[BusyBox] mv is deleting files!

[Rainer Weikusat]

Steven Scholz <steven.scholz at imc-berlin.de> writes:

> Hi there,
>
> I just noticed something strange with busybux-1.00 mv command:
>
> ~ # ls -l /opt/imc/idxcan
> ls: /opt/imc/idxcan: No such file or directory
>
> 	[Ok. cause the file is not there yet.]
>
> ~ # ls -l /tmp/idxcan
> -rw-r--r--    1 root     root      1154716 Jan  1 00:43 /tmp/idxcan
>
> 	[This file will be moved to /opt/imc]
>
> ~ # mv /tmp/idxcan /opt/imc/
> ~ # ls -l /tmp/idxcan
> ls: /tmp/idxcan: No such file or directory
> ~ # ls -l /opt/imc/idxcan
> -rw-r--r--    1 root     root      1154716 Jan  1 00:43 /opt/imc/idxcan
>
> 	[OK. File was moved from /tmp to /opt/imc]
>
> ~ # mv /tmp/idxcan /opt/imc/
> mv: /tmp/idxcan: No such file or directory
>
> 	[Fair enough. Cause the file was moved.]
>
> ~ # ls -l /opt/imc/idxcan
> ls: /opt/imc/idxcan: No such file or directory
>
> 	[Oops!!! The mv that failed apparently deleted the target!]

I cannot reproduce this with 'my' busybox mv (which is some CVS/SVN
version after 1.00, but I didn't actually touch it yet).