1 /* @(#)save.c 8.2 (Berkeley) 4/28/95 */
2 /* $NetBSD: save.c,v 1.12 2005/07/01 06:04:54 jmc Exp $ */
3
4 /*
5 * Copyright (c) 1983, 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 "extern.h"
34
35 void
restore(const char * filename)36 restore(const char *filename)
37 {
38 int n;
39 int tmp;
40 FILE *fp;
41
42 if (filename == NULL)
43 exit(1); /* Error determining save file name. */
44 if ((fp = fopen(filename, "r")) == 0) {
45 err(1, "fopen %s", filename);
46 }
47 fread(&WEIGHT, sizeof WEIGHT, 1, fp);
48 fread(&CUMBER, sizeof CUMBER, 1, fp);
49 fread(&ourclock, sizeof ourclock, 1, fp);
50 fread(&tmp, sizeof tmp, 1, fp);
51 location = tmp ? dayfile : nightfile;
52 for (n = 1; n <= NUMOFROOMS; n++) {
53 fread(location[n].link, sizeof location[n].link, 1, fp);
54 fread(location[n].objects, sizeof location[n].objects, 1, fp);
55 }
56 fread(inven, sizeof inven, 1, fp);
57 fread(wear, sizeof wear, 1, fp);
58 fread(injuries, sizeof injuries, 1, fp);
59 fread(notes, sizeof notes, 1, fp);
60 fread(&direction, sizeof direction, 1, fp);
61 fread(&position, sizeof position, 1, fp);
62 fread(&ourtime, sizeof ourtime, 1, fp);
63 fread(&fuel, sizeof fuel, 1, fp);
64 fread(&torps, sizeof torps, 1, fp);
65 fread(&carrying, sizeof carrying, 1, fp);
66 fread(&encumber, sizeof encumber, 1, fp);
67 fread(&rythmn, sizeof rythmn, 1, fp);
68 fread(&followfight, sizeof followfight, 1, fp);
69 fread(&ate, sizeof ate, 1, fp);
70 fread(&snooze, sizeof snooze, 1, fp);
71 fread(&meetgirl, sizeof meetgirl, 1, fp);
72 fread(&followgod, sizeof followgod, 1, fp);
73 fread(&godready, sizeof godready, 1, fp);
74 fread(&win, sizeof win, 1, fp);
75 fread(&wintime, sizeof wintime, 1, fp);
76 fread(&matchlight, sizeof matchlight, 1, fp);
77 fread(&matchcount, sizeof matchcount, 1, fp);
78 fread(&loved, sizeof loved, 1, fp);
79 fread(&pleasure, sizeof pleasure, 1, fp);
80 fread(&power, sizeof power, 1, fp);
81 /* We must check the last read, to catch truncated save files */
82 if (fread(&ego, sizeof ego, 1, fp) < 1)
83 errx(1, "save file %s too short", filename);
84 fclose(fp);
85 }
86
87 void
save(const char * filename)88 save(const char *filename)
89 {
90 int n;
91 int tmp;
92 FILE *fp;
93
94 if (filename == NULL)
95 return; /* Error determining save file name. */
96 if ((fp = fopen(filename, "w")) == NULL) {
97 warn("fopen %s", filename);
98 return;
99 }
100 printf("Saved in %s.\n", filename);
101 fwrite(&WEIGHT, sizeof WEIGHT, 1, fp);
102 fwrite(&CUMBER, sizeof CUMBER, 1, fp);
103 fwrite(&ourclock, sizeof ourclock, 1, fp);
104 tmp = location == dayfile;
105 fwrite(&tmp, sizeof tmp, 1, fp);
106 for (n = 1; n <= NUMOFROOMS; n++) {
107 fwrite(location[n].link, sizeof location[n].link, 1, fp);
108 fwrite(location[n].objects, sizeof location[n].objects, 1, fp);
109 }
110 fwrite(inven, sizeof inven, 1, fp);
111 fwrite(wear, sizeof wear, 1, fp);
112 fwrite(injuries, sizeof injuries, 1, fp);
113 fwrite(notes, sizeof notes, 1, fp);
114 fwrite(&direction, sizeof direction, 1, fp);
115 fwrite(&position, sizeof position, 1, fp);
116 fwrite(&ourtime, sizeof ourtime, 1, fp);
117 fwrite(&fuel, sizeof fuel, 1, fp);
118 fwrite(&torps, sizeof torps, 1, fp);
119 fwrite(&carrying, sizeof carrying, 1, fp);
120 fwrite(&encumber, sizeof encumber, 1, fp);
121 fwrite(&rythmn, sizeof rythmn, 1, fp);
122 fwrite(&followfight, sizeof followfight, 1, fp);
123 fwrite(&ate, sizeof ate, 1, fp);
124 fwrite(&snooze, sizeof snooze, 1, fp);
125 fwrite(&meetgirl, sizeof meetgirl, 1, fp);
126 fwrite(&followgod, sizeof followgod, 1, fp);
127 fwrite(&godready, sizeof godready, 1, fp);
128 fwrite(&win, sizeof win, 1, fp);
129 fwrite(&wintime, sizeof wintime, 1, fp);
130 fwrite(&matchlight, sizeof matchlight, 1, fp);
131 fwrite(&matchcount, sizeof matchcount, 1, fp);
132 fwrite(&loved, sizeof loved, 1, fp);
133 fwrite(&pleasure, sizeof pleasure, 1, fp);
134 fwrite(&power, sizeof power, 1, fp);
135 fwrite(&ego, sizeof ego, 1, fp);
136 fflush(fp);
137 if (ferror(fp))
138 warn("fwrite %s", filename);
139 fclose(fp);
140 }
141
142 /*
143 * Given a save file name (possibly from fgetln, so without terminating NUL),
144 * determine the name of the file to be saved to by adding the HOME
145 * directory if the name does not contain a slash. Name will be allocated
146 * with malloc(3).
147 */
148 char *
save_file_name(const char * filename,size_t len)149 save_file_name(const char *filename, size_t len)
150 {
151 char *home;
152 char *newname;
153 size_t tmpl;
154
155 if (memchr(filename, '/', len)) {
156 newname = malloc(len + 1);
157 if (newname == NULL) {
158 warn(NULL);
159 return NULL;
160 }
161 memcpy(newname, filename, len);
162 newname[len] = 0;
163 } else {
164 home = getenv("HOME");
165 if (home != NULL) {
166 tmpl = strlen(home);
167 newname = malloc(tmpl + len + 2);
168 if (newname == NULL) {
169 warn(NULL);
170 return NULL;
171 }
172 memcpy(newname, home, tmpl);
173 newname[tmpl] = '/';
174 memcpy(newname + tmpl + 1, filename, len);
175 newname[tmpl + len + 1] = 0;
176 } else {
177 newname = malloc(len + 1);
178 if (newname == NULL) {
179 warn(NULL);
180 return NULL;
181 }
182 memcpy(newname, filename, len);
183 newname[len] = 0;
184 }
185 }
186 return newname;
187 }
188