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annotate arogue7/eat.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 adfa37e67084
children f9ef86cf22b2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
125
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1 /*
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2 * eat.c - Functions for dealing with digestion
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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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 "curses.h"
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16 #include "rogue.h"
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17
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18 /*
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19 * eat:
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20 * He wants to eat something, so let him try
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21 */
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22
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23 eat()
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24 {
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25 register struct linked_list *item;
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26 int which;
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27 unsigned long temp;
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28
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29 if (player.t_action != C_EAT) {
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30 if ((item = get_item(pack, "eat", FOOD, FALSE, FALSE)) == NULL)
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31 return;
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32
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33 player.t_using = item; /* Remember what it is */
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34 player.t_action = C_EAT; /* We are eating */
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35 which = (OBJPTR(item))->o_which;
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36 player.t_no_move = max(foods[which].mi_food/100, 1) * movement(&player);
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37 return;
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38 }
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39
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40 /* We have waited our time, let's eat the food */
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41 item = player.t_using;
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42 player.t_using = NULL;
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43 player.t_action = A_NIL;
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44
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45 which = (OBJPTR(item))->o_which;
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46 if ((food_left += foods[which].mi_food) > STOMACHSIZE)
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47 food_left = STOMACHSIZE;
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48 del_pack(item);
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49 if (hungry_state == F_SATIATED && food_left == STOMACHSIZE && rnd(4) == 1) {
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50 pstats.s_hpt = 0;
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51 msg ("You choke on all that food and die! -- More --");
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52 wait_for(' ');
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53 death(D_FOOD_CHOKE);
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54 }
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55 if (food_left >= STOMACHSIZE-MORETIME) {
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56 hungry_state = F_SATIATED;
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57 msg ("You have trouble getting all that food down.");
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58 msg ("Your stomach feels like its about to burst!");
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59 }
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60 else {
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61 hungry_state = F_OKAY;
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62 switch (rnd(3)) {
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63 case 0: msg("My, that was a yummy %s", foods[which].mi_name);
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64 when 1: msg("Mmmm, that was a tasty %s", foods[which].mi_name);
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65 when 2: msg("Wow, that was a scrumptious %s", foods[which].mi_name);
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66 }
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67 }
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68 updpack(TRUE, &player);
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69 switch(which) {
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70 case E_WHORTLEBERRY:
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71 add_abil[A_INTELLIGENCE](1);
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72
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73 when E_SWEETSOP:
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74 add_abil[A_DEXTERITY](1);
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75
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76 when E_SOURSOP:
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77 add_abil[A_STRENGTH](1);
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78
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79 when E_SAPODILLA:
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80 add_abil[A_WISDOM](1);
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81
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82 when E_RAMBUTAN:
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83 add_abil[A_CONSTITUTION](1);
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84
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85 when E_PEACH:
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86 add_abil[A_CHARISMA](1);
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87
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88 when E_STRAWBERRY:
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89 temp = pstats.s_exp/100;
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90 pstats.s_exp += temp;
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91 if (temp > 0)
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92 msg("You feel slightly more experienced now");