FujiChat - an Atari 8-bit IRC client.

Features:

- Join and chat in an IRC channel (only one at a time, for now).
- Send and receive private messages to/from other users.
- Runs a TCP/IP stack on the Atari, including TCP, DNS, and SLIP.
- Works with all Atari 8-bit computers (400/800/XL/XE) provided they
  have at least 48K of RAM and a supported RS232 port.
- Works with SIO2PC, Atari 850, or ICD P:R: Connection RS232 ports.
- Supports up to 9600 baud serial connection (depending on hardware used).
- Fully open source (BSD licensed).
- Ready-to-boot ATR image also supplied (fujichat.atr).

Contents:

README - you're reading it now.
doc/   - documentation, including (possibly obsolete) design notes.
src/   - FujiChat source, excluding uIP library.
uip/   - Modified/hacked-up version of Adam Dunkels' uIP, used as a library.

If you just want to run FujiChat and don't care about compiling it, you
can grab the latest build from:

http://urchlay.naptime.net/repos/fujichat/plain/src/fujichat.atr

Paste that into your browser and "Save as", or else use wget to download it.

To compile FujiChat:

- Install cc65. Needs to be a snapshot or release later than the
  2.11.0 release, but older than about December, 2015. Version 2.13.3 is
  what the author currently uses. The code uses the old cc65 rs232.h API,
  which was replaced with a new serial.h API sometime in 2015. This will
  be rectified eventually in the FujiChat source.

- Install axe. This can be found at http://urchlay.naptime.net/repos/axe/
  or use the clone URL git://urchlay.naptime.net/axe.git

Make sure cc65 and axe are both found in your $PATH, then:

$ cd src
$ make
$ make disk

This will build an ATR image called fujichat.atr. This is a bootable image
with DOS 2.0S and everything you need to run FujiChat. See doc/README
for more detail.

Running FujiChat:

fujichat.atr is a bootable DOS 2.0S floppy disk. It must be booted with
BASIC disabled (remove cartridge on 400/800/1200XL, hold Option down
on XL/XE).

The first time FujiChat boots, it'll ask what serial port driver you
want to use. Once you've selected this, you'll be prompted to reboot.
It's not recommended to choose 1 (no driver/manual setup); this option
exists mainly for testing.

After the serial driver has been selected, FujiChat will boot into
its main menu. The first thing you'll want to do is choose S for Setup.
You'll be prompted for all the settings. The main ones are:

- Baud rate. 4800 is the "safe" choice here, and works on most hardware.
  9600 baud may or may not work for you. 19200 baud probably won't work
  for anyone (yet?)

- Local IP address and Peer IP address. You shouldn't have to change
  these (just press Enter for the defaults), *unless* your LAN is
  already using the 192.168.0/24 net block! If this is the case, try
  10.0.0.1 and 10.0.0.2 for these.

- DNS server. Most people will enter their ISP-assigned DNS server here.
  In a pinch, you might try 8.8.8.8 (Google's public DNS server).
  If you run DNS service on your local Linux/whatever system, you can
  use the same IP as you entered for Peer IP address here.

- IRC server. You can choose one of the listed servers, or enter any
  hostname or IP address instead.

- Server port. Normally 6667. Some servers may support other port numbers,
  but there doesn't seem to be any real advantage to using them. Do NOT
  enter the port number for secure IRC here; FujiChat does NOT support
  SSL/TLS encryption (and never will: the Atari would take a week to
  do the math needed to initiate a secure connection).

- Your nickname. The name you want to be known by, on IRC. This should
  be a short name, and different IRC networks allow different lengths. All
  networks allow at least 9 characters here, and FujiChat is limited to
  20. If you're new to IRC, you should know that spaces are not allowed
  here, and only some punctuation is allowed. Best bet is to stick with
  alphanumerics. Mixed case is allowed (you could be johnsmith, Johnsmith,
  or JohnSmith). Try to choose a name unlikely to already be in use.

- Your 'real' name. This is visible to all users on IRC, so you probably
  don't want to put your *real* name. The default is "FujiChat User", which
  is fine. Unlike the nickname, this doesn't have to be unique.

