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+++ This bug was initially created as a clone of Bug #669171 +++

Description of problem:

    The $REMOTEHOST environment variable is set to an empty string
    when logging onto a local system in csh and tcsh.  It should be
    left undefined.

Version-Release number of selected component (if applicable):

    tcsh-6.17-8.el6

How reproducible:

    100%

Steps to Reproduce:

    1. Start tcsh or csh on a local console
    2. Run "echo $REMOTEHOST"
  
Actual results:

    $ echo $REMOTEHOST

    [note blank line]

Expected results:

    $echo $REMOTEHOST
    REMOTEHOST: Undefined variable.

Additional info:

    The expected results occur on a RHEL 5 system, but the actual
    results occur on RHEL 6 and Fedora Rawhide.  This could easily be
    considered a regression.

Created attachment 473125 [details]
Proposing patch

Created attachment 473507 [details]
Slightly improved version of previous patch

The patch has been accepted by upstream (6.17.03b).

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
On a local machine, tcsh set the "REMOTEHOST" environment variable to an empty string, even though this variable should be only set on remote machines. This error has been fixed, and "REMOTEHOST" is no longer set on a local machine.

Bugfix was successfully verified tcsh-6.17-11.el6 package on i386, x86_64, s390x and ppc architectures. REMOTEHOST variable is no more set when running shell from local machine.

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0193.html