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 * @(#)save.c 8.1 (Berkeley) 5/31/93 30 * $FreeBSD: src/games/backgammon/common_source/save.c,v 1.8 1999/11/30 03:48:27 billf Exp $ 31 * $DragonFly: src/games/backgammon/common_source/save.c,v 1.4 2006/08/08 16:36:11 pavalos Exp $ 32 */ 33 34 #include <fcntl.h> 35 #include <errno.h> 36 #include "back.h" 37 38 static void norec(const char *); 39 40 static const char confirm[] = "Are you sure you want to leave now?"; 41 static const char prompt[] = "Enter a file name: "; 42 static const char exist1[] = "The file '"; 43 static const char exist2[] = 44 "' already exists.\nAre you sure you want to use this file?"; 45 static const char cantuse[] = "\nCan't use "; 46 static const char saved[] = "This game has been saved on the file '"; 47 static const char type[] = "'.\nType \"backgammon "; 48 static const char rec[] = "\" to recover your game.\n\n"; 49 static const char cantrec[] = "Can't recover file: "; 50 51 void 52 save(int n) 53 { 54 int fdesc; 55 char *fs; 56 char fname[50]; 57 58 if (n) { 59 if (tflag) { 60 curmove(20, 0); 61 clend(); 62 } else 63 writec('\n'); 64 writel(confirm); 65 if (!yorn(0)) 66 return; 67 } 68 cflag = 1; 69 for (;;) { 70 writel(prompt); 71 fs = fname; 72 while ((*fs = readc()) != '\n') { 73 if (*fs == tty.c_cc[VERASE]) { 74 if (fs > fname) { 75 fs--; 76 if (tflag) 77 curmove(curr, curc - 1); 78 else 79 writec(*fs); 80 } else 81 writec('\007'); 82 continue; 83 } 84 writec(*fs++); 85 } 86 *fs = '\0'; 87 if ((fdesc = open(fname, O_RDWR)) == -1 && errno == ENOENT) { 88 if ((fdesc = creat(fname, 0600)) != -1) 89 break; 90 } 91 if (fdesc != -1) { 92 if (tflag) { 93 curmove(18, 0); 94 clend(); 95 } else 96 writec('\n'); 97 writel(exist1); 98 writel(fname); 99 writel(exist2); 100 cflag = 0; 101 close(fdesc); 102 if (yorn(0)) { 103 unlink(fname); 104 fdesc = creat(fname, 0700); 105 break; 106 } else { 107 cflag = 1; 108 continue; 109 } 110 } 111 writel(cantuse); 112 writel(fname); 113 writel(".\n"); 114 cflag = 1; 115 } 116 write(fdesc, board, sizeof board); 117 write(fdesc, off, sizeof off); 118 write(fdesc, in, sizeof in); 119 write(fdesc, dice, sizeof dice); 120 write(fdesc, &cturn, sizeof cturn); 121 write(fdesc, &dlast, sizeof dlast); 122 write(fdesc, &pnum, sizeof pnum); 123 write(fdesc, &rscore, sizeof rscore); 124 write(fdesc, &wscore, sizeof wscore); 125 write(fdesc, &gvalue, sizeof gvalue); 126 write(fdesc, &raflag, sizeof raflag); 127 close(fdesc); 128 if (tflag) 129 curmove(18, 0); 130 writel(saved); 131 writel(fname); 132 writel(type); 133 writel(fname); 134 writel(rec); 135 if (tflag) 136 clend(); 137 getout(); 138 } 139 140 void 141 recover(const char *s) 142 { 143 int fdesc; 144 145 if ((fdesc = open(s, O_RDONLY)) == -1) 146 norec(s); 147 read(fdesc, board, sizeof board); 148 read(fdesc, off, sizeof off); 149 read(fdesc, in, sizeof in); 150 read(fdesc, dice, sizeof dice); 151 read(fdesc, &cturn, sizeof cturn); 152 read(fdesc, &dlast, sizeof dlast); 153 read(fdesc, &pnum, sizeof pnum); 154 read(fdesc, &rscore, sizeof rscore); 155 read(fdesc, &wscore, sizeof wscore); 156 read(fdesc, &gvalue, sizeof gvalue); 157 read(fdesc, &raflag, sizeof raflag); 158 close(fdesc); 159 rflag = 1; 160 } 161 162 static void 163 norec(const char *s) 164 { 165 const char *c; 166 167 tflag = 0; 168 writel(cantrec); 169 c = s; 170 while (*c != '\0') 171 writec(*c++); 172 getout(); 173 } 174