1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <err.h> 36 #include <locale.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <time.h> 41 42 #include "calendar.h" 43 44 static time_t time1, time2; 45 const struct tm tm0; 46 char dayname[100]; 47 int year1, year2; 48 49 50 void 51 settimes(time_t now, int before, int after, int friday, struct tm *tp1, struct tm *tp2) 52 { 53 struct tm tp; 54 55 localtime_r(&now, &tp); 56 57 /* Friday displays Monday's events */ 58 if (after == 0 && before == 0 && friday != -1) 59 after = tp.tm_wday == friday ? 3 : 1; 60 61 time1 = now - SECSPERDAY * before; 62 localtime_r(&time1, tp1); 63 year1 = 1900 + tp1->tm_year; 64 time2 = now + SECSPERDAY * after; 65 localtime_r(&time2, tp2); 66 year2 = 1900 + tp2->tm_year; 67 68 strftime(dayname, sizeof(dayname) - 1, "%A, %d %B %Y", tp1); 69 70 setnnames(); 71 } 72 73 /* convert Day[/Month][/Year] into unix time (since 1970) 74 * Day: two digits, Month: two digits, Year: digits 75 */ 76 time_t 77 Mktime(char *dp) 78 { 79 time_t t; 80 int d, m, y; 81 struct tm tm, tp; 82 83 (void)time(&t); 84 localtime_r(&t, &tp); 85 86 tm = tm0; 87 tm.tm_mday = tp.tm_mday; 88 tm.tm_mon = tp.tm_mon; 89 tm.tm_year = tp.tm_year; 90 91 switch (sscanf(dp, "%d.%d.%d", &d, &m, &y)) { 92 case 3: 93 if (y > 1900) 94 y -= 1900; 95 tm.tm_year = y; 96 /* FALLTHROUGH */ 97 case 2: 98 tm.tm_mon = m - 1; 99 /* FALLTHROUGH */ 100 case 1: 101 tm.tm_mday = d; 102 } 103 104 #ifdef DEBUG 105 fprintf(stderr, "Mktime: %d %d %s\n", 106 (int)mktime(&tm), (int)t, asctime(&tm)); 107 #endif 108 return (mktime(&tm)); 109 } 110