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For now, these games still contain deterministic randomization (for

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save / replay modes of operation that have not yet been cleaned up).
OK, I've let the cat out of the bag, now some of you know you can cheat
at them..
ok millert guenther tedu
This commit is contained in:
deraadt 2014-12-08 21:56:27 +00:00
parent 5a944dae11
commit f84032eda8
9 changed files with 14 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
games/adventure/hdr.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: hdr.h,v 1.13 2014/07/13 19:40:57 tedu Exp $ */
/* $OpenBSD: hdr.h,v 1.14 2014/12/08 21:56:27 deraadt Exp $ */
/* $NetBSD: hdr.h,v 1.2 1995/03/21 12:05:02 cgd Exp $ */
/*-
@ -83,8 +83,6 @@ struct hashtab { /* hash table for vocabulary */
char *atab; /* pointer to actual string */
} voc[HTSIZE];
#define SEED 1815622 /* "obfuscation" seed */
struct text {
#ifdef OLDSTUFF
int seekadr; /* DATFILE must be < 2**16 */

3
games/adventure/init.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: init.c,v 1.11 2009/10/27 23:59:23 deraadt Exp $ */
/* $OpenBSD: init.c,v 1.12 2014/12/08 21:56:27 deraadt Exp $ */
/* $NetBSD: init.c,v 1.4 1996/05/21 21:53:05 mrg Exp $ */
/*-
@ -213,7 +213,6 @@ void
startup(void)
{
demo = Start();
srandomdev();
hinted[3] = yes(65, 1, 0);
newloc = 1;
delhit = 0;

3
games/adventure/io.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: io.c,v 1.18 2014/07/13 19:40:57 tedu Exp $ */
/* $OpenBSD: io.c,v 1.19 2014/12/08 21:56:27 deraadt Exp $ */
/* $NetBSD: io.c,v 1.3 1995/04/24 12:21:37 cgd Exp $ */
/*-
@ -201,7 +201,6 @@ rdata(void) /* "read" data from virtual file */
char ch;
inptr = data_file; /* Pointer to virtual data file */
srandom(SEED); /* which is slightly obfuscated.*/
clsses = 1;
for (;;) { /* read data sections */

6
games/adventure/save.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: save.c,v 1.9 2014/07/13 19:40:57 tedu Exp $ */
/* $OpenBSD: save.c,v 1.10 2014/12/08 21:56:27 deraadt Exp $ */
/* $NetBSD: save.c,v 1.2 1995/03/21 12:05:08 cgd Exp $ */
/*-
@ -127,7 +127,7 @@ save(const char *outfile)
crc_start();
for (p = save_array; p->address != NULL; p++)
sum = crc(p->address, p->width);
srandom((int) sum);
srandom_deterministic((int) sum);
if ((out = fopen(outfile, "wb")) == NULL) {
fprintf(stderr,
@ -163,7 +163,7 @@ restore(const char *infile)
}
fread(&sum, sizeof(sum), 1, in); /* Get the seed */
srandom((unsigned int) sum);
srandom_deterministic((unsigned int) sum);
for (p = save_array; p->address != NULL; p++) {
fread(p->address, p->width, 1, in);
for (s = p->address, i = 0; i < p->width; i++, s++)

4
games/adventure/setup.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: setup.c,v 1.10 2014/07/13 19:40:57 tedu Exp $ */
/* $OpenBSD: setup.c,v 1.11 2014/12/08 21:56:27 deraadt Exp $ */
/* $NetBSD: setup.c,v 1.2 1995/03/21 12:05:10 cgd Exp $ */
/*-
@ -49,7 +49,6 @@
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include "hdr.h" /* SEED lives in there; keep them coordinated. */
#define USAGE "Usage: setup file > data.c (file is typically glorkz)\n"
@ -76,7 +75,6 @@ main(int argc, char *argv[])
puts(SIG2);
puts(" */");
printf("\n\nchar data_file[] =\n{");
srandom(SEED);
count = 0;
linestart = YES;

4
games/atc/update.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: update.c,v 1.14 2014/07/13 14:01:04 tedu Exp $ */
/* $OpenBSD: update.c,v 1.15 2014/12/08 21:56:27 deraadt Exp $ */
/*-
* Copyright (c) 1990, 1993
@ -48,7 +48,7 @@ void
setseed(const char *seed)
{
seeded = 1;
srandom(atol(seed));
srandom_deterministic(atol(seed));
}
uint32_t

5
games/hack/hack.main.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: hack.main.c,v 1.15 2009/10/27 23:59:25 deraadt Exp $ */
/* $OpenBSD: hack.main.c,v 1.16 2014/12/08 21:56:27 deraadt Exp $ */
/*
* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@ -177,7 +177,6 @@ main(int argc, char **argv)
gettty();
setbuf(stdout,obuf);
umask(007);
srandomdev();
startup();
cls();
u.uhp = 1; /* prevent RIP on early quits */
@ -275,7 +274,7 @@ main(int argc, char **argv)
if ((sfoo = getenv("MAGIC")))
while(*sfoo) {
switch(*sfoo++) {
case 'n': (void) srandom(*sfoo++);
case 'n': (void) srandom_deterministic(*sfoo++);
break;
}
}

3
games/trek/main.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: main.c,v 1.12 2009/10/27 23:59:27 deraadt Exp $ */
/* $OpenBSD: main.c,v 1.13 2014/12/08 21:56:28 deraadt Exp $ */
/* $NetBSD: main.c,v 1.4 1995/04/22 10:59:10 cgd Exp $ */
/*
@ -127,7 +127,6 @@ main(argc, argv)
av = argv;
ac = argc;
av++;
srandomdev();
#ifdef xTRACE
Trace = 0;

4
games/trek/setup.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: setup.c,v 1.9 2013/08/29 14:35:49 naddy Exp $ */
/* $OpenBSD: setup.c,v 1.10 2014/12/08 21:56:28 deraadt Exp $ */
/* $NetBSD: setup.c,v 1.4 1995/04/24 12:26:06 cgd Exp $ */
/*
@ -105,7 +105,7 @@ setup()
d = 0;
for (i = 0; Game.passwd[i]; i++)
d += Game.passwd[i] << i;
srandom(d);
srandom_deterministic(d);
}
Param.bases = Now.bases = ranf(6 - Game.skill) + 2;
if (Game.skill == 6)