopts)); |
---|
| 560 | if (res < 0) { |
---|
| 561 | g_critical ("Could not set socket options!"); |
---|
| 562 | } |
---|
| 563 | |
---|
| 564 | /* Assemble XDMCP BROADCAST_QUERY packet in static buffer */ |
---|
| 565 | memset (&header, 0, sizeof (XdmcpHeader)); |
---|
| 566 | header.opcode = (CARD16) BROADCAST_QUERY; |
---|
| 567 | header.length = 1; |
---|
| 568 | header.version = XDM_PROTOCOL_VERSION; |
---|
| 569 | aanames.length = 0; |
---|
| 570 | XdmcpWriteHeader (&widget->priv->broadcast_buf, &header); |
---|
| 571 | XdmcpWriteARRAYofARRAY8 (&widget->priv->broadcast_buf, &aanames); |
---|
| 572 | |
---|
| 573 | /* Assemble XDMCP QUERY packet in static buffer */ |
---|
| 574 | memset (&header, 0, sizeof (XdmcpHeader)); |
---|
| 575 | header.opcode = (CARD16) QUERY; |
---|
| 576 | header.length = 1; |
---|
| 577 | header.version = XDM_PROTOCOL_VERSION; |
---|
| 578 | memset (&widget->priv->query_buf, 0, sizeof (XdmcpBuffer)); |
---|
| 579 | XdmcpWriteHeader (&widget->priv->query_buf, &header); |
---|
| 580 | XdmcpWriteARRAYofARRAY8 (&widget->priv->query_buf, &aanames); |
---|
| 581 | |
---|
| 582 | add_hosts (widget); |
---|
| 583 | |
---|
| 584 | ioc = g_io_channel_unix_new (widget->priv->socket_fd); |
---|
| 585 | g_io_channel_set_encoding (ioc, NULL, NULL); |
---|
| 586 | g_io_channel_set_buffered (ioc, FALSE); |
---|
| 587 | widget->priv->io_watch_id = g_io_add_watch (ioc, |
---|
| 588 | G_IO_IN | G_IO_PRI | G_IO_ERR | G_IO_HUP | G_IO_NVAL, |
---|
| 589 | (GIOFunc)decode_packet, |
---|
| 590 | widget); |
---|
| 591 | g_io_channel_unref (ioc); |
---|
| 592 | } |
---|
| 593 | |
---|
| 594 | void |
---|
| 595 | gdm_host_chooser_widget_refresh (GdmHostChooserWidget *widget) |
---|
| 596 | { |
---|
| 597 | g_return_if_fail (GDM_IS_HOST_CHOOSER_WIDGET (widget)); |
---|
| 598 | |
---|
| 599 | xdmcp_discover (widget); |
---|
| 600 | } |
---|
| 601 | |
---|
| 602 | GdmChooserHost * |
---|
| 603 | gdm_host_chooser_widget_get_host (GdmHostChooserWidget *widget) |
---|
| 604 | { |
---|
| 605 | GdmChooserHost *host; |
---|
| 606 | |
---|
| 607 | g_return_val_if_fail (GDM_IS_HOST_CHOOSER_WIDGET (widget), NULL); |
---|
| 608 | |
---|
| 609 | host = NULL; |
---|
| 610 | if (widget->priv->current_host != NULL) { |
---|
| 611 | host = g_object_ref (widget->priv->current_host); |
---|
| 612 | } |
---|
| 613 | |
---|
| 614 | return host; |
---|
| 615 | } |
---|
| 616 | |
---|
| 617 | static void |
---|
| 618 | _gdm_host_chooser_widget_set_kind_mask (GdmHostChooserWidget *widget, |
---|
| 619 | int kind_mask) |
---|
| 620 | { |
---|
| 621 | if (widget->priv->kind_mask != kind_mask) { |
---|
| 622 | widget->priv->kind_mask = kind_mask; |
---|
| 623 | } |
---|
| 624 | } |
---|
| 625 | |
---|
| 626 | static void |
---|
| 627 | gdm_host_chooser_widget_set_property (GObject *object, |
---|
| 628 | guint prop_id, |
---|
| 629 | const GValue *value, |
---|
| 630 | GParamSpec *pspec) |
---|
| 631 | { |
---|
| 632 | GdmHostChooserWidget *self; |
