lib-ssl-iostream: Add comment for ssl_iostream_get_compression

diff --git a/src/lib-ssl-iostream/iostream-ssl.h b/src/lib-ssl-iostream/iostream-ssl.h
index 3b4864ae9243ecfee9da651be93c5bc9ce02a587..3dbd1e839735913e38fa29ce3892c49c9e540c8a 100644 (file)
--- a/src/lib-ssl-iostream/iostream-ssl.h
+++ b/src/lib-ssl-iostream/iostream-ssl.h
@@ -125,6 +125,7 @@ bool ssl_iostream_cert_match_name(struct ssl_iostream *ssl_io, const char *name,
 /* Returns name of the peer if available, NULL if not. Usually used to retrieve
    username from certificate. */
 const char *ssl_iostream_get_peer_name(struct ssl_iostream *ssl_io);
+/* Returns used compression, if any. Returns NULL if not available. */
 const char *ssl_iostream_get_compression(struct ssl_iostream *ssl_io);
 const char *ssl_iostream_get_server_name(struct ssl_iostream *ssl_io);
 const char *ssl_iostream_get_security_string(struct ssl_iostream *ssl_io);