[Openswan dev] First pass README update

[Paul Wouters]

On Fri, 15 Oct 2010, Thomas Geulig wrote:

>> The real fix for those systems is to use posix compliant,  slightly larger
>> versions of regex,sed,awk etc. Space gained from not having "id" or
>> "dirname" is really meaningless.
>
> Busybox tries to be POSIX-compliant. "id" and "dirname" are available,

But often not compiled into busybox by people

> and it's much easier to add these to an embedded system then Perl or
> Python.

I understand. The verify/policy commands are more to help the user, not
the experienced embedded engineer that gives feedback to its user via
a webgui. We will not introduce perl or python into the essential parts
of openswan.

> If there are problems using these commands, they should be fixed (in
> Busybox).

They are mostly not broken, if compiled right. But again, often people
leave out the "extended" support for some commands because it appears
optional to them, such as awk/sed. Or simply versions that will never work,
such as the ip command.

> Implementing Openswan commands in C would be another (good) option.

Yes, that is an option, but it takes time to do this.

Paul