/* settime -- set the system clock
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
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
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Paul Eggert. */
#include "timespec.h"
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include <errno.h>
+
+/* Some systems don't have ENOSYS. */
+#ifndef ENOSYS
+# ifdef ENOTSUP
+# define ENOSYS ENOTSUP
+# else
+/* Some systems don't have ENOTSUP either. */
+# define ENOSYS EINVAL
+# endif
+#endif
+
/* Set the system time. */
int
settime (struct timespec const *ts)
{
#if defined CLOCK_REALTIME && HAVE_CLOCK_SETTIME
- if (clock_settime (CLOCK_REALTIME, ts) == 0)
- return 0;
+ {
+ int r = clock_settime (CLOCK_REALTIME, ts);
+ if (r == 0 || errno == EPERM)
+ return r;
+ }
#endif
+#if HAVE_SETTIMEOFDAY
{
struct timeval tv;
+ int r;
tv.tv_sec = ts->tv_sec;
tv.tv_usec = ts->tv_nsec / 1000;
- return settimeofday (&tv, 0);
+ r = settimeofday (&tv, 0);
+ if (r == 0 || errno == EPERM)
+ return r;
}
+#endif
+
+#if HAVE_STIME
+ return stime (&ts->tv_sec);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
}