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annotate xrogue/player.c @ 310:827441d05b3e

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Advanced Rogue family: fix some potential buffer overflows. Some code for determining the score file location assumed that PATH_MAX would be less than 1024, which cannot be guaranteed. Advanced Rogue 5 and 7, and XRogue, have had the buffers for the file name enlarged. UltraRogue never called the functions, so the code has been deleted instead.
author John "Elwin" Edwards
date Mon, 03 May 2021 19:05:37 -0400
parents 2236ef808bcb
children
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1 /*
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2 player.c - functions for dealing with special player abilities
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3
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4 XRogue: Expeditions into the Dungeons of Doom
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5 Copyright (C) 1991 Robert Pietkivitch
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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 and AT&T
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10 All rights reserved.
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11
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12 See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include <ctype.h>
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16 #include <string.h>
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17 #include <curses.h>
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18 #include "rogue.h"
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19
220
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20 bool pick_spell(struct spells spells[], int ability, int num_spells, int power,
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21 const char *prompt, const char *type);
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22 /*
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23 * affect:
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24 * cleric affecting undead
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25 */
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26
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27 void
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28 affect(void)
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29 {
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30 register struct linked_list *item;
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31 register struct thing *tp;
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32 register char *mname;
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33 bool see;
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34 coord new_pos;
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35 int lvl;
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36
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37 if (!(player.t_ctype == C_CLERIC ||
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38 (player.t_ctype == C_PALADIN && pstats.s_lvl > 4) ||
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39 cur_relic[HEIL_ANKH] != 0)) {
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40 msg("You cannot affect undead.");
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41 return;
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42 }
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43
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44 new_pos.y = hero.y + player.t_newpos.y;
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45 new_pos.x = hero.x + player.t_newpos.x;
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46
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47 if (cansee(new_pos.y, new_pos.x)) see = TRUE;
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48 else see = FALSE;
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49
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50 /* Anything there? */
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51 if (new_pos.y < 0 || new_pos.y > lines-3 ||
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52 new_pos.x < 0 || new_pos.x > cols-1 ||
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53 mvwinch(mw, new_pos.y, new_pos.x) == ' ') {
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54 msg("Nothing to affect.");
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55 return;
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56 }
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57
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58 if ((item = find_mons(new_pos.y, new_pos.x)) == 0) {
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59 debug("Affect what @ %d,%d?", new_pos.y, new_pos.x);
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60 return;
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61 }
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62 tp = THINGPTR(item);
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63 mname = monster_name(tp);
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64
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65 if (on(player, ISINVIS) && off(*tp, CANSEE)) {
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66 msg("%s%s cannot see you", see ? "The " : "It",
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67 see ? mname : "");
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68 return;
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69 }
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70
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71 if (off(*tp, TURNABLE) || on(*tp, WASTURNED))
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72 goto annoy;
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73 turn_off(*tp, TURNABLE);
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74
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75 lvl = pstats.s_lvl;
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76 if (player.t_ctype == C_PALADIN && cur_relic[HEIL_ANKH] == 0) {
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77 lvl -= 4;
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78 }
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79 /* Can cleric kill it? */
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80 if (lvl >= 3 * tp->t_stats.s_lvl) {
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81 unsigned long test; /* For overflow check */
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82
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83 msg("You have destroyed %s%s.", see ? "the " : "it", see ? mname : "");
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84 test = pstats.s_exp + tp->t_stats.s_exp;
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85
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86 /* Be sure there is no overflow before increasing experience */
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87 if (test > pstats.s_exp) pstats.s_exp = test;
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88 killed(item, FALSE, TRUE, TRUE);
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89 check_level();
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90 return;
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91 }
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