The patch below does some minor cleanup of adventure(6): an additional

use of const I missed in bin/6041; avoiding a signed/unsigned warning;
marking an unused parameter as such; revoking setgid privileges
(including the saved gid) rather than setuid ones; includes and
function prototypes in setup.c; the string passed to err() should not
end with a `.'.  Together with the patch sent concerning adventure's
EOF handling, this synchronises adventure(6) in NetBSD with the Linux
port of the NetBSD games.

Via PR 6557 by Joseph Myers <jsm28@cam.ac.uk>

Author: hubertf

games/adventure/crc.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: crc.c,v 1.6 1998/09/13 00:07:24 hubertf Exp $	*/
+/*	$NetBSD: crc.c,v 1.7 1999/02/10 00:29:21 hubertf Exp $	*/
 
 /*-
  * Copyright (c) 1993
@@ -42,13 +42,13 @@
 static char sccsid[] = "@(#)crc.c	8.1 (Berkeley) 5/31/93";
 static char ORIGINAL_sccsid[] = "@(#)crc.c	5.2 (Berkeley) 4/4/91";
 #else
-__RCSID("$NetBSD: crc.c,v 1.6 1998/09/13 00:07:24 hubertf Exp $");
+__RCSID("$NetBSD: crc.c,v 1.7 1999/02/10 00:29:21 hubertf Exp $");
 #endif
 #endif /* not lint */
 
 #include "extern.h"
 
-unsigned long crctab[] = {
+const unsigned long crctab[] = {
 	0x7fffffff,
 	0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
 	0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e,
@@ -111,7 +111,7 @@ unsigned long crctab[] = {
  */
 
 unsigned long crcval;
-int     step;
+unsigned int step;
 
 void
 crc_start()

games/adventure/main.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: main.c,v 1.12 1998/09/14 09:29:08 hubertf Exp $	*/
+/*	$NetBSD: main.c,v 1.13 1999/02/10 00:29:21 hubertf Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -48,7 +48,7 @@ __COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
 #if 0
 static char sccsid[] = "@(#)main.c	8.1 (Berkeley) 6/2/93";
 #else
-__RCSID("$NetBSD: main.c,v 1.12 1998/09/14 09:29:08 hubertf Exp $");
+__RCSID("$NetBSD: main.c,v 1.13 1999/02/10 00:29:21 hubertf Exp $");
 #endif
 #endif /* not lint */
 
@@ -73,9 +73,8 @@ main(argc, argv)
 	int     rval, ll;
 	struct text *kk;
 
-	/* adventure doesn't need setuid-ness, so, just get rid of it */
-	if (setuid(getuid()) < 0)
-		warn("setuid");
+	/* revoke setgid privileges from dm */
+	setregid(getgid(), getgid());
 
 	init();		/* Initialize everything */
 	signal(SIGINT, trapdel);

games/adventure/setup.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: setup.c,v 1.5 1998/09/13 15:23:40 hubertf Exp $	*/
+/*	$NetBSD: setup.c,v 1.6 1999/02/10 00:29:21 hubertf Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -46,7 +46,7 @@ __COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
 #if 0
 static char sccsid[] = "@(#)setup.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: setup.c,v 1.5 1998/09/13 15:23:40 hubertf Exp $");
+__RCSID("$NetBSD: setup.c,v 1.6 1999/02/10 00:29:21 hubertf Exp $");
 #endif
 #endif				/* not lint */
 
@@ -64,6 +64,8 @@ __RCSID("$NetBSD: setup.c,v 1.5 1998/09/13 15:23:40 hubertf Exp $");
 #define SIG2 " *      Sterday, 6 Thrimidge S.R. 1993, 15:24"
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <err.h>
 #include "hdr.h"		/* SEED lives in there; keep them coordinated. */
 
 #define USAGE "Usage: setup file > data.c (file is typically glorkz)"
@@ -73,6 +75,8 @@ __RCSID("$NetBSD: setup.c,v 1.5 1998/09/13 15:23:40 hubertf Exp $");
 
 #define LINE 10			/* How many values do we get on a line? */
 
+int main __P((int, char *[]));
+
 int
 main(argc, argv)
 	int     argc;
@@ -85,7 +89,7 @@ main(argc, argv)
 		errx(1, USAGE);
 
 	if ((infile = fopen(argv[1], "r")) == NULL)
-		err(1, "Can't read file %s.", argv[1]);
+		err(1, "Can't read file %s", argv[1]);
 	puts("/*\n * data.c: created by setup from the ascii data file.");
 	puts(SIG1);
 	puts(SIG2);