+ * @return #GNUNET_YES, #GNUNET_NO or if option has no valid value, #GNUNET_SYSERR
+ */
+int
+GNUNET_CONFIGURATION_get_value_yesno (const struct GNUNET_CONFIGURATION_Handle *cfg,
+ const char *section,
+ const char *option);
+
+
+/**
+ * Get Crockford32-encoded fixed-size binary data from a configuration.
+ *
+ * @param cfg configuration to access
+ * @param section section to access
+ * @param option option to access
+ * @param buf where to store the decoded binary result
+ * @param buf_size exact number of bytes to store in @a buf
+ * @return #GNUNET_OK on success
+ * #GNUNET_NO is the value does not exist
+ * #GNUNET_SYSERR on decoding error