1 /*- 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved. 30 * @(#)main.c 8.1 (Berkeley) 5/31/93 31 * $FreeBSD: src/games/trek/main.c,v 1.7.2.1 2001/03/05 12:11:14 kris Exp $ 32 * $DragonFly: src/games/trek/main.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $ 33 */ 34 35 #include "trek.h" 36 #include "getpar.h" 37 38 #define PRIO 00 /* default priority */ 39 40 unsigned int Mother = 51 + (51 << 8); 41 42 /* 43 ** #### ##### # #### ##### #### ##### # # 44 ** # # # # # # # # # # # # 45 ** ### # ##### #### # #### ### ### 46 ** # # # # # # # # # # # # 47 ** #### # # # # # # # # ##### # # 48 ** 49 ** C version by Eric P. Allman 5/76 (U.C. Berkeley) with help 50 ** from Jeff Poskanzer and Pete Rubinstein. 51 ** 52 ** I also want to thank everyone here at Berkeley who 53 ** where crazy enough to play the undebugged game. I want to 54 ** particularly thank Nick Whyte, who made considerable 55 ** suggestions regarding the content of the game. Why, I'll 56 ** never forget the time he suggested the name for the 57 ** "capture" command. 58 ** 59 ** Please send comments, questions, and suggestions about this 60 ** game to: 61 ** Eric P. Allman 62 ** Project INGRES 63 ** Electronics Research Laboratory 64 ** Cory Hall 65 ** University of California 66 ** Berkeley, California 94720 67 ** 68 ** If you make ANY changes in the game, I sure would like to 69 ** know about them. It is sort of an ongoing project for me, 70 ** and I very much want to put in any bug fixes and improvements 71 ** that you might come up with. 72 ** 73 ** FORTRASH version by Kay R. Fisher (DEC) "and countless others". 74 ** That was adapted from the "original BASIC program" (ha!) by 75 ** Mike Mayfield (Centerline Engineering). 76 ** 77 ** Additional inspiration taken from FORTRAN version by 78 ** David Matuszek and Paul Reynolds which runs on the CDC 79 ** 7600 at Lawrence Berkeley Lab, maintained there by 80 ** Andy Davidson. This version is also available at LLL 81 ** and at LMSC. In all fairness, this version was the 82 ** major inspiration for this version of the game (trans- 83 ** lation: I ripped off a whole lot of code). 84 ** 85 ** Minor other input from the "Battelle Version 7A" by Joe Miller 86 ** (Graphics Systems Group, Battelle-Columbus Labs) and 87 ** Ross Pavlac (Systems Programmer, Battelle Memorial 88 ** Institute). That version was written in December '74 89 ** and extensively modified June '75. It was adapted 90 ** from the FTN version by Ron Williams of CDC Sunnyvale, 91 ** which was adapted from the Basic version distributed 92 ** by DEC. It also had "neat stuff swiped" from T. T. 93 ** Terry and Jim Korp (University of Texas), Hicks (Penn 94 ** U.), and Rick Maus (Georgia Tech). Unfortunately, it 95 ** was not as readable as it could have been and so the 96 ** translation effort was severely hampered. None the 97 ** less, I got the idea of inhabited starsystems from this 98 ** version. 99 ** 100 ** Permission is given for use, copying, and modification of 101 ** all or part of this program and related documentation, 102 ** provided that all reference to the authors are maintained. 103 ** 104 ** 105 ********************************************************************** 106 ** 107 ** NOTES TO THE MAINTAINER: 108 ** 109 ** There is a compilation option xTRACE which must be set for any 110 ** trace information to be generated. It is probably defined in 111 ** the version that you get. It can be removed, however, if you 112 ** have trouble finding room in core. 113 ** 114 ** Many things in trek are not as clear as they might be, but are 115 ** done to reduce space. I compile with the -f and -O flags. I 116 ** am constrained to running with non-separated I/D space, since 117 ** we don't have doubleing point hardware here; even if we did, I 118 ** would like trek to be available to the large number of people 119 ** who either have an 11/40 or do not have FP hardware. I also 120 ** found it desirable to make the code run reentrant, so this 121 ** added even more space constraints. 122 ** 123 ** I use the portable C library to do my I/O. This is done be- 124 ** cause I wanted the game easily transportable to other C 125 ** implementations, and because I was too lazy to do the doubleing 126 ** point input myself. Little did I know. The portable C library 127 ** released by Bell Labs has more bugs than you would believe, so 128 ** I ended up rewriting the whole blessed thing. Trek exercises 129 ** many of the bugs in it, as well as bugs in some of the section 130 ** III UNIX routines. We have fixed them here. One main problem 131 ** was a bug in alloc() that caused it to always ask for a large 132 ** hunk of memory, which worked fine unless you were almost out, 133 ** which I inevitably was. If you want the code for all of this 134 ** stuff, it is also available through me. 135 ** 136 *********************************************************************** 137 */ 138 139 jmp_buf env; 140 141 int 142 main(int argc, char **argv) 143 { 144 #if 0 145 extern FILE *f_log; 146 #endif 147 char opencode; 148 int prio; 149 int ac; 150 char **av; 151 152 /* Revoke setgid privileges */ 153 setgid(getgid()); 154 155 av = argv; 156 ac = argc; 157 av++; 158 srandomdev(); 159 opencode = 'w'; 160 prio = PRIO; 161 162 while (ac > 1 && av[0][0] == '-') { 163 switch (av[0][1]) { 164 case 'a': /* append to log file */ 165 opencode = 'a'; 166 break; 167 168 #ifdef xTRACE 169 case 't': /* trace */ 170 if (getuid() != Mother) 171 goto badflag; 172 Trace++; 173 break; 174 #endif 175 176 case 'p': /* set priority */ 177 if (getuid() != Mother) 178 goto badflag; 179 prio = atoi(av[0] + 2); 180 break; 181 182 default: 183 badflag: 184 printf("Invalid option: %s\n", av[0]); 185 186 } 187 ac--; 188 av++; 189 } 190 if (ac > 2) 191 syserr("arg count"); 192 #if 0 193 if (ac > 1) 194 f_log = fopen(av[0], opencode); 195 #endif 196 197 printf("\n * * * S T A R T R E K * * *\n\nPress return to continue.\n"); 198 199 if (setjmp(env)) { 200 if ( !getynpar("Another game") ) 201 exit(0); 202 } 203 do { 204 setup(); 205 play(); 206 } while (getynpar("Another game")); 207 208 fflush(stdout); 209 return (0); 210 } 211