Desktop
/* $Id: usb.c,v 1.7 2012/01/07 02:58:13 khorben Exp $ */
/* Copyright (c) 2011-2012 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Panel */
/* 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, version 3 of the License.
*
* 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, see <http://www.gnu.org/licenses/>. */
#if defined(__NetBSD__) || defined(__linux__)
# include <sys/types.h>
# include <sys/ioctl.h>
# include <net/if.h>
# include <unistd.h>
# include <stdio.h>
# include <string.h>
# include <errno.h>
#endif
#include <stdlib.h>
#include <libintl.h>
#include <System.h>
#include "Panel.h"
#define _(string) gettext(string)
/* USB */
/* private */
/* types */
typedef struct _PanelApplet
{
PanelAppletHelper * helper;
GtkWidget * image;
guint timeout;
#if defined(__NetBSD__) || defined(__linux__)
int fd;
#endif
} USB;
/* prototypes */
static USB * _usb_init(PanelAppletHelper * helper, GtkWidget ** widget);
static void _usb_destroy(USB * usb);
static gboolean _usb_get(USB * usb);
static void _usb_set(USB * usb, gboolean on);
/* callbacks */
static gboolean _on_timeout(gpointer data);
/* public */
/* variables */
PanelAppletDefinition applet =
{
"USB",
"panel-applet-usb",
NULL,
_usb_init,
_usb_destroy,
NULL,
FALSE,
TRUE
};
/* private */
/* functions */
/* usb_init */
static USB * _usb_init(PanelAppletHelper * helper, GtkWidget ** widget)
{
USB * usb;
#if GTK_CHECK_VERSION(2, 12, 0)
char const * tooltip = NULL;
#endif
if((usb = malloc(sizeof(*usb))) == NULL)
return NULL;
usb->helper = helper;
usb->timeout = 0;
#if defined(__NetBSD__) || defined(__linux__)
usb->fd = -1;
tooltip = _("USB networking device connected");
#endif
usb->image = gtk_image_new_from_icon_name("panel-applet-usb",
helper->icon_size);
#if GTK_CHECK_VERSION(2, 12, 0)
if(tooltip != NULL)
gtk_widget_set_tooltip_text(usb->image, tooltip);
#endif
usb->timeout = g_timeout_add(1000, _on_timeout, usb);
_on_timeout(usb);
*widget = usb->image;
return usb;
}
/* usb_destroy */
static void _usb_destroy(USB * usb)
{
if(usb->timeout > 0)
g_source_remove(usb->timeout);
#if defined(__NetBSD__) || defined(__linux__)
if(usb->fd >= 0)
close(usb->fd);
#endif
free(usb);
}
/* usb_set */
static void _usb_set(USB * usb, gboolean on)
{
if(on == TRUE)
gtk_widget_show(usb->image);
else
gtk_widget_hide(usb->image);
}
/* callbacks */
/* on_timeout */
#if defined(__NetBSD__) || defined(__linux__)
static gboolean _usb_get(USB * usb)
{
struct ifreq ifr;
# if defined(__NetBSD__)
const char name[] = "cdce0";
# elif defined(__linux__)
const char name[] = "usb0";
#endif
if(usb->fd < 0 && (usb->fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
error_set("%s: %s", "socket", strerror(errno));
return FALSE;
}
memset(&ifr, 0, sizeof(ifr));
snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s", name);
if(ioctl(usb->fd, SIOCGIFFLAGS, &ifr) == -1)
{
error_set("%s: %s", name, strerror(errno));
close(usb->fd);
usb->fd = -1;
return FALSE;
}
close(usb->fd);
usb->fd = -1;
return TRUE;
}
#else
static gboolean _usb_get(USB * usb)
{
/* FIXME not supported */
return FALSE;
}
#endif
/* callbacks */
/* on_timeout */
static gboolean _on_timeout(gpointer data)
{
USB * usb = data;
_usb_set(usb, _usb_get(usb));
return TRUE;
}