[PATCH] settimeofday ... attempt 1

[Mike Simons <msimons at moria dot simons-clan dot com>]

Morning all,

  I am amazed at how well this library and tool chain works...

  I have not attempted to build cygwin with the following patch.

  I have built a ntpdate binary (from ntp-4.0.99j) for win95/98 
which contains the code below in the ntp sources and that appears
to correctly set the system time.  

  Let me know if there are any suggestions/problems...

    TTFN,
      Mike Simons


msimons@truth:~/cygwin/src/winsup/cygwin$ cvs diff -u times.cc
Index: times.cc
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/times.cc,v
retrieving revision 1.12
diff -u -r1.12 times.cc
--- times.cc    2000/10/28 05:41:43     1.12
+++ times.cc    2001/02/19 10:37:27
@@ -92,10 +92,29 @@

 /* settimeofday: BSD */
 extern "C" int
-settimeofday (const struct timeval *, const struct timezone *)
+settimeofday (const struct timeval *tv, const struct timezone *tz)
 {
-  set_errno (ENOSYS);
-  return -1;
+  SYSTEMTIME st;
+  struct tm *ptm;
+  int res;
+
+  tz = tz;
+
+  ptm = gmtime(&tv->tv_sec);
+  st.wYear         = ptm->tm_year + 1900;
+  st.wMonth        = ptm->tm_mon + 1;
+  st.wDayOfWeek    = ptm->tm_wday;
+  st.wDay          = ptm->tm_mday;
+  st.wHour         = ptm->tm_hour;
+  st.wMinute       = ptm->tm_min;
+  st.wSecond       = ptm->tm_sec;
+  st.wMilliseconds = tv->tv_usec / 1000;
+
+  res = !SetSystemTime(&st);
+
+  syscall_printf ("%d = settimeofday (%x, %x)", res, p, z);
+
+  return res;
 }

 /* timezone: standards? */