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NetBSD/games/rogue/rogue.h
jsm 5367f3400c Security improvements for games (largely from or inspired by OpenBSD). 
Games which run setgid from dm, but don't need to, should drop their
privileges at startup.

Games which have a scorefile should open it at startup, then drop all
privileges leaving just the open writable file descriptor.  If the
game can invoke subprocesses, this should be made close-on-exec.

Games with scorefiles should make sure they do not get a file
descriptor < 3.  (Otherwise, they could get confused and corrupt the
scorefile when using stdin, stdout or stderr.)

Some old setuid revokes from the days of setuid games change into gid
revokes.
1999-09-12 09:02:20 +00:00

824 lines
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/* $NetBSD: rogue.h,v 1.10 1999/09/12 09:02:23 jsm Exp $ */
/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Timothy C. Stoehr.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)rogue.h 8.1 (Berkeley) 5/31/93
*/
/*
* rogue.h
*
* This source herein may be modified and/or distributed by anybody who
* so desires, with the following restrictions:
* 1.) This notice shall not be removed.
* 2.) Credit shall not be taken for the creation of this source.
* 3.) This code is not to be traded, sold, or used for personal
* gain or profit.
*/
#define boolean char
#define NOTHING ((unsigned short) 0)
#define OBJECT ((unsigned short) 01)
#define MONSTER ((unsigned short) 02)
#define STAIRS ((unsigned short) 04)
#define HORWALL ((unsigned short) 010)
#define VERTWALL ((unsigned short) 020)
#define DOOR ((unsigned short) 040)
#define FLOOR ((unsigned short) 0100)
#define TUNNEL ((unsigned short) 0200)
#define TRAP ((unsigned short) 0400)
#define HIDDEN ((unsigned short) 01000)
#define ARMOR ((unsigned short) 01)
#define WEAPON ((unsigned short) 02)
#define SCROL ((unsigned short) 04)
#define POTION ((unsigned short) 010)
#define GOLD ((unsigned short) 020)
#define FOOD ((unsigned short) 040)
#define WAND ((unsigned short) 0100)
#define RING ((unsigned short) 0200)
#define AMULET ((unsigned short) 0400)
#define ALL_OBJECTS ((unsigned short) 0777)
#define LEATHER 0
#define RINGMAIL 1
#define SCALE 2
#define CHAIN 3
#define BANDED 4
#define SPLINT 5
#define PLATE 6
#define ARMORS 7
#define BOW 0
#define DART 1
#define ARROW 2
#define DAGGER 3
#define SHURIKEN 4
#define MACE 5
#define LONG_SWORD 6
#define TWO_HANDED_SWORD 7
#define WEAPONS 8
#define MAX_PACK_COUNT 24
#define PROTECT_ARMOR 0
#define HOLD_MONSTER 1
#define ENCH_WEAPON 2
#define ENCH_ARMOR 3
#define IDENTIFY 4
#define TELEPORT 5
#define SLEEP 6
#define SCARE_MONSTER 7
#define REMOVE_CURSE 8
#define CREATE_MONSTER 9
#define AGGRAVATE_MONSTER 10
#define MAGIC_MAPPING 11
#define CON_MON 12
#define SCROLS 13
#define INCREASE_STRENGTH 0
#define RESTORE_STRENGTH 1
#define HEALING 2
#define EXTRA_HEALING 3
#define POISON 4
#define RAISE_LEVEL 5
#define BLINDNESS 6
#define HALLUCINATION 7
#define DETECT_MONSTER 8
#define DETECT_OBJECTS 9
#define CONFUSION 10
#define LEVITATION 11
#define HASTE_SELF 12
#define SEE_INVISIBLE 13
#define POTIONS 14
#define TELE_AWAY 0
#define SLOW_MONSTER 1
#define INVISIBILITY 2
#define POLYMORPH 3
#define HASTE_MONSTER 4
#define MAGIC_MISSILE 5
#define CANCELLATION 6
#define DO_NOTHING 7
#define DRAIN_LIFE 8
#define COLD 9
#define FIRE 10
#define WANDS 11
#define STEALTH 0
