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annotate rogue3/fight.c @ 176:db1c9a21a7c3

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srogue: prevent overflowing the score file name. If SCOREFILE is not defined, roguehome() is called to find a directory for the score file. It copies up to PATH_MAX-20 bytes from an environment variable to a static buffer. Later these are strcpy()'d to scorefile, which is of size LINLEN. Unfortunately LINLEN is 80 and PATH_MAX is at least 256. On Linux, it happens to be 4096. I haven't yet managed to crash or exploit it, but there are surely no beneficial consequences, so roguehome() has been modified to check the length, and the string it returns is also checked in main().
author John "Elwin" Edwards
date Sun, 02 Aug 2015 12:14:47 -0400
parents 527e2150eaf0
children e7aab31362af
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1 /*
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2 * All the fighting gets done here
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3 *
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4 * @(#)fight.c 3.28 (Berkeley) 6/15/81
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include "curses.h"
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14 #include <ctype.h>
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15 #include <string.h>
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16 #include <stdlib.h>
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17 #include "rogue.h"
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18
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19 int e_levels[] = {
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20 10,20,40,80,160,320,640,1280,2560,5120,10240,20480,
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21 40920, 81920, 163840, 327680, 655360, 1310720, 2621440, 0 };
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22
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23 /*
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24 * fight:
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25 * The player attacks the monster.
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26 */
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27
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28 int
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29 fight(coord *mp, int mn, struct object *weap, int thrown)
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30 {
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31 struct thing *tp;
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32 struct linked_list *item;
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33 int did_hit = TRUE;
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34
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35 /*
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36 * Find the monster we want to fight
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37 */
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38 if ((item = find_mons(mp->y, mp->x)) == NULL)
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39 {
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40 debug("Fight what @ %d,%d", mp->y, mp->x);
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41 return(0);
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42 }
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43 tp = (struct thing *) ldata(item);
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44 /*
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45 * Since we are fighting, things are not quiet so no healing takes
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46 * place.
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47 */
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48 quiet = 0;
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49 runto(mp, &hero);
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50 /*
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51 * Let him know it was really a mimic (if it was one).
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52 */
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53 if (tp->t_type == 'M' && tp->t_disguise != 'M' && off(player, ISBLIND))
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54 {
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55 msg("Wait! That's a mimic!");
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56 tp->t_disguise = 'M';
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57 did_hit = thrown;
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58 }
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59 if (did_hit)
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60 {
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61 char *mname;
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62
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63 did_hit = FALSE;
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64 if (on(player, ISBLIND))
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65 mname = "it";
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66 else
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67 mname = monsters[mn-'A'].m_name;
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68 if (roll_em(&pstats, &tp->t_stats, weap, thrown))
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69 {
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70 did_hit = TRUE;
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71 if (thrown)
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72 thunk(weap, mname);
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73 else
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74 hit(NULL, mname);
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75 if (on(player, CANHUH))
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76 {
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77 msg("Your hands stop glowing red");
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78 msg("The %s appears confused.", mname);
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79 tp->t_flags |= ISHUH;
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80 player.t_flags &= ~CANHUH;
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81 }
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82 if (tp->t_stats.s_hpt <= 0)
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83 killed(item, TRUE);
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84 }
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85 else
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86 if (thrown)
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87 bounce(weap, mname);
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88 else
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89 miss(NULL, mname);
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90 }
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91 count = 0;
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92 return did_hit;
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93 }
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94
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95 /*
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96 * attack:
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97 * The monster attacks the player
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98 */
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99
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100 int
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101 attack(struct thing *mp)
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102 {
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103 char *mname;
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104
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105 /*
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