1 /* $NetBSD: pl_1.c,v 1.16 2001/02/05 01:10:10 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)pl_1.c 8.1 (Berkeley) 5/31/93"; 40 #else 41 __RCSID("$NetBSD: pl_1.c,v 1.16 2001/02/05 01:10:10 christos Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/types.h> 46 #include <sys/wait.h> 47 #include <signal.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <unistd.h> 51 #include "extern.h" 52 #include "player.h" 53 54 /* 55 * If we get here before a ship is chosen, then ms == 0 and 56 * we don't want to update the score file, or do any Write's either. 57 * We can assume the sync file is already created and may need 58 * to be removed. 59 * Of course, we don't do any more Sync()'s if we got here 60 * because of a Sync() failure. 61 */ 62 void 63 leave(int conditions) 64 { 65 signal(SIGHUP, SIG_IGN); 66 signal(SIGINT, SIG_IGN); 67 signal(SIGQUIT, SIG_IGN); 68 signal(SIGALRM, SIG_IGN); 69 signal(SIGCHLD, SIG_IGN); 70 71 if (done_curses) { 72 Msg("It looks like you've had it!"); 73 switch (conditions) { 74 case LEAVE_QUIT: 75 break; 76 case LEAVE_CAPTURED: 77 Msg("Your ship was captured."); 78 break; 79 case LEAVE_HURRICAN: 80 Msg("Hurricane! All ships destroyed."); 81 break; 82 case LEAVE_DRIVER: 83 Msg("The driver died."); 84 break; 85 case LEAVE_SYNC: 86 Msg("Synchronization error."); 87 break; 88 default: 89 Msg("A funny thing happened (%d).", conditions); 90 } 91 } else { 92 switch (conditions) { 93 case LEAVE_QUIT: 94 break; 95 case LEAVE_DRIVER: 96 printf("The driver died.\n"); 97 break; 98 case LEAVE_FORK: 99 perror("fork"); 100 break; 101 case LEAVE_SYNC: 102 printf("Synchronization error\n."); 103 break; 104 default: 105 printf("A funny thing happened (%d).\n", 106 conditions); 107 } 108 } 109 110 if (ms != 0) { 111 logger(ms); 112 if (conditions != LEAVE_SYNC) { 113 makemsg(ms, "Captain %s relinquishing.", 114 mf->captain); 115 Write(W_END, ms, 0, 0, 0, 0); 116 Sync(); 117 } 118 } 119 sync_close(!hasdriver); 120 sleep(5); 121 cleanupscreen(); 122 exit(0); 123 } 124 125 /*ARGSUSED*/ 126 void 127 choke(int n __attribute__((__unused__))) 128 { 129 leave(LEAVE_QUIT); 130 } 131 132 /*ARGSUSED*/ 133 void 134 child(int n __attribute__((__unused__))) 135 { 136 union wait status; 137 int pid; 138 139 signal(SIGCHLD, SIG_IGN); 140 do { 141 pid = wait3((int *)&status, WNOHANG, (struct rusage *)0); 142 if (pid < 0 || (pid > 0 && !WIFSTOPPED(status))) 143 hasdriver = 0; 144 } while (pid > 0); 145 signal(SIGCHLD, child); 146 } 147