Fix hack(6).

- Write savegames and scorefiles to the current directory instead of /var
- Save oc_name and oc_descr alongside oc_uname in all situations
- When a levitation potion times out, explicitly float down

These patches were contributed last year by "tonypony76"; thanks!

ok deraadt@, with added enthusiasm from tedu@

etc/mtree/4.4BSD.dist

@@ -1,4 +1,4 @@
-#	$OpenBSD: 4.4BSD.dist,v 1.308 2019/04/01 07:21:37 deraadt Exp $
+#	$OpenBSD: 4.4BSD.dist,v 1.309 2019/04/05 09:02:27 bentley Exp $
 
 /set type=dir uname=root gname=wheel mode=0755
 
@@ -433,6 +433,8 @@ usr
             ..
             fortune
             ..
+            hack
+            ..
             quiz.db
             ..
         ..
@@ -634,10 +636,6 @@ var
 
     # ./var/games
     games			uname=root gname=games mode=0775
-        hackdir			uname=root gname=games mode=0775
-            save		uname=root gname=games mode=0770
-            ..
-        ..
         save			uname=root gname=games mode=0775
         ..
         phantasia		uname=root gname=games mode=0775

games/hack/Makefile

@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.16 2017/07/10 21:30:37 espie Exp $
+#	$OpenBSD: Makefile,v 1.17 2019/04/05 09:02:27 bentley Exp $
 
 PROG=	hack
 CFLAGS+=-I.
@@ -27,12 +27,7 @@ makedefs: makedefs.c
 	${HOSTCC} ${CFLAGS} ${LDFLAGS} ${LDSTATIC} -o ${.TARGET} ${.CURDIR}/${.PREFIX}.c ${LDADD}
 
 beforeinstall: 
-	${INSTALL} ${INSTALL_COPY} -o root -g games -m 660 /dev/null \
-	    ${DESTDIR}/var/games/hackdir/perm
-	${INSTALL} ${INSTALL_COPY} -o root -g games -m 660 /dev/null \
-	    ${DESTDIR}/var/games/hackdir/record
 	${INSTALL} ${INSTALL_COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/help \
-	    ${.CURDIR}/hh ${.CURDIR}/data ${DESTDIR}/var/games/hackdir
-	rm -f ${DESTDIR}/var/games/hackdir/bones*
+	    ${.CURDIR}/hh ${.CURDIR}/data ${.CURDIR}/rumors ${DESTDIR}/usr/share/games/hack
 
 .include <bsd.prog.mk>

games/hack/config.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: config.h,v 1.13 2015/10/16 07:37:46 tobias Exp $ */
+/*	$OpenBSD: config.h,v 1.14 2019/04/05 09:02:27 bentley Exp $ */
 /* *	$NetBSD: config.h,v 1.3 1995/03/23 08:29:15 cgd Exp $*/
 
 /*
@@ -77,10 +77,10 @@
 #define WIZARD  "bruno"	/* the person allowed to use the -D option */
 #define RECORD	"record"/* the file containing the list of topscorers */
 #define	NEWS	"news"	/* the file containing the latest hack news */
-#define	HELP	"help"	/* the file containing a description of the commands */
-#define	SHELP	"hh"	/* abbreviated form of the same */
-#define	RUMORFILE	"rumors"	/* a file with fortune cookies */
-#define	DATAFILE	"data"	/* a file giving the meaning of symbols used */
+#define	HELP	"/usr/share/games/hack/help"	/* the file containing a description of the commands */
+#define	SHELP	"/usr/share/games/hack/hh"	/* abbreviated form of the same */
+#define	RUMORFILE	"/usr/share/games/hack/rumors"	/* a file with fortune cookies */
+#define	DATAFILE	"/usr/share/games/hack/data"	/* a file giving the meaning of symbols used */
 #define	FMASK	0660	/* file creation mask */
 #define	HLOCK	"perm"	/* an empty file used for locking purposes */
 #define LLOCK	"safelock"	/* link to previous */
@@ -93,7 +93,7 @@
  * (This might be preferable for security reasons.)
  * #define DEF_PAGER	".../mydir/mypager"
  */
-#define	DEF_PAGER	_PATH_PAGER
+/* #define	DEF_PAGER	_PATH_PAGER */
 
 /*
  * If you define MAIL, then the player will be notified of new mail
@@ -120,7 +120,7 @@
 #ifdef QUEST
 #define HACKDIR _PATH_QUEST
 #else /* QUEST */
-#define HACKDIR	_PATH_HACK
+/* #define HACKDIR	_PATH_HACK */
 #endif /* QUEST */
 
 /*
@@ -130,7 +130,7 @@
  * since the user might create files in a directory of his choice.
  * Of course SECURE is meaningful only if HACKDIR is defined.
  */
-#define SECURE			/* do setuid(getuid()) after chdir() */
+/* #define SECURE */			/* do setuid(getuid()) after chdir() */
 
