plugin-feature: Added helper function to extend arrays of plugin features

diff --git a/src/libstrongswan/plugins/plugin_feature.h b/src/libstrongswan/plugins/plugin_feature.h
index 00deb38b0d1a1dbda9d5faffaf377a0285214c95..ea23f766ca3f0044351965cb7c6c0e12f85b449c 100644 (file)
--- a/src/libstrongswan/plugins/plugin_feature.h
+++ b/src/libstrongswan/plugins/plugin_feature.h
@@ -329,6 +329,27 @@ struct plugin_feature_t {
  */
 extern enum_name_t *plugin_feature_names;
 
+/**
+ * Add a set of plugin features to the given array, which must have enough space
+ * to store the added features.
+ *
+ * @param features             the array of plugin features to extend
+ * @param to_add               the features to add
+ * @param count                        number of features to add
+ * @param pos                  current position in the features array, gets advanced
+ */
+static inline void plugin_features_add(plugin_feature_t *features,
+                                                                          plugin_feature_t *to_add,
+                                                                          int count, int *pos)
+{
+       int i;
+
+       for (i = 0; i < count; i++)
+       {
+               features[(*pos)++] = to_add[i];
+       }
+}
+
 /**
  * Calculates a hash value for the given feature.
  *