---|
| 633 | |
---|
| 634 | self = GDM_HOST_CHOOSER_WIDGET (object); |
---|
| 635 | |
---|
| 636 | switch (prop_id) { |
---|
| 637 | case PROP_KIND_MASK: |
---|
| 638 | _gdm_host_chooser_widget_set_kind_mask (self, g_value_get_int (value)); |
---|
| 639 | break; |
---|
| 640 | default: |
---|
| 641 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
---|
| 642 | break; |
---|
| 643 | } |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | static void |
---|
| 647 | gdm_host_chooser_widget_get_property (GObject *object, |
---|
| 648 | guint prop_id, |
---|
| 649 | GValue *value, |
---|
| 650 | GParamSpec *pspec) |
---|
| 651 | { |
---|
| 652 | switch (prop_id) { |
---|
| 653 | default: |
---|
| 654 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
---|
| 655 | break; |
---|
| 656 | } |
---|
| 657 | } |
---|
| 658 | |
---|
| 659 | static GObject * |
---|
| 660 | gdm_host_chooser_widget_constructor (GType type, |
---|
| 661 | guint n_construct_properties, |
---|
| 662 | GObjectConstructParam *construct_properties) |
---|
| 663 | { |
---|
| 664 | GdmHostChooserWidget *widget; |
---|
| 665 | |
---|
| 666 | widget = GDM_HOST_CHOOSER_WIDGET (G_OBJECT_CLASS (gdm_host_chooser_widget_parent_class)->constructor (type, |
---|
| 667 | n_construct_properties, |
---|
| 668 | construct_properties)); |
---|
| 669 | |
---|
| 670 | xdmcp_init (widget); |
---|
| 671 | xdmcp_discover (widget); |
---|
| 672 | |
---|
| 673 | return G_OBJECT (widget); |
---|
| 674 | } |
---|
| 675 | |
---|
| 676 | static void |
---|
| 677 | gdm_host_chooser_widget_dispose (GObject *object) |
---|
| 678 | { |
---|
| 679 | GdmHostChooserWidget *widget; |
---|
| 680 | |
---|
| 681 | widget = GDM_HOST_CHOOSER_WIDGET (object); |
---|
| 682 | |
---|
| 683 | g_debug ("Disposing host_chooser_widget"); |
---|
| 684 | |
---|
| 685 | if (widget->priv->broadcast_addresses != NULL) { |
---|
| 686 | g_slist_foreach (widget->priv->broadcast_addresses, |
---|
| 687 | (GFunc)gdm_address_free, |
---|
| 688 | NULL); |
---|
| 689 | g_slist_free (widget->priv->broadcast_addresses); |
---|
| 690 | widget->priv->broadcast_addresses = NULL; |
---|
| 691 | } |
---|
| 692 | if (widget->priv->query_addresses != NULL) { |
---|
| 693 | g_slist_foreach (widget->priv->query_addresses, |
---|
| 694 | (GFunc)gdm_address_free, |
---|
| 695 | NULL); |
---|
| 696 | g_slist_free (widget->priv->query_addresses); |
---|
| 697 | widget->priv->query_addresses = NULL; |
---|
| 698 | } |
---|
| 699 | if (widget->priv->chooser_hosts != NULL) { |
---|
| 700 | g_slist_foreach (widget->priv->chooser_hosts, |
---|
| 701 | (GFunc)g_object_unref, |
---|
| 702 | NULL); |
---|
| 703 | g_slist_free (widget->priv->chooser_hosts); |
---|
| 704 | widget->priv->chooser_hosts = NULL; |
---|
| 705 | } |
---|
| 706 | |
---|
| 707 | widget->priv->current_host = NULL; |
---|
| 708 | |
---|
| 709 | G_OBJECT_CLASS (gdm_host_chooser_widget_parent_class)->dispose (object); |
---|
| 710 | } |
---|
| 711 | |
---|
