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 * $DragonFly: src/games/battlestar/save.c,v 1.3 2006/08/08 16:47:20 pavalos Exp $ 32 */ 33 34 #include <sys/stat.h> 35 #include <fcntl.h> 36 #include <err.h> 37 #include "externs.h" 38 39 void 40 restore(void) 41 { 42 char *home; 43 char home1[MAXPATHLEN]; 44 int n; 45 int tmp; 46 FILE *fp; 47 48 if ((home = getenv("HOME")) != NULL) 49 sprintf(home1, "%.*s/Bstar", MAXPATHLEN - 7, home); 50 else 51 return; 52 53 if ((fp = fopen(home1, "r")) == 0) { 54 perror(home1); 55 return; 56 } 57 fread(&WEIGHT, sizeof WEIGHT, 1, fp); 58 fread(&CUMBER, sizeof CUMBER, 1, fp); 59 fread(&gclock, sizeof gclock, 1, fp); 60 fread(&tmp, sizeof tmp, 1, fp); 61 location = tmp ? dayfile : nightfile; 62 for (n = 1; n <= NUMOFROOMS; n++) { 63 fread(location[n].link, sizeof location[n].link, 1, fp); 64 fread(location[n].objects, sizeof location[n].objects, 1, fp); 65 } 66 fread(inven, sizeof inven, 1, fp); 67 fread(wear, sizeof wear, 1, fp); 68 fread(injuries, sizeof injuries, 1, fp); 69 fread(notes, sizeof notes, 1, fp); 70 fread(&direction, sizeof direction, 1, fp); 71 fread(&position, sizeof position, 1, fp); 72 fread(>ime, sizeof gtime, 1, fp); 73 fread(&fuel, sizeof fuel, 1, fp); 74 fread(&torps, sizeof torps, 1, fp); 75 fread(&carrying, sizeof carrying, 1, fp); 76 fread(&encumber, sizeof encumber, 1, fp); 77 fread(&rythmn, sizeof rythmn, 1, fp); 78 fread(&followfight, sizeof followfight, 1, fp); 79 fread(&ate, sizeof ate, 1, fp); 80 fread(&snooze, sizeof snooze, 1, fp); 81 fread(&meetgirl, sizeof meetgirl, 1, fp); 82 fread(&followgod, sizeof followgod, 1, fp); 83 fread(&godready, sizeof godready, 1, fp); 84 fread(&bs_win, sizeof bs_win, 1, fp); 85 fread(&wintime, sizeof wintime, 1, fp); 86 fread(&matchlight, sizeof matchlight, 1, fp); 87 fread(&matchcount, sizeof matchcount, 1, fp); 88 fread(&loved, sizeof loved, 1, fp); 89 fread(&pleasure, sizeof pleasure, 1, fp); 90 fread(&power, sizeof power, 1, fp); 91 /* We must check the last read, to catch truncated save files. */ 92 if (fread(&ego, sizeof ego, 1, fp) < 1) 93 errx(1, "save file %s too short", home1); 94 fclose(fp); 95 } 96 97 void 98 save(void) 99 { 100 struct stat sbuf; 101 char *home; 102 char home1[MAXPATHLEN]; 103 int n; 104 int tmp, fd; 105 FILE *fp; 106 107 home = getenv("HOME"); 108 if (home == 0) 109 return; 110 sprintf(home1, "%.*s/Bstar", MAXPATHLEN - 7, home); 111 112 /* Try to open the file safely. */ 113 if (stat(home1, &sbuf) < 0) { 114 fd = open(home1, O_WRONLY|O_CREAT|O_EXCL, 0600); 115 if (fd < 0) { 116 fprintf(stderr, "Can't create %s\n", home1); 117 return; 118 } 119 } else { 120 if ((sbuf.st_mode & S_IFLNK) == S_IFLNK) { 121 fprintf(stderr, "No symlinks!\n"); 122 return; 123 } 124 125 fd = open(home1, O_WRONLY|O_EXCL); 126 if (fd < 0) { 127 fprintf(stderr, "Can't open %s for writing\n", home1); 128 return; 129 } 130 } 131 132 if ((fp = fdopen(fd, "w")) == 0) { 133 perror(home1); 134 return; 135 } 136 printf("Saved in %s.\n", home1); 137 fwrite(&WEIGHT, sizeof WEIGHT, 1, fp); 138 fwrite(&CUMBER, sizeof CUMBER, 1, fp); 139 fwrite(&gclock, sizeof gclock, 1, fp); 140 tmp = location == dayfile; 141 fwrite(&tmp, sizeof tmp, 1, fp); 142 for (n = 1; n <= NUMOFROOMS; n++) { 143 fwrite(location[n].link, sizeof location[n].link, 1, fp); 144 fwrite(location[n].objects, sizeof location[n].objects, 1, fp); 145 } 146 fwrite(inven, sizeof inven, 1, fp); 147 fwrite(wear, sizeof wear, 1, fp); 148 fwrite(injuries, sizeof injuries, 1, fp); 149 fwrite(notes, sizeof notes, 1, fp); 150 fwrite(&direction, sizeof direction, 1, fp); 151 fwrite(&position, sizeof position, 1, fp); 152 fwrite(>ime, sizeof gtime, 1, fp); 153 fwrite(&fuel, sizeof fuel, 1, fp); 154 fwrite(&torps, sizeof torps, 1, fp); 155 fwrite(&carrying, sizeof carrying, 1, fp); 156 fwrite(&encumber, sizeof encumber, 1, fp); 157 fwrite(&rythmn, sizeof rythmn, 1, fp); 158 fwrite(&followfight, sizeof followfight, 1, fp); 159 fwrite(&ate, sizeof ate, 1, fp); 160 fwrite(&snooze, sizeof snooze, 1, fp); 161 fwrite(&meetgirl, sizeof meetgirl, 1, fp); 162 fwrite(&followgod, sizeof followgod, 1, fp); 163 fwrite(&godready, sizeof godready, 1, fp); 164 fwrite(&bs_win, sizeof bs_win, 1, fp); 165 fwrite(&wintime, sizeof wintime, 1, fp); 166 fwrite(&matchlight, sizeof matchlight, 1, fp); 167 fwrite(&matchcount, sizeof matchcount, 1, fp); 168 fwrite(&loved, sizeof loved, 1, fp); 169 fwrite(&pleasure, sizeof pleasure, 1, fp); 170 fwrite(&power, sizeof power, 1, fp); 171 fwrite(&ego, sizeof ego, 1, fp); 172 } 173