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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)save.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/backgammon/common_source/save.c,v 1.8 1999/11/30 03:48:27 billf Exp $ 35 * $DragonFly: src/games/backgammon/common_source/save.c,v 1.4 2006/08/08 16:36:11 pavalos Exp $ 36 */ 37 38 #include <fcntl.h> 39 #include <errno.h> 40 #include "back.h" 41 42 static void norec(const char *); 43 44 static const char confirm[] = "Are you sure you want to leave now?"; 45 static const char prompt[] = "Enter a file name: "; 46 static const char exist1[] = "The file '"; 47 static const char exist2[] = 48 "' already exists.\nAre you sure you want to use this file?"; 49 static const char cantuse[] = "\nCan't use "; 50 static const char saved[] = "This game has been saved on the file '"; 51 static const char type[] = "'.\nType \"backgammon "; 52 static const char rec[] = "\" to recover your game.\n\n"; 53 static const char cantrec[] = "Can't recover file: "; 54 55 void 56 save(int n) 57 { 58 int fdesc; 59 char *fs; 60 char fname[50]; 61 62 if (n) { 63 if (tflag) { 64 curmove (20,0); 65 clend(); 66 } else 67 writec ('\n'); 68 writel (confirm); 69 if (! yorn(0)) 70 return; 71 } 72 cflag = 1; 73 for (;;) { 74 writel (prompt); 75 fs = fname; 76 while ((*fs = readc()) != '\n') { 77 if (*fs == tty.sg_erase) { 78 if (fs > fname) { 79 fs--; 80 if (tflag) 81 curmove (curr,curc-1); 82 else 83 writec (*fs); 84 } else 85 writec ('\007'); 86 continue; 87 } 88 writec (*fs++); 89 } 90 *fs = '\0'; 91 if ((fdesc = open(fname,O_RDWR)) == -1 && errno == ENOENT) { 92 if ((fdesc = creat (fname,0600)) != -1) 93 break; 94 } 95 if (fdesc != -1) { 96 if (tflag) { 97 curmove (18,0); 98 clend(); 99 } else 100 writec ('\n'); 101 writel (exist1); 102 writel (fname); 103 writel (exist2); 104 cflag = 0; 105 close (fdesc); 106 if (yorn (0)) { 107 unlink (fname); 108 fdesc = creat (fname,0700); 109 break; 110 } else { 111 cflag = 1; 112 continue; 113 } 114 } 115 writel (cantuse); 116 writel (fname); 117 writel (".\n"); 118 cflag = 1; 119 } 120 write (fdesc,board,sizeof board); 121 write (fdesc,off,sizeof off); 122 write (fdesc,in,sizeof in); 123 write (fdesc,dice,sizeof dice); 124 write (fdesc,&cturn,sizeof cturn); 125 write (fdesc,&dlast,sizeof dlast); 126 write (fdesc,&pnum,sizeof pnum); 127 write (fdesc,&rscore,sizeof rscore); 128 write (fdesc,&wscore,sizeof wscore); 129 write (fdesc,&gvalue,sizeof gvalue); 130 write (fdesc,&raflag,sizeof raflag); 131 close (fdesc); 132 if (tflag) 133 curmove (18,0); 134 writel (saved); 135 writel (fname); 136 writel (type); 137 writel (fname); 138 writel (rec); 139 if (tflag) 140 clend(); 141 getout (); 142 } 143 144 void 145 recover(const char *s) 146 { 147 int fdesc; 148 149 if ((fdesc = open (s,O_RDONLY)) == -1) 150 norec (s); 151 read (fdesc,board,sizeof board); 152 read (fdesc,off,sizeof off); 153 read (fdesc,in,sizeof in); 154 read (fdesc,dice,sizeof dice); 155 read (fdesc,&cturn,sizeof cturn); 156 read (fdesc,&dlast,sizeof dlast); 157 read (fdesc,&pnum,sizeof pnum); 158 read (fdesc,&rscore,sizeof rscore); 159 read (fdesc,&wscore,sizeof wscore); 160 read (fdesc,&gvalue,sizeof gvalue); 161 read (fdesc,&raflag,sizeof raflag); 162 close (fdesc); 163 rflag = 1; 164 } 165 166 static void 167 norec(const char *s) 168 { 169 const char *c; 170 171 tflag = 0; 172 writel (cantrec); 173 c = s; 174 while (*c != '\0') 175 writec (*c++); 176 getout (); 177 } 178