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annotate rogue3/things.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 527e2150eaf0
children 0250220d8cdd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Contains functions for dealing with things like
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3 * potions and scrolls
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4 *
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5 * @(#)things.c 3.37 (Berkeley) 6/15/81
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6 *
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7 * Rogue: Exploring the Dungeons of Doom
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8 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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9 * All rights reserved.
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10 *
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11 * See the file LICENSE.TXT for full copyright and licensing information.
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12 */
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13
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14 #include "curses.h"
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15 #include <ctype.h>
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16 #include <string.h>
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17 #include "rogue.h"
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18
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19 /*
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20 * inv_name:
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21 * return the name of something as it would appear in an
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22 * inventory.
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23 */
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24 char *
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25 inv_name(struct object *obj, int drop)
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26 {
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27 char *pb;
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28
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29 switch(obj->o_type)
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30 {
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31 case SCROLL:
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32 if (obj->o_count == 1)
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33 strcpy(prbuf, "A scroll ");
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34 else
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35 sprintf(prbuf, "%d scrolls ", obj->o_count);
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36 pb = &prbuf[strlen(prbuf)];
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37 if (s_know[obj->o_which])
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38 sprintf(pb, "of %s", s_magic[obj->o_which].mi_name);
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39 else if (s_guess[obj->o_which])
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40 sprintf(pb, "called %s", s_guess[obj->o_which]);
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41 else
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42 sprintf(pb, "titled '%s'", s_names[obj->o_which]);
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43 when POTION:
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44 if (obj->o_count == 1)
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45 strcpy(prbuf, "A potion ");
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46 else
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47 sprintf(prbuf, "%d potions ", obj->o_count);
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48 pb = &prbuf[strlen(prbuf)];
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49 if (p_know[obj->o_which])
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50 sprintf(pb, "of %s(%s)", p_magic[obj->o_which].mi_name,
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51 p_colors[obj->o_which]);
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52 else if (p_guess[obj->o_which])
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53 sprintf(pb, "called %s(%s)", p_guess[obj->o_which],
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54 p_colors[obj->o_which]);
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55 else if (obj->o_count == 1)
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56 sprintf(prbuf, "A%s %s potion",
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57 vowelstr(p_colors[obj->o_which]),
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58 p_colors[obj->o_which]);
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59 else
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60 sprintf(prbuf, "%d %s potions", obj->o_count,
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61 p_colors[obj->o_which]);
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62 when FOOD:
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63 if (obj->o_which == 1)
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64 if (obj->o_count == 1)
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65 sprintf(prbuf, "A%s %s", vowelstr(fruit), fruit);
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66 else
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67 sprintf(prbuf, "%d %ss", obj->o_count, fruit);
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68 else
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69 if (obj->o_count == 1)
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70 strcpy(prbuf, "Some food");
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71 else
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72 sprintf(prbuf, "%d rations of food", obj->o_count);
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73 when WEAPON:
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74 if (obj->o_count > 1)
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75 sprintf(prbuf, "%d ", obj->o_count);
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76 else
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77 strcpy(prbuf, "A ");
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78 pb = &prbuf[strlen(prbuf)];
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79 if (obj->o_flags & ISKNOW)
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80 sprintf(pb, "%s %s", num(obj->o_hplus, obj->o_dplus),
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81 w_names[obj->o_which]);
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82 else
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83 sprintf(pb, "%s", w_names[obj->o_which]);
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84 if (obj->o_count > 1)
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85 strcat(prbuf, "s");
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86 when ARMOR:
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87 if (obj->o_flags & ISKNOW)
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88 sprintf(prbuf, "%s %s",
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89 num(a_class[obj->o_which] - obj->o_ac, 0),
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90 a_names[obj->o_which]);
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91 else
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92 sprintf(prbuf, "%s", a_names[obj->o_which]);
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93 when AMULET:
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94 strcpy(prbuf, "The Amulet of Yendor");
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95 when STICK:
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96 sprintf(prbuf, "A %s ", ws_type[obj->o_which]);
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97 pb = &prbuf[strlen(prbuf)];
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98 if (ws_know[obj->o_which])
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99 sprintf(pb, "of %s%s(%s)", ws_magic[obj->o_which].mi_name,
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100 charge_str(obj), ws_made[obj->o_which]);
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101 else if (ws_guess[obj->o_which])
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102 sprintf(pb, "called %s(%s)", ws_guess[obj->o_which],
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103 ws_made[obj->o_which]);