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annotate arogue7/daemons.c @ 280:70aa5808c782

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Fix potential segfaults at restore related to ctime(). In some games, restore() passes the result of ctime() to mvprintw() or some other variadic message-formatting function. If ctime() has not been declared properly, its return type is inferred to be int instead of char *. This does not cause a warning because the compiler does not know the correct type of variadic arguments. On platforms where ints and pointers are not the same size, this can, probably depending on alignment, result in a segfault that is not easy to trace. Including time.h fixes the problem. Some games manually declared ctime() and avoided the bug. These declarations have also been replaced with the include.
author John "Elwin" Edwards
date Fri, 15 Sep 2017 20:51:10 -0400
parents e1cd27c5464f
children
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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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f9ef86cf22b2 Advanced Rogue 7: convert to ANSI-style function declarations.
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28 void
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29 doctor(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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