[Bug 227342] [dpv] dpv -x is broken

[bugzilla...@freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227342

Bug ID: 227342
Summary: [dpv] dpv -x is broken
Product: Base System
Version: 11.1-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: bin
Assignee: dte...@FreeBSD.org
Reporter: eu...@freebsd.org
CC: sta...@FreeBSD.org

An example from dpv(1) manual page does not work:

tar cf - . | dpv -x "gzip -9 > out.tgz" \
$( du -s . | awk '{print $1 * 1024}' ):label

In fact, even simplier command cannot work: dd if=/dev/zero bs=10000 count=1 |
dpv -x "cat >/dev/null" 10000:label

It just draws initial dialog then sits doing nothing.

The reason is that dpv(3) library uses posix_spawn_file_actions_adddup2()
function that effectively clobbers standard input file handle with a call to
dup2(terminal, 0) and ktrace(1) assures that.

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[bugzilla...@freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227342

--- Comment #1 from Devin Teske <dte...@FreeBSD.org> ---
I will try with 11.2, but so far I was unable to replicate with either
11.0-RELEASE-p1 or 11.1-RELEASE (both amd64).

[bugzilla...@freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227342

--- Comment #2 from Devin Teske <dte...@FreeBSD.org> ---
Tried with 11.2-RC3 and still unable to replicate

[bugzilla...@freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227342

Eugene Grosbein <eu...@freebsd.org> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|New |Closed
Resolution|--- |FIXED

--- Comment #3 from Eugene Grosbein <eu...@freebsd.org> ---
I could not reproduce the problem too using recent stable/11. Something got
fixed or that was some local problem. Sorry for bothering you. Closing this.