added the FRequest protocol, cleaned up the client

FRequest/FRequest-protocol.md

@@ -0,0 +1,10 @@
+# FRequest - Simple file transfer protocol
+
+FRequest is a <del>dumb</del> simple file transfer protocol for use on Minitel networks. A file transfer occurs as follows:
+
+1. The client initiates a connection to the server on the FRequest port (default 70)
+2. The client sends the path to the file they want, followed by a newline.
+3. The server responds with either the contents of the requested file, a directory listing, or "file not found" if there is an error.
+4. The server closes the connection.
+
+Servers may wish to implement restricting users to a specific directory.

FRequest/OpenOS/usr/bin/fget.lua

@@ -7,14 +7,14 @@ local port = 70
 
 local sep = host:find(":")
 if sep then
- port=tonumber(host:sub(sep+1))
+ port=tonumber(host:sub(sep+1)) or port
  host=host:sub(1,sep-1)
 end
 
-local s = net.open(host,port)
-s:write(path.."\n")
+local socket = net.open(host,port)
+socket:write(path.."\n")
 repeat
- l = s:read(1024)
+ l = socket:read(1024)
  io.write(l)
  os.sleep(0.5)
-until s.state == "closed" and l == ""
+until socket.state == "closed" and l == ""