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annotate arogue5/options.c @ 83:09db0cf536af

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Properly handle invalid room references in savefiles. In all games, rs_write_room_reference() stored -1 for a nonexistent room, but rs_read_room_reference() did not check for out-of-bounds values, leading to pointers to rooms[-1], which sometimes caused crashes. rs_read_room_reference() has now been modified to use NULL instead. Some of the games required further changes to replace NULL with the pointer to the actual room. Others are capable of handling NULL for objects not in any room.
author John "Elwin" Edwards
date Thu, 08 Aug 2013 12:41:35 -0700
parents c49f7927b0fa
children d4bf99f82ea0
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1 /*
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2 * This file has all the code for the option command.
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3 * I would rather this command were not necessary, but
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4 * it is the only way to keep the wolves off of my back.
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5 *
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6 * Advanced Rogue
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7 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include "curses.h"
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18 #include <ctype.h>
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19 #include <string.h>
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20 #include "rogue.h"
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21
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22 #define NUM_OPTS (sizeof optlist / sizeof (OPTION))
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23
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24
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25 /*
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26 * description of an option and what to do with it
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27 */
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28 struct optstruct {
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29 char *o_name; /* option name */
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30 char *o_prompt; /* prompt for interactive entry */
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31 int *o_opt; /* pointer to thing to set */
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32 int (*o_putfunc)(); /* function to print value */
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33 int (*o_getfunc)(); /* function to get value interactively */
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34 };
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35
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36 typedef struct optstruct OPTION;
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37
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38 int put_bool(),
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39 get_bool(),
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40 put_str(),
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41 get_str(),
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42 get_restr(),
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43 put_abil(),
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44 get_abil(),
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45 get_quest(),
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46 put_quest();
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47
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48 OPTION optlist[] = {
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49 {"terse", "Terse output: ",
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50 (int *) &terse, put_bool, get_bool },
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51 {"flush", "Flush typeahead during battle: ",
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52 (int *) &fight_flush, put_bool, get_bool },
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53 {"jump", "Show position only at end of run: ",
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54 (int *) &jump, put_bool, get_bool },
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55 {"step", "Do inventories one line at a time: ",
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56 (int *) &slow_invent, put_bool, get_bool },
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57 {"askme", "Ask me about unidentified things: ",
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58 (int *) &askme, put_bool, get_bool },
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59 {"pickup", "Pick things up automatically: ",
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60 (int *) &auto_pickup, put_bool, get_bool },
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61 {"name", "Name: ",
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62 (int *) whoami, put_str, get_restr },
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63 {"fruit", "Fruit: ",
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64 (int *) fruit, put_str, get_str },
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65 {"file", "Save file: ",
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66 (int *) file_name, put_str, get_restr },
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67 {"score", "Score file: ",
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68 (int *) score_file, put_str, get_restr },
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69 {"class", "Character class: ",
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70 (int *)&char_type, put_abil, get_abil },
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71 {"quest", "Quest item: ",
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72 (int *) &quest_item, put_quest, get_quest }
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73 };
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74
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75 /* For fields that would be restricted if use_savedir is set. */
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76 int get_restr(char *optstr, WINDOW *win)
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77 {
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78 int oy, ox;
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79
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80 if (use_savedir)
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81 {
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82 getyx(win, oy, ox);
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83 put_str(optstr, win);
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84 return get_ro(win, oy, ox);
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85 }
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86 else
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87 return get_str(optstr, win);
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88 }
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89
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90 /*
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91 * The ability field is read-only
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92 */
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93 get_abil(abil, win)
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94 int *abil;
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95 WINDOW *win;
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96 {
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97 register int oy, ox;
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98
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99 getyx(win, oy, ox);
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100 put_abil(abil, win);
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