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Date:      Thu, 17 Oct 2013 06:44:53 -0700
From:      Matthew Fleming <mdf@FreeBSD.org>
To:        Sebastian Huber <sebastian.huber@embedded-brains.de>
Cc:        Eitan Adler <lists@eitanadler.com>, FreeBSD Hackers <freebsd-hackers@freebsd.org>
Subject:   Re: Global variables in system programs
Message-ID:  <CAMBSHm9_Om202DuSj==ag6wt9j5TmYeVJz0W_8RCZpe-xTA6gA@mail.gmail.com>
In-Reply-To: <525FA92E.40506@embedded-brains.de>
References:  <525D5A35.4040005@embedded-brains.de> <CAF6rxgn4bLJ1VQp-_ucoqVm9SJEmo8=sH49k7HxJO3Y9JRZcww@mail.gmail.com> <525FA92E.40506@embedded-brains.de>

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On Thu, Oct 17, 2013 at 2:09 AM, Sebastian Huber <
sebastian.huber@embedded-brains.de> wrote:

> On 2013-10-17 03:45, Eitan Adler wrote:
>
>> On Tue, Oct 15, 2013 at 11:07 AM, Sebastian Huber
>> <sebastian.huber@embedded-**brains.de<sebastian.huber@embedded-brains.de>>
>> wrote:
>>
>>  These programs use some global variables.  In a statically linked
>>> context we
>>> have now the following problems
>>>
>>
>> This is a pretty awesome idea.  I've seen some work like this but it
>> would be great to get FreeBSD into a state where this is easy.
>>
>
> If it is acceptable for the FreeBSD project to turn e.g. ROUTE(8) and
> IFCONFIG(8) into library functions then this would be great.  I can do the
> work.


At a meta level, IMO *most* of the functionality in binaries should be in
libraries.  How many times writing a C unit test have I wanted to do rm -rf
of the temporary files I created?  But the recursive remove is in rm(1) not
in libutil.  And it sounds like the functionality in route/ifconfig is now
desired to be accessed programatically, not just from a shell script.  So
+1 for moving code into a library where it can be re-used.

Cheers,
matthew



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