- Autojoin channel. If you enter 0 here, FujiChat won't automatically join
  any channel (you would use the /join command after connecting, instead).
  Normally channel names are prefixed with a # (e.g. #atari), but on
  Freenode, some channels have two # instead (e.g. ##atari). If the
  channel you want to join requires a NickServ login or similar, don't
  try to autojoin it. You'll have to connect, then manually authenticate
  (e.g. /m NickServ id <username> <password>), then manually join
  the channel.

- Background and foreground colors. Standard decimal Atari color register
  values (hue * 16 + luminance). The defaults are 192 and 12, which gives
  a dark green background with very bright green text.

- Disable bell. FujiChat is capable of using either the regular Atari
  "buzzer" audio bell, or a visible "bell" that briefly flashes the
  border color. Saying Y here disables both visual and audio bells.

- Visual bell. When you say Y here, you'll get the visual bell described
  above, and no audio bell. If you say N, you'll get the audio bell.

- Bell on msg. If you like to be notified when you get a private message,
  say Y here. If you find this annoying or distracting, say N.

- Show ping/pong. Default is N, and most people will want to leave it this
  way. Every few minutes, the IRC server sends a "ping" to FujiChat (or
  any other IRC client), and FujiChat responds with a "pong" to let the
  server know it's still "alive". If the pong never arrives, the server
  assumes the client is dead, and drops the connection. Showing the
  ping/pong messages is probably only useful for development/testing; in
  normal use they just waste screen space.

- Hide MOTD. Every time you connect to an IRC server, it sends you a
  "message of the day", which contains lots of general info about the
  IRC network. Unfortunately, on some networks, the MOTD is really
  long and verbose, and takes several minutes to receive and display
  on the Atari. There's no way to prevent the server sending the MOTD,
  and the server won't respond to commands (such as joining a channel)
  until it's done sending the MOTD. However, hiding the MOTD (not
  printing it) will speed up connection times, because the Atari isn't
  very fast at printing text and scrolling its sreen. Leave this option
  enabled, unless you're very curious about what's in the MOTD (and
  also very patient).

- Is this correct [Y/n]. If you made a mistake entering one of the
  settings, say N here and you'll get a chance to re-enter them.

- Save this config [Y/n]. Normally you'll say Y here, to save the config
  to D:FUJICHAT.CFG. If you're just testing a different config, you can
  say N. The config will remain in memory and FujiChat will use it. If
  you reload the setup/config program from within FujiChat, the settings
  from memory will be used as defaults for the prompts.

- Start FujiChat now [Y/n]. Does just what it says. If you're using the
  SIO2PC for both disk emulation and RS232, wait for FujiChat to finish
  loading (it'll show a "connect to server" prompt), then exit your disk
  emulation software (or e.g. "stop emulation" in Respeqt), then run the
  start_slip.sh script (or whatever else you use to start SLIP service
  on your PC/Mac/whatever). Press Enter to connect to the IRC server,
  and if you did everything just right, it should Just Work...

Notes:

Docs for uIP have been removed from this distribution, partly to save
space, and partly because the included version of uIP has been modified.
If you want to write a new app using uIP, you're better off starting
with the original sources, not my hacked-up mess.

Limitations:

As said before, FujiChat is only able to join one IRC channel at a time.

If your channel requires authentication with e.g. Freenode's NickServ
before being allowed to join it, you'll have to configure FujiChat
*not* to auto-join the channel. Once connected, you'll have to manually
authenticate, then manually /join the channel.

A lot of features found on IRC clients for more modern systems just
don't exist, either because of limited memory on the Atari, or because
the author just hasn't gotten around to adding them yet. There's no nick
list, logging, multiple windows, scrollback, triggers... channel text
from channel operators doesn't show an @ next to their nick... nick
completion (tab completion) doesn't exist, although you *can* use the
Tab key to respond to the most recent user who sent you a PM.

There are known bugs in FujiChat:

The formatting of server messages (join, part, quit, etc) is basically
non-existent. They're printed as they come in over the wire.

Not really a bug, but a missing feature: non-ASCII characters (accented
letters, British pound symbol, etc) are printed as inverse video
gibberish. At some point these will be handled more gracefully.