calendar.c revision 181323
1169689Skan/* 2169689Skan * Copyright (c) 1989, 1993, 1994 3169689Skan * The Regents of the University of California. All rights reserved. 4169689Skan * 5169689Skan * Redistribution and use in source and binary forms, with or without 6169689Skan * modification, are permitted provided that the following conditions 7169689Skan * are met: 8169689Skan * 1. Redistributions of source code must retain the above copyright 9169689Skan * notice, this list of conditions and the following disclaimer. 10169689Skan * 2. Redistributions in binary form must reproduce the above copyright 11169689Skan * notice, this list of conditions and the following disclaimer in the 12169689Skan * documentation and/or other materials provided with the distribution. 13169689Skan * 3. All advertising materials mentioning features or use of this software 14169689Skan * must display the following acknowledgement: 15169689Skan * This product includes software developed by the University of 16169689Skan * California, Berkeley and its contributors. 17169689Skan * 4. Neither the name of the University nor the names of its contributors 18169689Skan * may be used to endorse or promote products derived from this software 19169689Skan * without specific prior written permission. 20169689Skan * 21169689Skan * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22169689Skan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23169689Skan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24169689Skan * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25169689Skan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26169689Skan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27169689Skan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28169689Skan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29169689Skan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30169689Skan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31169689Skan * SUCH DAMAGE. 32169689Skan */ 33169689Skan 34169689Skan#ifndef lint 35169689Skanstatic const char copyright[] = 36169689Skan"@(#) Copyright (c) 1989, 1993\n\ 37169689Skan The Regents of the University of California. All rights reserved.\n"; 38169689Skan#endif 39169689Skan 40169689Skan#if 0 41169689Skan#ifndef lint 42169689Skanstatic char sccsid[] = "@(#)calendar.c 8.3 (Berkeley) 3/25/94"; 43169689Skan#endif 44169689Skan#endif 45169689Skan 46169689Skan#include <sys/cdefs.h> 47169689Skan__FBSDID("$FreeBSD: head/usr.bin/calendar/calendar.c 181323 2008-08-05 08:16:37Z edwin $"); 48169689Skan 49169689Skan#include <err.h> 50169689Skan#include <errno.h> 51169689Skan#include <locale.h> 52169689Skan#include <pwd.h> 53169689Skan#include <stdio.h> 54169689Skan#include <stdlib.h> 55169689Skan#include <time.h> 56169689Skan#include <unistd.h> 57169689Skan 58169689Skan#include "pathnames.h" 59169689Skan#include "calendar.h" 60169689Skan 61169689Skanstruct passwd *pw; 62169689Skanint doall = 0; 63169689Skantime_t f_time = 0; 64169689Skan 65169689Skanint f_dayAfter = 0; /* days after current date */ 66169689Skanint f_dayBefore = 0; /* days before current date */ 67169689Skanint Friday = 5; /* day before weekend */ 68169689Skan 69169689Skanstatic void usage(void) __dead2; 70169689Skan 71169689Skanint 72169689Skanmain(int argc, char *argv[]) 73169689Skan{ 74169689Skan int ch; 75169689Skan 76169689Skan (void)setlocale(LC_ALL, ""); 77169689Skan 78169689Skan while ((ch = getopt(argc, argv, "-A:aB:F:f:t:W:")) != -1) 79169689Skan switch (ch) { 80169689Skan case '-': /* backward contemptible */ 81169689Skan case 'a': 82169689Skan if (getuid()) { 83169689Skan errno = EPERM; 84169689Skan err(1, NULL); 85169689Skan } 86169689Skan doall = 1; 87169689Skan break; 88169689Skan 89169689Skan case 'f': /* other calendar file */ 90169689Skan calendarFile = optarg; 91169689Skan break; 92169689Skan 93169689Skan case 't': /* other date, undocumented, for tests */ 94169689Skan f_time = Mktime(optarg); 95169689Skan break; 96169689Skan 97169689Skan case 'W': /* we don't need no steenking Fridays */ 98169689Skan Friday = -1; 99169689Skan 100169689Skan /* FALLTHROUGH */ 101169689Skan case 'A': /* days after current date */ 102169689Skan f_dayAfter = atoi(optarg); 103169689Skan break; 104169689Skan 105169689Skan case 'B': /* days before current date */ 106169689Skan f_dayBefore = atoi(optarg); 107169689Skan break; 108169689Skan 109169689Skan case 'F': 110169689Skan Friday = atoi(optarg); 111169689Skan break; 112169689Skan 113169689Skan case '?': 114169689Skan default: 115169689Skan usage(); 116169689Skan } 117169689Skan 118169689Skan argc -= optind; 119169689Skan argv += optind; 120169689Skan 121169689Skan if (argc) 122169689Skan usage(); 123169689Skan 124169689Skan /* use current time */ 125169689Skan if (f_time <= 0) 126169689Skan (void)time(&f_time); 127169689Skan 128169689Skan settime(f_time); 129169689Skan 130169689Skan if (doall) 131169689Skan while ((pw = getpwent()) != NULL) { 132169689Skan (void)setegid(pw->pw_gid); 133169689Skan (void)initgroups(pw->pw_name, pw->pw_gid); 134169689Skan (void)seteuid(pw->pw_uid); 135169689Skan if (!chdir(pw->pw_dir)) 136169689Skan cal(); 137169689Skan (void)seteuid(0); 138169689Skan } 139169689Skan else 140169689Skan cal(); 141169689Skan exit(0); 142169689Skan} 143169689Skan 144169689Skan 145169689Skanstatic void __dead2 146169689Skanusage(void) 147169689Skan{ 148169689Skan 149169689Skan fprintf(stderr, "%s\n%s\n", 150169689Skan "usage: calendar [-a] [-A days] [-B days] [-F friday] " 151169689Skan "[-f calendarfile]", 152169689Skan " [-t dd[.mm[.year]]] [-W days]"); 153169689Skan exit(1); 154169689Skan} 155169689Skan