From 23853f2ffd250db86274da703871463a78a8a4ac Mon Sep 17 00:00:00 2001
From: millert <millert@openbsd.org>
Date: Wed, 26 Mar 1997 01:14:13 +0000
Subject: [PATCH] Blocking factor in tar is in 512byte blocks.  Makes -b act
 like ``real'' tars.

---
 bin/pax/options.c |  7 ++++---
 bin/pax/tar.1     | 10 ++++++----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/bin/pax/options.c b/bin/pax/options.c
index 59f9059bd70..66d565fc341 100644
--- a/bin/pax/options.c
+++ b/bin/pax/options.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: options.c,v 1.16 1997/03/02 09:46:47 tholo Exp $	*/
+/*	$OpenBSD: options.c,v 1.17 1997/03/26 01:14:13 millert Exp $	*/
 /*	$NetBSD: options.c,v 1.6 1996/03/26 23:54:18 mrg Exp $	*/
 
 /*-
@@ -42,7 +42,7 @@
 #if 0
 static char sccsid[] = "@(#)options.c	8.2 (Berkeley) 4/18/94";
 #else
-static char rcsid[] = "$OpenBSD: options.c,v 1.16 1997/03/02 09:46:47 tholo Exp $";
+static char rcsid[] = "$OpenBSD: options.c,v 1.17 1997/03/26 01:14:13 millert Exp $";
 #endif
 #endif /* not lint */
 
@@ -609,12 +609,13 @@ tar_options(argc, argv)
 		switch(c) {
 		case 'b':
 			/*
-			 * specify blocksize
+			 * specify blocksize in 512-byte blocks
 			 */
 			if ((wrblksz = (int)str_offt(optarg)) <= 0) {
 				paxwarn(1, "Invalid block size %s", optarg);
 				tar_usage();
 			}
+			wrblksz *= 512;		/* XXX - check for int oflow */
 			break;
 		case 'c':
 			/*
diff --git a/bin/pax/tar.1 b/bin/pax/tar.1
index ef213e4a091..e33dcc89a88 100644
--- a/bin/pax/tar.1
+++ b/bin/pax/tar.1
@@ -27,7 +27,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: tar.1,v 1.4 1996/12/09 12:02:17 deraadt Exp $
+.\"	$OpenBSD: tar.1,v 1.5 1997/03/26 01:14:14 millert Exp $
 .\"
 .Dd June 11, 1996
 .Dt TAR 1
@@ -83,9 +83,11 @@ extration.
 In addition to the flags mentioned above, any of the following
 flags may be used:
 .Bl -tag -width Ar
-.It Fl b Ar blocksize
-Set block size to use for archive.  Any multiple of 512 between
-10240 and 32256 may be used.
+.It Fl b Ar "blocking factor"
+Set blocking factor to use for archive,
+.Nm tar
+uses 512 byte blocks.  The blocking factor may not be larger
+than 63 (32256 bytes).
 .It Fl e
 Stop after first error.
 .It Fl f Ar archive
-- 
2.20.1