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 1.3 2006/03/22 20:06:13 drhodus Exp $ 36 */ 37 38 #include <fcntl.h> 39 #include <errno.h> 40 #include "back.h" 41 42 static const char confirm[] = "Are you sure you want to leave now?"; 43 static const char prompt[] = "Enter a file name: "; 44 static const char exist1[] = "The file '"; 45 static const char exist2[] = 46 "' already exists.\nAre you sure you want to use this file?"; 47 static const char cantuse[] = "\nCan't use "; 48 static const char saved[] = "This game has been saved on the file '"; 49 static const char type[] = "'.\nType \"backgammon "; 50 static const char rec[] = "\" to recover your game.\n\n"; 51 static const char cantrec[] = "Can't recover file: "; 52 53 save (n) 54 int n; 55 56 { 57 int fdesc; 58 char *fs; 59 char fname[50]; 60 61 if (n) { 62 if (tflag) { 63 curmove (20,0); 64 clend(); 65 } else 66 writec ('\n'); 67 writel (confirm); 68 if (! yorn(0)) 69 return; 70 } 71 cflag = 1; 72 for (;;) { 73 writel (prompt); 74 fs = fname; 75 while ((*fs = readc()) != '\n') { 76 if (*fs == tty.sg_erase) { 77 if (fs > fname) { 78 fs--; 79 if (tflag) 80 curmove (curr,curc-1); 81 else 82 writec (*fs); 83 } else 84 writec ('\007'); 85 continue; 86 } 87 writec (*fs++); 88 } 89 *fs = '\0'; 90 if ((fdesc = open(fname,O_RDWR)) == -1 && errno == ENOENT) { 91 if ((fdesc = creat (fname,0600)) != -1) 92 break; 93 } 94 if (fdesc != -1) { 95 if (tflag) { 96 curmove (18,0); 97 clend(); 98 } else 99 writec ('\n'); 100 writel (exist1); 101 writel (fname); 102 writel (exist2); 103 cflag = 0; 104 close (fdesc); 105 if (yorn (0)) { 106 unlink (fname); 107 fdesc = creat (fname,0700); 108 break; 109 } else { 110 cflag = 1; 111 continue; 112 } 113 } 114 writel (cantuse); 115 writel (fname); 116 writel (".\n"); 117 cflag = 1; 118 } 119 write (fdesc,board,sizeof board); 120 write (fdesc,off,sizeof off); 121 write (fdesc,in,sizeof in); 122 write (fdesc,dice,sizeof dice); 123 write (fdesc,&cturn,sizeof cturn); 124 write (fdesc,&dlast,sizeof dlast); 125 write (fdesc,&pnum,sizeof pnum); 126 write (fdesc,&rscore,sizeof rscore); 127 write (fdesc,&wscore,sizeof wscore); 128 write (fdesc,&gvalue,sizeof gvalue); 129 write (fdesc,&raflag,sizeof raflag); 130 close (fdesc); 131 if (tflag) 132 curmove (18,0); 133 writel (saved); 134 writel (fname); 135 writel (type); 136 writel (fname); 137 writel (rec); 138 if (tflag) 139 clend(); 140 getout (); 141 } 142 143 int 144 recover (s) 145 const char *s; 146 147 { 148 int i; 149 int fdesc; 150 151 if ((fdesc = open (s,O_RDONLY)) == -1) 152 norec (s); 153 read (fdesc,board,sizeof board); 154 read (fdesc,off,sizeof off); 155 read (fdesc,in,sizeof in); 156 read (fdesc,dice,sizeof dice); 157 read (fdesc,&cturn,sizeof cturn); 158 read (fdesc,&dlast,sizeof dlast); 159 read (fdesc,&pnum,sizeof pnum); 160 read (fdesc,&rscore,sizeof rscore); 161 read (fdesc,&wscore,sizeof wscore); 162 read (fdesc,&gvalue,sizeof gvalue); 163 read (fdesc,&raflag,sizeof raflag); 164 close (fdesc); 165 rflag = 1; 166 } 167 168 int 169 norec (s) 170 const char *s; 171 172 { 173 const char *c; 174 175 tflag = 0; 176 writel (cantrec); 177 c = s; 178 while (*c != '\0') 179 writec (*c++); 180 getout (); 181 } 182