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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved. 34 * @(#)teach.c 8.1 (Berkeley) 5/31/93 35 * $FreeBSD: src/games/backgammon/teachgammon/teach.c,v 1.12 1999/11/30 03:48:30 billf Exp $ 36 * $DragonFly: src/games/backgammon/teachgammon/teach.c,v 1.3 2006/08/08 16:36:11 pavalos Exp $ 37 */ 38 39 #include <string.h> 40 #include <sys/types.h> 41 #include <termcap.h> 42 #include <unistd.h> 43 #include <signal.h> 44 #include "back.h" 45 #include "tutor.h" 46 47 const char *const helpm[] = { 48 "\nEnter a space or newline to roll, or", 49 " b to display the board", 50 " d to double", 51 " q to quit\n", 52 0 53 }; 54 55 const char *const contin[] = { 56 "", 57 0 58 }; 59 60 int 61 main(int argc, char **argv) 62 { 63 int i; 64 65 /* revoke privs */ 66 setgid(getgid()); 67 68 acnt = 1; 69 signal (SIGINT,(sig_t)getout); 70 if (tcgetattr (0,&tty) == -1) /* get old tty mode */ 71 errexit ("teachgammon(tcgetattr)"); 72 old = tty.c_lflag; 73 raw = ((noech = old & ~ECHO) & ~ICANON); /* set up modes */ 74 ospeed = cfgetospeed(&tty); /* for termlib */ 75 tflag = getcaps (getenv ("TERM")); 76 getarg (argc, argv); 77 if (tflag) { 78 noech &= ~(ICRNL|OXTABS); 79 raw &= ~(ICRNL|OXTABS); 80 clear(); 81 } 82 text (hello); 83 text (list); 84 i = text (contin); 85 if (i == 0) 86 i = 2; 87 init(); 88 while (i) 89 switch (i) { 90 91 case 1: 92 leave(); 93 94 case 2: 95 if ((i = text(intro1)) != 0) 96 break; 97 wrboard(); 98 if ((i = text(intro2)) != 0) 99 break; 100 101 case 3: 102 if ((i = text(moves)) != 0) 103 break; 104 105 case 4: 106 if ((i = text(remove)) != 0) 107 break; 108 109 case 5: 110 if ((i = text(hits)) != 0) 111 break; 112 113 case 6: 114 if ((i = text(endgame)) != 0) 115 break; 116 117 case 7: 118 if ((i = text(doubl)) != 0) 119 break; 120 121 case 8: 122 if ((i = text(stragy)) != 0) 123 break; 124 125 case 9: 126 if ((i = text(prog)) != 0) 127 break; 128 129 case 10: 130 if ((i = text(lastch)) != 0) 131 break; 132 } 133 tutor(); 134 /* NOTREACHED */ 135 return(0); 136 } 137 138 void 139 leave(void) 140 { 141 int i; 142 if (tflag) 143 clear(); 144 else 145 writec ('\n'); 146 fixtty(old); 147 args[0] = strdup("backgammon"); 148 args[acnt++] = strdup("-n"); 149 args[acnt] = 0; 150 execv (EXEC,args); 151 for (i = 0; i < acnt; i++) 152 free (args[i]); 153 writel ("Help! Backgammon program is missing\007!!\n"); 154 exit (-1); 155 } 156