On Thu, Oct 13, 2016 at 10:39:32AM -0400, Jan Schaumann wrote:
> more(1) may attempt to call tsetattr(3) on stderr even if its process is
> not in a process group with a controlling terminal. As a result,
> SIGTTOU will be generated, suspending the process.
Frankly, all the code:
tcgetattr(fileno(stderr), &otty);
savetty0 = otty;
slow_tty = cfgetispeed(&otty) < B1200;
hardtabs = (otty.c_oflag & TABDLY) != XTABS;
seems strange, it does not care if the tcgetattr() has been successful
on stderr, etc.
ls | more 2> /dev/null
behaves differently than without stderr redirection.
All the code is pretty mess (e.g. slow_tty is nowhere used, etc.).
Sami has tried to cleanup the code, but not sure about status of this
project (https://github.com/kerolasa/lelux-utiliteetit/commits/more3).
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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