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+/*
+ chronyd/chronyc - Programs for keeping computer clocks accurate.
+
+ **********************************************************************
+ * Copyright (C) Richard P. Curnow 1997-2002
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License 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.
+ *
+ **********************************************************************
+
+ =======================================================================
+
+ This is the header for the file that links in the operating system-
+ specific parts of the software
+
+*/
+
+#ifndef GOT_SYS_H
+#define GOT_SYS_H
+
+/* Called at the start of the run to do initialisation */
+extern void SYS_Initialise(int clock_control);
+
+/* Called at the end of the run to do final clean-up */
+extern void SYS_Finalise(void);
+
+typedef enum {
+ SYS_MAIN_PROCESS,
+ SYS_NTSKE_HELPER,
+} SYS_ProcessContext;
+
+/* Switch to the specified user and group in given context */
+extern void SYS_DropRoot(uid_t uid, gid_t gid, SYS_ProcessContext context);
+
+/* Enable a system call filter to allow only system calls
+ which chronyd normally needs after initialization */
+extern void SYS_EnableSystemCallFilter(int level, SYS_ProcessContext context);
+
+extern void SYS_SetScheduler(int SchedPriority);
+extern void SYS_LockMemory(void);
+
+#endif /* GOT_SYS_H */