Mercurial > hg > early-roguelike
annotate rogue5/mach_dep.c @ 111:7f8f43943b1f
Fix some terribly depressing corruption during restore.
In rogue5/state.c, rs_read_daemons() zeroes out the argument and delay
if the daemon slot is empty. Unfortunately that code ended up on the
wrong side of the brace that closes the for loop, so instead of running
after each daemon, it got run once after the loop exited, when the
index was of course out of bounds.
This tended to manifest, when compiled with -O2, by overwriting hw and
setting it to NULL. When inventory() next ran, hw would be passed to
wgetch(), which returns ERR when it gets a NULL argument. This made
md_readchar() think something was wrong and autosave the game.
Upon investigation, rogue3 was found to commit the same mistake.
rogue4 and srogue don't zero the data. arogue5 already does it
properly.
Someday I am going to run all this through Valgrind. Someday when I
am a kinder person who will not be driven to invoke hordes of trolls
and centaurs upon the original authors.
author | John "Elwin" Edwards |
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date | Wed, 08 Jan 2014 16:44:16 -0500 |
parents | 655c317b6237 |
children | 2c62bd925c17 |
rev | line source |
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33
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1 /* |
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2 * Various installation dependent routines |
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3 * |
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4 * @(#)mach_dep.c 4.37 (Berkeley) 05/23/83 |
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5 * |
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6 * Rogue: Exploring the Dungeons of Doom |
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman |
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8 * All rights reserved. |
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9 * |
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10 * See the file LICENSE.TXT for full copyright and licensing information. |
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11 */ |
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12 |
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13 /* |
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14 * The various tuneable defines are: |
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15 * |
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16 * SCOREFILE Where/if the score file should live. |
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17 * ALLSCORES Score file is top ten scores, not top ten |
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18 * players. This is only useful when only a few |
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19 * people will be playing; otherwise the score file |
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20 * gets hogged by just a few people. |
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21 * NUMSCORES Number of scores in the score file (default 10). |
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22 * NUMNAME String version of NUMSCORES (first character |
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23 * should be capitalized) (default "Ten"). |
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24 * MAXLOAD What (if any) the maximum load average should be |
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25 * when people are playing. Since it is divided |
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26 * by 10, to specify a load limit of 4.0, MAXLOAD |
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27 * should be "40". If defined, then |
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28 * LOADAV Should it use it's own routine to get |
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29 * the load average? |
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30 * NAMELIST If so, where does the system namelist |
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31 * hide? |
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32 * MAXUSERS What (if any) the maximum user count should be |
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33 * when people are playing. If defined, then |
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34 * UCOUNT Should it use it's own routine to count |
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35 * users? |
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36 * UTMP If so, where does the user list hide? |
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37 * CHECKTIME How often/if it should check during the game |
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38 * for high load average. |
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39 */ |
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40 |
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41 #include <signal.h> |
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42 #include <sys/types.h> |
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43 #include <sys/stat.h> |
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44 #include <limits.h> |
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45 #include <string.h> |
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46 #include <fcntl.h> |
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47 #include <errno.h> |
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48 #include <time.h> |
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49 #include <curses.h> |
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50 #include "extern.h" |
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51 |
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52 #define NOOP(x) (x += 0) |
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53 |
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54 # ifndef NUMSCORES |
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55 # define NUMSCORES 10 |
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56 # define NUMNAME "Ten" |
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57 # endif |
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58 |
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59 #ifdef CHECKTIME |
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60 static int num_checks = 0; /* times we've gone over in checkout() */ |
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61 #endif /* CHECKTIME */ |
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62 |
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63 /* |
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64 * init_check: |
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65 * Check out too see if it is proper to play the game now |
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66 */ |
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67 |
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68 void |
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69 init_check(void) |
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70 { |
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71 #if defined(MAXLOAD) || defined(MAXUSERS) |
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72 if (too_much()) |
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73 { |
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74 printf("Sorry, %s, but the system is too loaded now.\n", whoami); |
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75 printf("Try again later. Meanwhile, why not enjoy a%s %s?\n", |
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76 vowelstr(fruit), fruit); |
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77 if (author()) |
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78 printf("However, since you're a good guy, it's up to you\n"); |
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79 else |
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80 exit(1); |
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81 } |
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82 #endif |
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83 } |
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84 |
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85 /* |
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86 * open_score: |
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87 * Open up the score file for future use |
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88 */ |
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89 |
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90 void |
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91 open_score(void) |
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92 { |
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93 #ifdef SCOREFILE |
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94 char *scorefile = SCOREFILE; |
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95 |
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96 numscores = NUMSCORES; |
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97 Numname = NUMNAME; |
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98 |
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99 #ifdef ALLSCORES |
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100 allscore = TRUE; |
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101 #else /* ALLSCORES */ |
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102 allscore = FALSE; |
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103 #endif /* ALLSCORES */ |
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104 |
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105 /* |