| 712 | static void |
---|
| 713 | gdm_host_chooser_widget_class_init (GdmHostChooserWidgetClass *klass) |
---|
| 714 | { |
---|
| 715 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
---|
| 716 | |
---|
| 717 | object_class->get_property = gdm_host_chooser_widget_get_property; |
---|
| 718 | object_class->set_property = gdm_host_chooser_widget_set_property; |
---|
| 719 | object_class->constructor = gdm_host_chooser_widget_constructor; |
---|
| 720 | object_class->dispose = gdm_host_chooser_widget_dispose; |
---|
| 721 | object_class->finalize = gdm_host_chooser_widget_finalize; |
---|
| 722 | |
---|
| 723 | g_object_class_install_property (object_class, |
---|
| 724 | PROP_KIND_MASK, |
---|
| 725 | g_param_spec_int ("kind-mask", |
---|
| 726 | "kind mask", |
---|
| 727 | "kind mask", |
---|
| 728 | 0, |
---|
| 729 | G_MAXINT, |
---|
| 730 | 0, |
---|
| 731 | G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); |
---|
| 732 | |
---|
| 733 | signals [HOST_ACTIVATED] = g_signal_new ("host-activated", |
---|
| 734 | G_TYPE_FROM_CLASS (object_class), |
---|
| 735 | G_SIGNAL_RUN_LAST, |
---|
| 736 | G_STRUCT_OFFSET (GdmHostChooserWidgetClass, host_activated), |
---|
| 737 | NULL, |
---|
| 738 | NULL, |
---|
| 739 | g_cclosure_marshal_VOID__VOID, |
---|
| 740 | G_TYPE_NONE, |
---|
| 741 | 0); |
---|
| 742 | |
---|
| 743 | g_type_class_add_private (klass, sizeof (GdmHostChooserWidgetPrivate)); |
---|
| 744 | } |
---|
| 745 | |
---|
| 746 | static void |
---|
| 747 | on_host_selected (GtkTreeSelection *selection, |
---|
| 748 | GdmHostChooserWidget *widget) |
---|
| 749 | { |
---|
| 750 | GtkTreeModel *model = NULL; |
---|
| 751 | GtkTreeIter iter = {0}; |
---|
| 752 | GdmChooserHost *curhost; |
---|
| 753 | |
---|
| 754 | curhost = NULL; |
---|
| 755 | |
---|
| 756 | if (gtk_tree_selection_get_selected (selection, &model, &iter)) { |
---|
| 757 | gtk_tree_model_get (model, &iter, CHOOSER_LIST_HOST_COLUMN, &curhost, -1); |
---|
| 758 | } |
---|
| 759 | |
---|
| 760 | widget->priv->current_host = curhost; |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | static void |
---|
| 764 | on_row_activated (GtkTreeView *tree_view, |
---|
| 765 | GtkTreePath *tree_path, |
---|
| 766 | GtkTreeViewColumn *tree_column, |
---|
| 767 | GdmHostChooserWidget *widget) |
---|
| 768 | { |
---|
| 769 | g_signal_emit (widget, signals[HOST_ACTIVATED], 0); |
---|
| 770 | } |
---|
| 771 | |
---|
| 772 | static void |
---|
| 773 | gdm_host_chooser_widget_init (GdmHostChooserWidget *widget) |
---|
| 774 | { |
---|
| 775 | GtkWidget *scrolled; |
---|
| 776 | GtkTreeSelection *selection; |
---|
| 777 | GtkTreeViewColumn *column; |
---|
| 778 | GtkTreeModel *model; |
---|
| 779 | |
---|
| 780 | widget->priv = GDM_HOST_CHOOSER_WIDGET_GET_PRIVATE (widget); |
---|
| 781 | |
---|
| 782 | scrolled = gtk_scrolled_window_new (NULL, NULL); |
---|
| 783 | gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled), |
---|
| 784 | GTK_SHADOW_IN); |
---|
