drop `uptodate()' check from hack(6)

hack(6) scrapes $PATH to find its executable and compare the mtime to
the save file and bone file.  If the game is newer than those, they're
not loaded.

Drop this feature.  /usr/games is not in the default $PATH anymore, and
the format for those file didn't change since the import.

Diff from Anton Konyahin (me [at] konyahin [dot] xyz)

4 files changed, 11 insertions, 70 deletions

diff --git a/games/hack/hack.bones.c b/games/hack/hack.bones.c
index 4abe525065d..20fa34841c1 100644
--- a/games/hack/hack.bones.c
+++ b/games/hack/hack.bones.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hack.bones.c,v 1.11 2019/06/28 13:32:52 deraadt Exp $	*/
+/*	$OpenBSD: hack.bones.c,v 1.12 2023/06/03 15:19:38 op Exp $	*/
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -139,17 +139,15 @@ savebones(void)
 int
 getbones(void)
 {
-	int fd,x,y,ok;
+	int fd,x,y;
 
 	if(rn2(3)) return(0);	/* only once in three times do we find bones */
 	bones[6] = '0' + dlevel/10;
 	bones[7] = '0' + dlevel%10;
 	if((fd = open(bones, O_RDONLY)) == -1) return(0);
-	if((ok = uptodate(fd)) != 0){
-		getlev(fd, 0, dlevel);
-		for(x = 0; x < COLNO; x++) for(y = 0; y < ROWNO; y++)
-			levl[x][y].seen = levl[x][y].new = 0;
-	}
+	getlev(fd, 0, dlevel);
+	for(x = 0; x < COLNO; x++) for(y = 0; y < ROWNO; y++)
+		levl[x][y].seen = levl[x][y].new = 0;
 	(void) close(fd);
 #ifdef WIZARD
 	if(!wizard)	/* duvel!frans: don't remove bones while debugging */
@@ -158,5 +156,5 @@ getbones(void)
 		pline("Cannot unlink %s .", bones);
 		return(0);
 	}
-	return(ok);
+	return(1);
 }
diff --git a/games/hack/hack.h b/games/hack/hack.h
index 4fa5eafc297..9e0e9154cd7 100644
--- a/games/hack/hack.h
+++ b/games/hack/hack.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hack.h,v 1.13 2016/01/09 18:33:15 mestre Exp $*/
+/*	$OpenBSD: hack.h,v 1.14 2023/06/03 15:19:38 op Exp $*/
 /*	$NetBSD: hack.h,v 1.3 1995/03/23 08:30:21 cgd Exp $*/
 
 /*
@@ -681,7 +681,6 @@ int  phase_of_the_moon(void);
 int  night(void);
 int  midnight(void);
 void gethdate(char *);
-int  uptodate(int);
 void getlock(void);
 #ifdef MAIL
 void getmailstatus(void);
diff --git a/games/hack/hack.main.c b/games/hack/hack.main.c
index 51a066600db..96382aa2f49 100644
--- a/games/hack/hack.main.c
+++ b/games/hack/hack.main.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hack.main.c,v 1.24 2019/06/28 13:32:52 deraadt Exp $	*/
+/*	$OpenBSD: hack.main.c,v 1.25 2023/06/03 15:19:38 op Exp $	*/
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -103,7 +103,6 @@ static void chdirx(char *, boolean);
 int
 main(int argc, char **argv)
 {
-	extern char *__progname;
 	int fd;
 #ifdef CHDIR
 	char *dir;
@@ -183,15 +182,6 @@ main(int argc, char **argv)
 	u.ux = FAR;	/* prevent nscr() */
 	(void) signal(SIGHUP, hackhangup);
 
-	/*
-	 * Find the creation date of this game,
-	 * so as to avoid restoring outdated savefiles.
-	 */
-	gethdate(__progname);
-
-	/*
-	 * We cannot do chdir earlier, otherwise gethdate will fail.
-	 */
 #ifdef CHDIR
 	chdirx(dir,1);
 #endif
@@ -298,8 +288,7 @@ main(int argc, char **argv)
 	setftty();
 	(void) snprintf(SAVEF, sizeof SAVEF, "save/%u%s", getuid(), plname);
 	regularize(SAVEF+5);		/* avoid . or / in name */
-	if((fd = open(SAVEF, O_RDONLY)) >= 0 &&
-	   (uptodate(fd) || unlink(SAVEF) == 666)) {
+	if((fd = open(SAVEF, O_RDONLY)) >= 0) {
 		(void) signal(SIGINT,done1);
 		pline("Restoring old save file...");
 		(void) fflush(stdout);
diff --git a/games/hack/hack.unix.c b/games/hack/hack.unix.c
index 96a9ca84d2f..039ef93c5dc 100644
--- a/games/hack/hack.unix.c
+++ b/games/hack/hack.unix.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hack.unix.c,v 1.21 2021/12/15 16:29:29 deraadt Exp $	*/
+/*	$OpenBSD: hack.unix.c,v 1.22 2023/06/03 15:19:38 op Exp $	*/
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -154,52 +154,7 @@ midnight(void)
 	return(getlt()->tm_hour == 0);
 }
 
-struct stat buf, hbuf;
-
-void
-gethdate(char *name)
-{
-	char *p, *np, *path;
-	char filename[PATH_MAX];
-
-	if (strchr(name, '/') != NULL || (p = getenv("PATH")) == NULL)
-		p = "";
-	np = path = strdup(p);	/* Make a copy for strsep. */
-	if (path == NULL)
-		err(1, NULL);
-
-	for (;;) {
-		if ((p = strsep(&np, ":")) == NULL)
-			break;
-		if (*p == '\0')			/* :: */
-			(void) strlcpy(filename, name, sizeof filename);
-		else
-			(void) snprintf(filename, sizeof filename,
-			    "%s/%s", p, name);
-
-		if (stat(filename, &hbuf) == 0) {
-			free(path);
-			return;
-		}
-	}
-	error("Cannot get status of %s.",
-		(p = strrchr(name, '/')) ? p+1 : name);
-	free(path);
-}
-
-int
-uptodate(int fd)
-{
-	if(fstat(fd, &buf)) {
-		pline("Cannot get status of saved level? ");
-		return(0);
-	}
-	if(buf.st_mtime < hbuf.st_mtime) {
-		pline("Saved level is out of date. ");
-		return(0);
-	}
-	return(1);
-}
+struct stat buf;
 
 /* see whether we should throw away this xlock file */
 static int