1 /* $OpenBSD: save.c,v 1.14 2015/11/30 08:19:25 tb 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 <ctype.h> 33 #include <limits.h> 34 #include <errno.h> 35 #include "back.h" 36 37 static const char confirm[] = "Are you sure you want to leave now?"; 38 static const char prompt[] = "Enter a file name: "; 39 static const char exist1[] = "The file '"; 40 static const char exist2[] = 41 "' already exists.\nAre you sure you want to use this file?"; 42 static const char cantuse[] = "\nCan't use "; 43 static const char saved[] = "This game has been saved on the file '"; 44 static const char type[] = "'.\nType \"backgammon -s "; 45 static const char rec[] = "\" to recover your game.\n\n"; 46 static const char cantrec[] = "Can't recover file: "; 47 48 void 49 save(int n) 50 { 51 int fdesc; 52 char *fs; 53 char fname[PATH_MAX]; 54 int r, c, i; 55 56 if (n) { 57 move(20, 0); 58 clrtobot(); 59 addstr(confirm); 60 if (!yorn(0)) 61 return; 62 } 63 cflag = 1; 64 for (;;) { 65 addstr(prompt); 66 fs = fname; 67 while ((i = readc()) != '\n') { 68 if (i == KEY_BACKSPACE || i == 0177) { 69 if (fs > fname) { 70 fs--; 71 getyx(stdscr, r, c); 72 move(r, c - 1); 73 } else 74 beep(); 75 continue; 76 } 77 if (fs - fname < sizeof(fname) - 1) { 78 if (isascii(i)) { 79 *fs = i; 80 addch(*fs++); 81 } else 82 beep(); 83 } else 84 beep(); 85 } 86 *fs = '\0'; 87 if ((fdesc = open(fname, O_RDWR)) == -1 && errno == ENOENT) { 88 if ((fdesc = open(fname, 89 O_CREAT | O_TRUNC | O_WRONLY, 90 0600)) != -1) 91 break; 92 } 93 if (fdesc != -1) { 94 move(18, 0); 95 clrtobot(); 96 printw("%s%s%s", exist1, fname, exist2); 97 cflag = 0; 98 close(fdesc); 99 if (yorn(0)) { 100 unlink(fname); 101 fdesc = open(fname, 102 O_CREAT | O_TRUNC | O_WRONLY, 103 0600); 104 break; 105 } else { 106 cflag = 1; 107 continue; 108 } 109 } 110 printw("%s%s.\n", cantuse, fname); 111 cflag = 1; 112 } 113 write(fdesc, board, sizeof(board)); 114 write(fdesc, off, sizeof(off)); 115 write(fdesc, in, sizeof(in)); 116 write(fdesc, dice, sizeof(dice)); 117 write(fdesc, &cturn, sizeof(cturn)); 118 write(fdesc, &dflag, sizeof(dflag)); 119 write(fdesc, &dlast, sizeof(dlast)); 120 write(fdesc, &pnum, sizeof(pnum)); 121 write(fdesc, &rscore, sizeof(rscore)); 122 write(fdesc, &wscore, sizeof(wscore)); 123 write(fdesc, &gvalue, sizeof(gvalue)); 124 write(fdesc, &raflag, sizeof(raflag)); 125 close(fdesc); 126 move(18, 0); 127 printw("%s%s%s%s%s", saved, fname, type, fname, rec); 128 clrtobot(); 129 getout(0); 130 } 131 132 void 133 recover(const char *s) 134 { 135 int fdesc; 136 137 if ((fdesc = open(s, O_RDONLY)) == -1) 138 norec(s); 139 read(fdesc, board, sizeof(board)); 140 read(fdesc, off, sizeof(off)); 141 read(fdesc, in, sizeof(in)); 142 read(fdesc, dice, sizeof(dice)); 143 read(fdesc, &cturn, sizeof(cturn)); 144 read(fdesc, &dflag, sizeof(dflag)); 145 read(fdesc, &dlast, sizeof(dlast)); 146 read(fdesc, &pnum, sizeof(pnum)); 147 read(fdesc, &rscore, sizeof(rscore)); 148 read(fdesc, &wscore, sizeof(wscore)); 149 read(fdesc, &gvalue, sizeof(gvalue)); 150 read(fdesc, &raflag, sizeof(raflag)); 151 close(fdesc); 152 rflag = 1; 153 } 154 155 void 156 norec(const char *s) 157 { 158 const char *c; 159 160 addstr(cantrec); 161 c = s; 162 while (*c != '\0') 163 addch(*c++); 164 getout(0); 165 } 166