wrappers in the samba test environment.

Andreas Schneider asn at samba.org
Tue Aug 11 06:56:32 UTC 2015

On Tuesday 11 August 2015 16:29:33 Andrew Bartlett wrote:
> On Mon, 2015-08-10 at 10:55 +0200, Andreas Schneider wrote:
> > The wrappers do not work on really strange platforms like IRIX or
> > something
> > like that. So if you just build Samba it compile without the wrappers
> > ...
> Do we have tests that show if we are on a supported platform, and can
> we rely on resolv_wrapper in make test?
> That is, as you know, I'm interested in adding a test for
> samba_dnsupdate.  For that I'll need a working resolv_wrapper.

That resolv_wrapper can redirect dns queries to a DNS server only works on 

The reason is that only on Linux we have a libresolv library, so 
socket_wrapper can intercept the traffic. On other platforms the functions are 
part of libc. This means that the internal socket functions are bound first 
and called directly.

> Are we
> going to try and still have make test run on platforms that can't
> support resolv_wrapper, and if so, what should I be detecting that
> with?

resolv_wrapper is turned on by default and runs on every platform we support. 
Currently it is in DNS faking mode for all platform including Linux.

See selftest/wscript search for FIXME


	-- andreas

Andreas Schneider                   GPG-ID: CC014E3D
Samba Team                             asn at samba.org

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