[radvd-devel-l] PATCH: Test configuration then exit

Iain J. Watson lists at ij-watson.co.uk
Thu Dec 9 08:59:47 EST 2010

On Thu, Dec 9, 2010 at 6:47 AM, Pekka Savola <pekkas at netcore.fi> wrote:
> Hi,
> On Wed, 8 Dec 2010, Iain J. Watson wrote:
>> This patch adds a flag '-c' to the radvd binary which will exit radvd
>> once completing the startup tests. This is similar to the 'configtest'
>> option in apache's apachectl command. This patch is built against the
>> current code available via cvs.
>> I coded this patch as I am working on a programmatic way of adding and
>> removing subnets from a linux router. For health paranoia's sake I
>> wanted to check the new configuration that is generated is valid for
>> radvd to run against.
> Looks OK on the brief glance though I wondered a bit if the configtest
> printout could be integrated in one place e.g. under flog(). Given the low
> number of modified entries this maybe isn't worth it.

Alternative patch attached.

It does make it a simpler patch to use flog(). I originally didn't use
it because I wanted to make sure the output went to stderr regardless
of other command line options. By overriding the value of 'log_method'
if configtest is called the existing logging code can be used with no

I also fixed an error where I declared 'configtest' as a char instead of an int.

Iain J. Watson
"Just think how stupid the average person is,
and then realize that half of them are even stupider!"
--George Carlin
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