gdbus: Add helper for sending async error replies

2 files changed, 38 insertions, 0 deletions

diff --git a/gdbus/gdbus.h b/gdbus/gdbus.h
index 5f1209f..0e5c012 100644
--- a/gdbus/gdbus.h
+++ b/gdbus/gdbus.h
@@ -222,6 +222,12 @@ DBusMessage *g_dbus_create_reply_valist(DBusMessage *message,
 						int type, va_list args);
 
 gboolean g_dbus_send_message(DBusConnection *connection, DBusMessage *message);
+gboolean g_dbus_send_error(DBusConnection *connection, DBusMessage *message,
+				const char *name, const char *format, ...)
+					 __attribute__((format(printf, 4, 5)));
+gboolean g_dbus_send_error_valist(DBusConnection *connection,
+					DBusMessage *message, const char *name,
+					const char *format, va_list args);
 gboolean g_dbus_send_reply(DBusConnection *connection,
 				DBusMessage *message, int type, ...);
 gboolean g_dbus_send_reply_valist(DBusConnection *connection,
diff --git a/gdbus/object.c b/gdbus/object.c
index 7cbd612..776d35e 100644
--- a/gdbus/object.c
+++ b/gdbus/object.c
@@ -1446,6 +1446,38 @@ gboolean g_dbus_send_message(DBusConnection *connection, DBusMessage *message)
 	return result;
 }
 
+gboolean g_dbus_send_error_valist(DBusConnection *connection,
+					DBusMessage *message, const char *name,
+					const char *format, va_list args)
+{
+	DBusMessage *error;
+	char str[1024];
+
+	vsnprintf(str, sizeof(str), format, args);
+
+	error = dbus_message_new_error(message, name, str);
+	if (error == NULL)
+		return FALSE;
+
+	return g_dbus_send_message(connection, error);
+}
+
+gboolean g_dbus_send_error(DBusConnection *connection, DBusMessage *message,
+				const char *name, const char *format, ...)
+{
+	va_list args;
+	gboolean result;
+
+	va_start(args, format);
+
+	result = g_dbus_send_error_valist(connection, message, name,
+							format, args);
+
+	va_end(args);
+
+	return result;
+}
+
 gboolean g_dbus_send_reply_valist(DBusConnection *connection,
 				DBusMessage *message, int type, va_list args)
 {