logind: implement delay inhibitor locks in addition to block inhibitor locks

[thirdparty/systemd.git] / src / shared / dbus-common.c

diff --git a/src/shared/dbus-common.c b/src/shared/dbus-common.c
index e161273cd8a08a9ec75d4875fd424e486929dacd..ddb50b1ecafe65089b0b19d80a38a4952a9940d9 100644 (file)
--- a/src/shared/dbus-common.c
+++ b/src/shared/dbus-common.c
@@ -245,7 +245,8 @@ int bus_connect_system_polkit(DBusConnection **_bus, DBusError *error) {
 }
 
 const char *bus_error_message(const DBusError *error) {
-        assert(error);
+        if (!error)
+                return NULL;
 
         /* Sometimes the D-Bus server is a little bit too verbose with
          * its error messages, so let's override them here */
@@ -255,6 +256,14 @@ const char *bus_error_message(const DBusError *error) {
         return error->message;
 }
 
+const char *bus_error_message_or_strerror(const DBusError *error, int err) {
+
+        if (error && dbus_error_is_set(error))
+                return bus_error_message(error);
+
+        return strerror(err);
+}
+
 DBusHandlerResult bus_default_message_handler(
                 DBusConnection *c,
                 DBusMessage *message,