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/*
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* Virt Viewer: A virtual machine console viewer
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*
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* Copyright (C) 2007 Red Hat,
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#define _GNU_SOURCE
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#include <vncdisplay.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <libvirt/libvirt.h>
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#include <libxml/xpath.h>
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#define DEBUG 1
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#ifdef DEBUG
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#define DEBUG_LOG(s, ...) fprintf(stderr, (s), ## __VA_ARGS__)
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#else
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#define DEBUG_LOG(s, ...) do {} while (0)
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#endif
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static int verbose = 0;
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#define MAX_KEY_COMBO 3
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struct keyComboDef {
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guint keys[MAX_KEY_COMBO];
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guint nkeys;
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const char *label;
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};
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static const struct keyComboDef keyCombos[] = {
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{ { GDK_Control_L, GDK_Alt_L, GDK_Delete }, 3, "Ctrl+Alt+_Del"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_BackSpace }, 3, "Ctrl+Alt+_Backspace"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F1 }, 3, "Ctrl+Alt+F_1"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F2 }, 3, "Ctrl+Alt+F_2"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F3 }, 3, "Ctrl+Alt+F_3"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F4 }, 3, "Ctrl+Alt+F_4"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F5 }, 3, "Ctrl+Alt+F_5"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F6 }, 3, "Ctrl+Alt+F_6"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F7 }, 3, "Ctrl+Alt+F_7"},
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{ { GDK_Control_L, GDK_Alt_L, GDK_F8 }, 3, "Ctrl+Alt+F_8"},
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{ { GDK_Print }, 1, "_PrintScreen"},
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};
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static void viewer_set_title(VncDisplay *vnc, GtkWidget *window, gboolean grabbed)
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{
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const char *name;
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char title[1024];
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const char *subtitle;
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if (grabbed)
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subtitle = "(Press Ctrl+Alt to release pointer) ";
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else
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subtitle = "";
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name = vnc_display_get_name(VNC_DISPLAY(vnc));
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snprintf(title, sizeof(title), "%s%s - Virt Viewer",
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subtitle, name);
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gtk_window_set_title(GTK_WINDOW(window), title);
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}
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static void viewer_grab(GtkWidget *vnc, GtkWidget *window)
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{
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viewer_set_title(VNC_DISPLAY(vnc), window, TRUE);
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}
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static void viewer_ungrab(GtkWidget *vnc, GtkWidget *window)
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{
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viewer_set_title(VNC_DISPLAY(vnc), window, FALSE);
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}
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static void viewer_shutdown(GtkWidget *src G_GNUC_UNUSED, GtkWidget *vnc)
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{
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vnc_display_close(VNC_DISPLAY(vnc));
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gtk_main_quit();
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}
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static void viewer_connected(GtkWidget *vnc G_GNUC_UNUSED)
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{
