From: millert <millert@openbsd.org>
Date: Sun, 23 Feb 1997 03:51:22 +0000 (+0000)
Subject: Inline fsirand(8) (at no noticable cost in speed).
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=b3593665f4c5c539806bff0e471424f01311c400;p=openbsd

Inline fsirand(8) (at no noticable cost in speed).
---

diff --git a/sbin/newfs/Makefile b/sbin/newfs/Makefile
index 34cbb21f75a..1de2fd0dd9a 100644
--- a/sbin/newfs/Makefile
+++ b/sbin/newfs/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.3 1996/06/23 14:31:45 deraadt Exp $
+#	$OpenBSD: Makefile,v 1.4 1997/02/23 03:51:22 millert Exp $
 #	$NetBSD: Makefile,v 1.10 1996/05/16 07:13:01 thorpej Exp $
 
 PROG=	newfs
@@ -6,7 +6,7 @@ SRCS=	dkcksum.c getmntopts.c newfs.c mkfs.c
 MAN=	newfs.8
 
 MOUNT=	${.CURDIR}/../mount
-CFLAGS+=-DMFS -I${MOUNT}
+CFLAGS+=-DMFS -DFSIRAND -I${MOUNT}
 .PATH:	${MOUNT} ${.CURDIR}/../disklabel
 
 DPADD=	${LIBUTIL}
diff --git a/sbin/newfs/mkfs.c b/sbin/newfs/mkfs.c
index 8e3646e4325..88801eb7bab 100644
--- a/sbin/newfs/mkfs.c
+++ b/sbin/newfs/mkfs.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mkfs.c,v 1.5 1997/02/21 22:55:19 millert Exp $	*/
+/*	$OpenBSD: mkfs.c,v 1.6 1997/02/23 03:51:23 millert Exp $	*/
 /*	$NetBSD: mkfs.c,v 1.25 1995/06/18 21:35:38 cgd Exp $	*/
 
 /*
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)mkfs.c	8.3 (Berkeley) 2/3/94";
 #else
-static char rcsid[] = "$OpenBSD: mkfs.c,v 1.5 1997/02/21 22:55:19 millert Exp $";
+static char rcsid[] = "$OpenBSD: mkfs.c,v 1.6 1997/02/23 03:51:23 millert Exp $";
 #endif
 #endif /* not lint */
 
@@ -571,8 +571,12 @@ next:
 	sblock.fs_cstotal.cs_nifree = 0;
 	sblock.fs_cstotal.cs_nffree = 0;
 	sblock.fs_fmod = 0;
-	sblock.fs_clean = FS_ISCLEAN;
 	sblock.fs_ronly = 0;
+	sblock.fs_clean = FS_ISCLEAN;
+#ifdef FSIRAND
+	sblock.fs_id[0] = (u_int32_t)utime;
+	sblock.fs_id[1] = (u_int32_t)arc4random();
+#endif
 	/*
 	 * Dump out summary information about file system.
 	 */
@@ -721,6 +725,10 @@ initcg(cylno, utime)
 			acg.cg_cs.cs_nifree--;
 		}
 	for (i = 0; i < sblock.fs_ipg / INOPF(&sblock); i += sblock.fs_frag) {
+#ifdef FSIRAND
+		for (j = 0; j < sblock.fs_bsize / sizeof(struct dinode); j++)
+			zino[j].di_gen = (u_int32_t)arc4random();
+#endif
 		wtfs(fsbtodb(&sblock, cgimin(&sblock, cylno) + i),
 		    sblock.fs_bsize, (char *)zino);
 	}
@@ -990,6 +998,9 @@ iput(ip, ino)
 	daddr_t d;
 	int c;
 
+#ifdef FSIRAND
+	ip->di_gen = (u_int32_t)arc4random();
+#endif
 	c = ino_to_cg(&sblock, ino);
 	rdfs(fsbtodb(&sblock, cgtod(&sblock, 0)), sblock.fs_cgsize,
 	    (char *)&acg);
diff --git a/sbin/newfs/newfs.8 b/sbin/newfs/newfs.8
index dbc6c339774..2358fd28dc6 100644
--- a/sbin/newfs/newfs.8
+++ b/sbin/newfs/newfs.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: newfs.8,v 1.4 1996/12/04 08:38:58 deraadt Exp $
+.\"	$OpenBSD: newfs.8,v 1.5 1997/02/23 03:51:24 millert Exp $
 .\"	$NetBSD: newfs.8,v 1.12 1995/03/18 14:58:41 cgd Exp $
 .\"
 .\" Copyright (c) 1983, 1987, 1991, 1993, 1994
@@ -123,6 +123,17 @@ will be used.  (This option is useful when trying to use
 .Nm mount_mfs
 on a machine without any disks.)
 .Pp
+Both
+.Nm
+and
+.Nm mount_mfs
+now have the functionality of
+.Xr fsirand 8
+built-in so it is not necesary to run
+.Xr fsirand 8
+manually unless you wish to re-randomize the
+filesystem (or list the inode generation numbers).
+.Pp
 The following options define the general layout policies.
 .Bl -tag -width Fl
 .It Fl N
@@ -277,7 +288,8 @@ man page for possible options and their meanings.
 .Xr fsck 8 ,
 .Xr format 8 ,
 .Xr mount 8 ,
-.Xr tunefs 8
+.Xr tunefs 8 ,
+.Xr fsirand 8
 .Rs
 .%A M. McKusick
 .%A W. Joy
diff --git a/sbin/newfs/newfs.c b/sbin/newfs/newfs.c
index e3c8511c99e..0523a2f3d7f 100644
--- a/sbin/newfs/newfs.c
+++ b/sbin/newfs/newfs.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: newfs.c,v 1.13 1997/02/22 05:53:35 millert Exp $	*/
+/*	$OpenBSD: newfs.c,v 1.14 1997/02/23 03:51:25 millert Exp $	*/
 /*	$NetBSD: newfs.c,v 1.20 1996/05/16 07:13:03 thorpej Exp $	*/
 
 /*
@@ -44,7 +44,7 @@ static char copyright[] =
 #if 0
 static char sccsid[] = "@(#)newfs.c	8.8 (Berkeley) 4/18/94";
 #else
-static char rcsid[] = "$OpenBSD: newfs.c,v 1.13 1997/02/22 05:53:35 millert Exp $";
+static char rcsid[] = "$OpenBSD: newfs.c,v 1.14 1997/02/23 03:51:25 millert Exp $";
 #endif
 #endif /* not lint */
 
@@ -589,12 +589,7 @@ havelabel:
 			fatal("%s: %s", argv[1], strerror(errno));
 	}
 #endif
-	if (!Nflag) {
-		(void)execl(_PATH_FSIRAND, "fsirand", special, NULL);
-		err(1, "Can't exec %s", _PATH_FSIRAND);
-	} else {
-		exit(0);
-	}
+	exit(0);
 }
 
 #ifdef COMPAT