1 /* $NetBSD: teach.c,v 1.13 2001/04/06 11:13:52 wiz 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)teach.c 8.1 (Berkeley) 5/31/93"; 45 #else 46 __RCSID("$NetBSD: teach.c,v 1.13 2001/04/06 11:13:52 wiz Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include "back.h" 51 #include "tutor.h" 52 53 const char *const helpm[] = { 54 "\nEnter a space or newline to roll, or", 55 " b to display the board", 56 " d to double", 57 " q to quit\n", 58 0 59 }; 60 61 const char *const contin[] = { 62 "", 63 0 64 }; 65 66 int 67 main(argc, argv) 68 int argc; 69 char *argv[]; 70 { 71 int i; 72 73 /* revoke setgid privileges */ 74 setgid(getgid()); 75 76 signal(SIGINT, getout); 77 if (tcgetattr(0, &old) == -1) /* get old tty mode */ 78 errexit("teachgammon(gtty)"); 79 noech = old; 80 noech.c_lflag &= ~ECHO; 81 raw = noech; 82 raw.c_lflag &= ~ICANON; /* set up modes */ 83 ospeed = cfgetospeed(&old); /* for termlib */ 84 tflag = getcaps(getenv("TERM")); 85 #ifdef V7 86 while (*++argv != 0) 87 #else 88 while (*++argv != -1) 89 #endif 90 getarg(&argv); 91 if (tflag) { 92 noech.c_oflag &= ~(ONLCR | OXTABS); 93 raw.c_oflag &= ~(ONLCR | OXTABS); 94 clear(); 95 } 96 text(hello); 97 text(list); 98 i = text(contin); 99 if (i == 0) 100 i = 2; 101 init(); 102 while (i) 103 switch (i) { 104 case 1: 105 leave(); 106 107 case 2: 108 if ((i = text(intro1)) != 0) 109 break; 110 wrboard(); 111 if ((i = text(intro2)) != 0) 112 break; 113 114 case 3: 115 if ((i = text(moves)) != 0) 116 break; 117 118 case 4: 119 if ((i = text(removepiece)) != 0) 120 break; 121 122 case 5: 123 if ((i = text(hits)) != 0) 124 break; 125 126 case 6: 127 if ((i = text(endgame)) != 0) 128 break; 129 130 case 7: 131 if ((i = text(doubl)) != 0) 132 break; 133 134 case 8: 135 if ((i = text(stragy)) != 0) 136 break; 137 138 case 9: 139 if ((i = text(prog)) != 0) 140 break; 141 142 case 10: 143 if ((i = text(lastch)) != 0) 144 break; 145 } 146 tutor(); 147 /* NOTREACHED */ 148 return (0); 149 } 150 151 void 152 leave() 153 { 154 if (tflag) 155 clear(); 156 else 157 writec('\n'); 158 fixtty(&old); 159 execl(EXEC, "backgammon", "-n", args[0]?args:0, 0); 160 writel("Help! Backgammon program is missing\007!!\n"); 161 exit(1); 162 } 163