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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
3 | * 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. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef lint | |
35 | static char sccsid[] = "@(#)pl_1.c 5.5 (Berkeley) 2/28/91"; | |
36 | #endif /* not lint */ | |
37 | ||
38 | #include "player.h" | |
39 | #include <sys/types.h> | |
40 | #include <sys/wait.h> | |
41 | ||
42 | /* | |
43 | * If we get here before a ship is chosen, then ms == 0 and | |
44 | * we don't want to update the score file, or do any Write's either. | |
45 | * We can assume the sync file is already created and may need | |
46 | * to be removed. | |
47 | * Of course, we don't do any more Sync()'s if we got here | |
48 | * because of a Sync() failure. | |
49 | */ | |
50 | leave(conditions) | |
51 | int conditions; | |
52 | { | |
53 | (void) signal(SIGHUP, SIG_IGN); | |
54 | (void) signal(SIGINT, SIG_IGN); | |
55 | (void) signal(SIGQUIT, SIG_IGN); | |
56 | (void) signal(SIGALRM, SIG_IGN); | |
57 | (void) signal(SIGCHLD, SIG_IGN); | |
58 | ||
59 | if (done_curses) { | |
60 | Signal("It looks like you've had it!", | |
61 | (struct ship *)0); | |
62 | switch (conditions) { | |
63 | case LEAVE_QUIT: | |
64 | break; | |
65 | case LEAVE_CAPTURED: | |
66 | Signal("Your ship was captured.", | |
67 | (struct ship *)0); | |
68 | break; | |
69 | case LEAVE_HURRICAN: | |
70 | Signal("Hurricane! All ships destroyed.", | |
71 | (struct ship *)0); | |
72 | break; | |
73 | case LEAVE_DRIVER: | |
74 | Signal("The driver died.", (struct ship *)0); | |
75 | break; | |
76 | case LEAVE_SYNC: | |
77 | Signal("Synchronization error.", (struct ship *)0); | |
78 | break; | |
79 | default: | |
80 | Signal("A funny thing happened (%d).", | |
81 | (struct ship *)0, conditions); | |
82 | } | |
83 | } else { | |
84 | switch (conditions) { | |
85 | case LEAVE_QUIT: | |
86 | break; | |
87 | case LEAVE_DRIVER: | |
88 | printf("The driver died.\n"); | |
89 | break; | |
90 | case LEAVE_FORK: | |
91 | perror("fork"); | |
92 | break; | |
93 | case LEAVE_SYNC: | |
94 | printf("Synchronization error\n."); | |
95 | break; | |
96 | default: | |
97 | printf("A funny thing happened (%d).\n", | |
98 | conditions); | |
99 | } | |
100 | } | |
101 | ||
102 | if (ms != 0) { | |
103 | log(ms); | |
104 | if (conditions != LEAVE_SYNC) { | |
105 | makesignal(ms, "Captain %s relinquishing.", | |
106 | (struct ship *)0, mf->captain); | |
107 | Write(W_END, ms, 0, 0, 0, 0, 0); | |
108 | (void) Sync(); | |
109 | } | |
110 | } | |
111 | sync_close(!hasdriver); | |
112 | cleanupscreen(); | |
113 | exit(0); | |
114 | } | |
115 | ||
116 | void | |
117 | choke() | |
118 | { | |
119 | leave(LEAVE_QUIT); | |
120 | } | |
121 | ||
122 | void | |
123 | child() | |
124 | { | |
125 | union wait status; | |
126 | int pid; | |
127 | ||
128 | (void) signal(SIGCHLD, SIG_IGN); | |
129 | do { | |
130 | pid = wait3((int *)&status, WNOHANG, (struct rusage *)0); | |
131 | if (pid < 0 || pid > 0 && !WIFSTOPPED(status)) | |
132 | hasdriver = 0; | |
133 | } while (pid > 0); | |
134 | (void) signal(SIGCHLD, child); | |
135 | } |