grub/commands/date.c
bean 42ce5170b7 2008-08-15 Bean <bean123ch@gmail.com>
* conf/i386-pc.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-coreboot.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-ieee1275.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-efi.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/x86_64-efi.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* kern/env.c (grub_env_insert): Fix a bug in prevp pointer.

	* commands/date.c: New file.

	* hook/datehook.c: Likewise.

	* include/grub/lib/datetime.h: Likewise.

	* include/grub/i386/cmos.h: Likewise.

	* lib/datetime.c: Likewise.

	* lib/i386/datetime.c: Likewise.

	* lib/efi/datetime.c: Likewise.
2008-08-15 15:39:02 +00:00

145 lines
3.6 KiB
C

/* date.c - command to display/set current datetime. */
/*
* 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/normal.h>
#include <grub/dl.h>
#include <grub/arg.h>
#include <grub/err.h>
#include <grub/misc.h>
#include <grub/lib/datetime.h>
#define GRUB_DATETIME_SET_YEAR 1
#define GRUB_DATETIME_SET_MONTH 2
#define GRUB_DATETIME_SET_DAY 4
#define GRUB_DATETIME_SET_HOUR 8
#define GRUB_DATETIME_SET_MINUTE 16
#define GRUB_DATETIME_SET_SECOND 32
static grub_err_t
grub_cmd_date (struct grub_arg_list *state __attribute__ ((unused)),
int argc, char **args)
{
struct grub_datetime datetime;
int limit[6][2] = {{1980, 2079}, {1, 12}, {1, 31}, {0, 23}, {0, 59}, {0, 59}};
int value[6], mask;
if (argc == 0)
{
if (grub_get_datetime (&datetime))
return grub_errno;
grub_printf ("%d-%02d-%02d %02d:%02d:%02d %s\n",
datetime.year, datetime.month, datetime.day,
datetime.hour, datetime.minute, datetime.second,
grub_get_weekday_name (&datetime));
return 0;
}
grub_memset (&value, 0, sizeof (value));
mask = 0;
for (; argc; argc--, args++)
{
char *p, c;
int m1, ofs, n, cur_mask;
p = args[0];
m1 = grub_strtoul (p, &p, 10);
c = *p;
if (c == '-')
ofs = 0;
else if (c == ':')
ofs = 3;
else
goto fail;
value[ofs] = m1;
cur_mask = (1 << ofs);
mask &= ~(cur_mask * (1 + 2 + 4));
for (n = 1; (n < 3) && (*p); n++)
{
if (*p != c)
goto fail;
value[ofs + n] = grub_strtoul (p + 1, &p, 10);
cur_mask |= (1 << (ofs + n));
}
if (*p)
goto fail;
if ((ofs == 0) && (n == 2))
{
value[ofs + 2] = value[ofs + 1];
value[ofs + 1] = value[ofs];
ofs++;
cur_mask <<= 1;
}
for (; n; n--, ofs++)
if ((value [ofs] < limit[ofs][0]) ||
(value [ofs] > limit[ofs][1]))
goto fail;
mask |= cur_mask;
}
if (grub_get_datetime (&datetime))
return grub_errno;
if (mask & GRUB_DATETIME_SET_YEAR)
datetime.year = value[0];
if (mask & GRUB_DATETIME_SET_MONTH)
datetime.month = value[1];
if (mask & GRUB_DATETIME_SET_DAY)
datetime.day = value[2];
if (mask & GRUB_DATETIME_SET_HOUR)
datetime.hour = value[3];
if (mask & GRUB_DATETIME_SET_MINUTE)
datetime.minute = value[4];
if (mask & GRUB_DATETIME_SET_SECOND)
datetime.second = value[5];
return grub_set_datetime (&datetime);
fail:
return grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid datetime");
}
GRUB_MOD_INIT(date)
{
(void) mod; /* To stop warning. */
grub_register_command ("date", grub_cmd_date,
GRUB_COMMAND_FLAG_BOTH,
"date [[year-]month-day] [hour:minute[:second]]",
"Command to display/set current datetime.", 0);
}
GRUB_MOD_FINI(date)
{
grub_unregister_command ("date");
}