diff options
Diffstat (limited to 'usr.bin/calendar/day.c')
| -rw-r--r-- | usr.bin/calendar/day.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/usr.bin/calendar/day.c b/usr.bin/calendar/day.c new file mode 100644 index 0000000..237b6b5 --- /dev/null +++ b/usr.bin/calendar/day.c @@ -0,0 +1,117 @@ +/*- + * 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. + * 4. 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" + +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) +{ + char *oldl, *lbufp; + 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); + + oldl = NULL; + lbufp = setlocale(LC_TIME, NULL); + if (lbufp != NULL && (oldl = strdup(lbufp)) == NULL) + errx(1, "cannot allocate memory"); + (void)setlocale(LC_TIME, "C"); + (void)setlocale(LC_TIME, (oldl != NULL ? oldl : "")); + if (oldl != NULL) + free(oldl); + + 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)); +} |
