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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
commit6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch)
tree32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/hook
parentInitial commit. (diff)
downloadgrub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.tar.xz
grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.zip
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/hook')
-rw-r--r--grub-core/hook/datehook.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/grub-core/hook/datehook.c b/grub-core/hook/datehook.c
new file mode 100644
index 0000000..ac75908
--- /dev/null
+++ b/grub-core/hook/datehook.c
@@ -0,0 +1,110 @@
+/* datehook.c - Module to install datetime hooks. */
+/*
+ * 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/>.
+ */
+
+#include <grub/types.h>
+#include <grub/dl.h>
+#include <grub/env.h>
+#include <grub/misc.h>
+#include <grub/normal.h>
+#include <grub/datetime.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const char *grub_datetime_names[] =
+{
+ "YEAR",
+ "MONTH",
+ "DAY",
+ "HOUR",
+ "MINUTE",
+ "SECOND",
+ "WEEKDAY",
+};
+
+static const char *
+grub_read_hook_datetime (struct grub_env_var *var,
+ const char *val __attribute__ ((unused)))
+{
+ struct grub_datetime datetime;
+ static char buf[6];
+
+ buf[0] = 0;
+ if (! grub_get_datetime (&datetime))
+ {
+ int i;
+
+ for (i = 0; i < 7; i++)
+ if (grub_strcmp (var->name, grub_datetime_names[i]) == 0)
+ {
+ int n;
+
+ switch (i)
+ {
+ case 0:
+ n = datetime.year;
+ break;
+ case 1:
+ n = datetime.month;
+ break;
+ case 2:
+ n = datetime.day;
+ break;
+ case 3:
+ n = datetime.hour;
+ break;
+ case 4:
+ n = datetime.minute;
+ break;
+ case 5:
+ n = datetime.second;
+ break;
+ default:
+ return grub_get_weekday_name (&datetime);
+ }
+
+ grub_snprintf (buf, sizeof (buf), "%d", n);
+ break;
+ }
+ }
+
+ return buf;
+}
+
+GRUB_MOD_INIT(datehook)
+{
+ unsigned i;
+
+ for (i = 0; i < ARRAY_SIZE (grub_datetime_names); i++)
+ {
+ grub_register_variable_hook (grub_datetime_names[i],
+ grub_read_hook_datetime, 0);
+ grub_env_export (grub_datetime_names[i]);
+ }
+}
+
+GRUB_MOD_FINI(datehook)
+{
+ unsigned i;
+
+ for (i = 0; i < ARRAY_SIZE (grub_datetime_names); i++)
+ {
+ grub_register_variable_hook (grub_datetime_names[i], 0, 0);
+ grub_env_unset (grub_datetime_names[i]);
+ }
+}