1 /* $NetBSD: main.c,v 1.23 2011/08/29 20:30:37 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 5/31/93"; 41 #else 42 __RCSID("$NetBSD: main.c,v 1.23 2011/08/29 20:30:37 joerg Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <stdio.h> 47 #include <setjmp.h> 48 #include <stdlib.h> 49 #include <unistd.h> 50 #include <err.h> 51 #include <time.h> 52 #include <sys/types.h> 53 #include "trek.h" 54 #include "getpar.h" 55 56 57 /* 58 ** #### ##### # #### ##### #### ##### # # 59 ** # # # # # # # # # # # # 60 ** ### # ##### #### # #### ### ### 61 ** # # # # # # # # # # # # 62 ** #### # # # # # # # # ##### # # 63 ** 64 ** C version by Eric P. Allman 5/76 (U.C. Berkeley) with help 65 ** from Jeff Poskanzer and Pete Rubinstein. 66 ** 67 ** I also want to thank everyone here at Berkeley who 68 ** where crazy enough to play the undebugged game. I want to 69 ** particularly thank Nick Whyte, who made considerable 70 ** suggestions regarding the content of the game. Why, I'll 71 ** never forget the time he suggested the name for the 72 ** "capture" command. 73 ** 74 ** Please send comments, questions, and suggestions about this 75 ** game to: 76 ** Eric P. Allman 77 ** Project INGRES 78 ** Electronics Research Laboratory 79 ** Cory Hall 80 ** University of California 81 ** Berkeley, California 94720 82 ** 83 ** If you make ANY changes in the game, I sure would like to 84 ** know about them. It is sort of an ongoing project for me, 85 ** and I very much want to put in any bug fixes and improvements 86 ** that you might come up with. 87 ** 88 ** FORTRASH version by Kay R. Fisher (DEC) "and countless others". 89 ** That was adapted from the "original BASIC program" (ha!) by 90 ** Mike Mayfield (Centerline Engineering). 91 ** 92 ** Additional inspiration taken from FORTRAN version by 93 ** David Matuszek and Paul Reynolds which runs on the CDC 94 ** 7600 at Lawrence Berkeley Lab, maintained there by 95 ** Andy Davidson. This version is also available at LLL 96 ** and at LMSC. In all fairness, this version was the 97 ** major inspiration for this version of the game (trans- 98 ** lation: I ripped off a whole lot of code). 99 ** 100 ** Minor other input from the "Battelle Version 7A" by Joe Miller 101 ** (Graphics Systems Group, Battelle-Columbus Labs) and 102 ** Ross Pavlac (Systems Programmer, Battelle Memorial 103 ** Institute). That version was written in December '74 104 ** and extensively modified June '75. It was adapted 105 ** from the FTN version by Ron Williams of CDC Sunnyvale, 106 ** which was adapted from the Basic version distributed 107 ** by DEC. It also had "neat stuff swiped" from T. T. 108 ** Terry and Jim Korp (University of Texas), Hicks (Penn 109 ** U.), and Rick Maus (Georgia Tech). Unfortunately, it 110 ** was not as readable as it could have been and so the 111 ** translation effort was severely hampered. None the 112 ** less, I got the idea of inhabited starsystems from this 113 ** version. 114 ** 115 ** Permission is given for use, copying, and modification of 116 ** all or part of this program and related documentation, 117 ** provided that all reference to the authors are maintained. 118 ** 119 ** 120 ********************************************************************** 121 ** 122 ** NOTES TO THE MAINTAINER: 123 ** 124 ** There is a compilation option xTRACE which must be set for any 125 ** trace information to be generated. It is probably defined in 126 ** the version that you get. It can be removed, however, if you 127 ** have trouble finding room in core. 128 ** 129 ** Many things in trek are not as clear as they might be, but are 130 ** done to reduce space. I compile with the -f and -O flags. I 131 ** am constrained to running with non-separated I/D space, since 132 ** we don't have doubleing point hardware here; even if we did, I 133 ** would like trek to be available to the large number of people 134 ** who either have an 11/40 or do not have FP hardware. I also 135 ** found it desirable to make the code run reentrant, so this 136 ** added even more space constraints. 137 ** 138 ** I use the portable C library to do my I/O. This is done be- 139 ** cause I wanted the game easily transportable to other C 140 ** implementations, and because I was too lazy to do the doubleing 141 ** point input myself. Little did I know. The portable C library 142 ** released by Bell Labs has more bugs than you would believe, so 143 ** I ended up rewriting the whole blessed thing. Trek excercises 144 ** many of the bugs in it, as well as bugs in some of the section 145 ** III UNIX routines. We have fixed them here. One main problem 146 ** was a bug in alloc() that caused it to always ask for a large 147 ** hunk of memory, which worked fine unless you were almost out, 148 ** which I inevitably was. If you want the code for all of this 149 ** stuff, it is also available through me. 150 ** 151 *********************************************************************** 152 */ 153 154 jmp_buf env; 155 156 __dead static void 157 usage(const char *av0) 158 { 159 errx(1, "Usage: %s [-fs]", av0); 160 } 161 162 int 163 main(int argc, char **argv) 164 { 165 int ch; 166 167 /* Revoke setgid privileges */ 168 setgid(getgid()); 169 170 /* Default to fast mode */ 171 Etc.fast = 1; 172 173 srandom((long) time(NULL)); 174 175 while ((ch = getopt(argc, argv, "fst")) != -1) { 176 switch (ch) { 177 case 'f': /* set fast mode */ 178 Etc.fast++; 179 break; 180 181 case 's': /* set slow mode */ 182 Etc.fast = 0; 183 break; 184 185 #ifdef xTRACE 186 case 't': /* trace */ 187 Trace++; 188 break; 189 #endif 190 191 default: 192 usage(argv[0]); 193 } 194 } 195 if (optind < argc) 196 usage(argv[0]); 197 198 printf("\n * * * S T A R T R E K * * *\n\n" 199 "Press return to continue.\n"); 200 201 if (setjmp(env)) { 202 if ( !getynpar("Another game") ) 203 exit(0); 204 } 205 206 do { 207 setup(); 208 play(); 209 } while (getynpar("Another game")); 210 211 fflush(stdout); 212 return 0; 213 } 214
Indexes created Sat Sep 20 22:09:52 GMT 2025