File: sys.h

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chrony 3.0-4+deb9u2
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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(void);

/* Called at the end of the run to do final clean-up */
extern void SYS_Finalise(void);

/* Drop root privileges to the specified user and group */
extern void SYS_DropRoot(uid_t uid, gid_t gid);

/* Enable a system call filter to allow only system calls
   which chronyd normally needs after initialization */
extern void SYS_EnableSystemCallFilter(int level);

extern void SYS_SetScheduler(int SchedPriority);
extern void SYS_LockMemory(void);

#endif /* GOT_SYS_H */