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annotate arogue5/options.c @ 144:708bb2dea17c

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arogue7, xrogue: prevent potential NULL dereferencing. It is possible for getpwuid() to fail and return NULL. Various md_get* functions now check for this.
author John "Elwin" Edwards
date Mon, 18 May 2015 10:53:22 -0400
parents d4bf99f82ea0
children aac28331e71d
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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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101 get_ro(win, oy, ox);