 /*
  * If it is desirable to limit the number of people that can play Hack

games/hack/hack.6

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: hack.6,v 1.20 2016/09/09 15:32:28 tb Exp $
+.\"	$OpenBSD: hack.6,v 1.21 2019/04/05 09:02:27 bentley Exp $
 .\"	$NetBSD: hack.6,v 1.5 1995/07/03 19:44:30 jtc Exp $
 .\"
 .\" Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -59,7 +59,7 @@
 .\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 .\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: September 9 2016 $
+.Dd $Mdocdate: April 5 2019 $
 .Dt HACK 6
 .Os
 .Sh NAME
@@ -75,13 +75,6 @@
 .Op Fl d Ar directory
 .Op Ar playername ...
 .Sh DESCRIPTION
-.Bf -symbolic
-.Nm
-is currently unusable because it relies on
-.Xr setgid 2
-to allow multiple users read and write access to the same files.
-.Ef
-.Pp
 .Nm
 is a display oriented dungeons & dragons - like game.
 Both display and command structure resemble rogue.
@@ -121,9 +114,6 @@ This same directory contains several auxiliary files such as lockfiles and
 the list of topscorers and a subdirectory
 .Pa save
 where games are saved.
-The game administrator may however choose to install hack with a fixed
-playing ground, usually
-.Pa /var/games/hackdir .
 .Pp
 The
 .Fl n

games/hack/hack.main.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: hack.main.c,v 1.22 2016/01/09 21:54:11 mestre Exp $	*/
+/*	$OpenBSD: hack.main.c,v 1.23 2019/04/05 09:02:27 bentley Exp $	*/
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -62,6 +62,7 @@
  */
 
 #include <sys/stat.h>
+#include <errno.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -538,6 +539,8 @@ chdirx(char *dir, boolean wr)
 	}
 
 	/* warn the player if he cannot write the record file */
+	/* warn the player if he cannot read the permanent lock file */
+	/* warn the player if he cannot create the save directory */
 	/* perhaps we should also test whether . is writable */
 	/* unfortunately the access systemcall is worthless */
 	if(wr) {
@@ -545,11 +548,20 @@ chdirx(char *dir, boolean wr)
 
 	    if(dir == NULL)
 		dir = ".";
-	    if((fd = open(RECORD, O_RDWR)) < 0) {
+	    if((fd = open(RECORD, O_RDWR | O_CREAT, FMASK)) < 0) {
 		printf("Warning: cannot write %s/%s", dir, RECORD);
 		getret();
 	    } else
 		(void) close(fd);
+	    if((fd = open(HLOCK, O_RDONLY | O_CREAT, FMASK)) < 0) {
+		printf("Warning: cannot read %s/%s", dir, HLOCK);
+		getret();
+	    } else
+		(void) close(fd);
+	    if(mkdir("save", 0770) && errno != EEXIST) {
+		printf("Warning: cannot create %s/save", dir);
+		getret();
+	    }
 	}
 }
 #endif

games/hack/hack.o_init.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: hack.o_init.c,v 1.8 2016/01/09 21:54:11 mestre Exp $	*/
+/*	$OpenBSD: hack.o_init.c,v 1.9 2019/04/05 09:02:27 bentley Exp $	*/
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -173,18 +173,29 @@ savenames(int fd)
 {
 	int i;
 	unsigned len;
+	unsigned zero = 0;
 
 	bwrite(fd, bases, sizeof bases);
 	bwrite(fd, objects, sizeof objects);
-	/* as long as we use only one version of Hack/Quest we
-	   need not save oc_name and oc_descr, but we must save
-	   oc_uname for all objects */
 	for(i=0; i < SIZE(objects); i++) {
+		if(objects[i].oc_name) {
+			len = strlen(objects[i].oc_name)+1;
+			bwrite(fd, &len, sizeof len);
+			bwrite(fd, objects[i].oc_name, len);
+		} else
+			bwrite(fd, &zero, sizeof len);
+		if(objects[i].oc_descr) {
+			len = strlen(objects[i].oc_descr)+1;
+			bwrite(fd, &len, sizeof len);
+			bwrite(fd, objects[i].oc_descr, len);
+		} else
+			bwrite(fd, &zero, sizeof len);
 		if(objects[i].oc_uname) {
 			len = strlen(objects[i].oc_uname)+1;
 			bwrite(fd, &len, sizeof len);
 			bwrite(fd, objects[i].oc_uname, len);
-		}
+		} else
+			bwrite(fd, &zero, sizeof len);
 	}
 }
 
@@ -196,10 +207,25 @@ restnames(int fd)
 
 	mread(fd, (char *) bases, sizeof bases);
 	mread(fd, (char *) objects, sizeof objects);
-	for(i=0; i < SIZE(objects); i++) if(objects[i].oc_uname) {
+	for(i=0; i < SIZE(objects); i++) {
 		mread(fd, (char *) &len, sizeof len);
-		objects[i].oc_uname = (char *) alloc(len);
-		mread(fd, objects[i].oc_uname, len);
+		if(len) {
+			objects[i].oc_name = (char *) alloc(len);
+			mread(fd, objects[i].oc_name, len);
+		} else
+			objects[i].oc_name = 0;
+		mread(fd, (char *) &len, sizeof len);
+		if(len) {
+			objects[i].oc_descr = (char *) alloc(len);
+			mread(fd, objects[i].oc_descr, len);
+		} else 
+			objects[i].oc_descr = 0;
+		mread(fd, (char *) &len, sizeof len);
+		if(len) {
+			objects[i].oc_uname = (char *) alloc(len);
+			mread(fd, objects[i].oc_uname, len);
+		} else 
+			objects[i].oc_uname = 0;
 	}
 }
 

games/hack/hack.timeout.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: hack.timeout.c,v 1.7 2016/01/09 18:33:15 mestre Exp $	*/
+/*	$OpenBSD: hack.timeout.c,v 1.8 2019/04/05 09:02:27 bentley Exp $	*/
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -73,7 +73,7 @@ hacktimeout(void)
 	if(Stoned) stoned_dialogue();
 	for(upp = u.uprops; upp < u.uprops+SIZE(u.uprops); upp++)
 	    if((upp->p_flgs & TIMEOUT) && !--upp->p_flgs) {
-		if(upp->p_tofn) (*upp->p_tofn)();
+		if(upp->p_tofn) float_down();
 		else switch(upp - u.uprops){
 		case STONED:
 			killer = "cockatrice";