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/* $Id$ */
/*-
* Copyright (c) 2004 Benedikt Meurer <benny@xfce.org>
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA.
*
* Parts of this file where taken from gnome-session/main.c, which
* was written by Tom Tromey.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#ifdef HAVE_MEMORY_H
#include <memory.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <gtk/gtk.h>
#include <libxfce4ui/libxfce4ui.h>
#include <libxfsm/xfsm-util.h>
#include <xfce4-session/xfsm-dns.h>
#include <xfce4-session/xfsm-global.h>
static gchar*
queryhostname (gchar *buffer, gsize length, gboolean readable)
{
#ifdef HAVE_GETHOSTNAME
if (gethostname (buffer, length) == 0)
return buffer;
#else
struct utsname utsname;
if (uname (&utsname) == 0)
{
g_strlcpy (buffer, utsname.nodename, length);
return buffer;
}
#endif
if (readable)
{
g_strlcpy (buffer, _("(Unknown)"), length);
return buffer;
}
return NULL;
}
static gboolean
check_for_dns (void)
{
#ifdef HAVE_GETADDRINFO
struct addrinfo *result = NULL;
struct addrinfo hints;
#endif
char buffer[256];
gchar *hostname;
hostname = queryhostname (buffer, 256, FALSE);
if (hostname == NULL)
return FALSE;
#ifdef HAVE_GETADDRINFO
bzero (&hints, sizeof (hints));
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_CANONNAME;
if (getaddrinfo (hostname, NULL, &hints, &result) != 0)
return FALSE;
if (g_ascii_strncasecmp (result->ai_canonname, hostname, 0) != 0)
{
freeaddrinfo (result);
return FALSE;
}
freeaddrinfo (result);
#else
#ifdef HAVE_GETHOSTBYNAME
if (gethostbyname (hostname) == NULL)
{
return FALSE;
}
#endif
#endif
return TRUE;
}
enum
{
RESPONSE_LOG_IN,
RESPONSE_TRY_AGAIN,
};
void
xfsm_dns_check (void)
{
GtkWidget *msgbox = NULL;
gchar hostname[256];
gint response;
while (!check_for_dns ())
{
if (msgbox == NULL)
{
GdkScreen *screen = xfce_gdk_screen_get_active (NULL);
queryhostname (hostname, 256, TRUE);
msgbox = gtk_message_dialog_new (NULL, 0,
GTK_MESSAGE_WARNING,
GTK_BUTTONS_NONE,
_("Could not look up internet address for %s.\n"
"This will prevent Xfce from operating correctly.\n"
"It may be possible to correct the problem by adding\n"
"%s to the file /etc/hosts on your system."),
hostname, hostname);
gtk_dialog_add_buttons (GTK_DIALOG (msgbox),
_("Continue anyway"), RESPONSE_LOG_IN,
_("Try again"), RESPONSE_TRY_AGAIN,
NULL);
gtk_window_set_screen (GTK_WINDOW (msgbox), screen);
gtk_container_set_border_width (GTK_CONTAINER (msgbox), 6);
gtk_window_set_position (GTK_WINDOW (msgbox), GTK_WIN_POS_CENTER);
}
gtk_dialog_set_default_response (GTK_DIALOG (msgbox), RESPONSE_TRY_AGAIN);
response = gtk_dialog_run (GTK_DIALOG (msgbox));
if (response != RESPONSE_TRY_AGAIN)
break;
gtk_widget_hide (msgbox);
}
if (msgbox != NULL)
gtk_widget_destroy (msgbox);
}
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