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annotate rogue3/wizard.c @ 144:708bb2dea17c

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arogue7, xrogue: prevent potential NULL dereferencing. It is possible for getpwuid() to fail and return NULL. Various md_get* functions now check for this.
author John "Elwin" Edwards
date Mon, 18 May 2015 10:53:22 -0400
parents 527e2150eaf0
children e7aab31362af
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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 3.8 (Berkeley) 6/3/81
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7 *
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8 * 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 #include "curses.h"
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16 #include <ctype.h>
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17 #include <string.h>
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18 #include <stdlib.h>
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19 #include "machdep.h"
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20 #include "rogue.h"
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21
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22 /*
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23 * whatis:
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24 * What a certin object is
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25 */
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26
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27 void
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28 whatis()
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29 {
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30 struct object *obj;
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31 struct linked_list *item;
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32
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33 if ((item = get_item("identify", 0)) == NULL)
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34 return;
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35 obj = (struct object *) ldata(item);
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36 switch (obj->o_type)
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37 {
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38 case SCROLL:
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39 s_know[obj->o_which] = TRUE;
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40 if (s_guess[obj->o_which])
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41 {
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42 free(s_guess[obj->o_which]);
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43 s_guess[obj->o_which] = NULL;
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44 }
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45 when POTION:
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46 p_know[obj->o_which] = TRUE;
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47 if (p_guess[obj->o_which])
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48 {
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49 free(p_guess[obj->o_which]);
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50 p_guess[obj->o_which] = NULL;
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51 }
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52 when STICK:
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53 ws_know[obj->o_which] = TRUE;
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54 obj->o_flags |= ISKNOW;
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55 if (ws_guess[obj->o_which])
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56 {
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57 free(ws_guess[obj->o_which]);
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58 ws_guess[obj->o_which] = NULL;
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59 }
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60 when WEAPON:
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61 case ARMOR:
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62 obj->o_flags |= ISKNOW;
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63 when RING:
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64 r_know[obj->o_which] = TRUE;
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65 obj->o_flags |= ISKNOW;
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66 if (r_guess[obj->o_which])
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67 {
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68 free(r_guess[obj->o_which]);
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69 r_guess[obj->o_which] = NULL;
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70 }
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71 }
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72 msg(inv_name(obj, FALSE));
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73 }
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74
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75 /*
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76 * create_obj:
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77 * Wizard command for getting anything he wants
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78 */
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79
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80 void
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81 create_obj()
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82 {
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83 struct linked_list *item;
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84 struct object *obj;
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85 int bless;
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86 int ch;
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87
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88 item = new_item(sizeof *obj);
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89 obj = (struct object *) ldata(item);
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90 msg("Type of item: ");
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91 obj->o_type = readchar(cw);
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92 mpos = 0;
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93 msg("Which %c do you want? (0-f)", obj->o_type);
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94 obj->o_which = (isdigit((ch = readchar(cw))) ? ch - '0' : ch - 'a' + 10);
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95 obj->o_group = 0;
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96 obj->o_count = 1;
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97 mpos = 0;
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98 if (obj->o_type == WEAPON || obj->o_type == ARMOR)
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99 {
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100 msg("Blessing? (+,-,n)");
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101 bless = readchar(cw);
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102 mpos = 0;
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103 if (obj->o_type == WEAPON)
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104 {
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105 init_weapon(obj, obj->o_which);
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