OpenVMS Port Forwarding Fix

I need to run a UDP port forwarding application on OpenVMS. The original application can be found here: <[login to view URL]> Basically I need the application to listen on a UDP port and resend all the datagrams it receives to another host. The original application does not compile on OpenVMS 8.3 with an? Itanium processor. The deliverables are both a single C file that will compile (with CC & LINK) on the specified target as well as a precompiled EXE for the target.