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annotate rogue3/save.c @ 258:2908dc47f9e2

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UltraRogue: fix crash when restoring. The r_flags field in struct room was being written as an int and read as a short. This caused the restore functions to receive the wrong data, usually an impossible string length, and abort. This breaks save compatibility, though the save files had problems anyway: the r_fires field should have been used, instead of reading and writing r_flags twice.
author John "Elwin" Edwards
date Wed, 08 Feb 2017 19:50:36 -0500
parents 3d4252fa2ed3
children
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1 /*
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2 * save and restore routines
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3 *
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4 * @(#)save.c 3.9 (Berkeley) 6/16/81
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include "curses.h"
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14 #include <ctype.h>
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15 #include <sys/types.h>
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16 #include <sys/stat.h>
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17 #include <signal.h>
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18 #include <errno.h>
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19 #include <string.h>
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20 #include <stdlib.h>
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21 #include "machdep.h"
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22 #include "rogue.h"
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23
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24 typedef struct stat STAT;
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25
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26 extern char version[], encstr[];
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27
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28 STAT sbuf;
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29
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30 int
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31 save_game()
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32 {
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33 FILE *savef;
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34 int c;
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35 char buf[80];
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36
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37 /*
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38 * get file name
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39 */
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40 mpos = 0;
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41 if (file_name[0] != '\0')
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42 {
30
09da55b986ca Slightly modify savefile location and prompt
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43 if (use_savedir)
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44 msg("Save game? ");
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45 else
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46 msg("Save file (%s)? ", file_name);
0
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47 do
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48 {
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49 c = readchar(cw);
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50 } while (c != 'n' && c != 'N' && c != 'y' && c != 'Y');
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51 mpos = 0;
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52 if (c == 'y' || c == 'Y')
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53 {
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54 msg("File name: %s", file_name);
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55 goto gotfile;
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56 }
2
e676d52b5d09 Prevent changing name or save file when using system savedir
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57 if (use_savedir)
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58 return FALSE;
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59 /* because you're not allowed to change the savefile if
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60 you're using the system savedir! */
0
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61 }
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62
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63 do
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64 {
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65 msg("File name: ");
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66 mpos = 0;
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67 buf[0] = '\0';
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68 if (get_str(buf, cw) == QUIT)
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69 {
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70 msg("");
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71 return FALSE;
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72 }
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73 strcpy(file_name, buf);
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74 gotfile:
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75 if ((savef = fopen(file_name, "w")) == NULL)
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76 {
0
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77 msg(strerror(errno)); /* fake perror() */
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78 if (use_savedir)
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79 return FALSE;
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80 }
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81 } while (savef == NULL);
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82
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83 /*
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84 * write out encrypted file (after a stat)
0
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85 * The fwrite is to force allocation of the buffer before the write
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86 */
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87 if (save_file(savef) != 0)
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88 {
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89 msg("Save game failed!");
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90 return FALSE;
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91 }
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92 return TRUE;
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93 }
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94
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95 /*
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96 * automatically save a file. This is used if a HUP signal is
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97 * recieved
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98 */
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99 void
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100 auto_save(int p)
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101 {
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102 FILE *savef;
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103 int i;
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