Need custom proxy written in C (linux/bsd)

I need a custom proxy written in C that will work on linux & freebsd I do not wish to use existing software, I need my own written Here are the requirements 1. Simple config file that will allow me to define the listening port, target ip & target port 2. The process must listen on every available address on the server (there are 100 ips on my server) 3. The outgoing ip must match the ip the proxy was connected to. 4. It must allow multiple connections (as many as possible). 5. IMPORTANT: I need a way (separate config or compiled into) to define a string (via HEX) to ignore the incoming packet if it is in the packet. This can be done 2 ways: a. I define start position, and end position & match against my hex. Similar to: If mid(packet, 4, 6) == "0A 0A" b. I only define the string to drop the packet with & it searches the entire packet. Similar to: If instr(packet, "0A 0A") > 0 The only reason for option A is if option B requires very high CPU... otherwise option B is all that is required. ONLY this single packet must be dropped, NOT THE NETWORK CONNECTION! ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform linux/freebsd/c