/*	$OpenBSD: init.c,v 1.18 2022/08/08 17:57:05 op Exp $	*/
/*	$NetBSD: init.c,v 1.4 1995/03/21 15:07:35 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 <err.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "extern.h"

static const char *getutmp(void);

void
initialize(const char *filename)
{
	const struct objs *p;
	char *savefile;

	puts("Version 4.2, fall 1984.");
	puts("First Adventure game written by His Lordship, the honorable");
	puts("Admiral D.W. Riggle\n");
	location = dayfile;
	username = getutmp();
	if (username == NULL)
		errx(1, "Don't know who you are.");
	wordinit();
	if (filename == NULL) {
		direction = NORTH;
		ourtime = 0;
		snooze = CYCLE * 1.5;
		position = 22;
		SetBit(wear, PAJAMAS);
		fuel = TANKFULL;
		torps = TORPEDOES;
		for (p = dayobjs; p->room != 0; p++)
			SetBit(location[p->room].objects, p->obj);
	} else {
		savefile = save_file_name(filename);
		restore(savefile);
		free(savefile);
	}
	signal(SIGINT, die);
}

static const char *
getutmp(void)
{
	const char	*name;

	name = getenv("LOGNAME");
	if (name == NULL || *name == 0)
		name = getenv("USER");
	if (name == NULL || *name == 0)
		name = getlogin();
	if (name == NULL || *name == 0)
		name = " ??? ";

	return(strdup(name));
}