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DEBUG_LOG("Connected to server\n");
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}
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static void viewer_initialized(GtkWidget *vnc, GtkWidget *window)
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{
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DEBUG_LOG("Connection initialized\n");
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gtk_widget_show_all(window);
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viewer_set_title(VNC_DISPLAY(vnc), window, FALSE);
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}
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static void viewer_disconnected(GtkWidget *vnc G_GNUC_UNUSED)
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{
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DEBUG_LOG("Disconnected from server\n");
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gtk_main_quit();
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}
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static void viewer_send_key(GtkWidget *menu, GtkWidget *vnc)
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{
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int i;
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GtkWidget *label = gtk_bin_get_child(GTK_BIN(menu));
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const char *text = gtk_label_get_label(GTK_LABEL(label));
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for (i = 0 ; i < (sizeof(keyCombos)/sizeof(keyCombos[0])) ; i++) {
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if (!strcmp(text, keyCombos[i].label)) {
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DEBUG_LOG("Sending key combo %s\n", gtk_label_get_text(GTK_LABEL(label)));
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vnc_display_send_keys(VNC_DISPLAY(vnc),
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keyCombos[i].keys,
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keyCombos[i].nkeys);
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return;
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}
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}
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DEBUG_LOG("Failed to find key combo %s\n", gtk_label_get_text(GTK_LABEL(label)));
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}
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#if 0
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static void viewer_save_screenshot(GtkWidget *vnc, const char *file)
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{
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GdkPixbuf *pix = vnc_display_get_pixbuf(VNC_DISPLAY(vnc));
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gdk_pixbuf_save(pix, file, "png", NULL,
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"tEXt::Generator App", PACKAGE, NULL);
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gdk_pixbuf_unref(pix);
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}
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static void viewer_screenshot(GtkWidget *menu, GtkWidget *vnc)
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{
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GtkWidget *dialog;
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dialog = gtk_file_chooser_dialog_new ("Save screenshot",
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NULL,
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GTK_FILE_CHOOSER_ACTION_SAVE,
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GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
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GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
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NULL);
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gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
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//gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), default_folder_for_saving);
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//gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dialog), "Screenshot");
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if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT) {
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char *filename;
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filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
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viewer_save_screenshot(vnc, filename);
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g_free (filename);
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}
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gtk_widget_destroy (dialog);
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}
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#endif
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static void viewer_credential(GtkWidget *vnc, GValueArray *credList)
