1 files changed, 69 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/adjtime.c b/sysdeps/unix/sysv/linux/adjtime.c
new file mode 100644
index 0000000000..3673cd9164
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/adjtime.c
@@ -0,0 +1,69 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+
+#define MAX_SEC	(LONG_MAX / 1000000L - 2)
+#define MIN_SEC	(LONG_MIN / 1000000L + 2)
+
+int
+__adjtime (itv, otv)
+     const struct timeval *itv;
+     struct timeval *otv;
+{
+  struct timex tntx;
+
+  if (itv)
+    {
+      struct timeval tmp;
+
+      /* We will do some check here. */
+      tmp.tv_sec = itv->tv_sec + itv->tv_usec / 1000000L;
+      tmp.tv_usec = itv->tv_usec % 1000000L;
+      if (tmp.tv_sec > MAX_SEC || tmp.tv_sec < MIN_SEC)
+	{
+	  errno = EINVAL;
+	  return -1;
+	}
+      tntx.offset = tmp.tv_usec + tmp.tv_sec * 1000000L;
+      tntx.mode = ADJ_OFFSET_SINGLESHOT;
+    }
+  else
+    tntx.mode = 0;
+
+  if (__adjtimex (&tntx) < 0) return -1;
+
+  if (otv)
+    {
+      if (tntx.offset < 0)
+	{
+	  otv->tv_usec = -(-tntx.offset % 1000000);
+	  otv->tv_sec  = -(-tntx.offset / 1000000);
+	}
+      else
+	{
+	  otv->tv_usec = tntx.offset % 1000000;
+	  otv->tv_sec  = tntx.offset / 1000000;
+	}
+    }
+  return 0;
+}
+
+weak_alias (__adjtime, adjtime)