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-
- Well, here it is :
-
- NetCb, the Novell network Chat box. ( NetCb = Network Chat Box )
-
- Using NetCb you can chat with other users on a Novell network.
-
- -- Disclaimer and stuff
-
- Although thoroughly tested (see also the credits) I give no warranty whatsoever
- on the usability of, the results of using or the good working of NetCb.
- It's up to you.
-
- Novell and Netware are trademarks of Novell Inc.
-
- Usage of NetCb is allowed for anybody, althought commercial sites are asked to
- pay a fee when using it. (Donations in the form of hardware are also welcome)
-
- Usage of NetCb means you agree with this.
-
- -- Using NetCb
-
- NetCb uses IPX so if you manage to get Novell up and running without IPX (I
- still can't figure out how you do that), you can't chat.
-
- NetCb uses IPX because NetCb works 'connection-less'. No virtual circuit is
- build between the chatters, anybody can come into the chat and leave it as
- he/she likes without extra communication between the chatters.
-
- To join a running chat on a network, simply fire up NetCb, think of a funny
- name for yourself and on you go.
-
- To get the other users an idea of who's chatting along, messages are send in
- the chat when you join the chat, leave it or change your nickname or change
- channels.
-
- When you join in the chat, the message is :
-
- <Nickname> / <server>\<loginname> [n] is joining in with the chat.
-
- So if your logged in as GUEST on a server named FILEBASE on logical connection
- 3 and you want to chat using the nickname Mr. Bean, a line is send in the chat
- looking like :
-
- Mr. Bean / FILEBASE\GUEST [3] is joining in with the chat.
-
- Because NetCb only uses IPX, it's not needed to be logged in. So you might also
- get something like :
-
- Mr. Bean / FILEBASE\<not logged in> [3] is joining in with the chat.
-
- You may even be detached (not using a logical connection on a server). Then it
- looks like :
-
- Mr. Bean / <not attached>\-- [0] is joining in with the chat.
-
- When chatting, the bottom of the screen looks like :
-
- | |
- +-----------------------------------------------------------------------------+
- | Mr Bean : _ |
- +-----------------------------------------------------------------------------+
-
- At this line you get a flashing cursor. Type the line you want to sent. When
- you press [Enter], the line is sent to everyone on the network (broadcast).
-
- Everyone running NetCb sees it appear on his/her screen, if he/she is 'tuned'
- into the same channel.
-
- Channels are implemented just like C.B. channels. You can select a channel
- using the up/down cursor keys or Alt-C to select channel 0. At the top of the
- screen the channel is indicated, along with the current time. The top right
- half of the screen looks like :
-
- --- 12:11 --- Channel [11] v --+
- |
-
- Just right to the channel indicator is an 'activity' indicator. Every time a
- packet is recieved for NetCb (all packets are checked for a 'signature' which
- consists of 'KH' and a 0x01) the activity indicator will turn right one step.
-
- Using F1 you get a window which shows the available keys. They are :
-
- Arrow keys to select channels (0..19)
- Alt-C to select channel 0
- Alt-W to get the userlist (private chat not implemented yet...:-(
- Alt-N to select a new nickname (the other users of the chat will get a warning
- message..)
- Alt-T to get a scaled graph on the packets recieved in the last minute in every
- channel. So if you get the strange idea 'where is everybody ?', you can
- look in this window.
- Alt-I information on NetCb. It shows the short info, the credits for this program
- and some info on you and the total number of packets recieved since
- starting.
-
- When you press Alt-W, you get a window and a 'Building list...' line. To make
- sure every answer to the "who's there ?" packet is recieved, NetCb waits half
- a second. After that you get a complete list of the users. The order in which
- they are shown is kinda random and will change every time you access this
- window. This is due to the fact that NetCb waits a short random time after
- it recieves a "who's there ?" packet to avoid a great number of network
- collisions.
-
- You can browse through the list and press [Enter] to get more info on the
- selected user. In this info is also the network address, so anyone can be
- traced on the network.
-
- -- Notes for system managers
-
- NetCb does not cause much network overhead. For each line a packet of 168 bytes
- data is sent. When someone asks a userlist, every station waits a short random
- time before sending it's answer.
-
- NetCb packets don't not cross bridges. In this version at least.
-
- -- The 'single network' problem.
-
- NetCb can send packets only on the same network. At this moment I haven't
- figured out a good way to get all available network numbers from a bridge or
- so. I know there must be some way to read out the routing table using
- diagnostics calls.
- (Anyone with a good C-source to accomplish this can get in the 'greetings go
- to' list...)
- I'm also looking into the possibility of using SAP (Server Advertising
- Protocol) to accomplish this since Diagnostics is not implemented in Netware
- 386 :-(
-
- -- Credits
-
- Thanks go to numerous people. Of course thanks goes to the system managers at
- my school who couldn't figure out what was going on on the network for about
- four weeks. Now they want to stop me from using it at school. Wait and see.
-
- Thanks also goes to the ones who tested it at my school. Famous names like
- 'Sammy Suitcase', 'Slim', 'Me again', 'Elmer Fudd', 'Scatterbrain' and others
- helped me to test NetCb throroughly.
-
- Thanks goes to Charles G. Rose for writing an excellent book about programming
- Netware : 'Programmers Guide to Netware'.
-
- -- Contacting the author
-
- I'm open to suggestions, remarks and so. I also would like to get an idea of
- the usage of NetCb, so you can contact me in the following ways :
-
- Internet : koos@kzdoos.hacktic.nl. (preferred)
-
- Fidonet : Koos van.den.hout at 2:500/101.11012. It's as simple as that.
-
- BBS : +31-3402-36647. It's my own BBS. Full Dutch and English menus available.
- Look at the local time here before yelling me..
-
- Snailmail : Koos van den Hout, Goudvink 12, 3435 RJ Nieuwegein Netherlands.
-
-