1 /* $NetBSD: save.c,v 1.10 2003/08/07 09:36:57 agc 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 35 static char sccsid[] = "@(#)save.c 8.1 (Berkeley) 5/31/93"; 36 #else 37 __RCSID("$NetBSD: save.c,v 1.10 2003/08/07 09:36:57 agc Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <errno.h> 42 43 #include "back.h" 44 45 static const char confirm[] = "Are you sure you want to leave now?"; 46 static const char prompt[] = "Enter a file name: "; 47 static const char exist1[] = "The file '"; 48 static const char exist2[] = 49 "' already exists.\nAre you sure you want to use this file?"; 50 static const char cantuse[] = "\nCan't use "; 51 static const char saved[] = "This game has been saved on the file '"; 52 static const char type[] = "'.\nType \"backgammon "; 53 static const char rec[] = "\" to recover your game.\n\n"; 54 static const char cantrec[] = "Can't recover file: "; 55 56 void 57 save(n) 58 int n; 59 { 60 int fdesc; 61 char *fs; 62 char fname[50]; 63 64 if (n) { 65 if (tflag) { 66 curmove(20, 0); 67 clend(); 68 } else 69 writec('\n'); 70 writel(confirm); 71 if (!yorn(0)) 72 return; 73 } 74 cflag = 1; 75 for (;;) { 76 writel(prompt); 77 fs = fname; 78 while ((*fs = readc()) != '\n') { 79 if (*fs == old.c_cc[VERASE]) { 80 if (fs > fname) { 81 fs--; 82 if (tflag) 83 curmove(curr, curc - 1); 84 else 85 writec(*fs); 86 } else 87 writec('\007'); 88 continue; 89 } 90 writec(*fs++); 91 } 92 *fs = '\0'; 93 if ((fdesc = open(fname, O_RDWR)) == -1 && errno == ENOENT) { 94 if ((fdesc = creat(fname, 0600)) != -1) 95 break; 96 } 97 if (fdesc != -1) { 98 if (tflag) { 99 curmove(18, 0); 100 clend(); 101 } else 102 writec('\n'); 103 writel(exist1); 104 writel(fname); 105 writel(exist2); 106 cflag = 0; 107 close(fdesc); 108 if (yorn(0)) { 109 unlink(fname); 110 fdesc = creat(fname, 0600); 111 break; 112 } else { 113 cflag = 1; 114 continue; 115 } 116 } 117 writel(cantuse); 118 writel(fname); 119 writel(".\n"); 120 close(fdesc); 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, dice, sizeof 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 } 146 147 void 148 recover(s) 149 const char *s; 150 { 151 int fdesc; 152 153 if ((fdesc = open(s, O_RDONLY)) == -1) 154 norec(s); 155 read(fdesc, board, sizeof board); 156 read(fdesc, off, sizeof off); 157 read(fdesc, in, sizeof in); 158 read(fdesc, dice, sizeof dice); 159 read(fdesc, &cturn, sizeof cturn); 160 read(fdesc, &dlast, sizeof dlast); 161 read(fdesc, &pnum, sizeof pnum); 162 read(fdesc, &rscore, sizeof rscore); 163 read(fdesc, &wscore, sizeof wscore); 164 read(fdesc, &gvalue, sizeof gvalue); 165 read(fdesc, &raflag, sizeof raflag); 166 close(fdesc); 167 rflag = 1; 168 } 169 170 void 171 norec(s) 172 const char *s; 173 { 174 const char *c; 175 176 tflag = 0; 177 writel(cantrec); 178 c = s; 179 while (*c != '\0') 180 writec(*c++); 181 getout(0); 182 } 183