Mercurial > hg > early-roguelike
annotate arogue7/daemons.c @ 176:db1c9a21a7c3
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 |
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date | Sun, 02 Aug 2015 12:14:47 -0400 |
parents | cadff8f047a1 |
children | 1cd604c827a3 |
rev | line source |
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125
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1 /* |
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2 * daemon.c - All the daemon and fuse functions are in here |
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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 /* |
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16 * All the daemon and fuse functions are in here |
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17 * |
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18 */ |
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19 |
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20 #include "curses.h" |
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21 #include "rogue.h" |
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22 |
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23 /* |
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24 * doctor: |
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25 * A healing daemon that restors hit points after rest |
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26 */ |
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27 |
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28 doctor(tp) |
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29 register struct thing *tp; |
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30 { |
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31 register int ohp; |
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32 register int limit, new_points; |
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33 register struct stats *curp; /* current stats pointer */ |
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34 register struct stats *maxp; /* max stats pointer */ |
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35 |
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36 curp = &(tp->t_stats); |
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37 maxp = &(tp->maxstats); |
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38 if (curp->s_hpt == maxp->s_hpt) { |
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39 tp->t_quiet = 0; |
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40 return; |
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41 } |
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42 tp->t_quiet++; |
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43 switch (tp->t_ctype) { |
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44 case C_MAGICIAN: |
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45 limit = 8 - curp->s_lvl; |
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46 new_points = curp->s_lvl - 3; |
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47 when C_THIEF: |
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48 case C_ASSASIN: |
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49 case C_MONK: |
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50 limit = 8 - curp->s_lvl; |
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51 new_points = curp->s_lvl - 2; |
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52 when C_CLERIC: |
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53 case C_DRUID: |
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54 limit = 8 - curp->s_lvl; |
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55 new_points = curp->s_lvl - 3; |
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56 when C_FIGHTER: |
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57 case C_RANGER: |
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58 case C_PALADIN: |
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59 limit = 16 - curp->s_lvl*2; |
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60 new_points = curp->s_lvl - 5; |
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61 when C_MONSTER: |
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62 limit = 16 - curp->s_lvl; |
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63 new_points = curp->s_lvl - 6; |
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64 otherwise: |
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65 debug("what a strange character you are!"); |
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66 return; |
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67 } |
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68 ohp = curp->s_hpt; |
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69 if (off(*tp, HASDISEASE) && off(*tp, DOROT)) { |
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70 if (curp->s_lvl < 8) { |
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71 if (tp->t_quiet > limit) { |
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72 curp->s_hpt++; |
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73 tp->t_quiet = 0; |
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74 } |
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75 } |
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76 else { |
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77 if (tp->t_quiet >= 3) { |
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78 curp->s_hpt += rnd(new_points)+1; |
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79 tp->t_quiet = 0; |
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80 } |
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81 } |
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82 } |
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83 if (tp == &player) { |
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84 if (ISRING(LEFT_1, R_REGEN)) curp->s_hpt++; |
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85 if (ISRING(LEFT_2, R_REGEN)) curp->s_hpt++; |
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86 if (ISRING(LEFT_3, R_REGEN)) curp->s_hpt++; |
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87 if (ISRING(LEFT_4, R_REGEN)) curp->s_hpt++; |
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88 if (ISRING(RIGHT_1, R_REGEN)) curp->s_hpt++; |
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89 if (ISRING(RIGHT_2, R_REGEN)) curp->s_hpt++; |
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90 if (ISRING(RIGHT_3, R_REGEN)) curp->s_hpt++; |
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91 if (ISRING(RIGHT_4, R_REGEN)) curp->s_hpt++; |