Re: maybe a bug for dname_to_string function

Wouter Wijngaards <[email protected]> Thu, 29 Nov 2018 11:09:54 +0100

Newsgroups	gmane.network.dns.nsd.general
Message-ID	<[email protected]>

Hi James,

On 9/23/18 2:14 PM, James Lin wrote:
> Hi,
> I read the dname_to_string function, it use a static buffer as a return
> value, so if I like a code like as following. the output would be wrong.
> code for wrong output.

Yes that is intentional.  The example has the bug you say it has.  NSD
is written in this manner, so it is not a bug to fix.  But it is well
spotted and definitely a problem in other places, and something to look
at.  Thank you for the mention.

Best regards, Wouter

> dname_type *d1;
> dname_type *d2;
> log_msg(LOG_INFO, "%s, %s",  dname_to_string(d1), dname_to_string(d2) );
> now, the output which have two dname is repeated,even if the variable d1
> and variable d2 have different domain name.
> 
> 
> 
> 
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