netdev - Re: RFC: ss: improve horizontal output scaling

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Message-ID: <20150924133216.GC26600@orbit.nwl.cc>
Date:	Thu, 24 Sep 2015 15:32:16 +0200
From:	Phil Sutter <phil@....cc>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Stephen Hemminger <stephen@...workplumber.org>,
	netdev@...r.kernel.org
Subject: Re: RFC: ss: improve horizontal output scaling

On Thu, Sep 24, 2015 at 06:27:59AM -0700, Eric Dumazet wrote:
> On Thu, 2015-09-24 at 14:36 +0200, Phil Sutter wrote:
> 
> > This is because TIOCGWINSZ returns 80 if the output is a pipe. 
> 
> Not exactly.
> 
> ss doesn't even call TIOCGWINSZ if output is a pipe.

Oh, you're absolutely right of course. Obviously, since STDOUT_FILENO
does not refer to a terminal, isatty() returns false.

Thanks, Phil
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