fd1efedc79
It does extremely useful things like execute sendmail and spew dubiously accurate factoids. From the feedback, it seems like it is an essential utility in a modern unix and not at all a useless bikeshed. How do those Linux people live without it? Reverts r358561.
110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 1989, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <err.h>
|
|
#include <locale.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
#include "calendar.h"
|
|
|
|
static time_t time1, time2;
|
|
const struct tm tm0;
|
|
char dayname[100];
|
|
int year1, year2;
|
|
|
|
|
|
void
|
|
settimes(time_t now, int before, int after, int friday, struct tm *tp1, struct tm *tp2)
|
|
{
|
|
struct tm tp;
|
|
|
|
localtime_r(&now, &tp);
|
|
|
|
/* Friday displays Monday's events */
|
|
if (after == 0 && before == 0 && friday != -1)
|
|
after = tp.tm_wday == friday ? 3 : 1;
|
|
|
|
time1 = now - SECSPERDAY * before;
|
|
localtime_r(&time1, tp1);
|
|
year1 = 1900 + tp1->tm_year;
|
|
time2 = now + SECSPERDAY * after;
|
|
localtime_r(&time2, tp2);
|
|
year2 = 1900 + tp2->tm_year;
|
|
|
|
strftime(dayname, sizeof(dayname) - 1, "%A, %d %B %Y", tp1);
|
|
|
|
setnnames();
|
|
}
|
|
|
|
/* convert Day[/Month][/Year] into unix time (since 1970)
|
|
* Day: two digits, Month: two digits, Year: digits
|
|
*/
|
|
time_t
|
|
Mktime(char *dp)
|
|
{
|
|
time_t t;
|
|
int d, m, y;
|
|
struct tm tm, tp;
|
|
|
|
(void)time(&t);
|
|
localtime_r(&t, &tp);
|
|
|
|
tm = tm0;
|
|
tm.tm_mday = tp.tm_mday;
|
|
tm.tm_mon = tp.tm_mon;
|
|
tm.tm_year = tp.tm_year;
|
|
|
|
switch (sscanf(dp, "%d.%d.%d", &d, &m, &y)) {
|
|
case 3:
|
|
if (y > 1900)
|
|
y -= 1900;
|
|
tm.tm_year = y;
|
|
/* FALLTHROUGH */
|
|
case 2:
|
|
tm.tm_mon = m - 1;
|
|
/* FALLTHROUGH */
|
|
case 1:
|
|
tm.tm_mday = d;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
fprintf(stderr, "Mktime: %d %d %s\n",
|
|
(int)mktime(&tm), (int)t, asctime(&tm));
|
|
#endif
|
|
return (mktime(&tm));
|
|
}
|