11590Srgrimes/* 21590Srgrimes * Copyright (c) 1980, 1988, 1993 31590Srgrimes * The Regents of the University of California. All rights reserved. 41590Srgrimes * 51590Srgrimes * Redistribution and use in source and binary forms, with or without 61590Srgrimes * modification, are permitted provided that the following conditions 71590Srgrimes * are met: 81590Srgrimes * 1. Redistributions of source code must retain the above copyright 91590Srgrimes * notice, this list of conditions and the following disclaimer. 101590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111590Srgrimes * notice, this list of conditions and the following disclaimer in the 121590Srgrimes * documentation and/or other materials provided with the distribution. 131590Srgrimes * 4. Neither the name of the University nor the names of its contributors 141590Srgrimes * may be used to endorse or promote products derived from this software 151590Srgrimes * without specific prior written permission. 161590Srgrimes * 171590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271590Srgrimes * SUCH DAMAGE. 281590Srgrimes */ 291590Srgrimes 301590Srgrimes#ifndef lint 3127572Scharnierstatic const char copyright[] = 321590Srgrimes"@(#) Copyright (c) 1980, 1988, 1993\n\ 331590Srgrimes The Regents of the University of California. All rights reserved.\n"; 341590Srgrimes#endif /* not lint */ 351590Srgrimes 361590Srgrimes#ifndef lint 3727572Scharnier#if 0 381590Srgrimesstatic char sccsid[] = "@(#)leave.c 8.1 (Berkeley) 6/6/93"; 3927572Scharnier#endif 401590Srgrimes#endif /* not lint */ 4199112Sobrien#include <sys/cdefs.h> 4299112Sobrien__FBSDID("$FreeBSD$"); 431590Srgrimes 4432295Shelbig#include <err.h> 4527572Scharnier#include <ctype.h> 4632295Shelbig#include <locale.h> 471590Srgrimes#include <stdio.h> 4878717Sdd#include <stdlib.h> 4932295Shelbig#include <time.h> 5027572Scharnier#include <unistd.h> 511590Srgrimes 52198847Sdelphijstatic void doalarm(u_int); 5392920Simpstatic void usage(void); 5427572Scharnier 551590Srgrimes/* 561590Srgrimes * leave [[+]hhmm] 571590Srgrimes * 581590Srgrimes * Reminds you when you have to leave. 591590Srgrimes * Leave prompts for input and goes away if you hit return. 601590Srgrimes * It nags you like a mother hen. 611590Srgrimes */ 6227572Scharnierint 63102944Sdwmalonemain(int argc, char **argv) 641590Srgrimes{ 65102944Sdwmalone u_int secs; 66102944Sdwmalone int hours, minutes; 67102944Sdwmalone char c, *cp = NULL; 6877451Sdd struct tm *t; 6977451Sdd time_t now; 7032295Shelbig int plusnow, t_12_hour; 711590Srgrimes char buf[50]; 721590Srgrimes 7332295Shelbig if (setlocale(LC_TIME, "") == NULL) 7432295Shelbig warn("setlocale"); 7532295Shelbig 761590Srgrimes if (argc < 2) { 771590Srgrimes#define MSG1 "When do you have to leave? " 7880381Ssheldonh (void)write(STDOUT_FILENO, MSG1, sizeof(MSG1) - 1); 791590Srgrimes cp = fgets(buf, sizeof(buf), stdin); 8027572Scharnier if (cp == NULL || *cp == '\n') 811590Srgrimes exit(0); 8275906Skris } else if (argc > 2) 8375906Skris usage(); 8475906Skris else 851590Srgrimes cp = argv[1]; 861590Srgrimes 871590Srgrimes if (*cp == '+') { 881590Srgrimes plusnow = 1; 891590Srgrimes ++cp; 9032295Shelbig } else 911590Srgrimes plusnow = 0; 921590Srgrimes 931590Srgrimes for (hours = 0; (c = *cp) && c != '\n'; ++cp) { 941590Srgrimes if (!isdigit(c)) 951590Srgrimes usage(); 961590Srgrimes hours = hours * 10 + (c - '0'); 971590Srgrimes } 981590Srgrimes minutes = hours % 100; 991590Srgrimes hours /= 100; 1001590Srgrimes 1011590Srgrimes if (minutes < 0 || minutes > 59) 1021590Srgrimes usage(); 1031590Srgrimes if (plusnow) 1041590Srgrimes secs = hours * 60 * 60 + minutes * 60; 1051590Srgrimes else { 10632295Shelbig (void)time(&now); 10732295Shelbig t = localtime(&now); 10832295Shelbig 10932295Shelbig if (hours > 23) 1101590Srgrimes usage(); 11132295Shelbig 11232295Shelbig /* Convert tol to 12 hr time (0:00...11:59) */ 11332295Shelbig if (hours > 11) 11432295Shelbig hours -= 12; 11532295Shelbig 11632295Shelbig /* Convert tm to 12 hr time (0:00...11:59) */ 11732295Shelbig if (t->tm_hour > 11) 11832295Shelbig t_12_hour = t->tm_hour - 12; 11932295Shelbig else 12032295Shelbig t_12_hour = t->tm_hour; 12132295Shelbig 12232295Shelbig if (hours < t_12_hour || 12332295Shelbig (hours == t_12_hour && minutes <= t->tm_min)) 12432295Shelbig /* Leave time is in the past so we add 12 hrs */ 12532295Shelbig hours += 12; 12632295Shelbig 12732295Shelbig secs = (hours - t_12_hour) * 60 * 60; 1281590Srgrimes secs += (minutes - t->tm_min) * 60; 12932295Shelbig secs -= now % 60; /* truncate (now + secs) to min */ 1301590Srgrimes } 1311590Srgrimes doalarm(secs); 1321590Srgrimes exit(0); 1331590Srgrimes} 1341590Srgrimes 13527572Scharniervoid 136102944Sdwmalonedoalarm(u_int secs) 1371590Srgrimes{ 138102944Sdwmalone int bother; 13977451Sdd time_t daytime; 14032295Shelbig char tb[80]; 1411590Srgrimes int pid; 1421590Srgrimes 14327572Scharnier if ((pid = fork())) { 1441590Srgrimes (void)time(&daytime); 1451590Srgrimes daytime += secs; 14632295Shelbig strftime(tb, sizeof(tb), "%+", localtime(&daytime)); 14732295Shelbig printf("Alarm set for %s. (pid %d)\n", tb, pid); 1481590Srgrimes exit(0); 1491590Srgrimes } 1501590Srgrimes sleep((u_int)2); /* let parent print set message */ 15135182Ssteve if (secs >= 2) 15235182Ssteve secs -= 2; 1531590Srgrimes 1541590Srgrimes /* 1551590Srgrimes * if write fails, we've lost the terminal through someone else 1561590Srgrimes * causing a vhangup by logging in. 1571590Srgrimes */ 1581590Srgrimes#define FIVEMIN (5 * 60) 1591590Srgrimes#define MSG2 "\07\07You have to leave in 5 minutes.\n" 1601590Srgrimes if (secs >= FIVEMIN) { 1611590Srgrimes sleep(secs - FIVEMIN); 16280381Ssheldonh if (write(STDOUT_FILENO, MSG2, sizeof(MSG2) - 1) != sizeof(MSG2) - 1) 1631590Srgrimes exit(0); 1641590Srgrimes secs = FIVEMIN; 1651590Srgrimes } 1661590Srgrimes 1671590Srgrimes#define ONEMIN (60) 1681590Srgrimes#define MSG3 "\07\07Just one more minute!\n" 1691590Srgrimes if (secs >= ONEMIN) { 1701590Srgrimes sleep(secs - ONEMIN); 17180381Ssheldonh if (write(STDOUT_FILENO, MSG3, sizeof(MSG3) - 1) != sizeof(MSG3) - 1) 1721590Srgrimes exit(0); 1731590Srgrimes } 1741590Srgrimes 1751590Srgrimes#define MSG4 "\07\07Time to leave!\n" 1761590Srgrimes for (bother = 10; bother--;) { 1771590Srgrimes sleep((u_int)ONEMIN); 17880381Ssheldonh if (write(STDOUT_FILENO, MSG4, sizeof(MSG4) - 1) != sizeof(MSG4) - 1) 1791590Srgrimes exit(0); 1801590Srgrimes } 1811590Srgrimes 1821590Srgrimes#define MSG5 "\07\07That was the last time I'll tell you. Bye.\n" 18380381Ssheldonh (void)write(STDOUT_FILENO, MSG5, sizeof(MSG5) - 1); 1841590Srgrimes exit(0); 1851590Srgrimes} 1861590Srgrimes 18727572Scharnierstatic void 188102944Sdwmaloneusage(void) 1891590Srgrimes{ 1901590Srgrimes fprintf(stderr, "usage: leave [[+]hhmm]\n"); 1911590Srgrimes exit(1); 1921590Srgrimes} 193