#define R_TELEPORT 1
#define REGENERATION 2
#define SLOW_DIGEST 3
#define ADD_STRENGTH 4
#define SUSTAIN_STRENGTH 5
#define DEXTERITY 6
#define ADORNMENT 7
#define R_SEE_INVISIBLE 8
#define MAINTAIN_ARMOR 9
#define SEARCHING 10
#define RINGS 11
#define RATION 0
#define FRUIT 1
#define NOT_USED ((unsigned short) 0)
#define BEING_WIELDED ((unsigned short) 01)
#define BEING_WORN ((unsigned short) 02)
#define ON_LEFT_HAND ((unsigned short) 04)
#define ON_RIGHT_HAND ((unsigned short) 010)
#define ON_EITHER_HAND ((unsigned short) 014)
#define BEING_USED ((unsigned short) 017)
#define NO_TRAP -1
#define TRAP_DOOR 0
#define BEAR_TRAP 1
#define TELE_TRAP 2
#define DART_TRAP 3
#define SLEEPING_GAS_TRAP 4
#define RUST_TRAP 5
#define TRAPS 6
#define STEALTH_FACTOR 3
#define R_TELE_PERCENT 8
#define UNIDENTIFIED ((unsigned short) 00) /* MUST BE ZERO! */
#define IDENTIFIED ((unsigned short) 01)
#define CALLED ((unsigned short) 02)
#define DROWS 24
#define DCOLS 80
#define NMESSAGES 5
#define MAX_TITLE_LENGTH 30
#define MAXSYLLABLES 40
#define MAX_METAL 14
#define WAND_MATERIALS 30
#define GEMS 14
#define GOLD_PERCENT 46
#define MAX_OPT_LEN 40
struct id {
short value;
char *title;
char *real;
unsigned short id_status;
};
/* The following #defines provide more meaningful names for some of the
* struct object fields that are used for monsters. This, since each monster
* and object (scrolls, potions, etc) are represented by a struct object.
* Ideally, this should be handled by some kind of union structure.
*/
#define m_damage damage
#define hp_to_kill quantity
#define m_char ichar
#define first_level is_protected
#define last_level is_cursed
#define m_hit_chance class
#define stationary_damage identified
#define drop_percent which_kind
#define trail_char d_enchant
#define slowed_toggle quiver
#define moves_confused hit_enchant
#define nap_length picked_up
#define disguise what_is
#define next_monster next_object
struct obj { /* comment is monster meaning */
unsigned long m_flags; /* monster flags */
const char *damage; /* damage it does */
short quantity; /* hit points to kill */
short ichar; /* 'A' is for aquatar */
short kill_exp; /* exp for killing it */
short is_protected; /* level starts */
short is_cursed; /* level ends */
short class; /* chance of hitting you */
short identified; /* 'F' damage, 1,2,3... */
unsigned short which_kind; /* item carry/drop % */
short o_row, o_col, o; /* o is how many times stuck at o_row, o_col */
short row, col; /* current row, col */
short d_enchant; /* room char when detect_monster */
short quiver; /* monster slowed toggle */
short trow, tcol; /* target row, col */
short hit_enchant; /* how many moves is confused */
unsigned short what_is; /* imitator's charactor (?!%: */
short picked_up; /* sleep from wand of sleep */
unsigned short in_use_flags;
struct obj *next_object; /* next monster */
};
typedef struct obj object;
#define INIT_AW (object*)0
#define INIT_RINGS (object*)0
#define INIT_HP 12
#define INIT_STR 16
#define INIT_EXPLEVEL 1
#define INIT_EXP 0
#define INIT_PACK {0}
#define INIT_GOLD 0
#define INIT_CHAR '@'
#define INIT_MOVES 1250
struct fightr {
object *armor;
object *weapon;
object *left_ring, *right_ring;
short hp_current;
short hp_max;
short str_current;
short str_max;
object pack;
long gold;
short exp;
long exp_points;
short row, col;
short fchar;
short moves_left;
};
typedef struct fightr fighter;
struct dr {
