GNU bug report logs - #41788
28.0.50; emacsclient -t doesn't work with vipe from moreutils

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Message #17 received at 41788 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Platon Pronko <platon7pronko <at> gmail.com>, 41788 <at> debbugs.gnu.org
Subject: Re: bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from
 moreutils
Date: Mon, 06 Jun 2022 18:25:00 +0200

On Jun 06 2022, Lars Ingebrigtsen wrote:

> open(STDIN, "</dev/tty") || die "reopen stdin: $!";
> open(OUT, ">&STDOUT") || die "save stdout: $!";
> close STDOUT;
> open(STDOUT, ">/dev/tty") || die "reopen stdout: $!";

That associates the process with /dev/tty, not the real terminal.  But
the running Emacs process usually does not have a controlling terminal,
thus it cannot open /dev/tty.  It needs to know the real terminal to be
able to open a tty frame on it.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
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