This is a basic networking stack and web server for CP/M.
It is occasionally available running on my RC2014 at http://moonship.jes.xxx:8118/
It is not very good. It basically does the absolute minimum necessary to trick people into thinking that it is a working web server.
It speaks to the rest of the world via a SLIP connection.
Its IP address is hardcoded to 192.168.1.51.
It has no facility to retransmit dropped packets.
It supports a maximum of 32 simultaneous clients.
Incoming packet validation is... missing. It is likely that this program has an arbitrary remote code execution feature. Use it at your own risk etc.
I wrote it all in CP/M using ZDE. It is meant to be compiled with the Hi-Tech C compiler, which crashes if your source files are too large, which is why both the "net" and "httpd" parts are split into many helpfully-named files. I doubt it will compile correctly with any other compiler because some of the "net" code uses Hi-Tech's memset() function which has the arguments the wrong way round.
If you don't want to compile it, you can use the included httpd.com executable. Just copy it to your CP/M machine
and proceed to the "Usage" section.
If you do want to compile it, first get the source files onto your CP/M system any way you know how. If you don't put them in drive D, modify all the source
files to change the #include lines to reference the correct drive letter.
Then, install the Hi-Tech C compiler as per https://techtinkering.com/2008/10/22/installing-the-hi-tech-z80-c-compiler-for-cpm/
Then navigate to the disk that the C compiler is in, and, for example:
C>C -v D:HTTPD.C D:HTTPD2.C D:HTTPD3.C D:HTTP4.C D:NET.C D:NET2.C D:NET3.C
Then wait approximately 7 minutes while it compiles.
You'll need to plug the "reader/punch" (serial port B on the RC2014) into a more-capable machine that supports SLIP networking. I use a Linux machine.
On the Linux machine, in one terminal:
$ sudo slattach -p slip -s 115200 /dev/ttyUSB0
slattach stays running. In another terminal:
$ sudo ifconfig sl0 192.168.1.50 pointopoint 192.168.1.51 up
This tells the Linux machine that its IP address on the SLIP link is 192.168.1.50, and the other end is 192.168.1.51.
Then, on the CP/M machine, navigate to the disk that your web content is in, and, for example:
H>C:HTTPD
Then, on the Linux machine, navigate your web browser to http://192.168.1.51/ and wait while it thinks about loading.
Once you've verified that it works, you're on your own to sort out your routing configuration to make the CP/M web server accessible from the wider Internet.
Please email me if you want: james@incoherency.co.uk