short oth_room;
short oth_row,
oth_col;
short door_row,
door_col;
};
typedef struct dr door;
struct rm {
short bottom_row, right_col, left_col, top_row;
door doors[4];
unsigned short is_room;
};
typedef struct rm room;
#define MAXROOMS 9
#define BIG_ROOM 10
#define NO_ROOM -1
#define PASSAGE -3 /* cur_room value */
#define AMULET_LEVEL 26
#define R_NOTHING ((unsigned short) 01)
#define R_ROOM ((unsigned short) 02)
#define R_MAZE ((unsigned short) 04)
#define R_DEADEND ((unsigned short) 010)
#define R_CROSS ((unsigned short) 020)
#define MAX_EXP_LEVEL 21
#define MAX_EXP 10000001L
#define MAX_GOLD 999999
#define MAX_ARMOR 99
#define MAX_HP 999
#define MAX_STRENGTH 99
#define LAST_DUNGEON 99
#define STAT_LEVEL 01
#define STAT_GOLD 02
#define STAT_HP 04
#define STAT_STRENGTH 010
#define STAT_ARMOR 020
#define STAT_EXP 040
#define STAT_HUNGER 0100
#define STAT_LABEL 0200
#define STAT_ALL 0377
#define PARTY_TIME 10 /* one party somewhere in each 10 level span */
#define MAX_TRAPS 10 /* maximum traps per level */
#define HIDE_PERCENT 12
struct tr {
short trap_type;
short trap_row, trap_col;
};
typedef struct tr trap;
extern fighter rogue;
extern room rooms[];
extern trap traps[];
extern unsigned short dungeon[DROWS][DCOLS];
extern object level_objects;
extern struct id id_scrolls[];
extern struct id id_potions[];
extern struct id id_wands[];
extern struct id id_rings[];
extern struct id id_weapons[];
extern struct id id_armors[];
extern object mon_tab[];
extern object level_monsters;
#define MONSTERS 26
#define HASTED 01L
#define SLOWED 02L
#define INVISIBLE 04L
#define ASLEEP 010L
#define WAKENS 020L
#define WANDERS 040L
#define FLIES 0100L
#define FLITS 0200L
#define CAN_FLIT 0400L /* can, but usually doesn't, flit */
#define CONFUSED 01000L
#define RUSTS 02000L
#define HOLDS 04000L
#define FREEZES 010000L
#define STEALS_GOLD 020000L
#define STEALS_ITEM 040000L
#define STINGS 0100000L
#define DRAINS_LIFE 0200000L
#define DROPS_LEVEL 0400000L
#define SEEKS_GOLD 01000000L
#define FREEZING_ROGUE 02000000L
#define RUST_VANISHED 04000000L
#define CONFUSES 010000000L
#define IMITATES 020000000L
#define FLAMES 040000000L
#define STATIONARY 0100000000L /* damage will be 1,2,3,... */
#define NAPPING 0200000000L /* can't wake up for a while */
#define ALREADY_MOVED 0400000000L
#define SPECIAL_HIT (RUSTS|HOLDS|FREEZES|STEALS_GOLD|STEALS_ITEM|STINGS|DRAINS_LIFE|DROPS_LEVEL)
#define WAKE_PERCENT 45
#define FLIT_PERCENT 40
#define PARTY_WAKE_PERCENT 75
#define HYPOTHERMIA 1
#define STARVATION 2
#define POISON_DART 3
#define QUIT 4
#define WIN 5
#define KFIRE 6
#define UPWARD 0
#define UPRIGHT 1
#define RIGHT 2
#define DOWNRIGHT 3
#define DOWN 4
#define DOWNLEFT 5
#define LEFT 6
#define UPLEFT 7
#define DIRS 8
#define ROW1 7
#define ROW2 15
#define COL1 26
#define COL2 52
#define MOVED 0
#define MOVE_FAILED -1
#define STOPPED_ON_SOMETHING -2
#define CANCEL '\033'
#define LIST '*'
#define HUNGRY 300
#define WEAK 150
#define FAINT 20
#define STARVE 0
#define MIN_ROW 1
struct rogue_time {
short year; /* >= 1987 */
short month; /* 1 - 12 */
short day; /* 1 - 31 */
short hour; /* 0 - 23 */
short minute; /* 0 - 59 */
short second; /* 0 - 59 */
};
#ifdef CURSES
struct _win_st {
short _cury, _curx;
short _maxy, _maxx;
};
typedef struct _win_st WINDOW;
extern int LINES, COLS;
extern WINDOW *curscr;
extern char *CL;
#else
#include <curses.h>
#endif
/*
* external routine declarations.
