alert: add callback to intercept alert messagestmp-quic

This adds gnutls_alert_set_read_function(), to allow QUIC
implementations to be notified when an alert message is sent.

Signed-off-by: Daiki Ueno <dueno@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/state.c b/lib/state.c
index b751735e5a..6a96f05c15 100644
--- a/lib/state.c
+++ b/lib/state.c
@@ -1480,6 +1480,23 @@ gnutls_handshake_set_read_function(gnutls_session_t session,
 }
 
 /**
+ * gnutls_alert_set_read_function:
+ * @session: is #gnutls_session_t type
+ * @func: is the function to be called
+ *
+ * This function will set a callback to be called when an alert
+ * message is being sent.
+ *
+ * Since: 3.6.14
+ */
+void
+gnutls_alert_set_read_function(gnutls_session_t session,
+			       gnutls_alert_read_func func)
+{
+	session->internals.a_read_func = func;
+}
+
+/**
  * gnutls_record_get_state:
  * @session: is a #gnutls_session_t type
  * @read: if non-zero the read parameters are returned, otherwise the write