view srogue/init.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 3aa87373c908
children 94a0d9dd5ce1
line wrap: on
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/*
 * initializate various things
 *
 * @(#)init.c	9.0	(rdk)	 7/17/84
 *
 * Super-Rogue
 * Copyright (C) 1984 Robert D. Kindelberger
 * All rights reserved.
 *
 * Based on "Rogue: Exploring the Dungeons of Doom"
 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 */

#include <ctype.h>
#include <string.h>
#include "rogue.h"
#include "rogue.ext"

char *rainbow[NCOLORS] = {
	"Red",		"Blue",		"Green",	"Yellow",
	"Black",	"Brown",	"Orange",	"Pink",
	"Purple",	"Grey",		"White",	"Silver",
	"Gold",		"Violet",	"Clear",	"Vermilion",
	"Ecru",		"Turquoise","Magenta",	"Amber",
	"Topaz",	"Plaid",	"Tan",		"Tangerine",
	"Aquamarine", "Scarlet","Khaki",	"Crimson",
	"Indigo",	"Beige",	"Lavender",	"Saffron",
};

char *sylls[NSYLS] = {
	"a", "ab", "ag", "aks", "ala", "an", "ankh", "app", "arg", "arze",
	"ash", "ban", "bar", "bat", "bek", "bie", "bin", "bit", "bjor",
	"blu", "bot", "bu", "byt", "comp", "con", "cos", "cre", "dalf",
	"dan", "den", "do", "e", "eep", "el", "eng", "er", "ere", "erk",
	"esh", "evs", "fa", "fid", "for", "fri", "fu", "gan", "gar",
	"glen", "gop", "gre", "ha", "he", "hyd", "i", "ing", "ion", "ip",
	"ish", "it", "ite", "iv", "jo", "kho", "kli", "klis", "la", "lech",
	"man", "mar", "me", "mi", "mic", "mik", "mon", "mung", "mur",
	"nej", "nelg", "nep", "ner", "nes", "nes", "nih", "nin", "o", "od",
	"ood", "org", "orn", "ox", "oxy", "pay", "pet", "ple", "plu", "po",
	"pot","prok","re", "rea", "rhov", "ri", "ro", "rog", "rok", "rol",
	"sa", "san", "sat", "see", "sef", "seh", "shu", "ski", "sna",
	"sne", "snik", "sno", "so", "sol", "sri", "sta", "sun", "ta",
	"tab", "tem", "ther", "ti", "tox", "trol", "tue", "turs", "u",
	"ulk", "um", "un", "uni", "ur", "val", "viv", "vly", "vom", "wah",
	"wed", "werg", "wex", "whon", "wun", "xo", "y", "yot", "yu",
	"zant", "zap", "zeb", "zim", "zok", "zon", "zum",
};

char *stones[] = {
	"Agate",		"Alexandrite",	"Amethyst",
	"Azurite",		"Carnelian",	"Chrysoberyl",
	"Chrysoprase",	"Citrine",		"Diamond",
	"Emerald",		"Garnet",		"Hematite",
	"Jacinth",		"Jade",			"Kryptonite",
	"Lapus lazuli",	"Malachite",	"Moonstone",
	"Obsidian",		"Olivine",		"Onyx",
	"Opal",			"Pearl",		"Peridot",
	"Quartz",		"Rhodochrosite","Ruby",
	"Sapphire",		"Sardonyx",		"Serpintine",
	"Spinel",		"Tiger eye",	"Topaz",
	"Tourmaline",	"Turquoise",
};

char *wood[NWOOD] = {
	"Avocado wood",	"Balsa",	"Banyan",		"Birch",
	"Cedar",		"Cherry",	"Cinnibar",		"Dogwood",
	"Driftwood",	"Ebony",	"Eucalyptus",	"Hemlock",
	"Ironwood",		"Mahogany",	"Manzanita",	"Maple",
	"Oak",			"Pine",		"Redwood",		"Rosewood",
	"Teak",			"Walnut",	"Zebra wood", 	"Persimmon wood",
};

char *metal[NMETAL] = {
	"Aluminium",	"Bone",		"Brass",	"Bronze",
	"Copper",		"Chromium",	"Iron",		"Lead",
	"Magnesium",	"Pewter",	"Platinum",	"Steel",
	"Tin",			"Titanium",	"Zinc",
};

/*
 * init_everything:
 *	Set up all important stuff.
 */
init_everything()
{
	init_player();			/* Roll up the rogue */
	init_things();			/* Set up probabilities */
	init_names();			/* Set up names of scrolls */
	init_colors();			/* Set up colors of potions */
	init_stones();			/* Set up stones in rings */
	init_materials();		/* Set up materials of wands */
}

/*
 * init_things:
 *	Initialize the probabilities for types of things
 */
init_things()
{
	struct magic_item *mi;
	
	/*
	 * init general things
	 */
	for (mi = &things[1]; mi < &things[NUMTHINGS]; mi++)
		mi->mi_prob += (mi-1)->mi_prob;
	badcheck("things", things);
	/*
	 * init armor things
	 */
	for (mi = &a_magic[1]; mi < &a_magic[MAXARMORS]; mi++)
		mi->mi_prob += (mi-1)->mi_prob;
	badcheck("armor", a_magic);
	/*
	 * init weapon stuff
	 */
	for (mi = &w_magic[1]; mi < &w_magic[MAXWEAPONS]; mi++)
		mi->mi_prob += (mi-1)->mi_prob;
	badcheck("weapon", w_magic);
}


