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annotate xrogue/util.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 e52a8a7ad4c5
children
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1 /*
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2 util.c - all sorts of miscellaneous routines
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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 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 <curses.h>
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20 #include <ctype.h>
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21 #include <string.h>
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22 #include "rogue.h"
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23
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24 /*
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25 * this routine computes the players current AC without dex bonus's
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26 */
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27
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28 int
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29 ac_compute(bool ignoremetal)
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30 {
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31 register int ac;
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32
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33 ac = pstats.s_arm; /* base armor of "skin" */
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34 if (cur_armor) {
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35 if (!ignoremetal ||
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36 (cur_armor->o_which != LEATHER &&
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37 cur_armor->o_which != STUDDED_LEATHER &&
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38 cur_armor->o_which != PADDED_ARMOR))
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39 ac -= (10 - cur_armor->o_ac);
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40 }
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41 if (player.t_ctype == C_MONK)
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42 ac -= pstats.s_lvl * 3 / 5;
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43 ac -= ring_value(R_PROTECT);
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44 if (cur_misc[WEAR_BRACERS] != NULL)
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45 ac -= cur_misc[WEAR_BRACERS]->o_ac;
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46 if (cur_misc[WEAR_CLOAK] != NULL)
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47 ac -= cur_misc[WEAR_CLOAK]->o_ac;
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48
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49 /* If player has the cloak, must be wearing it */
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50 if (cur_relic[EMORI_CLOAK]) ac -= 15;
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51
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52 if (ac > 25)
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53 ac = 25;
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54 return(ac);
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55 }
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56
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57 /*
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58 * aggravate:
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59 * aggravate all the monsters on this level
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60 */
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61
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62 void
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63 aggravate(bool do_uniques, bool do_good)
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64 {
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65 register struct linked_list *mi;
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66 register struct thing *thingptr;
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67
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68 for (mi = mlist; mi != NULL; mi = next(mi)) {
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69 thingptr = THINGPTR(mi);
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70 if (do_good == FALSE && off(*thingptr, ISMEAN)) continue;
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71 if (do_uniques || off(*thingptr, ISUNIQUE)) runto(thingptr, &hero);
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72 }
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73 }
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74
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75 /*
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76 * cansee:
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77 * returns true if the hero can see a certain coordinate.
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78 */
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79
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80 bool
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81 cansee(int y, int x)
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82 {
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83 register struct room *rer;
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84 register int radius;
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85 coord tp;
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86
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87 if (on(player, ISBLIND))
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88 return FALSE;
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89
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90 tp.y = y;
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91 tp.x = x;
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92 rer = roomin(&tp);
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