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 * $FreeBSD$ 34 */ 35 36 #ifndef lint 37 static const char copyright[] = 38 "@(#) Copyright (c) 1989, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 static const char sccsid[] = "@(#)calendar.c 8.3 (Berkeley) 3/25/94"; 44 #endif /* not lint */ 45 46 #include <err.h> 47 #include <errno.h> 48 #include <locale.h> 49 #include <pwd.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <time.h> 53 #include <unistd.h> 54 55 #include "pathnames.h" 56 #include "calendar.h" 57 58 struct passwd *pw; 59 int doall = 0; 60 time_t f_time = 0; 61 62 int f_dayAfter = 0; /* days after current date */ 63 int f_dayBefore = 0; /* days before current date */ 64 65 int 66 main(argc, argv) 67 int argc; 68 char *argv[]; 69 { 70 int ch; 71 72 (void) setlocale(LC_ALL, ""); 73 74 while ((ch = getopt(argc, argv, "-af:t:A:B:")) != -1) 75 switch (ch) { 76 case '-': /* backward contemptible */ 77 case 'a': 78 if (getuid()) { 79 errno = EPERM; 80 err(1, NULL); 81 } 82 doall = 1; 83 break; 84 85 86 case 'f': /* other calendar file */ 87 calendarFile = optarg; 88 break; 89 90 case 't': /* other date, undocumented, for tests */ 91 f_time = Mktime (optarg); 92 break; 93 94 case 'A': /* days after current date */ 95 f_dayAfter = atoi(optarg); 96 break; 97 98 case 'B': /* days before current date */ 99 f_dayBefore = atoi(optarg); 100 break; 101 102 case '?': 103 default: 104 usage(); 105 } 106 argc -= optind; 107 argv += optind; 108 109 if (argc) 110 usage(); 111 112 /* use current time */ 113 if (f_time <= 0) 114 (void)time(&f_time); 115 116 settime(f_time); 117 118 if (doall) 119 while ((pw = getpwent()) != NULL) { 120 (void)setegid(pw->pw_gid); 121 (void)initgroups(pw->pw_name, pw->pw_gid); 122 (void)seteuid(pw->pw_uid); 123 if (!chdir(pw->pw_dir)) 124 cal(); 125 (void)seteuid(0); 126 } 127 else 128 cal(); 129 exit(0); 130 } 131 132 133 void 134 usage() 135 { 136 (void)fprintf(stderr, 137 "usage: calendar [-a] [-A days] [-B days] [-f calendarfile] [-t dd[.mm[.year]]]\n"); 138 exit(1); 139 } 140 141 142