Commit Graph

19 Commits

Author SHA1 Message Date
Edward Tomasz Napierala
75e5511214 Add speed limit to dd(1). This is useful for testing RCTL disk io limits
(when they actually get committed, that is), and might also come in handy
in other situations.

Reviewed by:	wblock@ (man page)
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-02-28 10:27:12 +00:00
Xin LI
413ef2a3d1 Make C_* contants fit in 32 bits again by using 4 unused bits.
Noticed by:	bde
2014-04-03 06:32:02 +00:00
Xin LI
c3f5e9c515 Implement GNU's extension of 'status' operand. The GNU syntax is
borrowed where syntax status=noxfer means no transfer statistics
and status=none means no status information at all.

This feature is useful because the statistics information can
sometimes be annoying, and redirecting stderr to /dev/null would
mean error messages also gets silenced.

Obtained from:	OpenBSD
MFC after:	2 weeks
2014-04-03 00:55:16 +00:00
Eitan Adler
4ac1163902 Make dd's signal handler async safe.
PR:		bin/75258
Submitted by:	"Oleg V. Nauman" <oleg@reis.zp.ua>
Arrival Date:	Sun Dec 19 14:50:21 GMT 2004
Reviewed by:	mjg, jhb
Reviewed by:	jilles (earlier version)
MFC after:	1 week
2013-05-10 18:43:36 +00:00
Robert Watson
e3edab4a91 Add a "fillchar" command line argument to dd(1) that permits the user
to specify an alternative padding character when using a conversion
mode, or when using noerror with sync and an input error occurs.  This
facilities reading old and error-prone media by allowing the user to
more effectively mark error blocks in the output stream.
2004-08-15 19:10:05 +00:00
Mark Murray
6195fb4102 Remove clause 3 from the UCB licenses.
OK'ed by:	imp, core
2004-04-06 20:06:54 +00:00
Mark Murray
7503d74f54 WARNS=4 fixes. This would be WARNS=9 if we were -std=99 instead of
-ansi, due to 'long long'.

Reviewed by:	green (slightly earlier version)
2003-02-27 18:04:54 +00:00
Warner Losh
f9bcb0beb5 o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
  they already are.

Approved by: arch@, new style(9)
2002-02-02 06:24:13 +00:00
Brian Feldman
4ed955372c Commit general cleanups (separate get_num() and get_off_t() functions to
debogosify some of the command-line string-number conversions into
an unsigned and signed variant.)
2002-01-25 17:44:47 +00:00
Brian Feldman
c15c898eff Various cleanups are made to reduce warnings and make code prettier :)
Also, check for ftruncate() return value and die on failure, but only
try to ftruncate() when the file is a regular file.
2000-07-01 05:36:25 +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
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
Peter Wemm
2a4562393f $Id$ -> $FreeBSD$ 1999-08-27 23:15:48 +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
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
David Greenman
89730b290a Added $Id$ 1994-09-24 02:59:15 +00:00
Rodney W. Grimes
4b88c807ea BSD 4.4 Lite bin Sources 1994-05-26 06:18:55 +00:00