Mercurial > hg > early-roguelike
annotate rogue5/things.c @ 280:70aa5808c782
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 |
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date | Fri, 15 Sep 2017 20:51:10 -0400 |
parents | ded75a57405c |
children |
rev | line source |
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33
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1 /* |
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2 * Contains functions for dealing with things like potions, scrolls, |
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3 * and other items. |
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4 * |
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5 * @(#)things.c 4.53 (Berkeley) 02/05/99 |
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6 * |
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7 * Rogue: Exploring the Dungeons of Doom |
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8 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman |
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9 * All rights reserved. |
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10 * |
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11 * See the file LICENSE.TXT for full copyright and licensing information. |
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12 */ |
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13 |
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14 #include <stdlib.h> |
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15 #include <curses.h> |
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16 #include <string.h> |
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17 #include <ctype.h> |
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18 #include "rogue.h" |
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19 |
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20 /* |
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21 * inv_name: |
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22 * Return the name of something as it would appear in an |
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23 * inventory. |
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24 */ |
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25 char * |
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26 inv_name(const THING *obj, int drop) |
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27 { |
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28 char *pb; |
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29 struct obj_info *op; |
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30 const char *sp; |
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31 int which; |
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32 |
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33 pb = prbuf; |
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34 which = obj->o_which; |
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35 switch (obj->o_type) |
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36 { |
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37 case POTION: |
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38 nameit(obj, "potion", p_colors[which], &pot_info[which], nullstr); |
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39 when RING: |
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40 nameit(obj, "ring", r_stones[which], &ring_info[which], ring_num); |
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41 when STICK: |
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42 nameit(obj, ws_type[which], ws_made[which], &ws_info[which], charge_str); |
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43 when SCROLL: |
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44 if (obj->o_count == 1) |
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45 { |
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46 strcpy(pb, "A scroll "); |
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47 pb = &prbuf[9]; |
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48 } |
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49 else |
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50 { |
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51 sprintf(pb, "%d scrolls ", obj->o_count); |
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52 pb = &prbuf[strlen(prbuf)]; |
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53 } |
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54 op = &scr_info[which]; |
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55 if (op->oi_know) |
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56 sprintf(pb, "of %s", op->oi_name); |
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57 else if (op->oi_guess) |
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58 sprintf(pb, "called %s", op->oi_guess); |
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59 else |
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60 sprintf(pb, "titled '%s'", s_names[which]); |
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61 when FOOD: |
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62 if (which == 1) |
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63 if (obj->o_count == 1) |
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64 sprintf(pb, "A%s %s", vowelstr(fruit), fruit); |
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65 else |
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66 sprintf(pb, "%d %ss", obj->o_count, fruit); |
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67 else |
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68 if (obj->o_count == 1) |
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69 strcpy(pb, "Some food"); |
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70 else |
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71 sprintf(pb, "%d rations of food", obj->o_count); |
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72 when WEAPON: |
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73 sp = weap_info[which].oi_name; |
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74 if (obj->o_count > 1) |
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75 sprintf(pb, "%d ", obj->o_count); |
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76 else |
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77 sprintf(pb, "A%s ", vowelstr(sp)); |
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78 pb = &prbuf[strlen(prbuf)]; |
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79 if (obj->o_flags & ISKNOW) |
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80 sprintf(pb, "%s %s", num(obj->o_hplus,obj->o_dplus,WEAPON), sp); |
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81 else |
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82 sprintf(pb, "%s", sp); |
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83 if (obj->o_count > 1) |
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84 strcat(pb, "s"); |
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85 if (obj->o_label != NULL) |
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86 { |
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87 pb = &prbuf[strlen(prbuf)]; |
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88 sprintf(pb, " called %s", obj->o_label); |
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89 } |
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90 when ARMOR: |
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91 sp = arm_info[which].oi_name; |
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92 if (obj->o_flags & ISKNOW) |
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93 { |
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94 sprintf(pb, "%s %s [", |
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95 num(a_class[which] - obj->o_arm, 0, ARMOR), sp); |
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96 if (!terse) |
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97 strcat(pb, "protection "); |
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98 pb = &prbuf[strlen(prbuf)]; |
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99 sprintf(pb, "%d]", 10 - obj->o_arm); |
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100 } |
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101 else |
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102 sprintf(pb, "%s", sp); |
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103 if (obj->o_label != NULL) |
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104 { |
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105 pb = &prbuf[strlen(prbuf)]; |
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106 sprintf(pb, " called %s", obj->o_label); |