NDK: Configuring IP address during runtime with XGCONF

Hi,

is it possible to setup the IP address during runtime without using the legacy API?
The IP address configuration is stored on a memory card in my application.

And another question I already asked in a different forum:
Is there an easy way to activate the semaphore library of the kernel gate functions llenter() and llexit()?
The priority based library is used by default (os.ae66 instead of os_sem.ae66). I couldn't find a setting in the RTSC configuration.

Thanks,

Ralf