GNU bug report logs - #18365
nohup logname failes with error "logname: no login name"

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Allen.Shepherd <Allen.Shepherd <at> target.com>
To: "bug-coreutils <at> gnu.org" <bug-coreutils <at> gnu.org>
Subject: nohup logname failes with error "logname: no login name"
Date: Sat, 30 Aug 2014 16:37:00 +0000

[Message part 1 (text/plain, inline)]

Hi we cannot retrieve the login name with the below version while running with nohup.
Is there any workaround available?
Thanks,


host.com(oracle:NONE)/: logname --version
logname (GNU coreutils) 5.97
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.
Written by FIXME: unknown.

[Message part 2 (text/html, inline)]

Message #8 received at 18365 <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: "Allen.Shepherd" <Allen.Shepherd <at> target.com>
Cc: 18365 <at> debbugs.gnu.org
Subject: Re: bug#18365: nohup logname failes with error "logname: no login
 name"
Date: Mon, 01 Sep 2014 16:04:22 +0100

tag 18365 notabug
close 18365
stop

On 08/30/2014 05:37 PM, Allen.Shepherd wrote:
> Hi we cannot retrieve the login name with the below version while running with nohup.
> Is there any workaround available?
> Thanks,
> 
> 
> host.com(oracle:NONE)/: logname --version
> logname (GNU coreutils) 5.97
> Copyright (C) 2006 Free Software Foundation, Inc.
> This is free software.  You may redistribute copies of it under the terms of
> the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
> There is NO WARRANTY, to the extent permitted by law.
> Written by FIXME: unknown.

POSIX states that logname should be a simple wrapper around getlogin():
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/logname.html

getlogin() may fail on some systems if stdin is redirected from the controlling tty

thanks,
Pádraig.

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