added the API docs to the minitel man page

OpenOS/usr/man/minitel

@@ -1,8 +1,25 @@
-# Minitel - Minitel daemon for OpenOS
+# Minitel for OpenOS
 
-The Minitel daemon handles receiving and relaying Minitel packets.
+This package includes the Minitel daemon, in etc/rc.d/minitel.lua, and the net library for using minitel, in usr/lib/net.lua.
 
-## Configuration
+## Minitel daemon
+
+### Installation
+
+#### With OPPM
+
+1. Run `oppm install minitel-util` - this will install both the Minitel utilities and pull in the Minitel daemon as a dependency.
+2. Run `mtcfg`
+
+This will walk you through setting up Minitel.
+
+#### Manual
+
+1. Place minitel.lua into /etc/rc.d
+2. Place your hostname into /etc/hostname
+3. Run rc minitel enable; rc minitel start
+
+### Configuration
 
 The minitel daemon keeps a settings file in /etc/minitel.cfg, which is loaded on start. This can be edited directly and the daemon restarted, or settings can be changed from the command line.
 
@@ -10,7 +27,7 @@ To change a setting, one invokes:
 
 `rc minitel set <option> <value>`
 
-### Available settings
+#### Available settings
 
 - port: the physical port the protocol runs over
 - pctime: the amount of time packets are kept in the packet cache
@@ -21,3 +38,45 @@ To change a setting, one invokes:
 - debug: whether to output debugging info to the display
 
 In addition, one can invoke to get large amounts of debug output, *rc minitel set_route <hostname> <local_modem> <remote_modem>* to add a static route, and *rc minitel del_route <hostname>* to delete a static route.
+
+## Net library
+
+The net library provides an easy way of interacting with the minitel daemon, and implements higher-level features of the stack.
+
+### API
+
+#### Layer 3
+
+*net.genPacketID()* - returns a string of random data
+
+*net.usend(host, port, data, pid)* - Sends an unreliable packet to *host* on *port* containing *data*, optionally with the packet ID *pid*.
+
+*net.rsend(host, port, data, block)* - Sends a reliable packet to *host* on *port* containing *data*. If *block* is true, don't wait for a reply.
+
+#### Layer 4
+
+*net.send(host, port, data)* - Sends *data* reliably and in order to *host* on *port*.
+
+#### Layer 5
+
+*net.open(to,port)* - Establishes a stream to *host* on *port* and returns a stream object
+
+*net.listen(port)* - Waits for another node to establish a stream, and returns the stream object.
+
+#### Stream objects
+
+*stream:write(data)* - Sends *data* to the node at the other end of the stream
+
+*stream:read(length)* - Reads data from the stream, up to *length* bytes.
+
+*stream:close()* - Ends the stream and prevents further writing.
+
+#### Variables
+
+*net.mtu = 4096* - The maximum length of the data portion of a packet for *net.send*
+
+*net.streamdelay = 60* - The time, in seconds, *net.open* will wait for a response while trying to establish a connection.
+
+*net.minport = 32768* - The lowest port *net.listen* will allocate to a new connection.
+
+*net.maxport = 65535* - The highest port *net.listen* will allocate to a new connection.