Checking out files in the repository itself( how to better prevent )

[Donald Sharp]

The current implementation prevents via the safe_location() function
( in checkout.c ).  

safe_location() follows symlinks back to find the actual location.  The
problem that I am having is that repositories are not where they 
say they are due to mount issues.

For Instance:

One repository I have is at /nfs/swtrf/repository
donsharp-u5:24> cd /nfs/swtrf/repository
donsharp-u5:25> df -k .
Filesystem            kbytes    used   avail capacity  Mounted on
saba:/swtrf          8388608 3252424 4977952    40%    /auto/swtrf
donsharp-u5:26> pwd
/auto/swtrf/repository
donsharp-u5:27> 

This causes the safe_location() check to not catch the fact that 
we really are inside of the repository.

Would it be worthwhile to create a safer safe_location() that 
looks at mount points as well?

donald