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