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annotate arogue7/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 b786053d2f37
children f9ef86cf22b2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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125
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1 /*
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2 * things.c - functions for dealing with things like potions and scrolls
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "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 /*
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16 * Contains functions for dealing with things like
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17 * potions and scrolls
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18 *
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19 */
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20
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21 #include "curses.h"
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22 #include <ctype.h>
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b786053d2f37 arogue7: add missing header includes.
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23 #include <string.h>
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24 #include "rogue.h"
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25
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26 /*
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27 * print out the number of charges on a stick
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28 */
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29 char *
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30 charge_str(obj)
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31 register struct object *obj;
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32 {
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33 static char buf[20];
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34
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35 if (!(obj->o_flags & ISKNOW))
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36 buf[0] = '\0';
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37 else if (terse)
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38 sprintf(buf, " [%d]", obj->o_charges);
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39 else
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40 sprintf(buf, " [%d charges]", obj->o_charges);
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41 return buf;
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42 }
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43 /*
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44 * inv_name:
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45 * return the name of something as it would appear in an
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46 * inventory.
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47 */
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48 char *
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49 inv_name(obj, drop)
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50 register struct object *obj;
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51 bool drop;
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52 {
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53 register char *pb;
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54
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55 pb = prbuf;
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56 pb[0] = '\0';
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57 switch(obj->o_type) {
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58 case SCROLL:
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59 if (obj->o_count == 1)
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60 sprintf(pb, "A %sscroll ", blesscurse(obj->o_flags));
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61 else
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62 sprintf(pb, "%d %sscrolls ",
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63 obj->o_count, blesscurse(obj->o_flags));
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64 pb = &pb[strlen(pb)];
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65 if (s_know[obj->o_which] || (obj->o_flags & ISPOST))
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66 sprintf(pb, "of %s", s_magic[obj->o_which].mi_name);
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67 else if (s_guess[obj->o_which])
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68 sprintf(pb, "named %s", s_guess[obj->o_which]);
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69 else
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70 sprintf(pb, "titled '%s'", s_names[obj->o_which]);
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71 when POTION:
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72 if (obj->o_count == 1)
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73 sprintf(pb, "A %spotion ", blesscurse(obj->o_flags));
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74 else
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75 sprintf(pb, "%d %spotions ",
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76 obj->o_count, blesscurse(obj->o_flags));
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77 pb = &pb[strlen(pb)];
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78 if (p_know[obj->o_which])
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79 sprintf(pb, "of %s (%s)", p_magic[obj->o_which].mi_name,
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80 p_kind(obj));
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81 else if (obj->o_flags & ISPOST)
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82 sprintf(pb, "of %s", p_magic[obj->o_which].mi_name);
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83 else if (p_guess[obj->o_which])
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84 sprintf(pb, "named %s (%s)", p_guess[obj->o_which],
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85 p_colors[obj->o_which]);
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86 else {
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87 pb = prbuf;
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88 if (obj->o_count == 1)
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89 sprintf(pb, "A%s %s potion",
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90 vowelstr(p_colors[obj->o_which]),
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