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annotate srogue/armor.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 2128c7dc8a40
children 94a0d9dd5ce1
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1 /*
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2 * This file contains misc functions for dealing with armor
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3 *
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4 * @(#)armor.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include "rogue.h"
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18 #include "rogue.ext"
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19
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20 /*
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21 * wear:
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22 * The player wants to wear something, so let the hero try
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23 */
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24 wear()
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25 {
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26 reg struct linked_list *item;
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27 reg struct object *obj;
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28
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29 if (cur_armor != NULL) {
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30 msg("You are already wearing some.");
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31 after = FALSE;
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32 return;
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33 }
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34 if ((item = get_item("wear", ARMOR)) == NULL)
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35 return;
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36 obj = OBJPTR(item);
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37 if (obj->o_type != ARMOR) {
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38 msg("You can't wear that.");
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39 return;
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40 }
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41 waste_time();
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42 msg("Wearing %s.", a_magic[obj->o_which].mi_name);
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43 cur_armor = obj;
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44 setoflg(obj,ISKNOW);
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45 nochange = FALSE;
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46 }
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47
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