1 /* $NetBSD: save.c,v 1.16 2012/10/13 19:19:39 dholland 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 <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)save.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: save.c,v 1.16 2012/10/13 19:19:39 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <errno.h>
42
43 #include "back.h"
44
45 static const char confirm[] = "Are you sure you want to leave now?";
46 static const char prompt[] = "Enter a file name: ";
47 static const char exist1[] = "The file '";
48 static const char exist2[] =
49 "' already exists.\nAre you sure you want to use this file?";
50 static const char cantuse[] = "\nCan't use ";
51 static const char saved[] = "This game has been saved on the file '";
52 static const char type[] = "'.\nType \"backgammon ";
53 static const char rec[] = "\" to recover your game.\n\n";
54 static const char cantrec[] = "Can't recover file: ";
55
56 static void norec(const char *) __dead;
57
58 void
save(struct move * mm,int n)59 save(struct move *mm, int n)
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 == old.c_cc[VERASE]) {
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, 0600);
112 break;
113 } else {
114 cflag = 1;
115 continue;
116 }
117 }
118 writel(cantuse);
119 writel(fname);
120 writel(".\n");
121 cflag = 1;
122 }
123 write(fdesc, board, sizeof board);
124 write(fdesc, off, sizeof off);
125 write(fdesc, in, sizeof in);
126 write(fdesc, mm->dice, sizeof mm->dice);
127 write(fdesc, &cturn, sizeof cturn);
128 write(fdesc, &dlast, sizeof dlast);
129 write(fdesc, &pnum, sizeof pnum);
130 write(fdesc, &rscore, sizeof rscore);
131 write(fdesc, &wscore, sizeof wscore);
132 write(fdesc, &gvalue, sizeof gvalue);
133 write(fdesc, &raflag, sizeof raflag);
134 close(fdesc);
135 if (tflag)
136 curmove(18, 0);
137 writel(saved);
138 writel(fname);
139 writel(type);
140 writel(fname);
141 writel(rec);
142 if (tflag)
143 clend();
144 getout(0);
145 }
146
147 void
recover(struct move * mm,const char * s)148 recover(struct move *mm, const char *s)
149 {
150 int fdesc;
151
152 if ((fdesc = open(s, O_RDONLY)) == -1)
153 norec(s);
154 read(fdesc, board, sizeof board);
155 read(fdesc, off, sizeof off);
156 read(fdesc, in, sizeof in);
157 read(fdesc, mm->dice, sizeof mm->dice);
158 read(fdesc, &cturn, sizeof cturn);
159 read(fdesc, &dlast, sizeof dlast);
160 read(fdesc, &pnum, sizeof pnum);
161 read(fdesc, &rscore, sizeof rscore);
162 read(fdesc, &wscore, sizeof wscore);
163 read(fdesc, &gvalue, sizeof gvalue);
164 read(fdesc, &raflag, sizeof raflag);
165 close(fdesc);
166 rflag = 1;
167 }
168
169 static void
norec(const char * s)170 norec(const char *s)
171 {
172 const char *c;
173
174 tflag = 0;
175 writel(cantrec);
176 c = s;
177 while (*c != '\0')
178 writec(*c++);
179 getout(0);
180 }
181