Early Roguelike Collection: arogue7/potions.c annotate

annotate arogue7/potions.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	80c060734f51
children	f057f09e9945

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 * potions.c - Function(s) for dealing with potions
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 * Function(s) for dealing with potions
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
126 b786053d2f37 arogue7: add missing header includes. John "Elwin" Edwards parents: 125 diff changeset	19 #include <stdlib.h>
125 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 "rogue.h"
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	22
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	23
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	24 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	25 * add_abil is an array of functions used to change attributes. It must be
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	26 * ordered according to the attribute definitions in rogue.h.
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
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	29 void (*add_abil[NUMABILITIES])() = {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	30 add_intelligence, add_strength, add_wisdom, add_dexterity,
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	31 add_constitution, add_charisma
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
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	34 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	35 * res_abil is an array of functions used to change attributes. It must be
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	36 * ordered according to the attribute definitions in rogue.h.
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 void (*res_abil[NUMABILITIES])() = {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	40 res_intelligence, res_strength, res_wisdom, res_dexterity,
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	41 res_constitution, res_charisma
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 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	45 * Increase player's constitution
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	46 */
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 void
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	49 add_constitution(change)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	50 int change;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	51 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	52 /* Do the potion */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	53 if (change < 0) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	54 msg("You feel less healthy now.");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	55 pstats.s_const += change;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	56 if (pstats.s_const <= 0)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	57 death(D_CONSTITUTION);
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 else {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	60 msg("You feel healthier now.");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	61 pstats.s_const = min(pstats.s_const + change, 25);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	62 }
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 /* Adjust the maximum */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	65 if (max_stats.s_const < pstats.s_const)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	66 max_stats.s_const = pstats.s_const;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	67 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	68
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 * Increase player's charisma
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	71 */
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 void
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	74 add_charisma(change)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	75 int change;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	76 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	77 /* Do the potion */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	78 if (change < 0) msg("You feel less attractive now.");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	79 else msg("You feel more attractive now.");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	80
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	81 pstats.s_charisma += change;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	82 if (pstats.s_charisma > 25) pstats.s_charisma = 25;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	83 else if (pstats.s_charisma < 3) pstats.s_charisma = 3;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	84
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	85 /* Adjust the maximum */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	86 if (max_stats.s_charisma < pstats.s_charisma)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	87 max_stats.s_charisma = pstats.s_charisma;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	88 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	89
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	90 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490) John "Elwin" Edwards parents: diff changeset	91 * Increase player's dexterity

Mercurial > hg > early-roguelike

annotate arogue7/potions.c @ 176:db1c9a21a7c3