1 /* $NetBSD: teach.c,v 1.21 2010/03/22 05:10:19 mrg 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[] = "@(#)teach.c 8.1 (Berkeley) 5/31/93"; 41 #else 42 __RCSID("$NetBSD: teach.c,v 1.21 2010/03/22 05:10:19 mrg Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include "back.h" 47 #include "tutor.h" 48 49 static const char *const helpm[] = { 50 "\nEnter a space or newline to roll, or", 51 " b to display the board", 52 " d to double", 53 " q to quit\n", 54 0 55 }; 56 57 static const char *const contin[] = { 58 "", 59 0 60 }; 61 62 int 63 main(int argc __unused, char *argv[]) 64 { 65 int i; 66 67 /* revoke setgid privileges */ 68 setgid(getgid()); 69 70 signal(SIGINT, getout); 71 if (tcgetattr(0, &old) == -1) /* get old tty mode */ 72 errexit("teachgammon(gtty)"); 73 noech = old; 74 noech.c_lflag &= ~ECHO; 75 raw = noech; 76 raw.c_lflag &= ~ICANON; /* set up modes */ 77 ospeed = cfgetospeed(&old); /* for termlib */ 78 tflag = getcaps(getenv("TERM")); 79 #ifdef V7 80 while (*++argv != 0) 81 #else 82 while (*++argv != -1) 83 #endif 84 getarg(&argv); 85 if (tflag) { 86 noech.c_oflag &= ~(ONLCR | OXTABS); 87 raw.c_oflag &= ~(ONLCR | OXTABS); 88 clear(); 89 } 90 wrtext(hello); 91 wrtext(list); 92 i = wrtext(contin); 93 if (i == 0) 94 i = 2; 95 init(); 96 while (i) 97 switch (i) { 98 case 1: 99 leave(); 100 101 case 2: 102 if ((i = wrtext(intro1)) != 0) 103 break; 104 wrboard(); 105 if ((i = wrtext(intro2)) != 0) 106 break; 107 108 case 3: 109 if ((i = wrtext(moves)) != 0) 110 break; 111 112 case 4: 113 if ((i = wrtext(removepiece)) != 0) 114 break; 115 116 case 5: 117 if ((i = wrtext(hits)) != 0) 118 break; 119 120 case 6: 121 if ((i = wrtext(endgame)) != 0) 122 break; 123 124 case 7: 125 if ((i = wrtext(doubl)) != 0) 126 break; 127 128 case 8: 129 if ((i = wrtext(stragy)) != 0) 130 break; 131 132 case 9: 133 if ((i = wrtext(prog)) != 0) 134 break; 135 136 case 10: 137 if ((i = wrtext(lastch)) != 0) 138 break; 139 } 140 tutor(); 141 /* NOTREACHED */ 142 return (0); 143 } 144 145 void 146 leave(void) 147 { 148 if (tflag) 149 clear(); 150 else 151 writec('\n'); 152 fixtty(&old); 153 execl(EXEC, "backgammon", "-n", args[0]?args:0, (char *) 0); 154 writel("Help! Backgammon program is missing\007!!\n"); 155 exit(1); 156 } 157