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/* $OpenBSD: pl_1.c,v 1.13 2019/06/28 13:32:52 deraadt Exp $ */
/* $NetBSD: pl_1.c,v 1.3 1995/04/22 10:37:07 cgd Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/wait.h>
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include "extern.h"
#include "player.h"
#ifndef __GNUC__
#define __attribute__(x)
#endif
/*
* If we get here before a ship is chosen, then ms == 0 and
* we don't want to update the score file, or do any Write's either.
* We can assume the sync file is already created and may need
* to be removed.
* Of course, we don't do any more Sync()'s if we got here
* because of a Sync() failure.
*/
void
leave(int conditions)
{
(void) signal(SIGHUP, SIG_IGN);
(void) signal(SIGINT, SIG_IGN);
(void) signal(SIGQUIT, SIG_IGN);
(void) signal(SIGALRM, SIG_IGN);
(void) signal(SIGCHLD, SIG_DFL);
if (done_curses) {
Msg("It looks like you've had it!");
switch (conditions) {
case LEAVE_QUIT:
break;
case LEAVE_CAPTURED:
Msg("Your ship was captured.");
break;
case LEAVE_HURRICAN:
Msg("Hurricane! All ships destroyed.");
break;
case LEAVE_DRIVER:
Msg("The driver died.");
break;
case LEAVE_SYNC:
Msg("Synchronization error.");
break;
default:
Msg("A funny thing happened (%d).", conditions);
}
} else {
switch (conditions) {
case LEAVE_QUIT:
break;
case LEAVE_DRIVER:
printf("The driver died.\n");
break;
case LEAVE_FORK:
perror("fork");
break;
case LEAVE_SYNC:
printf("Synchronization error\n.");
break;
default:
printf("A funny thing happened (%d).\n",
conditions);
}
}
if (ms != 0) {
logger(ms);
if (conditions != LEAVE_SYNC) {
makemsg(ms, "Captain %s relinquishing.",
mf->captain);
Write(W_END, ms, 0, 0, 0, 0);
(void) Sync();
}
}
sync_close(!hasdriver);
sleep(5);
cleanupscreen();
exit(0);
}
void
choke(int n __attribute__((unused)))
{
leave(LEAVE_QUIT);
}
void
child(int n __attribute__((unused)))
{
int status;
int pid;
int save_errno = errno;
(void) signal(SIGCHLD, SIG_DFL);
do {
pid = waitpid((pid_t)-1, &status, WNOHANG);
if (pid == -1 || (pid > 0 && !WIFSTOPPED(status)))
hasdriver = 0;
} while (pid > 0);
(void) signal(SIGCHLD, child);
errno = save_errno;
}
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