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