1/* $NetBSD: save.c,v 1.15 2012/10/13 18:44:15 dholland 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33#ifndef lint 34#if 0 35static char sccsid[] = "@(#)save.c 8.1 (Berkeley) 5/31/93"; 36#else 37__RCSID("$NetBSD: save.c,v 1.15 2012/10/13 18:44:15 dholland Exp $"); 38#endif 39#endif /* not lint */ 40 41#include <errno.h> 42 43#include "back.h" 44 45static const char confirm[] = "Are you sure you want to leave now?"; 46static const char prompt[] = "Enter a file name: "; 47static const char exist1[] = "The file '"; 48static const char exist2[] = 49"' already exists.\nAre you sure you want to use this file?"; 50static const char cantuse[] = "\nCan't use "; 51static const char saved[] = "This game has been saved on the file '"; 52static const char type[] = "'.\nType \"backgammon "; 53static const char rec[] = "\" to recover your game.\n\n"; 54static const char cantrec[] = "Can't recover file: "; 55 56static void norec(const char *) __dead; 57 58void 59save(struct move *mm, int n) 60{ 61 int fdesc; 62 char *fs; 63 char fname[50]; 64 65 if (n) { 66 if (tflag) { 67 curmove(20, 0); 68 clend(); 69 } else 70 writec('\n'); 71 writel(confirm); 72 if (!yorn(0)) 73 return; 74 } 75 cflag = 1; 76 for (;;) { 77 writel(prompt); 78 fs = fname; 79 while ((*fs = readc()) != '\n') { 80 if (*fs == old.c_cc[VERASE]) { 81 if (fs > fname) { 82 fs--; 83 if (tflag) 84 curmove(curr, curc - 1); 85 else 86 writec(*fs); 87 } else 88 writec('\007'); 89 continue; 90 } 91 writec(*fs++); 92 } 93 *fs = '\0'; 94 if ((fdesc = open(fname, O_RDWR)) == -1 && errno == ENOENT) { 95 if ((fdesc = creat(fname, 0600)) != -1) 96 break; 97 } 98 if (fdesc != -1) { 99 if (tflag) { 100 curmove(18, 0); 101 clend(); 102 } else 103 writec('\n'); 104 writel(exist1); 105 writel(fname); 106 writel(exist2); 107 cflag = 0; 108 close(fdesc); 109 if (yorn(0)) { 110 unlink(fname); 111 fdesc = creat(fname, 0600); 112 break; 113 } else { 114 cflag = 1; 115 continue; 116 } 117 } 118 writel(cantuse); 119 writel(fname); 120 writel(".\n"); 121 cflag = 1; 122 } 123 write(fdesc, board, sizeof board); 124 write(fdesc, off, sizeof off); 125 write(fdesc, in, sizeof in); 126 write(fdesc, mm->dice, sizeof mm->dice); 127 write(fdesc, &cturn, sizeof cturn); 128 write(fdesc, &dlast, sizeof dlast); 129 write(fdesc, &pnum, sizeof pnum); 130 write(fdesc, &rscore, sizeof rscore); 131 write(fdesc, &wscore, sizeof wscore); 132 write(fdesc, &gvalue, sizeof gvalue); 133 write(fdesc, &raflag, sizeof raflag); 134 close(fdesc); 135 if (tflag) 136 curmove(18, 0); 137 writel(saved); 138 writel(fname); 139 writel(type); 140 writel(fname); 141 writel(rec); 142 if (tflag) 143 clend(); 144 getout(0); 145} 146 147void 148recover(struct move *mm, const char *s) 149{ 150 int fdesc; 151 152 if ((fdesc = open(s, O_RDONLY)) == -1) 153 norec(s); 154 read(fdesc, board, sizeof board); 155 read(fdesc, off, sizeof off); 156 read(fdesc, in, sizeof in); 157 read(fdesc, mm->dice, sizeof mm->dice); 158 read(fdesc, &cturn, sizeof cturn); 159 read(fdesc, &dlast, sizeof dlast); 160 read(fdesc, &pnum, sizeof pnum); 161 read(fdesc, &rscore, sizeof rscore); 162 read(fdesc, &wscore, sizeof wscore); 163 read(fdesc, &gvalue, sizeof gvalue); 164 read(fdesc, &raflag, sizeof raflag); 165 close(fdesc); 166 rflag = 1; 167} 168 169static void 170norec(const char *s) 171{ 172 const char *c; 173 174 tflag = 0; 175 writel(cantrec); 176 c = s; 177 while (*c != '\0') 178 writec(*c++); 179 getout(0); 180} 181