mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
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1008 lines
23 KiB
C
1008 lines
23 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <getopt.h>
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#include <string.h>
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#include <dbus/dbus.h>
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#include <glib.h>
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static volatile sig_atomic_t __io_canceled = 0;
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static volatile sig_atomic_t __io_terminated = 0;
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static char *adapter = NULL;
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static DBusConnection *sys = NULL;
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static DBusConnection *session = NULL;
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static void sig_term(int sig)
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{
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__io_canceled = 1;
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}
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static DBusMessage *get_all(DBusConnection *conn, const char *name)
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{
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DBusMessage *msg, *reply;
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DBusError err;
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const char *iface = "org.mpris.MediaPlayer2.Player";
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msg = dbus_message_new_method_call(name, "/org/mpris/MediaPlayer2",
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DBUS_INTERFACE_PROPERTIES, "GetAll");
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if (!msg) {
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fprintf(stderr, "Can't allocate new method call\n");
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return NULL;
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}
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dbus_message_append_args(msg, DBUS_TYPE_STRING, &iface,
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DBUS_TYPE_INVALID);
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dbus_error_init(&err);
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reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
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dbus_message_unref(msg);
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if (!reply) {
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fprintf(stderr, "Can't get default adapter\n");
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if (dbus_error_is_set(&err)) {
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fprintf(stderr, "%s\n", err.message);
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dbus_error_free(&err);
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}
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return NULL;
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}
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return reply;
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}
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static void append_variant(DBusMessageIter *iter, int type, void *val)
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{
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DBusMessageIter value;
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char sig[2] = { type, '\0' };
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dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, sig, &value);
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dbus_message_iter_append_basic(&value, type, val);
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dbus_message_iter_close_container(iter, &value);
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}
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static void dict_append_entry(DBusMessageIter *dict, const char *key, int type,
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void *val)
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{
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DBusMessageIter entry;
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if (type == DBUS_TYPE_STRING) {
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const char *str = *((const char **) val);
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if (str == NULL)
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return;
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}
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dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY,
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NULL, &entry);
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dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
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append_variant(&entry, type, val);
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dbus_message_iter_close_container(dict, &entry);
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}
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static dbus_bool_t emit_properties_changed(DBusConnection *conn,
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const char *path,
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const char *interface,
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const char *name,
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int type, void *value)
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{
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DBusMessage *signal;
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DBusMessageIter iter, dict, entry, array;
