1 /*- 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)save.c 8.1 (Berkeley) 5/31/93 30 * $FreeBSD: src/games/battlestar/save.c,v 1.8.2.1 2001/03/05 11:45:36 kris Exp $ 31 */ 32 33 #include <sys/stat.h> 34 #include <fcntl.h> 35 #include <err.h> 36 #include "externs.h" 37 38 void 39 restore(void) 40 { 41 char *home; 42 char home1[MAXPATHLEN]; 43 int n; 44 int tmp; 45 FILE *fp; 46 47 if ((home = getenv("HOME")) != NULL) 48 sprintf(home1, "%.*s/Bstar", MAXPATHLEN - 7, home); 49 else 50 return; 51 52 if ((fp = fopen(home1, "r")) == NULL) { 53 perror(home1); 54 return; 55 } 56 fread(&WEIGHT, sizeof WEIGHT, 1, fp); 57 fread(&CUMBER, sizeof CUMBER, 1, fp); 58 fread(&gclock, sizeof gclock, 1, fp); 59 fread(&tmp, sizeof tmp, 1, fp); 60 location = tmp ? dayfile : nightfile; 61 for (n = 1; n <= NUMOFROOMS; n++) { 62 fread(location[n].link, sizeof location[n].link, 1, fp); 63 fread(location[n].objects, sizeof location[n].objects, 1, fp); 64 } 65 fread(inven, sizeof inven, 1, fp); 66 fread(wear, sizeof wear, 1, fp); 67 fread(injuries, sizeof injuries, 1, fp); 68 fread(notes, sizeof notes, 1, fp); 69 fread(&direction, sizeof direction, 1, fp); 70 fread(&position, sizeof position, 1, fp); 71 fread(>ime, sizeof gtime, 1, fp); 72 fread(&fuel, sizeof fuel, 1, fp); 73 fread(&torps, sizeof torps, 1, fp); 74 fread(&carrying, sizeof carrying, 1, fp); 75 fread(&encumber, sizeof encumber, 1, fp); 76 fread(&rythmn, sizeof rythmn, 1, fp); 77 fread(&followfight, sizeof followfight, 1, fp); 78 fread(&ate, sizeof ate, 1, fp); 79 fread(&snooze, sizeof snooze, 1, fp); 80 fread(&meetgirl, sizeof meetgirl, 1, fp); 81 fread(&followgod, sizeof followgod, 1, fp); 82 fread(&godready, sizeof godready, 1, fp); 83 fread(&bs_win, sizeof bs_win, 1, fp); 84 fread(&wintime, sizeof wintime, 1, fp); 85 fread(&matchlight, sizeof matchlight, 1, fp); 86 fread(&matchcount, sizeof matchcount, 1, fp); 87 fread(&loved, sizeof loved, 1, fp); 88 fread(&pleasure, sizeof pleasure, 1, fp); 89 fread(&power, sizeof power, 1, fp); 90 /* We must check the last read, to catch truncated save files. */ 91 if (fread(&ego, sizeof ego, 1, fp) < 1) 92 errx(1, "save file %s too short", home1); 93 fclose(fp); 94 } 95 96 void 97 save(void) 98 { 99 struct stat sbuf; 100 char *home; 101 char home1[MAXPATHLEN]; 102 int n; 103 int tmp, fd; 104 FILE *fp; 105 106 home = getenv("HOME"); 107 if (home == NULL) 108 return; 109 sprintf(home1, "%.*s/Bstar", MAXPATHLEN - 7, home); 110 111 /* Try to open the file safely. */ 112 if (stat(home1, &sbuf) < 0) { 113 fd = open(home1, O_WRONLY|O_CREAT|O_EXCL, 0600); 114 if (fd < 0) { 115 fprintf(stderr, "Can't create %s\n", home1); 116 return; 117 } 118 } else { 119 if ((sbuf.st_mode & S_IFLNK) == S_IFLNK) { 120 fprintf(stderr, "No symlinks!\n"); 121 return; 122 } 123 124 fd = open(home1, O_WRONLY|O_EXCL); 125 if (fd < 0) { 126 fprintf(stderr, "Can't open %s for writing\n", home1); 127 return; 128 } 129 } 130 131 if ((fp = fdopen(fd, "w")) == NULL) { 132 perror(home1); 133 return; 134 } 135 printf("Saved in %s.\n", home1); 136 fwrite(&WEIGHT, sizeof WEIGHT, 1, fp); 137 fwrite(&CUMBER, sizeof CUMBER, 1, fp); 138 fwrite(&gclock, sizeof gclock, 1, fp); 139 tmp = location == dayfile; 140 fwrite(&tmp, sizeof tmp, 1, fp); 141 for (n = 1; n <= NUMOFROOMS; n++) { 142 fwrite(location[n].link, sizeof location[n].link, 1, fp); 143 fwrite(location[n].objects, sizeof location[n].objects, 1, fp); 144 } 145 fwrite(inven, sizeof inven, 1, fp); 146 fwrite(wear, sizeof wear, 1, fp); 147 fwrite(injuries, sizeof injuries, 1, fp); 148 fwrite(notes, sizeof notes, 1, fp); 149 fwrite(&direction, sizeof direction, 1, fp); 150 fwrite(&position, sizeof position, 1, fp); 151 fwrite(>ime, sizeof gtime, 1, fp); 152 fwrite(&fuel, sizeof fuel, 1, fp); 153 fwrite(&torps, sizeof torps, 1, fp); 154 fwrite(&carrying, sizeof carrying, 1, fp); 155 fwrite(&encumber, sizeof encumber, 1, fp); 156 fwrite(&rythmn, sizeof rythmn, 1, fp); 157 fwrite(&followfight, sizeof followfight, 1, fp); 158 fwrite(&ate, sizeof ate, 1, fp); 159 fwrite(&snooze, sizeof snooze, 1, fp); 160 fwrite(&meetgirl, sizeof meetgirl, 1, fp); 161 fwrite(&followgod, sizeof followgod, 1, fp); 162 fwrite(&godready, sizeof godready, 1, fp); 163 fwrite(&bs_win, sizeof bs_win, 1, fp); 164 fwrite(&wintime, sizeof wintime, 1, fp); 165 fwrite(&matchlight, sizeof matchlight, 1, fp); 166 fwrite(&matchcount, sizeof matchcount, 1, fp); 167 fwrite(&loved, sizeof loved, 1, fp); 168 fwrite(&pleasure, sizeof pleasure, 1, fp); 169 fwrite(&power, sizeof power, 1, fp); 170 fwrite(&ego, sizeof ego, 1, fp); 171 } 172