1 /* $NetBSD: pl_1.c,v 1.21 2009/03/14 22:52:52 dholland 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)pl_1.c 8.1 (Berkeley) 5/31/93"; 36 #else 37 __RCSID("$NetBSD: pl_1.c,v 1.21 2009/03/14 22:52:52 dholland Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <sys/types.h> 42 #include <sys/wait.h> 43 #include <signal.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <unistd.h> 47 #include "extern.h" 48 #include "player.h" 49 50 /* 51 * If we get here before a ship is chosen, then ms == 0 and 52 * we don't want to update the score file, or do any Write's either. 53 * We can assume the sync file is already created and may need 54 * to be removed. 55 * Of course, we don't do any more Sync()'s if we got here 56 * because of a Sync() failure. 57 */ 58 void 59 leave(int conditions) 60 { 61 signal(SIGHUP, SIG_IGN); 62 signal(SIGINT, SIG_IGN); 63 signal(SIGQUIT, SIG_IGN); 64 signal(SIGALRM, SIG_IGN); 65 signal(SIGCHLD, SIG_IGN); 66 67 if (done_curses) { 68 Msg("It looks like you've had it!"); 69 switch (conditions) { 70 case LEAVE_QUIT: 71 break; 72 case LEAVE_CAPTURED: 73 Msg("Your ship was captured."); 74 break; 75 case LEAVE_HURRICAN: 76 Msg("Hurricane! All ships destroyed."); 77 break; 78 case LEAVE_DRIVER: 79 Msg("The driver died."); 80 break; 81 case LEAVE_SYNC: 82 Msg("Synchronization error."); 83 break; 84 default: 85 Msg("A funny thing happened (%d).", conditions); 86 } 87 } else { 88 switch (conditions) { 89 case LEAVE_QUIT: 90 break; 91 case LEAVE_DRIVER: 92 printf("The driver died.\n"); 93 break; 94 case LEAVE_FORK: 95 break; 96 case LEAVE_SYNC: 97 printf("Synchronization error\n."); 98 break; 99 default: 100 printf("A funny thing happened (%d).\n", 101 conditions); 102 } 103 } 104 105 if (ms != 0) { 106 logger(ms); 107 if (conditions != LEAVE_SYNC) { 108 makemsg(ms, "Captain %s relinquishing.", 109 mf->captain); 110 send_end(ms); 111 Sync(); 112 } 113 } 114 sync_close(!hasdriver); 115 sleep(5); 116 cleanupscreen(); 117 exit(0); 118 } 119 120 /*ARGSUSED*/ 121 void 122 choke(int n __unused) 123 { 124 leave(LEAVE_QUIT); 125 } 126 127 /*ARGSUSED*/ 128 void 129 child(int n __unused) 130 { 131 int status; 132 int pid; 133 134 signal(SIGCHLD, SIG_IGN); 135 do { 136 pid = wait3(&status, WNOHANG, (struct rusage *)0); 137 if (pid < 0 || (pid > 0 && !WIFSTOPPED(status))) 138 hasdriver = 0; 139 } while (pid > 0); 140 signal(SIGCHLD, child); 141 } 142