/*
 * init_colors:
 *	Initialize the potion color scheme for this time
 */
init_colors()
{
	reg int i, j;
	reg char *str;
	bool used[NCOLORS];

	for (i = 0; i < NCOLORS; i++)
		used[i] = FALSE;
	for (i = 0; i < MAXPOTIONS; i++) {
		do {
			j = rnd(NCOLORS);
		} until (!used[j]);
		used[j] = TRUE;
		p_colors[i] = rainbow[j];
		p_know[i] = FALSE;
		p_guess[i] = NULL;
		if (i > 0)
			p_magic[i].mi_prob += p_magic[i-1].mi_prob;
	}
	badcheck("potions", p_magic);
}


/*
 * init_names:
 *	Generate the names of the various scrolls
 */
init_names()
{
	reg int nsyl;
	reg char *cp, *sp;
	reg int i, nwords;

	for (i = 0; i < MAXSCROLLS; i++) {
		cp = prbuf;
		nwords = rnd(3)+1;
		while(nwords--)	{
			nsyl = rnd(3)+2;
			while(nsyl--) {
				sp = sylls[rnd(NSYLS)];
				while(*sp)
					*cp++ = *sp++;
			}
			*cp++ = ' ';
		}
		*--cp = '\0';
		s_names[i] = new(strlen(prbuf)+1);
		s_know[i] = FALSE;
		s_guess[i] = NULL;
		strcpy(s_names[i], prbuf);
		if (i > 0)
			s_magic[i].mi_prob += s_magic[i-1].mi_prob;
	}
	badcheck("scrolls", s_magic);
}

/*
 * init_stones:
 *	Initialize the ring stone setting scheme for this time
 */

init_stones()
{
	reg int i, j;
	reg char *str;
	bool used[NSTONES];

	for (i = 0; i < NSTONES; i++)
		used[i] = FALSE;

	for (i = 0; i < MAXRINGS; i++) {
		do {
			j = rnd(NSTONES);
		} until (!used[j]);
		used[j] = TRUE;
		r_stones[i] = stones[j];
		r_know[i] = FALSE;
		r_guess[i] = NULL;
		if (i > 0)
			r_magic[i].mi_prob += r_magic[i-1].mi_prob;
	}
	badcheck("rings", r_magic);
}

/*
 * init_materials:
 *	Initialize the construction materials for wands and staffs
 */

init_materials()
{
	int i, j;
	char *str;
	struct rod *rd;
	bool metused[NMETAL], woodused[NWOOD];

	for (i = 0; i < NWOOD; i++)
		woodused[i] = FALSE;
	for (i = 0; i < NMETAL; i++)
		metused[i] = FALSE;

	for (i = 0; i < MAXSTICKS; i++) {
		rd = &ws_stuff[i];
		for (;;)  {
			if (rnd(100) > 50) {
				j = rnd(NMETAL);
				if (!metused[j]) {
					str = metal[j];
					rd->ws_type = "wand";
					rd->ws_vol = V_WS_WAND;
					rd->ws_wght = W_WS_WAND;
					metused[j] = TRUE;
					break;
				}
			}
			else {
				j = rnd(NWOOD);
				if (!woodused[j]) {
					str = wood[j];
					rd->ws_type = "staff";
					rd->ws_vol = V_WS_STAFF;
					rd->ws_wght = W_WS_WAND;
					woodused[j] = TRUE;
					break;
				}
			}
		} 
		ws_stuff[i].ws_made = str;
		ws_know[i] = FALSE;
		ws_guess[i] = NULL;
		if (i > 0)
			ws_magic[i].mi_prob += ws_magic[i-1].mi_prob;
	}
	badcheck("sticks", ws_magic);
}

badcheck(name, magic)
char *name;
struct magic_item *magic;
{
	struct magic_item *mg;

	for (mg = magic; mg->mi_name != NULL; mg++)
		;
	if ((mg - 1)->mi_prob == 1000)
		return;
	printf("\nBad percentages for %s:\n", name);
	for (mg = magic; mg->mi_name != NULL; mg++)
		printf("%4d%% %s\n", mg->mi_prob, mg->mi_name);
	printf("%s", retstr);
	fflush(stdout);
	while (getchar() != '\n')
		continue;
}


/*
 * init_player:
 *	roll up the rogue
 */

init_player()
{
	player.t_nomove = 0;
	player.t_nocmd = 0;
	him = &player.t_stats;
	him->s_lvl = 1;
	him->s_exp = 0L;
	him->s_maxhp = him->s_hpt = pinit();		/* hit points */
	him->s_re.a_str = pinit();		/* strength */
	him->s_re.a_dex = pinit();		/* dexterity */
	him->s_re.a_wis = pinit();		/* wisdom */
	him->s_re.a_con = pinit();		/* constitution */
	him->s_ef = him->s_re;			/* effective = real */
	strcpy(him->s_dmg, "1d4");
	him->s_arm = NORMAC;
	him->s_carry = totalenc();
	him->s_pack = 0;
	pack = NULL;				/* empty pack so far */
	max_stats = *him;
}


/*
 * pinit:
 *	Returns the best 3 of 4 on a 6-sided die
 */
pinit()
{
	int best[4];
	reg int i, min, minind, dicetot;

	for (i = 0 ; i < 4 ; i++)
		best[i] = roll(1,6);	/* populate array */
	min = best[0];				/* assume that 1st entry */
	minind = 0;					/* is the lowest */
	for (i = 1 ; i < 4 ; i++) {	/* find the lowest */
		if (best[i] < min) {	/* if < minimum then update */
			min = best[i];
			minind = i;			/* point to lowest value */
		}
	}
	dicetot = 0;				/* start with nothing */
	for (i = 0 ; i < 4 ; i++) {
		if (i != minind)		/* if not minimum, then add it */
			dicetot += best[i];
	}
	return(dicetot);
}