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{
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GtkWidget *dialog, **label, **entry, *box, *vbox;
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int response;
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unsigned int i;
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DEBUG_LOG("Got credential request for %d credential(s)\n", credList->n_values);
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dialog = gtk_dialog_new_with_buttons("Authentication required",
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NULL,
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0,
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GTK_STOCK_CANCEL,
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GTK_RESPONSE_CANCEL,
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GTK_STOCK_OK,
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GTK_RESPONSE_OK,
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NULL);
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gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
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box = gtk_table_new(credList->n_values, 2, FALSE);
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label = g_new(GtkWidget *, credList->n_values);
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entry = g_new(GtkWidget *, credList->n_values);
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for (i = 0 ; i < credList->n_values ; i++) {
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GValue *cred = g_value_array_get_nth(credList, i);
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int credType = g_value_get_enum(cred);
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switch (credType) {
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case VNC_DISPLAY_CREDENTIAL_USERNAME:
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label[i] = gtk_label_new("Username:");
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break;
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default:
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label[i] = gtk_label_new("Password:");
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break;
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}
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entry[i] = gtk_entry_new();
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gtk_table_attach(GTK_TABLE(box), label[i], 0, 1, i, i+1, GTK_SHRINK, GTK_SHRINK, 3, 3);
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gtk_table_attach(GTK_TABLE(box), entry[i], 1, 2, i, i+1, GTK_SHRINK, GTK_SHRINK, 3, 3);
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}
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vbox = gtk_bin_get_child(GTK_BIN(dialog));
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gtk_container_add(GTK_CONTAINER(vbox), box);
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gtk_widget_show_all(dialog);
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response = gtk_dialog_run(GTK_DIALOG(dialog));
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gtk_widget_hide(GTK_WIDGET(dialog));
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if (response == GTK_RESPONSE_OK) {
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for (i = 0 ; i < credList->n_values ; i++) {
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GValue *cred = g_value_array_get_nth(credList, i);
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int credType = g_value_get_enum(cred);
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const char *data = gtk_entry_get_text(GTK_ENTRY(entry[i]));
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vnc_display_set_credential(VNC_DISPLAY(vnc), credType, data);
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}
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} else {
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DEBUG_LOG("Aborting connection\n");
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vnc_display_close(VNC_DISPLAY(vnc));
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}
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gtk_widget_destroy(GTK_WIDGET(dialog));
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}
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static GtkWidget *viewer_build_file_menu(VncDisplay *vnc)
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{
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GtkWidget *file;
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GtkWidget *filemenu;
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GtkWidget *quit;
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file = gtk_menu_item_new_with_mnemonic("_File");
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filemenu = gtk_menu_new();
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gtk_menu_item_set_submenu(GTK_MENU_ITEM(file), filemenu);
