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annotate xrogue/daemon.c @ 310:827441d05b3e

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Advanced Rogue family: fix some potential buffer overflows. Some code for determining the score file location assumed that PATH_MAX would be less than 1024, which cannot be guaranteed. Advanced Rogue 5 and 7, and XRogue, have had the buffers for the file name enlarged. UltraRogue never called the functions, so the code has been deleted instead.
author John "Elwin" Edwards
date Mon, 03 May 2021 19:05:37 -0400
parents e1cd27c5464f
children
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1 /*
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2 daemon.c - functions for dealing with things that happen in the future
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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 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <curses.h>
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20 #include "rogue.h"
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21
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22 #define EMPTY 0
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23 #define DAEMON -1
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24
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25 #define _X_ { EMPTY }
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26
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27 struct delayed_action d_list[MAXDAEMONS] = {
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28 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
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29 };
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30 struct delayed_action f_list[MAXFUSES] = {
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31 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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32 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
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33 };
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34
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35 int demoncnt = 0; /* number of active daemons */
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36 int fusecnt = 0;
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37
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38
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39 /*
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40 * d_slot:
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41 * Find an empty slot in the daemon list
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42 */
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43 struct delayed_action *
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44 d_slot(void)
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45 {
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46 reg int i;
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47 reg struct delayed_action *dev;
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48
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49 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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50 if (dev->d_type == EMPTY)
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51 return dev;
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52 return NULL;
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53 }
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54
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55 /*
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56 * f_slot:
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57 * Find an empty slot in the fuses list
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58 */
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59 struct delayed_action *
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60 f_slot(void)
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61 {
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62 reg int i;
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63 reg struct delayed_action *dev;
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64
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65 for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
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66 if (dev->d_type == EMPTY)
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67 return dev;
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68 return NULL;
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69 }
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70
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71 /*
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72 * find_slot:
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73 * Find a particular slot in the table
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74 */
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75
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76 struct delayed_action *
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77 find_slot(void (*func)())
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78 {
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79 reg int i;
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80 reg struct delayed_action *dev;
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81
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82 for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
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83 if (dev->d_type != EMPTY && func == dev->d_func)
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84 return dev;
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85 return NULL;
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86 }
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87
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88 /*
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89 * start_daemon:
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90 * Start a daemon, takes a function.
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91 */
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92
220