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-rw-r--r--src/charon/config/traffic_selector.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/charon/config/traffic_selector.h b/src/charon/config/traffic_selector.h
index b611b611a..5d1ccaf2f 100644
--- a/src/charon/config/traffic_selector.h
+++ b/src/charon/config/traffic_selector.h
@@ -164,6 +164,8 @@ struct traffic_selector_t {
* Traffic selector may describe the end of *-to-host tunnel. In this
* case, the address range is a single address equal to the hosts
* peer address.
+ * If host is NULL, the traffic selector is checked if it is a single host,
+ * but not a specific one.
*
* @param this calling obect
* @param host host_t specifying the address range