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int
my_get_property_sync (const void * parent,
NihDBusProxy *proxy,
char ** value)
{
DBusMessage * method_call;
DBusMessageIter iter;
DBusMessageIter variter;
DBusError error;
DBusMessage * reply;
const char * interface;
const char * property;
const char * local_dbus;
char * local;
nih_assert (proxy != NULL);
nih_assert (value != NULL);
/* Construct the method call message. */
method_call = dbus_message_new_method_call (proxy->name, proxy->path, "org.freedesktop.DBus.Properties", "Get");
if (! method_call)
nih_return_no_memory_error (-1);
dbus_message_set_auto_start (method_call, proxy->auto_start);
dbus_message_iter_init_append (method_call, &iter);
interface = "com.netsplit.Nih.Test";
if (! dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &interface)) {
dbus_message_unref (method_call);
nih_return_no_memory_error (-1);
}
property = "property";
if (! dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &property)) {
dbus_message_unref (method_call);
nih_return_no_memory_error (-1);
}
/* Send the message, and wait for the reply. */
dbus_error_init (&error);
reply = dbus_connection_send_with_reply_and_block (proxy->connection, method_call, -1, &error);
if (! reply) {
dbus_message_unref (method_call);
if (dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY)) {
nih_error_raise_no_memory ();
} else {
nih_dbus_error_raise (error.name, error.message);
}
dbus_error_free (&error);
return -1;
}
dbus_message_unref (method_call);
/* Iterate the method arguments, recursing into the variant */
dbus_message_iter_init (reply, &iter);
if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_VARIANT) {
dbus_message_unref (reply);
nih_return_error (-1, NIH_DBUS_INVALID_ARGS,
_(NIH_DBUS_INVALID_ARGS_STR));
}
dbus_message_iter_recurse (&iter, &variter);
dbus_message_iter_next (&iter);
if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_INVALID) {
dbus_message_unref (reply);
nih_return_error (-1, NIH_DBUS_INVALID_ARGS,
_(NIH_DBUS_INVALID_ARGS_STR));
}
do {
__label__ enomem;
/* Demarshal a char * from the message */
if (dbus_message_iter_get_arg_type (&variter) != DBUS_TYPE_STRING) {
dbus_message_unref (reply);
nih_return_error (-1, NIH_DBUS_INVALID_ARGS,
_(NIH_DBUS_INVALID_ARGS_STR));
}
dbus_message_iter_get_basic (&variter, &local_dbus);
local = nih_strdup (parent, local_dbus);
if (! local) {
*value = NULL;
goto enomem;
}
dbus_message_iter_next (&variter);
*value = local;
enomem: __attribute__ ((unused));
} while (! *value);
dbus_message_unref (reply);
return 0;
}
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