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annotate rogue5/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 f502bf60e6e4
children
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33
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1 /*
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2 * This file contains misc functions for dealing with armor
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3 * @(#)armor.c 4.14 (Berkeley) 02/05/99
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4 *
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5 * Rogue: Exploring the Dungeons of Doom
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6 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
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7 * All rights reserved.
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8 *
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9 * See the file LICENSE.TXT for full copyright and licensing information.
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10 */
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11
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12 #include <curses.h>
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13 #include "rogue.h"
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14
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15 /*
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16 * wear:
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17 * The player wants to wear something, so let him/her put it on.
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18 */
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19 void
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20 wear(void)
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21 {
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22 THING *obj;
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23 char *sp;
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24
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25 if ((obj = get_item("wear", ARMOR)) == NULL)
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26 return;
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27 if (cur_armor != NULL)
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28 {
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29 addmsg("you are already wearing some");
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30 if (!terse)
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31 addmsg(". You'll have to take it off first");
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32 endmsg();
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33 after = FALSE;
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34 return;
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35 }
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36 if (obj->o_type != ARMOR)
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37 {
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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 obj->o_flags |= ISKNOW;
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43 sp = inv_name(obj, TRUE);
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44 cur_armor = obj;
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45 if (!terse)
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46 addmsg("you are now ");
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47 msg("wearing %s", sp);
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48 }
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49
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50 /*
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51 * take_off:
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52 * Get the armor off of the players back
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53 */
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54 void
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55 take_off(void)
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56 {
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57 THING *obj;
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58
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59 if ((obj = cur_armor) == NULL)
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60 {
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61 after = FALSE;
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62 if (terse)
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63 msg("not wearing armor");
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64 else
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65 msg("you aren't wearing any armor");
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66 return;
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67 }
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68 if (!dropcheck(cur_armor))
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69 return;
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70 cur_armor = NULL;
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71 if (terse)
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72 addmsg("was");
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73 else
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74 addmsg("you used to be");
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75 msg(" wearing %c) %s", obj->o_packch, inv_name(obj, TRUE));
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76 }
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77
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78 /*
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79 * waste_time:
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80 * Do nothing but let other things happen
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81 */
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82 void
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83 waste_time(void)
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84 {
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85 do_daemons(BEFORE);
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86 do_fuses(BEFORE);
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87 do_daemons(AFTER);
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88 do_fuses(AFTER);
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89 }