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quit = gtk_image_menu_item_new_from_stock(GTK_STOCK_QUIT, NULL);
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gtk_menu_append(GTK_MENU(filemenu), quit);
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g_signal_connect(quit, "activate", GTK_SIGNAL_FUNC(viewer_shutdown), vnc);
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return file;
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}
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static GtkWidget *viewer_build_sendkey_menu(VncDisplay *vnc)
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{
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GtkWidget *sendkey;
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GtkWidget *sendkeymenu;
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int i;
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sendkey = gtk_menu_item_new_with_mnemonic("_Send Key");
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sendkeymenu = gtk_menu_new();
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gtk_menu_item_set_submenu(GTK_MENU_ITEM(sendkey), sendkeymenu);
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for (i = 0 ; i < (sizeof(keyCombos)/sizeof(keyCombos[0])) ; i++) {
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GtkWidget *key;
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key = gtk_menu_item_new_with_mnemonic(keyCombos[i].label);
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gtk_menu_append(GTK_MENU(sendkeymenu), key);
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g_signal_connect(key, "activate", GTK_SIGNAL_FUNC(viewer_send_key), vnc);
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}
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return sendkey;
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}
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static GtkWidget *viewer_build_help_menu(void)
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{
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GtkWidget *help;
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GtkWidget *helpmenu;
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GtkWidget *about;
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help = gtk_menu_item_new_with_mnemonic("_Help");
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helpmenu = gtk_menu_new();
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gtk_menu_item_set_submenu(GTK_MENU_ITEM(help), helpmenu);
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about = gtk_image_menu_item_new_from_stock(GTK_STOCK_ABOUT, NULL);
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gtk_menu_append(GTK_MENU(helpmenu), about);
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//g_signal_connect(about, "activate", GTK_SIGNAL_FUNC(viewer_shutdown), vnc);
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return help;
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}
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static GtkWidget *viewer_build_menu(VncDisplay *vnc)
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{
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GtkWidget *menubar;
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GtkWidget *file;
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GtkWidget *sendkey;
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GtkWidget *help;
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menubar = gtk_menu_bar_new();
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file = viewer_build_file_menu(vnc);
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sendkey = viewer_build_sendkey_menu(vnc);
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help = viewer_build_help_menu();
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gtk_menu_bar_append(GTK_MENU_BAR(menubar), file);
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gtk_menu_bar_append(GTK_MENU_BAR(menubar), sendkey);
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gtk_menu_bar_append(GTK_MENU_BAR(menubar), help);
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return menubar;
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}
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static GtkWidget *viewer_build_window(VncDisplay *vnc)
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{
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GtkWidget *window;
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GtkWidget *menubar;
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GtkWidget *layout;
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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layout = gtk_vbox_new(FALSE, 3);
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menubar = viewer_build_menu(vnc);
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gtk_container_add(GTK_CONTAINER(window), layout);
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gtk_container_add(GTK_CONTAINER(layout), menubar);
