1 /* 2 * Copyright (c) 1980, 1988, 1993 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) 1980, 1988, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)leave.c 8.1 (Berkeley) 6/6/93"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <err.h> 49 #include <ctype.h> 50 #include <locale.h> 51 #include <stdio.h> 52 #include <time.h> 53 #include <unistd.h> 54 55 void doalarm __P((u_int)); 56 static void usage __P((void)); 57 58 /* 59 * leave [[+]hhmm] 60 * 61 * Reminds you when you have to leave. 62 * Leave prompts for input and goes away if you hit return. 63 * It nags you like a mother hen. 64 */ 65 int 66 main(argc, argv) 67 int argc; 68 char **argv; 69 { 70 register u_int secs; 71 register int hours, minutes; 72 register char c, *cp; 73 struct tm *t, *localtime(); 74 time_t now, time(); 75 int plusnow, t_12_hour; 76 char buf[50]; 77 78 if (setlocale(LC_TIME, "") == NULL) 79 warn("setlocale"); 80 81 if (argc < 2) { 82 #define MSG1 "When do you have to leave? " 83 (void)write(1, MSG1, sizeof(MSG1) - 1); 84 cp = fgets(buf, sizeof(buf), stdin); 85 if (cp == NULL || *cp == '\n') 86 exit(0); 87 } else 88 cp = argv[1]; 89 90 if (*cp == '+') { 91 plusnow = 1; 92 ++cp; 93 } else 94 plusnow = 0; 95 96 for (hours = 0; (c = *cp) && c != '\n'; ++cp) { 97 if (!isdigit(c)) 98 usage(); 99 hours = hours * 10 + (c - '0'); 100 } 101 minutes = hours % 100; 102 hours /= 100; 103 104 if (minutes < 0 || minutes > 59) 105 usage(); 106 if (plusnow) 107 secs = hours * 60 * 60 + minutes * 60; 108 else { 109 (void)time(&now); 110 t = localtime(&now); 111 112 if (hours > 23) 113 usage(); 114 115 /* Convert tol to 12 hr time (0:00...11:59) */ 116 if (hours > 11) 117 hours -= 12; 118 119 /* Convert tm to 12 hr time (0:00...11:59) */ 120 if (t->tm_hour > 11) 121 t_12_hour = t->tm_hour - 12; 122 else 123 t_12_hour = t->tm_hour; 124 125 if (hours < t_12_hour || 126 (hours == t_12_hour && minutes <= t->tm_min)) 127 /* Leave time is in the past so we add 12 hrs */ 128 hours += 12; 129 130 secs = (hours - t_12_hour) * 60 * 60; 131 secs += (minutes - t->tm_min) * 60; 132 secs -= now % 60; /* truncate (now + secs) to min */ 133 } 134 doalarm(secs); 135 exit(0); 136 } 137 138 void 139 doalarm(secs) 140 u_int secs; 141 { 142 register int bother; 143 time_t daytime, time(); 144 char tb[80]; 145 int pid; 146 147 if ((pid = fork())) { 148 (void)time(&daytime); 149 daytime += secs; 150 strftime(tb, sizeof(tb), "%+", localtime(&daytime)); 151 printf("Alarm set for %s. (pid %d)\n", tb, pid); 152 exit(0); 153 } 154 sleep((u_int)2); /* let parent print set message */ 155 if (secs >= 2) 156 secs -= 2; 157 158 /* 159 * if write fails, we've lost the terminal through someone else 160 * causing a vhangup by logging in. 161 */ 162 #define FIVEMIN (5 * 60) 163 #define MSG2 "\07\07You have to leave in 5 minutes.\n" 164 if (secs >= FIVEMIN) { 165 sleep(secs - FIVEMIN); 166 if (write(1, MSG2, sizeof(MSG2) - 1) != sizeof(MSG2) - 1) 167 exit(0); 168 secs = FIVEMIN; 169 } 170 171 #define ONEMIN (60) 172 #define MSG3 "\07\07Just one more minute!\n" 173 if (secs >= ONEMIN) { 174 sleep(secs - ONEMIN); 175 if (write(1, MSG3, sizeof(MSG3) - 1) != sizeof(MSG3) - 1) 176 exit(0); 177 } 178 179 #define MSG4 "\07\07Time to leave!\n" 180 for (bother = 10; bother--;) { 181 sleep((u_int)ONEMIN); 182 if (write(1, MSG4, sizeof(MSG4) - 1) != sizeof(MSG4) - 1) 183 exit(0); 184 } 185 186 #define MSG5 "\07\07That was the last time I'll tell you. Bye.\n" 187 (void)write(1, MSG5, sizeof(MSG5) - 1); 188 exit(0); 189 } 190 191 static void 192 usage() 193 { 194 fprintf(stderr, "usage: leave [[+]hhmm]\n"); 195 exit(1); 196 } 197