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 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)save.c 8.1 (Berkeley) 5/31/93"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD: src/games/backgammon/common_source/save.c,v 1.8 1999/11/30 03:48:27 billf Exp $"; 40 #endif /* not lint */ 41 42 #include <fcntl.h> 43 #include <errno.h> 44 #include "back.h" 45 46 static const char confirm[] = "Are you sure you want to leave now?"; 47 static const char prompt[] = "Enter a file name: "; 48 static const char exist1[] = "The file '"; 49 static const char exist2[] = 50 "' already exists.\nAre you sure you want to use this file?"; 51 static const char cantuse[] = "\nCan't use "; 52 static const char saved[] = "This game has been saved on the file '"; 53 static const char type[] = "'.\nType \"backgammon "; 54 static const char rec[] = "\" to recover your game.\n\n"; 55 static const char cantrec[] = "Can't recover file: "; 56 57 save (n) 58 int n; 59 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 == tty.sg_erase) { 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,0700); 112 break; 113 } else { 114 cflag = 1; 115 continue; 116 } 117 } 118 writel (cantuse); 119 writel (fname); 120 writel (".\n"); 121 close (fdesc); 122 cflag = 1; 123 } 124 write (fdesc,board,sizeof board); 125 write (fdesc,off,sizeof off); 126 write (fdesc,in,sizeof in); 127 write (fdesc,dice,sizeof dice); 128 write (fdesc,&cturn,sizeof cturn); 129 write (fdesc,&dlast,sizeof dlast); 130 write (fdesc,&pnum,sizeof pnum); 131 write (fdesc,&rscore,sizeof rscore); 132 write (fdesc,&wscore,sizeof wscore); 133 write (fdesc,&gvalue,sizeof gvalue); 134 write (fdesc,&raflag,sizeof raflag); 135 close (fdesc); 136 if (tflag) 137 curmove (18,0); 138 writel (saved); 139 writel (fname); 140 writel (type); 141 writel (fname); 142 writel (rec); 143 if (tflag) 144 clend(); 145 getout (); 146 } 147 148 int 149 recover (s) 150 const char *s; 151 152 { 153 int i; 154 int fdesc; 155 156 if ((fdesc = open (s,O_RDONLY)) == -1) 157 norec (s); 158 read (fdesc,board,sizeof board); 159 read (fdesc,off,sizeof off); 160 read (fdesc,in,sizeof in); 161 read (fdesc,dice,sizeof dice); 162 read (fdesc,&cturn,sizeof cturn); 163 read (fdesc,&dlast,sizeof dlast); 164 read (fdesc,&pnum,sizeof pnum); 165 read (fdesc,&rscore,sizeof rscore); 166 read (fdesc,&wscore,sizeof wscore); 167 read (fdesc,&gvalue,sizeof gvalue); 168 read (fdesc,&raflag,sizeof raflag); 169 close (fdesc); 170 rflag = 1; 171 } 172 173 int 174 norec (s) 175 const char *s; 176 177 { 178 const char *c; 179 180 tflag = 0; 181 writel (cantrec); 182 c = s; 183 while (*c != '\0') 184 writec (*c++); 185 getout (); 186 } 187