1 /* $NetBSD: save.c,v 1.12 2005/07/01 06:04:54 jmc Exp $ */
2
3 /*
4 * Copyright (c) 1983, 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 8.2 (Berkeley) 4/28/95";
36 #else
37 __RCSID("$NetBSD: save.c,v 1.12 2005/07/01 06:04:54 jmc Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include "extern.h"
42
43 void
restore(const char * filename)44 restore(const char *filename)
45 {
46 int n;
47 int tmp;
48 FILE *fp;
49
50 if (filename == NULL)
51 exit(1); /* Error determining save file name. */
52 if ((fp = fopen(filename, "r")) == 0) {
53 err(1, "fopen %s", filename);
54 }
55 fread(&WEIGHT, sizeof WEIGHT, 1, fp);
56 fread(&CUMBER, sizeof CUMBER, 1, fp);
57 fread(&ourclock, sizeof ourclock, 1, fp);
58 fread(&tmp, sizeof tmp, 1, fp);
59 location = tmp ? dayfile : nightfile;
60 for (n = 1; n <= NUMOFROOMS; n++) {
61 fread(location[n].link, sizeof location[n].link, 1, fp);
62 fread(location[n].objects, sizeof location[n].objects, 1, fp);
63 }
64 fread(inven, sizeof inven, 1, fp);
65 fread(wear, sizeof wear, 1, fp);
66 fread(injuries, sizeof injuries, 1, fp);
67 fread(notes, sizeof notes, 1, fp);
68 fread(&direction, sizeof direction, 1, fp);
69 fread(&position, sizeof position, 1, fp);
70 fread(&ourtime, sizeof ourtime, 1, fp);
71 fread(&fuel, sizeof fuel, 1, fp);
72 fread(&torps, sizeof torps, 1, fp);
73 fread(&carrying, sizeof carrying, 1, fp);
74 fread(&encumber, sizeof encumber, 1, fp);
75 fread(&rythmn, sizeof rythmn, 1, fp);
76 fread(&followfight, sizeof followfight, 1, fp);
77 fread(&ate, sizeof ate, 1, fp);
78 fread(&snooze, sizeof snooze, 1, fp);
79 fread(&meetgirl, sizeof meetgirl, 1, fp);
80 fread(&followgod, sizeof followgod, 1, fp);
81 fread(&godready, sizeof godready, 1, fp);
82 fread(&win, sizeof win, 1, fp);
83 fread(&wintime, sizeof wintime, 1, fp);
84 fread(&matchlight, sizeof matchlight, 1, fp);
85 fread(&matchcount, sizeof matchcount, 1, fp);
86 fread(&loved, sizeof loved, 1, fp);
87 fread(&pleasure, sizeof pleasure, 1, fp);
88 fread(&power, sizeof power, 1, fp);
89 /* We must check the last read, to catch truncated save files */
90 if (fread(&ego, sizeof ego, 1, fp) < 1)
91 errx(1, "save file %s too short", filename);
92 fclose(fp);
93 }
94
95 void
save(const char * filename)96 save(const char *filename)
97 {
98 int n;
99 int tmp;
100 FILE *fp;
101
102 if (filename == NULL)
103 return; /* Error determining save file name. */
104 if ((fp = fopen(filename, "w")) == NULL) {
105 warn("fopen %s", filename);
106 return;
107 }
108 printf("Saved in %s.\n", filename);
109 fwrite(&WEIGHT, sizeof WEIGHT, 1, fp);
110 fwrite(&CUMBER, sizeof CUMBER, 1, fp);
111 fwrite(&ourclock, sizeof ourclock, 1, fp);
112 tmp = location == dayfile;
113 fwrite(&tmp, sizeof tmp, 1, fp);
114 for (n = 1; n <= NUMOFROOMS; n++) {
115 fwrite(location[n].link, sizeof location[n].link, 1, fp);
116 fwrite(location[n].objects, sizeof location[n].objects, 1, fp);
117 }
118 fwrite(inven, sizeof inven, 1, fp);
119 fwrite(wear, sizeof wear, 1, fp);
120 fwrite(injuries, sizeof injuries, 1, fp);
121 fwrite(notes, sizeof notes, 1, fp);
122 fwrite(&direction, sizeof direction, 1, fp);
123 fwrite(&position, sizeof position, 1, fp);
124 fwrite(&ourtime, sizeof ourtime, 1, fp);
125 fwrite(&fuel, sizeof fuel, 1, fp);
126 fwrite(&torps, sizeof torps, 1, fp);
127 fwrite(&carrying, sizeof carrying, 1, fp);
128 fwrite(&encumber, sizeof encumber, 1, fp);
129 fwrite(&rythmn, sizeof rythmn, 1, fp);
130 fwrite(&followfight, sizeof followfight, 1, fp);
131 fwrite(&ate, sizeof ate, 1, fp);
132 fwrite(&snooze, sizeof snooze, 1, fp);
133 fwrite(&meetgirl, sizeof meetgirl, 1, fp);
134 fwrite(&followgod, sizeof followgod, 1, fp);
135 fwrite(&godready, sizeof godready, 1, fp);
136 fwrite(&win, sizeof win, 1, fp);
137 fwrite(&wintime, sizeof wintime, 1, fp);
138 fwrite(&matchlight, sizeof matchlight, 1, fp);
139 fwrite(&matchcount, sizeof matchcount, 1, fp);
140 fwrite(&loved, sizeof loved, 1, fp);
141 fwrite(&pleasure, sizeof pleasure, 1, fp);
142 fwrite(&power, sizeof power, 1, fp);
143 fwrite(&ego, sizeof ego, 1, fp);
144 fflush(fp);
145 if (ferror(fp))
146 warn("fwrite %s", filename);
147 fclose(fp);
148 }
149
150 /*
151 * Given a save file name (possibly from fgetln, so without terminating NUL),
152 * determine the name of the file to be saved to by adding the HOME
153 * directory if the name does not contain a slash. Name will be allocated
154 * with malloc(3).
155 */
156 char *
save_file_name(const char * filename,size_t len)157 save_file_name(const char *filename, size_t len)
158 {
159 char *home;
160 char *newname;
161 size_t tmpl;
162
163 if (memchr(filename, '/', len)) {
164 newname = malloc(len + 1);
165 if (newname == NULL) {
166 warn(NULL);
167 return NULL;
168 }
169 memcpy(newname, filename, len);
170 newname[len] = 0;
171 } else {
172 home = getenv("HOME");
173 if (home != NULL) {
174 tmpl = strlen(home);
175 newname = malloc(tmpl + len + 2);
176 if (newname == NULL) {
177 warn(NULL);
178 return NULL;
179 }
180 memcpy(newname, home, tmpl);
181 newname[tmpl] = '/';
182 memcpy(newname + tmpl + 1, filename, len);
183 newname[tmpl + len + 1] = 0;
184 } else {
185 newname = malloc(len + 1);
186 if (newname == NULL) {
187 warn(NULL);
188 return NULL;
189 }
190 memcpy(newname, filename, len);
191 newname[len] = 0;
192 }
193 }
194 return newname;
195 }
196