1 /*- 2 * Copyright (c) 1983, 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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)pl_1.c 8.1 (Berkeley) 5/31/93 30 * $FreeBSD: src/games/sail/pl_1.c,v 1.2 1999/11/30 03:49:36 billf Exp $ 31 */ 32 33 #include <sys/types.h> 34 #include <sys/wait.h> 35 #include "player.h" 36 37 /* 38 * If we get here before a ship is chosen, then ms == 0 and 39 * we don't want to update the score file, or do any Write's either. 40 * We can assume the sync file is already created and may need 41 * to be removed. 42 * Of course, we don't do any more Sync()'s if we got here 43 * because of a Sync() failure. 44 */ 45 void 46 leave(int conditions) 47 { 48 signal(SIGHUP, SIG_IGN); 49 signal(SIGINT, SIG_IGN); 50 signal(SIGQUIT, SIG_IGN); 51 signal(SIGALRM, SIG_IGN); 52 signal(SIGCHLD, SIG_IGN); 53 54 if (done_curses) { 55 Signal("It looks like you've had it!", 56 NULL); 57 switch (conditions) { 58 case LEAVE_QUIT: 59 break; 60 case LEAVE_CAPTURED: 61 Signal("Your ship was captured.", 62 NULL); 63 break; 64 case LEAVE_HURRICAN: 65 Signal("Hurricane! All ships destroyed.", 66 NULL); 67 break; 68 case LEAVE_DRIVER: 69 Signal("The driver died.", NULL); 70 break; 71 case LEAVE_SYNC: 72 Signal("Synchronization error.", NULL); 73 break; 74 default: 75 Signal("A funny thing happened (%d).", 76 NULL, conditions); 77 } 78 } else { 79 switch (conditions) { 80 case LEAVE_QUIT: 81 break; 82 case LEAVE_DRIVER: 83 printf("The driver died.\n"); 84 break; 85 case LEAVE_FORK: 86 perror("fork"); 87 break; 88 case LEAVE_SYNC: 89 printf("Synchronization error\n."); 90 break; 91 default: 92 printf("A funny thing happened (%d).\n", 93 conditions); 94 } 95 } 96 97 if (ms != 0) { 98 write_log(ms); 99 if (conditions != LEAVE_SYNC) { 100 makesignal(ms, "Captain %s relinquishing.", 101 NULL, mf->captain); 102 Write(W_END, ms, 0, 0, 0, 0); 103 Sync(); 104 } 105 } 106 sync_close(!hasdriver); 107 cleanupscreen(); 108 exit(0); 109 } 110 111 void 112 choke(__unused int sig) 113 { 114 leave(LEAVE_QUIT); 115 } 116 117 void 118 child(__unused int sig) 119 { 120 pid_t pid; 121 int status; 122 123 signal(SIGCHLD, SIG_IGN); 124 do { 125 pid = wait3(&status, WNOHANG, NULL); 126 if (pid < 0 || (pid > 0 && !WIFSTOPPED(status))) 127 hasdriver = 0; 128 } while (pid > 0); 129 signal(SIGCHLD, child); 130 } 131