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dbus_bool_t result;
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signal = dbus_message_new_signal(path, DBUS_INTERFACE_PROPERTIES,
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"PropertiesChanged");
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if (!signal) {
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fprintf(stderr, "Unable to allocate new %s.PropertyChanged"
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" signal", interface);
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return FALSE;
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}
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dbus_message_iter_init_append(signal, &iter);
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dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &interface);
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dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
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DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
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DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
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DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
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dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY, NULL,
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&entry);
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dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &name);
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append_variant(&entry, type, value);
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dbus_message_iter_close_container(&dict, &entry);
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dbus_message_iter_close_container(&iter, &dict);
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dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
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DBUS_TYPE_STRING_AS_STRING, &array);
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dbus_message_iter_close_container(&iter, &array);
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result = dbus_connection_send(conn, signal, NULL);
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dbus_message_unref(signal);
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return result;
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}
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static int parse_property(DBusConnection *conn, const char *path,
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const char *key,
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DBusMessageIter *entry,
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DBusMessageIter *properties)
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{
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DBusMessageIter var;
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printf("property %s found\n", key);
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if (dbus_message_iter_get_arg_type(entry) != DBUS_TYPE_VARIANT)
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return -EINVAL;
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dbus_message_iter_recurse(entry, &var);
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if (strcasecmp(key, "PlaybackStatus") == 0) {
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const char *value;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&var, &value);
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if (properties)
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dict_append_entry(properties, "Status",
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DBUS_TYPE_STRING, &value);
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else
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emit_properties_changed(sys, path,
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"org.bluez.MediaPlayer1", "Status",
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DBUS_TYPE_STRING, &value);
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} else if (strcasecmp(key, "Position") == 0) {
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int64_t usec, msec;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_INT64)
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return -EINVAL;
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dbus_message_iter_get_basic(&var, &usec);
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msec = usec / 1000;
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if (properties)
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dict_append_entry(properties, "Position",
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DBUS_TYPE_UINT32, &msec);
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else
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emit_properties_changed(sys, path,
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"org.bluez.MediaPlayer1", "Position",
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DBUS_TYPE_UINT32, &msec);
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} else if (strcasecmp(key, "Shuffle") == 0) {
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dbus_bool_t value;
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const char *str;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_BOOLEAN)
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return -EINVAL;
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dbus_message_iter_get_basic(&var, &value);
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str = value ? "on" : "off";
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if (properties)
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dict_append_entry(properties, "Shuffle",
