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/*
* Copyright (C) 2011 Nokia Corporation.
* Copyright (C) 2014 Jens Georg <mail@jensge.org>
*
* Author: Jens Georg <jensg@openismus.com>
* <mail@jensge.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <glib.h>
#include <libgssdp/gssdp.h>
#include <stdlib.h>
#include <string.h>
static char *interface = NULL;
static char *target = NULL;
static char *message_type = NULL;
static int timeout = 0;
static int rescan_interval = 0;
typedef struct _GSSDPDiscover {
GMainLoop *main_loop;
GSSDPClient *client;
GSSDPResourceBrowser *browser;
} GSSDPDiscover;
static GOptionEntry entries[] =
{
{ "interface", 'i', 0, G_OPTION_ARG_STRING, &interface, "Network INTERFACE to use", "INTERFACE" },
{ "target", 't', 0, G_OPTION_ARG_STRING, &target, "SSDP TARGET to search for (default: ssdp:all)", "TARGET" },
{ "timeout", 'n', 0, G_OPTION_ARG_INT, &timeout, "TIME in seconds to wait for replies before exiting", "TIME" },
{ "rescan-interval", 'r', 0, G_OPTION_ARG_INT, &rescan_interval, "TIME in seconds to wait before sending another discovery request", "TIME" },
{ "message-type", 'm', 0, G_OPTION_ARG_STRING, &message_type, "TYPE of message (available,unavailable,all)", "TYPE" },
{ NULL }
};
static gboolean
on_force_rescan_timeout (GSSDPDiscover *discover) {
gssdp_resource_browser_set_active (discover->browser,
FALSE);
gssdp_resource_browser_set_active (discover->browser,
TRUE);
return TRUE;
}
static void
on_resource_available (GSSDPResourceBrowser *browser,
const char *usn,
GList *locations)
{
GList *l;
g_print ("resource available\n"
" USN: %s\n",
usn);
for (l = locations; l; l = l->next)
g_print (" Location: %s\n", (char *) l->data);
}
static void
on_resource_unavailable (GSSDPResourceBrowser *browser,
const char *usn)
{
g_print ("resource unavailable\n"
" USN: %s\n",
usn);
}
int main (int argc, char *argv[]) {
GError *error = NULL;
GOptionContext *context;
GSSDPDiscover discover;
#if !GLIB_CHECK_VERSION(2, 35, 0)
g_type_init ();
#endif
context = g_option_context_new ("- discover devices using SSDP");
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_warning ("Failed to parse options: %s", error->message);
g_error_free (error);
exit (1);
}
g_option_context_free (context);
discover.client = gssdp_client_new (interface, &error);
if (error != NULL) {
g_warning ("Failed to create GSSDP client: %s", error->message);
g_error_free (error);
exit (1);
}
g_print ("Using network interface %s\n",
gssdp_client_get_interface (discover.client));
if (target) {
g_print ("Scanning for resources matching %s\n", target);
discover.browser = gssdp_resource_browser_new
(discover.client, target);
} else {
g_print ("Scanning for all resources\n");
discover.browser = gssdp_resource_browser_new
(discover.client, "ssdp:all");
}
if (message_type == NULL) {
message_type = g_strdup ("available");
} else {
if (strncmp (message_type, "available", 9) != 0 &&
strncmp (message_type, "all", 3) != 0 &&
strncmp (message_type, "unavailable", 11) != 0) {
g_print ("Invalid message type. Use \"all\", ");
g_print ("\"available\" or \"unavailable\"\n");
exit (1);
}
}
if (strncmp (message_type, "available", 9) == 0 ||
strncmp (message_type, "all", 3) == 0) {
g_signal_connect (discover.browser,
"resource-available",
G_CALLBACK (on_resource_available),
&discover);
}
if (strncmp (message_type, "unavailable", 11) == 0 ||
strncmp (message_type, "all", 3) == 0) {
g_signal_connect (discover.browser,
"resource-unavailable",
G_CALLBACK (on_resource_unavailable),
&discover);
}
g_print ("Showing \"%s\" messages\n", message_type);
discover.main_loop = g_main_loop_new (NULL, FALSE);
gssdp_resource_browser_set_active (discover.browser, TRUE);
if (timeout > 0)
g_timeout_add_seconds (timeout,
(GSourceFunc) g_main_loop_quit,
discover.main_loop);
if (rescan_interval > 0 &&
(rescan_interval < timeout || timeout == 0))
g_timeout_add_seconds (rescan_interval,
(GSourceFunc) on_force_rescan_timeout,
&discover);
g_main_loop_run (discover.main_loop);
g_main_loop_unref (discover.main_loop);
g_object_unref (discover.browser);
g_object_unref (discover.client);
g_free (interface);
g_free (target);
g_free (message_type);
return 0;
}
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