| 785 | gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled), |
---|
| 786 | GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC); |
---|
| 787 | gtk_box_pack_start (GTK_BOX (widget), scrolled, TRUE, TRUE, 0); |
---|
| 788 | |
---|
| 789 | widget->priv->treeview = gtk_tree_view_new (); |
---|
| 790 | gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (widget->priv->treeview), FALSE); |
---|
| 791 | g_signal_connect (widget->priv->treeview, |
---|
| 792 | "row-activated", |
---|
| 793 | G_CALLBACK (on_row_activated), |
---|
| 794 | widget); |
---|
| 795 | gtk_container_add (GTK_CONTAINER (scrolled), widget->priv->treeview); |
---|
| 796 | |
---|
| 797 | selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget->priv->treeview)); |
---|
| 798 | gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE); |
---|
| 799 | g_signal_connect (selection, "changed", |
---|
| 800 | G_CALLBACK (on_host_selected), |
---|
| 801 | widget); |
---|
| 802 | |
---|
| 803 | model = (GtkTreeModel *)gtk_list_store_new (3, |
---|
| 804 | GDK_TYPE_PIXBUF, |
---|
| 805 | G_TYPE_STRING, |
---|
| 806 | G_TYPE_POINTER); |
---|
| 807 | gtk_tree_view_set_model (GTK_TREE_VIEW (widget->priv->treeview), model); |
---|
| 808 | |
---|
| 809 | column = gtk_tree_view_column_new_with_attributes ("Icon", |
---|
| 810 | gtk_cell_renderer_pixbuf_new (), |
---|
| 811 | "pixbuf", CHOOSER_LIST_ICON_COLUMN, |
---|
| 812 | NULL); |
---|
| 813 | gtk_tree_view_append_column (GTK_TREE_VIEW (widget->priv->treeview), column); |
---|
| 814 | |
---|
| 815 | column = gtk_tree_view_column_new_with_attributes ("Hostname", |
---|
| 816 | gtk_cell_renderer_text_new (), |
---|
| 817 | "markup", CHOOSER_LIST_LABEL_COLUMN, |
---|
| 818 | NULL); |
---|
| 819 | gtk_tree_view_append_column (GTK_TREE_VIEW (widget->priv->treeview), column); |
---|
| 820 | |
---|
| 821 | gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (model), |
---|
| 822 | CHOOSER_LIST_LABEL_COLUMN, |
---|
| 823 | GTK_SORT_ASCENDING); |
---|
| 824 | } |
---|
| 825 | |
---|
| 826 | static void |
---|
| 827 | gdm_host_chooser_widget_finalize (GObject *object) |
---|
| 828 | { |
---|
| 829 | GdmHostChooserWidget *host_chooser_widget; |
---|
| 830 | |
---|
| 831 | g_return_if_fail (object != NULL); |
---|
| 832 | g_return_if_fail (GDM_IS_HOST_CHOOSER_WIDGET (object)); |
---|
| 833 | |
---|
| 834 | host_chooser_widget = GDM_HOST_CHOOSER_WIDGET (object); |
---|
| 835 | |
---|
| 836 | g_return_if_fail (host_chooser_widget->priv != NULL); |
---|
| 837 | |
---|
| 838 | G_OBJECT_CLASS (gdm_host_chooser_widget_parent_class)->finalize (object); |
---|
| 839 | } |
---|
| 840 | |
---|
| 841 | GtkWidget * |
---|
| 842 | gdm_host_chooser_widget_new (int kind_mask) |
---|
| 843 | { |
---|
| 844 | GObject *object; |
---|
| 845 | |
---|
| 846 | object = g_object_new (GDM_TYPE_HOST_CHOOSER_WIDGET, |
---|
| 847 | "kind-mask", kind_mask, |
---|
| 848 | NULL); |
---|
| 849 | |
---|
| 850 | return GTK_WIDGET (object); |
---|
| 851 | } |
---|