--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+#ifndef _FR_TLS_LOG_H
+#define _FR_TLS_LOG_H
+
+#ifdef WITH_TLS
+/**
+ * $Id$
+ *
+ * @file include/tls_log.h
+ * @brief Prototypes for TLS logging functions
+ *
+ * @copyright 2017 The FreeRADIUS project
+ */
+RCSIDH(tls_log_h, "$Id$")
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/*
+ * tls/log.c
+ */
+int tls_strerror_printf(bool drain_all, char const *msg, ...) CC_HINT(format (printf, 2, 3));
+#endif
+#endif /* _FR_TLS_LOG_H */