1 files changed, 7 insertions, 0 deletions
diff --git a/include/nspsl.h b/include/nspsl.h
index 2358167..02bcbb8 100644
--- a/include/nspsl.h
+++ b/include/nspsl.h
@@ -7,4 +7,11 @@
  *                http://www.opensource.org/licenses/mit-license.php
  */
 
+/**
+ * get the public suffix of a hostname
+ *
+ * \param hostname The name to check
+ * \return pointer to the public suffix of the hostname if it was valid else
+ * NULL.
+ */
 const char *nspsl_getpublicsuffix(const char *hostname);