Commit Graph

91 Commits

Author SHA1 Message Date
Brian Feldman
1838cf5671 Let count=-something fail, while count=0 may succeed, thus making dd(1)
useful as a seeking-tool as well as its many other uses.  Previously,
dd(1) would succeed with count=0, but wouldn't get to the point that
blocks were to be read/written. This is a more useful behavior, and
this specific case doesn't seem to be handled by POSIX.
1999-09-16 05:12:59 +00:00
Brian Feldman
7599187e0d Even more dd(1) cleanups! Thanks to Bruce for staying on my case until
we're done (not yet!) :)
1999-09-13 21:47:10 +00:00
Brian Feldman
32952d4b37 ISDISK -> ISSEEK
Allow a device type of D_DISK or D_MEM to be ISSEEK.
1999-09-12 18:56:12 +00:00
Brian Feldman
5868747254 Even more cleanups to dd(1). This is probably the culmination of the
BDEification process of dd(1). Most of the changes are from BDE's archive.
Support for negative offsets is gone again, but the case where you
lseek() onto byte -1 of something from a negative offset using seek/skip
is fixed; if you end up on -1, you won't get a false positive lseek failure.
  The biggest changes are to data types (more size_t, for instance) and
argument parsing. skip/seek on /dev/{,k}mem now occurs (instead of "read
until you reach the offset") due to mem devices now being D_DISK. Some
const things are now correctly declared as such, and the "case table"
building is better. The only thing that seems to be left to make dd(1)
everything TOG wants it to be is l10n.
1999-09-12 16:51:53 +00:00
Brian Feldman
e14f7e789a Make a bit more headway with dd's argument parsing, etc. get_bsz() is
renamed get_num() since it's not just about block sizes. skip and
seek can be any offset, including negative, now. Some style bogons are fixed.
1999-09-11 00:02:42 +00:00
Brian Feldman
ff8bb989ab Relax things a bit. Not having FIODTYPE will be a warning for now.
Pointy hat:	green
Pointed out by:	peter
1999-08-28 03:37:38 +00:00
Peter Wemm
2a4562393f $Id$ -> $FreeBSD$ 1999-08-27 23:15:48 +00:00
Brian Feldman
e08d7384ee Use FIODTYPE to unbogosify much of the file type checking in dd. 1999-08-27 16:36:46 +00:00
Brian Feldman
769e5815e3 Implement seekability for disk devices (not just regular files).
Also, fix pos_out() to do the same checks pos_in() did.

Done for:	jdp, luigi, the good of the world
1999-07-13 18:44:56 +00:00
Brian Feldman
54946e00b2 This is the second round of dd(1) changes. Some changes made/reversed by
request of Bruce. More changes may follow later. 'g' multiplier has
been added (i.e. dd seek=5g if=bigfile.) Some minor corrections were made
as well.

Noticed by: bde
1999-06-20 14:58:55 +00:00
Brian Feldman
767bc8ad79 Miscellaneous dd(1) changes: mainly fixing variable types (size_t, ssize_t,
off_t, int, u_int64_t, etc.). dd(1) should now work properly with REALLY
big amounts of data.
1999-06-19 19:49:35 +00:00
Kris Kennaway
46be34b902 Various spelling/formatting changes.
Submitted by: Philippe Charnier <charnier@xp11.frmug.org>
1999-05-08 10:22:15 +00:00
Warner Losh
426e9c1dcc First set of fixes to keep egcs happy. These include {} around single
statement if blocks[*] when the else could be ambiguous, not defaulting
to int type and removal of some unused variables.

[*] This is explicitly allowed by style(9) when the single statement
spans more than one line.

Reviewed by: obrien, chuckr
1999-04-25 21:13:34 +00:00
Bruce Evans
f58a6c7a68 Fixed printf format errors. 1998-12-07 12:37:11 +00:00
Bruce Evans
7d159f8837 Describe `bs=n' more precisely. Fixed some English errors.
Obtained from:		OpenBSD
1998-11-29 13:54:20 +00:00
Philippe Charnier
1ba0e048a2 Restore Lite-2 sccsid. Restore include of sys/types.h. 1998-05-13 07:33:54 +00:00
Philippe Charnier
cbf6f7d358 Correct use of .Nm and other cosmetics. Add rcsid. Remove unused #inc. 1998-05-06 06:51:42 +00:00
Bruce Evans
7eaa685e41 Exit with a nonzero status if we get killed by a SIGINT. POSIX.2
specifies exiting with a zero status if the file was copied
successfully, and with a nonzero status if an error occurred.  We
are too sloppy to tell if the file was copied successfully when we
get killed by a SIGINT, but it is unlikely to have been.  Added a
comment about related sloppiness (calling exit() from a signal
handler).
1998-02-24 01:45:05 +00:00
Satoshi Asami
2f719e7069 Fix printing for bytes read > 4G.
Reviewed by:	bde
1998-02-11 02:23:31 +00:00
Joerg Wunsch
1f68c20551 Oops, back out rev 1.5, it wasn't my intention to also commit the
-g. ;)
1998-01-07 22:32:28 +00:00
Joerg Wunsch
a28ea077f9 Use the correct value in the call to swab(3) with conv=swab. Previously,
dd if=/dev/zero of=/dev=null obs=23520 conv=swab
coredumped.

