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annotate rogue4/wizard.c @ 176:db1c9a21a7c3

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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
date Sun, 02 Aug 2015 12:14:47 -0400
parents 00e90f1bffd6
children 1b73a8641b37
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12
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1
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2 /*
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3 * Special wizard commands (some of which are also non-wizard commands
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4 * under strange circumstances)
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5 *
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6 * @(#)wizard.c 4.14 (Berkeley) 1/26/82
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7 */
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8
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9 #include <curses.h>
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10 #include <ctype.h>
25
00e90f1bffd6 Add a file include
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11 #include <stdlib.h>
12
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12 #include <string.h>
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13 #include "rogue.h"
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14
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15 /*
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16 * whatis:
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17 * What a certin object is
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18 */
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19 whatis(insist)
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20 bool insist;
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21 {
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22 register THING *obj;
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23
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24 if (pack == NULL)
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25 {
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26 msg("You don't have anything in your pack to identify");
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27 return;
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28 }
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29
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30 for (;;)
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31 if ((obj = get_item("identify", 0)) == NULL && insist)
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32 msg("You must identify something");
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33 else
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34 break;
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35
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36 if (!insist && obj == NULL)
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37 return;
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38
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39 switch (obj->o_type)
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40 {
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41 case SCROLL:
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42 s_know[obj->o_which] = TRUE;
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43 if (s_guess[obj->o_which])
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44 {
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45 free(s_guess[obj->o_which]);
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46 s_guess[obj->o_which] = NULL;
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47 }
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48 when POTION:
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49 p_know[obj->o_which] = TRUE;
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50 if (p_guess[obj->o_which])
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51 {
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52 free(p_guess[obj->o_which]);
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53 p_guess[obj->o_which] = NULL;
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54 }
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55 when STICK:
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56 ws_know[obj->o_which] = TRUE;
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57 obj->o_flags |= ISKNOW;
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58 if (ws_guess[obj->o_which])
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59 {
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60 free(ws_guess[obj->o_which]);
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61 ws_guess[obj->o_which] = NULL;
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62 }
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63 when WEAPON:
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64 case ARMOR:
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65 obj->o_flags |= ISKNOW;
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66 when RING:
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67 r_know[obj->o_which] = TRUE;
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68 obj->o_flags |= ISKNOW;
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69 if (r_guess[obj->o_which])
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70 {
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71 free(r_guess[obj->o_which]);
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72 r_guess[obj->o_which] = NULL;
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73 }
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74 }
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75 msg(inv_name(obj, FALSE));
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76 }
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77
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78 #ifdef WIZARD
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79 /*
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80 * create_obj:
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81 * Wizard command for getting anything he wants
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82 */
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83 create_obj()
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84 {
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85 register THING *obj;
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86 register char ch, bless;
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87
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88 obj = new_item();
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89 msg("type of item: ");
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90 obj->o_type = readchar();
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91 mpos = 0;
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92 msg("which %c do you want? (0-f)", obj->o_type);
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93 obj->o_which = (isdigit((ch = readchar())) ? ch - '0' : ch - 'a' + 10);
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94 obj->o_group = 0;
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95 obj->o_count = 1;
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96 mpos = 0;
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97 if (obj->o_type == WEAPON || obj->o_type == ARMOR)
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98 {
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99 msg("blessing? (+,-,n)");
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100 bless = readchar();
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101 mpos = 0;
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102 if (bless == '-')
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103 obj->o_flags |= ISCURSED;
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104 if (obj->o_type == WEAPON)
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