https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241559
--- Comment #2 from sig...@gmail.com ---
Isn't it still less bad with this change? It still prints an error message if
it gets a write returning 0. That way you know it had to stop before it wrote
everything.
>From what I found, POSIX say
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241559
--- Comment #1 from Conrad Meyer ---
Unfortunately write() => 0 has no special semantics in POSIX or FreeBSD. It
just means partial progress / no error. (So I don't think the proposed change
to cat is correct.) This interacts poorly with
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241559
Bug ID: 241559
Summary: cat(1) endless loop when writing to special device
file
Product: Base System
Version: 12.1-RELEASE
Hardware: Any
OS: Any
