Stop using 'union wait' for the status of wait*() in a few places.
[dragonfly.git] / games / sail / pl_1.c
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(void)
113 {
114         leave(LEAVE_QUIT);
115 }
116
117 void
118 child(void)
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, (sig_t)child);
130 }