xref: /openbsd/games/battlestar/init.c (revision 73471bf0)
1 /*	$OpenBSD: init.c,v 1.17 2019/05/09 20:19:23 tedu Exp $	*/
2 /*	$NetBSD: init.c,v 1.4 1995/03/21 15:07:35 cgd Exp $	*/
3 
4 /*
5  * Copyright (c) 1983, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #include <err.h>
34 #include <signal.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <unistd.h>
39 
40 #include "extern.h"
41 
42 static const char *getutmp(void);
43 
44 void
45 initialize(const char *filename)
46 {
47 	const struct objs *p;
48 	char *savefile;
49 
50 	puts("Version 4.2, fall 1984.");
51 	puts("First Adventure game written by His Lordship, the honorable");
52 	puts("Admiral D.W. Riggle\n");
53 	location = dayfile;
54 	username = getutmp();
55 	if (username == NULL)
56 		errx(1, "Don't know who you are.");
57 	wordinit();
58 	if (filename == NULL) {
59 		direction = NORTH;
60 		ourtime = 0;
61 		snooze = CYCLE * 1.5;
62 		position = 22;
63 		SetBit(wear, PAJAMAS);
64 		fuel = TANKFULL;
65 		torps = TORPEDOES;
66 		for (p = dayobjs; p->room != 0; p++)
67 			SetBit(location[p->room].objects, p->obj);
68 	} else {
69 		savefile = save_file_name(filename, strlen(filename));
70 		restore(savefile);
71 		free(savefile);
72 	}
73 	signal(SIGINT, die);
74 }
75 
76 static const char *
77 getutmp(void)
78 {
79 	const char	*name;
80 
81 	name = getenv("LOGNAME");
82 	if (name == NULL || *name == 0)
83 		name = getenv("USER");
84 	if (name == NULL || *name == 0)
85 		name = getlogin();
86 	if (name == NULL || *name == 0)
87 		name = " ??? ";
88 
89 	return(strdup(name));
90 }
91