It is really necessary to build a VM from the ground up that includes OS
ability? What about JavaScript?
On Wed, Jan 26, 2005 at 05:18:59PM +0100, Alexander Schremmer wrote:
On Tue, 25 Jan 2005 22:08:01 +0100, I wrote:
>>>> sys.safecall(func, maxcycles=1000)
> could enter the safe mode and call the func.
This might be even enhanced like this:
>>> import sys
>>> sys.safecall(func, maxcycles=1000,
allowed_domains=['file-IO', 'net-IO', 'devices',
'gui'],
allowed_modules=['_sre'])
Any comments about this from someone who already hacked CPython?
Yes, this comes up every couple months and there is only one answer:
This is the job of the OS.
Java largely succeeds at doing sandboxy things because it was written
that
way from the ground up (to behave both like a program interpreter and an
OS).
Python the language was not, and the CPython interpreter definitely was
not.
Search groups.google.com for previous discussions of this on c.l.py
-Jack
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