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annotate rogue4/monsters.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 9535a08ddc39
children 1b73a8641b37
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12
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1 /*
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2 * File with various monster functions in it
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3 *
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4 * @(#)monsters.c 4.24 (Berkeley) 4/6/82
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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, 1982 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 <string.h>
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15 #include <ctype.h>
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16 #include "rogue.h"
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17
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18 /*
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19 * List of monsters in rough order of vorpalness
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20 *
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21 * NOTE: This not initialized using strings so that xstr doesn't set up
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22 * the string not to be saved. Otherwise genocide is lost through
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23 * saving a game.
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24 */
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25 char lvl_mons[] = {
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26 'K', 'J', 'B', 'S', 'H', 'E', 'A', 'O', 'Z', 'G', 'L', 'C', 'R',
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27 'Q', 'N', 'Y', 'T', 'W', 'F', 'I', 'X', 'U', 'M', 'V', 'P', 'D',
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28 '\0'
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29 };
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30
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31 char wand_mons[] = {
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32 'K', 'J', 'B', 'S', 'H', ' ', 'A', 'O', 'Z', 'G', ' ', 'C', 'R',
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33 'Q', ' ', 'Y', 'T', 'W', ' ', 'I', 'X', 'U', ' ', 'V', 'P', ' ',
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34 '\0'
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35 };
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36
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37 /*
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38 * randmonster:
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39 * Pick a monster to show up. The lower the level,
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40 * the meaner the monster.
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41 */
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42 randmonster(wander)
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43 bool wander;
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44 {
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45 register int d;
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46 register char *mons;
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47
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48 mons = wander ? wand_mons : lvl_mons;
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49 do
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50 {
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51 d = level + (rnd(10) - 5);
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52 if (d < 1)
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53 d = rnd(5) + 1;
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54 if (d > 26)
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55 d = rnd(5) + 22;
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56 } while (mons[--d] == ' ');
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57 return mons[d];
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58 }
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59
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60 /*
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61 * new_monster:
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62 * Pick a new monster and add it to the list
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63 */
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64 new_monster(tp, type, cp)
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65 register THING *tp;
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66 char type;
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67 register coord *cp;
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68 {
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69 register struct monster *mp;
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70 register int lev_add;
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71
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72 if ((lev_add = level - AMULETLEVEL) < 0)
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73 lev_add = 0;
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74 attach(mlist, tp);
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75 tp->t_type = type;
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76 tp->t_disguise = type;
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77 tp->t_pos = *cp;
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78 tp->t_oldch = mvinch(cp->y, cp->x);
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79 tp->t_room = roomin(cp);
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80 moat(cp->y, cp->x) = tp;
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81 mp = &monsters[tp->t_type-'A'];
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82 tp->t_stats.s_lvl = mp->m_stats.s_lvl + lev_add;
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83 tp->t_stats.s_maxhp = tp->t_stats.s_hpt = roll(tp->t_stats.s_lvl, 8);
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84 tp->t_stats.s_arm = mp->m_stats.s_arm - lev_add;
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85 strncpy(tp->t_stats.s_dmg,mp->m_stats.s_dmg,16);
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86 tp->t_stats.s_str = mp->m_stats.s_str;
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87 tp->t_stats.s_exp = mp->m_stats.s_exp + lev_add * 10 + exp_add(tp);
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88 tp->t_flags = mp->m_flags;
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89 tp->t_turn = TRUE;
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90 tp->t_pack = NULL;
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91 if (ISWEARING(R_AGGR))
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92 runto(cp, &hero);
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93 if (type == 'M')
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94 switch (rnd(level > 25 ? 9 : 8))
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95 {
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96 case 0: tp->t_disguise = GOLD;
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97 when 1: tp->t_disguise = POTION;
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98 when 2: tp->t_disguise = SCROLL;
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99 when 3: tp->t_disguise = STAIRS;
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100 when 4: tp->t_disguise = WEAPON;
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101 when 5: tp->t_disguise = ARMOR;
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102 when 6: tp->t_disguise = RING;
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103 when 7: tp->t_disguise = STICK;
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