X2Go Bug report logs - #282
Use client-side LANG + LC_* settings in server session

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Message-ID: <547256E8.8030103@ionic.de>
Date: Sun, 23 Nov 2014 22:51:36 +0100
From: Mihai Moldovan <ionic@ionic.de>
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To: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>, 282@bugs.x2go.org
Subject: Re: [X2Go-Dev] Bug#282: Use client-side LANG + LC_* settings in server
 session
References: <20130802093904.21475jgecz6m8jdk@mail.das-netzwerkteam.de>
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On 02.08.2013 09:39 am, Mike Gabriel wrote:
> When I use a terminal shell emulator (konsole, xfce-emulator, etc) on the
> remote (server x2go), non-ascii characters (accented characters, for
> instance) are not well printed.
>
> The same thing happened when I ssh'ed to the same machine without "SendEnv
> LANG LC_*" in /etc/ssh/ssh_config. Adding this again solved the question.
>
> Executing locale on server terminal emulator results in all "POSIX", except
> for LANG which is not set.

This is strictly speaking NOT an x2go bug, but the way shells work.

We can workaround this using Mike's proposal and I'd second this.

Technical details: x2go connects via SSH and runs shell scripts. Those spawned
shells are non-interactive due to the fact that any of standard output or
standard error are not connected to a terminal.

(man bash: "An interactive shell is one started without non-option arguments and
without the -c option whose standard input and error are both connected to
terminals (as determined by isatty(3)), or one started with the -i option."
A non-interactive shell is therefore (-i option aside) a shell started with
non-option arguments or with the -c option or whose standard input or error are
not connected to terminals.)

POSIX definitions (
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/sh.html ) do not
require a shell to read any file at startup, but won't forbid it. This is simply
not mentioned at all.

bash enters POSIX conformity mode when started as "sh" and will *not* read any
files on startup. This is especially true for /etc/profile.

If it is spawned as "bash" in non-POSIX conformity mode, it will still *not*
read /etc/profile for non-interactive shells.


Mihai
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