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DBUS_TYPE_STRING, &str);
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else
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emit_properties_changed(sys, path,
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"org.bluez.MediaPlayer1", "Shuffle",
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DBUS_TYPE_STRING, &str);
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}
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return 0;
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}
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static int parse_properties(DBusConnection *conn, const char *path,
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DBusMessageIter *args,
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DBusMessageIter *properties)
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{
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DBusMessageIter dict;
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int ctype;
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ctype = dbus_message_iter_get_arg_type(args);
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if (ctype != DBUS_TYPE_ARRAY)
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return -EINVAL;
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dbus_message_iter_recurse(args, &dict);
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while ((ctype = dbus_message_iter_get_arg_type(&dict)) !=
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DBUS_TYPE_INVALID) {
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DBusMessageIter entry;
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const char *key;
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if (ctype != DBUS_TYPE_DICT_ENTRY)
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return -EINVAL;
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dbus_message_iter_recurse(&dict, &entry);
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if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&entry, &key);
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dbus_message_iter_next(&entry);
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if (parse_property(conn, path, key, &entry, properties) < 0)
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return -EINVAL;
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dbus_message_iter_next(&dict);
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}
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return 0;
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}
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static int parse_metadata_entry(DBusMessageIter *entry, const char *key,
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DBusMessageIter *metadata)
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{
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DBusMessageIter var;
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printf("metadata %s found\n", key);
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if (dbus_message_iter_get_arg_type(entry) != DBUS_TYPE_VARIANT)
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return -EINVAL;
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dbus_message_iter_recurse(entry, &var);
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if (strcasecmp(key, "xesam:title") == 0) {
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const char *value;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&var, &value);
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dict_append_entry(metadata, "Title", DBUS_TYPE_STRING,
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&value);
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} else if (strcasecmp(key, "xesam:artist") == 0) {
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const char *value;
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DBusMessageIter array;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_ARRAY)
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return -EINVAL;
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dbus_message_iter_recurse(&var, &array);
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if (dbus_message_iter_get_arg_type(&array) !=
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DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&array, &value);
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dict_append_entry(metadata, "Artist", DBUS_TYPE_STRING,
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&value);
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} else if (strcasecmp(key, "xesam:album") == 0) {
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const char *value;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&var, &value);
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dict_append_entry(metadata, "Album", DBUS_TYPE_STRING,
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&value);
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} else if (strcasecmp(key, "xesam:genre") == 0) {
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const char *value;
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DBusMessageIter array;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_ARRAY)
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return -EINVAL;
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dbus_message_iter_recurse(&var, &array);
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if (dbus_message_iter_get_arg_type(&array) !=
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DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&array, &value);
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dict_append_entry(metadata, "Genre", DBUS_TYPE_STRING,
