1 /* @(#)save.c 8.1 (Berkeley) 5/31/93 */
2 /* $NetBSD: save.c,v 1.16 2012/10/13 19:19:39 dholland Exp $ */
3
4 /*
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <errno.h>
34
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 ";
45 static const char rec[] = "\" to recover your game.\n\n";
46 static const char cantrec[] = "Can't recover file: ";
47
48 static void norec(const char *) __dead2;
49
50 void
save(struct move * mm,int n)51 save(struct move *mm, int n)
52 {
53 int fdesc;
54 char *fs;
55 char fname[50];
56
57 if (n) {
58 if (tflag) {
59 curmove(20, 0);
60 clend();
61 } else
62 writec('\n');
63 writel(confirm);
64 if (!yorn(0))
65 return;
66 }
67 cflag = 1;
68 for (;;) {
69 writel(prompt);
70 fs = fname;
71 while ((*fs = readc()) != '\n') {
72 if (*fs == old.c_cc[VERASE]) {
73 if (fs > fname) {
74 fs--;
75 if (tflag)
76 curmove(curr, curc - 1);
77 else
78 writec(*fs);
79 } else
80 writec('\007');
81 continue;
82 }
83 writec(*fs++);
84 }
85 *fs = '\0';
86 if ((fdesc = open(fname, O_RDWR)) == -1 && errno == ENOENT) {
87 if ((fdesc = creat(fname, 0600)) != -1)
88 break;
89 }
90 if (fdesc != -1) {
91 if (tflag) {
92 curmove(18, 0);
93 clend();
94 } else
95 writec('\n');
96 writel(exist1);
97 writel(fname);
98 writel(exist2);
99 cflag = 0;
100 close(fdesc);
101 if (yorn(0)) {
102 unlink(fname);
103 fdesc = creat(fname, 0600);
104 break;
105 } else {
106 cflag = 1;
107 continue;
108 }
109 }
110 writel(cantuse);
111 writel(fname);
112 writel(".\n");
113 cflag = 1;
114 }
115 write(fdesc, board, sizeof board);
116 write(fdesc, off, sizeof off);
117 write(fdesc, in, sizeof in);
118 write(fdesc, mm->dice, sizeof mm->dice);
119 write(fdesc, &cturn, sizeof cturn);
120 write(fdesc, &dlast, sizeof dlast);
121 write(fdesc, &pnum, sizeof pnum);
122 write(fdesc, &rscore, sizeof rscore);
123 write(fdesc, &wscore, sizeof wscore);
124 write(fdesc, &gvalue, sizeof gvalue);
125 write(fdesc, &raflag, sizeof raflag);
126 close(fdesc);
127 if (tflag)
128 curmove(18, 0);
129 writel(saved);
130 writel(fname);
131 writel(type);
132 writel(fname);
133 writel(rec);
134 if (tflag)
135 clend();
136 getout(0);
137 }
138
139 void
recover(struct move * mm,const char * s)140 recover(struct move *mm, const char *s)
141 {
142 int fdesc;
143
144 if ((fdesc = open(s, O_RDONLY)) == -1)
145 norec(s);
146 read(fdesc, board, sizeof board);
147 read(fdesc, off, sizeof off);
148 read(fdesc, in, sizeof in);
149 read(fdesc, mm->dice, sizeof mm->dice);
150 read(fdesc, &cturn, sizeof cturn);
151 read(fdesc, &dlast, sizeof dlast);
152 read(fdesc, &pnum, sizeof pnum);
153 read(fdesc, &rscore, sizeof rscore);
154 read(fdesc, &wscore, sizeof wscore);
155 read(fdesc, &gvalue, sizeof gvalue);
156 read(fdesc, &raflag, sizeof raflag);
157 close(fdesc);
158 rflag = 1;
159 }
160
161 static void
norec(const char * s)162 norec(const char *s)
163 {
164 const char *c;
165
166 tflag = 0;
167 writel(cantrec);
168 c = s;
169 while (*c != '\0')
170 writec(*c++);
171 getout(0);
172 }
173