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annotate xrogue/misc.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 cadff8f047a1
children f54901b9c39b
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1 /*
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2 misc.c - routines dealing specifically with miscellaneous magic
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3
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4 XRogue: Expeditions into the Dungeons of Doom
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5 Copyright (C) 1991 Robert Pietkivitch
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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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 <stdlib.h>
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16 #include <curses.h>
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17 #include <ctype.h>
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18 #include <string.h>
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19 #include "rogue.h"
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20
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21 /*
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22 * changeclass:
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23 * Change the player's class to the specified one.
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24 */
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25
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26 changeclass(newclass)
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27 long *newclass;
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28 {
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29 if (*newclass == player.t_ctype) {
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30 msg("You feel more skillful.");
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31 raise_level();
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32 }
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33 else {
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34 /*
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35 * reset his class and then use check_level to reset hit
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36 * points and the right level for his exp pts
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37 * drop exp pts by 10%
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38 */
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39 long save;
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40
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41 msg("You are transformed into a %s! ", char_class[*newclass].name);
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42
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43 /*
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44 * if he becomes a thief or an assassin give him studded leather armor
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45 */
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46 if ((*newclass == C_THIEF || *newclass == C_ASSASSIN) &&
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47 cur_armor != NULL && cur_armor->o_which != STUDDED_LEATHER)
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48 cur_armor->o_which = STUDDED_LEATHER;
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49 /*
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50 * if he becomes a monk he can't wear any armor
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51 * so give him a cloak of protection
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52 */
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53 if (*newclass == C_MONK && cur_armor != NULL) {
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54 cur_armor->o_ac = armors[cur_armor->o_which].a_class -
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55 cur_armor->o_ac;
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56 cur_armor->o_type = MM;
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57 cur_armor->o_which = MM_PROTECT;
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58 cur_armor->o_flags &= ~(ISPROT | ISKNOW);
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59 cur_misc[WEAR_CLOAK] = cur_armor;
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60 cur_armor = NULL;
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61 }
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62 /*
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63 * otherwise give him plate armor
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64 */
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65 if ((*newclass != C_THIEF ||
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66 *newclass != C_ASSASSIN || *newclass != C_MONK) &&
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67 cur_armor != NULL && cur_armor->o_which != PLATE_ARMOR)
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68 cur_armor->o_which = PLATE_ARMOR;
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69
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70 /*
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71 * if he used to be a spell caster of some sort, kill the fuse
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72 */
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73 if (player.t_ctype == C_MAGICIAN || player.t_ctype == C_RANGER)
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74 extinguish(spell_recovery);
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75 if (player.t_ctype == C_DRUID || player.t_ctype == C_MONK)
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76 extinguish(chant_recovery);
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77 if ((player.t_ctype == C_CLERIC || player.t_ctype == C_PALADIN) &&
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78 !cur_relic[HEIL_ANKH])
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79 extinguish(prayer_recovery);
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80
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81 /*
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82 * if he becomes a spell caster of some kind, give him a fuse
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83 */
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84 if (*newclass == C_MAGICIAN || *newclass == C_RANGER)
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85 fuse(spell_recovery, (VOID *)NULL, SPELLTIME, AFTER);
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86 if (*newclass == C_DRUID || *newclass == C_MONK)
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87 fuse(chant_recovery, (VOID *)NULL, SPELLTIME, AFTER);
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88 if ((*newclass==C_CLERIC || *newclass==C_PALADIN) && !cur_misc[HEIL_ANKH])
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89 fuse(prayer_recovery, (VOID *)NULL, SPELLTIME, AFTER);
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90 /*
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91 * if he's changing from a fighter, ranger, or paladin then we
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