1 /* $OpenBSD: save.c,v 1.13 2015/12/31 17:51:19 mestre 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 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 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 (possibly from fgetln, so without terminating NUL), 149 * determine the name of the file to be saved to by adding the HOME 150 * directory if the name does not contain a slash. Name will be allocated 151 * with malloc(3). 152 */ 153 char * 154 save_file_name(const char *filename, size_t len) 155 { 156 char *home; 157 char *newname; 158 size_t tmpl; 159 160 if (memchr(filename, '/', len)) { 161 if ((newname = malloc(len + 1)) == NULL) { 162 warnx("out of memory"); 163 return NULL; 164 } 165 memcpy(newname, filename, len); 166 newname[len] = 0; 167 } else { 168 if ((home = getenv("HOME")) != NULL) { 169 tmpl = strlen(home); 170 if ((newname = malloc(tmpl + len + 2)) == NULL) { 171 warnx("out of memory"); 172 return NULL; 173 } 174 memcpy(newname, home, tmpl); 175 newname[tmpl] = '/'; 176 memcpy(newname + tmpl + 1, filename, len); 177 newname[tmpl + len + 1] = 0; 178 } else { 179 if ((newname = malloc(len + 1)) == NULL) { 180 warnx("out of memory"); 181 return NULL; 182 } 183 memcpy(newname, filename, len); 184 newname[len] = 0; 185 } 186 } 187 return(newname); 188 } 189