1 /* $OpenBSD: save.c,v 1.14 2022/08/08 17:57:05 op Exp $ */
2 /* $NetBSD: save.c,v 1.3 1995/03/21 15:07:57 cgd 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 <err.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37
38 #include "extern.h"
39
40 void
restore(const char * filename)41 restore(const char *filename)
42 {
43 int n;
44 int tmp;
45 FILE *fp;
46
47 if (filename == NULL)
48 exit(1); /* Error determining save file name. */
49 if ((fp = fopen(filename, "r")) == NULL)
50 err(1, "can't open %s for reading", filename);
51 fread(&WEIGHT, sizeof WEIGHT, 1, fp);
52 fread(&CUMBER, sizeof CUMBER, 1, fp);
53 fread(&ourclock, sizeof ourclock, 1, fp);
54 fread(&tmp, sizeof tmp, 1, fp);
55 location = tmp ? dayfile : nightfile;
56 for (n = 1; n <= NUMOFROOMS; n++) {
57 fread(location[n].link, sizeof location[n].link, 1, fp);
58 fread(location[n].objects, sizeof location[n].objects, 1, fp);
59 }
60 fread(inven, sizeof inven, 1, fp);
61 fread(wear, sizeof wear, 1, fp);
62 fread(injuries, sizeof injuries, 1, fp);
63 fread(notes, sizeof notes, 1, fp);
64 fread(&direction, sizeof direction, 1, fp);
65 fread(&position, sizeof position, 1, fp);
66 fread(&ourtime, sizeof ourtime, 1, fp);
67 fread(&fuel, sizeof fuel, 1, fp);
68 fread(&torps, sizeof torps, 1, fp);
69 fread(&carrying, sizeof carrying, 1, fp);
70 fread(&encumber, sizeof encumber, 1, fp);
71 fread(&rythmn, sizeof rythmn, 1, fp);
72 fread(&followfight, sizeof followfight, 1, fp);
73 fread(&ate, sizeof ate, 1, fp);
74 fread(&snooze, sizeof snooze, 1, fp);
75 fread(&meetgirl, sizeof meetgirl, 1, fp);
76 fread(&followgod, sizeof followgod, 1, fp);
77 fread(&godready, sizeof godready, 1, fp);
78 fread(&win, sizeof win, 1, fp);
79 fread(&wintime, sizeof wintime, 1, fp);
80 fread(&matchlight, sizeof matchlight, 1, fp);
81 fread(&matchcount, sizeof matchcount, 1, fp);
82 fread(&loved, sizeof loved, 1, fp);
83 fread(&pleasure, sizeof pleasure, 1, fp);
84 fread(&power, sizeof power, 1, fp);
85 /* Check the final read in case file was truncated */
86 if (fread(&ego, sizeof ego, 1, fp) < 1)
87 errx(1, "save file %s is truncated", filename);
88 fclose(fp);
89 }
90
91 void
save(const char * filename)92 save(const char *filename)
93 {
94 int n;
95 int tmp;
96 FILE *fp;
97
98 if (filename == NULL)
99 return; /* Error determining save file name. */
100 if ((fp = fopen(filename, "w")) == NULL) {
101 warn("can't open %s for writing", filename);
102 return;
103 }
104 fwrite(&WEIGHT, sizeof WEIGHT, 1, fp);
105 fwrite(&CUMBER, sizeof CUMBER, 1, fp);
106 fwrite(&ourclock, sizeof ourclock, 1, fp);
107 tmp = location == dayfile;
108 fwrite(&tmp, sizeof tmp, 1, fp);
109 for (n = 1; n <= NUMOFROOMS; n++) {
110 fwrite(location[n].link, sizeof location[n].link, 1, fp);
111 fwrite(location[n].objects, sizeof location[n].objects, 1, fp);
112 }
113 fwrite(inven, sizeof inven, 1, fp);
114 fwrite(wear, sizeof wear, 1, fp);
115 fwrite(injuries, sizeof injuries, 1, fp);
116 fwrite(notes, sizeof notes, 1, fp);
117 fwrite(&direction, sizeof direction, 1, fp);
118 fwrite(&position, sizeof position, 1, fp);
119 fwrite(&ourtime, sizeof ourtime, 1, fp);
120 fwrite(&fuel, sizeof fuel, 1, fp);
121 fwrite(&torps, sizeof torps, 1, fp);
122 fwrite(&carrying, sizeof carrying, 1, fp);
123 fwrite(&encumber, sizeof encumber, 1, fp);
124 fwrite(&rythmn, sizeof rythmn, 1, fp);
125 fwrite(&followfight, sizeof followfight, 1, fp);
126 fwrite(&ate, sizeof ate, 1, fp);
127 fwrite(&snooze, sizeof snooze, 1, fp);
128 fwrite(&meetgirl, sizeof meetgirl, 1, fp);
129 fwrite(&followgod, sizeof followgod, 1, fp);
130 fwrite(&godready, sizeof godready, 1, fp);
131 fwrite(&win, sizeof win, 1, fp);
132 fwrite(&wintime, sizeof wintime, 1, fp);
133 fwrite(&matchlight, sizeof matchlight, 1, fp);
134 fwrite(&matchcount, sizeof matchcount, 1, fp);
135 fwrite(&loved, sizeof loved, 1, fp);
136 fwrite(&pleasure, sizeof pleasure, 1, fp);
137 fwrite(&power, sizeof power, 1, fp);
138 fwrite(&ego, sizeof ego, 1, fp);
139 fflush(fp);
140 if (ferror(fp))
141 warn("fwrite %s", filename);
142 else
143 printf("Saved in %s.\n", filename);
144 fclose(fp);
145 }
146
147 /*
148 * Given a save file name determine the name of the file to be saved
149 * to by adding the HOME directory if the name does not contain a
150 * slash. Name will be allocated with malloc(3).
151 */
152 char *
save_file_name(const char * filename)153 save_file_name(const char *filename)
154 {
155 char *home;
156 char *newname;
157
158 home = getenv("HOME");
159 if (strchr(filename, '/') != NULL || home == NULL) {
160 if ((newname = strdup(filename)) == NULL)
161 warnx("out of memory");
162 return(newname);
163 }
164
165 if (asprintf(&newname, "%s/%s", home, filename) == -1) {
166 warnx("out of memory");
167 return(NULL);
168 }
169 return(newname);
170 }
171