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 * @(#)teach.c 8.1 (Berkeley) 5/31/93 31 * $FreeBSD: src/games/backgammon/teachgammon/teach.c,v 1.12 1999/11/30 03:48:30 billf Exp $ 32 * $DragonFly: src/games/backgammon/teachgammon/teach.c,v 1.3 2006/08/08 16:36:11 pavalos Exp $ 33 */ 34 35 #include <string.h> 36 #include <sys/types.h> 37 #include <termcap.h> 38 #include <unistd.h> 39 #include <signal.h> 40 #include "back.h" 41 #include "tutor.h" 42 43 const char *const helpm[] = { 44 "\nEnter a space or newline to roll, or", 45 " b to display the board", 46 " d to double", 47 " q to quit\n", 48 0 49 }; 50 51 const char *const contin[] = { 52 "", 53 0 54 }; 55 56 int 57 main(int argc, char **argv) 58 { 59 int i; 60 61 /* revoke privs */ 62 setgid(getgid()); 63 64 acnt = 1; 65 signal(SIGINT, (sig_t)getout); 66 if (tcgetattr(0, &tty) == -1) /* get old tty mode */ 67 errexit("teachgammon(tcgetattr)"); 68 old = tty.c_lflag; 69 raw = ((noech = old & ~ECHO) & ~ICANON); /* set up modes */ 70 ospeed = cfgetospeed(&tty); /* for termlib */ 71 tflag = getcaps(getenv("TERM")); 72 getarg(argc, argv); 73 if (tflag) { 74 noech &= ~(ICRNL | OXTABS); 75 raw &= ~(ICRNL | OXTABS); 76 clear(); 77 } 78 text(hello); 79 text(list); 80 i = text(contin); 81 if (i == 0) 82 i = 2; 83 init(); 84 while (i) 85 switch (i) { 86 case 1: 87 leave(); 88 89 case 2: 90 if ((i = text(intro1)) != 0) 91 break; 92 wrboard(); 93 if ((i = text(intro2)) != 0) 94 break; 95 96 case 3: 97 if ((i = text(moves)) != 0) 98 break; 99 100 case 4: 101 if ((i = text(remove)) != 0) 102 break; 103 104 case 5: 105 if ((i = text(hits)) != 0) 106 break; 107 108 case 6: 109 if ((i = text(endgame)) != 0) 110 break; 111 112 case 7: 113 if ((i = text(doubl)) != 0) 114 break; 115 116 case 8: 117 if ((i = text(stragy)) != 0) 118 break; 119 120 case 9: 121 if ((i = text(prog)) != 0) 122 break; 123 124 case 10: 125 if ((i = text(lastch)) != 0) 126 break; 127 } 128 tutor(); 129 /* NOTREACHED */ 130 return (0); 131 } 132 133 void 134 leave(void) 135 { 136 int i; 137 138 if (tflag) 139 clear(); 140 else 141 writec('\n'); 142 fixtty(old); 143 args[0] = strdup("backgammon"); 144 args[acnt++] = strdup("-n"); 145 args[acnt] = 0; 146 execv(EXEC, args); 147 for (i = 0; i < acnt; i++) 148 free(args[i]); 149 writel("Help! Backgammon program is missing\007!!\n"); 150 exit(-1); 151 } 152