*/
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
object *alloc_object __P((void));
object *check_duplicate __P((object *, object *));
const char *get_ench_color __P((void));
object *get_letter_object __P((int));
object *get_thrown_at_monster __P((object *, short, short *, short *));
object *get_zapped_monster __P((short, short *, short *));
object *gr_monster __P((object *, int));
object *gr_object __P((void));
char *md_getenv __P((const char *));
const char *
md_gln __P((void));
char *md_malloc __P((int));
const char *mon_name __P((const object *));
const char *name_of __P((const object *));
object *object_at __P((object *, short, short));
object *pick_up __P((int, int, short *));
void add_exp __P((int, boolean));
void add_mazes __P((void));
void add_traps __P((void));
void aggravate __P((void));
void aim_monster __P((object *));
void bounce __P((short, short, short, short, short));
void byebye __P((int));
void c_object_for_wizard __P((void));
void call_it __P((void));
boolean can_move __P((int, int, int, int));
boolean can_turn __P((int, int));
void center __P((short, const char *));
void check_gold_seeker __P((object *));
boolean check_hunger __P((boolean));
boolean check_imitator __P((object *));
void check_message __P((void));
int check_up __P((void));
void clean_up __P((const char *)) __attribute__((__noreturn__));
void clear_level __P((void));
void cnfs __P((void));
int coin_toss __P((void));
int connect_rooms __P((short, short));
void cough_up __P((object *));
void create_monster __P((void));
int damage_for_strength __P((void));
void darken_room __P((short));
void disappear __P((object *));
void do_args __P((int, char **));
void do_opts __P((void));
void do_put_on __P((object *, boolean));
void do_shell __P((void));
void do_wear __P((object *));
void do_wield __P((object *));
void dr_course __P((object *, boolean, short, short));
void drain_life __P((void));
void draw_magic_map __P((void));
void draw_simple_passage __P((short, short, short, short, short));
void drop __P((void));
int drop_check __P((void));
void drop_level __P((void));
void eat __P((void));
void edit_opts __P((void));
void env_get_value __P((char **, char *, boolean));
void error_save __P((int)) __attribute__((__noreturn__));
void fight __P((int));
void fill_it __P((int, boolean));
void fill_out_level __P((void));
boolean flame_broil __P((object *));
int flit __P((object *));
void flop_weapon __P((object *, short, short));
void free_object __P((object *));
void free_stuff __P((object *));
void freeze __P((object *));
int get_armor_class __P((const object *));
int get_com_id __P((int *, short));
int get_damage __P((const char *, boolean));
void get_desc __P((const object *, char *));
int get_dir __P((short, short, short, short));
void get_dir_rc __P((short, short *, short *, short));
char get_dungeon_char __P((short, short));
int get_exp_level __P((long));
void get_food __P((object *, boolean));
int get_hit_chance __P((const object *));
int get_input_line __P((const char *, const char *, char *, const char *, boolean, boolean));
char get_mask_char __P((unsigned short));
int get_number __P((const char *));
boolean get_oth_room __P((short, short *, short *));
int get_rand __P((int, int));
short get_room_number __P((int, int));
int get_value __P((const object *));
int get_w_damage __P((const object *));
void get_wand_and_ring_materials __P((void));
int get_weapon_damage __P((const object *));
char gmc __P((object *));
char gmc_row_col __P((int, int));
void go_blind __P((void));
boolean gold_at __P((int, int));
void gr_armor __P((object *));
char gr_dir __P((void));
char gr_obj_char __P((void));
void gr_potion __P((object *));
void gr_ring __P((object *, boolean));
short gr_room __P((void));
void gr_row_col __P((short *, short *, unsigned short));
void gr_scroll __P((object *));
void gr_wand __P((object *));
void gr_weapon __P((object *, int));
void hallucinate __P((void));
boolean has_amulet __P((void));
boolean has_been_touched __P((const struct rogue_time *, const struct rogue_time *));
void heal __P((void));
void hide_boxed_passage __P((int, int, int, int, int));
void hold_monster __P((void));
int hp_raise __P((void));
void id_all __P((void));
void id_com __P((void));
