1
/* date.c - command to display/set current datetime. */
3
* GRUB -- GRand Unified Bootloader
4
* Copyright (C) 2008 Free Software Foundation, Inc.
6
* GRUB is free software: you can redistribute it and/or modify
7
* it under the terms of the GNU General Public License as published by
8
* the Free Software Foundation, either version 3 of the License, or
9
* (at your option) any later version.
11
* GRUB is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
* GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public License
17
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
22
#include <grub/misc.h>
23
#include <grub/datetime.h>
24
#include <grub/command.h>
25
#include <grub/i18n.h>
27
#define GRUB_DATETIME_SET_YEAR 1
28
#define GRUB_DATETIME_SET_MONTH 2
29
#define GRUB_DATETIME_SET_DAY 4
30
#define GRUB_DATETIME_SET_HOUR 8
31
#define GRUB_DATETIME_SET_MINUTE 16
32
#define GRUB_DATETIME_SET_SECOND 32
35
grub_cmd_date (grub_command_t cmd __attribute__ ((unused)),
36
int argc, char **args)
38
struct grub_datetime datetime;
39
int limit[6][2] = {{1980, 2079}, {1, 12}, {1, 31}, {0, 23}, {0, 59}, {0, 59}};
44
if (grub_get_datetime (&datetime))
47
grub_printf ("%d-%02d-%02d %02d:%02d:%02d %s\n",
48
datetime.year, datetime.month, datetime.day,
49
datetime.hour, datetime.minute, datetime.second,
50
grub_get_weekday_name (&datetime));
55
grub_memset (&value, 0, sizeof (value));
58
for (; argc; argc--, args++)
61
int m1, ofs, n, cur_mask;
64
m1 = grub_strtoul (p, &p, 10);
75
cur_mask = (1 << ofs);
76
mask &= ~(cur_mask * (1 + 2 + 4));
78
for (n = 1; (n < 3) && (*p); n++)
83
value[ofs + n] = grub_strtoul (p + 1, &p, 10);
84
cur_mask |= (1 << (ofs + n));
90
if ((ofs == 0) && (n == 2))
92
value[ofs + 2] = value[ofs + 1];
93
value[ofs + 1] = value[ofs];
99
if ((value [ofs] < limit[ofs][0]) ||
100
(value [ofs] > limit[ofs][1]))
106
if (grub_get_datetime (&datetime))
109
if (mask & GRUB_DATETIME_SET_YEAR)
110
datetime.year = value[0];
112
if (mask & GRUB_DATETIME_SET_MONTH)
113
datetime.month = value[1];
115
if (mask & GRUB_DATETIME_SET_DAY)
116
datetime.day = value[2];
118
if (mask & GRUB_DATETIME_SET_HOUR)
119
datetime.hour = value[3];
121
if (mask & GRUB_DATETIME_SET_MINUTE)
122
datetime.minute = value[4];
124
if (mask & GRUB_DATETIME_SET_SECOND)
125
datetime.second = value[5];
127
return grub_set_datetime (&datetime);
130
return grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid datetime");
133
static grub_command_t cmd;
138
grub_register_command ("date", grub_cmd_date,
139
N_("[[year-]month-day] [hour:minute[:second]]"),
140
N_("Command to display/set current datetime."));
145
grub_unregister_command (cmd);