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&value);
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} else if (strcasecmp(key, "mpris:length") == 0) {
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int64_t usec, msec;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_INT64)
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return -EINVAL;
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dbus_message_iter_get_basic(&var, &usec);
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msec = usec / 1000;
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dict_append_entry(metadata, "Duration", DBUS_TYPE_UINT32,
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&msec);
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} else if (strcasecmp(key, "xesam:trackNumber") == 0) {
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int32_t value;
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if (dbus_message_iter_get_arg_type(&var) !=
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DBUS_TYPE_INT32)
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return -EINVAL;
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dbus_message_iter_get_basic(&var, &value);
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dict_append_entry(metadata, "Track", DBUS_TYPE_UINT32,
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&value);
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}
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return 0;
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}
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static int parse_track(DBusMessageIter *args, DBusMessageIter *metadata)
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{
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DBusMessageIter var, dict;
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int ctype;
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ctype = dbus_message_iter_get_arg_type(args);
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if (ctype != DBUS_TYPE_VARIANT)
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return -EINVAL;
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dbus_message_iter_recurse(args, &var);
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ctype = dbus_message_iter_get_arg_type(&var);
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if (ctype != DBUS_TYPE_ARRAY)
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return -EINVAL;
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dbus_message_iter_recurse(&var, &dict);
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while ((ctype = dbus_message_iter_get_arg_type(&dict)) !=
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DBUS_TYPE_INVALID) {
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DBusMessageIter entry;
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const char *key;
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if (ctype != DBUS_TYPE_DICT_ENTRY)
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return -EINVAL;
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dbus_message_iter_recurse(&dict, &entry);
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if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&entry, &key);
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dbus_message_iter_next(&entry);
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if (parse_metadata_entry(&entry, key, metadata) < 0)
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return -EINVAL;
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dbus_message_iter_next(&dict);
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}
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return 0;
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}
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static int parse_metadata(DBusMessageIter *args, DBusMessageIter *metadata)
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{
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DBusMessageIter dict;
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int ctype;
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ctype = dbus_message_iter_get_arg_type(args);
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if (ctype != DBUS_TYPE_ARRAY)
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return -EINVAL;
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dbus_message_iter_recurse(args, &dict);
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while ((ctype = dbus_message_iter_get_arg_type(&dict)) !=
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DBUS_TYPE_INVALID) {
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DBusMessageIter entry;
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const char *key;
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if (ctype != DBUS_TYPE_DICT_ENTRY)
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return -EINVAL;
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dbus_message_iter_recurse(&dict, &entry);
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if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
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return -EINVAL;
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dbus_message_iter_get_basic(&entry, &key);
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dbus_message_iter_next(&entry);
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if (strcasecmp(key, "Metadata") == 0)
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return parse_track(&entry, metadata);
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dbus_message_iter_next(&dict);
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}
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return -EINVAL;
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}
