sail/pl_1.c

   1 /*      $NetBSD: pl_1.c,v 1.7 1999/09/08 21:45:30 jsm 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 1.7 1999/09/08 21:45:30 jsm Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include "player.h"
  46 #include <sys/types.h>
  47 #include <sys/wait.h>
  48 #include <unistd.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(conditions)
  60 int conditions;
  61 {
  62         (void) signal(SIGHUP, SIG_IGN);
  63         (void) signal(SIGINT, SIG_IGN);
  64         (void) signal(SIGQUIT, SIG_IGN);
  65         (void) signal(SIGALRM, SIG_IGN);
  66         (void) signal(SIGCHLD, SIG_IGN);
  67
  68         if (done_curses) {
  69                 Msg("It looks like you've had it!");
  70                 switch (conditions) {
  71                 case LEAVE_QUIT:
  72                         break;
  73                 case LEAVE_CAPTURED:
  74                         Msg("Your ship was captured.");
  75                         break;
  76                 case LEAVE_HURRICAN:
  77                         Msg("Hurricane!  All ships destroyed.");
  78                         break;
  79                 case LEAVE_DRIVER:
  80                         Msg("The driver died.");
  81                         break;
  82                 case LEAVE_SYNC:
  83                         Msg("Synchronization error.");
  84                         break;
  85                 default:
  86                         Msg("A funny thing happened (%d).", conditions);
  87                 }
  88         } else {
  89                 switch (conditions) {
  90                 case LEAVE_QUIT:
  91                         break;
  92                 case LEAVE_DRIVER:
  93                         printf("The driver died.\n");
  94                         break;
  95                 case LEAVE_FORK:
  96                         perror("fork");
  97                         break;
  98                 case LEAVE_SYNC:
  99                         printf("Synchronization error\n.");
 100                         break;
 101                 default:
 102                         printf("A funny thing happened (%d).\n",
 103                                 conditions);
 104                 }
 105         }
 106
 107         if (ms != 0) {
 108                 logger(ms);
 109                 if (conditions != LEAVE_SYNC) {
 110                         makemsg(ms, "Captain %s relinquishing.",
 111                                 mf->captain);
 112                         Write(W_END, ms, 0, 0, 0, 0);
 113                         (void) Sync();
 114                 }
 115         }
 116         sync_close(!hasdriver);
 117         sleep(5);
 118         cleanupscreen();
 119         exit(0);
 120 }
 121
 122 /*ARGSUSED*/
 123 void
 124 choke(n)
 125         int n __attribute__((__unused__));
 126 {
 127         leave(LEAVE_QUIT);
 128 }
 129
 130 /*ARGSUSED*/
 131 void
 132 child(n)
 133         int n __attribute__((__unused__));
 134 {
 135         union wait status;
 136         int pid;
 137
 138         (void) signal(SIGCHLD, SIG_IGN);
 139         do {
 140                 pid = wait3((int *)&status, WNOHANG, (struct rusage *)0);
 141                 if (pid < 0 || (pid > 0 && !WIFSTOPPED(status)))
 142                         hasdriver = 0;
 143         } while (pid > 0);
 144         (void) signal(SIGCHLD, child);
 145 }