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annotate arogue5/misc.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 f2951c4e28d9
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * routines dealing specifically with miscellaneous magic
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 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 * 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 #include "curses.h"
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12 #include <stdlib.h>
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13 #include <ctype.h>
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14 #include <string.h>
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15 #include "rogue.h"
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16
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17 /*
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18 * See if a monster has some magic it can use. Use it and return TRUE if so.
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19 */
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20 bool
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21 m_use_item(monster, monst_pos, defend_pos)
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22 register struct thing *monster;
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23 register coord *monst_pos, *defend_pos;
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24 {
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25 register struct linked_list *pitem;
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26 register struct object *obj;
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27 register coord *shoot_dir = can_shoot(monst_pos, defend_pos);
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28 int dist=DISTANCE(monst_pos->y, monst_pos->x, defend_pos->y, defend_pos->x);
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29
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30 for (pitem=monster->t_pack; pitem; pitem=next(pitem)) {
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31 obj = OBJPTR(pitem);
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32 if (obj->o_type != RELIC) continue; /* Only care about relics now */
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33 switch (obj->o_which) {
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34 case MING_STAFF: {
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35 static struct object missile = {
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36 MISSILE, {0,0}, "", 0, "", "0d4 " , NULL, 0, WS_MISSILE, 100, 1
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37 };
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38
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39 if (shoot_dir != NULL) {
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40 sprintf(missile.o_hurldmg, "%dd4", monster->t_stats.s_lvl);
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41 do_motion(&missile, shoot_dir->y, shoot_dir->x, monster);
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42 hit_monster(unc(missile.o_pos), &missile, monster);
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43 return(TRUE);
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44 }
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45 }
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46 when ASMO_ROD:
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47 /* The bolt must be able to reach the defendant */
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48 if (shoot_dir != NULL && dist < BOLT_LENGTH * BOLT_LENGTH) {
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49 char *name;
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50
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51 switch (rnd(3)) { /* Select a function */
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52 case 0: name = "lightning bolt";
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53 when 1: name = "flame";
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54 otherwise: name = "ice";
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55 }
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56 shoot_bolt( monster,
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57 *monst_pos,
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58 *shoot_dir,
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59 FALSE,
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60 monster->t_index,
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61 name,
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62 roll(monster->t_stats.s_lvl,6));
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63 return(TRUE);
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64 }
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65 when BRIAN_MANDOLIN:
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66 /* The defendant must be the player and within 2 spaces */
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67 if (ce(*defend_pos, hero) && dist < 9 && no_command == 0 &&
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68 rnd(100) < 33) {
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69 if (!save(VS_MAGIC, &player, -4) &&
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70 !ISWEARING(R_ALERT)) {
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71 msg("Some beautiful music enthralls you.");
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72 no_command += FREEZETIME;
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73 }
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74 else msg("You wince at a sour note.");
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75 return(TRUE);
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76 }
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77 when GERYON_HORN:
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78 /* The defendant must be the player and within 2 spaces */
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79 if (ce(*defend_pos, hero) && dist < 9 &&
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80 (off(player, ISFLEE) || player.t_dest != &monster->t_pos)
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81 && rnd(100) < 33) {
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82 if (!ISWEARING(R_HEROISM) &&
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83 !save(VS_MAGIC, &player, -4)) {
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84 turn_on(player, ISFLEE);
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85 player.t_dest = &monster->t_pos;
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86 msg("A shrill blast terrifies you.");
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87 }
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88 else msg("A shrill blast sends chills up your spine.");
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89 return(TRUE);
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90 }
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91 }
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92 }
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93 return(FALSE);
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94 }
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95
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96 /*
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97 * add something to the contents of something else
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98 */
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99 put_contents(bag, item)
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100 register struct object *bag; /* the holder of the items */
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101 register struct linked_list *item; /* the item to put inside */
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102 {
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103 register struct linked_list *titem;