150 lines
3.8 KiB
C
150 lines
3.8 KiB
C
/* date.c - command to display/set current datetime. */
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/*
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* VAS_EBOOT -- GRand Unified Bootloader
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* Copyright (C) 2008 Free Software Foundation, Inc.
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*
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* VAS_EBOOT is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* VAS_EBOOT is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <VasEBoot/dl.h>
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#include <VasEBoot/err.h>
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#include <VasEBoot/misc.h>
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#include <VasEBoot/datetime.h>
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#include <VasEBoot/command.h>
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#include <VasEBoot/i18n.h>
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VAS_EBOOT_MOD_LICENSE ("GPLv3+");
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#define VAS_EBOOT_DATETIME_SET_YEAR 1
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#define VAS_EBOOT_DATETIME_SET_MONTH 2
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#define VAS_EBOOT_DATETIME_SET_DAY 4
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#define VAS_EBOOT_DATETIME_SET_HOUR 8
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#define VAS_EBOOT_DATETIME_SET_MINUTE 16
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#define VAS_EBOOT_DATETIME_SET_SECOND 32
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static VasEBoot_err_t
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VasEBoot_cmd_date (VasEBoot_command_t cmd __attribute__ ((unused)),
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int argc, char **args)
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{
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struct VasEBoot_datetime datetime;
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int limit[6][2] = {{1980, 2079}, {1, 12}, {1, 31}, {0, 23}, {0, 59}, {0, 59}};
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int value[6], mask;
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if (argc == 0)
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{
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if (VasEBoot_get_datetime (&datetime))
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return VasEBoot_errno;
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VasEBoot_printf ("%d-%02d-%02d %02d:%02d:%02d %s\n",
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datetime.year, datetime.month, datetime.day,
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datetime.hour, datetime.minute, datetime.second,
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VasEBoot_get_weekday_name (&datetime));
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return 0;
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}
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VasEBoot_memset (&value, 0, sizeof (value));
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mask = 0;
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for (; argc; argc--, args++)
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{
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const char *p;
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char c;
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int m1, ofs, n, cur_mask;
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p = args[0];
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m1 = VasEBoot_strtoul (p, &p, 10);
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c = *p;
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if (c == '-')
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ofs = 0;
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else if (c == ':')
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ofs = 3;
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else
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goto fail;
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value[ofs] = m1;
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cur_mask = (1 << ofs);
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mask &= ~(cur_mask * (1 + 2 + 4));
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for (n = 1; (n < 3) && (*p); n++)
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{
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if (*p != c)
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goto fail;
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value[ofs + n] = VasEBoot_strtoul (p + 1, &p, 10);
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cur_mask |= (1 << (ofs + n));
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}
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if (*p)
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goto fail;
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if ((ofs == 0) && (n == 2))
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{
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value[ofs + 2] = value[ofs + 1];
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value[ofs + 1] = value[ofs];
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ofs++;
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cur_mask <<= 1;
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}
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for (; n; n--, ofs++)
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if ((value [ofs] < limit[ofs][0]) ||
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(value [ofs] > limit[ofs][1]))
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goto fail;
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mask |= cur_mask;
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}
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if (VasEBoot_get_datetime (&datetime))
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return VasEBoot_errno;
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if (mask & VAS_EBOOT_DATETIME_SET_YEAR)
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datetime.year = value[0];
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if (mask & VAS_EBOOT_DATETIME_SET_MONTH)
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datetime.month = value[1];
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if (mask & VAS_EBOOT_DATETIME_SET_DAY)
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datetime.day = value[2];
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if (mask & VAS_EBOOT_DATETIME_SET_HOUR)
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datetime.hour = value[3];
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if (mask & VAS_EBOOT_DATETIME_SET_MINUTE)
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datetime.minute = value[4];
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if (mask & VAS_EBOOT_DATETIME_SET_SECOND)
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datetime.second = value[5];
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return VasEBoot_set_datetime (&datetime);
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fail:
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return VasEBoot_error (VAS_EBOOT_ERR_BAD_ARGUMENT, "invalid datetime");
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}
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static VasEBoot_command_t cmd;
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VAS_EBOOT_MOD_INIT(date)
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{
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cmd =
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VasEBoot_register_command ("date", VasEBoot_cmd_date,
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N_("[[year-]month-day] [hour:minute[:second]]"),
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N_("Display/set current datetime."));
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}
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VAS_EBOOT_MOD_FINI(date)
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{
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VasEBoot_unregister_command (cmd);
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}
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