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gtk_container_add(GTK_CONTAINER(layout), GTK_WIDGET(vnc));
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gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
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gtk_signal_connect(GTK_OBJECT(vnc), "vnc-pointer-grab",
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GTK_SIGNAL_FUNC(viewer_grab), window);
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gtk_signal_connect(GTK_OBJECT(vnc), "vnc-pointer-ungrab",
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GTK_SIGNAL_FUNC(viewer_ungrab), window);
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gtk_signal_connect(GTK_OBJECT(window), "delete-event",
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GTK_SIGNAL_FUNC(viewer_shutdown), vnc);
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gtk_signal_connect(GTK_OBJECT(vnc), "vnc-connected",
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GTK_SIGNAL_FUNC(viewer_connected), NULL);
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gtk_signal_connect(GTK_OBJECT(vnc), "vnc-initialized",
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GTK_SIGNAL_FUNC(viewer_initialized), window);
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gtk_signal_connect(GTK_OBJECT(vnc), "vnc-disconnected",
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GTK_SIGNAL_FUNC(viewer_disconnected), NULL);
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g_signal_connect(GTK_OBJECT(vnc), "vnc-auth-credential",
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GTK_SIGNAL_FUNC(viewer_credential), NULL);
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return window;
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}
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static void viewer_version(FILE *out)
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{
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fprintf(out, "%s version %s\n", PACKAGE, VERSION);
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}
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static void viewer_help(FILE *out, const char *app)
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{
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fprintf(out, "\n");
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fprintf(out, "syntax: %s [OPTIONS] DOMAIN-NAME|ID|UUID\n", app);
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fprintf(out, "\n");
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viewer_version(out);
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fprintf(out, "\n");
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fprintf(out, "Options:");
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fprintf(out, " -h, --help display command line help\n");
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fprintf(out, " -v, --verbose display verbose information\n");
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fprintf(out, " -V, --version display verion informaton\n");
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fprintf(out, " -c URI, --connect URI connect to hypervisor URI\n");
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fprintf(out, " -w, --wait wait for domain to start\n");
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fprintf(out, "\n");
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}
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|
370 |
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|
371 |
static int viewer_parse_uuid(const char *name, unsigned char *uuid)
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|
372 |
{
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|
373 |
int i;
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|
374 |
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|
375 |
const char *cur = name;
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|
376 |
for (i = 0;i < 16;) {
|
|
377 |
uuid[i] = 0;
|
|
378 |
if (*cur == 0)
|
|
379 |
return -1;
|
|
380 |
if ((*cur == '-') || (*cur == ' ')) {
|
|
381 |
cur++;
|
|
382 |
continue;
|
|
383 |
}
|
|
384 |
if ((*cur >= '0') && (*cur <= '9'))
|
|
385 |
uuid[i] = *cur - '0';
|
|
386 |
else if ((*cur >= 'a') && (*cur <= 'f'))
|
|
387 |
uuid[i] = *cur - 'a' + 10;
|
|
388 |
else if ((*cur >= 'A') && (*cur <= 'F'))
|
|
389 |
uuid[i] = *cur - 'A' + 10;
|
|
390 |
else
|
|
391 |
return -1;
|
|
392 |
uuid[i] *= 16;
|
|
393 |
cur++;
|
|
394 |
if (*cur == 0)
|
|
395 |
return -1;
|
|
396 |
if ((*cur >= '0') && (*cur <= '9'))
|
|
397 |
uuid[i] += *cur - '0';
|
|
398 |
else if ((*cur >= 'a') && (*cur <= 'f'))
|
|
399 |
uuid[i] += *cur - 'a' + 10;
|
|
400 |
else if ((*cur >= 'A') && (*cur <= 'F'))
|
|
401 |
uuid[i] += *cur - 'A' + 10;
|
|
402 |
else
|
|
403 |
return -1;
|
|
404 |
i++;
|
|
405 |
cur++;
|
|
406 |
}
|
|
407 |
|
|
408 |
return 0;
|
|
409 |
}
|
|
410 |
|
|
411 |
|
|
412 |
static virDomainPtr viewer_lookup_domain(virConnectPtr conn, const char *name)
|
|
413 |
{
|
|
414 |
char *end;
|
|
415 |
int id = strtol(name, &end, 10);
