| dnf install g++ dbus-devel -y |
| g++ -o list_nodes list_nodes.cpp \ |
| -I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include/ -ldbus-1 |
#include <dbus/dbus.h>
#include <iostream>
void handle_structure(DBusMessageIter *structIter) {
int typeInStruct;
while ((typeInStruct = dbus_message_iter_get_arg_type(
structIter)) != DBUS_TYPE_INVALID) {
if (typeInStruct == DBUS_TYPE_STRING) {
char *value;
dbus_message_iter_get_basic(structIter, &value);
std::cout << "" << value << std::endl;
} else if (typeInStruct == DBUS_TYPE_OBJECT_PATH) {
char *path;
dbus_message_iter_get_basic(structIter, &path);
std::cout << "Path: " << path << std::endl;
}
dbus_message_iter_next(structIter);
}
std::cout << "" << std::endl;
}
int main() {
DBusConnection *conn;
DBusError err;
DBusMessage *msg;
DBusMessageIter args;
dbus_error_init(&err);
conn = dbus_bus_get(DBUS_BUS_SYSTEM, &err);
if (dbus_error_is_set(&err)) {
std::cerr << "Connection Error: " << err.message << std::endl;
dbus_error_free(&err);
return 1;
}
msg = dbus_message_new_method_call(
"org.eclipse.bluechi",
"/org/eclipse/bluechi",
"org.eclipse.bluechi.Manager",
"ListNodes");
if (msg == nullptr) {
std::cerr << "Message Null" << std::endl;
return 1;
}
DBusMessage *reply = dbus_connection_send_with_reply_and_block(
conn,
msg,
-1,
&err);
if (dbus_error_is_set(&err)) {
std::cerr << "Send Error: " << err.message << std::endl;
dbus_error_free(&err);
return 1;
}
if (!reply) {
std::cerr << "Reply Null" << std::endl;
return 1;
}
if (!dbus_message_iter_init(reply, &args)) {
std::cerr << "Message has no arguments!" << std::endl;
} else {
int argType = dbus_message_iter_get_arg_type(&args);
if (argType == DBUS_TYPE_ARRAY) {
DBusMessageIter subArgs;
dbus_message_iter_recurse(&args, &subArgs);
while ((argType = dbus_message_iter_get_arg_type(
&subArgs)) != DBUS_TYPE_INVALID) {
if (argType == DBUS_TYPE_STRUCT) {
DBusMessageIter structArgs;
dbus_message_iter_recurse(&subArgs, &structArgs);
handle_structure(&structArgs);
} else {
std::cout << "Unexpected item: " << argType << std::endl;
}
dbus_message_iter_next(&subArgs);
}
} else {
std::cerr << "Argument is not an array!" << std::endl;
}
}
dbus_message_unref(msg);
dbus_message_unref(reply);
dbus_connection_unref(conn);
return 0;
}
