1 files changed, 147 insertions, 0 deletions
diff --git a/sys.c b/sys.c
new file mode 100644
index 0000000..4d68b37
--- /dev/null
+++ b/sys.c
@@ -0,0 +1,147 @@
+/*
+  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 file contains all the conditionally compiled bits that pull
+  in the various operating-system specific modules
+  */
+
+#include "config.h"
+
+#include "sysincl.h"
+
+#include "sys.h"
+#include "sys_null.h"
+#include "logging.h"
+
+#if defined(LINUX)
+#include "sys_linux.h"
+#elif defined(SOLARIS)
+#include "sys_solaris.h"
+#elif defined(NETBSD) || defined(FREEBSD)
+#include "sys_netbsd.h"
+#elif defined(MACOSX)
+#include "sys_macosx.h"
+#endif
+
+/* ================================================== */
+
+static int null_driver;
+
+/* ================================================== */
+
+void
+SYS_Initialise(int clock_control)
+{
+  null_driver = !clock_control;
+  if (null_driver) {
+    SYS_Null_Initialise();
+    return;
+  }
+#if defined(LINUX)
+  SYS_Linux_Initialise();
+#elif defined(SOLARIS)
+  SYS_Solaris_Initialise();
+#elif defined(NETBSD) || defined(FREEBSD)
+  SYS_NetBSD_Initialise();
+#elif defined(MACOSX)
+  SYS_MacOSX_Initialise();
+#else
+#error Unknown system
+#endif
+}
+
+/* ================================================== */
+
+void
+SYS_Finalise(void)
+{
+  if (null_driver) {
+    SYS_Null_Finalise();
+    return;
+  }
+#if defined(LINUX)
+  SYS_Linux_Finalise();
+#elif defined(SOLARIS)
+  SYS_Solaris_Finalise();
+#elif defined(NETBSD) || defined(FREEBSD)
+  SYS_NetBSD_Finalise();
+#elif defined(MACOSX)
+  SYS_MacOSX_Finalise();
+#else
+#error Unknown system
+#endif
+}
+
+/* ================================================== */
+
+void SYS_DropRoot(uid_t uid, gid_t gid)
+{
+#if defined(LINUX) && defined (FEAT_PRIVDROP)
+  SYS_Linux_DropRoot(uid, gid, !null_driver);
+#elif defined(SOLARIS) && defined(FEAT_PRIVDROP)
+  SYS_Solaris_DropRoot(uid, gid);
+#elif (defined(NETBSD) || defined(FREEBSD)) && defined(FEAT_PRIVDROP)
+  SYS_NetBSD_DropRoot(uid, gid);
+#elif defined(MACOSX) && defined(FEAT_PRIVDROP)
+  SYS_MacOSX_DropRoot(uid, gid);
+#else
+  LOG_FATAL("dropping root privileges not supported");
+#endif
+}
+
+/* ================================================== */
+
+void SYS_EnableSystemCallFilter(int level)
+{
+#if defined(LINUX) && defined(FEAT_SCFILTER)
+  SYS_Linux_EnableSystemCallFilter(level);
+#else
+  LOG_FATAL("system call filter not supported");
+#endif
+}
+
+/* ================================================== */
+
+void SYS_SetScheduler(int SchedPriority)
+{
+#if defined(LINUX) && defined(HAVE_SCHED_SETSCHEDULER)
+  SYS_Linux_SetScheduler(SchedPriority);
+#elif defined(MACOSX)
+  SYS_MacOSX_SetScheduler(SchedPriority);
+#else
+  LOG_FATAL("scheduler priority setting not supported");
+#endif
+}
+
+/* ================================================== */
+
+void SYS_LockMemory(void)
+{
+#if defined(LINUX) && defined(HAVE_MLOCKALL)
+  SYS_Linux_MemLockAll(1);
+#else
+  LOG_FATAL("memory locking not supported");
+#endif
+}
+
+/* ================================================== */