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>
26 #define GRUB_DATETIME_SET_YEAR 1
27 #define GRUB_DATETIME_SET_MONTH 2
28 #define GRUB_DATETIME_SET_DAY 4
29 #define GRUB_DATETIME_SET_HOUR 8
30 #define GRUB_DATETIME_SET_MINUTE 16
31 #define GRUB_DATETIME_SET_SECOND 32
34 grub_cmd_date (grub_command_t cmd
__attribute__ ((unused
)),
35 int argc
, char **args
)
37 struct grub_datetime datetime
;
38 int limit
[6][2] = {{1980, 2079}, {1, 12}, {1, 31}, {0, 23}, {0, 59}, {0, 59}};
43 if (grub_get_datetime (&datetime
))
46 grub_printf ("%d-%02d-%02d %02d:%02d:%02d %s\n",
47 datetime
.year
, datetime
.month
, datetime
.day
,
48 datetime
.hour
, datetime
.minute
, datetime
.second
,
49 grub_get_weekday_name (&datetime
));
54 grub_memset (&value
, 0, sizeof (value
));
57 for (; argc
; argc
--, args
++)
60 int m1
, ofs
, n
, cur_mask
;
63 m1
= grub_strtoul (p
, &p
, 10);
74 cur_mask
= (1 << ofs
);
75 mask
&= ~(cur_mask
* (1 + 2 + 4));
77 for (n
= 1; (n
< 3) && (*p
); n
++)
82 value
[ofs
+ n
] = grub_strtoul (p
+ 1, &p
, 10);
83 cur_mask
|= (1 << (ofs
+ n
));
89 if ((ofs
== 0) && (n
== 2))
91 value
[ofs
+ 2] = value
[ofs
+ 1];
92 value
[ofs
+ 1] = value
[ofs
];
98 if ((value
[ofs
] < limit
[ofs
][0]) ||
99 (value
[ofs
] > limit
[ofs
][1]))
105 if (grub_get_datetime (&datetime
))
108 if (mask
& GRUB_DATETIME_SET_YEAR
)
109 datetime
.year
= value
[0];
111 if (mask
& GRUB_DATETIME_SET_MONTH
)
112 datetime
.month
= value
[1];
114 if (mask
& GRUB_DATETIME_SET_DAY
)
115 datetime
.day
= value
[2];
117 if (mask
& GRUB_DATETIME_SET_HOUR
)
118 datetime
.hour
= value
[3];
120 if (mask
& GRUB_DATETIME_SET_MINUTE
)
121 datetime
.minute
= value
[4];
123 if (mask
& GRUB_DATETIME_SET_SECOND
)
124 datetime
.second
= value
[5];
126 return grub_set_datetime (&datetime
);
129 return grub_error (GRUB_ERR_BAD_ARGUMENT
, "invalid datetime");
132 static grub_command_t cmd
;
137 grub_register_command ("date", grub_cmd_date
,
138 "date [[year-]month-day] [hour:minute[:second]]",
139 "Command to display/set current datetime.");
144 grub_unregister_command (cmd
);