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static char *sender2path(const char *sender)
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{
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char *path;
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path = g_strconcat("/", sender, NULL);
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return g_strdelimit(path, ":.", '_');
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}
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static DBusHandlerResult player_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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if (dbus_message_is_method_call(msg, "org.bluez.MediaPlayer1",
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"Release")) {
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printf("Release\n");
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exit(1);
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}
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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static const DBusObjectPathVTable player_table = {
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.message_function = player_message,
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};
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static void add_player(DBusConnection *conn, const char *name,
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const char *sender)
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{
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DBusMessage *reply = get_all(conn, name);
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DBusMessage *msg;
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DBusMessageIter iter, args, properties, metadata;
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DBusError err;
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char *path;
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if (!reply)
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return;
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msg = dbus_message_new_method_call("org.bluez", adapter,
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"org.bluez.Media1",
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"RegisterPlayer");
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if (!msg) {
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fprintf(stderr, "Can't allocate new method call\n");
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return;
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}
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dbus_message_iter_init_append(msg, &iter);
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path = sender2path(sender);
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dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH, &path);
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dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
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DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
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DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
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DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &properties);
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dbus_message_iter_init(reply, &args);
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if (parse_properties(conn, path, &args, &properties) < 0)
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goto done;
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dbus_message_iter_close_container(&iter, &properties);
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dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
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DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
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DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
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DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &metadata);
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dbus_message_iter_init(reply, &args);
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if (parse_metadata(&args, &metadata) < 0)
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goto done;
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dbus_message_iter_close_container(&iter, &metadata);
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dbus_message_unref(reply);
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dbus_error_init(&err);
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reply = dbus_connection_send_with_reply_and_block(sys, msg, -1, &err);
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if (!reply) {
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fprintf(stderr, "Can't register player\n");
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if (dbus_error_is_set(&err)) {
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fprintf(stderr, "%s\n", err.message);
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dbus_error_free(&err);
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}
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goto done;
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}
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if (!dbus_connection_register_object_path(sys, path, &player_table,
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NULL))
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fprintf(stderr, "Can't register object path for agent\n");
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done:
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if (reply)
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dbus_message_unref(reply);
