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annotate urogue/options.c @ 280:70aa5808c782

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Fix potential segfaults at restore related to ctime(). In some games, restore() passes the result of ctime() to mvprintw() or some other variadic message-formatting function. If ctime() has not been declared properly, its return type is inferred to be int instead of char *. This does not cause a warning because the compiler does not know the correct type of variadic arguments. On platforms where ints and pointers are not the same size, this can, probably depending on alignment, result in a segfault that is not easy to trace. Including time.h fixes the problem. Some games manually declared ctime() and avoided the bug. These declarations have also been replaced with the include.
author John "Elwin" Edwards
date Fri, 15 Sep 2017 20:51:10 -0400
parents ac42afd962e4
children 2b452dbf0138
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1 /*
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2 options.c - This file has all the code for the option command
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3
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4 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
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5 Copyright (C) 1985, 1986, 1992, 1993, 1995 Herb Chong
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka
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10 All rights reserved.
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11
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12 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <string.h>
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20 #include <ctype.h>
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21 #include "rogue.h"
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22
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23 #define NUM_OPTS (sizeof optlist / sizeof (OPTION))
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24 #define EQSTR(a, b, c) (strncmp(a, b, c) == 0)
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25
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26 int get_restr(opt_arg *opt, WINDOW *win);
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27
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28 /* description of an option and what to do with it */
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29 static OPTION optlist[] =
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30 {
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31 {"jump","Show position only at end of run (jump): ", &jump,put_bool,get_bool},
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32 {"inven","Style of inventories (inven): ", &inv_type, put_inv, get_inv},
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33 {"askme","Ask me about unidentified things (askme): ",&askme,put_bool,get_bool},
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34 {"doorstop","Stop running when adjacent (doorstop): ",&doorstop,put_bool,get_bool},
261
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35 {"name", "Name (name): ", &whoami, put_str, get_restr},
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36 {"fruit", "Fruit (fruit): ", &fruit, put_str, get_str},
261
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37 {"file", "Save file (file): ", &file_name, put_str, get_restr},
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38 {"score", "Score file (score): ", &score_file, put_str, get_restr},
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39 {"class", "Character class (class): ",&char_type, put_abil, get_abil}
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40 };
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41
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42 /*
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43 option()
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44 print and then set options from the terminal
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45 */
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46
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47 void
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48 option(void)
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49 {
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50 OPTION *op;
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51 int retval;
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52
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53 wclear(hw);
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54 touchwin(hw);
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55
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56 /* Display current values of options */
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57
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58 for (op = optlist; op < &optlist[NUM_OPTS]; op++)
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59 {
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60 waddstr(hw, op->o_prompt);
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61 (*op->o_putfunc)(&op->o_opt, hw);
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62 waddch(hw, '\n');
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63 }
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64
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65 /* Set values */
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66
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67 wmove(hw, 0, 0);
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68
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69 for (op = optlist; op < &optlist[NUM_OPTS]; op++)
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70 {
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71 waddstr(hw, op->o_prompt);
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72
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73 retval = (*op->o_getfunc)(&op->o_opt, hw);
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74
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75 if (retval)
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76 if (retval == QUIT)
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77 break;
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78 else if (op > optlist) /* MINUS */
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79 {
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80 wmove(hw, (int)(op - optlist) - 1, 0);
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81 op -= 2;
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82 }
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83 else /* trying to back up beyond the top */
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84 {
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85 putchar('\007');
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86 wmove(hw, 0, 0);
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87 op--;
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88 }
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89 }
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90
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