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annotate urogue/dict.h @ 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 13b482bd9e66
children
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1 /*
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2 dict.h
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3
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4 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
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5 Copyright (C) 1995 Herb Chong
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6 All rights reserved.
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7
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8 See the file LICENSE.TXT for full copyright and licensing information.
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9 */
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10
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11 /*-----------------
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12 Change history:
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13 (AK:04/03/95) - Added hook for extensions to dictionary structure.
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14 (AK:04/04/95) - Added dictionary signature, table of contents and parameter
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15 structure defintions and fields in DICTIONARY structure
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16 -------------------*/
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17
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18 #ifndef dict_h_included
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19 #define dict_h_included
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20
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21 #ifndef TRUE
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22 #define TRUE 1
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23 #define FALSE 0
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24 #endif
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25
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26 #define DICT_NONE 0x00000000 /* no flags set */
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27 #define DICT_VALIDATE 0xdeadbeef /* look for this in every dictionary structure */
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28 #define DICT_ENTRY_NONE -1 /* index of invalid entry */
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29
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30 typedef unsigned char BOOLEANC;
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31
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32 /*------------------
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33 string table entry
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34 ------------------*/
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35 typedef struct string_entry {
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36 long string_offset; /* offset in string array */
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37 long count; /* number of occurrences of string */
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38 long next; /* offset of next in hash chain */
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39 void *any_ptr; /* free pointer */
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40 unsigned long flags; /* user definable flag value for string */
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41 unsigned long hash_value; /* hash value of string using hash function */
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42 } STRING_ENTRY;
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43
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44 /*--------------------
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45 Dictionary signature (AK:04/04/95)
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46 --------------------*/
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47 typedef struct dict_sig_ { /* Dictionary signature */
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48 unsigned long check_value; /* 0xdeadbeef */
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49 int toc_size; /* # of entries in Table of Contents */
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50 long nparms; /* # of parameters */
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51 unsigned long checksum; /* Checksum for TOC */
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52 } DICT_SIG;
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53
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54 /*----------------------------------
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55 Dictionary table of contents entry (AK:04/04/95)
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56 ----------------------------------*/
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57 typedef struct TOC_entry_ { /* Dictionary table of contents entry */
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58 char id[5]; /* Field identifier: */
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59 long offset; /* Offset (bytes) of entry in file */
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60 long size; /* Size (bytes) of entry */
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61 void *ptr; /* Where entry is stored in memory */
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62 unsigned long checksum; /* Checksum of entry */
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63 int type; /* 0=ordinary ; 1=EVECTOR ; 2=NULL */
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64 } DICT_TOC_ENTRY;
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65
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66 /*--------------------------------
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67 Dictionary parameter table entry (AK:04/04/95)
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68 --------------------------------*/
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69 typedef struct dict_parm_entry_ { /* Dictionary parameter table entry */
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70 char id[13]; /* Parameter identifier */
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71 unsigned long value; /* Parameter value */
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72 } DICT_PARM_ENTRY;
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73
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74
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75 /*---------------------------
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76 Hash dictionary information
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77 ---------------------------*/
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78 typedef struct dictionary {
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79 unsigned long check_value; /* check validation value */
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80 unsigned long flags; /* flag values */
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81 long entry_count; /* number of used entries in each table */
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82
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83 char *string_array; /* storage for strings */
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84 long array_size; /* number of bytes allocated */
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85 long array_used; /* number of bytes occupied */
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86 int array_growth_count; /* number of times grown */
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87
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88 STRING_ENTRY *string_table; /* string table */
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89 long string_max; /* max number of entries in string table */
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90 long scan_string_index; /* current index into string table for scan */
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91 int string_growth_count; /* number of times had to grow string table */
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