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|
dbus_message_unref(msg);
|
|
g_free(path);
|
|
}
|
|
|
|
static void remove_player(DBusConnection *conn, const char *sender)
|
|
{
|
|
DBusMessage *msg;
|
|
char *path;
|
|
|
|
msg = dbus_message_new_method_call("org.bluez", adapter,
|
|
"org.bluez.Media1",
|
|
"UnregisterPlayer");
|
|
if (!msg) {
|
|
fprintf(stderr, "Can't allocate new method call\n");
|
|
return;
|
|
}
|
|
|
|
path = sender2path(sender);
|
|
dbus_message_append_args(msg, DBUS_TYPE_OBJECT_PATH, &path,
|
|
DBUS_TYPE_INVALID);
|
|
|
|
dbus_connection_send(sys, msg, NULL);
|
|
|
|
dbus_message_unref(msg);
|
|
g_free(path);
|
|
}
|
|
|
|
static DBusHandlerResult properties_changed(DBusConnection *conn,
|
|
DBusMessage *msg)
|
|
{
|
|
DBusMessage *signal;
|
|
DBusMessageIter iter, entry, metadata;
|
|
const char *iface;
|
|
char *path;
|
|
|
|
dbus_message_iter_init(msg, &iter);
|
|
|
|
if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
|
|
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
|
|
dbus_message_iter_get_basic(&iter, &iface);
|
|
|
|
printf("PropertiesChanged interface %s\n", iface);
|
|
|
|
dbus_message_iter_next(&iter);
|
|
|
|
path = sender2path(dbus_message_get_sender(msg));
|
|
parse_properties(conn, path, &iter, NULL);
|
|
|
|
signal = dbus_message_new_signal(path, "org.bluez.MediaPlayer1",
|
|
"TrackChanged");
|
|
if (!signal) {
|
|
fprintf(stderr, "Unable to allocate new PropertyChanged"
|
|
" signal\n");
|
|
goto err;
|
|
}
|
|
|
|
dbus_message_iter_init_append(signal, &entry);
|
|
|
|
dbus_message_iter_open_container(&entry, DBUS_TYPE_ARRAY,
|
|
DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
|
|
DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
|
|
DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &metadata);
|
|
|
|
dbus_message_iter_init(msg, &iter);
|
|
dbus_message_iter_next(&iter);
|
|
|
|
if (parse_metadata(&iter, &metadata) < 0)
|
|
goto err;
|
|
|
|
dbus_message_iter_close_container(&entry, &metadata);
|
|
|
|
dbus_connection_send(sys, signal, NULL);
|
|
dbus_message_unref(signal);
|
|
g_free(path);
|
|
|
|
return DBUS_HANDLER_RESULT_HANDLED;
|
|
|
|
err:
|
|
if (signal)
|
|
dbus_message_unref(signal);
|
|
g_free(path);
|
|
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
}
|
|
|
|
static DBusHandlerResult session_filter(DBusConnection *conn,
|
|
DBusMessage *msg, void *data)
|
|
{
|
|
const char *name, *old, *new;
|
|
|
|
if (dbus_message_is_signal(msg, DBUS_INTERFACE_PROPERTIES,
|
|
"PropertiesChanged"))
|
|
return properties_changed(conn, msg);
|
|
|
|
if (!dbus_message_is_signal(msg, DBUS_INTERFACE_DBUS,
|
|
"NameOwnerChanged"))
|
|
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
|
|
if (!dbus_message_get_args(msg, NULL,
|
|
DBUS_TYPE_STRING, &name,
|
|
DBUS_TYPE_STRING, &old,
|
|
DBUS_TYPE_STRING, &new,
|
|
DBUS_TYPE_INVALID)) {
|
|
fprintf(stderr, "Invalid arguments for NameOwnerChanged signal");
|
|
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
}
|
|
|
|
if (!g_str_has_prefix(name, "org.mpris"))
|
|
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
|
|
if (*new == '\0') {
|
|
printf("player %s at %s disappear\n", name, old);
|
|
remove_player(conn, old);
|
|
} else {
|
|
printf("player %s at %s found\n", name, new);
|
|
add_player(conn, name, new);
|
|
}
|
|
|
|
return DBUS_HANDLER_RESULT_HANDLED;
|
|
}
|
|
|
|
static DBusHandlerResult system_filter(DBusConnection *conn,
|
|
DBusMessage *msg, void *data)
|
|
{
|
|
const char *name, *old, *new;
|
|
|
|
if (!dbus_message_is_signal(msg, DBUS_INTERFACE_DBUS,
|
|
"NameOwnerChanged"))
|
|
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
|
|
if (!dbus_message_get_args(msg, NULL,
|
|
DBUS_TYPE_STRING, &name,
|
|
DBUS_TYPE_STRING, &old,
|
|
DBUS_TYPE_STRING, &new,
|
|
DBUS_TYPE_INVALID)) {
|
|
fprintf(stderr, "Invalid arguments for NameOwnerChanged signal");
|
|
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
}
|
|
|
|
if (!strcmp(name, "org.bluez") && *new == '\0') {
|
|
fprintf(stderr, "bluetoothd disconnected\n");
|
|
__io_terminated = 1;
|
|
}
|
|
|
|
return DBUS_HANDLER_RESULT_HANDLED;
|
|
}
|
|
|
|
static char *get_default_adapter(DBusConnection *conn)
|
|
{
|
|
DBusMessage *msg, *reply;
|
|
DBusError err;
|
|
const char *reply_path;
|
|
char *path;
|
|
|
|
msg = dbus_message_new_method_call("org.bluez", "/",
|
|
"org.bluez.Manager", "DefaultAdapter");
|
|
|
|
if (!msg) {
|
|
fprintf(stderr, "Can't allocate new method call\n");
|
|
return NULL;
|
|
}
|
|
|
|
dbus_error_init(&err);
|
|
|
|
reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
|
|
|
|
dbus_message_unref(msg);
|
|
|
|
if (!reply) {
|
|
fprintf(stderr, "Can't get default adapter\n");
|
|
if (dbus_error_is_set(&err)) {
|
|
fprintf(stderr, "%s\n", err.message);
|
|
dbus_error_free(&err);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (!dbus_message_get_args(reply, &err,
|
|
DBUS_TYPE_OBJECT_PATH, &reply_path,
|
|
DBUS_TYPE_INVALID)) {
|
|
fprintf(stderr, "Can't get reply arguments\n");
|
|
if (dbus_error_is_set(&err)) {
|
|
fprintf(stderr, "%s\n", err.message);
|
|
dbus_error_free(&err);
|
|
}
|
|
dbus_message_unref(reply);
|
|
return NULL;
|
|
}
|
|
|
|
path = strdup(reply_path);
|
|
|
|
dbus_message_unref(reply);
|
|
|
|
dbus_connection_flush(conn);
|
|
|
|
return path;
|
|
}
|
|
|
|
static char *get_adapter(DBusConnection *conn, const char *adapter)
|
|
{
|
|
DBusMessage *msg, *reply;
|
|
DBusError err;
|
|
const char *reply_path;
|
|
char *path;
|
|
|
|
if (!adapter)
|
|
return get_default_adapter(conn);
|
|
|
|
msg = dbus_message_new_method_call("org.bluez", "/",
|
|
"org.bluez.Manager", "FindAdapter");
|
|
|
|
if (!msg) {
|
|
fprintf(stderr, "Can't allocate new method call\n");
|
|
return NULL;
|
|
}
|
|
|
|
dbus_message_append_args(msg, DBUS_TYPE_STRING, &adapter,
|
|
DBUS_TYPE_INVALID);
|
|
|
|
dbus_error_init(&err);
