Adding upstream version 2.06.upstream/2.06upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 133 insertions, 0 deletions

diff --git a/include/grub/datetime.h b/include/grub/datetime.h
new file mode 100644
index 0000000..23ae079
--- /dev/null
+++ b/include/grub/datetime.h
@@ -0,0 +1,133 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef KERNEL_DATETIME_HEADER
+#define KERNEL_DATETIME_HEADER	1
+
+#include <grub/types.h>
+#include <grub/err.h>
+
+struct grub_datetime
+{
+  grub_uint16_t year;
+  grub_uint8_t month;
+  grub_uint8_t day;
+  grub_uint8_t hour;
+  grub_uint8_t minute;
+  grub_uint8_t second;
+};
+
+/* Return date and time.  */
+#ifdef GRUB_MACHINE_EMU
+grub_err_t EXPORT_FUNC(grub_get_datetime) (struct grub_datetime *datetime);
+
+/* Set date and time.  */
+grub_err_t EXPORT_FUNC(grub_set_datetime) (struct grub_datetime *datetime);
+#else
+grub_err_t grub_get_datetime (struct grub_datetime *datetime);
+
+/* Set date and time.  */
+grub_err_t grub_set_datetime (struct grub_datetime *datetime);
+#endif
+
+int grub_get_weekday (struct grub_datetime *datetime);
+const char *grub_get_weekday_name (struct grub_datetime *datetime);
+
+void grub_unixtime2datetime (grub_int64_t nix,
+			     struct grub_datetime *datetime);
+
+static inline int
+grub_datetime2unixtime (const struct grub_datetime *datetime, grub_int64_t *nix)
+{
+  grub_int32_t ret;
+  int y4, ay;
+  const grub_uint16_t monthssum[12]
+    = { 0,
+	31, 
+	31 + 28,
+	31 + 28 + 31,
+	31 + 28 + 31 + 30,
+	31 + 28 + 31 + 30 + 31, 
+	31 + 28 + 31 + 30 + 31 + 30,
+	31 + 28 + 31 + 30 + 31 + 30 + 31,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
+	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30};
+  const grub_uint8_t months[12] = {31, 28, 31, 30, 31, 30,
+				   31, 31, 30, 31, 30, 31};
+  const int SECPERMIN = 60;
+  const int SECPERHOUR = 60 * SECPERMIN;
+  const int SECPERDAY = 24 * SECPERHOUR;
+  const int SECPERYEAR = 365 * SECPERDAY;
+  const int SECPER4YEARS = 4 * SECPERYEAR + SECPERDAY;
+
+  if (datetime->year > 2038 || datetime->year < 1901)
+    return 0;
+  if (datetime->month > 12 || datetime->month < 1)
+    return 0;
+
+  /* In the period of validity of unixtime all years divisible by 4
+     are bissextile*/
+  /* Convenience: let's have 3 consecutive non-bissextile years
+     at the beginning of the epoch. So count from 1973 instead of 1970 */
+  ret = 3 * SECPERYEAR + SECPERDAY;
+
+  /* Transform C divisions and modulos to mathematical ones */
+  y4 = ((datetime->year - 1) >> 2) - (1973 / 4);
+  ay = datetime->year - 1973 - 4 * y4;
+  ret += y4 * SECPER4YEARS;
+  ret += ay * SECPERYEAR;
+
+  ret += monthssum[datetime->month - 1] * SECPERDAY;
+  if (ay == 3 && datetime->month >= 3)
+    ret += SECPERDAY;
+
+  ret += (datetime->day - 1) * SECPERDAY;
+  if ((datetime->day > months[datetime->month - 1]
+       && (!ay || datetime->month != 2 || datetime->day != 29))
+      || datetime->day < 1)
+    return 0;
+
+  ret += datetime->hour * SECPERHOUR;
+  if (datetime->hour > 23)
+    return 0;
+  ret += datetime->minute * 60;
+  if (datetime->minute > 59)
+    return 0;
+
+  ret += datetime->second;
+  /* Accept leap seconds.  */
+  if (datetime->second > 60)
+    return 0;
+
+  if ((datetime->year > 1980 && ret < 0)
+      || (datetime->year < 1960 && ret > 0))
+    return 0;
+  *nix = ret;
+  return 1;
+}
+
+#if (defined (__powerpc__) || defined (__sparc__)) && !defined (GRUB_UTIL)
+grub_err_t
+grub_get_datetime_cmos (struct grub_datetime *datetime);
+grub_err_t
+grub_set_datetime_cmos (struct grub_datetime *datetime);
+#endif
+
+#endif /* ! KERNEL_DATETIME_HEADER */