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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1989, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif 39 40 #if 0 41 #ifndef lint 42 static char sccsid[] = "@(#)calendar.c 8.3 (Berkeley) 3/25/94"; 43 #endif 44 #endif 45 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD: src/usr.bin/calendar/calendar.c,v 1.11.2.5 2003/04/06 20:04:56 dwmalone Exp $"); 48 49 #include <err.h> 50 #include <errno.h> 51 #include <locale.h> 52 #include <pwd.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <time.h> 56 #include <unistd.h> 57 58 #include "pathnames.h" 59 #include "calendar.h" 60 61 struct passwd *pw; 62 int doall = 0; 63 time_t f_time = 0; 64 65 int f_dayAfter = 0; /* days after current date */ 66 int f_dayBefore = 0; /* days before current date */ 67 int Friday = 5; /* day before weekend */ 68 69 int 70 main(argc, argv) 71 int argc; 72 char *argv[]; 73 { 74 int ch; 75 76 (void) setlocale(LC_ALL, ""); 77 78 while ((ch = getopt(argc, argv, "-af:t:A:B:F:W:")) != -1) 79 switch (ch) { 80 case '-': /* backward contemptible */ 81 case 'a': 82 if (getuid()) { 83 errno = EPERM; 84 err(1, NULL); 85 } 86 doall = 1; 87 break; 88 89 90 case 'f': /* other calendar file */ 91 calendarFile = optarg; 92 break; 93 94 case 't': /* other date, undocumented, for tests */ 95 f_time = Mktime (optarg); 96 break; 97 98 case 'W': /* we don't need no steenking Fridays */ 99 Friday = -1; 100 101 /* FALLTHROUGH */ 102 case 'A': /* days after current date */ 103 f_dayAfter = atoi(optarg); 104 break; 105 106 case 'B': /* days before current date */ 107 f_dayBefore = atoi(optarg); 108 break; 109 110 case 'F': 111 Friday = atoi(optarg); 112 break; 113 114 case '?': 115 default: 116 usage(); 117 } 118 argc -= optind; 119 argv += optind; 120 121 if (argc) 122 usage(); 123 124 /* use current time */ 125 if (f_time <= 0) 126 (void)time(&f_time); 127 128 settime(f_time); 129 130 if (doall) 131 while ((pw = getpwent()) != NULL) { 132 (void)setegid(pw->pw_gid); 133 (void)initgroups(pw->pw_name, pw->pw_gid); 134 (void)seteuid(pw->pw_uid); 135 if (!chdir(pw->pw_dir)) 136 cal(); 137 (void)seteuid(0); 138 } 139 else 140 cal(); 141 exit(0); 142 } 143 144 145 void 146 usage() 147 { 148 (void)fprintf(stderr, "%s\n%s\n", 149 "usage: calendar [-a] [-A days] [-B days] [-F friday] " 150 "[-f calendarfile]", 151 " [-t dd[.mm[.year]]] [-W days]"); 152 exit(1); 153 } 154 155 156