PCjr Telnet Server Test

My TCP/IP stack isn't very small either .. people have done TCP/IP in a much smaller space. This particular application takes 68KB on disk and 132KB total, including heap allocations. There is no UDP or DNS support compiled in, but I do have about 9KB of trace code compiled in. In the 132KB of space I'm able to support 10 online clients, each with a 2KB output buffer, a 512 byte receive buffer, and a few buffers (20 to 30KB) floating around for incoming and outgoing TCP transmissions. General features I do support: - ARP including caching a few entries - TCP sliding window, automatic retransmit, zero window probes, MSS negotiation, listen support, etc. - Enough UDP to implement DNS resolving and DHCP - A nice tracing mechanism that I can turn on and off via an environment variable or run-time variable, with selectable levels of tracing Big things I know I'm missing: - ICMP - it's on the todo list. - IP fragments. I don't take them, and I don't do them. Too expensive for a little machine, and pretty rarely needed on a TCP socket. So the memory requirements and function put it above uIP, but it's still small enough to cram into a low end 8088 class machine. Many people have run TCP/IP on much less hardware. I haven't looked at the uIP code, but the fact that Adam can run in on a C64 is enough to amaze me .. It's not as full featured, but it's there! Mike