ASYN UDP broadcasts

[Eric Norum <norume@aps.anl.gov>]

I've committed changes to the ASYN TCP-UDP/IP port driver to add support for UDP broadcast sockets. 

UDP broadcasts are supported by specifying  IP protocol "UDP*" and the network broadcast address in the port configuration command:

     drvAsynIPPortConfigure("L0", "192.168.1.255:1234 UDP*", 0, 0, 0)

Note that on many systems UDP broadcasts are restricted to the super-user account.

Thanks go out to Stefan Bruins for suggesting this addition.

-- 

Eric Norum <norume@aps.anl.gov>

Advanced Photon Source

Argonne National Laboratory

(630) 252-4793