Files @ r25553:92872b4fd6f6
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Location: cpp/openttd-patchpack/source/src/dedicated.cpp

Patric Stout
Fix #9281: acquire a company uses special bookkeeping to make you rich (#9300)

When you buy-out a company, you got your shares back. This is
based on company-value, which includes values for the vehicles etc.
In other words, you not only got the vehicles, but you also got
paid to get them back.

Additionally, you also got the loan of the company, but not the
money for the loan (as that is subtracted from the company-value).

Solve this by changing the rules of a buy-out: don't sell your
shares, get the loan AND the balance and get the infrastructure.
/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file dedicated.cpp Forking support for dedicated servers. */

#include "stdafx.h"
#include "fileio_func.h"
#include <string>

std::string _log_file; ///< File to reroute output of a forked OpenTTD to
std::unique_ptr<FILE, FileDeleter> _log_fd; ///< File to reroute output of a forked OpenTTD to

#if defined(UNIX)

#include <unistd.h>

#include "safeguards.h"

#if defined(SUNOS) && !defined(_LP64) && !defined(_I32LPx)
/* Solaris has, in certain situation, pid_t defined as long, while in other
 *  cases it has it defined as int... this handles all cases nicely.
 */
# define PRINTF_PID_T "%ld"
#else
# define PRINTF_PID_T "%d"
#endif

void DedicatedFork()
{
	/* Fork the program */
	pid_t pid = fork();
	switch (pid) {
		case -1:
			perror("Unable to fork");
			exit(1);

		case 0: { // We're the child
			/* Open the log-file to log all stuff too */
			_log_fd.reset(fopen(_log_file.c_str(), "a"));
			if (!_log_fd) {
				perror("Unable to open logfile");
				exit(1);
			}
			/* Redirect stdout and stderr to log-file */
			if (dup2(fileno(_log_fd.get()), fileno(stdout)) == -1) {
				perror("Rerouting stdout");
				exit(1);
			}
			if (dup2(fileno(_log_fd.get()), fileno(stderr)) == -1) {
				perror("Rerouting stderr");
				exit(1);
			}
			break;
		}

		default:
			/* We're the parent */
			printf("Loading dedicated server...\n");
			printf("  - Forked to background with pid " PRINTF_PID_T "\n", pid);
			exit(0);
	}
}
#endif