void id_trap __P((void));
void id_type __P((void));
void idntfy __P((void));
boolean imitating __P((int, int));
int init __P((int, char **));
void init_str __P((char **, const char *));
void insert_score __P((char [][], char [][], const char *, short, short, const object *, int));
void inv_armor_weapon __P((boolean));
void inv_rings __P((void));
void inventory __P((const object *, unsigned short));
boolean is_all_connected __P((void));
boolean is_digit __P((int));
boolean is_direction __P((short, short *));
boolean is_pack_letter __P((short *, unsigned short *));
boolean is_passable __P((int, int));
boolean is_vowel __P((short));
void kick_into_pack __P((void));
void killed_by __P((const object *, short)) __attribute__((__noreturn__));
long lget_number __P((const char *));
void light_passage __P((int, int));
void light_up_room __P((int));
boolean m_confuse __P((object *));
void make_level __P((void));
void make_maze __P((short, short, short, short, short, short));
void make_party __P((void));
void make_room __P((short, short, short, short));
void make_scroll_titles __P((void));
boolean mask_pack __P((const object *, unsigned short));
boolean mask_room __P((short, short *, short *, unsigned short));
void md_cbreak_no_echo_nonl __P((boolean));
boolean md_df __P((const char *));
void md_exit __P((int)) __attribute__((__noreturn__));
void md_gct __P((struct rogue_time *));
char *md_gdtcf __P((void));
int md_get_file_id __P((const char *));
void md_gfmt __P((const char *, struct rogue_time *));
int md_gseed __P((void));
void md_heed_signals __P((void));
void md_ignore_signals __P((void));
int md_link_count __P((const char *));
void md_lock __P((boolean));
void md_shell __P((const char *));
void md_sleep __P((int));
void md_slurp __P((void));
void md_tstp __P((void));
void message __P((const char *, boolean));
void mix_colors __P((void));
void mix_colors __P((void));
void mix_random_rooms __P((void));
int mon_can_go __P((const object *, int, int));
int mon_damage __P((object *, short));
void mon_hit __P((object *));
boolean mon_sees __P((const object *, int, int));
int move_confused __P((object *));
void move_mon_to __P((object *, int, int));
void move_onto __P((void));
int mtry __P((object *, int, int));
void multiple_move_rogue __P((short));
void mv_1_monster __P((object *, int, int));
void mv_aquatars __P((void));
void mv_mons __P((void));
int name_cmp __P((char *, const char *));
short next_avail_ichar __P((void));
boolean next_to_something __P((int, int));
void nickize __P((char *, const char *, const char *));
int no_room_for_monster __P((int));
int one_move_rogue __P((short, short));
void onintr __P((int));
void opt_erase __P((int));
void opt_go __P((int));
void opt_show __P((int));
short pack_count __P((const object *));
short pack_letter __P((const char *, unsigned short));
void pad __P((const char *, short));
void party_monsters __P((int, int));
short party_objects __P((int));
void place_at __P((object *, int, int));
void plant_gold __P((int, int, boolean));
void play_level __P((void));
void player_init __P((void));
void player_init __P((void));
void potion_heal __P((int));
int pr_com_id __P((int));
int pr_motion_char __P((int));
void print_stats __P((int));
void put_amulet __P((void));
void put_door __P((room *, short, short *, short *));
void put_gold __P((void));
void put_m_at __P((int, int, object *));
void put_mons __P((void));
void put_objects __P((void));
void put_on_ring __P((void));
void put_player __P((short));
void put_scores __P((const object *, short)) __attribute__((__noreturn__));
void put_stairs __P((void));
void quaff __P((void));
void quit __P((boolean));
int r_index __P((const char *, int, boolean));
void r_read __P((FILE *, char *, int));
void r_write __P((FILE *, const char *, int));
void rand_around __P((short, short *, short *));
int rand_percent __P((int));
void rand_place __P((object *));
void read_pack __P((object *, FILE *, boolean));
void read_scroll __P((void));
void read_string __P((char *, FILE *));
void recursive_deadend __P((short, const short *, short, short));
boolean reg_move __P((void));
void relight __P((void));
void remessage __P((short));
void remove_ring __P((void));
void rest __P((int));
