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diff --git a/lib/util/become_daemon.h b/lib/util/become_daemon.h
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+/*
+   Unix SMB/CIFS implementation.
+   Samba utility functions
+   Copyright (C) Andrew Tridgell 1992-1998
+   Copyright (C) Jeremy Allison 2001-2002
+   Copyright (C) Simo Sorce 2001
+   Copyright (C) Jim McDonough (jmcd@us.ibm.com)  2003.
+   Copyright (C) James J Myers 2003
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _BECOME_DAEMON_H
+#define _BECOME_DAEMON_H
+
+#include <stdbool.h>
+
+/**
+ * @file become_daemon.h
+ *
+ * @brief Utilities for demonising
+ */
+
+/**
+ * @brief Enable or disable daemon status systemd notifications
+ *
+ * When samba runs as AD DC only the main 'samba' process has to
+ * notify systemd. Child processes started by the main 'samba', like
+ * smbd and winbindd should call this function to disable sd_notify()
+ * calls.
+ *
+ * @param[in] enable True to enable notifications, false to disable
+**/
+void daemon_sd_notifications(bool enable);
+
+/**
+ * @brief Become a daemon, optionally discarding the controlling terminal
+ *
+ * @param[in] do_fork Should the process fork?
+ * @param[in] no_session Don't start a new session
+ * @param[in] log_stdour Should stdout be closed?
+**/
+void become_daemon(bool do_fork, bool no_session, bool log_stdout);
+
+/**
+ * @brief Exit daemon and log an error message at ERR level
+ *
+ * Optionally report failure to systemd if systemd integration is
+ * enabled.
+ *
+ * @param[in] msg Message to log, generated from error if NULL
+ * @param[in] error Errno of error that occurred
+**/
+void exit_daemon(const char *msg, int error);
+
+/**
+ * @brief Log at ERR level that the daemon is ready to serve connections
+ *
+ * Optionally report status to systemd if systemd integration is enabled.
+ *
+ * @param[in] daemon Name of daemon to include it message
+**/
+void daemon_ready(const char *daemon);
+
+/**
+ * @brief Log at ERR level the specified daemon status
+ *
+ * For example if it is not ready to serve connections and is waiting
+ * for some event to happen.
+ *
+ * Optionally report status to systemd if systemd integration is enabled.
+ *
+ * @param[in] daemon Name of daemon to include it message
+ * @param[in] msg Message to log
+**/
+void daemon_status(const char *daemon, const char *msg);
+
+#endif /* _BECOME_DAEMON_H */