Early Roguelike Collection: rogue5/weapons.c annotate

annotate rogue5/weapons.c @ 176:db1c9a21a7c3

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	f502bf60e6e4
children

rev	line source
33 f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	1 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	2 * Functions for dealing with problems brought about by weapons
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	3 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	4 * @(#)weapons.c 4.34 (Berkeley) 02/05/99
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	5 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	6 * Rogue: Exploring the Dungeons of Doom
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	8 * All rights reserved.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	9 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	10 * See the file LICENSE.TXT for full copyright and licensing information.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	11 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	12
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	13 #include <curses.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	14 #include <string.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	15 #include <ctype.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	16 #include "rogue.h"
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	17
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	18 #define NO_WEAPON -1
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	19
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	20 static const struct init_weaps {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	21 char iw_dam; / Damage when wielded */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	22 char iw_hrl; / Damage when thrown */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	23 int iw_launch; /* Launching weapon */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	24 int iw_flags; /* Miscellaneous flags */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	25 } init_dam[MAXWEAPONS] = {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	26 { "2x4", "1x3", NO_WEAPON, 0, }, /* Mace */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	27 { "3x4", "1x2", NO_WEAPON, 0, }, /* Long sword */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	28 { "1x1", "1x1", NO_WEAPON, 0, }, /* Bow */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	29 { "1x1", "2x3", BOW, ISMANY\|ISMISL, }, /* Arrow */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	30 { "1x6", "1x4", NO_WEAPON, ISMISL\|ISMISL, }, /* Dagger */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	31 { "4x4", "1x2", NO_WEAPON, 0, }, /* 2h sword */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	32 { "1x1", "1x3", NO_WEAPON, ISMANY\|ISMISL, }, /* Dart */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	33 { "1x2", "2x4", NO_WEAPON, ISMANY\|ISMISL, }, /* Shuriken */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	34 { "2x3", "1x6", NO_WEAPON, ISMISL, }, /* Spear */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	35 };
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	36
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	37 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	38 * missile:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	39 * Fire a missile in a given direction
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	40 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	41
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	42 void
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	43 missile(int ydelta, int xdelta)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	44 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	45 THING *obj;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	46
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	47 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	48 * Get which thing we are hurling
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	49 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	50 if ((obj = get_item("throw", WEAPON)) == NULL)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	51 return;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	52 if (!dropcheck(obj) \|\| is_current(obj))
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	53 return;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	54 obj = leave_pack(obj, TRUE, FALSE);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	55 do_motion(obj, ydelta, xdelta);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	56 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	57 * AHA! Here it has hit something. If it is a wall or a door,
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	58 * or if it misses (combat) the monster, put it on the floor
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	59 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	60 if (moat(obj->o_pos.y, obj->o_pos.x) == NULL \|\|
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	61 !hit_monster(unc(obj->o_pos), obj))
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	62 fall(obj, TRUE);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	63 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	64
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	65 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	66 * do_motion:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	67 * Do the actual motion on the screen done by an object traveling
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	68 * across the room
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	69 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	70
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	71 void
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	72 do_motion(THING *obj, int ydelta, int xdelta)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	73 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	74 int ch;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	75
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	76 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	77 * Come fly with us ...
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	78 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	79 obj->o_pos = hero;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	80 for (;;)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	81 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	82 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	83 * Erase the old one
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	84 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	85 if (!ce(obj->o_pos, hero) && cansee(unc(obj->o_pos)) && !terse)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	86 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	87 ch = chat(obj->o_pos.y, obj->o_pos.x);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	88 if (ch == FLOOR && !show_floor())
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	89 ch = ' ';
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	90 mvaddch(obj->o_pos.y, obj->o_pos.x, ch);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	91 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	92 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	93 * Get the new position
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	94 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	95 obj->o_pos.y += ydelta;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	96 obj->o_pos.x += xdelta;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	97 if (step_ok(ch = winat(obj->o_pos.y, obj->o_pos.x)) && ch != DOOR)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	98 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	99 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	100 * It hasn't hit anything yet, so display it
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	101 * If it alright.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	102 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	103 if (cansee(unc(obj->o_pos)) && !terse)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	104 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset	105 mvaddch(obj->o_pos.y, obj->o_pos.x, obj->o_type);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490) elwin parents: diff changeset

Mercurial > hg > early-roguelike

annotate rogue5/weapons.c @ 176:db1c9a21a7c3