1 /* $OpenBSD: pl_1.c,v 1.10 2011/11/06 01:43:50 guenther Exp $ */ 2 /* $NetBSD: pl_1.c,v 1.3 1995/04/22 10:37:07 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include "player.h" 34 #include <sys/types.h> 35 #include <errno.h> 36 #include <sys/wait.h> 37 #include <stdlib.h> 38 #include <unistd.h> 39 40 #ifndef __GNUC__ 41 #define __attribute__(x) 42 #endif 43 44 /* 45 * If we get here before a ship is chosen, then ms == 0 and 46 * we don't want to update the score file, or do any Write's either. 47 * We can assume the sync file is already created and may need 48 * to be removed. 49 * Of course, we don't do any more Sync()'s if we got here 50 * because of a Sync() failure. 51 */ 52 void 53 leave(conditions) 54 int conditions; 55 { 56 (void) signal(SIGHUP, SIG_IGN); 57 (void) signal(SIGINT, SIG_IGN); 58 (void) signal(SIGQUIT, SIG_IGN); 59 (void) signal(SIGALRM, SIG_IGN); 60 (void) signal(SIGCHLD, SIG_DFL); 61 62 if (done_curses) { 63 Msg("It looks like you've had it!"); 64 switch (conditions) { 65 case LEAVE_QUIT: 66 break; 67 case LEAVE_CAPTURED: 68 Msg("Your ship was captured."); 69 break; 70 case LEAVE_HURRICAN: 71 Msg("Hurricane! All ships destroyed."); 72 break; 73 case LEAVE_DRIVER: 74 Msg("The driver died."); 75 break; 76 case LEAVE_SYNC: 77 Msg("Synchronization error."); 78 break; 79 default: 80 Msg("A funny thing happened (%d).", conditions); 81 } 82 } else { 83 switch (conditions) { 84 case LEAVE_QUIT: 85 break; 86 case LEAVE_DRIVER: 87 printf("The driver died.\n"); 88 break; 89 case LEAVE_FORK: 90 perror("fork"); 91 break; 92 case LEAVE_SYNC: 93 printf("Synchronization error\n."); 94 break; 95 default: 96 printf("A funny thing happened (%d).\n", 97 conditions); 98 } 99 } 100 101 if (ms != 0) { 102 logger(ms); 103 if (conditions != LEAVE_SYNC) { 104 makemsg(ms, "Captain %s relinquishing.", 105 mf->captain); 106 Write(W_END, ms, 0, 0, 0, 0); 107 (void) Sync(); 108 } 109 } 110 sync_close(!hasdriver); 111 sleep(5); 112 cleanupscreen(); 113 exit(0); 114 } 115 116 void 117 choke(n) 118 int n __attribute__((unused)); 119 { 120 leave(LEAVE_QUIT); 121 } 122 123 void 124 child(n) 125 int n __attribute__((unused)); 126 { 127 int status; 128 int pid; 129 int save_errno = errno; 130 131 (void) signal(SIGCHLD, SIG_DFL); 132 do { 133 pid = waitpid((pid_t)-1, &status, WNOHANG); 134 if (pid < 0 || (pid > 0 && !WIFSTOPPED(status))) 135 hasdriver = 0; 136 } while (pid > 0); 137 (void) signal(SIGCHLD, child); 138 errno = save_errno; 139 } 140