Early Roguelike Collection: arogue7/move.c annotate

annotate arogue7/move.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	a0a57cf42810
children	1cd604c827a3

rev	line source
125 adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	1 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	2 * move.c - Hero movement commands
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	3 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	4 * Advanced Rogue
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	6 * All rights reserved.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	7 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	8 * Based on "Rogue: Exploring the Dungeons of Doom"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	10 * All rights reserved.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	11 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	12 * See the file LICENSE.TXT for full copyright and licensing information.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	13 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	14
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	15 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	16 * Hero movement commands
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	17 *
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	18 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	19
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	20 #include "curses.h"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	21 #include <ctype.h>
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	22 #include "rogue.h"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	23 #ifdef PC7300
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	24 #include "menu.h"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	25 #endif
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	26
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	27 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	28 * Used to hold the new hero position
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	29 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	30
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	31 static coord nh;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	32
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	33 static char Moves[3][3] = {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	34 { 'y', 'k', 'u' },
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	35 { 'h', '.', 'l' },
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	36 { 'b', 'j', 'n' }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	37 };
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	38
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	39 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	40 * be_trapped:
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	41 * The guy stepped on a trap.... Make him pay.
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	42 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	43
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	44 be_trapped(th, tc)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	45 register struct thing *th;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	46 register coord *tc;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	47 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	48 register struct trap *tp;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	49 register char ch, *mname;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	50 register bool is_player = (th == &player),
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	51 can_see;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	52 register struct linked_list *mitem;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	53 register struct thing *mp;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	54
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	55
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	56 /* Can the player see the creature? */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	57 can_see = (cansee(tc->y, tc->x) && (is_player \|\| !invisible(th)));
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	58
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	59 tp = trap_at(tc->y, tc->x);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	60 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	61 * if he's wearing boots of elvenkind, he won't set off the trap
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	62 * unless its a magic pool (they're not really traps)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	63 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	64 if (is_player &&
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	65 cur_misc[WEAR_BOOTS] != NULL &&
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	66 cur_misc[WEAR_BOOTS]->o_which == MM_ELF_BOOTS &&
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	67 tp->tr_type != POOL)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	68 return '\0';
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	69
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	70 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	71 * if the creature is flying then it won't set off the trap
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	72 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	73 if (on(*th, ISFLY))
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	74 return '\0';
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	75
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	76 tp->tr_flags \|= ISFOUND;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	77
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	78 if (!is_player) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	79 mitem = find_mons(th->t_pos.y, th->t_pos.x);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	80 mname = monster_name(th);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	81 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	82 else {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	83 count = running = FALSE;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	84 mvwaddch(cw, tp->tr_pos.y, tp->tr_pos.x, tp->tr_type);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	85 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	86 switch (ch = tp->tr_type) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	87 case TRAPDOOR:
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	88 if (is_player) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	89 level++;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	90 pstats.s_hpt -= roll(1, 10);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	91 if (pstats.s_hpt <= 0) death(D_FALL);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	92 new_level(NORMLEV);
167

Mercurial > hg > early-roguelike

annotate arogue7/move.c @ 176:db1c9a21a7c3