1 /*- 2 * Copyright (c) 1989, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <err.h> 34 #include <locale.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <time.h> 39 40 #include "calendar.h" 41 42 static time_t time1, time2; 43 const struct tm tm0; 44 char dayname[100]; 45 int year1, year2; 46 47 48 void 49 settimes(time_t now, int before, int after, int friday, struct tm *tp1, struct tm *tp2) 50 { 51 char *oldl, *lbufp; 52 struct tm tp; 53 54 localtime_r(&now, &tp); 55 56 /* Friday displays Monday's events */ 57 if (after == 0 && before == 0 && friday != -1) 58 after = tp.tm_wday == friday ? 3 : 1; 59 60 time1 = now - SECSPERDAY * before; 61 localtime_r(&time1, tp1); 62 year1 = 1900 + tp1->tm_year; 63 time2 = now + SECSPERDAY * after; 64 localtime_r(&time2, tp2); 65 year2 = 1900 + tp2->tm_year; 66 67 strftime(dayname, sizeof(dayname) - 1, "%A, %d %B %Y", tp1); 68 69 oldl = NULL; 70 lbufp = setlocale(LC_TIME, NULL); 71 if (lbufp != NULL && (oldl = strdup(lbufp)) == NULL) 72 errx(1, "cannot allocate memory"); 73 (void)setlocale(LC_TIME, "C"); 74 (void)setlocale(LC_TIME, (oldl != NULL ? oldl : "")); 75 if (oldl != NULL) 76 free(oldl); 77 78 setnnames(); 79 } 80 81 /* convert Day[/Month][/Year] into unix time (since 1970) 82 * Day: two digits, Month: two digits, Year: digits 83 */ 84 time_t 85 Mktime(char *dp) 86 { 87 time_t t; 88 int d, m, y; 89 struct tm tm, tp; 90 91 (void)time(&t); 92 localtime_r(&t, &tp); 93 94 tm = tm0; 95 tm.tm_mday = tp.tm_mday; 96 tm.tm_mon = tp.tm_mon; 97 tm.tm_year = tp.tm_year; 98 99 switch (sscanf(dp, "%d.%d.%d", &d, &m, &y)) { 100 case 3: 101 if (y > 1900) 102 y -= 1900; 103 tm.tm_year = y; 104 /* FALLTHROUGH */ 105 case 2: 106 tm.tm_mon = m - 1; 107 /* FALLTHROUGH */ 108 case 1: 109 tm.tm_mday = d; 110 } 111 112 #ifdef DEBUG 113 fprintf(stderr, "Mktime: %d %d %s\n", 114 (int)mktime(&tm), (int)t, asctime(&tm)); 115 #endif 116 return (mktime(&tm)); 117 } 118