214 lines
7.3 KiB
C
214 lines
7.3 KiB
C
/* $NetBSD: main.c,v 1.23 2011/08/29 20:30:37 joerg Exp $ */
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/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 5/31/93";
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#else
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__RCSID("$NetBSD: main.c,v 1.23 2011/08/29 20:30:37 joerg Exp $");
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#endif
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#endif /* not lint */
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#include <stdio.h>
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#include <setjmp.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <err.h>
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#include <time.h>
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#include <sys/types.h>
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#include "trek.h"
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#include "getpar.h"
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/*
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** #### ##### # #### ##### #### ##### # #
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** # # # # # # # # # # # #
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** ### # ##### #### # #### ### ###
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** # # # # # # # # # # # #
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** #### # # # # # # # # ##### # #
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**
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** C version by Eric P. Allman 5/76 (U.C. Berkeley) with help
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** from Jeff Poskanzer and Pete Rubinstein.
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**
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** I also want to thank everyone here at Berkeley who
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** where crazy enough to play the undebugged game. I want to
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** particularly thank Nick Whyte, who made considerable
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** suggestions regarding the content of the game. Why, I'll
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** never forget the time he suggested the name for the
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** "capture" command.
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**
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** Please send comments, questions, and suggestions about this
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** game to:
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** Eric P. Allman
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** Project INGRES
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** Electronics Research Laboratory
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** Cory Hall
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** University of California
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** Berkeley, California 94720
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**
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** If you make ANY changes in the game, I sure would like to
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** know about them. It is sort of an ongoing project for me,
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** and I very much want to put in any bug fixes and improvements
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** that you might come up with.
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**
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** FORTRASH version by Kay R. Fisher (DEC) "and countless others".
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** That was adapted from the "original BASIC program" (ha!) by
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** Mike Mayfield (Centerline Engineering).
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**
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** Additional inspiration taken from FORTRAN version by
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** David Matuszek and Paul Reynolds which runs on the CDC
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** 7600 at Lawrence Berkeley Lab, maintained there by
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** Andy Davidson. This version is also available at LLL
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** and at LMSC. In all fairness, this version was the
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** major inspiration for this version of the game (trans-
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** lation: I ripped off a whole lot of code).
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**
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** Minor other input from the "Battelle Version 7A" by Joe Miller
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** (Graphics Systems Group, Battelle-Columbus Labs) and
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** Ross Pavlac (Systems Programmer, Battelle Memorial
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** Institute). That version was written in December '74
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** and extensively modified June '75. It was adapted
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** from the FTN version by Ron Williams of CDC Sunnyvale,
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** which was adapted from the Basic version distributed
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** by DEC. It also had "neat stuff swiped" from T. T.
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** Terry and Jim Korp (University of Texas), Hicks (Penn
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** U.), and Rick Maus (Georgia Tech). Unfortunately, it
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** was not as readable as it could have been and so the
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** translation effort was severely hampered. None the
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** less, I got the idea of inhabited starsystems from this
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** version.
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**
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** Permission is given for use, copying, and modification of
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** all or part of this program and related documentation,
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** provided that all reference to the authors are maintained.
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**
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**
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**********************************************************************
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**
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** NOTES TO THE MAINTAINER:
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**
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** There is a compilation option xTRACE which must be set for any
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** trace information to be generated. It is probably defined in
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** the version that you get. It can be removed, however, if you
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** have trouble finding room in core.
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**
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** Many things in trek are not as clear as they might be, but are
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** done to reduce space. I compile with the -f and -O flags. I
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** am constrained to running with non-separated I/D space, since
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** we don't have doubleing point hardware here; even if we did, I
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** would like trek to be available to the large number of people
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** who either have an 11/40 or do not have FP hardware. I also
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** found it desirable to make the code run reentrant, so this
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** added even more space constraints.
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**
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** I use the portable C library to do my I/O. This is done be-
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** cause I wanted the game easily transportable to other C
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** implementations, and because I was too lazy to do the doubleing
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** point input myself. Little did I know. The portable C library
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** released by Bell Labs has more bugs than you would believe, so
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** I ended up rewriting the whole blessed thing. Trek excercises
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** many of the bugs in it, as well as bugs in some of the section
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** III UNIX routines. We have fixed them here. One main problem
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** was a bug in alloc() that caused it to always ask for a large
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** hunk of memory, which worked fine unless you were almost out,
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** which I inevitably was. If you want the code for all of this
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** stuff, it is also available through me.
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**
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***********************************************************************
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*/
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jmp_buf env;
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__dead static void
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usage(const char *av0)
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{
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errx(1, "Usage: %s [-fs]", av0);
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}
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int
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main(int argc, char **argv)
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{
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int ch;
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/* Revoke setgid privileges */
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setgid(getgid());
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/* Default to fast mode */
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Etc.fast = 1;
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srandom((long) time(NULL));
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while ((ch = getopt(argc, argv, "fst")) != -1) {
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switch (ch) {
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case 'f': /* set fast mode */
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Etc.fast++;
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break;
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case 's': /* set slow mode */
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Etc.fast = 0;
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break;
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#ifdef xTRACE
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case 't': /* trace */
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Trace++;
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break;
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#endif
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default:
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usage(argv[0]);
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}
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}
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if (optind < argc)
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usage(argv[0]);
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printf("\n * * * S T A R T R E K * * *\n\n"
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"Press return to continue.\n");
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if (setjmp(env)) {
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if ( !getynpar("Another game") )
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exit(0);
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}
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do {
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setup();
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play();
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} while (getynpar("Another game"));
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fflush(stdout);
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return 0;
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}
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