--- /dev/null
+/*
+ * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef FD_TRACKER_UTILS_H
+#define FD_TRACKER_UTILS_H
+
+/*
+ * Utility implementing a close_fd callback which receives one file descriptor
+ * and closes it, returning close()'s return value.
+ */
+int fd_tracker_util_close_fd(void *, int *fd);
+
+#endif /* FD_TRACKER_UTILS_H */