#7 Implement SLPCheckServiceUrlSyntax

[Michal Srb]

Hi, current OpenSLP uses function SLPCheckServiceUrlSyntax containing this comment:

/*!@todo Do we actually need to do something here to ensure correct
* service-url syntax, or should we expect that it will be used
* by smart developers who know that ambiguities could be encountered
* if they don't?

It showed up that not all developers are smart enough - my customer uses some NetWare service that registers with incomplete service url causing slp clients to hang. Of course the clients and the service have to be fixed, but I think OpenSLP should not participate in spreading incorrect (and possibly malicious) urls.

I attached my suggestion of patch that checks if the beginning of the url (up to the ":/" string) is comforting with RFC 2609, section 2.1.

[Michal Srb]

Implement SLPCheckServiceUrlSyntax to check beginning of service url.