To work around an incompatibility between lsm-autoip.so and dhcp.client, I have decided to roll my own autoip mechanism.
  This should be simple, but I can not open a socket to the ARP layer.  I'm assuming I have to use the AF_ARP protocol 
family as defined in socket.h, but I can't find the right combination of arguments to socket to get it to open.  I have 
to guess because there is no documentation on how to do this.

Does anyone have sample code to send and receive ARP packets?

P.S. I am developing under QNX 6.5.0.  And despite having the Standard Support plan, I have been waiting months for 
access to the networking source code.