Please somebody review it, i'm not 105 % sure i'm understanding all
this mess correctly.

Detected by:	Holm Tiffe <holm@geophysik.tu-freiberg.de>
1998-01-07 22:31:19 +00:00
Eivind Eklund
1ee36a5be6 It's more portable to use <errno.h> than <sys/errno.h>
Pointed-out-by:	bde (a long while ago)
1997-12-15 20:37:43 +00:00
Joerg Wunsch
1898febe2d Sort "sparse" into alphabetical order, since dd's `conv' options need
to be sorted.  This temporarily broke the "osync" option.
1997-11-11 20:35:29 +00:00
Joerg Wunsch
4ddfeabd8f Teach dd(1) about an option to write sparse files. Can be useful for
things like diskless clients' swap files etc.

Submitted by:	pascal@zuo.dec.com (Pascal Pederiva) (ages ago, with many
						  stylistic changes by me)
1997-10-11 20:09:05 +00:00
Eivind Eklund
73db7d72c8 Add <sys/errno.h> 1997-10-09 10:50:54 +00:00
Eivind Eklund
bd6b64117b make signal handlers errno safe
Obtained from:	OpenBSD (file rev 1.5) Theo de Raadt <deraadt@openbsd.org>
1997-10-08 12:59:14 +00:00
Eivind Eklund
4c33974251 Slightly improved fix compared to my insiration
don't munge argv strings -- copy them first. avoids 'w' showing:
    deraadt  p8 zeus.theos.com    8:26AM     3 dd if of bs

Obtained from:	OpenBSD (file rev 1.3) by Theo de Raadt <deraadt@openbsd.org>
1997-10-08 12:10:33 +00:00
Jonathan Lemon
af041bf3fd Pad the input buffer whenever sync is used, not just if the noerror flag
is also set.
Change osync to not to tack on an empty block if the input buffer is null,
    or an even multiple of the blocksize.
Also change osync to pad the output with nulls/spaces depending whether
   this is a block-oriented conversion or not (same as sync).

PR:		3818
1997-08-19 19:46:18 +00:00
Bruce Evans
3e75bb9be1 Fixed overflow for attempts to seek to offsets > ULONG_MAX. See the
OpenBSD version for more complete fixes.  E.g., to seek to offsets >
INT_MAX using a block size of 1, block numbers need to be off_t's
instead of u_long's.
1997-04-30 17:51:29 +00:00
Steve Price
939a4c24e5 Change spelling of ECBDIC to EBCDIC. Closes PR #3402
Submitted by:	h-nokubi@nmit.mt.nec.co.jp
1997-04-28 04:07:29 +00:00
Peter Wemm
b97fa2ef50 Revert $FreeBSD$ to $Id$ 1997-02-22 14:13:04 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Steve Price
78b09ffeaf -Wall cleaning. 1996-12-14 06:08:03 +00:00
Poul-Henning Kamp
ad66f7ee71 Bruce says: "You have been programming in the kernel for too long :-)."
and he's right ... I forgot about this floating point stuff you can
use in user-land :-)

Increase precision of duration to microseconds.
No heuristics to avoid overflow in calculation needed - just depend
on DBL_MAX being a bit larger than LONG_MAX.

Use double instead of `struct timeval' in dd.h so that everything
doesn't have to include <sys/time.h>.

Fixed style bugs in recent and old FreeBSD changes.

Reviewed by:	phk
Submitted by:	bde
1996-11-13 20:00:03 +00:00
Poul-Henning Kamp
77dfeccef6 Increase precision of duration to milliseconds.
Some heuristics to avoid overflow in calculation attempted.
1996-11-12 23:09:15 +00:00
Andrey A. Chernov
f7c627b282 Add setlocale LC_CTYPE 1995-10-23 21:31:48 +00:00
Andrey A. Chernov
c5191e580d More koshering [ul]case fix, don't use pre-initialized tables at all,
treat 0xFF as valid character.
1995-01-17 23:04:29 +00:00
Andrey A. Chernov
dde07463cf Make conv=[lu]case works with localized ctype (8bit) 1995-01-17 22:55:59 +00:00
David Greenman
89730b290a Added $Id$ 1994-09-24 02:59:15 +00:00
Poul-Henning Kamp
d4daf998ed Applied patch to make -Wall and -Dlint shut up.
Reviewed by:	phk
Submitted by:	Josef Grosch <joeg@gagme.wwa.com>
1994-09-20 06:24:56 +00:00
Rodney W. Grimes
4b88c807ea BSD 4.4 Lite bin Sources 1994-05-26 06:18:55 +00:00