Mercurial > hg > early-roguelike
annotate srogue/pack.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 | 94a0d9dd5ce1 |
children |
rev | line source |
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36
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1 /* |
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2 * Routines to deal with the pack |
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3 * |
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4 * @(#)pack.c 9.0 (rdk) 7/17/84 |
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5 * |
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6 * Super-Rogue |
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7 * Copyright (C) 1984 Robert D. Kindelberger |
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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 <ctype.h> |
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18 #include "rogue.h" |
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19 #include "rogue.ext" |
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20 |
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21 /* |
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22 * add_pack: |
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23 * Pick up an object and add it to the pack. If the argument |
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24 * is non-null use it as the linked_list pointer instead of |
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25 * getting it off the ground. |
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26 */ |
217
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27 bool |
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28 add_pack(struct linked_list *item, bool silent) |
36
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29 { |
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30 reg struct linked_list *ip, *lp; |
183 | 31 reg struct object *obj, *op = NULL; |
36
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32 bool from_floor; |
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33 char delchar; |
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34 |
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35 if (player.t_room == NULL) |
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36 delchar = PASSAGE; |
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37 else |
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38 delchar = FLOOR; |
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39 if (item == NULL) { |
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40 from_floor = TRUE; |
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41 if ((item = find_obj(hero.y, hero.x)) == NULL) { |
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42 mpos = 0; |
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43 msg("That object must have been an illusion."); |
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44 mvaddch(hero.y, hero.x, delchar); |
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45 return FALSE; |
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46 } |
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47 /* |
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48 * Check for scare monster scrolls |
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49 */ |
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50 obj = OBJPTR(item); |
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51 if (obj->o_type == SCROLL && obj->o_which == S_SCARE) { |
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52 if (o_on(obj,ISFOUND)) { |
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53 msg("The scroll turns to dust as you pick it up."); |
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54 detach(lvl_obj, item); |
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55 discard(item); |
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56 mvaddch(hero.y, hero.x, delchar); |
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57 return FALSE; |
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58 } |
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59 } |
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60 } |
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61 else |
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62 from_floor = FALSE; |
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63 obj = OBJPTR(item); |
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64 /* |
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65 * See if this guy can carry any more weight |
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66 */ |
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67 if (itemweight(obj) + him->s_pack > him->s_carry) { |
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68 msg("You can't carry that %s.", obj->o_typname); |
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69 return FALSE; |
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70 } |
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71 /* |
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72 * Check if there is room |
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73 */ |
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74 if (packvol + obj->o_vol > V_PACK) { |
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75 msg("That %s won't fit in your pack.", obj->o_typname); |
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76 return FALSE; |
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77 } |
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78 if (from_floor) { |
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79 detach(lvl_obj, item); |
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80 mvaddch(hero.y, hero.x, delchar); |
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81 } |
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82 item->l_prev = NULL; |
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83 item->l_next = NULL; |
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84 setoflg(obj, ISFOUND); |
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85 /* |
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86 * start looking thru pack to find the start of items |
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87 * with the same type. |
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88 */ |
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89 lp = pack; |
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90 for (ip = pack; ip != NULL; ip = next(ip)) { |
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91 op = OBJPTR(ip); |
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92 /* |
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93 * If we find a matching type then quit. |
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94 */ |
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95 if (op->o_type == obj->o_type) |
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96 break; |
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97 if (next(ip) != NULL) |
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98 lp = next(lp); /* update "previous" entry */ |
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99 } |
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100 /* |
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101 * If the pack was empty, just stick the item in it. |
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102 */ |
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103 if (pack == NULL) { |
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104 pack = item; |
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105 item->l_prev = NULL; |