|
|
|
|
reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
|
|
|
|
dbus_message_unref(msg);
|
|
|
|
if (!reply) {
|
|
fprintf(stderr, "Can't find adapter %s\n", adapter);
|
|
if (dbus_error_is_set(&err)) {
|
|
fprintf(stderr, "%s\n", err.message);
|
|
dbus_error_free(&err);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (!dbus_message_get_args(reply, &err,
|
|
DBUS_TYPE_OBJECT_PATH, &reply_path,
|
|
DBUS_TYPE_INVALID)) {
|
|
fprintf(stderr, "Can't get reply arguments\n");
|
|
if (dbus_error_is_set(&err)) {
|
|
fprintf(stderr, "%s\n", err.message);
|
|
dbus_error_free(&err);
|
|
}
|
|
dbus_message_unref(reply);
|
|
return NULL;
|
|
}
|
|
|
|
path = strdup(reply_path);
|
|
|
|
dbus_message_unref(reply);
|
|
|
|
dbus_connection_flush(conn);
|
|
|
|
return path;
|
|
}
|
|
|
|
static char *get_name_owner(DBusConnection *conn, const char *name)
|
|
{
|
|
DBusMessage *msg, *reply;
|
|
DBusError err;
|
|
char *owner;
|
|
|
|
msg = dbus_message_new_method_call(DBUS_SERVICE_DBUS, DBUS_PATH_DBUS,
|
|
DBUS_INTERFACE_DBUS, "GetNameOwner");
|
|
|
|
if (!msg) {
|
|
fprintf(stderr, "Can't allocate new method call\n");
|
|
return NULL;
|
|
}
|
|
|
|
dbus_message_append_args(msg, DBUS_TYPE_STRING, &name,
|
|
DBUS_TYPE_INVALID);
|
|
|
|
dbus_error_init(&err);
|
|
|
|
reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
|
|
|
|
dbus_message_unref(msg);
|
|
|
|
if (!reply) {
|
|
fprintf(stderr, "Can't find adapter %s\n", adapter);
|
|
if (dbus_error_is_set(&err)) {
|
|
fprintf(stderr, "%s\n", err.message);
|
|
dbus_error_free(&err);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (!dbus_message_get_args(reply, NULL,
|
|
DBUS_TYPE_STRING, &owner,
|
|
DBUS_TYPE_INVALID)) {
|
|
dbus_message_unref(reply);
|
|
return NULL;
|
|
}
|
|
|
|
owner = g_strdup(owner);
|
|
|
|
dbus_message_unref(reply);
|
|
|
|
dbus_connection_flush(conn);
|
|
|
|
return owner;
|
|
}
|
|
|
|
static void parse_list_names(DBusConnection *conn, DBusMessageIter *args)
|
|
{
|
|
DBusMessageIter array;
|
|
int ctype;
|
|
|
|
ctype = dbus_message_iter_get_arg_type(args);
|
|
if (ctype != DBUS_TYPE_ARRAY)
|
|
return;
|
|
|
|
dbus_message_iter_recurse(args, &array);
|
|
|
|
while ((ctype = dbus_message_iter_get_arg_type(&array)) !=
|
|
DBUS_TYPE_INVALID) {
|
|
const char *name;
|
|
char *owner;
|
|
|
|
if (ctype != DBUS_TYPE_STRING)
|
|
goto next;
|
|
|
|
dbus_message_iter_get_basic(&array, &name);
|
|
|
|
if (!g_str_has_prefix(name, "org.mpris"))
|
|
goto next;
|
|
|
|
owner = get_name_owner(conn, name);
|
|
|
|
if (owner == NULL)
|
|
goto next;
|
|
|
|
add_player(conn, name, owner);
|
|
|
|
g_free(owner);
|
|
next:
|
|
dbus_message_iter_next(&array);
|
|
}
|
|
}
|
|
|
|
static void list_names(DBusConnection *conn)
|
|
{
|
|
DBusMessage *msg, *reply;
|
|
DBusMessageIter iter;
|
|
DBusError err;
|
|
|
|
msg = dbus_message_new_method_call(DBUS_SERVICE_DBUS, DBUS_PATH_DBUS,
|
|
DBUS_INTERFACE_DBUS, "ListNames");
|
|
|
|
if (!msg) {
|
|
fprintf(stderr, "Can't allocate new method call\n");
|
|
return;
|
|
}
|
|
|
|
dbus_error_init(&err);
|
|
|
|
reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
|
|
|
|
dbus_message_unref(msg);
|
|
|
|
if (!reply) {
|
|
fprintf(stderr, "Can't find adapter %s\n", adapter);
|
|
if (dbus_error_is_set(&err)) {
|
|
fprintf(stderr, "%s\n", err.message);
|
|
dbus_error_free(&err);
|
|
}
|
|
return;
|
|
}
|
|
|
|
dbus_message_iter_init(reply, &iter);
|
|
|
|
parse_list_names(conn, &iter);
|
|
|
|
dbus_message_unref(reply);
|
|
|
|
dbus_connection_flush(conn);
|
|
}
|
|
|
|
static void usage(void)
|
|
{
|
|
printf("Bluetooth player ver %s\n\n", VERSION);
|
|
|
|
printf("Usage:\n"
|
|
"\tplayer [--adapter adapter id]\n"
|
|
"\n");
|
|
}
|
|
|
|
static struct option main_options[] = {
|
|
{ "adapter", 1, 0, 'a' },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct sigaction sa;
|
|
char *adapter_id = NULL;
|
|
char match[128];
|
|
int opt;
|
|
|
|
while ((opt = getopt_long(argc, argv, "+a,h", main_options, NULL)) != EOF) {
|
|
switch(opt) {
|
|
case '1':
|
|
adapter_id = optarg;
|
|
break;
|
|
case 'h':
|
|
usage();
|
|
exit(0);
|
|
default:
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
sys = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
|
|
if (!sys) {
|
|
fprintf(stderr, "Can't get on system bus");
|
|
exit(1);
|
|
}
|
|
|
|
adapter = get_adapter(sys, adapter_id);
|
|
if (!adapter)
|
|
exit(1);
|
|
|
|
if (!dbus_connection_add_filter(sys, system_filter, NULL, NULL)) {
|
|
fprintf(stderr, "Can't add signal filter");
|
|
exit(1);
|
|
}
|
|
|
|
snprintf(match, sizeof(match),
|
|
"interface=%s,member=NameOwnerChanged,arg0=%s",
|
|
DBUS_INTERFACE_DBUS, "org.bluez");
|
|
|
|
dbus_bus_add_match(sys, match, NULL);
|
|
|
|
session = dbus_bus_get(DBUS_BUS_SESSION, NULL);
|
|
if (!session) {
|
|
fprintf(stderr, "Can't get on session bus");
|
|
exit(1);
|
|
}
|
|
|
|
if (!dbus_connection_add_filter(session, session_filter, NULL, NULL)) {
|
|
fprintf(stderr, "Can't add signal filter");
|
|
exit(1);
|
|
}
|
|
|
|
snprintf(match, sizeof(match),
|
|
"interface=%s,member=NameOwnerChanged",
|
|
DBUS_INTERFACE_DBUS);
|
|
|
|
dbus_bus_add_match(session, match, NULL);
|
|
|
|
snprintf(match, sizeof(match),
|
|
"interface=%s,member=PropertiesChanged,arg0=%s",
|
|
DBUS_INTERFACE_PROPERTIES,
|
|
"org.mpris.MediaPlayer2.Player");
|
|
|
|
list_names(session);
|
|
|
|
dbus_bus_add_match(session, match, NULL);
|
|
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_flags = SA_NOCLDSTOP;
|
|
sa.sa_handler = sig_term;
|
|
sigaction(SIGTERM, &sa, NULL);
|
|
sigaction(SIGINT, &sa, NULL);
|
|
|
|
while (!__io_canceled && !__io_terminated) {
|
|
if (dbus_connection_read_write_dispatch(sys, 500) != TRUE)
|
|
break;
|
|
if (dbus_connection_read_write_dispatch(session, 500) != TRUE)
|
|
break;
|
|
}
|
|
|
|
dbus_connection_unref(sys);
|
|
|
|
return 0;
|
|
}
|