void restore __P((const char *));
int rgetchar __P((void));
void ring_stats __P((boolean));
int rogue_can_see __P((int, int));
void rogue_damage __P((short, object *, short));
void rogue_hit __P((object *, boolean));
int rogue_is_around __P((int, int));
long rrandom __P((void));
void rust __P((object *));
void rw_dungeon __P((FILE *, boolean));
void rw_id __P((struct id *, FILE *, int, boolean));
void rw_rooms __P((FILE *, boolean));
void s_con_mon __P((object *));
int same_col __P((int, int));
int same_row __P((int, int));
void save_game __P((void));
void save_into_file __P((const char *));
void save_screen __P((void));
void search __P((short, boolean));
boolean seek_gold __P((object *));
void sell_pack __P((void));
void sf_error __P((void)) __attribute__((__noreturn__));
void show_average_hp __P((void));
void show_monsters __P((void));
void show_objects __P((void));
void show_traps __P((void));
void single_inv __P((short));
void sound_bell __P((void));
void special_hit __P((object *));
void srrandom __P((int));
void start_window __P((void));
void start_window __P((void));
void steal_gold __P((object *));
void steal_item __P((object *));
void sting __P((object *));
void stop_window __P((void));
void stop_window __P((void));
void take_a_nap __P((void));
void take_from_pack __P((object *, object *));
void take_off __P((void));
void tele __P((void));
void tele_away __P((object *));
void throw __P((void));
boolean throw_at_monster __P((object *, object *));
int to_hit __P((const object *));
short trap_at __P((int, int));
void trap_player __P((int, int));
boolean try_to_cough __P((short, short, object *));
void turn_passage __P((short, boolean));
void un_put_on __P((object *));
void unblind __P((void));
void unconfuse __P((void));
void uncurse_all __P((void));
void unhallucinate __P((void));
void unwear __P((object *));
void unwield __P((object *));
void vanish __P((object *, short, object *));
void visit_rooms __P((int));
void wait_for_ack __P((void));
void wake_room __P((short, boolean, short, short));
void wake_up __P((object *));
void wanderer __P((void));
void wdrain_life __P((object *));
void wear __P((void));
void wield __P((void));
void win __P((void)) __attribute__((__noreturn__));
void wizardize __P((void));
void write_pack __P((const object *, FILE *));
void write_string __P((char *, FILE *));
long xxx __P((boolean));
void xxxx __P((char *, short));
void zap_monster __P((object *, unsigned short));
void zapp __P((void));
object *add_to_pack __P((object *, object *, int));
struct id *get_id_table __P((const object *));
unsigned short gr_what_is __P((void));
extern boolean ask_quit;
extern boolean being_held;
extern boolean cant_int;
extern boolean con_mon;
extern boolean detect_monster;
extern boolean did_int;
extern boolean interrupted;
extern boolean is_wood[];
extern boolean jump;
extern boolean maintain_armor;
extern boolean mon_disappeared;
extern boolean msg_cleared;
extern boolean no_skull;
extern boolean passgo;
extern boolean r_see_invisible;
extern boolean r_teleport;
extern boolean save_is_interactive;
extern boolean score_only;
extern boolean see_invisible;
extern boolean sustain_strength;
extern boolean trap_door;
extern boolean wizard;
extern char hit_message[];
extern char hunger_str[];
extern char login_name[];
extern const char *byebye_string;
extern const char *curse_message;
extern const char *error_file;
extern char *fruit;
extern const char *const m_names[];
extern const char *more;
extern const char *new_level_message;
extern char *nick_name;
extern const char *press_space;
extern char *save_file;
extern const char *you_can_move_again;
extern const long level_points[];
extern short add_strength;
extern short auto_search;
extern short bear_trap;
extern short blind;
extern short confused;
extern short cur_level;
extern short cur_room;
extern short e_rings;
extern short extra_hp;
extern short foods;
extern short halluc;
extern short haste_self;
extern short less_hp;
extern short levitate;
extern short m_moves;
extern short max_level;
extern short party_room;
extern short r_rings;
extern short regeneration;
extern short ring_exp;
extern short stealthy;
extern gid_t gid;
extern gid_t egid;
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