[BusyBox 0006174]: env -u does not bind variable (mismatch with coreutils)

[bugs at busybox.net]

The following issue has been CLOSED 
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http://busybox.net/bugs/view.php?id=6174 
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Reported By:                pgbovine
Assigned To:                BusyBox
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Project:                    BusyBox
Issue ID:                   6174
Category:                   Standards Compliance
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     closed
Resolution:                 open
Fixed in Version:           
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Date Submitted:             11-11-2008 12:38 PST
Last Modified:              11-12-2008 14:22 PST
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Summary:                    env -u does not bind variable (mismatch with
coreutils)
Description: 
The -u option to env is supposed to remove a variable from the given
environment, but if -u is invoked along with a parameter that contains an
equals sign, then coreutils actually binds that variable (or re-binds it
if it's already bound), but busybox does NOT bind the variable.

Coreutils behavior:

$ env -ux=5 | grep '^x='
x=5
$ env -iux=5
x=5
$ env -uUSER=redefined_username | grep '^USER'
USER=redefined_username

Busybox behavior:

$ ./busybox env -ux=5 | grep '^x='
$ ./busybox env -iux=5
$ ./busybox env -uUSER=redefined_username | grep '^USER'
USER=pgbovine

Notice that x was not bound, and moreover, that my username (pgbovine) was
not re-bound.

(Note that the -i option will execute a command in a fresh blank
environment, which makes differences more salient.) 
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---------------------------------------------------------------------- 
 vda - 11-11-08 13:33  
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Try attached 7.patch 

---------------------------------------------------------------------- 
 vda - 11-12-08 14:22  
---------------------------------------------------------------------- 
Fixed in svn. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
11-11-08 12:38  pgbovine       New Issue                                    
11-11-08 12:38  pgbovine       Status                   new => assigned     
11-11-08 12:38  pgbovine       Assigned To               => BusyBox         
11-11-08 13:32  vda            File Added: 7.patch                          
11-11-08 13:33  vda            Note Added: 0015434                          
11-12-08 14:22  vda            Status                   assigned => closed  
11-12-08 14:22  vda            Note Added: 0015644                          
======================================================================