|
|
416 |
virDomainPtr dom = NULL;
|
|
417 |
unsigned char uuid[16];
|
|
418 |
|
|
419 |
if (id >= 0 && end && !*end) {
|
|
420 |
dom = virDomainLookupByID(conn, id);
|
|
421 |
}
|
|
422 |
if (!dom && viewer_parse_uuid(name, uuid) == 0) {
|
|
423 |
dom = virDomainLookupByUUID(conn, uuid);
|
|
424 |
}
|
|
425 |
if (!dom) {
|
|
426 |
dom = virDomainLookupByName(conn, name);
|
|
427 |
}
|
|
428 |
return dom;
|
|
429 |
}
|
|
430 |
|
|
431 |
static int viewer_extract_vnc_graphics(virDomainPtr dom, char **host, char **port)
|
|
432 |
{
|
|
433 |
char *xmldesc = virDomainGetXMLDesc(dom, 0);
|
|
434 |
xmlDocPtr xml = NULL;
|
|
435 |
xmlParserCtxtPtr pctxt = NULL;
|
|
436 |
xmlXPathContextPtr ctxt = NULL;
|
|
437 |
xmlXPathObjectPtr obj = NULL;
|
|
438 |
int ret = -1;
|
|
439 |
|
|
440 |
pctxt = xmlNewParserCtxt();
|
|
441 |
if (!pctxt || !pctxt->sax)
|
|
442 |
goto error;
|
|
443 |
|
|
444 |
xml = xmlCtxtReadDoc(pctxt, (const xmlChar *)xmldesc, "domain.xml", NULL,
|
|
445 |
XML_PARSE_NOENT | XML_PARSE_NONET |
|
|
446 |
XML_PARSE_NOWARNING);
|
|
447 |
free(xmldesc);
|
|
448 |
if (!xml)
|
|
449 |
goto error;
|
|
450 |
|
|
451 |
ctxt = xmlXPathNewContext(xml);
|
|
452 |
if (!ctxt)
|
|
453 |
goto error;
|
|
454 |
|
|
455 |
obj = xmlXPathEval((const xmlChar *)"string(/domain/devices/graphics[@type='vnc']/@port)", ctxt);
|
|
456 |
if (!obj || obj->type != XPATH_STRING || !obj->stringval || !obj->stringval[0])
|
|
457 |
goto error;
|
|
458 |
if (!strcmp((const char*)obj->stringval, "-1"))
|
|
459 |
goto missing;
|
|
460 |
|
|
461 |
*port = strdup((const char*)obj->stringval);
|
|
462 |
xmlXPathFreeObject(obj);
|
|
463 |
obj = NULL;
|
|
464 |
/*
|
|
465 |
obj = xmlXPathEval((const xmlChar *)"string(/domain/devices/graphics[@type='vnc']/@listen)", ctxt);
|
|
466 |
if (!obj || obj->type != XPATH_STRING || !obj->stringval || !obj->stringval[0])
|
|
467 |
*/
|
|
468 |
*host = NULL;
|
|
469 |
|
|
470 |
missing:
|
|
471 |
ret = 0;
|
|
472 |
|
|
473 |
error:
|
|
474 |
if (obj)
|
|
475 |
xmlXPathFreeObject(obj);
|
|
476 |
if (ctxt)
|
|
477 |
xmlXPathFreeContext(ctxt);
|
|
478 |
if (xml)
|
|
479 |
xmlFreeDoc(xml);
|
|
480 |
if (pctxt)
|
|
481 |
xmlFreeParserCtxt(pctxt);
|
|
482 |
return ret;
|
|
483 |
}
|
|
484 |
|
|
485 |
int main(int argc, char **argv)
|
|
486 |
{
|
|
487 |
GtkWidget *window;
|
|
488 |
GtkWidget *vnc;
|
|
489 |
char *uri = NULL;
|
|
490 |
int opt_ind;
|
|
491 |
const char *sopts = "hVc:";
|
|
492 |
static const struct option lopts[] = {
|
|
493 |
{ "help", 0, 0, 'h' },
|
|
494 |
{ "version", 0, 0, 'V' },
|
|
495 |
{ "verbose", 0, 0, 'v' },
|
|
496 |
{ "connect", 1, 0, 'c' },
|
|
497 |
{ "wait", 0, 0, 'w' },
|
|
498 |
{ 0, 0, 0, 0 }
|
|
499 |
};
|
|
500 |
int ch;
|
|
501 |
int waitvnc = 0;
|
|
502 |
virConnectPtr conn = NULL;
|
|
503 |
virDomainPtr dom = NULL;
|
|
504 |
char *host = NULL;
|
|
505 |
char *port = NULL;
|
|
506 |
|
|
507 |
while ((ch = getopt_long(argc, argv, sopts, lopts, &opt_ind)) != -1) {
|
|
508 |
switch (ch) {
|
|
509 |
case 'h':
|
|
510 |
viewer_help(stdout, argv[0]);
|
|
511 |
return 0;
|
|
512 |
case 'V':
|
|
513 |
viewer_version(stdout);
|
|
514 |
return 0;
|
|
515 |
case 'v':
|
|
516 |
verbose = 1;
|
|
517 |
break;
|
|
518 |
case 'c':
|
|
519 |
uri = strdup(optarg);
|
|
520 |
break;
|
|
521 |
case 'w':
|
|
522 |
waitvnc = 1;
|
|
523 |
break;
|
|
524 |
case '?':
|
|
525 |
viewer_help(stderr, argv[0]);
|
|
526 |
return 1;
|
|
527 |
}
|
|
528 |
}
|
|
529 |
|
|
530 |
|
|
531 |
if (argc != (optind+1)) {
|
|
532 |
viewer_help(stderr, argv[0]);
|
|
533 |
return 1;
|
|
534 |
}
|
|
535 |
|
|
536 |
gtk_init(&argc, &argv);
|
|
537 |
|
|
538 |
conn = virConnectOpenReadOnly(uri);
|
|
539 |
if (!conn) {
|
|
540 |
fprintf(stderr, "unable to connect to libvirt %s\n",
|
|
541 |
uri ? uri : "xen");
|
|
542 |
return 2;
|
|
543 |
}
|
|
544 |
|
|
545 |
do {
|
|
546 |
dom = viewer_lookup_domain(conn, argv[optind]);
|
|
547 |
if (!dom && !waitvnc) {
|
|
548 |
fprintf(stderr, "unable to lookup domain %s\n", argv[optind]);
|
|
549 |
return 3;
|
|
550 |
}
|
|
551 |
usleep(500*1000);
|
|
552 |
} while (!dom);
|
|
553 |
|
|
554 |
do {
|
|
555 |
viewer_extract_vnc_graphics(dom, &host, &port);
|
|
556 |
if (!port && !waitvnc) {
|
|
557 |
fprintf(stderr, "unable to find vnc graphics for %s\n", argv[optind]);
|
|
558 |
return 4;
|
|
559 |
}
|
|
560 |
usleep(300*1000);
|
|
561 |
} while (!port);
|
|
562 |
|
|
563 |
if (!host)
|
|
564 |
host = strdup("localhost");
|
|
565 |
|
|
566 |
vnc = vnc_display_new();
|
|
567 |
window = viewer_build_window(VNC_DISPLAY(vnc));
|
|
568 |
gtk_widget_realize(vnc);
|
|
569 |
|
|
570 |
vnc_display_set_keyboard_grab(VNC_DISPLAY(vnc), TRUE);
|
|
571 |
vnc_display_set_pointer_grab(VNC_DISPLAY(vnc), TRUE);
|
|
572 |
|
|
573 |
vnc_display_open_host(VNC_DISPLAY(vnc), host, port);
|
|
574 |
|
|
575 |
gtk_main();
|
|
576 |
|
|
577 |
return 0;
|
|
578 |
}
|
|
579 |
|
|
580 |
/*
|
|
581 |
* Local variables:
|
|
582 |
* c-indent-level: 8
|
|
583 |
* c-basic-offset: 8
|
|
584 |
* tab-width: 8
|
|
585 |
* End:
|
|
586 |
*/
|