CVS commit: [netbsd-11] src/bin/dd

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Mon Feb  2 17:49:07 UTC 2026

Modified Files:
        src/bin/dd [netbsd-11]: args.c dd.1 dd.c

Log Message:
Pull up following revision(s) (requested by kre in ticket #171):

        bin/dd/dd.1: revision 1.40
        bin/dd/dd.1: revision 1.41
        bin/dd/args.c: revision 1.44
        bin/dd/dd.c: revision 1.54
        bin/dd/dd.1: revision 1.39

PR bin/59942 Fix handling of count=0

Apply (modified) patch from Andrus Suvalau in PR bin/59942
(The actual change is very simple)

This looks to have been broken since version 1.1 - simply short
circuiting processing because count==0 is wrong, there is much
else that needs to be done before copying nothing (including
verifying args that follow it).

It is almost certain that files=0 will need a similar change.

That one looks like it will be even easier - simply deleting
the test for files_cnt being 0 in args.c/f_files() should be
enough I believe - but as I haven't seen any system with a
tape drive in decades, I am unable to test any changes properly,
so I will leave that to someone who can test it properly.

dd(1): touch up markup

dd(1): clarify the text about oflag operand and creat as its default
Hat tip to Ian D. Leroux for the suggested wording.


To generate a diff of this commit:
cvs rdiff -u -r1.43 -r1.43.4.1 src/bin/dd/args.c
cvs rdiff -u -r1.38 -r1.38.6.1 src/bin/dd/dd.1
cvs rdiff -u -r1.53 -r1.53.12.1 src/bin/dd/dd.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.